CN111240529B - Touch scanning method and device, chip, storage medium and display device - Google Patents
Touch scanning method and device, chip, storage medium and display device Download PDFInfo
- Publication number
- CN111240529B CN111240529B CN202010240922.5A CN202010240922A CN111240529B CN 111240529 B CN111240529 B CN 111240529B CN 202010240922 A CN202010240922 A CN 202010240922A CN 111240529 B CN111240529 B CN 111240529B
- Authority
- CN
- China
- Prior art keywords
- touch
- scanning
- original data
- contact area
- areas
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000004590 computer program Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 8
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- 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)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a touch scanning method, a chip, a storage medium and a display device, wherein the touch scanning method comprises the following steps: when a touch signal is acquired, scanning all touch areas at a first scanning frequency, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to scanning original data; scanning the contact area at a first scanning frequency, and transmitting scanning original data to a terminal control unit TMCU so as to execute touch operation according to the scanning original data; and scanning the non-contact area at a second scanning frequency, and transmitting the scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency. The touch scanning method, the chip, the storage medium and the display device provided by the invention can reduce the touch response time and improve the user experience.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a touch scanning method and device, a chip, a storage medium, and a display device.
Background
The market size of IWB (LCD interactive electronic whiteboard) is rapidly growing, and is considered as the main technical medium for integrating information technology and discipline in future classroom teaching. Currently, infrared touch technology has many disadvantages in terms of touch sensitivity, writing precision, appearance weight and the like. Capacitive touch technology is gradually replacing infrared touch because of its better touch user experience.
The capacitive Touch screen can be divided into an external Touch screen (Add On Mode Touch Panel), a surface-covered Touch screen (On Cell Touch Panel) and an embedded Touch screen (In-cell Touch Panel) according to the composition structure, wherein the embedded Touch screen is formed by arranging Touch electrodes inside a display screen, so that the whole thickness of a module can be reduced, the manufacturing cost is reduced, and the capacitive Touch screen is accepted by customers more and more. The response time of the touch screen is an important performance index of touch, meanwhile, the touch response time is a part of the system response time, and the touch panel with slow response time has the conditions of short pause and no detection of moving action, so that the user experience is seriously affected.
At present, in order to achieve better user experience (writing by an active pen), the Sensor Pitch cannot be designed to be larger, so that the number of sensors is large, and the touch scanning mode of the current touch screen is to scan the touch capacitance change line by line or column by column full screen according to the sequence of the touch screen from top to bottom or from bottom to top, so that the touch coordinate position is locked, and the touch is realized.
Disclosure of Invention
The invention aims to provide a touch scanning method, a chip, a storage medium and a display device, which can reduce touch response time and improve user experience.
The technical scheme provided by the invention is as follows:
the touch scanning method is applied to a display touch panel, the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a micro-processing unit (MCU), and each touch area is connected with a terminal control unit (TMCU); the method comprises the following steps:
when a touch signal is acquired, scanning all touch areas at a first scanning frequency, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to scanning original data;
scanning the contact area at the first scanning frequency, and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
and scanning the non-contact area at a second scanning frequency, and transmitting scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency.
Illustratively, the method further comprises:
and when the full screen has no touch signal, scanning all the touch areas at the second scanning frequency.
In an exemplary embodiment, the method includes scanning the contactless region at a second scanning frequency, and transmitting the scanned original data to a micro processing unit MCU corresponding to the contactless region, and specifically includes:
the MCU judges whether touch signals exist in the scanning original data of the non-contact area or not;
when no touch signal exists in the scanning original data of the non-contact area, reporting preset scanning data to a micro processing unit MCU, wherein the preset scanning data comprises the following steps: a group of scanning original data of the non-contact area and a non-touch data instruction.
