IP Library Granted Patent US 12,557,461
Granted Patent B2
US 12,557,461 · App. 17/969,049 · Granted Feb 17, 2026

Display device

Inventors: Hae Ju Yun (Hwaseong-si, KR); Won Tae Kim (Suwon-si, KR); Soo Hyun Moon (Suwon-si, KR); Jun Seok Min (Suwon-si, KR); Woo Guen Jang (Seongnam-si, KR)
Assignee: Samsung Display Co., Ltd.
H10H29/142G09F9/3026G09F9/33H10H20/8312H10H20/8514H10H20/857
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Quick Facts
Patent No.
US 12,557,461
App. No.
17/969,049
Granted
Feb 17, 2026
Kind
B2
Abstract

A display device includes a display area including a plurality of light emitting area including a first light emitting area, a second light emitting area, a third light emitting area, and a light blocking area disposed between adjacent ones of the plurality of light emitting areas, and a non-display area disposed adjacent to the display area, light emitting elements disposed on a substrate in each of the first light emitting area, the second light emitting area, and the third light emitting area, and a light conversion layer disposed on the light emitting elements. The light conversion layer includes a first wavelength conversion part disposed in the first light emitting area, a second wavelength conversion part disposed in the second light emitting area, a first light transmissive part disposed in the third light emitting area, and a bank disposed in the light blocking area. The non-display area is disposed on an edge of the display area. A second light transmissive part is further disposed in the non-display area.

Claims (79)

1 . A display device comprising:

a display area comprising:

a plurality of light emitting areas including:

a first light emitting area;

a second light emitting area; and

a third light emitting area; and

a light blocking area disposed between adjacent ones of the plurality of light emitting areas;

a non-display area disposed adjacent to the display area;

light emitting elements disposed on a substrate in each of the first light emitting area, the second light emitting area, and the third light emitting area;

a light conversion layer disposed on the light emitting elements; and

a color filter layer disposed on the light conversion layer, wherein

the light conversion layer includes:

a first wavelength conversion part disposed in the first light emitting area;

a second wavelength conversion part disposed in the second light emitting area;

a first light transmissive part disposed in the third light emitting area;

a second light transmissive part disposed in the non-display area; and

a bank disposed in the light blocking area,

the non-display area is disposed on an edge of the display area,

the bank is not overlapped with the first light emitting area, the second light emitting area, and the third light emitting area,

wherein the color filter layer includes:

a first color filter disposed in the first light emitting area;

a second color filter disposed in the second light emitting area; and

a third color filter disposed in the third light emitting area, and

wherein the first color filter, the second color filter, and the third color filter are disposed in the light blocking area and in the non-display area.

2 . The display device of claim 1 , wherein

the first light emitting area, the second light emitting area, the third light emitting area, and the light blocking area constitute a pixel, and

the third light emitting area of the pixel adjacent to the non-display area is disposed adjacent to the non-display area in a plan view.

3 . The display device of claim 2 , wherein the third light emitting area directly contacts the non-display area in a plan view.

4 . The display device of claim 3 , wherein the first light transmissive part directly contacts the second light transmissive part.

5 . The display device of claim 4 , wherein

the first wavelength conversion part includes a first wavelength shifter, and

the first wavelength shifter converts a wavelength of light from the light emitting elements into red light.

6 . The display device of claim 5 , wherein

the second wavelength conversion part includes a second wavelength shifter, and

the second wavelength shifter converts the wavelength of the light from the light emitting elements into green light.

7 . The display device of claim 6 , wherein

the first light transmissive part and the second light transmissive part include a scatterer, and

the scatterer scatters the light from the light emitting element.

8 . The display device of claim 1 , wherein in the non-display area, the first color filter, the second color filter, and the third color filter are sequentially stacked to form a light blocking pattern.

9 . The display device of claim 8 , wherein in the non-display area, the light blocking pattern includes a slit portion penetrating through the light blocking pattern in a thickness direction.

10 . The display device of claim 9 , wherein a width of the slit portion is in a range of about 10% to about 30% of a width of the non-display area.

