# US 2016/0259476 A1 · Display device

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- Number: US 2016/0259476 A1
- Document ID: US20160259476A1
- Status: Published application
- Kind: A1
- Application number: 15/152,934
- Filed: 2016-05-12
- Published: 2016-09-08
- Earliest claimed: 2013-10-08
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Shigesumi ARAKI; Mitsutaka Okita; Kazuhiro Nishiyama; Yoshitoshi Kida; Koji Ishizaki; Kohei Azumi; Hiroshi Mizuhashi
- Web page: https://patentgrep.com/patent/US20160259476A1

## CPC

- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/134309: {characterised by their geometrical arrangement}
- G02F 1/13439: {characterised by their electrical, optical, physical properties; materials therefor; method of making}
- G02F 1/136286: {Wiring, e.g. gate line, drain line}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)}
- G09G 3/3677: {suitable for active matrices only}
- G09G 3/3696: {Generation of voltages supplied to electrode drivers}
- G02F 1/134345: {Subdivided pixels, e.g. for grey scale or redundancy}
- G02F 1/134372: {for fringe field switching [FFS] where the common electrode is not patterned}
- G02F 1/13456: {Cell terminals located on one side of the display only}
- G02F 2201/121: common or background
- G02F 2201/123: pixel
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F 2203/04107: Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
- G06F 2203/04111: 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
- G09G 2300/0809: Several active elements per pixel in active matrix panels
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- 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
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.

## Claims

### Claim 1

A display device including a plurality of pixels, comprising:
a first substrate;
a second substrate; and
a plurality of subpixels composing the plurality of pixels,
wherein the first substrate comprises;
a plurality of gate wirings extending in a first direction;
a plurality of source wirings extending in a second direction that is different from the first direction;
a plurality of common electrodes extending in the second direction, which is arranged in the first direction via a slit; and
a plurality of metal wirings arranged in the first direction,
the plurality of subpixels include a first subpixel having a first color, and a second subpixel adjacent each other in the first direction;
the plurality of common electrodes includes a first common electrode and a second common electrode adjacent each other via the slit;
the first common electrode overlaps the first subpixel and the second common electrode overlaps the second subpixel;
the plurality of the metal wirings contact the plurality of common electrodes;
the slit;
the first common electrode overlaps the first subpixel and the second common electrode overlaps the second subpixel;
the plurality of the metal wirings contact the plurality of common electrodes;
one of the source wirings overlaps the slit;
a material of the common electrode is a transparent conductive material; and
a material of the metal wiring is a light shielding conductive material.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein the slit extends in the second direction, and a width of the slit is smaller than that of the metal wiring.

### Claim 3 (depends on 1)

The display device according to claim 1,
wherein the plurality of the metal wirings includes a first metal wiring, a second metal wiring and a third metal wiring,
the second metal wiring is adjacent to the first metal wiring and the second metal wiring each other in the first direction,
the first metal wiring, the second metal wiring and the third metal wiring contact with the first common electrode, and
a distance between the second metal wiring and the third metal wiring is larger than a distance between the first metal wiring and the second metal wiring.

### Claim 4 (depends on 1)

The display device according to claim 1,
wherein the plurality of the metal wirings includes a first metal wiring, a second metal wiring and a fourth metal wiring,
the first metal wiring is adjacent to the second metal wiring and the fourth metal wiring each other in the first direction,
the first metal wiring and the second metal wiring contact with the first common electrode, and the fourth metal wiring contact with the second common electrode, and
a distance between the first metal wiring and the fourth metal wiring is larger than a distances between the first metal wiring and the second metal wiring.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein the slit includes a first part extending in the first direction and a second part extending in the second direction, and the first part and the second part are connected in turn.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein a shape in planar view of the slit macroscopically extends in a direction that intersects in the first direction and the second direction, and microscopically extends in the first direction and the second direction.

### Claim 7 (depends on 1)

The display device according to claim 1, wherein the common electrode serves functions as an electrode of touch detection.

### Claim 8 (depends on 7)

The display device according to claim 7, wherein the second substrate includes a detection electrode extending in the first direction.

### Claim 9 (depends on 1)

The display device according to claim 1, further comprising a light shield layer interposed between the first subpixel and the second subpixel in planar view, wherein the light shield layer overlaps with the slit.

### Claim 10 (depends on 1)

The display device according to claim 1, wherein the light shield layer overlaps with the metal wirings, and a width of the metal wiring is narrower than a width of the light shield layer.

### Claim 11 (depends on 1)

The display device according to claim 1, wherein the metal wirings do not overlap with the slit.

### Claim 12 (depends on 1)

The display device according to claim 1, further comprising:
a liquid crystal layer interposed between the first and the second substrates; and
a pixel electrode that drives the liquid crystal layer with the common electrode.

### Claim 13 (depends on 1)

The display device according to claim 1,
wherein the subpixels include a third subpixel having a white color,
the first subpixel is adjacent to the third subpixel each other in the first direction, and
the slit does not arranged between the first subpixel and the third subpixel in planar view.