Conducting polymeric side-chain liquid crystals and an orientation layer using the same

• US 5,538,666 A
• Filed: 12/29/1994
• Issued: 07/23/1996
• Est. Priority Date: 08/27/1994
• Status: Expired due to Fees

• Current Assignee: Samsung Display Devices Co., Ltd. (Samsung SDI Company Limited)
• Original Assignee: Samsung Display Devices Co., Ltd. (Samsung SDI Company Limited)
• Inventors: Jin, Sung-ho
• Primary Examiner(s): WU, SHEAN CHIU
• Application Number:
  US08/366,317
• Time in Patent Office: 572 Days
• Field of Search: 252/299.01, 252/299.61, 252/299.66, 252/299.68, 428/411.1, 428/414, 359/99, 525/171, 525/185, 525/256, 528/380, 534/798, 549/70, 549/74
• US Class Current: 252/299.01
• CPC Class Codes: C07D 333/16 by oxygen atoms
• CPC Class Codes: C09K 19/02 characterised by optical, electrical or physical properties of the components, in general
• CPC Class Codes: C09K 19/3847 Polyvinylethers
• CPC Class Codes: C09K 19/3852 Poly(meth)acrylate derivatives
• CPC Class Codes: G02F 1/133711 by organic films, e.g. polymeric films
• CPC Class Codes: G02F 1/133796 having conducting property
• CPC Class Codes: H01B 1/127 comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

Conducting polymeric side chain liquid crystals are prepared by incoporating liquid crystalline compounds in a main chain selected from the group consisting of acetylene derivatives and thiophene derivatives. The liquid crystal has conductivity and liquid crystallinity at the same time and is soluble in most organic solvents, giving good processability. The liquid crystals are advantageously used as a polymer membrane as well as an orientation layer.

Claims

1. A conductive liquid crystalline polymer, wherein the polymer has the formula ##STR13## wherein R₁ is H or ##STR14## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O(CH₂ CH₂ O)_m where m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ where p is 0 to 6, and n is a positive integer.

2. A conductive liquid crystalline polymer, wherein the polymer is a mixture of ##STR15## wherein R₁ is H or ##STR16## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O (CH₂ CH₂ O)_m where m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ where p is 0 to 6, and n is a positive integer.

3. A conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR17##

4. A conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR18##

5. A conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR19##

6. A conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR20##

7. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer has the formula ##STR21## wherein R₁ is H or ##STR22## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O(CH₂ CH₂ O)_m where m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ were p is 0 to 6, and n is a positive integer.

8. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer is a mixture of ##STR23## wherein R₁ is H or ##STR24## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O (CH₂ CH₂ O)_m were m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ where p is 0 to 6, and n is a positive integer.

9. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR25##

10. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR26##

11. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR27##

12. An orientation layer for use in a liquid crystal display device comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR28##

13. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer has the formula ##STR29## where R₁ is H or ##STR30## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O(CH₂ CH₂ O)_m were m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ were p is 0 to 6, and n is a positive integer.

14. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer is a mixture of ##STR31## wherein R₁ is H or ##STR32## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O(CH₂ CH₂ O)_m were m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ were p is 0 to 6, and n is a positive integer.

15. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer is made from a monomer of the formula ##STR33##

16. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer is made from a monomer of the formula ##STR34##

17. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer is made from a monomer of the formula ##STR35##

18. A polymer membrane for use in separating gases comprising a conductive liquid crystalline polymer, wherein the conductive liquid crystalline polymer is made from a monomer of the formula ##STR36##

19. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer has the formula ##STR37## wherein R₁ is H or ##STR38## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O) or CH₂ O(CH₂ CH₂ O)_m where m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ where p is 0 to 6, and n is a positive integer.

20. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer is a mixture of ##STR39## wherein R₁ is H or ##STR40## X is CO₂ (CH₂)_m O, CH₂ O(CH₂)_m O, CO₂ (CH₂ CH₂ O)_m or CH₂ O(CH₂ CH₂ O)_m were m is 1 to 6, Y is a direct bond, CO₂, CH=N or N=N, R₂ is CN or O(CH₂)_p CH₃ where p is 0 to 6, and n is a positive integer.

21. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR41##

22. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR42##

23. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR43##

24. A liquid crystal display device comprising an orientation layer comprising a conductive liquid crystalline polymer, wherein the polymer is made from a monomer of the formula ##STR44##