Liquid crystal display including protrusions in a liquid crystal layer

Patent metadata

Field	Value
Publication number	US-10761374-B2
Application number	US-201816138274-A
Country	US
Kind code	B2
Filing date	Sep 21, 2018
Priority date	Feb 23, 2018
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A liquid crystal display according to an exemplary embodiment of the present invention includes: a first display panel and a second display panel. A liquid crystal layer is between the first display panel and the second display panel with a sealant therebetween. The first display panel includes a display area and a non-display area. First light blocking members are disposed in the non-display area. The liquid crystal layer includes a plurality of liquid crystal molecules and a plurality of protrusions. The protrusions are adjacent to at least one of the first display panel or the second display panel. The protrusions include a polymer including a compound represented by Chemical Formula 1 or a polymer including a compound represented by Chemical Formula 2:

First claim

What is claimed is:

1. A liquid crystal display comprising:
a first display panel and a second display panel that are disposed facing each other;
a liquid crystal layer that is disposed between the first display panel and the second display panel; and
a sealant disposed between the first display panel and the second display panel, bonding the first display panel and the second display panel to each other,
wherein the first display panel comprises a display area, a non-display area adjacent to the display area, and first light blocking members that are disposed in the non-display area,
the first light blocking members comprise red color filters and blue color filters that are disposed on the red color filters,
the liquid crystal layer comprises a plurality of liquid crystal molecules and a plurality of protrusions,
the protrusions are adjacent to at least one of the first display panel or the second display panel, and
the protrusions comprise a polymer including a compound represented by Chemical Formula 1 or a polymer including a compound represented by Chemical Formula 2:

wherein A 1 and A 2 are each selected from a —H, —OH,

wherein A 1 and A 2 are not simultaneously —H,
P 1 is selected from

and
n is an integer selected from 1 to 12,

wherein A 3 and A 4 are each selected from —H, —OH,

wherein A 3 and A 4 are not simultaneously —H,
P 2 and P 3 are each selected from

and
x and y are each an integer selected from 1 to 12, wherein x is an integer lower than y.

2. The liquid crystal display of claim 1 , wherein the protrusions include a polymer including a compound represented by Chemical Formula 1, and the liquid crystal layer further comprises a reactive mesogen.

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

wherein A 1 and A 2 are each selected from of —H, —OH,

wherein A 1 and A 2 are not simultaneously —H, and
n is an integer selected from 1 to 12.

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

wherein P 1 is selected from

and
n is an integer selected from 1 to 12.

5. The liquid crystal display of claim 2 , wherein the compound represented by Chemical Formula 1 is a compound represented by Chemical Formula 1-3:

6. The liquid crystal display of claim 1 , wherein the protrusions include a polymer including a compound represented by Chemical Formula 2.

7. The liquid crystal display of claim 6 , wherein the compound represented by Chemical Formula 2 is a compound represented by Chemical Formula 2-1:

wherein A 3 and A 4 are each selected from —H, —OH,

wherein A 3 and A 4 are not simultaneously —H, and
x and y are each an integer selected from 1 to 12, wherein x is an integer lower than y.

8. The liquid crystal display of claim 6 , wherein the compound represented by Chemical Formula 2 is a compound represented by Chemical Formula 2-2:

wherein P 2 and P 3 are each selected from

and
x and y are each an integer selected from 1 to 12, wherein x is an integer lower than y.

9. The liquid crystal display of claim 6 , wherein the compound represented by Chemical Formula 2 is a compound represented by Chemical Formula 2-3:

10. The liquid crystal display of claim 1 , wherein the sealant is disposed in the non-display area, and the first light blocking members are disposed between the sealant and the display area.

11. The liquid crystal display of claim 1 , wherein the first display panel comprises a first substrate and a first electrode that is disposed on a side of the first substrate,
the second display panel comprises a second substrate and a second electrode that is disposed on a side of the second substrate, and
the protrusions are disposed adjacent to each of the first electrode and the second electrode.

12. The liquid crystal display of claim 11 , wherein the first electrode comprises a first subpixel electrode and a second subpixel electrode that are disposed apart from each other.

13. The liquid crystal display of claim 12 , wherein the first display panel further comprises second light blocking members that are disposed between the first subpixel electrode and the second subpixel electrode.

14. The liquid crystal display of claim 13 , wherein the second light blocking members comprise red color filters and blue color filters that are disposed on the red color filters.

15. The liquid crystal display of claim 1 , wherein the first display panel comprises a first substrate, a first electrode, and a first alignment layer, wherein the first electrode and the first alignment layer are sequentially stacked on a side of the first substrate, the second display panel comprises a second substrate and a second electrode that is disposed on a side of the second substrate, and the protrusions are adjacent to the second electrode.

16. The liquid crystal display of claim 1 , wherein the first display panel comprises a first substrate and a first electrode that is disposed on a side of the first substrate, the second display panel comprises a second substrate, a second electrode, and a second alignment layer, wherein the second electrode and the second alignment layer are sequentially stacked on a side of the second substrate, and the protrusions are adjacent to the first electrode.

17. A liquid crystal display comprising:
a first display panel and a second display panel that face each other;
a liquid crystal layer that is disposed between the first display panel and the second display panel; and
a sealant disposed between the first display panel and the second display panel, bonding the first display panel and the second display panel to each other,
wherein the fi

Assignees

• Samsung Display Co Ltd

Inventors

• Yang Gi Hoon
• Sung Ju Young
• Kwon Min Ki
• Seo Chu Young
• Lee Bo Seul

Classifications

• C09K19/3402 Primary

  having oxygen as hetero atom (sugars C09K19/0422) · CPC title

• G02F1/133707 Primary

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

• C08F22/20

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

• G02F2201/123

  pixel · CPC title

• C08F20/30

  containing aromatic rings in the alcohol moiety · CPC title