scholarly journals The Effect of Operating Temperature on the Response Time of Optically Driven Liquid Crystal Displays

Crystals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 626
Author(s):  
Vladimir Chigrinov ◽  
Jiatong Sun ◽  
Mikhail M. Kuznetsov ◽  
Victor Belyaev ◽  
Denis Chausov
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Room Temperature ◽  
Easy Axis ◽  
Operating Temperature ◽  
Liquid Crystal Displays ◽  
Ultra Low Power ◽  
Clearing Point ◽  
Display Function ◽  
Rotational Viscosity

Optically driven liquid crystal displays (ODLCDs) realizes their display function by tuning the easy axis of liquid crystal (LC) molecules under polarized blue light, which has been utilized in some optical devices due to its advantages of ultra-low power consumption. However, a big issue arises in response time, i.e., the rewriting time of the ODLCD. The rewriting time of ODLCD samples was studied. Rotational viscosity plays a very important role for decreasing the rewriting time of the ODLCD. The operating temperature was changed from room temperature to nearly clearing point, the rewriting time decreased a lot as the rotational viscosity decreased for the five different kinds of the LCs. The rewriting time can be decreased from 5.2 s to 0.2 s around 25 times for the LC N4.

63-1: High Transmittance and Fast Response Time Liquid Crystal Displays Using A Novel Electrode Pattern

2016 ◽  
Vol 47 (1) ◽  
pp. 851-853 ◽  
Author(s):  
Ankai Ling ◽  
Jianqun Chen ◽  
Ling Wu ◽  
Huimin Xie ◽  
Poping Shen ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Liquid Crystal Displays ◽  
Fast Response ◽  
Fast Response Time

Improvement of the Response Time of Super Thin Film Transistor Liquid Crystal Displays by Using a Backlight System

2003 ◽  
Vol 42 (Part 1, No. 4A) ◽  
pp. 1623-1627 ◽  
Author(s):  
Jun-ichi Hirakata ◽  
Akira Shingai ◽  
Kikuo Ono ◽  
Kazuyoshi Kawabe ◽  
Tsutomu Furuhashi
Keyword(s):  
Thin Film ◽  
Liquid Crystal ◽  
Response Time ◽  
Thin Film Transistor ◽  
Liquid Crystal Displays

Reflective Chiral-Homeotropic Liquid Crystal Displays

2011 ◽  
Vol 181-182 ◽  
pp. 281-284
Author(s):  
Zhi Ren ◽  
Song Tao Li ◽  
Xi Pai Liu
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Parameter Space ◽  
Contrast Ratio ◽  
Dynamic Parameter ◽  
Liquid Crystal Displays ◽  
Fast Response ◽  
High Contrast ◽  
Fast Response Time ◽  
Space Method

The performance of a reflective chiral-homeotropic (R-CH) liquid crystal (LC) is simulated by the dynamic parameter space method. The normally black reflective chiral-homeotropic display shows weak color dispersion, high contrast ratio, and fast response time.

30.3: Master Parameter Governing the Response Time of Reflective Cholesteric Liquid Crystal Displays

2011 ◽  
Vol 42 (1) ◽  
pp. 400-403 ◽  
Author(s):  
Young-Cheol Yang ◽  
Rafael S. Zola ◽  
Yue Cui ◽  
Deng-Ke Yang ◽  
Heng-Yin Chen ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Cholesteric Liquid Crystal ◽  
Liquid Crystal Displays

Effect of bias in ferroelectric-antiferroelectric relaxation

2009 ◽  
Vol 17 (2) ◽  
Author(s):  
M. Geday ◽  
D. Medialdea ◽  
B. Cerrolaza ◽  
N. Bennis ◽  
X. Quintana ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Measured Data ◽  
Antiferroelectric Phase ◽  
Bias Level ◽  
Rotational Viscosity ◽  
Video Frequency ◽  
Reset Time ◽  
Intensity Decay

AbstractThe ferroelectric-antiferroelectric transition in greyscale generation of antiferroelectric liquid crystal displays (AFLC) is a heterogeneous process. The process has been described as the growth of finger-like domains [1]. We have previously studied the ferroelectric-antiferroelectric phase transition, relaxation that follows the data pulse in surface stabilized asymmetric antiferroelectric liquid crystal displays using biasless video frequency waveforms [2]. This relaxation involves an intensity decay of the light transmitted by a pixel and depends on several parameters such as surface stabilization, rotational viscosity of the AFLC, magnitude of the data pulse, and bias voltage.The usual multiplexed driving of AFLC displays leads to long-term stabilisation of the grey levels induced by the data pulses within the selection time. However, depending on the bias level, alternative greyscale mechanisms may be obtained by allowing the grey levels to decay during the frametime. These greyscales may be advantageous in some instances since they improve the dynamic response of the AFLC device and reduce the reset time of the waveform.In this study we extend the previous work to include the effect of bias. We present the measured data, in terms of growth pattern and speed and present an extension of the previously model on order to explain the results.

scholarly journals Low temperature effects on the response time of liquid crystal displays

2009 ◽  
Vol 94 (7) ◽  
pp. 071112 ◽  
Author(s):  
Linghui Rao ◽  
Sebastian Gauza ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Low Temperature ◽  
Response Time ◽  
Temperature Effects ◽  
Liquid Crystal Displays
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