Invention Grant
- Patent Title: Light-emitting element, light-emitting apparatus, display, and electronic device
- Patent Title (中): 发光元件，发光装置，显示器和电子设备
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Application No.: US12945391Application Date: 2010-11-12
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Publication No.: US08415685B2Publication Date: 2013-04-09
- Inventor: Tetsuji Fujita , Hidetoshi Yamamoto , Shinichi Iwata , Koji Yasukawa
- Applicant: Tetsuji Fujita , Hidetoshi Yamamoto , Shinichi Iwata , Koji Yasukawa
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-263407 20091118
- Main IPC: H01L27/15
- IPC: H01L27/15 ; H01L31/12 ; H01L33/00
Abstract:
A light-emitting element has a cathode, an anode, a light-emitting portion interposed between the cathode and the anode and having a light-emitting layer that emits light on energization between the cathode and the anode, and a hole-injection layer interposed between and in direct contact with the anode and the light-emitting layer and having a capability of receiving holes, and the hole-injection layer is mainly composed of a benzidine derivative.
Public/Granted literature
- US20110114929A1 LIGHT-EMITTING ELEMENT, LIGHT-EMITTING APPARATUS, DISPLAY, AND ELECTRONIC DEVICE Public/Granted day:2011-05-19
Information query
IPC分类:
