CN110554807A - touch device and electronic equipment - Google Patents

touch device and electronic equipment Download PDF

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Publication number
CN110554807A
CN110554807A CN201910865075.9A CN201910865075A CN110554807A CN 110554807 A CN110554807 A CN 110554807A CN 201910865075 A CN201910865075 A CN 201910865075A CN 110554807 A CN110554807 A CN 110554807A
Authority
CN
China
Prior art keywords
touch
circuit
control
liquid crystal
resistive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910865075.9A
Other languages
Chinese (zh)
Inventor
程义
李伟进
曾云洪
王天伦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201910865075.9A priority Critical patent/CN110554807A/en
Publication of CN110554807A publication Critical patent/CN110554807A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/9645—Resistive touch switches

Abstract

The application relates to a touch device and electronic equipment, which comprise a touch screen, a control circuit, a change-over switch, a resistance touch circuit and a capacitance touch circuit, wherein the resistance touch circuit and the capacitance touch circuit are connected with the touch screen, and the control circuit is respectively connected with the resistance touch circuit and the capacitance touch circuit through the change-over switch; the control circuit is used for receiving the control parameters, generating switching control signals according to the control parameters and sending the switching control signals to the switch; the switch is used for controlling the on-off of the resistance touch control circuit and the on-off of the capacitance touch control circuit according to the received switching control signal. The resistance touch control circuit and the capacitance touch control circuit share one touch control screen, and the switch can be controlled by the control circuit to select the resistance touch control circuit or the capacitance touch control circuit to be switched on, so that the touch control mode is switched, and the cost is effectively reduced.

