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Epson TFT liquid crystal panel
Ralf Jurrien : August 29th 2007 - 19:06 CET
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EpsonEpson high temperature TFT liquid crystal panel : Epson has developed a new type of high-temperature polysilicon TFT liquid crystal (HTPS) panel that will further enhance the performance of 3LCD-type front projectors. The company has already begun volume production of these 0.7-inch (1.9 cm diagonal) HTPS panels which utilize C2Fine technology. The resolution and image quality of visual image sources have been greatly improved due to the proliferation of high definition broadcasting. This has generated growing demand for products that offer users a simple and easy way to enjoy high quality digital contents on a large screen at home. Epson began producing full high definition C2Fine panels for home projectors last year.
Epson TFT liquid crystal panelTFT liquid crystal panel
The new panels, which conform to newly developed design rules, use a technology which boosts aperture ratios by 20% compared with the previous model. By enhancing aperture ratios, this technology improves luminance while using the same lamp as previous models. It also enables the use of a lower-watt lamp to achieve the same levels of luminance. Thus the technology makes it possible to manufacture brighter, more environmentally friendly projectors that offer outstanding value for money. The new panels also use 12-bit LCD drivers which boost accuracy in reproducing subtle differences in color and gradation.

High temperature TFT liquid crystal panel
The previous model’s 10-bit driver was capable of controlling 1.1 billion colors, but the new 12-bit driver is capable of controlling 64 times that amount at 68.7 billion colors. The new panels also quadruple gradation approximation from 1,024 gradation levels to 4,096 gradation levels. As a result, the new panels offer high quality images that are ideal for wide-screen, high-definition products. In addition, various improvements have been made to make installation easier for product manufacturers, such as boosting noise immunity by utilizing mini-LVDS interface and strengthening panel tape (FPC).

3LCD
3LCD (Three-Panel Liquid Crystal Display Technology) is a projection system, based on 3 individual LCDpanels. In 3LCD, HTPS-based LCD-panels are the core of data- and video-projectors. 3LCD-technology offers a whole range of advantages: To start with, brilliant images - 3LCD projectors realize even with relatively low wattage lamps, bright, lifelike pictures. The lower lamp wattage needed to achieve bright images result in less heat (thus less cooling needed) and lower operating costs. 2nd, natural images - 3LCD-panels offer a wide color range and project bright and natural primary colors. The outstanding grayscale reproduction even in dark scenes results in a very natural display of color tones. 3rd, easy on the eyes - Since color images are generated using 3 individual HTPS-LCD-panels, the produced images are easy on the eyes. The images show no signs of color break-up effect often referred to as "rainbow effect".

Epson
Epson is a global leader in imaging products including printers, 3LCD projectors and small- and mediumsized LCDs. With an innovative and creative culture, Epson is dedicated to exceeding the vision and expectations of customers worldwide with products known for their superior quality, functionality, compactness and energy efficiency. Epson is a network of 90,701 employees in 120 companies around the world, and is proud of its ongoing contributions to the global environment and to the communities in which it is located. Led by the Japanbased Seiko Epson Corp., the Group had consolidated sales of 1549.5 billion yen in fiscal 2005.

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