3m Innovative Properties Company

Polaroid Corporation

John C Branca

Philip J Ralli

William K Smyth

Giorgio Trapani

John J Cael

Michael M Wenyon

James N Gordon

William Pugh

David M Foresyth

Atsushi Suzuki

A liquid crystal display structure includes a liquid crystal display cell having a front surface and a back surface. One or more intrinsic polarizers lacking protective coatings thereon, such as K-type polarizers and thin KE polarizer sheets, are disposed adjacent to the front and back surfaces of the liquid crystal display cell. Alternatively, thinly cladded or encased iodine polarizers are disposed adjacent to the front and back surfaces of the liquid crystal display cell. The liquid crystal display structure may be used in conjunction with other optical display elements to enhance the brightness and contrast of the liquid crystal display.

Polarizers for use with liquid crystal displays

Reflective image-providing displays illuminated with chromatically-adjusted holographically diffused light are provided. In one particular and preferred embodiment, a liquid crystal display component is presented comprising a liquid crystal display element backed with a reflective transmission holographic diffuser. Chromatic adjustment is effected by the inclusion in said liquid crystal display component of a compensatory filter layer of relatively low density designed to restore the ambient color balance of input light, the balance being otherwise upset by transit through said liquid crystal display element. Achromatically illuminated images of good contrast are displayed and viewed from the liquid crystal display component under ambient lighting conditions.

Chromatically-adjusted holographically illuminated image-providing

Growing community of inventors

Franklin, MA, United States of America

John C Branca