Session and scheduling information are listed below. Select a session from the list and press "Go" to view the abstracts for that session.
Poster Session :
Liquid Crysal Technology Posters: Improvement Image Quality in LCDs
Thursday, May 16, 2024, 5:00 PM – 8:00 PM / San Jose Convention Center, Room 220A
P.175 - Quantitative Analysis of LCD Motion Ghosting Based on Visual Perception Model
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Qiqi Qin, Geyu Tang, Yuecu Lin, Weiwei Zheng
TCL China Star Optoelectronics Technology Co. Shenzhen China
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To analyze the motion ghosting phenomenon in liquid-crystal displays (LCDs), a motion block artifact simulation model based on response time (RT) curves is established using human visual perception theory. By calculating the brightness integral, the presence and degree of the rebound phenomenon are quantified. Furthermore, based on the quantified changes in RT curves at different frames, the mechanism of rebound generation is analyzed, and improvement measures are proposed.
P.176 - New Liquid-Crystal Materials for High-Contrast Fringe-Field Switching Displays
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Hao Zhou, Guoren Luo, Rentang Zhao, Ji Li, Chung-Ching Hsieh, Zhifu Li, Xiao Liu
TCL China Star Optoelectronics Technology Co., Ltd. Shenzhen China
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To develop next-generation liquid-crystal (LC) materials for high-contrast FFS panels, various high-contrast LC (HRLC) materials are designed. Both lowering birefringence and increasing average elastic constant, FFS monitors with a contrast ratio of 2,800:1 and operation voltage of 6.5V are demonstrated.
P.177 - Effect of Metal BM as Inducer Electrode in Liquid-Crystal Display
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Wei Chang, Yunfei Wu, Rong Ma
Wuhan China Star Optoelectronics Technology Co., Ltd. Wuhan China
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A new simulation method to evaluate transmittance and response time using metal BM in a virtual reality display is proposed. The influence of pixel design and the voltage of metal BM ; LC type are discussed in detail. Distinguishing the contribution of the above factors on displays can further pave the way to improvement of LCD-based VR applications.
P.178 - Improve the Response Time of LCD and Expand Applications at Low Temperature
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YongLi Qian, Jian Zhao, Hong Zhang, Yu Zhang, XiaoHe Li
Shanghai Tianma Microelectronics Co. Ltd. Shanghai China
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NianQing Wan, ZhiDan Su
Shanghai Tianma Microelectronics Co. Ltd. China
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To improve lower temperature response speed of an LCD, an in-cell heater with specific sensor has been designed. The experimental results show that the inner sensor properly works between -50C~150C temperature range, and enables a gray-to-gray response time of 100 ms at -40C .
P.179 - Design of Pixel Electrode to Improve Image Sticking in FFS-LCD
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Peng Wang, Chenping Lan, Hongwei Zhao, Lan Zhu, Wenpeng Lin, Caijiao Zhong, Guochang Lai, Xianyan Yang
Xiamen Tianma Microelectronics Co., Ltd. Xiamen China
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Aiming at lowering long-term image-sticking issues, pixel electrode pitch, specifically its slit-angle design, is focused on to lower the flexo-electric influence. The optimized pixel-slit design enables reduction of image sticking and provides higher quality images for wider application of LCDs.
P.180 - Dynamic Invocation of Liquid-Crystal Overdrive Tables by Utilizing Temperature Sensor Integrated in the LCD Cell
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Qiujie Su, Dongchuan Chen, Wei Qin, Pengfei Hu, Xibin Shao, Pengtao Li, Yingmeng Miao, Xiaohan Tian, Jie Yu, Seungmin Lee, Yanping Liao, Rui Han, Qing Ma, Zhangtao Wang
BOE Technology Group Co., Ltd. Beijing China
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A newly designed in-cell temperature sensor enables accuracy of ±2C, utilizing Cu metal resistivity and showing its linear change with temperature. Different liquid-crystal over-drive voltage tables are set for each temperature section to optimize the response time of the liquid crystal for better picture quality. Also, the authors design a driving system that can call up the pre-set over-drive voltage tables automatically based on the temperature detected.
P.181 - Enhancing Bragg Reflection by Blending Ag Nanoparticles in Polymer-Stabilized Cholesteric Liquid Crystals
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Yubo Wang, Xing Zhang, Guangjie Lin, Yongfang Zhang, Yang Liu
Donghua University Shanghai China
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Ag nanoparticles are blended into polymer-stabilized cholesteric liquid crystals (PSCLCs) to enhance reflective intensity. A small amount of Ag nanoparticle doping in PSCLCs leads to an increase of reflective intensity up to 17%, but has little effect on the dynamic reflection variations.
P.264 - Fast-Response FFS LC Device with Multi-Rubbing Angle for VR Applications
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Shi-Rui Chen, Wing-Kit Choi
National Taiwan University Taipei Taiwan Roc
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New fast-response FFS LC devices with virtual walls using alternating alignment directions are proposed. These new devices offer significant response-speed improvement compared to conventional FFS LC devices; therefore they are attractive for VR applications.