Liquid crystal display with narrow bezel area

• US 9,784,999 B2
• Filed: 12/19/2013
• Issued: 10/10/2017
• Est. Priority Date: 03/20/2013
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Jun, Byeongdeog, Park, Jaewoo, Choi, Kou, Kim, Kyungmin
• Primary Examiner(s): GLICK, EDWARD J
• Assistant Examiner(s): Liu, Shan
• Application Number:
  US14/134,395
• Publication Number:
  US 20140285747A1
• Time in Patent Office: 1,391 Days
• 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

Abstract

A liquid crystal display with a narrow bezel area includes a liquid crystal display panel displaying an image, a light source unit supplying light to the liquid crystal display panel, a light guide plate converting light irradiated by the light source unit into planar light, a cover bottom which includes a bottom part and side walls extending from edges of the bottom part to an upper side and receives the light source unit and the light guide plate, and a supporting member which surrounds an external surface of the cover bottom, extends from an upper part of the light guide plate to the inside of the cover bottom, and supports the liquid crystal display panel.

Claims

1. A liquid crystal display comprising:

a liquid crystal display panel configured to display an image;

a light source unit configured to supply light to the liquid crystal display panel;

a light guide plate configured to convert light irradiated by the light source unit into planar light;

at least one optical sheet disposed between the liquid crystal display panel and the light guide plate;

a cover bottom including a bottom part and side walls extending from edges of the bottom part to an upper side, the cover bottom receiving the light source unit and the light guide plate; and

a supporting member configured to surround an external surface of the cover bottom, extend from an upper part of the light guide plate to an inside of the cover bottom, and support the liquid crystal display panel,

wherein the supporting member includes;

a base member having a first part directly attached to an external surface of the bottom part of the cover bottom, a second part extended from the first part and directly attached to an external surface of the side walls of the cover bottom, and a third part extended from the second part to an inside of the cover bottom to overlap one portion of the liquid crystal display panel and one portion of the at least one optical sheet;

a light-shielding pad disposed on the third part of the base member between the base member and a first polarizer,

wherein an end of the light-shielding pad extends to a location having a first horizontal distance measured from the second part of the base member that is equal to a second horizontal distance that an end of the third part of the base member extends from the second part of the base member to divide the liquid crystal display panel into a display area on which the image is displayed and a bezel area on which the image is not displayed; and

a hold pad disposed between the third part of the base member and the one portion of the at least one optical sheet to overlap the light-shielding pad and the one portion of the at least one optical sheet.

2. The liquid crystal display of claim 1, wherein the side walls of the cover bottom have a height capable of receiving the light source unit and the light guide plate.

3. The liquid crystal display of claim 2, wherein the side walls of the cover bottom include a first side wall to which the light source unit is attached, a second side wall positioned opposite the first side wall, a third side wall and a fourth side wall which connect the first side wall to the second side wall and are positioned opposite each other, and

wherein the supporting member includes a first supporting member, which extends from a top of the third side wall to an inside of the cover bottom, and a second supporting member which is positioned to be separated from the first supporting member and extends from a top of the fourth side wall to the inside of the cover bottom.

4. The liquid crystal display of claim 2, wherein the third part of the base member has a first horizontal portion extended from the second part and arranged in parallel with the first part, a vertical portion arranged and extended from the first horizontal portion in parallel with the second part, and a second horizontal portion extended from the vertical portion and arranged in parallel with the first part.

5. The liquid crystal display of claim 4, wherein the light-shielding pad is disposed between the second horizontal portion of the third part of the base member and the one portion of the liquid crystal display panel, and the hold pad is disposed between the second horizontal portion of the third part of the base member and the one portion of the at least one optical sheet.

6. The liquid crystal display of claim 5, wherein the vertical portion is attached to the side wall of the cover bottom by a double-sided tape.

7. The liquid crystal display of claim 1, wherein the side walls of the cover bottom each have a height capable of receiving the light source unit, the light guide plate, and the liquid crystal display panel.

8. The liquid crystal display of claim 7, wherein the side walls of the cover bottom include a first side wall to which the light source unit is attached, a second side wall positioned opposite the first side wall, a third side wall and a fourth side wall which connect the first side wall to the second side wall and are positioned opposite each other, and

wherein the supporting member includes a first supporting member, which bends from a top of the third side wall, extends to a predetermined position of the third side wall in a direction toward the bottom part of the cover bottom, and extends to the inside of the cover bottom at the predetermined position, and a second supporting member which bends from a top of the fourth side wall, extends to a predetermined position of the fourth side wall in a direction toward the bottom part of the cover bottom, and extends to the inside of the cover bottom at the predetermined position.

9. The liquid crystal display of claim 1, wherein the base member of the supporting member is formed of a thermoplastic material.