CN104407728B - Touch display device and driving method - Google Patents
Touch display device and driving method Download PDFInfo
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- CN104407728B CN104407728B CN201410491022.2A CN201410491022A CN104407728B CN 104407728 B CN104407728 B CN 104407728B CN 201410491022 A CN201410491022 A CN 201410491022A CN 104407728 B CN104407728 B CN 104407728B
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- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 10
- 230000006870 function Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- 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
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a touch display device, comprising: a substrate and a touch layer on the substrate; the touch layer includes a plurality of electrode patterns including electrodes and electrode lines; the touch layer further comprises a plurality of electrode areas, the electrode areas comprise at least one electrode, and the electrodes in the same electrode area are applied with the same common voltage. The invention also provides a driving method of the touch display device, which comprises the steps of inputting the common voltage corresponding to each electrode area for each electrode area, wherein the common voltages applied to the electrodes in the same electrode area are the same; a drive detection signal is supplied to each electrode pattern, and a capacitance to ground or a voltage change of each electrode pattern is detected. The touch display device and the driving method provided by the invention can avoid the problem of panel flicker caused by inputting uniform public voltage to the touch electrodes with different resistance values, and improve the display effect of the product.
Description
Technical field
The present invention relates to touch-control display field, more particularly to a kind of touch control display apparatus and its driving method.
Background technology
Currently, being showing improvement or progress day by day with Display Technique, people, which are not intended merely to display device, has the function of display image, also
Wish that display device has the function of touch-control.Nowadays, the touch control display apparatus such as mobile phone, tablet personal computer, touch control display plate is deep by people
Like.In order to more frivolous, touch control display apparatus at this stage is general by the integrated display panel of touch control electrode, such as color
Ilm substrate, array base palte, organic luminous panel etc..As shown in figure 1, touch control display apparatus 10 includes multiple pixel electrodes 11 and many
Individual touch control electrode pattern 12, pixel electrode 11 is used to provide pixel voltage, and touch control electrode pattern 12 is realized by scanning and detecting
Touch positioning function.In the prior art, touch control electrode pattern 12 can only have touch-control scanning and positioning function, also can be in display
Stage serves as public electrode further to reduce plate thickness.But when providing unified common electric voltage to whole touch control electrode patterns,
Easily there is flicker problem in panel.
The content of the invention
Embodiments of the invention technical problem to be solved is due to be united to there is the input of the touch control electrode of resistance difference
During one common electric voltage, easily there is flicker problem in panel.
The embodiment of the present invention provides a kind of touch control display apparatus, including：
Substrate and the touch layer on the substrate；The touch layer includes multiple electrodes pattern, the electrode pattern
The electrode wires electrically connected including electrode and with the electrode；
The touch layer also includes multiple electrodes region, and the electrode zone at least includes an electrode, same institute
State the common electric voltage that the electrode in electrode zone is applied in identical.
The touch control display apparatus that the present invention is provided, according to the resistance difference of electrode pattern, by the electrode of Different electrodes pattern
Zoning, solves and same voltage is supplied into flicker caused by all electrode patterns in the prior art, improve picture
Display quality.
The embodiment of the present invention also provides a kind of driving method of touch control display apparatus, and the touch control display apparatus includes substrate
With the touch layer on the substrate, the touch layer include multiple electrodes pattern, the electrode pattern include electrode and with
The electrode wires of the electrode electrical connection, the touch layer also includes multiple electrodes region, and the electrode zone at least includes one
The electrode, the driving method includes：
The corresponding common electrical of the electrode zone is inputted for the corresponding electrode pattern of electrode of each electrode zone
Press and identical common electric voltage is applied to the electrode in the same electrode zone；
Driving detection signal, the direct-to-ground capacitance change of each electrode pattern of detection are provided for each electrode pattern
Or voltage change.
Driving method provided in an embodiment of the present invention, the not corresponding electrode pattern offer of the electrode of only different zones makes each
From common electric voltage, the flicker of touch control display apparatus is reduced；Also each electrode pattern can be multiplexed with touch electrode, can be with a variety of
Mode is driven and detected, judges whether occur touch-control.
