CN109933244A - A kind of touch panel sensor and touch identification method for large scale touch screen - Google Patents
A kind of touch panel sensor and touch identification method for large scale touch screen Download PDFInfo
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Abstract
The present invention provides a kind of touch panel sensor and touch identification method for large scale touch screen, method includes: that touch-control IC acquires the region induction amount of the region induction electrode and the coordinate induction amount of the coordinate induction electrode in real time；Judge whether to touch according to the region induction amount and coordinate induction amount；In case of touch, then judged to touch the region occurred according to the region induction amount, and calculate the position coordinates touched according to the coordinate induction flowmeter；Coordinate calculating is carried out in such a way that region recognition and coordinate identification combine, touch location can be accurately identified, obtain position coordinates, method is simple, and it is highly reliable, overall cost can be reduced.
Description
Technical field
The present invention relates to technical field of touch control more particularly to a kind of touch panel sensors and touching for large scale touch screen
Touch recognition methods.
Background technique
Existing market increases large-sized display touch scheme demand, according to the design scheme of industry routine, one
5.5 cun of general mobile phone screen touch scheme, capacitor number of channels is M+N, and (M is driving electrodes quantity, and N is induced electricity number of poles
Amount), each driving electrodes, induction electrode are both needed to and touch-control IC(touch chip) on a pin connect, it is general 5.5 cun shield
Design scheme in N be greater than 12, with M=24, for N=13, if the one direction length of touch screen is for example laterally or longitudinally grown
Degree doubles, then the number of channels of the direction also will increase one times, it is assumed that quantity N=13 of induction electrode double, and are 26
A, overall channel quantity increases to 50, in industry the packaging appearance size of the touch-control IC of 50 electrode pins need to accomplish 7 ×
7mm or more, wafer cost, packaging cost and shared physical space in equipment can increase accordingly, and both increase touching in this way
The development cost of IC is controlled, and occupies more physical spaces.
Summary of the invention
It is an object of the invention to increase bring touch-control IC pin for above-mentioned touch screen size in the prior art to increase
The problem of more, occupied space is big, increased costs, proposes a kind of touch panel sensor and touch recognition for large scale touch screen
Method can effectively solve the problem that the above problem.
One of to solve above-mentioned technical problem, the present invention provides a kind of touch panel sensor for large scale touch screen,
Including touch-control IC, first electrode layer and the second electrode lay, the first electrode layer is divided into N number of region, the first electrode layer
Including multiple for calculating the first electrodes and the first area electrode of touch area for identification of touch location；
First area electrode is inserted between first electrode；
First area electrode passes through the pin that the first signal wire is connected to the touch-control IC respectively, positioned at firstth area of the same area
Domain electrode is connected to same pin；
First electrode number consecutively in each region, the identical N number of first electrode of number passes through second signal line in N number of region
It is connected to the corresponding same pin of the touch-control IC；
The touch-control IC is used to acquire the coordinate sense of the region induction amount and the first electrode of the first area electrode in real time
Ying Liang judges whether to touch according to the region induction amount and coordinate induction amount, in case of touching, then according to the area
The judgement of domain induction amount touches the region occurred and the coordinate induction flowmeter calculates the position coordinates touched.
Further, the second electrode lay is divided into W region, and the second electrode lay includes multiple for incuding touching
It touches the second electrode of position and the second area electrode of touch area, the value range of W is 2-10 for identification.
Further, the first electrode layer is induction electrode layer and the second electrode lay is drive electrode layer；Or
The first electrode layer is drive electrode layer and the second electrode lay is induction electrode layer.
Further, the value range of N is 2-10.
Further, the first electrode layer is induction electrode layer and the second electrode lay is drive electrode layer；It is described
The quantity of the coordinate induction electrode of each region of induction electrode layer is identical or the coordinate of each region of the induction electrode layer
The quantity of induction electrode is different.
Further, the drive electrode layer includes multiple driving electrodes, and the multiple driving electrodes are advised along first direction
It then arranges, the multiple coordinate induction electrode is regularly arranged in a second direction, and the first direction and second direction are vertical；
The multiple driving electrodes are respectively connected to the pin of the touch-control IC by third signal wire；
The drive electrode layer and the non-same layer setting of the induction electrode layer.
On the other hand, a kind of touch identification method is provided, above-mentioned touch panel sensor, the first electrode are applied to
Layer is induction electrode layer and the second electrode lay is drive electrode layer；The described method includes:
Touch-control IC acquires the region induction amount of the region induction electrode and the coordinate induction amount of the coordinate induction electrode in real time；
Judge whether to touch according to the region induction amount and coordinate induction amount；
In case of touch, then judge that touching the region occurred and the coordinate induction flowmeter calculates touching according to the region induction amount
The position coordinates touched.
