CN109343751B - Mobile terminal and driving method - Google Patents
Mobile terminal and driving method Download PDFInfo
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- CN109343751B CN109343751B CN201810969424.7A CN201810969424A CN109343751B CN 109343751 B CN109343751 B CN 109343751B CN 201810969424 A CN201810969424 A CN 201810969424A CN 109343751 B CN109343751 B CN 109343751B
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- touch sensing
- mobile terminal
- conductor line
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The embodiment of the invention discloses a mobile terminal and a driving method, relates to the technical field of communication, and aims to solve the problem that liquid attached to the edge area of a capacitive touch screen can reduce the accuracy of the mobile terminal in recognizing touch input of a user. The mobile terminal comprises a touch screen and a control module, wherein the touch screen comprises a conductor line and a plurality of touch sensing units; the control module is used for inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units at a touch scanning stage in a scanning cycle of the touch screen, and the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense the touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0. The mobile terminal can be applied in a scenario of recognizing a touch input of a user.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a mobile terminal and a driving method.
Background
With the development of communication technology, capacitive touch screens are applied more and more widely in mobile terminals, and liquid attached to the capacitive touch screens may cause the mobile terminals to misrecognize the liquid as touch input of users.
At present, a synchronous driving signal can be input to each capacitive sensor of a capacitive touch screen to solve the above problem of misrecognition. For example, as shown in fig. 1, when a liquid 10 is simultaneously attached to two capacitive sensors 11, since a potential difference between the two capacitive sensors 11 is 0, a capacitance value change does not occur between the two capacitive sensors 11, so that the mobile terminal does not misrecognize the liquid as a touch input of a user.
However, since a circle of ground lines is usually disposed at an edge area of the capacitive touch screen to solve an electrostatic discharge (ESD) problem, when liquid is attached to the edge area, charge transfer may occur between the ground lines and the capacitive sensors (that is, a potential difference may be generated between the ground lines and the capacitive sensors), so that the mobile terminal may erroneously recognize the liquid as a touch input of a user, and thus, the accuracy of the mobile terminal in recognizing the touch input of the user is reduced.
Disclosure of Invention
The embodiment of the invention provides a mobile terminal and a driving method, which are used for solving the problem that liquid attached to the edge area of a capacitive touch screen can reduce the accuracy of the mobile terminal in identifying touch input of a user.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a mobile terminal, where the mobile terminal includes a touch screen and a control module, and the touch screen includes a conductor line and a plurality of touch sensing units. The control module is used for inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units at a touch scanning stage in a scanning cycle of the touch screen, and the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense the touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0.
In a second aspect, an embodiment of the present invention provides a driving method applied to a mobile terminal, where the mobile terminal includes a touch screen, the touch screen includes a conductor line and a plurality of touch sensing units, and the method includes: in a touch scanning stage in a scanning cycle of the touch screen, inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units, wherein the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0.
In the embodiment of the invention, the mobile terminal can comprise a touch screen and a control module, wherein the touch screen can comprise a conductor line and a plurality of touch sensing units; the control module is used for inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units at a touch scanning stage in a scanning cycle of the touch screen, and the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense the touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0. According to the scheme, in the touch scanning stage in the scanning cycle of the touch screen, after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0, so that when liquid is attached to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is still 0, namely, charge transfer cannot occur between the conductor line and each touch sensing unit, therefore, the mobile terminal cannot mistakenly identify the liquid as the touch input of the user, and the accuracy of identifying the touch input of the user by the mobile terminal is improved.
Drawings
FIG. 1 is a schematic diagram of the prior art providing the use of synchronous drive signals to prevent misrecognition of liquid as a touch input;
fig. 2 is a schematic diagram of a mobile terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a touch sensing unit according to an embodiment of the present invention;
fig. 4 is a schematic view of a touch screen according to an embodiment of the present invention;
fig. 5 is a second schematic view of a touch screen according to an embodiment of the invention;
fig. 6 is a schematic diagram of inputting a driving signal to a conductor line according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a driving method according to an embodiment of the invention;
fig. 8 is a second schematic diagram of a driving method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.
The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first conductor line and the second conductor line, etc. are for distinguishing different conductor lines, and are not for describing a specific order of the conductor lines.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the embodiments of the present invention, unless otherwise specified, "a plurality" means two or more, for example, a plurality of touch sensing units means two or more touch sensing units, and a plurality of sensing strings means two or more sensing strings.
