CN109002202B - Touch display screen driving circuit, touch display and electronic device - Google Patents
Touch display screen driving circuit, touch display and electronic device Download PDFInfo
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- CN109002202B CN109002202B CN201810621582.3A CN201810621582A CN109002202B CN 109002202 B CN109002202 B CN 109002202B CN 201810621582 A CN201810621582 A CN 201810621582A CN 109002202 B CN109002202 B CN 109002202B
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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
Abstract
The embodiment of the application discloses touch-control display screen drive circuit, touch-control display and electronic equipment, drive circuit includes: the touch control circuit comprises a drive integrated circuit IC, a plurality of RX metal wires, a plurality of TX metal wires, an RX switch module, a TX switch module, a touch control area, an RX amplifying circuit and a TX amplifying circuit. The technical scheme provided by the application has the advantage of high user experience.
Description
Technical Field
The application relates to the technical field of communication, in particular to a touch display screen driving circuit, a touch display and an electronic device.
Background
With the increasing popularity of electronic devices such as mobile phones, the appearance of the mobile phones has also changed significantly. Full screen handsets have become the focus of current research. Under the condition of a comprehensive screen, the scanning frequency of a Touch Panel (TP) and the scanning frequency of a display screen are both 60Hz, the sensitivity of the conventional touch panel is low, false alarm is easy to occur, and the experience degree of a user is influenced.
Disclosure of Invention
The embodiment of the application provides a touch display screen drive circuit, a touch display and an electronic device, which can improve the sensitivity of a touch screen, avoid the phenomena of misinformation and screen flashing and improve the user experience.
In a first aspect of the embodiments of the present application, a touch display screen driving circuit is provided, where the driving integrated circuit IC, a plurality of RX metal lines, a plurality of TX metal lines, an RX switch module, a TX switch module, a touch area, an RX amplification circuit, and a TX amplification circuit are provided; wherein the content of the first and second substances,
one output end of the driving integrated circuit IC is connected with one end of the TX amplifying circuit, the other end of the TX amplifying circuit is connected with the collector electrodes of a plurality of switching tubes in the TX switching module, the emitter electrodes of the switching tubes of the TX switching module are connected with one end of the TX metal wires, the other end of the TX metal wires is connected with the input end of the driving integrated circuit IC, each metal wire in the TX metal wires is electrically connected with one touch area of the touch areas through one touch hole, and the touch areas connected with the TX metal wires are different;
one output end of the drive integrated circuit IC is connected with one end of the RX amplifying circuit, the other end of the RX amplifying circuit is connected with the collector electrodes of a plurality of switching tubes in the RX switching module, the emitter electrodes of the switching tubes of the RX switching module are connected with one ends of the plurality of RX metal wires, the other ends of the plurality of RX metal wires are connected with the input end of the drive integrated circuit IC, each metal wire in the plurality of RX metal wires is electrically connected with one touch area of the plurality of touch areas through one touch hole, and the touch areas connected with each RX metal wire are different.
In a second aspect, a touch display is provided, and the touch display includes the touch display screen driving circuit provided in the first aspect.
In a third aspect, an electronic device is provided, which includes a touch display screen and the touch display circuit provided in the first aspect.
In the embodiment of the application, the power supply of the driving integrated circuit IC to the switching tube is generally about 2.0V, the TX power of the touch display screen is small due to the voltage, the detection for the longer distance cannot be realized, and according to the technical scheme of the application, the DO model is amplified by the TX amplifying circuit, so the power supply to the switching tube can be increased, and thus the voltage rise of a plurality of touch areas is realized, so the detection power can be improved, the detection for the longer distance is realized, and after the voltage is improved, the rising edge and the falling edge of the pulse waveform are steepened, so the detection duration of the unit pulse can be increased, the detection for the longer time can be realized, and the advantage of improving the detection sensitivity is realized.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, 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 an electronic device disclosed in an embodiment of the present application;
fig. 2 is a schematic diagram of a TX touch display circuit disclosed in an embodiment of the present application;
fig. 3 is a schematic diagram of an RX touch display circuit disclosed in the embodiment of the present application;
fig. 4 is a schematic diagram illustrating a distribution of touch areas according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of another TX touch display circuit disclosed in the embodiments of the present application;
fig. 6 is a schematic diagram of another RX touch display circuit disclosed in the embodiment of the present application;
fig. 7 is a schematic view of a touch display disclosed in an embodiment of the present application;
fig. 8 is a schematic structural diagram of another electronic device disclosed in the embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, system, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The electronic device according to the embodiment of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and the like. For convenience of description, the above-mentioned apparatuses are collectively referred to as electronic devices.
