CN105260064B - A kind of touch point identification method and device and display equipment - Google Patents
A kind of touch point identification method and device and display equipment Download PDFInfo
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- CN105260064B CN105260064B CN201510675268.XA CN201510675268A CN105260064B CN 105260064 B CN105260064 B CN 105260064B CN 201510675268 A CN201510675268 A CN 201510675268A CN 105260064 B CN105260064 B CN 105260064B
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Abstract
A kind of touch point identification method of the embodiment of the present invention offer and device and display equipment, are related to electronic technology field, can reduce or eliminate time delay error, and then reduce and touch phenomenon of losing a little and break.This method, including：It drives the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction to complete a scan period, includes multiple scanning angles on vertical edge direction, include multiple scanning angles on horizontal edge direction；A most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined as reference direction, another direction is determined as reference direction；M intersection Mi of the touch area of m scanning direction in reference direction is obtained, N number of intersection Nj of the touch area of n scanning direction in reference direction is obtained, each scanning angle corresponds to a scanning direction；0 ＜ i≤M, 0 ＜ j≤N；Touch point is determined according to the intersection W1 of Mi and Nj.The embodiment of the present invention is identified for touch point.
Description
Technical field
The embodiment of the present invention is related to electronic technology field more particularly to a kind of touch point identification method and device and display
Equipment.
Background technology
Touch screen is an electronic system that can detect the presence and touch location that are touched in display area, its letter
Man-machine interaction method is changed.In current touch technology, infrared touch technology has strong environmental suitability, longer life expectancy, can recognize that
Touch the advantages such as more of counting.Infrared touch panel appearance is a rectangular configuration, by a long side transmitting side and its corresponding one
A long receiving while, a short side transmitting side and its corresponding one short receiving while composition.Have in transmitting side several infrared
Ballistic device is corresponding with several infrared receiver devices on correspondingly received side, and generally use 1 is scanned multimode, i.e., one
Ballistic device shines, and the multiple receiving devices in opposite receive simultaneously, and light net is consequently formed, and is touching according to light net and is not touching situation
Under the different shape being blocked judge touch behavior.
Existing infrared touch panel is in rectangular configuration, and traditional infrared point location algorithm is just being swept in direction according to long short side and hidden
Being in the light, road is orthogonal to obtain touch point, therefore can be worked normally when single-touch；When multiple point touching, the orthogonal points found out are more than
The points of true contact need to carry out true and false point judgement (referred to as removing terrible point), and otherwise system can malfunction.The side of existing processing
Method has time-sharing approach, zone method and logic null method.Assume that multiple point touching is the event successively occurred, each moment in time-sharing approach
Only there are one points to touch, but for multiple contacts while when touching, time-sharing approach None- identified；Zone method is by touch screen point
For multiple small regions, each region only allows a touch touch, but reduces the resolution ratio of touch screen in this way.
Traditional logic null method is better than time-sharing approach and zone method, but also has prodigious defect.In order to avoid light interference and
Power consumption limit, more light path sweep times of infrared touch panel are different, i.e., at a time only there are one ballistic devices to shine.At this moment
The light network data that contact is scanned when moving is with error, this phenomenon is referred to as time delay error, and the formation of this time delay error is former
Because being：After long side scans the position for monitoring touch point, when short side scans, touch point may move, not in original position
It sets.This just seeks and goes ghost point to bring very big influence to a position, loses point, broken string phenomenon to generate.Traditional point location is calculated
Method touches caused by cannot effectively solving therefrom loses a little and breaks.
Invention content
A kind of touch point identification method of the embodiment of the present invention offer and device and display equipment, when can reduce or eliminate
Delay is poor, and then reduces and touch phenomenon of losing a little and break.
