IP Library Granted Patent US 12,238,978
Granted Patent B2
US 12,238,978 · App. 17/521,476 · Granted Feb 25, 2025

Display device including shock absorbing layer

Inventors: Wonwoo Choi (Yongin-si, KR); Inbae Kim (Yongin-si, KR); Donghun Nam (Yongin-si, KR); Changwoo Shim (Yongin-si, KR); Sumin An (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/124H10K50/844H10K59/40G06F3/0412H10K50/868H10K59/1213H10K59/1216H10K59/122H10K59/123H10K59/126H10K59/131H10K59/352H10K59/38H10K2102/351
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Quick Facts
Patent No.
US 12,238,978
App. No.
17/521,476
Granted
Feb 25, 2025
Kind
B2
Abstract

Provided is a display device including a substrate, a semiconductor layer on the substrate, an interlayer insulating layer on the semiconductor layer, a source electrode or a drain electrode on the interlayer insulating layer, and connected to the semiconductor layer, an organic light-emitting diode connected to the source electrode or the drain electrode, and a thin film encapsulation layer on the organic light-emitting diode, wherein, a neutral plane corresponding to an impact applied to the thin film encapsulation layer is inside or below the interlayer insulating layer.

Claims (47)

1. A display device comprising:

a substrate;

a semiconductor layer on the substrate;

a first interlayer insulating layer on the semiconductor layer;

a second interlayer insulating layer on the first interlayer insulating layer;

a source electrode or a drain electrode on the second interlayer insulating layer, and connected to the semiconductor layer;

an organic light-emitting diode connected to the source electrode or the drain electrode; and

a thin film encapsulation layer on the organic light-emitting diode,

wherein, a neutral plane is inside or below the first interlayer insulating layer or the second interlayer insulating layer, such that a compressive force on one side of the neutral plane corresponding to an impact applied to the thin film encapsulation layer causes a tensile force on another side of the neutral plane.

2. The display device of claim 1 , wherein a distance from a bottom of the substrate to a bottom of the first interlayer insulating layer is greater than a distance from an upper surface of the second interlayer insulating layer to an upper surface of the thin film encapsulation layer.

3. The display device of claim 1 , wherein the thin film encapsulation layer comprises an organic encapsulation layer, and

wherein a thickness of the organic encapsulation layer is between about 0.16 times and about 0.26 times a distance from a bottom of the substrate to an upper surface of the thin film encapsulation layer.

4. The display device of claim 1 , wherein a thickness of the first interlayer insulating layer is greater than a thickness of the second interlayer insulating layer.

5. The display device of claim 1 , wherein the second interlayer insulating layer has a structure in which an inorganic material and an organic material are sequentially stacked.

6. The display device of claim 1 , wherein the first interlayer insulating layer comprises silicon oxide.

7. The display device of claim 1 , further comprising a shock absorbing layer on the second interlayer insulating layer.

8. The display device of claim 7 , wherein the shock absorbing layer comprises an organic material.

9. The display device of claim 1 , further comprising an input detection member on the thin film encapsulation layer.

10. A display device comprising:

a substrate;

a semiconductor layer on the substrate;

an interlayer insulating layer on the semiconductor layer;

a source electrode or a drain electrode on the interlayer insulating layer, and connected to the semiconductor layer;

an organic light-emitting diode connected to the source electrode or the drain electrode; and

a thin film encapsulation layer on the organic light-emitting diode,

wherein a thickness of the substrate is between about 0.5 times and about 0.76 times a distance from a lower surface of the substrate to an upper surface of the thin film encapsulation layer.

11. The display device of claim 10 , wherein the thin film encapsulation layer comprises an organic encapsulation layer, and

wherein a thickness of the organic encapsulation layer is between about 0.16 times and about 0.26 times a distance from a bottom of the substrate to the upper surface of the thin film encapsulation layer.

12. The display device of claim 10 , wherein the interlayer insulating layer comprises:

a first interlayer insulating layer; and

a second interlayer insulating layer on the first interlayer insulating layer.

13. The display device of claim 12 , wherein a thickness of the first interlayer insulating layer is greater than a thickness of the second interlayer insulating layer.

14. The display device of claim 12 , wherein the second interlayer insulating layer has a structure in which an inorganic material and an organic material are sequentially stacked.

15. The display device of claim 12 , wherein the first interlayer insulating layer comprises silicon oxide.

16. The display device of claim 10 , further comprising a shock absorbing layer on the interlayer insulating layer.

17. The display device of claim 16 , wherein the shock absorbing layer comprises an organic material.

18. The display device of claim 10 , further comprising an input detection member on the thin film encapsulation layer.

19. A display device comprising:

a substrate;

a semiconductor layer on the substrate;

a first interlayer insulating layer on the semiconductor layer;

a second interlayer insulating layer on the first interlayer insulating layer;

a source electrode or a drain electrode on the second interlayer insulating layer, and connected to the semiconductor layer;

an organic light-emitting diode connected to the source electrode or the drain electrode; and

a thin film encapsulation layer on the organic light-emitting diode,

wherein a compressive force generated in the first interlayer insulating layer or the second interlayer insulating layer corresponding to an impact applied to the thin film encapsulation layer causes a tensile force away from the thin film encapsulation layer.

20. The display device of claim 19 , wherein the second interlayer insulating layer has a structure in which an inorganic material and an organic material are sequentially stacked.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 11, 2021
From: CHOI, WONWOO; KIM, INBAE; NAM, DONGHUN; SHIM, CHANGWOO; AN, SUMIN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 058086/0328 →
Priority Claims (1)
KR 10-2021-0047338 · Apr 12, 2021 · national
Continuity (1)
Related Publication 20220328586A1 · Oct 13, 2022
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