Invention Grant
- Patent Title: Organic electroluminescent device, method of manufacturing organic electroluminescent device, and electronic apparatus
- Patent Title (中): 有机电致发光器件,制造有机电致发光器件的方法和电子设备
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Application No.: US11056270Application Date: 2005-02-14
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Publication No.: US07501754B2Publication Date: 2009-03-10
- Inventor: Tatsuaki Funamoto , Ryoichi Nozawa
- Applicant: Tatsuaki Funamoto , Ryoichi Nozawa
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2004-051663 20040226; JP2004-328591 20041112
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04

Abstract:
To provide an organic electroluminescent device and a method of manufacturing the same, in which the organic electroluminescent device has an organic functional layer formed by a liquid phase method, the organic functional layer formed in a uniform thickness while maintaining an aperture ratio, thereby obtaining a uniform and high efficient emission. According to an organic EL device of the present invention, an organic EL element having an organic functional layer interposed between a pixel electrode and a common electrode is arranged on a substrate, and the organic functional layer is arranged in a region surrounded by a bank arranged along the periphery of the pixel electrode, and-at the same time, a hole injection layer and a light-emitting layer are stacked at the pixel electrode. A convex portion protruded at the hole injection layer is arranged on the pixel electrode and a part of the hole injection layer is interposed between the convex portion and the light-emitting layer.
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