CN110502160A - The classification method and device of touch point, touch screen and display - Google Patents
The classification method and device of touch point, touch screen and display Download PDFInfo
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- CN110502160A CN110502160A CN201910765702.1A CN201910765702A CN110502160A CN 110502160 A CN110502160 A CN 110502160A CN 201910765702 A CN201910765702 A CN 201910765702A CN 110502160 A CN110502160 A CN 110502160A
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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Abstract
The embodiment of the present invention provides the classification method and device, touch screen and display of a kind of touch point, is related to touch control field, can extend touch screen and more apply.This method comprises: obtaining the touch area on touch screen under each scanning direction；Touch point is determined according to touch area；Obtain the characteristic parameter of touch point；The type of touch point is determined according to the characteristic parameter of touch point.The present invention is applied to touch screen.
Description
Technical field
The present invention relates to touch-control field more particularly to the classification methods and device of a kind of touch point, touch screen and display.
Background technique
Touch screen is the electronic system that can detecte the touch point position in display area, it simplifies man-machine friendship
Mutual mode is since infrared touch technology has strong environmental suitability, longer life expectancy, can recognize and touches the advantages such as points are more, currently
Touch screen mainly determines the position of touch point using infrared touch technology.
Traditional infrared touch-control algorithm only uploads the location information of touch point, and the feature of touch point is also wrapped other than position
Include the features such as size and area.There is no expand touch screen using these features of touch point well for existing touch-control algorithm
Using.Therefore, it is the possibility for expanding the more richer application of touch screen, needs a kind of to the side for touching vertex type and distinguishing
Method.
Summary of the invention
The embodiment of the present invention provides the classification method and device, touch screen and display of a kind of touch point, for determining
The type of touch point.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of classification method of touch point, comprising:
Obtain the touch area on touch screen under each scanning direction；Scanning direction is one group of sweeping with slope on touch screen
The direction of optical path is retouched, the scanning optical path of the scanning direction of the correspondence touch area in each touch area is blocked；
Touch point is determined according to touch area；
Obtain the characteristic parameter of touch point；The characteristic parameter of touch point includes: the shading of the number of plies of touch point, touch point
The shape of number, the area of touch point and touch point；The number of plies of touch point is the number of touch area belonging to touch point, touch point
Shading number be that scanning optical path quantity belonging to touch point comprising scanning direction where touch area in touch area is most
The number for the scanning optical path for including in touch area；
The type of touch point is determined according to the characteristic parameter of touch point.
The present invention only uploads a kind of this information of the position of touch point for existing touch screen technology, increases in the present invention
The feature of different touch points seek with type deterministic process, extend a possibility that touch screen is more applied.
Second aspect provides a kind of sorter of touch point, comprising: acquiring unit and determination unit；
Acquiring unit, for obtaining the touch area on touch screen under each scanning direction；Scanning direction is on touch screen
The direction of one group of scanning optical path with slope, the scanning optical path of the scanning direction of the correspondence touch area in each touch area
It is blocked；
Determination unit, the touch area for being obtained according to acquiring unit, determines touch point；
Acquiring unit is also used to obtain the characteristic parameter of touch point；The characteristic parameter of touch point includes: the layer of touch point
Number, the shading number of touch point, the area of touch point and the shape of touch point；The number of plies of touch point is Petting Area belonging to touch point
The number in domain, the shading number of touch point are the scanning comprising scanning direction where touch area in touch area belonging to touch point
The number for the scanning optical path for including in the most touch area of optical path quantity；
The characteristic parameter of determination unit, the touch point for being also used to be obtained according to acquiring unit determines the type of touch point.
The third aspect provides a kind of touch screen, the sorter of the touch point including such as second aspect.
Fourth aspect provides a kind of display, the touch screen including such as third aspect.
5th aspect, provides a kind of sorter of touch point, comprising: processor, memory and communication interface；Wherein,
Communication interface is for the sorter and other equipment of touch point or network communication；Memory is for storing one or more journeys
Sequence, one or more programs include computer executed instructions, and when the operation of the sorter of touch point, processor executes memory
The computer executed instructions of storage, so that the sorter of touch point executes the classification method of the touch point such as first aspect.
6th aspect provides a kind of computer readable storage medium for storing one or more programs, one or more journeys
Sequence includes instruction, the classification method for the touch point that instruction executes computer such as first aspect.
7th aspect, provides a kind of computer program product comprising instruction, when instruction is run on computers, makes
Obtain the classification method for the touch point that computer is executed such as first aspect.
