CN104267866A - Asymmetric touch screen calibrating method and system - Google Patents
Asymmetric touch screen calibrating method and system Download PDFInfo
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- CN104267866A CN104267866A CN201410466722.6A CN201410466722A CN104267866A CN 104267866 A CN104267866 A CN 104267866A CN 201410466722 A CN201410466722 A CN 201410466722A CN 104267866 A CN104267866 A CN 104267866A
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- calibration
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- calibration point
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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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
Abstract
The invention provides an asymmetric touch screen calibrating method. The method comprises the following steps of designing liquid crystal screen calibrating points and guaranteeing asymmetric distribution of the liquid crystal screen calibrating points; collecting the coordinates of the touch screen calibrating points; calculating calibrating data; determining whether calibration is successful; storing calibrating parameters. The invention also provides an asymmetric touch screen calibrating system. The system comprises a design module, a collecting module, a calculating module, a determining module and a storing module. The asymmetric touch screen calibrating method and system can reduce the calibration determining error rate, improve the production first pass yield and further greatly improve the production efficiency.
Description
Technical field
The present invention relates to technical field of touch control, particularly relate to a kind of asymmetric touch screen calibration steps and system.
Background technology
The touch screen of current touch screens all needs through calibration before the use, obtain from touch screen coordinate to the calibration data of liquid crystal coordinate, tslib calibration algorithm is generally adopt to show on screen to be used as the contact of calibrating about four points of screen center's symmetry and screen center point, and in production, employing frock is touched to produce calibration data to these five points.But five dot sequencies calibrated may be caused time production line is produced not meet expection because of misoperation, such calibration simultaneously also have passed the inspection of calibration algorithm, creates the calibration data of mistake, causes production first-pass yield low.Reason is that in tslib algorithm, calculative calibration data is exactly touch screen coordinate to the translation of liquid crystal coordinate, convergent-divergent and rotation three factors in essence, as long as therefore the point of incorrect order can produce the effect of rotation namely by calibration, as shown in Figure 1, symmetrical correct calibration sequence is 12345, analyze with incorrect order calibration sequence 43215, the symmetrical touch-screen that is equivalent to have rotated 180 degree, thus by calibration algorithm, this improper correction data reduce production efficiency.Preliminary solution will limit calibration sequence by the relation of the xy coordinate of touch screen, but the installation direction that prerequisite is touch screen must be unified, the technique that such way can make touch screen install too strictly is not easy to produce, and therefore expecting to have a kind of impact while of production can solve the method that incorrect order misses calibration.
Summary of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of asymmetric touch screen calibration steps, reduces calibration rate by mistake, enhances productivity.
One of the technical problem to be solved in the present invention is achieved in that a kind of asymmetric touch screen calibration steps, and described method comprises the steps:
Step 1, design liquid crystal display calibration point, ensure that liquid crystal display calibration point is asymmetric distribution;
Step 2, according to the calibration point that liquid crystal display shows successively, the upper relevant position of point touching screen, obtains touch screen calibration point, the coordinate of collection touch calibration point successively;
Step 3, according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1;
Step 4, judge the scope whether deviate that calculates exceedes error and allow, if exceed or solution not out; prompting is calibrated unsuccessfully, returns step 2; Otherwise calibrate successfully, enter step 5;
Step 5, preservation calibration parameter.
Further, the number of described calibration point gets 5, and 5 calibration points are the skews carrying out different directions on original symmetrical basis, and side-play amount is greater than error allowed band, to form the calibration point of asymmetric distribution.
Further, the mode of frock is adopted to click shown calibration point in described step 2.
Further, described step 3 is specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm must be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1, described deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate.
The technical problem to be solved in the present invention two, is to provide a kind of asymmetric touch screen calibration system, reduces calibration rate by mistake, enhances productivity.
Two of the technical problem to be solved in the present invention is achieved in that a kind of asymmetric touch screen calibration system, and described system comprises:
Design module: for designing liquid crystal display calibration point, ensures that liquid crystal display calibration point is asymmetric distribution;
Acquisition module: for according to the calibration point that liquid crystal display shows successively, the upper relevant position of point touching screen, obtains touch screen calibration point, the coordinate of collection touch calibration point successively;
Computing module: for according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module;
Judge module: for judging the scope whether deviate calculated exceedes error and allow, if exceed or solution not out; prompting is calibrated unsuccessfully, otherwise calibrates successfully;
Preserve module: for preserving calibration parameter.
