DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE

WIPO Patent Application WO/2022/224345

A1

This method for manufacturing a display device comprises: a first light-emitting layer forming step for, using a quantum dot resist (4P) being a first solution containing a first light-emitting material and a first solvent, forming, in at least a red sub pixel (RSP) being a first region on a substrate (1), a red light-emitting layer being a first light-emitting layer that emits light in a first color; and a second light-emitting layer forming step for, using a quantum dot colloid (24C) being a second solution containing a second light-emitting material and a second solvent in which the solubility of the first light-emitting material is lower than the solubility of the first light-emitting material in the first solvent, forming, in at least a blue sub pixel (BSP) being a second region on the substrate (1), a blue light-emitting layer being a second light-emitting layer that emits light in a second color different from the first color, the second light-emitting layer forming step being performed after the first light-emitting layer forming step. The red light-emitting layer (4PR) being the first light-emitting layer and the blue light-emitting layer (24CB) being the second light-emitting layer emit light in different regions.

ADACHI TAKAHIRO
ASAOKA YASUSHI

PCT/JP2021/016023

October 27, 2022

April 20, 2021

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SHARP KK (JP)

G09F9/30; H01L27/32; H01L51/50; H05B33/10; H05B33/12; H05B33/14

JP2002367775A	2002-12-20
CN111863917A	2020-10-30
JP2019165006A	2019-09-26
CN107394020A	2017-11-24
CN112300784A	2021-02-02
CN112234154A	2021-01-15
CN111900269A	2020-11-06
JP2011530785A	2011-12-22
US20060043887A1	2006-03-02

HARAKENZO WORLD PATENT & TRADEMARK (JP)

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