CN106354304B - Touch panel, touch device and driving method thereof - Google Patents
Touch panel, touch device and driving method thereof Download PDFInfo
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- CN106354304B CN106354304B CN201610721544.6A CN201610721544A CN106354304B CN 106354304 B CN106354304 B CN 106354304B CN 201610721544 A CN201610721544 A CN 201610721544A CN 106354304 B CN106354304 B CN 106354304B
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- 238000000034 method Methods 0.000 title abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 92
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 238000013016 damping Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Electronic Switches (AREA)
Abstract
The embodiment of the invention discloses a touch panel, a touch device and a driving method thereof, relates to the field of touch, and aims to reduce external electric signal interference and improve the accuracy and sensitivity of pressure touch. The touch panel includes: the device comprises a middle frame and a panel arranged on the middle frame, wherein a signal detection unit is arranged between the panel and the middle frame; the signal detection unit comprises a signal receiver arranged on the middle frame and a signal transmitter arranged on the panel; or comprises a signal transmitter arranged on the middle frame and a signal receiver arranged on the panel; the signal transmitters and the signal receivers are in one-to-one correspondence, the signal transmitters are used for transmitting detection signals to the corresponding signal receivers, and the signal receivers are used for receiving the detection signals transmitted by the corresponding signal transmitters.
Description
Technical Field
The present invention relates to the field of touch control, and in particular, to a touch panel, a touch device and a driving method thereof.
Background
At present, a touch implementation mode is generally capacitive touch or resistive touch, a resistive touch screen mainly implements a touch function through a resistive film screen with two conductive layers, when a finger or other objects touch the screen, the two conductive layers change, and a controller judges a contact point through resistance change and performs corresponding operation; the induction screen of the capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are respectively coated with a conducting layer, and the outermost layer is a thin silica glass protective layer. When a finger touches the induction screen, the electric field of a human body enables the finger and the surface of the touch screen to form a coupling capacitor, and for high-frequency current, the capacitor is a direct conductor, so that the finger sucks a small current from a contact point. The current flows out of the electrodes on the four corners of the touch screen, the current flowing through the four electrodes is in proportion to the distance from the finger to the four corners, and the controller obtains the position of the touch point through accurate calculation of the four current proportions.
In order to further improve the function of the touch screen, a novel touch mode of pressure touch is introduced to part of products, namely, the position of a touch point can be positioned and the pressing force on the touch point can be fed back, so that the function of the product is enriched. However, the pressure touch implementation is generally the same as the position touch, that is, the pressure touch implementation is still implemented by using a capacitive type or a resistive type, and since an electric field generated by an external electric signal directly affects the capacitance value of the capacitor and the resistance value of the resistor, the pressure touch implementation has weak anti-interference capability on the external electric signal and low accuracy and sensitivity.
Disclosure of Invention
The embodiment of the invention provides a touch panel, a touch device and a driving method thereof, relates to the field of touch, and aims to reduce external electric signal interference and improve accuracy and sensitivity of pressure touch.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a touch panel is provided, including: the device comprises a middle frame and a panel arranged on the middle frame, wherein a signal detection unit is arranged between the panel and the middle frame;
the signal detection unit comprises a signal receiver arranged on the middle frame and a signal transmitter arranged on the panel;
or, the signal detection unit comprises a signal emitter arranged on the middle frame and a signal receiver arranged on the panel;
each signal receiver corresponds to one signal transmitter, the signal transmitter is used for transmitting a detection signal to the corresponding signal receiver, and the signal receiver is used for receiving the detection signal transmitted by the corresponding signal transmitter; before the touch panel is touched, the value of the detection signal received by the signal receiver is an initial value, when the touch panel is touched, the value of the detection signal received by the signal receiver is a touch value, and the initial value and the touch value are used for calculating touch pressure.
Optionally, the panel is a display panel.
Optionally, the panel includes a cover plate, a touch display module and a backlight module, which are stacked, wherein the signal transmitter or the signal receiver is disposed on one side of the backlight module close to the middle frame.
Optionally, the signal detection units are distributed between the panel and the middle frame in an array.
Optionally, a barrier layer is filled between the panel and the middle frame, and the barrier layer is made of a flexible material capable of attenuating the detection signal.
Optionally, the flexible material comprises a gel.
Optionally, the detection signal includes at least one of: ultrasonic, infrared, laser.
