Examination and optimizing of a liquid crystal display used as spatial light modulator concerning the fringing field effect

2012 ◽  
Author(s):  
Christian Lingel ◽  
Tobias Haist ◽  
Wolfgang Osten
Keyword(s):  
Liquid Crystal ◽  
Field Effect ◽  
Spatial Light Modulator ◽  
Liquid Crystal Display ◽  
Light Modulator ◽  
Fringing Field ◽  
Fringing Field Effect

scholarly journals Simple method to evaluate the pixel crosstalk caused by fringing field effect in liquid-crystal spatial light modulators

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Ignacio Moreno ◽  
María Del Mar Sánchez-López ◽  
Jeffrey A. Davis ◽  
Don M. Cottrell
Keyword(s):  
Liquid Crystal ◽  
Diffraction Efficiency ◽  
Field Effect ◽  
Spatial Light Modulators ◽  
Physical Parameters ◽  
Light Modulator ◽  
Simple Method ◽  
Fringing Field ◽  
Fringing Field Effect ◽  
The Impact

AbstractIn this work we provide a simple experimental method to measure and evaluate the pixel crosstalk in phase-only liquid-crystal displays caused by the fringing field effect. The technique is a reverse engineering method that does not require information about the microscopic physical parameters of the liquid-crystal material or details of the fabrication and electronics of the display. Instead, it is based on the overall effect on the diffraction efficiency of displayed binary phase gratings as a function of the addressed gray level. We show how the efficiency of the zero (DC) and first diffraction orders provides valuable information enough to identify and quantify the pixel crosstalk. The technique is demonstrated with a modern phase-only liquid-crystal on silicon (LCOS) spatial light modulator (SLM), illustrating the limitations that this effect imposes to the spatial resolution of the device and providing quantitative measurement of the impact on the diffraction efficiency.

Fringing Field Effect of the Liquid-Crystal-on-Silicon Devices

2002 ◽  
Vol 41 (Part 1, No. 7A) ◽  
pp. 4577-4585 ◽  
Author(s):  
Kuan-Hsu Fan Chiang ◽  
Shin-Tson Wu ◽  
Shu-Hsia Chen
Keyword(s):  
Liquid Crystal ◽  
Field Effect ◽  
Silicon Devices ◽  
Fringing Field ◽  
Liquid Crystal On Silicon ◽  
Fringing Field Effect

A Visible Near-Infrared Hadamard Transform Spectrometer Based on a Liquid Crystal Spatial Light Modulator Array: A New Approach in Spectrometry

1987 ◽  
Vol 41 (5) ◽  
pp. 727-734 ◽  
Author(s):  
D. C. Tilotta ◽  
R. M. Hammaker ◽  
W. G. Fateley
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Near Infrared ◽  
Liquid Crystal Display ◽  
Emission Spectra ◽  
Infrared Region ◽  
Hadamard Transform ◽  
Light Modulator ◽  
New Approach ◽  
Single Detector

A stationary Hadamard encodement mask has been designed from a liquid crystal display. This mask, when properly installed and positioned in a dispersive instrument, allows the selected Hadamard encoded spectral elements to be focused on a single detector. Discussion of the advantages derived by this technique is presented. Several emission spectra in the visible and near-infrared region demonstrate the usefulness of the Hadamard transform technique. This novel spectrometer can provide a no-moving-parts spectroscopy for future spectral applications.

On the fringing-field effect in liquid-crystal beam-steering devices

2004 ◽  
Vol 43 (1) ◽  
pp. 11 ◽  
Author(s):  
Boris Apter ◽  
Uzi Efron ◽  
Eldad Bahat-Treidel
Keyword(s):  
Liquid Crystal ◽  
Field Effect ◽  
Beam Steering ◽  
Fringing Field ◽  
Fringing Field Effect
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