Projection type image display device
Abstract
Abstract Translated from Japanese (57)【要約】 【目的】 液晶パネルをライトバルブとする投写型画像 表示ユニットによるマルチビジョン・システムにおい て、光源や、光学部品の特性ばらつき等から生じる画面 輝度のばらつき、ムラの課題を解決し、輝度ムラが小さ く、継目が目だちにくい、明るく非常に大きい画面の投 写型画像投写装置を提供することを目的とする。 【構成】 投写型画像表示ユニット7を複数台上下左右 に積み重ねて1つの大画面を構成し、各投写型画像表示 ユニット7のレンズ5にFナンバーや周辺光量を調整す る機構、たとえば可変絞り8を設けることにより、大画 面を構成したときに輝度ムラが小さく、継目が目だちに くい投写型画像表示装置が得られる。 (57) [Abstract] [Purpose] In a multi-vision system with a projection type image display unit that uses a liquid crystal panel as a light valve, the problem of unevenness in screen brightness and unevenness caused by variations in characteristics of light sources and optical components is solved. An object of the present invention is to provide a projection-type image projection device having a bright and extremely large screen with less unevenness in brightness and a seamless seam. [Structure] A plurality of projection type image display units 7 are stacked vertically and horizontally to form one large screen, and a lens 5 of each projection type image display unit 7 is provided with a mechanism for adjusting the F number and peripheral light amount, such as a variable diaphragm 8. By providing the above, it is possible to obtain a projection-type image display device in which brightness unevenness is small when a large screen is configured and a seam is not noticeable.
Inventors
- 👤 Yuichi Kimura
- 👤 雄一 木村
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