CN109521903A - Touch display device and touch and display scanning method thereof - Google Patents
Touch display device and touch and display scanning method thereof Download PDFInfo
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- CN109521903A CN109521903A CN201810330477.4A CN201810330477A CN109521903A CN 109521903 A CN109521903 A CN 109521903A CN 201810330477 A CN201810330477 A CN 201810330477A CN 109521903 A CN109521903 A CN 109521903A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 64
- 230000009471 action Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 101001116668 Homo sapiens Prefoldin subunit 3 Proteins 0.000 description 7
- 102100024884 Prefoldin subunit 3 Human genes 0.000 description 7
- 101100369068 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TDA1 gene Proteins 0.000 description 6
- 101150021955 GIP1 gene Proteins 0.000 description 3
- 101150042183 GIP3 gene Proteins 0.000 description 3
- 101100218338 Gibberella zeae (strain ATCC MYA-4620 / CBS 123657 / FGSC 9075 / NRRL 31084 / PH-1) aurO gene Proteins 0.000 description 3
- 101100480850 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TDA3 gene Proteins 0.000 description 3
- 101150086208 TDA2 gene Proteins 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 101100519283 Arabidopsis thaliana PDX13 gene Proteins 0.000 description 2
- 101150099040 GIP2 gene Proteins 0.000 description 2
- 101100218339 Gibberella zeae (strain ATCC MYA-4620 / CBS 123657 / FGSC 9075 / NRRL 31084 / PH-1) aurR1 gene Proteins 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Classifications
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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
-
- 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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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a touch display device and a touch and display scanning method thereof. The touch control and display scanning method comprises the following steps: distinguishing a picture frame time period into a first sub-time period and a second sub-time period; performing a display scanning action on a plurality of first scanning lines in the plurality of display scanning lines in a first sub-time period, and performing a touch detection action on the touch display device; and performing a display scanning action on a plurality of second scanning lines in the display scanning lines in a second sub-time period, and performing a touch detection action on the touch display device.
Description
Technical field
The present invention relates to a kind of touch control display apparatus and its touch-controls and display scan method more particularly to one kind can promote touching
The touch control display apparatus and its touch-control and display scan method of the scan frequency of control detection.
Background technique
With the progress of electronics technology, touch interface is provided on a display panel, it has also become electronic device is common now
Man-machine interface.
In integrated touch control display apparatus, the movement of touch control detection and display scanning needs the time in setting
It is carried out respectively in section.It is common to have long vertical mode (long V mode) and long horizontal mould in existing technical field
Formula (long H mode).
Under long vertical mode, touch control detection concentrates on non-display time interval (the value blank of hanging down for not executing display scanning
Time interval) in carry out.In such a mode, the interference that can avoid occurring on display picture horizontal line (H-line) is existing
As, but it is limited to the display scanning required time, the scan frequency of the touch control detection under long vertical mode is lower, it is more difficult to meet visitor
The demand at family end.
In addition, touch control detection and display scanning motion can come staggeredly mutually according to scanned region under long horizontal pattern
It carries out.Such mode can effectively promote the frequency of touch control detection, but readily occur on display picture and horizontal line (H- occur
Line interference phenomenon).Also, such mode needs that buffer is arranged, to keep in the display data of display picture.
Summary of the invention
The present invention provides a kind of touch control display apparatus and its touch-control and display scan method, can effectively promote touch control detection
Scan frequency.
Touch-control of the invention and display scan method include: that distinguish the picture frame time cycle be the first sub- time cycle and the
Two sub- time cycles；Display is executed to a plurality of first part's scan line in a plurality of display scan line in the first sub- time cycle to sweep
Movement is retouched, also, touch control detection movement is executed to touch control display apparatus；And in the second sub- time cycle to display scan line
In a plurality of second part scan line execute display scanning motion, also, to touch control display apparatus execute touch control detection movement.
Touch control display apparatus of the invention includes touch-control display panel, display scanner driver, touch control detection device and control
Device processed.Show a plurality of display scan line of scanner driver coupling touch-control display panel.Touch control detection device couples touch-control display surface
Plate.Controller, coupling display scanner driver and touch control detection device, to: the differentiation picture frame time cycle was the first sub- time
Period and the second sub- time cycle；In the first sub- time cycle, make to show scanner driver to a plurality of in display scan line
First part's scan line executes display scanning motion, and touch control detection device is made to execute touch control detection movement；And in the second son
Time cycle makes to show that scanner driver executes display scanning motion to a plurality of second part scan line in display scan line,
And touch control detection device is made to execute touch control detection movement.
