Touch panel, display device, display system, and touch method with photosensitive layer for in-the-air input detection
US11720214B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Jan 18, 2022 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jan 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1318
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provides is a touch panel. The touch panel includes: a first electrode layer, a photosensitive layer, and a second electrode layer that are laminated, wherein the photosensitive layer is insulated from the first electrode layer and the second electrode layer, and the first electrode layer, the photosensitive layer, and the second electrode layer are capable of forming a plurality of touch units arranged in an array. The photosensitive layer is configured to generate a dielectric constant change at a position under irradiation by light from a line light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.