In a first aspect, providing a kind of touch point identification method, the touch point for touch screen identifies, wherein the touch screen
Be respectively arranged with light path emitting structural and light path on two opposite horizontal edge directions and receive structure, the touch screen it is opposite two
It is respectively arranged with light path emitting structural on a vertical edge direction and light path receives structure；
The light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction is driven to complete a scan period, wherein
Include multiple scanning angles on the vertical edge direction, includes multiple scanning angles on the horizontal edge direction；
Side on the basis of a most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined
To another direction is determined as reference direction；
M intersection Mi for obtaining the touch area of m scanning direction in the reference direction, obtains the reference direction
N number of intersection Nj of the touch area of upper n scanning direction, wherein each scanning angle corresponds to a scanning direction；Wherein, 0 ＜ i
≤ M, 0 ＜ j≤N；
Touch point is determined according to the intersection W1 of the Mi and Nj.
Second aspect provides a kind of touch point identification device, and the touch point for touch screen identifies, wherein the touch screen
Be respectively arranged with light path emitting structural and light path on two opposite horizontal edge directions and receive structure, the touch screen it is opposite two
It is respectively arranged with light path emitting structural on a vertical edge direction and light path receives structure；The device includes：
Driving unit, for driving the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction to complete one
Scan period includes multiple scan angles on the horizontal edge direction wherein including multiple scanning angles on the vertical edges direction
Degree；
Processing unit, the direction of touch area at most for will be detected in horizontal edge direction or vertical edge direction
It is determined as reference direction, another direction is determined as reference direction；
Processing unit is additionally operable to obtain M intersection Mi of the touch area of m scanning direction in the reference direction,
N number of intersection Nj of the touch area of n scanning direction in the reference direction is obtained, is swept wherein each scanning angle corresponds to one
Retouch direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；And touch point is determined according to the intersection W1 of the Mi and Nj.
The third aspect provides a kind of display equipment, including：Touch screen and any of the above-described touch point identification device.
The touch point identification method and device and display equipment that the embodiment of the present invention provides, by driving touch screen horizontal
Light path emitting structural on edge direction and vertical edge direction completes a scan period, wherein including multiple sweep on vertical edge direction
Angle is retouched, includes multiple scanning angles on horizontal edge direction；The Petting Area that will be detected in horizontal edge direction or vertical edge direction
A most direction of domain is determined as reference direction, another direction is determined as reference direction；The m in reference direction is obtained to sweep
M intersection Mi of the touch area in direction is retouched, N number of intersection Nj of the touch area of n scanning direction in reference direction is obtained,
In each scanning angle correspond to a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；It is true according to the intersection W1 of the Mi and Nj
Determine touch point, due to determining touch point by the intersection of the larger reference direction in touch area and the touch area of reference direction,
And the time delay error very little on vertical edge direction or horizontal edge direction between the scanning direction of synchronization all angles can be with
Ignore, therefore time delay error can be reduced or eliminated, and then reduces and touch phenomenon of losing a little and break.
Description of the drawings
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 technology 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
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow diagram for touch point identification method that the embodiment of the present invention provides；
Fig. 2 is a kind of flow diagram for touch point identification method that another embodiment of the present invention provides；
Fig. 3 provides the schematic diagram of scanning direction and angle on a kind of horizontal edge direction for the embodiment of the present invention；
Fig. 4 provides the schematic diagram of scanning direction and angle on a kind of vertical edge direction for the embodiment of the present invention；
Fig. 5 provides a kind of schematic diagram of touch area on horizontal edge direction for the embodiment of the present invention；
Fig. 6 provides a kind of schematic diagram of touch area on vertical edge direction for the embodiment of the present invention；
Fig. 7 is a kind of intersection schematic diagram for touch area that the embodiment of the present invention provides；
Fig. 8 is a kind of effective touch area collection schematic diagram that the embodiment of the present invention provides；
Fig. 9 is a kind of structural schematic diagram for touch point identification device that the embodiment of the present invention provides；
Figure 10 is a kind of structural schematic diagram for touch point identification device that another embodiment of the present invention provides.
Specific implementation mode
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 describes, 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.
Shown in referring to Fig.1, the embodiment of the present invention provides a kind of touch point identification method, and the touch point for touch screen is known
Not, wherein being respectively arranged with light path emitting structural on the opposite two horizontal edge directions of the touch screen and light path receives structure,
It is respectively arranged with light path emitting structural on two opposite vertical edge directions of the touch screen and light path receives structure；It specifically includes
Following steps：
101, the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction is driven to complete a scan period.
