RSS
 

Posts Tagged ‘TV Industry’

LG Display Announces World’s Largest OLED TV Panel Measuring 55 Inches

10 Jan

LG Display [NYSE: LPL, KRX: 034220], a leading innovator of thin-film transistor liquid crystal display (TFT-LCD) technology, today announced that it has developed the world’s largest 55-inch OLED(Organic Light Emitting Diodes) TV panel. The 55-inch panel is a significant step forward in the popularization of OLED TVs and demonstrates the effective application of AM OLED technology to larger panel sizes at a more cost efficient level.

“Our objective has always been to actively define and lead emerging display technology markets,” said Dr. Sang Beom Han, CEO and Executive Vice President of LG Display. “Although OLED technology is seen as the future of TV display, the technology has been limited to smaller display sizes and by high costs, until now. LG Display’s 55-inch OLED TV panel has overcome these barriers.”

Superior Image Quality in an Ultra Thin Design

LG Display’s 55 inch OLED TV panel produces remarkable image quality with no after image due to its high reaction velocity, as well as high contrast ratio of over 100,000:1 and wider color gamut than that produced by LCD panels.

OLED, a medium that controls pixels is a departure from LCD panels which utilize liquid crystals. The new technology allows light emitting diodes to self-generate light and features a reaction velocity to electric signals over 1000 times faster than liquid crystal.

The environmentally conscious will also appreciate LG Display’s 55 inch OLED TV panel. While light sources in backlight units, like LCD panels, must always be kept on, the OLED panel allows diodes to be turned on or off which enables lower power consumption than conventional LCD panels.

With no need for a special light source, LG Display’s 55 inch OLED TV panel is also able to utilize a simplified structure thinner than that of a pen (5mm), and lighter than LCD panels. The panel’s minimalist structure also allows for the realization of unique design elements.

Advancing the Popularization of OLED TVs

Although industry watchers anticipate OLED as the future of TV display, to date, the technology has faced challenges due to limitations on the sizes of displays it can be applied to and a high level of investment required. LG Display has successfully addressed these issues with its 55 inch OLED TV panel.

The panel adopts an Oxide TFT technology for backplane which is different from a Low Temperature Poly Silicon (LTPS) type generally used in existing small-sized OLED panels. The Oxide TFT type that LG Display utilizes is similar to the existing TFT process, with the simple difference lying in replacing Amorphous Silicon with Oxide. Moreover, the Oxide TFT type produces identical image quality to high performance of LTPS base panels at significantly reduced investment levels.

Additionally, LG Display uses White OLED (WOLED). WOLED vertically accumulates red, green, and blue diodes. With white color light emitting from the diode, it displays screen information through color layers below the TFT base panel, which leads to a lower error rate, higher productivity, and a clearer Ultra Definition screen via the benefits of small pixels. Further, it is possible to realize identical colors in diverse angles via color information displayed through a thin layer. Lower electricity consumption in web browsing environments for smart TVs is another key strength of WOLED.

Showing at CES 2012

The world’s first 55 inch OLED TV panel from LG Display will be made available for showing to select media and customers at a private booth starting on January 9 in Las Vegas through the end of CES 2012.

 
3 Comments

Posted in OLED

 

LEDs and OLEDs Power Innovative Large-scale Displays

29 Jun

Mitsubishi Electric utilizes OLEDs to build a 6m spherical display, while Panasonic has created the world’s largest HDTV using LEDs at Charlotte Motor Speedway.

The Geo-Cosmos display

Visitors to the National Museum of Emerging Science and Innovation in Tokyo, Japan can now enjoy a 6m-diameter globe display that Mitsubishi Electric built utilizing 10,362 organic light-emitting diode (OLED) panels. And US auto racing fans that visit Charlotte Motor Speedway in North Carolina will experience instant replays and leaderboard statistics on a high-definition (HD) video board that stands 200-ft wide and 80-ft tall that Panasonic constructed using 9 million LEDs.

The Mitsubishi Geo-Cosmos display hangs 18m above the floor in the Tokyo museum replacing an older globe that was lit by LEDs. Mitsubishi says that the display can project 10 million pixels – 10 times more than the older LED globe. The new display was commissioned to commemorate the 10th anniversary of the museum.

Mitsubishi, along with partners Dentsu, GK Tech, and Go and Partners, constructed the globe using individual Mitsubishi Diamond Vision OLED panels that measure 96×96 mm. The panels feature a 3-mm dot pitch for each RGB pixel. The panels are mounted on an aluminum skin that forms the sphere.

The museum will use the global display to project the earth and to present other symbiotic scenes. For example, the display can project scenes of clouds and earth images captured from a meteorological satellite.

