CN105022518B - Portable electronic device and touch detection method thereof - Google Patents

Abstract

A portable electronic device and a touch detection method thereof are provided. The method detects touch by using a touch screen of the portable electronic device and judges whether the touch position falls in the edge area of the touch screen. When the touch position is in the edge area, the time that the touch is continuously present and the touch screen does not detect other touches is accumulated, and whether the accumulated time exceeds the preset time is judged. And when the accumulated time exceeds the preset time, removing the relevant information of the touch from the event triggered by the touch until the touch is finished.

Description

Portable electronic device and touch detection method thereof

technical field

The invention relates to an electronic device and a touch detection method thereof, and in particular to a portable electronic device and a touch detection method thereof.

Background technique

A touch screen is a display device that integrates capacitive, resistive or other touch detection elements on a flat display panel such as a liquid crystal. Since the touch screen can provide display and touch input functions at the same time, and its operation is simple and intuitive, it has gradually become a mobile phone, tablet computer, personal digital assistant (Personal Digital Assistant, PDA), multimedia player and other portable electronic devices. basic accessories.

For the convenience of portability, portable electronic devices are required to be light, thin, short, and small in appearance, which will limit the size of the touch screen that can be configured in the portable electronic device. In order to configure a larger touch screen in a limited space to provide users with a larger display and touch operation area, the current portable electronic devices have been designed in the direction of narrow borders.

However, when a user holds a portable electronic device for operation, the hand holding the device often accidentally touches the touch screen due to the narrow frame, which often causes malfunction of the portable electronic device.

Contents of the invention

The invention provides a portable electronic device and a touch detection method thereof, which can avoid malfunction of the portable electronic device caused by a user's hand holding the device.

The touch detection method for a portable electronic device of the present invention is suitable for a portable electronic device with a touch screen. This method is to use the touch screen to detect touch, and judge whether the position of the touch falls on the edge area of the touch screen. When the position of the touch falls on the edge area, the time during which the touch continues to exist and no other touch is detected by the touch screen is accumulated, and it is judged whether the accumulated time exceeds a preset time. When the accumulated time exceeds the preset time, the related information of the touch is removed from the event triggered by the touch until the touch ends.

In an embodiment of the present invention, the above-mentioned portable electronic device further includes a gravity sensor, and before the step of judging whether the touched position falls on the edge area of the touch screen, the method also uses the gravity sensor to detect whether the portable electronic device The placement state of the electronic device, wherein the placement state is one of a horizontal state and an upright state. Next, the edge areas used for determining the touched position are set as two edge areas of the touch screen in the horizontal direction in the detected placement state.

In an embodiment of the present invention, after the above-mentioned step of setting the edge area used for determining the touch position as the two edge areas of the touch screen in the horizontal direction in the detected placement state, the method further Use the gravity sensor to detect whether the placement state has changed, and when the placement state changes, adjust the edge area used to judge the touch position to the two edge areas of the touch screen in the horizontal direction in the changed placement state .

In an embodiment of the present invention, the step of using the touch screen to detect the touch includes detecting a screen wake-up signal when the screen is off, and when the screen wake-up signal is detected, the touch screen is activated to detect a touch located in the edge area, so as to Determines whether to remove touch-related information from events triggered by touches.

The portable electronic device of the present invention includes a touch screen, a storage unit and one or more processing units. Wherein, the touch screen is used to detect touch. The storage unit is used for storing multiple functional modules. The processing unit is connected to the touch screen and the storage unit for accessing and executing the function modules stored in the storage unit. The above functional modules include a touch position judgment module, a touch time judgment module and a touch information removal module. Wherein, the touch position judging module judges whether the touched position detected by the touch screen falls on the edge area of the touch screen. The touch time judging module will, when the touch position judging module judges that the touch position falls on the edge area, accumulate the time that the touch persists and no other touch is detected on the touch screen, and judge whether the accumulated time exceeds the preset time. The touch information removal module will remove the relevant information of the touch from the event triggered by the touch when the touch time judging module judges that the accumulated time exceeds the preset time until the touch ends.

In an embodiment of the present invention, the above-mentioned portable electronic device further includes a gravity sensor. The gravity sensor is used to detect the placement state of the portable electronic device, wherein the placement state is one of a horizontal state and an upright state. In addition, the above-mentioned functional module also includes an edge area setting module, which can set the two edge areas of the touch screen in the horizontal direction detected by the gravity sensor as the edge areas for judging the touch position .