Some terms/nouns referred to in the embodiments of the present invention are explained below.
ESD: it is an objective natural phenomenon of static electricity generation. It should be noted that the static electricity in the embodiment of the present invention may be any static electricity that may exist in nature (e.g., human body static electricity or frictional static electricity).
Pulse signals: the term "signal" means a signal which is discontinuous on a time axis and has periodicity.
Capacitive touch screen: the capacitive screen for short is a touch screen formed by attaching a layer of transparent special metal conductive substance on the surface of glass. Specifically, when two layers of electrically conductive materials of the capacitive touch screen are not touched and are close to each other, electric fields between the two layers of electrically conductive materials interact with each other to form a capacitor. Because the finger is an electric conductor, when the finger touches the metal layer, a very small capacitor is formed between the electrode circuit of the touch screen and the finger, so that the frequency of an oscillator connected with the capacitor changes, and the mobile terminal can determine the touch position by measuring the frequency change.
The embodiment of the invention provides a mobile terminal and a driving method, wherein the mobile terminal can comprise a touch screen and a control module, and the touch screen can comprise a conductor line and a plurality of touch sensing units; the control module is used for inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units at a touch scanning stage in a scanning cycle of the touch screen, and the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense the touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0. According to the scheme, in the touch scanning stage in the scanning cycle of the touch screen, after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0, so that when liquid is attached to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is still 0, namely, charge transfer cannot occur between the conductor line and each touch sensing unit, therefore, the mobile terminal cannot mistakenly identify the liquid as the touch input of the user, and the accuracy of identifying the touch input of the user by the mobile terminal is improved.
The following describes a mobile terminal and a driving method according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 2, an embodiment of the present invention provides a mobile terminal 20. The mobile terminal 20 may include a touch screen 21 and a control module 22, and the touch screen 21 may include a conductor line 211 and a plurality of touch sensing units 212. The control module 22 is configured to input a driving signal to the conductor line 211 and each touch sensing unit 212 in the plurality of touch sensing units 212 at a touch scanning stage in a scanning cycle of the touch screen 21, where the driving signal of one touch sensing unit 212 is used to drive one touch sensing unit 212 to sense a touch input of a user. After a driving signal is input to the conductor line 211 and each touch sensing unit 212, a potential difference between the conductor line 211 and each touch sensing unit 212 is 0.
Optionally, in an embodiment of the present invention, the control module may be an Integrated Circuit (IC).
Optionally, in the embodiment of the present invention, the touch screen may be a capacitive touch screen. For specific description of the capacitive touch screen, reference may be made to the description of the capacitive touch screen in the above embodiments, and details are not repeated here.
Optionally, in an embodiment of the present invention, the touch screen may include a touch panel and a display panel, and the touch panel may be covered on the display panel. Specifically, after the touch panel detects a touch operation on or near the touch panel, the touch operation is transmitted to a control module in the mobile terminal to determine the type of the touch event, and then the control module provides a corresponding visual output on the display panel according to the type of the touch event.
Further, in an embodiment of the present invention, the touch panel may include a transparent conductive layer and a plurality of sensing strings disposed on the transparent conductive layer, and each of the plurality of sensing strings may include a plurality of touch sensing units. The transparent conductive layer may be made of tin oxide, indium oxide, zinc aluminum oxide, tin dioxide, indium oxide, or the like, and the touch sensing unit may be a touch sensor (for example, the touch sensor may be composed of a capacitor) or the like. It can be understood that the touch function of the touch panel can be realized by arranging the transparent conductive layer, and the visual output effect of the display panel can not be influenced.
For example, fig. 3 is a schematic diagram of a touch sensing unit according to an embodiment of the present invention. As shown in fig. 3 (a), a plurality of sensing strings, i.e., a sensing string a1, a sensing string a2, a sensing string A3, a sensing string B1, a sensing string B2, a sensing string B3, a sensing string B4, and a sensing string B5, may be disposed on the transparent conductive layer. For a clearer understanding of the sensing string shown in fig. 3 (a), an example of one sensing string B1 of a plurality of sensing strings is shown, and as shown in fig. 3 (B), the sensing string B1 may include 4 touch sensing units 212, and each of the touch sensing units may be configured to sense a touch input of a user.
