CN105589600B - Touch-control display panel, touch control display apparatus and touch control detecting method - Google Patents
Touch-control display panel, touch control display apparatus and touch control detecting method Download PDFInfo
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- CN105589600B CN105589600B CN201511007333.8A CN201511007333A CN105589600B CN 105589600 B CN105589600 B CN 105589600B CN 201511007333 A CN201511007333 A CN 201511007333A CN 105589600 B CN105589600 B CN 105589600B
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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
Abstract
The embodiment of the invention discloses a kind of touch-control display panel, touch control display apparatus and touch control detecting methods.The touch-control display panel includes first substrate, second substrate, the first touch control electrode layer and second touch control electrode layer, and first touch control electrode layer is with the second touch control electrode layer insulation set on the first substrate or the second substrate；First touch control electrode layer includes N number of the first touch control electrode extended in a first direction, the second touch control electrode layer includes the M second touch control electrodes extended in a second direction, the first direction and the second direction are intersected, N, M is positive integer, in the touch-control period, first touch control electrode and the second touch control electrode receive touch control detection signal simultaneously.Touch-control display panel provided by the present invention disclosure satisfy that the demand for the quantity for reducing the information input output interface in touch-control display panel in connecting wire and driving chip.
Description
Technical field
The present embodiments relate to touch-control display technology more particularly to a kind of touch-control display panel, touch control display apparatus and
Touch control detecting method.
Background technology
Currently, in self-tolerant touch-control display panel, multiple touch control electrode blocks are usually set in array substrate, it is multiple
Touch control electrode block is arranged successively in the way of matrix.Each touch control electrode block passes through connecting wire and driving chip
On signal input output interface electrical connection.When touch-control display panel size is larger or the touch-control resolution ratio of touch-control display panel
It when more demanding, needs that numerous touch control electrode block is arranged, the correspondingly required connection with each touch control electrode Block- matching is led
The quantity of signal input output interface on line and driving chip also can substantially increase.
Invention content
The present invention provides a kind of touch-control display panel, touch control display apparatus and touch control detecting methods, are touched with realizing to reduce
Control the demand of the quantity of the information input output interface in display panel in connecting wire and driving chip.
In a first aspect, an embodiment of the present invention provides a kind of touch-control display panel, which includes the first base
Plate, second substrate, the first touch control electrode layer and second touch control electrode layer, first touch control electrode layer and second touch-control electricity
Pole layer insulation set, and first touch control electrode layer is arranged on the first substrate or the second substrate, described second
Touch control electrode layer is arranged on the first substrate or the second substrate；
First touch control electrode layer includes N number of the first touch control electrode extended in a first direction, the second touch-control electricity
Pole layer includes the M second touch control electrodes extended in a second direction, and the first direction and the second direction are intersected, and N, M are equal
For positive integer, in the touch-control period, first touch control electrode and the second touch control electrode receive touch control detection signal simultaneously.
Second aspect, the embodiment of the present invention additionally provide a kind of touch control display apparatus, which includes this hair
Any touch-control display panel provided in bright embodiment and driving chip, wherein N number of first touch control electrode, and
The M second touch control electrodes are electrically connected with the driving chip.
The third aspect, the embodiment of the present invention additionally provide a kind of touch control detecting method, specifically, the touch-control driving device
Working time section be divided into touch-control period and display period, within the touch-control period, the driving chip is simultaneously to N
A first touch control electrode and M second touch control electrode send touch control detection signal, and according to N number of first touch control electrode and institute
The touch control detection change amount signal for stating M second touch control electrode determines position of touch.
The embodiment of the present invention is N number of along first party by the way that the touch control electrode arranged in the prior art by matrix-style to be optimized for
The second touch control electrode extended in a second direction to the first touch control electrode and M of extension, effectively reduces the number of touch control electrode
Mesh solves connecting wire and the signal for due to touch control electrode Numerous, causing to be connected with touch control electrode in the prior art
Input/output interface Numerous, the problem that touch-control display panel manufacturing cost is high, product yield is low realize effectively reduction and touch
The quantity of connecting wire and information input output interface in display panel is controlled, and conducive to cost of manufacture is reduced, it is good to improve product
The purpose of rate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of touch-control display panel provided in an embodiment of the present invention；
Fig. 2 a are the structural schematic diagrams of another touch-control display panel provided in an embodiment of the present invention；
Fig. 2 b are the structural schematic diagrams of another touch-control display panel provided in an embodiment of the present invention；
Fig. 2 c are the structural schematic diagrams of another touch-control display panel provided in an embodiment of the present invention；
Fig. 3 is the dimensional structure diagram of another touch-control display panel provided in an embodiment of the present invention；
Fig. 4 is sectional view of the touch-control display panel in Fig. 3 along A1-A2；
Fig. 5 is a kind of structural schematic diagram of touch control display apparatus provided in an embodiment of the present invention；
Fig. 6 is a kind of flow chart for touch control detecting method that the embodiment of the present invention is provided；
Fig. 7 a- Fig. 7 d are true according to the touch control detection change amount signal of N number of first touch control electrode and M second touch control electrode
Determine the schematic diagram of position of touch.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of touch-control display panel provided in an embodiment of the present invention.The touch-control display panel packet
Include first substrate (not shown in figure 1), second substrate (not shown in figure 1), the first touch control electrode layer 10 and second touch control electrode
Layer 20 (in Fig. 1 in order to reduce lines number, so that those skilled in the art may be better understood, when drawing, has ignored
The thickness of first touch control electrode layer 10 and second touch control electrode layer 20), the first touch control electrode layer 10 and second touch control electrode layer 20
Insulation set, and the first touch control electrode layer 10 is arranged on first substrate or second substrate, the setting of second touch control electrode layer 20 exists
On first substrate or second substrate；First touch control electrode layer 10 includes N number of the first touch control electrode extended along first direction 111
11, second touch control electrode layer 20 includes M 211 second touch control electrodes 21 extended in a second direction, first direction 111 and second
Direction 211 intersects, and N, M are positive integer, and in the touch-control period, the first touch control electrode 11 and second touch control electrode 21 receive simultaneously
Touch control detection signal.
