# US 12,604,575 B2 · Display module with better structural yield

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- Number: US 12,604,575 B2
- Document ID: US12604575B2
- Status: Granted
- Kind: B2
- Application number: 18/183,967
- Filed: 2023-03-15
- Published: 2024-01-18
- Granted: 2026-04-14
- Earliest claimed: 2022-07-14
- Assignees: Qisda Corporation
- Applicants: Qisda Corporation
- Inventors: Po-Fu Wu
- Web page: https://patentgrep.com/patent/US12604575B2

## CPC

- H10H 20/853: characterised by their shape
- H10H 20/854: characterised by their material, e.g. epoxy or silicone resins
- H10H 20/855: Optical field-shaping means, e.g. lenses
- H10W 90/00: Package configurations
- H10H 20/0362: {of encapsulations}
- H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings
- 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 module includes a driving substrate, a plurality of light-emitting diode (LED) lamp boards, a transparent cover and a blocking structure. The LED lamp boards are separately disposed on the driving substrate separately. The transparent cover is disposed on the driving substrate and has a plurality of accommodating grooves. The LED lamp boards correspond to the accommodating grooves respectively and are disposed at intervals. The blocking structure is disposed on the transparent cover and located between the transparent cover and the driving substrate. The LED lamp boards and the blocking structure are disposed at intervals.

## Claims

### Claim 1

A display module, comprising:
a driving substrate;
a plurality of light-emitting diode lamp boards, separately disposed on the driving substrate;
a transparent cover, disposed on the driving substrate and having a plurality of accommodating grooves, the transparent cover comprising a plurality of first portions having a first thickness and a plurality of second portions corresponding to the plurality of accommodating grooves and having a second thickness, wherein the second thickness is less than the first thickness, and the light-emitting diode lamp boards respectively correspond to the accommodating grooves and are disposed at intervals; and
a blocking structure, disposed on the plurality of first portions of the transparent cover and located between the transparent cover and the driving substrate, wherein the light-emitting diode lamp boards and the blocking structure are disposed at intervals.

### Claim 2 (depends on 1)

The display module according to claim 1, wherein the blocking structure is further extended on inner walls of the accommodating grooves.

### Claim 3 (depends on 1)

The display module according to claim 1, further comprising:
an adhesive layer, disposed between the blocking structure and the driving substrate.

### Claim 4 (depends on 1)

The display module according to claim 1, wherein a cross-sectional shape of each of the accommodating grooves comprises a rectangle, a regular trapezoid, an inverted trapezoid, a triangle, a semicircle, or a semiellipse.

### Claim 5 (depends on 1)

The display module according to claim 1, wherein a thickness of each of the light-emitting diode lamp boards is H, and a thickness of the transparent cover is within a range of 0.1H to 10H.

### Claim 6 (depends on 1)

The display module according to claim 1, wherein a thickness of each of the light-emitting diode lamp boards is H, and a thickness of the blocking structure is within a range of 0.7H to 2H.

### Claim 7 (depends on 1)

The display module according to claim 1, wherein a length of each of the light-emitting diode lamp boards is W, and a gap between the blocking structure and a side of each of the light-emitting diode lamp boards is less than or equal to 0.3 W.

### Claim 8 (depends on 1)

The display module according to claim 1, wherein a material of the transparent cover comprises epoxy resin or silicone glue.

### Claim 9 (depends on 1)

The display module according to claim 1, wherein a material of the blocking structure comprises epoxy resin, silicon glue, or acrylic glue.

### Claim 10 (depends on 1)

The display module according to claim 1, wherein each of the light-emitting diode lamp boards comprises a micro light-emitting diode lamp board or a mini light-emitting diode lamp board.