Abstract
Image sticking can be observed in some cases and it degrades the image quality of liquid crystal (LC) display. The image sticking is considered to be induced by generation of residual direct current voltage (Vrdc), which would be caused by the presence of ion in a LC cell. We clarified the generation mechanism of Vrdc based on a model of adsorption and desorption of the ion to and from the surface of an alignment layer at various temperatures. The experimental results indicate that these processes can be explained by the Boltzmann distribution. The analysis based on Arrehnius plots shows that the ion adsorbs to the surface of the alignment layer with weak binding such as van der Waals interaction or hydrogen bonding. This finding is effective for development of high image quality LC displays.
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