CN104267866B - Asymmetric touch screen calibrating method and system - Google Patents
Asymmetric touch screen calibrating method and system Download PDFInfo
- Publication number
- CN104267866B CN104267866B CN201410466722.6A CN201410466722A CN104267866B CN 104267866 B CN104267866 B CN 104267866B CN 201410466722 A CN201410466722 A CN 201410466722A CN 104267866 B CN104267866 B CN 104267866B
- Authority
- CN
- China
- Prior art keywords
- calibration
- liquid crystal
- calibration point
- coordinate
- touch screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—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, more particularly to a kind of asymmetric touch screen calibration steps and system.
Background technology
At present the touch screen of touch screens is required for before the use through calibration, is obtained from touch screen coordinate to the school of liquid crystal coordinate
Quasi- data, tslib calibration algorithms are typically utilized on screen showing with regard to four symmetrical points of screen center and screen center
Point is used as the contact calibrated, and adopts frock to be touched to produce calibration data to this five points in production.But production line
When upper production probably due to misoperation and cause calibrate five dot sequencies do not meet expection, while such calibration
Pass through the inspection of calibration algorithm, generated the calibration data of mistake, cause production first-pass yield low.Reason is in tslib algorithms
Calculative calibration data is substantially exactly translation, scaling and rotation three factors of the touch screen coordinate to liquid crystal coordinate, therefore
As long as the effect that the point of incorrect order can produce rotation can be by calibration, as shown in figure 1, symmetrical correct calibration sequence is
12345, analyzed with incorrect order calibration sequence 43215, it is symmetrical to have rotated 180 degree equivalent to touch screen, so as to pass through calibration
Algorithm, this improper correction data reduce production efficiency.Preliminary solution is the relation of the xy coordinates that pass through touch screen
To limit calibration sequence, but on condition that the installation direction of touch screen must be unified, such way can cause the work that touch screen is installed
Skill is excessively strict and be not easy to production, it is therefore desirable for can have a kind of not affect to produce while the method that incorrect order is calibrated can be solved by mistake.
The content 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 calibrating by mistake
Rate, improve production efficiency.
What one of the technical problem to be solved in the present invention was realized in：A kind of asymmetric touch screen calibration steps, the side
Method comprises the steps：
Step 1, design liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point is asymmetric distribution；
Step 2, according to the calibration point shown successively on liquid crystal display screen, successively relevant position on point touching screen, is touched
Screen calibration point, the coordinate of collection touch calibration point；
The coordinate of step 3, the coordinate according to liquid crystal display screen calibration point and the calibration point for being gathered, calculates calibration parameter, then profit
The coordinate liquid crystal display screen school corresponding with step 1 that touch screen calibration point is mapped in point on liquid crystal display screen is calculated with known calibration parameter
The deviation of coordinate on schedule；
Whether step 4, the deviation that calculates of judgement exceed the scope that error is allowed, if more than or solution not out if point out
Calibration failure, return to step 2；Otherwise calibrate successfully, into step 5；
Step 5, preservation calibration parameter.
Further, the number of the calibration point takes 5,5 calibration points be it is original it is symmetrical on the basis of carry out
The skew of different directions, and side-play amount is more than error allowed band, to form the calibration point of asymmetric distribution.
Further, shown calibration point is clicked in the step 2 by the way of frock.
Further, the step 3 is specially：If the calibration point coordinates of liquid crystal screen display is PL, click on touch screen
Calibration point coordinate be PT, translation matrix is MT, scaled matrix is MS, spin matrix is MR, according to tslib algorithms from touch
Shield point coordinates is to the mapping equation of liquid crystal point coordinates：PL=MR·MT·MS·PT, further according to liquid crystal display screen calibration point coordinate and
The coordinate of the touch screen calibration point for being gathered, Simultaneous Equations obtain calibration parameter, recycle known calibration parameter to calculate and touch
Touch screen calibration point be mapped on liquid crystal display screen put coordinate, and calculate touch screen calibration point be mapped on liquid crystal display screen put coordinate with
Corresponding liquid crystal display screen calibrates the deviation of point coordinates in step 1, and the deviation takes the difference of vertical coordinate and the difference of abscissa
Middle maximum.
The two of the technical problem to be solved in the present invention, are to provide a kind of asymmetric touch screen calibration system, reduce calibrating by mistake
Rate, improve production efficiency.
