CN105045439A - Touch screen multi-point positioning method and apparatus and touchscreen device - Google Patents
Touch screen multi-point positioning method and apparatus and touchscreen device Download PDFInfo
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Abstract
Embodiments of the present invention disclose a touch screen multi-point positioning method and apparatus and a touchscreen device, relate to the field of touch technologies, and can reduce invalid computation in a multi-touch point positioning process, reduce a response time of a touch screen, and improve a response rate. A specific solution is that: performing scanning in a first scanning direction and a second scanning direction in a scanning period, to obtain a first touch area and a second touch area; acquiring an intersection area of the first touch area and the second touch area, to obtain at least one candidate judging area; determining whether a light path that passes through the candidate judging area in a third scanning direction is covered by the candidate judging area; if yes, determining that the candidate judging area is a valid judging area; if no, determining that the candidate judging area is an invalid judging area; and positioning in the valid judging area, to obtain a true touch point. The embodiments of the present invention are applied to a touch screen multi-point positioning process.
Description
Technical field
The present invention relates to technical field of touch control, particularly relate to a kind of touch-screen multipoint positioning method, device and touch-screen equipment.
Background technology
Along with the proposition of novel human-machine interaction technology-touch screen technology, the input control mode of electronic product changes touch-screen control mode into by traditional keyboard or mouse control mode gradually.Compared to traditional input control mode, touch screen technology can provide the man-machine interaction more simplified service for user.Wherein, infrared touch technology is a kind of common touch screen technology.The orthogonal structure of the infrared touch panel that infrared touch technology adopts, infrared touch panel is made up of a long transmitting side, long reception limit, a short transmitting side and a short receptor limit.
In prior art, for multiple touch points positioning scenarios, infrared touch technology generally adopts the scanning of each direction of scanning on long and short limit, to determine the light path that is blocked on each direction of scanning on long and short limit; Then the touch area (touch area on a direction of scanning is when touch-screen exists touch point, the region that the continuous parallel light path that touched point is blocked forms) that the light path that is blocked on each direction of scanning is formed is obtained; The set of candidate touch point is calculated according to the common factor of touch area on different scanning direction; Terrible point is removed, location true touch point from the set of candidate touch point.
But Problems existing is: in prior art when carrying out multiple touch points location, the touch point that the common factor comprising all touch areas in the candidate touch point set calculated is formed, namely not only need to calculate all true touch points, also need to calculate all terrible points; In such computing method, the operand of performed invalid computing (calculating of ghost point) is larger, need the longer time can complete the calculating of all touch points (comprising ghost point and true touch point), the response time of infrared touch panel is longer, and the speed of response is slow.
Summary of the invention
Embodiments of the invention provide a kind of touch-screen multipoint positioning method, device and touch-screen equipment, can reduce invalid operand in multiple touch points position fixing process, reduce the response time of touch-screen, improve the speed of response.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The first aspect of the embodiment of the present invention, provide a kind of touch-screen multipoint positioning method, be applied to touch-screen equipment, described method comprises:
Within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed;
Obtain the overlapping region of described first touch area and described second touch area, obtain at least one candidate's determinating area;
Determine whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area;
From described effective determinating area, location obtains true touch point.
The second aspect of the embodiment of the present invention, also provides a kind of touch-screen multi-point positioning device, comprising:
First acquiring unit, within a scan period, carries out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed;
Second acquisition unit, for obtaining described described first touch area of the first acquiring unit acquisition and the overlapping region of described second touch area, obtains at least one candidate's determinating area;
Determining unit, for determining whether the light path of described candidate's determinating area that the 3rd direction of scanning obtains through described second acquisition unit is blocked by described candidate's determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area;
Positioning unit, obtains true touch point for location in described effective determinating area of determining from described determining unit.
The third aspect of the embodiment of the present invention, also provides a kind of touch-screen equipment, comprising:
Storer, for storing batch processing code;
Processor, for the batch processing code stored according to described storer, performs the touch-screen multipoint positioning method that first aspect present invention exemplifies.