Wherein, on vertical edge direction include multiple scanning angles, include multiple scanning angles on horizontal edge direction.Above-mentioned step
In rapid 101, the scanning angle on vertical edge direction is the light path and vertical edges of the light path emitting structural transmitting on vertical edge direction
The angle in direction, wherein vertical edge direction glazing road emitting structural is parallel with one group of the light path formation that the same scanning angle emits
Scanning optical path；Scanning angle on horizontal edge direction is the light path and level of the light path emitting structural transmitting on horizontal edge direction
The angle of edge direction is put down wherein horizontal edge direction glazing road emitting structural forms one group with the light path that the same scanning angle emits
Capable scanning optical path.Here it will be swept each with certain sequence in the horizontal direction and in each light path emitting structural of vertical direction
It retouches and all emits a light path on direction and be defined as a scan period, specific scanning sequency does not limit here, exemplary,
Can be that a light path transmitting from left to right first is completed to each scanning direction successively on horizontal edge direction, later vertical
A light path transmitting is completed to each scanning direction successively from top to bottom on edge direction；It can certainly be only first to vertical edges side
Aforesaid operations are carried out on horizontal edge direction after carrying out aforesaid operations upwards.
102, a most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined as base
Quasi- direction, another direction are determined as reference direction.
Touch area is the set for the light being continuously blocked on a scanning direction in step 102, illustratively in water
One scanning direction in pingbian direction, one group of all light path emitting structurals correspondence generation is parallel in a scan period sweeps
Light path is retouched, when touching, since the granularity of touch point is typically larger than the spacing of adjacent two scanning optical paths, one is touched
Control point can block continuous several light paths in the parallel scanning optical path of the group, then the continuous several light paths are corresponding scan
A scanning area under direction, wherein being located at boundary of the scanning optical path respectively as touch area of scanning area both sides.
103, M intersection Mi for obtaining the touch area of m scanning direction in the reference direction, obtains the reference
N number of intersection Nj of the touch area of n scanning direction on direction.
Wherein each scanning angle corresponds to a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N.
104, touch point is determined according to the intersection W1 of the Mi and Nj.
In the above method, touch point is determined according to the intersection W1 of Mi and Nj, due to passing through the larger benchmark side in touch area
Touch point is determined to the intersection of the touch area with reference direction, and the synchronization on vertical edge direction or horizontal edge direction
Time delay error very little between the scanning direction of all angles can be ignored, therefore can reduce or eliminate time delay error.
Further, this method is further comprising the steps of：
105, according in Mi touch point is determined with touch areas of the Nj without intersection.
Wherein, in 105 in Mi with touch areas of the Nj without intersection, touch area that reference direction of being subject to determines, which determines, touches
Touch the influence that a little further reduced time delay error.
The touch point identification method that the embodiment of the present invention provides, by driving the horizontal edge direction of touch screen and vertical edges side
Upward light path emitting structural completes a scan period, wherein including multiple scanning angles, horizontal sides side on vertical edge direction
Include multiple scanning angles upwards；By a most direction of the touch area detected in horizontal edge direction or vertical edge direction
It is determined as reference direction, another direction is determined as reference direction；Obtain the touch area of m scanning direction in reference direction
M intersection Mi, obtain reference direction on n scanning direction touch area N number of intersection Nj, wherein each scanning angle pair
Answer a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；Touch point is determined according to the intersection W1 of the Mi and Nj, due to passing through
The intersection of the touch area of the larger reference direction in touch area and reference direction determines touch point, and in vertical edge direction or
Time delay error very little on horizontal edge direction between the scanning direction of synchronization all angles can be ignored, thus can reduce or
Time delay error is eliminated, and then reduces and touches phenomenon of losing a little and break.
With reference to shown in Fig. 2, another embodiment of the present invention provides a kind of touch point identification method, is used for the touch-control of touch screen
Point identification, is wherein respectively arranged with light path emitting structural on two opposite horizontal edge directions of touch screen and light path receives structure,
It is respectively arranged with light path emitting structural on two opposite vertical edge directions of touch screen and light path receives structure；It specifically includes as follows
Step：
201, the quantity of scanning direction and the angle of each scanning direction on configuration level edge direction；Configure vertical edge direction
The quantity of upper scanning direction and the angle of each scanning direction.
