22.4: In-Cell Multiple Ambient Light Sensor (ALSs) LCD Integration Using Si-based Photonic Sensor by a-Si TFT Technology

We have developed a new AMLCD with multiple ambient light sensors (ALSs) for reducing backlight (BL) power consumption, and false sensing of ambient illuminance. ALSs perform well in showing BL control for power‐saving, even though one of the sensors is covered by a finger shadow. Architecture of in...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2010-05, Vol.41 (1), p.319-322
Main Authors: Cho, An-Thung, Tseng, Hung-Wei, Sun, Min-Wei, Chen, Shin-Shueh, Lee, Ming-Hsien, Wu, Yu-Hua, Liu, Wan-Yi, Peng, Chia-Tien, Kuo, Chung-Hong, Chen, Jim-Shone, Li, Chun-Huai, Hung, Chi-Mao, Huang, Wei-Ming
Format: Article
Language:English
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Summary:We have developed a new AMLCD with multiple ambient light sensors (ALSs) for reducing backlight (BL) power consumption, and false sensing of ambient illuminance. ALSs perform well in showing BL control for power‐saving, even though one of the sensors is covered by a finger shadow. Architecture of integrated ALS with a‐Si and LTPS technologies are presented. We fabricate the in‐cell, and wide‐dynamic‐sensing ALSs display using new light sensor technology. Photo‐electrical characteristics with well linearity and reliability under long‐term operation were observed.
ISSN:0097-966X
2168-0159
DOI:10.1889/1.3500444