发明授权
- 专利标题: Apparatus and method for displaying image
- 专利标题(中): 用于显示图像的装置和方法
-
申请号: US09870327申请日: 2001-05-30
-
公开(公告)号: US06784961B2公开(公告)日: 2004-08-31
- 发明人: Yoshio Suzuki , Sou Miyasaka , Yoshiki Shirochi , Takeshi Tanimoto
- 申请人: Yoshio Suzuki , Sou Miyasaka , Yoshiki Shirochi , Takeshi Tanimoto
- 优先权: JP2000-163125 20000531; JP2000-194224 20000628
- 主分类号: G02F11335
- IPC分类号: G02F11335
摘要:
Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art. Further, a phase difference caused by the birefringence of the nematic liquid crystal molecule is compensated for by using a substance having properties optically opposite to the positive crystal, namely, a substance having birefringence equivalent to birefringence of a negative crystal.
公开/授权文献
- US20020018162A1 Apparatus and method for displaying image 公开/授权日:2002-02-14
信息查询