# US 11,908,881 B2 · LED display apparatus having micro LED module

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- Number: US 11,908,881 B2
- Document ID: US11908881B2
- Status: Granted
- Kind: B2
- Application number: 17/152,303
- Filed: 2021-01-19
- Published: 2021-07-22
- Granted: 2024-02-20
- Earliest claimed: 2020-01-21
- Assignees: Seoul Viosys Co., Ltd.
- Applicants: Seoul Viosys Co., Ltd.
- Inventors: Dae Sung Cho; So Ra Lee
- Web page: https://patentgrep.com/patent/US11908881B2

## CPC

- H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout}
- H10H 20/813: having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10W 90/00: Package configurations
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A display apparatus is provided. The display apparatus includes a display substrate, a first micro LED module disposed on the display substrate, and a second micro LED module disposed on the display substrate and adjacent to the first micro LED module. The first micro LED module and the second micro LED module have side surfaces facing each other. The side surfaces facing each other of the first micro LED module and the second micro LED module are inclined in an identical direction with respect to an upper surface of the display substrate.

## Claims

### Claim 1

A display apparatus, comprising:
a display substrate;
a first micro LED module disposed on the display substrate; and
a second micro LED module disposed on the display substrate and adjacent to the first micro LED module, wherein:
the first micro LED module and the second micro LED module have side surfaces facing each other, and
the side surfaces of the first micro LED module, the second micro LED module, or both are inclined in an identical direction with respect to an upper surface of the display substrate,
wherein the first micro LED module further includes a first connector for connecting an upper surface of the first micro LED module and a lower surface of the first micro LED module, the lower surface of the first micro LED module connected to the upper surface of the display substrate,
wherein the first connector is formed on one of the side surfaces of the first LED module to connect the upper surface of the display substrate and the upper surface of the first LED module,
wherein the first connector partially overlaps a portion of the upper surface and a portion of the lower surface of the first LED module, and
wherein the first connector partially overlaps a portion of an upper surface and a portion of a lower surface of the second LED module, to form a substantially “H” shape in cross section.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the side surfaces facing each other are parallel to each other.

### Claim 3 (depends on 1)

The display apparatus of claim 1, wherein the side surfaces facing each other are at least partially overlapped in the vertical direction.

### Claim 4 (depends on 1)

The display apparatus of claim 1, wherein the first micro LED module and the second micro LED module have different sizes or different shapes from each other.

### Claim 5 (depends on 1)

The display apparatus of claim 1, further comprising:
a third micro LED module disposed on the display substrate and adjacent to the first micro LED module, wherein:
the first micro LED module and the third micro LED module have side surfaces facing each other,
the side surfaces facing each other of the first micro LED module and the third micro LED module are inclined in an identical direction with respect to the upper surface of the display substrate, and
the side surface of the first micro LED facing the side surface of the third micro LED module is adjacent to the side surface of the first micro LED module facing the side surface of the second micro LED module.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the third micro LED module is disposed between two first micro LED modules.

### Claim 7 (depends on 5)

The display apparatus of claim 5, wherein the side surface of the third micro LED module facing the side surface of the first micro LED module extends to face the side surface of the second micro LED module.

### Claim 8 (depends on 7)

The display apparatus of claim 7, wherein the third micro LED module is disposed between two second micro LED modules.

### Claim 9 (depends on 1)

The display apparatus of claim 1, wherein:
the first micro LED module includes a first substrate and micro LEDs arranged on the first substrate,
the second micro LED module includes a second substrate and micro LEDs arranged on the second substrate, and
side surfaces of the first substrate and the second substrate face each other.

### Claim 10 (depends on 1)

The display apparatus of claim 1, wherein:
the first micro LED module includes a plurality of first pixel regions, and
the second micro LED module includes a plurality of second pixel regions.

### Claim 11 (depends on 10)

The display apparatus of claim 10, wherein each of the first pixel regions and the second pixel regions is configured to emit red light, green light, and blue light.

### Claim 12 (depends on 1)

The display apparatus of claim 1, further comprising: a molding member covering the first and second micro LED modules.

### Claim 13 (depends on 12)

The display apparatus of claim 12, wherein the molding member fills a region between the first micro LED module and the second micro LED module.

### Claim 14 (depends on 1)

The display apparatus of claim 1, wherein the side surfaces of the first micro LED module include:
first and second side surfaces that are positioned opposite each other on the first LED module and that are inclined in an identical direction with respect to the upper surface of the display substrate; and
third and fourth side surfaces that are positioned opposite each other on the first LED module orthogonally with respect to the first and second side surfaces of the first LED module, and that are inclined in the identical direction with respect to the upper surface of the display substrate.

### Claim 15 (depends on 14)

The display apparatus of claim 14, wherein the side surfaces of the second micro LED module include:
first and second side surfaces that are positioned opposite each other on the second LED module and that are inclined in a different direction with respect to the upper surface of the display substrate; and
third and fourth side surfaces that are positioned opposite each other on the second LED module orthogonally with respect to the first and second side surfaces of the second LED module, and that are inclined in the different direction with respect to the upper surface of the display substrate.

### Claim 16 (depends on 15)

The display apparatus of claim 15, wherein the upper surface of the first LED module is larger in area than the lower surface of the first LED module, and
wherein the upper surface of the second LED module is larger in area than the lower surface of the second LED module.

### Claim 17

A display apparatus comprising a micro LED module,
the micro LED module comprising:
a substrate having a lower surface, an upper surface, and side surfaces; and
micro LEDs arranged on the upper surface of the substrate,
wherein at least one side surface of the substrate is inclined to have an acute angle or an obtuse angle with respect to the upper surface of the substrate,
wherein the micro LED module includes a first connector for connecting an upper surface of one of the micro LEDs and a lower surface of the one of the micro LEDs, the lower surface of the one of the micro LEDs connected to the upper surface of the substrate,
wherein the first connector is formed on a side surface of the one of the micro LEDs to connect the upper surface of the substrate and the upper surface of the one of the micro LEDs, and
wherein the first connector partially overlaps a portion of the upper surface and a portion of the lower surface of the one of the micro LEDs, and
wherein the first connector partially overlaps a portion of an upper surface and a portion of a lower surface of another of the micro LEDs that is positioned adjacent to the one of the micro LEDs on the substrate, wherein the first connector forms a substantially “H” shape in cross section.

### Claim 18 (depends on 17)

The display apparatus of claim 17, wherein:
the substrate has two pairs of opposite side surfaces, and
at least one pair of opposite side surfaces are inclined in an identical direction.

### Claim 19 (depends on 17)

The display apparatus of claim 17, wherein:
the substrate has two pairs of opposite side surfaces, and
at least one pair of opposite side surfaces are inclined in opposite directions.

### Claim 20 (depends on 17)

The display apparatus of claim 17, wherein:
the micro LED module has a plurality of pixel regions on the upper surface of the substrate, and
each of the pixel regions is configured to emit red light, green light, and blue light.