Description

Touch device and electronic equipment
Technical Field
the present disclosure relates to electronic technologies, and particularly to a touch device and an electronic apparatus.
Background
With the emergence of human-computer interaction modes, touch technology is applied more and more widely in daily life, and is mainly applied to inquiry of public information, leadership and office, industrial control, military command, electronic games, song and dish ordering, multimedia teaching, real estate pre-sale and the like.
Due to the limitation of application scenarios, one touch screen can only realize one touch mode of resistive touch and capacitive touch, and a scenario requiring two touch modes can be realized only by 2 touch screen devices, which increases the cost.
Disclosure of Invention
Therefore, it is necessary to provide a touch device and an electronic device capable of effectively reducing the cost, aiming at the problem that the traditional scene requiring two touch modes often requires 2 touch screen devices and thus the cost is high.
a touch device comprises a touch screen, a control circuit, a selector switch, a resistance touch circuit and a capacitance touch circuit, wherein the resistance touch circuit and the capacitance touch circuit are connected with the touch screen, and the control circuit is respectively connected with the resistance touch circuit and the capacitance touch circuit through the selector switch;
The control circuit is used for receiving the control parameters, generating switching control signals according to the control parameters and sending the switching control signals to the switch;
The switch is used for controlling the on-off of the resistance touch control circuit and the on-off of the capacitance touch control circuit according to the received switching control signal.
In one embodiment, the touch screen includes a liquid crystal panel, a liquid crystal interface, a resistive touch pad and a capacitive touch pad, the resistive touch pad and the capacitive touch pad are integrally disposed on the liquid crystal panel, the resistive touch pad is connected to the resistive touch circuit through the liquid crystal interface, and the capacitive touch pad is connected to the capacitive touch circuit through the liquid crystal interface.
In one embodiment, the liquid crystal interface comprises a resistive touch liquid crystal interface and a capacitive touch liquid crystal interface, and the resistive touch panel is connected with the resistive touch circuit through the resistive touch liquid crystal interface; the capacitive touch panel is connected with the capacitive touch circuit through the capacitive touch liquid crystal interface.
In one embodiment, the resistive touch pad and the capacitive touch pad are stacked on the liquid crystal panel, the resistive touch pad and the capacitive touch pad are disposed above the liquid crystal panel, and the capacitive touch pad is disposed below the resistive touch pad.
In one embodiment, the touch device further includes a spacer layer disposed between the capacitive touch pad and the resistive touch pad.
In one embodiment, the change-over switch comprises a control end, a fixed contact, a first movable contact and a second movable contact, wherein one end of the control end is connected with the control circuit, the other end of the control end is connected with the fixed contact, the first movable contact is connected with the resistance touch circuit, and the second movable contact is connected with the capacitance touch circuit.
In one embodiment, the control circuit is used for receiving a control parameter input according to the prompt information of the touch screen, generating a switching control signal according to the control parameter, and sending the switching control signal to the switch.
In one embodiment, the touch device further includes a control button, and the control button is connected to the control circuit.
In one embodiment, the resistive touch circuit and the capacitive touch circuit are integrated on the same circuit board.
An electronic device comprises the touch device.
The touch device and the electronic equipment comprise a touch screen, a control circuit, a change-over switch, a resistance touch circuit and a capacitance touch circuit, wherein the resistance touch circuit and the capacitance touch circuit are connected with the touch screen, and the control circuit is respectively connected with the resistance touch circuit and the capacitance touch circuit through the change-over switch; the control circuit is used for receiving the control parameters, generating switching control signals according to the control parameters and sending the switching control signals to the switch; the switch is used for controlling the on-off of the resistance touch control circuit and the on-off of the capacitance touch control circuit according to the received switching control signal. The resistance touch control circuit and the capacitance touch control circuit share one touch control screen, and the switch can be controlled by the control circuit to select the resistance touch control circuit or the capacitance touch control circuit to be switched on, so that the touch control mode is switched, and the cost is effectively reduced.
Drawings
FIG. 1 is a block diagram of a touch device according to an embodiment;
FIG. 2 is a block diagram of a touch device according to another embodiment;
Fig. 3 is a block diagram of a touch device according to another embodiment.
Detailed Description
In one embodiment, as shown in fig. 1, a touch device includes a touch screen 110, a control circuit 120, a switch 130, a resistive touch circuit 140 and a capacitive touch circuit 150, wherein the resistive touch circuit 140 and the capacitive touch circuit 150 are connected to the touch screen 110, and the control circuit 120 is connected to the resistive touch circuit 140 and the capacitive touch circuit 150 through the switch 130; the control circuit 120 is configured to receive the control parameter, generate a switching control signal according to the control parameter, and send the switching control signal to the switch 130; the switch 130 is used for controlling the on/off of the resistive touch circuit 140 and the on/off of the capacitive touch circuit 150 according to the received switching control signal.
Particularly, a resistive touch screen is mostly used in factory workshops, and a capacitive touch screen is mostly used in vehicles, families, public places, entertainment places and other places; the resistive touch screen needs pressure to enable all layers of the screen to be contacted, and can be operated by fingers, nails, touch pens and the like; capacitive touch screens can be activated by the finest contact from a charged finger surface. In the application, a touch screen is compatibly designed, a change-over switch is added, the touch screen is respectively connected with a resistance touch circuit and a capacitance touch circuit and shares the same touch screen device, and a control parameter is sent to a control circuit, the control circuit generates a change-over control signal according to the received control parameter, so that the circuit connected with the resistance touch circuit is controlled to be conducted, or the circuit connected with the capacitance touch circuit is controlled to be conducted; when the circuit connected with the resistance touch circuit is conducted, the circuit correspondingly connected with the capacitance touch circuit is disconnected, the touch device is switched to a resistance touch mode, when the circuit connected with the capacitance touch circuit is conducted, the circuit correspondingly connected with the resistance touch circuit is disconnected, the touch device is switched to a capacitance touch mode, and therefore the same touch screen device meets two touch modes.