What the two of the technical problem to be solved in the present invention were realized in：A kind of asymmetric touch screen calibration system, the system
System includes：
Design module：For designing liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point is asymmetric distribution；
Acquisition module：For according to the calibration point shown successively on liquid crystal display screen, successively relevant position on point touching screen, to obtain
Obtain touch screen calibration point, the coordinate of collection touch calibration point；
Computing module：For according to the coordinate of the coordinate of liquid crystal display screen calibration point and the calibration point for being gathered, calculating calibration ginseng
Number, recycles known calibration parameter calculating touch screen calibration point to be mapped in the coordinate put on liquid crystal display screen corresponding with design module
Liquid crystal display screen calibrate point coordinates deviation；
Judge module：For judging whether the deviation that calculates exceedes the scope that error is allowed, if exceeding or solution does not go out
Then to point out calibration failure, otherwise calibrate successfully；
Preserving module：For preserving calibration parameter.
Further, the number of the calibration point takes 5,5 calibration points be it is original it is symmetrical on the basis of carry out
The skew of different directions, and side-play amount is more than error allowed band, to form the calibration point of asymmetric distribution.
Further, shown calibration point is clicked in the acquisition module by the way of frock.
Further, the computing module is specially：If the calibration point coordinates of liquid crystal screen display is PL, point on touch screen
The coordinate of the calibration point for hitting is PT, translation matrix is MT, scaled matrix is MS, spin matrix is MR, according to tslib algorithms from
Touch screen point coordinates to the mapping equation of liquid crystal point coordinates is：PL=MR·MT·MS·PT, further according to the coordinate of liquid crystal display screen calibration point
With the coordinate of the touch screen calibration point for being gathered, Simultaneous Equations acquisition calibration parameter, known calibration parameter is recycled to calculate
Touch screen calibration point is mapped in the coordinate put on liquid crystal display screen, and calculates the coordinate that touch screen calibration point is mapped in point on liquid crystal display screen
With the deviation that corresponding liquid crystal display screen in design module calibrates point coordinates, the deviation takes the difference of vertical coordinate and abscissa
Maximum value in difference.
The invention has the advantages that：Present invention employs asymmetrical mode and carry out profile calibration point, so as to avoid mistake
Order is passed through, and this asymmetrical touch screen calibration steps does not reduce calibrating misjudgment rate in production, raising first-pass yield, and not
Need to change existing production technology, without new operation is imported, substantially increase production efficiency.
Description of the drawings
With reference to the accompanying drawings in conjunction with the embodiments the present invention is further illustrated.
Fig. 1 is symmetrical expression calibration point scattergram.
Fig. 2 is the inventive method execution flow chart.
Fig. 3 is asymmetric calibration point scattergram.
Specific embodiment
Fig. 2 and Fig. 3 is refer to, a kind of asymmetric touch screen calibration steps, methods described comprises the steps：
Step 1, design liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point is asymmetric distribution, in theory calibration point number
The better but excessive calibration point of more effects for taking increased the calculating time, produce that redundancy is larger, and the number of calibration point takes 5
It is relatively reasonable, as shown in figure 3,5 calibration points are to carry out different directions on the basis of original Fig. 1 symmetrical expressions calibration point scattergram
Skew, if error allowed band be 5 coordinate units, the error allowed band be by designed centered on calibration point
What encircled was determined, the radius for taking circle is 6 coordinate units, removes the space that the girth of the circle takes, and the error permits
Perhaps scope be 5 coordinate units, the calibration point quilt being regarded as in the region in the region as long as clicked position falls
Click on, side-play amount is more than error allowed band, as long as being more than 5 coordinate units, first calibration point offsets to the right 10
Coordinate unit, second calibration point offsets up 10 coordinate units, and the 3rd calibration point offsets to the left 10 coordinate units, the
Four calibration points offset downward 10 coordinate units, and the 5th calibration point position is constant, to form the calibration point of asymmetric distribution,
This asymmetric distribution is under the calibration sequence of incorrect order because asymmetric characteristic will not obtain having rotates effe with correct order
Coordinate data, coordinate data deviation when inspection is bound to more than 5 coordinate units obtained from, so as to ensure that
Calibration by mistake will not be caused because of incorrect order.
Step 2, according to the calibration point shown successively on liquid crystal display screen, it is corresponding on point touching screen successively by the way of the frock
Position, obtains touch screen calibration point, the coordinate of collection touch calibration point；
The coordinate of step 3, the coordinate according to liquid crystal display screen calibration point and the calibration point for being gathered, calculates calibration parameter, then profit
The coordinate liquid crystal display screen school corresponding with step 1 that touch screen calibration point is mapped in point on liquid crystal display screen is calculated with known calibration parameter
The deviation of coordinate on schedule, specially：If the calibration point coordinates of liquid crystal screen display is PL, the calibration point clicked on touch screen
Coordinate is PT, translation matrix is MT, scaled matrix is MS, spin matrix is MR, can be obtained from touch screen point coordinates according to tslib algorithms
Mapping equation to liquid crystal point coordinates is：PL=MR·MT·MS·PT, coordinate further according to liquid crystal display screen calibration point and gathered
The coordinate of touch screen calibration point, Simultaneous Equations obtain calibration parameter, recycle known calibration parameter to calculate touch screen calibration
Put and be mapped in the coordinate put on liquid crystal display screen, and calculate touch screen calibration point and be mapped in the coordinate and step 1 put on liquid crystal display screen
Corresponding liquid crystal display screen calibrates the deviation of point coordinates, and the deviation takes the difference of vertical coordinate and the maximum value in difference of abscissa；
Step 4, the calibration parameter that calculates of judgement whether more than 5 coordinate units, if more than or solution not out if point out
Calibration failure, return to step 2；Otherwise calibrate successfully, into step 5；
Step 5, preservation calibration parameter.
A kind of asymmetric touch screen calibration system, the system includes：
Design module：For designing liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point is asymmetric distribution, is calibrated in theory
It is more that point number takes, and the degree of accuracy of calibration is higher, but excessive calibration point increased the calculating time, and generation redundancy is larger,
And the raising effect of the degree of accuracy to calibrating is very few, the number of calibration point take 5 it is relatively reasonable, as shown in figure 3,5 calibration points
It is the skew that different directions are carried out on the basis of original Fig. 1 symmetrical expressions calibration point scattergram, if error allowed band is 5 seats
Mark unit, the error allowed band is determined by the designed encircled centered on calibration point, takes the radius of circle
For 6 coordinate units, the space that the girth of the circle takes is removed, the error allowed band is 5 coordinate units, as long as by point
The position hit falls, and the calibration point being regarded as in the region in the region is clicked, and side-play amount is more than error allowed band,
As long as being more than 5 coordinate units, first calibration point offsets to the right 10 coordinate units, and second calibration point offsets up
10 coordinate units, the 3rd calibration point offsets to the left 10 coordinate units, and the 4th calibration point offsets downward 10 coordinate lists
Position, the 5th calibration point position is constant, and to form the calibration point of asymmetric distribution, this asymmetric distribution is suitable in the calibration of incorrect order
Because asymmetric characteristic will not obtain the data for having rotates effe with correct order under sequence, data are in inspection obtained from
When deviation be bound to more than 5 coordinate units, will not cause calibration by mistake because of incorrect order so as to ensure that；
Acquisition module：For according to the calibration point shown successively on liquid crystal display screen, the point touching successively by the way of frock
Relevant position on screen, obtains touch screen calibration point, the coordinate of collection touch calibration point；
Computing module：For according to the coordinate of the coordinate of liquid crystal display screen calibration point and the calibration point for being gathered, calculating calibration ginseng
Number, recycles known calibration parameter calculating touch screen calibration point to be mapped in the coordinate put on liquid crystal display screen corresponding with design module
Liquid crystal display screen calibrate point coordinates deviation, specially：If the calibration point coordinates of liquid crystal screen display is PL, click on touch screen
Calibration point coordinate be PT, translation matrix is MT, scaled matrix is MS, spin matrix is MR, according to tslib algorithms can from
Touch screen point coordinates to the mapping equation of liquid crystal point coordinates is：PL=MR·MT·MS·PT, further according to the coordinate of liquid crystal display screen calibration point
With the coordinate of the touch screen calibration point for being gathered, Simultaneous Equations acquisition calibration parameter, known calibration parameter is recycled to calculate
Touch screen calibration point is mapped in the coordinate put on liquid crystal display screen, and calculates the coordinate that touch screen calibration point is mapped in point on liquid crystal display screen
The deviation of liquid crystal display screen calibration point coordinates corresponding with design module, the deviation takes the difference of vertical coordinate and the difference of abscissa
Maximum in value；
Judge module：For judging the deviation that calculates whether more than 5 coordinate units, if more than or solution not out if
Prompting calibration failure, otherwise calibrates successfully；
Preserving module：For preserving calibration parameter.