It should be noted that in the technical scheme, the first touch control electrode layer 10 is arranged in first substrate or second substrate
On, second touch control electrode layer 20 is arranged on first substrate or second substrate, refers to the first touch control electrode layer 10 and the second touch-control
Electrode layer 20 can be set on same substrate and can also be set on different substrate.It, can be according to reality in specific design
It is selected.In addition, the touch-control display panel that the technical program is provided can be organic LED display panel,
It may be liquid crystal display panel.When touch-control display panel is liquid crystal display panel, first substrate or second substrate specifically may be used
Think the array substrate or color membrane substrates in liquid crystal display panel.When touch-control display panel is organic LED panel,
First substrate or second substrate are specifically as follows array substrate or cover board in organic LED panel.
Wherein, the first touch control electrode 11 can be regular pattern or irregular pattern, and second touch control electrode 21 can be rule
Then pattern or irregular pattern.This refers to each the first touch control electrode 11 and each second touch control electrode 21 can be
Regular pattern, can not also regular pattern.The pattern of each first touch control electrode 11 can be with other the first touch control electrodes
11 or second touch control electrode 21 pattern it is identical, can also be with the pattern of other first touch control electrodes 11 or second touch control electrode 21
It differs.Similarly, the pattern of each second touch control electrode 21 can be with other second touch control electrodes 21 or the first touch-control electricity
The pattern of pole 11 is identical, can also be differed with the pattern of other second touch control electrodes 21 or the first touch control electrode 11.Fig. 2 a, figure
The structural schematic diagram of three kinds of touch-control display panels is illustratively given in 2b and Fig. 2 c.In fig. 2 a, the first touch control electrode layer
In 10 the pattern of first touch control electrode 11 be rule rectangle pattern, but in the second electrode lay 20 second touch control electrode 21 figure
Case is irregular pattern.In figure 2b, the pattern of first touch control electrode 11 is irregular pattern in first electrode layer 10, but second
The pattern of second touch control electrode 21 is the rectangle pattern of rule in touch control electrode layer 20.First touch control electrode layer 10 in figure 2 c
In the pattern of the first touch control electrode 11 and the pattern of second touch control electrode 21 in the second electrode lay 20 be irregular pattern.
It should be noted that illustratively giving two kinds of irregular patterns in Fig. 2 a, Fig. 2 b and Fig. 2 c, this is only institute of the present invention
Two specific examples rather than limitation of the present invention provided.In specific design, the first touch-control can be determined according to demand
The pattern of electrode 11 and second touch control electrode 21.
If in view of after inputting touch control detection signal to N number of first touch control electrode 11, if adjacent two first
The distance between touch control electrode 21 (the first spacing) is too small, can exist interfere with each other each other；Similarly, if to M
After second touch control electrode 21 inputs touch control detection signal, if the distance between two adjacent second touch control electrodes 21 (second
Spacing) it is too small, can also exist interfere with each other each other, this will influence the accuracy of determining position of touch.Preferably, it first touches
Control electrode 11 in a first direction 111 the first width and two adjacent the first touch control electrodes 11 in a first direction on 111 the
The ratio of one spacing is less than 5:1 and second touch control electrode 21 second direction 211 the second width with adjacent two second
The ratio of second spacing of the touch control electrode 21 in second direction 211 is less than 5:1.
Further, according to electrostatic screen principle, the touch control electrode for being located at upper layer may will be positioned at the touch control electrode of lower layer
Signal shielding, preferably, if second touch control electrode layer 20 is located at the top of the first touch control electrode layer 10, second touch control electrode 21
Width in second direction 211 is less than the width in the first touch control electrode 11 in a first direction 111.Setting can be effective in this way
Weaken the electrostatic shield effect of second touch control electrode 20 pair of first touch control electrode layer 10 of layer.It should be noted that it is assumed that
Two touch control electrode layers 20 are located at 10 top of the first touch control electrode layer, this is only a specific example rather than limitation of the present invention.
In specific design, second touch control electrode layer 20 can be set and be located at 10 top of the first touch control electrode layer, first can also be arranged
Touch control electrode layer 10 is located at 20 top of second touch control electrode layer.Further, it is preferable to be, first direction is with second direction angle
90 degree.
In addition, the first touch control electrode 11 can be made of indium tin oxide material, or metal material is made.It is similar
Ground, second touch control electrode 21 can be made of indium tin oxide material, or metal material is made.In specific design, only
It needs to ensure that it has good conductive property.Since indium tin oxide material is a kind of transparent conductive material, do not interfere with
The display effect of touch panel, and its diameter of section of metal wire is small, is conducive to the effect for weakening electrostatic screen to the maximum extent,
Second touch control electrode layer 20 is located on the basis of 10 top of the first touch control electrode layer, and preferably, second touch control electrode 21 is oxidation
Indium tin material is made or second touch control electrode 21 is metal wire.
