# US 10,481,320 B2 · Clamping method and display device

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- Number: US 10,481,320 B2
- Document ID: US10481320B2
- Status: Granted
- Kind: B2
- Application number: 15/743,664
- Filed: 2017-12-20
- Published: 2019-04-18
- Granted: 2019-11-19
- Earliest claimed: 2017-10-13
- Assignees: Hkc Corporation Limited; Chongqing Hkc Optoelectronics Technology Co., Ltd.
- Applicants: HKC Corporation Limited; Chongqing HKC Optoelectronics Technology Co., Ltd.
- Inventors: Jiahe Cheng
- Web page: https://patentgrep.com/patent/US10481320B2

## CPC

- G02B 6/0088: {of the light guide or other optical sheets in the package}
- G02F 1/13: based on liquid crystals, e.g. single liquid crystal display cells
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- 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
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

Disclosed are a clamping method and a display device. The method includes providing a plastic frame, a backplate, an optical film and a light guide plate, and the plastic frame including a first clamping portion having a fixed column, and the backplate including a second clamping portion; forming a through hole at a position corresponding to the second clamping portion and the fixed column, and the through hole having a size bigger than the fixed column; installing the optical film and the light guide plate between the first clamping portion and the second clamping portion, and passing the fixed column through the through hole; and hot melting the part of the fixed column extending out of the through hole to form a hot melt portion wrapped around the through hole, so that the first and second clamping portions clamp the optical film and the light guide plate securely.

## Claims

### Claim 1

A display device, comprising:
a display panel, and
a backlight module, comprising:
a plastic frame, comprising a first clamping portion, wherein the first clamping portion has a fixed column disposed thereon;
a backplate, comprising a second clamping portion, wherein the second clamping portion has a through hole formed at a position corresponding to the fixed column;
an optical film; and
a light guide plate, wherein the optical film and the light guide plate are installed between the first clamping portion and the second clamping portion;
wherein, the fixed column is passed through the through hole, and the part of the fixed column extending out from the through hole is hot melted to form a hot melt portion wrapped around the through hole, so that the first clamping portion and the second clamping portion clamp the optical film and the light guide plate securely.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the plastic frame comprises a first border portion formed at a certain angle with the first clamping portion, and the backplate comprises a second border portion formed at a certain angle with the second clamping portion, and the first border portion has a latch hole formed thereon, and the second border portion has a latch member disposed thereon and at a position corresponding to the latch hole, and the latch member is passed through the latch hole to define a latch connection.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the first clamping portion comprises a plurality of fixed columns disposed thereon, and the fixed columns are uniformly distributed around the first clamping portion.

### Claim 4 (depends on 1)

The display device of claim 1, wherein the first border portion comprises a plurality of latch holes formed thereon, and the latch holes are uniformly distributed around the first border portion.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the fixed column is made of a thermoplastic material.

### Claim 6 (depends on 2)

The display device of claim 2, wherein the first clamping portion is perpendicular to the first border portion.

### Claim 7 (depends on 2)

The display device of claim 2, wherein the second clamping portion is perpendicular to the second border portion.

### Claim 8 (depends on 1)

The display device of claim 1, wherein the plastic frame is a one-piece structure.

### Claim 9 (depends on 3)

The display device of claim 3, wherein a quantity of the plurality of fixed columns disposed on the first clamping portion is 2˜20.

### Claim 10 (depends on 4)

The display device of claim 4, wherein a quantity of the plurality of latch holes of the first border portion is 2˜20.

### Claim 11 (depends on 1)

The display device of claim 1, wherein the fixed column is a cylindrical structure, and the through hole is a circular structure.

### Claim 12

A display device, comprising:
a display panel, and
a backlight module, further comprising:
a plastic frame, being a one-piece structure, and comprising a first clamping portion and a first border portion, wherein the first clamping portion has a fixed column disposed thereon, and the first border portion and the first clamping portion are formed with a certain angle and the first border portion has a latch hole;
a backplate, comprising a second clamping portion and a second border portion, wherein the second clamping portion has a through hole formed thereon and disposed at a position corresponding to the fixed column, and the second border portion and the second clamping portion are formed with a certain angle, and the second border portion has a latch member disposed at a position corresponding to the latch hole;
an optical film and a light guide plate, both being installed between the first clamping portion and the second clamping portion;
wherein, the fixed column is passed through the through hole, and the part of the fixed column extending out from the through hole is hot melted to form a hot melt portion wrapped around the through hole, so that the first clamping portion and the second clamping portion clamp the optical film and the light guide plate securely, and the latch member is passed through the latch hole to define a latch connection.