Lenticular lens sheet, display apparatus and electronic equipment

Patent metadata

Field	Value
Publication number	US-9411077-B2
Application number	US-201514800297-A
Country	US
Kind code	B2
Filing date	Jul 15, 2015
Priority date	Jul 16, 2014
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

Provided are a lenticular lens sheet capable of simultaneously achieving an improvement in visibility due to improving bonding accuracy, and low cost due to shape stabilization during processing the lens, a display apparatus and an electronic equipment including the same. The lenticular lens sheet includes a plurality of cylindrical lenses which extend in a direction parallel to each other; and an alignment mark which has two cylindrical lenses among the plurality of cylindrical lenses, a flat part disposed between the two cylindrical lenses, and a structure which is disposed on the flat part and extends between the two cylindrical lenses.

First claim

What is claimed is:

1. A lenticular lens sheet, comprising:
a plurality of cylindrical lenses which extend in a direction parallel to each other; and
an alignment mark which has two cylindrical lenses among the plurality of cylindrical lenses, a flat part disposed between the two cylindrical lenses, and a structure which is disposed on the flat part and extends between the two cylindrical lenses.

2. The lenticular lens sheet according to claim 1 , wherein
the structure is any one of a cylindrical lens, a hexahedron, and a prism.

3. The lenticular lens sheet according to claim 1 , wherein
the structure intersects the flat part in two straight lines, and the two straight lines are parallel to each other.

4. The lenticular lens sheet according to claim 1 , wherein
the flat part extends in the extending direction of the cylindrical lenses.

5. The lenticular lens sheet according to claim 1 , wherein
the flat part is present only near the structure.

6. The lenticular lens sheet according to claim 1 , wherein
one alignment mark is provided on the same flat part.

7. The lenticular lens sheet according to claim 1 , wherein
the extending direction of the cylindrical lenses is inclined with respect to sides forming an external form of the lenticular lens sheet.

8. The lenticular lens sheet according to claim 1 , wherein
the cylindrical lenses have a lower surface formed in a flat surface and an upper surface formed in a convex surface, and the structure has a lower height than a height of the cylindrical lenses based on the lower surface.

9. The lenticular lens sheet according to claim 1 , wherein
two or more alignment marks are provided on the lenticular lens sheet.

10. The lenticular lens sheet according to claim 1 , wherein
the cylindrical lenses are provided on a glass substrate.

11. A display apparatus, comprising:
a display panel; and
the lenticular lens sheet according to claim 1 , which is attached to the display panel.

12. The display apparatus according to claim 11 , further comprising
a protection film which is attached to an upper surface of the lenticular lens sheet.

13. An electronic equipment, comprising:
the display apparatus according to claim 11 .

Assignees

• Nlt Technologies Ltd

Inventors

• Matsushima Jin
• Shigemura Koji

Classifications

• G02B3/0018

  Reflow, i.e. characterized by the step of melting microstructures to form curved surfaces, e.g. manufacturing of moulds and surfaces for transfer etching · CPC title

• G02B27/62

  Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems · CPC title

• G02B3/005 Primary

  arranged along a single direction only, e.g. lenticular sheets (G02B3/0043 takes precedence) · CPC title

• G02B3/0075

  characterized by non-optical structures, e.g. having integrated holding or alignment means · CPC title

• G02B3/0031

  Replication or moulding, e.g. hot embossing, UV-casting, injection moulding · CPC title