Viewing angle controlling light source device and display apparatus
US10120260B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A viewing angle controlling light source device and a display apparatus are provided. The viewing angle controlling light source device includes a base substrate; a light emitting array arranged on the base substrate, wherein the light emitting array includes a plurality of light emitting units; at least one liquid crystal lens array arranged on the light emitting array, wherein the liquid crystal lens array includes a plurality of liquid crystal lens units corresponding to the light emitting units one by one, each liquid crystal lens unit includes a first electrode and a second electrode, and a liquid crystal layer arranged between the first electrode and the second electrode, a light emergent direction of light emitted by the light emitting unit after the light transmitting through the liquid crystal lens unit by regulating a voltage difference between the first electrode and the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.