In an embodiment of the present invention, the above-mentioned edge area setting module also uses the gravity sensor to detect whether the placement state changes, and when the placement state changes, the touch screen in the changed placement state is placed in the horizontal direction The two edge areas of are adjusted to be the edge areas for judging the touch position.

In an embodiment of the present invention, when the above-mentioned touch position judging module detects the screen wake-up signal when the screen is off, it activates the touch screen to detect the touch located in the edge area, so as to determine whether the touch is triggered by the touch. The relevant information of this touch is removed from the event.

In an embodiment of the present invention, the aforementioned edge area is an area within a preset distance from at least one edge of the touch screen.

Based on the above, the portable electronic device and the touch detection method thereof of the present invention detect the touch located at the edge area of the touch screen, and if the touch continues to exist and no other touch is detected during the existence, it is determined that the touch is a false touch by the user, This removes information about this touch from the event it triggered. Therefore, the malfunction caused by the user holding the portable electronic device can be avoided.

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 is a block diagram of a portable electronic device according to an embodiment of the invention.

FIG. 2 is a flowchart of a touch detection method according to an embodiment of the invention.

FIG. 3 is a schematic diagram of an edge area according to an embodiment of the invention.

FIG. 4 is a block diagram of a portable electronic device according to an embodiment of the invention.

FIG. 5 is a flowchart of a method for adjusting an edge region according to an embodiment of the invention.

FIG. 6A and FIG. 6B are respectively schematic diagrams illustrating edge area settings according to an embodiment of the present invention.

Explanation of reference signs:

10, 30, 40, 60: portable electronic devices;

12, 32, 42, 62: touch screen;

14, 44: storage unit;

142, 442: touch position judgment module;

144, 444: touch time judgment module;

146, 446: touch information removal module;

16, 48: processing unit;

34, 622, 624, 626, 628: edge area;

448: edge area setting module;

46: gravity sensor;

S202-S210: Steps of a touch detection method according to an embodiment of the present invention;

S502-S508: Steps of a method for adjusting an edge region according to an embodiment of the present invention.

Detailed ways

When a user holds a portable electronic device with one hand, his finger often touches the touch screen by mistake because the bezel of the portable electronic device is too narrow, but in this case the touch detected by the touch screen is usually located in the edge area prolonged touch. The present invention utilizes this feature to accumulate the time during which the touch at the edge of the touch screen lasts without other touches. Caused by the device, rather than the user's actual manipulation of the touch screen, the touch is removed from the event it triggered. Therefore, the purpose of avoiding accidental touch by the user can be achieved.

FIG. 1 is a block diagram of a portable electronic device according to an embodiment of the invention. Please refer to FIG. 1 , the portable electronic device 10 of this embodiment is, for example, a mobile phone, a smart phone, a personal digital assistant (Personal Digital Assistant, PDA), a tablet computer, an e-book, and other electronic devices with a touch screen, but is not limited thereto. The portable electronic device 10 includes a touch screen 12, a storage unit 14 and one or more processing units 16, and its functions are as follows:

The touch screen 12 is a display device integrating touch detection elements, which can provide both display and input functions. The display device is, for example, a liquid crystal display (Liquid Crystal Display, LCD), a light-emitting diode (Light-Emitting Diode, LED) display, a field emission display (Field Emission Display, FED) or other types of displays, but not limited thereto. The touch detection elements are arranged in columns and rows on the display device, and are used to detect the touch of the touch screen 12 by the user's finger, palm or other objects. The touch detection element may be, for example, a capacitive touch detection element, a surface acoustic wave touch detection element, an electromagnetic touch detection element or a near-field imaging touch detection element, but is not limited thereto.

The storage unit 14 is, for example, any type of fixed or removable random access memory (Random Access Memory, RAM), readable memory (Read-Only Memory, ROM), flash memory (Flash memory), optical disc or other similar devices Or a combination of these devices, which are used to store a plurality of functional modules that can be executed by the processing unit 16, and these functional modules are loaded by the processing unit 16 to execute the touch detection method of the present invention.

The processing unit 16 is, for example, a central processing unit (Central Processing Unit, CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (Digital Signal Processor, DSP), programmable controller , application specific integrated circuits (Application Specific Integrated Circuits, ASIC), programmable logic device (Programmable Logic Device, PLD) or other similar devices or a combination of these devices. The processing unit 16 is coupled to the touch screen 12 and the storage unit 14 , and can access and execute the function modules stored in the storage unit 14 to perform a touch detection function.