In an exemplary embodiment, the method scans the contactless region at a second scanning frequency, and sends scanning data to a micro processing unit MCU corresponding to the contactless region, and further includes:
when the scanning original data of the non-contact area comprises a touch signal, reporting the scanning original data of the non-contact area to the terminal control unit TMCU;
and the terminal control unit TMCU controls the contactless region to be scanned at the first scanning frequency, processes the received scanning original data, and performs corresponding touch operation from the report point to the host.
In an exemplary embodiment, in the method, when the touch signal is obtained, all the touch areas are scanned at a first scanning frequency, and the terminal control unit TMCU determines, according to the scanning original data sent by each current touch area, that the touch area where the touch point is located is a contact area, and that an area of the touch panel other than the contact area is a non-contact area, where the touch point is located, further including:
when a touch signal is acquired, while the terminal control unit TMCU determines that a touch area where a touch point is located is a contact area and an area except the contact area in the touch panel is a non-contact area according to the scanning original data sent by each current touch area, the terminal control unit TMCU processes the scanning original data sent by each current touch area and reports the point to a host to execute corresponding touch operation.
Illustratively, the first scan frequency is 120HZ; the second scanning frequency is 60HZ.
The touch scanning device is applied to a display touch panel, the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a micro-processing unit (MCU), and each touch area is connected with a terminal control unit (TMCU); the device comprises:
the first scanning module is used for scanning all the touch areas at a first scanning frequency when the touch signals are acquired, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to the scanning original data;
the second scanning module is used for scanning the contact area at the first scanning frequency and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
and the third scanning module is used for scanning the non-contact area at a second scanning frequency and transmitting the scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency.
A computer readable storage medium, wherein the computer readable storage medium has stored thereon a computer program which when executed by a processor implements a display touch scanning method as described above.
The display touch scanning chip comprises a processor, a memory and a computer program stored in the memory and running on the processor, wherein the display touch scanning method is realized when the processor executes the computer program.
A display device comprises a display touch panel and the display touch scanning chip.
Illustratively, the display device includes an interactive electronic whiteboard.
The beneficial effects brought by the invention are as follows:
in the scheme, the display touch panel is subjected to touch scanning with the regional and frequency division rate, so that the data transmission time can be reduced, the data processing time can be reduced, the Host (Host) is rapidly informed, the effect of line follow-up is achieved, and the user experience is improved.
Drawings
FIG. 1 shows a schematic diagram of an In-cell Touch & Display arrangement of 86 "IWB" In a related design;
FIG. 2 shows a schematic diagram of an SRIC PIN for 86 "IWB" in a related design;
FIG. 3 is a schematic diagram showing a touch scanning manner of a touch display panel according to a related design;
fig. 4 is a schematic diagram of a touch display panel structure to which the touch display panel scanning method according to an embodiment of the invention is applied;
FIG. 5 is a flowchart of a touch display panel scanning method according to an embodiment of the invention;
FIG. 6 is a schematic diagram illustrating a time-sharing driving method for performing 120Hz touch scanning in a touch display panel scanning method according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a time-sharing driving method for performing 60Hz touch scanning in a touch display panel scanning method according to an embodiment of the present invention;
FIG. 8 illustrates a schematic diagram of a storage medium provided by an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a display touch scan chip according to an embodiment of the disclosure;
fig. 10 is a schematic diagram of a display device according to an embodiment of the disclosure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Before describing the touch scanning method and apparatus, the chip, the storage medium, and the display device provided by the present invention in detail, the following description is necessary for the related art:
the market size of IWB (LCD interactive electronic whiteboard) is rapidly growing, and is considered as the main technical medium for integrating information technology and discipline in future classroom teaching. Currently, infrared touch technology has many disadvantages in terms of touch sensitivity, writing precision, appearance weight and the like. Capacitive touch technology is gradually replacing infrared touch because of its better touch user experience.
