公开(公告)号：US20040189892A1

公开(公告)日：2004-09-30

申请号：US10807245

申请日：2004-03-24

Applicant: NEC LCD TECHNOLOGIES, LTD

Inventor： Shin-Ichirou Ono ,  Hirokazu Fukuyoshi

IPC: G02F001/1335

CPC classification number: G02F1/133611 ,  G02F1/133604 ,  G02F2001/133342 ,  G02F2001/133607

Abstract: A double-sided, direct-irradiation type backlight unit has a structure of capable of reducing the luminance irregularity and improve the luminance efficiency. The backlight unit has a scatter-reflection rod member 101 between each adjacent two of elongate lamps. The scatter-reflection rod member 101 has a symmetric shape with respect to the line passing the center thereof in X-direction, and that passing the center thereof in Y-direction. The light emitted from the elongate lamp 102 in X-direction is reflected by the scatter-reflection-rod member 101 and then travels in the direction toward the front- and rear-side diffusion plates 106.

Abstract translation: 双面直接照射型背光单元具有能够降低亮度不均匀性和提高发光效率的结构。 背光单元在每个相邻的两个细长灯之间具有散射反射杆构件101。 散射反射杆构件101相对于X方向的中心线的对称形状，并且使其中心沿Y方向通过。 从细长灯102沿X方向发射的光被散射反射杆部件101反射，然后朝向前侧和后侧扩散板106的方向行进。