Mc Gardner

3D Modelling of High Resolution Devices

An LCOS device has been simulated for both holographic and image display applications. A chequerboard pattern of on-off voltages has been applied in order to represent the highest supported spatial resolution. The accuracy with which this pattern is reproduced is presented as the pixel area is altered. It was found desirable to use a liquid crystal surface alignment conformal, as opposed to oblique, to the pixel grid in order to achieve sharp transitions between on and off pixels.

Experimental verification of a computer model for optimizing a liquid crystal display for spatial phase modulation

We experimentally verify a modelled prediction of optimum polarizer and analyser configuration for LCD phase modulation while maintaining high transmission and restricted intensity modulation depth.

High Efficiency Transflective Nematic LC Cell Using Three Director States

A new transflective nematic liquid crystal display is presented. Unlike other transflective cells, almost the entire device area is potentially available for either transmission of backlighting or reflection of ambient illumination, providing efficient use of available light for the desired application. The single cell-gap device does not require patterned alignment layers or a patterned retarder but employs planar and interdigitated electrodes. The number of electrical connections required makes the cell most suitable for low information content displays. Simulations are used to make comparisons with existing dual-gap and single-gap patterned alignment designs.

Experimental verification of a computer model for optimizing a liquid crystal TV for spatial phase modulation

We experimentally verified a modeled prediction of optimum polarizer and analyzer configuration for LCTV phase modulation while maintaining high transmission and restricted intensity modulation depth.