IP Library Granted Patent US 10,963,079
Granted Patent B2
US 10,963,079 · App. 15/817,993 · Granted Mar 30, 2021

Display device

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Quick Facts
Patent No.
US 10,963,079
App. No.
15/817,993
Granted
Mar 30, 2021
Kind
B2
Abstract

According to one embodiment, a display device including a touch panel, a display panel opposed to the touch panel and an insulating material is provided. The touch panel includes a first substrate which is provided throughout a sensor area and a peripheral area, a first electrode and a second electrode, and an opposed portion which is located in an outermost periphery of the sensor area and where the first electrode and the second electrode are opposed to each other. The insulating material is located in a region overlapping the opposed portion or on a peripheral area side with respect to the opposed portion and contacts the touch panel and the display panel.

Claims (31)

1. A display device comprising: a touch panel comprising a first substrate, a first electrode and a second electrode located in a sensor area, a laminated body having the first electrode, the second electrode, and a first insulating layer between the first electrode and the second electrode, and a second insulating layer covering the laminated body, the laminated body being located on the first substrate; a display panel comprising a polarizer opposed to the touch panel; and an insulating material overlapping the laminated body, contacting the second insulating layer, and a side surface of the polarizer, and not contacting the first electrode and the second electrode;

a third electrode and a fourth electrode located in the sensor area; a second laminated body having the third electrode, the fourth electrode, and a third insulating layer between the third electrode and the fourth electrode, the second insulating layer covering the second laminated body; and an attachment layer attaching the second insulating layer and the polarizer in the sensor area, and overlapping at least the second laminated body, wherein, the insulating material has a shape of a ring surrounding the attachment layer and does not overlap the second laminated body.

2. The display device of claim 1 , further comprising

an attachment layer attaching the touch panel and the display panel in the sensor area, wherein

the insulating material is formed of a material different from a material of the attachment layer.

3. The display device of claim 2 , wherein

the insulating material contacts the attachment layer.

4. The display device of claim 1 , wherein

the touch panel further comprises an outer peripheral line provided in a peripheral area on the first substrate and electrically connected to either the first electrode or the second electrode, and a protection film overlapping the outer peripheral line,

the protection film has an opening portion opposed to the sensor area, and

the laminated body overlaps the opening portion.

5. The display device of claim 4 , wherein

a thickness of the insulating material is greater than a thickness of the protection film in a thickness direction of the display device.

6. The display device of claim 4 , wherein

the insulating material contacts the protection film.

7. The display device of claim 6 , further comprising

an attachment layer attaching the touch panel and the display panel in the sensor area, wherein

the insulating material contacts the attachment layer.

8. The display device of claim 4 , further comprising

a black insulating layer provided between the first substrate and the outer peripheral line.

9. The display device of claim 1 , wherein

the insulating material has a shape of a ring overlapping an outermost periphery of the sensor area.

10. The display device of claim 1 , wherein

the display panel comprises a second substrate, and a conductive layer located between the second substrate and the polarizer, and

the conductive layer has a ground potential.

11. The display device of claim 1 , further comprising

an attachment layer attaching the polarizer and the touch panel, wherein

the insulating material contacts a side surface of the attachment layer.

12. The display device of claim 1 , wherein

the polarizer has a first side surface extending in a first direction, and

the insulating material contacts an entire area of the first side 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 Jan 9, 2018
From: AOKI, KINICHI; MIYASHITA, HIROMASA
To: JAPAN DISPLAY INC.
Reel/Frame 044576/0121 →