Dale Earnhardt Jr debuts HD board

The NASCAR Sprint Cup All-Star race on May 21 served as the debut for the largest HD video board in the world. Panasonic constructed the 16,000-square-foot screen using 158 panels made with LEDs.

The display stands 110 ft above the race track centered along the backstretch of the course. It is capable of playing video with 720p resolution.

The speedway said that the new board uses “280 times more LED bulbs than the Times Square Ball” that is used to celebrate the arrival of the New Year annually in New York City. The speedway noted that the New York ball can be seen from 50 blocks away and expects fans seated along the entire front stretch to have a clear view of the HD board.

The speedway conducted an operational debut of the HD board with the help of Dale Earnhardt Jr – one of NASCAR’s biggest stars. Earnhardt demonstrated the HD capabilities playing a racing simulation video game displayed on the board.

“The Coca-Cola 600 [a May race at the track] is one of the best events we have all year long. Now fans can get a ticket to the race and have the experience of the live event with the comfort of their own TV at home with this big TV,” Earnhardt Jr. continued. “This place just keeps getting better.”

Indeed the speedway presented live action, video replays, race statistics, and interactive entertainment on the board. “This giant Panasonic HDTV will be a game changer for our fans on race day,” said Marcus Smith, president and general manager of the speedway. “It will give them a whole new way to experience a NASCAR event at Charlotte Motor Speedway.”

 

LED Backlight Versus Traditional LCD Backlight

12 Apr

Have you ever looked at the back of your LCD high definition television and wondered why there is a whole lot of light coming out of the ventilation slits?  Well, there’s a reason for it, and someday it might be a whole lot more colorful.

While there are fans of both LCD (Liquid Crystal Display) and plasma HD TVs, one thing the latter has over the former is that the technology does not require any form of backlighting.  An LCD screen does not actually emit any light of its own, so for it to show the images on the screen properly, it needs to be backlit from some type of lighting source.  Currently the most common form of lighting in these television sets is Cold-Cathode Fluorescent Lamps (CCFL) that are laid horizontally running up the height of the screen.  However, if you are willing to shell out the extra money, you could go with an LCD TV that is running LEDs (light-emitting diodes), which are more than likely the wave of the future.

samsung-ledIgnoring the extra cost of the LEDs, there are even more choices you have to make once you decide that you want to go this route.  From the outside the TVs look no different (that is a Samsung LED set to the right), but on the inside you have at least two decisions to make about if you want the LEDs to be edge-mounted or direct.

As the name “edge-mounted” implies, the lights run along the exterior frame of the screen which allows them to be mounted in extra thin sets.  The issues are that if the light is not properly distributed you can end up with some shadowed areas, and you also lose some contrast because they are always on.

Direct LEDs are mounted in strips behind the screen and can be turned off in the darker areas of an image so that you get much better contrast in your picture.

The other debate with LEDs is whether you should be using white or RGB (Red Green Blue).  White is similar to the current CCFL set up, but RGB offers you a broader spectrum of color.  This will probably be decided for you by the manufacturers, but still handy to know about it.

In short, if you want the best LCD, you probably want direct RGB lighting for your set, but you also need to expect to pay quite a bit more at this time for the technology.  Eventually the price will drop and we will probably see all LCDs go this route, but it may be another year or two before it becomes mainstream technology.

 

LG Taps LEDs in HDTVs to Improve Image Quality in Thinner Lower-power Designs

28 Sep

INFINIA, an innovative new family of LED LCD HDTVs from LG Electronics that delivers “freedom through infinite possibilities,” highlights the company’s 2010 lineup of LED LCD HDTVs introduced here today at the International Consumer Electronics Show (Booth #8205).

LG INFINIA HDTVs (the LE9500, LE8500 and LE7500 series) combine a slim design and thin bezel with enhanced connectivity and abundant content options. Leading the way to the ultimate home entertainment experience, the 55- and 47-inch class* LE9500 sets will be LG’s first 3D-ready models available in the United States.

INFINIA is the flagship of LG’s 41-model LED LCD HDTV line – six new series of LED LCD HDTVs and five new series of LCD HDTVs. Leading these introductions are two new LED technologies – Full LED Slim and LED Plus – that provide cutting-edge picture quality. The unique backlight structure on its Full LED Slim models (LE9500 and LE8500) allows for the INFINIA line’s ultra-slim depth without sacrificing picture quality. Together, these features provide consumers with infinite possibilities in home entertainment.

“We’re removing barriers to entertainment with very slim LED LCD TVs that couple wireless connectivity with the most access to online content,” said Peter Reiner, senior vice president, marketing, LG Electronics USA. “With seamless connectivity and limitless content, LG INFINIA is resetting the standards for design and entertainment as LED LCD TVs are expected to grow to more than 20 percent of the market this year.”

