Summary of the invention
The technical problem to be solved in the present invention is that promoting the accuracy of touch screen report point.
For this purpose, including the following steps: according in a first aspect, present example provides a kind of touch screen bearing calibration
Touch event occurs on touch screen for acquisition；The report point information aggregate of touch screen is obtained in response to touch event, is reportedPoint information aggregate is the information aggregate of multiple report points of touch event triggering；Touch area is determined according to report point information aggregate；It goesReport point in addition to touch area.
Optionally, touch area is determined according to report point information aggregate, comprising: the distribution of the report point in the multiple report points of statistics is closeDegree；Determine that the distribution density of report point is greater than the region of pre-set density；The region that the distribution density of report point is greater than pre-set density is madeFor touch area.
Optionally, touch event occurs on touch screen in acquisition and response touch event obtains the report point information of touch screenBetween set, further includes: judge whether current state is correcting state according to the state of touch event；If current state is schoolPositive status then executes the step of response touch event obtains the report point information aggregate of touch screen.First triggering information is to keep pre-If the trigger event of duration；Obtaining the first triggering of the first triggering information and response that trigger event occurs for characterizing touch screenInformation obtains between the first report point information aggregate of touch screen, further includes: judges current shape according to the trigger event of preset durationWhether state is correcting state；If current state is correcting state, response the first triggering information obtains the first report of touch screenPoint information aggregate.
Optionally, report point information aggregate includes report point location sets and/or report point duration set, according to report point information aggregateDetermine that touch area includes: the distribution density of the report point position in the multiple report points of statistics；Determine that the distribution density of report point position is bigIn the region of predeterminated position density；The distribution density of report point position is greater than the region of predeterminated position density as touch area；Or the distribution density of the report point duration in the multiple report points of statistics；Determine that the distribution density of report point duration is greater than preset duration densityRegion；The distribution density of report point duration is greater than the region of preset duration density as touch area.
Optionally, report point information aggregate includes report point location sets and report duration set, true according to report point information aggregateDetermine the distribution density that touch area includes: the report point position and report point duration in the multiple report points of statistics；Determine minute of report point positionCloth density is greater than the first area of predeterminated position density and the distribution density of report point duration is greater than the second of preset duration densityRegion；Using first area and the region of second area intersection as touch area.
According to second aspect, the embodiment of the invention also provides a kind of touch screen means for correctings, comprising: acquiring unit is usedTouch event occurs on touch screen in obtaining；Response unit obtains the report point information aggregate of touch screen in response to touch event,Report point information aggregate is the information aggregate of multiple report points of touch event triggering；Determination unit, for according to report point information aggregateDetermine touch area；Removal unit, for removing the point of the report outside touch area.
Optionally it is determined that unit includes: the first statistics subelement, the distribution for counting the report point in multiple report points is closeDegree；First determines subelement, for determining that the distribution density of report point is greater than the region of pre-set density；First touches subelement, usesIn will report distribution density a little be greater than pre-set density region as touch area.
Optionally, touch screen means for correcting further include: judging unit judges current shape for the state according to touch eventWhether state is correcting state；After judging unit judges to obtain current state as correcting state, the first response unit is for respondingTouch event obtains the report point information aggregate of touch screen.
Optionally it is determined that unit further include: the second statistics subelement, for counting minute of the report point position in multiple report pointsCloth density；Second determines subelement, for determining the region for reporting the distribution density of point position to be greater than predeterminated position density；Second touchingSubelement is touched, for the distribution density of some positions will to be reported to be greater than the region of predeterminated position density as touch area；Or thirdSubelement is counted, for counting the distribution density of the report point duration in multiple report points；Third determines subelement, for determining report pointThe distribution density of duration is greater than the region of preset duration density；Third touch unit, for the distribution density of some durations will to be reported bigIn the region of preset duration density as touch area.
