公开(公告)号：US07220043B2

公开(公告)日：2007-05-22

申请号：US10902052

申请日：2004-07-30

申请人： Guy-Ho Cha ,  Sung-Yong Kang ,  Se-In Chang

发明人： Guy-Ho Cha ,  Sung-Yong Kang ,  Se-In Chang

IPC分类号： F21V4/00

CPC分类号： G02B6/0013 ,  G02B6/0043 ,  G02B6/0055 ,  G02B6/0068

摘要： There is disclosed a backlight assembly for maximizing a light incidence efficiency by changing a construction of a light guide plate and a liquid crystal display device having the same. A light incidence surface of the light guide plate receiving a light from a lamp is inclined to make an obtuse angle with a light-emitting surface through which the light is transferred to the display unit. An open surface of a lamp cover that is disposed to face towards the light incidence surface is formed to have the same inclined angle as the light incidence surface of the light guide plate. In addition, a light reflecting plate and an optical sheet are respectively disposed on the top and bottom surfaces of the light guide plate, on which light absorbing layers, for absorbing light that leaks from the light guide plate, are formed at both ends thereof. Accordingly, there are advantages in that the light incidence efficiency of the light is improved even though a thickness of the light guide plate is not increased, and that it is possible to remove the light concentrated at an edge of the light incidence surface of the light guide plate.

摘要翻译： 公开了通过改变导光板和具有该导光板的液晶显示装置的结构来最大化光入射效率的背光组件。 接收来自灯的光的导光板的入射面倾斜成与发光面发生钝角，通过该光出射面将光转印到显示单元。 被配置为面向光入射面的灯罩的开​​放面形成为与导光板的光入射面相同的倾斜角。 另外，在导光板的上表面和下表面分别设置有光反射板和光学片，在其两端形成有用于吸收从导光板泄漏的光的光吸收层。 因此，即使导光板的厚度不增加，光的光入射效率也有提高的优点，并且可以去除聚光在光入射面的边缘的光 导板。