“Consumers will no longer have to compromise on picture quality in order to enjoy an ultra-slim design. Together this new Full LED Slim technology and our wireless connectivity options allow consumers to ‘live borderless’ with the ultimate in content access and convenient installation,” Reiner added.

LG’s new Full LED Slim technology elevates picture quality with a slim LED structure that supports detailed local dimming of up to 240 addressable segments (on the 55-inch class LE9500), resulting in an HDTV that provides the deeper black levels and uniform picture quality which typically could not be achieved on an ultra-thin set.

The LE9500 series cabinet depth is only .92 inches with a bezel width of only 8.5mm. LG’s LED Plus technology (available on the LE7500 and LE5500 series), also improves picture quality and energy efficiency by adding a basic local dimming capability of up to 16 addressable segments.

The LE9500, LE8500 and LE7500 were all recognized with CES 2010 Innovations Awards, including the “Best of Innovations” distinction in the Online Audio/Video Content category for the LE9500.

Shattering Expectations

Broadening consumer entertainment options, LG’s latest series of HDTVs affords consumers superior picture quality, advanced energy saving options and flexible access to content-on-demand. LG’s LED LCD HDTVs challenge consumers’ current perceptions of home entertainment by illustrating what’s possible with superior display technology.

LG’s Full LED Slim series (models LE9500 and LE8500) for example, join an elite group of LED LCD HDTVs that have achieved THX Display Certification – the industry standard for having the correct gamma, luminance, and color temperature. This certification demonstrates that select series of LG HDTVs can recreate the cinema experience at home, making the picture resemble movie theatre quality. To date, LG is the only manufacturer who has attained this designation for LCD TV in the U.S. market. LG is also the first manufacturer to include the “THX Bright Room” setting on its LED LCD HDTVs. This new feature to the THX certification program optimizes the contrast, gamma and other settings for watching movies in rooms with a lot of ambient light.

LG’s exclusive Full LED Slim technology includes detailed local dimming capability, but also enables the LE9500 and LE8500 to achieve a slim depth usually limited to conventional edge-lit models. This unique technology makes it possible for these two models to achieve the picture quality worthy of THX Display Certification and helps minimize the front bezel of the TV. This works with the single, edge-to-edge panel of glass to create a design, perfect for any home environment. Boasting a thin bezel of only 8.5mm, the LE9500 brings advanced technology into the home without being obtrusive. Available in 55-and 47-inch class sizes, this series also incorporates TruMotion 480Hz for reduced motion blur during fast moving action sequences.

Connectivity

LG’s full line of LED LCD HDTVs ― series LE9500, LE8500, LE7500, LE5500 and LE5400 (in screen sizes 32-inch class and above) ― boast a connectivity package with a variety of entertainment options, including NetCast Entertainment Access. With NetCast, consumers can access the following content sites for an almost endless array of entertainment options:

Skype: Newly added in 2010, this allows consumers to make free video and voice calls over the Internet to family members and friends (separate camera and other equipment needed).
Netflix: Updated with Netflix 2.0, consumers can stream thousands of movies without a PC.
VUDU: Allows consumers to instantly buy or rent from an extensive library of movies and TV titles, including a catalog of more than 3,000 high-definition movies – with no monthly fees or additional hardware.
YouTube: Offers the ability to instantly stream millions of Web videos directly from the Internet (without a personal computer).
Napster: Now Napster subscribers can enjoy unlimited on-demand streaming music from millions of songs on their NetCast TV.
Yahoo! Widgets: Enables access to various applications called TV Widgets that allow viewers to interact with popular Internet services and online media through applications specifically tailored to the needs of the watcher, such as up-to-the minute Yahoo! News, Weather and Finance, and new widgets, including CBS, Showtime and CNBC.
LG also has incorporated the Digital Living Network Alliance (DLNA) technology across the full line of LED models. DLNA allows consumers to access content stored on other DLNA-certified devices within the home, such as computers, making content options almost limitless.

Providing easy options for connecting to the Internet, in addition to the wired Ethernet jack, all NetCast-enabled sets can integrate into a wireless home network by using a USB wireless broadband adaptor (sold separately). All models with NetCast also support multi-media playback from a connected USB device including photos (JPEG), music (MP3) and video (DivX HD).

For greater convenience and flexibility in setup and installation, all HDTV series with NetCast also offer wireless Full HD 1080p wireless transmission from a “Wireless Media Hub” from up to 98 feet. Connecting source components, such as Blu-ray players, cable or satellite boxes and video games to the media hub enables transmission to a compact receiver adaptor, which attaches to the back of the TV, hidden from view. This eliminates the need for individual components to be connected directly to the TV, making for a clean and easy installation and removal of the unsightly wires (Media Hub and receiver adaptor sold separately as a package).