The above-mentioned functional modules include a touch position determination module 142 , a touch time determination module 144 and a touch information removal module 146 . These functional modules are, for example, computer programs that can be loaded into the processing unit 16 to perform touch detection functions. The following is an example to illustrate the detailed steps of the portable electronic device 10 performing the touch detection method.

FIG. 2 is a flowchart of a touch detection method according to an embodiment of the invention. Please refer to FIG. 2 , the method of this embodiment is applicable to the portable electronic device 10 in FIG. 1 , and the detailed steps of the touch detection method of the present invention are described below in combination with various components in the portable electronic device 10:

Firstly, the portable electronic device 10 uses the touch screen 12 to detect the user's touch (step S202), and the touch position determination module 142 determines whether the touch position falls on the edge area of the touch screen (step S204). Wherein, the aforementioned edge area is, for example, an area within a predetermined distance from at least one edge of the touch screen 12 in the touch screen 12 . The preset distance can be automatically adjusted according to the frame size of the portable electronic device 10 , for example, it can be preset at 0.5 to 1 cm, and can be manually adjusted by the user.

For example, FIG. 3 is a schematic diagram of an edge area according to an embodiment of the present invention. Please refer to FIG. 3 , the portable electronic device 30 of the present embodiment sets the area within 1 cm away from the upper edge, lower edge, left edge, and right edge of the touch screen 32 as the edge for judging the user's touch position. Area 34.

Returning to the process of FIG. 2, when the touch position judging module 142 judges that the touched position does not fall in the edge area, it can be determined that the touch is not a user's mistaken touch, so the process will return to step S202, and continue to be controlled by the touch screen 12. Detects the user's next touch. On the contrary, when the touch position judging module 142 judges that the touched position falls on the edge area of the touch screen 12, then it is judged that the touch may be a user's mistaken touch, and the touch time judging module 144 accumulates that the touch continues to exist and is touched during the existence. The control screen 12 does not detect the time of other touches (step S206), and judge whether this time exceeds the preset time (step S208).

Specifically, when the user holds the portable electronic device 10 with one hand for operation, he usually uses the other hand for operation, and when the user picks up the portable electronic device 10 with one hand to use the other hand There will be a gap between operations. In this embodiment, this gap is used to help determine whether the user's touch on the edge area is a false touch caused by holding the portable electronic device 10 . Only when the touch time exceeds the preset time and no other touch is detected within the preset time, it is determined that the touch is a false touch by the user.

It should be noted that the aforementioned preset time is, for example, between 0.5 second and 1 second, but is not limited thereto. Wherein, if the preset time is set longer, the number of false touches detected by the portable electronic device 10 is less, but the detection result is more accurate; otherwise, if the preset time is set shorter, the portable electronic device 10 will The device 10 can easily detect false touches, but the detection results are relatively inaccurate. Therefore, the user can adjust the length of the preset time at any time according to his operating habits.

Returning to the flow chart of FIG. 2, when the touch time judgment module 144 judges that the accumulated time exceeds the preset time, the touch information removal module 146 will remove the relevant information of the touch from the event triggered by it until until the touch ends (step S210). Otherwise, the process returns to step S202, and the touch screen 12 continues to detect the next touch of the user. Wherein, since when the touch screen 12 detects a touch, the screen displayed by the portable electronic device 10 on the touch screen 12 may be different screens such as a standby screen, a main menu screen, and an application screen currently being executed, and corresponds to the above-mentioned Touching the position on the touch screen 12 may trigger different events, such as triggering an unlock event on the standby screen, triggering an application start event on the main menu screen, and triggering an application operation event on the application screen. Wait. However, after the judgment by the above method, the touch detected by the touch screen 12 has been judged as a false touch, so this embodiment removes the relevant information of this touch from the event triggered by it, and excludes this touch. Malfunction caused by touch.

