CN106990869A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN106990869A CN106990869A CN201710225270.6A CN201710225270A CN106990869A CN 106990869 A CN106990869 A CN 106990869A CN 201710225270 A CN201710225270 A CN 201710225270A CN 106990869 A CN106990869 A CN 106990869A
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- touch
- driving electrodes
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- 239000010409 thin film Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 18
- 230000005611 electricity Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000035772 mutation Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 210000002858 crystal cell Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
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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
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The application discloses a touch display panel and a touch display device. The touch display panel comprises a touch driving electrode array, a fan-out area, a plurality of touch driving electrode wires and a plurality of resistance compensation units; the resistance compensation unit is positioned on one side of the fan-out area far away from the display area; the fan-out region comprises a plurality of fan-out leads; the touch driving electrode wires connected with the same touch driving electrode are electrically connected to the same fan-out lead; in the touch driving electrode array, fan-out leads connected with the touch driving electrodes with a larger number and connected with the touch driving electrode wires are electrically connected with the resistance compensation unit. According to the scheme of this application, through carrying out resistance compensation to the more touch-control drive electrode of the quantity of connecting touch-control drive electrode line, eliminate between two adjacent touch-control drive electrodes because walk the resistance sudden change that line quantity difference and cause to avoid producing and show the horizontal line.
Description
Technical field
Present application relates generally to display technology field, more particularly to a kind of touch-control display panel and touch control display apparatus.
Background technology
With the development of Display Technique, touch-control display panel is provided simultaneously with showing and perceives the function of touch-control input.According to
Its architectural difference, touch-control display panel, which can be divided into touch control electrode and be covered in liquid crystal cell above formula (on-cell), touch control electrode, to be embedded in
Formula (in-cell) and external hanging type in liquid crystal cell.Wherein, in-cell formulas touch-control display panel has low, the frivolous and narrow side of cost
The advantage of frame, the future thrust of integrated technique is shown as touch-control.
Layer of transparent electrode in panel is generally multiplexed with touch-control and driven by the in-cell formulas touch-control display panel of prior art
Moving electrode, for example, common electrode layer is formed as to include the touch-control driving electrode array of multirow electrode block and plural electrode array block, often
Individual touch-control driving electrodes are connected to touch-control driving chip by respective cabling.
Because each touch-control driving electrodes are different from the distance of touch-control driving chip, touch-control more remote apart from touch-control driving chip
The resistance of cabling between driving electrodes and touch-control driving chip is bigger.For the cabling of the touch-control driving electrodes that reduce distal end
Resistance, it usually needs a plurality of cabling in parallel.For example, for same row touch-control driving electrodes, it is nearer apart from touch-control driving chip
Multiple touch-control driving electrodes can only need a cabling, then be needed apart from the multiple touch-control driving electrodes of touch-control driving chip farther out
Connect two or more cablings.
However, when the cabling quantity that two adjacent touch-control driving electrodes (in same row) connect is different (for example, one
Individual touch-control driving electrodes connect a cabling, and another touch-control driving electrodes connects two cablings), its cabling resistance will be sent out
Raw saltus step (for example, being mutated from 5.8k Ω to 3.4k Ω), public voltage signal is provided to each touch-control drive electricity during showing
During pole, because the bulletin voltage signal that cabling resistance is mutated on the electrode block for causing not go together also produces mutation, cause display horizontal
Line.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of touch-control display panel and touch-control display dress
Put, to solve technical problem present in prior art.
According to the one side of the application there is provided a kind of touch-control display panel, including it is arranged on the fan of non-display area
Go out region and multiple resnstance transformer units and be arranged on the touch-control driving electrode array and a plurality of touch-control driving electricity of viewing area
Polar curve, non-display area surrounds viewing area, and resnstance transformer unit is located at side of the fan-out area away from viewing area；Fanout area
Domain is fanned out to lead including a plurality of, for receiving touch-control drive signal；Touch-control driving electrode array includes multirow touch-control driving electrodes
With multiple row touch-control driving electrodes, each touch-control driving electrodes are electrically connected with least one touch-control driving electrodes line, are touched with same
Each touch-control driving electrodes line of control driving electrodes connection is electrically connected to same and is fanned out to lead；Wherein, driven in same row touch-control
In electrode, there are the first touch-control driving electrodes and the second touch-control driving electrodes, the touch-control driving of the second touch-control driving electrodes connection
The quantity of electrode wires is more than the quantity for the touch-control driving electrodes line that the first touch-control driving electrodes are connected；Second touch-control driving electrodes connect
The lead that is fanned out to connect is electrically connected with resnstance transformer unit.
In certain embodiments, in same row touch-control driving electrodes, also in the presence of the 3rd touch-control driving electrodes, the 3rd touch-control
The quantity of the touch-control driving electrodes line of driving electrodes connection is more than the touch-control driving electrodes line that the second touch-control driving electrodes are connected
Quantity；The lead that is fanned out to of 3rd touch-control driving electrodes connection is electrically connected with resnstance transformer unit.
In certain embodiments, the first touch-control driving electrodes are located at one end close to fan-out area, second in viewing area
Touch-control driving electrodes are located at one end away from fan-out area in viewing area.
