Display device and operating method thereof
US12339482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2022 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Nov 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0125
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display device includes a first image generating unit and a first waveguide glass. The first image generating unit is configured to emit first light. The first waveguide glass faces toward the first image generating unit. The first waveguide glass includes a first microstructure, two second microstructures and a third microstructure. The first microstructure is located between two ends at the same side of the two second microstructures. The third microstructure is located between the two second microstructures. The third microstructure has a first grating and a second grating. An extending direction of the first grating is different from an extending direction of the second grating. The second microstructure is configured to receive the first light of the first image generating unit transmitted through the first microstructure and transmit the first light to the third microstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.