Touch panel

• US 10,013,100 B2
• Filed: 09/08/2015
• Issued: 07/03/2018
• Est. Priority Date: 04/14/2015
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Jee Hoon
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): ZUBAJLO, JENNIFER L
• Application Number:
  US14/847,657
• Publication Number:
  US 20160306486A1
• Time in Patent Office: 1,029 Days
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04112 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 Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• 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
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

A touch panel including a substrate a first signal line positioned on the substrate and extending in a first direction while being bent in a second direction several times and a second signal line positioned on the substrate and extending in the second direction while being bent in the first direction intersecting the first direction several times to intersect the first signal line.

Claims

1. A touch panel, comprising:

a substrate;

a first signal line positioned on the substrate and extending in a first direction while being bent in a second direction several times; and

a second signal line positioned on the substrate and extending in the second direction while being bent in the first direction intersecting the first direction several times to intersect the first signal line,

wherein the first signal line comprises;

first touch pad parts each spaced apart from each other in the second direction and extending in the first direction while each being bent in the second direction; and

a first connection part directly connecting adjacent first touch pad parts, and wherein the second signal line comprises;

second touch pad parts each spaced apart from each other in the first direction and extending in the second direction while each being bent in the first direction; and

a second connection part directly connecting adjacent second touch pad parts and intersecting the first connection part while being insulated from the first connection part,

wherein each of the first touch pad parts and the second touch pad parts are L-shaped, and

wherein each of the first touch pad parts and the second touch pad parts have substantially the same planar area size.

2. The touch panel of claim 1, wherein the first connection part generally extends in the second direction connecting adjacent first touch pad parts extending in the first direction and the second connection part generally extends in the first direction connecting adjacent second touch pad parts extending in the second direction.

3. The touch panel of claim 2, wherein any one of the first touch pad part and the second touch pad part encloses a portion of the other.

4. The touch panel of claim 3, wherein:

at least one of the first touch pad part and the second touch pad part comprises protrusions that protrude toward at least one of the first touch pad part and the second touch pad part, and

at least one of the first touch pad part and the second touch pad part comprises depressions such that the protrusions of the at least one of the first touch pad part and the second touch pad part are positioned within the depressions.

5. The touch panel of claim 4, wherein the protrusions are positioned while being spaced apart from each other along an edge of at least one of the first touch pad part and the second touch pad part.

6. The touch panel of claim 1, wherein each of the first touch pad part and the second touch pad part comprises a metal mesh.

7. The touch panel of claim 6, wherein the substrate is flexible.

8. The touch panel of claim 1, wherein each of the first touch pad part and the second touch pad part comprises a transparent conductive material.

9. The touch panel of claim 8, wherein each of the first touch pad part and the second touch pad part has a plate shape.

10. The touch panel of claim 1, wherein each of the first touch pad part and the second touch pad part is positioned on the same layer on the substrate.

11. The touch panel of claim 1, wherein each of the first touch pad part and the second touch pad part is positioned on different layers on the substrate.