Wavelength selective absorption filter and display device
AssigneeFUJIFILM Corporation
InventorsNobutaka Fukagawa, Hiroki Kuwahara
Life of this patent
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AssigneeFUJIFILM Corporation
InventorsNobutaka Fukagawa, Hiroki Kuwahara
Estimating the term…
A wavelength selective absorption filter contains a resin, a coloring agent, and a compound having at least one polar group of a carboxylic acid ester bond, a carboxylic acid amide bond, a sulfonic acid amide bond, a urethane bond, or a sulfonyl bond and a MW≤1,000 where dye includes at least one of dye A having a main absorption wavelength range at a wavelength of 390 to 440 nm and dye D having a main absorption wavelength range at a wavelength of 680 to 780 nm, a 20% value wavelength A with respect to an absorbance maximal value exhibited by a main absorption wavelength is 455 nm or less where dye A is contained, and a 20% value wavelength D with respect to the absorbance maximal value exhibited by the main absorption wavelength is 640 nm or more where dye D is contained, and a display device.
A wavelength selective absorption filter comprising:
Dependencies are inferred from the claim text.