Title:
COLOR CONVERSION SUBSTRATE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/119759
Kind Code:
A1
Abstract:
A color conversion substrate according to the present invention comprises: a transparent substrate; a color filter part including a lattice-shaped black matrix having an opening, and a color filter arranged in the opening; and a wavelength conversion unit including a reflective partition wall provided on the color filter part so as to overlap the black matrix, and a wavelength converting layer provided in an opening of the reflective partition wall. The color filter includes at least one selected from a red filter, a green filter, and a yellow filter. The reflective partition wall comprises a first pillar formed of a transparent resin in a lattice shape, and a metal thin film provided on the first pillar. Furthermore, a second pillar arranged at a position not overlapping any of the red filter, the green filter, or the yellow filter in a plan view is provided, and the first pillar and the second pillar are integrally contiguous at least at a bottom part.
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Inventors:
IMAYOSHI KOJI (JP)
GOTO KEISUKE (JP)
KAWADA HIROAKI (JP)
GOTO KEISUKE (JP)
KAWADA HIROAKI (JP)
Application Number:
PCT/JP2022/034890
Publication Date:
June 29, 2023
Filing Date:
September 20, 2022
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
G02B5/20; G09F9/30; G09F9/33
Foreign References:
| JP2015138123A | 2015-07-30 | |||
| JP2010118182A | 2010-05-27 | |||
| JP2015050096A | 2015-03-16 | |||
| JP2015148638A | 2015-08-20 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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