Optionally, in the embodiment of the present invention, the conductor line may be a metal line. Illustratively, the metal wire may be a silver wire or a copper wire, etc. It can be understood that since the metal has conductivity, the metal wire may lead out unsafe charges such as static electricity, thereby improving the safety of the mobile terminal.
It should be noted that, in the embodiment of the present invention, the static electricity derived from the conductor line may be static electricity generated by the mobile terminal (for example, static electricity generated by a touch screen), static electricity generated between a user and the mobile terminal in a process of operating the mobile terminal by the user, or other possible static electricity. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited.
Furthermore, in the embodiment of the present invention, one end of the metal line may be connected to a polarizer in the mobile terminal, and the other end of the conductor line may be connected to a ground terminal of a main board in the mobile terminal. It can be understood that, by connecting the two ends of the conductor line with the polarized light sheet and the grounding end of the main board respectively, unsafe charges such as static electricity can be led out, thereby improving the safety of the mobile terminal.
Optionally, in the embodiment of the present invention, the scanning of the touch screen may include a plurality of scanning cycles, and each scanning cycle may include a touch scanning stage and a display scanning stage. In a touch scanning stage in a scanning period, the mobile terminal can input a first driving signal to a conductor line in the touch panel and each touch sensing unit in the touch sensing units so as to drive the touch sensing units to sense touch input of a user; in a display scanning phase in the scanning period, the mobile terminal may input a second driving signal to the display panel to drive the display panel to display. It can be understood that the touch function and the display function of the mobile terminal can be realized by setting the touch scanning stage and the display scanning stage.
Optionally, in this embodiment of the present invention, the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), and the embodiment of the present invention is not limited specifically.
Optionally, in this embodiment of the present invention, the mobile terminal may further include a radio frequency unit, a network module, an audio output unit, a sensor, an interface unit, a memory, a processor, a power supply, and other possible components. The method can be determined according to actual use requirements, and the embodiment of the invention is not limited.
The embodiment of the invention provides a mobile terminal which can comprise a touch screen and a control module, wherein the touch screen can comprise conductor lines and a plurality of touch sensing units. In the touch scanning stage in the scanning cycle of the touch screen, after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0, so that when liquid is attached to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is still 0, namely, no charge transfer occurs between the conductor line and each touch sensing unit, and therefore the mobile terminal cannot mistakenly identify the liquid as the touch input of the user, and the accuracy of the mobile terminal in identifying the touch input of the user is improved.
Optionally, in an embodiment of the present invention, the conductor lines may be disposed in an edge area of a touch screen of the mobile terminal, and the touch sensing units may be disposed in a center area of the touch screen. The central area may be an area of the touch screen other than the edge area.
For example, referring to fig. 3, as shown in fig. 4, a schematic diagram of a touch screen is provided in the embodiment of the present invention. The edge area of the touch screen 21 may be provided with a circle of conductor lines 211 (i.e., a bold line segment in fig. 4), and the center area of the touch screen 21 (i.e., the area of the touch screen other than the edge area) is provided with a plurality of touch sensing units 212.
In the embodiment of the invention, the conductor lines are arranged in the edge area of the touch screen, and the touch sensing units are arranged in the central area of the touch screen, so that unsafe charges such as static electricity and the like can be led out by using the conductor lines on the premise of not influencing the detection of the touch position and the visual output of a user by the mobile terminal, and the safety of the mobile terminal is improved.
Optionally, in an embodiment of the present invention, the conductor line may include a first conductor line and a second conductor line.
For example, fig. 5 is a schematic view of another touch screen provided in the embodiment of the present invention. As shown in fig. 5, the edge area of the touch screen 21 may be provided with a first conductor line 211a and a second conductor line 211b (i.e., the conductor line 211 may include the first conductor line 211a and the second conductor line 211b), and the center area of the touch screen 21 (i.e., the area of the touch screen other than the edge area) may be provided with a plurality of touch sensing units.
In the embodiment of the invention, the first conductor line and the second conductor line are arranged on the edge area of the touch screen, and the first conductor line and the second conductor line can respectively lead out unsafe charges such as static electricity and the like, so that the safety of the mobile terminal is improved.
