Seiko Epson Rolls Reflective High-temperature Polysilicon TFT LCD panel

Aug 31, 2010 19:23 Shinya Saeki, Nikkei Electronics

Seiko Epson Corp developed a reflective high-temperature polysilicon TFT LCD panel and started its commercial production.

The LCD panel, which is targeted at the display elements of projectors, has a screen size of 0.74 inches and a pixel count of 1,920 x 1,080 (full HD). Seiko Epson has been mass-producing transmissive high-temperature polysilicon TFT LCD panels and has already shipped 60 million units. This time, the company started the volume production of a reflective high-temperature polysilicon TFT LCD panel for the first time in the world, it said.

The panel was developed by replacing the transparent electrodes of a high-temperature polysilicon TFT LCD panel with reflecting electrodes. Seiko Epson controlled scattering of light by improving the "C²Fine" technology, which uses inorganic alignment layers and the VA (vertically aligned) method, for reflective LCD panels and planarizing the reflecting electrode layer with its own technology. As a result, it realized a contrast ratio of 100,000:1 or higher.

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