Showing posts with label HDTVs. Show all posts
Showing posts with label HDTVs. Show all posts

Tuesday, August 16, 2011

Sep 22, A Wiring Solution for HDTVs: A simple neat alternative to in-wall wiring

Camouflaging on-wall cabling - The Superb Home Theater solutionSurely, everyone would agree that a wall-mounted flat panel LCD TV or plasma television would look at its best when all connecting power and audio/video cables are completely hidden.

However, most often, there isn't any pre in-wall ducting through which to pass A/V cables and power cords between the TV and the interconnecting gear.

And if there is any empty conduit buried in walls, this is probably the ¾-inch (20mm) diameter type used by electricians in domestic installations. This is too small to carry the larger diameter audio and video cables.

One should keep in mind that any wiring solution for audio and video cables should take into account that these cables have limited pull strength with respect to electrical wiring, and come with pre-installed connectors. In other words, you need a relatively large diameter conduit to pass audio and video cables when concealing cables in walls.

Aesthetically, running cables through a wall yields the best results. Yet from a practical perspective, this requires substantial DIY skills, and a lot of effort especially when retrofitting a room. Furthermore, should you decide to hire a professional installer, the whole job can turn out to be pretty expensive - costing several hundred dollars - and often complicated to manage.

In addition, once cables are installed in walls and access holes closed, it would not be easy to replace any faulty cables, nor pass extra cables later.

Equally important, burying cables in walls as a wiring solution is invasive in nature. It requires expensive patching should the day come when you decide to move that flat panel TV elsewhere.

Moving to a surface mounted wiring solution would do away with all these difficulties and installation expense. Up to now, most inexpensive wiring solutions intended for the DIY installer consisted of nothing more than PVC trunking. It is true that these are available in various shapes and colors, but these wiring solutions with their cheap plastic feel, do not complement the stylish look of modern flat screen televisions.

But… don't despair! Luckily, things are starting to change thanks to the availability of a few 'stylish' wiring solutions on the market targeting the DIY home installer.

One such solution we have come across is a wiring solution kit from 'Superb Home Theater'. It is well thought-out, easy to install, relatively inexpensive, and once installed, has the custom look of an in-wall installation without the permanence and expense associated with buried wiring. 

A close-up of the Superb Cable Channel systemIn principle, the Superb Home Theater wiring solution consists of low profile (1" x 5") wall-mounted cabling channels, designed to hide audio video cables and connecting power cords in a flat panel TV installation.

Mind you, they are also suitable for use in any other application when you want to conceal short runs of on-wall cabling between appliances.

Thus, instead of drilling sizable holes in drywall, or chasing channels for conduit in brick wall, you just camouflage interconnecting cables between the TV and the remaining equipment on the front side of the wall.

The Superb Home Theater channels are available in various standard lengths - ranging from a 19-inch section (model WS12) to conceal up to 12 inches of on-wall cabling, up to 46-inch (model WS30) for cable runs of up to 30 inches. They are also available in custom lengths up to 96 inches. Price starts at $39 for the WS12, while custom lengths cost $25 per linear foot excl. shipping and handling.

These channels come with a rounded edge design on the front that blends perfectly well into the wall between the display and the equipment rack.

The backside is hollow and includes two separate vertical channels, each ½-inch in depth by 1?-inch width. These are large enough to hold any interconnecting cables you might ever need for your flat screen TV.

Cables are kept in place using specially designed plastic wire retainer flaps that hold the wiring in place during installation.

These channels are made from ultra light (UL) Medium Density Fiberboard and come in both smooth or plaster-textured finish, and prime coated ready for paint.

Wire retainer flaps on the backside of the channel hold the cables in place.Each wiring solution kit comes complete with wall fasteners, a foam brush to paint the channeling once the installation is complete, a well presented installation guide, and 1-year limited warranty.

Installation is simple and straightforward. As long as you can use a screwdriver, a hammer, and a spirit level, you can do the job. You would also need a small electric or battery-operated drill when dealing with a brick wall installation.

Caulking is optional

Applying caulk is optional but it leads to a more seamless look.

The complete installation should not take more than 45 minutes - even if you are not a seasoned DIY type.

These wiring channels would almost disappear once painted with your room color paint.

And if you want a more seamless look, you can apply caulk around the edges before painting.

The result is a pleasing custom look that matches perfectly well with any flat panel TV and room decor.

The final look! More information

on the Superb Home Theater Wiring Solution is available on the

Superb Home Theater website at:

http://www.superbhometheater.com

While the Superb Home Theater wiring solution represents a great option to hide and manage those unsightly AV cables between your TV with the rest of the equipment, yet since the release of the Superb Home Theater solution just over two years ago, a number of other manufactures have come up with similar wiring systems aimed at making it easy for the DIY to conceal those surface AV cables while still achieving a professional looking and aesthetically pleasing result.

A case in point is the range of surface mounted Omnimount CMK Cable  management covers.

Available at amazon, this line covers a whole set of mounting options ranging from 1-inch to 4-inch channel widths. The Omnimount system comes in the form of  a kit that includes three interlocking straight portions for a total length of 48-inches, one 90° cable cover, 2 end caps, screws, and attachment hardware.

Multiple kits can be interlocked together to provided added length. In addition, like the Superb Home Theater wiring solution, the Omnimount CMK Cable Management system can be painted to better match the rest of your room decor.

The end result - Monster Cable CleanView installationMonster Cable CleanView Cable Management System: A similar cable management solution is also available from Best Buy. In particular, the Monster Cable CleanView On-Wall wiring solution offers similar features to the Superb Home Theater Wiring Solution detailed in this article.

However, unlike the Superb Home Theater wiring solution, the Monster Cable CleanView solution can be simply fixed on to your wall with double-sided tape; you may also use drywall screws if you prefer and these are included with each kit. In addition, it can be cut with an ordinary scissors, and like the other two wiring solutions, it can also be painted to match your room color.

One full kit includes a total of four sections by 16-inches in length that can take between two to three AV cables. Included with the kit, there are also two end covers and one right-angle fitting, and 16 cable clips that ensure cables remain in their place once fixed in the cable channel.

Monster Cable CleanView on-wall cable management system...back to LCD TV Mounts (1) - A Basic Installation Guide

If you are in the market for a surface mounted wiring solution or cable management system, we advise to visit the amazon storefront; the vast choice of products and the various buying options available from the different retailers are among the best online. 

You can search the amazon storefront a surface wiring solution without leaving our site by using the amazon search box below; your search results will appear here under.