Further, the number of described calibration point gets 5, and 5 calibration points are the skews carrying out different directions on original symmetrical basis, and side-play amount is greater than error allowed band, to form the calibration point of asymmetric distribution.
Further, the mode of frock is adopted to click shown calibration point in described acquisition module.
Further, described computing module is specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm must be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module, described deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate.
Tool of the present invention has the following advantages: present invention employs asymmetrical mode to the calibration point that distributes, thus avoid wrong sequence to be passed through, this asymmetrical touch screen calibration steps reduces calibration misjudgment rate in production, improve first-pass yield, and do not need to change existing production technology, without importing new operation, substantially increase production efficiency.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is symmetrical expression calibration point distribution plan.
Fig. 2 is the inventive method flowchart.
Fig. 3 is asymmetric calibration point distribution plan.
Embodiment
Please refer to Fig. 2 and Fig. 3, a kind of asymmetric touch screen calibration steps, described method comprises the steps:
Step 1, design liquid crystal display calibration point, ensure that liquid crystal display calibration point is asymmetric distribution, in theory calibration point number get more multiple-effect fruit better, but too much calibration point adds computing time, produce redundancy larger, the number of calibration point get 5 comparatively reasonable, as shown in Figure 3, 5 calibration points are the skews carrying out different directions on the basis of original Fig. 1 symmetrical expression calibration point distribution plan, if error allowed band is 5 coordinate unit, this error allowed band is determined by the designed encircled centered by calibration point, the radius getting circle is 6 coordinate unit, the space that the girth removing this circle takies, this error allowed band is 5 coordinate unit, as long as clicked position is dropped in this region all can think that the calibration point in this region is clicked, side-play amount is greater than error allowed band, only be greater than 5 coordinate unit, first calibration point offsets 10 coordinate unit to the right, second calibration point upwards offsets 10 coordinate unit, 3rd calibration point offsets 10 coordinate unit left, 4th calibration point offsets downward 10 coordinate unit, 5th calibration point invariant position, to form the calibration point of asymmetric distribution, this asymmetric distribution can not obtain because of asymmetric characteristic and the correct coordinate data sequentially having rotate effect under the calibration sequence of incorrect order, thus the coordinate data obtained deviation when inspection is bound to be greater than 5 coordinate unit, thus ensure that and can not cause by mistake calibration because of incorrect order.
Step 2, according to the calibration point that liquid crystal display shows successively, adopt the mode of the frock upper relevant position of point touching screen successively, obtain touch screen calibration point, the coordinate of collection touch calibration point;
Step 3, according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1, be specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm can be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1, this deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate;
Step 4, judge that whether the calibration parameter that calculates is more than 5 coordinate unit, if exceed or solution not out; prompting is calibrated unsuccessfully, returns step 2; Otherwise calibrate successfully, enter step 5;
Step 5, preservation calibration parameter.
A kind of asymmetric touch screen calibration system, described system comprises:
Design module: for designing liquid crystal display calibration point, ensure that liquid crystal display calibration point is asymmetric distribution, what calibration point number was got in theory is more, the degree of accuracy of calibration is higher, but too much calibration point adds computing time, produce redundancy larger, and it is very few to the raising effect of the degree of accuracy of calibration, the number of calibration point get 5 comparatively reasonable, as shown in Figure 3, 5 calibration points are the skews carrying out different directions on the basis of original Fig. 1 symmetrical expression calibration point distribution plan, if error allowed band is 5 coordinate unit, this error allowed band is determined by the designed encircled centered by calibration point, the radius getting circle is 6 coordinate unit, the space that the girth removing this circle takies, this error allowed band is 5 coordinate unit, as long as clicked position is dropped in this region all can think that the calibration point in this region is clicked, side-play amount is greater than error allowed band, only be greater than 5 coordinate unit, first calibration point offsets 10 coordinate unit to the right, second calibration point upwards offsets 10 coordinate unit, 3rd calibration point offsets 10 coordinate unit left, 4th calibration point offsets downward 10 coordinate unit, 5th calibration point invariant position, to form the calibration point of asymmetric distribution, this asymmetric distribution can not obtain because of asymmetric characteristic and the correct data sequentially having rotate effect under the calibration sequence of incorrect order, thus the data obtained deviation when inspection is bound to be greater than 5 coordinate unit, thus ensure that and can not cause by mistake calibration because of incorrect order,
Acquisition module: for according to the calibration point that liquid crystal display shows successively, adopt the mode of the frock upper relevant position of point touching screen successively, obtain touch screen calibration point, the coordinate of collection touch calibration point;
Computing module: for according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module, be specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm can be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module, this deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate;
Judge module: for judging that whether the deviate calculated is more than 5 coordinate unit, if exceed or solution not out; prompting is calibrated unsuccessfully, otherwise calibrates successfully;
Preserve module: for preserving calibration parameter.
