# US 11,112,669 B2 · Array substrate and display panel

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- Number: US 11,112,669 B2
- Document ID: US11112669B2
- Status: Granted
- Kind: B2
- Application number: 16/623,770
- Filed: 2019-12-05
- Published: 2021-07-08
- Granted: 2021-09-07
- Earliest claimed: 2019-12-05
- Assignees: Tcl China Star Optoelectronics Technology Co., Ltd.
- Applicants: TCL China Star Optoelectronics Technology Co., Ltd.
- Inventors: Junzheng Liu; Kai Hu; Rong Zhao
- Web page: https://patentgrep.com/patent/US11112669B2

## CPC

- G02F 1/13458: {Terminal pads}
- G02F 1/136295: {Materials; Compositions; Manufacture processes}
- G02F 1/1345: Conductors connecting electrodes to cell terminals
- G02F 1/13629: {Multilayer wirings}
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/60: wherein the TFTs are in active matrices
- 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
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

The present invention provides an array substrate and a display panel. The display panel includes the array substrate, a non-display region of the array substrate includes a fan-out region and a bonding pad region, and each fan-out lines of the fan-out region includes a first metal layer, a second metal layer, a third metal layer, and a fourth metal layer, which are arranged in a stack and are different materials.

## Claims

### Claim 1

An array substrate, comprising a display region and a non-display region;
wherein the non-display region comprises a fan-out region and a bonding pad region;
the fan-out region comprises a plurality of fan-out lines, and the bonding pad region comprises a plurality of bonding pads, wherein each of the fan-out lines is one-to-one connected to one of the bonding pads;
each of the fan-out lines comprises a first metal layer, a second metal layer disposed on the first metal layer, a third metal layer disposed on the second metal layer, and a fourth metal layer disposed on the third metal layer; and
wherein materials of the first metal layer, the second metal layer, the third metal layer, and the fourth metal layer are all different.

### Claim 2 (depends on 1)

The array substrate as claimed in claim 1, wherein each of the fan-out lines comprises a fifth metal layer disposed on the fourth metal layer.

### Claim 3 (depends on 2)

The array substrate as claimed in claim 2, wherein a material of the fifth metal layer is same as the material of the third metal layer.

### Claim 4 (depends on 1)

The array substrate as claimed in claim 1, wherein the material of the first metal layer comprises one of Ti, Cr, or Zr.

### Claim 5 (depends on 1)

The array substrate as claimed in claim 1, wherein the material of the second metal layer comprises Ni.

### Claim 6 (depends on 1)

The array substrate as claimed in claim 1, wherein the material of the third metal layer comprises Mo.

### Claim 7 (depends on 1)

The array substrate as claimed in claim 1, wherein the material of the fourth metal layer comprises Cu or Al.

### Claim 8 (depends on 1)

The array substrate as claimed in claim 1, wherein the fan-out region further comprises
an insulating layer disposed on both sides above the fan-out lines, wherein the fan-out lines are exposed in a middle portion of the insulating layer;
a passivation layer disposed on the insulating layer, wherein the fan-out lines are exposed in a middle portion of the passivation layer; and
an electrode layer disposed on the passivation layer and the fan-out lines.

### Claim 9 (depends on 8)

The array substrate as claimed in claim 8, wherein the fan-out region further comprises a barrier layer disposed on the electrode layer.

### Claim 10 (depends on 1)

A display panel, comprising the array substrate as claimed in claim 1.