公开(公告)号：KR20070118477A

公开(公告)日：2007-12-17

申请号：KR20060052655

申请日：2006-06-12

Applicant: LG PHILIPS LCD CO LTD

Inventor： SUNG SEUNG HOON ,  LEE MAN HOAN ,  KIM MIN JOO ,  KIM MIN SEOP

IPC: G02F1/13357

CPC classification number: G02F1/133615 ,  G02B6/0061 ,  G02F1/133611 ,  G02F2001/133607

Abstract: A light guide plate for an LCD(Liquid Crystal Display) is provided to obtain a more uniform surface light source by removing brightness nonuniformity according to a position and a fixed bright line generated in a specific position, thereby realizing an improved image. A light guide plate(140) for an LCD refracts light incident from a side(140a) to an upper side(140c) of a liquid crystal panel's(110) direction, and is composed of the side, the other side(140b) opposite to the side, two remaining sides, a level upper side(140c) toward the liquid crystal panel, and a lower side(140d) opposite to the upper side. As a position of the light guide plate recedes from a fluorescent lamp(160), the inclination of the light guide plate is increased in a state that a prism pattern is formed to diffuse light on the lower side. Accordingly, the thickness of the light guide plate is gradually decreased.

Abstract translation: 提供了一种用于LCD（液晶显示器）的导光板，以通过根据在特定位置产生的位置和固定亮线去除亮度不均匀性来获得更均匀的表面光源，从而实现了改进的图像。 用于LCD的导光板（140）折射从液晶面板（110）方向的一侧（140a）到上侧（140c）入射的光，并且由侧面，另一侧（140b）相对 在另一侧，剩余的两侧，朝向液晶面板的液面上侧（140c）和与上侧相对的下侧（140d）。 当导光板从荧光灯（160）退出的位置时，导光板的倾斜度在形成棱镜图形以在下侧漫射的状态增加。 因此，导光板的厚度逐渐减小。