公开(公告)号：US06985131B2

公开(公告)日：2006-01-10

申请号：US09910862

申请日：2001-07-24

申请人： Tomoaki Kawada ,  Akio Tezuka ,  Hisao Hirayama ,  Toshitsugu Miyawaki ,  Masataka Natori

发明人： Tomoaki Kawada ,  Akio Tezuka ,  Hisao Hirayama ,  Toshitsugu Miyawaki ,  Masataka Natori

IPC分类号： G09G3/36

CPC分类号： G02B6/0036 ,  G02B6/0061 ,  G02B6/0088 ,  G02F1/133615

摘要： In a liquid crystal display device having the so-called side-edge type backlight system which comprises: a liquid crystal display panel; a light guide plate being disposed opposite to a main surface of the liquid crystal panel; and a linear lamp being disposed along one of sides of the light guide plate, the present invention provides a plurality of grooves at a corner area of an edge of the light guide plate along which the linear lamp is disposed so that the plurality of grooves are extended in a direction slanted to the edge of the light guide plate. In accordance with this structural feature, the present invention enables a high quality image display performance of the liquid crystal display panel by suppressing the display irregularity appearing therein effectively.