CN107943341B - The control method and device of touch-control and display integrated system - Google Patents
The control method and device of touch-control and display integrated system Download PDFInfo
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- CN107943341B CN107943341B CN201711107436.0A CN201711107436A CN107943341B CN 107943341 B CN107943341 B CN 107943341B CN 201711107436 A CN201711107436 A CN 201711107436A CN 107943341 B CN107943341 B CN 107943341B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses the control methods and device of a kind of touch-control and display integrated system.This method comprises: when touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；When touch-control scanning is to even frame, using the second capacitance as a reference value；Obtain the capacitance of each block of present frame；It is poor that the capacitance of each block of present frame and first capacitor value or the second capacitance are made, and obtains the difference of each block of present frame；Coordinate measurement is carried out according to difference.Through the invention, achieved the effect that eliminate touch-control and shown integrated system using oblique line noise caused by single a reference value.
Description
Technical field
The present invention relates to display fields, in particular to the control method and dress of a kind of touch-control and display integrated system
It sets.
Background technique
Touch-control and display driver integrate (Integrated touch and driver, referred to as ITD) system and usually adopt
With H mode (H mode), touch-control (touch) scanning twice will do it under the mode in 1 display frame (display frame), from
And realize 120Hz report point rate.
If grid (gate) is parked in some point block (RX) during first time touch is scanned, will not centainly stop next time
In the position RX, and each sweep time piece width (Touch Period signal interval, referred to as TPS
Interval before), the load (RC loading) of screen is different when Gate stops and is not parked in some RX, corresponds to the point in this way
Original value (Rawdata) also can be different, thus will appear oblique line noise, as shown in Figure 1.
It can not be eliminated for touch-control in the related technology and display integrated system using oblique line noise caused by single a reference value
Problem, currently no effective solution has been proposed.
Summary of the invention
The main purpose of the present invention is to provide the control methods and device of a kind of touch-control and display integrated system, to solve
The problem of touch-control and display integrated system can not be eliminated using oblique line noise caused by single a reference value in the related technology.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of touch-control and display integrated system
Control method, this method comprises: when touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；It is arrived in touch-control scanning
When even frame, using the second capacitance as a reference value；The capacitance for obtaining each block of present frame, by each point of present frame
It is poor that the capacitance of block and the first capacitor value or second capacitance are made, and obtains the difference of each block of present frame；Root
Coordinate measurement is carried out according to the difference.
Further, the capacitance for obtaining each block of present frame includes: to obtain after the completion of each touch-control frame scan
The capacitance of each block of present frame and the index of current touch-control frame.
Further, the index of touch-control frame includes 0 and 1.
To achieve the goals above, according to another aspect of the present invention, a kind of touch-control and display integrated system are additionally provided
Control device, which includes: acquiring unit, the capacitance of each block for obtaining present frame, wherein sweep in touch-control
When retouching odd-numbered frame, using first capacitor value as a reference value, when touch-control scanning is to even frame, using the second capacitance as benchmark
Value；Processing unit, for making the capacitance of each block of present frame and the first capacitor value or second capacitance
Difference obtains the difference of each block of present frame；Detection unit, for carrying out coordinate measurement according to the difference.
Further, the acquiring unit includes: the first acquisition module, for obtaining after the completion of each touch-control frame scan
Take the capacitance of each block of present frame and the index of the current touch-control frame.
Further, the index of touch-control frame includes 0 and 1.
To achieve the goals above, according to another aspect of the present invention, a kind of storage medium is additionally provided, including storage
Program, wherein equipment where controlling the storage medium in described program operation executes touch-control of the present invention and display
The control method of integrated system.
To achieve the goals above, according to another aspect of the present invention, a kind of processor is additionally provided, for running journey
Sequence, wherein described program executes touch-control of the present invention and shows the control method of integrated system when running.
