Application of computer simulation to improve the optical performance of liquid crystal displays

Shui-Chih A. Lien

doi:10.1117/12.143973

1 August 1993 Application of computer simulation to improve the optical performance of liquid crystal displays

Shui-Chih A. Lien

Author Affiliations +

Optical Engineering, Vol. 32, Issue 8, (August 1993). https://doi.org/10.1117/12.143973

Abstract

Modeling of a liquid crystal display (LCD) includes two parts: one is the calculation of the LC director deformation profile inside the cell and the other is the LCD optics computation. For the LC director deformation profile calculation, it is usually assumed that all the LC molecules within a pixel respond together uniformly to a driving voltage. This one-dimensional (l-D) simulation is a good approximation for most cases. However, due to the finite size of the pixel, the pixel fringe field may drive the LC molecules near the pixel edge to tilt in a direction different from those in the center of the pixel. To understand the detailed LC director structures inside the pixel and their effect on the display performances (especially for the small pixel), the two-dimensional (2-D) or sometimes the three-dimensional (3-D) simulation is required. The l-D, 2-D, and 3-D simulations of the LC director deformation profile are reviewed. For the LCD optics, besides the 4 x 4 matrix method, an alternative method is also discussed. Finally, examples using the 1 -D, 2-D, and 3-D LCD simulations for improving the display optical performances are illustrated.

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Shui-Chih A. Lien "Application of computer simulation to improve the optical performance of liquid crystal displays," Optical Engineering 32(8), (1 August 1993). https://doi.org/10.1117/12.143973

Published: 1 August 1993

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