公开(公告)号：US20130092941A1

公开(公告)日：2013-04-18

申请号：US13652007

申请日：2012-10-15

Applicant: Apple Inc.

Inventor： Willem DEN BOER ,  Tin NGUYEN ,  Patrick J. GREEN

IPC: H01L31/0224

CPC classification number: H01L31/0224 ,  H01L27/14609 ,  H01L27/1463 ,  H01L27/14643 ,  H01L27/14663 ,  H01L27/14692 ,  H04N5/32

Abstract: An image sensor array includes image sensors having photo TFTs to generate photocurrent in response to received images. The photo TFTs each have their respective gate electrodes and source electrodes independently biased to reduce the effects of dark current. Storage capacitors are coupled to each photo TFT and discharged upon generation of a photocurrent. Each storage capacitor is coupled to a readout TFT that passes a current from the storage capacitor to a data line. The photo TFT may be disposed above the storage capacitor to increase the exposed surface area of the photo TFT.

Abstract translation: 图像传感器阵列包括具有光TFT的图像传感器，以响应于接收的图像产生光电流。 各个光电TFT分别具有各自的栅电极和源电极偏置以减少暗电流的影响。 存储电容器耦合到每个光电TFT并且在产生光电流时放电。 每个存储电容器耦合到将电流从存储电容器传递到数据线的读出TFT。 光电TFT可以设置在存储电容器的上方，以增加照片TFT的暴露的表面积。