Brief description of the drawings
Fig. 1 is the top view of the touch control display apparatus of prior art；
Fig. 2 is a kind of top view of touch control display apparatus provided in an embodiment of the present invention；
Fig. 3 a are the top view of each electrode zone in Fig. 2；
Fig. 3 b are each electrode zone common electric voltage and flicker value graph of a relation in Fig. 3 a；
Fig. 4 is the top view of another touch control display apparatus provided in an embodiment of the present invention；
Fig. 5 is operation principle schematic diagram of the electrode pattern in the touch-control stage
Fig. 6 is a kind of touch control display apparatus driving method flow chart provided in an embodiment of the present invention；
Fig. 7 is another touch control display apparatus driving method flow chart provided in an embodiment of the present invention；
Fig. 8 is another touch control display apparatus driving method flow chart provided in an embodiment of the present invention；
Fig. 9 is a certain electrode zone voltage and flicker value graph of a relation.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here to implement using other, therefore the present invention is not limited by following public specific embodiment
System.
" on being located at ... " of the present invention refers to be located at display device close to the direction of user, both direct including both
Contact, also including at least having the mediate contact of other levels between the two.
The embodiments of the invention provide a kind of touch control display apparatus, as shown in Fig. 2 touch control display apparatus includes the He of substrate 20
Touch layer (not shown) on substrate 20, touch layer (not shown) includes multiple electrodes pattern 200, and electrode pattern 200 enters
One step includes electrode 200a and the electrode wires 200b electrically connected with electrode 200a.Electrode wires 200b is electrically connected with electrode 200a to be thought
Electrode pattern 200 is filled with common electric voltage；Electrode wires 200b is alternatively arranged as touch control detection line.Touch control display apparatus also includes multiple electricity
Polar region domain 21,22,23,24.As shown in Fig. 2 each electrode zone at least includes an electrode, such as electrode zone 21 includes electrode
211a-214a, electrode zone 22, which include electrode 221a-223a, electrode zone 23, includes electrode 231a-234a.Each electrode district
One common electric voltage of correspondence of domain 21,22,23, i.e., the common electric voltage that the electrode of same electrode zone is provided is identical, i.e. electrode
The electrode 211a-214a correspondence first voltage V1 in region 21, the electrode 221a-223a correspondence second voltage V2 of electrode zone 22,
The electrode 231a-234a correspondence tertiary voltages V3 of electrode zone 23.And
Same common electric voltage, which is inputted after different public electrodes, in the prior art produces the main cause of difference for each electrode figure
The resistance of case has difference.Distal end public electrode causes the resistance of its whole electrode pattern due to connecting longer public electrode wire
Value is higher than the corresponding electrode pattern of near-end public electrode.
It is one resistance difference threshold value of setting that the embodiment of the present invention, which divides a kind of mode of electrode zone, each electrode zone
The difference of the resistance of the corresponding electrode pattern of any two electrode is less than default resistance difference threshold value, and resistance difference threshold value is preferably 200
Ohm.
As shown in Figure 3 a, electrode pattern 221 includes electrode 221a and the electrode wires 221b electrically connected with electrode 221a；Electricity
Pole figure case 222 includes electrode 222a and the electrode wires 222b electrically connected with electrode 222a；Electrode pattern 223 includes electrode 223a
With the electrode wires 223b electrically connected with electrode 223a.A resistance difference threshold value R0 is set, electrode pattern 221,222,223 is two-by-two
Between resistance difference when being both less than threshold value R0, electrode pattern 221,222,223 corresponding electrode 221a, 222a, 223a are divided
For an electrode zone 22.That is any two electrode 221a of electrode zone 22 and 222a, 221a and 223a, 222a and 223a pairs
The difference of the resistance for the electrode pattern 221 and 222,221 and 223,222 and 223 answered is less than default resistance difference threshold value R0.Each electrode
The metering system of pattern 221,222,223 is preferably from electrode wires 221b, 222b, 223b to electrode 221a, 222a, 223a electricity
Resistance.
