Light reflecting structure, backlight module and display device
US11719977B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 11, 2022 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133603
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light reflecting structure, a backlight module, and a display device are provided. The light reflecting structure is configured to reflect light emitted from plural light emitting units. The light reflecting structure includes a bottom portion and plural sidewall portions. The sidewall portions are erected on the bottom portion. The sidewall portions respectively and correspondingly surround the light-emitting units, and the light emitted from each of the light-emitting units can be directed to a light reflecting surface corresponding to each of the sidewall portions to be reflected outward. A distance P is defined between any two adjacent sidewall portions, and each of the sidewall portions has a height H1. The distance P and the height H1 satisfy a first inequality, and the first inequality is H1<P/2×tan θ. θ represents a complementary angle of a half light-intensity angle of each of the light-emitting units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.