In addition, tslib algorithm is the calibration that touch screens is carried out in conversion by realizing the point on liquid crystal display and the point on touch-screen, and concrete mode is as follows:
If the calibration point coordinate of liquid crystal screen display is P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, two-dimensional geometry conversion comprises three kinds of translations, Rotation and Zoom.The matrix representation of this three is:
Translation matrix M
t:
Scaled matrix M
s:
Rotation matrix M
r:
Therefore by formula P
l=M
rm
tm
sp
tlaunch, its result is:
In the equation above, the coordinate (X on liquid crystal display
l, Y
l) and touch-screen on coordinate (X
t, Y
t) be known, other be then that we need to ask: θ, S
y, S
x, T
y, T
xhave 5 variablees, at least need five equations, because often organize point coordinate (P
l, P
t) two equations can be obtained, and need to gather at least three group point coordinate.Be reduced to the formula (1) being more suitable for computer calculate further:
X
l=X
ta-Y
tb+C formula (1)
Y
L＝X
TD+Y
TE+F
When selection 5 groups of point coordinate calculate, account form need be transformed into:
X
L＝X
TA+Y
TB+C
X
L·X
T＝(X
T)
2A+Y
TX
TB+X
TC
X
ly
t=Y
tx
ta+ (Y
t)
2b+Y
tc formula (2)
Y
L＝X
TD+Y
TE+F
Y
L·X
T＝(X
T)
2D+Y
TX
TE+X
TF
Y
L·Y
T＝Y
TX
TD+(Y
T)
2E+Y
TF
In formula (2), each parameter is solved by the method for inverse matrix, that is:
wherein M is M
t, M
sor M
r.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (8)
1. an asymmetric touch screen calibration steps, is characterized in that: described method comprises the steps:
Step 1, design liquid crystal display calibration point, ensure that liquid crystal display calibration point is asymmetric distribution;
Step 2, according to the calibration point that liquid crystal display shows successively, the upper relevant position of point touching screen, obtains touch screen calibration point, the coordinate of collection touch calibration point successively;
Step 3, according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1;
Step 4, judge the scope whether deviate that calculates exceedes error and allow, if exceed or solution not out; prompting is calibrated unsuccessfully, returns step 2; Otherwise calibrate successfully, enter step 5;
Step 5, preservation calibration parameter.
2. a kind of asymmetric touch screen calibration steps according to claim 1, it is characterized in that: the number of described calibration point gets 5,5 calibration points are the skews carrying out different directions on original symmetrical basis, and side-play amount is greater than error allowed band, to form the calibration point of asymmetric distribution.
3. a kind of asymmetric touch screen calibration steps according to claim 1, is characterized in that: adopt the mode of frock to click shown calibration point in described step 2.
4. a kind of asymmetric touch screen calibration steps according to claim 1, is characterized in that: described step 3 is specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm must be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with step 1, described deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate.
5. an asymmetric touch screen calibration system, is characterized in that: described system comprises:
Design module: for designing liquid crystal display calibration point, ensures that liquid crystal display calibration point is asymmetric distribution;
Acquisition module: for according to the calibration point that liquid crystal display shows successively, the upper relevant position of point touching screen, obtains touch screen calibration point, the coordinate of collection touch calibration point successively;
Computing module: for according to the coordinate of liquid crystal display calibration point and the coordinate of calibration point that gathers, calculate calibration parameter, recycle known calibration parameter and calculate the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module;
Judge module: for judging the scope whether deviate calculated exceedes error and allow, if exceed or solution not out; prompting is calibrated unsuccessfully, otherwise calibrates successfully;
Preserve module: for preserving calibration parameter.