The present invention is by when touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；In touch-control scanning to idol
When number frame, using the second capacitance as a reference value；The capacitance for obtaining each block of present frame, by each block of present frame
Capacitance and first capacitor value or the second capacitance make poor, obtain the difference of each block of present frame；It is carried out according to difference
Coordinate measurement.It solves the problems, such as to eliminate touch-control and shows integrated system using oblique line noise caused by single a reference value, Jin Erda
It has arrived and has eliminated touch-control and show integrated system using the effect of oblique line noise caused by single a reference value.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of oblique line noise according to prior art；
Fig. 2 is the flow chart of the control method of touch-control according to an embodiment of the present invention and display integrated system；
Fig. 3 is the schematic diagram after oblique line noise according to an embodiment of the present invention is eliminated；And
Fig. 4 is the schematic diagram of the control device of touch-control according to an embodiment of the present invention and display integrated system.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
The embodiment of the invention provides the control methods of a kind of touch-control and display integrated system.
Fig. 2 is the flow chart of the control method of touch-control according to an embodiment of the present invention and display integrated system, such as Fig. 2 institute
Show, method includes the following steps:
Step S102: obtaining the capacitance of each block of present frame, when touch-control scanning is to odd-numbered frame, with first capacitor
Value is used as a reference value；When touch-control scanning is to even frame, using the second capacitance as a reference value；
Step S104: it is poor that the capacitance of each block of present frame and first capacitor value or the second capacitance are made, and obtains
The difference of each block of present frame；
Step S106: coordinate measurement is carried out according to difference.
The embodiment is by when touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；It is arrived in touch-control scanning
When even frame, using the second capacitance as a reference value；After the capacitance for obtaining each block of present frame, by each of present frame
It is poor that the capacitance and first capacitor value of point block or the second capacitance are made, and obtains the difference of each block of present frame；According to difference
Coordinate measurement is carried out, is solved and is eliminated touch-control and show that integrated system is caused using list base using oblique line caused by single a reference value
The problem of noise, and then reached elimination touch-control and shown that integrated system is caused caused by using single a reference value tiltedly using list base
The effect of line noise.
For example, Base1, the second frame is taken to take Base2 (Base1 and Base2 with regard to this fix) in the first frame of touch.
By taking vertical screen as an example, in first frame, since the Gate of display is to be parked in upper half screen, in Base1, the electricity of upper half screen
It is higher (and higher position is fixed) that capacitance, which has part, and the capacitance of lower half screen is all normal.Similarly, in the second frame
When, since the Gate of display is to be parked in lower half screen, in Base2, it is higher that the capacitance of lower half screen, which has part,
(and higher position is fixed), and the capacitance of upper half screen is all normal.And in subsequent scanning, scanning odd-numbered frame (1,
3, when 5,7 ...), Gate be all be parked in half screen, and capacitance it is higher position it is identical as Base1, therefore, Base1 can be used
It makes the difference to obtain Diff (difference), wherein it can be according to difference progress coordinate measurement and coordinate measurement directly carried out according to difference,
It is also possible to carry out coordinate measurement by the absolute value of difference, or (such as approximation etc.) after difference progress simple process is carried out
Coordinate measurement, so that the part that odd-numbered frame capacitance is higher, offsets each other with Base1.Similarly, scanning even frame (2,4,6,
8 ...) when, Gate be all be parked in lower half screen, and capacitance it is higher position it is identical as Base2, therefore, can be made the difference using Base2
Diff is obtained, so that the higher part of even frame capacitance, offsets each other with Base2.Fig. 3 is according to an embodiment of the present invention oblique
Schematic diagram after the elimination of line noise, as shown in figure 3, technical solution in this way, either odd-numbered frame or even frame, acquired
Diff noise can all be eliminated, without apparent oblique line noise after elimination.
