Liquid crystal display device

Patent metadata

Field	Value
Publication number	US-9715135-B2
Application number	US-201615189727-A
Country	US
Kind code	B2
Filing date	Jun 22, 2016
Priority date	Feb 27, 2014
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A liquid crystal display device includes a liquid crystal panel including first and second substrates and a liquid crystal layer between the first and second substrates; a backlight unit under the liquid crystal panel; a bottom frame including a horizontal surface and first, second, third, and fourth side surfaces, the first side surface corresponding to a first edge of the liquid crystal panel and being opposite to the second side surface, wherein the liquid crystal panel has a size larger than the bottom frame such that a side of the liquid crystal panel protrudes beyond the bottom frame; a main frame including a first guide portion corresponding to the first edge and a second guide portion corresponding a second edge of the liquid crystal panel opposite to the first edge; and an adhesive covering the side of the liquid crystal panel and an outer side of the third and fourth side surfaces.

First claim

What is claimed is:

1. A liquid crystal display device, comprising:
a backlight unit;
a liquid crystal panel including first and second substrates, a liquid crystal layer between the first and second substrates;
a first polarizing plate between the first substrate and the backlight unit;
a second polarizing plate on an outer side of the second substrate;
a bottom frame supporting the first polarizing plate; and
an adhesive securing a portion of the bottom frame to an edge of the first polarizing plate and to an edge of the first substrate,
wherein the adhesive has a first height from the portion of the bottom frame, and an upper surface of the second polarizing plate has a second height, which is greater than the first height, from the portion of the bottom frame.

2. The liquid crystal display device according to claim 1 , wherein the adhesive secures a lower surface and a side surface of the first polarizing plate to the portion of the bottom frame.

3. The liquid crystal display device according to claim 1 , wherein the adhesive secures a lower surface and a side surface of the first substrate to the portion of the bottom frame.

4. The liquid crystal display device according to claim 1 , wherein the adhesive further secures a side surface of the second substrate to the portion of the bottom frame.

5. The liquid crystal display device according to claim 1 , wherein the adhesive further secures an edge of the second polarizing plate to the portion of the bottom frame.

6. The liquid crystal display device according to claim 1 , wherein an end of the second polarizing plate protrudes from the liquid crystal panel, and the adhesive further secures a lower surface of the end of the second polarizing plate to the portion of the bottom frame.

7. A liquid crystal display device, comprising:
a backlight unit;
a liquid crystal panel including first and second substrates, a liquid crystal layer between the first and second substrates;
a first polarizing plate between the first substrate and the backlight unit
a second polarizing plate on an outer side of the second substrate;
a bottom frame supporting the first polarizing plate; and
an adhesive securing a portion of the bottom frame to an edge of the first polarizing plate and to an edge of the first substrate,
wherein a first pair of opposite edges of the second polarizing plate protrude from the liquid crystal panel, and a second pair of opposite edges of the second polarizing plate do not protrude from the liquid crystal panel.

8. The liquid crystal display device according to claim 7 , wherein the adhesive covers the first pair of opposite edges of the second polarizing plate and exposes the second pair of opposite edges of the second polarizing plate.

9. A liquid crystal display device, comprising:
a backlight unit
a liquid crystal panel including first and second substrates, a liquid crystal layer between the first and second substrates;
a first polarizing plate between the first substrate and the backlight unit;
a bottom frame supporting the first polarizing plate;
a main frame including first and second guide portions corresponding to a first pair of opposite side surfaces of the bottom frame; and
an adhesive securing a portion of the bottom frame to an edge of the first polarizing plate and to an edge of the first substrate,
wherein the first pair of opposite side surfaces of the bottom frame face the first and second guide portions of the main frame, and a second pair of opposite side surfaces of the bottom frame directly face a light guide plate of the backlight unit, the second pair of opposite side surfaces including the portion of the bottom frame secured by the adhesive to the edge of the first polarizing plate and to the edge of the first substrate.

10. The liquid crystal display device according to claim 1 , wherein the adhesive covers a first side surface of the first polarizing plate and exposes a second side surface of the first polarizing plate.

Assignees

• Lg Display Co Ltd

Inventors

• Jeong Hae-Hyeon
• Yang Seung-Hoon
• Kim Won-Tae
• Kim Min-Woo
• Lee Kwang-Min
• Kim Mi-Ra

Classifications

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B2405/00

  Adhesive articles, e.g. adhesive tapes · CPC title

• G02B6/0036

  2-D arrangement of prisms, protrusions, indentations or roughened surfaces · CPC title

• G02F1/133308 Primary

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

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title