According to the touch device, the resistance touch circuit and the capacitance touch circuit share one touch screen, and the switch can be controlled by the control circuit to select the resistance touch circuit or the capacitance touch circuit to be switched on, so that the touch mode is switched, and the cost is effectively reduced.
In one embodiment, as shown in fig. 2, the touch screen includes a liquid crystal panel 112, a liquid crystal interface 114, a resistive touch pad 116 and a capacitive touch pad 118, the resistive touch pad 116 and the capacitive touch pad 118 are integrally disposed on the liquid crystal panel 112, the resistive touch pad 116 is connected to the resistive touch circuit through the liquid crystal interface 114, and the capacitive touch pad 118 is connected to the capacitive touch circuit through the liquid crystal interface 114.
Specifically, the touch screen is subjected to compatible design, namely a capacitive touch panel and a resistive touch panel are integrated and arranged on a liquid crystal panel, a liquid crystal interface is subjected to compatible design, the resistive touch panel and the capacitive touch panel are respectively connected with the liquid crystal interface, the resistive touch circuit and the capacitive touch circuit are respectively connected through the liquid crystal interface, and two touch modes of capacitance and resistance can be realized through the touch screen.
in one embodiment, the liquid crystal interface comprises a resistive touch liquid crystal interface and a capacitive touch liquid crystal interface, and the resistive touch panel is connected with the resistive touch circuit through the resistive touch liquid crystal interface; the capacitive touch panel is connected with the capacitive touch circuit through the capacitive touch liquid crystal interface.
Specifically, compatible design is carried out in the liquid crystal interface, a resistance touch signal and a capacitance touch signal can be identified, the liquid crystal interface comprises a resistance touch liquid crystal interface and a capacitance touch liquid crystal interface, when the touch mode of the user switching touch device is resistance touch, the user carries out corresponding operation on the liquid crystal panel, the operation signal is sent to the resistance touch circuit through the resistance touch liquid crystal interface, similarly, when the touch mode of the user switching touch device is capacitance touch, the user carries out corresponding operation on the liquid crystal panel, and the operation signal is sent to the capacitance touch circuit through the capacitance touch liquid crystal interface. Furthermore, the liquid crystal interface also comprises a liquid crystal display interface, and the liquid crystal display interface is connected with the liquid crystal panel. The liquid crystal display interface is connected with the control circuit.
In one embodiment, the resistive touch pad and the capacitive touch pad are stacked on the liquid crystal panel, the resistive touch pad and the capacitive touch pad are disposed above the liquid crystal panel, and the capacitive touch pad is disposed below the resistive touch pad. Specifically, because the resistance touch control working principle is considered, the resistance touch control plate is arranged at the top, and the resistance touch control plate and the capacitance touch control plate are arranged in a superposed manner, the area of the touch control screen can be reduced, and the cost is effectively reduced.
In one embodiment, the touch device further includes a spacer layer disposed between the capacitive touch pad and the resistive touch pad. Specifically, the spacing layer is arranged between the capacitive touch pad and the resistive touch pad, so that mutual interference between the capacitive touch pad and the resistive touch pad can be prevented, and the touch accuracy is improved.
In one embodiment, as shown in fig. 3, the switch includes a control terminal, a first movable contact, a second movable contact and a fixed contact, wherein one end of the control terminal is connected to the control circuit, the other end of the control terminal is connected to the fixed contact, the first movable contact is connected to the resistive touch circuit, and the second movable contact is connected to the capacitive touch circuit.
Specifically, a control end of the change-over switch receives a change-over control signal of the control circuit, and controls the stationary contact to be connected with the first movable contact or the second movable contact, and the change-over control signal of the control circuit is sent by user operation. Further, it can be understood that, in this embodiment, the switch may be a relay, the corresponding control terminal is a coil, and the switch may also be a switch tube, and it can be understood that, when the touch screen is resistive touch, the control circuit controls the switch circuit related to capacitive touch to be disconnected through the switch, and when the touch screen is capacitive touch, the control circuit controls the switch circuit related to resistive touch to be disconnected through the switch.
In one embodiment, the control circuit is used for receiving a control parameter input according to the prompt information of the touch screen, generating a switching control signal according to the control parameter, and sending the switching control signal to the switch. Specifically, a virtual control button is arranged on a display interface of the touch screen, and a user clicks the virtual control button to send a control parameter to the control circuit. Furthermore, the touch device also comprises a control button, and the control button is connected with the control circuit. Namely, a mechanical control button is set, and a user sends control parameters to the control circuit by operating the mechanical control button.
In one embodiment, the resistive touch circuit and the capacitive touch circuit are integrated on the same circuit board. Specifically, the resistive touch circuit and the capacitive touch circuit are integrated, and in the embodiment, the resistive touch circuit and the capacitive touch circuit are integrated on the same PCB, so that the cost can be reduced.
