Anisotropic scattering film for improving the viewing angle dependency of a liquid crystal display
US7683986B2 · kind B2 · utility
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Key dates
| Filing date | Sep 21, 2006 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Dec 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133504
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention aims at providing a display which can improve viewing angle dependency of contrast ratio in a wide azimuth without changing design of a basic structure of a display element, impairing display quality in a direction showing large contrast ratio and being limited to a state of displaying white or black. The aim is attained by a display comprising: a display element having viewing angle dependency of contrast ratio; and an anisotropic scattering film having an anisotropic scattering layer, wherein the anisotropic scattering film has a scattering central axis approximately parallel to a direction showing the largest contrast ratio of the display element and is located on a viewing screen side of the display element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.