Based on above-mentioned, of the invention touch control display apparatus and its touch-control and display scan method, scan line is shown by making
Different sections of the scanning motion in the picture frame time cycle carry out respectively, and time interval after the completion of each scanning motion
Carry out touch control detection movement.In this way, which touch control display apparatus is not required to that extra buffer is arranged to keep in display data, and can
The execution frequency for promoting touch control detection movement simultaneously, promotes the task performance of touch control display apparatus.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to cooperate attached drawing to make
Carefully it is described as follows.
Detailed description of the invention
Fig. 1 shows the touch-control of one embodiment of the invention and shows the action flow chart of scan method；
Fig. 2 shows the touch-control of the embodiment of the present invention and shows the waveform diagram of scan method；
The schematic diagram of the display scanning motion for the embodiment of the present invention that Fig. 3 is shown；
Fig. 4 shows the touch-control of another embodiment of the present invention and shows the waveform diagram of scan method；
Fig. 5 shows the schematic diagram of the touch control display apparatus of one embodiment of the invention.
Drawing reference numeral explanation:
S110~S130: touch-control and display scan method the step of
FRP: picture frame time cycle
VSYNC: vertical synchronizing signal
P1, P2: pulse wave
SP1~SP3: sub- time cycle
VBP1~VBP3: vertical blanking time section
DP1~DP3: display time interval
GIPO, GIPE, GIP1~GIP3: part of scanning line
DD_TSHD, DD_TSVD: control signal
TDA1~TDA3: touch control detection movement
G1, G3, G2, G4: scan line
310,320: picture
330: display picture
500: touch control display apparatus
510: touch-control display panel
520: display scanner driver
530: touch control detection device
540: controller
Specific embodiment
Fig. 1 is please referred to, Fig. 1 shows the touch-control of one embodiment of the invention and shows the action flow chart of scan method.Fig. 1's
Method flow is suitable for touch control display apparatus.Wherein, in step s 110, distinguishing a picture frame time cycle was the first sub- week time
Phase and the second sub- time cycle, also, in the step s 120, in the first sub- time cycle to more in a plurality of display scan line
First part's scan line executes display scanning motion, also, executes touch control detection movement to touch control display apparatus.Then, exist
In step S130, in the second sub- time cycle to a plurality of second part outside first part's scan line in a plurality of display scan line
Scan line executes display scanning motion, also, executes touch control detection movement to touch control display apparatus.
Illustrate in details, it in the step s 120, can by executing display scanning motion to a plurality of first part's scan line
To execute the display movement of first part display area on a display panel.In addition, in step s 130, then by a plurality of
Two part of scanning line execute display scanning motion, and execute the display movement of the second part display area on a display panel, and
In the present embodiment, first part display area and the second part display area are two display areas not overlapped mutually, and the
A part of display area and the second part display area are combined to the whole display areas that can be equal to entire display panel.
It further illustrates, first part's scan line and second part scan line are different scan line.Specifically
Bright, in an of the invention implementation column, first part's scan line can retouch line for odd-numbered in display scan line, and second
Branch scanning line then can be even-numbered to retouch line in display scan line.For example, if having 1024 with whole display scan lines
Scan line is example, and first part's scan line can be the 1st, 3 .., 1023 articles of scan lines, and second part scan line then can be with
For the 2nd, 4 .., 1024 articles of scan lines.
Certainly, first part's scan line can also be configured with second part scan line by other embodiments, example
Such as, above-mentioned example is adopted as heir, first part's scan line can be the 1st to the 512nd article of scan line, and second part scan line can be the
513 to the 1024th articles of scan lines.Wherein, the quantity of first part's scan line and second part scan line can be identical.
Focus on, includes showing time interval and hanging down in step S120 and S130, in the first sub- time cycle
Straight blank time section also includes display time interval and vertical blanking time section in the second sub- time cycle.First
Display time interval of the display scanning motion generation of branch scanning line in the first sub- time cycle, and second part scan line
It shows scanning motion, then the display time interval in the second sub- time cycle occurs.Also, in the first sub- time cycle and
In vertical blanking time section in second sub- time cycle, then touch control detection movement can be carried out.That is, in the present embodiment
In, in single a picture frame time cycle, there can be the touch control detection that vertical blanking time section executes twice twice to act, have
Effect promotes the execution frequency of touch control detection movement.
In addition, the touch control detection movement due to the present embodiment is carried out in vertical blanking time section, will not make to show
Picture generates horizontal interference phenomenon, also, does not also need that display number of the additional buffer to keep in display picture is arranged
According to.That is, the advantages of long vertical mode and long horizontal pattern for having both the prior art of the embodiment of the present invention, more effectively
Promotion touch control display apparatus efficiency.