Illustratively, include 3 scanning directions with reference to Fig. 3, in horizontal edge direction X-axis, the angle of the first scanning direction is
The angle of θ, the second scanning direction are pi/2, and the angle of third scanning direction is π-θ；Each scanning direction on horizontal edge direction
Angle is all made of to be indicated with the angle of X-direction；Include 3 scanning directions, the first scanning with reference to Fig. 4, in vertical edge direction Y-axis
The angle in direction is ε, and the angle of the second scanning direction is pi/2, and the angle of third scanning direction is π-ε, each on vertical edge direction
The angle of a scanning direction is all made of to be indicated with the angle of Y direction.
202, the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction is driven to complete a scan period.
Include multiple scanning angles on wherein vertical edge direction, includes multiple scanning angles on horizontal edge direction.
203, a most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined as base
Quasi- direction, another direction are determined as reference direction.
All touch areas that are blocked for detecting and counting single scanning direction in horizontal edge direction, are then detected simultaneously successively
All touch areas of horizontal other scanning directions of edge direction are counted, until all scanning directions are processed.Vertical edges side
Detection to touch area is similar with horizontal edge direction；Horizontal edge direction and each scanning direction of vertical edge direction are traversed, is found out
A most scanning direction of touch area, referred to as maximum resolution direction, if to belong to horizontal sides a certain in maximum resolution direction
Scanning direction, then be set to reference direction by horizontal edge direction (X-axis), and vertical edge direction (Y-axis) is set to reference direction；Otherwise, if
Maximum resolution direction belongs to vertical edge direction, then vertical edge direction (Y-axis) is set to reference direction, horizontal edge direction (X-axis)
For reference direction；If horizontal edge direction is identical with the maximum resolution direction touch area number of vertical edge direction, it is determined that water
Direction on the basis of any in pingbian direction (X-axis) or vertical edge direction (Y-axis), another is reference direction.
204, M intersection Mi for obtaining the touch area of m scanning direction in reference direction, obtains n in reference direction
N number of intersection Nj of the touch area of a scanning direction.
Wherein each scanning angle corresponds to a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N.Handle reference direction m
Scanning direction touch area respectively takes a touch area to carry out intersection judgement, ask friendship from m scanning direction of reference direction successively
Collection preserves effective intersection area, if there are effective intersections after the touch area intersection of m scanning direction at such cycle
Reason, as shown in figure 5, the direction on the basis of horizontal edge direction (X-axis), then effective intersection area is each scanning direction intersection in figure
Region M1 and M2, reference direction effective intersection M；The touch area of reference direction is similarly handled, and preserves reference direction
Effective intersection, as shown in fig. 6, when vertical edge direction (Y-axis) is reference direction, effective intersection area is each scanning direction in figure
The region N1 and N2 of intersection；It is N number of so to obtain the effective intersection of reference direction.
205, the intersection W1 of the Mi and Nj is determined as effective touch area collection W1.
206, the position coordinates of all candidate touch points in effective touch area collection W1 are calculated.
207, the Mi and touch areas of the Nj without intersection are determined as effective touch area collection W2.
208, the position coordinates of all candidate touch points in effective touch area collection W2 are calculated.
In step 205 to 208, based on effective intersection of reference direction, Mi (0 is taken successively<i<=M) and reference direction
Nj(0<j<=N) further seek common ground, if Mi and Nj has intersection, intersection area Wi is preserved, while marking Mi.It has handled successively
Bi Suoyou Mi are combined with Nj, obtain effective intersection area W, then search the intersection area Mi not being labeled in reference direction, will
There is also in W, obtain final all effective intersection area W by labeled Mi；Illustratively as shown in fig. 7, reference direction M1
There are intersection W1, M2 and all intersection areas of reference direction after intersecting with N2 without intersection, then reference direction M2 saves as W2, obtains final
Effective touch area collection W1, W2, as shown in Figure 8.Wherein above-mentioned 206,208 be not the limitation to step sequencing,
Middle step 206 and 208 can carry out unified position coordinates calculating after being completed in step 205 and 207.