In certain embodiments, the first touch-control driving electrodes are located at one end close to fan-out area, the 3rd in viewing area
Touch-control driving electrodes are located at one end away from fan-out area in viewing area, and the second touch-control driving electrodes drive positioned at the first touch-control
Between electrode and the 3rd touch-control driving electrodes.
In certain embodiments, touch-control display panel also includes the driving chip for being arranged on non-display area, resnstance transformer
Unit is arranged in driving chip, and driving chip includes compensation lead-out terminal；Compensation lead-out terminal is connected to resnstance transformer unit
And connected be fanned out between lead.
In certain embodiments, resnstance transformer unit includes compensation input, compensation output end and switch resistance pair, switch
Resistance is to including compensation resistance and compensating switch, for compensation resistance to be linked between compensation input and compensation output end.
In certain embodiments, resnstance transformer unit includes at least one first switch resistance pair；First switch resistance pair
Including the first compensation resistance connected with parallel way and the first compensating switch, the first compensation resistance when the first compensating switch is turned off
It is linked between compensation input and compensation output end；Each first switch resistance to being connected to compensation input in a series arrangement
Between compensation output end.
In certain embodiments, resnstance transformer unit includes at least two second switch resistance pair；Second switch resistance pair
Including the second compensation resistance connected in a series arrangement and the second compensating switch, the second compensation resistance when the second compensating switch is turned on
It is linked between compensation input and compensation output end；Each second switch resistance with parallel way to being connected to compensation input
Between compensation output end.
In certain embodiments, resnstance transformer unit is opened including at least one first switch resistance pair and at least two second
Powered-down resistance pair；First switch resistance is to the first compensation resistance and the first compensating switch including being connected with parallel way, and first mends
The first compensation resistance is linked between compensation input and compensation output end when repaying switch OFF；Second switch resistance to including
The the second compensation resistance connected in a series arrangement and the second compensating switch, the second compensation resistance is connect when the second compensating switch is turned on
Enter between compensation input and compensation output end；Between compensation input and compensation output end, each first switch resistance pair
Connect in a series arrangement, each second switch resistance with parallel way to being connected, first switch resistance pair and second switch resistance pair
Connect in a series arrangement.
In certain embodiments, compensating switch is thin film transistor (TFT).
In certain embodiments, the control end of each thin film transistor (TFT) is controlled by different compensating control signals.
In certain embodiments, touch-control display panel also includes public electrode, and public electrode is multiplexed with touch-control driving electrodes.
A kind of touch control display apparatus, including touch-control display panel as above are additionally provided according to the another aspect of the application.
Touch-control display panel and touch control display apparatus that the application is provided, pass through the quantity to connecting touch-control driving electrodes line
More touch-control driving electrodes are carried out between resnstance transformer, two adjacent touch-control driving electrodes of elimination because cabling quantity is different
And the resistance mutation caused so that the resistance between each touch-control driving electrodes changes in desired extent, shows so as to avoid producing
Show band.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 shows the schematic diagram of one embodiment of the touch-control display panel of the application；
Fig. 2A shows the schematic diagram of an example of the resnstance transformer unit of one embodiment of the application；
Fig. 2 B show the circuit diagram of the switch resistance pair in Fig. 2A；
Fig. 3 A show the schematic diagram of another example of the resnstance transformer unit of one embodiment of the application；
Fig. 3 B show the circuit diagram of the switch resistance pair in Fig. 3 A；
The schematic diagram of the another example of the resnstance transformer unit of one embodiment of Fig. 4 the application；
Fig. 5 A and Fig. 5 B show touch-control driving electrode array each touch-control driving before and after resnstance transformer of different resolution
The schematic diagram of total resistance on electrode；
Fig. 6 A and Fig. 6 B show the circuit diagram of resnstance transformer unit；
Fig. 7 shows the schematic diagram of another embodiment of the touch-control display panel of the application；
Fig. 8 shows the schematic diagram of one embodiment of the touch-control display panel of the application；
Fig. 9 shows the schematic diagram of one embodiment of the touch control display apparatus of the application.
Embodiment
The application 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 related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to illustrate only the part related to invention in description, accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows the schematic diagram of one embodiment of the touch-control display panel of the application.
As shown in figure 1, touch-control display panel may include the touch-control driving electrode array TX for being arranged on viewing area 111,1~
TXm,nWith a plurality of touch-control driving electrodes line TXL and it is arranged on the fan-out area 13 of non-display area 12 and multiple resnstance transformer lists
Member 15.Wherein, non-display area 12 can surround viewing area 11, and resnstance transformer unit 15 can be located at fan-out area 13 away from display
The side in region 11.Here, m, n are the integer more than 1.
Fan-out area 13 may include it is a plurality of be fanned out to lead 14, for receiving touch-control drive signal.
Touch-control driving electrode array TX1,1~TXm,nIt may include the m rows touch-control driving electrodes that D2 is arranged in a second direction and n
The row touch-control driving electrodes that D1 is arranged in the first direction, first direction D1 and second direction D2 intersect each other.Each touch-control driving
Electrode can be electrically connected with least one touch-control driving electrodes line TXL, and each touch-control electrically connected with same touch-control driving electrodes drives
Moving electrode line TXL may be electrically connected to same and be fanned out to lead 14.
