CN106020568B - Touch area extracting method, device and display equipment - Google Patents
Touch area extracting method, device and display equipment Download PDFInfo
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- CN106020568B CN106020568B CN201610312545.5A CN201610312545A CN106020568B CN 106020568 B CN106020568 B CN 106020568B CN 201610312545 A CN201610312545 A CN 201610312545A CN 106020568 B CN106020568 B CN 106020568B
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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
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of touch area extracting method, device and display equipment, are related to touch-control field, for solving the problems, such as that reducing scanning optical path in existing Infrared touch screen technology causes extraction touch area precision low.Touch area extracting method includes: in each scan period, and each transmitting fluorescent tube controlled in transmitting side successively emits multi-strip scanning optical path, wherein the multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception fluorescent tubes received on side；Whether the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube is blocked；The extracted region defined by scanning optical path that is not blocked recently for the scanning optical path that is blocked will be surrounded as touch area.The embodiment of the present invention is applied to infrared touch panel.
Description
Technical field
The present invention relates to touch-control field more particularly to a kind of touch area extracting methods, device and display equipment.
Background technique
Existing Infrared touch screen technology calculates possible touching by using road (horizontal optical path and vertical optical path) is just cleared off
Region is touched, the range of touch area is then further reduced according to the case where road is blocked tiltedly is cleared off, it will be in touch area
Heart point is as touch point；Or successively intersected to obtain touch area by the directive optical path that is blocked of institute, then, it will touch
The central point in region is touched as touch point.The algorithm of said extracted touch area is to participate in calculating by all scanning optical paths, right
It is very big in scanning delay influence, in view of the above-mentioned problems, a kind of method is to promote scanning speed by reducing optical path density, still
This method but causes the touch area precision extracted to reduce, or even is difficult to extract touch area when touch objects are smaller.
Summary of the invention
The embodiment of the present invention provides a kind of touch area extracting method, device and display equipment, existing red for solving
Scanning optical path is reduced in outer touch screen technology to be caused to extract the low problem of touch area precision.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, a kind of touch area extracting method is provided, this method comprises:
In each scan period, each transmitting fluorescent tube controlled in transmitting side successively emits multi-strip scanning optical path, wherein
The multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception fluorescent tubes received on side；
Whether the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube is blocked；
The extracted region defined by scanning optical path that is not blocked recently for the scanning optical path that is blocked will be surrounded as Petting Area
Domain.
Second aspect provides a kind of touch area extraction element, extracts applied to touch area described in first aspect
Method, the device include:
Control unit, in each scan period, each transmitting fluorescent tube in control transmitting side successively to emit a plurality of
Scanning optical path, wherein each scanning optical path in the multi-strip scanning optical path is corresponding in turn to receive on side adjacent and multiple connects
Receive fluorescent tube；
Whether detection unit, the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube are blocked；
Extraction unit, the region defined by scanning optical path that is not blocked recently for that will surround the scanning optical path that is blocked mention
It is taken as touch area.
The third aspect provides a kind of display equipment, including the touch area extraction element as described in second aspect.
Touch area extracting method, device and the display equipment that the embodiment of the present invention provides, by each scanning week
Interim, each transmitting fluorescent tube controlled in transmitting side successively emits multi-strip scanning optical path, wherein multi-strip scanning optical path is corresponding in turn to
Receive adjacent multiple reception fluorescent tubes on side；Whether the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube is blocked；It will packet
The extracted region defined by scanning optical path that is not blocked for the scanning optical path that is blocked is enclosed as touch area.It is swept by suitably increasing
Optical path quantity is retouched to increase the light reticular density intersected to form, and by the layout of optimization light net, even if reducing transmitting fluorescent tube
Quantity, it is also ensured that the precision that touch area is extracted according to the light net intersected to form solves existing Infrared touch screen technology
The middle scanning optical path that reduces causes to extract the low problem of touch area precision.
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 a kind of structural schematic diagram for display equipment that the embodiment of the present invention provides；
Fig. 2 is a kind of flow diagram for touch area extracting method that the embodiment of the present invention provides；
Fig. 3 is the schematic diagram for the increase scanning optical path that the embodiment of the present invention provides；
Adjacent multiple reception fluorescent tubes shows on the corresponding reception side of transmitting fluorescent tube that Fig. 4 provides for the embodiment of the present invention
It is intended to；
Fig. 5 is preferably a pair of three schematic diagram that the embodiment of the present invention provides；
The schematic diagram that Fig. 6 is formed by fine and closely woven light net for the embodiment of the present invention provides preferably a pair of three；
Fig. 7 is the schematic diagram for the touch area that the embodiment of the present invention provides；
Fig. 8 is a kind of schematic diagram for extraction touch area mode that the embodiment of the present invention provides；
Fig. 9 is another schematic diagram for extracting touch area mode that the embodiment of the present invention provides；
Figure 10 is the schematic diagram for another extraction touch area mode that the embodiment of the present invention provides；
Figure 11 is the schematic diagram for the further extraction touch area mode that the embodiment of the present invention provides；
Figure 12 is the structural schematic diagram for the touch area extraction element that the embodiment of the present invention provides.
