Title:
LIGHT EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/075156
Kind Code:
A1
Abstract:
Provided is a technology that improves the luminous efficiency of a light emitting element, which contains quantum dots in a light emitting layer, by improving the balance between electrons and holes within a quantum dot layer. A light emitting element according to the present disclosure is provided with a positive electrode, a negative electrode and a quantum dot layer which is provided between the positive electrode and the negative electrode, while comprising a plurality of quantum dots and a hole that is the region among the plurality of quantum dots; and the quantum dot layer contains both the plurality of quantum dots and the hole in the quantum dot layer in every cross-section, which has a normal in the direction from the negative electrode toward the positive electrode, of the quantum dot layer in the entire region of the quantum dot layer.
Inventors:
UETA YOSHIHIRO
Application Number:
PCT/JP2020/032115
Publication Date:
April 22, 2021
Filing Date:
August 26, 2020
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H05B33/10; H01L51/50; H05B33/14
Domestic Patent References:
| WO2007142203A1 | 2007-12-13 |
Foreign References:
| US20190273214A1 | 2019-09-05 | |||
| US20180033988A1 | 2018-02-01 | |||
| US20190280231A1 | 2019-09-12 | |||
| JP2009087755A | 2009-04-23 | |||
| US20190103571A1 | 2019-04-04 |
Attorney, Agent or Firm:
INOUE Tomoya (JP)
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