A novel method of temperature compensation for multiplexed liquid crystal displays

1978 ◽  
Vol 14 (14) ◽  
pp. 430 ◽  
Author(s):  
C. Hilsum ◽  
R.J. Holden ◽  
E.P. Raynes
Keyword(s):  
Liquid Crystal ◽  
Temperature Compensation ◽  
Liquid Crystal Displays ◽  
Novel Method

A Novel Method to Accurately Predict Color Information of Liquid Crystal Displays With Light Leakage From Black Pixels

2013 ◽  
Vol 9 (3) ◽  
pp. 162-169 ◽  
Author(s):  
Jong-Man Kim ◽  
Jongbin Kim ◽  
Youngmin Cho ◽  
Kwangjoon Kim ◽  
Seung-Woo Lee
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Displays ◽  
Color Information ◽  
Novel Method

scholarly journals Liquid Crystal Displays with Variable Viewing Angles Using Electric-Field-Driven Liquid Crystal Lenses as Diffusers

2020 ◽  
Vol 10 (2) ◽  
pp. 667
Author(s):  
Seung-Chul Lee ◽  
Taehyeon Kim ◽  
Woo-Sang Park
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Liquid Crystal Displays ◽  
Light Distribution ◽  
Viewing Angle ◽  
Wide Viewing Angle ◽  
Narrow View ◽  
Novel Method ◽  
Taguchi’S Design Of Experiments ◽  
The Ideal

We propose a novel method for appropriately controlling the luminance distribution of liquid crystal displays (LCDs) for different usage environments by using electric-field-driven liquid crystal (ELC) lenses. The LCD systems are composed of quasi-collimated backlights (QCBLs), LC panels, and ELC lenses that are used as diffusers. To achieve a wide viewing angle, light is diffused with the ELC lenses by controlling its retardation with the voltage applied to the electrodes. For private use, a narrow viewing angle is achieved by turning the ELC lenses off so that the collimated light from the QCBLs passes directly through the liquid-crystal layer of the ELC lens and travels without diffusion. To validate the proposed method, we simulated the luminance distributions of the wide-view and narrow-view modes by using a finite difference method (FDM) and Taguchi’s design of experiments method. The simulation results show that the light distribution of the wide-view mode was 84.3% similar to the ideal Lambertian distribution and was wider than that of IPS-LCDs with wide viewing angle characteristics. In addition, the light distribution of the narrow-view mode had a full width at half maximum of 7°. The luminance of the exiting light at viewing angles of 20° and above was calculated to be close to 0.

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