The capacitive Touch screen can be divided into an external Touch screen (Add On Mode Touch Panel), a surface-covered Touch screen (On Cell Touch Panel) and an embedded Touch screen (In-cell Touch Panel) according to the composition structure, wherein the embedded Touch screen is formed by arranging Touch electrodes inside a display screen, so that the whole thickness of a module can be reduced, the manufacturing cost is reduced, and the capacitive Touch screen is accepted by customers more and more. The response time of the touch screen is an important performance index of touch, meanwhile, the touch response time is a part of the system response time, and the touch panel with slow response time has the conditions of short pause and no detection of moving action, so that the user experience is seriously affected.
At present, touch control scanning modes of the touch control screen are all to scan touch control capacitance changes full screen row by row or column by column according to the sequence of the touch control screen from top to bottom or from bottom to top, and then the touch control coordinate position is locked, so that touch control is realized. In order to achieve a better user experience (active pen writing), the IWB product cannot be designed to be larger, taking 75inch as an example, if the Sensor Pitch is 7, the number of Sensor patterns is at least 32160 channels, if the Sensor Pitch is 6, the number of Sensor patterns is at least 44928 channels, the number increases by almost 10000 times, the more the number of sensors, the longer the time needed to transfer TMCU (Terminal Monitor And Control Unit), and the longer the time to process data. For IWB products, especially large-size IWB products, the user experience is severely impacted. The following examples are given:
the touch and display functions in the touch display panel are independently controlled by two chips, and the TDDI, i.e., the touch and display driver integration (Touch and Display Driver Integration), integrates the touch chip and the display chip into a single chip. Taking the current mainstream IWB size of 86 "as an example, fig. 1 shows a circuit arrangement of 86" in-cell Touch & Display (in-cell Touch Display panel). As shown in the figure, the IWB includes a plurality of touch electrodes arranged in an array, each touch electrode is connected with a touch signal line, the touch signal line is connected with an SRIC (synchronous rectification integrated circuit), the SRIC is a scheme of display and touch integration, and IC Pin (driving circuit Pin) is arranged as 480+936, refer to fig. 2.Touch screen employs a 1:12MUX (multiplexer), 936CH, which requires 78CH AFE (rectifying/feedback Unit) total of Sensor patterns: 936 x 48= 44928, and the data transmission amount is 44928 x 14bit x 120 hz=800 Mbps. Therefore, the number of sensors in the array is large, and is not fully shown in the figure, but only by way of example, fig. 3 is a conventional touch scanning and amplifying method, and column-by-column scanning is adopted. The mode of carrying out touch scanning line by line or column by column on the full screen has long data transmission time and long data processing time due to the fact that the number of sensors is large, and user experience is affected.
In order to solve the technical problems, embodiments of the present invention provide a touch scanning method, a touch scanning device, a computer readable storage medium, a display touch scanning chip, and a display device, which can reduce touch response time and improve user experience.
The touch scanning method provided by the embodiment of the invention is applied to a display touch panel, wherein the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a micro-processing unit (MCU), and each touch area is connected with a terminal control unit (TMCU); the method comprises the following steps:
when the full screen has no touch signal, scanning all the touch areas with the second scanning frequency;
when a touch signal is acquired, scanning all touch areas at a first scanning frequency, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to scanning original data;
scanning the contact area at the first scanning frequency, and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
and scanning the non-contact area at a second scanning frequency, and transmitting scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency.
In the above method, the touch display panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a separate micro control unit MCU, for example, each touch area of the touch display panel in fig. 4 is correspondingly connected with a corresponding SRIC, the corresponding micro control unit MCU is inside the SRIC, for example, the touch display panel includes a first touch area 10 and a second touch area 20, the touch scanning line 11 of the first touch area 10 is connected with a first SRIC12, the touch scanning line 21 of the second touch area 20 is connected with a second SRIC22, and all the touch areas are connected with a terminal control unit TMCU; the specific touch scanning method comprises the following steps:
when the touch display panel is turned off, full-screen scanning is carried out on the touch display panel at a second scanning frequency; when a finger or an active pen is detected, immediately performing full-screen scanning on the touch display panel at a first scanning frequency, at this time, transmitting collected Raw data (scanning original data) to a terminal control unit TMCU by using SRICs corresponding to all touch areas, determining a touch area where a touch point is located as a contact area according to a point reporting area obtained after algorithm processing by using the terminal control unit TMCU, and transmitting control signals to SRICs of non-contact areas where touch or writing is not possible at this time, so that the areas are scanned at a second scanning frequency, the SRICs of the non-contact areas receive Raw data to perform data processing in an internal micro control unit MCU, and the contact areas are scanned at the first scanning frequency, transmitting the Raw data received by the SRICs of the contact areas to the terminal control unit TMCU, processing the received scanning original data by using the terminal control unit TMCU, and executing corresponding touch operation from the point reporting to a host.