Be worth explanation is a little, when user touches the touch-control display panel that the embodiment of the present invention is provided, mainly to lead to
It crosses and detects the touch control detection change amount signal of each touch control electrode and determine position of touch.And for touch control detection change amount signal,
It can be impacted by being primarily present two factors：First, whether the touch control electrode is touched；Second is that the touch control electrode itself
Direct-to-ground capacitance value.In specific design, if the shape of each touch control electrode or material are different, each touch control electrode direct-to-ground capacitance itself
Value is also different, and each touch control electrode is made to be directed to same touch action, and the touch control detection change amount signal of output is multifarious.
In this case, though position of touch information can be calculated according to the touch control detection change amount signal that each touch control electrode exports,
But its calculating process is complicated, it is long to determine that position of touch takes, user experience is bad.In order to effectively reduce according to touch control electrode
The touch control detection change amount signal of output determines position of touch required time, preferably, pair of each first touch control electrode
Ground capacitance is the first capacitance C1, and/or, the direct-to-ground capacitance of each second touch control electrode is the second capacitance C2.It designs in this way,
The process that the touch control detection change amount signal exported according to touch control electrode determines position of touch can effectively be simplified, be conducive to improve
User experience.Further alternative, the first capacitance C1 is identical as the value of the second capacitance C2.
In addition it is also necessary to explanation, if using the prior art realize touch-control display panel resolution ratio be 64, need by
Touch area is divided into 64 touch control electrode blocks, and each touch control electrode block is by a connecting wire and driving chip
A signal input output interface electrical connection.I.e. to realize that the resolution ratio of touch-control display panel is 64,64 companies are needed altogether
Connect conducting wire and 64 signal input output interfaces.And utilize technical solution provided by the present invention, it is only necessary to which 8 along first party
It can be so that touch-control display panel to the first touch control electrode of extension and 8 second touch control electrodes extended in a second direction
Resolution ratio reaches 64.Correspondingly, in this case, needing 16 connecting wires and 16 signal input output interfaces altogether.
The embodiment of the present invention is N number of along first party by the way that the touch control electrode arranged in the prior art by matrix-style to be optimized for
The second touch control electrode extended in a second direction to the first touch control electrode and M of extension, effectively reduces the number of touch control electrode
Mesh solves connecting wire and the signal for due to touch control electrode Numerous, causing to be connected with touch control electrode in the prior art
Input/output interface Numerous, the problem that touch-control display panel manufacturing cost is high, product yield is low realize effectively reduction and touch
The quantity of connecting wire and information input output interface in display panel is controlled, cost of manufacture is reduced, improves the purpose of product yield.
Fig. 3 is the structural schematic diagram of another touch-control display panel provided in an embodiment of the present invention.Fig. 4 is Fig. 3 along A1-A2
Sectional view.Compared with the touch-control display panel provided in Fig. 1, touch-control display panel is embodied as liquid crystal display in Fig. 3
Panel, while first substrate is embodied as array substrate.The structure of the touch-control display panel is said in conjunction with Fig. 3 and Fig. 4
It is bright.The touch-control display panel includes first substrate 1, second substrate 2, the first touch control electrode layer 10 and second touch control electrode layer 20,
First touch control electrode layer 10 and 20 insulation set of second touch control electrode layer, and first substrate 1 is array substrate, the first touch control electrode
The side towards second substrate 2 is arranged in array substrate (i.e. first substrate 1) in layer 10, and the first touch control electrode layer 10 includes N number of
The first touch control electrode 11 extended along first direction 111, second touch control electrode layer 20 include M 211 extensions in a second direction
Second touch control electrode 21, first direction 111 and second direction 211 are intersected, and N, M are positive integer, and in the touch-control period, first touches
Control electrode 11 and second touch control electrode 21 receive touch control detection signal simultaneously.
In the technical solution that the present embodiment is provided, by regarding array substrate as first substrate, by the first touch-control electricity
The side towards second substrate is arranged in array substrate in pole layer, can effectively reduce the thickness of liquid crystal display panel.
On this basis, it is contemplated that common electrode layer is often provided in array substrate, in order to further decrease liquid crystal
Show the thickness of panel, preferably, the first touch control electrode layer 10 is multiplexed with common electrode layer.It should be noted that for this implementation
The touch-control display panel that example is provided touches with needing timesharing in use to constitute the first touch control electrode layer 10 each first
It controls electrode 11 and applies public voltage signal and touch-control drive signal.Specifically, display the period, by with the first touch control electrode 11
The driving chip of electrical connection applies public voltage signal in each first touch control electrode 11 for constituting the first touch control electrode layer 10, the
One touch control electrode 11 plays the role of public electrode, for controlling the overturning of liquid crystal 3 together with pixel electrode；In the touch-control period,
It is inputted and is touched simultaneously to the first touch control electrode 11 and second touch control electrode 21 from the driving chip being electrically connected with the first touch control electrode 11
Control detection signal, and the touch control detection change amount signal exported by the first touch control electrode 11 and second touch control electrode 21, determine
Position of touch information.
