CN104391603A - Method, device and system for calibrating touch screen - Google Patents
Method, device and system for calibrating touch screen Download PDFInfo
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- CN104391603A CN104391603A CN201410746380.3A CN201410746380A CN104391603A CN 104391603 A CN104391603 A CN 104391603A CN 201410746380 A CN201410746380 A CN 201410746380A CN 104391603 A CN104391603 A CN 104391603A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The invention discloses a method, a device and a system for calibrating a touch screen. The method comprises the following steps of controlling a first aligning mark on a calibrating component to be aligned with a second aligning mark displayed on a display panel until the position of an equivalent touch point generated when the calibrating component is in contact with a touch panel is the same with that of a calibrating point which corresponds to the second aligning mark; determining the coordinate position of the equivalent touch point in a coordinate system of the touch panel; determining a corresponding relation between the coordinate system of the touch panel and a coordinate system of the display panel according to the coordinate position of the calibrating point in the coordinate system of the display panel and the determined coordinate position of the equivalent touch point in the coordinate system of the touch panel; and calibrating and outputting the coordinate position of a touch portion in the coordination system of the touch panel according to the determined corresponding relation. By the method of aligning the first aligning mark and the second aligning mark, the position of the equivalent touch point can be the same with that of the calibrating point, so that the precision of calibration between the display panel and the touch panel is accurate.
Description
Technical field
The present invention relates to display technique field, espespecially a kind of calibration steps of touch screen, calibrating installation and calibration system.
Background technology
Along with the develop rapidly of display technique, touch screen (Touch Screen Panel) is gradually in the life of people.At present, touch screen comprises contact panel and display panel, can be divided into according to composition structure: external hanging type touch screen (Add on Mode Touch Panel) and embedded touch screen (In Cell TouchPanel).Wherein, external hanging type touch screen contact panel and display panel is separated to produce, and then fits to together; Embedded touch screen is that the touch control electrode of contact panel is embedded in display panel inside.
Because touch screen exists the error of machine error and amplification factor, figure corresponding point on contact panel and display panel have certain deviation, namely contact panel and display panel are in different plane coordinate systems, and the transverse axis of contact panel coordinate system and display panel coordinates system and the longitudinal axis can not realize overlapping completely, as shown in Fig. 1 a to Fig. 1 c, external hanging type touch screen is after being assembled into complete machine, relative displacement deviation at grade and rotating deviation may be deposited between display panel 01 and contact panel 02, and the convergent-divergent distortion deviation that display panel 01 and contact panel 02 do not cause in same level, and embedded touch screen is after being assembled into complete machine, carry out the relative displacement deviation also may deposited in the process of virtual borderlines at grade.Therefore, in order to solve the problem, external hanging type touch screen or embedded touch screen all will be calibrated it after being assembled into complete machine.Calibration is a kind of image reconstruction process, by picture through certain mapping mode, converses the some set consistent with display panel.Existing calibration steps is mainly by operator human contact a certain check point on a display panel, and the electric capacity on the touch points position that human contact's contact panel produces can change, the coordinate points of the touch points position that electric capacity on this check point and contact panel changes is analyzed, thus the calibration realized between display panel and contact panel, but this calibration steps is just analyzed mapping one by one simply, the relative translation deviation between display panel and contact panel coordinate at grade can only be calibrated, and the rotating deviation cannot calibrated at grade, and the convergent-divergent distortion deviation do not caused in same level, and cannot guarantee that the actual touch location of operator is identical with the position of check point, therefore also can cause cannot exactitude position.
Therefore, how making the calibration accuracy between display panel and contact panel more accurate, is the technical matters that those skilled in the art need solution badly.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of calibration steps of touch screen, calibrating installation and calibration system, can guarantee that equivalence is touched a little identical with check point position, thus make the calibration accuracy between display panel and contact panel more accurate.
Therefore, embodiments provide a kind of calibration steps of touch screen, comprising:
The second alignment mark controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and the equivalent touch points that described calibrator unit contact contact panel the is produced check point position corresponding with described second alignment mark is identical;
Determine the coordinate position of equivalent touch points in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
According to described check point in the coordinate position of described display panel coordinates system and the described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system;
According to the described corresponding relation determined, export after the coordinate position that touch-control occurs in described contact panel coordinate system is calibrated.
In a kind of possible implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, the second alignment mark that the first alignment mark controlled on calibrator unit and display panel show comprises: control described display panel and show the second alignment mark described at least one before carrying out contraposition.
