Light modulation panel and display device
US10473833B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 17, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Oct 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/201
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This disclosure relates to a light modulation panel and a display device. The light modulation panel comprises: a color separation grating plate having a plurality of light-transmissive microstructures; a reception substrate located on a light exit side of the color separation grating plate and spaced away from the color separation grating plate; and an optical waveguide layer located on a light exit side of the reception substrate. According to technical solutions of this disclosure, the optical waveguide layer can modulate the exit light into collimated light. As a result, cross-color phenomenons of the display device can be effectively improved, and thereby the display quality is enhanced. In addition, by adjusting a structure of the optical waveguide layer, the exit light can also be emitted out at a preset angle such that the display device can be applied in occasions such as 2D display, 3D display or privacy protection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.