Touch panel

Patent metadata

Field	Value
Publication number	US-9971430-B2
Application number	US-201514636110-A
Country	US
Kind code	B2
Filing date	Mar 2, 2015
Priority date	Mar 6, 2014
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A touch panel comprises a sensing area, a periphery area, a plurality of wires and a plurality of bonding pads. The periphery area is disposed around the sensing area. The periphery area comprises a bonding area. The wires are disposed in the periphery area. The bonding pads are disposed in the bonding area and electrical connected to the wires correspondingly. Each of the bonding pads comprises at least a bending portion.

First claim

What is claimed is:

1. A touch panel, comprising:
a sensing area;
a peripheral area disposed around the sensing area and comprising a bonding area;
a plurality of wires disposed in the peripheral area; and
a plurality of bonding pads, each having a penetrating axis penetrating the bonding pad, disposed in the bonding area, wherein:
each of the plurality of bonding pads is electrically connected to a corresponding wire of the plurality of wires, and
the penetrating axes of the bonding pads are inclined in reference to an edge line of the sensing area adjacent to the bonding area;
wherein an extension line of each of the plurality of wires and an edge line of the sensing area adjacent to the bonding area form an obtuse angle;
wherein an obtuse angle formed between the penetrating axes of the plurality of bonding pads and the edge line of the sensing area and the obtuse angle formed between the extension line of each of the plurality of wires and the edge line of the sensing area are substantially equal.

2. The touch panel of claim 1 , wherein each of the plurality of bonding pads comprises at least one bending portion.

3. The touch panel of claim 1 , wherein, for each of the plurality of bonding pads, a first part of the bonding pad is substantially symmetrical with a second part of the bonding pad.

4. The touch panel of claim 1 , further comprising:
a circuit board correspondingly attached to the plurality of bonding pads in the bonding area.

5. The touch panel of claim 1 , wherein at least one of the plurality of bonding pads comprises a curved portion.

6. The touch panel of claim 1 , wherein at least one of the plurality of the bonding pads comprises an inclined form.

7. A touch panel, comprising:
a sensing area;
a peripheral area disposed around the sensing area and comprising a bonding area;
a plurality of wires disposed in the peripheral area; and
a plurality of bonding pads, each having a penetrating axis penetrating the bonding pad, disposed in the bonding area, wherein:
each of the plurality of bonding pads is electrically connected to a corresponding wire of the plurality of wires, and
the penetrating axes of the bonding pads are inclined in reference to an edge line of the sensing area adjacent to the bonding area;
wherein an extension line of each of the plurality of wires and an edge line of the sensing area adjacent to the bonding area form an obtuse angle;
wherein an obtuse angle formed between the penetrating axes of the plurality of bonding pads and the edge line of the sensing area is different from the obtuse angle formed between the extension line of each of the plurality of wires and the edge line of the sensing area.

8. The touch panel of claim 7 , wherein each of the plurality of bonding pads comprises at least one bending portion.

9. The touch panel of claim 7 , wherein, for each of the plurality of bonding pads, a first part of the bonding pad is substantially symmetrical with a second part of the bonding pad.

10. The touch panel of claim 7 , further comprising:
a circuit board correspondingly attached to the plurality of bonding pads in the bonding area.

11. The touch panel of claim 7 , wherein at least one of the plurality of bonding pads comprises a curved portion.

12. The touch panel of claim 7 , wherein at least one of the plurality of the bonding pads comprises an inclined form.

Assignees

• Tpk Touch Systems Xiamen Inc
• Tpk Touch Solutions Xiamen Inc
• Tpk Touch Systems Xiamen Inc
• Tpk Touch Solutions Xiamen Inc

Inventors

• Chang Pu-Hsin
• Li Jui-Hsing
• Chen Fucheng
• Lin Manyi
• Hong Pudi
• Wei Tsai-Kuai
• Bai Xiaoxin
• Ye Caijin
• Wu Defa

Classifications

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F2203/04113

  Peripheral electrode pattern in resistive digitisers, i.e. electrodes at the periphery of the resistive sheet are shaped in patterns enhancing linearity of induced field · CPC title

• G06F2203/04103

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

• G06F3/04164 Primary

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