Dimming assembly, backlight module, and liquid crystal display device
US11892673B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 9, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Apr 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1336
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dimming assembly includes a first prism having a first surface and a second surface opposite to each other, and a second prism disposed on a side where the second surface of the first prism is located. The first surface includes first dimming portions, each of which includes two first side surfaces. Edges of the two first side surfaces away from the second surface intersect at a first intersection line. A surface of the second prism proximate to the second surface includes second dimming portions, each of which includes two second side surfaces. Edges of the two second side surfaces proximate to the second surface intersect at a second intersection line. A distance between orthographic projections of two adjacent first intersection lines on the second surface is less than a distance between orthographic projections of two adjacent second intersection lines on the second surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.