Invention Grant
- Patent Title: Light-emitting device that includes a plurality of light-emitting layers stacked on top of each other, display, and electronic apparatus
- Patent Title (中): 包括堆叠在彼此顶部的多个发光层的显示器和电子设备的发光器件
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Application No.: US12189926Application Date: 2008-08-12
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Publication No.: US07960912B2Publication Date: 2011-06-14
- Inventor: Koji Yasukawa , Masayuki Mitsuya , Hidetoshi Yamamoto
- Applicant: Koji Yasukawa , Masayuki Mitsuya , Hidetoshi Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2007-260408 20071003
- Main IPC: H05B33/00
- IPC: H05B33/00 ; H01L21/00 ; G09G3/30
Abstract:
A light-emitting device includes a cathode, an anode, a first light-emitting layer that is disposed between the cathode and the anode and that emits light of a first color, a second light-emitting layer that is disposed between the first light-emitting layer and the cathode and that emits light of a second color different from the first color, and an intermediate layer that is disposed between and in contact with the first light-emitting layer and the second light-emitting layer and that functions to prevent energy transfer of excitons between the first light-emitting layer and the second light-emitting layer. The intermediate layer includes a first intermediate layer disposed in contact with the first light-emitting layer and mainly containing a first intermediate material and a second intermediate layer disposed in contact with the second light-emitting layer and mainly containing a second intermediate material different from the first intermediate material.
Public/Granted literature
- US20090091250A1 LIGHT-EMITTING DEVICE, DISPLAY, AND ELECTRONIC APPARATUS Public/Granted day:2009-04-09
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