Further, judge whether to touch according to the region induction amount and coordinate induction amount, comprising:
The region induction amount and zonal basis amount when not touching are compared calculating, obtain regional change amount；
By the coordinate induction amount and when not touching, coordinate basis amount is compared calculating, obtains changes in coordinates amount；
If the regional change amount, which is greater than predeterminable area, incudes threshold value, and the changes in coordinates amount is greater than preset coordinate and incudes threshold
Value, it is determined that touched, the region induction electrode region that regional change amount is greater than predeterminable area induction threshold value is hair
The raw region touched.
Further, if the regional change amount of two region induction electrodes is all larger than the predeterminable area induction threshold value,
Then two regional change amounts are compared, and the region where the determining biggish region induction electrode of regional change amount is to occur
The region of touch.
Further, the position coordinates of touch are calculated, comprising:
According to the pixel value of the vertical direction along coordinate induction electrode and peak width ratio, calculates and obtain mean pixel amount；
The mean pixel amount is distributed to each coordinate induction electrode；
According to the coordinate induction amount and amount of pixels of the coordinate induction electrode touched, initial coordinate is calculated using centroid algorithm；
According to the region occurred and peak width ratio is touched, abscissa offset is calculated, meter is deviated according to the abscissa
Calculate the coordinate of the position touched.
Further, the abscissa of touch location is calculate by the following formula:
X'= X + D'；
Wherein, X is the abscissa of initial coordinate, and X ' is the abscissa of the position touched, and D ' is that the abscissa of corresponding region deviates
Amount.
One specific embodiment provides a kind of touch panel sensor for large scale touch screen, including touch-control IC, sense
Electrode layer and drive electrode layer are answered, the induction electrode layer is divided into N number of region, and the induction electrode layer includes multiple for feeling
Answer the coordinate induction electrode and the region induction electrode of touch area for identification of touch location；
Region induction electrode passes through the pin that the first signal wire is connected to the touch-control IC respectively, feels positioned at the region of the same area
Electrode is answered to be connected to same pin；
Coordinate induction electrode number consecutively in each region, the identical N number of coordinate induction electrode of number passes through the in N number of region
Binary signal line is connected to the corresponding same pin of the touch-control IC；
The touch-control IC is used to acquire the region induction amount of the region induction electrode and the seat of the coordinate induction electrode in real time
Induction amount is marked, judges whether to touch according to the region induction amount and coordinate induction amount, in case of touching, then according to institute
It states the judgement of region induction amount and touches the region occurred, and calculate the coordinate of the position touched according to the coordinate induction flowmeter.
Herein, " large scale touch screen " refers to 6 inches or more of touch screen.In some concrete application examples, " large scale
Touch screen " refers in particular to 10 inches or more of touch screen.Wherein, 6 inch touchscreen refers to the diagonal line of the screen of touch screen
It is long for 6 inches.
Provided by the present invention for the touch panel sensor and touch identification method of large scale touch screen, include at least as follows
The utility model has the advantages that (1) carries out subregion identification by way of the induction electrode of setting area, to touch screen, it is applied to large-sized
Touch screen, it is possible to reduce the number of pin of touch-control IC connection coordinate induction electrode reduces touch-control IC volume, saves space, reduces
Production cost can reduce overall cost；(2) coordinate calculating is carried out in such a way that region recognition and coordinate identification combine,
It can accurately identify touch location, obtain position coordinates, method is simple, highly reliable.(3) few number of channels may be implemented
Mobile phone IC drives large-sized touch screen, without developing touch-control IC again, while keeping its precision unaffected.Can in short,
The present invention provides a kind of " channel multiplexing " technical solution, small IC can support large screen.
Detailed description of the invention
Fig. 1 is a kind of structural representation of embodiment of touch panel sensor provided by the present invention for large scale touch screen
Figure, which show the embodiments that each region is uniformly distributed coordinate induction electrode quantity, wherein the coordinate induced electricity of three region ABC
Number of poles is 13；
Fig. 2 is provided by the present invention for the structural representation under a kind of application scenarios of touch panel sensor of large scale touch screen
Figure, which show the wiring relationships between touch-control IC, coordinate induction electrode, region induction electrode, driving electrodes；
Fig. 3 is the structural schematic diagram provided by the present invention for the touch panel sensor another kind embodiment of large scale touch screen；
Fig. 4 is a kind of flow chart of embodiment of touch identification method provided by the invention；
Fig. 5 is capacitance field schematic diagram when not touching in touch identification method provided by the invention；
Fig. 6 is induction amount schematic diagram when not touching in touch identification method provided by the invention；
Fig. 7 is for illustrating capacitance field schematic diagram when touching in touch identification method provided by the invention；
Fig. 8 is induction amount schematic diagram when touching in touch identification method provided by the invention；
Fig. 9 is provided by the present invention for the structural representation under the touch panel sensor another kind application scenarios of large scale touch screen
Figure, which show the embodiments of each area non-uniform distribution coordinate induction electrode quantity, wherein the coordinate sense of three region JKL
The quantity of electrode is answered to be followed successively by 12,12,13；
Figure 10 shows for the decomposition texture of the touch panel sensor another kind embodiment provided by the present invention for large scale touch screen
It is intended to, wherein induction electrode layer is divided into three regions, respectively first area M, second area N and third region O, driving
Electrode layer is divided into Two Areas, respectively the 5th region P and the 6th region Q；
Figure 11 is the induction electrode layer plane figure of the touch panel sensor for large scale touch screen of Figure 10；
Figure 12 is the plan view of the drive electrode layer of the touch panel sensor for large scale touch screen of Figure 10；
Figure 13 is the plan view of the touch panel sensor for large scale touch screen of Figure 10；
Figure 14 be for illustrating touch screen VA(View area, visible area) division schematic diagram；
Description of symbols: touch-control IC-100；Coordinate induction electrode -101；Region induction electrode -102；Driving electrodes -103；Area
Domain identifies electrode -104.
