发明授权
US07710028B2 EL display device having pixel electrode with projecting portions and manufacturing method thereof
失效
具有突出部分的像素电极的EL显示装置及其制造方法
- 专利标题: EL display device having pixel electrode with projecting portions and manufacturing method thereof
- 专利标题(中): 具有突出部分的像素电极的EL显示装置及其制造方法
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申请号: US12208528申请日: 2008-09-11
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公开(公告)号: US07710028B2公开(公告)日: 2010-05-04
- 发明人: Shunpei Yamazaki
- 申请人: Shunpei Yamazaki
- 申请人地址: JP
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Cook Alex Ltd.
- 优先权: JP11-250965 19990903; JP11-336249 19991126
- 主分类号: H05B33/00
- IPC分类号: H05B33/00 ; H05B33/06 ; H01J1/62
摘要:
Reducing the manufacturing cost of an EL display device and an electronic device furnished with the EL display device is taken as an objective. A textured structure in which projecting portions are formed on the surface of a cathode is used. External stray light is diffusely (irregularly) reflected by the action of the projecting portions when reflected by the surface of the cathode, and therefore a defect in which the face of an observer or the surrounding scenery is reflected in the surface of the cathode can be prevented. This can be completed without using a conventionally necessary high price circular polarizing film, and therefore it is possible to reduce the cost of manufacturing the EL display device.
公开/授权文献
- US20090051270A1 EL Display Device and Manufacturing Method Thereof 公开/授权日:2009-02-26