# US 9,753,215 B2 · Backlight, liquid crystal module and display device

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- Number: US 9,753,215 B2
- Document ID: US9753215B2
- Status: Granted
- Kind: B2
- Application number: 14/803,553
- Filed: 2015-07-20
- Published: 2016-03-31
- Granted: 2017-09-05
- Earliest claimed: 2014-09-29
- Assignees: Boe Technology Group Co., Ltd.; Xiamen BOE Electronics Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Xiamen Boe Electronics Co., Ltd.
- Inventors: Changxin Nian
- Web page: https://patentgrep.com/patent/US9753215B2

## CPC

- G02B 6/0088: {of the light guide or other optical sheets in the package}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

This disclosure provides a backlight comprising an optical component and a frame that comprises a receiving part, said optical component being disposed in said receiving part, said optical component comprising a reflective sheet for reflecting light towards a light exit of the backlight, said reflective sheet comprising a reflective sheet body and a lug arranged on at least one side of the reflective sheet body, said lug protruding outwardly of the reflective sheet body along a length or a width direction of the reflective sheet body, a clamp slot corresponding to the lug being arranged on a side wall of said receiving part, said lug being arranged within the clamp slot. Correspondingly, this disclosure provides also a liquid crystal module and a display device. Compared with the prior art, during repair and maintenance, the backlight of this disclosure avoids the damage to the reflective sheet caused by tearing double-sided adhesive and avoids waste of the double-sided adhesive, thereby reducing the manufacturing cost.

## Claims

### Claim 1

A backlight comprising:
a light exit;
a frame comprising:
a receiving part; and
a clamp slot arranged in a side wall of the receiving part; and
an optical component disposed within the receiving part comprising a reflective sheet for reflecting light toward the light exit, the reflective sheet comprising:
a reflective sheet body; and
a lug arranged on at least one side of the reflective sheet body;
wherein the lug protrudes outwardly of the reflective sheet body at least one of a length direction and a width direction of the reflective sheet body; and
wherein the lug is arranged within the clamp slot;
wherein:
the frame comprises:
a sealant frame; and
a back plate;
the optical component is fixedly attached to the sealant frame;
the sealant frame is fixedly attached to the back plate; and
the clamp slot is arranged on a side wall of the sealant frame.

### Claim 2 (depends on 1)

The backlight according to claim 1, wherein said lug is formed integrally with the reflective sheet body.

### Claim 3 (depends on 1)

The backlight according to claim 1, wherein the reflective sheet comprises a lug arranged on at least two sides of the reflective sheet body.

### Claim 4 (depends on 1)

The backlight according to claim 1, wherein:
said sealant frame is provided with a protrusion on a surface thereof facing the back plate;
said back plate is arranged with a groove corresponding to said protrusion; and
said protrusion is arranged within said groove.

### Claim 5 (depends on 1)

The backlight according to claim 1, wherein
the back plate comprises:
a bottom plate; and
a first side plate, a second side plate, a third side plate, and a fourth side plate that are connected in sequence;
wherein the reflective sheet of the optical component is arranged on the bottom plate;
wherein the first side plate comprises a vertical portion and a bent portion that is bent toward the optical component;
a light bar arranged between said optical component and said vertical portion of the first side plate;
wherein the sealant frame comprises:
a first side wall arranged on the bent portion of the first side plate;
a second side wall arranged inward of the second side plate;
a third side wall arranged inward of the third side plate; and
a fourth side wall arranged inward of the fourth side plate;
wherein the clamp slot is arranged on each of the second side wall, the third side wall, and the fourth side wall of the sealant frame.

### Claim 6 (depends on 5)

The backlight according to claim 5, wherein:
said light bar comprises a circuit board and a light emitting means arranged on the circuit board; and
said circuit board is arranged on said bottom plate.

### Claim 7

A liquid crystal module comprising:
a liquid crystal panel; and
a backlight comprising:
a light exit;
a frame comprising:
a receiving part; and
a clamp slot arranged in a side wall of the receiving part; and
an optical component disposed within the receiving part comprising a reflective sheet for reflecting light toward the light exit, the reflective sheet comprising:
a reflective sheet body; and
a lug arranged on at least one side of the reflective sheet body;
wherein the lug protrudes outwardly of the reflective sheet body at least one of a length direction and a width direction of the reflective sheet body; and
wherein the lug is arranged within the clamp slot;
wherein the frame comprises a sealant frame for fixing the optical component;
the sealant frame comprising a carrying part arranged on a side wall of said sealant frame; and
the liquid crystal panel is arranged on the carrying part.

### Claim 8

A display device comprising at least one of:
a backlight comprising:
a light exit;
a frame comprising:
a receiving part; and
a clamp slot arranged in a side wall of the receiving part; and
an optical component disposed within the receiving part comprising a reflective sheet for reflecting light toward the light exit, the reflective sheet comprising:
a reflective sheet body; and
a lug arranged on at least one side of the reflective sheet body;
wherein the lug protrudes outwardly of the reflective sheet body at least one of a length direction and a width direction of the reflective sheet body; and
wherein the lug is arranged within the clamp slot; and
a liquid crystal module;
wherein:
the frame comprises:
a sealant frame; and
a back plate;
the optical component is fixedly attached to the sealant frame;
the sealant frame is fixedly attached to the back plate; and
the clamp slot is arranged on a side wall of the sealant frame.
