| 摘要 |
PURPOSE:To suppress the increase of areas not to contribute to images, and to improve the quality of images by making the condensed spot shape of a microlens asymmetrical. CONSTITUTION:This device is provided with a liquid crystal panel 1 equipped with a picture element group for which the opening shape of picture elements 6 is rectangular, and microlens array 202 to condense light from a light source to the openings of the picture elements 6 on the liquid crystal panel 1. Then, for the microlens array 202, the curvature of a lens on the end face of a line A-A is made different from the curvature of the lens on the end face of a line B-B. Namely, a focal distance corresponding to the short side direction of the rectangular opening is made different from the focal distance corresponding to the long side direction. By mounting the microlens array 202 using the microlens having such a focal distance on the liquid crystal panel 1, the shape of the condensed spot can be made equal to the opening shape of the liquid crystal panel 1. Thus, the areas not, contributing for images are decreased, and the reduction of picture quality can be suppressed. |