It should be noted that, in this embodiment, the touch detection method is applicable at any point in time when the screen is turned on, and can detect user's false touch at any time. However, in another embodiment, the touch detection method may only be used at the moment when the portable electronic device wakes up from the screen-off state. Wherein, the above-mentioned touch position determination module 142, for example, will start the touch screen 12 to detect the touch located in the edge area when the screen is turned off and detect the screen wake-up signal, and the touch information removal module 146 will decide whether to touch the touch position from then on. Remove touch related information from the triggered event. Specifically, when a user starts using a portable electronic device, he usually holds the portable electronic device with one hand and presses a physical button such as a power button or a home button to wake up the screen, and then operates the touch screen with the other hand. This embodiment utilizes this gap to detect whether the edge area is touched by the user at the moment the touch screen is awakened, so as to eliminate false touches in advance.

Through the above method, the portable electronic device can accurately determine whether the user's touch on the edge of the touch screen is a false touch, and accordingly remove the touch from the event triggered by it, thereby avoiding false actions of the portable electronic device.

It should be noted that, in the above embodiments, the edge areas used to determine the touch position are preset at four edges of the touch screen. In another embodiment, since the user is usually accustomed to holding the portable electronic device on both sides when holding it with one hand, another embodiment of the present invention can further detect the orientation of the portable electronic device, and according to Adjust the position of the edge area to match the user's actual operation style. Hereinafter, another embodiment will be given in detail.

FIG. 4 is a block diagram of a portable electronic device according to an embodiment of the invention. Please refer to FIG. 1 , the portable electronic device 40 of this embodiment is, for example, a mobile phone, a smart phone, a personal digital assistant, a tablet computer, an electronic book, etc., with a touch screen, but is not limited thereto. The portable electronic device 40 includes a touch screen 42 , a storage unit 44 , a gravity sensor 46 and one or more processing units 48 . The types and functions of the touch screen 42 , the storage unit 44 and the processing unit 48 are the same or similar to those of the touch screen 12 , the storage unit 14 and the processing unit 16 in the foregoing embodiments, so details are not repeated here.

Different from the previous embodiments, the portable electronic device 40 of this embodiment is additionally equipped with a gravity sensor 46, which can be used to detect the components of the portable electronic device 40 on three axes, so as to obtain the current placement state of the portable electronic device 40 .

In addition, the storage unit 44 stores a touch position judgment module 442, a touch time judgment module 444, a touch information removal module 446 and an edge area setting module 448, wherein the touch position judgment module 442, the touch time judgment module 444, the touch information removal The module 446 is the same or similar to the touch position determination module 142 , the touch time determination module 144 , and the touch information removal module 146 in the foregoing embodiments, so its functions will not be repeated here. The difference from the previous embodiments is that in this embodiment, before the touch is detected, the edge area setting module 448 uses the gravity sensor 46 to detect the placement state of the portable electronic device 40, and then determines the subsequent location of the touch. edge area.

Specifically, FIG. 5 is a flowchart of a method for adjusting an edge region according to an embodiment of the present invention. Please refer to FIG. 5 , the method of this embodiment is applicable to the portable electronic device 40 in FIG. 4 , and the detailed steps of the touch detection method of the present invention are described below in conjunction with various components in the portable electronic device 40:

First, the portable electronic device 40 uses the gravity sensor 46 to detect its placement status (step S502), wherein the gravity sensor 46, for example, detects the components of the portable electronic device 40 in the three-axis direction, thereby judging the current position of the portable electronic device 40 The placement state is a horizontal state or an upright state.

Next, the edge area setting module 448 sets the edge area for subsequent determination of the touch position as the two edge areas of the touch screen 42 in the horizontal direction detected by the gravity sensor 46 (step S504) .

After the setting is completed, the edge area setting module 448 will continue to use the gravity sensor 46 to detect whether the placement state of the portable electronic device 40 is changed (step S506 ). Wherein, if the placement state of the portable electronic device 40 does not change, then maintain the originally set margin area; otherwise, if the placement state of the portable electronic device 40 changes, the margin area setting module 448 will use the margin area for judging the touch position The edge areas are adjusted to two edge areas of the touch screen 42 in the horizontal direction in the changed placement state (step S508 ).

For example, FIG. 6A and FIG. 6B are schematic diagrams of edge region settings according to an embodiment of the present invention. Please refer to FIG. 6A first. When the portable electronic device 60 uses a gravity sensor (not shown) to detect that its placement state is a horizontal state, it will display the left edge area 622 and the right edge area of the touch screen 62 at this time. 624 is set as an edge area for subsequently determining the touch position. Please refer to FIG. 6B again. When the portable electronic device 60 uses a gravity sensor (not shown) to detect that its placement state has changed to an upright state, it will change the left edge area 626 and the right edge area of the touch screen 62 at this time. 628 is set as an edge area for subsequently determining the touch position.