In this way, in the touch scanning method provided by the embodiment of the invention, the first scanning frequency is 120Hz, the second scanning frequency is 60Hz, when no touch is performed, the touch scanning frequency is switched to 60Hz, when no touch is performed, the touch scanning frequency is immediately switched to 120Hz and scanned in different areas, the contactless area only scans 60Hz, the micro control unit MCU inside the single SRIC corresponding to the contactless area can perform simple data processing, all Raw data are not sent to the terminal control unit TMCU, only Raw data of the contact area are quickly transmitted to the terminal control unit TMCU, therefore, the data transmission time can be shortened, and the processing time of Raw data received by the terminal control unit TMCU and the time of reporting points to a Host (Host) can also be greatly shortened.
In an exemplary embodiment, the method scans the contactless region at a second scanning frequency, and sends the scanned original data to a micro processing unit MCU corresponding to the contactless region, which specifically includes:
the MCU judges whether touch signals exist in the scanning original data of the non-contact area or not;
when no touch signal exists in the scanning original data of the non-contact area, reporting preset scanning data to a micro processing unit MCU, wherein the preset scanning data comprises the following steps: a group of scanning original data of the non-contact area and a non-touch data command (0).
In the above scheme, after receiving the Raw data, the SRIC of the contactless region performs simple data processing, and if the contactless region has no touch signal, only single Raw data without touch and a data command without touch are transmitted to the terminal control unit TMCU, so that the data transmission time is shortened.
In an exemplary embodiment, the method scans the contactless region at a second scanning frequency, and sends scanning data to a micro processing unit MCU corresponding to the contactless region, and further includes:
when the scanning original data of the non-contact area comprises a touch signal, reporting the scanning original data of the non-contact area to the terminal control unit TMCU;
and the terminal control unit TMCU controls the contactless region to be scanned at the first scanning frequency, processes the received scanning original data, and performs corresponding touch operation from the report point to the host.
By adopting the scheme, after the SRIC of the non-contact area receives the Raw data, simple data processing is performed, if the non-contact area detects a touch signal, the Raw data is transmitted to the terminal control unit TMCU, the terminal control unit TMCU controls the non-contact area to be scanned at the first scanning frequency, the received scanning original data is processed, and corresponding touch operation is performed from the reporting point to the host.
In addition, in an exemplary embodiment, in the method, when the touch signal is acquired, all the touch areas are scanned at a first scanning frequency, and the terminal control unit TMCU determines, according to the scanning original data sent by each current touch area, that a touch area where a touch point is located is a contact area, and that an area of the touch panel other than the contact area is a non-contact area, where the touch area is located, further includes:
when a touch signal is acquired, while the terminal control unit TMCU determines that a touch area where a touch point is located is a contact area and an area except the contact area in the touch panel is a non-contact area according to the scanning original data sent by each current touch area, the terminal control unit TMCU processes the scanning original data sent by each current touch area and reports the point to a host to execute corresponding touch operation.