For example, touch-control driving electrodes TX1,nIt can be electrically connected with a touch-control driving electrodes line TXL, the touch-control driving electrodes line
Electrically connected with being fanned out to lead 14；Touch-control driving electrodes TXm,nIt can be electrically connected with three touch-control driving electrodes line TXL, three touch-controls
Driving electrodes line TXL is fanned out to lead 14 with same and electrically connected.
In same row touch-control driving electrodes, there are the first touch-control driving electrodes and the second touch-control driving electrodes, second touches
The quantity for controlling the touch-control driving electrodes line TXL of driving electrodes connection is more than the touch-control driving electrodes that the first touch-control driving electrodes are connected
Line TXL quantity.
By taking the n-th row touch-control driving electrodes as an example, touch-control driving electrodes TX1,n~TXa,nRespectively connect a touch-control driving electrodes
Line TXL, and touch-control driving electrodes TX(a+1),n~TXb,nTwo touch-control driving electrodes line TXL are respectively connected, then touch-control driving electrodes
TX1,n~TXa,nFor the first touch-control driving electrodes, touch-control driving electrodes TX(a+1),n~TXb,nFor the second touch-control driving electrodes.This
In, a, b are integer, and m >=b>a≥1.
Second touch-control driving electrodes are (for example, touch-control driving electrodes TX(a+1),n) connection be fanned out to lead 14 and resnstance transformer
Unit 15 is electrically connected.
In same row, in two adjacent the first touch-control driving electrodes, for example, the first touch-control driving electrodes TX(a-1),n
And TXa,nA touch-control driving electrodes line TXL is all connected with, due to the first touch-control driving electrodes TXa,nTo the distance of fan-out area 13
More than the first touch-control driving electrodes TX(a-1),nTo the distance of fan-out area 13, therefore, the first touch-control driving electrodes TXa,nOn walk
Line resistance Rl_aMore than the first touch-control driving electrodes TX(a-1),nOn cabling resistance Rl_(a-1), usual Rl_aWith Rl_(a-1)Difference does not surpass
Predetermined resistance is crossed, for example, 400 Ω (when the cabling resistance difference in two neighboring touch-control driving electrodes is no more than 400 Ω, one
As will not produce due to showing band caused by change in resistance).Similarly, in two adjacent the second touch-control driving electrodes,
For example, the second touch-control driving electrodes TX(a+1),nOn cabling resistance Rl_(a+1)With the second touch-control driving electrodes TX(a+2),nOn walk
Line resistance Rl_(a+2)Difference is no more than predetermined resistance.
However, in adjacent the first touch-control driving electrodes and the second touch-control driving electrodes, for example, the first touch-control driving electricity
Pole TXa,nWith the second touch-control driving electrodes TX(a+1),nIn, although the second touch-control driving electrodes TX(a+1),nTo fan-out area 13 away from
From more than the first touch-control driving electrodes TXa,nTo the distance of fan-out area 13, but due to the second touch-control driving electrodes TX(a+1),nWith
Two touch-control driving electrodes line TXL electrical connections in parallel, the second touch-control driving electrodes TX(a+1),nOn cabling resistance Rl_(a+1)With
First touch-control driving electrodes TXa,nOn cabling resistance Rl_aPredetermined resistance is differed by more than, for example, can even differ several kilohms.
That is, resistance is produced between the first touch-control driving electrodes and the second touch-control driving electrodes to be mutated and then cause to show band,
Therefore need to carry out resistance compensation to the second touch-control driving electrodes.And for the first touch-control driving electrodes non-conterminous
Two touch-control driving electrodes, for example, the second touch-control driving electrodes TX(a+2),n, when to the second touch-control driving electrodes TX(a+1),nMended
Repay (to eliminate the first touch-control driving electrodes TXa,nWith the second touch-control driving electrodes TX(a+1),nBetween resistance mutation) after, second
Touch-control driving electrodes TX(a+1),nAnd TX(a+2),nBetween the two resistance difference also above predetermined resistance, it is therefore desirable to pair with this first
The non-conterminous second touch-control driving electrodes of touch-control driving electrodes carry out resistance compensation.
In this case, by the way that each second touch-control driving electrodes are electrically connected with resnstance transformer unit 15 respectively, each
Total resistance in second touch-control driving electrodes is equal to the compensation resistance sum that cabling resistance is provided with resnstance transformer unit 15；And
Because the first touch-control driving electrodes are not connected with resnstance transformer unit 15, therefore total resistance in each first touch-control driving electrodes is still
For cabling resistance.
For example, the second touch-control driving electrodes TX(a+1),nOn total resistance Ra+1With the first touch-control driving electrodes TXa,nOn it is total
Resistance RaRespectively：
Ra+1=Rl_(a+1)+Rc_(a+1)；
Ra=Rl_a；
Wherein, Rc_(a+1)For with the second touch-control driving electrodes TX(a+1),nThe compensation that the resnstance transformer unit 15 of electrical connection is provided
The resistance of resistance.