In a kind of possible implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, when controlling multiple described second alignment mark of described display panel display, described second alignment mark controlling that described first alignment mark on described calibrator unit and described display panel show carries out contraposition and specifically comprises: control described first alignment mark on described calibrator unit and carry out contraposition successively with multiple described second alignment mark that shows on described display panel respectively;
Determine that described calibrator unit contacts the coordinate position of equivalent touch points in described contact panel coordinate system that described contact panel produces and specifically comprises: determine the coordinate position of multiple equivalent touch points respectively in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
According to described check point at the coordinate position of described display panel coordinates system and the described equivalent touch points the determined coordinate position at described contact panel coordinate system, determine that the corresponding relation of described contact panel coordinate system and described display panel coordinates system specifically comprises: according to each described check point in the coordinate position of described display panel coordinates system and each described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system.
In a kind of possible implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system, specifically comprise:
According to the coordinate position (x of each described check point in described display panel coordinates system, y) and each described equivalent touch points determined described contact panel coordinate system coordinate position (x ', y '), angle α between the transverse axis adopting the transverse axis of contact panel projected coordinate system on said display panel described in following formulae discovery and described display panel coordinates system, angle β between the longitudinal axis of described contact panel projected coordinate system on said display panel and the longitudinal axis of described display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of described contact panel coordinate system is corresponding with described projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the described contact panel coordinate system longitudinal axis numerical value corresponding with described projected coordinate system
ynumerical value, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system:
Wherein, (x
0, y
0) represent the coordinate position of the initial point of described contact panel projected coordinate system on said display panel in described display panel coordinates system.
In a kind of possible implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, described second alignment mark controlling described first alignment mark on described calibrator unit and described display panel show carries out contraposition, specifically comprises: aimed at by the central point of the central point of described first alignment mark on described calibrator unit with described second alignment mark that described display panel shows; Wherein,
The central point of described second alignment mark is corresponding check point, and the central point of described first alignment mark touches a little for described calibrator unit contacts the equivalence that described contact panel produces; Or, setting numerical value from the central point of described second alignment mark to direction initialization displacement is corresponding check point, sets numerical value touch a little for described calibrator unit contacts the equivalence that described contact panel produces from the central point of described first alignment mark to direction initialization displacement.
The embodiment of the present invention additionally provides the calibrating installation of the above-mentioned touch screen that a kind of embodiment of the present invention provides, and comprising:
Contraposition control module, the second alignment mark for controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and it is identical that a little corresponding with described second alignment mark check point position is touched in described calibrator unit is contacted equivalence that described contact panel produces;
Coordinate determining unit, for determining the coordinate position of equivalent touch points in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
Corresponding relation determining unit, for according to described check point in the coordinate position of described display panel coordinates system and the described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system;
Alignment unit, for according to the described corresponding relation determined, exports after being calibrated by the coordinate position that touch-control occurs in described contact panel coordinate system.
In a kind of possible implementation, the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, also comprises: indicative control unit, shows the second alignment mark described at least one for controlling described display panel.
In a kind of possible implementation, the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, when described indicative control unit is specifically for controlling described display panel display multiple described second alignment mark, described contraposition control module, carries out contraposition with multiple described second alignment mark that shows on described display panel respectively successively specifically for controlling described first alignment mark on described calibrator unit;
Described coordinate determining unit, specifically for determining the coordinate position of multiple equivalent touch points respectively in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
Corresponding relation determining unit, specifically for according to each described check point in the coordinate position of described display panel coordinates system and each described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system.
In a kind of possible implementation, the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, described corresponding relation determining unit, specifically for according to the coordinate position (x of each described check point in described display panel coordinates system, y) with the coordinate position (x' of each described equivalent touch points determined at described contact panel coordinate system, y '), angle α between the transverse axis adopting the transverse axis of contact panel projected coordinate system on said display panel described in following formulae discovery and described display panel coordinates system, angle β between the longitudinal axis of described contact panel projected coordinate system on said display panel and the longitudinal axis of described display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of described contact panel coordinate system is corresponding with described projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the described contact panel coordinate system longitudinal axis numerical value corresponding with described projected coordinate system
ynumerical value, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system:
Wherein, (x
0, y
0) represent the coordinate position of the initial point of described contact panel projected coordinate system on said display panel in described display panel coordinates system.
In a kind of possible implementation, the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, described contraposition control module, specifically for aiming at the central point of the central point of described first alignment mark on described calibrator unit with described second alignment mark that described display panel shows; Wherein,
The central point of described second alignment mark is corresponding check point, and the central point of described first alignment mark touches a little for described calibrator unit contacts the equivalence that described contact panel produces; Or, setting numerical value from the central point of described second alignment mark to direction initialization displacement is corresponding check point, sets numerical value touch a little for described calibrator unit contacts the equivalence that described contact panel produces from the central point of described first alignment mark to direction initialization displacement.