Controls

LG’s LE9500 incorporates a unique “Magic Wand” remote system that provides an immersive interaction with the set. This “Magic” user interface brings together menus, component controls and even embedded games, which can be accessed using a simple remote that combines minimal buttons and gestures to control the on-screen activity, mirroring a “Wii-like” experience.

Energy Savings

Understanding consumers’ desire for products that reduce their household energy costs, most of LG’s LED and CCFL HDTVs have a variety of energy-saving features, such as Intelligent Sensor, to automatically calibrate and optimize brightness, contrast, white balance and color, based on the ambient light in the room, saving on energy output under most circumstances. Additionally, ISFccc calibration options allow consumers to work with a professional to set “day” and “night” levels for optimal viewing and brightness levels. All of LG’s 2010 LED LCD series also qualify for ENERGY STAR 4.0 certification.

 

LED TV – Technology with a Bright Future

31 Mar

How LED Works (The Technology behind Light Emitting Diodes)

led tvTelevision screens have come a long way from the standard box sets that first debuted in the 1920s. Since then, technological advancements have provided consumers with a variety of brighter, wider and clearer screen display choices— available in Light Emitting Diodes (LED), Liquid Crystal Display (LCD) and plasma. These screens differ in their longevity and color as well as their environmental effects. Plasmas, which have been the longest running product on the market, have been popular for resiliency and good contrast ratio, while LCDs have been well received for their energy efficiency. But the newest of the technology bunch, LED, is an improvement of LCDs; continual developments make these screens thinner, allowing for the greatest portability and a luminous look. Below is an explanation of LED technology and how it compares to other display types.

led-tv

led-tv

What are LED TVs?

Manufacturers describe LED TVs as an LCD set with a different backlighting system. LCDs use fluorescent lamps as backlighting, while LEDs are composed of light emitting diodes. In technological terms, LEDs radiate light when a current passes through its semiconductor diodes in a forward motion. This process involves electrons that are transmitted via a semi-conductor and are placed in various energy levels during transit. The electrons are illuminated after they reach a lower energy level, which produces television images. Experts say that the larger LED color displays use a three-LED pixel.

LED Look

Besides television, LED technology is also found in numerous applications, including traffic lights, digital clocks, watches, and microwave oven time displays. In TVs, LED screens are efficient because they are generally produced in very thin screen sizes, which is good for portability purposes. Advancements on the backlighting technology allow clear picture quality and low power consumption (in contrast to high-energy plasmas). LEDs can also be viewed from a wide angle, and backlighting produces a darker, black coloring. Companies claim that the lifespan of these televisions depends on the life of the backlighting, and can last over 100,000 hours. Because of their slim look and good color contrast, LEDs are generally most expensive of the screen options. LEDs are often used as computer monitors and are a popular screen choice for video game use.

LED vs. LCD and Plasma Compositions

Plasma screens were introduced to the market around the same time as LCDs (which arrived later). LCD screens are backlit with a fluorescent light, and operate by the same technology as a pocket calculator. Generally, LCDs are considered to be the least eco-friendly technology because mercury is involved in producing images. While traditional LCDs feature different styles of florescent lights, LED models have different backlighting styles.

Plasma television screens are usually thicker than LCD and LED sets. They work by using a gas that turns into plasma via an electronic current. The pictures produced on plasmas are usually highest quality (and are generally considered better than the two other mediums), and can be viewed from very wide angles, which is why these screens are a popular consumer choice. The drawback of plasmas (in comparison to LEDs) is that they are bulkier and use a high amount of energy consumption to light up, although they are generally cheaper. Plasmas are also prone to screen glare. Overall, plasmas are considered to have a better contrast picture than LEDs. Because these televisions use miniscule plasma cells that produce a picture with an electrical charge, they can deactivate the source of light off parts of the screen, according to manufacturers. This produces a high-quality contrast (darker blacks and brighter light colors).

Variations of LEDs

Manufacturers produce a few varieties of LEDs. These devices can be maneuvered to produce a dimming effect, which involves a LED light panel that may be controlled (individually or via banks) to improve the television contrast. LED edge lighting is another option, and this works by surrounding the edge of the panel with LED lights. Generally, the LED edge models are the slimmest screens available. The lights on these screens are equally distributed at the edges of the screen (or the panel) which allows for a very thin frame. The frame, in turn, is effective for applications such as portable touch screen devices.

One of the newest technologies, and perhaps the reason why LED screens are such distinguishable modern products, is the capability of Organic Light Emitting Diodes (OLED) technology. These devices are “emissive” as thin organic layers act as a source of light. An electro-luminescent light is produced from the organic carbon material used, creating a bright picture and the capability for an extremely thin screen, bright pictures and a low energy consumption.

Original:LED TV – Technology with a Bright Future

 
 
LED Blog