Metal mesh type touch screen panel

Patent metadata

Field	Value
Publication number	US-9519174-B2
Application number	US-201314049569-A
Country	US
Kind code	B2
Filing date	Oct 9, 2013
Priority date	Oct 23, 2012
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

A touch screen panel includes a plurality of first touch electrode serials arranged in a first direction, a plurality of second touch electrode serials arranged in a second direction crossing the first direction, and an insulating layer insulating the first touch electrode serials and the second touch electrode serials. Each first touch electrode serial includes a plurality of first mesh patterns formed by an intersection of first metal lines. Each second touch electrode serial includes a plurality of second mesh patterns formed by an intersection of second metal lines. The first mesh patterns are connected to one another, and the second mesh patterns are separated from one another. The separated first mesh patterns are connected to one another through a bridge.

First claim

What is claimed is:

1. A touch screen panel, comprising:
a plurality of first touch electrode serials arranged in a first direction;
a plurality of second touch electrode serials arranged in a second direction crossing the first direction to cross the plurality of first touch electrode serials; and
an insulating layer configured to insulate the plurality of first touch electrode serials and the plurality of second touch electrode serials,
wherein each of the plurality of first touch electrode serials includes a plurality of first mesh patterns formed by an intersection of first metal lines,
wherein each of the plurality of second touch electrode serials includes a plurality of second mesh patterns formed by an intersection of second metal lines,
wherein the plurality of first mesh patterns are connected to one another, and the plurality of second mesh patterns are separated from one another,
wherein the separated second mesh patterns are connected to one another through a bridge,
wherein the bridge includes at least one first bridge metal line and at least one second bridge metal line,
wherein the at least one first bridge metal line and the at least one second bridge metal line cross each other and form the same mesh pattern as the first mesh pattern or the second mesh pattern, and
wherein ends protrude from a crossing between the at least one first bridge metal line and the at least one second bridge metal line.

2. The touch screen panel of claim 1 , wherein the insulating layer is formed at crossings of the first touch electrode serials and the second touch electrode serials,
wherein the bridge is formed on the insulating layer and connects the separated mesh patterns.

3. The touch screen panel of claim 1 , wherein the insulating layer is formed at crossings of the first touch electrode serials and the second touch electrode serials,
wherein the bridge is formed under the insulating layer and connects the separated mesh patterns.

4. The touch screen panel of claim 1 ,
wherein both ends of the at least one first bridge metal line connect the separated mesh patterns.

5. The touch screen panel of claim 1 ,
wherein the ends that protrude from the crossing between the at least one first bridge metal line and the at least one second bridge metal line have another ends protruding from the ends.

6. The touch screen panel of claim 1 , wherein each of the first and second metal lines has a width of about 2 μm to 15 μm.

7. The touch screen panel of claim 1 , wherein a distance between the first metal lines and a distance between the second metal lines are about 50 μm to 500 μm.

8. The touch screen panel of claim 1 , wherein a distance between the separated mesh patterns is about 5 μm to 200 μm.

9. The touch screen panel of claim 1 , wherein the first and second metal lines are selected among metal materials such as Al, AlNd, Mo, MoTi, Cu, Cr, Ag, and Ag-based alloys.

10. The touch screen panel of claim 1 , wherein the ends that protrude from the crossing between the at least one first bridge metal line and the at least one second bridge metal line have an I-shape.

11. A touch screen panel, comprising:
a plurality of first touch electrode serials arranged in a first direction;
a plurality of second touch electrode serials arranged in a second direction crossing the first direction to cross the plurality of first touch electrode serials; and
an insulating layer configured to insulate the plurality of first touch electrode serials and the plurality of second touch electrode serials,
wherein each of the plurality of first touch electrode serials includes a plurality of first mesh patterns formed by an intersection of first metal lines,
wherein each of the plurality of second touch electrode serials includes a plurality of second mesh patterns formed by an intersection of second metal lines,
wherein the plurality of first mesh patterns are connected to one another, and the plurality of second mesh patterns are separated from one another,
wherein the separated second mesh patterns are connected to one another through a bridge,
wherein the bridge includes at least one first bridge metal line having at least one curved portion,
wherein both ends of the at least one first bridge metal line connect the separated mesh patterns,
wherein the bridge further includes at least one second bridge metal line having at least one curved portion,
wherein the at least one first bridge metal line and the at least one second bridge metal line cross each other and form the same mesh pattern as the first mesh pattern or the second mesh pattern, and
wherein ends protrude from a crossing between the at least one first bridge metal line and the at least one second bridge metal line.

12. The touch screen panel of claim 11 , wherein the ends that protrude from the crossing between the at least one first bridge metal line and the at least one second bridge metal line have an I-shape.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Dongsup
• Kang Byungkoo
• Lee Sohyung
• Cho Sungyong

Classifications

• 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

• 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

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title