Prodisc Technology Inc.

Yen-Chun Chou

Ta-Kun Kung

Nai-Yueh Liang

Wei-Chung Wang

Shu-Ching Chan

Chong-Han Tsai

A rear-projection screen comprises an optical unit, a light-blocking layer, and an optical lens. The optical unit has a first surface and a second surface. The first surface is opposite to the second surface. The first surface has a plurality of cylindrical convexes and the second surface has a plurality of irregular protruding parts. The light-blocking layer adjoins to the second surface and has a plurality of striped light-absorbing units. The optical lens is disposed adjacent to the optical unit.

Rear projection screen and optical device thereof

A light tunnel with a gradient filter layer includes a light tunnel body and a gradient filter layer. In this case, the gradient filter layer is disposed at a light emerging side. The transmission rate at the central area of the gradient filter layer is smaller than the transmission rate at the edge area of the gradient filter layer.

Growing community of inventors

Hsinchu, Taiwan

Yen-Chun Chou