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Saturday, February 12, 2011

Samsung Announces New Range of LED HDTVs

">Samsung UN46C5000Samsung UN46C6500Samsung UN46C7000Samsung UN46C8000Samsung LN55C650Samsung UN55C6300Samsung UN55C6500Samsung UN55C7000Samsung UN55C8000Samsung PN58C7000Samsung PN63C7000Samsung PN63C8000SonySony KDL-40HX800Sony KDL-46HX800Sony KDL-60EX500Sony KDL-40EX400Sony KDL-40EX500Sony KDL-46EX500Sony KDL-52EX700Sony KDL-52W5100Sony KDL-52Z5100Sony KDL-55HX800Sony KDL-60EX700PanasonicPanasonic TC-P42C2Panasonic TC-P42U2Panasonic TC-P50C2Panasonic TC-P42G10Panasonic TC-P42G25Panasonic TC-P42GT25Panasonic TC-P42S2Panasonic TC-P46C2Panasonic TC-P46G10Panasonic TC-P46G25Panasonic TC-P46S2Panasonic TC-P50G10Panasonic TC-P50G25Panasonic TC-P50GT25Panasonic TC-P50S2Panasonic TC-P50U2Panasonic TC-P50VT25Panasonic TC-P54G10Panasonic TC-P54G25Panasonic TC-P54S2Panasonic TC-P54VT25ToshibaToshiba 40UX600UToshiba 42ZV650UToshiba 46XV645UToshiba 46G300UToshiba 46UX600UToshiba 46WX800UToshiba 55G300UToshiba 55UX600UToshiba 55WX800UToshiba 55SV670USharpSharp LC40LE700UNSharp LC42D85USharp LC46D85USharp LC52D65USharp LC52D85USharp LC52SE94USharp LC65D64ULGLG 42LD450LG 42LD520LG 42LD550LG 42LE5400LG 47LD450LG 47LD650LG 47LE5400LG 47LE8500LG 47LX6500LG 52LD550LG 55LD650LG 55LE5400LG 55LE8500LG 55LX6500HDTV GuidePlasma vs LCD HDTVWho Makes The Best HDTVHow to Compare HDTVThe Right HDTV Size For Your RoomWhat is DLNA?HDTV News Samsung Announces New Range of LED HDTVs

Samsung recently announced a new line of LED-backlit HDTVs which are the slimmest to date. They call these their new Luxia LED HDTV.  Nobody is going as far as Samsung currently in R&D and design innovation. The company is the only one thus far to announce a full lineup of edge-lit LED-based LCD TVs that offer the most advanced technology and design you can get.

Samsung Luxia LED HDTVSamsung Luxia LED HDTV

The name “LED TV” sounds simple enough, but it’s important to remember that these one inch-thin TVs are actually normal LCD  TVs that use LEDs (light-emitting diodes) instead of the standard fluorescent backlights. These new LED TVs are somewhat different from some recent models like the Sony KDL-55XBR8 and Samsung LN46A950 which comes with local dimming technology with groups of LEDs behind the screen that can be dimmed or turned off to achieve deep, dark blacks. The 2009 Samsung LED TVs do not utilize local dimming, so they may not match the picture quality of the local dimming sets. Edge-lit LED-based displays are also 40 percent more energy-efficient than standard Energy Star-certified LCD sets.

Each model among the three series of Samsung’s “Luxia” lineup measures just 1.2 inches thick, thanks to that LED lighting system. The cheapest model, the 32-inch UN32A6000 ($1,599), will cost more than twice as much as Samsung’s standard 1080p 32-inch model LN32B530 ($749) does. The 46-inch UN46B6000 ($2,799) is more than $700 the equivalent standard 120Hz set, model LN46B650 ($2099).

The Luxia 7000, meanwhile, will have 4 HDMI ports, 120Hz refresh, USB 2.0 and Wireless DLNA streaming support, as well as using the Yahoo! Widget platform for video from YouTube, eBay auctions, news and photo sharing.  In the future, social media widgets and streaming TV shows and movies are planned.  Finally, the Luxia LED 8000 series has 240Hz refresh, together with Samsung’s AutoMotion blur-reduction, a new Touch of Color design with prism-light and chrome edging.

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Wednesday, February 9, 2011

Top 10 Home Theater HDTVs by Price

Popularity based on the last 100,000 visitors. Updated Jan 30, 2011

8.  NEC MultiSync P461
46" (117cm) diagonal, 16:9, 3000:1 contrast, $3,499 MSRP, LCD Monitor 1.  VIZIO E422VA
42" (107cm) diagonal, 16:9, $659 MSRP, LCD TV 3.  VIZIO M421VT
42" (107cm) diagonal, 16:9, $849 MSRP, LCD TV 8.  Sanyo DP46840
46" (117cm) diagonal, 16:9, $799 MSRP, LCD TV 9.  Sanyo DP52440
52" (132cm) diagonal, 16:9, 5000:1 contrast, $999 MSRP, LCD TV 10.  Sanyo DP50740
50" (127cm) diagonal, 16:9, $649 MSRP, Plasma TV 4.  Sanyo DP42740
42" (107cm) diagonal, 16:9, $429 MSRP, Plasma TV 6.  Sanyo DP32640
32" ( 81cm) diagonal, 16:9, 3000:1 contrast, $349 MSRP, LCD TV 10.  VIZIO VO32L
32" ( 81cm) diagonal, 16:9, 1100:1 contrast, $499 MSRP, LCD TV 02/06/11 - 04:10 AM PST | ©1999-2011 HDTVSolutions.com

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Thursday, October 7, 2010

KISS-Branded HDTVs Ready for Crazy Crazy Nights

God may have given you rock and roll, but only Roundtable Concepts has said it will deliver the first KISS-branded TVs.

The LED HDTVs will ship in four sizes ranging from 55 inches to 32 inches. Roundtable is also offering a deal - if a customer buys one of the 55-inch LCD TVs for the retail price of $1,988.88, Roundtable will throw in a 32-inch LCD TV for free.

Roundtable said that only 15,000 of the new TVs will be made. Each will come with a special "diamond finish," includes the official KISS logo, and splash an image of the band on the screen during the eight seconds or so the TV requires to fully power on.

Roundtable did not release data for how many nights and days the new HDTVs could rock and roll for, and then party.

The LED HDTVs are designed and built by Roundtable with a Chinese ODM partner, said Jay Lent, vice president of sales for Roundtable, in an email.

The listed specifications include a display resolution of 1,920-by-1,280, brightness of 450 lumens, static contrast of 5000:1, dynamic contrast of 5,000,000:1, and RCA, components, VGA, and HDMI inputs. All feature edge-lit LED lighting.