With above-mentioned division methods, threshold value is both less than for 231,232,233,234 resistance difference between any two of electrode pattern
During R0, electrode pattern 231,232,233,234 corresponding electrode 231a, 232a, 233a, 234a are divided into an electrode zone
23.I.e. the difference of the resistance of the corresponding electrode pattern of any two electrode of electrode zone 23 is less than default resistance difference threshold value R0.
Resistance difference threshold value R0 sets smaller, then the electrode number in electrode zone is smaller, and the number of electrode zone is got over
It is many, and then need the common electric voltage provided more, most extreme situation is each electrode zone only one of which electrode, is each
Electrode provides a common electric voltage.But so need more powerful IC and more complicated external structure.Therefore one is needed more
Suitable resistance difference threshold value, provides same common electric voltage for the corresponding electrode of electrode pattern within this resistance difference and makes picture
Do not flash.
Further, by obtained by many experiments, when the resistance difference between two electrode patterns is less than 200 ohm, in correspondence
The voltage difference got on two electrodes is minimum, that is, display difference when providing same voltage is very trickle.When setting resistance difference threshold
When value R0 divides for 200 ohm to electrode zone, you can provide same voltage and suppression for the electrode of same electrode zone
Film flicker.
The common electric voltage of each electrode zone 21,22,23 is described with corresponding flicker value in conjunction with Fig. 3 b, entirely
When the flicker value of picture is less than -30 decibels, it is believed that the flicker of this picture can not be human eye finding.Set reference value F0 for-
30 decibels, the relation curve of the voltage of electrode zone 21,22,23 and its flicker value is as shown in Figure 3 b.With first electrode area, correspondingly
Illustrate how to measure flicker value exemplified by first voltage V1, be electrode 211a, 212a, 213a, 214a couple of first electrode area 21
The electrode pattern answered provides first voltage V1, and the electrode wires of as electrode 211a, 212a, 213a, 214a electrical connections provide first
Voltage.The method for determining flicker value F1 is same picture to be input into first electrode area 21 by two frames, a later frame is more previous
Frame carries out polarity inversion, and the flicker value of two frame picture brightness, that is, obtain corresponding flicker value F1 under first voltage V1 before and after measurement.
It can be drawn from figure, voltage of the flicker value under F0 all may be set to common electric voltage.Such as when electrode zone 21
Correspondence first voltage V1, the corresponding second voltage V2 of electrode zone 22, during the corresponding tertiary voltage V3 of electrode zone 23, electrode zone
21st, electrode zone 22, the flicker value in the 3rd region 23 are less than -30 decibels.
In addition, being at least respectively present an electrode, the resistance difference of both corresponding electrode patterns between different electrode zones
More than or equal to 200 ohm.At least there is an electrode, the corresponding electrode pattern of the electrode and another electrode in electrode zone 22
The difference of the resistance of the corresponding electrode pattern of at least one electrode in region 23 is more than or equal to default resistance difference threshold value R0, i.e.,
200 ohm.Such as electrode 221a in electrode zone 22, its corresponding electrode pattern 222 and electrode 234a in electrode zone 23
The difference of the resistance of corresponding electrode pattern 234 is more than or equal to 200 ohm.
Touch control display apparatus provided in an embodiment of the present invention is carried out effective by the resistance difference of electrode pattern to electrode zone
Division, each electrode zone provided different voltages, solves whole public electrode in the prior art and led using same voltage
The problem of film flicker of cause.The display quality of touch control display apparatus is improved, the demand of user is met.
The electrode pattern of one layer of touch control layer, touch control display apparatus provided in an embodiment of the present invention are only shown in Fig. 2 and Fig. 3 a
It may also comprise multiple touch layers.In addition the arrangement of the electrode pattern of touch control display apparatus provided in an embodiment of the present invention is alternatively it
His structure, as long as it meets according to resistance difference size is divided into multiple regions by electrode, respective public affairs are provided for regional
Common voltage, the i.e. protection domain in the embodiment of the present invention.
