An Over 120dB Simultaneous-Capture Wide-Dynamic-Range 1.6e~- Ultra-Low-Reset-Noise Organic-Photoconductive-Film CMOS Image Sensor

摘要

Image sensors are increasingly becoming key devices for various applications (in-vehicle, surveillance, medical, and so on). To realize the best possible imaging and sensing performance, there is growing demand for extended dynamic range that can precisely reproduce color tone. Several conventional papers have described methods for enhancing dynamic range, such as multiple exposures in a frame [1] and a lateral overflow integration capacitor [2,3]. However, all these techniques realize a 100-to-200dB dynamic range by synthesizing multiple exposures, with asynchronism between multiple exposures causing time distortion. Thus, a simultaneous-capture wide dynamic range (SCWDR) over 100dB is desired.