Touch sensor and touch display apparatus and driving method thereof

• US 9,069,421 B2
• Filed: 01/19/2012
• Issued: 06/30/2015
• Est. Priority Date: 12/16/2010
• Status: Active Grant

• Current Assignee: Hung-Ta Liu
• Original Assignee: Hung-Ta Liu
• Inventors: Liu, Hung-Ta
• Primary Examiner(s): Bolotin, Dmitriy
• Application Number:
  US13/354,147
• Publication Number:
  US 20120154327A1
• Time in Patent Office: 1,258 Days
• Field of Search: 345/173, 345/174, 178/18.06, 178/18.07
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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 3/046 by electromagnetic means
• CPC Class Codes: H01L 27/14609 Pixel-elements with integrated switching, control, storage or amplification elements scanning details of imagers (circuitry of solid-state image sensors H04N25/00); circuitry of imagers H04N25/70

Abstract

The present invention provides a dual-mode touch sensing apparatus. The apparatus includes a sensor; a plurality of first conductive line, a first direction selection line, and a first direction transmission line arranged in parallel to each other and in a first direction, wherein the first direction selection line corresponds to the first direction transmission line; and a plurality of second conductive line, a second direction selection line, and a second direction transmission line arranged in parallel to each other and in a second direction, wherein the second conductive lines, the second direction selection line and the second direction transmission line cross the first conductive lines, the first direction selection line and the first direction transmission line.

Claims

1. A dual-mode touch sensing apparatus, comprising:

a sensor;

a plurality of first conductive line, a first direction selection line, and a first direction transmission line arranged in parallel to each other and in a first direction, wherein the first direction selection line corresponds to the first direction transmission line; and

a plurality of second conductive line, a second direction selection line, and a second direction transmission line arranged in parallel to each other and in a second direction, wherein the second conductive lines cross the first conductive lines, the first direction selection line and the first direction transmission line, and the first conductive lines cross the second conductive lines, the second direction selection line, and the second direction transmission line;

wherein the sensor transfers a control signal to the first direction selection line to switch the connection between the second conductive lines and the first direction transmission line, and transfers a control signal to the second direction selection line to switch the connection between the first conductive lines and the second direction transmission line.

2. The dual-mode touch sensing apparatus of claim 1, wherein the first direction selection line further includes a first direction first selection line, a first direction second selection line and a first direction third selection line,

the first direction transmission line further includes a first direction first transmission line, a first direction second transmission line and a first direction third transmission line,

the second direction selection line further includes a second direction first selection line, a second direction second selection line and a second direction third selection line,

the second direction transmission line further includes a second direction first transmission line, a second direction second transmission line and a second direction third transmission line.

3. The dual-mode touch sensing apparatus of claim 2, wherein when the dual-mode touch sensing apparatus performs an electromagnetic touch sensing technology,

the sensor transfers a first control signal to the first direction first selection line to make the second conductive lines connect with the first direction first transmission line together,

the sensor transfers a second control signal to the first direction second selection line to make the second conductive lines sequentially connect with the first direction second transmission line,

the sensor transfers a third control signal to the first direction third selection line to make the second conductive lines sequentially connect with the first direction third transmission line, wherein the third control signal is behind the second control signal,

the sensor transfers a fourth control signal to the second direction first selection line to make the first conductive lines connect with the second direction first transmission line together,

the sensor transfers a fifth control signal to the second direction second selection line to make the first conductive lines sequentially connect with the second direction second transmission line,

the sensor transfers a sixth control signal to the second direction third selection line to make the first conductive lines connect with the second direction third transmission line, wherein the sixth control signal is behind the fifth control signal, and

the sensor performs a first sensing method to sense the magnetic flux, electromagnetic induction, current or frequency of loops to determine a touch position.

4. The dual-mode touch sensing apparatus of claim 3, wherein the second control signal and the third control signal are first square wave signals, and the fifth control signal and the sixth control signal are second square wave signals.

5. The dual-mode touch sensing apparatus of claim 4, further comprising a plurality of switches located in the positions of the second conductive lines crossing the first direction first selection line, the first direction second selection line and the first direction third selection line, and located in the positions of the first conductive lines crossing the second direction first selection line, the second direction second selection line and the second direction third selection line.

6. The dual-mode touch sensing apparatus of claim 4, further comprising to form a loop in the second direction, comprising:

the first control signal turns on the switches located in the positions of the second conductive lines crossing the first direction first selection line to make the second conductive lines to connect with the first direction first transmission line together,

the second control signal turns on at least one of the switches located in the positions of the second conductive lines crossing the first direction second selection line to make the at least one of the second conductive lines to connect with the first direction second transmission line,

the third control signal turns on at least one of the switches located in the positions of the second conductive lines crossing the first direction third selection line to make at least one of the second conductive lines to connect with the first direction third transmission line, and

to form a loop in the first direction, comprising;

the fourth control signal turns on the switches located in the positions of the first conductive lines crossing the second direction first selection line to make the first conductive lines to connect with the second direction first transmission line together,

the fifth control signal turns on at least one of the switches located in the positions of the first conductive lines crossing the second direction second selection line to make the at least one of the first conductive lines to connect with the second direction second transmission line,

the sixth control signal turns on at least one of the switches located in the positions of the first conductive lines crossing the second direction third selection line to make at least one of the first conductive lines to connect with the second direction third transmission line,

the sensor performs the first sensing method to sense the magnetic flux, electromagnetic induction, current or frequency of loops to determine a touch position.