The touch control display apparatus that the present invention is provided also includes the storage list for storing the corresponding common electric voltage value of each electrode zone
Member, touch control display apparatus calls the corresponding common electric voltage value of each electrode zone to be applied to each electrode district from the memory cell
Electrode in domain.As shown in fig. 4 a, touch control display apparatus also includes memory cell 30, and memory cell 30 can preserve each electrode district
The common electric voltage in domain, and in the electrode in being provided to each electrode zone, the corresponding common electric voltage of each electrode zone is adjusted
Take.The common electric voltage of storage can be modified and adjusted, and the common electric voltage of storage is adapted to for each region that display device is measured
Common electric voltage, i.e. common electric voltage when regional makes flicker invisible in Fig. 3 b be supplied to regional to flash it
Voltage of the value less than -30 decibels.
The touch control display apparatus that the present invention is provided may also include electrode drive unit, not be only the electrode of each electrode zone
Corresponding electrode pattern provides common electric voltage, and driving detection signal can be also being provided for each electrode pattern.As shown in Figure 4 b, touch
Control display device also include electrode drive unit 40, electrode drive unit 40 be each electrode zone, such as electrode zone 21,22,
23 provide respective common electric voltage.By taking electrode zone 22 as an example, electrode 221a, 222a, 223a in electrode zone pass through respective
Electrode wires be electrically connected to electrode drive unit 40.Understood with reference to Fig. 3 b, the common electric voltage of electrode zone 22 is V2., electrode drive
Moving cell 40 provides public to the corresponding electrode wires of electrode 221a, 212a, 223a (i.e. by electrode wires to whole electrode pattern)
Voltage V2.The corresponding common electric voltage of each electrode zone is stored in memory cell 30 shown in Fig. 4 a.Driver element 40 is single with storage
Member 30 can be with separate, and memory cell 30 may be alternatively located in driver element 40, be a part for driver element 40.
When having detected whether touch-control, electrode drive unit 40 (is led to the corresponding electrode wires of electrode 221a, 222a, 223a
Electrode wires are crossed to whole electrode pattern) driving detection signal is provided.Driving detection signal is that the pulse changed with certain frequency is believed
Number, when common electric voltage be constantly overturn voltage when, display stage and detection-phase can be carried out simultaneously, detect signal frequency with
The frequency of common electric voltage is identical.When common electric voltage is in display for a constant voltage, display and touch-control timesharing can be driven
It is dynamic.With reference to Fig. 4 b, by taking electrode zone 22 as an example, electrode 221a, 212a, 223a correspondence are given in display stage electrode drive unit 40
Electrode wires (i.e. by electrode wires to whole electrode pattern) provide common electric voltage V2, in touch-control stage, electrode drive unit 40
Driving detection signal is provided to the corresponding electrode wires of electrode 221a, 212a, 223a (i.e. by electrode wires to whole electrode pattern).
In addition, electrode drive unit also detects direct-to-ground capacitance change or the voltage of each electrode pattern in the touch-control stage
Change.Exemplified by measuring direct-to-ground capacitance change, Fig. 5 provides electrode drive unit 40 and illustrated in the operation principle of detection-phase
Figure, electrode drive unit 40 is electrically connected with electrode wires 200b, and electrode wires 200b is electrically connected with electrode 200a.In rising for touch-control stage
Stage beginning, electrode drive unit 40 first passes through electrode wires 200b and charged for whole electrode pattern 200, then detecting electrode pattern
200 direct-to-ground capacitance C200 capacitance C1, is directly contacted when finger F, mediate contact or during close to touch display unit, finger
F and electrode 200a will produce electric capacity Cf.Electric capacity Cf between finger and electrode 200a can produce coupling so that electrode figure
The direct-to-ground capacitance C200 of case 200 capacitance is changed into C2.Electrode drive unit 40 will detect electric over the ground after electrode pattern 200 changes
Hold capacitance C2, draw the difference of former and later two capacitances C1, C2.