In the touch display screen driving circuit provided in the first aspect, the driving circuit specifically includes:
the driving integrated circuit IC includes: switch, power signal DO; the power supply signal is connected with the input end of the TX amplification circuit, the output end of the TX amplification circuit is connected with the collectors of a plurality of switch tubes of the TX switch module, the bases of the switch tubes are connected with the switch, the emitters of the switch tubes are respectively connected with one ends of a plurality of TX metal wires, and the other ends of the TX metal wires are connected with the input end of the driving integrated circuit IC;
the power signal DO is connected to the input terminal of the RX amplifier circuit, the output terminal of the RX amplifier circuit 85 is connected to the collectors of the plurality of switching tubes of the RX switch module 82 through the conducting wire 12, the bases of the plurality of switching tubes of the RX switch module 82 are connected to the switch, the emitters of the plurality of switching tubes of the RX switch module 82 are respectively connected to one ends of a plurality of RX metal wires, and the other end of the RX metal wire is connected to the input terminal of the driver IC 80.
In the touch display screen driving circuit provided in the first aspect, the driving circuit further includes: the power supply signal DE and the selection switch specifically comprise:
the selection switch comprises a first selection switch and a second selection switch, and the TX switch module comprises: a first switch tube group and a second switch tube group;
the power supply signal is connected with a common end of the first selection switch, one selection end of the first selection switch is connected with an input end of the TX amplification circuit, an output end of the TX amplification circuit is connected with a collector electrode of the first switch tube group, and the other selection end of the first selection switch is connected with a collector electrode of the first switch tube group;
the power supply signal is connected with a common end of the second selection switch, one selection end of the second selection switch is connected with an input end of the TX amplification circuit, an output end of the TX amplification circuit is connected with a collector electrode of the second switch tube group, and the other selection end of the second selection switch is connected with a collector electrode of the second switch tube group;
the base electrodes of a plurality of switch tubes of the TX switch module are connected with a switch;
the emitting electrodes of the first switch tube group are respectively connected with one ends of a plurality of TX metal wires in a first area, the other ends of the plurality of TX metal wires in the first area are connected with the input end of the driving Integrated Circuit (IC), the emitting electrodes of the second switch tube group are respectively connected with one ends of a plurality of TX metal wires in a second area, the other ends of the plurality of TX metal wires in the second area are connected with the input end of the driving Integrated Circuit (IC), each metal wire in the plurality of TX metal wires is electrically connected with one touch area in the first group of touch areas in the plurality of touch areas through one touch hole, and the plurality of TX metal wires in the second area are connected with the second group of touch areas in the plurality of touch areas.
In the touch display screen driving circuit provided in the first aspect, the driving circuit includes: the power supply signal DE and the selection switch specifically comprise:
the selector switch includes a third selector switch and a fourth selector switch, and the RX switch module includes: a third switch tube group and a fourth switch tube group,
the power supply signal DO is connected to a common terminal of the third selection switch, one selection terminal of the third selection switch is connected to an input terminal of the RX amplification circuit, an output terminal of the RX amplification circuit is connected to a collector of the third switching tube group, and another selection terminal of the third selection switch is connected to a collector of the third switching tube group;
the power signal DE is connected to a common terminal of the fourth selection switch, one selection terminal of the fourth selection switch is connected to an input terminal of the RX amplification circuit, an output terminal of the RX amplification circuit is connected to a collector of the fourth switch tube group, and another selection terminal of the fourth selection switch is connected to a collector of the fourth switch tube group;
the base electrodes of a plurality of switch tubes of the RX switch module are connected with a switch;
the emitting electrodes of the third switch tube group are respectively connected with one ends of a plurality of RX metal wires in a third area, the other ends of the plurality of RX metal wires in the third area are connected with the input end of the drive integrated circuit IC, the emitting electrodes of the fourth switch tube group are respectively connected with one ends of a plurality of TX metal wires in a fourth area, the other ends of the plurality of RX metal wires in the fourth area are connected with the input end of the drive integrated circuit IC, each metal wire in the plurality of RX metal wires is electrically connected with one touch area of the plurality of touch areas through one touch hole, the touch areas connected with each RX metal wire are different, the plurality of RX metal wires in the third area are connected with a third group of touch areas in the plurality of touch areas, and the plurality of RX metal wires in the fourth area are connected with a fourth group of touch areas in the plurality of touch areas.
