IP Library Granted Patent US 10,412,832
Granted Patent B2
US 10,412,832 · App. 15/876,835 · Granted Sep 10, 2019

Display device

Inventors: Yoshikatsu Imazeki (Tokyo, JP); Yoichi Kamijo (Tokyo, JP); Shuichi Osawa (Tokyo, JP); Yoshihiro Watanabe (Tokyo, JP)
Assignee: JAPAN DISPLAY INC.
H05K1/115G06F3/044G06F3/0412G06F3/0416H05K1/116H05K1/189H05K2201/10136
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Quick Facts
Patent No.
US 10,412,832
App. No.
15/876,835
Granted
Sep 10, 2019
Kind
B2
Abstract

According to one embodiment, the display device includes a first substrate, a second substrate and a connecting material. The first substrate includes a first basement and a first conductive layer. The second substrate includes a second basement including a first surface, a second surface and a first hole located in the non-display area, and a second conductive layer provided on the second surface. The connecting material electrically connects the first conductive layer and the second conductive layer to each other via the first hole. The connecting material covers at least partially a portion of an opening edge belonging to the second region but does not cover a portion belonging to the first region.

Claims (66)

1. A display device comprising: a display panel including a display area and a non-display area provided along an outer edge of the display area,

the display panel comprising:

a first substrate including a first basement and a first conductive layer;

a second substrate including a second basement comprising a first surface opposing and located to be spaced from the first conductive layer, a second surface on an opposite side to the first surface, a first hole located in the non-display area and penetrating between the first surface and the second surface, and a second conductive layer provided on the second surface; and

a connecting material which electrically connects the first conductive layer and the second conductive layer to each other via the first hole,

wherein

the non-display area comprises

a first region between the outer edge and a virtual line which passes through a center of the first hole at the second surface and extends along the outer edge, and

a second region located on the outer side with respect to the virtual line, and

an opening edge of the first hole at the second surface is formed the first region and the second region across the virtual line,

the connecting material covers at least partially a portion of the opening edge belonging to the second region without covering a portion of the opening edge belonging to the first region.

2. The display device of claim 1 , wherein

the second conductive layer comprises a first projection surrounding the first hole and a second projection extending from the first projection toward the first hole, and

the connecting material is in contact with at least the first projection in the second region.

3. The display device of claim 2 , wherein

the second conductive layer further comprises a third projection located on an outer side of the first projection with respect to the first hole and surrounding the first projection, and a fourth projection coupling the first projection and the third projection to each other.

4. The display device of claim 3 , wherein

the second conductive layer further comprises a fifth projection located on an outer side of the third projection with respect to the first hole and surrounding the third projection, and a sixth projection coupling the third projection and the fifth projection to each other.

5. The display device of claim 2 , wherein

the second conductive layer further comprises a third projection located on an outer side of the first projection with regard to the first hole and surrounding the first projection, and a plurality of fourth projections each coupling the first projection and the third projection to each other,

the fourth projections are arranged with a gap between each adjacent pair thereof in a circumferential direction of the first projection.

6. The display device of claim 5 , wherein

the second conductive layer further comprises a fifth projection located on an outer side of the third projection with respect to the first hole and surrounding the third projection, and a sixth projection coupling the third projection and the fifth projection to each other.

7. The display device of claim 2 , wherein

the first hole is located between the display area and one side edge of the second surface,

the second conductive layer further comprises a sixth projection which is located on the second region and an outer side of the first projection, is electrically connected to the first projection, and extends along the side edge of the second surface, and

the connecting material is in contact with at least the first projection and the sixth projection.

8. The display device of claim 1 , wherein

the second conductive layer comprises a first projection surrounding the first hole and a plurality of second projections each extending from the first projection toward the first hole,

the second projections are arranged with a gap between each adjacent pair thereof in a circumferential direction of the first hole, and

the connecting material is in contact with at least the first projection.