The classification method and device of touch point provided in an embodiment of the present invention, touch screen and display, this method comprises: obtaining
Take the touch area on touch screen under each scanning direction；Touch point is determined according to touch area；Obtain the feature ginseng of touch point
Number；The type of touch point is determined according to the characteristic parameter of touch point.Wherein the characteristic parameter of touch point include touch point the number of plies,
Shading number, the area of touch point and the shape of touch point of touch point.Technical solution provided in an embodiment of the present invention, because true
The characteristic parameter of each touch point is obtained after determining touch point, so finally can determine to touch according to the characteristic parameter of touch point
Touch type a little；Further, the different type according to touch point may be implemented, match different operations, touch can be extended
Shield the possibility of more richer applications.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is infrared touch panel schematic diagram；
Fig. 2 a is touch area schematic diagram provided in an embodiment of the present invention；
Fig. 2 b is another touch area schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of classification method schematic diagram of touch point provided in an embodiment of the present invention；
Fig. 4 is the classification method schematic diagram of another touch point provided in an embodiment of the present invention；
Fig. 5 is a kind of application scenarios of touch screen provided in an embodiment of the present invention；
Fig. 6 is another application scenarios of touch screen provided in an embodiment of the present invention；
Fig. 7 is another application scenarios of touch screen provided in an embodiment of the present invention；
Fig. 8 is a kind of touch vertex type decision flow chart provided in an embodiment of the present invention；
Fig. 9 is a kind of sorter schematic diagram of touch point provided in an embodiment of the present invention；
Figure 10 is the sorter schematic diagram of another touch point provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the embodiment of the present invention, " illustrative " or " such as " etc. words make example, example for indicating
Card or explanation.Be described as in the embodiment of the present invention " illustrative " or " such as " any embodiment or design scheme do not answer
It is interpreted than other embodiments or design scheme more preferably or more advantage.Specifically, " illustrative " or " example are used
Such as " word is intended to that related notion is presented in specific ways.
It should also be noted that, in the embodiment of the present invention, " (English: of) ", " corresponding (English:
Corresponding, relevant) " it sometimes can be mixed with " corresponding (English: corresponding) ", it should be pointed out that
It is that, when not emphasizing its difference, meaning to be expressed is consistent.
For the ease of clearly describing the technical solution of the embodiment of the present invention, in an embodiment of the present invention, use " the
One ", the printed words such as " second " distinguish function and the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not to be defined to quantity and execution order.
The principle of infrared touch panel is as shown in Figure 1, there are two infrared emissions while with two infrared receivers, infrared emission side
It is oppositely arranged with infrared receiver side.Infrared transmitter is arranged on infrared emission side, infrared receiver is arranged with infrared receiver on side
Device.As shown in Figure 1, an infrared transmitter can emit infrared ray to multiple directions.
In the prior art, it after determining touch point, only determines the location information of touch point, limits touch screen and more apply
Possibility.In view of the information that touch point is contained does not only have location information, this is a kind of, and size and shape can also indicate one
Fixed information.For example, using stylus on the touchscreen touch-control when, what is obtained is the effigurate touch of lesser tool
Point；Using finger on the touchscreen touch-control when, what is obtained is one bigger than stylus, while also having effigurate touch
Point；And mistaken touch occur when, such as sleeve or arm pressure on the touchscreen when, what is obtained is a biggish touch point.
Under these above-mentioned touch-control scenes, the type of touch point can be judged by information such as the size shapes of touch point.
Technical solution provided by the invention can judge to touch when detecting touch point according to the characteristic parameter of touch point
Touch type a little.The type information of touch point is uploaded to processing system with location information, and wherein processing system can be touched to call
Touch the unit of the responsible information processings such as the application program either master control system of touch screen of screen.In general, in the prior art, user
When wanting to draw felt pen lines, needs first to select to touch pen mode, then start with felt pen graphing again.The present invention
Since the type of touch point can be obtained when judging touch point position, user wants to draw the figure for touching pen type
When case, directly using felt pen touch screen draw, touch screen can according to felt pen draw lines during it is each
The type of touch point judges current drawing mode to touch pen mode, thus user does not have to actively remove selection felt pen mould again
Formula.
The technical term in the present invention is explained below:
Scanning optical path: the infrared ray of the infrared transmitter transmitting on infrared emission side.
Scanning direction: scanning direction is the direction of one group of scanning optical path with slope on touch screen.Infrared transmitter can be with
Emit the infrared ray of different angle, infrared transmitter specific for one can correspond to the scanning light of a plurality of different angle
Road, each angle are known as a scanning direction.
Touch area: a specific scanning direction corresponds to one group of parallel sweep optical path, when there is touch to occur, touching
It touches a meeting and shelters from continuous several in these parallel sweep optical paths, under same scanning direction, the scanning that is continuously blocked
Region between optical path is touch area.The scanning optical path of the scanning direction of correspondence touch area in each touch area is equal
It is blocked.As shown in Figure 2 a, a, b, c and d are 4 scanning optical paths of the same scanning direction that touched point is blocked, then a scans light
Shadow region between road and d scanning optical path is touch area.For convenience of statement, touch area is indicated in subsequent diagram
When, the outermost scanning optical path in touch area is only drawn, i.e., only draws a scanning optical path and d scanning optical path；
Another situation, when touch point is smaller, has only blocked a scanning optical path, then the scanning optical path that this is blocked
Scanning direction under, the region between two scanning optical paths adjacent with the scanning optical path that is blocked is determined as touch area, such as
Shown in Fig. 2 b, when touch point is smaller, only blocked b scanning optical path, then by the region between scanning optical path a and c, i.e. yin in Fig. 2 b
Shadow zone domain, is determined as touch area.
Aiming at the problem that prior art can not judge to touch vertex type, as shown in figure 3, the embodiment of the present invention provides a kind of touching
Classification method a little is touched, is executed by touch screen or its corresponding control unit (such as CPU, MCU etc.), in a kind of implementation
In, method provided by the embodiment of the present invention includes: S101-S106.
