Mitsubishi Denki Kabushiki Kaisha

Naoki Shiramatsu

Masaaki Nakano

Hajime Nakajima

Shuji Iwata

Syuji Iwata

Kunihumi Nakanishi

Projection type display device

A large-size screen display apparatus, having a plurality of projection display devices arrayed in a matrix arrangement to form one large screen, is for displaying characters and the like. A screen of each projection display device consists of a transparent plate disposed on the light entrance side and a diffusing surface disposed on the viewing side. Further, and the periphery of the transparent plate is mounted to a housing of the display apparatus. Light rays emanated from a projection lens are reflected by the transparent plate, whereby an optical image is formed on the entire diffusing screen. Since the optical image is displayed on the entire surface of the diffusing screen, no non-display areas will appear on the screen even when the plurality of projection display device are arranged in the matrix array.

Growing community of inventors

Amagasaki, Japan

Naoki Shiramatsu