Backlight module and liquid crystal display device
US11221516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Aug 31, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136222
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module and a liquid crystal display device are provided. The backlight module includes: a light guide plate including a light incident surface, a light emergent surface, and a bottom surface opposite to the light emergent surface; a light source, disposed on a side of the light incident surface of the light guide plate, the light emitted by the light source enters the light guide plate from the light incident surface; a plurality of collimating parts, disposed on at least one of the light emergent surface of the light guide plate and the bottom surface opposite to the light emergent surface, wherein a portion of the light entering the light guide plate is collimated by the plurality of collimating parts and then emitted from the light emergent surface of the light guide plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.