Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

2008-08-26

2011-11-29

Payne, Sharon (Department: 2875)

Illumination

Display backlight

C362S606000, C362S607000, C362S612000, C362S613000, C362S617000, C362S623000

Reexamination Certificate

active

08066393

ABSTRACT:
In a backlight which arranges light emitting diodes on a side surface of a light guide plate, irregularities of radiation light from the backlight can be decreased. In a liquid crystal display device having a backlight which radiates light to a liquid crystal panel, LEDs which constitute a light emitting element are mounted on a light guide plate formed on the backlight, and teardrop-shaped lenses are formed on a light radiation surface of the light guide plate. By changing the advancing directions of lights radiated from the light emitting element using the teardrop-shaped lenses, it is possible to decrease irregularities of a planar light source by scattering the radiation lights from the light guide plate.

REFERENCES:
patent: 5349503 (1994-09-01), Blonder et al.
patent: 6606133 (2003-08-01), Okabe
patent: 7004611 (2006-02-01), Parker et al.
patent: 7566156 (2009-07-01), Hasei et al.
patent: 2001-296407 (2001-10-01), None
patent: 2007-121675 (2007-05-01), None

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