The embodiment of the present invention additionally provides a kind of calibration system, comprises the display panel showing the second alignment mark with contact panel, has the calibrator unit of the first alignment mark, and the calibrating installation of above-mentioned touch screen that the embodiment of the present invention provides.
In a kind of possible implementation, the calibration system of the above-mentioned touch screen that the embodiment of the present invention provides, the surface of contact of described calibrator unit and described contact panel is annulus or circle.
The beneficial effect of the embodiment of the present invention comprises:
The calibration steps of a kind of touch screen that the embodiment of the present invention provides, calibrating installation and calibration system, this calibration steps comprises: the second alignment mark first controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and the equivalent touch points that calibrator unit contact contact panel the is produced check point position corresponding with the second alignment mark is identical; Then the coordinate position of equivalent touch points in contact panel coordinate system that calibrator unit contact contact panel produces is determined; Afterwards according to check point in the coordinate position of display panel coordinates system and the equivalent touch points determined at the coordinate position of contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system; The corresponding relation that last basis is determined, exports after being calibrated by the coordinate position that touch-control occurs in contact panel coordinate system.Therefore, compared with prior art, the first alignment mark provided by the present embodiment and the second alignment mark carry out the method for contraposition, can guarantee that equivalence is touched a little identical with check point position, thus make the calibration accuracy between display panel and contact panel more accurate, be convenient to be applied in automated production process.
Accompanying drawing explanation
Fig. 1 a is the relative displacement deviation schematic diagram in existing touch screen between display panel and contact panel;
Fig. 1 b is the rotating deviation schematic diagram in existing touch screen between display panel and contact panel;
Fig. 1 c is the convergent-divergent distortion deviation schematic diagram in existing touch screen between display panel and contact panel;
The calibration steps process flow diagram of the touch screen that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the first alignment mark on the calibrator unit that Fig. 3 a provides for the embodiment of the present invention;
The structural representation of the second alignment mark that the display panel that Fig. 3 b provides for the embodiment of the present invention shows;
The central point that Fig. 4 a to Fig. 4 d is respectively the first alignment mark that the embodiment of the present invention provides contacts equivalence that contact panel produces and touches relative position schematic diagram a little with calibrator unit, and the relative position schematic diagram of the central point of the second alignment mark and corresponding check point;
The coordinate transform schematic diagram of the display panel coordinates system that Fig. 5 provides for the embodiment of the present invention and projected coordinate system;
Fig. 6 a and Fig. 6 b is respectively the structural representation of the surface of contact of calibrator unit that the embodiment of the present invention provides and contact panel.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the calibration steps of the touch screen that the embodiment of the present invention provides, calibrating installation and calibration system is described in detail.
Embodiments provide a kind of calibration steps of touch screen, as shown in Figure 2, specifically comprise following step:
S101, the second alignment mark controlling the first alignment mark on calibrator unit and display panel show carry out contraposition, and the equivalent touch points that calibrator unit contact contact panel the is produced check point position corresponding with the second alignment mark is identical;
S102, determine the coordinate position of equivalent touch points in contact panel coordinate system that produce of calibrator unit contact contact panel;
S103, according to check point in the coordinate position of display panel coordinates system and the equivalent touch points determined at the coordinate position of contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system;
The corresponding relation that S104, basis are determined, exports after being calibrated by the coordinate position that touch-control occurs in contact panel coordinate system.
In the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, first the second alignment mark controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, guarantees that the check point position that calibrator unit contacts equivalent touch points that contact panel produces corresponding with the second alignment mark is identical, then the coordinate position of equivalent touch points in contact panel coordinate system that calibrator unit contact contact panel produces is determined, afterwards according to check point at the coordinate position of display panel coordinates system and the equivalent touch points the determined coordinate position at contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, the corresponding relation that last basis is determined, export after the coordinate position that touch-control occurs in contact panel coordinate system is calibrated, therefore, compared with prior art, the first alignment mark provided by the present embodiment and the second alignment mark carry out the method for contraposition, can guarantee that equivalence is touched a little identical with check point position, thus make the calibration accuracy between display panel and contact panel more accurate, be convenient to be applied in automated production process.
