Flüssigkristall-Projektionsanzeigevorrichtung

摘要

The optical illumination system of a liquid crystal panel (18) includes an integrator having a first lens array (21) made up of a plurality of lens elements and a second lens array (22) made up of lens element corresponding to the lens elements of the first lens array (21). A single ray bundle incident on the first lens array (21) is split into a plurality of split ray bundles by the first lens array (21) and pass through the corresponding lens elements of the second lens array (22) and further through a collimator lens (15), dichroic mirrors (16B, 16R, 16G) and enter the liquid crystal panel (18). The liquid crystal panel (18) is illuminated with the ray bundles sent from all the lens elements of the first lens array (21) in a superimposing manner and the illuminance distribution is made even. The projection-type liquid crystal display apparatus is provided for preventing a reduction in image quality due to deposited foreign substances such as dust, arc fluctuations of a light source and so on.