The 55-inch model includes 240-Hz technology, plus four HDMI, 2 USB, 1 component video, 1 composite video, 1 PC, and 1 RF connector. It also has a pair of 10-watt speakers.

While Roundtable will sell the 55-inch model for $1,988.88, the company will sell a 46-inch, 120-Hz model for $1,388.88. A 42-inch model is available for $1,188.88, while the 32-inch version costs $818.88.

Roundtable will ship the KISS TVs for free, the company said. The company also includes a line of TVs featuring characters from the Marvel comic books, and has struck a deal for a soon-to-be-released line of LED HDTVs under the Paramount Pictures brand.

Roundtable said it signed the deal with Live Nation, the licensing agent for KISS.

Editor's Note: This story was updated at 10:03 PM PT with additional comment from Roundtable's Lent.


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Toshiba Announces 3D Blu-ray Players, HDTVs

Toshiba America this week jumped feet-first into 3D with its first 3D TVs, and the announcement of a 3D-capable Blu-ray player.

However, the offerings won't include the reported 3DTV that won't require a special pair of 3D glasses.

Users purchasing the TVs must do so as part of a package, if they wish the full 3D effect, Toshiba said. Toshiba said this week that it would ship a 3D-capable Blu-ray player, the BDX-3000, in September, for $249.99. That player must be connected to a 3D-capable TV via a special HDMI cable capable of transmitting the bandwidth necessary for 3D content. Toshiba also claimed that the 3D glasses necessary to view the content were "optional".

The BDX-3000 is the company's first 3D-capable Blu-ray player, with features including BD 2.0 compatibility and and SD card slot. It's also connected via either Ethernet or Wi-Fi dongle, and can access online content from Netflix, Blockbuster on Demand, and Pandora, Toshiba said. It also supports Dolby True HD and DTS-HD Master Audio | Essential, it said.

The new 3D TVs will include the 55-inch 55WX800 Cinema Series 3D LED HDTV for $3,299 SRP and the 46-inch 46WX800 Cinema Series 3D LED HDTV for an SRP of $2,599.99, both available now. Toshiba also announced the 55VX700 and 46VX700 Cinema Series LED HDTVs, which lack 3D capability, and will cost $2,799.99 and $2,299.99, respectively.

The 240-Hz WX800 sets include 1.8-inch depth and support for MPEG4-MVC, RealD and "select other" 3D formats, which can be displayed in a "3D Resolution+" mode optimized for 3D content. The display supports a 7 million: 1 contrast ratio.

Both members of the WX800 series include built-in 802.11n Wi-Fi, plus four HDMI connections, including an HDMI-CEC interface that can be used to control other devices plus a component input. That connectivity allows them to access Toshiba's Enhanced NET TV services via the Yahoo Connected TV. Netflix, Blockbuster on Demand, and Pandora are also accessible.

The VX700 sets include 120-Hz technology and a 5 million:1 contrast ratio. According to Toshiba, however, the VX700 appears to perform true LED backlighting, while the higher-priced WX800 uses edge-lit LEDs. Toshiba said the two HDTVs also include Wi-Fi built in, with two USB ports, an SD/SDHC card slot, and support for DLNA technology. Netflix, VUDU, and Pandora were cited as available services.


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Tuesday, October 5, 2010

Aug 27, 2010 Panasonic Plasma TVs - Product Review Part 2: Panasonic G20/G25 HDTVs