Specific embodiment
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to
Limit the present invention.
Embodiment one
With reference to Fig. 1 and Fig. 2, the present embodiment provides a kind of touch panel sensors for large scale touch screen, including touch-control
IC100, induction electrode layer and drive electrode layer, the induction electrode layer are divided into N number of region, and the induction electrode layer includes more
A coordinate induction electrode 101 for being used to incude touch location and for identification the region induction electrode 102 of touch area；
Region induction electrode 102 is connected to the pin of touch-control IC100 by the first signal wire respectively, positioned at the region of the same area
Induction electrode 102 is connected to same pin；
101 number consecutively of coordinate induction electrode in each region, the identical N number of coordinate induction electrode 101 of number in N number of region
The corresponding same pin of touch-control IC100 is connected to by second signal line；
Touch-control IC is used to acquire the region induction amount of the region induction electrode 102 and the coordinate of coordinate induction electrode 101 in real time
Induction amount judges whether to touch according to region induction amount and coordinate induction amount, in case of touching, then according to the region
The judgement of induction amount touches the region occurred, and the position coordinates touched are calculated according to the coordinate induction flowmeter.In other words, according to institute
State coordinate induction flowmeter calculate touch position coordinates, and in conjunction with the region induction amount judge touch occur region, jointly into
Row coordinate setting.
Wherein, the touch panel sensor of the present embodiment is the sensor of mutual tolerance touch screen.Induction electrode layer and driving electrodes
The non-same layer setting of two layers of setting of layer point, i.e. induction electrode layer and drive electrode layer.
Specifically, the present embodiment by divide three regions and three region areas it is identical for be illustrated.
With reference to Fig. 1 and Fig. 2,101 number consecutively of coordinate induction electrode in each region numbers identical 3 in 3 regions
A coordinate induction electrode 101 is connected to the same pin of touch-control IC100 by second signal line.
Specifically, induction electrode layer is divided into three regions, respectively first area A, second area B and third region
C is provided with 13 coordinate induction electrodes in each region, and number is respectively RX1, and RX2 ... RX13 will number identical coordinate
Induction electrode is connected to the same pin of touch-control IC100 by second signal line, i.e. RX1 in 3 regions is connected to touch-control
The same pin of IC100, and so on.
Region induction electrode 102 is inserted between coordinate induction electrode, and the region induction electrode in the same area is connected to
Same pin on touch-control IC, such as all areas induction electrode 102 in the A of first area are connected on touch-control IC as RX14
Same pin, all areas induction electrode in second area B is connected to the same pin on touch-control IC, third as RX15
All areas induction electrode in the C of region is connected to the same pin of touch-control IC as RX16.
The drawing of sensor provided in this embodiment laterally includes 39 coordinate induction electrodes, according to traditional scheme, is needed
39 pins are correspondingly connected to, using scheme provided in this embodiment, only need 13 pin connection coordinate induction electrodes, 3
Pin join domain induction electrode, in total 16 pins can meet demand, greatly reduce the number of pin of touch-control IC, in turn
The size of touch-control IC is reduced, production cost is reduced.
It is arranged in this way, touch-control IC, coordinate induction electrode, region induction electrode, the channel between driving electrodes are ingenious
Multiplexing can also realize the touch-control that 10 cun or more display screens are controlled using Mobile phone touch control IC.
Further, the quantity in region can be configured according to the size of practical touch screen, reality as one preferred
Mode is applied, the value range of N is 2-10.
Further, the area of each region can be the same or different, and preferred embodiment is each region face
Product is identical, is needed for pixel to be averaged using centroid algorithm coordinates computed to each coordinate induction electrode, therefore each region
Area is identical to can simplify calculating.
