Invention Grant
US08471463B2 Organic EL element, and light-emitting apparatus, image-forming apparatus, display apparatus and imaging apparatus using the organic EL element
有权
有机EL元件，发光装置，图像形成装置，显示装置以及使用该有机EL元件的摄像装置
- Patent Title: Organic EL element, and light-emitting apparatus, image-forming apparatus, display apparatus and imaging apparatus using the organic EL element
- Patent Title (中): 有机EL元件，发光装置，图像形成装置，显示装置以及使用该有机EL元件的摄像装置
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Application No.: US13564405Application Date: 2012-08-01
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Publication No.: US08471463B2Publication Date: 2013-06-25
- Inventor: Takayuki Sumida , Norifumi Kajimoto , Nobutaka Mizuno , Takayuki Ito
- Applicant: Takayuki Sumida , Norifumi Kajimoto , Nobutaka Mizuno , Takayuki Ito
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2011-176463 20110812; JP2012-017447 20120131
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04
Abstract:
Provided is an organic EL element in which emission efficiency is improved by suppressing a loss of excitation energy by a surface plasmon generated on an electrode surface. A hole transport layer is formed of a material having a refractive index of 1.20 or more and 1.65 or less at a maximum peak wavelength of a spectrum of light emitted by a light-emitting layer.
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