Hitachi, Ltd.

Makoto Kamiya

Masanori Ogino

Yoshiaki Iwahara

Shuichi Sakamoto

Shoji Kuroda

Takashi Itoh

A rear projection type display system with a transmissive screen. A transparent reinforcing plate is coupled to a lenticular sheet of the screen on the light output side by a connective member to broaden the horizontal diverging angle by 60 degrees or more to the right and left sides. The duty factor of a black stripe formed on the lenticular sheet is set to 60% or more so improve the contrast of an image. The diverging angle at each point of a vertically-diffusing lens for diverging light in the vertical direction is modulated in accordance with the height of each point to offer a proper visual angle range in the vertical direction.

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Yokohama, Japan

Makoto Kamiya