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22.4: In‐Cell Multiple Ambient Light Sensor (ALSs) LCD Integration Using Si‐based Photonic Sensor by a‐Si TFT Technology
Author(s) -
Cho AnThung,
Tseng HungWei,
Sun MinWei,
Chen ShinShueh,
Lee MingHsien,
Wu YuHua,
Liu WanYi,
Peng ChiaTien,
Kuo ChungHong,
Chen JimShone,
Li ChunHuai,
Hung ChiMao,
Huang WeiMing
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3500444
Subject(s) - backlight , illuminance , shadow (psychology) , liquid crystal display , power consumption , reliability (semiconductor) , power (physics) , computer science , optoelectronics , thin film transistor , materials science , photonics , electronic engineering , engineering , optics , physics , nanotechnology , psychology , quantum mechanics , psychotherapist , layer (electronics)
Abstract 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.