CN107247527B - Touch method, device and equipment - Google Patents
Touch method, device and equipment Download PDFInfo
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- CN107247527B CN107247527B CN201710386275.7A CN201710386275A CN107247527B CN 107247527 B CN107247527 B CN 107247527B CN 201710386275 A CN201710386275 A CN 201710386275A CN 107247527 B CN107247527 B CN 107247527B
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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Abstract
The disclosure relates to a touch method, a touch device and a terminal device, wherein the method is applied to the terminal device, the terminal device comprises a touch panel, the touch panel comprises a first touch electrode layer, and the method comprises the following steps: detecting whether touch operation on the first touch electrode layer exists or not; if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage; determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure; and executing corresponding control operation according to the determined touch pressure. The touch panel and the touch control method thereof can reduce the cost of the touch panel and improve the accuracy of touch control pressure acquisition.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a touch method, a touch device and a touch device.
Background
With the function of the terminal device becoming diversified, the pressure touch sensing technology is increasingly applied to the terminal device. The terminal equipment can call different functions by sensing the pressure of the user pressing the touch screen.
In the related art, the implementation of pressure touch includes two ways, one is that a two-layer structure is included in the touch screen, that is, a layer of Indium Tin Oxide (ITO) is respectively arranged on two sides of a liquid crystal box, a layer of ITO is also manufactured on the Color Film (CF) side to serve as a sensing unit for deformation during pressure touch sensing, when pressure touch sensing is generated, the thickness of the liquid crystal box changes, and the capacitance value on the ITO on the CF side also changes, so that touch pressure can be detected. The other is that a backplate is separately arranged below the backlight layer of the module, a pressure touch sensing capacitive sensing unit is arranged on the backplate, and when the touch screen is deformed, the magnitude of touch pressure can be detected by detecting the change of the capacitance value of the backplate.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a touch method, device and apparatus.
According to a first aspect of the embodiments of the present disclosure, there is provided a touch method, which is applied to a terminal device, the terminal device including a touch panel including a first touch electrode layer, the method including:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
and executing corresponding control operation according to the determined touch pressure.
On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved.
With reference to the first aspect, in a first possible implementation manner of the first aspect, before determining, according to a mapping relationship between preset voltage rise time and touch pressure, a touch pressure corresponding to the voltage rise time, the method further includes:
and establishing a mapping relation between the voltage rising time and the touch pressure.
Due to the fact that the mapping relation between the voltage rise time and the touch pressure is established, the touch pressure obtaining efficiency can be improved.
With reference to the first aspect, in a second possible implementation manner of the first aspect, the obtaining a voltage rise time corresponding to the touch operation includes:
acquiring a voltage value corresponding to the touch operation through an analog-to-digital converter (ADC), wherein the ADC is electrically connected with the first touch electrode layer;
and acquiring the voltage rise time according to the voltage value.
Because the voltage value corresponding to the touch operation is acquired through the ADC to acquire the voltage rise time, the acquisition process of the voltage rise time is simpler and more convenient.
With reference to the first aspect and any one of the first to the second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the touch panel further includes a second touch electrode layer, and the first touch electrode layer and the second touch electrode layer are connected by an anisotropic conductive adhesive.
Due to the fact that the second touch electrode layer connected with the first touch electrode layer through the anisotropic conductive adhesive is added in the touch panel, time for changing the voltage of the first touch electrode layer from the reference voltage to the preset voltage is obviously different along with different touch pressures, and therefore sensitivity and accuracy of touch pressure obtaining can be improved.
According to a second aspect of the embodiments of the present disclosure, there is provided a touch device, including:
the detection module is configured to detect whether touch operation is performed on the first touch electrode layer;
the acquisition module is configured to acquire voltage rise time corresponding to the touch operation when the detection module detects that the touch operation on the first touch electrode layer exists; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
the determining module is configured to determine touch pressure corresponding to the voltage rise time acquired by the acquiring module according to a mapping relation between preset voltage rise time and touch pressure;
and the execution module is configured to execute corresponding control operation according to the touch pressure determined by the determination module.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the apparatus further includes:
an establishing module configured to establish a mapping relationship between the voltage rise time and a touch pressure.
