Backlight unit having reflective plate with reflection dots

Details Backlight unit having reflective plate with reflection dots Backlight unit having reflective plate with reflection dots

2005-08-09

2005-08-09

Husar, Stephen (Department: 2875)

Illumination

Revolving

C362S026000

Reexamination Certificate

active

06926420

ABSTRACT:
The present invention provides a backlight unit (30) for a liquid crystal display. The backlight unit includes a light source (5), a light guide plate (6), a reflective plate (7), a diffusing plate (8) and a prism plate (9). The light guide plate includes a light incidence surface (61) adjacent to the light source. The reflective plate has a top surface (73) opposed to the light guide plate. A plurality of light reflection dots (74) are arranged on the top surface of the reflective plate. The light emitted from the backlight unit illuminates a panel, such as a liquid crystal panel, to display images.

REFERENCES:
patent: 5283673 (1994-02-01), Murase et al.
patent: 5730518 (1998-03-01), Kashima et al.
patent: 6151168 (2000-11-01), Goering et al.
patent: 6447136 (2002-09-01), Liu et al.

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