Touch-screen multipoint positioning method, device and touch-screen equipment that the embodiment of the present invention provides, within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area; Determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is blocked by candidate's determinating area, then determine that candidate's determinating area is effective determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is not blocked by candidate's determinating area, then determine that candidate's determinating area is invalid determinating area; From effective determinating area, location obtains true touch point.
Compared with prior art, by this programme, invalid determinating area and effective determinating area can be determined from candidate's determinating area, owing to comprising all true touch points in effective determinating area, and in invalid determinating area, only comprise terrible point; Therefore calculate true touch point according to effective determinating area, and can not invalid determinating area be calculated, therefore can reduce invalid operand in multiple touch points position fixing process, and then the response time of touch-screen can be reduced, improve the speed of response.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of a kind of touch-screen multipoint positioning method that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of the another kind of touch-screen multipoint positioning method that Fig. 2 provides for the embodiment of the present invention;
The example schematic of a kind of first touch area that Fig. 3 provides for the embodiment of the present invention;
The example schematic of a kind of second touch area that Fig. 4 provides for the embodiment of the present invention;
The example schematic of the overlapping region of the first touch area that Fig. 5 provides for the embodiment of the present invention and the second touch area;
The example schematic of a kind of candidate's determinating area that Fig. 6 provides for the embodiment of the present invention;
The schematic flow sheet of the another kind of touch-screen multipoint positioning method that Fig. 7 provides for the embodiment of the present invention;
The example schematic of the association touch area on the direction of scanning b that Fig. 8 provides for the embodiment of the present invention;
The example schematic of the association touch area on the direction of scanning b that Fig. 9 provides for the embodiment of the present invention;
The example schematic of the association touch area on the direction of scanning c that Figure 10 provides for the embodiment of the present invention;
The example schematic of the association touch area on the direction of scanning d that Figure 11 provides for the embodiment of the present invention;
The example schematic of the association touch area on the direction of scanning e that Figure 12 provides for the embodiment of the present invention;
The example schematic of the center line of the association touch area on the direction of scanning b that Figure 13 provides for the embodiment of the present invention;
The example schematic of the center line of the association touch area on the direction of scanning c that Figure 14 provides for the embodiment of the present invention;
The example schematic of the center line of the 3rd touch area on the direction of scanning d that Figure 15 provides for the embodiment of the present invention;
The example schematic of the center line of the 3rd touch area on the direction of scanning e that Figure 16 provides for the embodiment of the present invention;
The example schematic of the center line of the first touch area that Figure 17 provides for the embodiment of the present invention and the center line of the second touch area;
The intersection point example schematic of a kind of each center line that Figure 18 provides for the embodiment of the present invention;
The close-up schematic view of region 1 part in Figure 18 that Figure 19 provides for the embodiment of the present invention;
The close-up schematic view of region 4 part in Figure 18 that Figure 20 provides for the embodiment of the present invention;
The structure composition schematic diagram of a kind of touch-screen multi-point positioning device that Figure 21 provides for the embodiment of the present invention;
The structure composition schematic diagram of the another kind of touch-screen multi-point positioning device that Figure 22 provides for the embodiment of the present invention;
The structure composition schematic diagram of a kind of touch-screen equipment that Figure 23 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention provides a kind of touch-screen multipoint positioning method, can be applied to touch-screen equipment, and the touch-screen of touch-screen equipment comprises first direction limit and second direction limit, and as shown in Figure 1, this touch-screen multipoint positioning method comprises:
S101, touch-screen multi-point positioning device, within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area.
Wherein, the first touch area is the touch area that the light path that the first direction of scanning is blocked continuously is formed, and the second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed.
First direction limit comprises at least one direction of scanning, a direction of scanning on first direction limit is made up of one group of parallel light path, and the slope of the parallel light path in composition different scanning direction is different; Second direction limit comprises at least one direction of scanning, a direction of scanning on second direction limit is made up of one group of parallel light path, and the slope of the parallel light path in composition different scanning direction is different.
First direction of scanning is the arbitrary direction of scanning on first direction limit or second direction limit; Second direction of scanning is the arbitrary direction of scanning on first direction limit or second direction limit except the first direction of scanning.