In the touch display screen driving circuit provided in the first aspect, the switching tube is: and a thin film transistor.
In the touch display screen driving circuit provided in the first aspect, the TX amplifying circuit is a voltage boosting circuit.
In the touch display screen driving circuit provided in the first aspect, the RX amplifying circuit is a voltage boosting circuit.
In the touch display screen driving circuit provided in the first aspect, the selection switch is: an alternative switch.
The following describes embodiments of the present application in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application, and as shown in fig. 1, the electronic device 100 includes a touch display screen 21 and a touch display screen driving circuit 22; the touch display screen driving circuit 22 may specifically include: a driving integrated circuit IC80, a Receiving (RX) metal wire 81, a Transmitting (TX) metal wire 13, an RX switch module 82, a TX switch module 10, a touch area 11;
the touch display screen driving circuit 22 is electrically connected to the touch display screen 21;
referring to fig. 2, fig. 2 is a schematic diagram of a TX touch detection circuit of a touch display panel, as shown in fig. 2, the driving IC80 includes: specifically, the power supply signal DO is connected to an input end of the TX amplifying circuit 15 through a wire 12, an output end of the TX amplifying circuit 15 is connected to collectors of a plurality of switching tubes of the TX switch module 10 through the wire 12, bases of the switching tubes are connected to the switch, emitters of the switching tubes are respectively connected to one ends of a plurality of TX metal wires, the other ends of the TX metal wires are connected to an input end of the driver IC80, each of the TX metal wires is electrically connected to one of the plurality of touch areas 11 through a touch hole 13, and touch areas connected to each TX metal wire are different.
Referring to fig. 3, fig. 3 is a schematic diagram of an RX touch detection circuit of a touch display screen, as shown in fig. 3, the driving IC80 includes: specifically, the power supply signal DO is connected to an input terminal of the RX amplifier circuit 85 through a lead 12, an output terminal of the RX amplifier circuit 85 is connected to collectors of a plurality of switching tubes of the RX switch module 82 through the lead 12, bases of the switching tubes of the RX switch module 82 are connected to the switch, emitters of the switching tubes of the RX switch module 82 are respectively connected to one ends of a plurality of RX metal lines, the other ends of the RX metal lines are connected to an input terminal of the driver IC80, each RX metal line of the plurality of RX metal lines is electrically connected to one of the plurality of touch areas 11 through another touch hole, and the touch areas connected to each RX metal line are different.
For the technical solution of the present application, for convenience of description, TX and RX are respectively used for illustration here, for TX, referring to fig. 2, the power supply of the driving IC80 to the switching tube is generally about 2.0V, and the voltage makes the TX power of the touch display screen smaller, so that detection for a longer distance cannot be realized, the DO model is amplified by a TX amplifying circuit, so that the power supply to a switching tube can be increased, thereby realizing the voltage rise of a plurality of touch areas, improving the detection power and realizing the detection at a longer distance, and after the voltage is increased, the rising edge and the falling edge of the pulse waveform are changed steeply, so that the detection time length of the unit pulse can be increased, the detection for a longer time can be realized, and the method has the advantage of improving the detection sensitivity.
For RX, referring to fig. 3, the power supply of the driver IC80 to the switching tube is generally about 2.0V, and the voltage makes the RX power of the touch display screen smaller, so that the detection for a long distance cannot be realized, for the technical solution of the present application, the DO type is amplified by the TX amplifying circuit, so that the power supply to the switching tube can be increased, thereby realizing the voltage rise of a plurality of touch areas, so that the detection power can be increased, thereby realizing the detection for a long distance, and after the voltage is increased, the rising edge and the falling edge of the pulse waveform are steep, so that the detection duration of a unit pulse can be increased, and the detection for a long time can be realized, so that the advantage of improving the detection sensitivity is provided. Here, the RX amplifier circuit and the TX amplifier circuit are respectively provided for TX and RX, so that the TX amplifier circuit and the RX amplifier circuit can boost different voltages depending on different situations.
