Birch, Stewart, Kolasch & Birch, LLP
Backlight device for a liquid crystal display device
The present invention discloses a backlight device for a liquid crystal display device, which includes a light source; a light waveguide plate having an end portion and a front portion; a lamp holder having a lamp reflector, the lamp holder surrounding most part of the light source, the lamp reflector reflecting a light to the end portion of the light waveguide plate; and a first prism sheet located on the front portion of the light waveguide plate, the prism sheet having a plurality of convex portions, the convex portions having an inclined line portion and a curved line portion, the inclined line portion having an predetermined angle with respect to a direction vertical to the front portion of the light waveguide plate.
LG. Philips LCD Co., LTD
G G G G G
G02B G02B G02B G02B G02B
inventional inventional inventional inventional additional
Jonghoon Seehyung Chul
Lee Lee Park