It should be noted that, in the embodiment of the present invention only with the first direction of scanning for the direction of scanning of on first direction limit, second direction of scanning is a direction of scanning on second direction limit is example, the method of the embodiment of the present invention is described, first direction of scanning and the second direction of scanning also can be respectively the different direction of scanning of on first direction limit two, or the first direction of scanning and the second direction of scanning also can be respectively the different direction of scanning of on second direction limit two; Certainly, the first direction of scanning can also be a direction of scanning on second direction limit, and the second direction of scanning is a direction of scanning on first direction limit.The embodiment of the present invention is not restricted this.
First direction limit in the embodiment of the present invention can be the long limit of the touch-screen of touch-screen equipment, and second direction limit can be the minor face of the touch-screen of touch-screen equipment; Or first direction limit can be the minor face of the touch-screen of touch-screen equipment, second direction limit can be the long limit of the touch-screen of touch-screen equipment.
S102, touch-screen multi-point positioning device obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area.
Wherein, the touch area on different scanning direction is intersected, then there will be the overlapping region of touch area; Touch-screen multi-point positioning device can obtain the overlapping region of the first touch area and the second touch area, obtains at least one candidate's determinating area.Such as, when existence two the first touch areas and two the second touch areas, these two first touch areas and two the second touch areas are intersected, then can obtain four overlapping regions, namely obtain four candidate's determinating areas.
S103, touch-screen multi-point positioning device determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is blocked by candidate's determinating area, then determine that candidate's determinating area is effective determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is not blocked by candidate's determinating area, then determine that candidate's determinating area is invalid determinating area.
Wherein, the 3rd direction of scanning is the arbitrary direction of scanning except the first direction of scanning and the second direction of scanning.
S104, touch-screen multi-point positioning device are located and are obtained true touch point from effective determinating area.
The touch-screen multipoint positioning method that the embodiment of the present invention provides, within a scan period, carries out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area; Determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is blocked by candidate's determinating area, then determine that candidate's determinating area is effective determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is not blocked by candidate's determinating area, then determine that candidate's determinating area is invalid determinating area; From effective determinating area, location obtains true touch point.
Compared with prior art, by this programme, invalid determinating area and effective determinating area can be determined from candidate's determinating area, owing to comprising all true touch points in effective determinating area, and in invalid determinating area, only comprise terrible point; Therefore calculate true touch point according to effective determinating area, and can not invalid determinating area be calculated, therefore can reduce invalid operand in multiple touch points position fixing process, and then the response time of touch-screen can be reduced, improve the speed of response.
Another embodiment of the present invention provides a kind of touch-screen multipoint positioning method, can be applied to touch-screen equipment, and the touch-screen of touch-screen equipment comprises first direction limit and second direction limit, and as shown in Figure 2, this touch-screen multipoint positioning method comprises:
S201, touch-screen multi-point positioning device, within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area.
Wherein, the first touch area is the touch area that the light path that the first direction of scanning is blocked continuously is formed, and the second touch area is the touch area that the light path that the second direction of scanning is blocked continuously is formed.
Exemplary, as shown in Figure 3 or Figure 4, touch-screen comprises first direction limit and second direction limit (first direction limit is the long limit of touch-screen, and second direction limit is the minor face of touch-screen).Suppose that the first direction of scanning is direction of scanning a as shown in Figure 3 (on first direction limit with the direction of scanning of first direction limit angle in 90 °); Second direction of scanning is direction of scanning A (direction of scanning becoming 80 ° of angles with second direction limit on second direction limit) as shown in Figure 4.
Wherein, the touch area of a direction of scanning is when touch-screen exists touch point, the region that the continuous parallel light path that touched point is blocked forms.
Exemplary, touch-screen multi-point positioning device can carry out the scanning of the direction of scanning a on first direction limit within a scan period, and determines the touch area of direction of scanning a.Namely scan along direction of scanning a (parallel light path vertical with first direction limit), to determine the touch area (region that the continuous parallel light path that in the parallel light path vertical with first direction limit, touched point is blocked forms) of the direction of scanning a on first direction limit.