In a second aspect, a touch device is provided, which includes the touch panel of any one of the above;
the touch device also comprises a detection signal sending unit and a detection signal receiving unit, wherein the detection signal sending unit is connected with the signal transmitter and is used for transmitting a detection signal to the corresponding signal receiver through the signal transmitter; the detection signal receiving unit is connected with the signal receiver and used for receiving the detection signals transmitted by the corresponding signal transmitters through the signal receiver and calculating the touch pressure by detecting the values of the received detection signals.
In a third aspect, a driving method of a touch device is provided, including:
triggering a signal emitter to send out a detection signal;
receiving a detection signal through a signal receiver corresponding to the signal transmitter, and recording the value of the detection signal received by the signal receiver as an initial value;
when touch operation occurs, the touch value of the detection signal received by the detection signal receiver calculates the touch pressure according to the initial value and the touch value.
Optionally, calculating the touch pressure according to the initial value and the touch value may be: and calculating the touch pressure according to the difference value of the initial value and the touch value.
In the touch panel, the touch device and the driving method thereof provided by the above scheme, a signal detection unit is arranged between the panel and the middle frame of the touch panel; the signal detection unit comprises a signal receiver and a signal transmitter; the signal detection unit and the signal receiving unit are respectively arranged on the middle frame or the panel; each signal receiver corresponds to one signal transmitter, the signal transmitter can transmit a detection signal to the corresponding signal receiver, and the signal receiver can receive the detection signal transmitted by the corresponding signal transmitter; before the touch panel is touched, the value of the detection signal received by the signal receiver is an initial value, when the touch panel is touched, the value of the detection signal received by the signal receiver is a touch value, and the initial value and the touch value are used for calculating touch pressure. Compared with the capacitive or resistive pressure detection, the embodiment of the invention is based on signal detection, and can avoid the direct influence of an electric field generated by an external electric signal on the capacitance value of the capacitor and the resistance value of the resistor, thereby avoiding or reducing the interference of the external electric signal and improving the accuracy and sensitivity of pressure touch control. In addition, since the initial value and the touch value are relative, that is, even if interference of an external electric signal occurs, the interference to the initial value and the touch value is the same, so that the interference can be cancelled when the touch pressure is calculated by the initial value and the touch value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a touch panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a touch device according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a driving method of a touch device 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 embodiment of the invention provides a touch panel 1, which comprises a middle frame 12 and a panel 11 arranged on the middle frame 12, wherein a signal detection unit 13 is arranged between the panel 11 and the middle frame 12;
wherein, the signal detection unit 13 includes: a signal receiver 132 provided on the middle frame 12 and a signal transmitter 131 provided on the panel 11;
alternatively, the signal detection unit 13 includes: a signal transmitter 131 provided on the middle frame 12 and a signal receiver 132 provided on the panel 11;
each signal receiver 132 corresponds to one signal transmitter 131, the signal transmitter 131 is configured to transmit a detection signal to the corresponding signal receiver 132, and the signal receiver 132 is configured to receive the detection signal transmitted by the corresponding signal transmitter 131; the value of the detection signal received by the signal receiver 132 before the touch panel 1 is touched is an initial value, and the value of the detection signal received by the signal receiver 132 when the touch panel 1 is touched is a touch value, and the initial value and the touch value are used to calculate the touch pressure.
For example, for clarity of illustration, it is needless to say that the touch panel is not limited to the following manner, as shown in fig. 1, the touch panel includes a middle frame 12, a panel 11 is disposed in the middle frame 12, a signal detection unit 13 is disposed between the lower side of the panel 11 and the middle frame 12, and the signal detection unit 13 includes a signal transmitter 131 disposed on the panel 11 and a signal receiver 132 disposed on the middle frame 12.
As shown in fig. 2, the signal transmitter 131 may be located on the middle frame 12, and similarly, the signal receiver 132 may be located on the panel 11.
For example, as shown in fig. 1, 2, 3 and 4, the panel 11 may be composed of a cover plate 111, a touch display module 112 and a backlight module 113, which are stacked, and the signal transmitter 131 or the signal receiver 132 is disposed on one side of the backlight module 113 close to the middle frame 12. The main function of the panel is to provide a display with a position touch function and a pressure touch function for the embodiments.
Of course, fig. 1, 2, 3 and 4 illustrate an example of a liquid crystal display panel, in which the liquid crystal display panel requires a backlight module to provide a light source for the touch display module 112, and when a light emitting diode panel is adopted, the panel may not include the backlight module.
Illustratively, the panel here may be a display panel.
For example, as shown in fig. 1, 2, 3 and 4, the signal detecting units 13 may be distributed in an array between the panel 11 and the middle frame 12.
For example, the signal detection unit 13 may be one or a plurality of units distributed in an array, for example, fixed value keys (home key, return key, standby key, etc.) set at predetermined positions on the panel or distributed on the whole screen, and is not limited herein.
