TWI390437B - Method for executing instructions in a capacitive touch panel - Google Patents

Description

Instruction execution method for a capacitive touch panel

The present invention relates to an instruction execution method; and more particularly to an instruction execution method for a capacitive touch panel.

As the technology of touch panels has matured, display screens for portable electronic devices have become increasingly popular. The conventional touch panel includes a capacitive touch panel and a resistive touch panel. When the user touches the panel with a finger or a sensor bar during operation, the electronic device generates a touch signal and executes corresponding commands. Program or action.

However, there are still limitations in the operation of the conventional touch panel. The biggest limitation is that the screen must be touched to respond to the command. For example, when using a resistive touch panel, the user must generate partial pressure on the surface of the screen, and the resistive touch panel can recognize the position touched by the user; and the band must be used when operating the capacitive touch panel. Electrostatic conductors (such as a user's finger with charge) can create a capacitive effect on the part of the screen, and the capacitive touch panel can further identify the location touched by the user.

In the prior art, there is also a way to expose the user's operation without touching the screen, but other sensing devices, such as an ultrasonic sensor and an infrared sensor, must be added to judge the use. The action when the person has not touched, and recognizes and executes the corresponding instruction. However, the addition of other sensing devices is bound to lead to increased costs and is not conducive to the trend of gradually becoming lighter.

In view of this, the method in which the portable electronic device can recognize and execute the non-contact command without adding another sensing device is an urgent problem to be solved in the industry.

An object of the present invention is to provide an instruction execution method for a capacitive touch panel. When the instruction execution method is applied to a capacitive touch panel, the device can be identified and executed without additional sensing devices. The contact type command provides the user with more operating interfaces on the capacitive touch panel.

To achieve the above objective, the present invention provides an instruction execution method for a capacitive touch panel having a first sensing distance along a vertical panel direction. The method of the present invention includes the steps of: sensing whether an object falls within the first sensing distance; and when the object is sensed to fall within the first sensing distance, recording the object relative to the capacitive touch a plurality of positional parameters of the control panel movement; and executing a corresponding instruction according to the plurality of positional parameters.

The above described objects, technical features, and advantages of the present invention will become more apparent from the following description.

1A~1D is a schematic diagram of an instruction execution method of the present invention applied to a portable electronic device. In the figure, the portable electronic device 1 is a mobile phone, or may be a personal digital device. The technology of the present invention can be applied to electronic devices such as a Personal Digital Assistant (PDA), a Global Positioning System (GPS), and a notebook computer. The portable electronic device 1 has a display screen, and the display screen is a capacitive touch panel 10. The instruction execution method of the present invention is applied to the capacitive touch panel 10. Since the screen of the capacitive touch panel 10 is electrostatically sensitive, the computer program of the instruction execution method of the present invention can achieve non-contact operation, and other conventional components in the portable electronic device 1 are not otherwise Narration.

FIG. 1B is a side view of the portable electronic device 1. The capacitive touch panel 10 defines a first sensing distance D1 and a second sensing distance D2 along a vertical capacitive touch panel 10, wherein the second sensing distance D2 is smaller than the first The distance D1 is sensed. A sensing range D3 is defined between the first sensing distance D1 and a second sensing distance D2. The instruction execution method of the present invention is mainly applied to the sensing range D3.

Please refer to FIG. 2, which is a flowchart of the method for executing the instructions of the present invention. It should be noted that the operation mode of the capacitive touch panel 2 of the portable electronic device 1 can be selected by the user as a contact mode or a non-contact mode, and the contact mode is a general operation method of the touch screen. The instruction execution method of the present invention is applied to the non-contact mode; the portable electronic device 1 can also have the function of self-determination and switching operation mode, which is not limited herein. When the portable electronic device 1 is in the non-contact mode, step 21 is performed to sense whether an object (preferably a static-charged object such as a user's finger or an inductive bar) falls within the first sensing distance. In the case of D1, it can be determined that if the capacitive touch panel 10 continuously detects that the object is indeed maintained in the first sensing distance D1, it can be determined that the object falls on the first sensing distance. Within D1. For example, when performing the method of the present invention, the capacitive touch panel 10 scans at a frequency of 75 Hz, that is, reads 75 coordinates per second, wherein the first 30 coordinate points are captured to interpret the electrostatically charged object. The distance and coordinate position of the capacitive touch panel 10.

Next, step 22 is performed to start recording a plurality of positional parameters of the object relative to the movement of the capacitive touch panel 10. Referring to FIG. 1C, the object is formed to form a motion trajectory within the first sensing distance D1. schematic diagram. In detail, the portable electronic device 1 begins to record and store the position of the object relative to the capacitive touch panel 10 within a predetermined time range, including, for example, the coordinate value of the object relative to the capacitive touch panel. Or distance value. It should be noted that, when the object leaves the first sensing distance D1, it will be regarded as the user does not continue to operate, and the portable electronic device 1 stops recording the positional parameter of the object.

