摘要
TFT的器件特性是影响氧化物TFT驱动的LCD显示屏良率的关键因素。本文研究了氧化物TFT的关键特性参数(阈值,稳定性)对窄边框LCD显示屏的良率和可靠性的影响。氧化物TFT阈值过负,将会导致TFT无法正常关断,而使显示屏的外围移位寄存器(VSR)电路失效。另外,在显示区域用于像素驱动的氧化物TFT的高温和背光照射下阈值持续负向漂移,最终会导致显示区域的驱动TFT漏电流过大,从而使显示屏出现串扰和残影不良。
The characteristics of TFT are critical to the reliability of metal oxide-TFT drived LCD.The effect of V th and stability of oxide-TFT to the reliability of narrow-bezel LCD display were researched.The negative V th of the normal-on oxide-TFT can result in the failure of VSR scan circuits.Others,the negative-shift of the V th of TFT in pixel at high temperature and under back-light illumination can cause the V th negative shift and results in the cross-talk or image-sticking because of the high leakage current of TFT.
作者
楼均辉
姜姝
吴天一
符鞠建
夏兴达
何泽尚
迟宵
应变
李喜峰
LOU Jun-hui;JIANG Shu;WU Tian-yi;FU Ju-jian;XIA Xing-da;HE Ze-shang;CHI Xiao;YING Bian;Li Xi-feng(Tianma Micro-electronics Group,Shanghai 201205,China;Key Laboratory of Advanced Display and System Applications of Ministry of Education,Shanghai University,Shanghai 200072,China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2018年第3期383-387,共5页
Chinese Journal of Luminescence
基金
国家高技术研究发展计划(863)(2015AA033406)
上海市科委项目(16JC1400602
17DZ2291500)资助~~