Optionally, the RX amplifier circuit may be a boost circuit, a specific structure of the boost circuit is not limited in this application, and the TX amplifier circuit may be a boost circuit.
Alternatively, the switching tube may be a Thin Film Transistor (TFT).
The touch areas may be arranged in a rectangular array as shown in fig. 2 or fig. 3, but in practical applications, as shown in fig. 4, the touch areas may also be arranged in a diamond array. Of course, in practical application, other arrangement modes can be adopted, and the application is not limited to the specific expression of the arrangement mode.
Referring to fig. 5, fig. 5 provides another schematic diagram of a TX touch detection circuit, as shown in fig. 5, the driving IC80 includes: switch, power signal DO, power signal DE, select switch, TX amplifier circuit, TX switch module 10, specifically, the select switch includes a first select switch 551 and a second select switch 552, the TX switch module 10 includes: a first switching tube group 101 and a second switching tube group 102,
the power signal DO is connected to the common terminal of the first selection switch 551 through the wire 12, one selection terminal of the first selection switch 551 is connected to the input terminal of the amplification circuit 15, the output terminal of the TX amplification circuit 15 is connected to the collector of the first switch tube group of the TX switch module 10 through the wire 12, and the other selection terminal of the first selection switch 551 is connected to the collector of the first switch tube group;
the power signal DE is connected to a common terminal of the second selection switch 552 through a conducting wire 12, one selection terminal of the second selection switch 552 is connected to an input terminal of the amplifying circuit 15, an output terminal of the TX amplifying circuit 15 is connected to a collector of a second switch tube group of the TX switch module 10 through the conducting wire 12, and the other selection terminal of the second selection switch 552 is connected to the collector of the second switch tube group;
the bases of a plurality of switch tubes of the TX switch module 10 are connected with a switch;
the emitting electrodes of the first switch tube group are respectively connected with one ends of a plurality of TX metal wires of a first area, the other ends of the plurality of TX metal wires of the first area are connected with the input end of the driving integrated circuit IC80, the emitting electrodes of the second switch tube group are respectively connected with one ends of a plurality of TX metal wires of a second area, the other ends of the plurality of TX metal wires of the second area are connected with the input end of the driving integrated circuit IC80, each of the plurality of TX metal wires is electrically connected with one of the plurality of touch areas 11 through one touch hole 13, the touch areas connected with each TX metal wire are different, the plurality of TX metal wires of the first area are connected with the first touch area of the plurality of touch areas 11, and the plurality of TX metal wires of the second area are connected with the second touch area of the plurality of touch areas 11.
Specifically, the first group of touch areas may be touch areas in an upper half area of the touch display screen, and the second group of touch areas may be touch areas in a lower half area of the touch display screen. In practical applications, the first group of touch areas may be touch areas in a left half area of the touch display screen, and the second group of touch areas may be touch areas in a right half area of the touch display screen. In practical applications, a user or a manufacturer may also define a specific range of the first set of touch areas by himself, and the application does not limit the specific range of the first set of touch areas or the second set of touch areas.
The purpose of this kind of mode is to divide this touch-control display screen into a plurality of regions, namely can adopt amplifier circuit to increase the voltage in upper half region, adopt ordinary voltage to carry out touch-control detection in lower half region, distinguish the detection like this and reduce the power consumption at first, and can carry out subregion's control to touch-control display screen's sensitivity according to actual conditions, so it has the advantage that further improves sensitivity.
