Conductive line structure and sensing device using the same

Patent metadata

Field	Value
Publication number	US-2016139709-A1
Application number	US-201514937898-A
Country	US
Kind code	A1
Filing date	Nov 11, 2015
Priority date	Nov 13, 2014
Publication date	May 19, 2016
Grant date	—

Abstract

In one embodiment, a conductive line structure includes a substrate and a plurality of conductive lines thereon. The substrate has a first area and a second area, and the two areas are separated by at least one borderline. The plurality of conductive lines are disposed at the first area and the second area of the substrate, respectively. The at least one borderline may be a straight line, and the conductive lines disposed at the second area are inclined relative to the at least one borderline. A sensing device using the conductive line structure is also provided.

First claim

What is claimed is:

1 . A conductive line structure, comprising:
a substrate having a first area, a second area, and at least one borderline separating the first area and the second area; and a plurality of conductive lines disposed at the first area and the second area of the substrate; wherein the at least one borderline is a straight line, and the plurality of conductive lines disposed at the second area are inclined relative to the at least one borderline.

2 . The conductive line structure as claimed in claim 1 , wherein at the second area, the conductive lines are a plurality of bending lines extending along a first axis, the first axis is parallel to the at least one borderline, each of the plurality of bending lines has at least one bending and at least two straight-line sections, and at least one of the at least two straight-line sections is inclined relative to the at least one borderline.

3 . The conductive line structure as claimed in claim 2 , wherein the plurality of bending lines are parallel to each other.

4 . The conductive line structure as claimed in claim 2 , wherein the plurality of conductive lines disposed at the first area form a mesh structure, and a border area of the mesh structure is connected to an adjacent bending line of the plurality of bending lines.

5 . The conductive line structure as claimed in claim 4 , wherein the border area of the mesh structure is connected to at least one bending, at least one straight-line section, or at least one bending and at least one straight-line section of the adjacent bending line.

6 . The conductive line structure as claimed in claim 4 , wherein at least one intersection is located at the border area of the mesh structure and connects to at least one bending, at least one straight-line section, or the at least one bending and the at least one straight-line section of the adjacent bending line.

7 . The conductive line structure as claimed in claim 2 , wherein one straight-line section of two adjacent straight-line sections having a same bending line and the first axis forms a first angle, the other straight-line section of the two adjacent straight-line sections and a second axis forms a second angle, the first angle is ranged from 15° to 75°, the second angle is ranged from 75° to 15°, the second axis is a direction of the conductive lines to be printed, and the first axis is orthogonal to the second axis.

8 . The conductive line structure as claimed in claim 2 , wherein the at least one bending forms a fillet or a closed angle.

9 . The conductive line structure as claimed in claim 2 , wherein the at least two straight-line sections have a same length or have different lengths.

10 . The conductive line structure as claimed in claim 2 , wherein the at least two straight-line sections have a same width or have different widths.

11 . The conductive line structure as claimed in claim 1 , wherein a width of each of the plurality of conductive lines disposed at the second area is smaller than or equal to 50 μm.

12 . The conductive line structure as claimed in claim 1 , wherein there exists an angle between the substrate and an edge contour of the the plurality of conductive lines disposed at the second area, and the angle is substantially an acute angle.

13 . The conductive line structure as claimed in claim 1 , wherein each of the plurality of conductive lines has a surface average roughness ranged from 10% to 50%.

14 . A sensing device, comprising:
a substrate; a plurality of conductive lines disposed on the substrate, wherein a portion of the plurality of conductive lines form an active area, and another portion of the plurality of conductive lines form a frame wire area, and the active area and the frame wire area are separated by at least one borderline, wherein the at least one borderline is a straight line, and said another of the plurality of the conductive lines at the frame wire area are inclined relative to the at least one borderline.

15 . The sensing device as claimed in claim 14 , wherein at the frame wire area, said another portion of the plurality of conductive lines are a plurality of bending lines extending along a first axis, the first axis is parallel to the at least one borderline, each of the plurality of bending lines has at least one bending and at least two straight-line sections, and at least one of the at least two straight-line sections is inclined relative to the borderline.

16 . The sensing device as claimed in claim 15 , wherein the plurality of bending lines are parallel to each other.

17 . The sensing device as claimed in claim 15 , wherein the portion of the plurality of conductive lines at the active area form a mesh structure, and an border area of the mesh structure is connected to an adjacent bending line of the plurality of bending lines.

18 . The sensing device as claimed in claim 17 , wherein the border area of the mesh structure is connected to at least one bending, at least one straight-line section, or the at least one bending and the at least one straight-line section of the adjacent bending line.

19 . The sensing device as claimed in claim 17 , wherein at least one intersection is located at the border area of the mesh structure and connected to at least one bending, at least one straight-line section, or the at least one bending and the at least one straight-line section of the adjacent bending line.

20 . The sensing device as claimed in claim 15 , one straight-line section of two adjacent straight-line sections having a same bending line and the first axis form a first angle, the other straight-line section of the two adjacent straight-line sections and a second axis foam a second angle, the first angle is ranged from 15° to 75°, the second angle is ranged from 75° to 15° , the second axis is a direction of said another portion of the the plurality of conductive lines to be printed, and the first axis is orthogonal to the second axis.

21 . The sensing device as claimed in claim 15 , wherein the at least one bending forms a fillet or a closed angle.

22 . The sensing device as claimed in claim 15 , wherein the at least two straight-line sections have a same length or have different lengths.

23 . The sensing device as claimed in claim 15 , wherein the at least two straight-line sections have a same width or have different widths.

24 . The sensing device as claimed in claim 14 , wherein a width of each of said another portion of the the plurality of conductive lines at the frame wire area is smaller than or equal to 50 μm.

25 . The sensing device as claimed in claim 14 , wherein there exists an angle between the substrate and an edge contour of said another portion of the the plurality of conductive lines, and the angle is substantially an acute angle.

26 . The sensing device as claimed in claim 14 , wherein each of the plurality of conductive lines has a surface average roughness ranged from 10% to 50%.

Assignees

• Ind Tech Res Inst

Inventors

• Chung Sheng-Feng
• Liu Chun-Ting
• Lu Su-Tsai

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title