# US 9,436,028 B2 · Liquid crystal display device

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- Number: US 9,436,028 B2
- Document ID: US9436028B2
- Status: Granted
- Kind: B2
- Application number: 14/428,529
- Filed: 2013-04-28
- Published: 2015-09-03
- Granted: 2016-09-06
- Earliest claimed: 2013-03-27
- Assignees: Boe Technology Group Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd.
- Inventors: Zhanchang Bu
- Web page: https://patentgrep.com/patent/US9436028B2

## CPC

- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02F 1/13332: {Front frames}
- G02F 2201/503: Arrangements improving the resistance to shock
- G02F 2201/54: Arrangements for reducing warping-twist
- 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

A liquid crystal display, comprising a back light module, a metal side frame, and a liquid crystal display panel disposed between the back light module and the metal side frame, wherein the metal side frame comprises a first magnet, the back light module comprises a second magnet, at least a portion of the first magnet and the second magnet are oppositely disposed, and each magnet is provided with an identical kind of magnetic pole on the side facing to the liquid crystal display panel. The liquid crystal display retains the gap between the liquid crystal display panel and the metal side frame, thereby preventing the problem of light leakage in a 0 grayscale image.

## Claims

### Claim 1

A liquid crystal display device, comprising a backlight module, a metal side frame, and a liquid crystal display panel disposed between the backlight module and the metal side frame;
wherein the metal side frame comprises a first magnet, the backlight module comprises a second magnet, at least a portion of the first magnet and the second magnet are oppositely disposed, and the first magnet and the second magnet are provided with an identical kind of magnetic pole on a side facing to the liquid crystal display panel, and a repulsive force is formed between the first magnet and the second magnet.

### Claim 2 (depends on 1)

The liquid crystal display device according to claim 1, wherein the first magnet is disposed on the metal side frame.

### Claim 3 (depends on 2)

The liquid crystal display device according to claim 2, wherein the first magnet comprises a ductile material.

### Claim 4 (depends on 2)

The liquid crystal display device according to claim 2, wherein the first magnet comprises a rubber magnet.

### Claim 5 (depends on 2)

The liquid crystal display device according to claim 2, wherein the backlight module comprises a rubber frame, a light guide plate and a rear panel.

### Claim 6 (depends on 5)

The liquid crystal display device according to claim 5, wherein the second magnet that is magnetic is disposed on any one of the rubber frame, the light guide plate and the rear panel.

### Claim 7 (depends on 6)

The liquid crystal display device according to claim 6, wherein the second magnet comprises a ductile material.

### Claim 8 (depends on 6)

The liquid crystal display device according to claim 6, wherein the second magnet comprises a rubber magnet.

### Claim 9 (depends on 1)

The liquid crystal display device according to claim 1, wherein the first magnet comprises a ductile material.

### Claim 10 (depends on 9)

The liquid crystal display device according to claim 9, wherein the backlight module comprises a rubber frame, a light guide plate and a rear panel.

### Claim 11 (depends on 10)

The liquid crystal display device according to claim 10, wherein the second magnet that is magnetic is disposed on any one of the rubber frame, the light guide plate and the rear panel.

### Claim 12 (depends on 11)

The liquid crystal display device according to claim 11, wherein the second magnet comprises a ductile material.

### Claim 13 (depends on 11)

The liquid crystal display device according to claim 11, wherein the second magnet comprises a rubber magnet.

### Claim 14 (depends on 1)

The liquid crystal display device according to claim 1, wherein the first magnet comprises a rubber magnet.

### Claim 15 (depends on 1)

The liquid crystal display device according to claim 1, wherein the metal side frame is converted to the first magnet that is magnetic via a magnetization process.

### Claim 16 (depends on 1)

The liquid crystal display device according to claim 1, wherein the backlight module comprises a rubber frame, a light guide plate and a rear panel.

### Claim 17 (depends on 16)

The liquid crystal display device according to claim 16, wherein the second magnet that is magnetic is disposed on any one of the rubber frame, the light guide plate and the rear panel.

### Claim 18 (depends on 17)

The liquid crystal display device according to claim 17, wherein the second magnet comprises a ductile material.

### Claim 19 (depends on 17)

The liquid crystal display device according to claim 17, wherein the second magnet comprises a rubber magnet.

### Claim 20 (depends on 1)

The liquid crystal display device according to claim 1, wherein a gap is retained between the metal side frame and the liquid crystal display panel, and the gap is configured to let the metal side frame not touch a surface of the liquid crystal display panel.