For example, as shown in fig. 1, 2, 3, and 4, in order to make the touch detection effect more sensitive, in the embodiment of the present invention, a barrier layer is disposed between the panel 11 and the middle frame 12 for the signal detection unit 13, where the barrier layer may be a flexible material that can attenuate the detection signal to some extent, and the flexible material may be a gel or the like. When the distance between the signal transmitter 131 and the signal receiver 132 is smaller than that when no touch occurs, and thus the distance between the signal transmitter 131 and the signal receiver 132 when a touch occurs is smaller than that when no touch occurs, the damping effect of the barrier between the signal transmitter 131 and the signal receiver 132 when a touch occurs on the detection signal is smaller than that when no touch occurs, and the difference between the initial value of the ranging signal and the touch value when a touch and no touch occur is larger after the barrier is added compared with the case without the barrier. That is, the touch sensitivity of the touch panel is higher after the barrier is added.
A signal detection unit is arranged between the panel and the middle frame of the touch panel provided by the scheme; the signal detection unit comprises a signal receiver and a signal transmitter; the signal detection unit and the signal receiving unit are respectively arranged on the middle frame or the panel; each signal receiver corresponds to one signal transmitter, the signal transmitter can transmit a detection signal to the corresponding signal receiver, and the signal receiver can receive the detection signal transmitted by the corresponding signal transmitter; before the touch panel is touched, the value of the detection signal received by the signal receiver is an initial value, when the touch panel is touched, the value of the detection signal received by the signal receiver is a touch value, and the initial value and the touch value are used for calculating touch pressure. Compared with a capacitive or resistive pressure touch control mode, the embodiment of the invention is based on signal detection, and can avoid the direct influence of an electric field generated by an external electric signal on the capacitance value of a capacitor and the resistance value of a resistor, further avoid or reduce the interference of the external electric signal, and improve the accuracy and sensitivity of pressure touch control. In addition, since the initial value and the touch value are relative, that is, even if interference of an external electric signal occurs, the interference to the initial value and the touch value is the same, so that the interference can be cancelled when the touch pressure is calculated by the initial value and the touch value.
The detection signal used in the touch panel may be any of ultrasonic waves, infrared rays, laser beams, and the like.
An embodiment of the present invention provides a touch device, as shown in fig. 5, including the touch panel 1 provided in the above embodiment, and further including a detection signal sending unit 2 and a detection signal receiving unit 3;
the detection signal sending unit 2 is connected with the signal transmitter 131, and is used for sending a detection signal to the corresponding signal receiver 132 through the signal transmitter;
the detection signal receiving unit 3 is connected to the signal receiver 132 for receiving the detection signal transmitted from the corresponding signal transmitter 131 through the signal receiver and calculating the touch pressure by detecting the value of the received detection signal.
For example, the touch device may be: any product or component with a touch display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Referring to fig. 6, the present invention further provides a driving method of a touch device, including:
601: triggering a signal emitter to send out a detection signal;
602: receiving a detection signal through a signal receiver corresponding to the signal transmitter, and recording the value of the detection signal received by the signal receiver as an initial value;
603: when touch operation occurs, detecting a touch value of a detection signal received by a signal receiver, and calculating touch pressure according to the initial value and the touch value;
specifically, the calculation of the touch pressure may be performed according to a difference between an initial value of the detection signal and the touch value.
In the driving method of the touch device provided by the above scheme, firstly, a signal emitter is triggered to send a detection signal to a corresponding signal receiver, then the signal receiver corresponding to the signal emitter receives the detection signal, and the value of the detection signal received by the signal receiver is recorded as an initial value; then when touch operation occurs, detecting a touch value of a detection signal received by the signal receiver, and finally calculating touch pressure according to the initial value and the touch value; compared with a capacitive or resistive pressure touch control mode, the embodiment of the invention is based on signal detection, and can avoid the direct influence of an electric field generated by an external electric signal on the capacitance value of a capacitor and the resistance value of a resistor, further avoid or reduce the interference of the external electric signal, and improve the accuracy and sensitivity of pressure touch control. In addition, since the initial value and the touch value are relative, that is, even if interference of an external electric signal occurs, the interference to the initial value and the touch value is the same, so that the interference can be cancelled when the touch pressure is calculated by the initial value and the touch value.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A touch panel, comprising: the device comprises a middle frame and a panel arranged on the middle frame, wherein a signal detection unit is arranged between the panel and the middle frame;
wherein the signal detection unit includes: a signal receiver disposed on the middle frame and a signal transmitter disposed on the panel;
alternatively, the signal detection unit includes: a signal transmitter arranged on the middle frame and a signal receiver arranged on the panel;
each signal receiver corresponds to one signal transmitter, the signal transmitter is used for transmitting a detection signal to the corresponding signal receiver, and the signal receiver is used for receiving the detection signal transmitted by the corresponding signal transmitter; before the touch panel is touched, the value of the detection signal received by the signal receiver is an initial value, when the touch panel is touched, the value of the detection signal received by the signal receiver is a touch value, and the initial value and the touch value are used for calculating touch pressure;
the panel arranged on the middle frame is a display panel;
the signal detection units are distributed between the panel and the middle frame in an array;
and a barrier layer is filled between the panel and the middle frame, and the barrier layer is made of a flexible material for attenuating the detection signal.
