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Epson Launches Volume Production of World’s First Reflective HTPS Panels


New panels support full HD and provide contrast ratio of 100,000:1 or higher

TOKYO, Japan - Seiko Epson Corporation (“Epson”, TSE: 6724) today announced that it has developed and begun volume production of the world’s first*1 reflective high-temperature polysilicon (“reflective HTPS”) TFT liquid crystal panels for 3LCD projectors. The new panels, which measure 0.74 inches on the diagonal, support full high-definition (1920 x 1080 pixels) content.

The increasing availability of high-resolution, high-quality source images due to the growing popularity of HD media players and digital HD broadcasts are pushing demand for more convenient large-screen viewing options in the home. Higher contrast is in demand especially for movies, where the reproduction of natural-looking colors and deep blacks is critical.

The new liquid crystal panels fuse reflective display technology with the storehouse of HTPS technology Epson has accumulated in shipping more than 60 million panels for 3LCD projectors. They provide a device-level contrast ratio of 100,000:1 or higher*2 while taking full advantage of the ability of HTPS panels to reproduce bright, natural-looking images and deliver rich gradations.

Epson has long been the leading supplier of high-quality transmissive HTPS panels for 3LCD home projectors. Now, with the addition of reflective HTPS panels to its product lineup, Epson is enabling high-end 3LCD projectors that will satisfy even home theater enthusiasts who put a premium on contrast and image quality.

Cross-sectional views of transmissive HTPS and reflective HTPS panels

The new reflective HTPS panels are based on the proven, reliable structure used for transmissive HTPS panels. The main structural difference is that reflective panels have a reflective electrode instead of a transparent electrode on the TFT substrate. The C2 Fine*3 technology that enabled high contrast ratios in transmissive HTPS panels has been optimized for the reflective HTPS panels, and Epson’s unique planarization technology is used to make the reflective layer almost perfectly flat so as to control the scattering of light. The result is panels that offer a device-level contrast ratio of 100,000:1 or higher.

Epson has for many years continued to drive advances in HTPS panels and, in so doing, has kept the No. 1 share*4 of the market for these core projector devices. Going forward, Epson will combine its reflective technology with other unique technologies to provide products that meet a wide range of customer needs.

*1 As of August 20, 2010, according to Epson research
*2 The contrast ratio of the panels themselves. The contrast ratio of projectors in which they are used may differ depending on the projector manufacturer’s final specifications.
*3 An original Epson technology for achieving high-quality, vivid images with high contrast by combining an inorganic liquid crystal alignment layer with vertical alignment technology
*4 As of August 20, 2010, according to Epson research
Features of the new panels

1. World’s first reflective HTPS model
* Combine new reflective technology with conventional transmissive HTPS technology (see diagram)
2. Panel contrast ratio of 100,000:1 or higher
* Employ C2 Fine technology
* Planarization technology for TFT substrate (see diagram)

New panel specifications
Name L3R07U-81K00
Device Reflective HTPS
LCD type C2 Fine
(VA inorganic alignment layer)
Process technology D7
Effective pixels 1920 x 1080 (1080p)
Panel size (diagonal) 0.74" (1.87 cm)
Pixel pitch 8.5 um
Related information

To learn more about the advantages of HTPS panels, visit:

To learn more about 3LCD technology, visit:

About Epson
Epson is a global imaging and innovation leader that is dedicated to exceeding the vision of customers worldwide through its compact, energy-saving, high-precision technologies, with a product lineup ranging from printers and 3LCD projectors for business and the home, to electronic and crystal devices.
Led by the Japan-based Seiko Epson Corporation, the Epson Group comprises over 70,000 employees in 106 companies around the world, and is proud of its ongoing contributions to the global environment and the communities in which it operates.


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