Title:
METHOD FOR PRODUCING LIGHT EMITTING ELEMENT, AND LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/219697
Kind Code:
A1
Abstract:
This method for producing a light emitting element comprises: a) a step for forming an intermediate layer containing a first resin on a charge transport layer; b) a step for forming, on the intermediate layer, a light emitting layer containing a second resin, a second photosensitive material, and a first light emitting material; c) a step for exposing the intermediate layer and the light emitting layer to light in a predetermined pattern to separately obtain the exposed intermediate layer and the exposed light emitting layer; and d) a step for developing the exposed intermediate layer and the exposed light emitting layer with a developing solution. The solubility of a second portion that is dissolved by the developing solution in the exposed intermediate layer and the solubility of a first portion that is dissolved by the developing solution in the exposed light emitting layer are different from each other.
Inventors:
ADACHI TAKAHIRO
ASAOKA YASUSHI
ASAOKA YASUSHI
Application Number:
PCT/JP2021/015254
Publication Date:
October 20, 2022
Filing Date:
April 13, 2021
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H05B33/10; H01L51/50; H05B33/14
Domestic Patent References:
| WO2019186847A1 | 2019-10-03 |
Foreign References:
| CN110459691A | 2019-11-15 | |||
| CN111900269A | 2020-11-06 | |||
| JP2010034143A | 2010-02-12 |
Attorney, Agent or Firm:
INOUE Tomoya (JP)
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