Optionally it is determined that unit further include: the 4th statistics subelement, for counting report point position and report in multiple report pointsThe distribution density of point duration；4th determines subelement, for determining that the distribution density for reporting point position is greater than predeterminated position densityThe distribution density of first area and report point duration is greater than the second area of preset duration density；4th touch subelement is used for,Using first area and the region of second area intersection as touch area.
The touch screen bearing calibration and device that present example provides obtain when touch screen operates and respond touchingPhotos and sending messages obtain the report point information corresponding with operation on touch screen, can determine report point information according to the set of report point informationThe region more concentrated is distributed as touch area, i.e. non-interference region, the point outside the region, which can consider, reports point to be abnormal,For external environmental interference generation, the report point outside predeterminable area is removed, it is thus possible to filter due to the generation of extraneous power supply disturbanceReport point information improves the anti-interference ability of touch screen and the accuracy of report point.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementationExample is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skillPersonnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It canTo be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be withIt is the connection inside two elements, can be wireless connection, be also possible to wired connection.For those of ordinary skill in the artFor, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The embodiment of the invention provides a kind of touch screen bearing calibrations, as shown in Figure 1, this method comprises the following steps:
S110. it obtains and touch event occurs on touch screen.In the particular embodiment, touch screen may include: to touchLayer and display layer, on touch screen after sounding touch event, touch event can be converted to touch signal transmission by touch layerTo processor, for example, touch screen can acquire touching position information, the information such as duration information are touched, and by touching position informationAnd/or touch duration information is converted into electric signal and is sent to processor.Display layer, for example, liquid crystal display (LiquidCrystal Display, LCD) show the report point information triggered with triggering information, when touching to touch screen, Ke YixuanAny point on touch screen is taken to carry out touch-control.
S120. the report point information aggregate of touch screen is obtained in response to touch event.In the present embodiment, alleged report point informationCollection is combined into the information aggregate of multiple report points of touch event triggering.It in the particular embodiment, can after getting touch eventTo obtain the touch location on touch layer, by the contrast conting with reference coordinate, available need report point position to be shown；Similarly, after getting touch event, touch duration on available touch layer, when lasting touch-control, for example, long-pressing, it canWith Fixed Time Interval report point.Due to that there may be the presence of electric interfering field, when carrying out touch-control, touching may be will appear in multiple spotEvent is touched, such as multiple spot is disturbed the report points that multiple report point positions and/or multiple and different durations are likely to occur after electric field triggers.InUnder the triggering of interference, in fact it could happen that the very big report point of position deviation, it is also possible to instantaneous report point occur.Therefore thing is being touched in responseWhen part, multiple report point information may be will form.It in the present embodiment, can be by report point information in the form of images (for example, arrowHead, the images such as dot) display is on a display screen.
S130. touch area is determined according to report point information aggregate.In the particular embodiment, alleged touch area is non-dryResponse region is disturbed, when touching to the certain point on touch screen, multiple report points that response touch event generates are distributed in touchingA surrounding is touched, the duration of the position coordinates and/or multiple report points in multiple report point information can be counted, obtain reporting point in a certain seatA certain region is set the report point information content of generation as total report point Information Number by the probability of mark and/or a certain duration centainly occurredThe region that the preset percentage of amount such as ratio is 95 percent, is set as touch area.For example, can be by the report of generationPoint information distribution is approximate to be used as normal distribution, and 95% confidence interval can be set as to touch area, equally can also be by 99%Confidence interval is set as touch area.In the present embodiment, the touch accuracy which can according to need is configured.
S140. the report point outside touch area is removed.In the particular embodiment, if report point information exceeds touch area,It may be considered that the report point is the report point that electric interfering field touch event generates, the report point removal of touch area can be will exceed, withFilter interference of the external environment to touch event.To improve the accuracy of touch operation.