Usually, in the specific implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, the second alignment mark that step S101 controls the first alignment mark on calibrator unit and display panel show carries out contraposition, specifically comprises: aimed at by the central point of the central point of the first alignment mark on calibrator unit with the second alignment mark that display panel shows; Wherein,
Particularly, Fig. 3 a and 3b respectively illustrates the structural representation of the first alignment mark A and the second alignment mark B, the shape of the first alignment mark A can be quadrilateral, also can be other rules or irregularly shaped, this shape can be arbitrary dimension, in like manner, the second alignment mark B also can be designed as arbitrary shape and size, in this no limit;
As shown in figures 4 a and 4b, the first alignment mark A central point for central point that a little the 001, second alignment mark B is touched in the equivalence that produces of calibrator unit contact contact panel be the check point 002 of correspondence; Or, as shown in Fig. 4 c and Fig. 4 d, setting numerical value L from the central point of the first alignment mark A to direction initialization displacement for equivalence that calibrator unit contact contact panel produces touches a little 001, setting numerical value L from the central point of the second alignment mark B to direction initialization displacement is corresponding check point 002, in this no limit.
In the specific implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, for the ease of performing the contraposition between the second alignment mark that the first alignment mark on step S101 alignment parts and display panel show, before execution step S101, can also comprise: control the step that display panel shows at least one the second alignment mark.
In the specific implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, in order to make the calibration accuracy between display panel and contact panel higher, multiple check point can be chosen and obtain multiple equivalent touch points and comprehensively analyze, when controlling multiple second alignment mark of display panel display, the second alignment mark that the calibration steps step S101 adopted controls the first alignment mark on calibrator unit and display panel show carries out contraposition, specifically can comprise: control the first alignment mark on calibrator unit and carry out contraposition successively with multiple second alignment marks of showing on display panel respectively, repeatedly to touch, reach the object of accurate calibration,
Step S102 determines specifically to comprise the coordinate position of equivalent touch points in contact panel coordinate system that calibrator unit contact contact panel produces: determine the coordinate position of multiple equivalent touch points respectively in contact panel coordinate system that calibrator unit contact contact panel produces;
Step S103 according to check point at the coordinate position of display panel coordinates system and the equivalent touch points the determined coordinate position at contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, specifically can comprise: according to each check point at the coordinate position of display panel coordinates system and each equivalent touch points the determined coordinate position at contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, particularly, owing to analyzing for a check point and an equivalent touch points, only to calibrate the relative translation deviation between display panel and contact panel coordinate at grade, and the equivalent touch points of multiple check point and multiple correspondence is comprehensively analyzed, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, not only can calibrate the relative translation deviation between display panel and contact panel coordinate at grade, the convergent-divergent distortion deviation can also calibrated the rotating deviation between coordinate at grade and not cause in same level.
In the specific implementation, in the calibration steps of the above-mentioned touch screen provided in the embodiment of the present invention, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, specifically can comprise:
First the formula of the corresponding relation of contact panel coordinate system and display panel coordinates system can be obtained by following method, as shown in Figure 5, xOy is the coordinate system of display panel, and x " O ' y " is contact panel projected coordinate system on a display panel, and transverse axis, the longitudinal axis of x " O ' y " are respectively l
1and l
2, l
1and l
2parametric equation respectively as follows:
Wherein, (x
0, y
0) represent the coordinate position of initial point in display panel coordinates system of contact panel projected coordinate system on a display panel, α represents the angle between the transverse axis of contact panel projected coordinate system on a display panel and the transverse axis of display panel coordinates system, and β represents the angle between the longitudinal axis of contact panel projected coordinate system on a display panel and the longitudinal axis of display panel coordinates system.
Therefore any point M in plane is (x, y) at the coordinate position of the coordinate system xOy of display panel, and the coordinate position of contact panel projected coordinate system x " O ' y " be on a display panel (x "; y "), as shown in Figure 5, M point is straight line l in fact
1linearly l
2translation distance y " after l
xwith straight line l
2linearly l
1translation distance x " after the intersection point of ly, namely
Article two, straight line l
xintersect with ly, then have, t
1=x ", t
2=y ", then have
The coordinate system xOy of display panel projects to contact panel projected coordinate system x " O ' y " on a display panel and has certain convergent-divergent change, i.e. contact panel coordinate system
Wherein, k
xrepresent the zoom factor between the transverse axis numerical value that the transverse axis numerical value of contact panel coordinate system is corresponding with projected coordinate system, k
yrepresent the zoom factor between the longitudinal axis numerical value that the longitudinal axis numerical value of contact panel coordinate system is corresponding with projected coordinate system.
Therefore, the formula of the coordinate corresponding relation of final display panel and contact panel is:
Wherein, (x
0, y
0) represent the coordinate position of initial point in display panel coordinates system of contact panel projected coordinate system on a display panel.
The method obtaining the formula of the coordinate corresponding relation of above-mentioned display panel and contact panel has multiple, in this no limit.