Suppose to there are two touch points in touch-screen, as shown in Figure 3, now touch-screen multi-point positioning device carries out the scanning of the direction of scanning a on first direction limit, can determine that six parallel light path touched point in a of direction of scanning are blocked, and have two groups of three parallel light paths to be continuous print parallel light path in these six parallel light paths respectively, therefore touch-screen multi-point positioning device can determine that the direction of scanning a on first direction limit comprises two the first touch areas.As shown in Figure 2, shadow region is for representing the first touch area.
Suppose to there are two touch points in touch-screen, as shown in Figure 4, now touch-screen multi-point positioning device carries out the scanning of the direction of scanning A on second direction limit, can determine that six parallel light path touched point in the A of direction of scanning are blocked, and have two groups of three parallel light paths to be continuous print parallel light path in these six parallel light paths respectively, therefore touch-screen multi-point positioning device can determine that the direction of scanning A on second direction limit comprises two the second touch areas.As shown in Figure 3, shadow region is for representing the second touch area.
S202, touch-screen multi-point positioning device obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area.
Exemplary, based on above-mentioned example, as shown in Figure 5,4 overlapping regions of two the first touch areas on a of direction of scanning and two the second touch areas on the A of direction of scanning are candidate's determinating area (region (comprising region 1, region 2, region 3 and region 4) that namely as shown in Figure 6, black thick line surrounds is candidate's determinating area).
S203, touch-screen multi-point positioning device determine whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area.
Wherein, the 3rd direction of scanning is the arbitrary direction of scanning except the first direction of scanning and the second direction of scanning.In the embodiment of the present invention, the first direction of scanning is designated as direction of scanning a, the second direction of scanning is designated as direction of scanning A, by the 3rd direction of scanning, the arbitrary direction of scanning namely except the first direction of scanning and the second direction of scanning, is designated as direction of scanning b.
In a kind of application scenarios of the embodiment of the present invention, touch-screen multi-point positioning device can scan one by one to the light path on the 3rd direction of scanning, to determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of described candidate's determinating area.
Preferably, in the another kind of application scenarios of the embodiment of the present invention, in order to reduce touch point positioning flow, reduce the response time of touch-screen, to improve the speed of response, touch-screen multi-point positioning device can only scan the light path (the part light path on the 3rd direction of scanning) through candidate's determinating area on the 3rd direction of scanning, and judges whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area.As shown in Figure 7, S203 specifically can comprise S203a-S203b:
S203a, touch-screen multi-point positioning device, according to the position of candidate's determinating area on the touch-screen of touch-screen equipment, instead release the light path through candidate's determinating area on the 3rd direction of scanning.
Wherein, touch-screen multi-point positioning device can calculate the coordinate position of candidate's determinating area on the touch-screen of touch-screen equipment, then determines the light path through candidate's determinating area on the 3rd direction of scanning according to the coordinate of the marginal point of candidate's determinating area.Thick dashed line is as shown in Figure 8 for representing the light path through candidate's determinating area on the 3rd direction of scanning (direction of scanning b).
S203b, touch-screen multi-point positioning device judge whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area.
Touch-screen multi-point positioning device only can scan the light path (light path represented by thick dashed line as shown in Figure 8) through candidate's determinating area on the 3rd direction of scanning, judges whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area.
If S204 the 3rd is not blocked by candidate's determinating area through the light path of candidate's determinating area by direction of scanning, touch-screen multi-point positioning device then determines that candidate's determinating area is invalid determinating area.
Exemplary, suppose that the light path in region 2 (candidate's determinating area) in Fig. 6 on the 3rd direction of scanning (direction of scanning b) is not blocked by region 2 (candidate's determinating area), touch-screen multi-point positioning device then determines that region 2 (candidate's determinating area) is invalid determinating area.
On 3rd direction of scanning (direction of scanning b), in Fig. 6, the light path in region 3 (candidate's determinating area) is not blocked by region 3 (candidate's determinating area), and touch-screen multi-point positioning device then determines that region 3 (candidate's determinating area) is invalid determinating area.
If S205 the 3rd is blocked by candidate's determinating area through the light path of candidate's determinating area by direction of scanning, touch-screen multi-point positioning device then determines that candidate's determinating area is effective determinating area.
