Display device

• US 9,606,286 B2
• Filed: 12/23/2014
• Issued: 03/28/2017
• Est. Priority Date: 12/23/2013
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kang, Choun Sung, Hwang, Yong Ik
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US14/581,395
• Publication Number:
  US 20150177451A1
• Time in Patent Office: 826 Days
• Field of Search: 362/606
• US Class Current: 1/1
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 2201/503 Arrangements improving the resistance to shock
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements

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

1. A display device comprising:

a display panel;

a backlight unit providing light to the display panel, the backlight unit including a cabinet having a sidewall and a support surface supporting a light guide plate;

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, wherein the elastic adhesive portion includes;

a first elastic adhesive member directly in contact with a portion of the sidewall facing the display panel and the optical member; and

a second elastic adhesive member directly in contact with a coupling groove of the sidewall not facing the display panel and the optical member.

2. 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.

3. The display device of claim 2, wherein the receiving unit includes:

a lower case in which the backlight is received; and

the cabinet including the coupling groove to which the second elastic adhesive member of the elastic adhesive portion is coupled.

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

5. The display device of claim 3, wherein the coupling groove is formed on an outer circumference of the cabinet.

6. The display device of claim 2, wherein the backlight further includes:

a light source unit;

a housing coupled to a rear direction of the cabinet, into which the light source unit is coupled;

the light guide plate arranged in the receiving unit, and 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.

7. The display device of claim 6, 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.

8. The display device of claim 7, wherein the housing includes a protrusion formed in an outer direction of the side portion.

9. The display device of claim 8, 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.

10. The display device of claim 9, 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 of the light guide plate; and

a side cover coupled to a side portion of the housing.

11. 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.

12. The display device of claim 11, 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.

13. 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.

14. 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.

15. A display device comprising:

a display panel;

a backlight unit providing light to the display panel, wherein the backlight unit includes;

a light source unit,

a light guide plate arranged in a receiving unit and including a light-entrance portion facing the light source unit, the receiving unit receiving a backlight and including a cabinet having a sidewall and a support surface supporting the light guide plate,

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;

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, wherein the elastic adhesive portion includes;

a first elastic adhesive member directly in contact with a front surface of the sidewall facing the display panel and the optical member; and

a second elastic adhesive member directly in contact with a rear surface of the sidewall facing opposite to the display panel and the optical member.

16. The display device of claim 15, wherein the receiving unit includes a lower case in which the backlight is received, and

wherein the cabinet includes a coupling groove to which the elastic adhesive portion is coupled.