TOUCH INPUT DEVICE AND METHOD FOR MANUFACTURING THE SAME

• US 20170075473A1
• Filed: 09/07/2016
• Published: 03/16/2017
• Est. Priority Date: 09/15/2015
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Kwon, Gideok, Lee, Jong Bok
• Application Number:
  US15/258,670
• Publication Number:
  US 20170075473A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B29C 59/16 by wave energy or particle radiation , e.g. infrared heating B29C59/007 takes precedence
• CPC Class Codes: B29L 2031/34 Electrical apparatus, e.g. sparking plugs or parts thereof
• CPC Class Codes: C23C 18/1603 coating on selected surface areas
• CPC Class Codes: C23C 18/1637 metallic substrate
• CPC Class Codes: C23C 18/1639 Substrates other than metallic, e.g. inorganic or organic or non-conductive
• CPC Class Codes: C23C 18/38 Coating with copper
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 2203/04111 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 Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A touch input device in which an electrode is installed using laser processing and a method for manufacturing the same are disclosed. The touch input device includes: a base including a metal compound; a first pattern groove and a second pattern groove formed over one surface of the base; a first sense pattern formed over the first pattern groove and including a conductive material; a second sense pattern formed over the second pattern groove, including a conductive material, and spaced apart from the first sense pattern; and a line unit connecting the first sense pattern and the second sense pattern to an integrated-circuit.

Claims

1. A touch input apparatus comprising:

a base including a metal compound;

a first pattern groove and a second pattern groove formed over one surface of the base;

a first sense pattern formed over the first pattern groove and including a conductive material;

a second sense pattern formed over the second pattern groove, including a conductive material, and spaced apart from the first sense pattern; and

a line unit connecting the first sense pattern and the second sense pattern to an integrated-circuit.

2. The touch input apparatus according to claim 1, wherein:

the first sense pattern and the second pattern are configured in a shape of a plurality of columns,

wherein a single first sense pattern column and a single second sense pattern column adjacent to the single first sense pattern form a single channel; and

a ground line is disposed between the channels adjacent to each other.

3. The touch input apparatus according to claim 2, wherein:

the ground line is provided in a ground pattern groove formed over one surface of the base, includes a conductive material, and blocks noise generated between the adjacent channels.

4. The touch input apparatus according to claim 1, wherein the base includes:

a resin including at least one of;

Polycarbonate (PC), Polyamide (PA), and acrylonitrile-butadiene-styrene copolymer (ABS); and

a metal oxide including at least one of;

magnesium (Mg), chrome (Cr), copper (Cu), barium (Ba), iron (Fe), titanium (Ti), and aluminum (Al).

5. The touch input apparatus according to claim 4, wherein the base is coated over a surface formed of resin, glass, rubber, or leather.

6. The touch input apparatus according to claim 1, wherein:

some parts of a lower part of the first sense pattern are accommodated in the first pattern groove, and some parts of an upper part of the first sense pattern protrude from one surface of the base; and

some parts of a lower part of the second sense pattern are accommodated in the second pattern groove, and some parts of an upper part of the second sense pattern protrude from one surface of the base.

7. The touch input apparatus according to claim 6, wherein:

a half of the first sense pattern is accommodated in the first pattern groove, and the remaining half of the first sense pattern protrudes from one surface of the first base; and

a half of the second sense pattern is accommodated in the second pattern groove, and the remaining half of the second sense pattern protrudes from one surface of the second base.

8. The touch input apparatus according to claim 1, wherein:

each of the first sense pattern and the second sense pattern is integrated with the line unit.

9. The touch input apparatus according to claim 3, wherein:

some parts of a lower part of the ground line are accommodated in the ground pattern groove, and some parts of an upper part of the ground line protrude from one surface of the base.

10. The touch input apparatus according to claim 1, further comprising:

a controller configured to interpret an input touch signal upon receiving a signal regarding capacitance of the first sense pattern and the second sense pattern.

11. A touch input apparatus comprising:

a first base, a top surface of which is used as a touch surface to which a touch signal is input, and configured to include a metal compound;

a first pattern groove and a second pattern groove formed over one surface of the base;

a first sense pattern formed in the first pattern groove, and configured to include a conductive material; and

a second sense pattern formed in the second pattern groove, including a conductive material, and spaced apart from the first sense pattern.

12. A touch input apparatus comprising:

a basic material, a top surface of which is used as a touch surface to which a user'"'"'s touch signal is input;

a first base stacked over a bottom surface of the basic material, and configured to include a metal compound;

a first pattern groove and a second pattern groove formed over one surface of the base;

a first sense pattern formed in the first pattern groove, and configured to include a conductive material;

a second sense pattern formed in the second pattern groove, including a conductive material, and spaced apart from the first sense pattern.

13. A method for manufacturing a touch input apparatus, comprising:

providing a base including a metal compound;

forming a first pattern groove and a second pattern groove by irradiating laser light to one surface of the first base;

forming a first sense pattern in the first pattern groove through a plating or deposition process;

forming a second sense pattern spaced apart from the first sense pattern in the second pattern groove through a plating or deposition process; and

providing a current to the first and second sense patterns, determining a change of capacitance between the two sense patterns, and determining whether the two sense patterns are used as a sensor on the basis of the determined change of capacitance.

14. The method according to claim 13, further comprising:

determining a change of mutual capacitance between the first and second sense patterns, and determining whether the first and second sense patterns are capable of being used as a sensor according to the determined change of mutual capacitance.

15. The method according to claim 13, wherein:

the first sense pattern and the second sense pattern are simultaneously formed by a Laser Directing Structuring (LDS) method.

16. The method according to claim 13, further comprising:

forming a ground pattern groove by irradiating laser light to one surface of the base; and

forming a ground line in the ground pattern groove through a plating or deposition process.

17. The method according to claim 16, wherein:

the first sense pattern, the second sense pattern, and the ground line are simultaneously formed by a Laser Directing Structuring (LDS) method.