Further, with reference to Fig. 3, the drive electrode layer includes multiple driving electrodes 103, the multiple driving electrodes
103 is regularly arranged along first direction, and the multiple coordinate induction electrode 101 is regularly arranged in a second direction, the first direction
It is vertical with second direction；First direction is that diagram is lateral, and second direction is that diagram is longitudinal,
The multiple driving electrodes 103 are respectively connected to the pin of touch-control IC by third signal wire；
The drive electrode layer and the non-same layer setting of the induction electrode layer.
Touch panel sensor working principle provided in this embodiment is as follows:
It is touched in any one region, such as the coordinate induction electrode RX1 in any one region is touched, then touch-control IC
Corresponding pin can receive induction amount, then determine which region is touched by the induction amount of region induction electrode,
Region has been determined and then initial coordinate, the initial seat being calculated are calculated using centroid algorithm according to induction amount and amount of pixels
It marks further according to the region where touching, abscissa adds corresponding offset, calculates the position coordinates for obtaining and touching.
If touching the boundary for occurring exactly at two regions, corresponding two region induction electrodes can be experienced
It arrives, compares the induction amount of two region induction electrodes at this time, the region where selecting induction to measure biggish region induction electrode is made
It is calculated for touch area.
Specific method please refers to embodiment two.
It is the spirit induced according to node when designing the inductor of mutual tolerance touch screen according to the accuracy requirement in industry
Sensitivity carries out coordinate setting, and design sensor exactly will be divided into multiple lines and multiple rows unit, each row and column in the area touch screen VA
The unit of intersection is known as a node, and when design node area, the X/Y length of interval of node is 5mm-9mm.Such as Figure 14 institute
Show, the use of X is 5mm, Y 6mm in figure, if so an IC only TX 24, RX 16, then its node keeps normal performance
In the case of the maximum area that can be supported be X-direction (rectangle length direction) TX*9mm=24*9=216mm；Y-direction (rectangle width
Direction) RX*9mm=16*9=144mm, corresponding size maximum is exactly 10.2 cun or so.It should be noted that Figure 14 is only to illustrate, figure
In 14 and not set 24 TX and 16 RX.But actually have more 10.2 cun or more of touch screen demand, if realized
Identical required precision can only increase number of channels, develop IC again, improve IC cost.And as described above, the present embodiment
It can solve this technical problem.
Touch panel sensor provided in this embodiment for large scale touch screen, passes through the side of setting area induction electrode
Formula carries out subregion identification to touch screen, is applied to large-sized touch screen, it is possible to reduce touch-control IC connection coordinate induction electrode
Number of pin, reduce touch-control IC volume, save space, reduce production cost, overall cost can be reduced.
Embodiment two
With reference to Fig. 4, the present embodiment provides a kind of touch identification methods, are applied to such as embodiments herein, especially embodiment one
The touch panel sensor, which comprises
Step S201, touch-control IC acquire the region induction amount of the region induction electrode and the seat of the coordinate induction electrode in real time
Mark induction amount；
Step S202 judges whether to touch according to the region induction amount and coordinate induction amount；
Step S203 then judges to touch the region occurred according to the region induction amount, and according to the seat in case of touching
It marks induction flowmeter and calculates the position coordinates touched.
Specifically, step S201 is executed, touch-control IC acquires the region induction amount of the region induction electrode and described in real time
The coordinate induction amount of coordinate induction electrode, with reference to Fig. 5 and Fig. 6, capacitor field distribution when Fig. 5 is no touch, each node driving electricity
A relatively steady state is formed between pole TX and induction electrode RX, induction amount when there is no touching is Raw-cap0,
TQ is that predeterminable area incudes threshold value, and TS is that preset coordinate incudes threshold value.
With reference to Fig. 7 and Fig. 8, when touching, finger will suck it away a part of capacitance field magnetic line of force (referring to diagram dotted line part
Point), the induction amount after touch can become smaller as Raw-cap1.
Further, step S202 is executed, judges whether to touch according to the region induction amount and coordinate induction amount,
It specifically includes:
The region induction amount and zonal basis amount when not touching are compared calculating, obtain region by step S2021
Variable quantity；
Step S2022, by the coordinate induction amount and when not touching, coordinate basis amount is compared calculating, obtains coordinate and becomes
Change amount；
Step S2023, if the regional change amount is greater than predeterminable area and incudes threshold value, and the changes in coordinates amount is greater than default
Coordinate incudes threshold value, it is determined that is touched.
It is Raw- that induction amount when variable quantity is there is no touching, which is Raw-cap0 with the induction amount touched,
The difference of cap1.Threshold value is incuded when regional change amount is greater than predeterminable area, and the changes in coordinates amount incudes greater than preset coordinate
Threshold value, it is determined that touched.For example, predeterminable area incudes threshold value and preset coordinate incudes threshold value in some application examples
Finger is taken to touch the 30%-60% of maximum induction amount.In other application examples, predeterminable area incudes threshold value and preset coordinate induction
Threshold value takes the 20%-80% of the maximum induction amount of finger touch.
