Display device

Patent metadata

Field	Value
Publication number	US-11740753-B2
Application number	US-202217579708-A
Country	US
Kind code	B2
Filing date	Jan 20, 2022
Priority date	Jan 22, 2021
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

According to one embodiment, a display device includes a first substrate, a second substrate, a sealant, a first electrode, an insulating film and a second electrode. The sealant bonds the first substrate and the second substrate and is provided in a peripheral area surrounding a display area. The first electrode is provided on the first substrate in the peripheral area. The insulating film covers the first electrode. The second electrode is provided on the second substrate in the peripheral area. The sealant contains a conductive member. At least one of the first electrode and the second electrode includes a plurality of fine line portions in an area where the first electrode, the insulating film, the sealant, and the second electrode are overlapped in planar view.

First claim

What is claimed is:

1. A display device comprising:
a first substrate;
a second substrate arranged opposite to the first substrate;
a sealant which bonds the first substrate and the second substrate and which is provided in a peripheral area surrounding a display area where an image is displayed;
a first electrode provided on the first substrate in the peripheral area;
an insulating film covering the first electrode; and
a second electrode provided on the second substrate in the peripheral area,
the sealant containing a conductive member, wherein
at least one of the first electrode and the second electrode includes a plurality of fine line portions in an area where the first electrode, the insulating film, the sealant, and the second electrode are overlapped in planar view,
the conductive member is a spherical conductive pearl, and
an interval between a first fine line portion included in the plurality of fine line portions and a second fine line portion adjacent to the first fine line portion is larger than a diameter of the conductive pearl.

2. The display device of claim 1 , wherein
the second electrode is electrically connected to a wiring line provided on the first substrate side by the conductive member included in the sealant.

3. The display device of claim 1 , further comprising:
a plurality of wiring lines provided on the first substrate and under the first electrode in the peripheral area.

4. The display device of claim 1 , wherein
the second electrode includes the plurality of fine line portions, and
the first electrode does not include the plurality of fine line portions.

5. The display device of claim 1 , wherein
the first electrode includes the plurality of fine line portions, and
the second electrode does not include the plurality of fine line portions.

6. The display device of claim 1 , wherein
the first electrode and the second electrode both include the plurality of fine line portions.

7. The display device of claim 6 , wherein
the plurality of fine line portions of the first electrode and the plurality of fine line portions of the second electrode are not overlapped in planar view.

8. The display device of claim 1 , wherein
the second electrode is a detection electrode.

9. The display device of claim 8 , wherein
the first electrode is a shield electrode having a predetermined fixed potential.

10. The display device of claim 1 , wherein
the first electrode is a detection electrode.

11. The display device of claim 10 , wherein
the second electrode is a shield electrode having a predetermined fixed potential.

Assignees

• Japan Display Inc

Inventors

• Ito Kaoru
• Fujisawa Akihiko

Classifications

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title