Advanced gray‐scale compensator for TN‐LCDs for avionics applications

Abstract

Abstract— The gray‐scale and contrast‐viewing‐angle deficiencies of normally white TN‐LCDs must be overcome for the device to be utilized in high‐performance avionics display applications. A compensator that enhances the contrast and gray scale of normally white TN‐LCDs over a wide range of viewing angles is described. The compensator includes a unique biaxial element with an obliquely oriented principal optical axis. The compensator's design, fabrication, modeled performance, and performance measured on an avionics display system are presented.

Evaluation of Alignment of Nematic Liquid Crystal Thin Film by Spectroscopic Ellipsometry

“…6) Therefore, it is not clear whether continuum theory is applicable to LC thin layer whose thickness is several times as thin as the molecular size. In the near future, further thinner LC device (e.g., narrow gap liquid crystal display (LCD), 7) optical compensation film, 8) etc.) will be realized to achieve the better performance LCDs.…”

P‐75: Two Crossed A‐Plates as an Alternative to a Negative C‐Plate

“…The use of crossed positive retarders instead of negative retarder has been previously suggested [1][2][3] . However, no experimental data has been presented to show similarity in optical properties between crossed A-plates and negative C-plate.…”