As shown in Figure 8, direction of scanning b is blocked by region 1 (candidate's determinating area) and region 4 through the light path (thick dashed line as shown in Figure 8) in region 1 (candidate's determinating area) and region 4 (candidate's determinating area), and touch-screen multi-point positioning device then determines that region 1 and region 4 are effective determinating area.
It is emphasized that and be deployed with parallel light path due to intensive on each direction of scanning, therefore, as long as the touch-screen of touch apparatus exists touch point, at least one light path on each direction of scanning will be blocked in this touch point; It can thus be appreciated that, when touch-screen multi-point positioning device scans a direction of scanning b, determine that arbitrary light path on the b of this direction of scanning is all after candidate's determinating area, then directly can judge that this candidate's determinating area is as invalid determinating area (region 2 as shown in Figure 7), do not need the direction of scanning scanning other again, the speed of location, touch point can be improved, improve location efficiency.
S206, touch-screen multi-point positioning device the 3rd direction of scanning will be designated as continuously the association touch area of effective determinating area by the touch area that the light path that effective determinating area blocks is formed.
Wherein, touch-screen multi-point positioning device after determining that candidate's determinating area is effective determinating area, the 3rd direction of scanning can will be designated as continuously the association touch area of this effective determinating area by the touch area that the light path that effective determinating area blocks is formed.
It should be noted that, an effective determinating area (candidate's determinating area) can have at least one association touch area.
It is emphasized that in an effective determinating area and can comprise a touch point, in an effective determinating area, also can comprise at least two touch points; When at least two touch points also can be comprised in an effective determinating area, then need at least two touch points in this effective determinating area to make a distinction, these at least two touch points are accurately located, and remove the terrible point in these at least two touch points; When comprising at least one touch point in an effective determinating area, touch-screen multi-point positioning device then needs to orient true touch point from this effective determinating area (candidate's determinating area).Therefore, the touch area that touch-screen multi-point positioning device to need on record the 3rd direction of scanning the light path of being blocked by effective determinating area continuously to form, be designated as the association touch area of this candidate's determinating area, so that follow-up can according to the association touch area of this effective determinating area and effective determinating area, location obtains true touch point.
Exemplary, suppose that region 1 as shown in Figure 6 and region 4 are effective determinating area, and on the b of direction of scanning, the light path represented by thick dashed line is as shown in Figure 8 blocked by region 1 and region 4; As shown in Figure 9, the touch area (touch area shown in dash area 1) that the light path that direction of scanning b is blocked by region 1 is continuously formed is then the association touch area in this region 1, and direction of scanning b is then the association touch area in this region 4 by the touch area (touch area shown in dash area 2) that the light path that region 4 is blocked is formed continuously.3rd direction of scanning will be designated as continuously the association touch area of this effective determinating area by the touch area that the light path that effective determinating area blocks is formed.
As shown in Figure 10, continuous 2 light paths on the c of direction of scanning are blocked by region 1, then the touch area of 2 light path formations of being blocked by effective determinating area continuous on the c of direction of scanning can be designated as the association touch area in this region 1.As shown in figure 11, continuous 2 light paths on the d of direction of scanning are blocked by region 1, then the touch area of 2 light path formations of being blocked by effective determinating area continuous on the d of direction of scanning can be designated as the association touch area in this region 1.As shown in figure 12, continuous 2 light paths on the e of direction of scanning are blocked by region 1, then the touch area of 2 light path formations of being blocked by effective determinating area continuous on the e of direction of scanning can be designated as the association touch area in this region 1.Based on this, then region 1 has four to associate touch area, is respectively: direction of scanning b, direction of scanning c, direction of scanning d and direction of scanning e.
Same, as shown in figs. 10-12, can draw: region 4 has four to associate touch area, is respectively: direction of scanning b, direction of scanning c, direction of scanning d and direction of scanning e.
S207, touch-screen multi-point positioning device are according to the association touch area of effective determinating area and effective determinating area, and location obtains true touch point.
Concrete, S207 can comprise S207a-S207b:
S207a, touch-screen multi-point positioning device determine the center line of the center line of the association touch area of effective determinating area, the center line of the first touch area and the second touch area.
