Direct backlight module

Details Direct backlight module Direct backlight module

2006-11-28

2006-11-28

O'Shea, Sandra (Department: 2875)

Illumination

Illuminated scale or dial

Internal light source

C362S026000, C362S027000, C362S600000

Reexamination Certificate

active

07140743

ABSTRACT:
A direct backlight module has a light guide plate, a plurality of lamp tubes, a reflecting plate and a frame. The light guide plate has a upper surface and a lower surface, and at least one surface of the light guide plate is coated with an ink layer. The lamp tubes are located below the light guide plate. The reflection plate is located below the lamp tubes. The frame covers the reflecting plate, lamp tubes and light guide plate. The ink layer contains a plurality of diffusing granules for diffusing lights to produce uniform lights.

REFERENCES:
patent: 5128783 (1992-07-01), Abileah et al.
patent: 5386347 (1995-01-01), Matsumoto
patent: 6577361 (2003-06-01), Sekiguchi et al.
patent: 7-716794 (1995-07-01), None
patent: 2001-22285 (2001-01-01), None
Patent Abstracts of Japan of JP 2001-22285 dated Jan. 26, 2001.
Patent Abstracts of Japan of JP 7-176794 dated Jul. 14, 1995.

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