Samsung Develops OLED Prototype May 19, 2005

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Samsung Electronics, a leader in TFT-LCD technology, announced that it has developed a single-sheet, 40-in active matrix (AM) organic light-emitting diode (OLED) for emissive flat panel TV applications.

The high-definition-compatible OLED prototype has a wide screen pixel format of 1280 by 800 (WXGA) driven by an amorphous silicon (a-Si) AM backplane to permit faster video response times with low power consumption.

Samsung's 40-in OLED panel will be demonstrated for the first time at the world's largest display industry event, Society for Information Display (SID) 2005 International Symposium, Seminar, and Exhibition held in Boston, MA, U.S. on May 24 to 27.

Manufactured on Samsung's fourth generation (4G) production line with a mother-glass size of 730 by 920 mm, the new OLED prototype combines all of the traditional features of emissive OLED technology, including wide viewing angle, thin package size, no color filter, and no backlight, with the enormous production infrastructure advantages of standard a-Si techniques. To date, AM OLED prototypes have used costly polysilicon approaches, which have limited production sizes.

The new prototype offers a maximum screen brightness of 600 nits; a black-and-white contrast ratio of 5,000:1; and a color gamut of 80 percent. Motion pictures with ultra-high quality images can be reproduced by employing OLED's rapid video response capabilities for image processing of HD-class resolution. The ultra-thin shape of the panels will allow future TV set designers to create televisions with a total thickness of only 3 cm or less.

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