It can determine whether whether the position of electrode pattern 200 occurs touch-control by the change of this capacitance.In addition, removing
It can judge whether occur outside touch-control by the capacitance variations of measuring electrode pattern 200, the voltage of also measurable electrode pattern 200 becomes
Change to judge whether correspondence position occurs touch-control.
Touch control display apparatus provided in an embodiment of the present invention, its electrode drive unit included can be while or timesharing work
Make, assign two kinds of functions of electrode.In the display stage, common electric voltage is provided for each electrode zone；In the touch-control stage, it is possible to provide driving
Signal is detected, and judges whether occur touch-control in several ways.Display function and touch controllable function are cleverly combined one
Rise, and eliminate due to the flicker that electrode pattern resistance difference is caused.
The present invention also provides a kind of driving method of touch control display apparatus, contactor control device top view as shown in Figure 3 a, touch-control
Display device includes substrate 20 and the touch layer (not shown) on the substrate, and touch layer includes multiple electrodes pattern 200,
Electrode pattern 200 includes electrode 200a and the electrode wires 200b electrically connected with electrode 200a, and touch layer also includes multiple electrodes area
Domain 21,22,23, electrode zone 21,22,23 at least includes an electrode 200a, and such as electrode zone 21 includes electrode 211a-
214a, electrode zone 22 includes electrode 221a-223a, and electrode zone 23 includes electrode 231a-234a.In same electrode zone
The common electric voltage that electrode is applied in is identical, and the electrode 211a-214a in such as electrode zone 21 is applied in first voltage V1, electrode district
Electrode 221a-223a in domain 22 is applied in second voltage V2, the electrode 231a-234a in electrode zone 23 and is applied in the 3rd electricity
Press V3.The driving method as shown in fig. 6, including：
S1：For the corresponding electrode pattern of electrode of each electrode zone, to input the electrode zone corresponding public
Voltage and in the same electrode zone electrode apply identical common electric voltage；
S2：Driving detection signal, the direct-to-ground capacitance of each electrode pattern of detection are provided for each electrode pattern
Change or voltage change.
The step S1 corresponding common electric voltage of the electrode zone, to be supplied to the corresponding electricity of electrode of the electrode zone
The voltage of pole figure case.
In the step S2 touch-control stage, driving detection signal is provided for each electrode pattern, detects whether it occurs touch-control, when
When being judged by measuring direct-to-ground capacitance change, detailed process refers to Fig. 5：Electrode wires 200b is first passed through for whole electrode figure
Case 200 charges, then the direct-to-ground capacitance C200 of detecting electrode pattern 200 capacitance C1, directly contacts when finger F, mediate contact
Or during close to touch display unit, finger F will produce electric capacity Cf with electrode 200a.Electric capacity Cf between finger and electrode 200a
Coupling can be produced so that the direct-to-ground capacitance C200 of electrode pattern 200 capacitance is changed into C2, then draws former and later two electric capacity
The difference of value C1, C2, to judge whether to occur touch-control.In addition, except measurement direct-to-ground capacitance becomes outside the pale of civilization, also measurable electrode pattern
Voltage change before and after 200 touch-controls judges whether correspondence position occurs touch-control.
Further, any two electrode pair in the same electrode zone for the touch control display apparatus that above-mentioned driving method is referred to
The difference of the resistance for the electrode pattern answered is less than 200 ohm.As shown in Figure 3 a, electrode pattern 221 include electrode 221a and with the electricity
The electrode wires 221b of pole 221a electrical connections；Electrode pattern 222 includes electrode 222a and the electrode wires electrically connected with electrode 222a
222b；Electrode pattern 223 includes electrode 223a and the electrode wires 223b electrically connected with electrode 223a.Set a resistance difference threshold
Value R0, when 221,222,223 resistance difference between any two of electrode pattern is both less than threshold value R0, by electrode pattern 221,222,223
Corresponding electrode 221a, 222a, 223a are divided into an electrode zone 22.That is any two electrode 221a of electrode zone 22 with
The difference of the resistance of 222a, 221a electrode pattern 221 and 222,221 and 223,222 and 223 corresponding with 223a with 223a, 222a
It it is preferably 200 ohm less than default resistance difference threshold value R0, R0.