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.
The present invention provides a kind of display equipment, can include the equipment of touch screen for mobile phone, computer, smart television etc.,
Referring to fig. 1, comprising: touch screen 101, touch area extraction element 102.Touch screen 101 includes the first transmitting side, first
It receives when, the second transmitting side, second receive, touch area extraction element 102 is connected with the four edges of touch screen 101 respectively.
Touch area extraction element 102 controls the first transmitting edge emitting scanning signal of touch screen 101, controls the first of touch screen 101
Side is received to receive by the scanning signal of the first transmitting edge emitting；Control the second transmitting edge emitting scanning signal of touch screen 101, control
The second of touch screen 101 processed receives side and receives by the scanning signal of the second transmitting edge emitting.By to the scanning in all directions
The scanning signal that is blocked in signal crosspoint extracting touch area, and then obtain touch point.
Embodiment 1,
The present invention provides a kind of touch area extracting methods, applied to display equipment described in Fig. 1, for extracting touching
Region is touched, referring to fig. 2, this method comprises:
S101, in each scan period, control transmitting side on each transmitting fluorescent tube successively emit multi-strip scanning optical path,
Wherein, multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception fluorescent tubes received on side.
Wherein, in 1 pair of n scanning mode, every scanning optical path possesses different angles for each transmitting fluorescent tube,
We term it a scanning directions.Therefore, 1 pair of n scanning mode will have n scanning direction, and each scanning direction is by one group
Parallel sweep optical path with slope forms, and illustratively, as shown in fig. 1, the first transmitting side and the second transmitting side are 1 pair 3
Scanning mode, therefore correspondingly, the first transmitting side and the second transmitting side are respectively provided with 3 scanning directions.
Here it will be located at the transmitting fluorescent tube in the first transmitting side or the second transmitting side with certain sequence in each scanning direction
Upper all transmittings single pass optical path is defined as a scan period, and specific scanning sequency here without limitation, can be according to
Transmitting fluorescent tube putting in order in transmitting side successively executes or executes at equal intervals.
When the transmitting side described in this step is the first transmitting side described in Fig. 1, then reception side described in this step is
Side is received for described in Fig. 1 first；When the transmitting side described in this step is the second transmitting side described in Fig. 1, then this step
The rapid reception is when being the second reception described in Fig. 1.
Specifically, this step is in a scan period, each transmitting fluorescent tube in control transmitting side successively emits N number of
The scanning optical path of scanning direction, wherein the scanning optical path of N number of scanning direction is corresponding in turn to the adjacent N number of reception received on side
Fluorescent tube.
Referring to fig. 3, this step is equivalent to the density for increasing scanning optical path for each transmitting fluorescent tube, each in this way
When the scanning optical path in direction intersects, finer and closely woven light net is formed, accordingly even when reducing the quantity of transmitting fluorescent tube, it is also ensured that root
The precision of touch area is extracted according to the light net intersected to form.
Multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception fluorescent tubes received on side, certain those skilled in the art
It is contemplated that the corresponding non-conterminous multiple reception fluorescent tubes received on side, but the corresponding adjacent multiple reception fluorescent tubes received on side
It can guarantee light net more evenly by comparison, touch-control effect is more preferable.
Those skilled in the art is further envisioned that referring to fig. 4, adjacent on the corresponding reception side of a transmitting fluorescent tube
Multiple reception fluorescent tubes, one-to-many number can rule of thumb determine that, when reception fluorescent tube number is more, calculation delay is corresponding
Increase.
Preferably, using the transmitting fluorescent tube as intersection point, selection is symmetrical more with the vertical line (the overstriking solid line in Fig. 4) of transmitting side
A reception fluorescent tube can guarantee that the light net intersected to form is relatively uniform, and touch-control effect is more preferable.It is further preferred that referring in Fig. 5
It is shown, the mode of a pair three is selected, i.e., one transmitting fluorescent tube is corresponding to receive three reception fluorescent tubes adjacent on side, forms three and sweeps
It retouches optical path, and scanning optical path most intermediate in this three scanning optical paths is using the transmitting fluorescent tube as intersection point, and hangs down with transmitting side
Directly, it ultimately forms uniform fine and closely woven light net shown in Fig. 6 and (for clarity, the corresponding transmitting side of vertical direction is only shown in figure
With reception side).