With reference to the second aspect, in a second possible implementation manner of the second aspect, the obtaining module includes:
the acquisition sub-module is configured to acquire a voltage value corresponding to touch operation through an analog-to-digital converter (ADC), and the ADC is electrically connected with the first touch electrode layer;
the acquisition submodule is configured to acquire the voltage rise time according to the voltage value acquired by the acquisition submodule.
With reference to the second aspect and any one possible implementation manner of the second aspect from the first aspect to the second aspect of the second aspect, in a third possible implementation manner of the second aspect, the touch panel further includes a second touch electrode layer, and the first touch electrode layer and the second touch electrode layer are connected by an anisotropic conductive adhesive.
According to a third aspect of the embodiments of the present disclosure, there is provided a touch device, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
and executing corresponding control operation according to the determined touch pressure.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a terminal device, enable the terminal device to perform the method of the first aspect described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
when the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation, wherein the voltage rise time is the time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, and determining touch pressure corresponding to the voltage rise time according to a mapping relation between the preset voltage rise time and the touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method of touch control according to an exemplary embodiment;
FIG. 2 is a schematic diagram of voltage rise times under different touch pressures;
FIG. 3 is a flow chart illustrating a method of touch control according to another exemplary embodiment;
FIG. 4 is a schematic diagram of a stacking structure of a touch panel;
FIG. 5 is a schematic structural diagram of a touch panel;
FIG. 6 is a schematic structural diagram of another touch panel;
FIG. 7 is a block diagram illustrating a touch device in accordance with an exemplary embodiment;
FIG. 8 is a block diagram illustrating a touch device in accordance with another exemplary embodiment;
FIG. 9 is a block diagram illustrating a touch device in accordance with yet another exemplary embodiment;
FIG. 10 is a block diagram illustrating an entity of a terminal device in accordance with an example embodiment;
FIG. 11 is a block diagram illustrating a touch device according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the related art, when pressure touch is implemented, two ways are usually used, one way is to include a two-layer structure inside a touch screen, namely, two layers of ITO are respectively arranged on two sides of a liquid crystal box, and one layer of ITO is also manufactured on a CF side to serve as a sensing unit for deformation during pressure touch sensing. The other is that a backplate is separately arranged below the backlight layer of the module, a pressure touch sensing capacitive sensing unit is arranged on the backplate, and when the touch screen is deformed, the magnitude of touch pressure can be detected by detecting the change of the capacitance value of the backplate. However, in the related art, in both of the above two methods, an additional physical layer or an ITO sensing layer is required to obtain the touch pressure, so that the manufacturing cost of the touch screen is high.
The touch method, the touch device and the touch equipment provided by the embodiment of the disclosure aim to solve the technical problem that the manufacturing cost of the touch screen in the related art is high, and a specific implementation manner is shown in the following embodiments.
The touch method, the touch device and the touch equipment provided by the embodiments of the present disclosure are described in detail with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a touch method according to an exemplary embodiment, and as shown in fig. 1, the touch method according to the present embodiment is applied to a terminal device, which is a device having a touch panel, such as a mobile phone, a Personal Digital Assistant (PDA), a notebook computer, and the like, wherein the touch panel includes a first touch electrode layer (Vcom). The touch control method comprises the following steps.
In step S11, it is detected whether there is a touch operation on the first touch electrode layer.
In step S12, if a touch operation on the first touch electrode layer is detected, acquiring a voltage rise time corresponding to the touch operation; the voltage rise time is a time for the voltage of the first touch electrode layer to change from the reference voltage to a preset voltage.
In step S13, a touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between a preset voltage rise time and the touch pressure.
