Light guide plate and its fabricating method, as well as backlight module
US10782469B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Apr 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a light guide plate and its fabricating method, as well as a backlight module. The light guide plate comprises a light-transmitting plate body provided with a plurality of light guide dots on a light-exiting surface thereof, and further provided with a plurality of dimming pits, wherein a plurality of light guide dots are provided around each of the dimming pits; an inner wall of each of the dimming pits sequentially includes multiple levels of dimming surfaces along a depth direction of the dimming pits, for reflecting light incident thereon to the light guide dots. The backlight module comprises the light guide plate provided in the above-described technical solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.