Liquid crystal display device
US7646457B2 · kind B2 · utility
6Cited by
5References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Apr 24, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device comprising a liquid crystal cell, two polarizing plates having a polarizer and a protective film satisfying (1) and (2) below, and an optical compensatory film satisfying (3)-(8) below and disposed between the liquid crystal cell and the polarizer:0 nm≦Re(λ)≦5 nm (1)−20 nm≦Rth(λ)≦20 nm (2)20 nm<Re(548)<150 nm (3)50 nm<Rth(548)<400 nm (4)0.5<Re(446)/Re(548)<1 (5)1.0<Re(628)/Re(548)<2.0 (6)1.0<Rth(446)/Rth(548)<2.0 (7)0.5<Rth(628)/Rth(548)<1.0 (8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.