Backlight module and controlling method thereof, and display device
US10663796B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Feb 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module, a controlling method thereof, and a display device are disclosed. The backlight module includes a light guide plate and at least one digital micro-mirror device located on a side of the light guide plate away from a light exiting surface. The at least one digital micro-mirror device includes a plurality of micro-mirrors, and a reflective surface of each of the plurality of micro-mirrors faces the light guide plate. A local brightness of the backlight module is adjusted by controlling the micro-mirrors in the digital micro-mirror device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.