Abstract

The residual direct current (RDC) almost always brings serious image sticking (IS) problems in LCDs and is mainly related to the liquid crystal (LC) and photoaligned polyimide. In this paper, we propose a novel method, to the best of our knowledge, to evaluate the RDC of the FFS-LCDs through an optical measurement system. By this means, the accumulation and release of the ions can be seen distinctly through the transmittance-time curves with the voltage regulation. Hence, it is helpful to compare and analyze the RDC problem of different displays. Moreover, this method possesses the advantage of high efficiency and simplicity in order to benefit the material design in photoaligned polyimide or the LC.

© 2024 Optica Publishing Group

Highly enhanced voltage holding property for low-frequency-driven fringe-field switching liquid crystal mode by charge-trapping effect of carbon-nanotube-doped surface

Jun-Chan Choi, Dong-Jin Lee, Min-Kyu Park, Ji-Sub Park, Joun-Ho Lee, Ji-Ho Baek, Hyun Chul Choi, and Hak-Rin Kim
Opt. Express 27(20) 29178-29195 (2019)

Color shift reduction of a multi-domain IPS-LCD using RGB-LED backlight

Ruibo Lu, Qi Hong, Zhibing Ge, and Shin-Tson Wu
Opt. Express 14(13) 6243-6252 (2006)

Flexoelectric in-plane switching (IPS) mode with ultra-high-transmittance, low-voltage, low-frequency, and a flicker-free image

MinSu Kim, Hyeong Gyun Ham, Han-Sol Choi, Philip J. Bos, Deng-Ke Yang, Joong Hee Lee, and Seung Hee Lee
Opt. Express 25(6) 5962-5971 (2017)

Random depolarization film design based on modulation transfer function measurements of displays with different pixel pitches

Shizuki Sasaki, Kenichiro Masaoka, and Yasuhiro Koike
Appl. Opt. 63(11) 2900-2905 (2024)

Electro-optical characteristics of an in-plane-switching liquid crystal cell with zero rubbing angle: dependence on the electrode structure

Tae-Hoon Choi, Yeongyu Choi, Jae-Hyeon Woo, Seung-Won Oh, and Tae-Hoon Yoon
Opt. Express 24(14) 15987-15996 (2016)