CN104750292A - Touch device and touch mode switching method thereof - Google Patents

Abstract

The present invention discloses a touch device and a touch mode switching method thereof. The touch device comprises a touch panel for detecting a touch track and a touch area of an input tool; and a control unit coupled to the touch panel for switching the touch mode of the touch panel according to the touch track and the touch area of the input tool.

Description

Touch device and touch mode switching method thereof

technical field

The present invention relates to an electronic device, in particular to a touch device and a touch mode switching method thereof.

Background technique

With the rapid development of technology, most electronic products, such as: notebook computers, mobile phones or portable multimedia players (portable multimedia player), etc., often have a touch panel as a new generation input interface. Generally speaking, touch panels are roughly classified into resistive touch panels, capacitive touch panels, optical touch panels, acoustic wave touch panels, and electromagnetic touch panels according to different sensing methods. Since the capacitive touch panel has the advantages of fast response time, good reliability and high durability, the capacitive touch panel has been widely used in electronic products.

The operation of the capacitive touch panel is to use a finger or a conductive object, such as a stylus, to approach or touch the touch panel to change the capacitance value on the touch panel. When a change in the capacitance value is detected, a position approached or touched by a finger or a conductive object can be determined, and a functional operation corresponding to the touched position can be performed.

Wherein, when using a stylus for touch, it is necessary to switch the touch mode of the capacitive touch panel to improve the sensitivity of the capacitive touch panel, so as to accurately determine the touch position of the stylus. However, since the touch sensing signal strength of the stylus is similar to the noise of the capacitive touch panel, it is easy for the capacitive touch panel to misjudge the noise as the touch sensing signal of the stylus, and the The capacitive touch panel switches to a high-sensitivity touch mode, which increases unnecessary power consumption.

Contents of the invention

The invention provides a touch device and a touch mode switching method thereof, which can prevent the touch device from mistakenly changing its touch mode to a high-sensitivity mode, thereby increasing unnecessary power consumption.

The touch device of the present invention includes a touch panel and a control unit. Wherein the touch panel detects the touch track and touch area of the input tool. The control unit is coupled to the touch panel, and switches the touch mode of the touch panel according to the touch track and touch area of the input tool.

In an embodiment of the present invention, when the touch track conforms to the preset track and the touch area is smaller than the first preset area, the control unit switches the touch mode of the touch panel to the first touch mode, and when the touch When the control area is larger than the second preset area or the touch panel has not detected a touch operation for the first preset time, the control unit switches the touch mode of the touch panel to the second touch mode, wherein the touch panel is in the second touch mode. The touch sensitivity in the first touch mode is higher than that in the second touch mode, and the second preset area is larger than the first preset area.

In an embodiment of the present invention, the aforementioned preset track includes a track where the touch panel is continuously clicked within the second preset time.

In an embodiment of the present invention, the above-mentioned control unit also judges the type of the input tool according to the intensity of the touch sensing signal corresponding to the input tool. When the intensity of the touch sensing signal of the tool is lower than the preset intensity, the control unit switches the touch mode of the touch panel to the first touch mode.

In an embodiment of the present invention, the input tool corresponding to the first touch mode is a stylus, and the input tool corresponding to the second touch mode is a user's finger.

The touch mode switching method of the touch device of the present invention includes the following steps. Detect the touch track and touch area of the input tool. The touch mode of the touch device is switched according to the touch track and touch area of the input tool.

In an embodiment of the present invention, the step of switching the touch mode of the touch device according to the touch track and the touch area includes the following steps. It is judged whether the touch track conforms to the preset track and the touch area is smaller than the first preset area. If the touch track conforms to the preset track and the touch area is smaller than the first preset area, the touch mode of the touch device is switched to the first touch mode. It is judged whether the touch area is larger than a second preset area or whether the touch device has not detected a touch operation for a first preset time. If the touch area is larger than the second preset area or the touch device has not detected a touch operation for the first preset time, switch the touch mode of the touch device to the second touch mode, wherein the touch device is in the first The touch sensitivity in the touch mode is higher than the touch sensitivity when the touch device is in the second touch mode, and the second preset area is larger than the first preset area.