The touch-control and display integrated system of the embodiment of the present invention can be touch-control and display driver integrated system, in this hair
In bright embodiment, in touch-control and display integrated system, touch-control (touch) scanning and the scanning direction of display (display) are hung down
Directly, gate is parked in some RX during a touch is scanned, and the embodiment of the present invention increases base quantity, increases from single base
To double base, in this way, when touch-control scans odd-numbered frame, just using first capacitor value as a reference value, in touch-control scanning to even frame
When, just using the second capacitance as a reference value, it is ensured that be not in that oblique line is made an uproar without noise in each scan period
Sound can obtain the capacitance of each block of present frame, then by the capacitor of each block within each scan period in this way
It is poor that value is made with a reference value, to obtain the difference of each block of present frame, carries out coordinate measurement according to difference, and then determine touch-control position
It sets.It should be noted that in addition to different capacitances being respectively adopted as a reference value in odd-numbered frame and even frame, it can also be with four
Frame is a cycle, and four capacitances are respectively adopted as a reference value, also can achieve the effect for eliminating oblique line noise.
Optionally, the capacitance for obtaining each block of present frame includes: after the completion of each touch-control frame scan, and acquisition is worked as
The capacitance of each block of previous frame and the index of current touch-control frame.After the completion of each touch-control frame scan, it is available this
The index (index) of touch-control frame, the value of the index can be 0 and 1, and the index of touch-control frame includes 0 and 1, be subtracted according to index
Difference can be obtained in corresponding base (base1 or base2).
As a preferred embodiment, the embodiment of the present invention using double Base schemes, eliminates oblique line noise: touch-control with
After display driver integrates (Touch and display driver integration, referred to as TDDI) system initialization,
For 1 display frame (display frame) inner two touch frame (touch-control frame) take respectively Base (Base1 and
Base2), after the completion of each touch frame scanning, the index index (0 or 1) of this touch frame is obtained, according to
Index subtracts corresponding Base (Base1 or Base2) and obtains Diff.By using two base in each display frame
The algorithm for carrying out touch processing, can eliminate the oblique line noise in the mono- Base system of TDDI, by signal-to-noise ratio (Signal Noise
Ratio, abbreviation SNR) it is enhanced about more than once.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
The embodiment of the invention provides the control device of a kind of touch-control and display integrated system, which can be used for executing
The touch-control of the embodiment of the present invention and the control method of display integrated system.
Fig. 4 is the schematic diagram of the control device of touch-control according to an embodiment of the present invention and display integrated system, such as Fig. 3 institute
Show, which includes:
Acquiring unit 10, the capacitance of each block for obtaining present frame, wherein in touch-control scanning to odd-numbered frame
When, using first capacitor value as a reference value, when touch-control scanning is to even frame, using the second capacitance as a reference value；
Processing unit 20, for making the capacitance of each block of present frame and first capacitor value or the second capacitance
Difference obtains the difference of each block of present frame；
Detection unit 30, for carrying out coordinate measurement according to difference.
Optionally, acquiring unit 10 includes: the first acquisition module, for after the completion of each touch-control frame scan, acquisition to be worked as
The capacitance of each block of previous frame and the index of current touch-control frame.
Optionally, the index of touch-control frame includes 0 and 1.
The control device of the touch-control and display integrated system includes processor and memory, above-mentioned acquiring unit, processing
Unit, detection unit etc. store in memory as program unit, are executed by processor stored in memory above-mentioned
Program unit realizes corresponding function.
Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set one
Or more, oblique line noise caused by single a reference value is used by adjusting kernel parameter to eliminate touch-control and display integrated system.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, if read-only memory (ROM) or flash memory (flash RAM), memory include that at least one is deposited
Store up chip.
The embodiment of the invention provides a kind of storage mediums, are stored thereon with program, real when which is executed by processor
The existing touch-control and the control method for showing integrated system.
The embodiment of the invention provides a kind of processor, the processor is for running program, wherein described program operation
The control method of touch-control described in Shi Zhihang and display integrated system.