By adopting the scheme, when the touch display panel is turned off, full-screen scanning is carried out on the touch display panel at the second scanning frequency; when a finger or an active pen is detected, immediately performing full-screen scanning on the touch display panel at a first scanning frequency, at this time, transmitting collected Raw data (scanning original data) to a terminal control unit TMCU by using SRICs corresponding to all touch areas, transmitting a report to a host (host) to perform corresponding touch actions by using the terminal control unit TMCU through algorithm processing, and after determining a contact area and a non-contact area, re-scanning areas at different scanning frequencies.
In addition, it should be noted that TDDI (Touch and Display Driver Integration, integrated touch and display driver) products generally employ a LHB (Long Horizontal Blanking) scanning scheme, i.e. one frame of display scan is divided into a plurality of display time periods, one frame of touch scan is divided into a plurality of touch time periods, and the display time periods and the touch time periods are interleaved. For example, one frame of display scan may be divided into a plurality of display periods, one frame of touch scan may be divided into a plurality of touch periods, and the touch periods and the display periods may be staggered. For example, two frames of touch scans may be performed in one frame of display scan, in which case, for example, the frequency of the display scan is 60Hz, and the frequency of the touch scan is 120Hz.
In the touch scanning method provided by the embodiment of the invention, as shown in fig. 6, when the touch scanning is performed at the first scanning frequency (e.g. 120 Hz), one frame of display scanning is divided into a plurality of display time periods, one frame of touch scanning is divided into a plurality of touch time periods, the touch time periods and the display time periods can be performed in an interlaced manner, for example, two frames of touch scanning can be performed in one frame of display scanning, in which case, for example, the frequency of the display scanning is 60Hz, and the frequency of the touch scanning is 120Hz; as shown in fig. 7, when the touch scanning is performed at the second scanning frequency (e.g., 60 Hz), the display scanning of one frame may be divided into a plurality of display time periods, the touch scanning of one frame is divided into one touch time period, the plurality of display time periods are performed first, and then the touch scanning is performed in the last time period, that is, only in the last time period, where the time period may be a Blanking time, and the Blanking time refers to a time period from the end of one frame display to the beginning of the next frame display, where no display data is transmitted in the Blanking time.
In addition, it should be noted that the touch scanning method provided by the embodiment of the invention can be applied to various touch display panels, and is particularly suitable for IWB products. The main application environment of the IWB product is teaching, the application of kindergarten and primary school is wider, the main writing area of the teacher is in the upper half part of the screen during teaching, the main writing and operating area of the student is in the middle and lower half screens because of height, and the whole screen area is not always written when a plurality of people write, so the method is more suitable for the touch scanning method provided by the invention, and the whole screen area is divided into the upper, middle and lower touch areas of the screen, or left and right touch areas of the screen.
As shown in fig. 5, taking IWB as an example, the flow of the touch scanning method in an exemplary embodiment of the invention is as follows:
when the IWB is turned off, if the screen is turned off, the touch scanning is not performed, and if the screen is turned on, the full screen touch scanning is performed at 60 Hz;
when the power supply of the IWB is turned on or the screen is awakened (gesture awakening or touch awakening and the like), immediately performing full-screen touch scanning at 120Hz scanning frequency, performing simple processing on Raw data received by all RSICs, and sending the Raw data to a terminal control unit TCMU;
the terminal control unit TCMU judges the area where the touch point (finger or active pen, etc.) is located according to the received scanning data, and determines the contact area and the non-contact area;
the terminal control unit TCMU controls the touch area to perform touch scanning at 120Hz, and sends Raw data received by the RSIC to the terminal control unit TCMU, and after the terminal control unit TCMU performs data processing, the terminal control unit TCMU reports a point to a HOST (HOST) to perform touch operation;
the terminal control unit TCMU controls the non-contact area to perform touch scanning at 60Hz, simply processes the Raw data received by the RSIC in the internal MCU, if no touch signal exists, sends a group of Raw data and a data instruction (0) without touch to the terminal control unit TCMU, if touch signal exists, sends the Raw data received by the RSIC to the terminal control unit TCMU, and after the terminal control unit TCMU performs data processing, reports to the HOST (HOST) to execute touch operation.
