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US 10,831,066 B2Granted
Liquid crystal display device and alignment film
AssigneeSharp Kabushiki Kaisha
InventorsHiroshi Tsuchiya, Masanobu Mizusaki
Life of this patent
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Abstract
The present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio for a long period of time and thereby reducing generation of image sticking not only at room temperature but also at high temperatures. The liquid crystal display device includes: paired substrates; a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules; and an alignment film disposed between at least one of the paired substrates and the liquid crystal layer, the alignment film containing quantum dots.
Claims19
A liquid crystal display device comprising:
- paired substrates;
- a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules;
- and
- an alignment film disposed between at least one of the paired substrates and the liquid crystal layer,
- the alignment film containing a polymer including quantum dots and having a repeating structural unit represented by the following formula (A-2):
- wherein QD denotes quantum dots;
- wherein Xs are the same as or different from each other, and each represent any one of the following formulas (X-A1) to (X-A12) or (X-B1) to (X-B4):
- wherein at least one hydrogen atom in the formulas (X-A1) to (X-A12) or (X-B1) to (X-B4) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Ys are the same as or different from each other, and each represent any one of the following formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8):
- wherein at least one hydrogen atom in the formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Zs are optional structures, the same as or different from each other, and each represent any one of the following formulas (Z-A1) to (Z-A8), (Z-B1) to (Z-B7), (Z-C1) to (Z-C2) or (Z-D1) to (Z-D21):
- wherein m is a real number falling within a range of 0<m≤0.5;
- and
- wherein p denotes a degree of polymerization and is an integer of 1 or greater.
11 more elements
A liquid crystal display device comprising:
- paired substrates;
- a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules;
- and
- an alignment film disposed between at least one of the paired substrates and the liquid crystal layer,
- the alignment film containing a polymer including quantum dots and having a repeating structural unit represented by the following formula (A-1):
- wherein QD denotes quantum dots;
- wherein Xs are the same as or different from each other, and each represent any one of the following formulas (X-A1) to (X-A12) or (X-B1) to (X-B4):
- wherein at least one hydrogen atom in the formulas (X-A1) to (X-A12) or (X-B1) to (X-B4) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Ys are the same as or different from each other, and each represent any one of the following formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8):
- wherein at least one hydrogen atom in the formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Zs are optional structures, the same as or different from each other, and each represent any one of the following formulas (Z-A1) to (Z-A8), (Z-B1) to (Z-B7), (Z-C1) to (Z-C2) or (Z-D1) to (Z-D21):
- wherein W1 is an optional structure and denotes a spacer linking group;
- wherein m is a real number falling within a range of 0<m≤0.5;
- and
- wherein p denotes a degree of polymerization and is an integer of 1 or greater.
12 more elements
A liquid crystal display device comprising:
- paired substrates;
- a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules;
- and
- an alignment film disposed between at least one of the paired substrates and the liquid crystal layer,
- the alignment film containing a polymer including quantum dots and having a repeating structural unit represented by the following formula (A-3):
- wherein QD denotes quantum dots;
- wherein Xs are the same as or different from each other, and each represent any one of the following formulas (X-A1) to (X-A12) or (X-B1) to (X-B4):
- wherein at least one hydrogen atom in the formulas (X-A1) to (X-A12) or (X-B1) to (X-B4) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Ys are the same as or different from each other, and each represent any one of the following formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8):
- wherein at least one hydrogen atom in the formulas (Y-A1) to (Y-A16) or (Y-B1) to (Y-B8) may be replaced by a fluorine group, a methyl group, an ethyl group, or an isopropyl group;
- wherein Zs are optional structures, the same as or different from each other, and each represent any one of the following formulas (Z-A1) to (Z-A8), (Z-B1) to (Z-B7), (Z-C1) to (Z-C2) or (Z-D1) to (Z-D21):
- wherein m is a real number falling within a range of 0<m≤0.5;
- and
- wherein p denotes a degree of polymerization and is an integer of 1 or greater.
11 more elements
Dependencies are inferred from the claim text.