Printed wiring line, electronic device, touch panel, gravure plate, printed wiring line formation method, touch panel production method, and electronic device production method

Patent metadata

Field	Value
Publication number	US-11310909-B2
Application number	US-202016932025-A
Country	US
Kind code	B2
Filing date	Jul 17, 2020
Priority date	Dec 1, 2015
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

A printed wiring line formed on a substrate connects two different points on the substrate which are connectable by another printed wiring line with a shape of a straight-line segment and has a shape corresponding to at least one of: 1) a shape with no linear part parallel to the straight-line segment; 2) a shape with line segments connected in series, each line segment having a shape with no linear part parallel to the straight-line segment; 3) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, length of the part parallel to the straight-line segment being not more than length of the straight-line segment; and 4) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment.

First claim

What is claimed is:

1. A gravure plate for gravure offset printing, comprising:
a surface to come into contact with a blanket used in the gravure offset printing;
a recess on the surface to retain ink used in the gravure offset printing, the recess having a bottom surface and two side surfaces to define a volume of space inside the recess and the recess defining a pattern of a wiring line to be printed by the gravure offset printing; and
projections on the bottom surface of the recess, the projections having a total volume of space that the projections occupy and the projections protruding inside the recess to reduce the volume of the recess by the total volume of the projections.

2. The gravure plate according to claim 1 , wherein
each of the projections has a top not protruding beyond the surface of the gravure plate.

3. The gravure plate according to claim 1 , wherein
the projections stand in a row in a longitudinal direction of the recess, and
a number of the projections present in a width direction of the recess between the two side surfaces is one.

4. The gravure plate according to claim 2 , wherein
the projections stand in a row in a longitudinal direction of the recess, and
a number of the projections present in a width direction of the recess between the two side surfaces is one.

5. The gravure plate according to claim 1 , wherein
at least part of the recess connects two different points on the surface of the gravure plate which are connectable by another recess with a shape of a straight-line segment, the at least part of the recess having a shape corresponding to at least one of:
1 ) a shape with no linear part parallel to the straight-line segment;
2 ) a shape in which line segments are connected in series, each line segment having a shape with no linear part parallel to the straight-line segment;
3 ) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, a length of the part parallel to the straight-line segment being not more than half of a length of the straight-line segment; and
4 ) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment.

6. The gravure plate according to claim 2 , wherein
at least part of the recess connects two different points on the surface of the gravure plate which are connectable by another recess with a shape of a straight-line segment, the at least part of the recess having a shape corresponding to at least one of:
1) a shape with no linear part parallel to the straight-line segment;
2) a shape in which line segments are connected in series, each line segment having a shape with no linear part parallel to the straight-line segment;
3) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, a length of the part parallel to the straight-line segment being not more than half of a length of the straight-line segment; and
4) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment.

7. The gravure plate according to claim 3 , wherein
at least part of the recess connects two different points on the surface of the gravure plate which are connectable by another recess with a shape of a straight-line segment, the at least part of the recess having a shape corresponding to at least one of:
1) a shape with no linear part parallel to the straight-line segment;
2) a shape in which line segments are connected in series, each line segment having a shape with no linear part parallel to the straight-line segment;
3) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, a length of the part parallel to the straight-line segment being not more than half of a length of the straight-line segment; and
4) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment.

8. The gravure plate according to claim 4 , wherein
at least part of the recess connects two different points on the surface of the gravure plate which are connectable by another recess with a shape of a straight-line segment, the at least part of the recess having a shape corresponding to at least one of:
1) a shape with no linear part parallel to the straight-line segment;
2) a shape in which line segments are connected in series, each line segment having a shape with no linear part parallel to the straight-line segment;
3) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, a length of the part parallel to the straight-line segment being not more than half of a length of the straight-line segment; and
4) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment.

9. The gravure plate according to claim 5 , wherein
the at least part of the recess includes at least a group of corner parts which protrude toward one side of the straight-line segment, and
one or more of the projections stand at each corner part included in the group of corner parts.

10. The gravure plate according to claim 6 , wherein
the at least part of the recess includes at least a group of corner parts which protrude toward one side of the straight-line segment, and
one or more of the projections stand arc formed at each corner part included in the group of corner parts.

11. An electronic device comprising:
a substrate having a surface; and
a patterned line of conductive ink cured on the surface of the substrate, wherein
the patterned line is a gravure-offset printed line,
the patterned line includes recesses each of which is surrounded by the conductive ink,
the recesses line up in a row in a longitudinal direction of the patterned line and a number of the recesses present in a width direction of the patterned line is one, and
the recesses are originated from projections that a gravure plate used in gravure offset printing for the gravure-offset printed line has, the gravure plate having a recess to retain the conductive ink used in the gravure offset printing and the projections being on at least part of a bottom surface of the recess.

12. The electronic device according to claim 11 , wherein
at least part of the patterned line connects two different points on the surface of the substrate which are connectable by another patterned line with a shape of a straight-line segment, the at least part of the patterned line having a shape corresponding to at least one of:
1) a shape with no linear part parallel to the straight-line segment;
2) a shape in which line segments are connected in series, each line segment having a shape with no linear part parallel to the straight-line segment;
3) a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, a length of the part parallel to the straight-line segment being not more than half of a length of the straight-line segment; and
4) a shape in which line segments are connected in series, each line segment having a shape having a part parallel to the straight-line segment and a part not parallel to the straight-line segment, and wherein
the at least part of the patterned line includes the recesse

Assignees

• Japan Aviation Electronics Ind Ltd

Inventors

• Kogawa Yutaro
• Sato Mitsunori
• Takezawa Yutaka
• Sakaue Akitoshi
• Naito Mitsutoshi

Classifications

• H05K2201/09272

  Layout details of angles or corners · CPC title

• H05K2203/0143

  Using a roller; Specific shape thereof; Providing locally adhesive portions thereon · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• H05K2201/09263

  Meander · CPC title

• H05K1/0296 Primary

  Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295 (H05K1/11 takes precedence; lay-out adapted to mounted component configuration H05K1/18) · CPC title