Appropriate adjustment resnstance transformer unit 15 so that the second touch-control driving electrodes TX(a+1),nOn total resistance Ra+1With first
Touch-control driving electrodes TXa,nOn total resistance RaDifference is no more than predetermined resistance, and band is shown so as to avoid producing.
In the present embodiment, resnstance transformer is carried out to the second touch-control driving electrodes, the first touch-control driving electrodes and the is eliminated
Because the resistance that cabling quantity is different and causes is mutated between two touch-control driving electrodes so that the resistance between each touch-control driving electrodes
Value changes in desired extent, and band is shown so as to avoid producing.
Although fig 1 illustrate that the first touch-control driving electrodes connect a touch-control driving electrodes line TXL, the second touch-control driving electricity
Pole connects two touch-control driving electrodes line TXL, but this is only schematical.It is understood that the first touch-control driving electrodes
The touch-control driving electrodes line TXL of any suitable number can be connected with the second touch-control driving electrodes, as long as the second touch-control driving electricity
The touch-control driving electrodes line TXL of pole connection quantity is more than the touch-control driving electrodes line TXL's that the first touch-control driving electrodes are connected
Quantity, those skilled in the art can be configured according to the need for actual scene.
In addition, the shape of each touch-control driving electrodes can be rectangle or other suitable shapes, for example, rhombus,
Circle etc., the application is not limited this.
Alternatively, the first touch-control driving electrodes are located at one end close to fan-out area 13, the second touch-control in viewing area 12
Driving electrodes are located at one end away from fan-out area 13 in viewing area 12
Alternatively, in same row touch-control driving electrodes, also in the presence of the 3rd touch-control driving electrodes, the 3rd touch-control driving electrodes
The touch-control driving electrodes line TXL of connection quantity is more than the number for the touch-control driving electrodes line TXL that the second touch-control driving electrodes are connected
Amount.For example, in the n-th row touch-control driving electrodes, touch-control driving electrodes TX(b+1),n~TXm,nRespectively connect three touch-control driving electrodes
Line TXL, then touch-control driving electricity TX(b+1),n~TXm,nFor the 3rd touch-control driving electrodes.What the 3rd touch-control driving electrodes were connected is fanned out to
Lead 14 is electrically connected with resnstance transformer unit 15.Here, m>b.
Because the quantity of the touch-control driving electrodes line of connection is different, touched for the 3rd adjacent touch-control driving electrodes and second
The cabling resistance controlled in driving electrodes, the 3rd touch-control driving electrodes is differed by more than with the cabling resistance in the second touch-control driving electrodes
Predetermined resistance, it is necessary to which the resistance for the compensation resistance that the resnstance transformer unit 15 being connected with the 3rd touch-control driving electrodes is provided is more than
The resistance for the compensation resistance that the resnstance transformer unit 15 being connected with the second touch-control driving electrodes is provided so that the second touch-control driving electricity
Total resistance difference in total resistance and the 3rd touch-control driving electrodes on extremely is no more than predetermined resistance, so as to avoid producing display horizontal stroke
Line.
Alternatively, the first touch-control driving electrodes are located at one end close to fan-out area 13, the 3rd touch-control in viewing area 12
Driving electrodes are located at one end away from fan-out area 13 in viewing area 12, and the second touch-control driving electrodes drive positioned at the first touch-control
Between electrode and the 3rd touch-control driving electrodes.
Although illustrate only three kinds of touch-control driving electrodes in Fig. 1 (for example, the first touch-control driving electrodes TX1,n~TXa,n,
Two touch-control driving electrodes TX(a+1),n~TXb,nWith the 3rd touch-control driving electrodes TX(b+1),n~TXm,n), but this is only schematic
's.It is understood that touch-control driving electrode array may also include other touch-control driving electrodes, for example, the 4th touch-control driving electricity
Depending on pole etc., the quantity variance of the touch-control driving electrodes line connected here.
Resnstance transformer unit 15 can optionally provide different compensation resistance, i.e. drive electricity according to two adjacent touch-controls
The difference of the cabling resistance of touch-control driving electrodes line on extremely provides corresponding compensation resistance.
Alternatively, resnstance transformer unit 15 includes compensation input, compensation output end and switch resistance pair, switch resistance pair
Including compensation resistance and compensating switch, for compensation resistance to be linked between compensation input and compensation output end.
Wherein, compensation input is used to receive touch-control drive signal, and compensation output end is electrically connected with the corresponding lead 14 that is fanned out to
Connect, to realize the resnstance transformer in corresponding touch-control driving electrodes.
Alternatively, resnstance transformer unit 15 may include at least one first switch resistance to 31, each first switch resistance pair
31 are connected between compensation input RIN and compensation output end ROUT in a series arrangement, as shown in Figure 2 A.
First switch resistance may include the first compensation resistance R connected with parallel way to 31pWith the first compensating switch Tp,
First compensating switch TpFirst compensation resistance R during shut-offpIt is linked between compensation input RIN and compensation output end ROUT, such as
Shown in Fig. 2 B.