Further, the region induction electrode region that regional change amount is greater than predeterminable area induction threshold value is to touch
The region touched.By taking the sensor that embodiment one provides as an example, if first area A is touched, with region induction electrode
The regional change amount of the pin acquisition of RX14 connection is greater than predeterminable area threshold value, and second area B and third region C are similarly.
Further, if finger is just pressed in the boundary in two regions, corresponding two regions incude coordinate
It will incude, i.e., the regional change amount of two region induction electrodes is all larger than the predeterminable area induction threshold value, at this time will
Two regional change amounts are compared, and the region where the determining biggish region induction electrode of regional change amount is to touch
Region.Assuming that finger pressing is had a common boundary in first area A and second area B, then region induction electrode RX14 and RX15 can feel
It should arrive, compare two regional change amounts, the region where the biggish region induction electrode of selection region variable quantity is to touch
Region.
Further, it is determined that calculating the position coordinates of touch after the region at touch place, specifically including:
According to the pixel value of the vertical direction along coordinate induction electrode and peak width ratio, calculates and obtain mean pixel amount；
The mean pixel amount is distributed to each coordinate induction electrode and region induction electrode；
According to the coordinate induction amount and amount of pixels of the coordinate induction electrode touched, initial coordinate is calculated using centroid algorithm；
According to the region occurred and peak width ratio is touched, abscissa offset is calculated, meter is deviated according to the abscissa
Calculate the position coordinates touched.
In the above-described embodiments, pixel equalization is distributed into each coordinate induction electrode in each region.But alternative
In embodiment, pixel is distributed to each coordinate induction electrode in region in a manner of unequal, in other words, each coordinate induction
The width of electrode can not be identical.
Further, the abscissa of the position of touch is calculated by following formula (1):
X '=X+D ' (1)；
Wherein, X is that the abscissa of initial coordinate actually acquires coordinate, and X ' is that the abscissa of the position touched reports coordinate,
D ' is the abscissa offset of corresponding region.D ' is abscissa offset corresponding with the region for touching generation.
In the present embodiment, each region is uniformly distributed coordinate induction electrode quantity, wherein the coordinate induced electricity of three region ABC
Number of poles is 13, and the area of three region ABC is identical, and amount of pixels is identical, and therefore, the abscissa of the position of touch can also lead to
Following formula is crossed to be calculated:
X '=X+(Q * i) (2)；
Wherein, X is that the abscissa of initial coordinate actually acquires coordinate, and X ' is that the abscissa of the position touched reports coordinate, Q
For mean pixel amount, Q * i is abscissa offset, i 0,1,2.As described later, 640 Q.
Reference table 1, it is assumed that horizontal pixel 1920 divides three regions, and trizonal area is identical, then 1920/3=
640, mean pixel amount is 640, mean pixel amount is assigned to each coordinate induction electrode, amount of pixels is allocated as follows:
| RX1 | RX2 | RX3 | RX4 | RX5 | RX6 | RX7 | RX8 | RX9 | RX10 | RX11 | RX12 | RX13 | RX14 |
| 0 | 49 | 98 | 148 | 197 | 246 | 295 | 345 | 394 | 443 | 492 | 542 | 591 | 640 |
Table 1
In other words, there is triggering in the area first area A, reports coordinate=actually acquire coordinate.There is triggering in the area second area B, reports coordinate
=actually acquire coordinate+offset 640*1.There is triggering in the third region area C, reports coordinate=actually acquire coordinate+offset 640*2.
According to the amount of pixels and induction amount of each coordinate induction electrode, acquisition initial coordinate can be calculated using centroid algorithm,
Centroid algorithm is the common algorithm of technical field of touch control, and to be well known to those of ordinary skill in the art, details are not described herein.If
It touches and occurs then to calculate the position coordinates that the initial coordinate of acquisition as actually touches in first area, occur if touching
Second area, then calculate the abscissa of the initial coordinate of acquisition plus offset 640*1, the position coordinates as actually touched,
If touching the abscissa for occurring then to calculate the initial coordinate of acquisition in third region plus offset 640*2, as practical touching
The position coordinates touched, the ordinate of actual touch position are identical as the ordinate of initial coordinate for calculating acquisition.
Touch identification method provided in this embodiment, in such a way that region recognition and coordinate identification combine, Neng Gouzhun
True identification touch location obtains position coordinates, and method is simple, highly reliable.
Embodiment three
Then, referring to Fig. 9, the touch panel sensor being related to the embodiment of the present invention three is illustrated.In addition, except non-specifically saying
Bright, the composition for the touch panel sensor that embodiment three is related to is identical as the composition illustrated in embodiment one referring to figs. 1 to Fig. 8.With
Under, the touch panel sensor that mainly embodiment three is related to constitute in the composition part different from embodiment one be illustrated, it is right
Structure identical with the touch panel sensor that embodiment one is related to is omitted.