In another embodiment of the present invention, a touch scanning device is provided and applied to a display touch panel, where the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected to a micro-processing unit MCU, and each touch area is connected to a terminal control unit TMCU; the device comprises:
the first scanning module is used for scanning all the touch areas at a first scanning frequency when the touch signals are acquired, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to the scanning original data;
the second scanning module is used for scanning the contact area at the first scanning frequency and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
and the third scanning module is used for scanning the non-contact area at a second scanning frequency and transmitting the scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency.
The embodiment of the present invention further provides a computer readable storage medium 60, as shown in fig. 8, where the computer readable storage medium 60 stores a computer program 61, and when the computer program 61 is executed by a processor, the display touch scanning method is implemented as described above.
For example, in one example, the computer-readable storage medium 60 may be provided in a computing device that may also include a processor that may invoke the computer program 61 stored in the computer-readable storage medium 60.
As shown in fig. 9, the embodiment of the present invention further provides a display touch scanning chip 30, which includes a processor 70, a memory 70, and a computer program 61 stored in the memory and running on the processor, where the processor 70 implements the display touch scanning method as described above when executing the computer program 61.
The display touch scan chip 30 provided in the embodiments of the present disclosure may be disposed on a display touch panel, for controlling display scanning and touch scanning of the display touch panel.
As shown in fig. 10, the embodiment of the present invention further provides a display device 1, which includes a display touch panel 10 and the display touch scanning chip 30 described above. The display touch panel 10 includes a display array and a touch array, and the display touch scan chip 30 is electrically connected to the display touch panel 10 to drive the display array and the touch array, respectively.
Illustratively, the display device includes an interactive electronic whiteboard. In addition, the display device 1 provided in the embodiments of the present disclosure may be any product or component having a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator.
In embodiments of the present disclosure, the processor may be any circuit implementation having information processing capabilities, such as a general purpose integrated circuit chip or an application specific integrated circuit chip, for example, the integrated circuit chip may be disposed on a motherboard, for example, on the motherboard may also be provided with a storage medium, a power circuit, and the like; furthermore, the processor may be implemented as a circuit or in software, hardware (circuitry), firmware, or any combination thereof, e.g., using a Field Programmable Gate Array (FPGA). In embodiments of the present disclosure, a processor may include various computing structures, such as a Complex Instruction Set Computer (CISC) structure, a Reduced Instruction Set Computer (RISC) structure, or a structure that implements a combination of instruction sets. In some embodiments, the processor may also be a central processor, a microprocessor, such as an X86 processor, an ARM processor, or may be an image processor (GPU), or may be a digital processor (DSP), or the like. In an embodiment of the present disclosure, a storage medium may be disposed on the above-mentioned motherboard, and the storage medium may store instructions and/or data executed by the processor, store data generated by executing the instructions, and the like, and the generated data may be structured data or unstructured data, and the like. For example, the storage medium may include one or more computer program products, which may include various forms of computer-readable memory, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random access memory (R AM) and/or cache memory (cache), etc. The nonvolatile memory may include, for example, read Only Memory (ROM), magnetic disk, optical disk, semiconductor memory (e.g., flash memory, resistive memory, etc.), and the like. One or more computer program instructions may be stored on the computer readable memory that can be executed by a processor to perform the desired functions in embodiments of the present disclosure (implemented by the processor).
The following points need to be described:
(1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.
(2) In the drawings for describing embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced for clarity, i.e., the drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
(3) The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and the protection scope of the disclosure should be subject to the claims.