Panasonic first introduced a THX certified display picture mode on its PZ800U in 2008. At that time, Sound & Vision Magazine stated that 'This set's THX picture mode delivers exceptionally natural-looking color without making you jump through lots of picture-adjustment hoops, and its deep shadows will make even fans of Pioneer's Kuro plasmas stand up and take notice.'But the breakthrough for THX display-certified HDTVs came in 2009 with the G10/G15 Panasonic Plasma TVs when these delivered the best 'out-of-the-box' one step picture calibration, albeit with what many considered a dim picture. Yet the real breakthrough with these 2009 series was that big screen plasma HDTVs with THX display certification were for the first time available to the mass HDTV market.It is therefore only natural that with the new G20 and G25 series with THX picture mode, many are now expecting these HDTVs to follow on the footsteps of their predecessors by delivering improved performance.And improved picture performance is an area in which these two Panasonic premium series would not disappoint. It is all thanks to the new NeoPDP Panasonic plasma display panel, which for the G20/G25 is being termed Infinite Black panel; a panel whose designed has been partly assisted by former Pioneer plasma engineers. As further explained under part 1 of this review article, the new panel makes use of a deeper cell structure, improved phosphors, new electrode layout, reduced electrical pre-discharge, and a new anti-reflective coating. The overall result is a panel that is capable of displaying exceptionally deep, rich blacks even under bright room conditions while still yielding superior shadow detail in the darkest parts of the image. This is all complemented by a most interesting feature set. It is no surprise therefore that despite these Panasonic plasma TVs miss on what TV makers think is the hottest spec for 2010 - 3D, sets such as the 50-inch TC-P50G25 and 54-inch TC-P54G25 are among the HDTVs most in demand by home theater enthusiasts and videophiles looking for the best picture at a more affordable price.But... as we often say, no HDTV has ever delivered the perfect picture yet, and the G20/G25 Panasonic plasma TVs are no exception.These two series of Panasonic plasma TVs are in effect one and the same thing in that both share exactly the same features with just one minor non-picture related difference. The Viera Link application on the G25 comes with network camera support - supporting up to eight cameras to help you monitor your house security direct from your TV! This means we expect identical picture performance from these two Panasonic plasma TV series.The only other difference is mainly one of models covered by each series. The G20 Panasonic plasma TVs cover two screen sizes, the 50-inch TC-P50G20 ($1,500) and the 54-inch TC-P54G20 ($2,000). Instead, the G25 Panasonic plasma TVs comprises four screen sizes, the 54-inch TC-P54G25 ($1,430), the 50-inch TC-P50G25 $1,100), the 46-inch TC-P46G25 ($1,100), and the 42-inch TC-P42G25 ($900). During 2009, Panasonic plasma TVs have built a reputation as the ones that deliver the deepest blacks; 2010 G-series Panasonic plasma TVs are no exception, delivering initial superb black levels. We have to emphasis on the word 'initial' due to a performance issue which cropped up with 2009 Panasonic Viera plasma TVs in February 2010 when these started losing their deep blacks. Panasonic said they have resolved the issue for 2010 but no doubt, Panasonic still has to prove itself in this respect. In any case, plasma TV reviews published on major sites agree that the Panasonic G20/G25 plasma HDTVs deliver superior black level performance. It seems that as with 2009 HDTVs, an exceptional deep shade of black continues to be Panasonic plasmas' best attribute.But apart from a deeper shade of black, the new G20/G25 series of Panasonic plasma TVs come equipped with two main additional features over the more basic S2 series, with the most important being the addition of an improved user-adjustable THX picture mode, and the upgraded VieraCast.For 2010, Panasonic seems to have scrapped its 2009 slim design completely. Instead, all 2010 Panasonic plasma TVs - including the G20/G25 HDTVs, come with a 3.5-inch thickness, making these Panasonic plasma TVs among the ones with the thickest profile for 2010. Overall design still delivers the impression of enough flatness when viewed from the front.Panasonic G25 series with its minimalistic glossy black designThe G20/G25 design takes a rather minimalistic yet aesthetically pleasing all glossy black look complemented by a subtle silvery horizontal strip along the central part of the bottom frame and that fades into black.All is complemented by a matching glossy black TV support stand that rests over a black circular base; the latter is the major design differentiator between premium and flagship series and the cheaper Panasonic plasma TV series such as the S2. The stand support provides a ±10 degrees swivel action.As is the case with the latest Panasonic plasma TVs, the bottom part of the frame houses the set down-firing speakers; like 2009 models, the new 2010 comes equipped with a single full range driver for the left and right channels instead of the two-way tweeter and woofer speaker system adopted on corresponding 2008 models. Down-firing speakers are essential to help designers achieve the set compact form factor but they do not deliver the best sound. The G20/G25 speakers still produce adequate sound but nothing that match the superb picture quality of these Panasonic Viera plasma TVs.All set controls and inputs are positioned on the sides which make them completely hidden from front view.The G20/G25 Panasonic plasma TVs menu follows on the footsteps of the cheaper series and includes the same basic user menu and navigation structure. It is an updated version of the menu system adopted on 2009 HDTVs - with onscreen help and the presence of a permanent navigation column of icons on the left of the screen - sort of the navigation bar on a webpage. Overall, the new menu system is easier to navigate around. The new TV remote control is again an improved version of what we saw on 2009 G10/G15 series. You still cannot use it to control other gear but the 2010 version comes with more illuminated buttons, this apart from the relatively large and well-differentiated layout that further help make for ease of identification in the dark home theater environment. The new clicker also comes with what appears to be traditional for Panasonic - a trio of hot keys positioned around the central cursor control, Viera tools, VieraCast, and what used to be the Viera Link on 2009 remotes has now been replaced by the Menu button.Panasonic new NeoPDP panel: As indicated in our introduction, Panasonic equipped the G20/G25 plasma TV series with its new Infinite Black NeoPDP panel and which thanks to its new cell design structure, is capable of displaying exceptionally deep, rich blacks even under bright room condition while still yielding superior shadow detail even in the darkest parts of the image.And by dispensing of the second front glass panel used on previous generation plasma display panels, Panasonic engineers succeed to cut down on image degradation from internal reflections while increasing contrast. A new anti-reflective coating is bonded onto the top glass panel itself; this drastically reduces glare from external light sources while increasing the contrast when viewing under bright lighting. Other improvements include 1080 lines of motion resolution and four times the luminous efficiency compared to Panasonic’s 2007 panel, meaning it requires just one-quarter the power to produce the same brightness level. These panels are also have a rated lifetime of 100,000hrs, support 6144 shades of gradation, and to what's it is worth, come with an improved contrast ratio of 5,000,000:1 over the 2,000,000:1 of the cheaper S2 and 2009 G10/G15 series. There is no doubt the latest mega-contrast ratings quoted by TV markers are more than just impressive. However, keep in mind that manufacturer's rating for dynamic contrast have reached values where the impact in perceived picture performance is far less than what manufacturers are trying to imply with their mega numbers. Most TV manufactures are taking consumers for a ride by quoting ultra high ratings for contrast ratio using unspecified test methodologies. Do not let TV makers play the number game! A good picture is not made of contrast alone. More on contrast ratio can be found in our article here.   THX Display Certification: The THX picture mode on these Panasonic plasma TVs is mainly responsible for the set excellent picture performance. Panasonic THX mode provides the best out-of-the-box default picture setting and represents the best one-step calibration on 2010 HDTVs. Engaging the THX mode means the TV picture performance will conform to a set of home video display standards issued by THX in 2008 for its certification. THX certification includes among others an in-depth analysis of display uniformity, contrast, luminance, color levels, and resolution, as well as a complete review of the display scaling, deinterlacing and overscan capabilities. THX do not use a grading curve, meaning that it is either a pass or fail. In other words, from a THX certified display, one should expect the best picture.  What THX do not say is by how closely the various parameters should be met for a display to pass the THX display certification. This explains why some HDTVs without a THX display certification may still perform better than others with a THX picture mode.What really makes the new THX mode unique both with respect to previous implementations as well as to the LG competition, is that for 2010, the Panasonic THX mode comes with a much appreciate enhancement - that of being user adjustable; and this apart from delivering plenty of light output even before any adjustments. LG do not provide user adjustments with its THX picture mode but then makes up for the dimmer setting of its dim Cinema THX mode by including a second THX mode -termed THX Bright room.Previous THX display certification implementations have always been non-user adjustable and often criticized by users for their relatively dim picture, one that was mainly suitable for viewing under a dark room environment.Picture Controls: The THX mode is one of a set of six user-adjustable picture modes available on G20/G25 Panasonic plasma TVs. Other picture modes include Vivid - the brightest mode of all, Standard - dim-by-design to qualify for Energy Star, a Custom picture mode that allows for completely customization of the different picture settings independent per input, and a Game mode. The sixth mode is a Photo mode when using the JPEG menu in which case the custom mode will display as Photo.Unfortunately, the Standard mode is too dim for practical use except in the dark room. As stated, this is dim-by-design and is a trick most TV makers are using to ensure their HDTVs qualify for Energy Star 4.0 specifications.The Game mode is accessible both through the set picture menu and direct via a Game button on the remote control. Panasonic says that this should help deliver quicker image response while also producing darker images more clearly. Selecting the games mode will also automatically select that input which has been labeled 'Game' in the input naming menu. However as already expressed elsewhere on this site, unlike other TV makers, the Panasonic game mode is just another picture mode. It does not eliminate any video processing to help minimize delays between the player and the action on the screen.All the picture controls on the G20/G25 come with independent memories per input. Referring to picture settings, for 2010 Panasonic is providing an enhanced set of user-adjustable picture controls that is more in line with that provided by the competition. This is a welcome enhancement as Panasonic HDTVs used to come with a rather restricted set of picture controls.New for 2010 is a 4-point fine color temperature control system - a sort of reduced version of the 10-point white balance system implemented on premium Samsung and LG HDTVs. New also is a six-preset gamma adjustment system - missing on 2009 series, and an on/off blur reduction setting to help improve the image motion resolution.Apart from the above, there are five color temperature presets - Normal, Warm 1, Warm 2, Cool 1 and Cool 2, with the Warm 2 setting is the one closest to the D65 standard. Five aspect ratio or Format settings for HD and four for SD content are also provided; these include a zoom mode that allows the user to adjust both the horizontal and vertical position of the displayed part of the image.Panasonic G20/G25 plasma TV series include a 48Hz refresh rate for 1080p/24 signals but which suffers from too much image flicker and is useless; instead, the 2:3 pull-down works with both standard and high definition sources but this means that G-series Panasonic plasma TVs are not capable of properly displaying the cadence of 24p content.As for advanced features, these include a C.A.T.S. function, or contrast automatic tracking system function that senses ambient light and optimizes the contrast by adjusting the brightness and gradation on the fly to better match the ambient light level; video and MPEG noise reduction settings which can be set to either on or off; and a black level setting - light or dark - for use when viewing content carried over the HDMI inputs.You would not get color management support but these Panasonic plasma TVs still include an on/off setting to activate a basic color management function that enhances the green and blue color reproduction.VieraCast: Apart from THX, the next most important upgrade over the S2 series is the addition of much improved Panasonic VieraCast with its assortment of online content. For this year, in addition to YouTube, Picasa Web Albums, Bloomberg news and stock information, local weather, up-to-the-minute content from USA Today, and Amazon Video on Demand, it now offers Pandora Internet Radio, movies streamed from Netflix, sports from FOX Sports, tweeting web communications with Twitter, and even home video and audio conferencing with Skype; the latter however requires users to purchase the $150 Panasonic TY-CC10W Skype Enabled communication camera.A welcome enhancement with Panasonic VieraCast is the possibility to use a USB keyboard for easier tweets.For the first time, Panasonic is providing a USB2.0 wireless dongle (DY-WL10 Wireless LAN Adapter) for its HDTVs that supports up to 802.11n connectivity in a similar manner to Samsung HDTVs; mind you, a third party dongle will still work.Viera Link is another Panasonic proprietary feature that uses the HDMI-CEC support to control other compatible devices. Panasonic DY-WL10 Wireless LAN AdapterUnlike VieraCast, Viera Link is available on the less expensive Panasonic series with the difference that the Viera Link implementation on G25 Panasonic TVs includes the option to connect a network camera (with multi-screen support) to your TV for household monitoring.Image Retention Menu: These Panasonic plasma TVs come with a full suite of anti burn-in features or as the company calls it 'image retention' even though such an occurrence with today's plasma display panels under normal viewing is no longer an issue. These include a pixel orbiter that moves the entire image gradually around the screen, and an option to set the 4:3 mode to include dark, mid, or bright instead of black bars on either side of the picture.  The mid gray has less chance of causing image retention but ideally, you should choose a setting that is more in line with the average content brightness level. In the remote chance of a retained image, there is also a scrolling bar feature that sweeps a white bar across a black screen to help erase the retained image.Connectivity is more than adequate but still falls short of one HDMI with respect to the 2010 competition from Samsung and LG. In total, G-series Panasonic plasma TVs come with two component video inputs, two composite video inputs, three HDMI ver. 1.3 complete with both Deep Color (x.v.Color) support and CEC via Panasonic Viera Link, two USB2.0 ports, a VGA-style PC input, an Ethernet port for network connectivity, and a digital audio output.Unfortunately, you would not get any analog stereo audio output on these HDTVs. Instead, you get an SD memory card slot which works with the Viera Image viewer for photo, movie, and music playback direct on your Panasonic plasma HDTV; the memory card slot on the G20/G25 can accept up to SDXC Card  with 64 GB and the miniSD card (by using the appropriate card adaptor.) Supported files include MPEG2/AVCHD for movies and JPEG for still images.Audio output is 20W total power over the two down-firing speakers; there is no virtual surround sound feature but these 1080p Panasonic plasma HDTVs will output surround sound over the set digital audio output connection.Power saver modes: These Panasonic plasma TVs come with a few eco-friendly features like the eco/power saving option under the Viera link menu. There is also a standby power save setting to put all connected Viera link compatible devices in eco-standby mode when the TV is powered off. Similarly, the 'TV Auto Power Off' features when activated will turn the TV off in case there is no signal for more than 10 minutes, or in the absence of activity either through the remote control or set side panel for more than 3 hrs.There is no doubt that G20/G25 Panasonic plasma TVs are great performers, and if there is an area in which these Panasonic plasma TVs excel, it is in picture quality, and in particular, in their ability to  deliver extremely deep blacks. The latter is among the blackest you can get at this price bracket in the post-KURO era. Cnet measured an initial black level of 0.007 ftl. This is exceptional; the only problem is whether these Panasonic Plasma TVs will still manage to maintain this level of black within a reasonable time of use. In any case, according to comparative reviews by Cnet, the  only TVs that measured a deeper black were the Pioneer Kuro reference display (PRO-111FD), the LG LH8500 LED TV with local dimming, and the 2010 Panasonic TC-P50VT25 flagship 3D plasma TV. The LED TV however fails when it comes to maintaining a uniform black level across the entire screen area due to blooming and lack of screen uniformity - typical of all LED TVs; none of these are issues with plasma TVs. In this respect, the overall black level performance of plasma TVs