S101: the touch area on touch screen under each scanning direction is obtained.
S102: touch point is determined according to touch area.
Illustratively, in an embodiment of the present invention, as shown in figure 4, S102 is specific can include:
S1021: the most scanning direction in the touch area in addition to being determined as invalid touch area is determined as target side
To.
It should be noted that then optionally one of them is swept when there is the touch area of identical quantity on multiple scanning directions
Retouching direction is target direction.As shown in figure 5, shared tri- scanning directions A, B and C detect touch area, under A sweep direction
There are two touch areas a1 and a2, there are two touch areas b1 and b2 under B-scan direction, have c1 and c2 two under C-scan direction
Touch area.Each scanning direction there are two touch area, therefore can optionally one of scanning direction be determined as target side
To.
If it is determined that target direction on touch area and other scanning directions on touch area there is no intersecting area,
The touch area on the target direction determined then is determined as invalid touch area；Then it redefines target direction: will remove
It is determined as the most scanning direction in the touch area other than invalid touch area and is determined as target direction.
S1022: the intersecting area of the touch area on the touch area and other scanning directions on target direction is obtained.
Since scanning direction is different, there can be the case where touch area intersection.When the intersection of two touch areas,
It can confirm that the intersecting area is likely to be touch point, technical solution provided in an embodiment of the present invention is with the intersecting area of touch area
As the basis for determining touch point.
S1023: by each touch area on target direction, the most intersecting area in affiliated touch area is determined as touching
It touches a little.
Since the touch area on same scanning direction can not intersect, intersection is all different scanning direction
Touch area.Therefore, the touch area belonging to the intersecting area is more, illustrates to detect the corresponding scanning direction of the intersecting area
More, which more may be real touch point.Therefore, technical solution provided in an embodiment of the present invention is by target direction
On each touch area in intersecting area in the most intersecting area in affiliated touch area be determined as touch point.
Illustratively, as shown in fig. 6, determining that the scanning direction D is target direction, in the touch area d1, No. 2 intersecting areas
Affiliated touch area has 4, and touch area belonging to other intersecting areas is not above 4 in the touch area d1, therefore,
No. 2 intersecting areas are determined as touch point.In the touch area d2, touch area belonging to No. 3 intersecting areas has 3, d2 touching
It touches touch area belonging to other intersecting areas in region and is not above 3, therefore No. 3 intersecting areas are determined as touching
Point.
S1024: all touch areas belonging to touch point are determined as invalid touch area.
Illustratively, as shown in fig. 6, when determine No. 2, No. 3 intersecting areas be touch point after, by No. 2 intersecting area institutes
Touch area belonging to the touch area of category and No. 3 intersecting areas is determined as invalid touch area.It is remaining after step S105
Touch area schematic diagram it is as shown in Figure 7.
S1025: the most scanning direction in the touch area in addition to being determined as invalid touch area is determined as target side
To.
After executing S1024, remaining touch area is determined.With method identical with S1021, target direction is determined.
As shown in fig. 7, detecting touch area, the touch area of each scanning direction there are two scanning direction A and C altogether
Number is 1, and therefore, optional wherein any one scanning direction is as target direction.
Determine A sweep direction be target direction, only one intersecting area of two touch areas, i.e., No. 5 intersecting areas in figure,
There is no need to compare the number of touch area belonging to intersecting area again, No. 6 intersecting areas are directly determined as touch point.
By above-mentioned S1022-S1025, by repeatedly recycling, until without intersecting area, that is, can determine that whole
Touch point.
S103: the characteristic parameter of touch point is obtained.
Wherein, the characteristic parameter of touch point include: the number of plies of touch point, the shading number of touch point, touch point area and
The shape of touch point；The number of plies of touch point is the number of touch area belonging to touch point, and the shading number of touch point is touch point
Scanning optical path quantity comprising scanning direction where the touch area in affiliated touch area includes in most touch areas
Scanning optical path number；
As shown in figure 5, a1, b1 and c1 tri- touch areas for belonging to different scanning direction have been blocked at touch point 1, because
The number of plies of this touch point 1 is 3.The size of touch area be contained by it its where the number of scanning optical path of scanning direction determine
Fixed, as shown in Figure 5, the touch area b1 includes 4 scanning optical paths, and the touch area a1 includes 3 scanning optical paths, the touch area c1 packet
Containing 4 scanning optical paths.Therefore, b1 and c1 simultaneously be maximum touch area in touch area belonging to touch point 1, then b1 or
Scanning optical path number in c1 is the shading number of touch point 1, i.e., the shading number of touch point 1 is 4.
Since touch point is the intersecting area of touch area, it is only possible to be convex polygon, therefore, touch point
Area and shape can be acquired by each apex coordinate of touch point by mathematical operation.Wherein, reference axis can be by touch screen
The adjacent side of any two is constituted.
S104: the type of touch point is determined according to the characteristic parameter of touch point.
Illustratively, determining method provided in an embodiment of the present invention is as shown in Figure 8:
Judge whether the characteristic parameter of touch point meets the first preset condition；First preset condition are as follows: the number of plies of touch point
Less than first threshold, the shading number of touch point is less than second threshold, and the area of touch point is less than third threshold value；
If touch point characteristic parameter meet the first preset condition, judge touch point shape whether with the first default shape
Shape is similar；
If the characteristic parameter of touch point meets the first preset condition, and the shape of touch point is similar to the first preset shape,
The type for then determining touch point is first kind touch point；Or it can also first judge whether the shape of touch point is preset with first
Shape is similar, then judges whether the characteristic parameter of touch point meets the first preset condition.
