TW202024876A - False connection processing method applicable to multi-touch of triangular electrode pattern, touch device and information processing device capable of deleting the false connection that is realized by a control circuit - Google Patents

Abstract

A false connection processing method applicable to multi-touch of the triangular electrode pattern is realized by a control circuit, which is characterized by comprising: performing a bridge connection status judgement procedure according to a first provisional effective sensing value corresponding to a pair of triangular electrodes in the previous frame of touch data, and a second provisional effective sensing value corresponding to that pair of triangular electrodes in the subsequent frame of touch data. The bridge connection state judgment procedure includes: calculating the difference between the first provisional effective sensing value and the second provisional effective sensing value; and comparing the difference with a first threshold, therefore when the difference is less than the first threshold value, it is determined that the touch data of the previous frame or the touch data of the subsequent frame is a frame of bridge connection status touch data.

Description

False connection processing method, touch device and information processing device for triangular electrode pattern multi-touch

The present invention relates to a multi-point touch sensing method of triangular electrode patterns, in particular to a false connection processing method used for multi-point touch of triangular electrode patterns.

Today's technology is changing with each passing day. With the development of touch technology, capacitive touch screens, as a human-computer interaction interface, have been increasingly used in various types of terminal devices, such as smart watches and other wearable devices, and smart homes. on. Currently, touch sensing structures used in touch screens include a single-layer self-capacitance touch sensing structure and a double-layer mutual-capacitance touch sensing structure.

However, in general, a touch screen with a single-layer self-capacitance touch sensing structure will sense the connection state of the bridge (Bridge) generated by the multi-touch operation under certain multi-touch operation conditions. To a false vertical or horizontal dash. Please refer to FIGS. 1 and 2 together, in which FIG. 1 shows a schematic diagram of a conventional touch device having a single-layer self-capacitance touch sensing structure sensing a false vertical scribe; and FIG. 2 shows A schematic diagram of a conventional touch device with a single-layer self-capacitance touch sensing structure sensing a false horizontal scribe line.

As shown in FIG. 1, a single-layer self-capacitance touch sensing structure 10 has a vertical triangular sensing electrode pattern, and a user first presses a touch point A on a pair of triangular electrodes with a finger, and Before the finger leaves touch point A, quickly press another finger under touch point A. Another touch point B on the same pair of triangular electrodes will create a bridge connection state between touch point A and touch point B , And the touch device senses a false vertical scribe line 11. In addition, as shown in FIG. 2, a single-layer self-capacitance touch sensing structure 10 has a vertical triangular sensing electrode pattern, and a user first presses a touch point A on a first pair of triangular electrodes with a finger , And before the finger leaves touch point A, quickly press another finger to the right of touch point A, which is located on another touch point on a second pair of triangular electrodes adjacent to the first pair of triangular electrodes B, a bridge connection state will be generated between touch point A and touch point B, and the touch device will sense a false horizontal scribe line 12.

In order to solve the above-mentioned problems, a novel self-capacitance touch sensing method for a single-layer triangular electrode structure is urgently needed in the art.

One purpose of the present invention is to disclose a false connection processing method for triangular electrode pattern multi-touch, which can determine whether there is a bridge connection state by comparing the touch data of one frame before and the touch data of one frame later , Thereby providing the function of eliminating false connections.

Another object of the present invention is to disclose a touch device, which can provide a function of eliminating false connections by executing a false connection processing method for multi-touch with triangular electrode patterns.

Another object of the present invention is to disclose an information processing device, which has a touch device, and the touch device can eliminate false connections by executing a false connection processing method for triangular electrode pattern multi-touch Function.

