IP Library Granted Patent US 12,628,537
Granted Patent B2
US 12,628,537 · App. 17/876,407 · Granted May 12, 2026

Display panel and display device with light-emitting elements and light-blocking patterns

Inventors: Hyeonbum Lee (Hwaseong-si, KR); Beohmrock Choi (Seoul, KR); Chiwook An (Hwaseong-si, KR)
Assignee: Samsung Display Co., LTD.
H10K59/8792G06F3/0446H10K59/122H10K59/352H10K59/353H10K59/40G06F2203/04112
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Quick Facts
Patent No.
US 12,628,537
App. No.
17/876,407
Granted
May 12, 2026
Kind
B2
Abstract

A display device includes a display panel including first and second areas each including a plurality of element areas and a peripheral area, a first light blocking pattern disposed on the display panel and overlapping the second area, and a second light blocking pattern disposed on the display panel, overlapping the second area, and disposed farther away from the display panel than the first light blocking pattern. Each of first, second and third element areas of the second area includes a plurality of light emitting areas and a non-light-emitting area disposed between the light emitting areas, the first light blocking pattern overlaps the non-light-emitting area of the second element area, and the second light blocking pattern overlaps the non-light-emitting area of the first element area and the non-light-emitting area of the third element area.

Claims (54)

1 . A display device comprising:

a display panel comprising a first area and a second area, the first area comprising a first-first element area for emitting a first color light, a first-second element area for emitting a second color light, a first-third element area for emitting a third color light, and a first peripheral area, the second area comprising a second-first element area for emitting the first color light, a second-second element area for emitting the second color light, a second-third element area for emitting the third color light, and a second peripheral area, the second-second element area having a size smaller than a size of the second-first element area and a size of the second-third element area;

a first light blocking pattern disposed on the display panel, the first light blocking pattern not

overlapping the first area and overlapping the second-second element area of the second area; and

a second light blocking pattern disposed on the display panel, the second light blocking pattern not overlapping the first area and overlapping the second-first element area and the second-third element area of the second area, wherein:

each of the second-first element area, the second-second element area, and the second-third element area of the second area comprises a plurality of light emitting areas and a non-light-emitting area disposed between the plurality of light emitting areas,

the first light blocking pattern overlaps the non-light-emitting area of the second-second element area of the second area, and

the second light blocking pattern overlaps the non-light-emitting area of the second-first element area of the second area and the non-light-emitting area of the second-third element area of the second area, and

wherein the first light blocking pattern and the second light blocking pattern are disposed on different layers.

2 . The display device of claim 1 , wherein: the second light blocking pattern is disposed farther away from the display panel than the first light blocking pattern.

3 . The display device of claim 1 , wherein each of the plurality of light emitting areas in the second-third element area of the second area has a size smaller than a size of each of the plurality of light emitting areas in the second-first element area of the second area and greater than a size of each of the plurality of light emitting areas in the second-second element area of the second area.

4 . The display device of claim 1 , wherein the plurality of light emitting areas respectively in the second-first element area, the second-second element area, and the second-third element area of the second area have a same size as each other.

5 . The display device of claim 1 , wherein a number of the light emitting areas in the second-second element area of the second area is smaller than a number of the light emitting areas in the second-first element area of the second area or a number of the light emitting areas in the second-third element area of the second area.

6 . The display device of claim 1 , further comprising an anti-reflective layer disposed on the second light blocking pattern.

7 . The display device of claim 1 , further comprising a first additional light blocking pattern overlapping the second peripheral area adjacent to the second-second element area of the second area and provided integrally with the first light blocking pattern.

8 . The display device of claim 1 , further comprising a second additional light blocking pattern overlapping the second peripheral area disposed between the second-first element area and the second-third element area of the second area and provided integrally with the second light blocking pattern.

9 . The display device of claim 1 , further comprising:

an input sensor disposed on the display panel, the input sensor comprising

sensing electrodes overlapping the first peripheral area or the second peripheral area and at least one sensing insulating layer; and

a first cover layer disposed on an upper sensing insulating layer at an uppermost position of the at least one sensing insulating layer,

wherein the second light blocking pattern is disposed on the first cover layer.

10 . The display device of claim 9 , wherein the first light blocking pattern is disposed on the upper sensing insulating layer and is covered by the first cover layer.

11 . The display device of claim 9 , further comprising an additional cover layer disposed between the upper sensing insulating layer and the first cover layer to cover the sensing electrodes,

wherein the first light blocking pattern is in contact with the sensing electrodes and is covered by the additional cover layer.

12 . The display device of claim 9 , further comprising a second cover layer disposed on the first cover layer and covering the second light blocking pattern,

wherein the first cover layer and the second cover layer comprise an organic material.