Referring to figure 2., Fig. 2 shows the touch-control of the embodiment of the present invention and shows the waveform diagram of scan method.The present embodiment
Picture frame time cycle FRP can be set according to vertical synchronizing signal VSYNC.Wherein, in Fig. 2, the picture frame time cycle, FRP could
It is arranged according to two adjacent pulse waves on vertical synchronizing signal VSYNC.Detecting the pulse wave on vertical synchronizing signal VSYNC
At the time point of rising edge (or falling edge) the latter set time of P1, it may be set to the initial point of picture frame time cycle FRP, and
The time point for detecting rising edge (or falling edge) the latter set time of the pulse wave P2 on vertical synchronizing signal VSYNC, then may be used
It is set as the terminating point of picture frame time cycle FRP.
In addition, picture frame time cycle FRP can be split as the first sub- sub- time cycle SP2 of time cycle SP1 and second.
It include display time interval DP1 and vertical blanking time section VBP1, the second sub- time cycle in first sub- time cycle SP1
It then include display time interval DP2 and vertical blanking time section VBP2 in SP2.Corresponding first sub- time cycle SP1 and
Second sub- time cycle SP2, display scan line can then be divided into first part scan line GIPO and second part scan line
GIPE.Wherein, the first sub- sub- time cycle SP2 of time cycle SP1 and second can be carried out by control signal DD_TSVD
Definition, and show time interval DP1, vertical blanking time section VBP1, display time interval DP2 and vertical blanking time area
Between VBP2 can be defined according to control signal DD_TSHD.Wherein, control signal DD_TSVD and DD_TSHD can pass through touching
The sequence controller (timing controller) in display device is controlled, to generate according to vertical synchronizing signal VSYNC.
In movement details, in the display time interval DP1 of the first sub- time cycle SP1, it can be performed and be directed to first
The display scanning motion of branch scanning line GIPO.Also, hanging down after the completion of the display scanning motion of first part scan line GIPO
In straight blank time section VBP1, then the touch control detection of first time can be executed for complete touch-control display panel and acts TDA1.
Then, it in the display time interval DP2 of the second sub- time cycle SP2, then can be performed for second part scan line GIPE's
Show scanning motion.Also, the vertical blanking time section after the completion of display scanning motion of second part scan line GIPE
It, then can the touch control detection movement TDA2 of complete touch-control display panel execution again in VBP2.
By above-mentioned explanation it is known that in embodiments of the present invention, can be executed in single a picture frame time cycle FRP
Touch control detection twice acts TDA1 and TDA2, effectively promotes the frequency of touch control detection.
In addition, in embodiments of the present invention, since display scanning motion is concentrated in display time interval DP1, DP2
It carries out, therefore does not need that additional buffer is arranged to keep in display data.Also, based on touch control detection movement TDA1,
TDA2 is occurred in vertical blanking time section VBP1, the VBP2 for being not carried out picture display movement, therefore, can avoid occurring
The phenomenon that showing the horizontal line interference on picture.
The part of setting about first part's scan line and second part scan line is referred to the sheet that Fig. 3 is shown
The schematic diagram of the display scanning motion of inventive embodiments.In embodiments of the present invention, first part's scan line and second part
Scan line can respectively correspond two parts of display picture to be set.In Fig. 3, first part's scan line is set as showing
Odd-numbered scan line G1, G3 ... of scan line, second part scan line are set as showing the even-numbered scan line of scan line
G2,G4….In this way, carrying out display scanning motion performed by first part's scan line can produce in the first sub- time interval
Picture 310.Display scanning motion performed by the second part scan line conducted in the second sub- time interval then can produce picture
Face 320.By integrating picture 310 and picture 320, complete display picture 330 can be then shown in the entire picture frame time cycle.
Subsidiary one mentions, and in the embodiment of the present invention, display scanning motion can be directed to first part's scan line, second part
Scan line is scanned according to particular order, first part's scan line, second part scan line can also be directed to, not according to specific
Sequence is scanned, and there is no specific limitations.
Referring to figure 4., Fig. 4 shows the touch-control of another embodiment of the present invention and shows the waveform diagram of scan method.In this reality
It applies in example, picture frame time cycle FRP is divided into three sub- time cycles, the respectively first sub- time interval SP1, second period of the day from 11 p.m. to 1 a.m
Between the section SP2 and sub- time cycle SP3 of third.First sub- time interval SP1 includes display time interval DP1 and vertical blank
White time interval VBP1, the second sub- time interval SP2 include display time interval DP2 and vertical blanking time section VBP2,
The sub- time interval SP3 of third then includes display time interval DP3 and vertical blanking time section VBP3.
