# US 2021/0242379 A1 · Display panel and manufacturing method thereof

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- Number: US 2021/0242379 A1
- Document ID: US20210242379A1
- Status: Published application
- Kind: A1
- Application number: 16/987,374
- Filed: 2020-08-06
- Published: 2021-08-05
- Earliest claimed: 2020-01-30
- Assignees: Au Optronics Corporation
- Applicants: Au Optronics Corporation
- Inventors: Chung-Chan Liu
- Web page: https://patentgrep.com/patent/US20210242379A1

## CPC

- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10W 90/00: Package configurations
- G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED]
- H10H 20/01: Manufacture or treatment
- H10H 20/8506: {Containers}
- H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout}
- H10H 20/0364: {of interconnections}
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- 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 panel including an array substrate, a first sub-pixel, a second sub-pixel, and a first light-emitting diode is provided. The array substrate includes a first connection pad and a second connection pad. The first sub-pixel includes a first driving unit electrically connected to the first connection pad. The second sub-pixel includes a second driving unit electrically connected to the second connection pad. The first light-emitting diode completely overlaps and is physically isolated from the second connection pad. The first light-emitting diode is not completely overlapped and is electrically connected to the first connection pad. A manufacturing method of a display panel is also provided.

## Claims

### Claim 1

A display panel, comprising:
an array substrate comprising a first connection pad and a second connection pad;
a first sub-pixel comprising a first driving unit electrically connected to the first connection pad;
a second sub-pixel comprising a second driving unit electrically connected to the second connection pad; and
a first light-emitting diode completely overlapping and physically isolated from the second connection pad, and not completely overlapping and electrically connected to the first connection pad.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein the array substrate further comprises a third connection pad, and the display panel further comprises:
a third sub-pixel comprising a third driving unit electrically connected to the third connection pad, wherein the first light-emitting diode completely overlaps and is physically isolated from the third connection pad.

### Claim 3 (depends on 2)

The display panel according to claim 2, wherein a distance between any two of the first connection pad, the second connection pad and the third connection pad is smaller than a distance between any two of the first sub-pixel, the second sub-pixel and the third sub-pixel.

### Claim 4 (depends on 2)

The display panel according to claim 2, wherein in a direction, the maximum dimension of the first light-emitting diode is larger than a distance between any two of the first connection pad, the second connection pad, and the third connection pad.

### Claim 5 (depends on 2)

The display panel according to claim 2, wherein the first connection pad, the second connection pad, and the third connection pad are connected as a triangle from a geometric center in a vertical projection direction of the array substrate.

### Claim 6 (depends on 1)

The display panel according to claim 1, further comprising:
a connection line covering the first light-emitting diode and is electrically connected to the first light-emitting diode and the first connection pad.

### Claim 7 (depends on 1)

The display panel according to claim 1, wherein the array substrate further comprises a third connection pad, and the display panel further comprises:
a third sub-pixel, comprising a third driving unit electrically connected to the third connection pad, wherein the first light-emitting diode completely non-overlaps and is physically isolated from the third connection pad; and
a third light-emitting diode completely non-overlapping and physically isolated from the first connection pad, and not completely overlapping and electrically connected to the third connection pad.

### Claim 8 (depends on 1)

The display panel according to claim 1, wherein:
the array substrate further comprises a common connection pad;
the first light-emitting diode comprising a vertical type light-emitting diode; and
the vertical type light-emitting diode overlapping and electrically connected to the common connection pad.

### Claim 9 (depends on 1)

The display panel according to claim 1, wherein the array substrate further comprises a fourth connection pad and a fifth connection pad, and the display panel further comprises:
a fourth sub-pixel comprising a fourth driving unit electrically connected to the fourth connection pad;
a fifth sub-pixel comprising a fifth driving unit electrically connected to the fifth connection pad; and
a second light-emitting diode, completely overlapping and physically isolated from the fifth connection pad, and not completely overlapping and electrically connected to the fourth connection pad, wherein a luminous color of the first light-emitting diode is different from a luminous color of the second light-emitting diode.

### Claim 10

A manufacturing method for a display panel, comprising:
providing an array substrate comprising a first connection pad and a second connection pad;
disposing a first light-emitting diode on the array substrate, and making the first light-emitting diode completely overlap the first connection pad and not completely overlap the second connection pad; and
making the first light-emitting diode to be electrically connected to the second connection pad.

### Claim 11 (depends on 10)

The manufacturing method for the display panel according to claim 10, further comprising:
before configuring the first light-emitting diode on the array substrate, performing a test step or an inspection step to the array substrate.

### Claim 12 (depends on 10)

The manufacturing method for the display panel according to claim 10, wherein the array substrate further comprises a third connection pad, and the first light-emitting diode completely non-overlaps the third connection pad in the step of disposing the first light-emitting diode on the array substrate, the manufacturing method further comprises:
arranging a second light-emitting diode on the array substrate and making the second light-emitting diode not completely overlap the third connection pad; and
making the second light-emitting diode to be electrically connected to the third connection pad.

### Claim 13 (depends on 12)

The manufacturing method for the display panel according to claim 12, wherein the step of making the first light-emitting diode to be electrically connected to the second connection pad and the step of making the second light-emitting diode to be electrically connected to the third connection pad comprise:
forming a conductive layer electrically connected to the second light-emitting diode, the second connection pad, the third light-emitting diode and the third connection pad; and
separating the conductive layer to form a first connection line and a second connection line that are physically separated from or electrically isolated from each other, wherein the first light-emitting diode is electrically connected to the second connection pad through the first connection line, and the second light-emitting diode is electrically connected to the third connection pad through the second connection line.

### Claim 14 (depends on 13)

The manufacturing method for the display panel according to claim 13, wherein the method of separating the conductive layer comprises laser cutting.
