Optical element and backlight unit and liquid crystal display having the same
US8508690B2 · kind B2 · utility
0Cited by
19References
6Claims
0Family size
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Key dates
| Filing date | Aug 7, 2009 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Apr 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element capable of increasing an angular field while improving luminance by condensing light, and a backlight unit and a liquid crystal display including the same. The optical element includes a light-transmitting base film; a plurality of diffusing cavities or convex diffusing structures formed in one surface of the base film to diffuse light entering the base film; and a light-condensing pattern formed in the surface of the base film where the diffusing cavities or convex diffusing structures are formed so as to condense incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.