7. The dual-mode touch sensing apparatus of claim 6, wherein the first sensing method is to transfer a sensing signal with a special frequency to the sensing loops to sense the magnetic flux, electromagnetic induction, current or frequency of the sensing loops, wherein the sensor determine whether or not the magnetic flux, electromagnetic induction, current or frequency of the sensing loops are changed.

8. The dual-mode touch sensing apparatus of claim 2, wherein when the dual-mode touch sensing apparatus performs an capacitive touch sensing technology,

the sensor transfers a first control signal to the first direction first selection line to disconnect the second conductive lines with the first direction first transmission line,

the sensor transfers a second control signal to the first direction second selection line to make the second conductive lines sequentially connect with the first direction second transmission line,

the sensor transfers a third control signal to the first direction third selection line to disconnect the second conductive lines with the first direction third transmission line,

the sensor transfers a fourth control signal to the second direction first selection line to disconnect the first conductive lines with the second direction first transmission line together,

the sensor transfers a fifth control signal to the second direction second selection line to make the first conductive lines sequentially connect with the second direction second transmission line,

the sensor transfers a sixth control signal to the second direction third selection line to disconnect the first conductive lines with the second direction third transmission line, and

the sensor performs a second sensing method to sense the change of the capacitance, current or voltage of the first conductive lines and the second conductive lines to determine a touch position.

9. The dual-mode touch sensing apparatus of claim 8, wherein the second sensing method is the sensor transfers a sensing signal through the first direction second transmission line to the second conductive lines, and transfers a sensing signal through the second direction second transmission line to the first conductive lines to sense the change of the capacitance, current or voltage of the first conductive lines and the second conductive lines to determine a touch position.

10. The dual-mode touch sensing apparatus of claim 1, wherein the first direction selection line further includes a first direction first selection line, the first direction transmission line includes a first direction first transmission line, the second direction selection line further includes a second direction first selection line, and the second direction transmission line further includes a second direction first transmission line.

11. The dual-mode touch sensing apparatus of claim 10, wherein when the dual-mode touch sensing apparatus performs an capacitive touch sensing technology,

the sensor transfers a control signal to the first direction first selection line to make the second conductive lines connect with the first direction first transmission line sequentially, and

the sensor transfers a control signal to the second direction first selection line to make the first conductive lines sequentially connect with the second direction first transmission line sequentially,

the sensor performs a sensing method to sense the magnetic flux, electromagnetic induction, current or frequency of loops to determine a touch position.

12. The dual-mode touch sensing apparatus of claim 11, wherein the sensing method is the sensor transfers a exciting signal through the first direction first transmission line to the second conductive lines, and sequentially detects each of the first conductive lines through the second direction first transmission line to sense the change of the capacitance, current or voltage of the first conductive lines and the second conductive lines to determine a touch position.

13. The dual-mode touch sensing apparatus of claim 1, wherein the first conductive lines and the second conductive lines includes the data lines, the scan lines, the power lines, the Bias lines, the common electrode lines, the reading lines and the control lines of a display.

14. The dual-mode touch sensing apparatus of claim 1, wherein the sensor is integrated into a gate driver of a display or integrated into a source driver of a display.

15. The dual-mode touch sensing apparatus of claim 14, wherein the display is an Organic Light Emitting Display, a thin film transistor liquid crystal display, an Electrode Wetting display or an electrophoretic display.

16. An image gathering apparatus, comprising:

an array for gathering images, wherein the array is a CCD array, a CMOS array, an X-ray sensing array or an optical device array; and

a dual-mode touch sensing apparatus coupling with the array, further comprising;

a sensor;

a plurality of first conductive line, a first direction selection line, and a first direction transmission line arranged in parallel to each other and in a first direction, wherein the first direction selection line corresponds to the first direction transmission line; and

a plurality of second conductive line, a second direction selection line, and a second direction transmission line arranged in parallel to each other and in a second direction, wherein the second conductive lines cross the first conductive lines, the first direction selection line and the first direction transmission line, and the first conductive lines cross the second conductive lines, the second direction selection line, and the second direction transmission line;

wherein the sensor transfers a control signal to the first direction selection line to switch the connection between the second conductive lines and the first direction transmission line, and transfers a control signal to the second direction selection line to switch the connection between the first conductive lines and the second direction transmission line.

17. The image gathering apparatus of claim 16, wherein the first conductive lines and the second conductive lines includes the data lines, the scan lines, the power lines, the Bias lines, the common electrode lines, the reading lines and the control lines of the array.

18. The image gathering apparatus of claim 16, wherein the array gather a first information including an image, a gesture or a facial expression, and the dual-mode touch sensing apparatus senses a second information including a position, a height or an action.

19. The image gathering apparatus of claim 18, further comprising to build a relation and give a response based on the first information and the second first information.

20. The image gathering apparatus of claim 19, wherein the relation and the response includes numbers, characters, accomplished, OK, stop, a crash, or death, crying, laughing, angry, sad, to encode or discoed the gathered data, to calculate or compare the gathered data, to transfer the gathered data, to display the gathered data or images, or to compare the images.