薄膜电晶体显示器阵列之测试电路及方法
申请公布号:TW200506390
申请号:TW092121226
申请日期:2003.08.01
申请公布日期:2005.02.16
发明人:郭光义;田孝通
分类号:G01R31/26
主分类号:G01R31/26
代理人:苏翔
地址:台中市西屯区中工二路一八六号二楼
摘要:本发明揭示一种薄膜电晶体显示器电路之测试电路及方法,用以测试薄膜电晶体阵列之良窳,测试电路包含:一阵列测试机台、一被测物台座、一感测放大器阵列。其特征为:该感测放大器阵列由复数个转移阻抗放大器(transimpedance amplifier unit)及杂散电容放电电路组成,每一感测放大器包括:一转移阻抗放大器,由一运算放大器,二个开关及一个操作电容器组成,此转移阻抗放大器用以形成积分电路,其输出经一输出开关传送给取样/保持电路,经类比/数位转换器转换为数位信号;一薄膜电晶体阵列之源极线杂散电容放电电路,此放电电路用以形成杂散电容之电荷之放电路径。
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