IP Library Granted Patent US 10,222,669
Granted Patent B2
US 10,222,669 · App. 15/661,577 · Granted Mar 5, 2019

Display device

Inventor: Yoshikatsu Imazeki (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/136286G02F1/1339G02F1/13338G02F1/133345G02F1/133528G02F1/136204G02F1/1368G02F1/133512G02F2001/13629G02F2001/133334G02F2001/136295G02F2201/42G02F2201/501G02F2202/22G02F2202/28
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Quick Facts
Patent No.
US 10,222,669
App. No.
15/661,577
Granted
Mar 5, 2019
Kind
B2
Abstract

According to one embodiment, a display device includes first and second substrates, a display function layer, a polarizer, and a connecting material. The first substrate includes a first conductive layer. The second substrate includes a basement having first and second surfaces. The display function layer is disposed between the substrates. The polarizer is disposed above the second surface and includes a second conductive layer. The connecting material electrically connects the first and second conductive layers. The basement has a first hole. The polarizer has a second hole. The connecting material contacts the first and second conductive layers via the first and second holes.

Claims (60)

1. A display device comprising:

a first substrate which includes a first conductive layer;

a second substrate which includes a basement which has a first surface opposed to the first substrate and a second surface opposite to the first surface;

a display function layer between the first substrate and the second substrate;

a polarizer which is disposed above the second surface of the basement and includes a second conductive layer; and

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

the basement has a first hole,

the polarizer has a second hole which communicates with the first hole, and

the connecting material is in contact with the first conductive layer and the second conductive layer via the first hole and the second hole.

2. The display device of claim 1 , further comprising an insulating layer between the first conductive layer and the basement, wherein

the insulating layer has a third hole which communicates with the first hole and the second hole, and

the connecting material is in contact with the first conductive layer and the second conductive layer via the third hole.

3. The display device of claim 2 , wherein the insulating layer includes a sealant which attaches the first substrate and the second substrate to each other.

4. The display device of claim 2 , wherein

the first conductive layer has a fourth hole which communicates with the third hole, and a first area which is exposed from the insulating layer in a circumference of the third hole, and

the connecting material is in contact with an inner surface of the fourth hole and with the first area.

5. The display device of claim 1 , wherein

the second surface of the basement includes a second area which is exposed from the polarizer in a circumference of the first hole, and

the connecting material is in contact with an inner surface of the first hole and with the second area.

6. The display device of claim 1 , wherein the second conductive layer is a conductive adhesive layer which attaches the polarizer to the basement and contains a conductive material.

7. The display device of claim 6 , wherein the polarizer includes the second conductive layer, a first protection layer, a polarization layer, a second protection layer, and a coat layer in order from a second substrate side.

8. The display device of claim 1 , wherein

the polarizer includes the second conductive layer, and a first layer and a second layer between which the second conductive layer is sandwiched,

the second conductive layer includes at least one of a third area which is exposed from the first layer and a fourth area which is exposed from the second layer, in the second hole, and

the connecting material is in contact with at least one of the third area and the fourth area.

9. The display device of claim 1 , further comprising a protection material which covers the connecting material and with which the first hole and the second hole are filled.

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

a cover member opposed to the polarizer; and

an adhesive layer which attaches the cover member and the polarizer to each other, wherein

the protection material is covered with the adhesive layer.

11. The display device of claim 10 , wherein

the first hole and the second hole are provided in a surrounding area which surrounds a display area where an image is displayed, and

the cover member includes a light-shielding layer opposed to the surrounding area.

12. A display device comprising:

a first substrate which includes a first conductive layer;

a second substrate which includes a basement which has a first surface opposed to the first substrate and a second surface opposite to the first surface;

a display function layer between the first substrate and the second substrate;

a second conductive layer which is disposed above the second surface of the basement and is opposed to a display area where an image is displayed;

a polarizer which includes the second conductive layer; and

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

the basement has a first hole,

the polarizer has a second hole which communicates with the first hole,

the connecting material is in contact with the first conductive layer and the second conductive layer via the first hole and the second hole, and

the first conductive layer is grounded.

13. The display device of claim 12 , wherein the first conductive layer surrounds the display area.

14. The display device of claim 12 , further comprising a wiring substrate mounted on the first substrate, wherein

the first conductive layer is electrically connected to the wiring substrate.

15. The display device of claim 12 , further comprising an insulating layer between the first conductive layer and the basement, wherein

the insulating layer has a third hole which communicates with the first hole, and

the connecting material is in contact with the first conductive layer and the second conductive layer via the third hole.

16. The display device of claim 15 , wherein

the insulating layer includes a sealant which attaches the first substrate and the second substrate to each other.

17. The display device of claim 12 , further comprising a protection material which covers the connecting material and with which the first hole and the second hole are filled.

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

a cover member opposed to the polarizer; and

an adhesive layer which attaches the cover member and the polarizer to each other, wherein

the protection material is covered with the adhesive layer.

19. The display device of claim 18 , wherein

the first hole and the second hole are provided in a surrounding area which surrounds the display area, and

the cover member includes a light-shielding layer opposed to the surrounding area.

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 Jul 28, 2017
From: IMAZEKI, YOSHIKATSU
To: JAPAN DISPLAY INC.
Reel/Frame 043123/0759 →
Priority Claims (1)
JP 2016-149577 · Jul 29, 2016 · national
Continuity (1)
Related Publication 20180031939A1 · Feb 1, 2018