Corresponding three sub- time interval SP1~SP3, display scan line are divided into first part scan line GIP1, second
Part of scanning line GIP2 and Part III scan line GIP3.Wherein, first part's scan line GIP1, second part scan line
GIP2 and Part III scan line GIP3 is respectively in display time interval DP1, display time interval DP2 and display time zone
Between DP3 be actuated to execute display scanning motion.It is noted that then dividing in the VBP1~VBP3 of vertical blanking time section
It Zhi Hang not touch control detection movement TDA1~TDA3.
By above-mentioned explanation it is not difficult to find that by distinguish picture frame time cycle FRP be more sub- time cycle SP1~
SP3, the number that touch control detection movement TDA1~TDA3 is performed can be elevated, and promote the execution frequency of touch control detection.
Certainly, in the embodiment of the present invention, it is merely one that differentiation single a picture frame time cycle, which is three sub- time cycles,
Illustrative example, under conditions of hardware device allows, the embodiment of the present invention can be to appoint by distinguishing single a picture frame time cycle
It anticipates multiple sub- time cycles, and uses the execution frequency for promoting touch control detection.
Referring to figure 5., Fig. 5 shows the schematic diagram of the touch control display apparatus of one embodiment of the invention.Touch control display apparatus 500
Including touch-control display panel 510, display scanner driver 520, touch control detection device 530 and controller 540.Show turntable driving
The a plurality of display scan line of the coupling touch-control display panel 510 of device 520.Touch control detection device 530 couples touch-control display panel 510.Control
Device 540 processed then couples display scanner driver 520 and touch control detection device 530.Controller 540 can pass through touch control display apparatus
In sequence controller carry out construction, and to execute the multiple steps shown such as Fig. 1, use the execution for promoting touch control detection movement
Frequency.
In terms of hardware structure, touch-control display panel 510 can be arbitrary integrated (in cell or on cell)
Liquid crystal or LED display panel.Show that scanner driver 520 can be using any well known to those skilled in the art
Gate drivers and source electrode driver carry out construction.And touch control detection device 530 can equally apply any those skilled in the art
Known touch control detection circuit carrys out construction, the limitation that do not fix.
In addition, controller 540 can be the processor of tool operational capability.Alternatively, controller 540 can be and be retouched by hardware
Predicate says (Hardware Description Language, HDL) or any other number well-known to those skilled in the art
The design method of word circuit is designed, and passes through field-programmable logic gate array (Field Programmable Gate
Array, FPGA), complicated Programmadle logic device (Complex Programmable Logic Device, CPLD) or special
The mode of different application integrated circuit (Application-specific Integrated Circuit, ASIC) is hard come what is realized
Part circuit.
About the movement details of touch control display apparatus 500, in the foregoing embodiments have in detail explanation, herein without
It repeats more.
In conclusion the present invention is multiple sub- time cycles by distinguishing the picture frame time cycle, and by multiple period of the day from 11 p.m. to 1 a.m
Between the period vertical blanking time section in execute touch control detection movement, effectively do not influence show picture under conditions of, mention
The frequency for rising touch control detection movement, promotes the task performance of touch control display apparatus.
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field
Middle technical staff, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore protection of the invention
Subject to range ought be defined depending on claim.
Claims (14)
1. a kind of touch-control and display scan method, are suitable for touch control display apparatus characterized by comprising
Distinguishing the picture frame time cycle is the first sub- time cycle and the second sub- time cycle；
It is dynamic that display scanning is executed to a plurality of first part's scan line in a plurality of display scan line in the described first sub- time cycle
Make, also, touch control detection movement is executed to the touch control display apparatus；And
Display is executed to a plurality of second part scan line in the multiple display scan line in the described second sub- time cycle to sweep
Movement is retouched, also, the touch control detection is executed to the touch control display apparatus and is acted.
2. touch-control according to claim 1 and display scan method, which is characterized in that in the described first sub- time cycle pair
The multiple first part's scan line in the multiple display scan line executes display scanning motion, also, to the touch-control
Display device execute the touch control detection movement the step of include:
In the display time interval in the described first sub- time cycle, to the multiple the in the multiple display scan line
A part of scan line executes display scanning motion；And
The touch control detection movement is executed in the vertical blanking time section in the described first sub- time cycle.
