Optical compensation film, viewing angle compensation integral type polarizing plate, and liquid crystal display device
This invention is to provide a substrate for an optical compensation film capable of improving the durability of a viewing angle compensation function, and to provide an optical compensation film, a viewing angle compensation integrated type polarizer and a liquid crystal display device. In this sub...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
01.11.2004
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Subjects | |
Online Access | Get full text |
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Summary: | This invention is to provide a substrate for an optical compensation film capable of improving the durability of a viewing angle compensation function, and to provide an optical compensation film, a viewing angle compensation integrated type polarizer and a liquid crystal display device. In this substrate for an optical compensation film, photoelastic coefficients C(md), C(td) in the longitudinal and lateral directions of a cellulose film are 1x10-9 to 1x10-13Pa-1, and C(md)<C(td); a dimensional variation ratios S(md), S(td) before and after 50 hour-treatment at 80 DEG C, 90% RH in each direction are -1 to 1% and |S(md)| > |S(td)| , and R0 of following equation (I) is 20 to 70 nm and Rt of following equation (II) is 70 to 400 nm: (I) R0=(nx-ny)*d, (II) Rt=((nx+ny)/2-nz)*d. |
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Bibliography: | Application Number: TW200493101247 |