To achieve the foregoing objective, a false connection processing method for multi-touch with triangular electrode patterns is proposed, which is implemented by a control circuit and is characterized by including:

A bridge is made based on a first provisional effective sensing value corresponding to a pair of triangular electrodes in the previous touch data and a second provisional effective sensing value corresponding to the pair of triangular electrodes in the subsequent touch data A connection state judgment program, the bridge connection state judgment program includes: calculating the difference between the first tentative effective sensing value and the second tentative effective sensing value; and comparing the difference with a first threshold to When the difference is less than the first threshold, it is determined that the touch data of the first frame or the touch data of the subsequent frame is a touch data of a bridge connection state.

In an embodiment, the false connection processing method for triangular electrode pattern multi-point touch control further includes: discarding the touch coordinates calculated from each frame of the bridge connection state touch data.

In an embodiment, the first provisional effective sensing value and the second provisional effective sensing value are both sensing values greater than a second threshold.

To achieve the foregoing objective, the present invention further provides a touch device having a triangular electrode pattern structure and a control circuit for driving the triangular electrode pattern structure, and the control circuit is used to perform a multi-touch false connection Processing method, and the processing method is characterized by including:

A bridge is made based on a first provisional effective sensing value corresponding to a pair of triangular electrodes in the previous touch data and a second provisional effective sensing value corresponding to the pair of triangular electrodes in the subsequent touch data A connection state judgment program, the bridge connection state judgment program includes: calculating the difference between the first tentative effective sensing value and the second tentative effective sensing value; and comparing the difference with a first threshold to When the difference is less than the first threshold, it is determined that the touch data of the first frame or the touch data of the subsequent frame is a touch data of a bridge connection state.

In one embodiment, the multi-touch false connection processing method further includes: discarding the touch coordinates calculated from each frame of the bridge connection state touch data.

In an embodiment, the first provisional effective sensing value and the second provisional effective sensing value are both sensing values greater than a second threshold.

In addition, the present invention also provides an information processing device having a central processing unit and the aforementioned touch device, wherein the central processing unit is used to receive coordinate information of multiple touch points output by the touch device.

In a possible embodiment, the information processing device may be a smart phone or a portable computer device.

In order to enable your reviewer to further understand the structure, features and purpose of the present invention, drawings and detailed descriptions of preferred specific embodiments are attached as follows.

Please refer to FIG. 3, which shows a flowchart of an embodiment of a false connection processing method for triangular electrode pattern multi-touch according to the present invention, wherein the false connection processing method is implemented by a control circuit. As shown in FIG. 3, the false connection processing method includes: detecting a first tentative effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a frame of subsequent touch data with the A second tentative effective sensing value corresponding to the triangular electrode (step a); a bridge connection state determination procedure is performed according to the first tentative effective sensing value and the second tentative effective sensing value, and the bridge connection state determination procedure includes : Calculate the difference between the first tentative effective sensing value and the second tentative effective sensing value; and compare the difference with a first threshold to determine the difference when the difference is less than the first threshold The touch data of the first frame or the touch data of the following frame is a frame of bridge connection state touch data (step b); and the touch coordinates calculated from the bridge connection state touch data of each frame are discarded (step c) .

In step a, the first provisional effective sensing value and the second provisional effective sensing value are both sensing values greater than a second threshold. That is, when a sensed value is greater than the second threshold, the sensed value is tentatively determined as a touch value, and then it is determined in step b whether it corresponds to a false touch point.

Please refer to FIG. 4, which illustrates a schematic diagram of the execution process of the false connection processing method for triangular electrode pattern multi-touch in FIG. 3 for a vertical jump operation. As shown in Figure 4, a first frame of touch data has provisional effective sensing values (18246, 7040); a second frame of touch data has provisional effective sensing values (15807, 16979); and a third frame of touch data The data has provisional effective sensing values (12167, 17803). In this embodiment, the first threshold is 3000 and the second threshold is 5000. Regarding the first frame of touch data and the second frame of touch data, since 18246-15807=2439<3000, there is a bridge connection state between the first frame of touch data and the second frame of touch data; and, As for the second frame of touch data and the third frame of touch data, since 17803-16979=824<3000, there is a bridge connection state between the second frame of touch data and the third frame of touch data. In addition, when calculating the touch coordinates, taking the provisional effective sensing value (18246, 7040) as an example, the position of the touch point can be determined in a pair of vertical triangular electrodes in a ratio of 18246:7040. Accordingly, the present invention can discard the false longitudinal bridge point coordinates in the middle by judging the bridge connection state and retaining the coordinates of the two end points.

