LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

• US 20180010045A1
• Filed: 03/13/2017
• Published: 01/11/2018
• Est. Priority Date: 07/07/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: BAE, Ji Hong, HONG, Sung-Hwan, OH, Keun Chan
• Granted Patent: US 10,221,358 B2
• Time in Patent Office: Days
• CPC Class Codes: C09K 19/3066 in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
• CPC Class Codes: C09K 19/3405 the heterocyclic ring being a five-membered ring
• CPC Class Codes: C09K 19/56 Aligning agents
• CPC Class Codes: C09K 2019/122 Ph-Ph
• CPC Class Codes: C09K 2019/123 Ph-Ph-Ph
• CPC Class Codes: C09K 2019/124 Ph-Ph-Ph-Ph
• CPC Class Codes: C09K 2019/3004 Cy-Cy
• CPC Class Codes: C09K 2019/3009 Cy-Ph
• CPC Class Codes: C09K 2019/301 Cy-Cy-Ph
• CPC Class Codes: C09K 2019/3016 Cy-Ph-Ph
• CPC Class Codes: C09K 2019/3027 Compounds comprising 1,4-cyclohexylene and 2,3-difluoro-1,4-phenylene
• CPC Class Codes: C09K 2019/3408 Five-membered ring with oxygen(s) in fused, bridged or spiro ring systems
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/1337 Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• CPC Class Codes: G02F 1/133707 Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes

Abstract

A liquid crystal composition includes at least one of liquid crystal molecules represented by Chemical Formulas A and B:

where in Chemical Formulas A and B, L₁ to L₄ are each independently —H, —F, —Cl, —OCF₃, —CF₃, —CH₂F, or —CHF₂, R₁ to R₄ are each independently hydrogen, a halogen, a cyano group, a C1-C12 alkyl group, or a C1-C12 alkoxy group, and Z₁ to Z₄ are each independently a single bond, —O—, —COO—, —OCO—, —CF₂O—, —OCF₂—, —CH₂O—, —OCH₂—, —SCH₂—, —CH₂S—, —CH₂CH₂—, —C₂F₄—, —CH₂CF₂—, —CF₂CH₂—, —CH_2n—, where n is a natural number of 1 to 12, —CH═CH—, —CF═CF—, —CH═CF—, —CF═CH—, —C═C—, or —CH═CHCH₂O.

Claims

1. A liquid crystal composition comprising:

at least one of liquid crystal molecules represented by Chemical Formulas A and B;

2. The liquid crystal composition of claim 1, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas N-1 to N-4;

3. The liquid crystal composition of claim 2, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas N-5 to N-9;

4. The liquid crystal composition of claim 2, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas P-1 to P-3;

5. The liquid crystal composition of claim 4, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas P-4 to P-10;

6. The liquid crystal composition of claim 1, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas N-1 to N-3, N-10, and N-11;

7. The liquid crystal composition of claim 6, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas N-5 to N-9;

8. The liquid crystal composition of claim 6, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas P-1 to P-3;

9. The liquid crystal composition of claim 8, further comprising:

at least one of liquid crystal molecules represented by Chemical Formulas P-4 to P-10;

10. The liquid crystal composition of claim 1, wherein:

Chemical Formula A is Chemical Formula A-1, and Chemical Formula B is Chemical Formula B-1;

11. The liquid crystal composition of claim 1, wherein:

the at least one liquid crystal molecule represented by Chemical Formulas A and Bis present in an amount of about 1 weight percent to about 10 weight percent, based on a total weight of the liquid crystal composition.

12. A liquid crystal display comprising:

a first substrate,

a second substrate overlapping the first substrate, and

a liquid crystal layer positioned between the first substrate and the second substrate, and comprising at least one of liquid crystal molecules represented by Chemical Formulas A and B;

13. The liquid crystal display of claim 12, wherein:

the liquid crystal layer further comprise at least one of liquid crystal molecules represented by Chemical Formulas N-1 to N-4;

14. The liquid crystal display of claim 13, wherein:

the liquid crystal layer further comprises at least one of liquid crystal molecules represented by Chemical Formulas P-1 to P-3;

15. The liquid crystal display of claim 12, wherein:

the liquid crystal layer further comprises at least one of liquid crystal molecules represented by Chemical Formulas N-1 to N-3, N-10, and N-11;

16. The liquid crystal display of claim 15, wherein:

the liquid crystal layer further comprises at least one of liquid crystal molecules represented by Chemical Formulas P-1 to P-3;

17. The liquid crystal display of claim 12, wherein:

Chemical Formula A is Chemical Formula A-1, and Chemical Formula B is Chemical Formula B-1;

18. The liquid crystal display of claim 12, further comprising:

a light blocking member between the first substrate and the liquid crystal layer,

wherein the light blocking member comprises a main light blocking part and a spacer connected to the main light blocking part.

19. The liquid crystal display of claim 12, further comprising:

a first alignment layer between the first substrate and the liquid crystal layer,

a second alignment layer between the second substrate and the liquid crystal layer, and

a plurality of bumps between the first alignment layer and the liquid crystal layer.

20. The liquid crystal display of claim 19, wherein:

a pre-tilt of liquid crystal molecules adjacent to the first alignment layer is different from a pre-tilt of liquid crystal molecules adjacent to the second alignment layer.