IP Library › Granted Patent US 12,225,762
Granted Patent B2
US 12,225,762 · App. 17/523,345 · Granted Feb 11, 2025

Display device

Inventors: Kwang Soo Bae (Yongin-si, KR); Beomsoo Park (Seongnam-si, KR); Minjeong Oh (Gimpo-si, KR); Youngje Cho (Hwaseong-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K50/856H10K50/844H10K59/38H10K59/40
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Quick Facts
Patent No.
US 12,225,762
App. No.
17/523,345
Granted
Feb 11, 2025
Kind
B2
Abstract

A display device includes a substrate, a sub-pixel structure, a light blocking member, and a reflective member. A display area including a sub-pixel area is defined on the substrate. The sub-pixel structure is disposed in the sub-pixel area on the substrate. The light blocking member is disposed over the sub-pixel structure, and a first opening is defined in a portion of the light blocking member which overlaps the sub-pixel structure. The reflective member is disposed between the light blocking member and the sub-pixel structure, and the reflective member surrounds the sub-pixel structure and the first opening.

Claims (34)

1. A display device comprising:

a substrate on which a display area including a sub-pixel area is defined;

a sub-pixel structure disposed in the sub-pixel area on the substrate;

a light blocking member disposed over the sub-pixel structure, wherein a first opening is defined in a portion of the light blocking member which overlaps the sub-pixel structure; and

a reflective member disposed between the light blocking member and the sub-pixel structure, wherein the reflective member surrounds the sub-pixel structure and the first opening, and a sidewall defining a major surface plane of the reflective member is orthogonal to a top surface defining the substrate.

2. The display device of claim 1 , wherein the reflective member does not overlap the first opening in a thickness direction of the substrate.

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

a support member disposed between the light blocking member and the sub-pixel structure, wherein a second opening is defined in the support member to overlap the first opening.

4. The display device of claim 3 , wherein a side wall of the support member, which defines the second opening, makes contact with the reflective member.

5. The display device of claim 4 , wherein the side wall of the support member is orthogonal to a top surface of the support member.

6. The display device of claim 3 , wherein the second opening is larger than the first opening.

7. The display device of claim 3 , further comprising:

an insulating layer which covers the reflective member and the support member over the sub-pixel structure.

8. The display device of claim 7 , wherein the light blocking member makes contact with a top surface of the insulating layer.

9. The display device of claim 3 , wherein the sub-pixel structure includes:

a lower electrode;

a light emitting layer disposed on the lower electrode, wherein the light emitting layer emits a light; and

an upper electrode disposed on the light emitting layer,

wherein a part of the light emitted from the light emitting layer is reflected from the reflective member.

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

a pixel defining layer disposed on the lower electrode, wherein an opening is defined in the pixel defining layer to expose a part of a top surface of the lower electrode.

11. The display device of claim 10 , wherein a virtual line extending along a side wall of the pixel defining layer, which defines the opening of the pixel defining layer, passes through the support member.

12. The display device of claim 10 , wherein each of the light blocking member and the pixel defining layer has an opaque color.

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

a thin film encapsulation structure disposed between the sub-pixel structure and the reflective member.

14. The display device of claim 13 , wherein the thin film encapsulation structure includes:

a first inorganic thin film encapsulation layer;

an organic encapsulation layer disposed on the first inorganic thin film encapsulation layer; and

a second inorganic thin film encapsulation layer disposed on the organic encapsulation layer.

15. The display device of claim 13 , further comprising:

a touch sensing structure disposed between the thin film encapsulation structure and the reflective member.

16. The display device of claim 15 , wherein the touch sensing structure makes contact with a top surface of the thin film encapsulation structure.

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

a color filter disposed on the light blocking member, wherein the color filter fills the first opening.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 26, 2023
From: BAE, KWANG SOO; PARK, BEOMSOO; OH, MINJEONG; CHO, YOUNGJE
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 063448/0398 →
Priority Claims (1)
KR 10-2020-0150094 · Nov 11, 2020 · national
Continuity (1)
Related Publication 20220149333A1 · May 12, 2022
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