Zhang Xiaoyu, Lin Wei, Liu Jiezhen, Liu Jiangwen, Weng Can
College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.
Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Polymers (Basel). 2024 Jun 6;16(11):1606. doi: 10.3390/polym16111606.
The enhancement of display performance and durability in polymer-stabilized vertical alignment liquid crystal and the liquid crystal are negative liquid crystals, which can be vertically aligned under the action of a vertical orientation layer and an electric field. Devices (PSVA LCDs) are crucial for advancing LCD technology. This study aims to investigate the electro-optical characteristics of PSVA LCDs by varying polymerization monomer concentrations. Using both simulations via TechWiz LCD 3D and experimental methods, such as polymer-induced phase separation, we developed an optoelectronic testing framework to assess voltage transmittance and response times. In our main findings, we show that an increase in polymeric monomer concentration from 3% to 7% resulted in a 67% increase in threshold voltage and a 44% decrease in saturation voltage. The on-state response time increased by about a factor of three, while the off-state response time decreased by about a factor of three. The alignment of our simulation results with experimental data validates our methodology, offering the potential of simulation tools as a pivotal resource in the PSVA LCDs. The alignment of our simulation results with experimental data validates our methodology, offering the potential of simulation tools as a pivotal resource in the PSVA LCDs. These advancements promise significant improvements in PSVA LCD performance and durability.
聚合物稳定垂直取向液晶(PSVA LCD)中显示性能和耐久性的增强以及液晶为负性液晶,其可在垂直取向层和电场的作用下垂直取向。该器件对于推动液晶显示器(LCD)技术至关重要。本研究旨在通过改变聚合单体浓度来研究PSVA LCD的电光特性。利用TechWiz LCD 3D模拟和聚合物诱导相分离等实验方法,我们开发了一个光电测试框架来评估电压透过率和响应时间。在我们的主要研究结果中,我们表明聚合单体浓度从3%增加到7%会导致阈值电压增加67%,饱和电压降低44%。导通状态响应时间增加了约三倍,而截止状态响应时间减少了约三分之一。我们的模拟结果与实验数据的吻合验证了我们的方法,表明模拟工具在PSVA LCD中作为关键资源具有潜力。我们的模拟结果与实验数据的吻合验证了我们的方法,表明模拟工具在PSVA LCD中作为关键资源具有潜力。这些进展有望显著改善PSVA LCD的性能和耐久性。