So, can be by controlling the first compensating switch TpState, to control series connection to be linked into compensation input RIN and benefit
Repay the first compensation resistance R between output end ROUTpNumber, so as to obtain required compensation resistance.
It should be noted that the resistance of each first compensation resistance can be with identical, and can also be different, the application is not limited.
Alternatively, resnstance transformer unit 15 may include at least two second switch resistance to 32, each second switch resistance pair
32 are connected between compensation input RIN and compensation output end ROUT with parallel way, as shown in Figure 3A.
Second switch resistance is to 32 the second compensation resistance R including connecting in a series arrangementqWith the second compensating switch Tq, the
Two compensating switch TqSecond compensation resistance R during conductingqIt is linked between compensation input RIN and compensation output end ROUT, such as schemes
Shown in 3B.
So, can be by controlling the second compensating switch TqState, to control to be coupled in parallel to compensation input RIN and benefit
Repay the second compensation resistance R between output end ROUTqNumber, so as to obtain required compensation resistance.
It should be noted that the resistance of each second compensation resistance can be with identical, and can also be different, the application is not limited.
Alternatively, resnstance transformer unit 15 include at least one first switch resistance to 31 and at least two second switch electricity
Resistance is to 32, between compensation input RIN and compensation output end ROUT, and each first switch resistance is connected in a series arrangement to 31,
Each second switch resistance is connected to 32 with parallel way, first switch resistance to 31 with second switch resistance to 32 in a series arrangement
Connection, as shown in Figure 4.
First switch resistance includes the first compensation resistance R connected with parallel way to 31pWith the first compensating switch Tp, the
One compensating switch TpFirst compensation resistance R during shut-offpIt is linked between compensation input RIN and compensation output end ROUT, such as schemes
Shown in 2B.Second switch resistance is to 32 the second compensation resistance R including connecting in a series arrangementqWith the second compensating switch Tq, second
Compensating switch TqSecond compensation resistance R during conductingqIt is linked between compensation input RIN and compensation output end ROUT, such as Fig. 3 B
It is shown.
So, can be by controlling the first compensating switch TpWith the second compensating switch TqState, to control series connection to be linked into benefit
Repay the first compensation resistance R between input RIN and compensation output end ROUTpNumber and be coupled in parallel to compensation input
Second compensation resistance R between RIN and compensation output end ROUTqNumber, so as to obtain required compensation resistance.
Alternatively, the first compensating switch TpAnd/or the second compensating switch TqFor thin film transistor (TFT) (Thin Film
Transistor, TFT).
So, when resnstance transformer unit is arranged on non-display area, each first compensating switch TpAnd/or second compensation open
Close TqThe driving transistor identical technique with touch-control display panel can be used to be made, without increasing extra making
Technique.
Alternatively, each first compensating switch TpAnd/or the second compensating switch TqControl end by different compensating control signals
To control.
The different compensating control signal by applying, can be as needed by the corresponding first compensation resistance RpAnd/or the
Two compensation resistance RqIt is linked between compensation input RIN and compensation output end ROUT, so as to obtain the compensation to be compensated electricity
Resistance, following article is by described by Fig. 6 A and Fig. 6 B.
The compensation principle of the touch-control display panel of the present embodiment is entered with reference to the example shown in table one, Fig. 5 A and Fig. 6 A
Row description.
In this example, touch-control display panel may include 16*28 touch-control driving electrode array, each column touch-control driving electrodes bag
28 touch-control driving electrodes are included, for example, the 16th row touch-control driving electrodes include touch-control driving electrodes TX16,1~TX16,28.Below will
Illustrated by taking the 16th row touch-control driving electrodes as an example.
Table one shows the compensation resistance table of each touch-control driving electrodes in the 16th row touch-control driving electrodes.Wherein, N is with touching
Control the quantity of the touch-control driving electrodes line of driving electrodes connection, RlFor total resistance in touch-control driving electrodes before compensation, Δ RlTo mend
The difference of total resistance before repaying in two adjacent touch-control driving electrodes, RcThe resistance of the compensation resistance provided for resnstance transformer unit
Value, R is total resistance in touch-control driving electrodes after compensation, and Δ R is total resistance in two touch-control driving electrodes adjacent after compensation
The difference of value.
The touch-control driving electrodes of table one compensate resistance table
In this example, touch-control driving electrodes TX16,1~TX16,14Respectively connect a touch-control driving electrodes line TXL, touch-control driving
Electrode TX16,15~TX16,25Each connection two touch-controls driving electrodes line TXL, touch-control driving electrodes TX16,26~TX16,28Each connection two
Bar touch-control driving electrodes line TXL, then touch-control driving electrodes TX16,1~TX16,14For the first touch-control driving electrodes, touch-control driving electrodes
TX16,15~TX16,25For the second touch-control driving electrodes, touch-control driving electrodes TX16,26~TX16,28For the 3rd touch-control driving electrodes.
