LC电池剩余直流电的评价

Proceedings of 5th Asian Symposium on Information Display. ASID '99 (IEEE Cat. No.99EX291) Pub Date : 1999-03-19 DOI:10.1109/ASID.1999.762750

Y. Nakazono, T. Takagi, A. Sawada, S. Naemura

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引用次数: 1

摘要

通过对LC电池等效电路的仿真，以及对三种具有不同取向层和不同比电阻率值的电池的实验，讨论了剩余直流现象。多层介质的界面极化和偶极极化是由直流电压作用引起的。在短时间范围内(几分钟)观察到的r-DC可以用这种极化来解释。然而，即使在界面极化放松后，由于吸附现象，在LC和取向层之间的界面附近移动的一些离子仍停留较长时间。观察到的r-DC电压在较长的时间范围内，通常超过1小时，可以用这种离子吸附模型来解释。

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Evaluation of residual DC of LC cell

Residual DC phenomenon is discussed based on the simulation with equivalent circuit of LC cell and experiments for three kind of cells which has different alignment layer with different specific resistivity values. Interfacial and dipole polarization of multi layered dielectrics is caused by DC voltage application. The r-DC observed in short time range (few min.) can be explained by this polarization. Even after the interfacial polarization is relaxed, however, some amount of ions, which moved close to the interface between the LC and the alignment layers, remain for a longer time due to an adsorption phenomenon. The observed r-DC voltage for a longer time range, typically over 1 hour, can be explained by this model of ion adsorption.

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Proceedings of 5th Asian Symposium on Information Display. ASID '99 (IEEE Cat. No.99EX291)

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