Backlight unit

Details Backlight unit Backlight unit

2007-06-12

2007-06-12

Ward, John Anthony (Department: 2875)

Illumination

Elongated source light unit or support

Plural sources or supports therefor

C362S224000, C362S219000, C362S330000, C362S346000, C362S560000

Reexamination Certificate

active

10951780

ABSTRACT:
A backlight unit, suitable for a large sized LCD device, includes a plurality of fluorescent lamps alternately provided under an LCD panel in at least two parts, formed by dividing a light-emitting surface. Adjacent end parts of the fluorescent lamps are overlapped partially. Each fluorescent lamp is shorter than a length (e.g., horizontal dimension) of the light-emitting surface. A reflective plate is provided below the plurality of fluorescent lamps, and has a rugged part underlying the overlapped portion of the fluorescent lamps. Alternatively or in addition, a light-scattering pattern can be provided in a portion of a light-scattering means, over the overlapped portion of the fluorescent lamps. The rugged part and/or light-scattering pattern prevents obscure rays in the overlapped portion and improves a uniformity of luminance of the backlight unit.

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patent: 2003-0015534 (2003-02-01), None

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