In addition, tslib algorithms are to carry out touch screens by realizing the conversion of the point on point and touch screen on liquid crystal display screen
Calibration, concrete mode is as follows：
If the calibration point coordinates of liquid crystal screen display is PL, the coordinate of the calibration point clicked on touch screen is PT, two-dimensional geometry
Conversion is comprising three kinds of translations, rotation and scales.The matrix of this three is expressed as：
Translation matrix MT：
Scaled matrix MS：
Spin matrix MR：
Therefore by formula PL=MR·MT·MS·PTLaunch, its result is：
In the equation above, the coordinate (X on liquid crystal display screenL、YL) and touch screen on coordinate (XT、YT) it is known, and
It is other then be we need ask：θ, SY, SX, TY, TX5 variables are had, five equations are at least needed, because per group of point is sat
Mark (PL, PT) two equations can be obtained, and need at least three groups point coordinates of collection.It is further simplified as being more suitable for computer meter
The formula (1) of calculation：
XL=XTa-YTB+C formula (1)
YL=XTD+YTE+F
When selecting 5 groups of point coordinates to be calculated, calculation need to be transformed into：
XL=XTA+YTB+C
XL·XT=(XT)2A+YTXTB+XTC
XL·YT=YTXTA+(YT)2B+YTC formula (2)
YL=XTD+YTE+F
YL·XT=(XT)2D+YTXTE+XTF
YL·YT=YTXTD+(YT)2E+YTF
Each parameter is solved by the method for inverse matrix in formula (2), i.e.,：
Wherein M is MT、MSOr MR。
Although the foregoing describing the specific embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us is merely exemplary, rather than for the restriction to the scope of the present invention, is familiar with this
The technical staff in field should be covered the present invention's in the equivalent modification and change made according to the spirit of the present invention
In scope of the claimed protection.
Claims (6)
1. a kind of asymmetric touch screen calibration steps, it is characterised in that：Methods described comprises the steps：
Step 1, design liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point is asymmetric distribution, and the number of the calibration point takes 5
It is individual, 5 calibration points be it is original it is symmetrical on the basis of carry out the skew of different directions, and side-play amount allows model more than error
Enclose, to form the calibration point of asymmetric distribution；
Step 2, according to the calibration point shown successively on liquid crystal display screen, successively relevant position on point touching screen, obtains touch screen school
On schedule, the coordinate of collection touch calibration point；
The coordinate of step 3, the coordinate according to liquid crystal display screen calibration point and the calibration point for being gathered, calculates calibration parameter, recycles
The calibration parameter known calculates touch screen calibration point and is mapped in the coordinate liquid crystal display screen calibration point corresponding with step 1 put on liquid crystal display screen
The deviation of coordinate；
Whether step 4, the deviation that calculates of judgement exceed the scope that error is allowed, if more than or solution not out if prompting calibration
Failure, return to step 2；Otherwise calibrate successfully, into step 5；
Step 5, preservation calibration parameter.
2. a kind of asymmetric touch screen calibration steps according to claim 1, it is characterised in that：Work is adopted in the step 2
The mode of dress clicks on shown calibration point.
3. a kind of asymmetric touch screen calibration steps according to claim 1, it is characterised in that：The step 3 is specially：If
The calibration point coordinates of liquid crystal screen display is PL, the coordinate of the calibration point clicked on touch screen is PT, translation matrix is MT, scaling
Matrix is MS, spin matrix is MR, must be from touch screen point coordinates to the mapping equation of liquid crystal point coordinates according to tslib algorithms：PL=
MR·MT·MS·PT, the coordinate of coordinate and the touch screen calibration point for being gathered further according to liquid crystal display screen calibration point, Simultaneous Equations
Calibration parameter is obtained, is recycled known calibration parameter to calculate touch screen calibration point and is mapped in the coordinate put on liquid crystal display screen, and counted
Calculate touch screen calibration point and be mapped in the deviation that the coordinate put on liquid crystal display screen liquid crystal display screen corresponding with step 1 calibrates point coordinates
Value, the deviation takes the difference of vertical coordinate and the maximum value in difference of abscissa.
4. a kind of asymmetric touch screen calibration system, it is characterised in that：The system includes：
Design module：For designing liquid crystal display screen calibration point, it is ensured that liquid crystal display screen calibration point be asymmetric distribution, the calibration point
Number takes 5,5 calibration points be it is original it is symmetrical on the basis of carry out the skew of different directions, and side-play amount is more than error
Allowed band, to form the calibration point of asymmetric distribution；
Acquisition module：For according to the calibration point shown successively on liquid crystal display screen, successively relevant position on point touching screen, to be touched
Touch screen calibration point, the coordinate of collection touch calibration point；
Computing module：For according to the coordinate of the coordinate of liquid crystal display screen calibration point and the calibration point for being gathered, calculating calibration parameter, then
Touch screen calibration point is calculated using known calibration parameter be mapped in the coordinate put on liquid crystal display screen liquid crystal corresponding with module is designed
The deviation of screen calibration point coordinates；
Judge module：For judging whether the deviation that calculates exceedes the scope that error is allowed, if more than or solution not out if
Prompting calibration failure, otherwise calibrates successfully；
Preserving module：For preserving calibration parameter.