Whether S102, the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube are blocked.
Specifically, successively whether each scanning optical path of detection transmitting edge emitting is blocked.
It illustratively, can be equidistant according to each transmitting fluorescent tube putting in order in transmitting side, or using interval
Mode come traverse it is each transmitting fluorescent tube transmitting N scanning optical path.
S103, the extracted region defined by scanning optical path that is not blocked recently for the scanning optical path that is blocked will be surrounded as touching
Touch region.
For each scanning direction, one group of parallel scanning optical path is corresponded to, when there is touch to occur, due to touch point
Granularity is typically larger than the spacing of adjacent two scanning optical paths, therefore a touch point can block and connect in the parallel scanning optical path of the group
Several continuous optical paths, then the continuous several optical paths are a touch area under the corresponding scanning direction.Illustratively,
It as shown in Figure 7, is the schematic diagram of touch area on two scanning directions, wherein dotted line indicates the scanning optical path shape being blocked
At touch area, solid line indicates the boundary of touch area, and touch area intersection partially forms touch point.Those skilled in the art
Member is it is further envisioned that be equally applicable to the present invention by the way of other scanning directions or scanning direction number.
Scanning optical path, which is blocked, illustrates have touch action, referring to fig. 7, sentenced on the path of scanning optical path place
When disconnected touch area, the scanning optical path role that is blocked will be weaker than be not blocked adjacent with the scanning optical path that is blocked and scan light
The effect on road.Therefore, the extracted region defined by scanning optical path that is not blocked for the scanning optical path that is blocked will be surrounded as touch
Region, it is ensured that touch area will not be lost, while guaranteeing that the touch area extracted is as small as possible, convenient for distinguishing adjacent touch
Region.
Illustratively, preferably in three mode of a pair shown in Fig. 5 as example, to touch area extracting method of the invention
It is illustrated:
Referring to fig. 8, BD is the scanning optical path that is blocked in left figure, and AD and BE are to surround not being blocked recently for BD to sweep
Optical path is retouched, then the region that heavy line ABED is surrounded is touch area.Ae is the scanning optical path that is blocked in right figure, and ad and be are not
Be blocked scanning optical path, then the region that heavy line abed is surrounded is touch area.
Referring to fig. 9, BE is the scanning optical path that is blocked, and BD, BF, AE, CE are to surround not being blocked recently for BE to sweep
Optical path is retouched, then the region that heavy line MBNE is surrounded is touch area.
Referring to fig. 10, AE and BE is to be blocked scanning optical path, AD, BF, CE be encirclement AE and BE recently not by
Scanning optical path is blocked, then the region that heavy line ABNED is surrounded is touch area.
Further, if the adjacent scanning optical path that is blocked reception fluorescent tube having the same or transmitting fluorescent tube, will surround phase
Same reception fluorescent tube emits the extracted region defined by scanning optical path that is not blocked recently of fluorescent tube as touch area.
Referring to Fig.1 shown in 1, the touch area further progress in Figure 10 is extracted, since AE and BE are having the same
Fluorescent tube or transmitting fluorescent tube E are received, therefore the extracted region that the heavy line DBNE for surrounding E is surrounded is touch area.
Each of touch area extracting method provided by the invention, by each scan period, control in transmitting side
Transmitting fluorescent tube successively emits multi-strip scanning optical path, wherein multi-strip scanning optical path is corresponding in turn to the adjacent multiple receptions received on side
Fluorescent tube；Whether the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube is blocked；By surround be blocked scanning optical path not by
Extracted region defined by scanning optical path is blocked as touch area.Increase X-shape by suitably increasing scanning optical path quantity
At light reticular density, and by optimization light net layout, even if reduce transmitting fluorescent tube quantity, it is also ensured that according to intersection
The light net of formation extracts the precision of touch area, solves to reduce scanning optical path in existing Infrared touch screen technology to cause to extract and touch
Touch the low problem of pixel accuracy.
Embodiment 2,
The present invention provides a kind of touch area extraction elements, applied to equipment is shown shown in Fig. 1, as therein
Touch area extraction element 102 is applied to touch area extracting method shown in Fig. 2, referring to Fig.1 shown in 2, comprising:
Control unit 1201, in each scan period, each transmitting fluorescent tube controlled in transmitting side successively to emit
Multi-strip scanning optical path, wherein each scanning optical path in multi-strip scanning optical path is corresponding in turn to receive on side adjacent and multiple connects
Receive fluorescent tube.
Whether detection unit 1202, the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube are blocked.
