公开(公告)号：US20170059765A1

公开(公告)日：2017-03-02

申请号：US15245651

申请日：2016-08-24

Applicant: Japan Display Inc.

Inventor： Tetsuya OSHIMA ,  Masaki NISHIKAWA ,  Yasuhisa SHIRAISHI

IPC: F21V8/00

CPC classification number: G02B6/0053 ,  G02B6/00 ,  G02B6/0055 ,  G02B6/0065 ,  G02F1/133504 ,  G02F2001/133507

Abstract: A display device includes a prism sheet between a display cell and a light guiding plate. The prism sheet includes a plurality of prisms having a constant apex angle continuously arranged in a second direction on a surface thereof opposed to a light-exiting surface of the light guiding plate. Each of ridge lines of the prisms extends in a first direction. Each prism has a first inclined face on a side on which light from the light guiding plate is incident and a second inclined face on a side reflecting the incident light. An area of the first inclined face is made smaller than an area of the second inclined face, and an area of a light-emitting region in the prism sheet is made larger than an area of a non-light-emitting region.

Abstract translation: 显示装置包括在显示单元和导光板之间的棱镜片。 棱镜片包括在与导光板的光出射表面相对的表面上沿第二方向连续布置的具有恒定顶角的多个棱镜。 棱镜的每条脊线沿第一方向延伸。 每个棱镜具有在来自导光板的光入射的一侧上的第一倾斜面和反射入射光的一侧上的第二倾斜面。 使第一倾斜面的面积比第二倾斜面的面积小，使得棱镜片中的发光区域的面积大于非发光区域的面积。