Polarizer for compensation of gravity defect in liquid crystal display device
US7403247B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Aug 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An LCD device is disclosed, having a polarizer of which a retardation value is variable on regions for compensation of gravity defect caused by an excess liquid crystal at room temperature, wherein the LCD device includes an LCD panel having a normal cell gap region and an abnormal cell gap region; and the polarizer having a compensated retardation value Δnd for the abnormal cell gap region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.