To sum up, the portable electronic device and its touch detection method of the present invention detects a touch located at the edge area of the touch screen according to the way in which the user holds the portable electronic device and operates it, and no other touches are detected during the continuous existence of the touch. In the case of a touch, it is determined that the touch is an accidental touch by the user, so that the relevant information of the touch is removed from the event triggered by it. Therefore, the malfunction caused by the user holding the portable electronic device can be avoided. The present invention also dynamically adjusts the above-mentioned edge area according to the placement state of the portable electronic device, so that it conforms to the area where accidental touches may occur in current user operations.

Exemplary embodiments of the present disclosure have been specifically shown and described above. It should be understood that the present disclosure is not limited to the disclosed embodiments, but on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. a kind of touch detecting method of portable electron device, suitable for the portable electron device with Touch Screen, its It is characterized in that, this method comprises the following steps：

Detected and touched using the Touch Screen, and judge whether the position of the touch falls the fringe region in the Touch Screen；

When the position of the touch falls in the fringe region, the accumulative touch persistently exists and the Touch Screen is not detected by other The time of touch, and judge whether the time exceedes preset time；And

When the time exceeding the preset time, the relevant information of the touch is removed in the event triggered from the touch, until Untill the touch terminates.

2. the touch detecting method of the portable electron device as described in claim 1, it is characterised in that the portable electronic Device further includes gravity sensor, and the step of whether fall the fringe region in the Touch Screen in the position for judging the touch Before, further include：

The placement state of the portable electron device is detected using the gravity sensor, wherein the placement state for traverse state and One of erectility；And

The Touch Screen is set under the placement state in two fringe regions in horizontal direction as the position for judging the touch The fringe region put.

3. the touch detecting method of the portable electron device as described in claim 2, it is characterised in that put setting this Under state the Touch Screen in two fringe regions in a horizontal direction be for the marginal zone for the position for judging the touch After the step of domain, further include：

Detect whether the placement state changes using the gravity sensor；And

When the placement state changes, the Touch Screen is in two in the horizontal direction under the placement state after adjustment change Fringe region is for the fringe region for the position for judging the touch.

4. the touch detecting method of the portable electron device as described in claim 1, it is characterised in that utilize the touch screen The step of curtain detection touch, includes：

Screen wake-up signal is detected under screen closed mode；And

When detecting the screen wake-up signal, start the touch of Touch Screen detection positioned at the fringe region, to determine Whether the relevant information of the touch is removed from the event that the touch is triggered.

5. the touch detecting method of the portable electron device as described in claim 1, it is characterised in that the fringe region is It is the region in pre-determined distance with a Touch Screen at least border.

A kind of 6. portable electron device, it is characterised in that including：

Touch location judgment module, judges whether the position of the touch detected by Touch Screen falls on the side of the Touch Screen Edge region；

Time judgment module is touched, when the touch location judgment module judges that the position of the touch falls in the fringe region, is tired out When counting that the touch persistently exists and the Touch Screen is not detected by the time of other touches, and judging whether the time exceedes default Between；And

Touch information remove module, when the touch time judgment module judges that the accumulative time exceedes the preset time, from The relevant information of the touch is removed in the event that the touch is triggered, untill the touch terminates.

7. the portable electron device as described in claim 6, it is characterised in that further include：

Fringe region setting module, the placement state of the portable electron device is detected using gravity sensor, heavy to set this Under the placement state that power inductor is detected the Touch Screen in two fringe regions in horizontal direction be for judging this The fringe region of the position of touch, the wherein placement state are one of traverse state and erectility.

8. the portable electron device as described in claim 7, it is characterised in that the fringe region setting module also utilizes should Gravity sensor detects whether the placement state changes, and when the placement state changes, the placement state after adjustment change The lower Touch Screen is for the fringe region for the position for judging the touch in two fringe regions in the horizontal direction.

9. the portable electron device as described in claim 6, it is characterised in that the touch location judgment module is also in screen When screen wake-up signal is detected under closed mode, start the touch of Touch Screen detection positioned at the fringe region, with certainly Fixed relevant information that the touch whether is removed from the event that the touch is triggered.

10. the portable electron device as described in claim 6, it is characterised in that the fringe region be and the Touch Screen An at least border is the region in pre-determined distance.