209, to determining touch position coordinates in the position coordinates of all candidate touch points.
According to all effective touch area collection W, all candidate touch point position coordinates are found out；Then terrible point is subsequently removed
Algorithm calculating, the conversion of contact track track smoothing, coordinate and output, determine touch position coordinates.Then step 202 is skipped to, after
Touch point is detected next time for continuous execution.
The touch point identification method that the embodiment of the present invention provides, by driving the horizontal edge direction of touch screen and vertical edges side
Upward light path emitting structural completes a scan period, wherein including multiple scanning angles, horizontal sides side on vertical edge direction
Include multiple scanning angles upwards；By a most direction of the touch area detected in horizontal edge direction or vertical edge direction
It is determined as reference direction, another direction is determined as reference direction；Obtain the touch area of m scanning direction in reference direction
M intersection Mi, obtain reference direction on n scanning direction touch area N number of intersection Nj, wherein each scanning angle pair
Answer a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；Touch point is determined according to the intersection W1 of the Mi and Nj, due to passing through
The intersection of the touch area of the larger reference direction in touch area and reference direction determines touch point, and in vertical edge direction or
Time delay error very little on horizontal edge direction between the scanning direction of synchronization all angles can be ignored, thus can reduce or
Time delay error is eliminated, and then reduces and touches phenomenon of losing a little and break.
The embodiment of the present invention provides a kind of touch point identification device, and the touch point for touch screen identifies, wherein described
It is respectively arranged with light path emitting structural on two opposite horizontal edge directions of touch screen and light path receives structure, the touch screen phase
To two vertical edge directions on be respectively arranged with light path emitting structural and light path and receive structure；With reference to shown in Fig. 9, the device packet
It includes：
Driving unit 91, for driving the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction to complete one
A scan period includes multiple scannings on the horizontal edge direction wherein including multiple scanning angles on the vertical edges direction
Angle；
Processing unit 92, the side of touch area at most for will be detected in horizontal edge direction or vertical edge direction
To reference direction is determined as, another direction is determined as reference direction；
Processing unit 92 is additionally operable to obtain M intersection of the touch area of m scanning direction in the reference direction
Mi obtains N number of intersection Nj of the touch area of n scanning direction in the reference direction, wherein each scanning angle corresponds to one
A scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；And touch point is determined according to the intersection W1 of the Mi and Nj.
The touch point identification device that the embodiment of the present invention provides, by driving the horizontal edge direction of touch screen and vertical edges side
Upward light path emitting structural completes a scan period, wherein including multiple scanning angles, horizontal sides side on vertical edge direction
Include multiple scanning angles upwards；By a most direction of the touch area detected in horizontal edge direction or vertical edge direction
It is determined as reference direction, another direction is determined as reference direction；Obtain the touch area of m scanning direction in reference direction
M intersection Mi, obtain reference direction on n scanning direction touch area N number of intersection Nj, wherein each scanning angle pair
Answer a scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；Touch point is determined according to the intersection W1 of the Mi and Nj, due to passing through
The intersection of the touch area of the larger reference direction in touch area and reference direction determines touch point, and in vertical edge direction or
Time delay error very little on horizontal edge direction between the scanning direction of synchronization all angles can be ignored, thus can reduce or
Time delay error is eliminated, and then reduces and touches phenomenon of losing a little and break.
Optionally, processing unit 92 is additionally operable to determine touch point with touch areas of the Nj without intersection according in Mi.Due to Mi
In with touch areas of the Nj without intersection, reference direction of being subject to determine touch area determine touch point, when further reduced
It is delayed the influence of difference.
Optionally, referring to Fig.1 shown in 0, which further includes dispensing unit 93, is swept on the horizontal edge direction for configuring
Retouch the quantity in direction and the angle of each scanning direction；Configure the quantity of scanning direction and each scanning on the vertical edge direction
The angle in direction.
Further, the processing unit 92 is specifically used for the intersection W1 of the Mi and Nj being determined as effective touch area
Collect W1；Calculate the position coordinates of all candidate touch points in effective touch area collection W1；To all candidate touch points
Position coordinates in determine touch point coordinate.
Further, the processing unit 92 is specifically used for the Mi and touch areas of the Nj without intersection being determined as effectively
Touch area collection W2；Calculate the position coordinates of all candidate touch points in effective touch area collection W2；To all times
It selects and determines touch position coordinates in the position coordinates of touch point.
The embodiment of the present invention provides a kind of display equipment, including：The touch point that touch screen and above-described embodiment provide
Identification device.The display equipment can be：Electronic Paper, mobile phone, tablet computer, television set, display, laptop, number
Any product or component with display function such as photo frame, navigator.
The display equipment that the embodiment of the present invention provides, by driving on the horizontal edge direction of touch screen and vertical edge direction
Light path emitting structural completes a scan period, wherein including multiple scanning angles on vertical edge direction, is wrapped on horizontal edge direction
Include multiple scanning angles；A most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined as
Reference direction, another direction are determined as reference direction；Obtain M of the touch area of m scanning direction in reference direction
Intersection Mi obtains N number of intersection Nj of the touch area of n scanning direction in reference direction, wherein each scanning angle corresponds to one
A scanning direction；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；Touch point is determined according to the intersection W1 of the Mi and Nj, is touched due to passing through
The intersection of the touch area of the larger reference direction in region and reference direction determines touch point, and in vertical edge direction or level
Time delay error very little on edge direction between the scanning direction of synchronization all angles can be ignored, therefore can reduce or eliminate
Time delay error, and then reduce and touch phenomenon of losing a little and break.
Wherein, it should be noted that each unit in the present embodiment can be the processor individually set up, and can also collect
It is realized in some processor, in addition it is also possible to be stored in the storage of touch point identification device in the form of program code
In device, the function of above each unit is called by processor and executed.Processor described here can be a central processing
Device (full name in English：Central Processing Unit, English abbreviation：CPU) or specific integrated circuit is (English complete
Claim：Application Specific Integrated Circuit, English abbreviation：ASIC), or it is arranged to implement
One or more integrated circuits of the embodiment of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of touch point identification method, which is characterized in that the touch point for touch screen identifies, wherein the touch screen is opposite
Two horizontal edge directions on be respectively arranged with light path emitting structural and light path and receive structure, opposite two of the touch screen are hung down
It is respectively arranged with light path emitting structural on straight flange direction and light path receives structure；
The light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction is driven to complete a scan period, wherein described
Include multiple scanning angles on vertical edge direction, includes multiple scanning angles on the horizontal edge direction；Wherein, in the scanning
Light path emitting structural in period on horizontal edge direction all emits a light path, and vertical edges side on each scanning direction
Upward light path emitting structural all emits a light path on each scanning direction；
A most direction of the touch area detected in horizontal edge direction or vertical edge direction is determined as reference direction, separately
One direction is determined as reference direction；
M intersection Mi for obtaining the touch area of m scanning direction in the reference direction, obtains n in the reference direction
N number of intersection Nj of the touch area of a scanning direction, wherein each scanning angle corresponds to a scanning direction；Wherein, 0 ＜ i≤
M, 0 ＜ j≤N；
Touch point is determined according to the intersection W1 of the Mi and Nj.
2. touch point identification method according to claim 1, which is characterized in that further include：
According in Mi touch point is determined with touch areas of the Nj without intersection.
3. touch point identification method according to claim 1, which is characterized in that driving touch screen horizontal sides and vertical
Before light path emitting structural on side completes a scan period, the method further includes：
Configure the quantity of scanning direction and the angle of each scanning direction on the horizontal edge direction；Configure the vertical edge direction
The quantity of upper scanning direction and the angle of each scanning direction.
4. touch point identification method according to claim 1, which is characterized in that the intersection W1 according to the Mi and Nj
Determine touch point, including：
The intersection W1 of the Mi and Nj is determined as effective touch area collection W1；
Calculate the position coordinates of all candidate touch points in effective touch area collection W1；
To determining touch point coordinate in the position coordinates of all candidate touch points.