In step S14, a corresponding control operation is performed according to the determined touch pressure.
In the related art, when the pressure touch detection is implemented, a back plate needs to be separately arranged below a backlight layer of a Module, a sensing circuit is arranged on the back plate, and when a touch screen deforms, a terminal device can determine the magnitude of touch pressure by detecting the change of capacitance value of the back plate.
In view of this problem, in the embodiment of the present disclosure, for a terminal device having a touch panel, a touch pressure may be determined by acquiring a voltage rise time corresponding to a touch operation of a user on a first touch electrode layer. In a specific implementation process, when a user performs a touch operation on a first touch electrode layer in a touch panel of a terminal device, a voltage of the first touch electrode layer will change. When the terminal device detects that the user has touch operation on the first touch electrode layer, the voltage rise time corresponding to the touch operation is obtained. The voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, and the preset voltage is generally a highest voltage. For example, if the reference voltage is 0V and the preset voltage is 5V, when the terminal device detects that the user performs a touch operation on the touch panel, the terminal device will obtain a time when the voltage of the first touch electrode layer rises from 0V to 5V. Optionally, in order to improve the accuracy of obtaining the voltage rise time, an interval from the reference voltage to the preset voltage may be set, and the rise time of the voltage value of the first touch electrode layer from 5% to 95% or from 10% to 90% may be collected as the voltage rise time. For example: if the reference voltage is 0V and the preset voltage is 5V, the time when the voltage of the first touch electrode layer rises from 0V to 4.75V or from 0V to 4.5V may be collected. In addition, the reference voltage and the preset voltage may be selected according to actual situations, and specific values of the reference voltage and the preset voltage are not particularly limited herein.
After the voltage rise time corresponding to the touch operation is obtained, the touch pressure corresponding to the voltage rise time is obtained according to the mapping relation between the voltage rise time and the touch pressure stored in the database. Generally, the voltage rise time is shorter as the touch pressure is larger, and fig. 2 is a schematic diagram of the voltage rise time under different touch pressures, in fig. 2, the horizontal axis represents time, and the vertical axis represents voltage, when the touch pressure is smaller, the time for the voltage of the first touch electrode layer to change from the reference voltage to the preset voltage is longer, as shown by a line 1 in fig. 2, and when the touch pressure is larger, the time for the voltage of the first touch electrode layer to change from the reference voltage to the preset voltage is shorter, as shown by a line 2 in fig. 2.
After determining the touch pressure, the terminal device executes a corresponding control operation according to the determined touch pressure, specifically, if the touch pressures are different, the terminal device executes a non-executable control operation, for example: if the touch pressure of a certain icon on the user touch interface is low, an operation of opening an application program corresponding to the icon may be executed, and if the touch pressure of a certain icon on the user touch interface is high, an operation of deleting an application program corresponding to the icon may be executed.
In addition, the terminal device may determine whether the user performs a touch operation on the first touch electrode layer according to the value of the voltage on the first touch electrode layer, and if the value of the voltage on the first touch electrode layer changes, it may be determined that the user may perform a touch operation on the first touch electrode layer.
In the touch method of this embodiment, when a touch operation on the first touch electrode layer is detected, a voltage rise time corresponding to the touch operation is obtained, where the voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, a touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between the preset voltage rise time and the touch pressure, and a corresponding control operation is executed according to the determined touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved.
Optionally, on the basis of the embodiment shown in fig. 1, before determining the touch pressure corresponding to the voltage rise time according to a preset mapping relationship between the voltage rise time and the touch pressure, the method further includes establishing a mapping relationship between the voltage rise time and the touch pressure.
