IP Library Granted Patent US 10,128,463
Granted Patent B2
US 10,128,463 · App. 15/812,485 · Granted Nov 13, 2018

Display device

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Quick Facts
Patent No.
US 10,128,463
App. No.
15/812,485
Granted
Nov 13, 2018
Kind
B2
Abstract

A display device, including a display region formed of a plurality of pixels and a frame region formed on an outer side of the display region, includes a sealing film configured to cover the display region, a blocking portion formed in the frame region surrounding the display region, and buffering portions formed at least at two positions so as to be separated from each other on at least one straight line path extending from the display region to reach the blocking portion. In one embodiment of the present invention, the buffering portions have a wave shape in plan view.

Claims (31)

1. A display device, including a display region formed of a plurality of pixels and a frame region formed on an outer side of the display region, comprising:

a sealing film configured to cover the display region;

a blocking portion formed in the frame region surrounding the display region; and

buffering portions formed at least at two positions so as to be separated from each other on at least one straight line path extending from the display region to reach the blocking portion, wherein

the buffering portions include a first film in a same layer in which a planarizing film is positioned between a circuit layer and an anode electrode.

2. The display device according to claim 1 , wherein the buffering portions have a wave shape in plan view.

3. The display device according to claim 1 , wherein the buffering portions are arranged at a predetermined interval in plan view.

4. The display device according to claim 1 , wherein the buffering portions have a gap at a corner of the frame region.

5. The display device according to claim 1 , wherein the buffering portions are formed lower than the blocking portion in sectional view.

6. The display device according to claim 1 , wherein the buffering portions formed at the two positions so as to be separated from each other are formed so as to be higher on an inner side in sectional view.

7. The display device according to claim 1 , wherein the buffering portions include a second film in a same layer in which a rib is positioned, the rib dividing the plurality of pixels.

8. The display device according to claim 7 , wherein the buffering portions are laminate of the first film and the second film.

9. The display device according to claim 1 , wherein the blocking portion includes the first film.

10. The display device according to claim 9 , wherein the blocking portion includes a second film in a same layer in which a rib is positioned, the rib dividing the plurality of pixels.

11. The display device according to claim 10 , wherein the blocking portion is laminate of the first film and the second film.

12. A display device, including a display region formed of a plurality of pixels and a frame region formed on an outer side of the display region, comprising:

a pixel comprising a pixel circuit and a light emitting element corresponding to the pixel circuit;

a sealing film configured to cover the display region and the frame region;

a substrate having the pixel formed thereon;

a blocking portion formed in the frame region so as to upwardly protrude; and

two buffering portions formed between the display region and the blocking portion so as to be separated from each other and to protrude toward the sealing film side, wherein

the two buffering portions include a first film in a same layer in which a planarizing film is positioned between a circuit layer and an anode electrode.

13. The display device according to claim 12 , wherein the blocking portion includes the first film.

14. The display device according to claim 13 , wherein the blocking portion includes a second film in a same layer in which a rib is positioned, the rib dividing the plurality of pixels.

15. The display device according to claim 14 , wherein the blocking portion is laminate of the first film and the second film.

16. The display device according to claim 12 ,

wherein the sealing film comprises a lower layer barrier film, an upper layer barrier film, and a sealing planarizing film formed between the lower layer barrier film and the upper layer barrier film, and

wherein the sealing planarizing film is thinner in the frame region than in the display region.

17. The display device according to claim 16 , wherein the sealing film has a thickness that is gradually decreased toward an end of the substrate.

18. The display device according to claim 12 , wherein the two buffering portions include a second film in a same layer in which a rib is positioned, the rib dividing the plurality of pixels.

19. The display device according to claim 18 , wherein the two buffering portions are laminate of the first film and the second film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2026
From: MAGNOLIA WHITE CORPORATION
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 074188/0280 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Cited By (1)
US 12,402,517