Further, as shown in fig. 7, the driving method of touch control display apparatus also includes determining each electrode zone correspondence
The step of common electric voltage：
S11：A magnitude of voltage is inputted for electrode zone some described, the corresponding flicker value of the magnitude of voltage is measured；
S12：The flicker value is compared with -30 decibels, enters S13 if the flicker value is less than -30 decibels, if flicker
Value is greater than or equal to -30 decibels, then returns to S11；
S13：Record the common electric voltage that the corresponding magnitude of voltage of the flicker value is recorded as the electrode zone.
For some electrode zone, a certain Voltage measure flicker value is inputted, then by step S12 by flicker value and -30
Decibel is compared, if flicker value is less than -30 decibels, obtains the common electric voltage that the voltage is the electrode zone；If dodging
Bright value is more than or equal to -30 decibels, then re-enters a magnitude of voltage, then is compared, until the flicker value in the region that must send as an envoy to
Common electric voltage less than -30 decibels.It should be noted that -30 decibels are only the preferred scope for judging flashing state, also can root
It is adjusted according to the actual conditions or specific demand of touch control display apparatus.It is corresponding with the common electric voltage of each electrode zone below
Exemplified by flicker value is compared with -30 decibels, the measurement to common electric voltage is illustrated.
As best shown in figures 3 a and 3b, the corresponding common electric voltage of electrode zone 21, to make the flicker value of electrode zone 21 be less than in advance
The voltage V1 provided during fixed flicker threshold F0 (- 30 decibels)；The corresponding common electric voltage of electrode zone 22, to make electrode zone 22
Flicker value voltage V2 for providing when being less than predetermined flicker threshold F0 (- 30 decibels)；The corresponding common electric voltage of electrode zone 23,
For the voltage V3 provided when making the flicker value of electrode zone 23 less than predetermined flicker threshold F0 (- 30 decibels).For electrode district
Domain 21,22,23, then step S1 is that voltage V1, V2, V3 are provided respectively into electrode zone 21,22,23, as electrode zone 21
Electrode 211a, 212a, 213,214a corresponding electrode patterns voltage V1 is provided；For the electrode 221a of electrode zone 22,222a,
The corresponding electrode patterns of 223a provide voltage V2；For the electrode 231a of electrode zone 23,232a, 233, the corresponding electrode figures of 234a
Case provides voltage V3.
Further, with reference to Fig. 4 a and Fig. 4 b, touch control display apparatus further comprises memory cell and electrode drive unit, can
By the storage of obtained common electric voltage in the memory unit, so, each electrode district stored in memory cell can directly be obtained
The corresponding common electric voltage in domain, then electrode drive unit directly can provide corresponding electrode zone common electric voltage.Such as Fig. 8 institutes
Show, be that the corresponding electrode pattern of the electrode of each electrode zone inputs the corresponding common electrical of the electrode zone
Pressure, in addition to：
S11’：Obtain the corresponding common electric voltage of each electrode zone for being stored in the memory cell；
S12’：The corresponding common electric voltage of each electrode zone is supplied to each electrode district by the electrode drive unit
The corresponding electrode pattern of electrode in domain.
Further, each electrode zone can correspond to multiple common electric voltages, the flicker value of the electrode zone is less than -30 points
Shellfish, flicker value that can be again to common electric voltage is compared, and is chosen the minimum common electric voltage of flicker value, is used as optimal common electric voltage.
