Electronic device
US11900716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2022 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Sep 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13338
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic device which has a narrow viewing angle state and a wide viewing angle state includes a diffuser layer, a panel and a light source. The panel is disposed on the diffuser layer. The light source provides a light passing through the panel. In the narrow viewing angle state, the light has a first relative light intensity and a second relative light intensity. The first relative light intensity is the strongest light intensity, and the second relative light intensity is 50% of the strongest light intensity. The first relative light intensity corresponds to an angle of 0°, the second relative light intensity corresponds to a half-value angle, and the half-value angle is between −15° and 15°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.