Low power liquid crystal display backlight

Details Low power liquid crystal display backlight Low power liquid crystal display backlight

1988-10-05

1990-04-10

Miller, Stanley D.

350339D, 350345, G02F 1133

Patent

active

049154788

ABSTRACT:
A liquid crystal display panel having a backlight for providing high brigess, uniformity of illumination intensity, high efficiency, and long battery life, and which can be manufactured at a low cost. The display device includes a liquid crystal display panel, a light source for illuminating the liquid crystal panel, a light passage member which can be formed of a transparent material disposed between the liquid crystal panel and the light source. The light source inlet side of the light passage member is formed with a recess with the thickness being reduced at the region diametrically opposed to the light source. A light reflecting member reflects light from the light source. Within the photoconductor, two or more of the wedged shaped photo conductor can be used for increased area of coverage.

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patent: 4415236 (1983-11-01), Perregaux
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patent: 4487481 (1984-12-01), Suzawa
patent: 4630895 (1986-12-01), Abdala, Jr. et al.
patent: 4641925 (1987-02-01), Gasparaitis et al.
patent: 4659183 (1987-04-01), Suzawa

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