Photoaligned Ferroelectric Liquid Crystal Passive Matrix Display with Memorized Gray Scale

Abstract

A new concept of a passive matrix ferroelectric liquid crystal display (FLCD) with a memorized gray scale is proposed. The physical origin of the gray scale in ferroelectric liquid crystal displays is considered. The criterion of reliable bistability is derived depending on the FLC hysteretic behavior in an electric field. The frequency and temperature dependences of the FLC hysteretic loop are discussed. A new approach for multiplex electronic addressing of the FLCD gray scale is given. A passively addressed 64×64 FLCD based on the photoalignment technique is developed. New applications of passively addressed FLCDs with a memorized gray scale are envisaged.

P‐144: Electrooptic Response of FLC: Effect of Alignment Materials

“…Asymmetric boundary conditions were used for modeling and manufacturing FLCDs [7], shown in Figure 1. In this approach, only one indium tin oxide (ITO) surface of an FLC cell was covered with a photoaligning substance, while the other one was covered with 1.5 um spacers.…”

Promising Applications and Technologies of Liquid Crystal Displays and Photonics Devices

“…Однако в промышленных технологиях эти эффекты не используются, хотя в отдельных прототипах многие недостатки этой фазы преодолеваются: бездефектный объем СЭЖК, формирование града-ций серого, восстановление изображения после механического воздействия на СЭЖК ячейку и др. [12,13]. Более надежным может оказаться другой сегмент рынка, в котором быстродействие СЭЖК может обеспечить их использование в очках для стереотелевидения (см.…”

Electro-Optical Modulation in Planar Aligned Ferroelectric Liquid Crystals with Subwavelength Helix Pitch

“…1, b, c), since in this case the ITO-electrode in each pixel of the matrix should be continuous rather than striped [12,13]. However, the optical axis PA, which sweeps in XZ plane (Fig.…”