WAVELENGTH CONVERSION SUBSTRATE AND DISPLAY DEVICE

WIPO Patent Application WO/2023/223889

A1

In this display device comprising a wavelength conversion substrate provided with a partition wall, a technology is provided which can inhibit color loss and deterioration in luminance which results from generation of bubbles in a wavelength conversion layer.　Provided is a wavelength conversion substrate (3A) that comprises: a transparent substrate (31) having a first main surface and a second main surface; a resin layer (34) which is provided on the first main surface and which has a plurality of first through holes; an inorganic covering layer (35) including a plurality of first portions which at least partially cover the lateral walls of the plurality of first through holes; and wavelength conversion layers (36G, 36R) which include a plurality of wavelength conversion parts provided in at least some of the plurality of first through holes. The coverage of the lateral walls by the first portions is 60% or more. The length L1 of an opening of each of the first through holes at the transparent substrate (31) side is in a range of 10-1000 μm, and the ratio W1/L1 of the width W1 of the opening at the transparent substrate (31) side to the length L1 is in a range of 0.01-0.95.

JP2019510268	A screen and a heads-up display with this screen
JP2008209864	ORGANIC EL DISPLAY

YOKOTA RYOSUKE (JP)
KOMATSU DAISUKE (JP)
GOTO KEISUKE (JP)
KAWADA HIROAKI (JP)
IMAYOSHI KOJI (JP)
SHIOMITSU KAZUHIKO (JP)

PCT/JP2023/017425

November 23, 2023

May 09, 2023

Click for automatic bibliography generation  

TOPPAN INC (JP)

G09F9/30; G02B5/20; G02F1/1335; G09F9/33; H01L33/50; H01L33/58

WO2016171207A1	2016-10-27
WO2012108142A1	2012-08-16

JP2017161604A	2017-09-14
JP2015148639A	2015-08-20
US20190018286A1	2019-01-17

SUZUYE & SUZUYE (JP)

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