3. touch-control according to claim 1 and display scan method, which is characterized in that in the described second sub- time cycle pair
The multiple second part scan line in the multiple display scan line executes display scanning motion, also, to the touch-control
Display device execute the touch control detection movement the step of include:
In a display time interval in the described second sub- time cycle, to the multiple in the multiple display scan line
Second part scan line executes display scanning motion；And
The touch control detection movement is executed in the vertical blanking time section in the described second sub- time cycle.
4. touch-control according to claim 1 and display scan method, which is characterized in that the multiple first part's scan line
It is identical as the quantity of the multiple second part scan line.
5. touch-control according to claim 1 and display scan method, which is characterized in that the multiple first part's scan line
A plurality of odd-numbered scan lines in respectively the multiple display scan line, the multiple second part scan line are respectively the multiple
Show a plurality of even-line interlace line in scan line.
6. touch-control according to claim 1 and display scan method, which is characterized in that further include:
According to continuous two vertical synchronizing signal to determine the picture frame time cycle.
7. touch-control according to claim 1 and display scan method, which is characterized in that further include:
Distinguishing the picture frame time cycle is the described first sub- time cycle, the second sub- time cycle and third sub- time
Period；And
Display is executed to a plurality of Part III scan line in the multiple display scan line in the third sub- time cycle to sweep
Movement is retouched, also, the touch control detection is executed to the touch control display apparatus and is acted.
8. a kind of touch control display apparatus characterized by comprising
Touch-control display panel；
It shows scanner driver, couples a plurality of display scan line of the touch-control display panel；
Touch control detection device couples the touch-control display panel；And
Controller couples the display scanner driver and the touch control detection device, to:
Distinguishing the picture frame time cycle is the first sub- time cycle and the second sub- time cycle；
In the described first sub- time cycle, make the display scanner driver to a plurality of first in the multiple display scan line
Part of scanning line executes display scanning motion, also, the touch control detection device is made to execute touch control detection movement；And
In the described second sub- time cycle, make the display scanner driver to a plurality of second in the multiple display scan line
Part of scanning line executes display scanning motion, also, the touch control detection device is made to execute the touch control detection movement.
9. touch control display apparatus according to claim 8, which is characterized in that the controller is in the described first sub- week time
In interim display time interval, make the display scanner driver to the multiple first in the multiple display scan line
Part of scanning line executes display scanning motion, the controller and the vertical blanking time in the described first sub- time cycle
The touch control detection device is set to execute the touch control detection movement in section.
10. touch control display apparatus according to claim 8, which is characterized in that the controller is in the described second sub- time
In display time interval in period, make the display scanner driver to the multiple the in the multiple display scan line
Two part of scanning line execute display scanning motion, the controller and the vertical blank in the described second sub- time cycle
The touch control detection device is set to execute the touch control detection movement in time interval.
11. touch control display apparatus according to claim 8, wherein the multiple first part's scan line and the multiple the
The quantity of two part of scanning line is identical.
12. touch control display apparatus according to claim 8, wherein the multiple first part's scan line is respectively described more
A plurality of odd-numbered scan lines in a display scan line, the multiple second part scan line are respectively in the multiple display scan line
A plurality of even-line interlace line.
13. touch control display apparatus according to claim 8, wherein the controller is according to continuous two vertical synchronizing signal
To determine the picture frame time cycle.
14. touch control display apparatus according to claim 8, wherein the controller also to:
Distinguishing the picture frame time cycle is the described first sub- time cycle, the second sub- time cycle and third sub- time
Period；
Make the display scanner driver to a plurality of third in the multiple display scan line in the third sub- time cycle
Part of scanning line executes display scanning motion, and the touch control detection device is made to execute the touch control detection movement.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762560661P | 2017-09-19 | 2017-09-19 | |
| US62/560,661 | 2017-09-19 | ||
| TW107104828A TW201915691A (en) | 2017-09-19 | 2018-02-09 | Touch display apparatus and touch and display scanning method thereof |
| TW107104828 | 2018-02-09 |
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| Publication Number | Publication Date |
|---|---|
| CN109521903A true CN109521903A (en) | 2019-03-26 |
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ID=65769739
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810330477.4A Pending CN109521903A (en) | 2017-09-19 | 2018-04-13 | Touch display device and touch and display scanning method thereof |
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| Country | Link |
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| CN (1) | CN109521903A (en) |
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| CN111930268A (en) * | 2020-09-18 | 2020-11-13 | 深圳市汇顶科技股份有限公司 | Touch control chip, code printing method and electronic equipment |
| WO2022056860A1 (en) * | 2020-09-18 | 2022-03-24 | 深圳市汇顶科技股份有限公司 | Touch chip, coding method and electronic device |
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