Fig. 5 A are the touch-control driving electrodes and the corresponding relation schematic diagram of total resistance in table one.From table one and Fig. 5 A,
Before resnstance transformer, the first touch-control driving electrodes TX16,1~TX16,14On total resistance substantially linearly change (difference is 227
Narrow fluctuation between the Ω of Ω~238), and the second touch-control driving electrodes TX16,15With the first touch-control driving electrodes TX16,14Between
The difference of total resistance is -1514 Ω, predetermined resistance (for example, 400 Ω) is exceeded well over, equally in the 3rd touch-control driving electrodes TX16,26
With the second touch-control driving electrodes TX16,25Between total resistance difference (- 895 Ω) also above predetermined resistance.
Fig. 6 A show the circuit diagram of the resnstance transformer unit of this example.As shown in Figure 6A, resnstance transformer unit can
Including three the second compensating switch T1~T3Resistance (resistance is respectively 500 Ω, 1000 Ω, 2000 Ω) are compensated with three second, respectively
Second compensation resistance is connected between compensation input RIN and compensation output end ROUT with parallel way.
In this example, resnstance transformer unit to the compensation resistance of the second touch-control driving electrodes and the 3rd touch-control driving electrodes such as
R in table onecIt is shown.Wherein, the second compensating switch T is only turned on1And T2333 Ω compensation resistance can be provided, second is only turned on and compensate
Switch T2And T3667 Ω compensation resistance ... ... can be provided, the rest may be inferred.
After the resnstance transformer of resnstance transformer unit, the second touch-control driving electrodes TX16,15With the first touch-control driving electrodes
TX16,14Between total resistance difference be -14 Ω (compensate for 1500 Ω), the 3rd touch-control driving electrodes TX16,26With the second touch-control
Driving electrodes TX16,25Between total resistance difference be 105 (compensate for 900 Ω), no more than predetermined resistance, i.e. eliminate
Because resistance is mutated caused by cabling quantity variance.That is, after resnstance transformer arbitrary neighborhood two touch-control driving electrodes
Between be not present resistance be mutated, so that display band will not be produced.
Although showing that touch-control driving electrode array includes 16*28 touch-control driving electrodes in this example, this is only
Schematically.It is understood that touch-control driving electrode array can include the touch-control driving electrodes of any suitable number, as long as
Wherein there are the first touch-control driving electrodes and the second touch-control driving electrodes, those skilled in the art can be according to practical application
It is configured the need for scene.
It is former to the compensation of the touch-control display panel of the present embodiment continuing with another example shown in table two, Fig. 5 B and Fig. 6 B
Reason is described.
In this example, touch-control display panel may include 18*32 touch-control driving electrode array, each column touch-control driving electrodes bag
32 touch-control driving electrodes are included, for example, the 18th row touch-control driving electrodes include touch-control driving electrodes TX18,1~TX18,32.Below will
Illustrated by taking the 18th row touch-control driving electrodes as an example.
Table two shows the compensation resistance table of each touch-control driving electrodes in the 18th row touch-control driving electrodes.Wherein, N is with touching
Control the quantity of the touch-control driving electrodes line of driving electrodes connection, RlFor total resistance in touch-control driving electrodes before compensation, Δ RlTo mend
The difference of total resistance before repaying in two adjacent touch-control driving electrodes, RcThe resistance of the compensation resistance provided for resnstance transformer unit
Value, R is total resistance in touch-control driving electrodes after compensation, and Δ R is total resistance in two touch-control driving electrodes adjacent after compensation
The difference of value.
The touch-control driving electrodes of table two compensate resistance table
In this example, touch-control driving electrodes TX18,1~TX18,24Respectively connect a touch-control driving electrodes line TXL, touch-control driving
Electrode TX18,25~TX18,32Two touch-control driving electrodes line TXL are respectively connected, then touch-control driving electrodes TX18,1~TX18,24For first
Touch-control driving electrodes, touch-control driving electrodes TX18,25~TX18,32For the second touch-control driving electrodes.
Fig. 5 B are the touch-control driving electrodes and the corresponding relation schematic diagram of total resistance in table two.From table two and Fig. 5 B,
Before resnstance transformer, the second touch-control driving electrodes TX18,25With the first touch-control driving electrodes TX18,24Between total resistance difference
It is worth for -2347 Ω, exceeds well over predetermined resistance (for example, 400 Ω).
Fig. 6 B show the circuit diagram of the resnstance transformer unit of this example.As shown in Figure 6B, resnstance transformer unit can
Including three the first compensating switch T1~T3Resistance (resistance is respectively 500 Ω, 1000 Ω, 2000 Ω) are compensated with three first, respectively
First compensation resistance is connected between compensation input RIN and compensation output end ROUT in a series arrangement.
In this example, resnstance transformer unit is to R in the compensation resistance such as table two of the second touch-control driving electrodescIt is shown.Wherein,
Only turn off the first compensating switch T1And T21500 Ω compensation resistance can be provided, the first compensating switch T is only turned off3Conducting can be provided
2000 Ω compensation resistance.
After the resnstance transformer of resnstance transformer unit, the second touch-control driving electrodes TX18,25With the first touch-control driving electrodes
TX18,24Between total resistance difference be -347 Ω (compensate for 2000 Ω), no more than predetermined resistance, i.e. eliminate due to walking
Resistance is mutated caused by line quantity variance.That is, after resnstance transformer between two touch-control driving electrodes of arbitrary neighborhood
In the absence of resistance mutation, so that display band will not be produced.
