| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a three-plate type liquid crystal projector improved in color balance, more particularly, color balance in black display without sacrificing a dynamic range. <P>SOLUTION: A three-plate type liquid crystal projector includes: a light source lamp for emitting light; a light separation optical system for separating the light emitted from the light source lamp into red light, green light and blue light; respective liquid crystal light bulbs for the red light, the green light and the blue light each including a liquid crystal display element and two polarizing plates arranged on incident sides and emission sides of the liquid crystal display elements, and modulating the separated light. At least partial light transmission axes A of the polarizing plates arranged on the emission sides of respective liquid crystal display elements are displaced and adjusted so that color balance in black display is improved within the range of a prescribed displacement angle θ from a conventional general position where contrast becomes maximum in relation to a liquid crystal molecule alignment direction B of the liquid crystal display elements. <P>COPYRIGHT: (C)2012,JPO&INPIT |
