| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid crystal projector enhancing heat radiation of a light modulating means including a liquid crystal light valve, preventing dust or the like from sticking on the surface of the liquid crystal light valve, and making black matrixes formed between pixels in the liquid crystal light valve inconspicuous. <P>SOLUTION: The liquid crystal projector includes: a light source unit; a colored-ray separating means for separating light emitted from the light source unit into three colored rays; a light modulating means for serving to modulate the three colored rays on the basis of a given image signal and to emit the modulated rays which are predetermined linear polarized rays; a colored-ray mixing means for mixing the modulated rays together; and an optical projection means for enlarging and projecting the synthesized rays synthesized by the colored-ray synthesizing means onto a screen. The light modulating means has entrance dust-proof glasses 420 (R, G, and B), made of crystal having a uniaxial crystal structure, arranged on entrance sides of liquid crystal light valves 440 (R, G, and B), and is provided with exit dust-proof glasses 460 (R, G, and B) made of crystal having birefringence on exit sides thereof. <P>COPYRIGHT: (C)2007,JPO&INPIT |