In addition, in this example, when touch-control display panel only includes the first touch-control driving electrodes and the second touch-control driving electrodes
When, it is only necessary to the second touch-control driving electrodes (for example, touch-control driving electrodes TX18,25~TX18,32) compensate, can effectively it subtract
The quantity of resnstance transformer unit in few touch-control display panel.
With continued reference to Fig. 7, the schematic diagram of another embodiment of the touch-control display panel of the application is shown.
Similar with the embodiment shown in Fig. 1, in the present embodiment, touch-control display panel equally may include touch-control driving electrodes battle array
Arrange TX1,1~TXm,n, a plurality of touch-control driving electrodes line TXL, fan-out area 23 (including a plurality of be fanned out to lead 24) and multiple resistance mends
Repay unit 25.Here, m, n are the integer more than 1.
In same row touch-control driving electrodes, the first touch-control driving electrodes and the second touch-control driving electrodes equally may be present,
For example, in the n-th row touch-control driving electrodes, touch-control driving electrodes TX1,n~TXa,nFor the first touch-control driving electrodes, touch-control driving
Electrode TX(a+1),n~TXb,nFor the second touch-control driving electrodes.Here, a, b are integer, and m >=b>a≥1.
From unlike the embodiment shown in Fig. 1, as shown in fig. 7, in the present embodiment, touch-control display panel also includes setting
Driving chip 26 in non-display area, resnstance transformer unit 25 is arranged in driving chip 26, and driving chip 26 includes mending
Repay lead-out terminal.Compensation lead-out terminal is connected to resnstance transformer unit 25 and connected is fanned out between lead 24.
Specifically, what is electrically connected with the second touch-control driving electrodes is fanned out to the compensation that lead 24 is electrically connected to driving chip 25
Lead-out terminal, and then the resnstance transformer unit 25 being electrically connected in driving chip 25.
In the present embodiment, by the way that resnstance transformer unit is arranged in driving chip, touch-control display panel can not changed
In the case of design and processes, the resnstance transformer to the second touch-control driving electrodes is realized, and because resnstance transformer unit is set
Put in driving chip, be not take up the wiring area of touch-control display panel, be conducive to the realization of narrow frame.
In addition, resnstance transformer unit is encapsulated in inside driving chip, be conducive to improving in the integrated level of circuit, technique more
It is easily achieved.
When resnstance transformer unit is not disposed in driving chip 25, it is necessary to be additionally provided each compensating switch (for example, first
Compensating switch TpWith the second compensating switch Tq) compensating control signal, for example, by driving chip 25 other lead-out terminals provide.
And when resnstance transformer unit is arranged in driving chip 25, the compensation control of each compensating switch is real in the inside of driving chip 25
It is existing, it is not necessary to which that driving chip 25 provides extra compensating control signal, reduces the lead-out terminal quantity of driving chip 25.
With continued reference to Fig. 8, the schematic diagram of one embodiment of the touch-control display panel of the application is shown.
As shown in figure 8, touch-control display panel 600 may include the array base palte 620 being oppositely arranged and color membrane substrates 610 and
It is arranged on the liquid crystal layer 630 between array base palte 620 and color membrane substrates 610.Wherein, array base palte 620 may include public electrode
621, the reusable of public electrode 621 is touch-control driving electrodes.
During touch-control, driving chip provides touch scanning signals successively to each touch-control driving electrodes 621, and receives touch-control
Sensing signal, then determines touch location according to the different of the touch sense signals received.During showing, driving chip to
Public electrode 621 provides public voltage signal so that the liquid in liquid crystal layer 630 between array base palte 620 and color membrane substrates 610
Brilliant molecule is deflected under public electrode and the electric field action of pixel electrode formation, so as to realize the display of predetermined picture.
The present embodiment is beneficial in that, common electrode layer is multiplexed with into touch-control drive electrode layer, is simplified touch-control and is shown
Show the structure of panel, be conducive to the lightening of touch-control display panel.
Disclosed herein as well is a kind of touch control display apparatus, as shown in Figure 9.Wherein, touch control display apparatus 700 may include
As above touch-control display panel.It will be appreciated by those skilled in the art that touch control display apparatus including touch-control as above except showing
Outside panel, some other known structures can also be included., will be no longer public to these in order to not obscure the emphasis of the application
The structure known is described further.
The touch control display apparatus of the application can be any device for including touch-control display panel as above, including but not limit
In cellular mobile phone 700 as shown in Figure 9, tablet personal computer, the display of computer, applied in Intelligent worn device
Display, applied to display device on the vehicles such as automobile etc..As long as touch control display apparatus contains disclosure
Touch-control display panel structure, be just contemplated as falling within the protection domain of the application.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes formed by any combination.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical characteristic of energy carries out technical scheme formed by replacement mutually.
