公开(公告)号：US20150312973A1

公开(公告)日：2015-10-29

申请号：US14794196

申请日：2015-07-08

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Kohhei MORONAGA ,  Hideaki HOMMA ,  Akihito KAGOTANI

IPC: H05B33/04 ,  H05B33/12

CPC classification number: H05B33/04 ,  G02B5/045 ,  G02B27/0961 ,  H01L27/3239 ,  H01L51/5262 ,  H01L51/5275 ,  H01L51/529 ,  H05B33/10 ,  H05B33/12

Abstract: An EL panel including: a light-transmissive substrate; an EL element including a light-emitting medium layer interposed between a cathode and an anode, the EL element being provided on one surface of the light-transmissive substrate; and a protection sheet on the other surface of the light-transmissive substrate of the EL element. The protection sheet has a surface opposite to the light-transmissive substrate, the shape of the surface includes rounded convex shapes and prism shapes. Each of the rounded shapes has an apex that is a center point of a cross-section farthest from a bottom surface where the cross-section is parallel to the bottom surface of the unit convex shape and the area becomes smaller in a direction from the bottom surface of the rounded convex shape to a top portion thereof.

Abstract translation: 一种EL面板，包括：透光基板; EL元件，其包括介于阴极和阳极之间的发光介质层，所述EL元件设置在所述透光基板的一个表面上; 以及在EL元件的透光性基板的另一面的保护片。 保护片具有与透光基板相反的表面，该表面的形状包括圆形凸形和棱镜形状。 每个圆形具有顶点，该顶点是距离底部表面最远的横截面的中心点，其中横截面平行于单元凸形的底部表面，并且该区域在从底部的方向上变小 圆形凸形的表面到其顶部。