Judge whether the characteristic parameter of touch point meets the second preset condition；Second preset condition are as follows: the number of plies of touch point
More than or equal to first threshold and less than the 4th threshold value, the shading number of touch point is more than or equal to second threshold and less than the 5th threshold value,
The area of touch point is more than or equal to third threshold value and less than the 6th threshold value；
If touch point characteristic parameter meet the second preset condition, judge touch point shape whether with the second default shape
Shape is similar；
If the characteristic parameter of touch point meets the second preset condition, and the shape of touch point is similar to the second preset shape,
The type for then determining touch point is Second Type touch point；Or it can also first judge whether the shape of touch point is preset with second
Shape is similar, then judges whether the characteristic parameter of touch point meets the second preset condition.
Judge whether the characteristic parameter of touch point meets third preset condition；Third preset condition are as follows: the number of plies of touch point
More than or equal to the 4th threshold value, the shading number of touch point is more than or equal to the 5th threshold value, and the area of touch point is more than or equal to the 6th threshold value；
If the characteristic parameter of touch point meets third preset condition, it is determined that the type for stating touch point is third type of touch
Point.
It, can also be with it should be noted that the judgement flow elements sequencing of above-mentioned three classes touch point, can carry out simultaneously
Any sequence, is not particularly limited herein.
If the characteristic parameter of touch point does not meet the Rule of judgment that above-mentioned three classes touch vertex type, not to the touch point
Type work judges.
Illustratively, the half of the generally desirable scanning direction number of first threshold, second threshold can value 2, third threshold value can
Take 9mm2, the generally desirable scanning direction number of the 4th threshold value, the general value 4 of the 5th threshold value, the 6th threshold value can use 100mm2.It needs
Bright, above-mentioned first threshold, second threshold, third threshold value, the 4th threshold value, the specific value of the 5th threshold value and the 6th threshold value are only
For example, in practice or other numerical value, it is not particularly limited herein.
Under the concrete scene defined in above-mentioned each threshold value, the number of plies, shading number and the area of first kind touch point are most
It is small minimum, so being most possibly thin pen type touch point, really thin pen type is then determined whether further according to its shape
Touch point, the shape that first shape (such as triangle) is most possible as thin pen type touch point in the embodiment of the present invention,
Therefore first kind touch point should be the touch point of thin pen type.It should be noted that the pen tip touch-control of felt pen generated
Touch point is also likely to be other shapes, and first shape is taken as the triangle embodiment of the present invention merely for convenience of description here
Technical solution.
The case where touch point when the number of plies, shading number and the area of Second Type touch point are more conform with finger touch, institute
Most possibly for finger blackboard eraser type of touch point, then to determine whether really finger blackboard eraser type touching further according to its shape
It touches a little, touches the second shape (such as round, to be more conform with the shape of finger tip) as finger blackboard eraser type in the embodiment of the present invention
A little most possible shape is touched, therefore, Second Type touch point should be the touch point of finger blackboard eraser type.It needs to illustrate
It is that the touch point that finger tip touch-control generates is also likely to be other shapes, the second shape is taken as round being to be by such as ellipse here
Facilitate the technical solution for illustrating the embodiment of the present invention.
The number of plies of third type of touch point, shading number and area are bigger, thus third class touch point be most likely to be by
Touch point caused by sleeve, palm, elbow or other objects, since such touch point is larger, it is usually the case that should
Class touch point is generated by accidentally touching；It accidentally touches due to being, so the shape of mistaken touch point and being not fixed, therefore is judging touch point
Without the concern for this characteristic parameter of its shape when whether belonging to third class touch point.
Illustratively, determine whether the shape of touch point is similar to the first preset shape, can realize by the following method:
The shape of touch point and the similarity of the first preset shape are calculated, if similarity is greater than preset threshold, judges to touch
The shape touched a little is similar to the first preset shape；
Determine whether the shape of touch point is similar to the second shape, can realize by the following method:
The shape of touch point and the similarity of the second preset shape are calculated, if similarity is greater than preset threshold, judges to touch
The shape touched a little is similar to the second preset shape.
Illustratively, the similarity between mean value hash algorithm two shapes of calculating can be used.The embodiment of the present invention provides
Technical solution the method for similarity between two shapes that calculates is not construed as limiting, as long as the similarity between shape can be calculated
.
S105, it executes and goes ghost point operation, and carry out track following to the touch point after ghost is put is deleted.
Specifically, in multiple point touching, such as in two touches, two touch points will generate two on the touchscreen
Abscissa point and two ordinate points, integrate, can obtain the location information of 4 kinds of touch points, but actually only touch
Two points, other two touch point are exactly terrible point.Therefore, it after determining touch point, also needs to remove terrible point therein.Wherein,
The method of removal ghost point can be it is in the prior art any one, for example, can count only through some touch point to be determined
Without the number by the scanning optical paths of other touch points to be determined, for each touch point to be determined, if only by should be to
It determines that touch point is greater than preset threshold without the number of the scanning optical path by other touch points to be determined, then judges that this is to be determined
Touch point is true touch point, otherwise, judges the touch point to be determined for terrible point.After deleting ghost point, it can avoid to touch point
Erroneous judgement, improve touch point judgement accuracy.