Please refer to FIG. 5, which illustrates a schematic diagram of the execution process of the false connection processing method for triangular electrode pattern multi-touch in FIG. 3 for a horizontal jump operation. As shown in Figure 5, because a first frame of touch data has provisional effective sensing values (13186, 12159); a second frame of touch data has provisional effective sensing values (10653, 9694), (4897, 6978) And (11074, 9219); and a third frame of touch data has provisional valid sensing values (5096, 8060) and (14400, 12291). In this embodiment, the first threshold is 3000 and the second threshold is 5000. For the first frame of touch data and the second frame of touch data, since 13186-10653=2533<3000, there is a bridge connection state between the first frame of touch data and the second frame of touch data; For the second frame of touch data and the third frame of touch data, because 6978-6060=918<3000, there is a bridge connection state between the second frame of touch data and the third frame of touch data. Accordingly, the present invention can discard the false horizontal bridge point coordinates in the middle by judging the bridge connection state and retaining the coordinates of the two end points.

Based on the above description, the present invention further provides a touch device. Please refer to FIG. 6, which shows a block diagram of an embodiment of the touch device of the present invention. As shown in FIG. 6, a touch device 100 has a triangular electrode pattern structure 110 and a control circuit 120 for driving the triangular electrode pattern structure 110. The control circuit 120 is used to perform the functions shown in FIG. Triangular electrode pattern multi-touch false connection processing method to eliminate false connections.

Based on the above description, the present invention further provides an information processing device. Please refer to FIG. 7, which shows a block diagram of an embodiment of the information processing device of the present invention. As shown in FIG. 7, an information processing device 200 has a central processing unit 210 and a touch device 220, wherein the touch device 220 has a triangular electrode pattern structure 221 and a control for driving the triangular electrode pattern structure 221 Circuit 222, the control circuit 222 is used to perform the false connection processing method for triangular electrode pattern multi-touch as shown in FIG. 3 to eliminate false connections, and the central processing unit 210 is used to receive all The coordinate information of multiple touch points output by the touch device 220 is described.

In addition, in possible embodiments, the information processing device may be a smart phone or a portable computer device.

With the technical solutions disclosed above, the present invention can provide the following advantages:

Without increasing the hardware circuit, the false connection problem or the jitter state caused by the bridge connection state can be effectively eliminated in a software manner.

The disclosure in this case is a preferred embodiment, and any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those familiar with the art will not deviate from the scope of the patent right of the case.

In summary, regardless of the purpose, means and effect of this case, it is shown that it is very different from the conventional technology, and its first invention is suitable for practicality, and it does meet the patent requirements of the invention. I sincerely ask the examiner to check it out and grant the patent as soon as possible. Society is for the best prayer.

10: Single-layer self-capacitance touch sensing structure 11: False vertical line 12: False horizontal line 100: Touch device 110: Triangular electrode pattern structure 120: control circuit 200: Information processing device 210: Central Processing Unit 220: Touch device 221: Triangular electrode pattern structure 222: control circuit Step a: Detect a first tentative effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second tentative effective sensing value corresponding to the pair of triangular electrodes in a subsequent frame of touch data Measured value Step b: Perform a bridge connection state determination procedure based on the first tentative effective sensing value and the second tentative effective sensing value, the bridge connection state determination procedure includes: calculating the first tentative effective sensing value and the second tentative And compare the difference with a first threshold to determine that the touch data of the first frame or the touch data of the subsequent frame is less than the first threshold One-frame bridge connection status touch data Step c: Abandon the touch coordinates calculated from the touch data of the bridge connection state in each frame