5. touch point identification method according to claim 2, which is characterized in that described according to tactile without intersection with Nj in Mi
It touches region and determines touch point, including：
The Mi and touch areas of the Nj without intersection are determined as effective touch area collection W2；
Calculate the position coordinates of all candidate touch points in effective touch area collection W2；
To determining touch position coordinates in the position coordinates of all candidate touch points.
6. a kind of touch point identification device, which is characterized in that the touch point for touch screen identifies, wherein the touch screen is opposite
Two horizontal edge directions on be respectively arranged with light path emitting structural and light path and receive structure, opposite two of the touch screen are hung down
It is respectively arranged with light path emitting structural on straight flange direction and light path receives structure；The device includes：
Driving unit, for driving the light path emitting structural on the horizontal edge direction of touch screen and vertical edge direction to complete a scanning
Period includes multiple scanning angles on the horizontal edge direction wherein including multiple scanning angles on the vertical edges direction；Its
In, the light path emitting structural within the scan period on horizontal edge direction all emits primary light on each scanning direction
Road, and the light path emitting structural on vertical edge direction all emits a light path on each scanning direction；
Processing unit, the direction of touch area at most for will be detected in horizontal edge direction or vertical edge direction determine
On the basis of direction, another direction is determined as reference direction；
Processing unit is additionally operable to obtain M intersection Mi of the touch area of m scanning direction in the reference direction, obtains
N number of intersection Nj of the touch area of n scanning direction in the reference direction, wherein each scanning angle corresponds to a scanning side
To；Wherein, 0 ＜ i≤M, 0 ＜ j≤N；And touch point is determined according to the intersection W1 of the Mi and Nj.
7. device according to claim 6, which is characterized in that the processing unit be additionally operable to according in Mi with Nj without intersection
Touch area determine touch point.
8. device according to claim 6, which is characterized in that further include dispensing unit, for configuring the horizontal sides side
Scan up the quantity in direction and the angle of each scanning direction；Configure on the vertical edge direction quantity of scanning direction and every
The angle of a scanning direction.
9. device according to claim 6, which is characterized in that the processing unit is specifically used for the friendship of the Mi and Nj
Collection W1 is determined as effective touch area collection W1；The position for calculating all candidate touch points in effective touch area collection W1 is sat
Mark；To determining touch point coordinate in the position coordinates of all candidate touch points.
10. device according to claim 7, which is characterized in that the processing unit be specifically used for by the Mi and Nj without
The touch area of intersection is determined as effective touch area collection W2；Calculate all candidate touch points in effective touch area collection W2
Position coordinates；To determining touch position coordinates in the position coordinates of all candidate touch points.
11. a kind of display equipment, which is characterized in that including：Touch screen, and such as claim 6-10 any one of them touch-controls
Point identification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510675268.XA CN105260064B (en) | 2015-10-15 | 2015-10-15 | A kind of touch point identification method and device and display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510675268.XA CN105260064B (en) | 2015-10-15 | 2015-10-15 | A kind of touch point identification method and device and display equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105260064A CN105260064A (en) | 2016-01-20 |
| CN105260064B true CN105260064B (en) | 2018-09-28 |
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| CN109542276B (en) * | 2018-11-22 | 2022-02-08 | 青岛海信商用显示股份有限公司 | Touch point identification method and device and display equipment |
| CN109814796A (en) * | 2018-12-29 | 2019-05-28 | 新奥特（北京）视频技术有限公司 | A kind of method and system for simulating touch-control |
| CN110502160B (en) * | 2019-08-19 | 2023-03-28 | 青岛海信商用显示股份有限公司 | Touch point classification method and device, touch screen and display |
| CN110489015B (en) * | 2019-08-19 | 2023-08-08 | 青岛海信商用显示股份有限公司 | Touch point determining method and device, touch screen and display |
| 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 |
| CN114415864B (en) * | 2020-10-13 | 2024-02-02 | 青岛海信商用显示股份有限公司 | Touch area determining method and display device |
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