Referring to fig. 6, fig. 6 provides another schematic diagram of an RX touch detection circuit, as shown in fig. 6, the driver IC80 includes: switch, power signal DO, power signal DE, selector switch, RX amplifier circuit, RX switch module, specifically, the selector switch includes third selector switch and fourth selector switch, and RX switch module includes: a third switching tube set 601 and a fourth switching tube set 602,
the power supply signal DO is connected with the common terminal of the third selection switch through a lead 12, one selection terminal of the third selection switch is connected with the input terminal of the RX amplification circuit, the output terminal of the RX amplification circuit is connected with the collector of the third switching tube group of the RX switching module through the lead 12, and the other selection terminal of the third selection switch is connected with the collector of the third switching tube group;
the power signal DE is connected with a common end of a fourth selection switch through a lead 12, one selection end of the fourth selection switch is connected with an input end of an RX amplification circuit, an output end of the RX amplification circuit is connected with a collector electrode of a fourth switch tube group of the RX switch module through the lead 12, and the other selection end of the fourth selection switch is connected with a collector electrode of the fourth switch tube group;
the base electrodes of a plurality of switch tubes of the RX switch module are connected with a switch;
the emitters of the third switch tube group are respectively connected with one ends of a plurality of RX metal wires of the third area, the other ends of the plurality of RX metal wires of the third area are connected with the input end of the driver integrated circuit IC80, the emitters of the fourth switch tube group are respectively connected with one ends of a plurality of TX metal wires of the fourth area, the other ends of the plurality of RX metal wires of the fourth area are connected with the input end of the driver integrated circuit IC80, each of the plurality of RX metal wires is electrically connected with one of the plurality of touch areas 11 through one touch hole 13, the touch areas connected with each RX metal wire are different, the plurality of RX metal wires of the third area are connected with a third group of touch areas 11, and the plurality of RX metal wires of the fourth area are connected with a fourth group of touch areas 11.
Specifically, the third group of touch areas may be touch areas in an upper half area of the touch display screen, and the fourth group of touch areas may be touch areas in a lower half area of the touch display screen. In practical applications, the third group of touch areas may be touch areas in a left half area of the touch display screen, and the fourth group of touch areas may be touch areas in a right half area of the touch display screen. In practical applications, a user or a manufacturer may also define a specific range of the third set of touch areas or the fourth set of touch areas by himself/herself, but the application is not limited to the specific range of the third set of touch areas or the fourth set of touch areas.
Referring to fig. 7, fig. 7 provides a touch display including the touch display driving circuit.
Referring to fig. 8, fig. 8 is a schematic structural diagram of another electronic device disclosed in the embodiment of the present application, the electronic device 100 includes a storage and processing circuit 710, and a communication circuit 720 and an audio component 740 connected to the storage and processing circuit 710, wherein in some specific electronic devices, a touch display 730 and a touch display driving circuit 780 may be further disposed.
The electronic device 100 may include control circuitry that may include the storage and processing circuitry 710. The storage and processing circuit 710 may be a memory, such as a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., a static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. The processing circuitry in the storage and processing circuitry 710 may be used to control the operation of the electronic device 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.
The storage and processing circuit 710 may be used to run software in the electronic device 100, such as Voice Over Internet Protocol (VOIP) phone call applications, simultaneous interpretation functions, media playing applications, operating system functions, and so on. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functions implemented based on a status indicator such as a status indicator light of a light emitting diode, touch event detection based on a touch sensor, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 100, and the like, without limitation to the embodiments of the subject application.
The electronic device 100 may also include input-output circuitry 750. The input-output circuit 750 may be used to enable the electronic apparatus 100 to implement input and output of data, i.e., to allow the electronic apparatus 100 to receive data from an external device and also to allow the electronic apparatus 100 to output data from the electronic apparatus 100 to the external device. Input-output circuit 750 may further include a sensor 770. The sensors 770 may include ambient light sensors, proximity sensors based on light and capacitance, touch sensors (e.g., based on optical touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or used independently as a touch sensor structure), acceleration sensors, and other sensors, among others.
Input-output circuitry 750 may also include a touch sensor array (i.e., display 730 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.
The electronic device 100 may also include an audio component 740. The audio component 740 may be used to provide audio input and output functionality for the electronic device 100. The audio components 740 in the electronic device 100 may include a speaker, a microphone, a buzzer, a tone generator, and other components for generating and detecting sound.
The communication circuit 720 may be used to provide the wearable device 100 with the ability to communicate with external devices. The communications circuitry 720 may include analog and digital input-output interface circuitry, and wireless communications circuitry based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 720 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 720 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, communications circuitry 720 may include a near field communications antenna and a near field communications transceiver. The communications circuitry 720 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuit and antenna, and so forth.
