- Patent Title: Light emitting device, method for manufacturing the light emitting device, electronic device provided with the light emitting device and electronic equipment provided with the electronic device
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Application No.: US11921875Application Date: 2006-06-09
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Publication No.: US08344618B2Publication Date: 2013-01-01
- Inventor: Masamitsu Uehara
- Applicant: Masamitsu Uehara
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2005-170457 20050610
- International Application: PCT/JP2006/311652 WO 20060609
- International Announcement: WO2006/132374 WO 20061214
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
A light emitting device includes a cathode, an anode, a light emitting layer provided between the cathode and the anode, an intermediate layer provided between the cathode and the light emitting layer so as to be in contact with both the cathode and the light emitting layer. The intermediate layer includes a base in the form of a layer, the base being constituted of a metal oxide based semiconductor material as a main component thereof and having a first surface which is in contact with the light emitting layer and a second surface opposite to the first surface, and a dye carried on the first surface of the base and inner surfaces of pores formed in the base so as to be in contact with the light emitting layer. By using the light emitting device mentioned above, it is possible to improve properties of the light emitting device such as luminous efficiency and the like. A method for manufacturing such a light emitting device is also provided. An electronic device provided with such a light emitting device is also provided. Electronic equipment provided with such an electronic device is also provided.
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