Operating method of image sensor
US9749567B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2015 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Nov 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/1433
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An operating method of an image sensor includes the following steps. The image sensor includes at least one pixel unit. The pixel unit includes a photoelectric conversion unit, a first control unit, a capacitor unit, and a sensing unit. The photoelectric conversion unit includes a quantum film photoelectric conversion unit, and the first control unit includes an oxide semiconductor transistor. The capacitor unit is coupled to the first control unit, and the sensing unit is configured to sense signals at a sense point coupled between the first control unit and the sensing unit. The pixel unit is discharged before a readout operation. The capacitor unit is charged by electrons emitted from the photoelectric conversion unit when the photoelectric conversion unit is excited by light. Signals at the sense point are then sensed by the sensing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.