Invention Grant
- Patent Title: Electroluminescent display device, method for manufacturing the same, and electronic equipment
- Patent Title (中): 电致发光显示装置及其制造方法以及电子设备
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Application No.: US11889178Application Date: 2007-08-09
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Publication No.: US07641533B2Publication Date: 2010-01-05
- Inventor: Hidekazu Kobayashi
- Applicant: Hidekazu Kobayashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2002-353672 20021205; JP2003-344803 20031002
- Main IPC: H05B33/10
- IPC: H05B33/10

Abstract:
A transparent cathode electrode technology for an electroluminescent display device having a top emission structure, provides a top emission type electroluminescent display device and a method to manufacture the same. Oxidation of a substrate film can be reduced or prevented during the film formation of a metal oxide. Electronic equipment including this display device is also provided. A first electrode, a function layer including a luminescent layer, and a transparent second electrode made of a metal oxide are laminated on the substrate in that order from the lower surface. At this time, the oxygen concentration in the second electrode is made to vary in the film thickness direction, and the oxygen concentration in the vicinity of the interface between the second electrode and the function layer is made lower than the average oxygen concentration in the second electrode.
Public/Granted literature
- US20080274660A1 Electroluminescent display device, method for manufacturing the same, and electronic equipment Public/Granted day:2008-11-06
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