It should be noted that in the touch-control display panel that Fig. 3 is provided, illustratively second touch control electrode layer 20 is set
It being placed on the second substrate 2 being oppositely arranged with array substrate (i.e. first substrate 1), this is only the specific example of the present invention, rather than
Limitation of the present invention.In specific design, second substrate can be color membrane substrates, or other glass in display panel
Glass substrate.If second substrate 2 is color membrane substrates, as shown in figure 3, second touch control electrode layer 20 can be arranged in color membrane substrates (the
Two substrates 2) on the side towards array substrate (first substrate 1).Further, in 10 multiplexed arrays base of the first touch control electrode layer
On the basis of common electrode layer on plate, second touch control electrode layer 20 can be arranged in array substrate 1, and and common electrode layer
It is arranged in different film layers.
The embodiment of the present invention additionally provides a kind of touch control display apparatus.Fig. 5 is touched by one kind that the embodiment of the present invention provides
Control display device.As shown in figure 5, the touch control display apparatus includes, any touch-control provided in above-mentioned technical proposal of the present invention is aobvious
Show panel 4 and driving chip 5, wherein N number of first touch control electrode 11 and M second touch control electrode 21 with driving core
Piece 5 is electrically connected.Further, N number of first touch control electrode 11 and M second touch control electrode 21 pass through connecting wire 6 and drive
Signal input output interface 7 on dynamic chip 5 is electrically connected.
The touch-control display panel that the embodiment of the present invention is provided passes through the touch-control that will be arranged in the prior art by matrix-style
Electrode optimization is N number of the first touch control electrode extended in a first direction and the M second touch control electrodes extended in a second direction, is had
Effect reduces the number of touch control electrode, solves in the prior art due to touch control electrode Numerous, causes and touch control electrode phase
The connecting wire and signal input output interface Numerous of connection, touch-control display panel manufacturing cost is high, product yield is low
Problem, realizes the quantity of connecting wire and information input output interface in effectively reduction touch-control display panel, and is conducive to drop
Low cost of manufacture improves the purpose of product yield.
The embodiment of the present invention additionally provides a kind of touch control detecting method.Before being specifically described this touch control detecting method, need
Illustrate, the touch-control display panel provided for the above embodiment of the present invention, can be by work in the specific course of work
It is divided into touch-control period and display period as the period.The touch-control period refers to, driving chip is to the first touch control electrode and
Two touch control electrodes send the period of touch control detection signal.The display period refers to each display of the driving chip to participation display
Area pixel unit inputs the period of display drive signals.If the multiplexing of the first touch control electrode is public especially in touch control display apparatus
Common electrode then needs to send touch control detection signal and public to the first touch control electrode respectively in touch-control period and display period
Voltage.In addition, specifically, the above-mentioned touch-control period can be located at display during show two adjacent images frame time interval
It is interior, or in the display time of one picture frame of display.
Fig. 6 is a kind of flow chart for touch control detecting method that the embodiment of the present invention is provided.The touch control detecting method includes：
S610, in the touch-control period, driving chip is sent to N number of first touch control electrode and M second touch control electrode simultaneously
Touch control detection signal.
S620, the driving chip detect the touch-control inspection of N number of first touch control electrode and the M second touch control electrode
Change amount signal is surveyed, and according to the touch control detection signal intensity of N number of first touch control electrode and the M second touch control electrode
Amount determines position of touch.
Fig. 7 a- Fig. 7 d are true according to the touch control detection change amount signal of N number of first touch control electrode and M second touch control electrode
Determine the schematic diagram of position of touch.With reference to Fig. 7 a- Fig. 7 d to according to N number of first touch control electrode and M second touch control electrode
Touch control detection change amount signal determines that the concrete methods of realizing of position of touch is described in detail.
Before the determination method that position of touch is described in detail, it is assumed that the direct-to-ground capacitance of each first touch control electrode is equal
For the first capacitance C1, the direct-to-ground capacitance of each second touch control electrode is the second capacitance C2 and any one first is touched
It is C3 to control the relative capacity between electrode and any one second touch control electrode.
Within the touch-control period, when finger touches touch-control display panel, finger touch position i.e. position of touch can be caused
Touch control detection signal changes in neighbouring first touch control electrode and second touch control electrode.According to the difference of user's touch manner,
It is primarily present following four situation：
Situation one, if detect the first touch control detection change amount signal in first touch control electrode, and at one
The second touch control detection change amount signal is detected in two touch control electrodes, then one first touch control electrode and second touch-control
The crosspoint of electrode is position of touch.Illustratively, as shown in Figure 7a, corresponding with location A when user only touches location A
The touch control detection signal of the two electrodes of first touch control electrode 11-2 and second touch control electrode 21-2 can change.For
One touch control electrode 11-2, when touch control detection change amount signal (i.e. the first touch control detection change amount signal) is mainly derived from touch-control
The change amount signal Δ V (C1) caused by the C1 and change amount signal Δ V (C3) caused by C3.Therefore, the first touch control detection
Change amount signal is Δ V1=Δs V (C1)+Δ V (C3).For second touch control electrode 21-2, touch control detection change amount signal
The change amount signal Δ V (C2) caused by C2 and by C3 when (i.e. the second touch control detection change amount signal) is mainly derived from touch-control
Caused change amount signal Δ V (C3).Therefore, the second touch control detection change amount signal is Δ V2=Δs V (C2)+Δ V (C3).