The track following of touch point be also possible to it is in the prior art any one, for example, then being obtained after obtaining touch point
The touch point of lower scan cycle, calculate all touch points of two neighboring scan period to the distance between, wherein touch point
To including a touch point in every scan cycle in the two neighboring scan period；By all touch points to carry out fully intermeshing,
At least two touch points are obtained to sequence, wherein touch point was equal to for the first scan period to the number of the touch point pair in sequence
Touch point number, the first scan period be the two neighboring scan period in the touch point number least scan period；It counts respectively
Calculate each touch point to touch points all in sequence to the distance between the sum of, by the smallest touch point of sum of the distance to sequence make
For matching double points sequence, wherein the line between two touch points of any touch point centering in matching double points sequence is one
Touch track.Touch track can reflect the situation of movement of touch point.
S106, the logical coordinates for determining touch point and with the type of touch point together upload process system.
According to the profile of touch point, the device coordinate of profile center of gravity is determined, wherein device coordinate is apart from screen upper left
The horizontal distance and vertical range at angle indicates.After getting the device coordinate of touch point, device coordinate is converted into logic and is sat
It marks and exports the logical coordinates.
Touch point type information can be distinguished by increasing mark in protocol headers.For not meeting above-mentioned touch vertex type
The coordinate information of touch point is only uploaded to the processing system on upper layer by the touch point of Rule of judgment, touch screen, touches vertex type mark
Know to empty.Wherein processing system is as previously mentioned, can be the master control system of the application program either touch screen of calling touch screen
The unit of the responsible information processings such as system.
The embodiment of the present invention provides a kind of classification method of touch point, comprising: obtains on touch screen under each scanning direction
Touch area；Touch point is determined according to touch area；Obtain the characteristic parameter of touch point；It is true according to the characteristic parameter of touch point
Determine the type of touch point.Wherein the characteristic parameter of touch point include the number of plies of touch point, the shading number of touch point, touch point face
Long-pending and touch point shape.Technical solution provided in an embodiment of the present invention, because obtaining each touch after determining touch point
The characteristic parameter of point, so can finally determine the type of touch point according to the characteristic parameter of touch point；It further, can be with
According to the different type of touch point, different operations is matched, the possibility of the more richer application of touch screen can be extended.
For the classification method of better implementation touch point provided by the above embodiment, the embodiment of the present invention also provides one kind
Display, including a kind of touch screen, the touch screen include a kind of sorter of touch point, the sorter of the touch point, energy
Enough implement the classification method of above-mentioned touch point.
Illustratively, referring to shown in Fig. 9, the sorter 90 of touch point provided in an embodiment of the present invention, comprising: obtain single
Member 91 and determination unit 92；
Acquiring unit 81, for obtaining the touch area on touch screen under each scanning direction；Scanning direction is touch screen
The direction of upper one group of scanning optical path with slope, the scanning light of the scanning direction of the correspondence touch area in each touch area
Road is blocked；
Determination unit 92, the touch area for being obtained according to acquiring unit 91, determines touch point；
Acquiring unit 91 is also used to obtain the characteristic parameter of touch point；Wherein, the characteristic parameter of touch point includes: to touch
The number of plies, shading number, the area of touch point and the shape of touch point of touch point of point；The number of plies of touch point is belonging to touch point
The number of touch area, the shading number of touch point are in touch area belonging to touch point comprising scanning direction where touch area
The most touch area of scanning optical path quantity in include scanning optical path number；
The characteristic parameter of determination unit 92, the touch point for being also used to be obtained according to acquiring unit 91 determines the class of touch point
Type.
Optionally, determination unit 92 is specifically used for:
It will acquire the most scanning direction in the touch area in addition to being confirmed as invalid touch area of the acquisition of unit 91
It is determined as target direction；
The touch area on the touch area and other scanning directions on target direction obtained according to acquiring unit 91
Intersecting area, by each touch area on the target direction, touch area that affiliated acquiring unit 91 obtains is most
Intersecting area is determined as touch point；
All touch areas belonging to touch point are determined as invalid touch area；
It will acquire the most scanning direction in the touch area in addition to being confirmed as invalid touch area of the acquisition of unit 91
It is determined as target direction.
Optionally, determination unit 92 is specifically used for:
Judge whether the characteristic parameter for the touch point that acquiring unit 91 obtains meets the first preset condition；Wherein, first is pre-
If condition are as follows: the number of plies of touch point is less than first threshold, and the shading number of touch point is less than second threshold, and the area of touch point is less than
Third threshold value；
If the characteristic parameter for the touch point that acquiring unit 91 obtains meets first preset condition, touch point is judged
Whether shape is similar to the first preset shape；
If the characteristic parameter for the touch point that acquiring unit 91 obtains meets first preset condition, and the shape of touch point
It is similar to the first preset shape, it is determined that the type of touch point is first kind touch point；Or it can also first judge touch point
Shape it is whether similar to the first preset shape, then judge whether the characteristic parameter for the touch point that acquiring unit 91 obtains meets the
One preset condition.
