Extraordinarily high-contrast and wide-view liquid-crystal displays

Extraordinarily wide-view circular polarizers for liquid crystal displays.

A new broadband wide-view circular polarizer is proposed for high transmittance multi-domain vertical-alignment liquid crystal displays (MVA LCDs). This configuration only requires one biaxial plate in the conventional circular polarizer. The optimal film parameters are obtained analytically through spherical trigonometric method on the Poincaré sphere and through computer-aided parameter searc...

Negative A-plates for broadband wide-view liquid crystal displays

High contrast ratio and wide viewing angle are critical requirements for direct view liquid crystal displays LCDs . Various optical compensation schemes with phase-matched films have been developed to widen the viewing angle of LCDs. A-plate, whose optic axis is located in the plane parallel to film surface, has been widely used in wide-view LCDs. Although positive and negative A-plates are usu...

High Speed and Wide Viewing Angle Liquid Crystal Displays

Liquid Crystal Materials and Liquid Crystal Displays

Since the early 1970s, three major prerequisites have brought the success of the liquid crystal display (LCD) technology to its key role of today. Namely, the discovery of electro-optical field-effects on which the displays are based, the successful search for liquid crystals (LCs) with material properties that meet the complex requirements of electro-optical effects and render the effects appl...

Color and Luminance Management for High-Resolution Liquid-Crystal Displays

A new method of color management is described which takes advantage of the high pixel density achievable with TFTLCDs. In this method, a calibration 10-bit look-up-table can be loaded into the monitor and implemented as a 2x2 spatial dither block to provide a 10-bit color palette for 8-bit color drive. Other subpixel dithering techniques are also described for monochrome and color high-resoluti...