6. a kind of asymmetric touch screen calibration system according to claim 5, it is characterized in that: the number of described calibration point gets 5,5 calibration points are the skews carrying out different directions on original symmetrical basis, and side-play amount is greater than error allowed band, to form the calibration point of asymmetric distribution.
7. a kind of asymmetric touch screen calibration system according to claim 5, is characterized in that: adopt the mode of frock to click shown calibration point in described acquisition module.
8. a kind of asymmetric touch screen calibration system according to claim 5, is characterized in that: described computing module is specially: set the calibration point coordinate of liquid crystal screen display as P
l, the coordinate of the calibration point that touch-screen is clicked is P
t, translation matrix is M
t, scaled matrix is M
s, rotation matrix is M
r, according to tslib algorithm must be from touch screen point coordinate to the mapping equation of liquid crystal dots coordinate: P
l=M
rm
tm
sp
tagain according to the coordinate of liquid crystal display calibration point and the coordinate of the touch screen calibration point gathered, Simultaneous Equations obtains calibration parameter, recycle known calibration parameter calculating touch screen calibration point and be mapped in the coordinate that liquid crystal display is put, and calculating the deviate that touch screen calibration point is mapped in coordinate that liquid crystal display the is put liquid crystal display calibration point coordinate corresponding with design module, described deviate gets the difference of ordinate and the maximum value in difference of horizontal ordinate.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106201082A (en) * | 2016-07-08 | 2016-12-07 | 青岛海信电器股份有限公司 | The method to set up of touch area and equipment |
| CN107479765A (en) * | 2017-09-30 | 2017-12-15 | 歌尔科技有限公司 | Coordinate calibration method and equipment based on Trackpad |
| CN113587792A (en) * | 2021-07-26 | 2021-11-02 | 陕西绿能电子科技有限公司 | Charging controller LCD screen calibration triggering method, system, equipment and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403950A (en) * | 2008-11-14 | 2009-04-08 | 四川长虹电器股份有限公司 | Touch screen correction method |
| US20120182257A1 (en) * | 2011-01-14 | 2012-07-19 | Kazuyuki Yamamoto | Positional information correction device, touch sensor, positional information correction method, and program |
| CN102866808A (en) * | 2012-09-28 | 2013-01-09 | 上海电机学院 | Method and system for self-correcting of specially-shaped touch screen |
| CN103713795A (en) * | 2013-12-20 | 2014-04-09 | 深圳市英威腾电气股份有限公司 | Automatic error correction method for resistive touch screen |
-
2014
- 2014-09-15 CN CN201410466722.6A patent/CN104267866B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403950A (en) * | 2008-11-14 | 2009-04-08 | 四川长虹电器股份有限公司 | Touch screen correction method |
| US20120182257A1 (en) * | 2011-01-14 | 2012-07-19 | Kazuyuki Yamamoto | Positional information correction device, touch sensor, positional information correction method, and program |
| CN102866808A (en) * | 2012-09-28 | 2013-01-09 | 上海电机学院 | Method and system for self-correcting of specially-shaped touch screen |
| CN103713795A (en) * | 2013-12-20 | 2014-04-09 | 深圳市英威腾电气股份有限公司 | Automatic error correction method for resistive touch screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106201082A (en) * | 2016-07-08 | 2016-12-07 | 青岛海信电器股份有限公司 | The method to set up of touch area and equipment |
| CN106201082B (en) * | 2016-07-08 | 2019-08-13 | 青岛海信电器股份有限公司 | The setting method and equipment of touch area |
| CN107479765A (en) * | 2017-09-30 | 2017-12-15 | 歌尔科技有限公司 | Coordinate calibration method and equipment based on Trackpad |
| CN113587792A (en) * | 2021-07-26 | 2021-11-02 | 陕西绿能电子科技有限公司 | Charging controller LCD screen calibration triggering method, system, equipment and medium |
| CN113587792B (en) * | 2021-07-26 | 2024-01-19 | 绿能慧充数字技术有限公司 | Charging controller LCD screen calibration triggering method, system, equipment and medium |
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