Display device

Patent metadata

Field	Value
Publication number	US-10845905-B2
Application number	US-201916242110-A
Country	US
Kind code	B2
Filing date	Jan 8, 2019
Priority date	Jan 12, 2018
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A display device in an embodiment according to the present invention includes a base member, a display part with a plurality of pixels above the base member, a touch sensor overlapping the display part, an antenna in a periphery part of the display part, and a terminal part including a plurality of terminal electrodes on an outer side of the antenna. The touch sensor includes a first sensor electrode arranged on a first surface side of a first insulating layer and having a plurality of first electrode patterns arranged in a first direction, and a second sensor electrode arranged on the first surface side of the first insulating layer and having a plurality of second electrode patterns arranged in a second direction intersecting the first direction.

First claim

What is claimed is:

1. A display device comprising:
a base member;
a display part with a plurality of pixels above the base member;
a scanning signal line driving circuit arranged above the base member and outside the display part to drive the plurality of pixels;
a touch sensor overlapping the display part;
an antenna in a periphery part of the display part;
a sealing layer covering the display part and extending to the periphery part;
a first insulating layer arranged on the sealing layer;
a first wiring and a second wiring in the periphery part of the display part; and
a terminal part including a plurality of terminal electrodes on an outer side of the antenna,
wherein
the touch sensor includes:
a first sensor electrode arranged on a first surface side of the first insulating layer and having a plurality of first electrode patterns arranged in a first direction; and
a second sensor electrode arranged on the first surface side of the first insulating layer and having a plurality of second electrode patterns arranged in a second direction intersecting the first direction,

wherein
the scanning signal line driving circuit is arranged between the base member and the first insulating layer;
a second surface side of the first insulating layer opposite to the first surface side is in contact with the sealing layer;
the plurality of first electrode patterns of the first sensor electrode are electrically connected at the first surface side of the first insulating layer;
the plurality of second electrode patterns of the second sensor electrode are electrically connected by connection wiring arranged on the second surface side of the first insulating layer;
the first wiring and the second wiring are sandwiched between the sealing layer and the first insulating layer, extends to the terminal part, and is connected to at least one of the plurality of terminal electrodes, respectively;
the first sensor electrode is electrically connected to the first wiring;
the second sensor electrode is electrically connected to the second wiring; and
the antenna is arranged on the first surface side of the first insulating layer and surrounding the display part, and at least overlaps a part of the first wiring, a part of the second wiring, and a part of the scanning signal line driving circuit interposed by the first insulating layer.

2. The display device according to claim 1 , wherein pairs of adjacent first sensor electrodes are electrically connected by a conducting layer extending from the first electrode pattern within the plurality of first electrode patterns, and pairs of adjacent second sensor electrodes are electrically connected to the connection wiring via a contact hole arranged in the first insulating layer within the plurality of second electrode patterns.

3. The display device according to claim 1 , wherein the first sensor electrode is electrically connected to the first wiring via a contact hole arranged in the first insulating layer, and the second sensor electrode is electrically connected to the second wiring via a contact hole arranged in the first insulating layer.

4. The display device according to claim 1 , wherein a first end of the antenna extends to the terminal part and is electrically connected to any one of the plurality of terminal electrodes, and a second end of the antenna is electrically connected to any one of the plurality of terminal electrodes by a third wiring arranged on the second surface side of the first insulating layer.

5. The display device according to claim 4 , further comprising a resonance capacitor is included between the first end and the second end.

6. The display device according to claim 5 , wherein a first electrode of the resonance capacitor has a comb shape, and a second electrode of the resonance capacitor has a plate shape.

7. The display device according to claim 6 , wherein the first insulating layer arranged between the first electrode and the second electrode.

8. The display device according to claim 1 , wherein the first electrode pattern and the second electrode pattern are non-translucent metals and include a through hole at a position overlapping each of the plurality of pixels respectively.

9. The display device according to claim 1 , further comprising a sealing layer,
wherein the sealing layer is included stacked with a second insulating layer, a third insulating layer and a fourth insulating layer from the first insulating layer side.

10. The display device according to claim 9 , wherein the first wiring, the second wiring, and the connection wiring are arranged between the first insulating layer and the second insulating layer.

11. The display device according to claim 10 , wherein a region is included where the second surface side of the first insulating layer and the second insulating layer are in contact.

12. The display device according to claim 9 , wherein the antenna is arranged between the first insulating layer and the second insulating layer.

13. The display device according to claim 1 , further comprising a selection circuit arranged along the second direction,
wherein the first wiring is connected to the selection circuit.

14. The display device according to claim 1 , wherein the base member has flexibility.

15. A display device comprising:
a base member;
a display part with a plurality of pixels above the base member;
a scanning signal line driving circuit arranged above the base member and outside the display part to drive the plurality of pixels;
a touch sensor overlapping the display part;
an antenna in a periphery part of the display part;
a sealing layer covering the display part and extending to the periphery part;
a first insulating layer arranged on the sealing layer;
a first wiring and a second wiring in a periphery part of the display part; and
a terminal part including a plurality of terminal electrodes on an outer side of the antenna,
wherein
the touch sensor includes:
a first sensor electrode arranged on a first surface side of the first insulating layer and having a plurality of first electrode patterns arranged in a first direction; and
a second sensor electrode arranged on the first surface side of the first insulating layer and having a plurality of second electrode patterns arranged in a second direction intersecting the first direction,

wherein
the scanning signal line driving circuit is arranged between the base member and the first insulating layer;
a second surface side of the first insulating layer opposite to the first surface side is in contact with the sealing layer;
the plurality of first electrode patterns of the first sensor electrode are electrically connected at the first surface side of the first insulating layer;
the plurality of second electrode patterns of the second sensor electrode are electrically connected by connection wiring arranged on the second surface side of the first insulating layer;
the first wiring and the second wiring are arranged on the first surface side of the first insulating layer, extends to the terminal part, and is connected to at least one of the plurality of terminal electrodes, respectively;
the first sensor electrode is electrically connected to the first wiring;
the second sensor electrode is electrically connected to the second wiring; and
the antenna is arranged between the sealing layer and the first insulating layer and surrounding the display part and overlaps with a part of the scanning signal line driving circuit, and at least overlaps a part of the first wiring and a part of the second wiring interposed by the first insula

Assignees

• Japan Display Inc

Inventors

• Kanaya Heisuke

Classifications

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F1/1698

  the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone (details of antennas disposed inside a computer H01Q1/2266) · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title