With reference to Fig. 9, the present embodiment provides a kind of touch panel sensors for large scale touch screen, are different from embodiment
One, the induction electrode of touch panel sensor provided in this embodiment is divided into three regions, first area and second area area
Identical, third region area is different from first area and second area, in first area be provided with 12 in second area
Coordinate induction electrode is provided with 13 coordinate induction electrodes in third region, the identical coordinate induced electricity of number in three regions
Pole is connected to the same pin of touch-control IC, and the 13rd coordinate induction electrode in third region is connected individually to one on touch-control IC
A pin.
Assuming that trizonal width ratio is 3:3:4, horizontal pixel 1920, the abscissa offset of first area is 0,
The abscissa offset of second area is 1920*3/ (3+3+4)=570, and the abscissa offset in third region is 1920*(3+
3)/(3+3+4)=1140 is calculated after obtaining initial coordinate, according to the region where touching, in addition abscissa offset, can obtain
Obtain the abscissa of touch location.
Example IV
Then, referring to Fig.1 0 to Figure 13, the touch panel sensor being related to the embodiment of the present invention four is illustrated.In addition, removing
Non-specifically illustrate, the structure illustrated in the composition for the touch panel sensor that example IV is related to, with embodiment one referring to figs. 1 to Fig. 8
At identical.Hereinafter, the touch panel sensor that mainly example IV is related to constitute in the composition part different from embodiment one into
Row explanation, omits the identical structure of the touch panel sensor being related to embodiment one.
On the basis of example 1, the drive electrode layer can be divided into W region, and W is described more than or equal to 2
Drive electrode layer includes multiple for incuding the driving electrodes and the region recognition electrode of touch area for identification of touch location.
Specifically, referring to Fig.1 0 to Figure 13, induction electrode layer is divided into three regions, respectively first area M, second
13 coordinate inductions are provided in region N and third region O, first area M, second area N and the third region each region O
Electrode, number are respectively RX1, RX2 ... RX13, will number identical coordinate induction electrode by second signal line and are connected to touching
Control the same pin of IC100, i.e. RX1 in 3 regions is connected to the same pin of touch-control IC100, and so on.
Moreover, drive electrode layer is divided into Two Areas, respectively the 5th region P and the 6th region Q, the 5th region P and
13 driving electrodes are provided in 6th region Q, number is respectively TX1, TX2 ... TX13, will number identical driving electricity
Pole is connected to the same pin of touch-control IC100 by signal wire, i.e. TX1 in 2 regions is connected to the same pipe of touch-control IC100
Foot, and so on.
Region induction electrode 102 is inserted between coordinate induction electrode, and the region induction electrode in the same area is connected to
Same pin on touch-control IC, such as all areas induction electrode 102 in the A of first area are connected on touch-control IC as RX14
Same pin, all areas induction electrode in second area B is connected to the same pin on touch-control IC, third as RX15
All areas induction electrode in the C of region is connected to the same pin of touch-control IC as RX16.
Similarly, on the 5th region P of drive electrode layer and the 6th region Q, region recognition electrode (not labeled) is inserted in
Between driving electrodes, the region recognition electrode in the same area is connected to the same pin on touch-control IC, such as in the 5th region P
All areas identification electrode as TX16 be connected to the same pin on touch-control IC, all areas in the 6th region Q identify
Electrode is connected to the same pin on touch-control IC as TX15.
Sensor provided in this embodiment includes 39 coordinate induction electrodes, 26 driving electrodes, according to traditional scheme,
It needs to be correspondingly connected to 65 pins, using scheme provided in this embodiment, only needs 13 pin connection coordinate induction electrodes, 3
A pin join domain induction electrode, the driving electrodes of 13 pin connection drive electrode layers, 2 pins connect drive electrode layer
Region recognition electrode, in total 31 pins can meet demand, greatly reduce the number of pin of touch-control IC, and then reduce
The size of touch-control IC reduces production cost.
It is arranged in this way, touch-control IC, coordinate induction electrode, region induction electrode, the channel between driving electrodes are ingenious
Multiplexing can also realize the touch-control that 10 cun or more display screens are controlled using Mobile phone touch control IC.
Further, the area of each region may be the same or different, and preferred embodiment is each region face
Product is identical, is needed for pixel to be averaged using centroid algorithm coordinates computed to each coordinate induction electrode, therefore each region
Area is identical to can simplify calculating.
Compared with embodiment one, the touch panel sensor of the present embodiment can reduce the number of pin of touch-control IC.
The Computing Principle and formula of the abscissa of touch location has been described in embodiment two, and actually touches in embodiment two
The ordinate for touching position is identical as the ordinate of initial coordinate for calculating acquisition.In the present embodiment, the ordinate of touch location,
It needs to calculate ordinate offset according to the region occurred and region height ratio is touched, what principle and embodiment two described
The Computing Principle of the abscissa of touch location is similar with formula.