Situation two, if detect third touch control detection change amount signal in first touch control electrode, and at two
The second touch control detection change amount signal is detected in two touch control electrodes, then one first touch control electrode and two the second touch-controls
Two crosspoints of electrode are position of touch.Illustratively, as shown in Figure 7b, when user touches B location and location of C simultaneously
When, first touch control electrode 11-2 corresponding with B location and location of C, second touch control electrode 21-2 and second touch control electrode 21-3
The touch control detection signal of these three electrodes can change.For the first touch control electrode 11-2, touched there are two position,
The signal caused by C1 becomes when touch control detection change amount signal (i.e. third touch control detection change amount signal) is mainly derived from touch-control
Change amount 2 Δ V (C1) and the 2 Δ V (C3) of change amount signal caused by C3.Therefore, third touch control detection change amount signal is Δ
+ 2 Δ V (C3) of V3=2 Δs V (C1).For second touch control electrode 21-2 (or second touch control electrode 21-3), touch control detection signal
When variable quantity (i.e. the second touch control detection change amount signal) is mainly derived from touch-control the change amount signal Δ V (C2) caused by C2 with
And the change amount signal Δ V (C3) caused by C3.Therefore, the second touch control detection change amount signal is Δ V2=Δs V (C2)+Δ V
(C3)。
Situation three, if detect the 4th touch control detection change amount signal in a second touch control electrode, and at two
The first touch control detection change amount signal is detected in one touch control electrode, then one second touch control electrode and two the first touch-controls
Two crosspoints of electrode are position of touch.Similarly, as shown in Figure 7 c, when user touches the positions D and the positions E simultaneously,
First touch control electrode 11-2 corresponding with the positions D and the positions E, the first touch control electrode 11-3 and second touch control electrode 21-2 this three
The touch control detection signal of a electrode can change.Specifically, it for second touch control electrode 21-2, is touched there are two position
It touches, touch control detection change amount signal (i.e. the 4th touch control detection change amount signal) is believed when being mainly derived from touch-control caused by C2
Number variable quantity 2 Δ V (C2) and the 2 Δ V (C3) of change amount signal caused by C3.Therefore, the 4th touch control detection change amount signal
For+2 Δ V (C3) of Δ V4=2 Δs V (C2).For the first touch control electrode 11-2 (or first touch control electrode 11-3), touch control detection
The change amount signal Δ V caused by C1 when change amount signal (i.e. the first touch control detection change amount signal) is mainly derived from touch-control
(C1) and the change amount signal Δ V (C3) caused by C3.Therefore, the first touch control detection change amount signal is Δ V1=Δs V
(C1)+ΔV(C3)。
Situation four, if detect the first touch control detection change amount signal in two the first touch control electrodes, and at two
The second touch control detection change amount signal is detected in two touch control electrodes.
For example, as shown in figure 7d, when user touches the positions F and the positions G simultaneously, with the positions F and the positions G corresponding first
This four electrodes of touch control electrode 11-2, the first touch control electrode 11-3, second touch control electrode 21-2 and second touch control electrode 21-4
Touch control detection signal can change.Specifically, for the first touch control electrode 11-2 (or first touch control electrode 11-3),
The signal caused by C1 becomes when touch control detection change amount signal (i.e. the first touch control detection change amount signal) is mainly derived from touch-control
Change amount Δ V (C1) and the change amount signal Δ V (C3) caused by C3.Therefore, the first touch control electrode 11-2 (or the first touch-control electricity
Pole 11-3) on the first touch control detection change amount signal be Δ V1=Δs V (C1)+Δ V (C3).For second touch control electrode 21-2
(or second touch control electrode 21-4), touch control detection change amount signal (i.e. the second touch control detection change amount signal) are mainly derived from
The change amount signal Δ V (C2) caused by the C2 and change amount signal Δ V (C3) caused by C3 when touch-control.Therefore, it second touches
It is Δ V2=Δs V (C2)+Δ V to control the second touch control detection change amount signal on electrode 21-2 (or second touch control electrode 21-4)
(C3).It is equal in magnitude due to the touching signals variable quantity on the first touch control electrode 11-2 and the first touch control electrode 11-3 in this way,
Touching signals variable quantity on second touch control electrode 21-2 and second touch control electrode 21-4 it is equal in magnitude, can not determine specific touch
It is the positions F and the positions G or the positions H and the positions I to control position.In this case, need driving chip simultaneously to two first
Touch control electrode and two second touch control electrodes send the second touch control detection signals, and according to two the first touch control electrodes and two the
The touching signals variable quantity of two touch control electrodes determines position of touch.