In an embodiment of the present invention, the aforementioned preset trajectory includes the touch device being clicked continuously within a second preset time.

In an embodiment of the present invention, the above touch mode switching method further includes the following steps. It is judged whether the intensity of the touch sensing signal corresponding to the input tool is less than a preset intensity. If the touch trajectory conforms to the preset trajectory, the touch area is smaller than the preset area, and the touch sensing signal strength of the corresponding input tool is lower than the preset strength, the touch mode of the touch device is switched to the first touch mode.

In an embodiment of the present invention, the input tool corresponding to the first touch mode is a stylus, and the input tool corresponding to the second touch mode is a user's finger.

Based on the above, the embodiments of the present invention switch the touch mode of the touch panel according to the touch track and touch area of the input tool, so as to prevent the touch device from mistakenly changing its touch mode to a high-sensitivity mode, and Increase unnecessary power consumption.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

Description of drawings

FIG. 1 shows a schematic diagram of a touch device according to an embodiment of the present invention.

FIG. 2A shows a schematic diagram of the count value corresponding to the touch sensing signal of the stylus.

FIG. 2B is a schematic diagram of the count value of the touch sensing signal corresponding to the user's finger.

FIG. 3 shows a touch mode switching method of a touch device according to an embodiment of the present invention.

FIG. 4 shows a touch mode switching method of a touch device according to another embodiment of the present invention.

Description of reference symbols

102: Touch panel

104: Control unit

S302～S312, S402: Steps of the touch mode switching method of the touch device

Detailed ways

FIG. 1 shows a schematic diagram of a touch device according to an embodiment of the present invention, please refer to FIG. 1 . The touch device can be an electronic device with touch function such as a smart phone, a tablet computer, or a notebook computer. The touch device can include a touch panel 102 and a control unit 104 , and the control unit 104 is coupled to the touch panel 102 . Wherein the touch panel 102 is used to detect the touch track and the touch area of the input tool, and the control unit 104 is used to switch the touch mode of the touch panel 102 according to the touch track and the touch area of the input tool, so as to The touch panel 102 can correspond to different input tools and have different touch sensitivities. The input tool may be, for example, a stylus or a user's finger, but is not limited thereto.

In detail, as shown in FIG. 2A and FIG. 2B respectively, the schematic diagrams of the count values of the corresponding touch sensing signals obtained by the touch panel sensing the stylus and the user's fingers are shown, wherein the larger the count value is It represents the stronger the strength of the sensing signal. Since both the touch area and the touch intensity of the touch sensing signal corresponding to the stylus are smaller than the touch area and signal intensity of the touch sensing signal corresponding to the user's finger, the control unit 104 controls the input tool according to the touch of the input tool. When switching the touch mode of the touch panel 102 according to the control track and touch area, it can be determined whether the touch track of the input tool conforms to the preset track and the touch area is smaller than the first preset area. If the touch track conforms to the preset track and the touch area is smaller than a first preset area, the control unit 104 can switch the touch mode of the touch panel to the first touch mode, that is, switch to the touch mode suitable for the stylus High sensitivity touch mode for operation.

Wherein, the preset track can be, for example, a touch track of continuously clicking on the touch panel 102, for example, using a stylus to continuously click the touch panel 102 twice, so that the control unit 104 switches the touch mode of the touch panel to First touch mode. As mentioned above, since the touch area corresponding to the touch sensing signal of the stylus is smaller than the touch area corresponding to the touch sensing signal of the user's finger, the touch control is switched according to the touch track and the touch area at the same time. The touch mode of the panel 102 can ensure that the input tool for touch operation is a stylus, and the signal characteristics of the touch sensing signal generated by two consecutive clicks are different from the signal characteristics of general noise, so it can To prevent the control unit 104 from mistakenly changing the touch mode of the touch panel 102 to a high-sensitivity mode, thereby increasing unnecessary power consumption.

