Display Week Home Page

Session and scheduling information are listed below. Select a session from the list and press "Go" to view the abstracts for that session.

Session 31 :
Viewing Angle Control and Privacy
Liquid Crystal Technology

Wednesday, May 15 / 09:00 AM   - 10:20 AM / San Jose Convention Center, LL20BC

Chair:
Matthew Sousa, 3M, Saint Paul, MN US

Co-Chair:
Yukito Saitoh, FUJIFILM Corporation, Minamiashigara-shi, Japan

31.1 - Invited Paper: C-PS-VA and SA-VA: Technologies for Next-Generation TV LCDs (9:00 AM - 9:20 AM)
  • Fred Chen, Ray Chou, Susan Chuang
    Merck Performance Materials Ltd. Taoyuan Taiwan Roc

  • Lawrence Huang, Lynn Guo, Dora Li
    Merck Display Materials Co., Ltd. Shanghai China


  • Chiral polymer stabilized vertical alignment (C-PS-VA) technology enables up to a 10% increase in transmittance, leading to potentially lower power consumption of final devices and energy saving compared to conventional polymer stabilized vertical alignment (PS-VA) technology. Self-aligned vertical alignment (SA-VA) enables the simplification of the process to achieve energy saving by eliminating high-temperature baking. This paper summarizes recent developments in LC mixtures for C-PS-VA and SA-VA and highlights the robustness and high performance that can be realized using both the authors' reactive mesogen (RM) materials and innovative LC materials. 
05/15/2024 9:00 AM 05/15/2024 9:20 AM America/Los_Angeles C-PS-VA and SA-VA: Technologies for Next-Generation TV LCDs Chiral polymer stabilized vertical alignment (C-PS-VA) technology enables up to a 10% increase in transmittance, leading to potentially lower power consumption of final devices and energy saving compared to conventional polymer stabilized vertical alignment (PS-VA) technology. Self-aligned vertical alignment (SA-VA) enables the simplification of the process to achieve energy saving by eliminating high-temperature baking. This paper summarizes recent developments in LC mixtures for C-PS-VA and SA-VA and highlights the robustness and high performance that can be realized using both the authors' reactive mesogen (RM) materials and innovative LC materials.  San Jose McEnery Convention Center LL20BC Lawrence Huang, Lynn Guo, Dora Li
31.2 - Switchable-View Control Using a Vertically Aligned Polarizer and Polarization Control (9:20 AM - 9:40 AM)
  • AndrĂ© Heber
    siOPTICA GmbH Jena Germany


  • Combining a vertically aligned polarizer and a liquid-crystal cell, a switchable-view control filter is implemented that on demand changes the transmission for designated view-angle areas between a high transmission and low transmission state, referred to as private and public modes of operation. The feasibility of the switchable-view control concept is confirmed via simulations and measurements.
05/15/2024 9:20 AM 05/15/2024 9:40 AM America/Los_Angeles Switchable-View Control Using a Vertically Aligned Polarizer and Polarization Control Combining a vertically aligned polarizer and a liquid-crystal cell, a switchable-view control filter is implemented that on demand changes the transmission for designated view-angle areas between a high transmission and low transmission state, referred to as private and public modes of operation. The feasibility of the switchable-view control concept is confirmed via simulations and measurements. San Jose McEnery Convention Center LL20BC André Heber
31.3 - Invited Paper: Novel Chiral VA Liquid-Crystal Display Mode Based on Photoalignment (9:40 AM - 10:00 AM)
  • Fan Li, Ju Ren, Pan-qiang Wu, Lin Li, Yong Zhang, Jian-long Kou, Peng Zhou, Hai-bin Han
    Chengdu BOE Display Sci-tech Co., Ltd. Chengdu China


  • By reducing the proportion of dark lines, and improving the transmittance at the dark line with chiral liquid crystal, the authors have successfully developed a novel chiral VA mode. The transmittance of 4K displays can be increased by 14%, and even more for 8K displays.
05/15/2024 9:40 AM 05/15/2024 10:00 AM America/Los_Angeles Novel Chiral VA Liquid-Crystal Display Mode Based on Photoalignment By reducing the proportion of dark lines, and improving the transmittance at the dark line with chiral liquid crystal, the authors have successfully developed a novel chiral VA mode. The transmittance of 4K displays can be increased by 14%, and even more for 8K displays. San Jose McEnery Convention Center LL20BC Fan Li, Ju Ren, Pan-qiang Wu, Lin Li, Yong Zhang, Jian-long Kou, Peng Zhou, Hai-bin Han
31.4 - Curved and Fast Response Time Vertical-Alignment (VA) Liquid-Crystal Gaming Display Development (10:00 AM - 10:20 AM)
  • An-Thung Cho, Zhi-peng He
    Chuzhou HKC Optoelectronics Technology Co., Ltd. Chuzhou China

  • Gui-qing Du, Chao Wei, James Hsu, Wade Chen
    Chuzhou HKC Optoelectronics Technology Co., Ltd. ChuZhou China


  • A fast response scheme for a high-definition curved VA LCD panel is proposed. A curved panel with different PI on the array and CF substrate to obtain different pretilt angle is made. Fast-response liquid crystal (LC) and larger storage capacitance are used on the curved panel. Fast response time without over driving is obtained (GTGavg= 6.2ms; GTGmax =9.1ms).
05/15/2024 10:00 AM 05/15/2024 10:20 AM America/Los_Angeles Curved and Fast Response Time Vertical-Alignment (VA) Liquid-Crystal Gaming Display Development A fast response scheme for a high-definition curved VA LCD panel is proposed. A curved panel with different PI on the array and CF substrate to obtain different pretilt angle is made. Fast-response liquid crystal (LC) and larger storage capacitance are used on the curved panel. Fast response time without over driving is obtained (GTGavg= 6.2ms; GTGmax =9.1ms). San Jose McEnery Convention Center LL20BC Gui-qing Du, Chao Wei, James Hsu, Wade Chen