Backlight module and display device
US11487155B2 · kind B2 · utility
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20Claims
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Assignee
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Key dates
| Filing date | May 24, 2022 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | May 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module includes an optical plate, a light source, and at least one optical film. The optical plate includes a light-emitting surface, a bottom surface and a side surface. The light source faces to the bottom surface or the side surface. The optical film is disposed above the light-emitting surface and includes a main body and at least one refractive part disposed on an end surface of the main body. The refractive part includes a plurality of microstructures and a substrate. The substrate is adhered to the end surface, and the microstructures are distributed in the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.