In the present embodiment, each region is uniformly distributed driving electrodes quantity, wherein the driving of the 5th region P and the 6th region Q
Number of electrodes is 13, and the area of the 5th region P and the 6th region Q are identical, and amount of pixels is identical, and therefore, the position of touch is indulged
Coordinate can also be calculated by following formula (3):
Y '=Y+(U * i) (3)；
Wherein, Y is that the abscissa of initial coordinate actually acquires coordinate, and Y ' is that the abscissa of the position touched reports coordinate, U
For mean pixel amount, U * i is abscissa offset, i 0,1.As described later, 540 U.
Assuming that longitudinal pixel is 1080,2 regions are divided, the area in 2 regions is identical, then 1080/2=540, averagely picture
Element amount is 540, and mean pixel amount is assigned to each driving electrodes.
According to the amount of pixels of each driving electrodes and induction amount, acquisition initial coordinate, center of gravity can be calculated using centroid algorithm
Algorithm is the common algorithm of technical field of touch control, and to be well known to those of ordinary skill in the art, details are not described herein.If touching
Occur then to calculate the position coordinates that the initial coordinate of acquisition as actually touches in the 5th region P, occur if touching the 6th
Region Q, the then ordinate for calculating the initial coordinate of acquisition add offset 540*1, the position coordinates as actually touched.
Thus, it is possible to obtain the abscissa of actual touch position and the ordinate of actual touch position.
Embodiment five
According to another embodiment, a kind of touch panel sensor for large scale touch screen is provided comprising touch-control IC, the first electricity
Pole layer and the second electrode lay, the first electrode layer are divided into N number of region, and the first electrode layer includes multiple for calculating touching
Touch the first electrode and the first area electrode of touch area for identification of position；
First area electrode passes through the pin that the first signal wire is connected to the touch-control IC respectively, positioned at firstth area of the same area
Domain electrode is connected to same pin；
First electrode number consecutively in each region, the identical N number of first electrode of number passes through second signal line in N number of region
It is connected to the corresponding same pin of the touch-control IC；
The touch-control IC is used to acquire the coordinate sense of the region induction amount and the first electrode of the first area electrode in real time
Ying Liang judges whether to touch according to the region induction amount and coordinate induction amount, in case of touching, then according to the area
The judgement of domain induction amount touches the region occurred and the coordinate induction flowmeter calculates the position coordinates touched.
First area electrode is inserted between first electrode." first area electrode is inserted between first electrode " at least wraps
Include two kinds of situations.The first situation is as shown in Figure 1, first area electrode (region induction electrode 102) is inserted in first electrode (seat
Mark induction electrode 101) it is internal, second situation is as shown in Fig. 2, first area electrode (number is respectively RX14, RX15, RX16)
It is inserted between adjacent first electrode (number is respectively RX1, RX2 ... RX13).
It wherein may be such that the second electrode lay is divided into W region, the second electrode lay includes multiple for feeling
Answer the second electrode and the second area electrode of touch area for identification of touch location.
It wherein may be such that the first electrode layer is induction electrode layer, and the second electrode lay is drive electrode layer.
Or it may be such that the first electrode layer is drive electrode layer, and the second electrode lay is induction electrode layer.
Embodiment one describes that the first electrode layer is induction electrode layer and the second electrode lay is drive electrode layer
The case where, but may be such that the first electrode layer is drive electrode layer, the second electrode lay is induction electrode layer.
In some alternate embodiments, the first electrode layer is drive electrode layer, and the second electrode lay is induction
Electrode layer, the first electrode layer are divided into N number of region, the unallocated region of the second electrode lay.
In other alternate embodiments, the first electrode layer is drive electrode layer, and the second electrode lay is sense
Electrode layer is answered, the first electrode layer is divided into N number of region, and the second electrode lay is divided into W region.
The principle of the touch identification method of the first electrode layer and the second electrode lay is referred to embodiment two and implements
Example four.
Wherein, the value range of W and N is preferably 2-10 but it is also possible to be bigger numerical value.
It should be noted that the application provides a kind of touch identification method, including double-deck mutual tolerance subregion touch screen, multilayer mutual tolerance point
The touch identification method of region touch screen, the double-deck mutual tolerance touch screen of subregion, calculates the position coordinates of touch.Certainly, originally
Field those of ordinary skill is readily apparent that touch identification method provided by the present application also can be used for herein not other exhaustive subregions
Touch screen touch coordinate calculate.