According to the coordinate position (x of each check point in display panel coordinates system, y) and each equivalent touch points determined contact panel coordinate system coordinate position (x ', y '), the formulae discovery of the coordinate corresponding relation of the display panel of above-mentioned acquisition and contact panel is adopted to go out angle α between the transverse axis of contact panel projected coordinate system on a display panel and the transverse axis of display panel coordinates system, angle β between the longitudinal axis of contact panel projected coordinate system on a display panel and the longitudinal axis of display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of contact panel coordinate system is corresponding with projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the contact panel coordinate system longitudinal axis numerical value corresponding with projected coordinate system
ynumerical value, just can determine the corresponding relation of contact panel coordinate system and display panel coordinates system.
In the calibration steps of the touch screen provided with a concrete example detailed description embodiment of the present invention below, determine the corresponding relation of contact panel coordinate system and display panel coordinates system, specifically comprise the following steps:
Suppose that controlling display panel shows three the second alignment marks, control the first alignment mark on calibrator unit and carry out contraposition successively with these three second alignment marks of showing on display panel respectively, when check point corresponding to first the second alignment mark is (3 at the coordinate position of display panel coordinates system, 3) time, the equivalent touch points determined is (2 at the coordinate position of contact panel coordinate system, 2), i.e. (x, y)=(3,3), (x ', y ')=(2,2); When check point corresponding to second the second alignment mark is (5 at the coordinate position of display panel coordinates system, 5) time, the equivalent touch points determined is (4 at the coordinate position of contact panel coordinate system, 4), i.e. (x, y)=(5,5), (x ', y ')=(4,4); When the 3rd check point that the second alignment mark is corresponding is (7 at the coordinate position of display panel coordinates system, 7), time, the equivalent touch points determined is (6,6) at the coordinate position of contact panel coordinate system, i.e. (x, y)=(7,7), (x ', y ')=(6,6), respectively above-mentioned data are substituted into successively the formula of the display panel of above-mentioned acquisition and the coordinate corresponding relation of contact panel, namely obtain following three groups of system of equations:
According to above-mentioned three groups of system of equations, the zoom factor between the transverse axis numerical value transverse axis numerical value corresponding with projected coordinate system that can calculate angle β=60 between angle α=30 between the transverse axis of contact panel projected coordinate system on a display panel and the transverse axis of display panel coordinates system °, the longitudinal axis of contact panel projected coordinate system on a display panel and the longitudinal axis of display panel coordinates system °, contact panel coordinate system
zoom factor between the longitudinal axis numerical value that the longitudinal axis numerical value of contact panel coordinate system is corresponding with projected coordinate system
and the initial point of contact panel projected coordinate system is on a display panel (1,1) at the coordinate position of display panel coordinates system, i.e. (x
0, y
0)=(1,1), then the corresponding relation of contact panel coordinate system and display panel coordinates system is:
Based on same inventive concept, the embodiment of the present invention additionally provides the calibrating installation of the above-mentioned touch screen that a kind of embodiment of the present invention provides, and comprising:
Contraposition control module, the second alignment mark for controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and it is identical that a little corresponding with the second alignment mark check point position is touched in calibrator unit is contacted equivalence that contact panel produces;
Coordinate determining unit, for determining the coordinate position of equivalent touch points in contact panel coordinate system that calibrator unit contact contact panel produces;
Corresponding relation determining unit, for according to check point in the coordinate position of display panel coordinates system and the equivalent touch points determined at the coordinate position of contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system;
Alignment unit, for according to the corresponding relation determined, exports after being calibrated by the coordinate position that touch-control occurs in contact panel coordinate system.
In the specific implementation, at the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, also comprising: indicative control unit, showing at least one second alignment mark for controlling display panel.
The calibrating installation of the touch screen using this example to provide, can guarantee that equivalence is touched a little identical with check point position, thus make the calibration accuracy between display panel and contact panel more accurate.
In the specific implementation, at the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, when indicative control unit is specifically for controlling display panel display multiple second alignment mark, contraposition control module, specifically may be used for controlling the first alignment mark on calibrator unit and carries out contraposition successively with multiple second alignment marks of showing on display panel respectively;
Coordinate determining unit, specifically may be used for the coordinate position of multiple equivalent touch points respectively in contact panel coordinate system determining that calibrator unit contact contact panel produces;
Corresponding relation determining unit, specifically to may be used for according to each check point in the coordinate position of display panel coordinates system and each equivalent touch points determined, at the coordinate position of contact panel coordinate system, determining the corresponding relation of contact panel coordinate system and display panel coordinates system.
