IP Library Granted Patent US 12690307
Granted Patent B2
US 12690307 · App. 17/778,760 · Granted Jul 21, 2026

Display device

Inventors: Yoshihiro Harada (Osaka, JP); Yoshifumi Komatsu (Osaka, JP); Tomohiro Fukuura (Osaka, JP)
Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
H10H20/8512H10H20/84
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Quick Facts
Patent No.
US 12690307
App. No.
17/778,760
Granted
Jul 21, 2026
Kind
B2
Abstract

A display device including a blue light source (A), a wavelength conversion layer (B), and a light absorption layer (C), wherein the wavelength conversion layer (B) has a first wavelength conversion layer (B1) containing a compound (Q1) that absorbs blue and emits red light, and a second wavelength conversion layer (B2) containing a compound (Q2) that absorbs blue and emits green light, and the display device satisfies 0.7≤X1 and 0.7≤X2.

Claims (12)

1 . A film formed from a curable resin composition and satisfying the following condition (5),

wherein the curable resin composition comprises a light scattering agent(S), a resin (F), a polymerizable compound (G), a polymerization initiator (H) and a compound (Q1) that absorbs blue and emits red light,

0.7 ≤X 5,  (5)

wherein

X5 is a value obtained by dividing a product of a thickness T5 [μm] of the film and a content ratio W5 [% by mass] of the compound (Q1) in the film by 100 [X5=(T5×W5)/100].

2 . The film according to claim 1 , wherein the compound (Q1) contains at least one selected from the group consisting of an indium compound and a cadmium compound.

3 . The film according to claim 1 , wherein the film satisfies the following condition (3):

X 3≤1.6,  (3)

wherein

X3 is a value obtained by dividing a product of a thickness T1 [μm] of the film and a content ratio W3 [% by mass] of the light scattering agent(S) in the film by 100 [X3=(T1×W3)/100].

4 . The film according to claim 1 , wherein the resin (F) is an alkali-soluble resin, and the acid value of the resin (F) is 50 to 170 mg-KOH/g.

5 . The film according to claim 1 , wherein the light scattering agent(S) includes titanium oxide particles.