As described above, the touch coordinate for describing the i.e. partition touch screen of touch identification method herein calculates, and not in detail
The specific pattern of coordinate induction electrode, region induction electrode and driving electrodes is described to the greatest extent.Coordinate induction electrode, region induction electrode
Various existing patterns can be used with the specific pattern of driving electrodes, herein with no restrictions.Coordinate induction electrode, region induction
Electrode and the specific pattern of driving electrodes are for example referred to the Chinese utility model patent application of the applicant
2019203725947 and Chinese utility model patent application 2019203725970.Two utility applications pass through complete
The mode of text reference is incorporated into herein herein.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (11)
1. a kind of touch panel sensor for large scale touch screen, which is characterized in that including touch-control IC, first electrode layer and
Two electrode layers, the first electrode layer are divided into N number of region, and the first electrode layer includes multiple for calculating touch location
The first area electrode of first electrode and for identification touch area；
First area electrode is inserted between first electrode；
First area electrode passes through the pin that the first signal wire is connected to the touch-control IC respectively, positioned at firstth area of the same area
Domain electrode is connected to same pin；
First electrode number consecutively in each region, the identical N number of first electrode of number passes through second signal line in N number of region
It is connected to the corresponding same pin of the touch-control IC；
The touch-control IC is used to acquire the coordinate sense of the region induction amount and the first electrode of the first area electrode in real time
Ying Liang judges whether to touch according to the region induction amount and coordinate induction amount, in case of touching, then according to the area
The judgement of domain induction amount touches the region occurred and the coordinate induction flowmeter calculates the position coordinates touched.
2. the touch panel sensor according to claim 1 for large scale touch screen, which is characterized in that second electricity
Pole layer is divided into W region, and the second electrode lay includes multiple second electrodes for being used to incude touch location and for identification
The second area electrode of touch area, the value range of W are 2-10.
3. the touch panel sensor according to claim 1 for large scale touch screen, which is characterized in that first electricity
Pole layer is induction electrode layer and the second electrode lay is drive electrode layer；Or the first electrode layer be drive electrode layer and
The second electrode lay is induction electrode layer.
4. the touch panel sensor according to claim 1 for large scale touch screen, which is characterized in that the value model of N
It encloses for 2-10.
5. the touch panel sensor according to claim 1 for large scale touch screen, which is characterized in that the induced electricity
The quantity of the coordinate induction electrode of each region of pole layer is identical or the coordinate induced electricity of each region of the induction electrode layer
The quantity of pole is different.
6. the touch panel sensor according to claim 5 for large scale touch screen, which is characterized in that the driving electricity
Pole layer includes multiple driving electrodes, and the multiple driving electrodes are regularly arranged along first direction, the multiple coordinate induction electrode
Regularly arranged in a second direction, the first direction and second direction are vertical；
The multiple driving electrodes are respectively connected to the pin of the touch-control IC by third signal wire；
The drive electrode layer and the non-same layer setting of the induction electrode layer.
7. a kind of touch identification method, which is characterized in that applied to the touch panel sensor as described in claim 1-6 is any,
The first electrode layer is induction electrode layer and the second electrode lay is drive electrode layer；The described method includes:
Touch-control IC acquires the region induction amount of the region induction electrode and the coordinate induction amount of the coordinate induction electrode in real time；
Judge whether to touch according to the region induction amount and coordinate induction amount；
In case of touch, then judge that touching the region occurred and the coordinate induction flowmeter calculates touching according to the region induction amount
The position coordinates touched.
8. touch identification method according to claim 7, which is characterized in that incuded according to the region induction amount and coordinate
Amount judges whether to touch, comprising:
The region induction amount and zonal basis amount when not touching are compared calculating, obtain regional change amount；
By the coordinate induction amount and when not touching, coordinate basis amount is compared calculating, obtains changes in coordinates amount；
If the regional change amount, which is greater than predeterminable area, incudes threshold value, and the changes in coordinates amount is greater than preset coordinate and incudes threshold
Value, it is determined that touched, the region induction electrode region that regional change amount is greater than predeterminable area induction threshold value is hair
The raw region touched.
9. touch identification method according to claim 8, which is characterized in that if the region of two region induction electrodes becomes
Change amount is all larger than predeterminable area induction threshold value, then is compared two regional change amounts, and determine regional change amount compared with
Region where big region induction electrode is the region touched.
10. touch identification method according to claim 8, which is characterized in that calculate the position coordinates of touch, comprising:
According to the pixel value of the vertical direction along coordinate induction electrode and peak width ratio, calculates and obtain mean pixel amount；
The mean pixel amount is distributed to each coordinate induction electrode；
According to the coordinate induction amount and amount of pixels of the coordinate induction electrode touched, initial coordinate is calculated using centroid algorithm；
According to the region occurred and peak width ratio is touched, abscissa offset is calculated, meter is deviated according to the abscissa
Calculate the coordinate of the position touched.
11. touch identification method according to claim 10, which is characterized in that the abscissa of touch location passes through following public affairs
Formula is calculated:
X'= X + D'；
Wherein, X is the abscissa of initial coordinate, and X ' is the abscissa of the position touched, and D ' is that the abscissa of corresponding region deviates
Amount.
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