In addition, after the touch panel 102 is switched to the first touch mode, the control unit 104 may continue to determine whether to switch the touch mode of the touch panel 102 again according to subsequent touch operation conditions detected by the touch panel 102 . For example, the control unit 104 can determine whether the touch area of the touch panel 102 is larger than the second preset area (the size of the second preset area is larger than the first preset area) or whether the touch panel has not been detected for a preset period of time. Touch operation, if the touch area of the touch panel 102 is greater than the second preset area or the touch panel has not detected a touch operation for a preset period of time, the control unit 104 switches the touch mode of the touch panel 102 It is the second touch mode, that is, switching to a high-sensitivity touch mode suitable for the user's finger operation. Wherein, the touch sensitivity of the touch panel 102 in the second touch mode is lower than that of the touch panel 102 in the first touch mode, so the power consumption of the touch device can be reduced.

It should be noted that the above embodiment only switches the touch mode of the touch panel 102 according to the touch track and touch area of the input tool, but as shown in FIG. 2A and FIG. The intensity of is also significantly smaller than the intensity of the touch sensing signal corresponding to the user's finger. Therefore, in some embodiments, the intensity of the touch sensing signal can also be used as a basis for switching the touch mode of the touch panel 102 . That is, when the control unit 104 determines that the touch track of the input tool conforms to the preset track, the touch area of the input tool is smaller than the preset area, and the intensity of the touch sensing signal corresponding to the input tool is smaller than the preset strength, the control unit 104 Then the touch mode of the touch panel 102 is switched to the first touch mode.

FIG. 3 shows a touch mode switching method of a touch device according to an embodiment of the present invention, please refer to FIG. 3 . In summary, the touch mode switching method of the above touch device may include the following steps. Firstly, the touch track and touch area of the input tool are detected (step S302). Next, switch the touch mode of the touch device according to the touch track and touch area of the input tool (step S304 ). In detail, step S304 may include first judging whether the touch track conforms to a preset track and the touch area is smaller than the first preset area (step S306), wherein the preset track may be, for example, a touch that is continuously clicked on the touch device. Control the track, for example, click the touch device twice continuously within a second preset time. If the touch track conforms to the preset track and the touch area is smaller than the first preset area, switch the touch mode of the touch device to the first touch mode (step S308); on the contrary, if the touch track does not meet the preset If the track or touch area is not smaller than the first preset area, return to step S302 to continue detecting the touch track and touch area of the input tool.

Next, after step S308, it is determined whether the touch area of the input tool is larger than the second preset area or whether the touch device has not detected a touch operation for a first preset time (step S310). If the touch area of the input tool is greater than the second preset area or the touch device has not detected a touch operation for a first preset time, switch the touch mode of the touch device to the second touch mode (step S312 ), wherein the touch sensitivity when the touch device is in the first touch mode is higher than the touch sensitivity when the touch device is in the second touch mode, and in addition, the above-mentioned second preset area is larger than the first preset area. Conversely, if the touch area of the input tool is not larger than the second preset area or the touch device has not detected a touch operation for a first preset time, return to step S302 to continue detecting the touch track of the input tool and Touch area. Wherein, the above-mentioned input tool corresponding to the first touch mode may be, for example, a stylus, and the input tool corresponding to the second touch mode may be, for example, a user's finger, but it is not limited thereto.

FIG. 4 shows a touch mode switching method of a touch device according to another embodiment of the present invention, please refer to FIG. 4 . The difference between this embodiment and the touch mode switching method of the embodiment in FIG. (i.e. after step S306), it is also judged whether the touch sensing signal strength corresponding to the input tool is less than the preset strength (step S402), if the touch sensing signal strength corresponding to the input tool is less than the preset strength, that is, if the touch The control track conforms to the preset track, the touch area is smaller than the preset area, and the touch sensing signal strength of the corresponding input tool is smaller than the preset strength, before entering step S308 to switch the touch mode of the touch device to the first touch mode. On the contrary, if the intensity of the touch sensing signal corresponding to the input tool is not less than the preset intensity, return to step S302 to continue detecting the touch track and touch area of the input tool.