In a detailed embodiment, the touch device comprises a liquid crystal panel, a resistive touch liquid crystal interface, a capacitive touch liquid crystal interface, a liquid crystal display interface, a resistive touch panel, a spacer layer, a capacitive touch panel, a control button, a control circuit, a switch, a resistive touch circuit and a capacitive touch circuit, the touch panel is connected with the control circuit, the control circuit is respectively connected with the resistive touch circuit and the capacitive touch circuit through the switch, the switch comprises a control end, a first movable contact, a second movable contact and a fixed contact, the control end is connected with the control circuit and the fixed contact, the first movable contact is connected with the resistive touch circuit, the second movable contact is connected with the capacitive touch circuit, the resistive touch panel and the capacitive touch panel are integrally arranged on the liquid crystal panel, the resistive touch liquid crystal interface, the capacitive touch liquid crystal interface and the liquid crystal display interface are connected with the liquid crystal panel, the liquid crystal display interface, the resistance touch control board is connected with the resistance touch control circuit through a resistance touch control liquid crystal interface; the capacitive touch control panel is connected with the capacitive touch control circuit through the capacitive touch control liquid crystal interface, the resistive touch control panel and the capacitive touch control panel are arranged on the liquid crystal panel in an overlapped mode, the resistive touch control panel and the capacitive touch control panel are arranged above the liquid crystal panel, the capacitive touch control panel is arranged below the resistive touch control panel, a spacing layer is arranged between the capacitive touch control panel and the resistive touch control panel, and the control button is connected with the control circuit.
The touch device is provided with a mechanical control button or a virtual control button on a display interface, and is used for controlling a change-over switch so as to realize the on-off of a touch circuit, the on-off of a circuit of the change-over switch connecting a resistance touch circuit and a capacitance touch circuit can be independently controlled, when the resistance touch is set, the control circuit sends an instruction through a signal line to conduct the circuit of the change-over switch connecting the resistance touch circuit, other switch circuits are disconnected, and at the moment, the touch device is switched to a resistance touch mode; when the capacitive touch control is set, the control circuit sends an instruction through the signal line, the circuit connected with the capacitive touch control module in the change-over switch is conducted, other switch circuits are disconnected, and the touch control device is switched to a capacitive touch control mode; the touch screen can be switched according to different application scenes, user scenes are enriched, the touch modes can be switched according to the change of the environment at any time, user experience is enhanced, and production cost is saved.
In one embodiment, an electronic device includes the touch device.
For the definition of the electronic device, reference may be made to the above definition of the touch device, which is not described herein again.
According to the electronic equipment, the resistance touch control circuit and the capacitance touch control circuit share one touch control screen, and the switch can be controlled by the control circuit to select the resistance touch control circuit or the capacitance touch control circuit to be switched on, so that the touch control mode is switched, and the cost is effectively reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A touch device is characterized by comprising a touch screen, a control circuit, a selector switch, a resistance touch circuit and a capacitance touch circuit, wherein the resistance touch circuit and the capacitance touch circuit are connected with the touch screen, and the control circuit is respectively connected with the resistance touch circuit and the capacitance touch circuit through the selector switch;
The control circuit is used for receiving control parameters, generating switching control signals according to the control parameters and sending the switching control signals to the selector switch;
The switch is used for controlling the on-off of the resistance touch control circuit and the on-off of the capacitance touch control circuit according to the received switching control signal.
2. The device according to claim 1, wherein the touch screen comprises a liquid crystal panel, a liquid crystal interface, a resistive touch pad and a capacitive touch pad, the resistive touch pad and the capacitive touch pad are integrally disposed on the liquid crystal panel, the resistive touch pad is connected to the resistive touch circuit through the liquid crystal interface, and the capacitive touch pad is connected to the capacitive touch circuit through the liquid crystal interface.
3. The device according to claim 2, wherein the liquid crystal interface comprises a resistive touch liquid crystal interface and a capacitive touch liquid crystal interface, and the resistive touch pad is connected to the resistive touch circuit through the resistive touch liquid crystal interface; the capacitance touch control panel is connected with the capacitance touch control circuit through the capacitance touch control liquid crystal interface.
4. The device according to claim 3, wherein the resistive touch pad and the capacitive touch pad are stacked on the liquid crystal panel, the resistive touch pad and the capacitive touch pad are disposed above the liquid crystal panel, and the capacitive touch pad is disposed below the resistive touch pad.
5. The device of claim 4, further comprising a spacer layer disposed between the capacitive touchpad and the resistive touchpad.
6. The apparatus of claim 1, wherein the switch comprises a control terminal, a fixed contact, a first movable contact and a second movable contact, wherein one end of the control terminal is connected to the control circuit, the other end of the control terminal is connected to the fixed contact, the first movable contact is connected to the resistive touch circuit, and the second movable contact is connected to the capacitive touch circuit.
7. The device of claim 1, wherein the control circuit is configured to receive a control parameter input according to the touch screen prompt information, generate a switching control signal according to the control parameter, and send the switching control signal to the switch.
8. The device of claim 1, further comprising a control button, the control button coupled to the control circuit.
9. The apparatus of claim 1, wherein the resistive touch circuit and the capacitive touch circuit are integrated on a same circuit board.
10. An electronic device comprising the touch device according to any one of claims 1 to 9.
CN201910865075.9A 2019-09-12 2019-09-12 touch device and electronic equipment Pending CN110554807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910865075.9A CN110554807A (en) 2019-09-12 2019-09-12 touch device and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910865075.9A CN110554807A (en) 2019-09-12 2019-09-12 touch device and electronic equipment

Publications (1)

Publication Number Publication Date
CN110554807A true CN110554807A (en) 2019-12-10

Family

ID=68740160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910865075.9A Pending CN110554807A (en) 2019-09-12 2019-09-12 touch device and electronic equipment

Country Status (1)

Country Link
CN (1) CN110554807A (en)

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