Liquid crystal display

Patent metadata

Field	Value
Publication number	US-9454040-B2
Application number	US-201414337379-A
Country	US
Kind code	B2
Filing date	Jul 22, 2014
Priority date	Jan 10, 2014
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

A liquid crystal display is provided, including a first insulating substrate; a second insulating substrate facing the first insulating substrate; a pixel electrode disposed on the first insulating substrate; a common electrode disposed on the first insulating substrate or the second insulating substrate; a first alignment layer disposed on the first insulating substrate; a second alignment layer disposed on the second insulating substrate; and a liquid crystal layer disposed between the first insulating substrate and the second insulating substrate, in which at least one of the first alignment layer and the second alignment layer include a main chain and a plurality of side chains which are connected to the main chain, and at least one of the plurality of side chains includes a reactive mesogen including a vertical expression group and at least two photoreactor groups connected to the vertical expression group.

First claim

What is claimed is:

1. A liquid crystal display, comprising:
a first insulating substrate;
a second insulating substrate facing the first insulating substrate;
a pixel electrode disposed on the first insulating substrate;
a common electrode disposed on the first insulating substrate or the second insulating substrate;
a first alignment layer disposed on the first insulating substrate;
a second alignment layer disposed on the second insulating substrate; and
a liquid crystal layer disposed between the first insulating substrate and the second insulating substrate,
wherein
at least one of the first alignment layer and the second alignment layer comprises
at least one compound represented by Chemical Formula 1 and Chemical Formula 2:

wherein in Chemical Formulas 1 and 2,
n is a natural number greater than or equal to 1
A is

wherein n is a natural number greater than or equal to 1;
B is

each X is independently selected from

each Y is independently selected from

wherein n is a natural number greater than or equal to 1;
T is N,

M is

and
each Z is independently selected from

wherein n is a natural number greater than or equal to 1.

2. The liquid crystal display of claim 1 , wherein
at least one Y in Chemical Formula 2 is a

wherein n is a natural number greater than or equal to 1.

3. The liquid crystal display of claim 1 , wherein
at least one of the first alignment layer and the second alignment layer comprise a diamine compound and a dianhydride compound, and
the diamine compound and the dianhydride compound are present at a mole ratio of 1:1.

4. The liquid crystal display of claim 1 , wherein
the common electrode is disposed on the second insulating substrate, and
the pixel electrode comprises a first subpixel electrode and a second subpixel electrode respectively comprising cruciform stem parts, and a plurality of fine branch parts extending from the cruciform stem parts.

5. The liquid crystal display of claim 4 , wherein
the pixel electrode is divided into four sub-regions by the cruciform stem parts.

6. The liquid crystal display of claim 5 , wherein
the fine branch parts extend in a different direction in each of the sub-regions.

7. The liquid crystal display of claim 4 , wherein
neighboring fine branch parts are orthogonal to each other.

8. The liquid crystal display of claim 4 , wherein
a width of the fine branch part is about 2.5 μm to about 5.0 μm.

Assignees

• Samsung Display Co Ltd

Inventors

• Lim Ho

Classifications

• A01K61/00 Primary

  Culture of aquatic animals (receptacles for live fish, e.g. aquaria, A01K63/00) · CPC title

• G02F1/133788

  by light irradiation, e.g. linearly polarised light photo-polymerisation · CPC title

• G02F1/134309

  characterised by their geometrical arrangement · CPC title

• G02F1/133711 Primary

  by organic films, e.g. polymeric films · CPC title

• Y10T428/10

  Cross-Sectional Technologies · mapped topic