Judge whether the characteristic parameter for the touch point that acquiring unit 91 obtains meets the second preset condition；Wherein, second is pre-
If condition are as follows: the number of plies of touch point is more than or equal to the first threshold and less than the 4th threshold value, and the shading number of touch point is greater than etc.
In the second threshold and less than the 5th threshold value, the area of touch point is more than or equal to the third threshold value and less than the 6th threshold value；
If the characteristic parameter for the touch point that acquiring unit 91 obtains meets second preset condition, touch point is judged
Whether shape is similar to the second preset shape；
If the characteristic parameter for the touch point that acquiring unit 91 obtains meets the second preset condition, and the shape of touch point and the
Two preset shapes are similar, it is determined that the type of touch point is Second Type touch point；Or it can also first judge the shape of touch point
Whether shape is similar to the second preset shape, then judges whether the characteristic parameter for the touch point that acquiring unit 91 obtains meets second in advance
If condition.
Judge whether the characteristic parameter for the touch point that acquiring unit 91 obtains meets third preset condition；Wherein, third is pre-
If condition are as follows: the number of plies of touch point is more than or equal to the 4th threshold value, and the shading number of touch point is more than or equal to the 5th threshold value,
The area of touch point is more than or equal to the 6th threshold value；
If the characteristic parameter for the touch point that acquiring unit 91 obtains meets third preset condition, it is determined that the type of touch point
For third type of touch point.If the characteristic parameter for the touch point that acquiring unit 91 obtains does not meet above-mentioned three classes and touches vertex type
Rule of judgment does not judge the type work of the touch point then.
Optionally, determination unit 92 judge acquiring unit 91 obtain touch point shape whether with the first preset shape phase
Seemingly, it specifically includes:
The shape for the touch point that acquiring unit 91 obtains and the similarity of the first preset shape are calculated, if similarity is greater than in advance
If threshold value, then judge that the shape of touch point is similar to the first preset shape；
Determination unit 92 judges whether the shape for the touch point that acquiring unit 91 obtains is similar to the second shape, specific to wrap
It includes:
The shape for the touch point that acquiring unit 91 obtains and the similarity of the second preset shape are calculated, if similarity is greater than in advance
If threshold value, then judge that the shape of touch point is similar to the second preset shape.
Optionally, the sorter 90 of touch point further includes processing unit 93, and processing unit 93 goes ghost point behaviour for executing
Make, and carry out track following to the touch point after ghost is put is deleted.
Optionally, determination unit 92 is also used to determine the logical coordinates of touch point.
Optionally, the sorter 90 of touch point further includes transmission unit 94, and transmission unit 94 is used for determination unit 92
The logical coordinates of determining touch point and the type of touch point are uploaded to processing system.Wherein processing system can touch to call
The unit of the responsible information processings such as the application program of the screen either master control system of touch screen.
The sorter of touch point provided in an embodiment of the present invention, including acquiring unit and determination unit.Acquiring unit is used
Touch area under each scanning direction on acquisition touch screen；Determination unit, the Petting Area for being obtained according to acquiring unit
Domain determines touch point；Acquiring unit is also used to obtain the characteristic parameter of touch point；Determination unit is also used to according to acquiring unit
The characteristic parameter of the touch point of acquisition determines the type of touch point.Technical solution provided in an embodiment of the present invention, because in determination
Unit determines the characteristic parameter that each touch point is obtained behind touch point, so last determination unit can be according to the spy of touch point
Sign parameter determines the type of touch point；Further, different operations, energy can be matched according to the different type of touch point
Enough possibility of the more richer application of extension touch screen.
Referring to Fig.1 shown in 0, the embodiment of the present invention also provides the sorter of another touch point, including memory 101,
Processor 102, bus 103 and communication interface 104；Memory 101 for storing computer executed instructions, processor 102 with deposit
Reservoir 101 is connected by bus 103；When the operation of the sorter of touch point, processor 102 executes what memory 101 stored
Computer executed instructions, so that the sorter of touch point executes the classification method such as touch point provided by the above embodiment.
In concrete implementation, as one embodiment, processor 102 (102-1 and 102-2) may include one or more
A CPU, such as CPU0 and CPU1 shown in Figure 10.And as one embodiment, the sorter of touch point may include more
A processor 102, such as processor 102-1 and processor 102-2 shown in Figure 10.Each of these processors 102
CPU can be a single core processor (single-CPU), be also possible to a multi-core processor (multi-CPU).Here
Processor 102 can refer to one or more equipment, circuit, and/or the place for handling data (such as computer program instructions)
Manage core.
Memory 101 can be read-only memory 101 (read-only Memory, ROM) or can store static information and
The other kinds of static storage device of instruction, random access memory (random access memory, RAM) or can deposit
The other kinds of dynamic memory for storing up information and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory
(electrically erasable programmable read-only memory, EEPROM), CD-ROM (compact
Disc read-only memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, light
Dish, Digital Versatile Disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carry or
Store have instruction or data structure form desired program code and can by any other medium of computer access, but
It is without being limited thereto.Memory 101, which can be, to be individually present, and is connected by bus 103 with processor 102.Memory 101 can also be with
It is integrated with processor 102.
In concrete implementation, memory 101, for storing the data in the application and executing the software program of the application
Corresponding computer executed instructions.Processor 102 can by running or executing the software program being stored in memory 101,
And call the data being stored in memory 101, the various functions of the sorter of touch point.
Communication interface 104, using the device of any transceiver one kind, for other equipment or communication, such as
Control system, wireless access network (radio access network, RAN), WLAN (wireless local area
Networks, WLAN) etc..Communication interface 104 may include that receiving unit realizes that receive capabilities and transmission unit realize transmission
Function.
It is total to can be industry standard architecture (industry standard architecture, ISA) for bus 103
Line, external equipment interconnection (peripheral component interconnect, PCI) bus or extension Industry Standard Architecture
Structure (extended industry standard architecture, EISA) bus etc..The bus 103 can be divided into ground
Location bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 10, it is not intended that only one convenient for indicating
Root bus or a type of bus.
The embodiment of the present invention also provides a kind of computer storage medium, and computer storage medium includes that computer execution refers to
It enables, when computer executed instructions are run on computers, so that computer is executed such as touch point provided by the above embodiment
Classification method.
The embodiment of the present invention also provides a kind of computer program, which can be loaded directly into memory, and
Containing software code, which is loaded into via computer and can be realized touch point provided by the above embodiment after executing
Classification method.
Those skilled in the art are it will be appreciated that in said one or multiple examples, function described in the invention
It can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by these functions
Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.
Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another
Any medium of one place transmission computer program.Storage medium can be general or specialized computer can access it is any
Usable medium.
Through the above description of the embodiments, it is apparent to those skilled in the art that, for description
It is convenienct and succinct, only the example of the division of the above functional modules, in practical application, can according to need and will be upper
It states function distribution to be completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete
All or part of function described above.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the module or unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation.Such as multiple units or components
It may be combined or can be integrated into another device, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.Unit can be or can also as illustrated by the separation member
Not to be physically separated, component shown as a unit can be a physical unit or multiple physical units, it can
It is in one place, or may be distributed over multiple and different places.Can select according to the actual needs part therein or
Person's whole unit achieves the purpose of the solution of this embodiment.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.If integrated unit with
The form of SFU software functional unit is realized and when sold or used as an independent product, can store and storage Jie can be read at one
In matter.Based on this understanding, the portion that the technical solution of the embodiment of the present application substantially in other words contributes to the prior art
Divide or all or part of the technical solution can be embodied in the form of software products, which is stored in one
In storage medium, including some instructions are used so that an equipment (can be single-chip microcontroller, chip etc.) or processor
(processor) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes:
The various media that can store program code such as USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of classification method of touch point characterized by comprising
Obtain the touch area on the touch screen under each scanning direction；The scanning direction is same for one group on the touch screen
The direction of the scanning optical path of slope, the scanning light of the scanning direction of the correspondence touch area in each described touch area
Road is blocked；
Touch point is determined according to the touch area；
Obtain the characteristic parameter of touch point；The characteristic parameter of the touch point includes: the shading of the number of plies of touch point, touch point
The shape of number, the area of touch point and touch point；The number of plies of the touch point is of touch area belonging to the touch point
Number, the shading number of the touch point are in touch area belonging to the touch point comprising scanning direction where the touch area
The most touch area of scanning optical path quantity in include scanning optical path number；
The type of the touch point is determined according to the characteristic parameter of the touch point.
2. the classification method of touch point according to claim 1, which is characterized in that described to be determined according to the touch area
Touch point, comprising:
The most scanning direction in the touch area in addition to being determined as invalid touch area is determined as target direction；
Obtain the intersecting area of the touch area on the touch area and other scanning directions on the target direction；
By in each touch area on the target direction, the most intersecting area in affiliated touch area is determined as touching
Point；
All touch areas belonging to the touch point are determined as the invalid touch area；
The most scanning direction in the touch area in addition to being determined as the invalid touch area is determined as target
Direction.
3. the classification method of touch point according to claim 1, which is characterized in that the feature according to the touch point
Parameter determines the type of the touch point, comprising:
Judge whether the characteristic parameter of the touch point meets the first preset condition；First preset condition are as follows: the touch
The number of plies of point is less than first threshold, and the shading number of the touch point is less than second threshold, and the area of the touch point is less than third
Threshold value；
If the characteristic parameter of the touch point meets first preset condition, judge the shape of the touch point whether with
One preset shape is similar；
If the characteristic parameter of the touch point meets first preset condition, and the shape of the touch point and the first default shape
Shape is similar, it is determined that the type of the touch point is first kind touch point；
Judge whether the characteristic parameter of the touch point meets the second preset condition；Second preset condition are as follows: the touch
The number of plies of point is more than or equal to the first threshold and less than the 4th threshold value, and the shading number of the touch point is more than or equal to described second
Threshold value and less than the 5th threshold value, the area of the touch point is more than or equal to the third threshold value and less than the 6th threshold value；
If the characteristic parameter of the touch point meets second preset condition, judge the shape of the touch point whether with
Two preset shapes are similar；
If the characteristic parameter of the touch point meets second preset condition, and the shape of the touch point and the second default shape
Shape is similar, it is determined that the type of the touch point is Second Type touch point；
Judge whether the characteristic parameter of the touch point meets third preset condition；The third preset condition are as follows: the touch
The number of plies of point is more than or equal to the 4th threshold value, and the shading number of the touch point is more than or equal to the 5th threshold value, the touch
The area of point is more than or equal to the 6th threshold value；
If the characteristic parameter of the touch point meets third preset condition, it is determined that the type of the touch point is the touching of third type
It touches a little.