In the specific implementation, at the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, corresponding relation determining unit, specifically may be used for according to the coordinate position (x of each check point in display panel coordinates system, y) with the coordinate position (x' of each equivalent touch points determined at contact panel coordinate system, y '), adopt the angle α between the transverse axis of following formulae discovery contact panel projected coordinate system on a display panel and the transverse axis of display panel coordinates system, angle β between the longitudinal axis of contact panel projected coordinate system on a display panel and the longitudinal axis of display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of contact panel coordinate system is corresponding with projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the contact panel coordinate system longitudinal axis numerical value corresponding with projected coordinate system
ynumerical value, determine the corresponding relation of contact panel coordinate system and display panel coordinates system:
Wherein, (x
0, y
0) represent the coordinate position of initial point in display panel coordinates system of contact panel projected coordinate system on a display panel.
In the specific implementation, at the calibrating installation of the above-mentioned touch screen that the embodiment of the present invention provides, contraposition control module, specifically for aiming at the central point of the central point of the first alignment mark on calibrator unit with the second alignment mark that display panel shows; Wherein,
As shown in figures 4 a and 4b, the first alignment mark A central point for central point that a little the 001, second alignment mark B is touched in the equivalence that produces of calibrator unit contact contact panel be the check point 002 of correspondence; Or, as shown in Fig. 4 c and Fig. 4 d, setting numerical value L from the central point of the first alignment mark B to direction initialization displacement for equivalence that calibrator unit contact contact panel produces touches a little 001, setting numerical value L from the central point of the second alignment mark B to direction initialization displacement is corresponding check point 002, in this no limit.
The present invention additionally provides a kind of calibration system of touch screen simultaneously, comprising: the display panel showing the second alignment mark with contact panel, has the calibrator unit of the first alignment mark, and the calibrating installation of above-mentioned touch screen that the embodiment of the present invention provides.
In the specific implementation, in the calibration system of the above-mentioned touch screen provided in the embodiment of the present invention, the surface of contact of calibrator unit and contact panel is annulus or circle, as shown in Figure 6 a, the surface of contact of calibrator unit and contact panel is annulus C, now the central point of annulus C and the central point of the first alignment mark A coincide, when the first alignment mark A central point for the equivalence that produces of calibrator unit contact contact panel touch a little 001 time, the equivalence that the central point of annulus C also can produce for calibrator unit contact contact panel touches a little 001, as shown in Figure 6 b, the surface of contact of calibrator unit and contact panel is circle D, now the round central point of D and the central point of the first alignment mark A set numerical value L point position to direction initialization displacement and coincide, when set from the central point of the first alignment mark A to direction initialization displacement numerical value L for equivalence that calibrator unit contact contact panel produces touch a little 001 time, the central point of circle D also can touch a little 001 for calibrator unit contacts the contact panel equivalence that produce, above-mentioned annulus C and circle D is metal material, can also be other rules or irregularly shaped at the surface of contact of this calibrator unit and contact panel, in this no limit.
The calibration steps of a kind of touch screen that the embodiment of the present invention provides, calibrating installation and calibration system, this calibration steps comprises: the second alignment mark first controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and the equivalent touch points that calibrator unit contact contact panel the is produced check point position corresponding with the second alignment mark is identical; Then the coordinate position of equivalent touch points in contact panel coordinate system that calibrator unit contact contact panel produces is determined; Afterwards according to check point in the coordinate position of display panel coordinates system and the equivalent touch points determined at the coordinate position of contact panel coordinate system, determine the corresponding relation of contact panel coordinate system and display panel coordinates system; The corresponding relation that last basis is determined, exports after being calibrated by the coordinate position that touch-control occurs in contact panel coordinate system.Therefore, compared with prior art, the first alignment mark provided by the present embodiment and the second alignment mark carry out the method for contraposition, can guarantee that equivalence is touched a little identical with check point position, thus make the calibration accuracy between display panel and contact panel more accurate, be convenient to be applied in automated production process.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a calibration steps for touch screen, is characterized in that, comprising:
The second alignment mark controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and the equivalent touch points that described calibrator unit contact contact panel the is produced check point position corresponding with described second alignment mark is identical;
Determine the coordinate position of equivalent touch points in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
According to described check point in the coordinate position of described display panel coordinates system and the described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system;
According to the described corresponding relation determined, export after the coordinate position that touch-control occurs in described contact panel coordinate system is calibrated.
2. the method for claim 1, it is characterized in that, the second alignment mark that the first alignment mark controlled on calibrator unit and display panel show comprises: control described display panel and show the second alignment mark described at least one before carrying out contraposition.