Specifically, data comparison and correction can be performed on each batch of touch panels, and the mapping relationship between the voltage rise time and the touch pressure is stored in the database through multiple tests. In a specific implementation process, when the touch pressures are respectively in the magnitudes of 0, 100g, 200g, 300g … …, the corresponding voltage rise times may be stored in the database. Of course, the voltage rise times corresponding to the magnitudes of 0, 1g, 2g, and 3g … … may be stored, or the voltage rise times corresponding to the respective touch pressures may be stored in the database in steps of 50 g. After the mapping relationship between the voltage rise time and the touch pressure is established, the touch pressure corresponding to the voltage rise time can be acquired according to the acquired voltage rise time.
In the method for obtaining touch pressure according to this embodiment, when a touch operation on the first touch electrode layer is detected, a voltage rise time corresponding to the touch operation is obtained, where the voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, and then the touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between the preset voltage rise time and the touch pressure, and a corresponding control operation is executed according to the determined touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved. In addition, by establishing a mapping relation between the voltage rise time and the touch pressure, the efficiency of acquiring the touch pressure can be improved.
Fig. 3 is a flowchart illustrating a touch method according to another exemplary embodiment, where the method is used in a terminal device, and the present embodiment describes in detail how to obtain an embodiment of a voltage rise time corresponding to a touch operation based on the embodiment illustrated in fig. 1, and as illustrated in fig. 3, the touch method includes the following steps:
in step S31, it is detected whether there is a touch operation on the first touch electrode layer.
In step S32, if a touch operation on the first touch electrode layer is detected, an Analog-to-Digital Converter (ADC) is used to acquire a voltage value corresponding to the touch operation.
In this embodiment, the ADC is electrically connected to the first touch electrode layer, and when the terminal device detects that a user performs a touch operation on the first touch electrode layer in the touch panel, after measurement and correction, the ADC obtains a voltage value corresponding to the touch operation according to a waveform of the acquired voltage of the first touch electrode layer.
In step S33, a voltage rise time is acquired from the voltage value.
In this embodiment, after the voltage value corresponding to the touch operation is collected, the time for the voltage of the first touch electrode layer of the touch panel to rise from the reference voltage to the preset voltage can be known. The touch pressures are different, and the corresponding voltage rise times are also different, for example, the larger the touch pressure is, the shorter the corresponding voltage rise time is, and the smaller the touch pressure is, the longer the corresponding voltage rise time is.
In step S34, a touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between a preset voltage rise time and the touch pressure.
In step S35, a corresponding control operation is performed according to the determined touch pressure.
In the method for obtaining touch pressure according to this embodiment, when a touch operation on the first touch electrode layer is detected, a voltage rise time corresponding to the touch operation is obtained, where the voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, and then the touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between the preset voltage rise time and the touch pressure, and a corresponding control operation is executed according to the determined touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved. In addition, the voltage value corresponding to the touch operation is acquired through the ADC to acquire the voltage rise time, so that the acquisition process of the voltage rise time is simpler and more convenient.
Optionally, on the basis of the foregoing embodiment, the touch panel further includes a second touch electrode layer, wherein the first touch electrode layer and the second touch electrode layer are connected by an anisotropic conductive adhesive.
Specifically, fig. 4 is a schematic diagram of a stacking structure of a touch panel, and as shown in fig. 4, the touch panel of the terminal device in the embodiment of the present disclosure includes six layers, which are, in order from top to bottom: the touch panel comprises a CF layer, a liquid crystal layer, a first touch electrode layer, anisotropic conductive adhesive, a second touch electrode layer and a Thin Film Transistor (TFT) array, wherein the anisotropic conductive Film has conductivity in the Film thickness direction, has insulation in the Film surface direction, increases the conductivity when being squeezed and becomes non-conductive when the squeezing action disappears, so that the first touch electrode layer and the second touch electrode layer are conducted when a user touches the touch panel. In addition, the first touch electrode layer is located above the anisotropic conductive adhesive, the second touch electrode layer is located below the anisotropic conductive adhesive, in practical application, the anisotropic conductive adhesive is introduced into the touch panel structure, taking an FIC touch manner as an example, a layer of the anisotropic conductive adhesive is laid on the second touch electrode layer sensor, the anisotropic conductive adhesive is conductive in the thickness direction, the second touch electrode layer is sputtered on the other side of the anisotropic conductive adhesive, and the layer of the electrodes can be a whole.