is definitely visibly superior.As with 2009 Panasonic plasma TVs, the new G20/G25 HDTVs exhibit some fluctuations in the blacks with test material having excessively high average brightness levels. A few users have also noticed these fluctuations with some program material. But according to the same Cnet review, overall black level still remains stable enough with the majority of program content, to the point that it often very hard to perceive, and one that surely does not impact the set overall solid performance.In THX mode, the out-of-the-box overall picture performance is excellent with deep blacks, accurate colors and much improved color decoding over that of Panasonic's 2009 Series plasma TVs. This is complemented by a uniform grayscale, a decent stable gamma, and a bright enough picture for viewing under normal room light conditions; the latter is the most welcome enhancement over 2009 THX implementations.Cnet in their TC-P50G25 review says that grayscale is slightly 'less-than-perfect' when compared with their Pioneer Kuro reference display, but it is still one that falls within the D25 in THX mode. This is important as a grayscale that remains very close to the D65 (or 6,500K) standard across the entire brightness range helps preserve color fidelity at all brightness, or luminance levels. Many TVs fail here - visibly shifting towards red in the darker areas and blue in the lighter parts of the image. This is not the case with these Panasonic plasma TVs and despite the slight inaccuracy pointed out by the Cnet reviewer, the same reviewer adds that the difference between the reference display and the Panasonic G25 series HDTVs is one that is only noticeable in a side-by-side comparison.Directly related to the set deep blacks is shadow detail - which on the G20/G25 Panasonic plasma TVs is slightly less natural than that seen on equivalent 2009 G-series Panasonic Viera plasma TVs. It is still very good but shadow detail in the darker parts of the image tends to be a bit lighter than expected. This is due to the somewhat lighter gamma in the darker parts of the image. Cnet measured a gamma value of 2.07 against the ideal 2.2/2.4 - thus explaining the slightly brighter image in the shadow detail. Home Theater magazine measured a less consistent gamma for the TC-P50G20 - from a low 1.98 and 2.14 from 20 IRE to 80 IRE, decreasing to 2.31 at 90 IRE - again confirming that the image will be lighter in the darker parts. But as stated by the same Home Theater magazine review, in practice the low gamma on the G20/G25 HDTVs is not obvious to the eye. There is no way of adjusting the gamma in THX mode but then this is the mode that delivers the most accurate and stable gamma across the entire brightness range. Instead, the variable gamma options in Custom mode tend to produce a much less stable gamma. The THX mode on the new G-series Panasonic plasma TVs delivers the most accurate color gamut, with a primary and secondary color accuracy that is spot on to the HD standard. Colors remain true even in the darkest parts of the image. In addition, these HDTVs deep black levels and solid color decoding help contribute to deliver some of the most saturated colors. When it comes to G20/G25 video processing, all expert reviews we came across agree that this is very good and clean, capable of correctly de-interlacing both 1080i- and 480i- video-based and film-based content; the latter however requires manually activating the 2:3 pulldown processing.As with the 2009 G10 HDTVs, the G20/G25 HDTVs come with a 24p direct-in with the option to set the refresh rate to 48Hz as opposed to the standard 60Hz to better match the cadence of film. However, as already expressed earlier on in this Panasonic plasma TV review, the 48Hz setting produces too much flicker, mostly noticeable in bright areas of the image, to be of any use.Both customers and professional reviewers agree that handling of standard definition material from a DVD source is not among the best things these Panasonic plasma TVs can do. This is an area where these HDTVs are among the worst performers. They do not resolve every line of the DVD format - leading to a somewhat softer-looking picture, and with a lot of jaggies along the edges of diagonal lines. Equally important, noise reduction with low quality shots is also one of the less effective among similar HDTV.Handling of PC content via one of the set HDMI inputs is very good - delivering the full 1920 x 1080 pixels without any overscan. Instead, when using the set VGA PC input, the supported maximum resolution is limited to 1366 x 768 pixels as against the full 1080p resolution supported via HDMI inputs - leading to a relatively soft looking image. Motion resolution performance is superb - delivering the full 1080 lines supported by the HD standard when activating the blur reduction feature. With the bur reduction off, Cnet measured between 700 and 800 lines - which is still exceptional. Yet as we have noted elsewhere on our site, this level of motion resolution can only be detected through the use of appropriate test patterns; you would not be able to enjoy the benefits of this higher motion resolution. This is basically the same as with the 240Hz and now the 480Hz refresh rate LCDs; you would not be able to enjoy the benefits of improved motion resolution resulting from this higher refresh rate over the typical 600 lines supported by 120Hz LCD TVs with actual program content.The new Infinite Black panel on these Panasonic plasma TVs with its single layer top glass panel and the embedded anti-reflective coating is one of the most effective screens when it comes to minimizing reflections off the screen surface and preserving the level of black under bright room conditions; in this respect, the new anti-reflective coating performs significantly better than that on 2009 Panasonic plasma TVs.2010 Panasonic plasma TVs deliver brighter images at significantly lower power consumption. Cnet reported that average power consumption for the 50-inch TC-P50G25 Panasonic plasma HDTV is 216W once properly calibrated for a 40 ftl output, falling to 155W in default standard mode. However, the latter yields a too dim a picture to be of any use for normal TV viewing. These figures imply a reduced 'power consumption gap' between plasma and LCDs and an improvement of more than 25% over 2009 for the same brightness levels. This renders the G20/G25 Panasonic plasma TVs among the most energy efficient 1080p plasma TVs for 2010. They are also more efficient than 720p plasma HDTVs from 2009. The latter is a significant improvement as unlike LCDs/LED TVs, power consumption in plasma TVs increase with an increase in screen resolution since each pixel in plasma TVs is in effect a light source.LCDs and in particular LED TVs still remain more energy efficient - in particular, the latest more expensive LED LCD TVs can do a much better job here. In fact, most of the latest LED TVs use typically half the power required by the latest plasma TVs. In other words, despite the much touting by plasma TV makers about their new eco-friendly energy efficient display panels, LCD and LED TVs still have the upper hand here.Superior deep blacks, excellent picture uniformity, good shadow detail and excellent color accuracy characterize the G20/G25 picture. The slight inaccuracy in the measured gamma is unnoticeable to the human eye, while the reported fluctuation in the black levels is an issue which would be hard to experience with normal program material. Rather, more annoying is that these TVs would not be able to deliver the correct cadence of 24p material.But then these are the HDTVs that come with one of the best THX picture modes. The THX mode is possibly the best asset that comes with these Panasonic plasma HDTVs. It is definitely the best and most accurate out-of-the-box picture setting - one that make it possible for anyone to get the very best picture performance at practically the touch of a button. Panasonic has surely raised the bar here for other TV makers, delivering one of the best THX picture modes ever.A few users complained of a buzzing noise with these Panasonic plasma TVs, a faint buzzing noise that would become louder as the average picture brightness increases. The Cnet reviewer noted that this is very faint and audible only during silent passages from a relatively too close a viewing distance.A very soft buzzing noise is typical of all plasmas and is mainly caused by the electrical charges used to create the images on the screen. As correctly noted by Cnet, the level of buzzing is generally quite low and audible only from a too close a viewing distance mainly during nighttime, and with the sound level practically turned off.One needs to be aware here that there are many factors that may influence this noise phenomenon. Changing the picture mode to one using lower power such will reduce the buzzing level when present since this affects how much power the panel is processing. This also explains why the perceived buzzing changes with picture content. Equally important is the panel installation; a hard wall surface directly behind a wall mounted plasma TV will reflect more of the buzzing noise than a wall covered with soft furnishing.
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Saturday, October 2, 2010