Wherein, the termination border that the first sidelight road associating parallel light path continuously in touch area is the beginning boundary of association touch area, the second sidelight road associating parallel light path continuously in touch area is association touch area; The center line of association touch area is parallel with the beginning boundary associating touch area, the center line of association touch area is parallel with termination border associate touch area, and the center line of the association touch area center line that equals association touch area to the vertical range of beginning boundary associating touch area is to the vertical range on termination border associating touch area.
It should be noted that, the defining method of the center line of the first touch area and the center line of the second touch area is similar with the above-mentioned defining method associating the center line of touch area, and the embodiment of the present invention repeats no more here.
Exemplary, as shown in figure 13, thick black line 1 is the center line of the association touch area in region 1 in Fig. 9, and thick black line 2 is the center line of the association touch area in region 4 in Fig. 9.
As shown in figure 14, thick black line 3 is the center line of the association touch area in region 1 in Figure 10, and thick black line 4 is the center line of the association touch area in region 4 in Figure 10.
As shown in figure 15, thick black line 5 is the center line of the association touch area in region 1 in Figure 11, and thick black line 6 is the center line of the association touch area in region 4 in Figure 11.
As shown in figure 16, thick black line 7 is the center line of the association touch area in region 1 in Figure 12, and thick black line 8 is the center line of the association touch area in region 4 in Figure 12.
As shown in figure 17, thick black line 9 and thick black line 11 are respectively the center line of two the first touch areas, and thick black line 10 and thick black line 12 are respectively the center line of two the second touch areas.
S207b, touch-screen multi-point positioning device obtain the intersection point of center line in effective determinating area of the association center line of touch area, the center line of the first touch area and the second touch area, and obtain true touch point from intersection point.
As shown in figure 18, it illustrates the intersection point of center line in effective determinating area for associating the center line of touch area, the center line of the first touch area and the second touch area in Figure 13-Figure 17.
Wherein, as shown in figure 18, the center line of the association center line of touch area, the center line of the first touch area and the second touch area intersects, can obtain as shown in figure 19 by 10 intersection points fallen in region 1 and as shown in figure 20 by 7 intersection points fallen in region 4.Wherein, Figure 19 is the close-up schematic view of region 1 part in Figure 18, and Figure 20 is the close-up schematic view of region 4 part in Figure 18.
Wherein, touch-screen multi-point positioning device is after the intersection point of center line in effective determinating area getting the association center line of touch area, the center line of the first touch area and the second touch area, then can remove terrible point from the intersection point got, orient true touch point.
It should be noted that, in the embodiment of the present invention, touch-screen multi-point positioning device removes terrible point from the intersection point got, the method of location true touch point can remove terrible point with reference to prior art, the concrete grammar of location true touch point, such as according to the superposition of touch area, or utilize the intersection point of center line and predetermined threshold value to carry out ghost etc., the embodiment of the present invention repeats no more here.As long as only carry out the acquisition of true contact in effective determinating area, and do not consider invalid determinating area, the treatment effeciency of data all can be promoted.
Wherein, because effective determinating area (i.e. candidate's determinating area) obtains according to the common factor of the first touch area and the second touch area, and an effective determinating area may have one to associate touch area incessantly; Therefore touch-screen multi-point positioning device is according to the association touch area of effective determinating area and effective determinating area, the method that location obtains true touch point (i.e. S207) includes but not limited to the method shown in S207a-S207b, touch-screen multi-point positioning device can also only according to the association touch area of effective determinating area, and from effective determinating area, location obtains true touch point.Concrete, touch-screen multi-point positioning device can obtain the intersection point of the center line of each association touch area, and obtains true touch point from intersection point.
The touch-screen multipoint positioning method that the embodiment of the present invention provides, within a scan period, carries out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area; Determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is blocked by candidate's determinating area, then determine that candidate's determinating area is effective determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is not blocked by candidate's determinating area, then determine that candidate's determinating area is invalid determinating area; From effective determinating area, location obtains true touch point.
Compared with prior art, by this programme, invalid determinating area and effective determinating area can be determined from candidate's determinating area, owing to comprising all true touch points in effective determinating area, and in invalid determinating area, only comprise terrible point; Therefore calculate true touch point according to effective determinating area, and can not invalid determinating area be calculated, therefore can reduce invalid operand in multiple touch points position fixing process, and then the response time of touch-screen can be reduced, improve the speed of response.
