Back to results
US 2017/0322459 A1Published application
Display panel and display device
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorXinhui ZHONG
Life of this patent
Estimating the term…
Abstract
A liquid crystal medium composition is provided with a negative liquid crystal material; at least one polymerizable monomer which is polymerized under a UV irradiation; and at least one alignment assistant including a polar portion and a non-polar portion. The polar portion is connected with the non-polar portion by a bonding group. The liquid crystal medium composition can achieve the vertical alignment without the PI alignment layer by improving the liquid crystal material.
Claims18
A liquid crystal medium composition, comprising:
- a negative liquid crystal material;
- at least one polymerizable monomer which is polymerized under a UV irradiation;
- and
- at least one alignment assistant including a polar portion and a non-polar portion, wherein the polar portion is connected with the non-polar portion by a bonding group;
- wherein the alignment assistant has a structure as given in one of the following formulas:
- wherein, from the Formula 1 to the Formula 4, L1 represents a first six-member ring located at the non-polar portion, L2 represents a second six-member ring located at the polar portion, L3 represents a third six-member ring located at the polar portion, and L4 represents a fourth six-member ring located at the polar portion;
- h is a benzene ring connected with the non-polar portion or a first substituent of the first six-member ring;
- m is the number of the benzene ring at the same non-polar portion or the number of the first substituent of the first six-member ring;
- and m is an integer of 0-4;
- wherein T1 is a first end group on the first six-member ring, which comprises a carbon chain having 1 to 25 carbon atoms;
- the first end group is selected from one of —O—, —COO—, —OCO—, —CH2O—, —OCH2O—, —O(CH2)2O— and —COCH2—;
- wherein a is a benzene ring connected with the polar portion, or a second substituent of the second six-member ring, the third six-member ring or the fourth six-member ring;
- n is the number of the benzene ring at the same polar portion, or the number of the second substituent of the second six-member ring, the third six-member ring or the fourth six-member ring;
- and n is an integer of 0-4;
- wherein T2 is a benzene ring on the polar portion, or a second end group on the second six-member ring, the third six-member ring or the fourth six-member ring, which comprises a carbon chain having 1 to 25 carbon atoms;
- and the second end group is selected from at least one of F, Cl, Br, CN, hydroxyl, primary amino group, secondary amino group, tertiary amino group, ether group, ester group and carbonyl group;
- and
- wherein X is the bonding group which is an ether bond or a carbon chain having 1 to 10 carbon atoms.
15 more elements
A liquid crystal medium composition, comprising:
- a negative liquid crystal material;
- at least one polymerizable monomer which is polymerized under a UV irradiation;
- and
- at least one alignment assistant including a polar portion and a non-polar portion, wherein the polar portion is connected with the non-polar portion by a bonding group;
- wherein the alignment assistant has a structure as given in one of the following formulas:
- wherein, from the Formula 1 to the Formula 4, L1 represents a first six-member ring located at the non-polar portion, L2 represents a second six-member ring located at the polar portion, L3 represents a third six-member ring located at the polar portion, and L4 represents a fourth six-member ring located at the polar portion;
- h is a benzene ring connected with the non-polar portion or a first substituent of the first six-member ring;
- m is the number of the benzene ring at the same non-polar portion or the number of the first substituent of the first six-member ring;
- and m is an integer of 0-4;
- T1 is a first end group on the first six-member ring, which comprises a carbon chain having 1 to 25 carbon atoms;
- a is a benzene ring connected with the polar portion, or a second substituent of the second six-member ring, the third six-member ring or the fourth six-member ring;
- n is the number of the benzene ring at the same polar portion or the number of the second substituent of the second six-member ring, the third six-member ring or the fourth six-member ring;
- and n is an integer of 0-4;
- T2 is a benzene ring on the polar portion, or a second end group on the second six-member ring, the third six-member ring or the fourth six-member ring, which comprises a carbon chain having 1 to 25 carbon atoms;
- and
- X is the bonding group which is an ether bond or a carbon chain having 1 to 10 carbon atoms.
13 more elements
Dependencies are inferred from the claim text.