发明名称 |
Active pixel sensor array |
摘要 |
Disclosed is an active pixel sensor array, which can reduce the number of elements and the size of capacitors by enabling a reset switching transistor to include a function of an optical sensor and to reset a pixel voltage with a power supply voltage VDD after a gate selection signal is outputted, and to reset a pixel voltage with a power supply voltage VDD by a coupling function in case that a gate selection signal is outputted. The active pixel image sensor having a gate driving circuit and a column driving circuit includes a pixel composed of a voltage supply unit for supplying a signal voltage to the column driving circuit; a gate selection unit for turning on according to a n+1-th gate selection signal and outputting a voltage based on a difference between a pixel voltage and a threshold voltage of the voltage supply unit; a reset switching unit for turning on according to a n+1-th gate selection signal and resetting the pixel voltage with a power supply voltage VDD; and a storage unit and a coupling unit for coupling so as to initialize the pixel voltage to be lower than the power supply voltage VDD just after the n+1-th gate selection signal is outputted.
|
申请公布号 |
US2006119718(A1) |
申请公布日期 |
2006.06.08 |
申请号 |
US20050295373 |
申请日期 |
2005.12.06 |
申请人 |
SILICON DISPLAY TECHNOLOGY CO., LTD. |
发明人 |
HUR JI-HO;KIM SE-HWAN;JANG JIN |
分类号 |
H04N5/3745 |
主分类号 |
H04N5/3745 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|