Claims (13)
1. a kind of touch-control display panel, it is characterised in that the touch-control display panel includes being arranged on being fanned out to for non-display area
Region and multiple resnstance transformer units and the touch-control driving electrode array and a plurality of touch-control driving electrodes for being arranged on viewing area
Line, the non-display area surrounds the viewing area, and the resnstance transformer unit is located at the fan-out area away from described aobvious
Show the side in region；
The fan-out area is fanned out to lead including a plurality of, for receiving touch-control drive signal；
The touch-control driving electrode array includes multirow touch-control driving electrodes and multiple row touch-control driving electrodes, and each touch-control drives
Moving electrode is electrically connected with touch-control driving electrodes line described at least one, and what is be connected with the same touch-control driving electrodes is each described
Touch-control driving electrodes line, which is electrically connected to, is fanned out to lead described in same；
Wherein, in touch-control driving electrodes described in same row, there are the first touch-control driving electrodes and the second touch-control driving electrodes, institute
The quantity for stating the touch-control driving electrodes line of the second touch-control driving electrodes connection is connected more than the first touch-control driving electrodes
The touch-control driving electrodes line quantity；
Lead is fanned out to described in the second touch-control driving electrodes connection to electrically connect with the resnstance transformer unit.
2. touch-control display panel according to claim 1, it is characterised in that in touch-control driving electrodes described in same row,
Also there are the 3rd touch-control driving electrodes, the quantity of the touch-control driving electrodes line of the 3rd touch-control driving electrodes connection is more than
The quantity of the touch-control driving electrodes line of the second touch-control driving electrodes connection；
Lead is fanned out to described in the 3rd touch-control driving electrodes connection to electrically connect with the resnstance transformer unit.
3. touch-control display panel according to claim 1, it is characterised in that the first touch-control driving electrodes are located at described
Close to one end of the fan-out area in viewing area, the second touch-control driving electrodes are located in the viewing area away from institute
State one end of fan-out area.
4. touch-control display panel according to claim 2, it is characterised in that the first touch-control driving electrodes are located at described
Close to one end of the fan-out area in viewing area, the 3rd touch-control driving electrodes are located in the viewing area away from institute
One end of fan-out area is stated, the second touch-control driving electrodes are located at the first touch-control driving electrodes and the 3rd touch-control drives
Between moving electrode.
5. touch-control display panel according to claim 1, it is characterised in that the touch-control display panel also includes being arranged on
The driving chip of the non-display area, the resnstance transformer unit is arranged in the driving chip, the driving chip bag
Include compensation lead-out terminal；
The compensation lead-out terminal is connected to the resnstance transformer unit and connected described is fanned out between lead.
6. touch-control display panel according to claim 1, it is characterised in that the resnstance transformer unit includes compensation and inputted
End, compensation output end and switch resistance pair, the switch resistance is to including compensation resistance and compensating switch, for by the compensation
Resistance is linked between the compensation input and the compensation output end.
7. touch-control display panel according to claim 6, it is characterised in that the resnstance transformer unit includes at least one
First switch resistance pair；
The first switch resistance is to the first compensation resistance and the first compensating switch including being connected with parallel way, described first
The first compensation resistance is linked between the compensation input and the compensation output end described in when compensating switch is turned off；
Each first switch resistance to being connected between the compensation input and the compensation output end in a series arrangement.
8. touch-control display panel according to claim 6, it is characterised in that the resnstance transformer unit includes at least two
Second switch resistance pair；
The second switch resistance is to the second compensation resistance and the second compensating switch including connecting in a series arrangement, described second
The second compensation resistance is linked between the compensation input and the compensation output end described in when compensating switch is turned on；
Each second switch resistance with parallel way to being connected between the compensation input and the compensation output end.
9. touch-control display panel according to claim 6, it is characterised in that the resnstance transformer unit includes at least one
First switch resistance pair and at least two second switch resistance pair；
The first switch resistance is to the first compensation resistance and the first compensating switch including being connected with parallel way, described first
The first compensation resistance is linked between the compensation input and the compensation output end described in when compensating switch is turned off；
The second switch resistance is to the second compensation resistance and the second compensating switch including connecting in a series arrangement, described second
The second compensation resistance is linked between the compensation input and the compensation output end described in when compensating switch is turned on；
It is described compensation input and the compensation output end between, each first switch resistance to connecting in a series arrangement,
Each second switch resistance with parallel way to being connected, and the first switch resistance pair is with the second switch resistance to string
Connection mode is connected.
10. touch-control display panel according to claim 6, it is characterised in that the compensating switch is thin film transistor (TFT).
11. touch-control display panel according to claim 10, it is characterised in that the control end of each thin film transistor (TFT) by
Different compensating control signal control.
12. touch-control display panel according to claim 1, it is characterised in that the touch-control display panel also includes public
Electrode, the public electrode is multiplexed with the touch-control driving electrodes.
13. a kind of touch control display apparatus, it is characterised in that including the touch-control display surface as any one of claim 1-12
Plate.
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| CN201710225270.6A CN106990869B (en) | 2017-04-07 | 2017-04-07 | Touch display panel and touch display device |
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|---|---|---|---|
| CN201710225270.6A CN106990869B (en) | 2017-04-07 | 2017-04-07 | Touch display panel and touch display device |
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