Optionally, in the embodiment of the present invention, the control module 22 shown in fig. 2 may be further configured to control the conductor line to be grounded in a display scanning phase in the scanning period.
Furthermore, in a display scanning stage in the scanning period, the control module may not need to input a driving signal to each of the touch sensing units, so that power consumption of the mobile terminal may be reduced to a certain extent.
For example, fig. 6 is a schematic diagram of inputting a driving signal to a conductor line according to an embodiment of the present invention. As shown in fig. 6 (a) or fig. 6 (b), the scanning of the conductor lines by the mobile terminal may include a plurality of scanning cycles, and one scanning cycle may specifically include one touch scanning phase and one display scanning phase. Specifically, in the display scanning phase of the scanning period, the control module may control the conductor line to be grounded (at this time, the voltage on the conductor line is 0V), so that the possible damage to the mobile terminal caused by ESD may be prevented by grounding the conductor line. In a touch scan stage of the scan cycle, the control module may input a driving signal to the conductor lines and a driving signal to each touch sensing unit (not shown in fig. 6). In the touch scanning stage in the scanning period, if a finger contacts a touch screen (for example, a touch sensing unit of the touch screen), electric charge transfer occurs between the touch sensing unit of the touch screen and the finger (that is, a potential difference is generated between the touch sensing unit and the finger), so that the frequency of an oscillator connected with the touch sensing unit changes, and thus the mobile terminal can sense the touch input of a user by measuring the frequency change and determine the touch position of the user; however, if the liquid is attached between the conductor lines and the touch sensing units, no charge transfer occurs between the conductor lines of the touch screen and the touch sensing units (i.e., no potential difference is generated between the conductor lines and the touch sensing units), so that the mobile terminal does not misidentify the liquid as a touch input of the user.
It should be noted that, in the embodiment of the present invention, the proportion of one touch scanning phase in one scanning period and the proportion of one display scanning phase in one scanning period are not limited, and may be specifically set according to specific parameters such as the performance of the touch screen. Taking the example as shown in fig. 6 (a), assuming that one scanning period is 10 ms, the proportion of one display scanning phase in one scanning period may be 60% (i.e., the duration of the display scanning phase in one scanning period is 6 ms), and the proportion of one touch scanning phase in one scanning period may be 40% (i.e., the duration of the touch scanning phase in one scanning period is 4 ms).
Further, in the embodiment of the present invention, in the case where the conductor line is grounded, the voltage of the conductor line may be 0V.
Further, in the embodiments of the present invention, the mobile terminal may include a two-to-one multiplexer, and the two-to-one multiplexer may be configured to change a connection state of the conductor lines. Specifically, at the display scanning stage in the scanning period, the control module may control the conductor line to be grounded through the two-to-one multiplexer (for example, the control conductor line is connected to the ground terminal of the motherboard); in a touch scanning stage in a scanning period, the control module can be connected with a driving pin of the control module through the two-to-one multiplexer control conductor line, so that the control module can input a driving signal to the conductor line.
In the embodiment of the invention, the conductor line is grounded in the display scanning stage in the scanning period, and the driving signal is input to the conductor line and each touch sensing unit in the plurality of touch sensing units in the touch scanning stage in the scanning period, so that the problem that the ESD can possibly cause damage to the mobile terminal can be solved, and the problem that the mobile terminal mistakenly identifies liquid as the touch input of a user can also be solved.
Optionally, in an embodiment of the present invention, the scanning period may be 16.67 milliseconds or 8.33 milliseconds. Namely, the scanning frequency of the touch screen of the mobile terminal can be 60 hertz or 120 hertz.
In the embodiment of the invention, the scanning period is set to be 16.67 milliseconds or 8.33 milliseconds, so that the power consumption of the mobile terminal can be reduced to a certain extent under the condition that the effect that a user can see the image displayed by the touch screen is ensured.
Optionally, in this embodiment of the present invention, the driving signal may be a pulse signal.
Illustratively, the pulse signal may be a rectangular pulse signal, a triangular pulse signal, a spike pulse signal, or the like. The method and the device can be determined according to actual use requirements, and the embodiment of the invention is not limited.