Claims (9)
1. The touch scanning method is characterized by being applied to a display touch panel, wherein the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a micro-processing unit (MCU), and each touch area is connected with a terminal control unit (TMCU); the method comprises the following steps:
when a touch signal is acquired, scanning all touch areas at a first scanning frequency, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to scanning original data;
scanning the contact area at the first scanning frequency, and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
scanning the non-contact area with a second scanning frequency, and transmitting scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency;
the method further comprises the steps of:
when the full screen has no touch signal, scanning all the touch areas with the second scanning frequency;
in the method, the non-contact area is scanned at a second scanning frequency, and scanned original data is sent to a micro processing unit MCU corresponding to the non-contact area, specifically including:
the MCU judges whether touch signals exist in the scanning original data of the non-contact area or not;
when no touch signal exists in the scanning original data of the non-contact area, reporting preset scanning data to a micro processing unit MCU, wherein the preset scanning data comprises the following steps: a group of scanning original data of the non-contact area and a non-touch data instruction.
2. The touch scanning method of claim 1, wherein,
in the method, the contactless region is scanned at a second scanning frequency, and scanning data is sent to a micro processing unit MCU corresponding to the contactless region, and the method further includes:
when the scanning original data of the non-contact area comprises a touch signal, reporting the scanning original data of the non-contact area to the terminal control unit TMCU;
and the terminal control unit TMCU controls the contactless region to be scanned at the first scanning frequency, processes the received scanning original data, and performs corresponding touch operation from the report point to the host.
3. The touch scanning method of claim 1, wherein,
in the method, when the touch signal is obtained, scanning all the touch areas with a first scanning frequency, and determining, by the terminal control unit TMCU, that a touch area where a touch point is located is a contact area and an area of the touch panel other than the contact area is a non-contact area according to scanning original data sent by each current touch area, where the touch area is located, further including:
when a touch signal is acquired, while the terminal control unit TMCU determines that a touch area where a touch point is located is a contact area and an area except the contact area in the touch panel is a non-contact area according to the scanning original data sent by each current touch area, the terminal control unit TMCU processes the scanning original data sent by each current touch area and reports the point to a host to execute corresponding touch operation.
4. The touch scanning method of claim 1, wherein,
the first scanning frequency is 120HZ; the second scanning frequency is 60HZ.
5. The touch scanning device is characterized by being applied to a display touch panel, wherein the display touch panel is divided into a plurality of touch areas, each touch area is correspondingly connected with a micro-processing unit (MCU), and each touch area is connected with a terminal control unit (TMCU); the device comprises:
the first scanning module is used for scanning all the touch areas at a first scanning frequency when the touch signals are acquired, and determining that the touch areas where the touch points are positioned are contact areas and the touch areas of the touch panel except the contact areas are non-contact areas according to the scanning original data;
the second scanning module is used for scanning the contact area at the first scanning frequency and sending scanning original data to the terminal control unit TMCU so as to execute touch operation according to the scanning original data;
the third scanning module is used for scanning the non-contact area at a second scanning frequency and transmitting scanning original data to a micro processing unit MCU corresponding to the non-contact area, wherein the first scanning frequency is larger than the second scanning frequency, and the micro processing unit MCU judges whether touch signals exist in the scanning original data of the non-contact area; when no touch signal exists in the scanning original data of the non-contact area, reporting preset scanning data to a micro processing unit MCU, wherein the preset scanning data comprises the following steps: a group of scanning original data of the non-contact area and a non-touch data instruction;
the device is also used for scanning all the touch areas at the second scanning frequency when the full screen has no touch signal.
6. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when executed by a processor, the computer program implements the display touch scanning method according to any one of claims 1-4.
7. A display touch scanning chip, comprising a processor, a memory, and a computer program stored in the memory and running on the processor, wherein the processor implements the display touch scanning method according to any one of claims 1-4 when executing the computer program.
