Method of fabricating touch screen panel

Patent metadata

Field	Value
Publication number	US-9256326-B2
Application number	US-201113010723-A
Country	US
Kind code	B2
Filing date	Jan 20, 2011
Priority date	Sep 29, 2010
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

A fabricating method of a display device includes: forming a thin film by coating a liquid polymer material over a substrate using spin coating or slit coating; forming a touch screen panel (TSP) over the thin film; separating the substrate from the thin film; and placing the TSP over a surface of the display device. The TSP includes: first and second sensing patterns alternately arranged, the first sensing patterns formed to be connected to one another for each column, the second sensing patterns formed to be connected to one another for each row; first connection lines electrically connecting the first sensing patterns; connection patterns connecting the second sensing patterns and formed in a different layer from the first and second sensing patterns; and a first insulating layer formed between the connection patterns and the first and second sensing patterns. The sensing patterns are formed of a transparent conductive material.

First claim

What is claimed is:

1. A fabricating method of a display device including a touch screen panel, the method comprising:
coating a liquid polymer material over a substrate using at least one of spin coating and slit coating, thereby forming a thin film;
forming a touch screen panel over the thin film, wherein the touch screen panel comprises:
first and second sensing patterns alternately arranged, the first sensing patterns being formed to be connected to one another for each column having the same X coordinate, the second sensing patterns being formed to be connected to one another for each row having the same Y coordinate, wherein the first and second sensing patterns are formed of a transparent conductive material;
first connection lines that electrically connect the first sensing patterns;
connection patterns formed in a different layer from the first and second sensing patterns, the connection patterns electrically connecting the second sensing patterns; and
a first insulating layer formed between the connection patterns and the first and second sensing patterns;

separating the substrate from the thin film; and
placing the touch screen panel over a surface of the display device.

2. The method according to claim 1 , wherein the liquid polymer material comprises polyimide.

3. The method according to claim 1 , wherein a thickness of the thin film is less than about 1/10 of a thickness of the substrate.

4. The method according to claim 1 , wherein the separating of the substrate from the thin film comprises instantaneously applying heat to a bottom surface of the substrate.

5. The method according to claim 1 , wherein the separating of the carrier substrate from the thin film is comprises scanning and irradiating a laser beam to a bottom surface of the substrate.

Assignees

• Jang Brent
• Samsung Display Co Ltd

Inventors

• Jang Brent

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• Y10T29/49002

  Electrical device making · 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

• G06F2203/04103

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