Residual DC characteristic on Twisted Nematic Liquid Display on the Polyimide Surface by the Thermal Stress

열적 stress에 의한 폴리이미드 표면에서의 TN-LCD의 잔류DC 특성

  • Published : 2004.11.11

Abstract

In this study, the threshold voltage and the response time of thermal stressed TN-LCDs showed the same performances on no thermal stressed TN-LCDs. There was little change of value in TN cells. Also, the transmittances of TN-LCDs on the rubbed PI surface were almost same while increasing thermal stress time. However, the thermal stability of TN cell was decreased by the high thermal stress for the long duration. Residual DC was decreased as the thermal stress increases. Especially, when TN cell was stressed more and more by heating, residual DC was changed a lot. As a result, the residual DC property of LCD in projection TV is affected very much by heating.

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