In addition, after the first touch electrode layer and the second touch electrode layer are connected through the anisotropic conductive film, the first touch electrode layer close to the CF may be selected as a touch sensing layer, and the second touch electrode layer close to the backlight may be selected as a pressure touch sensing layer, wherein the sensing structure of the second touch electrode layer may be the same as the first touch electrode layer or may be a single integrated sensing unit, and is led to an Integrated Circuit (IC) through a touch panel, that is, in the second touch electrode layer, the front ITO may be used as one sensing layer, or the touch electrode layer may be divided into structures corresponding to the sensing structure of the first touch electrode layer.
In addition, the second touch electrode layer may be selected not to be divided by the sensor (sensor), and a small voltage difference may be set between the first touch electrode layer and the second touch electrode layer, for example, the voltage of the second touch electrode layer is slightly larger, when there is a touch pressure, the first touch electrode layer and the second touch electrode layer will be turned on, at this time, the time for the voltage of the first touch electrode layer to change from the reference voltage to the preset voltage is obviously different along with the difference of the touch pressure, so that the sensitivity and accuracy of obtaining the touch pressure may be improved.
In practical application, signals sent to the touch sensing layer and the pressure touch sensing layer by a processor of the terminal device are modulation signals with the same frequency, and only the voltage value of the two signals is different. When detecting whether touch operation exists on the touch panel or detecting touch pressure, the processor only collects signals serving as touch sensing layers and serves as feedback signals for touch control and pressure touch control, and therefore whether touch operation exists on the touch panel or touch pressure is detected.
Next, a detailed description will be given of a specific structure of the touch panel including the first touch electrode layer and the second touch electrode layer.
Fig. 5 is a schematic structural diagram of a touch panel, and fig. 6 is a schematic structural diagram of another touch panel. As shown in fig. 5 and 6, the touch panel may be used in a display device (e.g., a smart phone, a tablet computer, a smart television, etc.), including: a first substrate 11 and a second substrate 12, and a liquid crystal layer 13 disposed between the first substrate 11 and the second substrate 12.
In one possible embodiment, for example, as shown in fig. 3, the first substrate 11 may be an array substrate, and the second substrate 12 may be a color filter substrate.
In another possible embodiment, for example, as shown in fig. 4, the first substrate 11 may be a color filter substrate, and the second substrate 12 may be an array substrate.
The array substrate comprises a first substrate, a gate insulating layer arranged on one side of the first substrate, and a Thin Film Transistor (TFT) arranged on one side, far away from the substrate, of the gate insulating layer. The touch panel is further provided with a passivation layer on one side of the thin film transistor, which is far away from the gate insulating layer, and a pixel electrode 17 on one side of the passivation layer, which is far away from the thin film transistor.
The color film substrate comprises a second substrate, a black matrix arranged on one side of the second substrate, and a color resistance layer arranged between the color film substrate and the matrix, for example, the color film substrate comprises a red color resistance layer, a green color group layer and a blue color resistance layer.
In one embodiment, for example, as shown In fig. 3, the touch panel may be an ADS (Advanced Super dimension Switching) or IPS (In-Plane Switching) structure, and the pixel electrode and the common electrode for driving liquid crystal to deflect are located on the same side of the liquid crystal layer, where the pixel electrode and the common electrode may be planar electrodes or strip electrodes, and may be specifically selected according to needs.
In one embodiment, such as shown in fig. 4, the touch panel may be a TN (Twisted Nematic) structure, and the pixel electrodes and the common electrodes for driving the liquid crystal to deflect are located on different sides of the liquid crystal layer.
The anisotropic conductive adhesive 15 is disposed on a side of the first touch electrode layer 14 close to the liquid crystal layer 13, a conductive direction is perpendicular to the first touch electrode layer 14 (i.e., the conductive direction is along a thickness direction), and the conductivity increases with an increase of the touch pressure.
And the second touch electrode layer 16 is arranged on one side of the anisotropic conductive adhesive 15 close to the liquid crystal layer 13.
In one embodiment, the first touch electrode layer and the second touch electrode layer may be made of a transparent conductive material, such as ITO (indium tin oxide).
In one embodiment, the structures of the first touch electrode layer and the second touch electrode layer may be the same or different. For example, the first touch electrode may include a plurality of sub-electrodes forming an 18 by 30 matrix, and the second touch electrode may be configured as an 18 by 30 matrix or a planar electrode.
In one embodiment, since the conductivity of the anisotropic conductive adhesive increases with the increase of the touch pressure, and the anisotropic conductive adhesive is located between the first touch electrode layer and the second touch electrode layer, the greater the pressure makes the conductivity of the anisotropic conductive adhesive greater, and the charges of the first touch electrode layer and the second touch electrode layer tend to be the same.
And a processing unit (not shown in the figure), connected to the first touch electrode layer 14 and/or the second touch electrode layer 16, configured to determine a touch pressure applied to the touch panel according to a first voltage of the first touch electrode layer 14 and/or a second voltage of the second touch electrode layer 16.
In one embodiment, the driving integrated circuit for transmitting the electrical signal to the first touch electrode layer and the second touch electrode layer, and the processing unit for determining the pressure may be the same processor or different processors.
In one embodiment, since only one layer of anisotropic conductive adhesive is separated between the first touch electrode layer and the second touch electrode layer, the mutual inductance between the two layers of electrodes is stronger than that of the related art structure, so that more charges can be stored in the two electrode layers, and further, when pressure is applied, the amount of change of the charges is larger than that of the related art structure, so that the first voltage and the second voltage are also changed more accordingly.
For example, in the related art structure, in the case of a pressure change of 0.1N, a voltage change of 0.0001V is difficult to acquire and accurately identify due to an excessively small voltage change, which easily results in erroneous calculation of the pressure. According to the embodiment, under the condition that the pressure changes by 0.1N, the voltage can change by 0.01V, and larger voltage change quantity is easier to collect and identify, so that the touch pressure is determined, and the accuracy of determining the touch pressure can be improved.
In the method for obtaining touch pressure according to this embodiment, when a touch operation on the first touch electrode layer is detected, a voltage rise time corresponding to the touch operation is obtained, where the voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, and then the touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between the preset voltage rise time and the touch pressure, and a corresponding control operation is executed according to the determined touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved. In addition, the second touch electrode layer connected with the first touch electrode layer through the anisotropic conductive adhesive is added in the touch panel, so that the time for changing the voltage of the first touch electrode layer from the reference voltage to the preset voltage is obviously different along with the difference of the touch pressure, and the sensitivity and the accuracy of obtaining the touch pressure can be improved.
Fig. 7 is a block diagram illustrating a touch device according to an exemplary embodiment, and as shown in fig. 7, the touch device includes a detection module 11, an acquisition module 12, a determination module 13, and an execution module 14.
The detection module 11 is configured to detect whether there is a touch operation on the first touch electrode layer;
the obtaining module 12 is configured to, when the detecting module 11 detects that there is a touch operation on the first touch electrode layer, obtain a voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
the determining module 13 is configured to determine, according to a mapping relationship between preset voltage rise time and touch pressure, touch pressure corresponding to the voltage rise time acquired by the acquiring module 12;
and the execution module 14 is configured to execute a corresponding control operation according to the touch pressure determined by the determination module 13.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
As shown in fig. 8, fig. 8 is a block diagram of a touch device according to another exemplary embodiment, and on the basis of the embodiment shown in fig. 7, the device further includes: a module 15 is established.
The establishing module 15 is configured to establish a mapping relationship between the voltage rise time and the touch pressure.
As shown in fig. 9, fig. 9 is a block diagram of a touch device according to another exemplary embodiment, and on the basis of the embodiment shown in fig. 7, the obtaining module 12 includes: an acquisition submodule 121 and an acquisition submodule 122;
the acquisition sub-module 121 is configured to acquire a voltage value corresponding to a touch operation through an analog-to-digital converter ADC, where the ADC is electrically connected to the first touch electrode layer;
the obtaining submodule 122 is configured to obtain the voltage rise time according to the voltage value collected by the collecting submodule 121.
Optionally, the touch panel further includes a second touch electrode layer, and the first touch electrode layer and the second touch electrode layer are connected by an anisotropic conductive adhesive.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Having described the internal functional modules and structural schematic of the terminal device, fig. 10 is a block diagram of an entity of the terminal device shown according to an exemplary embodiment, and referring to fig. 10, the terminal device may be specifically implemented as:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
and executing corresponding control operation according to the determined touch pressure.
In the touch method of this embodiment, when a touch operation on the first touch electrode layer is detected, a voltage rise time corresponding to the touch operation is obtained, where the voltage rise time is a time when the voltage of the first touch electrode layer changes from a reference voltage to a preset voltage, a touch pressure corresponding to the voltage rise time is determined according to a mapping relationship between the preset voltage rise time and the touch pressure, and a corresponding control operation is executed according to the determined touch pressure. On the basis of not additionally adding a physical layer or an ITO sensing layer, the size of the touch pressure can be determined only by acquiring the time of the voltage of the first touch electrode layer changing from the reference voltage to the preset voltage, so that the cost of the touch panel can be reduced, and the sensitivity and the accuracy of touch pressure acquisition can be improved.
FIG. 11 is a block diagram illustrating a touch device according to an exemplary embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 11, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operation at the device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, sensor assembly 814 may detect an on/off status of device 800, the relative positioning of components, such as a display and keypad of apparatus 800, the change in position of apparatus 800 or a component of apparatus 800, the presence or absence of user contact with apparatus 800, the orientation or acceleration/deceleration of apparatus 800, and the change in temperature of apparatus 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium having instructions therein which, when executed by a processor of a terminal device, enable the terminal device to perform a method of touch control, the method comprising:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
and executing corresponding control operation according to the determined touch pressure.
Before determining the touch pressure corresponding to the voltage rise time according to a mapping relationship between preset voltage rise time and touch pressure, the method further includes:
and establishing a mapping relation between the voltage rising time and the touch pressure.
Wherein the obtaining of the voltage rise time corresponding to the touch operation includes:
acquiring a voltage value corresponding to the touch operation through an analog-to-digital converter (ADC), wherein the ADC is electrically connected with the first touch electrode layer;
and acquiring the voltage rise time according to the voltage value.
The touch panel further comprises a second touch electrode layer, and the first touch electrode layer is connected with the second touch electrode layer through anisotropic conductive adhesive.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (6)
1. The touch method is applied to terminal equipment, the terminal equipment comprises a touch panel, and the touch panel comprises a first touch electrode layer, anisotropic conductive glue and a second touch electrode layer; the first touch electrode layer and the second touch electrode layer are connected through the anisotropic conductive film, and when a user performs touch operation on the first touch electrode layer, the voltage of the first touch electrode layer changes; the method comprises the following steps:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
executing corresponding control operation according to the determined touch pressure;
wherein the obtaining of the voltage rise time corresponding to the touch operation includes:
acquiring a voltage value corresponding to the touch operation through an analog-to-digital converter (ADC), wherein the ADC is electrically connected with the first touch electrode layer;
and acquiring the voltage rise time according to the voltage value.
2. The method according to claim 1, wherein before determining the touch pressure corresponding to the voltage rise time according to a mapping relationship between a preset voltage rise time and the touch pressure, the method further comprises:
and establishing a mapping relation between the voltage rising time and the touch pressure.
