Invention Grant
- Patent Title: Retardation compensation plate, retardation compensator, liquid crystal display device, and projection-type image display device
- Patent Title (中): 延迟补偿板，延迟补偿器，液晶显示装置和投影型图像显示装置
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Application No.: US11855326Application Date: 2007-09-14
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Publication No.: US07956938B2Publication Date: 2011-06-07
- Inventor: Yutaka Muramoto
- Applicant: Yutaka Muramoto
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2006-250143 20060914
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02B5/30
Abstract:
A retardation compensation plate having a birefringent property for compensating residual retardation of a liquid crystal panel includes: a combined unit formed of an optical multi-layered film composed of a plurality of layers having different refractive indices stacked in a regular order and a polymer film. In the retardation compensation plate, the retardation compensation plate and the liquid crystal panel have in-plane retardations that satisfy the relationship: 1
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