High-Definition LCD Panel for GPS Phones

Seiko Epson Corp. displayed its new high-definition color LCD panel for GPS-enabled mobile phones at the EDEX 2002 Electronic Display Exhibition held at the Tokyo Big Sight.

This panel features 200 pixels per inch (ppi), according to Seiko Epson.

Most of the high-definition LCD panels of around 200ppi are low-temperature polycrystalline silicon TFT types. However, Seiko Epson built the new panel by adopting a low power-consumption and low-cost TFD method.

Such 200ppi-class, high-definition LCD panels, which can show a more extensive map more clearly, will be needed for mobile phones with GPS capabilities. Seiko Epson has met such a need by enhancing its TFD-LCD panels’ definition from 150ppi to 200ppi. According to the company, it has succeeded in realizing such enhancement through the development of a new driver LSI chip and the review of the panels’ processes.

The new panel is a semi transmission-type. Its screen diagonal size is 2 inches, the number of its pixels 240 x 320 dots, the number of its displaying colors up to 260,000 colors, and its contrast at transmission is 60:1.

Seiko Epson aims to begin volume production in the first half of 2003.


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