In optionally embodiment, when being corrected to touch screen, touch screen should be at correcting state, in stepIt can also include: the long-pressing touch-control that preset duration can be carried out to touch screen between S11 and step S12, alleged preset duration canTo be obtained by experience, is summarizing to obtain a best triggering duration by analysis of experimental data, obtained in preset durationReport point accurately touch screen can be corrected.Optionally,
S150. judge whether current state is correcting state according to the state of touch event.If current state is correctionState then enters step S12.Specifically, it needs touch screen being adjusted to correcting state before being corrected touch screen, it canWhether to be preset state according to the thermodynamic state verification current state of touch event, such as, it can be determined that when the holding of touch eventIt is long whether to exceed preset duration, if exceeding preset duration, judge current state for correcting state；Or judge touch eventWhether the number occurred within a preset period of time exceeds preset times, if exceeding preset times, judges current state for schoolPositive status；Or judge whether the pressure that touch event generates on the touchscreen is greater than preset pressure, when being greater than preset pressureJudge current state for correcting state.Or can be first time continuous touch-control state before being corrected, for example, factory shapeState.It is not processed if current state is not correcting state.
In optionally embodiment, as shown in Fig. 2, step S13 may include:
S131. the distribution density of the report point in multiple report points is counted.In the particular embodiment, occur in touch eventWhen, response touch event generates multiple report points and is distributed on touch screen, the information of each report point can be counted, according to the letter of statisticsBreath determines the distribution situation of each report point, obtains the distribution density of report point.
S132. determine that the distribution density of report point is greater than the region of pre-set density.It in the particular embodiment, can be according to reportThe touch accuracy of point information aggregate and needs determines the region for being greater than pre-set density.Specific pre-set density can be according to beingExperimental data counts to obtain.
S133. the distribution density of report point is greater than the region of pre-set density as touch area.It chooses and is greater than pre-set densityReport point composition region be used as touch area, in this region report point be distributed more concentrates, can accurately react touchingTouch event.
Report point information aggregate may include report point location sets and/or report point duration set, and report point position can be more straightThe order of accuarcy that reflects touch control operation seen, report point duration more can intuitively reflect touch screen when receiving touch-controlSensitivity level.It is right by taking report point information aggregate is report point location sets and/or report point duration set as an example in optionally embodimentTouch screen bearing calibration is illustrated.As shown in figure 3, may include steps of:
S210. it obtains and touch event occurs on touch screen.Specifically may refer in above-described embodiment step S11 forObtain the description that touch event occurs on touch screen.
S220. the report point location sets and/or report point duration set of touch screen are obtained in response to touch event.Specifically may be usedReferring to the description of the report point information aggregate in above-described embodiment step S120 for obtaining touch screen in response to touch event.
S230. touch area is determined according to report point location sets and/or report point duration set.It specifically may refer to above-mentionedFor according to the description for reporting point information aggregate to determine touch area in embodiment step S130.
S240. the report point outside touch area is removed.It specifically may refer in above-described embodiment in step S140 for goingThe description of report point in addition to touch area.
In optionally embodiment, with report point location sets be report point information aggregate to according to report point location sets and/orReport point duration set determines touch area, as shown in figure 4, step S230 may include:
S231a. the distribution density of the report point position in multiple report points is counted.In the particular embodiment, it can count eachThe coordinate of a report point obtains distribution situation of each report point on touch screen according to the coordinate of report point, then available multipleThe distribution density of report point position.
S232a. determine that the distribution density of report point position is greater than the region of predeterminated position density.In specifically implementing,Point is reported according to the part that the available coordinate value of coordinate of each report point of statistics is more concentrated, predeterminated position density can basisThe distribution of coordinate value and the touch precision of needs determine.
S233a. the distribution density of report point position is greater than the region of predeterminated position density as touch area.
In optionally embodiment, with report point a duration collection be combined into report point information aggregate to according to report point location sets and/orReport point duration set determines touch area, as shown in figure 5, step S230 may include:
S231b. the distribution density of the report point duration in multiple report points is counted.Due to the presence of interference, it is possible that winkTimes point can count the report point duration of each report point, determine the distribution situation of the report point duration of multiple report points.