3. A touch device is applied to terminal equipment, wherein the terminal equipment comprises a touch panel, and the touch panel comprises a first touch electrode layer, anisotropic conductive adhesive and a second touch electrode layer; the first touch electrode layer and the second touch electrode layer are connected through the anisotropic conductive film, and when a user performs touch operation on the first touch electrode layer, the voltage of the first touch electrode layer changes; the method comprises the following steps:
the detection module is configured to detect whether touch operation is performed on the first touch electrode layer;
the acquisition module is configured to acquire voltage rise time corresponding to the touch operation when the detection module detects that the touch operation on the first touch electrode layer exists; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
the determining module is configured to determine touch pressure corresponding to the voltage rise time acquired by the acquiring module according to a mapping relation between preset voltage rise time and touch pressure;
the execution module is configured to execute corresponding control operation according to the touch pressure determined by the determination module;
wherein the acquisition module comprises:
the acquisition sub-module is configured to acquire a voltage value corresponding to touch operation through an analog-to-digital converter (ADC), and the ADC is electrically connected with the first touch electrode layer;
the acquisition submodule is configured to acquire the voltage rise time according to the voltage value acquired by the acquisition submodule.
4. The apparatus of claim 3, further comprising:
an establishing module configured to establish a mapping relationship between the voltage rise time and a touch pressure.
5. A touch device is applied to terminal equipment, wherein the terminal equipment comprises a touch panel, and the touch panel comprises a first touch electrode layer, anisotropic conductive adhesive and a second touch electrode layer; the first touch electrode layer and the second touch electrode layer are connected through the anisotropic conductive film, and when a user performs touch operation on the first touch electrode layer, the voltage of the first touch electrode layer changes; the method comprises the following steps:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
detecting whether touch operation on the first touch electrode layer exists or not;
if the touch operation on the first touch electrode layer is detected, acquiring voltage rise time corresponding to the touch operation; the voltage rise time is the time for the voltage of the first touch electrode layer to change from a reference voltage to a preset voltage;
determining touch pressure corresponding to the voltage rise time according to a mapping relation between preset voltage rise time and touch pressure;
executing corresponding control operation according to the determined touch pressure;
wherein the obtaining of the voltage rise time corresponding to the touch operation includes:
acquiring a voltage value corresponding to the touch operation through an analog-to-digital converter (ADC), wherein the ADC is electrically connected with the first touch electrode layer;
and acquiring the voltage rise time according to the voltage value.
6. A non-transitory computer readable storage medium having instructions therein which, when executed by a processor of a terminal device, enable the terminal device to perform the method of any one of claims 1-2.
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| CN201710386275.7A CN107247527B (en) | 2017-05-26 | 2017-05-26 | Touch method, device and equipment |
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| CN105404420A (en) * | 2015-11-04 | 2016-03-16 | 宸鸿科技(厦门)有限公司 | Pressure sensing signal processing method and system |
| CN106383609A (en) * | 2016-09-12 | 2017-02-08 | 北京小米移动软件有限公司 | Display panel and electronic equipment |
| CN106610747A (en) * | 2015-10-26 | 2017-05-03 | 京东方科技集团股份有限公司 | Embedded touch screen and driving method thereof and display device |
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| US20110067933A1 (en) * | 2009-09-18 | 2011-03-24 | Delta Electronics, Inc. | Touch-control apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610747A (en) * | 2015-10-26 | 2017-05-03 | 京东方科技集团股份有限公司 | Embedded touch screen and driving method thereof and display device |
| CN105404420A (en) * | 2015-11-04 | 2016-03-16 | 宸鸿科技(厦门)有限公司 | Pressure sensing signal processing method and system |
| CN106383609A (en) * | 2016-09-12 | 2017-02-08 | 北京小米移动软件有限公司 | Display panel and electronic equipment |
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