Backlight unit uniformly illuminating object regardless of...

Details Backlight unit uniformly illuminating object regardless of... Backlight unit uniformly illuminating object regardless of...

2007-02-20

2007-02-20

Ward, John Anthony (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S561000, C362S607000

Reexamination Certificate

active

10205367

ABSTRACT:
A liquid crystal display panel device has a backlight unit for illuminating the reverse surface of a liquid crystal display panel, and the backlight unit includes a diffusion plate, a diffusion sheet adhered to one of the major surfaces of the diffusion plate, a lamp house and a moisture-proof sheet inserted between the other surface of the diffusion plate and the lamp house; the moisture-proof sheet prevents the diffusion plate from vaporization of water contained in the diffusion plate, and the diffusion plate is not warped; the diffusion plate maintains the initial shape immediately after the assemblage into the backlight unit so that the liquid crystal display panel is continuously uniformly illuminated by the backlight unit.

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patent: 6313891 (2001-11-01), Nagakubo et al.
patent: 2002/0113924 (2002-08-01), Saito et al.
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patent: 6-54038 (1994-07-01), None
patent: EP0733927 (1996-09-01), None
patent: EP0891119 (1999-01-01), None
patent: 11-223812 (1999-08-01), None
patent: 11223812 (1999-08-01), None
Korean Office Action dated Jun. 29, 2004 with a partial English translation.
Taiwanese Office Action dated Sep. 15, 2003 with Japanese and partial English translations.

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