It should be noted that, in the embodiment of the present invention, the period of the pulse signal is not specifically limited, and may be determined according to actual use requirements, for example, one touch scan phase in one scan period may include a period of 5 pulse signals or a period of 6 pulse signals. In addition, the amplitude value of the pulse signal is not particularly limited, and may be determined according to actual use requirements, for example, when the pulse signal is a rectangular pulse signal, the low level of the rectangular pulse signal may be 0V, and the high level of the rectangular pulse signal may be 3.6V or 2.8V, and the like.
In the embodiment of the invention, the driving signal is set to be the pulse signal, so that the touch sensing unit can be better driven to sense the touch input of the user, the mobile terminal can detect the touch input, and the mobile terminal can be triggered to execute the corresponding processing action.
As shown in fig. 7, an embodiment of the present invention provides a driving method. The method may be applied to a mobile terminal, which may include a touch screen, and the touch screen may include a conductor line and a plurality of touch sensing units. The method may include step 701 described below.
The driving signal of one touch sensing unit is used for driving the touch sensing unit to sense the touch input of a user. After a driving signal is input to the conductor line and each of the plurality of touch sensing units, a potential difference between the conductor line and each of the touch sensing units is 0.
For specific descriptions of the touch scanning stage, the conductor lines, and the touch sensing units, reference may be made to the description of the touch scanning stage, the conductor lines, and the touch sensing units in the above embodiments, and details are not repeated here.
In the driving method provided by the embodiments of the present invention, in the touch scanning stage in the scanning cycle of the touch screen, after the mobile terminal inputs the driving signal to the conductor line of the touch screen and each touch sensing unit of the touch screen, the potential difference between the conductor line and each touch sensing unit is 0, so when liquid adheres to the conductor line and a certain touch sensing unit, the potential difference between the conductor line and the certain touch sensing unit is still 0, that is, no charge transfer occurs between the conductor line and each touch sensing unit, and thus the mobile terminal does not misidentify the liquid as the touch input of the user, thereby improving the accuracy of the mobile terminal in identifying the touch input of the user.
Optionally, with reference to fig. 7 and as shown in fig. 8, the driving method provided in the embodiment of the present invention further includes the following step 702.
For the specific description of the display scanning phase, reference may be made to the description of the display scanning phase in the foregoing embodiment, and details are not repeated here.
Optionally, in the embodiment of the present invention, the mobile terminal may include a two-to-one multiplexer, and the two-to-one multiplexer may be configured to change the connection state of the conductor lines. Specifically, at the display scanning stage in the scanning period, the control module may control the conductor line to be grounded through the two-to-one multiplexer (for example, the control conductor line is connected to the ground terminal of the motherboard); in a touch scanning stage in a scanning period, the control module can be connected with a driving pin of the control module through the two-to-one multiplexer control conductor line, so that the control module can input a driving signal to the conductor line.
Optionally, in this embodiment of the present invention, if the conductor lines include a first conductor line and a second conductor line, step 702 may specifically include: in a display scanning phase in a scanning period, the mobile terminal controls the first conductor line and the second conductor line to be grounded.
It should be noted that, in the embodiment of the present invention, the above-mentioned fig. 8 is an example of the mobile terminal performing step 701 first and then performing step 702, which does not limit the embodiment of the present invention at all. It is understood that, in actual implementation, the mobile terminal may also perform step 702 first and then perform step 701. The method can be determined according to actual use requirements, and the embodiment of the invention is not particularly limited.
In the embodiment of the invention, the mobile terminal inputs the grounding signal to the conductor line in the display scanning stage in the scanning period, and the mobile terminal inputs the driving signal to the conductor line in the touch scanning stage in the scanning period, so that the problem that the ESD can possibly damage the mobile terminal can be solved, and the problem that the terminal mistakenly identifies the liquid as the touch input of the user can also be solved, namely the safety of the mobile terminal and the accuracy rate of the mobile terminal for identifying the touch input of the user are improved.
Optionally, in an embodiment of the present invention, the scanning period is 16.67 milliseconds or 8.33 milliseconds.
In the embodiment of the invention, the scanning period is set to be 16.67 milliseconds or 8.33 milliseconds, so that the power consumption of the mobile terminal can be reduced to a certain extent under the condition that the user can see the image displayed by the touch screen.
Optionally, in this embodiment of the present invention, the driving signal may be a pulse signal.
Illustratively, the pulse signal may be a rectangular pulse signal, a triangular pulse signal, a pulse signal, or the like. The method and the device can be determined according to actual use requirements, and the embodiment of the invention is not limited.
