Samsung Develops World's Largest (32'') LCD Panel Without a Color Filter

Samsung Electronics announced development of the largest thin-film transistor liquid crystal display (TFT LCD) panel that does not require the use of a color filter. The new filter-less 32-inch TFT-LCD for TV applications will be unveiled at FPD (Flat Panel Display) International 2005, which opens in Yokohama, Japan on October 19.

Samsung’s new LCD panel employs a sequential color processing method that rapidly determines accurate color tones based on how long red, green and blue lights are emitted from the LED backlight. Pixels are not spatially arranged throughout the LCD, eliminating the need for a color filter. Conventional LCDs require both a cold cathode fluorescent (CCFL) backlight and a color filter to separate the white light emitted by the backlight into red, green and blue (RGB) sub-pixels.

Seongsik Shin, vice president of the Samsung Electronics LCD R&D Center said, “With the independent development of the color filter-less LCD, Samsung is able to produce the highest quality LCD panels at a lower cost. This further improves our market leadership position for high-definition LCD TVs of 32”, 40” and 46” industry-standard screen sizes.” He added, “The new technology will reduce the investment cost for new facilities, shorten production process times and increase production yields, boosting Samsung’s performance and cost competitiveness in the LCD TV market.”

To achieve the “sequential” display, Samsung Electronics’ LCD R&D team used a novel RGB-emitting LED backlight. By combining the RGB light emissions from the backlight in precise sequences, the new LCD panel provides color saturation that is 110% of the NTSC standard, while the aperture ratio is an exceptionally high 78% for television with brightness at 500nit.

Moreover, the new display panel consumes only 82 watts, just 60% of the power needed by a conventional 500nit CCFL backlight. In addition, its response time is 5ms or faster, making it ideally suited for multimedia and video applications where accurate color reproduction is required.

Samsung developed its first LED backlight unit (BLU) in 2004 and completed low-power 40” and 46” versions using this BLU the same year. The breakthrough development of a 32” LCD without color filter reasserts the company’s leadership in the LCD industry.

Mass production of 32-inch panels without color filters is scheduled to begin in the second half of 2006.

Source: Samsung

Related stories:

Sharp Adds the D65U and D85U Series to Their AQUOS Line
Sharp, a worldwide leader in flat panel LCD's, expands their widescreen, full HD 1080p line of AQUOS LCD TVs with the attractive D65U and D85U series. Both the D65U and D85U feature a slim design and breathtaking realistic picture quality. This line of AQUOS LCD TV's provides the ultimate home entertainment experience.
Engineers make first 'active matrix' display using nanowires
Engineers have created the first "active matrix" display using a new class of transparent transistors and circuits, a step toward realizing applications such as e-paper, flexible color monitors and "heads-up" displays in car windshields.
Sony Debuts First OLED TV in the US
Sony today announced the availability of the industry’s first Organic Light Emitting Diode (OLED) television in the United States.
SID 2007: Samsung Shows 70" 120 Hz Full-HD LCD, Flexible Color E-paper Display and 40" LED-backlit 'Display of Year'
Samsung Electronics is exhibiting two of its leading display products, as well as a few highly promising concept prototypes at the 45th annual Society for Display (SID) 2007 exhibition (Long Beach, CA, May 22-24).
Samsung Brings Brighter Images to Mobile Devices in Broad Daylight
Samsung Electronics announced today the development of an intelligent mobile display driver IC (DDI), which enables the displays on handheld devices to deliver clearer images in broad daylight.
LCDs get brighter with nano polarization recycler
LCDs (liquid crystal displays) provide a popular method for lighting screens on everything from computers and TVs to watches, clocks, cell phones and more. However, as scientists Sang Hoon Kim, Joo-Do Park and Ki-Dong Lee from Korea report, the light efficiency of LCDs is below 10%. Realizing there’s room for improvement, the team developed a way to brighten LCDs by recapturing much of the lost light using a technique called polarization recycling.
Sony Develops World's First LCD TV Compliant With 'xvYCC' HR Signal Processing
Sony Corporation announced the development of an LCD TV with the world's first color range “xvYCC” compliant high resolution signal processing system, which enables a wider color reproduction capability of TVs. This technology will be developed in conjunction with an 82 inch LCD TV, being one of the largest in the world, and its prototype will be unveiled for the first time at the 2006 International CES in Las Vegas, USA.
Sanyo Epson Develops High-Resolution LCDs
Sanyo Epson has announced the development of three new high-resolution LCDs featuring "Photo Fine Chromarich" technology that achieves more than 100% coverage of the NTSC color gamut. Mass production of the displays will commence in early 2006.

News discussion:

Electronic Devices news