3. method as claimed in claim 2, it is characterized in that, when controlling multiple described second alignment mark of described display panel display, described second alignment mark controlling that described first alignment mark on described calibrator unit and described display panel show carries out contraposition and specifically comprises: control described first alignment mark on described calibrator unit and carry out contraposition successively with multiple described second alignment mark that shows on described display panel respectively;
Determine that described calibrator unit contacts the coordinate position of equivalent touch points in described contact panel coordinate system that described contact panel produces and specifically comprises: determine the coordinate position of multiple equivalent touch points respectively in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
According to described check point at the coordinate position of described display panel coordinates system and the described equivalent touch points the determined coordinate position at described contact panel coordinate system, determine that the corresponding relation of described contact panel coordinate system and described display panel coordinates system specifically comprises: according to each described check point in the coordinate position of described display panel coordinates system and each described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system.
4. method as claimed in claim 3, is characterized in that, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system, specifically comprise:
According to the coordinate position (x of each described check point in described display panel coordinates system, y) with the coordinate position (x' of each described equivalent touch points determined at described contact panel coordinate system, y '), angle α between the transverse axis adopting the transverse axis of contact panel projected coordinate system on said display panel described in following formulae discovery and described display panel coordinates system, angle β between the longitudinal axis of described contact panel projected coordinate system on said display panel and the longitudinal axis of described display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of described contact panel coordinate system is corresponding with described projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the described contact panel coordinate system longitudinal axis numerical value corresponding with described projected coordinate system
ynumerical value, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system:
Wherein, (x
0, y
0) represent the coordinate position of the initial point of described contact panel projected coordinate system on said display panel in described display panel coordinates system.
5. the method as described in any one of claim 1-4, it is characterized in that, described second alignment mark controlling described first alignment mark on described calibrator unit and described display panel show carries out contraposition, specifically comprises: aimed at by the central point of the central point of described first alignment mark on described calibrator unit with described second alignment mark that described display panel shows; Wherein,
The central point of described second alignment mark is corresponding check point, and the central point of described first alignment mark touches a little for described calibrator unit contacts the equivalence that described contact panel produces; Or, setting numerical value from the central point of described second alignment mark to direction initialization displacement is corresponding check point, sets numerical value touch a little for described calibrator unit contacts the equivalence that described contact panel produces from the central point of described first alignment mark to direction initialization displacement.
6. a calibrating installation for touch screen, is characterized in that, comprising:
Contraposition control module, the second alignment mark for controlling the first alignment mark on calibrator unit and display panel show carries out contraposition, and it is identical that a little corresponding with described second alignment mark check point position is touched in described calibrator unit is contacted equivalence that described contact panel produces;
Coordinate determining unit, for determining the coordinate position of equivalent touch points in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
Corresponding relation determining unit, for according to described check point in the coordinate position of described display panel coordinates system and the described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system;
Alignment unit, for according to the described corresponding relation determined, exports after being calibrated by the coordinate position that touch-control occurs in described contact panel coordinate system.
7. calibrating installation as claimed in claim 6, is characterized in that, also comprises: indicative control unit, showing the second alignment mark described at least one for controlling described display panel.
8. calibrating installation as claimed in claim 7, it is characterized in that, when described indicative control unit is specifically for controlling described display panel display multiple described second alignment mark, described contraposition control module, carries out contraposition with multiple described second alignment mark that shows on described display panel respectively successively specifically for controlling described first alignment mark on described calibrator unit;
Described coordinate determining unit, specifically for determining the coordinate position of multiple equivalent touch points respectively in described contact panel coordinate system that described calibrator unit contacts described contact panel and produces;
Corresponding relation determining unit, specifically for according to each described check point in the coordinate position of described display panel coordinates system and each described equivalent touch points determined at the coordinate position of described contact panel coordinate system, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system.
9. calibrating installation as claimed in claim 8, it is characterized in that, described corresponding relation determining unit, specifically for according to the coordinate position (x of each described check point in described display panel coordinates system, y) with the coordinate position (x' of each described equivalent touch points determined at described contact panel coordinate system, y '), angle α between the transverse axis adopting the transverse axis of contact panel projected coordinate system on said display panel described in following formulae discovery and described display panel coordinates system, angle β between the longitudinal axis of described contact panel projected coordinate system on said display panel and the longitudinal axis of described display panel coordinates system, zoom factor k between the transverse axis numerical value that the transverse axis numerical value of described contact panel coordinate system is corresponding with described projected coordinate system
xand the zoom factor k between the longitudinal axis numerical value of the described contact panel coordinate system longitudinal axis numerical value corresponding with described projected coordinate system
ynumerical value, determine the corresponding relation of described contact panel coordinate system and described display panel coordinates system:
Wherein, (x
0, y
0) represent the coordinate position of the initial point of described contact panel projected coordinate system on said display panel in described display panel coordinates system.
