CAJ | 학술논문

挠曲电效应(Flexoelectric Effect)是指液晶分子在外电场的作用下，由于展曲/弯曲形变而导致的液晶分子自极化，并表现出宏观电偶极矩的现象。ADS 模式液晶显示面板在开机工作初，由于挠曲电效应从而产生闪烁漂移(Flicker Shift)的现象。本文从挠曲电效应的产生机理出发，结合试验结果，讨论了灰阶电压大小及灰阶电压对称性对闪烁漂移程度、速率的影响；当闪烁漂移达到稳定后，面板的实际公共电极电压(V com )偏移程度变化。结果发现，随着灰阶电压的升高，闪烁漂移程度会随着挠曲电效应的增强而加重，面板内 V com 电压偏移量也随之增加，而改变灰阶电压的对称性可在一定程度上增强或抵消自极化效应带来的 Flicker 漂移和 V com 电压偏移。利用该结果可一定程度上改善面板的显示特性。
뇨곡전효응(Flexoelectric Effect)시지액정분자재외전장적작용하，유우전곡/만곡형변이도치적액정분자자겁화，병표현출굉관전우겁구적현상。ADS 모식액정현시면판재개궤공작초，유우뇨곡전효응종이산생섬삭표이(Flicker Shift)적현상。본문종뇨곡전효응적산생궤리출발，결합시험결과，토론료회계전압대소급회계전압대칭성대섬삭표이정도、속솔적영향；당섬삭표이체도은정후，면판적실제공공전겁전압(V com )편이정도변화。결과발현，수착회계전압적승고，섬삭표이정도회수착뇨곡전효응적증강이가중，면판내 V com 전압편이량야수지증가，이개변회계전압적대칭성가재일정정도상증강혹저소자겁화효응대래적 Flicker 표이화 V com 전압편이。이용해결과가일정정도상개선면판적현시특성。
Flexoelectric effect refers to the spontaneous polarization of LC molecules caused by splay/bend deformation while they are under the action of external electrical field.It would make the LC molecules show electric dipole moment which may produce DC offset in ADS (advanced super dimen-sion switch)panels.The experiment result shows that flicker shift would happen because of flexoelec-tric effect when the ADS mode panel started to work.This paper investigated how the gray scale volt-age and the gray scale voltage symmetry influenced the flicker shift of ADS panel based on the mecha-nism of flexoelectric effect and experiment result.The flicker shift includes two aspects,shift rate and degree,as well as the voltage of common electrode (V com )deviation.The result indicates that the flicker shift and V com deviation would intensify with the increase of gray scale voltage.And also the change of gray scale symmetry may enhance or relieve flicker shift and V com deviation caused by flexo-electric effect.In this way we may relieve the flicker shift and V com deviation in ADS panel so that the display performance could be improved.