8. A display device comprising a display touch panel and the display touch scan chip of claim 7.
9. The display device of claim 8, wherein the display device comprises an interactive electronic whiteboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010240922.5A CN111240529B (en) | 2020-03-31 | 2020-03-31 | Touch scanning method and device, chip, storage medium and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010240922.5A CN111240529B (en) | 2020-03-31 | 2020-03-31 | Touch scanning method and device, chip, storage medium and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111240529A CN111240529A (en) | 2020-06-05 |
| CN111240529B true CN111240529B (en) | 2024-04-09 |
Family
ID=70880717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010240922.5A Active CN111240529B (en) | 2020-03-31 | 2020-03-31 | Touch scanning method and device, chip, storage medium and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111240529B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880676B (en) * | 2020-06-22 | 2022-03-15 | 深圳市鸿合创新信息技术有限责任公司 | Partition touch control method and device, electronic equipment and storage medium |
| WO2022077243A1 (en) * | 2020-10-14 | 2022-04-21 | 深圳市康冠商用科技有限公司 | Touch signal processing method and system, and touch integrated machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087561A (en) * | 2010-02-09 | 2011-06-08 | 矽创电子股份有限公司 | Scan method applicable to touch control panel and capable of increasing scan speed |
| CN103376956A (en) * | 2012-04-18 | 2013-10-30 | 禾瑞亚科技股份有限公司 | Position detection method and device |
| CN104778009A (en) * | 2015-04-15 | 2015-07-15 | 京东方科技集团股份有限公司 | Driving method, driving device and display device |
| CN109189260A (en) * | 2018-07-26 | 2019-01-11 | 维沃移动通信有限公司 | A kind of touch control detecting method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9342181B2 (en) * | 2012-01-09 | 2016-05-17 | Nvidia Corporation | Touch-screen input/output device touch sensing techniques |
-
2020
- 2020-03-31 CN CN202010240922.5A patent/CN111240529B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087561A (en) * | 2010-02-09 | 2011-06-08 | 矽创电子股份有限公司 | Scan method applicable to touch control panel and capable of increasing scan speed |
| CN103376956A (en) * | 2012-04-18 | 2013-10-30 | 禾瑞亚科技股份有限公司 | Position detection method and device |
| CN104778009A (en) * | 2015-04-15 | 2015-07-15 | 京东方科技集团股份有限公司 | Driving method, driving device and display device |
| CN109189260A (en) * | 2018-07-26 | 2019-01-11 | 维沃移动通信有限公司 | A kind of touch control detecting method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111240529A (en) | 2020-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8174505B2 (en) | Touch screen display device and driving method of the same | |
| US8581874B2 (en) | Touch screen device and methods thereof configured for a plurality of resolutions | |
| US7936340B2 (en) | Display device and sensing signal processing apparatus | |
| WO2019000531A1 (en) | Touch control display panel and touch control display device | |
| CN102999227A (en) | Optical touch display panel and touch sensing method thereof | |
| CN111240529B (en) | Touch scanning method and device, chip, storage medium and display device | |
| KR101337259B1 (en) | Display device and driving method thereof | |
| US10013103B2 (en) | Display device and method of driving the same | |
| CN205334422U (en) | Touch display apparatus and electronic equipment | |
| CN205334408U (en) | Touch display apparatus and electronic equipment | |
| CN205334407U (en) | Touch display apparatus and electronic equipment | |
| EP3361364A1 (en) | Electronic paper touch screen and control method and display device thereof | |
| CN205334435U (en) | Touch display apparatus and electronic equipment | |
| CN203405787U (en) | Liquid crystal display device with touch control circuit | |
| CN205375419U (en) | Touch display apparatus and electronic equipment | |
| CN205334406U (en) | Touch display apparatus and electronic equipment | |
| CN205334412U (en) | Touch display apparatus and electronic equipment | |
| CN205334410U (en) | Touch display apparatus and electronic equipment | |
| CN205334415U (en) | Touch display apparatus and electronic equipment | |
| CN205334417U (en) | Touch display apparatus and electronic equipment | |
| US10664081B2 (en) | Optical touch system | |
| WO2018058664A1 (en) | Electronic device | |
| CN205334416U (en) | Touch display apparatus and electronic equipment | |
| CN205334423U (en) | Touch display apparatus and electronic equipment | |
| CN205375421U (en) | Touch display apparatus and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |