# US 11,307,445 B2 · Display device and manufacturing method thereof

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- Number: US 11,307,445 B2
- Document ID: US11307445B2
- Status: Granted
- Kind: B2
- Application number: 17/121,407
- Filed: 2020-12-14
- Published: 2022-03-24
- Granted: 2022-04-19
- Earliest claimed: 2020-09-18
- Assignees: Anhui Hongcheng Opto-Electronics Co., Ltd.
- Applicants: Anhui Hongcheng Opto-Electronics Co., Ltd.
- Inventors: Xukai Wang; Donggui Li; Tingfeng Chen
- Web page: https://patentgrep.com/patent/US11307445B2

## CPC

- G02F 1/133325: {Assembling processes}
- G02F 1/133311: {Environmental protection, e.g. against dust or humidity}
- G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame}
- G02F 1/133322: {Mechanical guidance or alignment of LCD panel support components}
- G02F 1/133331: {Cover glasses}
- G02F 1/133608: {including particular frames or supporting means}
- G02F 2201/46: Fixing elements
- G02F 2202/28: Adhesive materials or arrangements
- 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

## Abstract

The present disclosure relates to a display device and manufacturing method thereof. The display device includes a display area and a non-display area located on a periphery of the display area. The display device includes a cover, a display panel and a middle frame assembly. The cover comprises a cover plate and adapters. The adapters are disposed on a side surface of the cover plate corresponding to the non-display area. More than two adapters are disposed at intervals along the periphery of the display area. The display panel is disposed on the cover plate to correspond to the display area, and the display panel and the adapters are located on the same side. The middle frame assembly is connected to the cover via the adapters. The middle frame assembly and the cover together form an accommodation space to accommodate the display panel.

## Claims

### Claim 1

A display device comprising a display area and a non-display area located on a periphery of the display area, the display device comprising:
a cover comprising a cover plate and adapters, wherein the adapters are disposed on a side surface of the cover plate corresponding to the non-display area, and more than two adapters are disposed at intervals along the periphery of the display area;
a display panel disposed on the cover plate to correspond to the display area, wherein the display panel and the adapters are located on the same side;
a middle frame assembly connected to the cover via the adapters, wherein the middle frame assembly and the cover together form an accommodation space to accommodate the display panel,
wherein the side surface of the cover plate corresponds to the non-display area along a thickness direction of the display device, and the adapters are located between the cover plate and the middle frame assembly along the thickness direction.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the display device further comprises a fastener, each of the adapters comprises a connecting portion and a cantilever portion, the connecting portion is connected to the side surface, and the fastener locks the cantilever portion and the middle frame assembly.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the cantilever portion extends toward the display panel, and an accommodation gap is formed between the cantilever portion and the cover plate.

### Claim 4 (depends on 3)

The display device of claim 3, wherein one of each of the adapters and the middle frame assembly comprises a limiting groove extending along a thickness direction of the cover plate, the other comprises a limiting protrusion extending along the thickness direction of the cover plate, and the limiting protrusion is inserted and fitted into the limiting groove.

### Claim 5 (depends on 3)

The display device of claim 3, wherein the display device further comprises a flexible sealing pad disposed between the middle frame assembly and a portion of the cover plate corresponding to the non-display area; or, the display device further includes an outer frame assembly, the adapters are located inside the outer frame assembly, and the flexible sealing pad is disposed between the outer frame assembly and a portion of the cover plate corresponding to the non-display area.

### Claim 6 (depends on 3)

The display device of claim 3, wherein the cover plate comprises four frames, two frames opposed to each other form a group of frames, and at least one group of frames is provided with the adapters.

### Claim 7 (depends on 2)

The display device of claim 2, wherein the cantilever portion is disposed on an edge of the connecting portion away from the display panel, and the cantilever portion is folded toward the middle frame assembly relative to the connecting portion and is located on an outside of the middle frame assembly.

### Claim 8 (depends on 7)

The display device of claim 7, wherein the display device further comprises a backlight assembly connected to the middle frame assembly, the middle frame assembly comprises a first extension portion located inside the cantilever portion, the backlight assembly comprises a second extension portion located inside the first extension portion, and the fastener locks the cantilever portion, the first extension portion and the second extension portion.

### Claim 9 (depends on 8)

The display device of claim 8, wherein one of each of the adapters and the middle frame assembly comprises a limiting groove extending along a thickness direction of the cover plate, the other comprises a limiting protrusion extending along the thickness direction of the cover plate, and the limiting protrusion is inserted and fitted into the limiting groove.

### Claim 10 (depends on 8)

The display device of claim 8, wherein the display device further comprises a flexible sealing pad disposed between the middle frame assembly and a portion of the cover plate corresponding to the non-display area; or, the display device further includes an outer frame assembly, the adapters are located inside the outer frame assembly, and the flexible sealing pad is disposed between the outer frame assembly and a portion of the cover plate corresponding to the non-display area.

### Claim 11 (depends on 7)

The display device of claim 7, wherein one of each of the adapters and the middle frame assembly comprises a limiting groove extending along a thickness direction of the cover plate, the other comprises a limiting protrusion extending along the thickness direction of the cover plate, and the limiting protrusion is inserted and fitted into the limiting groove.

### Claim 12 (depends on 7)

The display device of claim 7, wherein the display device further comprises a flexible sealing pad disposed between the middle frame assembly and a portion of the cover plate corresponding to the non-display area; or, the display device further includes an outer frame assembly, the adapters are located inside the outer frame assembly, and the flexible sealing pad is disposed between the outer frame assembly and a portion of the cover plate corresponding to the non-display area.

### Claim 13 (depends on 2)

The display device of claim 2, wherein one of each of the adapters and the middle frame assembly comprises a limiting groove extending along a thickness direction of the cover plate, the other comprises a limiting protrusion extending along the thickness direction of the cover plate, and the limiting protrusion is inserted and fitted into the limiting groove.

### Claim 14 (depends on 2)

The display device of claim 2, wherein the display device further comprises a flexible sealing pad disposed between the middle frame assembly and a portion of the cover plate corresponding to the non-display area; or, the display device further includes an outer frame assembly, the adapters are located inside the outer frame assembly, and the flexible sealing pad is disposed between the outer frame assembly and a portion of the cover plate corresponding to the non-display area.

### Claim 15 (depends on 2)

The display device of claim 2, wherein the cover plate comprises four frames, two frames opposed to each other form a group of frames, and at least one group of frames is provided with the adapters.

### Claim 16 (depends on 1)

The display device of claim 1, wherein one of each of the adapters and the middle frame assembly comprises a limiting groove extending along a thickness direction of the cover plate, the other comprises a limiting protrusion extending along the thickness direction of the cover plate, and the limiting protrusion is inserted and fitted into the limiting groove.

### Claim 17 (depends on 1)

The display device of claim 1, wherein the display device further comprises a flexible sealing pad disposed between the middle frame assembly and a portion of the cover plate corresponding to the non-display area; or, the display device further includes an outer frame assembly, the adapters are located inside the outer frame assembly, and the flexible sealing pad is disposed between the outer frame assembly and a portion of the cover plate corresponding to the non-display area.

### Claim 18 (depends on 1)

The display device of claim 1, wherein the cover plate comprises four frames, two frames opposed to each other form a group of frames, and at least one group of frames is provided with the adapters.

### Claim 19

A method for manufacturing a display device comprising:
connecting closely a display panel and a cover plate;
along a peripheral direction of the display panel, more than two adapters are disposed at intervals on an edge area of the cover plate beyond the display panel, and the adapters and the display panel are located on the same side of the cover plate;
connecting a middle frame assembly and the adapters,
wherein the adapters are disposed on a side surface of the cover plate corresponding to a non-display area of the display device, the non-display area is located on a periphery of a display area of the display device, the side surface of the cover plate corresponds to the non-display area along a thickness direction of the display device, and the adapters are located between the cover plate and the middle frame assembly along the thickness direction.

### Claim 20 (depends on 19)

The method for manufacturing a display device of claim 19, wherein in the following step that along the peripheral direction of the display panel more than two adapters are disposed at intervals on the edge area of the cover plate beyond the display panel and the adapters and the display panel are located on the same side of the cover plate, the adapters are adhered to the edge area.