9. The display device of claim 8 , wherein

the second conductive layer further comprises a third projection located on an outer side of the first projection with respect to the first hole and surrounding the first projection, and a fourth projection coupling the first projection and the third projection to each other.

10. The display device of claim 9 , wherein

the second conductive layer further comprises a fifth projection located on an outer side of the third projection with respect to the first hole and surrounding the third projection, and a sixth projection coupling the third projection and the fifth projection to each other.

11. The display device of claim 8 , wherein

the second conductive layer further comprises a third projection located on an outer side of the first projection with respect to the first hole and surrounding the first projection, and a plurality of fourth projections each coupling the first projection and the third projection to each other, and

the fourth projections are arranged with a gap between each adjacent pair thereof in a circumferential direction of the first projection.

12. The display device of claim 11 , wherein

the second conductive layer further comprises a fifth projection located on an outer side of the third projection with respect to the first hole and surrounding the third projection, and a sixth projection coupling the third projection and the fifth projection to each other.

13. The display device of claim 1 , wherein

the connecting material comprises a first portion covering a circumferential surface of the first hole and a second portion covering the second region of the second surface.

14. The display device of claim 1 , wherein

the display panel further comprises a filling material which fills a hollow section of the first hole.

15. The display device of claim 1 , wherein

the display panel further comprises a second hole located in the non-display area and penetrating the first conductive layer to communicate to the first hole, and

the connecting material is in contact with an upper surface on the second substrate side of the first conductive layer and a circumferential surface of the first conductive layer in the second hole.

16. A display device comprising: a display panel including a display area and a non-display area provided along an outer edge of the display area,

the display panel comprising:

a first substrate including a first basement and a first conductive layer;

a second substrate including a second basement comprising a first surface opposing and located to be spaced from the first conductive layer, a second surface on an opposite side to the first surface, a first hole located in the non-display area and penetrating between the first surface and the second surface, and a second conductive layer provided on the second surface; and

a connecting material which electrically connects the first conductive layer and the second conductive layer to each other via the first hole,

wherein

the non-display area comprises a first region between the outer edge and a virtual line, and a second region located on the outer side with respect to the virtual line,

the virtual line passes through a point of an opening edge of the first hole on a side of the second surface, which is most close to the display area, and extends along the outer edge of the display area, and

the connecting material covers an opening edge of the first hole on the side of the second surface, and is located above the second region of the second surface without being located above the first region of the second surface.

17. A display device comprising: a display panel including a display area and a non-display area provided along an outer edge of the display area; and a light-shielding layer opposing the non-display area of the display panel,

the display panel comprising:

a first substrate including a first basement and a first conductive layer;

a second substrate including a second basement comprising a first surface opposing and located to be spaced from the first conductive layer, a second surface opposing the light-shielding layer and located on an opposite side to the first surface, and a second conductive layer provided on the second surface;

an organic insulating layer located between the first conductive layer and the second basement;

a contact hole which comprises a first hole penetrating the second basement, a second hole penetrating the first conductive layer and opposing the first hole, and a third hole penetrating the organic insulating layer and connected to the first hole and the second hole, and is covered by the light-shielding layer; and

a connecting material covered by the light-shielding layer and electrically connecting the first conductive layer and the second conductive layer via the contact hole,

wherein

the non-display area comprises a first region located on a side of the display area with respect to a virtual line which passes through the first hole and is parallel to a side edge of the outer edge of the display area, which opposes the first hole, and a second region located on an outer side with respect to the virtual line, and

the connecting material covers a portion of an opening edge of the first hole on the side of the second surface, which belongs to the second region, and is located above the second region of the second surface without being located above the first region of the second surface.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 5, 2018
From: IMAZEKI, YOSHIKATSU; KAMIJO, YOICHI; OSAWA, SHUICHI; WATANABE, YOSHIHIRO
To: JAPAN DISPLAY INC.
Reel/Frame 044831/0639 →
Priority Claims (1)
JP 2017-009475 · Jan 23, 2017 · national
Continuity (1)
Related Publication 20180212550A1 · Jul 26, 2018