The electronic device 100 may further include a battery, power management circuitry, and other input-output units 760. Input-output unit 760 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes or other status indicators, and the like.
A user may enter commands through the input-output circuitry 750 to control the operation of the electronic device 100, and may use the output data of the input-output circuitry 750 to enable receipt of status information and other outputs from the electronic device 100.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The touch display screen driving circuit is characterized by comprising: the touch control circuit comprises a drive Integrated Circuit (IC), a plurality of RX metal wires, a plurality of TX metal wires, an RX switch module, a TX switch module, a touch control area, an RX amplifying circuit and a TX amplifying circuit; wherein the content of the first and second substances,
one output end of the driving integrated circuit IC is connected with one end of the TX amplifying circuit, the other end of the TX amplifying circuit is connected with the collector electrodes of a plurality of switching tubes in the TX switching module, the emitter electrodes of the switching tubes of the TX switching module are connected with one end of the TX metal wires, the other end of the TX metal wires is connected with the input end of the driving integrated circuit IC, each metal wire in the TX metal wires is electrically connected with one touch area of the touch areas through one touch hole, and the touch areas connected with the TX metal wires are different;
one output end of the drive integrated circuit IC is connected with one end of the RX amplifying circuit, the other end of the RX amplifying circuit is connected with the collector electrodes of a plurality of switching tubes in the RX switching module, the emitter electrodes of the switching tubes of the RX switching module are connected with one ends of the plurality of RX metal wires, the other ends of the plurality of RX metal wires are connected with the input end of the drive integrated circuit IC, each metal wire in the plurality of RX metal wires is electrically connected with one touch area of the plurality of touch areas through one touch hole, and the touch areas connected with each RX metal wire are different.
2. The touch display screen driving circuit according to claim 1, wherein the driving circuit specifically comprises:
the driving integrated circuit IC includes: switch, power signal DO; the power supply signal DO is connected with the input end of the TX amplifying circuit, the output end of the TX amplifying circuit is connected with the collectors of a plurality of switching tubes of the TX switching module, the bases of the switching tubes are connected with the switch, the emitters of the switching tubes are respectively connected with one ends of a plurality of TX metal wires, and the other ends of the TX metal wires are connected with the input end of the driving integrated circuit IC;
the power supply signal DO is connected with the input end of the RX amplification circuit, the output end of the RX amplification circuit (85) is connected with collectors of a plurality of switching tubes of the RX switch module (82) through a lead (12), bases of the switching tubes of the RX switch module (82) are connected with a switch, emitters of the switching tubes of the RX switch module (82) are respectively connected with one ends of a plurality of RX metal wires, and the other end of each RX metal wire is connected with the input end of a driving integrated circuit IC (80).
3. The touch display screen driving circuit according to claim 2, wherein the driving circuit further comprises: the power supply signal DE and the selection switch specifically comprise:
the selection switch comprises a first selection switch and a second selection switch, and the TX switch module comprises: a first switch tube group and a second switch tube group;
the power supply signal DO is connected with a common end of the first selection switch, one selection end of the first selection switch is connected with an input end of the TX amplification circuit, an output end of the TX amplification circuit is connected with a collector electrode of the first switch tube group, and the other selection end of the first selection switch is connected with a collector electrode of the first switch tube group;
the power signal DE is connected to a common terminal of the second selection switch, one selection terminal of the second selection switch is connected to an input terminal of the TX amplification circuit, an output terminal of the TX amplification circuit is connected to a collector of the second switch tube group, and another selection terminal of the second selection switch is connected to a collector of the second switch tube group;
the base electrodes of a plurality of switch tubes of the TX switch module are connected with a switch;
the emitting electrodes of the first switch tube group are respectively connected with one ends of a plurality of TX metal wires in a first area, the other ends of the plurality of TX metal wires in the first area are connected with the input end of the driving Integrated Circuit (IC), the emitting electrodes of the second switch tube group are respectively connected with one ends of a plurality of TX metal wires in a second area, the other ends of the plurality of TX metal wires in the second area are connected with the input end of the driving Integrated Circuit (IC), each metal wire in the plurality of TX metal wires is electrically connected with one touch area in the first group of touch areas in the plurality of touch areas through one touch hole, and the plurality of TX metal wires in the second area are connected with the second group of touch areas in the plurality of touch areas.