Another embodiment of the present invention provides a kind of touch-screen multi-point positioning device, and as shown in figure 21, this touch-screen multi-point positioning device, comprising: the first acquiring unit 31, second acquisition unit 32, determining unit 33 and positioning unit 34.
First acquiring unit 31, within a scan period, carries out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed.
Second acquisition unit 32, for obtaining described described first touch area of the first acquiring unit 31 acquisition and the overlapping region of described second touch area, obtains at least one candidate's determinating area.
Determining unit 33, for determining whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area of described second acquisition unit 32 acquisition; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area.
Positioning unit 34, obtains true touch point for location in described effective determinating area of determining from described determining unit 33.
Further, described determining unit 33, specifically for:
According to the position of described candidate's determinating area on the touch-screen of described touch-screen equipment, the anti-light path released through described candidate's determinating area on described 3rd direction of scanning;
Judge whether described 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area.
Further, as shown in figure 22, this touch-screen multi-point positioning device, can also comprise: incidence relation record cell 35.
Incidence relation record cell 35, after determining that described candidate's determinating area is described effective determinating area in described determining unit 33, described 3rd direction of scanning will be designated as continuously the association touch area of described effective determinating area by the touch area that the light path that described effective determinating area blocks is formed.
Described positioning unit 34, specifically for:
According to the association touch area of described effective determinating area and described effective determinating area, location obtains described true touch point.
Further, described positioning unit 34, specifically for:
Determine the center line of the association touch area of described effective determinating area, the center line of described first touch area and the center line of the second touch area;
Obtain the center line of described association touch area, the center line of described first touch area and the intersection point of the center line of the second touch area in described effective determinating area, and obtain described true touch point from described intersection point.
It should be noted that, in the touch-screen multi-point positioning device that the embodiment of the present invention provides, the specific descriptions of part functional module can corresponding content in reference method embodiment, and the present embodiment is no longer described in detail here.
Another embodiment of the present invention also provides a kind of touch-screen equipment, and as shown in figure 23, this touch-screen equipment, comprising: storer 41 and processor 42.
Storer 41, for storing batch processing code.
Processor 42, for the batch processing code stored according to described storer 41, performs and operates as follows:
Within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed;
Obtain the overlapping region of described first touch area and described second touch area, obtain at least one candidate's determinating area;
Determine whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area;
From described effective determinating area, location obtains true touch point.
It should be noted that, in the touch-screen equipment that the embodiment of the present invention provides, the specific descriptions of other functions of processor can with reference to the corresponding content in said method or device embodiment, and the present embodiment is no longer described in detail here.
The touch-screen multi-point positioning device that the embodiment of the present invention provides and touch-screen equipment, the touch-screen multipoint positioning method that the embodiment of the present invention provides, within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Obtain the overlapping region of the first touch area and the second touch area, obtain at least one candidate's determinating area; Determine whether the 3rd direction of scanning is blocked by candidate's determinating area through the light path of candidate's determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is blocked by candidate's determinating area, then determine that candidate's determinating area is effective determinating area; If the light path through candidate's determinating area on the 3rd direction of scanning is not blocked by candidate's determinating area, then determine that candidate's determinating area is invalid determinating area; From effective determinating area, location obtains true touch point.
Compared with prior art, by this programme, invalid determinating area and effective determinating area can be determined from candidate's determinating area, owing to comprising all true touch points in effective determinating area, and in invalid determinating area, only comprise terrible point; Therefore calculate true touch point according to effective determinating area, and can not invalid determinating area be calculated, therefore can reduce invalid operand in multiple touch points position fixing process, and then the response time of touch-screen can be reduced, improve the speed of response.
Through the above description of the embodiments, those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, the inner structure by device is divided into different functional modules, to complete all or part of function described above.The system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described module or unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. a touch-screen multipoint positioning method, is characterized in that, is applied to touch-screen equipment, and described method comprises:
Within a scan period, carry out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed;
Obtain the overlapping region of described first touch area and described second touch area, obtain at least one candidate's determinating area;
Determine whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area;
From described effective determinating area, location obtains true touch point.