4. the classification method of touch point according to claim 3, which is characterized in that
Whether the shape for judging the touch point is similar to the first preset shape, specifically includes:
The shape of the touch point and the similarity of the first preset shape are calculated, if the similarity is greater than preset threshold, really
The shape of the fixed touch point is similar to first preset shape；
It is described to judge whether the shape is similar to the second preset shape, specifically includes:
The shape of the touch point and the similarity of the second preset shape are calculated, if the similarity is greater than preset threshold, really
The shape of the fixed touch point is similar to second preset shape.
5. a kind of sorter of touch point, which is characterized in that described device includes acquiring unit and determination unit；
The acquiring unit, for obtaining the touch area on the touch screen under each scanning direction；The scanning direction is
The direction of one group of scanning optical path with slope on the touch screen, the correspondence touch area in each described touch area
The scanning optical path of scanning direction be blocked；
The determination unit, the touch area for being obtained according to the acquiring unit, determines touch point；
The acquiring unit is also used to obtain the characteristic parameter of the touch point；The characteristic parameter of the touch point includes: to touch
The number of plies, shading number, the area of touch point and the shape of touch point of touch point of point；The number of plies of the touch point is the touch
The number of touch area belonging to point, the shading number of the touch point are in touch area belonging to the touch point comprising described
The number for the scanning optical path for including in the most touch area of the scanning optical path quantity of scanning direction where touch area；
The characteristic parameter of the determination unit, the touch point for being also used to be obtained according to the acquiring unit determines the touch
The type of point.
6. the sorter of touch point according to claim 5, which is characterized in that the determination unit is specifically used for:
By the touch area in addition to being confirmed as invalid touch area that the acquiring unit obtains at most described in sweep
It retouches direction and is determined as target direction；
Described on the touch area and other scanning directions on the target direction obtained according to the acquiring unit
The intersecting area of touch area, by the institute that in each touch area on the target direction, the affiliated acquiring unit is obtained
It states the most intersecting area in touch area and is determined as touch point；
All touch areas belonging to the touch point are determined as the invalid touch area；
The most institute in the touch area in addition to being confirmed as the invalid touch area that the acquiring unit is obtained
It states scanning direction and is determined as target direction.
7. the sorter of touch point according to claim 5, which is characterized in that the determination unit is specifically used for:
Judge whether the characteristic parameter for the touch point that the acquiring unit obtains meets the first preset condition；Described first is pre-
If condition are as follows: the number of plies of the touch point is less than first threshold, and the shading number of the touch point is less than second threshold, the touch
The area of point is less than third threshold value；
If the characteristic parameter for the touch point that the acquiring unit obtains meets first preset condition, obtained described in judgement
Whether the shape for the touch point for taking unit to obtain is similar to the first preset shape；
If the characteristic parameter for the touch point that the acquiring unit obtains meets first preset condition, and the acquisition is single
The shape for the touch point that member obtains is similar to the first preset shape, it is determined that the type of the touch point is first kind touching
It touches a little；
Judge whether the characteristic parameter for the touch point that the acquiring unit obtains meets the second preset condition；Described second is pre-
If condition are as follows: the number of plies of the touch point is more than or equal to the first threshold and less than the 4th threshold value, the shading of the touch point
Number is more than or equal to the second threshold and less than the 5th threshold value, and the area of the touch point is more than or equal to the third threshold value and small
In the 6th threshold value；
If the characteristic parameter for the touch point that the acquiring unit obtains meets second preset condition, obtained described in judgement
Whether the shape for the touch point for taking unit to obtain is similar to the second preset shape；
If the characteristic parameter for the touch point that the acquiring unit obtains meets second preset condition, and the acquisition is single
The shape for the touch point that member obtains is similar to the second preset shape, it is determined that the type of the touch point is Second Type touching
It touches a little；
Judge whether the characteristic parameter for the touch point that the acquiring unit obtains meets third preset condition；The third is pre-
If condition are as follows: the number of plies of the touch point is more than or equal to the 4th threshold value, and the shading number of the touch point is more than or equal to described
The area of 5th threshold value, the touch point is more than or equal to the 6th threshold value；
If the characteristic parameter for the touch point that the acquiring unit obtains meets the third preset condition, it is determined that the touching
The type touched a little is third type of touch point.
8. the sorter of touch point according to claim 7, which is characterized in that the determination unit is specifically used for:
The shape for the touch point that the acquiring unit obtains and the similarity of the first preset shape are calculated, if the similarity
Greater than preset threshold, it is determined that the shape of the touch point is similar to first preset shape；
The shape for the touch point that the acquiring unit obtains and the similarity of the second preset shape are calculated, if the similarity
Greater than preset threshold, it is determined that the shape of the touch point is similar to second preset shape.
9. a kind of touch screen, which is characterized in that the sorter including such as described in any item touch points claim 5-8.
10. a kind of display, which is characterized in that including touch screen as claimed in claim 9.
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