Invention Grant
US09277195B2 Pixel array with clear and color pixels exhibiting improved blooming performance
有权
具有清晰和彩色像素的像素阵列表现出改善的喷射性能
- Patent Title: Pixel array with clear and color pixels exhibiting improved blooming performance
- Patent Title (中): 具有清晰和彩色像素的像素阵列表现出改善的喷射性能
-
Application No.: US14247457Application Date: 2014-04-08
-
Publication No.: US09277195B2Publication Date: 2016-03-01
- Inventor: Kai-Ling Chiu , Masayuki Uchiyama , Po-Chun Chiu , Tse-Hua Lu , Yuichiro Yamashita
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Eschweiler & Associates, LLC
- Main IPC: H04N9/73
- IPC: H04N9/73 ; H04N9/04

Abstract:
This disclosure provides pixel arrays made up of a clear pixel and a color pixel. The color pixel includes a first photo-detecting element and a color pixel access transistor to selectively couple the first photo-detecting element to a first charge-storage node. The clear pixel includes a second photo-detecting element and a clear pixel access transistor to selectively couple the second photo-detecting element to a second charge-storage node. The color pixel access transistor transfers a first charge per unit time between the first photo-detecting element and the first charge-storage node. The clear pixel access transistor transfers a second charge per unit time between the clear pixel access transistor and the second charge-storage node. The first charge per unit time is less than the second charge per unit time to mitigate blooming. In other embodiments, the clear pixel includes an excess-charge transfer path that couples the clear pixel to a DC supply node to mitigate blooming.
Public/Granted literature
- US20150288940A1 PIXEL ARRAY WITH CLEAR AND COLOR PIXELS EXHIBITING IMPROVED BLOOMING PERFORMANCE Public/Granted day:2015-10-08
Information query