Liquid crystal display device and liquid crystal projector

Abstract

Abstract PURPOSE:To improve the gradation near a white peak of a projected video by providing a liquid crystal panel corresponding to R, G, B lights as a light bulb, providing a liquid crystal panel acting as a white light bulb, synthesizing four units of projected lights and outputting the synthesized light. CONSTITUTION:A P wave transmitted through a polarized light beam splitter 8 is separated into R, G, B lights by dichroic mirrors 4a, 4b and made incident into liquid crystal panels 6R, 6B, 6G. On the other hand, an S wave separated by the splitter 8 is made incident in a liquid crystal panel 6W, from which a P wave is projected and is made incident in a polarized light beam splitter 9. Thus, the projected light from the panel 6W is synthesized with projected lights from the panels 6R, 6B, 6G at the splitter 9 and the synthesized light is projected onto a screen from a projection lens 7. Display with high accuracy is attained by adding a white light by RGB synthesis to the projected light and the gradation of the white level is reproduced with much accuracy.

Inventors

• 👤 Akihiro Sato
• 👤 明洋 佐藤

Bibliographic Details