基于菱形电极结构的高对比度平面内扭转模式蓝相液晶显示器件设计

发布时间：2018-09-07 19:52

【摘要】：以往研究发现平面内扭转(In-Plane Switching,IPS)模式蓝相液晶显示器件的图像显示对比度明显低于理论预期。本文对导致这一问题的物理原理进行理论分析和实验验证,据此提出改进的菱形电极结构设计以解决这一问题。实验证明,调整走向后的IPS电极结构能使蓝相液晶显示器件的暗态漏光减小2/3,使其显示对比度提升至10 000∶1以上。基于这一实验发现,本文提出了全新的菱形电极结构设计,以求获得高对比度显示效果。除此以外,采用Techwiz仿真分析改进后的菱形IPS电极蓝相液晶显示器件的电光特性,发现其伽玛偏移和灰度反转可分别减小3/4和2/3,并且其驱动电压和透过率与传统IPS模式蓝相液晶显示器件相仿。可见,基于改进的菱形IPS电极结构的蓝相液晶显示器件相较传统蓝相液晶显示器件具备更好的显示性能和市场竞争力。
[Abstract]:Previous studies have shown that the image display contrast of the in-plane torsion (In-Plane Switching,IPS) mode blue liquid crystal display device is obviously lower than the theoretical expectation. In this paper, the physical principles leading to this problem are theoretically analyzed and experimentally verified, and an improved rhombic electrode structure design is proposed to solve this problem. The experimental results show that the IPS electrode structure can reduce the dark state light leakage of the blue liquid crystal display device by 2 / 3, and increase the display contrast to more than 10 000: 1. Based on the experimental results, a new structure design of diamond electrode is proposed in order to obtain high contrast display effect. In addition, the electro-optic characteristics of the improved blue-phase liquid crystal display device with diamond IPS electrode are analyzed by Techwiz simulation. It is found that the gamma-ray shift and gray inversion can be reduced by 3 / 4 and 2 / 3, respectively, and their driving voltage and transmittance are similar to those of conventional IPS mode blue liquid crystal display devices. It can be seen that the blue liquid crystal display device based on the improved diamond IPS electrode structure has better display performance and market competition than the traditional blue liquid crystal display device.
【作者单位】：索雷博光电科技(上海)有限公司;友怲光桘;
【分类号】：TN873.93

【相似文献】