Sharp Kabushiki Kaisha Corporation

Henning Molsen

Martin David Tillin

Tomoaki Kuratate

A transflective liquid crystal display () comprises a liquid crystal cell () disposed between a front substrate () and a rear substrate (), a front polarizer () located in front of the front substrate () and a rear polarizer () located behind the rear substrate (), a front retarder () located between the front substrate () and the front polarizer (), a rear retarder () located between the rear substrate () and the rear polarizer (), and a light source () located behind the rear polarizer (). A transflective display having a number of differently colored sequentially flashing backlights is also provided.

Transflective liquid crystal displays with sequentially flashing light sources

Optical element, a method of making a display device and a display device comprising an optical element

This invention relates to a scattering transflector wherein the reflectivity of a surface of the transflector is dependent on the angle at which light is incident on the surface of the transflector. This invention also relates to a display device comprising an optical modulating element and the foregoing scattering transflector.

Transflector, and a transflective display device

A switchable liquid crystal device, for instance for use as a reflective display, includes a cell containing a helical polymer network and a nematic liquid crystal. Electrodes are provided for applying a field across the cell so as to switch between different optical states. In a reflective state, the cell reflects incident light within a waveband which is relatively insensitive to temperature variations. The device is formed by filling the cell with the liquid crystal and polymer precursor material and then cross-linking or polymerising, for instance by photopolymerisation, the precursor material to form the helical polymer network.

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Lueneburg, Germany

Henning Molsen