# US 12,183,719 B2 · Display transferring structure and display device including the same

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- Number: US 12,183,719 B2
- Document ID: US12183719B2
- Status: Granted
- Kind: B2
- Application number: 17/483,103
- Filed: 2021-09-23
- Published: 2022-06-16
- Granted: 2024-12-31
- Earliest claimed: 2020-12-15
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Junsik Hwang; Seogwoo Hong; Kyungwook Hwang
- Web page: https://patentgrep.com/patent/US12183719B2

## CPC

- H10W 90/00: Package configurations
- H10H 20/01: Manufacture or treatment
- H10H 20/819: characterised by their shape, e.g. curved or truncated substrates
- H10H 20/851: Wavelength conversion means
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

A display transferring structure includes a transfer substrate including a plurality of recesses, each of the plurality of recesses including a first trap having a space in which a predetermined object can be moved and a second trap connected to the first trap and having a shape and size in which the object can be seated; and a micro-semiconductor chip positioned in the second trap. The micro-semiconductor chip may be self-aligned in a correct position by the display transferring structure.

## Claims

### Claim 1

A display transferring structure comprising:
a transfer substrate including a plurality of recesses, each of the plurality of recesses comprising a first trap having a space in which an object is movable and a second trap connected to the first trap and having a shape and size in which the object is seatable; and
a micro-semiconductor chip positioned in the second trap,
wherein each of the plurality of recesses further comprises a plurality of third traps connected to the first trap or the second trap.

### Claim 2 (depends on 1)

The display transferring structure of claim 1,
wherein a size of the first trap is such that two or more micro-semiconductor chips cannot fit into each of the plurality of recesses.

### Claim 3 (depends on 1)

The display transferring structure of claim 1,
wherein a width of the second trap is 105% or less of a width of the micro-semiconductor chip.

### Claim 4 (depends on 1)

The display transferring structure of claim 1,
wherein the second trap overlaps the first trap by a certain length.

### Claim 5 (depends on 4)

The display transferring structure of claim 4,
wherein the second trap is circular, and a certain length by which the second trap overlaps the first trap is greater than a radius of the second trap.

### Claim 6 (depends on 4)

The display transferring structure of claim 4,
wherein each of the third traps has a size smaller than the second trap.

### Claim 7 (depends on 6)

The display transferring structure of claim 6,
wherein the first trap, the second trap, and at least one of the third traps have a shape with symmetry, and the first trap, the second trap, and the at least one of third traps are arranged such that centers of the symmetry thereof lie on a straight line.

### Claim 8 (depends on 6)

The display transferring structure of claim 6,
wherein each of the plurality of third traps has a circular shape.

### Claim 9 (depends on 1)

The display transferring structure of claim 1,
wherein an outer surface of the transfer substrate and an inner surface of each of the plurality of recesses are surface-treated to have different properties.

### Claim 10 (depends on 1)

The display transferring structure of claim 1,
wherein a metal coating layer is formed on an outer surface of the transfer substrate.

### Claim 11 (depends on 1)

The display transferring structure of claim 1, further comprising a driving circuit configured to drive the micro-semiconductor chip.

### Claim 12 (depends on 11)

The display transferring structure of claim 11,
wherein the driving circuit is located in the transfer substrate.

### Claim 13 (depends on 11)

The display transferring structure of claim 11, further comprising a circuit board located under the transfer substrate and including the driving circuit.

### Claim 14

A display device comprising:
a transfer substrate including a plurality of recesses, each of the plurality of recesses comprising a first trap having a space in which an object is movable and a second trap connected to the first trap and having a shape and size in which the object is seatable;
a micro-semiconductor chip positioned in the second trap;
a driving circuit configured to drive the micro-semiconductor chip; and
a color conversion layer positioned on the transfer substrate,
wherein each of the plurality of recesses further comprises a plurality of third traps connected to the first trap or the second trap.

### Claim 15 (depends on 14)

The display device of claim 14,
wherein the driving circuit is located in the transfer substrate.

### Claim 16 (depends on 14)

The display device of claim 14, further comprising a circuit board located under the transfer substrate and including the driving circuit.

### Claim 17 (depends on 14)

The display device of claim 14,
wherein a size of the first trap is such that two or more micro-semiconductor chips cannot fit into each of the plurality of recesses.

### Claim 18 (depends on 14)

The display device of claim 14,
wherein a width of the second trap is 105% or less of a width of the micro-semiconductor chip.

### Claim 19 (depends on 14)

The display device of claim 14,
wherein the second trap overlaps the first trap by a certain length.

### Claim 20 (depends on 19)

The display device of claim 19,
wherein the first trap and the second trap are circular, and the certain length by which the second trap overlaps the first trap is greater than a radius of the second trap.

### Claim 21 (depends on 14)

The display device of claim 14,
wherein each of the third traps has a size smaller than the second trap.

### Claim 22 (depends on 21)

The display device of claim 21,
wherein the first trap, the second trap, and at least one of the third traps have a shape with symmetry, and the first trap, the second trap, and the at least one of third traps are arranged such that centers of the symmetry thereof lie on a straight line.

### Claim 23 (depends on 14)

An electronic device comprising the display device of claim 14.

### Claim 24 (depends on 1)

The display transferring structure of claim 1, wherein, in each of the plurality of recesses, one of the plurality of third traps is connected to the first trap.
