Optical waveguide element and control method thereof, backlight module and display device
US11391882B2 · kind B2 · utility
0Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Feb 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/011
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical waveguide element and control method thereof, a backlight module and a display device. The optical waveguide element includes a cavity, a light incident surface and a light emergent surface, light entering the cavity from the light incident surface is configured to propagate and be totally reflected in the cavity; and a reflector array, located in the cavity and configured to be controllable to cause at least a part of the light incident on the reflector array to be reflected out of the light emergent surface or to continue being totally reflected at the light emergent surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.