IP Library › Granted Patent US 12,532,631
Granted Patent B2
US 12,532,631 · App. 17/743,354 · Granted Jan 20, 2026

Electronic apparatus and method of manufacturing the same

Inventors: Byungchul Kim (Yongin-si, KR); Jangwi Ryu (Yongin-si, KR); Jaemin Seong (Yongin-si, KR); Gakseok Lee (Yongin-si, KR); Inseok Song (Yongin-si, KR); Halim Ji (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/38H10K59/8792H10K85/60H10K71/00
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Quick Facts
Patent No.
US 12,532,631
App. No.
17/743,354
Granted
Jan 20, 2026
Kind
B2
Abstract

An electronic apparatus and a method of manufacturing the same are provided. The electronic apparatus includes: a substrate; a light source on the substrate; a color conversion layer on the light source; a UV-absorbing layer on the color conversion layer; and a color filter on the UV-absorbing layer.

Claims (99)

1 . An electronic apparatus comprising:

a substrate;

a light source on the substrate;

a color conversion layer on the light source;

a UV-absorbing layer on the color conversion layer; and

a color filter on the UV-absorbing layer,

wherein the UV-absorbing layer is to absorb a portion of light emitted from the light source and the color conversion layer.

2 . The electronic apparatus of claim 1 , wherein

the light source is to emit blue light.

3 . The electronic apparatus of claim 1 , wherein

the light source comprises a light-emitting device, and

the light-emitting device comprises:

a first electrode;

a second electrode facing the first electrode; and

an interlayer between the first electrode and the second electrode and comprising an emission layer.

4 . The electronic apparatus of claim 1 , wherein

the color conversion layer comprises quantum dots.

5 . The electronic apparatus of claim 1 , wherein

the color conversion layer comprises:

a first region to emit a first-color light;

a second region to emit a second-color light; and

a third region to emit a third-color light.

6 . The electronic apparatus of claim 5 , wherein

the first-color light is red light,

the second-color light is green light, and

the third-color light is blue light.

7 . The electronic apparatus of claim 5 , wherein

the first region comprises red quantum dots, and

the second region comprises green quantum dots.

8 . The electronic apparatus of claim 1 , wherein

the UV-absorbing layer is to absorb light having a wavelength of equal to or less than 380 nm.

9 . The electronic apparatus of claim 1 , wherein

a thickness of the UV-absorbing layer is in a range of about 1 μm to about 3 μm.

10 . The electronic apparatus of claim 1 , wherein

the UV-absorbing layer comprises a UV-absorbing compound, and

the UV-absorbing compound comprises:

a benzophenone-containing compound, a benzoquinone-containing compound, a benzoanthraquinone-containing compound, a xanthone-containing compound, a benzotriazine-containing compound, a benzotriazinone-containing compound, a benzotriazole-containing compound, a benzoate-containing compound, a cyanoacrylate-containing compound, a triazine-containing compound, an oxanilide-containing compound, a salicylate-containing compound, a pyrene-containing compound, a naphthalene-containing compound, and/or an anthracene-containing compound, each substituted with a hydroxyl group;

a catechol-containing compound; and/or

a piperidine-containing compound.

11 . The electronic apparatus of claim 10 , wherein

the UV-absorbing compound comprises one of groups represented by Formulae 1-1 to 1-5:

wherein, in Formulae 1-1 to 1-5,

CY 1 to CY 3 are each independently selected from a benzene group, a naphthalene group, an anthracene group, a pyrene group, and a phenanthrene group,

L 10 and L 20 are each independently —O—, —S—, —S(═O) 2 —, —C(═O)—, —C(═O)O—, —C(═O)NH—, a C 1 -C 30 hydrocarbon group, a C 5 -C 60 carbocyclic group, or a C 2 -C 30 heterocyclic group,

m10 and m20 are each independently an integer from 0 to 20,

L 10 is a single bond when m10 is 0, and L 20 is a single bond when m20 is 0,

R 10a and R 10b are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine group, a hydrazone group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 60 cycloalkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —Si(Q 1 )(Q 2 )(Q 3 ), —N(Q 1 )(Q 2 ), —B(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O) 2 (Q 1 ), and —P(═O)(Q 1 )(Q 2 ),