S232b. determine that the distribution density of report point duration is greater than the region of preset duration density.In the particular embodiment,Report point duration can be chosen and be distributed one section of more duration as preset duration density, determine report point group all in the durationAt the region for being greater than preset duration density.
S233b. the distribution density of report point duration is greater than the region of preset duration density as touch area.
In optionally embodiment, report point information aggregate is combined into according to report point with report point location sets and report point duration collectionLocation sets and/or report point duration set determine touch area, as shown in fig. 6, step S230 may include:
S231c. the report point position in multiple report points and the distribution density of report point duration are counted.It can specifically combine above-mentionedIt reports the description of point position and report point duration in embodiment in step S231a and step S231b to statistics, while counting report point positionWith the distribution density of report point duration.
S232c. determine that the distribution density of report point position is greater than the first area of predeterminated position density and reports point durationDistribution density is greater than the second area of preset duration density.It specifically can be in conjunction with step S232a and step in above-described embodimentTo the description for reporting the region of point position and report point duration is determined in S232b, alleged first area is to be determined according to report point positionRegion；Alleged second area is the region determined according to report point duration.
S233c. using first area and the region of second area intersection as touch area.
The touch screen bearing calibration that present example provides obtains and responds triggering information when touch screen operates,The report point information corresponding with operation on touch screen is obtained, the distribution of report point information can be determined more according to the set of report point informationThe region of concentration is as touch area, i.e. non-interference region, and the point outside the region, which can consider, reports point to be abnormal, for extraneous ringBorder interference generates, and the report point outside predeterminable area is removed, it is thus possible to filter the report point letter generated due to extraneous power supply disturbanceBreath improves the anti-interference ability of touch screen and the accuracy of report point.
The embodiment of the invention also provides a kind of touch screen means for correctings, as shown in fig. 7, the device includes:
For obtaining touch event occurs on touch screen for acquiring unit 710；Response unit 720, in response to touch eventThe report point information aggregate of touch screen is obtained, report point information aggregate is the information aggregate of multiple report points of touch event triggering；It determinesUnit 730, for determining touch area according to report point information aggregate；Removal unit 740, for removing the report outside touch areaPoint.
Optionally it is determined that unit 730 includes: the first statistics subelement, for counting the distribution of the report point in multiple report pointsDensity；First determines subelement, for determining that the distribution density of report point is greater than the region of pre-set density；First touches subelement,For distribution density a little will to be reported to be greater than the region of pre-set density as touch area.
Optionally, touch screen means for correcting further include: judging unit judges current shape for the state according to touch eventWhether state is correcting state；After judging unit judges to obtain current state as correcting state, the first response unit is for respondingTouch event obtains the report point information aggregate of touch screen.
Optionally it is determined that unit 730 further include: the second statistics subelement, for counting the report point position in multiple report pointsDistribution density；Second determines subelement, for determining the region for reporting the distribution density of point position to be greater than predeterminated position density；TheTwo touch subelement, for the distribution density of some positions will to be reported to be greater than the region of predeterminated position density as touch area；OrThird counts subelement, for counting the distribution density of the report point duration in multiple report points；Third determines subelement, for determiningThe distribution density of report point duration is greater than the region of preset duration density；Third touch unit, for the distribution of some durations will to be reported closeDegree is greater than the region of preset duration density as touch area.
Optionally it is determined that unit 730 further include: the 4th statistics subelement, for counting the report point position in multiple report pointsWith the distribution density of report point duration；4th determines subelement, reports the distribution density of point position close greater than predeterminated position for determiningThe distribution density of the first area of degree and report point duration is greater than the second area of preset duration density；4th, which touches subelement, usesIn using first area and the region of second area intersection as touch area.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hairVarious modifications and variations can be made in the case where bright spirit and scope, and such modifications and variations are each fallen within by appended claimsWithin limited range.