Optical sheet, backlight module and display device
US11300829B2 · kind B2 · utility
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13Claims
0Family size
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Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Apr 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure provides an optical sheet, a backlight module and a display device. A transparent photochromic material is coated on at least part of the locations (A) on a surface of the optical sheet (11). The backlight module comprises a light source (131), a light guide plate, and the above described optical sheet (111, 112). The display device comprises the said backlight module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.