Sanyo Epson Applies Photo Technology to LCDs
Oct 17, 2005
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Sanyo Epson Imaging Devices (Sanyo Epson) announced three new high-resolution LCDs with more than 100 percent coverage of the NTSC (National Television System Committee) color gamut. The new displays (measuring 2.2, 2.8, and 4.5 inches) reportedly offer higher aperture ratios and lower power consumption. The LCDs are to be mainly used in high-end mobile phones and digital still cameras (DSCs).

The LCDs feature a widened color gamut technology called "Photo Fine Chromarich" that the company claims enables superior resolution and an extended color range by matching four color filters (CFs) with a new white backlight. Mass production of the products will commence in early 2006.

In developing widened color gamut technology, Sanyo Epson applied the technology for producing quality inkjet photo printers to LCDs. The technology enables colors like emerald green and blue to be reproduced with a level of accuracy not previously possible in small-to-medium-size LCDs (screens currently on mobile phones cover only about 40-70 percent of the NTSC color gamut, with an average of about 50 percent).

The new displays have specifications that are compatible with previous products, facilitating the development tasks of the product planners and designers at mobile equipment manufacturers. The driver IC contains the gamut-expanding algorithm in compressed form, so there is no need to increase the main memory of products. And as the input data is still in RGB format, old displays can simply be replaced with the new models. In the future, moreover, by equipping the displays with a high-speed serial interface, the mounted connection width can be narrowed by reducing the number of hard wiring, contributing to improved functionality and reductions in the size and weight of mobile devices. (DigiTimes)

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