Reflector structure in a liquid crystal display having light...

Details Reflector structure in a liquid crystal display having light... Reflector structure in a liquid crystal display having light...

2006-02-14

2006-02-14

Ton, Toan (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S095000

Reexamination Certificate

active

06999146

ABSTRACT:
A reflector structure in a liquid crystal display having light condensing effect comprises mainly an active device substrate, a condenser having diffraction or refraction effect being formed above the substrate, a spacing layer being formed above and covering the condenser, and a reflective unit being formed above the spacing layer. The condenser can be a holographic diffraction unit, micro prisms or micro lens unit. It can be on a TFT substrate or a color filter. The color filter can be located at the same or opposite side with the TFT substrate. The spacing layer may be an over coat layer, a color filter, a color filter and an over coat layer on the color filter, or a substrate. The reflective unit also has various structures, reflective angles, and reflective effects. The invention utilizes the condenser to collect light. 60% to 95% of unused backlight is collected. The backlight gain is over 120% to 400%, thereby greatly saving the power consumption for the backlight source.

REFERENCES:
patent: 6195140 (2001-02-01), Kubo et al.
patent: 6359719 (2002-03-01), Ori
patent: 6819374 (2004-11-01), Sekiguchi

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