5. a kind of asymmetric touch screen calibration system according to claim 4, it is characterised in that：Adopt in the acquisition module
The mode of frock clicks on shown calibration point.
6. a kind of asymmetric touch screen calibration system according to claim 4, it is characterised in that：The computing module is concrete
For：If the calibration point coordinates of liquid crystal screen display is PL, the coordinate of the calibration point clicked on touch screen is PT, translation matrix is MT,
Scaled matrix is MS, spin matrix is MR, must be from touch screen point coordinates to the mapping equation of liquid crystal point coordinates according to tslib algorithms：
PL=MR·MT·MS·PT, the coordinate of coordinate and the touch screen calibration point for being gathered further according to liquid crystal display screen calibration point, simultaneous side
Journey group obtains calibration parameter, recycles known calibration parameter to calculate touch screen calibration point and is mapped in the coordinate put on liquid crystal display screen,
And calculate touch screen calibration point and be mapped in the coordinate and corresponding liquid crystal display screen calibration point coordinates in design module put on liquid crystal display screen
Deviation, the deviation takes the difference of vertical coordinate and the maximum value in difference of abscissa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466722.6A CN104267866B (en) | 2014-09-15 | 2014-09-15 | Asymmetric touch screen calibrating method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466722.6A CN104267866B (en) | 2014-09-15 | 2014-09-15 | Asymmetric touch screen calibrating method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104267866A CN104267866A (en) | 2015-01-07 |
| CN104267866B true CN104267866B (en) | 2017-04-12 |
Family
ID=52159393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466722.6A Active CN104267866B (en) | 2014-09-15 | 2014-09-15 | Asymmetric touch screen calibrating method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104267866B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107479765B (en) * | 2017-09-30 | 2020-07-03 | 歌尔科技有限公司 | Coordinate calibration method and device based on touch pad |
| 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 |
Citations (3)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5589859B2 (en) * | 2011-01-14 | 2014-09-17 | ソニー株式会社 | POSITION INFORMATION CORRECTION DEVICE, TOUCH SENSOR, POSITION INFORMATION CORRECTION METHOD, AND PROGRAM |
-
2014
- 2014-09-15 CN CN201410466722.6A patent/CN104267866B/en active Active
Patent Citations (3)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104267866A (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110490198A (en) | Text orientation bearing calibration, device, computer equipment and storage medium | |
| CN104267866B (en) | Asymmetric touch screen calibrating method and system | |
| CN104391603B (en) | A kind of calibration method of touch screen, calibrating installation and calibration system | |
| CN105352487A (en) | Calibration method for precision of attitude measurement system | |
| CN103679637B (en) | Display unit coordinate method to set up and device based on spliced display wall signal window | |
| CN101354621A (en) | Method and apparatus for determining touch screen calibration parameter | |
| CN105841640B (en) | flatness error evaluation method and device | |
| CN106201053B (en) | Detect the sensitivity correction method and computer readable recording medium of the touch input device of touch pressure | |
| CN102375721B (en) | A kind of matrix multiplication operation method, graphic process unit and electronic equipment | |
| CN105975132B (en) | A kind of detection method and device of touch screen accuracy | |
| CN102736816A (en) | Resistive touch screen calibration method and mobile terminal | |
| CN110378906A (en) | A kind of ellipse detection method based on flat-cut linear distance | |
| CN104166985B (en) | A kind of star sensor scaling method based on region segmentation | |
| TWI507959B (en) | Correcting apparatus and correcting method for self-capacitive touch panel | |
| CN107506077A (en) | A kind of resistive touch screen calibration method | |
| CN104978088B (en) | Coordinate means for correcting and the bearing calibration of self-capacitance type touch panel | |
| CN104391599B (en) | A kind of touch screen point filter method for balancing accuracy and sensitivity | |
| CN109445636A (en) | A kind of self-capacitance touch screen edge touch coordinate compensation method | |
| CN104899371B (en) | Survey of Transmission Line method and device | |
| CN105160087B (en) | A kind of construction method of correlation rule optimal curve model | |
| TWI460626B (en) | Touch control electronic device and calibration method of trajectory | |
| CN105628333B (en) | A kind of pneumatic error under the conditions of high-altitude High Mach number determines method | |
| CN104461197B (en) | A kind of Rapid Screen Multiresidue Method for Determination of large scale capacitance touching control film | |
| CN103135004B (en) | A kind of method, a kind of method and device thereof measuring electromagnetic property of test card structure | |
| CN103246395A (en) | Touch screen calibration method based on mini2440 development board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |