Solid-state image-sensing device that compensates for brightness at edges of a display area and a driving method thereof
US7193199B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Sep 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state image-sensing device that compensates for brightness at edges of a screen and a method of driving the device are provided. The solid-state image-sensing device comprises: an active pixel sensor (APS) array including pixels disposed in a two-dimensional matrix, each pixel for outputting a photoelectrically converted image signal generated by a photodiode in response to one of a plurality of transmission control signals transmitted to a selected row of the APS array, and for generating and outputting a reset signal in response to a reset control signal; a row driver for selecting a row of the APS array by generating row selection signals and for generating the reset control signal; an integration time control driver for generating the transmission control signals for setting non-uniform integration times of the photodiodes in each pixel; and an analog-digital converter for converting an analog signal corresponding to a difference between the image signal and the reset signal into a digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.