13 . The display device of claim 12 , wherein the first cover layer has a thickness greater than a thickness of the second cover layer.

14 . The display device of claim 1 , further comprising an input sensor disposed on the display panel and comprising sensing electrodes overlapping the first peripheral area or the second peripheral area and at least one sensing insulating layer,

wherein the first light blocking pattern is provided integrally with the sensing electrodes.

15 . The display device of claim 14 , wherein the first light blocking pattern has a first line width greater than a line width of the sensing electrodes.

16 . The display device of claim 15 , wherein the sensing electrodes overlap the non-light-emitting area of each of the second-first element area and the second-third element area of the second area.

17 . The display device of claim 16 , wherein the sensing electrodes overlapping the second light blocking pattern and the non-light-emitting area of each of the second-first element area and the second-third element area among the sensing electrodes have a second line width smaller than the first line width.

18 . The display device of claim 17 , wherein the sensing electrodes overlapping the first area among the sensing electrodes have a third line width smaller than the second line width.

19 . The display device of claim 1 , wherein the display panel further comprises:

first light emitting elements disposed device of in each of the first-first element area of the first area and the second-first element area of the second area,

second light emitting elements disposed in each of the first-second element area of the first area and the second-second element area of the second area, and

third light emitting elements disposed in each of the first-third element area of the first area and the second-third element area of the second area, wherein the first light emitting elements, the second light emitting elements, and the third light emitting elements are for respectively providing lights having different colors, wherein each of the first light emitting elements, the second light emitting elements, and the third light emitting elements comprises a first electrode, a second electrode, and a light emitting layer disposed between the first electrode and the second electrode, and

wherein the display panel further comprises a first pixel definition layer having openings defined therethrough to expose at least a portion of the first electrode of each of the first light emitting elements, the second light emitting elements, and the third light emitting elements.

20 . The display device of claim 19 , wherein:

the display panel is to activate the first light emitting element, the second light emitting element, and the third light emitting element in the first area and

the first light emitting element, the second light emitting element, and the third light emitting element in the second area in a first operation mode, and

the display panel is to deactivate the first light emitting element, the second light emitting element, and the third light emitting element in the first area and to activate the first light emitting element, the second light emitting element, and the third light emitting element in the second area in a second operation mode.

21 . The display device of claim 19 , wherein the display panel further comprises a second pixel definition layer disposed on the first electrodes exposed through the openings of the first pixel definition layer and overlapping the non-light-emitting area of the second area.

22 . The display device of claim 21 , wherein the display panel further comprises an additional pixel definition layer disposed on the first electrodes exposed through the openings in the first area, and each of the first-first element area, the first-second element area, and the first-third element area in the first area comprises a plurality of light emitting areas separated from each other by the additional pixel definition layer.

23 . The display device of claim 22 , wherein a number of the plurality of light emitting areas of each of the second-first element area, the second-second element area, and the second-third element area of the second area is equal to a number of the plurality of light emitting areas of each of the first-first element area, the first-second element area, and the first-third element area of the first area.

24 . A display device comprising:

a display panel operating in a first mode and a second mode and comprising a first area and a second area, the first area comprising a first-first light emitting area for emitting a first color light, a first-second light emitting area for emitting a second color light, a first-third light emitting area for emitting a third color light, a first-fourth light emitting area for emitting the second color light, and a first peripheral area, the second area comprising a plurality of second-first light emitting areas for emitting the first color light, a plurality of second-second light emitting areas for emitting the second color light, a plurality of second-third light emitting areas for emitting the third color light, a plurality of second-fourth light emitting areas for emitting the second color light, and a second peripheral area;

a first light blocking pattern disposed on the second peripheral area of the second area of the display panel, the first light blocking pattern surrounding and exposing the plurality of second-second light emitting areas and the plurality of second-fourth light emitting areas when viewed in plan; and

a second light blocking pattern disposed on the second peripheral area of the second area of the display panel, the second light blocking pattern surrounding and exposing the plurality of second-first light emitting areas and the plurality of second-third light emitting areas of the second area when viewed in plan,

wherein the first light blocking pattern and the second light blocking pattern are disposed on different layers.

25 . The display device of claim 24 , wherein:

the first mode is a wide viewing mode, and

the second mode is a narrow viewing mode.

26 . The display device of claim 24 , wherein the second light blocking pattern is disposed at a higher level than the first light blocking pattern.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2022
From: LEE, HYEONBUM; CHOI, BEOHMROCK; AN, CHIWOOK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 060663/0748 →
Priority Claims (1)
KR 10-2021-0134304 · Oct 8, 2021 · national
Continuity (1)
Related Publication 20230111574A1 · Apr 13, 2023
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