Liquid crystal apparatus and electronic apparatus

Patent metadata

Field	Value
Publication number	US-9933661-B2
Application number	US-201615084456-A
Country	US
Kind code	B2
Filing date	Mar 29, 2016
Priority date	Apr 13, 2015
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A liquid crystal apparatus includes a substrate that includes a convex portion on one surface, a liquid crystal layer that is arranged on the one surface side of the substrate, an inorganic alignment film that is arranged between the substrate and the liquid crystal layer, and has a column structure inclined to the one surface of the substrate, and an organic alignment film, in which the inorganic alignment film has a concave portion of which a thickness becomes thin in at least a portion of the column structure, at a position to be in contact with a portion that does not face an inclined direction side of the column structure in a side surface of the convex portion, and the organic alignment film is arranged in the concave portion.

First claim

What is claimed is:

1. A liquid crystal apparatus comprising:
a substrate that includes a convex portion on one surface;
a liquid crystal layer that is arranged on the one surface side of the substrate;
an inorganic alignment film that is arranged between the substrate and the liquid crystal layer, and has a column structure inclined to the one surface of the substrate; and
an organic alignment film,
wherein the inorganic alignment film has a concave portion of which a thickness becomes thin in at least a portion of the column structure, the concave portion is arranged at a position to be in contact with a portion that does not face an inclined direction side of the column structure in a side surface of the convex portion, and
the organic alignment film is arranged in the concave portion.

2. The liquid crystal apparatus according to claim 1 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is different from the alignment state of the liquid crystal layer at a position which is different from the concave portion.

3. The liquid crystal apparatus according to claim 1 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is the same as the alignment state of the liquid crystal layer at a position which is different from the concave portion.

4. The liquid crystal apparatus according to claim 3 ,
wherein the organic alignment film has a portion arranged in the concave portion, and a portion arranged in a position which is different from the concave portion.

5. The liquid crystal apparatus according to claim 1 ,
wherein the organic alignment film is an organic silane compound.

6. An electronic apparatus comprising:
the liquid crystal apparatus according to claim 1 .

7. A liquid crystal apparatus comprising:
a substrate that includes a convex portion on one surface;
a liquid crystal layer that is arranged on the one surface side of the substrate;
an inorganic alignment film that is arranged between the substrate and the liquid crystal layer, and has a column structure inclined to the one surface of the substrate; and
an organic alignment film,
wherein the inorganic alignment film has a concave portion of which a thickness becomes thin in at least a portion of the column structure, the concave portion is arranged at a position to be in contact with a surface where the column structure is not formed in a side surface of the convex portion, and
the organic alignment film is arranged in the concave portion.

8. The liquid crystal apparatus according to claim 7 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is different from the alignment state of the liquid crystal layer at a position which is different from the concave portion.

9. The liquid crystal apparatus according to claim 7 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is the same as the alignment state of the liquid crystal layer at a position which is different from the concave portion.

10. The liquid crystal apparatus according to claim 9 ,
wherein the organic alignment film has a portion arranged in the concave portion, and a portion arranged in a position which is different from the concave portion.

11. The liquid crystal apparatus according to claim 7 ,
wherein the organic alignment film is an organic silane compound.

12. A liquid crystal apparatus comprising:
a substrate that includes a convex portion on one surface;
a liquid crystal layer that is arranged on the one surface side of the substrate;
an inorganic alignment film that is arranged between the substrate and the liquid crystal layer, and has a column structure inclined to the one surface of the substrate; and
an organic alignment film,
wherein the inorganic alignment film has a concave portion of which a thickness becomes thin in at least a portion of the column structure in the vicinity of the convex portion, and
the organic alignment film is arranged in the concave portion.

13. An electronic apparatus comprising:
the liquid crystal apparatus according to claim 7 .

14. The liquid crystal apparatus according to claim 12 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is different from the alignment state of the liquid crystal layer at a position which is different from the concave portion.

15. The liquid crystal apparatus according to claim 12 ,
wherein a thickness of the organic alignment film is a thickness such that an alignment state of the liquid crystal layer at the concave portion becomes an alignment state that is the same as the alignment state of the liquid crystal layer at a position which is different from the concave portion.

16. The liquid crystal apparatus according to claim 15 ,
wherein the organic alignment film has a portion arranged in the concave portion, and a portion arranged in a position which is different from the concave portion.

17. The liquid crystal apparatus according to claim 12 ,
wherein the organic alignment film is an organic silane compound.

18. An electronic apparatus comprising:
the liquid crystal apparatus according to claim 12 .

Assignees

• Seiko Epson Corp

Inventors

• Takemura Koichi
• Yoshida Shohei
• Noguchi Toshiyuki

Classifications

• G02F1/133719 Primary

  with coupling agent molecules, e.g. silane · CPC title

• G02F2001/133742

  Physics · mapped topic

• G02F1/133734

  by obliquely evaporated films, e.g. Si or SiO2 films · CPC title

• G02F2001/13712

  Physics · mapped topic

• G02F1/133742

  for homeotropic alignment · CPC title