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POLARIZED BACKLIGHT FOR IMPROVED CONTRAST OF REVERSE IMAGE IN BACKLIT DISPLAYS THAT EMPLOY REFLECTIVE POLARIZERS

IP.com Disclosure Number: IPCOM000009759D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2002-Sep-17

Publishing Venue

Motorola

Related People

Authors:
Jon L. Schindler George T. Valliath

Abstract

Abstract - Liquid crystal displays constructed with reflective polarizer films suffer from poor CODtrast in backlit mode, due to light leakage of the undesired polarization. A linear polarizer film, placed between the backlight and the reflective polarizer, would improve the contrast in backlit mode by suppressing tWs leakage. The improved contrast performance would come at the expense of overall display luminance. Increasing the light output from the backlight would overcome this drawback.