Two-domain twisted nematic and tilted homeotropic liquid crystal displays for active matrix applications

2002 ◽  
Author(s):  
K.H. Yang
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Active Matrix ◽  
Twisted Nematic

Physical Model of Pixels in Twisted Nematic Active-Matrix Liquid Crystal Displays

2015 ◽  
Vol 62 (10) ◽  
pp. 3308-3313 ◽  
Author(s):  
Jong-Man Kim ◽  
Seung-Hyuck Lee ◽  
Dong-Hwan Jeon ◽  
Seung-Woo Lee
Keyword(s):  
Liquid Crystal ◽  
Physical Model ◽  
Liquid Crystal Displays ◽  
Active Matrix ◽  
Twisted Nematic ◽  
Matrix Liquid

scholarly journals High-Contrast and Scattering-Type Transflective Liquid Crystal Displays Based on Polymer-Network Liquid Crystals

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 739 ◽  
Author(s):  
Cheng-Kai Liu ◽  
Wei-Hsuan Chen ◽  
Chung-Yu Li ◽  
Ko-Ting Cheng
Keyword(s):  
Liquid Crystal ◽  
Polymer Network ◽  
Liquid Crystal Displays ◽  
Quarter Wave Plate ◽  
High Contrast ◽  
Trade Off ◽  
Twisted Nematic ◽  
Quarter Wave ◽  
The Common ◽  
Linear Polarizer

The methods to enhance contrast ratios (CRs) in scattering-type transflective liquid crystal displays (ST-TRLCDs) based on polymer-network liquid crystal (PNLC) cells are investigated. Two configurations of ST-TRLCDs are studied and are compared with the common ST-TRLCDs. According to the comparisons, CRs are effectively enhanced by assembling a linear polarizer at the suitable position to achieve better dark states in the transmissive and reflective modes of the reported ST-TRLCDs with the optimized configuration, and its main trade-off is the loss of brightness in the reflective modes. The PNLC cell, which works as an electrically switchable polarizer herein, can be a PN-90° twisted nematic LC (PN-90° TNLC) cell or a homogeneous PNLC (H-PNLC) cell. The optoelectric properties of PN-90° TNLC and those of H-PNLC cells are compared in detail, and the results determine that the ST-TRLCD with the optimized configuration using an H-PNLC cell can achieve the highest CR. Moreover, no quarter-wave plate is used in the ST-TRLCD with the optimized configuration, so a parallax problem caused by QWPs can be solved. Other methods for enhancing the CRs of the ST-TRLCDs are also discussed.

Analytical Simulation of Electrooptical Performance of Multidomain Twisted Nematic Liquid Crystal Displays

1995 ◽  
Vol 34 (Part 1, No. 5A) ◽  
pp. 2396-2403 ◽  
Author(s):  
Takashi Sugiyama ◽  
Toru Hashimoto ◽  
Kazuhisa Katoh ◽  
Yasufumi Iimura ◽  
ShunsukeKobayashi
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Analytical Simulation ◽  
Twisted Nematic ◽  
Twisted Nematic Liquid Crystal

Illuminators based on composite LEDs for multifunctional high-luminance active-matrix liquid-crystal displays

2011 ◽  
Vol 78 (7) ◽  
pp. 444 ◽  
Author(s):  
V. A. Bol’shukhin ◽  
V. S. Ilyasov ◽  
N. P. Soshchin ◽  
V. N. Ulasyuk
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
High Luminance ◽  
Active Matrix ◽  
Matrix Liquid
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