Liquid crystal display

Patent metadata

Field	Value
Publication number	US-10620480-B2
Application number	US-201715805648-A
Country	US
Kind code	B2
Filing date	Nov 7, 2017
Priority date	Nov 8, 2016
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A liquid crystal display includes: a first substrate; a second substrate overlapping the first substrate; a liquid crystal layer between the first substrate and the second substrate and including liquid crystal molecules; and a plurality of protrusions between the first substrate and the liquid crystal layer, between the second substrate and the liquid crystal layer, or a combination thereof, wherein the plurality of protrusions includes a polymer of a compound represented by Formula 1.

First claim

What is claimed is:

1. A liquid crystal display comprising:
a first substrate;
a second substrate overlapping the first substrate;
a liquid crystal layer between the first substrate and the second substrate and comprising liquid crystal molecules; and
a plurality of protrusions between the first substrate and the liquid crystal layer, between the second substrate and the liquid crystal layer, or a combination thereof, wherein
the plurality of protrusions comprises a polymer of a compound represented by Formula 1:

wherein
A 1 and A 2 are independently —H, —OH,

wherein A 1 and A 2 are not both —H,
P 1 and P 2 are independently

n and m are independently an integer between 1 and 12, and
n is less than m.

2. The liquid crystal display of claim 1 , wherein
the compound of Formula 1 is a compound represented by Formula 2:

wherein
A 1 and A 2 are independently —H, —OH,

wherein A 1 and A 2 are not both —H,
n and m are independently an integer between 1 and 12, and
n is less than m.

3. The liquid crystal display of claim 1 , wherein
the compound of Formula 1 is a compound represented by Formula 3:

wherein P 1 and P 2 are independently

n and m are independently an integer between 1 and 12, and
n is less than m.

4. The liquid crystal display of claim 1 , wherein
the compound of Formula 1 is a compound represented by Formula 1-1:

5. The liquid crystal display of claim 1 , wherein
the plurality of protrusions is between the first substrate and the liquid crystal layer and
between the second substrate and the liquid crystal layer.

6. The liquid crystal display of claim 5 , wherein
an alignment layer is not present between the first substrate and the plurality of protrusions and between the second substrate and the plurality of protrusions.

7. The liquid crystal display of claim 1 , wherein the liquid crystal display comprises:
a first electrode between the first substrate and the liquid crystal layer, and
a second electrode between the second substrate and the liquid crystal layer, and
wherein the plurality of protrusions is between the first electrode and the liquid crystal layer, between the second substrate and the second electrode, or a combination thereof.

8. The liquid crystal display of claim 1 , wherein
the plurality of protrusions is between the first substrate and the liquid crystal layer, and
an alignment layer is between the second substrate and the liquid crystal layer.

9. The liquid crystal display of claim 8 , wherein
the liquid crystal display is a curved liquid crystal display.

10. The liquid crystal display of claim 8 , wherein
the plurality of protrusions is between the alignment layer and the liquid crystal layer, and
a number of the plurality of protrusions between the first substrate and the liquid crystal layer is greater than a number of the plurality of protrusions between the alignment layer and the liquid crystal layer.

11. The liquid crystal display of claim 1 , wherein
the liquid crystal layer does not comprise a reactive mesogen.

12. The liquid crystal display of claim 1 , wherein the liquid crystal layer comprises the compound represented by Formula 1.

Assignees

• Samsung Display Co Ltd
• Samsung Displa Co Ltd

Inventors

• Yang Gi Hoon
• Suh Duck Jong
• Lim Ho
• Chei Suk-Kung
• Han Min-Joo

Classifications

• G02F1/1337 Primary

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title

• C09K19/56 Primary

  Aligning agents · CPC title

• C08F122/20

  Esters containing oxygen in addition to the carboxy oxygen · CPC title

• G02F1/133707

  Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes · CPC title