In the embodiment of the invention, the driving signal is set to be the pulse signal, so that the touch sensing unit can be better driven to sense the touch input of the user, the mobile terminal can detect the touch input, and the mobile terminal can be triggered to execute the corresponding processing action.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A mobile terminal is characterized by comprising a touch screen and a control module, wherein the touch screen comprises conductor lines and a plurality of touch sensing units; the conductor lines are arranged in the edge area of the touch screen, the touch sensing units are arranged in the central area of the touch screen, and the central area is an area on the touch screen except the edge area;
the control module is used for inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units at a touch scanning stage in a scanning cycle of the touch screen, and the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense the touch input of a user; after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0, and the conductor line is used for leading out static electricity.
2. The mobile terminal of claim 1, wherein the control module is further configured to control the conductor line to be grounded during a display scan phase of the scan cycle.
3. The mobile terminal of claim 2, wherein the scan period is 16.67 milliseconds or 8.33 milliseconds.
4. A mobile terminal according to any of claims 1 to 3, wherein the drive signal is a pulsed signal.
5. The mobile terminal of claim 4, wherein the pulse signal is a rectangular pulse signal.
6. A driving method is applied to a mobile terminal, the mobile terminal comprises a touch screen, the touch screen comprises conductor lines and a plurality of touch sensing units, the conductor lines are arranged in an edge area of the touch screen, the touch sensing units are arranged in a central area of the touch screen, the central area is an area on the touch screen except the edge area, and the method comprises the following steps:
in a touch scanning stage in a scanning cycle of the touch screen, inputting a driving signal to the conductor line and each touch sensing unit in the plurality of touch sensing units, wherein the driving signal of one touch sensing unit is used for driving the one touch sensing unit to sense touch input of a user;
after the driving signal is input to the conductor line and each touch sensing unit, the potential difference between the conductor line and each touch sensing unit is 0, and the conductor line is used for leading out static electricity.
7. The method of claim 6, further comprising:
and controlling the conductor lines to be grounded in a display scanning phase in the scanning period.
8. The method of claim 7, wherein the scan period is 16.67 milliseconds or 8.33 milliseconds.
9. The method according to any one of claims 6 to 8, wherein the drive signal is a pulsed signal.
10. The method of claim 9, wherein the pulse signal is a rectangular pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810969424.7A CN109343751B (en) | 2018-08-23 | 2018-08-23 | Mobile terminal and driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810969424.7A CN109343751B (en) | 2018-08-23 | 2018-08-23 | Mobile terminal and driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109343751A CN109343751A (en) | 2019-02-15 |
| CN109343751B true CN109343751B (en) | 2022-03-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103713784A (en) * | 2013-04-12 | 2014-04-09 | 深圳市汇春科技有限公司 | Capacitive touch detecting circuit, device and identification method capable of preventing mistakes caused by stains |
| CN104133600A (en) * | 2013-05-02 | 2014-11-05 | 义隆电子股份有限公司 | Liquid identification method of touch panel |
| CN105335009A (en) * | 2015-12-03 | 2016-02-17 | 深圳磨石科技有限公司 | Touch display device and electronic device |
| JP2017021863A (en) * | 2016-11-01 | 2017-01-26 | 三菱電機株式会社 | Touch panel and display device |
| CN106527834A (en) * | 2016-11-09 | 2017-03-22 | 厦门天马微电子有限公司 | Touch display panel, driving method thereof and touch display device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713784A (en) * | 2013-04-12 | 2014-04-09 | 深圳市汇春科技有限公司 | Capacitive touch detecting circuit, device and identification method capable of preventing mistakes caused by stains |
| CN104133600A (en) * | 2013-05-02 | 2014-11-05 | 义隆电子股份有限公司 | Liquid identification method of touch panel |
| CN105335009A (en) * | 2015-12-03 | 2016-02-17 | 深圳磨石科技有限公司 | Touch display device and electronic device |
| JP2017021863A (en) * | 2016-11-01 | 2017-01-26 | 三菱電機株式会社 | Touch panel and display device |
| CN106527834A (en) * | 2016-11-09 | 2017-03-22 | 厦门天马微电子有限公司 | Touch display panel, driving method thereof and touch display device |
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