Title:
LIGHT ABSORPTION FILTER, OPTICAL FILTER AND MANUFACTURING METHOD THEREOF, ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE, INORGANIC ELECTROLUMINESCENT DISPLAY DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/163186
Kind Code:
A1
Abstract:
The present invention provides: a light absorption filter including a wavelength selective absorption layer, which contains a resin and a squalin dye expressed by general formula (1) given below, and an adjoining layer disposed on at least one surface of this wavelength selective absorption layer, wherein the adjoining layer contains acid or a basic compound; an optical filter utilizing this light absorption filter as well as a manufacturing method thereof; and an organic electroluminescent display device, an inorganic electroluminescent display device, and a liquid crystal display device which are equipped with this optical filter. In the formula given above, A and B independently represent an aryl group which may have a substituent, a heterocyclic group which may have a substituent, or -CH=G. G represents a heterocyclic group which may have a substituent.
Inventors:
FUKAGAWA NOBUTAKA (JP)
NAITO YU (JP)
NAITO YU (JP)
Application Number:
PCT/JP2023/007138
Publication Date:
August 31, 2023
Filing Date:
February 27, 2023
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/22; C09B57/00; C09B67/20; G02F1/1335; G09F9/00; G09F9/30; G09F9/35; H05B33/02; H05B33/14; H10K50/86; H10K59/10
Domestic Patent References:
| WO2020116642A1 | 2020-06-11 |
Foreign References:
| JP7162103B2 | 2022-10-27 | |||
| JP7178509B2 | 2022-11-25 | |||
| JP2020106551A | 2020-07-09 |
Attorney, Agent or Firm:
IIDA & PARTNERS et al. (JP)
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