R 10a and R 10b are optionally linked to each other to form a —(Y 1 ) k1 -linking group,

Y 1 is —O—, —S—, or —C(═O)—,

k1 is an integer from 1 to 3,

one of Y 2 and Y 3 is N, and an other one of Y 2 and Y 3 is a single bond, a double bond, or —C(═O)—,

R 10 , R 20 , R 30 , R 40 , R 50 , R 51 , R 60 , R 61 , and R 62 are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 60 cycloalkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —Si(Q 1 )(Q 2 )(Q 3 ), —N(Q 1 )(Q 2 ), —B(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O) 2 (Q 1 ), and —P(═O)(Q 1 )(Q 2 ),

a10 is an integer from 1 to 8,

a20 is an integer of 1 to 4,

a30 and a40 are each independently an integer from 1 to 4,

a50 and a61 are each independently an integer from 1 to 9,

at least one of R 10 (s) in a number of a10 is a hydroxyl group,

at least one of R 20 (s) in a number of a20 is a hydroxyl group, and

at least one of R 30 (s) in a number of a30 is a hydroxyl group.

12 . The electronic apparatus of claim 11 , wherein

the UV-absorbing compound comprises one of groups represented by Formulae 2-1 to 2-12:

and

wherein, in Formulae 2-1 to 2-12,

L 1 is the same as described in connection with L 10 of Formulae 1-1 to 1-5,

m1 is an integer from 0 to 6,

R 10c , R 10d , and R 11 to R 18 are each independently the same as described in connection with R 10 of Formulae 1-1 to 1-5,

a16 is 1 or 2,

a17 is an integer from 1 to 4,

b15 is 1 or 2,

b16 is an integer from 1 to 4,

b17 is 1 or 2,

R 21 to R 23 are each independently the same as described in connection with R 20 of Formulae 1-1 to 1-5,

R 31 to R 35 are each independently the same as described in connection with R 30 of Formulae 1-1 to 1-5,

R 41 to R 44 are each independently the same as described in connection with R 40 of Formulae 1-1 to 1-5,

R 60 and R 62 are respectively the same as described in connection with Formulae 1-1 to 1-5,

R 63 to R 66 are each as described in connection with R 61 of Formulae 1-1 to 1-5, and

at least one of R 11 to R 18 , at least one of R 21 to R 23 , and at least one R 31 to R 35 are each a hydroxyl group.

13 . The electronic apparatus of claim 10 , wherein

an amount of the UV-absorbing compound is in a range of about 1 part by weight to about 5 parts by weight based on 100 parts by weight of the UV-absorbing layer.

14 . The electronic apparatus of claim 1 , wherein

the color filter comprises:

a first-first region to emit a first first-color light;

a second-first region to emit a second first-color light; and

a third-first region to emit a third first-color light.

15 . The electronic apparatus of claim 1 , further comprising

a second planarization layer between the color conversion layer and the UV-absorbing layer.

16 . The electronic apparatus of claim 1 , further comprising

a second capping layer between the color conversion layer and the UV-absorbing layer.

17 . A method of manufacturing an electronic apparatus, the method comprising:

preparing a light source on a substrate;

preparing a color conversion layer on the light source;

preparing a UV-absorbing layer on the color conversion layer; and

preparing a color filter on the UV-absorbing layer.

18 . The method of claim 17 , wherein

the light source is a light-emitting device.

19 . The method of claim 17 , wherein

the color conversion layer comprises quantum dots.

20 . The method of claim 19 , wherein

the UV-absorbing layer is to absorb light having a wavelength of equal to or less than 380 nm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2022
From: KIM, BYUNGCHUL; RYU, JANGWI; SEONG, JAEMIN; LEE, GAKSEOK; SONG, INSEOK; JI, HALIM
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 059998/0953 →
Priority Claims (1)
KR 10-2021-0074301 · Jun 8, 2021 · national
Continuity (1)
Related Publication 20220406852A1 · Dec 22, 2022
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