The embodiment of the invention provides a kind of equipment, equipment include processor, memory and storage on a memory and can
The program run on a processor, processor are performed the steps of when executing program when touch-control scanning is to odd-numbered frame, with first
Capacitance is as a reference value；When touch-control scanning is to even frame, using the second capacitance as a reference value；Obtain each of present frame
The capacitance of point block；It is poor that the capacitance of each block of present frame and first capacitor value or the second capacitance are made, and obtains current
The difference of each block of frame；Coordinate measurement is carried out according to difference.Equipment herein can be server, PC, PAD, mobile phone
Deng.
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just
The program of beginningization there are as below methods step: when touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；It is swept in touch-control
When retouching even frame, using the second capacitance as a reference value；Obtain the capacitance of each block of present frame；By each of present frame
It is poor that the capacitance and first capacitor value of a point block or the second capacitance are made, and obtains the difference of each block of present frame；According to difference
Value carries out coordinate measurement.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (6)
1. the control method of a kind of touch-control and display integrated system characterized by comprising
When touch-control scanning is to odd-numbered frame, using first capacitor value as a reference value；
When touch-control scanning is to even frame, using the second capacitance as a reference value；
Obtain the capacitance of each block of present frame；
It is poor that the capacitance of each block of present frame and the first capacitor value or second capacitance are made, and obtains present frame
Each block difference；
Coordinate measurement is carried out according to the difference,
The capacitance of each block for obtaining present frame includes:
After the completion of each touch-control frame scan, the capacitance of each block of present frame and the index of current touch-control frame are obtained.
2. the method according to claim 1, wherein the index of touch-control frame includes 0 and 1.
3. the control device of a kind of touch-control and display integrated system characterized by comprising
Acquiring unit, the capacitance of each block for obtaining present frame, wherein when touch-control scanning is to odd-numbered frame, with the
One capacitance is as a reference value, when touch-control scanning is to even frame, using the second capacitance as a reference value；
Processing unit, for making the capacitance of each block of present frame and the first capacitor value or second capacitance
Difference obtains the difference of each block of present frame；
Detection unit, for carrying out coordinate measurement according to the difference,
The acquiring unit includes:
First obtains module, for obtaining capacitance and the institute of each block of present frame after the completion of each touch-control frame scan
State the index of current touch-control frame.
4. device according to claim 3, which is characterized in that the index of touch-control frame includes 0 and 1.
5. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 2 described in touch-control and display integrated system
Control method.
6. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 2 described in touch-control and display integrated system control method.
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| CN201711107436.0A CN107943341B (en) | 2017-11-10 | 2017-11-10 | The control method and device of touch-control and display integrated system |
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| CN201711107436.0A CN107943341B (en) | 2017-11-10 | 2017-11-10 | The control method and device of touch-control and display integrated system |
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| CN109036230B (en) * | 2018-07-25 | 2022-04-29 | 武汉精测电子集团股份有限公司 | Touch detection data acquisition and display method and device |
| CN111338514B (en) * | 2020-02-09 | 2022-07-08 | 业成科技（成都）有限公司 | Capacitive indirect contact sensing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581845A (en) * | 2008-05-16 | 2009-11-18 | 精工爱普生株式会社 | Electro-optical device, electronic apparatus, and contact detection method |
| CN106598334A (en) * | 2016-12-15 | 2017-04-26 | 厦门天马微电子有限公司 | Touch display apparatus and driving method thereof |
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| KR20110087904A (en) * | 2010-01-27 | 2011-08-03 | 삼성전자주식회사 | Method of detecting a touch image and display device for performing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581845A (en) * | 2008-05-16 | 2009-11-18 | 精工爱普生株式会社 | Electro-optical device, electronic apparatus, and contact detection method |
| CN106598334A (en) * | 2016-12-15 | 2017-04-26 | 厦门天马微电子有限公司 | Touch display apparatus and driving method thereof |
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