Lenticular lens sheet, display apparatus and electronic equipment

Patent metadata

Field	Value
Publication number	US-2016018566-A1
Application number	US-201514800297-A
Country	US
Kind code	A1
Filing date	Jul 15, 2015
Priority date	Jul 16, 2014
Publication date	Jan 21, 2016
Grant date	—

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 the 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 lens.

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 lens 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 lens has 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 the height of the cylindrical lens 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 lens is 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

• G02B3/005 Primary

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

• G02B30/27

  involving lenticular arrays · CPC title

• G02B3/0075

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

• G02B3/0068

  arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements (G02B5/1885, G02B17/002, G02B30/27 take precedence) · CPC title