Liquid crystal display device

Patent metadata

Field	Value
Publication number	US-9632350-B2
Application number	US-201414461690-A
Country	US
Kind code	B2
Filing date	Aug 18, 2014
Priority date	Mar 31, 2014
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A liquid crystal display device includes a backlight assembly including a light source that generates a light and an optical sheet that transmits the light, and a display panel disposed on the backlight assembly. The optical sheet includes a light-transmitting portion and an extending portion that are formed as a unitary single unit, and further includes a side light-blocking portion that is combined with the extending portion. The light-transmitting portion extends in a first direction, and the extending portion extends continuously from an end of the light-transmitting portion in a second direction that is different from the first direction.

First claim

What is claimed is:

1. A liquid crystal display device comprising: a backlight assembly including a light source that generates a light and an optical sheet that transmits the light; and a display panel disposed on the backlight assembly, wherein the optical sheet includes a light-transmitting portion and an extending portion that are formed as a unitary single unit, and further includes a side light-blocking portion that is combined with and in contact with the extending portion, wherein the light-transmitting portion extends in a first direction and the extending portion extends continuously from an end of the light-transmitting portion in a second direction that is different from the first direction; and wherein the side light-blocking portion is spaced apart from and separated from the display panel, and the side light-blocking portion has a conformal shape along a surface of the extending portion.

2. The liquid crystal display device of claim 1 , wherein the second direction is perpendicular to the first direction.

3. The liquid crystal display device of claim 1 , wherein the side light-blocking portion includes a printed light-blocking layer that contains a black pigment and is printed on at least a surface of the extending portion.

4. The liquid crystal display device of claim 1 , further comprising a supporting member that supports the optical sheet, wherein the extending portion of the optical sheet covers at least a portion of a side surface of the supporting member.

5. The liquid crystal display device of claim 4 , further comprising an adhesive member that secures the extending portion with the side surface of the supporting member.

6. The liquid crystal display device of claim 4 , wherein the extending portion includes a combination hole, and the supporting member includes a protrusion that inserts into the combination hole.

7. The liquid crystal display device of claim 1 , wherein the optical sheet is a diffusion sheet, a prism sheet, a polarizing sheet or a protective sheet, and the liquid crystal display device further includes at least one additional optical sheet disposed under the optical sheet, and the extending portion of the optical sheet covers a side surface of the additional optical sheet.

Assignees

• Samsung Display Co Ltd

Inventors

• Nam Yun-Ha
• Kim Won-Ju

Classifications

• G02F2001/13332

  Physics · mapped topic

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G02F2201/50

  Protective arrangements · CPC title

• G02F2001/133322

  Physics · mapped topic

• G02B6/005

  provided by one optical element, or plurality thereof, placed on the light output side of the light guide · CPC title