2. method according to claim 1, is characterized in that, describedly determines whether the 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area, comprising:
According to the position of described candidate's determinating area on the touch-screen of described touch-screen equipment, the anti-light path released through described candidate's determinating area on described 3rd direction of scanning;
Judge whether described 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area.
3. method according to claim 1 and 2, it is characterized in that, if the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then, after determining that described candidate's determinating area is effective determinating area, described method also comprises:
Described 3rd direction of scanning will be designated as continuously the association touch area of described effective determinating area by the touch area that the light path that described effective determinating area blocks is formed;
Described location from described effective determinating area obtains true touch point, comprising:
According to the association touch area of described effective determinating area and described effective determinating area, location obtains described true touch point.
4. method according to claim 3, is characterized in that, the described association touch area according to described effective determinating area and described effective determinating area, and location obtains described true touch point, comprising:
Determine the center line of the association touch area of described effective determinating area, the center line of described first touch area and the center line of the second touch area;
Obtain the center line of described association touch area, the center line of described first touch area and the intersection point of the center line of the second touch area in described effective determinating area, and obtain described true touch point from described intersection point.
5. a touch-screen multi-point positioning device, is characterized in that, comprising:
First acquiring unit, within a scan period, carries out the scanning of the first direction of scanning and the second direction of scanning, to obtain the first touch area and the second touch area; Described first touch area is the touch area that the light path that described first direction of scanning is blocked continuously is formed, and described second touch area is the touch area that the light path that described second direction of scanning is blocked continuously is formed;
Second acquisition unit, for obtaining described described first touch area of the first acquiring unit acquisition and the overlapping region of described second touch area, obtains at least one candidate's determinating area;
Determining unit, for determining whether the light path of described candidate's determinating area that the 3rd direction of scanning obtains through described second acquisition unit is blocked by described candidate's determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is blocked by described candidate's determinating area, then determine that described candidate's determinating area is effective determinating area; If the light path through described candidate's determinating area on described 3rd direction of scanning is not blocked by described candidate's determinating area, then determine that described candidate's determinating area is invalid determinating area;
Positioning unit, obtains true touch point for location in described effective determinating area of determining from described determining unit.
6. device according to claim 5, is characterized in that, described determining unit, specifically for:
According to the position of described candidate's determinating area on the touch-screen of described touch-screen equipment, the anti-light path released through described candidate's determinating area on described 3rd direction of scanning;
Judge whether described 3rd direction of scanning is blocked by described candidate's determinating area through the light path of described candidate's determinating area.
7. the device according to claim 5 or 6, is characterized in that, also comprises:
Incidence relation record cell, after determining that in described determining unit described candidate's determinating area is described effective determinating area, described 3rd direction of scanning will be designated as continuously the association touch area of described effective determinating area by the touch area that the light path that described effective determinating area blocks is formed;
Described positioning unit, specifically for:
According to the association touch area of described effective determinating area and described effective determinating area, location obtains described true touch point.
8. device according to claim 7, is characterized in that, described positioning unit, specifically for:
Determine the center line of the association touch area of described effective determinating area, the center line of described first touch area and the center line of the second touch area;
Obtain the center line of described association touch area, the center line of described first touch area and the intersection point of the center line of the second touch area in described effective determinating area, and obtain described true touch point from described intersection point.
9. a touch-screen equipment, is characterized in that, comprising:
Storer, for storing batch processing code;
Processor, for the batch processing code stored according to described storer, enforcement of rights requires the touch-screen multipoint positioning method according to any one of 1-4.
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| CN113126827B (en) * | 2019-12-31 | 2022-09-09 | 青岛海信商用显示股份有限公司 | Touch identification method of touch display device and related equipment |
| CN111475056A (en) * | 2020-06-01 | 2020-07-31 | 青岛海信商用显示股份有限公司 | Touch identification method and device |
| CN114415864A (en) * | 2020-10-13 | 2022-04-29 | 青岛海信商用显示股份有限公司 | Touch area determination method and display device |
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| CN105045439B (en) | 2018-08-21 |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co., Ltd Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |