Biometric sensing device and display apparatus including same
US11657641B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 11, 2022 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/198
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A biometric sensing device and a display apparatus including the same are provided. The biometric sensing device includes a first thin film transistor, a second thin film transistor, and a photodiode. The first thin film transistor has a gate. The second thin film transistor has a semiconductor layer and a non-gate electrode terminal. The non-gate electrode terminal is electrically connected to the gate of the first thin film transistor. The photodiode contacts a semiconductor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.