# US 2015/0177451 A1 · Display device

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- Number: US 2015/0177451 A1
- Document ID: US20150177451A1
- Status: Published application
- Kind: A1
- Application number: 14/581,395
- Filed: 2014-12-23
- Published: 2015-06-25
- Earliest claimed: 2013-12-23
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Choun Sung KANG; Yong Ik HWANG
- Web page: https://patentgrep.com/patent/US20150177451A1

## CPC

- G02B 6/0088: {of the light guide or other optical sheets in the package}
- G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels}
- G02F 1/133317: {Intermediate frames, e.g. between backlight housing and front frame}
- G02F 2201/503: Arrangements improving the resistance to shock
- G02F 2202/28: Adhesive materials or arrangements
- 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

## Abstract

A display device is discussed, which can include a display panel; a backlight unit providing light to the display panel; an optical member coupled to at least one of an upper surface and a lower surface of the display panel and extended to an outer direction of the display panel to surround an outside of the backlight unit or the display panel; and an elastic adhesive portion coupling the backlight unit with the optical member.

## Claims

### Claim 1

A display device comprising:
a display panel;
a backlight unit providing light to the display panel;
an optical member coupled to at least one of an upper surface and a lower surface of the display panel and extended to an outer direction of the display panel to surround an outside of the backlight unit or the display panel; and
an elastic adhesive portion coupling the backlight unit with the optical member.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the backlight unit includes:
a backlight providing light to the display panel; and
a receiving unit receiving the backlight.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the receiving unit includes:
a lower case in which the backlight is received; and
a cabinet including a sidewall coupled to an upper portion of the lower case and originated towards the display panel to surround an anti-light-entrance portion of the backlight, and
the cabinet includes a coupling groove to which the elastic adhesive portion is coupled.

### Claim 4 (depends on 3)

The display device of claim 3, wherein the elastic adhesive portion includes:
a first elastic adhesive member coupled to one end of the cabinet facing the optical member; and
a second elastic adhesive member coupled to the coupling groove, and
the first and second elastic adhesive members are coupled with the optical member.

### Claim 5 (depends on 3)

The display device of claim 3, wherein the coupling groove is formed on an outer circumference of the cabinet disposed in an anti-light-entrance direction.

### Claim 6 (depends on 3)

The display device of claim 3, wherein the coupling groove is formed on a rear surface of the cabinet facing the optical member.

### Claim 7 (depends on 1)

The display device of claim 1, wherein the optical member is coupled to the lower surface of the display panel and extended to the outer direction of the display panel to surround the outer side of the backlight unit.

### Claim 8 (depends on 7)

The display device of claim 7, wherein the optical member is provided with a hollow hole at the center, and is coupled to a lower edge of the display panel to surround the outside of the backlight unit.

### Claim 9 (depends on 1)

The display device of claim 1, wherein the optical member is coupled to the upper surface of the display panel and extended to the outer direction of the display panel to surround the outer side of the backlight unit and the display panel.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the optical member includes a bending portion guiding a bending to surround the outer side of the backlight unit.

### Claim 11 (depends on 2)

The display device of claim 2, wherein the backlight includes:
a light source unit;
a housing coupled to a rear direction of the cabinet, into which the light source unit is coupled;
a light guide plate arranged in the receiving unit, including a light-entrance portion facing the light source unit;
at least one optical sheet arranged on a light-emitting surface of the light guide plate; and
a reflection sheet arranged in a rear direction of the light guide plate.

### Claim 12 (depends on 11)

The display device of claim 11, wherein the housing includes:
a horizontal portion supporting a lower portion of the cabinet; and
a side portion extended from the horizontal portion towards the display panel, and
the light source unit is coupled to an inner direction of the side portion.

### Claim 13 (depends on 12)

The display device of claim 12, wherein the housing includes a protrusion formed in an outer direction of the side portion.

### Claim 14 (depends on 13)

The display device of claim 13, wherein the backlight further includes a cover member covering an upper portion of the light source unit and an upper portion of the light-entrance portion of the light guide plate.

### Claim 15 (depends on 14)

The display device of claim 14, wherein the cover member includes:
an upper cover covering the upper portion of the light source unit and the upper portion of the light-entrance portion; and
a side cover extended from the upper cover, having a hollow hole coupled with the protrusion of the housing.