Sep 24, LCD Panel Technology: New Advancements in LCD HDTVs

LCD panel technology is without doubt the fastest growing video display technology in the field of television and home entertainment.This is not to say that technological advancements are not taking place in other flat-panel display technologies - in particular plasma, which in itself is the real major flat-panel competitor to LCD.But in contrast, major developments in plasma displays have been moving at a slower pace and are taking place mainly to consolidate present-day technology.In other words, the real technological break-through in flat-panel displays is taking place in the area of liquid crystal displays.LCD panels today employ several variations of liquid crystal technology, including super twisted nematics (STN), dual scan twisted nematics (DSTN), ferroelectric liquid crystal (FLC) and surface stabilized ferroelectric liquid crystal (SSFLC).Use of special plastics instead of the glass substrates, and flexible backplanes for flexible displays for use in specialized applications, has also become a reality.The truth is that development in LCD flat-panel technology is coming from all fronts and from all major LCD panel manufactures. This is leading to larger displays panels, improved response times, higher resolution, faster refresh rates, better color freedom, and equally important to the end-customer, cheaper LCD TV sets.Price and Display Size are both limited by the quality-control problems faced by display manufacturers. Increasing the display size implies adding more pixels and therefore more transistors - thus increasing the chance of including a few bad transistors in a display. This in turn will further increase the rejection level.However, larger and cheaper is the way LCD HDTVs are heading. The latest developments in the manufacturing processes of LCD mean that price is practically no longer an issue when choosing between plasma and LCD display technology for anything up to 52-inch. We have already seen 52-inch LCD HDTVs selling at a similar price tag to that of corresponding plasma televisions. And at 55-inch, the price difference is just marginal and more a result of the supported feature set rather than the display technology itself.This is all thanks to the efforts invested during these last years by LCD panel manufactures in developing next-generation LCD production techniques aimed at improving yield at the larger 50 to 55-inch LCD panel size. Up to very recent, this TV screen size segment was considered the domain of plasma displays. This panel size is becoming the real favorite TV size in today's multi-billion dollar home entertainment market. However, 55-inch is the real maximum you can get with LCDs today in that at larger screen sizes you do not have much choice - and this apart from the fact that prices start to shoot upwards. Mind you, 65-inch models are readily available; a case in point is the interesting 65-inch Samsung UN65C6500. This is selling online at $4,000 - almost $1,000 less than 2009 prices!At these massive screen sizes, plasma offers more choice at a cheaper price tag.Advancement in backlight technology aimed mainly at improved picture quality, improved motion resolution, and improved energy efficiency of LCD panel displays is another area where we are seeing a lot of investment, with different manufacturers proposing different backlight solutions.
Main developments include:
Philips originally employed the use of intelligence in the control of the multiple high output fluorescent lamps operated in a scanning mode on some of their high-end LCD displays. This scanning principle is now being used by other TV makers like LG, Vizio, and Toshiba to generate blank frames in their 240Hz refresh rate dejudder processing. This helps cancel out the sample-and-hold effect, which is characteristic of conventional LCD technology. The end result is improved motion sharpness.Similarly, actively controlling the backlight brightness level in synchronization with the picture content helps improve gray scale performance and deeper black levels.Samsung is making use of a flat fluorescent lamp (FFL)  instead of the standard cold cathode fluorescent tubular lights to power some of its flat-panel CCFL LCD HDTVs. The main advantage is that FFLs have a paper-thin form factor that produces light from its entire surface, offering the potential for greater picture uniformity, better brightness, and a higher contrast ratio. Sharp is also utilizing improved CCFL technology in their LCD panels - and enhanced color filtering at the sub-pixel level with the latest being Sharp Quattron technology whereby a fourth color - yellow - is being added to the conventional red, green, and blue. This has substantially increased the color gamut of respective Sharp LCDs - thus increasing the maximum number of colors to be displayed by these HDTVs.Surely, the most awaited devolvement in backlight technology has been the use of light emitting diodes or LEDs as a backlight source in LCD panels. LED backlights in LCDs offer a significant advantage over conventional CCFL lighting systems; individual groups of LEDs can be dimmed or switched off in synchronization with the average brightness level of the content being displayed on the screen. This leads to what is often being referred to by TV makers as mega dynamic contrast ratio levels.LG, Samsung, and Sony were the first LCD TV makers to come up with mass-market attempts at using LED backlit technology for their LCD HDTVs. In particular, both Samsung and Sony did leave their mark when late in 2008, both released the first LED TVs using local dimming LED backlights. These LED LCD TV sets did prove to be capable of superior black levels that are unsurpassed by a CCFL-based LCD - to the point that when displaying dark content in a completely darkened room, these sets literally disappear in the background.As expected, new technology does not come cheap. The latest LG LED TV with local dimming, the 55-inch 55LE8500 is selling online at under $2,500. Even more expensive is Samsung's latest flagship, the 55-inch UN55B8500 with full array local dimming LED technology which is presently selling online at $5,000.We say latest even though this was released almost a year ago. But for 2010, Samsung did not come up with full array local dimming but instead opted for what Samsung is calling 'Precision dimming technology on its high-end C8000-series and C6800 LED TVs. Despite its name, precision dimming is not superior to full array withy local dimming but it is definitely better than standard edge-lit LED backlight technology, this in view that it introduces the ability to dim selected areas on the screen for improved black level performance to these edge-lit LED TVs.
This is possible thanks to:[1] An LED edge lighting that is divided into different segments which can be dimmed independent of each other and in line with the brightness level of the picture content within the respective screen segments they control, and [2] The use of a special diffusion layer behind the LCD panel that directs light from the respective edge LED sections to selected segments on the screen surface.
Samsung does not divulge how many unique screen segments the new technology can address but there is no doubt the new Samsung edge-lit LED backlight with precision dimming technology results in improved picture performance over standard edge-LED lighting.Hundreds of LEDs are placed behind the screen to replace the standard CCFL backlight used in LCD panels. Individual groups of LEDs are dimmed or switched off depending on the image content. It is this 'local dimming' technology that is behind the mega contrast ratio claims by the respective display manufacturers for their LED LCD HDTVs.LED backlight as used in Samsung and LG LCD HDTVsSony Triluminos LED backlight technology using red, green, and blue LEDsInteresting is that while all three LCD display manufacturers are using LED backlighting in their LCD HDTVs, yet there is significant difference in the way Sony employed this technology with respect to the other two manufactures when the first LED TVs appear in 2008. Samsung and LG make use of white light LEDs. Instead, on the extremely successful XBR8 series released in 2008, Sony used a three color led-based system using multiple LED units. Termed 'Sony Triluminos', each LED unit consists of two green LEDs, one red, and one blue. According to Sony, this produces a wider color gamut with improved color purity. It is not clear if Sony is still making use of this same technology in its latest 2010 HX909 series LED TVs - which is the only Sony LED TV series using full LED array with local dimming for 2010.LED backlighting enjoys a number of advantages over LCD panels using cold-cathode fluorescent lamps (CCFL), with the most significant being:
Blue bullet
improved picture performance that is similar to CRTs with extremely deep blacks and impressive dynamic contrast ratings;
Blue bullet
Blue bullet
longer life that is typical twice that of CCFL based models;
Blue bullet
in the case of LED backlights such as the Sony Triluminos using separate red, green, and blue LEDs, it is possible to get improved color rendering that is more true to life. Using separate color LED light sources to produce the three different primary colors gives a finer control over the exact light frequencies required to produce the three primary colors.Nothing is perfect! The way local dimming LED backlight LCD panel technology is presently being implemented by major TV display manufactures means that the 1000 or so individual LEDs used in these backlight systems are far from enough to correspond to the individual pixels forming the image. This means that local dimming LED light technology - no matter how selective it is - can never correspond to the exact requirements of the individual pixels forming the image. In other words, local dimming, while responsible for the extreme black levels of LED LCD TVs, yet it also produces a sort of a subtle halo effect instead of pure blackness in dark areas adjacent to bright parts of an image. This is due to light spilling over from light to adjacent dark areas in the image. Some refer to this as 'blooming' as a result of the way dark pixels at the edges of a dark object adjacent to bright objects appear brightened as well.Another issue that appears to be common among all LED LCD HDTVs and that emerged in all LED LCD HDTV reviews we encountered so far, is that their picture deteriorates at a much faster rate with off-angle viewing than in the case of LCD panels using standard backlight systems. The deterioration is such that even moving just a single seat on either side of the optimum center viewing position leads to washed-out colors and a worsening of the halo effect already referred to above.The majority of LED TVs released during 2010 use LED edge-lit  LCD panel technology - a less complex derivative of LED lighting technology than local dimming. Simplistically speaking, these inch-thick edge-lit LED TV sets are nothing more than standard LCD TVs with LED (light emitting diodes) as their light source instead of CCFL. It has its pros as well - in particular with respect to their inch-thick profile and ultra-low power consumption. But edge-lit LED TVs - including Samsung's latest precision dimming - can never deliver the same level of picture quality as full array LED local dimming technology. Screen brightness uniformity and side viewing discoloring due to a restricted viewing angle are the main culprits here. leading to a performance that falls short of their high price.Directly related with tri-color LED backlighting, is 'color sequential'. Color sequential is becoming popular as a method of eliminating the color filters in LCDs. In 30 to 40 inch LCD panels, the color filter accounts for some 25% of the total cost of the LCD display panel. Thus, eliminating the color filters represents a significant way of reducing costs and simplifying the production process.Color sequential requires that a backlight emits red, green and blue light in sequence with one color at a time as required by the display content.  This is somewhat similar to the color wheel process used in DLP-based projection systems (more info on the use of the color wheel in projection TV based systems is available in our Projection Television: How-it-Works guide).The LCD controller in a color sequential system is synchronized with the backlight so that when a given color backlight is on, only the matching color sub-pixels in the LCD are turned on.  This would result in improved color gamut that is close to 100% of the NTSC gamut; this contrasts with the typical less than 80% of NTSC gamut achievable through the use of standard tubular CCFL backlight LCD displays. The end result is color that is much richer and more realistic.Eliminating the color filters in LCD panels has a further advantage. Red, green, and blue color filters used on sub-pixels absorb up to some 70% of light output from the backlight - thus eliminating the color filters implies that it is possible to use a lower brightness light source to achieve the same display brightness level. The end result is a significant reduction in power consumption.Yet, there is more in favor of color sequential backlighting. The use of color sequential technology eliminates the need for color sub-pixels; instead, the LCD panel can be redesigned so that it has three times as many regular pixels. In effect, each sub-pixel will become a pixel, which means that the resolution can be increased by a factor of 3.The LCD controller is still synchronized with the backlight; when a given color backlight is on, each pixel is set to the correct value for that color in the image. The eyes will see a rapidly changing sequence of red-green-blue images - (again, similar to a single chip DLP projection set-up); the brain will then combines these red, green, and blue monochrome images into a full-color image.It is interesting to note that this increase in LCD panel display resolution is achieved without increasing the risk of a higher level of bad pixels from that resulting from present display technology. This is possible since the increase in display resolution is being achieved not through an increase in the number of transistors on the display surface, but rather through re-design of the sub-pixel elements for these to operate as main pixels.Toshiba was the original display manufacturer that worked on Optically Compensated Bend (OCB) liquid crystals, with work mainly directed towards the development of small LCD panels for automotive applications.Up to very recent, a typical problem associated with standard LCD panels was the deterioration of the image as one moves away from the supported field of view. A lot of improvement has been going on in this direction. Most of today's LCD TV set support 170 degrees both horizontally and vertically. There are various ways that can help support a wider angle of view - Optically Compensated Bend is one of them.One side-benefit of OCB is that it makes the LCD inherently faster. Original tests by Toshiba had indicated a 3.3msec response time on their prototypes; this was at a time when the best LCD displays measured a typical 8 msec response time. Another interesting side-benefit of OCB is that it makes the LCD work much better in cold temperatures (-20C).The inherently faster response of OCB LCD panels makes these the ideal candidate for use with color field sequential technology. If color sequential is used to increase the resolution of the LCD, then a faster-responding LCD is needed because each pixel on the LCD panel is changing three times as often to display a rapid sequence of red, green, and blue images on the screen.If you are in the market for an LCD HDTV, we advise to visit the amazon storefront; the vast choice of products and the various buying options available from the different retailers are among the best online.  However, prior to any decision, we recommend to do some research of your own. Look at what other customers had to say about their LCD following their purchase. This will give you extensive insight about the product of interest; a good starting point is the customer feedback posted on the amazon site.  You can search the amazon storefront for LCD HDTVs without leaving our site by using the amazon search box below; your search results will appear here under.
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