Title:
複数の有機ＥＬ素子を有する発光装置
Document Type and Number:
Japanese Patent JP6833776
Kind Code:
B2
Abstract:
To provide a light emitting device in which a leakage current between adjacent organic EL elements is suppressed and power consumption is reduced by utilizing optical interference.SOLUTION: An organic EL device includes a reflective electrode, a hole transport region, an electron trap type first light emitting layer, and a light extraction electrode in this order, and a sum of a thickness of the hole transport region and a thickness of the first light emitting layer is an optical distance that enhances the light emitted by the first light emitting layer.SELECTED DRAWING: Figure 1
Inventors:
Kajimoto Norifumi
Koji Ishizutani
Hiroaki Sano
Tetsuo Takahashi
Noriyuki Ito
Hirokazu Miyashita
Koji Ishizutani
Hiroaki Sano
Tetsuo Takahashi
Noriyuki Ito
Hirokazu Miyashita
Application Number:
JP2018164460A
Publication Date:
February 24, 2021
Filing Date:
September 03, 2018
Export Citation:
Assignee:
Canon Inc
International Classes:
H01L51/50; G09F9/30; H01L27/32; H04N5/225; H05B33/12; H05B33/24
Domestic Patent References:
| JP2007123611A | ||||
| JP2015122459A | ||||
| JP2013030476A |
Foreign References:
| WO2016050834A1 | ||||
| KR1020170099027A | ||||
| US20070029539 | ||||
| KR1020120022861A |
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa