Touch input device and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-11294520-B2
Application number	US-202016849687-A
Country	US
Kind code	B2
Filing date	Apr 15, 2020
Priority date	Sep 23, 2016
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A touch input device comprises a body having a plurality of hole portions; and a signal transfer unit formed in the body, wherein the signal transfer unit is provided to pass on the body between the hole portions adjacent thereto to recognize a user's touch signal.

First claim

What is claimed is:

1. A manufacturing method of a touch input device comprising steps of:
preparing a base including a metal complex on a body in which a plurality of hole portions are formed;
forming a pattern groove to pass between the hole portions adjacent thereto by irradiating laser beams to one surface of the base;
forming a detection pattern by a plating process or a deposition process on the pattern groove; and
determining whether the detection pattern can be used as a sensor or not by detecting a change in capacitance by providing a current to the detection pattern.

2. The manufacturing method of claim 1 ,
wherein the step of preparing the base comprises preparing a first base and a second base laminated on the first base,
wherein the step of forming the pattern comprises: forming a first pattern groove by irradiating laser beams to one surface of the first base; and forming a second pattern groove by irradiating laser beams to one surface of the second base, and
wherein the step of forming the detection pattern comprises: plating or depositing the first pattern groove with a first detection pattern; and plating or depositing the second pattern groove with a second detection pattern.

3. The manufacturing method of claim 1 ,
wherein the step of forming the pattern groove comprises: forming a first pattern groove by irradiating laser beams to one surface of the base; and forming a second pattern groove by irradiating laser beams to a rear surface of the base, and
wherein the step of forming the detection pattern comprises: plating or depositing the first pattern groove with a first detection pattern; and plating or depositing the second pattern groove with a second detection pattern.

4. The manufacturing method of claim 1 ,
wherein the step of forming the pattern groove comprises forming a first pattern groove and a second pattern groove by irradiating laser beams to one surface of the base, and
wherein the step of forming the detection pattern comprises: plating or depositing the first pattern groove with a first detection pattern; and plating or depositing the second pattern groove with a second detection pattern apart from the first detection pattern.

5. The manufacturing method of claim 1 , further comprising:
modeling a shape of the body including the plurality of hole portions;
modeling the detection pattern such that the detection pattern passes between the hole portions adjacent thereto; and
detailed designing the detection pattern in consideration with a width and a thickness of the detection pattern and the number of lines of the detection pattern.

6. The manufacturing method of claim 5 ,
wherein a three dimensional (3D) modeling of the body is performed,
wherein the body comprises a curved surface, including a concave surface or a convex surface, in which the plurality of hole portions are formed, and
wherein a 3D modeling of the detection pattern is performed such that the detection pattern passes between the hole portions adjacent thereto.

7. The manufacturing method of claim 1 ,
wherein a 3D modeling of a mesh region of the body including the plurality of hole portions is performed and the 3D modeling of the detection pattern is performed according to a shape of the mesh region,
and wherein the modeling the detection pattern comprises: modeling a thickness of the detection pattern according to a distance between the plurality of hole portions; and modeling the number of lines of the detection pattern according to an area of the mesh region and a required touch resolution.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Seok Donghee
• Kwon Gideok
• Lee Jong Bok
• Ro Heejin

Classifications

• G06F3/0445 Primary

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0446

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · 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