Light guide plate, backlight source and liquid crystal display device
US9164224B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate used for an LED backlight source. The LED backlight source comprises a plurality of LED lamps. The light guide plate comprises a light guide plate body (24). The light guide plate body (24) is provided thereon with a plurality of dots (242), and there is a light guide region in the light guide plate body (24). In the light guide region, the diameters of the dots in the same dot row progressively increase from the middle to either side, and diameters of the dots in the same dot column progressively increase in the direction away from the LED lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.