In summary, the present invention switches the touch mode of the touch panel according to the touch track and touch area of the input tool, so as to prevent the touch device from mistakenly changing its touch mode to a high-sensitivity mode, thereby increasing the Unnecessary power consumption.

Claims (10)

1. a contactor control device, comprising:

One contact panel, detects touch trajectory and the touch-control area of an input tool; And

One control module, couples this contact panel, switches the control mode touch mode of this contact panel according to this touch trajectory of this input tool and this touch-control area.

2. touch control display apparatus contactor control device as claimed in claim 1, wherein when this touch trajectory meets a desired guiding trajectory and this touch-control area is less than first preset area, the control mode touch mode of this contact panel is switched to one first control mode touch mode by this control module, and when this touch-control area is greater than one second preset area or lasting one first Preset Time of this contact panel touch control operation do not detected, the control mode touch mode of this contact panel is switched to one second control mode touch mode by this control module, the highly sensitive touch-control sensitivity when this contact panel is in this second control mode touch mode of touch-control when wherein this contact panel is in this first control mode touch mode, this second preset area is greater than this first preset area.

3. contactor control device as claimed in claim 2, wherein this desired guiding trajectory is included in one second Preset Time this contact panel interior by the track of adopting consecutive click chemical reaction.

4. contactor control device as claimed in claim 2, wherein this control module is more according to the touch-control sensing signal strength of input tool judging the type of this input tool, when this touch trajectory meet this desired guiding trajectory, this touch-control area be less than this preset area and to should the touch-control sensing signal strength of input tool be less than a preset strength time, the control mode touch mode of this contact panel is switched to this first control mode touch mode by this control module.

5. contactor control device as claimed in claim 2, wherein to should this input tool of the first control mode touch mode be a pointer, to should this input tool of the second control mode touch mode be the finger of user.

6. a control mode touch mode changing method for contactor control device, comprising:

Detect touch trajectory and the touch-control area of an input tool; And

The control mode touch mode of this contactor control device is switched according to this touch trajectory of this input tool and this touch-control area.

7. control mode touch mode changing method as claimed in claim 6, the step wherein switching the control mode touch mode of this contactor control device according to this touch trajectory and this touch-control area comprises:

Judge whether this touch trajectory meets a desired guiding trajectory and this touch-control area is less than one first preset area;

If this touch trajectory meets this desired guiding trajectory and this touch-control area is less than this first preset area, the control mode touch mode of this contactor control device is switched to one first control mode touch mode;

Judge whether this touch-control area is greater than one second preset area or whether lasting one first Preset Time of this contactor control device does not detect touch control operation; And

Continue this first Preset Time touch control operation do not detected if this touch-control area is greater than this second preset area or this contactor control device, the control mode touch mode of this contactor control device is switched to one second control mode touch mode, the highly sensitive touch-control sensitivity when this contactor control device is in this second control mode touch mode of touch-control when wherein this contactor control device is in this first control mode touch mode, this second preset area is greater than this first preset area.

8. control mode touch mode changing method as claimed in claim 7, wherein this desired guiding trajectory is included in one second Preset Time this contactor control device interior by the track of adopting consecutive click chemical reaction.

9. control mode touch mode changing method as claimed in claim 7, more comprises:

Judge the touch-control sensing signal strength of input tool whether being less than a preset strength; And

If this touch trajectory meets this desired guiding trajectory, this touch-control area is less than this preset area and to should the touch-control sensing signal strength of input tool be less than this preset strength time, the control mode touch mode of this contactor control device is switched to this first control mode touch mode.

10. control mode touch mode changing method as claimed in claim 7, wherein to should this input tool of the first control mode touch mode be a pointer, to should this input tool of the second control mode touch mode be the finger of user.