2. The touch panel of claim 1, wherein the panel comprises a cover plate, a touch display module and a backlight module, wherein the cover plate, the touch display module and the backlight module are stacked, and the signal transmitter or the signal receiver is disposed on a side of the backlight module close to the middle frame.
3. The touch panel of claim 1, wherein the flexible material comprises a gel.
4. The touch panel of claim 1, wherein the detection signal comprises at least one of: ultrasonic, infrared, laser.
5. A touch device comprising the touch panel according to any one of claims 1 to 4;
the touch device also comprises a detection signal sending unit and a detection signal receiving unit;
the detection signal sending unit is connected with the signal transmitter and used for sending a detection signal to a corresponding signal receiver through the signal transmitter;
the detection signal receiving unit is connected with the signal receiver and used for receiving the detection signals transmitted by the corresponding signal transmitters through the signal receiver and calculating the touch pressure by detecting the values of the received detection signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721544.6A CN106354304B (en) | 2016-08-24 | 2016-08-24 | Touch panel, touch device and driving method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610721544.6A CN106354304B (en) | 2016-08-24 | 2016-08-24 | Touch panel, touch device and driving method thereof |
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| CN106354304A CN106354304A (en) | 2017-01-25 |
| CN106354304B true CN106354304B (en) | 2021-05-14 |
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| CN201610721544.6A Expired - Fee Related CN106354304B (en) | 2016-08-24 | 2016-08-24 | Touch panel, touch device and driving method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108733268A (en) * | 2017-04-18 | 2018-11-02 | 成都吉锐时代触摸技术有限公司 | A method of detection writing physical strength |
| CN108062179A (en) * | 2017-12-15 | 2018-05-22 | 武汉华星光电半导体显示技术有限公司 | Touch panel and its pressure feedback system, display device with pressure sensitivity feedback |
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| CN105183241A (en) * | 2015-08-21 | 2015-12-23 | 惠州Tcl移动通信有限公司 | Pressure sensing-based touch panel and display device, and pressure sensing implementation method |
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| CN205068342U (en) * | 2014-10-24 | 2016-03-02 | 希迪普公司 | Touch input device |
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| WO2016102975A2 (en) * | 2014-12-23 | 2016-06-30 | Cambridge Touch Technologies, Ltd | Pressure-sensitive touch panel |
| CN105843446A (en) * | 2016-03-18 | 2016-08-10 | 京东方科技集团股份有限公司 | Detection assembly, touch display apparatus, touch positioning method and pressure detection method |
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2016
- 2016-08-24 CN CN201610721544.6A patent/CN106354304B/en not_active Expired - Fee Related
Patent Citations (8)
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| CN105683883A (en) * | 2013-11-04 | 2016-06-15 | 高通股份有限公司 | Piezoelectric force sensing array |
| CN205068342U (en) * | 2014-10-24 | 2016-03-02 | 希迪普公司 | Touch input device |
| WO2016102975A2 (en) * | 2014-12-23 | 2016-06-30 | Cambridge Touch Technologies, Ltd | Pressure-sensitive touch panel |
| CN105183241A (en) * | 2015-08-21 | 2015-12-23 | 惠州Tcl移动通信有限公司 | Pressure sensing-based touch panel and display device, and pressure sensing implementation method |
| CN204926053U (en) * | 2015-09-06 | 2015-12-30 | 南昌欧菲光科技有限公司 | Touch display apparatus |
| CN105511671A (en) * | 2015-12-01 | 2016-04-20 | 信利光电股份有限公司 | Touch screen and mobile phone |
| CN105607775A (en) * | 2016-01-18 | 2016-05-25 | 京东方科技集团股份有限公司 | Pressure touch display device and pressure touch method |
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| CN106354304A (en) | 2017-01-25 |
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