Then, the portable electronic device 1 further determines whether the user's instruction has been completed according to the positional parameters, and then executes a corresponding instruction. In detail, step 23 is performed first, according to at least one of the position parameters, determining whether the object falls within the second sensing distance D2; when the object is judged not to fall in the second sensing distance When D2 is inside, it indicates that the object is still within the sensing range D3 of the first sensing distance D1, and the user continues to use the object to input the command, and the position parameters still belong to the range in which subsequent interpretation is necessary.

Then, step 24 is performed to determine whether at least two position parameters are the same among the recorded position parameters. It is easy to say that if at least two position parameters are the same, it means that the user's motion remains unmoved for a period of time or sense. After a certain distance is translated within the measurement range D3, it is determined that the user's motion has been completed. For example, if the scan frequency is 75 Hz as described above, the last 10 scan points are continuously interpreted. When the coordinates and/or height values of the last 10 scan points are the same, the user's motion is maintained. If it is not moved or translated for a distance within the sensing range D3, it is judged that the user's instruction ends, and the next step is continued. The above-mentioned stop determination manner is merely an example, and the system manufacturer or the user can define it by itself, and is not limited herein. Since the position parameters are recorded in the sensing range D3, the portable electronic device 1 can completely record the motion trajectory of the object according to the change of the coordinate value and the distance value.

Next, step 25 is executed to compare the recorded position parameters to a corresponding instruction in a database. Finally, step 26 is executed, and the instructions corresponding to the position parameters are executed in the portable electronic device 1. Please refer to the 1C and 1D diagrams together. For example, after the motion track is converted into an instruction, the corresponding correspondence is "press accept", and the portable electronic device 1 can perform the next action according to the figure, as shown in the figure. Listen to calls from outside. It should be noted that when the object is a user's finger, the position parameters recorded in this embodiment are a gesture, and the form of the gesture is not limited, and the built-in data of the portable electronic device 1 is viewed. Or a user-defined gesture that represents a specific meaning.

Taking the actual application as an example, when the user is a driver of the car and is in a driving state, the mobile phone may be placed at a distance from the driver, and the user actually touches the screen, which may be difficult. Switching to the non-contact mode in advance, when the mobile phone calls, the user can first extend the finger within the sensing range without touching the mobile phone screen, and then operate a gesture action such as the panning action in FIG. 1C. At the end, the user can reach the desired operation without touching the mobile phone.

In addition, if the method of the present invention detects that the object is within the second sensing distance D2 at step 23, then step 27 is executed to execute another command. For example, if the user's finger is too close to the capacitive touch panel 10, it means that the user may prefer to use the contact mode, so that the capacitive touch panel 10 can be automatically switched from the non-contact mode to the conventional one. Contact mode. Similarly, another instruction executed in step 27 can be set by a user, and is not limited herein.

With the above-mentioned instruction execution method, the portable electronic device of the present invention can provide a non-contact operation interface without separately installing other sensors, so that the user can perform corresponding operation without contacting the capacitive touch panel. The instructions make the operation more diversified.

The embodiments described above are only intended to illustrate the embodiments of the present invention, and to explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalents that can be easily made by those skilled in the art are within the scope of the invention. The scope of the invention should be determined by the scope of the claims.

1. . . Portable electronic device

10. . . Capacitive touch panel

D1. . . First sensing distance

D2. . . Second sensing distance

D3. . . Sensing range

1A to 1D are schematic diagrams of an instruction execution method of the present invention for a portable electronic device;

Figure 2 is a flow chart of the method of executing the instructions of the present invention.

Claims (6)

An instruction execution method for a capacitive touch display panel, the capacitive touch display panel having a first sensing distance and a second sensing distance along a vertical panel direction, the second sensing distance system Less than the first sensing distance, the method includes: sensing that an object falls within the first sensing distance; and when sensing that the object falls within the first sensing distance, recording the object relative to the capacitive a plurality of positional parameters of the touch display panel, wherein the plurality of positional parameters include a plurality of coordinate values of the object relative to the capacitive touch display panel; determining whether the object falls within the second sensing distance; When the object is judged not to fall within the second sensing distance, the corresponding instruction is executed according to the plurality of position parameters; and when the object is determined to fall within the second sensing distance, executing another instruction . The method of claim 1, wherein when the object is judged not to fall within the second sensing distance, the step of executing the corresponding instruction further comprises: determining the plurality of position parameters according to the plurality of position parameters Whether at least two of the positional parameters are the same; and when at least two of the positional parameters are judged to be the same, the corresponding instruction is executed. The method of claim 1, wherein the step of recording the plurality of positional parameters of the object relative to the capacitive touch display panel comprises: recording the plurality of position parameters within a predetermined time. The method of claim 1, wherein the step of executing a corresponding instruction according to the plurality of location parameters further comprises: comparing the instruction corresponding to the plurality of location parameters in a database. The method of claim 1, which is applied to a portable electronic device having the capacitive touch display panel. The method of claim 1, wherein the plurality of positional parameters comprise a plurality of distance values of the object relative to the capacitive touch display panel.