4. The touch display screen driving circuit according to claim 2, wherein the driving circuit further comprises: the power supply signal DE and the selection switch specifically comprise:
the selector switch includes a third selector switch and a fourth selector switch, and the RX switch module includes: a third switch tube group and a fourth switch tube group,
the power supply signal DO is connected to a common terminal of the third selection switch, one selection terminal of the third selection switch is connected to an input terminal of the RX amplification circuit, an output terminal of the RX amplification circuit is connected to a collector of the third switching tube group, and another selection terminal of the third selection switch is connected to a collector of the third switching tube group;
the power signal DE is connected to a common terminal of the fourth selection switch, one selection terminal of the fourth selection switch is connected to an input terminal of the RX amplification circuit, an output terminal of the RX amplification circuit is connected to a collector of the fourth switch tube group, and another selection terminal of the fourth selection switch is connected to a collector of the fourth switch tube group;
the base electrodes of a plurality of switch tubes of the RX switch module are connected with a switch;
the emitting electrodes of the third switch tube group are respectively connected with one ends of a plurality of RX metal wires in a third area, the other ends of the plurality of RX metal wires in the third area are connected with the input end of the drive integrated circuit IC, the emitting electrodes of the fourth switch tube group are respectively connected with one ends of a plurality of TX metal wires in a fourth area, the other ends of the plurality of RX metal wires in the fourth area are connected with the input end of the drive integrated circuit IC, each metal wire in the plurality of RX metal wires is electrically connected with one touch area of the plurality of touch areas through one touch hole, the touch areas connected with each RX metal wire are different, the plurality of RX metal wires in the third area are connected with a third group of touch areas in the plurality of touch areas, and the plurality of RX metal wires in the fourth area are connected with a fourth group of touch areas in the plurality of touch areas.
5. The touch display screen driving circuit according to any one of claims 2-4,
the switch tube is as follows: and a thin film transistor.
6. The touch display screen driving circuit according to any one of claims 2-4,
the TX amplifying circuit is a booster circuit.
7. The touch display screen driving circuit according to any one of claims 2-4,
the RX amplifying circuit is a booster circuit.
8. The touch display screen driving circuit according to claim 3 or 4,
the selection switch is as follows: an alternative switch.
9. A touch display comprising the touch display screen driving circuit according to any one of claims 1 to 8.
10. An electronic device, wherein the electronic device comprises a touch display screen and a touch display screen driving circuit according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810621582.3A CN109002202B (en) | 2018-06-15 | 2018-06-15 | Touch display screen driving circuit, touch display and electronic device |
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| CN201810621582.3A CN109002202B (en) | 2018-06-15 | 2018-06-15 | Touch display screen driving circuit, touch display and electronic device |
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| CN109002202A CN109002202A (en) | 2018-12-14 |
| CN109002202B true CN109002202B (en) | 2021-05-14 |
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| CN110113482B (en) * | 2019-04-18 | 2021-05-07 | 惠州Tcl移动通信有限公司 | Display screen power supply method and device, storage medium and mobile terminal |
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| CN106959774A (en) * | 2016-01-08 | 2017-07-18 | 禾瑞亚科技股份有限公司 | Controller applied to Touch Screen |
| CN107783689A (en) * | 2016-08-31 | 2018-03-09 | 乐金显示有限公司 | Driving chip, circuit film, chip-shaped drive circuit and display device on film |
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| TWI493875B (en) * | 2012-07-25 | 2015-07-21 | Egalax Empia Technology Inc | Driving signal generating system |
| KR102511952B1 (en) * | 2016-01-18 | 2023-03-23 | 삼성디스플레이 주식회사 | Touch screen pannel and driving method of the same |
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| CN105009049A (en) * | 2013-03-13 | 2015-10-28 | 3M创新有限公司 | Capacitive-based touch apparatus and method therefor, with reduced interference |
| CN106959774A (en) * | 2016-01-08 | 2017-07-18 | 禾瑞亚科技股份有限公司 | Controller applied to Touch Screen |
| CN107783689A (en) * | 2016-08-31 | 2018-03-09 | 乐金显示有限公司 | Driving chip, circuit film, chip-shaped drive circuit and display device on film |
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