Touch panel and applicable touch sensitive processing method and apparatus and touch system

Patent metadata

Field	Value
Publication number	US-12366944-B2
Application number	US-202318376529-A
Country	US
Kind code	B2
Filing date	Oct 4, 2023
Priority date	Dec 28, 2022
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

A touch panel sequentially comprising: a first electrode layer, which comprises multiple first electrodes in parallel to a first axis; an elastic dielectric layer; and a second structure, which further comprises: multiple second circuits in parallel to the first axis; multiple third circuits in parallel to a second axis; multiple second electrodes; and multiple switch circuits, wherein that each of the switch circuits is coupled to one of the second electrodes and one of the second circuits, wherein that each of the switch circuits is configured to be selectively closed or opened according to signals transmitted from one of the third circuits, wherein each of the first electrodes covers on top of one of the second circuits and the switch circuits and the second electrodes which are coupled to the one of the second circuits.

First claim

What is claimed is:

1. A touch panel, sequentially comprising:
a first electrode layer, which comprises multiple first electrodes in parallel to a first axis;
an elastic dielectric layer; and
a second structure, which further comprises:
multiple second circuits in parallel to the first axis;
multiple third circuits in parallel to a second axis;
multiple second electrodes; and
multiple switch circuits,

wherein that each of the switch circuits is coupled to one of the second electrodes and one of the second circuits,
wherein that each of the switch circuits is configured to be selectively closed or opened according to signals transmitted from one of the third circuits,
wherein each of the first electrodes covers on top of one of the second circuits and the switch circuits and the second electrodes which are coupled to the one of the second circuits;
wherein the second structure comprises a second electrode layer,
wherein the second electrodes and the second circuits are arranged on a first surface of the second electrode layer,
wherein the third circuits and the switch circuits are arranged on a second surface of the second electrode layer,
wherein the first surface is opposite to the second surface, the first surface is closer to the first electrode layer than the second surface.

2. The touch panel of claim 1 , wherein the first electrode layer, the dielectric layer, and the second structure are all flexible.

3. The touch panel of claim 1 ,
wherein the second structure sequentially comprises the second electrode layer and a third electrode layer,
wherein the second electrode layer further comprises the second circuits and the second electrodes,
wherein the third electrode layer further comprises the third circuits and the switch circuits,
wherein the second electrode layer is closer to the first electrode layer than the third electrode layer.

4. A touch sensitive processing method, performed on the touch panel of claim 1 , comprising:
performing multiple pressure value array sensing steps corresponding to each of the third circuits, wherein each pressure value array sensing step further comprises:
controlling the switch circuits coupled to the corresponding third circuit being closed and controlling the switch circuits which are not coupled to the corresponding third circuit being opened;
providing driving signals to at least a part of the first electrodes; and
sensing the induced driving signals via the second circuits which are covered by the first electrodes which are being provided with the driving signals, respectively, to get a pressure value array;

composing a pressure value image by all the pressure value arrays according to positions of the third circuits corresponding to the pressure value arrays; and
calculating one or more points of pressure according to the pressure value image.

5. The touch sensitive processing method of claim 4 , further comprising:
calculating a pressure value corresponding to each of the points of pressure according to the pressure value image.

6. The touch sensitive processing method of claim 4 , wherein any given two of the first electrodes being provided with the driving signals are not adjacent to each other.

7. The touch sensitive processing method of claim 4 , wherein the first electrodes being provided with the driving signals are all the first electrodes.

8. The touch sensitive processing method of claim 4 ,
wherein the pressure value array sensing step further comprises:
sensing electrical signals via the second circuits, respectively, to get an electrical signal value array,

wherein the electrical signals and the driving signals have different frequencies,
wherein the touch sensitive processing method further comprises:
composing an electrical signal value image based on all the electrical signal value arrays according to positions of the third circuits corresponding to the electrical signal value arrays; and
calculating one or more positions of transmitters according to the electrical signal value image.

9. A touch sensitive processing method, performed on the touch panel of claim 1 , comprising:
performing multiple approaching or touching value array sensing steps corresponding to each of the third circuits, wherein each pressure value array sensing step further comprises:
controlling the switch circuits coupled to the corresponding third circuit being closed and controlling the switch circuits which are not coupled to the corresponding third circuit being opened;
providing driving signals to at least a part of the first electrodes; and
sensing the induced driving signals via the second circuits which are covered by the first electrodes which are not being provided with the driving signals, respectively, to get an interlace approaching or touching value array;
composing an interlace approaching or touching value image by all the interlace approaching or touching value arrays according to positions of the third circuits corresponding to the interlace approaching or touching value arrays; and
calculating one or more points of approaching or touching according to the interlace approaching or touching value image.

10. The touch sensitive processing method of claim 9 , further comprising calculating a pressure value corresponding to each of the points of approaching or touching according to the interlace approaching or touching value image.

11. The touch sensitive processing method of claim 9 , wherein any given two of the first electrodes being provided with the driving signals are not adjacent to each other.

12. The touch sensitive processing method of claim 9 ,
wherein the approaching or touching value array sensing step further comprises:
sensing electrical signals via the second circuits, respectively, to get an electrical signal value array, wherein the electrical signals and the driving signals have different frequencies,

wherein the touch sensitive processing method further comprises:
composing an electrical signal value image based on all the electrical signal value arrays according to positions of the third circuits corresponding to the electrical signal value arrays; and
calculating one or more positions of transmitters according to the electrical signal value image.

13. A touch sensitive processing method, performed on the touch panel of claim 1 , comprising:
performing multiple sensing steps corresponding to each of the third circuits, wherein each sensing step further comprises:
controlling the switch circuits coupled to the corresponding third circuit being closed and controlling the switch circuits which are not coupled to the corresponding third circuit being opened; providing driving signals to at least a part of the first electrodes;
sensing the induced driving signals via the second circuits which are covered by the first electrodes which are being provided with the driving signals, respectively, to get an interlace pressure value array; and
sensing the induced driving signals via the second circuits which are covered by the first electrodes which are not being provided with the driving signals, respectively, to get an interlace approaching or touching value array;

composing an interlace pressure value image by all the interlace pressure value arrays according to positions of the third circuits corresponding to the interlace pressure value arrays;
composing an interlace approaching or touching value image by all the interlace approaching or touching value arrays according to positions of the third circuits corresponding to the interlace approaching or touching value arrays;
calculating one or more points of pressure ac

Assignees

• Egalax_Empia Tech Inc

Inventors

• Ho Shun-Lung

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G06F2203/04105

  Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title

• G06F3/0414

  using force sensing means to determine a position · CPC title