Light modulating element, backlight module, display device and method for driving the same
US11215863B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Dec 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/066
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-modulating element, a backlight module, a display device and a method for controlling the same are provided. The light-modulating element includes a first substrate and a second substrate arranged opposite to each other, and a polymer dispersed liquid crystal layer located between the first substrate and the second substrate. The light-modulating element is divided into a plurality of light-modulating zones, and the light-modulating element further includes a first electrode and a second electrode located in each of the plurality of light-modulating zone. A plurality of first electrodes located in different light-modulating zones are independently arranged, and the first electrode and the second electrode are configured to drive a deflection of polymer dispersed liquid crystal molecules in polymer dispersed liquid crystal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.