Abstract
In this paper, the test of residual DC voltage was carried out on the test cells with different combinations of liquid crystal (LC), polyimide alignment film (PI) and color resist flat layer (PFA). Combined with the circuit simulation results, the residual DC voltage was comprehensively analyzed, it is its characteristics of "fast accumulation" and "slow release" that lead to the decrease in the reliability of TFT‐LCD display. By analyzing the characteristic parameters of related materials, we have given the optimal combination of materials to reduce the residual DC voltage. As various application scenarios require higher and higher panel performance and their material combinations become more and more complex, the research results in this article will be of great significance for improving the reliability of TFT‐LCD displays.
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