Extraction unit 1203, for the area defined by scanning optical path that is not blocked recently for the scanning optical path that is blocked will to be surrounded
Domain, which is extracted, is used as touch area.
Optionally, a kind of implementation is provided, extraction unit 1203 is also used to:
If the adjacent scanning optical path that is blocked reception fluorescent tube having the same or transmitting fluorescent tube, will surround identical reception lamp
The extracted region defined by scanning optical path that is not blocked recently of pipe or transmitting fluorescent tube is as touch area.
Optionally, a kind of implementation is provided, control unit 1201 is specifically used for:
Each transmitting fluorescent tube in control transmitting side successively emits three scanning optical paths.
Optionally, a kind of implementation is provided, the scanning optical path of centre and transmitting side are hung down in above-mentioned three scanning optical paths
Directly.
Since the touch area extraction element in the embodiment of the present invention can be used for executing above method process,
Technical effect be can be obtained see also above method embodiment, details are not described herein for the embodiment of the present invention.
It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, it can be with
It realizes by another way.For example, apparatus embodiments described above are merely indicative, for example, the 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 can be combined or can be integrated into another system, 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 equipment or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
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.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) 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: USB flash disk, mobile hard disk, read-only memory (full name in English: read-only memory, English letter
Claim: ROM), random access memory (full name in English: random access memory, English abbreviation: RAM), magnetic disk or light
The various media that can store program code such as disk.
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 (9)
1. a kind of touch area extracting method characterized by comprising
In each scan period, each transmitting fluorescent tube controlled in transmitting side successively emits multi-strip scanning optical path, wherein described
Multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception fluorescent tubes received on side；
Whether the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube is blocked；
The extracted region defined by scanning optical path that is not blocked recently for the scanning optical path that is blocked will be surrounded as touch area.
2. the method according to claim 1, wherein the method also includes:
If the adjacent scanning optical path that is blocked reception fluorescent tube having the same or transmitting fluorescent tube, will surround the identical reception lamp
The extracted region defined by scanning optical path that is not blocked recently of pipe or transmitting fluorescent tube is as the touch area.
3. the method according to claim 1, wherein each transmitting fluorescent tube in the control transmitting side is successively sent out
Penetrate multi-strip scanning optical path, comprising:
The each transmitting fluorescent tube controlled in the transmitting side successively emits three scanning optical paths.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
Intermediate scanning optical path is vertical with the transmitting side in three scanning optical paths.
5. a kind of touch area extraction element characterized by comprising
Control unit, in each scan period, each transmitting fluorescent tube controlled in transmitting side successively to emit multi-strip scanning
Optical path, wherein each scanning optical path in the multi-strip scanning optical path is corresponding in turn to the adjacent multiple reception lamps received on side
Pipe；
Whether detection unit, the multi-strip scanning optical path for successively detecting each transmitting fluorescent tube are blocked；
Extraction unit, the extracted region defined by scanning optical path that is not blocked recently for that will surround the scanning optical path that is blocked are made
For touch area.
6. device according to claim 5, which is characterized in that the extraction unit is also used to:
If the adjacent scanning optical path that is blocked reception fluorescent tube having the same or transmitting fluorescent tube, will surround the identical reception lamp
The extracted region defined by scanning optical path that is not blocked recently of pipe or transmitting fluorescent tube is as the touch area.
7. device according to claim 5, which is characterized in that described control unit is specifically used for:
The each transmitting fluorescent tube controlled in the transmitting side successively emits three scanning optical paths.
8. device according to claim 7, which is characterized in that described device further include:
Intermediate scanning optical path is vertical with the transmitting side in three scanning optical paths.
9. a kind of display equipment, including the touch area extraction element as described in any one of claim 5-8.
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| CN201610312545.5A CN106020568B (en) | 2016-05-11 | 2016-05-11 | Touch area extracting method, device and display equipment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106775135B (en) * | 2016-11-14 | 2020-06-09 | 海信视像科技股份有限公司 | Method and device for positioning touch point on infrared touch device and terminal equipment |
| CN106802744B (en) * | 2017-01-03 | 2019-11-29 | 青岛海信电器股份有限公司 | The method and device that touch area is positioned when touch control operation occurs for infrared touch panel |
| CN106775121B (en) * | 2017-01-17 | 2019-11-29 | 青岛海信电器股份有限公司 | Determine that touch operation corresponds to the method and device of touch area in infrared touch panel |
| CN108696271B (en) * | 2018-05-28 | 2022-02-25 | 珠海慧联科技有限公司 | Sliding gesture recognition method and system based on capacitive touch keys |
| 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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| CN204314854U (en) * | 2014-12-31 | 2015-05-06 | 鸿合科技有限公司 | The infrared touch panel that many scanning group cover |
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