IP Library Granted Patent US 12,652,942
Granted Patent B2
US 12,652,942 · App. 18/063,561 · Granted Jun 9, 2026

Display device including light blocking portion and protrusion

Inventors: Gee-Bum Kim (Seoul, KR); Bokwang Song (Hwaseong-si, KR); Kwang Soo Bae (Yongin-si, KR); Dae-Young Lee (Seoul, KR); Min Oh Choi (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K65/00H10K59/126H10K59/38H10K59/873G06V10/14G06V10/17G06V40/1318H10K50/813H10K59/12H10K59/35H10K59/352H10K59/40
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Quick Facts
Patent No.
US 12,652,942
App. No.
18/063,561
Granted
Jun 9, 2026
Kind
B2
Abstract

A display device includes: a display panel to display an image; and a light blocking layer over the display panel. The display panel includes: a base layer; and an element layer over the base layer, the element layer including a light emitting element, a light receiving element, and an element defining film between the light emitting element and the light receiving element. The light blocking layer includes: a light blocking portion overlapping with the element defining film in a plan view, the light blocking portion having a first light blocking opening overlapping with the light emitting element, and a second light blocking opening overlapping with the light receiving element; and a protrusion protruding from the light blocking portion toward the element defining film.

Claims (82)

1 . A display device comprising:

a display panel configured to display an image; and

a light blocking layer over the display panel,

wherein the display panel comprises:

a base layer; and

an element layer over the base layer, the element layer comprising a light emitting element, a light receiving element, and an element defining film between the light emitting element and the light receiving element, and

wherein the light blocking layer comprises:

a light blocking portion overlapping with the element defining film, the light blocking portion having a first light blocking opening overlapping with the light emitting element, and a second light blocking opening overlapping with the light receiving element; and

a protrusion protruding from the light blocking portion toward the element defining film.

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

an input sensing layer between the display panel and the light blocking layer.

3 . The display device of claim 2 , wherein the input sensing layer comprises:

a conductive layer; and

an insulating layer on the conductive layer.

4 . The display device of claim 3 , wherein the insulating layer comprises a groove corresponding to the protrusion, and

wherein the protrusion is accommodated in the groove.

5 . The display device of claim 1 , wherein the protrusion is located between the first light blocking opening and the second light blocking opening.

6 . The display device of claim 5 , wherein the protrusion surrounds the second light blocking opening.

7 . The display device of claim 1 , wherein the element defining film comprises:

a first defining area adjacent to the light receiving element; and

a second defining area between the light emitting element and the first defining area, and

wherein the protrusion is located at the first defining area.

8 . The display device of claim 7 , wherein the first light blocking opening and the second light blocking opening are located along a first reference direction, and

wherein a first width of the first defining area in the first reference direction is equal to a second width of the second defining area in the first reference direction.

9 . The display device of claim 8 , wherein the first defining area comprises:

a first area adjacent to the second defining area;

a second area adjacent to the light receiving element; and

a third area between the first area and the second area, and

wherein the protrusion overlaps with the first area and the third area.

10 . The display device of claim 9 , wherein the protrusion does not overlap with the second area.

11 . The display device of claim 9 , wherein the light receiving element has a third width in the first reference direction, and

wherein the protrusion has a width in the first reference direction that is smaller than or equal to half of the third width.

12 . The display device of claim 11 , wherein the protrusion does not overlap with the second light blocking opening.

13 . The display device of claim 9 , wherein the light receiving element has a third width in the first reference direction, the light emitting element has a fourth width in the first reference direction, and the protrusion protrudes toward the element defining film in a second reference direction, and

wherein a height of the protrusion in the second reference direction is proportional to half of a difference between the fourth width and the third width.

14 . The display device of claim 9 , wherein the protrusion protrudes toward the element defining film in a second reference direction, and

wherein a width of the protrusion in the first reference direction is greater than a height of the protrusion in the second reference direction.

15 . The display device of claim 9 , wherein the protrusion comprises a first sub-protrusion, and a second sub-protrusion spaced from the first sub-protrusion.

16 . The display device of claim 15 , wherein the first sub-protrusion has a first sub-width in the first reference direction, the second sub-protrusion has a second sub-width in the first reference direction, the first sub-protrusion and the second sub-protrusion are spaced from each other in the first reference direction by a third sub-width, and the light receiving element has a third width in the first reference direction, and

wherein a sum of the first sub-width, the second sub-width, and the third sub-width is smaller than or equal to half of the third width.

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

a color filter overlapping with the light emitting element and the light receiving element.

18 . The display device of claim 1 , wherein the display panel further comprises an encapsulation layer on the element layer.

19 . The display device of claim 18 , wherein the protrusion protrudes toward the encapsulation layer.

20 . The display device of claim 1 , wherein the display panel further comprises a circuit layer between the base layer and the element layer, and

wherein the circuit layer comprises:

a pixel drive circuit electrically connected with the light emitting element, and configured to control an operation of the light emitting element; and

a sensing drive circuit electrically connected with the light receiving element, and configured to control an operation of the light receiving element.

21 . A display device comprising:

a display panel configured to display an image;

an input sensing layer on the display panel; and

a color filter layer on the input sensing layer,

wherein the display panel comprises:

a base layer; and

an element layer over the base layer, the element layer comprising a light emitting element, a light receiving element, and an element defining film between the light emitting element and the light receiving element,

wherein the color filter layer comprises a color filter overlapping with the light emitting element and the light receiving element, and a light blocking layer, and

wherein the light blocking layer comprises:

a light blocking portion overlapping with the element defining film; and

a protrusion protruding toward the element defining film, and overlapping with the element defining film.

22 . The display device of claim 21 , wherein the input sensing layer comprises:

a conductive layer on the display panel; and

a first insulating layer on the conductive layer,

wherein the first insulating layer comprises a first groove corresponding to the protrusion, and

wherein the protrusion is accommodated in the first groove.

23 . The display device of claim 21 , wherein the input sensing layer comprises:

a conductive layer on the display panel;

a first insulating layer on the conductive layer; and

a second insulating layer on the first insulating layer,

wherein the second insulating layer comprises a second groove corresponding to the protrusion, and

wherein the protrusion is accommodated in the second groove.

24 . The display device of claim 21 , wherein the display panel further comprises a circuit layer between the base layer and the element layer, and

wherein the circuit layer comprises:

a pixel drive circuit electrically connected with the light emitting element, and configured to control an operation of the light emitting element; and

a sensing drive circuit electrically connected with the light receiving element, and configured to control an operation of the light receiving element.

25 . The display device of claim 21 , wherein the color filter comprises:

a first sub-color filter overlapping with the light emitting element; and

a second sub-color filter overlapping with the light receiving element, and

wherein the protrusion is located between the first sub-color filter and the second sub-color filter.

26 . The display device of claim 25 , wherein the protrusion is adjacent to the second sub-color filter.

27 . The display device of claim 26 , wherein the protrusion surrounds the second sub-color filter.

28 . The display device of claim 21 , wherein the display panel further comprises an encapsulation layer on the element layer.

29 . The display device of claim 28 , wherein the input sensing layer is directly on the encapsulation layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2022
From: KIM, GEE-BUM; SONG, BOKWANG; BAE, KWANG SOO; LEE, DAE-YOUNG; CHOI, MIN OH
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 062171/0552 →
Priority Claims (1)
KR 10-2022-0018359 · Feb 11, 2022 · national
Continuity (1)
Related Publication 20230263039A1 · Aug 17, 2023
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