39‐4: Analysis of Large Area Optical Fingerprint Recognition Technology under OLED Screen
Guiyang Zhang, Xinlin Ye, Chuan Shuai, Rui He, Guowei Zha, Guanghui Liu, Jianfeng Yuan · SID Symposium Digest of Technical Papers · 2023
This paper theoretically and experimentally analyzes the influence of different sensor array schemes and optical collimation structures on fingerprint recognition. Considering the process yield, cost and the quality of fingerprint image, we find the appropriate size ranges of microlenses and sensors are 20~30 μm and 35~50 μm respectively, and the bonding process between the optical collimating film and the sensor substrate has little damage to the sensor, which is conducive to mass production.