11 . A tiled display device comprising:

a first display device;

a second display device disposed adjacent to the first display device; and

a sealing part between the first display device and the second display device, wherein

each of the first display device and the second display device comprises:

a display area comprising:

a plurality of light emitting areas including:

a first light emitting area;

a second light emitting area; and

a third light emitting area; and

a light blocking area disposed between adjacent ones of the plurality of light emitting areas,

a non-display area disposed adjacent to the display area;

light emitting elements disposed on a substrate in each of the first light emitting area, the second light emitting area, and the third light emitting area; and

a light conversion layer disposed on the light emitting elements,

the light conversion layer of each of the first display device and the second display device includes:

a first wavelength conversion part disposed in the first light emitting area,

a second wavelength conversion part disposed in the second light emitting area,

a first light transmissive part disposed in the third light emitting area, and a bank disposed in the light blocking area, and

a second light transmissive part is disposed in each of the non-display area of the first display device adjacent to the second display device and the non-display area of the second display device adjacent to the first display device.

12 . The tiled display device of claim 11 , further comprising:

a color filter layer disposed on the light conversion layer,

wherein the color filter layer includes:

a first color filter disposed in the first light emitting area;

a second color filter disposed in the second light emitting area; and

a third color filter disposed in the third light emitting area, and

the first color filter, the second color filter, and the third color filter are disposed in the light blocking area and in the non-display area.

13 . The tiled display device of claim 12 , wherein in the non-display area, the first color filter, the second color filter, and the third color filter are sequentially stacked to form a light blocking pattern.

14 . The tiled display device of claim 13 , wherein in the non-display area, the light blocking pattern includes a slit portion penetrating through the light blocking pattern in a thickness direction.

15 . The tiled display device of claim 14 , wherein a width of the slit portion is in a range of about 10% to about 30% of a width of the non-display area.

16 . The tiled display device of claim 11 , wherein the second light transmissive part of the first display device directly contacts the first light transmissive part of the first display device.

17 . The tiled display device of claim 16 , wherein the second light transmissive part of the second display device directly contacts the first wavelength conversion part of the first light emitting area of the second display device.

18 . The tiled display device of claim 17 , wherein

the first wavelength conversion part includes a first wavelength shifter,

the first wavelength shifter converts a wavelength of light from the light emitting elements into red light,

the second wavelength conversion part includes a second wavelength shifter,

the second wavelength shifter converts the wavelength of the light from the light emitting elements into green light,

the first light transmissive part and the second light transmissive part include a scatterer, and

the scatterer scatters the light from the light emitting elements.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 19, 2022
From: YUN, HAE JU; KIM, WON TAE; MOON, SOO HYUN; MIN, JUN SEOK; JANG, WOO GUEN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 061713/0672 →
Priority Claims (1)
KR 10-2022-0026096 · Feb 28, 2022 · national
Continuity (1)
Related Publication 20230275115A1 · Aug 31, 2023
References Cited (19)
US 12016194B2 · Park et al. · 2024 [cited by applicant]
US 12329012B2 · Ahn et al. · 2025 [cited by applicant]
US 12336287B2 · Jang et al. · 2025 [cited by applicant]
US 20150144900A1 · Lee · 2015 [cited by examiner]
US 20180190747A1 · Son · 2018 [cited by examiner]
US 20230120521A1 · Yun et al. · 2023 [cited by applicant]
US 20230133818A1 · Yun et al. · 2023 [cited by applicant]
US 20240306420A1 · Park et al. · 2024 [cited by applicant]
CN 104865741 · 2015 [cited by applicant]
CN 103917000 · 2017 [cited by applicant]
EP 4167052 · 2023 [cited by applicant]
EP 4174622 · 2023 [cited by applicant]
KR 101542425 · 2015 [cited by applicant]
KR 1020170032503 · 2017 [cited by applicant]
KR 1020210082291A · 2021 [cited by applicant]
KR 1020210146468A · 2021 [cited by applicant]
KR 1020220021997A · 2022 [cited by applicant]
KR 1020230053798 · 2023 [cited by applicant]
KR 1020230061617 · 2023 [cited by applicant]