# US 10,310,690 B2 · Array substrate, display apparatus, and method of inspecting sensor electrode

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- Number: US 10,310,690 B2
- Document ID: US10310690B2
- Status: Granted
- Kind: B2
- Application number: 15/609,880
- Filed: 2017-05-31
- Published: 2017-12-28
- Granted: 2019-06-04
- Earliest claimed: 2016-06-23
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Toshiaki Fukushima
- Web page: https://patentgrep.com/patent/US10310690B2

## CPC

- G02F 1/13338: {Input devices, e.g. touch panels}
- G02F 1/13458: {Terminal pads}
- G02F 1/136286: {Wiring, e.g. gate line, drain line}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)}
- G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G06F 3/0447: {Position sensing using the local deformation of sensor cells}
- G02F 1/133351: {Manufacturing of individual cells out of a plurality of cells, e.g. by dicing}
- G02F 2201/121: common or background
- G02F 2201/123: pixel
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F 2203/04105: Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

According to an aspect, an array substrate includes: a substrate; a sensor electrode disposed on the substrate, and configured to detect change of capacitance; and a pull-out line capable of being electrically coupled with the sensor electrode, and pulled out to an end portion of the substrate.

## Claims

### Claim 1

An array substrate comprising:
a substrate;
a sensor electrode disposed on the substrate, and configured to detect change of capacitance; and
a pull-out line capable of being electrically coupled with the sensor electrode, and pulled out to an end portion of the substrate,
a plurality of pads for external coupling arranged in a frame region of the substrate; and
a frame line configured to couple the sensor electrode and one of the pads for external coupling with each other, wherein
the pull-out line is coupled with the sensor electrode through the frame line and one of the external coupling pads, and
an array pitch of the pads for external coupling falls within a range of 0.02 mm to 0.6 mm.

### Claim 2 (depends on 1)

The array substrate according to claim 1, wherein the pull-out line includes a metal layer.

### Claim 3 (depends on 2)

The array substrate according to claim 2, further comprising:
a gate line; and
a source line, wherein
the metal layer includes a metal material identical to a metal material included in the gate line or the source line.

### Claim 4 (depends on 2)

The array substrate according to claim 2, further comprising:
a gate line; and
a source line, wherein
the metal layer is a layer identical to a layer of the gate line or the source line.

### Claim 5 (depends on 2)

The array substrate according to claim 2, wherein
the metal layer of the pull-out line is exposed at a cut surface of the end portion of the substrate.

### Claim 6 (depends on 1)

The array substrate according to claim 1, further comprising:
a pixel electrode;
a gate line;
a source line; and
a plurality of pads for display inspection configured to inspect one of the pixel electrode, the gate line, and the source line, wherein
an array pitch of the pads for external coupling is smaller than an array pitch of the pads for display inspection.

### Claim 7 (depends on 1)

The array substrate according to claim 1, further comprising a light-transmissive conductive layer on an uppermost surface of each of the pads for external coupling.

### Claim 8 (depends on 1)

A display apparatus in which the array substrate according to claim 1 and a counter substrate are bonded together.

### Claim 9

An array substrate comprising:
a substrate;
a sensor electrode disposed on the substrate, and configured to detect change of capacitance;
a pull-out line capable of being electrically coupled with the sensor electrode, and pulled out to an end portion of the substrate;
a plurality of pads for external coupling arranged in a frame region of the substrate; and
a frame line configured to couple the sensor electrode and one of the pads for external coupling with each other, wherein
the pull-out line is coupled with the sensor electrode through the frame line and one of the external coupling pads, and
a width of each of the pad for external coupling falls within a range of 0.01 mm to 0.50 mm.

### Claim 10 (depends on 9)

The array substrate according to claim 9, wherein the pull-out line includes a metal layer.

### Claim 11 (depends on 10)

The array substrate according to claim 10, further comprising:
a gate line; and
a source line, wherein
the metal layer includes a metal material identical to a metal material included in the gate line or the source line.

### Claim 12 (depends on 10)

The array substrate according to claim 10, further comprising:
a gate line; and
a source line, wherein
the metal layer is a layer identical to a layer of the gate line or the source line.

### Claim 13 (depends on 10)

The array substrate according to claim 10, wherein
the metal layer of the pull-out line is exposed at a cut surface of the end portion of the substrate.

### Claim 14 (depends on 9)

The array substrate according to claim 9, further comprising: a pixel electrode;
a gate line;
a source line; and
a plurality of pads for display inspection configured to inspect one of the pixel electrode, the gate line, and the source line, wherein
an array pitch of the pads for external coupling is smaller than an array pitch of the pads for display inspection.

### Claim 15 (depends on 9)

The array substrate according to claim 9, further comprising a light-transmissive conductive layer on an uppermost surface of each of the pads for external coupling.

### Claim 16 (depends on 9)

A display apparatus in which the array substrate according to claim 9 and a counter substrate are bonded together.