51.3: Invited Paper: Optical System Architectures for Rear Projection Screen

Abstract

A description of Toppan's Rear Projection Screen (FC-Screen) used on image projection systems is presented. This screen is used mainly for rear projection-type TV. The fundamental structure of FC-Screen and the design optimization are described. A consequence of this concept is FC-Screen with enhanced S/N, higher gain, among other properties.

A super-fine-pitch screen for rear-projection TV

“…It is important to pattern 70% of the black-stripe ratio in the lens sheet selectively as described in a previous paper. 3…”

“…The conventional FC-Screens are composed of lenticular-lens sheet and have a 155-µm lens pitch. 3 We have been trying to meet the requirements of the market. We propose to improve not only the moiré issue by using a 98-µm lenticular-lens pitch, which we called a "Fine-pitch FC-Screen," but also the vertical viewing angle using a "Cross FC-Screen."…”

22.3: High‐Definition Projection Screen: Enhancing Technique of Contrast and Fineness

“…Recently, rear projection displays using liquid crystal display (LCD) or digital micromirror device (DMD) can provide the viewing screen with very high resolution images. Screens based on conventional double lenticular elements, however, have a problem that it is difficult to fabricate the pitches of the lenticular elements finely in order not to arise a moiré between the lenticular elements and the pixel of the projector [1][2][3]. Although screens based on holographic diffuser exhibit good image of high resolution, they have a limited range of viewing angle in ambient light [4,5].…”