快速响应的共面转换型液晶显示器

发布时间：2018-03-22 00:33

本文选题：FIS液晶显示器　切入点：工作电压　出处：《液晶与显示》2017年09期 　论文类型：期刊论文

【摘要】：共面转换液晶显示器(IPS-LCD)由于其具有可视角度大、色彩真实、画质出色等优点,在平板显示器中得到了广泛应用,然而响应速度慢限制了其在高端显示器中的应用。本文中,首先通过采用正性液晶,对IPS类型中的边缘场转换型(FFS)和边缘场共面转换型(FIS)的液晶显示器,不同摩擦角度下的电光特性和响应时间进行了模拟计算。然后从预倾角度、电极尺寸以及弹性常数出发,对FIS液晶盒结构参数进行了优化,提出了一种快速响应的液晶显示器。我们通过计算机模拟发现,在FFS液晶盒中,摩擦角度对工作电压具有较大影响,小摩擦角度可实现高透过率、低工作电压;而在FIS液晶盒中,摩擦角度对响应时间具有较大影响,大于10°时与2°时相比,响应速度可提高82.7%以上。并且,不同摩擦角度下,弹性常数对FIS液晶显示器的响应速度影响不同,摩擦角度为2°时,响应速度与弹性常数K11、K22、K33都有关,而摩擦角度为12°时,响应速度只与K22有关,这个原因导致了12°与2°时相比,响应速度提高了84.2%。
[Abstract]:Coplanar conversion liquid crystal display (IPS-LCD) has been widely used in flat panel display because of its advantages of large visual angle, real color and excellent picture quality. However, the slow response speed limits its application in high-end display. In this paper, the electro-optic characteristics and response time of the edge field conversion (FFS) and edge field coplanar conversion (fish) liquid crystal displays of IPS type are first simulated by using positive liquid crystal, and the electro-optic characteristics and response time are calculated at different friction angles. Then, from the angle of pretilt, the electrooptic characteristics and response time of the liquid crystal display with edge field conversion and edge field coplanar conversion are simulated and calculated. On the basis of electrode size and elastic constant, the structure parameters of FIS liquid crystal cell are optimized, and a fast response liquid crystal display is proposed. We find that in the FFS liquid crystal cell, a fast response liquid crystal display is obtained by computer simulation. The friction angle has a great influence on the working voltage, and the small friction angle can achieve high transmittance and low working voltage, while in the FIS liquid crystal cell, the friction angle has a great influence on the response time, compared with 2 掳when the friction angle is greater than 10 掳. The response speed can be increased by more than 82.7%, and the elastic constant has different effect on the response velocity of FIS liquid crystal display at different friction angles. When the friction angle is 2 掳, the response velocity is related to the elastic constant K11K22K33, while the friction angle is 12 掳. The response speed is only related to K22, which causes the response speed to increase by 84.2 when compared with 12 掳and 2 掳.
【作者单位】：河北工业大学应用物理系;河北工业大学电子信息工程学院;
【基金】：国家自然科学基金(No.11304074,No.61475042,No.11274088) 河北省自然科学基金(No.A2015202320) 河北高校重点学科建设项目(No.GCC2014048)~~
【分类号】：TN873.93

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