Backlight module and control method, display screen and wearable device
US10796646B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Oct 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A backlight module comprising a light source and a light guide plate. The light guide plate comprises a transparent substrate and a plurality of dimming units having a reflecting function. The light source is disposed on at least one side of said transparent substrate, and the plurality of dimming units is disposed on a lower surface of the transparent substrate for adjusting an emergent intensity of light, which is incident from the light source into the light guide plate, on an upper surface of said transparent substrate facing away from said dimming units. A method for controlling a backlight module and a display screen and wear device including the backlight module are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.