Capacitive touch screen and single layer wiring electrode array

• US 10,222,919 B2
• Filed: 05/18/2017
• Issued: 03/05/2019
• Est. Priority Date: 07/20/2012
• Status: Active Grant

• Current Assignee: Silead Inc (Galaxycore Incorporated)
• Original Assignee: Silead Inc (Galaxycore Incorporated)
• Inventors: Cheng, Taiyi, Zhao, Tianming, Tang, Hao
• Primary Examiner(s): Eisen, Alexander
• Assistant Examiner(s): Almeida, Cory A
• Application Number:
  US15/598,648
• Publication Number:
  US 20170308205A1
• Time in Patent Office: 656 Days
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 3/0443 using a single layer of sensing 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

Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.

Claims

1. An apparatus for use in a touch sensing device, comprising:

a conductive layer having capacitive regions and wiring regions located on one plane and arranged in an alternating manner;

at least one capacitor cell in each of the capacitive regions; and

at least one wire in each of the wiring regions,

wherein;

each of the capacitor cells includes a driving electrode and a sensing electrode adjacent to the driving electrode;

each of the driving and sensing electrodes has at least two sides that are zigzag-shaped or wave-shaped;

the wires are curved;

at least one of the driving and sensing electrodes includes a hole within the one of the driving and sensing electrodes; and

one of the capacitor cells includes a first plurality of driving electrodes and a second plurality of sensing electrodes.

2. The apparatus of claim 1, wherein one of the capacitor cells includes a driving electrode having a hole and a sensing electrode having a hole.

3. The apparatus of claim 1, wherein the hole has at least two edges that are zigzag-shaped or wave-shaped.

4. The apparatus of claim 1, wherein two edges of the hole are parallel to two sides of the at least one of the driving and sensing electrodes.

5. The apparatus of claim 1, wherein:

a first side of the driving electrode is zigzag-shaped or wave-shaped;

a second side of the sensing electrode is zigzag-shaped or wave-shaped; and

the first and second sides are parallel to each other.

6. The apparatus of claim 1, wherein:

the first plurality fits into grooves formed by the second plurality;

the second plurality fits into grooves formed by the first plurality; and

each of the first and second pluralities includes a hole within the respective electrode.

7. The apparatus of claim 1, wherein one of the wiring regions includes a separation wire that is not connected to any electrode for driving or sensing.

8. The apparatus of claim 7, wherein the one of the wiring regions further includes second wires connected to multiple driving electrodes in parallel and a first wire that connects multiple sensing electrodes in series, wherein the separation wire is located between the first wire and the second wires.

9. An apparatus for use in a touch sensing device, comprising:

a conductive layer having capacitive regions and wiring regions arranged in an alternating manner;

at least one capacitor cell in each of the capacitive regions; and

at least one wire in each of the wiring regions, wherein;

each of the capacitor cells includes a driving electrode and a sensing electrode adjacent to the driving electrode;

each of the driving and sensing electrodes has at least two sides that are zigzag-shaped or wave-shaped;

the wires are curved; and

one of the capacitor cells includes a first plurality of driving electrodes and a second plurality of sensing electrodes.

10. The apparatus of claim 9, wherein the first plurality fits into grooves formed by the second plurality and the second plurality fits into grooves formed by the first plurality.

11. The apparatus of claim 9, wherein each of the first and second pluralities includes a hole within the respective electrode.

12. The apparatus of claim 11, wherein the hole has at least two edges that are zigzag-shaped or wave-shaped.

13. The apparatus of claim 9, wherein one of the wiring regions includes a first wire connected to a sensing electrode of the one of the capacitor cells and a second wire connected to a driving electrode of another one of the capacitor cells.

14. The apparatus of claim 13, wherein the one of the wiring regions further includes a third wire between the first wire and the second wire.

15. A capacitive touch screen, comprising:

a substrate; and

a single layer wiring electrode array disposed over the substrate,

wherein the single layer wiring electrode array includes capacitive regions and wiring regions arranged in an alternating manner, and further includes at least one capacitor cell in each of the capacitive regions and at least one wire in each of the wiring regions,

wherein each of the capacitor cells includes a driving electrode and a sensing electrode adjacent to the driving electrode, and each of the driving and sensing electrodes has at least two sides that are zigzag-shaped or wave-shaped, and the wires are curved,

wherein one of the wiring regions includes a first wire connected to a sensing electrode and a second wire connected to a driving electrode.

16. The capacitive touch screen of claim 15, further comprising:

control ports for connecting to at least one integrated circuit (IC), wherein the first and second wires are connected to two of the control ports, respectively.

17. The capacitive touch screen of claim 16, wherein the two of the control ports are located on opposite sides of the single layer wiring electrode array.

18. The capacitive touch screen of claim 16, wherein the two of the control ports are located on a same side of the single layer wiring electrode array.

19. The capacitive touch screen of claim 16, wherein the one of the wiring regions further includes a third wire between the first wire and the second wire.

20. The capacitive touch screen of claim 15, wherein one of the capacitor cells includes a driving electrode having a hole inside the driving electrode and a sensing electrode having a hole inside the sensing electrode.