FIG. 1 is a schematic diagram of a conventional touch device having a single-layer self-capacitance touch sensing structure sensing a false vertical scribe line. 2 is a schematic diagram of a conventional touch device with a single-layer self-capacitance touch sensing structure sensing a false horizontal scribe line. 3 shows a flowchart of an embodiment of a false connection processing method for triangular electrode pattern multi-touch according to the present invention. FIG. 4 is a schematic diagram illustrating the execution process of the false connection processing method for triangular electrode pattern multi-touch in FIG. 3 for a vertical jump operation. FIG. 5 is a schematic diagram showing the execution process of the false connection processing method for triangular electrode pattern multi-touch of FIG. 3 for a horizontal jump operation. FIG. 6 is a block diagram of an embodiment of the touch device of the present invention. Fig. 7 shows a block diagram of an embodiment of the information processing device of the present invention.

Step a: Detect a first tentative effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second tentative effective sensing value corresponding to the pair of triangular electrodes in a subsequent frame of touch data Measured value

Step b: Perform a bridge connection state judgment procedure based on the first tentative effective sensing value and the second tentative effective sensing value, the bridge connection state judgment procedure includes: calculating the first tentative effective sensing value and the second tentative And compare the difference with a first threshold to determine that the touch data of the first frame or the touch data of the subsequent frame is less than the first threshold One-frame bridge connection status touch data

Step c: Abandon the touch coordinates calculated from the touch data of the bridge connection state in each frame

Claims (8)

A false connection processing method for triangular electrode pattern multi-touch is implemented by a control circuit, and is characterized in that it includes: a first tentative corresponding to a pair of triangular electrodes in the previous touch data according to a frame The effective sensing value and a second tentative effective sensing value corresponding to the pair of triangular electrodes in the subsequent touch data are subjected to a bridge connection state determination procedure, and the bridge connection state determination procedure includes: calculating the first tentative effective sensing value The difference between the measured value and the second tentative effective sensing value; and compare the difference with a first threshold, so as to determine the previous touch data of the frame or the first threshold when the difference is less than the first threshold The touch data after the frame is one-frame bridge connection state touch data. The false connection processing method for triangular electrode pattern multi-touch as described in item 1 of the scope of patent application further includes: discarding the touch coordinates calculated from the touch data of the bridge connection state in each frame. The false connection processing method for triangular electrode pattern multi-touch as described in item 1 of the scope of patent application, wherein the first provisional effective sensing value and the second provisional effective sensing value are both greater than a first Two-threshold sensing value. A touch device having a triangular electrode pattern structure and a control circuit for driving the triangular electrode pattern structure, the control circuit is used to execute a multi-touch false connection processing method, and the characteristics of the processing method It includes: a first tentative effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second tentative effective sensing value corresponding to the pair of triangular electrodes in a subsequent frame of touch data Value to perform a bridge connection state judgment program, the bridge connection state judgment program includes: calculating the difference between the first tentative effective sensing value and the second tentative effective sensing value; and comparing the difference with a first threshold , When the difference is less than the first threshold, it is determined that the touch data of the first frame or the touch data of the subsequent frame is a touch data of a bridge connection state. The touch device described in claim 4, wherein the multi-touch false connection processing method further includes: discarding the touch coordinates calculated from each frame of the bridge connection state touch data. The touch device according to claim 4, wherein the first provisional effective sensing value and the second provisional effective sensing value are both sensing values greater than a second threshold. An information processing device, which has a central processing unit and the touch device as described in any one of items 4-6 of the scope of patent application, wherein the central processing unit is used to receive multiple output from the touch device Coordinate information of touch points. For example, the information processing device described in item 7 of the scope of patent application is a smart phone or a portable computer device.

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