Specifically, with the first touch control electrode 11-2 for first the first touch control electrode, with the first touch control electrode 11-3 for the
Two the first touch control electrodes, with second touch control electrode 21-2 be first second touch control electrode, be with second touch control electrode 21-4
Second second touch control electrode, will be in first the first touch control electrode and two second touch control electrodes in two the first touch control electrodes
The electrical connection of first second touch control electrode, and sent simultaneously to two the first touch control electrodes and two second touch control electrodes again
Touch control detection signal, if from first the first touch control electrode and two second touch control electrodes in two the first touch control electrodes
One second touch control electrode detects the 5th touching signals variation delta V5=Δs V (C1)+Δ V (C2), then two the first touch-controls
The crosspoint of first the first touch control electrode and first second touch control electrode in two second touch control electrodes in electrode, and
Second second touch control electrode in two the first touch control electrodes in second the first touch control electrode and two second touch control electrodes
Crosspoint be position of touch, and if first the first touch control electrode and two the second touch-controls from two the first touch control electrodes
First second touch control electrode in electrode detects the 6th touching signals variation delta V6=Δs V (C1)++ 2 Δ V of Δ V (C2)
(C3), then second second in two the first touch control electrodes in first the first touch control electrode and two second touch control electrodes touches
In the crosspoint of control electrode and two the first touch control electrodes in second the first touch control electrode and two second touch control electrodes
The crosspoint of first second touch control electrode is position of touch；
In addition to aforesaid way, second the first touch control electrode in two the first touch control electrodes and two second can also be touched
Second second touch control electrode electrical connection in electrode is controlled, and again simultaneously to two the first touch control electrodes and two the second touch-controls
Electrode sends touch control detection signal, if second the first touch control electrode and two the second touch-control electricity from two the first touch control electrodes
Second second touch control electrode in extremely detects the 5th touching signals variation delta V5=Δs V (C1)+Δ V (C2), then two
The friendship of first the first touch control electrode and first second touch control electrode in two second touch control electrodes in first touch control electrode
Second second in crunode and two the first touch control electrodes in second the first touch control electrode and two second touch control electrodes
The crosspoint of touch control electrode is position of touch, and if second the first touch control electrode and two from two the first touch control electrodes
Second second touch control electrode in second touch control electrode detects the 6th touching signals variation delta V6=Δs V (C1)+Δ V
(C2)+2 Δ V (C3), then in two the first touch control electrodes in first the first touch control electrode and two second touch control electrodes
Second the first touch control electrode and two second touch in the crosspoint of two second touch control electrodes and two the first touch control electrodes
The crosspoint for controlling first second touch control electrode in electrode is position of touch.
Further, it is also possible to by first the first touch control electrode and two second touch control electrodes in two the first touch control electrodes
The electrical connection of first second touch control electrode, while by second the first touch control electrode in two the first touch control electrodes and two the
Second second touch control electrode electrical connection in two touch control electrodes, and again simultaneously to two the first touch control electrodes and two second
Touch control electrode sends touch control detection signal.If being detected simultaneously by from the two first touch control electrodes and two second touch control electrodes
5th touching signals variation delta V5=Δs V (C1)+Δ V (C2), then first the first touch-control is electric in two the first touch control electrodes
Second in the crosspoint of first second touch control electrode in pole and two second touch control electrodes and two the first touch control electrodes
The crosspoint of a first touch control electrode and second second touch control electrode in two second touch control electrodes is position of touch.If from
The 6th touching signals variation delta V6=Δs V is detected simultaneously by the two first touch control electrodes and two second touch control electrodes
(C1)++ 2 Δ V (C3) of Δ V (C2), then first the first touch control electrode and two the second touch-controls are electric in two the first touch control electrodes
Second the first touch control electrode and two in the crosspoint of second second touch control electrode in extremely and two the first touch control electrodes
The crosspoint of first second touch control electrode in a second touch control electrode is position of touch.
It should be noted that hereinbefore, illustratively with the first touch control electrode 11-2 for first the first touch control electrode,
It is first the second touch-control electricity with second touch control electrode 21-2 with the first touch control electrode 11-3 for second the first touch control electrode
Pole, with second touch control electrode 21-4 for second second touch control electrode, this is only that the embodiment of the present invention provided one is specific
Example rather than limitation of the present invention.Can be first the first touch-control electricity with the first touch control electrode 11-2 when specifically judging
Pole can also be first the with the first touch control electrode 11-3 with the first touch control electrode 11-3 for second the first touch control electrode
One touch control electrode, with the first touch control electrode 11-2 for second the first touch control electrode.It similarly, can be with second touch control electrode
21-2 is first second touch control electrode, can also be also with the with second touch control electrode 21-4 for second second touch control electrode
Two touch control electrode 21-4 are first second touch control electrode, with second touch control electrode 21-2 for second second touch control electrode.It changes
" first the first touch control electrode ", " second the first touch control electrode ", " first the second touch-control electricity is above utilized in Yan Zhi
Saying as pole " and " second second touch control electrode ", this inputs touch control detection signal merely to distinguishing in first time
Afterwards, changed two the first touch control electrodes of touch control detection signal and two second touch control electrodes.
With reference to Fig. 7 d, the is sent to two the first touch control electrodes and two second touch control electrodes simultaneously to driving chip
Two touch control detection signals, and determined and touched according to the touching signals variable quantity of two the first touch control electrodes and two second touch control electrodes
The realization method of control this process of position is described in detail.
First, optional first touch control electrode and the between the first touch control electrode 11-2 and the first touch control electrode 11-3
Any second touch control electrode electrical connection in two touch control electrode 21-2 and second touch control electrode 21-4.
Secondly, again simultaneously to the first touch control electrode 11-2, the first touch control electrode 11-3, second touch control electrode 21-2 and the
This four touch control electrodes of two touch control electrode 21-4 send touch control detection signal, and obtain respective touch-control in this four touch control electrodes
Change in detection signal amount.
Finally, position of touch is determined according to respective touch control detection change amount signal in this four touch control electrodes.
Illustratively, it is assumed that be electrically connected the first touch control electrode 11-2 with second touch control electrode 21-4, again simultaneously to the
This four touch-controls of one touch control electrode 11-2, the first touch control electrode 11-3, second touch control electrode 21-2 and second touch control electrode 21-4
Electrode sends touch control detection signal, and the touch control detection signal for obtaining the first touch control electrode 11-2 and second touch control electrode 21-4 becomes
Change amount, there are two kinds of situations for the touch control detection change amount signal of general first touch control electrode 11-2 and second touch control electrode 21-4：
First, if the touch control detection change amount signal of the first touch control electrode 11-2 and second touch control electrode 21-4 is the 5th touching signals
Variation delta V5=Δs V (C1)+Δ V (C2), then the crosspoint of the first touch control electrode 11-2 and second touch control electrode 21-4 is tactile
The crosspoint for controlling position and the first touch control electrode 11-3 and second touch control electrode 21-2 is position of touch.Second, if first touches
The touch control detection change amount signal for controlling electrode 11-2 and second touch control electrode 21-4 is the 6th touching signals variation delta V6=
+ 2 Δ V (C3) of Δ V (C1)+Δ V (C2), then the crosspoint of the first touch control electrode 11-2 and second touch control electrode 21-2 is touch-control position
It sets and the crosspoint of the first touch control electrode 11-3 and second touch control electrode 21-4 is position of touch.
Above-mentioned touch control detecting method can be used to identify the optional touch display surface that user is provided through the embodiment of the present invention
The position of touch of plate input, and to play its due for the optional touch display panel that the embodiment of the present invention can be helped to be provided
Advantageous effect.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (14)
1. a kind of touch-control display panel, which is characterized in that including first substrate, second substrate, the first touch control electrode layer and second
Touch control electrode layer, first touch control electrode layer and the second touch control electrode layer insulation set, and first touch control electrode
Layer is arranged on the first substrate or the second substrate, and the second touch control electrode layer is arranged in the first substrate or institute
It states on second substrate；
First touch control electrode layer includes N number of the first touch control electrode extended in a first direction, the second touch control electrode layer
The second touch control electrode extended in a second direction including M, the first direction and the second direction are intersected, and N, M are just
Integer, in the touch-control period, first touch control electrode and the second touch control electrode receive touch control detection signal simultaneously；
The direct-to-ground capacitance of each first touch control electrode is the first capacitance, each second touch control electrode is over the ground
Capacitance is the second capacitanceAnd it is opposite between any one first touch control electrode and any one second touch control electrode
Capacitance is；
If detecting the first touch control detection change amount signal in first touch control electrode, and in a second touch control electrode
Detect the second touch control detection change amount signal, then the crosspoint of one first touch control electrode and a second touch control electrode
For position of touch；Alternatively,
If detecting third touch control detection change amount signal in first touch control electrode, and in two second touch control electrodes
Detect the second touch control detection change amount signal, then two friendships of one first touch control electrode and two second touch control electrodes
Crunode is position of touch；Alternatively,
If detecting the 4th touch control detection change amount signal in a second touch control electrode, and in two the first touch control electrodes
Detect the first touch control detection change amount signal, then two friendships of one second touch control electrode and two the first touch control electrodes
Crunode is position of touch；
Wherein, the first touch control detection change amount signal is, second touch-control
Change in detection signal amount is, the third touch control detection change amount signal is, the 4th touch control detection change amount signal is,For touch-control whenCaused semaphore variation,For touch-control whenCaused semaphore variation,For touch-control whenCaused semaphore variation.
2. touch-control display panel according to claim 1, which is characterized in that first touch control electrode be regular pattern or
Irregular pattern, the second touch control electrode are regular pattern or irregular pattern.
3. touch-control display panel according to claim 1, which is characterized in that first touch control electrode is in the first party
To the ratio of the first width and adjacent two first touch control electrodes the first spacing in said first direction be less than
5:1 and second width and adjacent two second touch control electrodes of the second touch control electrode in the second direction
The ratio of the second spacing in this second direction is less than 5:1.
4. touch-control display panel according to claim 3, which is characterized in that if the second touch control electrode layer is positioned at described
Above first touch control electrode layer, then the width of the second touch control electrode in this second direction is less than first touch-control electricity
The width of pole in a first direction.
5. touch-control display panel according to claim 4, which is characterized in that the second touch control electrode is tin indium oxide material
Material is made or the second touch control electrode is metal wire.
6. touch-control display panel according to claim 1, which is characterized in that the first capacitance C1 and second capacitance
The value of C2 is identical.
7. touch-control display panel according to claim 1, which is characterized in that the first direction is pressed from both sides with the second direction
Angle is 90 degree.
8. according to any touch-control display panels of claim 1-7, which is characterized in that the first substrate is array base
The side towards the second substrate in the array substrate is arranged in plate, first touch control electrode layer.
9. touch-control display panel according to claim 8, which is characterized in that first touch control electrode layer is multiplexed with public
Electrode layer.
10. touch-control display panel according to claim 9, which is characterized in that the second touch control electrode layer is arranged in institute
It states in array substrate, and is arranged in different film layers from the common electrode layer.
11. touch-control display panel according to claim 9, which is characterized in that the second substrate is color membrane substrates, described
The side towards the array substrate on the color membrane substrates is arranged in second touch control electrode layer.
12. a kind of touch control display apparatus, which is characterized in that including any touch-control display panels of claim 1-11, with
And driving chip, wherein N number of first touch control electrode and the M second touch control electrodes are electric with the driving chip
Connection.
13. a kind of touch control detecting method based on the touch control display apparatus described in claim 12, which is characterized in that the touch-control
The working time section of display device is divided into touch-control period and display period, within the touch-control period, the driving core
Piece sends touch control detection signal to N number of first touch control electrode and M second touch control electrode simultaneously, and is touched according to described N number of first
Control electrode and the touch control detection change amount signal of the M second touch control electrode determine position of touch；
The direct-to-ground capacitance of each first touch control electrode is the first capacitance, each second touch control electrode is over the ground
Capacitance is the second capacitanceAnd it is opposite between any one first touch control electrode and any one second touch control electrode
Capacitance isWhen, it is described to be become according to the touch control detection signal of N number of first touch control electrode and the M second touch control electrode
Change amount determines position of touch, including：
If detecting the first touch control detection change amount signal in first touch control electrode, and in a second touch control electrode
Detect the second touch control detection change amount signal, then the crosspoint of one first touch control electrode and a second touch control electrode
For position of touch；Alternatively,
If detecting third touch control detection change amount signal in first touch control electrode, and in two second touch control electrodes
Detect the second touch control detection change amount signal, then two friendships of one first touch control electrode and two second touch control electrodes
Crunode is position of touch；Alternatively,
If detecting the 4th touch control detection change amount signal in a second touch control electrode, and in two the first touch control electrodes
Detect the first touch control detection change amount signal, then two friendships of one second touch control electrode and two the first touch control electrodes
Crunode is position of touch；
Wherein, the first touch control detection change amount signal is, the second touch control detection letter
Number variable quantity is, the third touch control detection change amount signal is, the 4th touch control detection change amount signal is
,For touch-control whenCaused semaphore variation,For touch-control whenCaused semaphore variation,
For touch-control whenCaused semaphore variation.
14. touch control detecting method according to claim 13, which is characterized in that if being detected in two the first touch control electrodes
First touch control detection change amount signal, and at two second
The second touch control detection change amount signal is detected in touch control electrode,
Then by first in first the first touch control electrode and described two second touch control electrodes in described two first touch control electrodes
Second touch control electrode is electrically connected, and is sent simultaneously to described two first touch control electrodes and described two second touch control electrodes again
Touch control detection signal, if first the first touch control electrode and described two second touch-controls electricity from described two first touch control electrodes
First second touch control electrode in extremely detects the 5th touch control detection change amount signal
, then first in described two first touch control electrodes in first the first touch control electrode and described two second touch control electrodes
Second the first touch control electrode and described two second in the crosspoint of two touch control electrodes and described two first touch control electrodes
The crosspoint of second second touch control electrode in touch control electrode is position of touch, and if from described two first touch control electrodes
In first second touch control electrode in first the first touch control electrode and described two second touch control electrodes detect that the 6th touches
Control change in detection signal amount, then described two first touch control electrodes
In first the first touch control electrode and second second touch control electrode in described two second touch control electrodes crosspoint, and
First second in described two first touch control electrodes in second the first touch control electrode and described two second touch control electrodes
The crosspoint of touch control electrode is position of touch；
And/or
By second in second the first touch control electrode and described two second touch control electrodes in described two first touch control electrodes
A second touch control electrode electrical connection, and sent out simultaneously to described two first touch control electrodes and described two second touch control electrodes again
Touch control detection signal is sent, if second the first touch control electrode and described two second touch-controls from described two first touch control electrodes
Second second touch control electrode in electrode detects the 5th touch control detection change amount signal
, then first in described two first touch control electrodes in first the first touch control electrode and described two second touch control electrodes
Second the first touch control electrode and described two second in the crosspoint of two touch control electrodes and described two first touch control electrodes
The crosspoint of second second touch control electrode in touch control electrode is position of touch, and if from described two first touch control electrodes
In second second touch control electrode in second the first touch control electrode and described two second touch control electrodes detect that the 6th touches
Control change in detection signal amount, then in described two first touch control electrodes
The crosspoint of second second touch control electrode in first the first touch control electrode and described two second touch control electrodes, Yi Jisuo
First second in two the first touch control electrodes in second the first touch control electrode and described two second touch control electrodes is stated to touch
The crosspoint for controlling electrode is position of touch.
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| CN106249963B (en) | 2016-09-29 | 2019-02-12 | 京东方科技集团股份有限公司 | Touch electrode structure and touch-control display panel |
| CN106527794B (en) * | 2016-10-25 | 2019-09-17 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN107037906B (en) * | 2016-10-25 | 2019-11-12 | 上海天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN108509097B (en) * | 2018-03-01 | 2021-07-30 | 上海天马微电子有限公司 | Touch display panel and touch display device |
| CN111078054B (en) * | 2019-12-20 | 2023-07-07 | 京东方科技集团股份有限公司 | Touch detection device, control method thereof and display module |
| CN111596794A (en) * | 2020-05-13 | 2020-08-28 | 深圳市华星光电半导体显示技术有限公司 | Touch display panel and display device |
| CN112631457A (en) * | 2020-12-21 | 2021-04-09 | 厦门天马微电子有限公司 | Display panel and display device |
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