10. the calibrating installation as described in any one of claim 6-9, it is characterized in that, described contraposition control module, specifically for aiming at the central point of the central point of described first alignment mark on described calibrator unit with described second alignment mark that described display panel shows; Wherein,
The central point of described second alignment mark is corresponding check point, and the central point of described first alignment mark touches a little for described calibrator unit contacts the equivalence that described contact panel produces; Or, setting numerical value from the central point of described second alignment mark to direction initialization displacement is corresponding check point, sets numerical value touch a little for described calibrator unit contacts the equivalence that described contact panel produces from the central point of described first alignment mark to direction initialization displacement.
11. 1 kinds of calibration systems, is characterized in that, comprise the display panel showing the second alignment mark with contact panel, have the calibrator unit of the first alignment mark, and the calibrating installation of touch screen as described in any one of claim 6-10.
12. calibration systems as claimed in claim 11, is characterized in that, the surface of contact of described calibrator unit and described contact panel is annulus or circle.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105630228A (en) * | 2015-10-28 | 2016-06-01 | 网易（杭州）网络有限公司 | Touch screen input direction correction and response method and apparatus as well as game control method and apparatus |
| CN105700744A (en) * | 2016-01-07 | 2016-06-22 | 顾正堂 | Input point positioning system and method for touch screen of mobile terminal, and mobile terminal |
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| CN106708316A (en) * | 2016-12-02 | 2017-05-24 | 业成科技（成都）有限公司 | Touch device |
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| CN109742050A (en) * | 2019-01-03 | 2019-05-10 | 京东方科技集团股份有限公司 | Substrate and alignment method, equipment |
| CN109817128A (en) * | 2019-01-28 | 2019-05-28 | 云谷（固安）科技有限公司 | A kind of method and device of false pressure contraposition |
| WO2019100299A1 (en) * | 2017-11-23 | 2019-05-31 | 深圳市柔宇科技有限公司 | Head-mounted display apparatus and automatic calibration method of touch device thereof |
| CN111816073A (en) * | 2020-07-06 | 2020-10-23 | 京东方科技集团股份有限公司 | Display module, display device and calibration method of display module |
| US10955977B2 (en) | 2015-11-03 | 2021-03-23 | Microsoft Technology Licensing, Llc | Extender object for multi-modal sensing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235661A (en) * | 2013-04-13 | 2013-08-07 | 北京汇冠新技术股份有限公司 | Positioning clicking device and method and touch display screen calibration system and method |
| CN103488368A (en) * | 2013-10-16 | 2014-01-01 | 深圳市开立科技有限公司 | Screen calibrating method and device for touch screen in Android system |
| CN103941851A (en) * | 2013-01-23 | 2014-07-23 | 青岛海信电器股份有限公司 | Method and system for achieving virtual touch calibration |
| CN104020869A (en) * | 2013-02-28 | 2014-09-03 | 晨星半导体股份有限公司 | Touch panel and correction device thereof |
-
2014
- 2014-12-08 CN CN201410746380.3A patent/CN104391603B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941851A (en) * | 2013-01-23 | 2014-07-23 | 青岛海信电器股份有限公司 | Method and system for achieving virtual touch calibration |
| CN104020869A (en) * | 2013-02-28 | 2014-09-03 | 晨星半导体股份有限公司 | Touch panel and correction device thereof |
| CN103235661A (en) * | 2013-04-13 | 2013-08-07 | 北京汇冠新技术股份有限公司 | Positioning clicking device and method and touch display screen calibration system and method |
| CN103488368A (en) * | 2013-10-16 | 2014-01-01 | 深圳市开立科技有限公司 | Screen calibrating method and device for touch screen in Android system |
Cited By (23)
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|---|---|---|---|---|
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| CN106155410B (en) * | 2015-05-12 | 2021-04-09 | 三星显示有限公司 | Touch panel and correction method thereof |
| CN105630228A (en) * | 2015-10-28 | 2016-06-01 | 网易（杭州）网络有限公司 | Touch screen input direction correction and response method and apparatus as well as game control method and apparatus |
| CN105630228B (en) * | 2015-10-28 | 2018-10-09 | 网易（杭州）网络有限公司 | Touch-screen input adjustment in direction and response method, device and game control method, device |
| CN108351732B (en) * | 2015-11-03 | 2021-04-23 | 微软技术许可有限责任公司 | Flexible multilayer sensing surface |
| US10955977B2 (en) | 2015-11-03 | 2021-03-23 | Microsoft Technology Licensing, Llc | Extender object for multi-modal sensing |
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| CN107111419A (en) * | 2016-09-27 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Calibration method, calibrating installation, calibration system and calibration memory |
| CN106708316B (en) * | 2016-12-02 | 2019-12-10 | 业成科技（成都）有限公司 | Touch control device |
| CN106708316A (en) * | 2016-12-02 | 2017-05-24 | 业成科技（成都）有限公司 | Touch device |
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