发明授权
- 专利标题: Organic EL display device comprising a reflection structure
- 专利标题(中): 有机EL显示装置,包括反射结构
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申请号: US12230416申请日: 2008-08-28
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公开(公告)号: US07977874B2公开(公告)日: 2011-07-12
- 发明人: Toshiyuki Matsuura , Masahiro Tanaka , Masato Ito
- 申请人: Toshiyuki Matsuura , Masahiro Tanaka , Masato Ito
- 申请人地址: JP Chiba-ken
- 专利权人: Hitachi Displays, Ltd.
- 当前专利权人: Hitachi Displays, Ltd.
- 当前专利权人地址: JP Chiba-ken
- 代理机构: Stites & Harbison PLLC
- 代理商 Juan Carlos A. Marquez, Esq.
- 优先权: JP2007-222019 20070829
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/52 ; H01L51/54
摘要:
The present invention provides an organic EL display device which has a long lifetime. The organic EL display device includes a plurality of pixels each of which is constituted of a top-emission-type active matrix organic EL element. The EL element includes: a pixel electrode; a reflective layer arranged between the pixel electrode and an active element and is formed over a leveling layer; an organic light emission layer; and a common electrode. The reflective layer includes: a first reflective layer which is made of high-melting-point metal; and a second reflective layer which is arranged on the first reflective layer. The second reflective layer includes a planar pattern in which an outer periphery of the second reflective layer is surrounded by the first reflective layer. The pixel electrode extends outward from the first reflective layer and the second reflective layer.
公开/授权文献
- US20090058290A1 Organic EL display device 公开/授权日:2009-03-05
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