To a certain electrode zone, its common electric voltage and flicker value relation are as shown in Figure 9.The electrode zone is given when providing voltage Va and Vb
When, it can be seen that its corresponding flicker value is respectively less than flicker threshold F0 (- 30dB), and Va and Vb are recorded as into common electric voltage, its
The viewing area can be provided to.The corresponding flicker value of common electric voltage Va and Vb is compared again, voltage Vb bottom electrodes
The corresponding flicker value in the region is smaller, then compared with Va for, record Vb be optimal common electric voltage.
After repeatedly comparing and obtaining optimal common electric voltage, optimal common electric voltage can be stored in the memory unit, so,
When needing to provide common electric voltage, the optimal common electric voltage of storage in the memory unit can be directly obtained, then by electrode drive
Unit directly provides corresponding electrode zone optimal common electric voltage.
It should be noted that above example can be used for reference mutually, synthesis is used.Although the present invention is with preferred embodiment
Disclose as above, but it is not that, for limiting the present invention, any those skilled in the art are not departing from the spirit and model of the present invention
In enclosing, the methods and techniques content that may be by the disclosure above makes possible variation and modification to technical solution of the present invention,
Therefore, every content without departing from technical solution of the present invention, what the technical spirit according to the present invention was made to above example appoints
What simple modification, equivalent variation and modification, belongs to the protection domain of technical solution of the present invention.
Claims (14)
1. a kind of touch control display apparatus, including：
Substrate and the touch layer on the substrate；The touch layer includes multiple electrodes pattern, and the electrode pattern includes
Electrode and the electrode wires electrically connected with the electrode；
The touch layer also includes multiple electrodes region, and the electrode zone at least includes an electrode, each electricity
The difference of the resistance of the corresponding electrode pattern of any two electrode in polar region domain is less than default resistance difference threshold value, the same electrode
The common electric voltage that electrode in region is applied in is identical, and different common electric voltages are provided in each electrode zone.
2. touch control display apparatus as claimed in claim 1, it is characterised in that any two electricity in the same electrode zone
The difference of the resistance of extremely corresponding electrode pattern is less than 200 ohm.
3. touch control display apparatus as claimed in claim 2, it is characterised in that the electrode zone include first electrode area and
At least there is first electrode in the second electrode region, the first electrode area, the corresponding electrode pattern of the first electrode
And the difference of the resistance of the corresponding electrode pattern of at least one second electrode in the second electrode region is more than or equal to 200 Europe
Nurse.
4. touch control display apparatus as claimed in claim 1, it is characterised in that the electrode into each electrode zone applies
The corresponding common electric voltage of each electrode zone, makes the flicker value of each electrode zone be less than -30 decibels.
5. touch control display apparatus as claimed in claim 4, it is characterised in that the touch control display apparatus also includes storing each institute
The memory cell of the corresponding common electric voltage value of electrode zone is stated, the touch control display apparatus calls each described from the memory cell
The corresponding common electric voltage value of electrode zone is applied to the electrode in each electrode zone.
6. touch control display apparatus as claimed in claim 1, it is characterised in that the electrode is used as common electrical in the display stage
Pole；The electrode is used as touch control electrode in the touch-control stage.
7. touch control display apparatus as claimed in claim 1, it is characterised in that the touch control display apparatus also includes electrode drive
Unit, the electrode drive unit provides each electrode zone for the corresponding electrode pattern of electrode of each electrode zone
Corresponding common electric voltage, and the electrode drive unit provides driving detection signal for each electrode pattern.
8. touch control display apparatus as claimed in claim 7, it is characterised in that the electrode drive unit is in the touch-control stage
Also detect direct-to-ground capacitance change or the voltage change of each electrode pattern.
9. a kind of driving method of touch control display apparatus, the touch control display apparatus includes substrate and touching on the substrate
Layer is touched, the touch layer includes multiple electrodes pattern, and the electrode pattern includes electrode and the electrode electrically connected with the electrode
Line, the touch layer also includes multiple electrodes region, and the electrode zone at least includes an electrode, each electrode
The difference of the resistance of the corresponding electrode pattern of any two electrode in region is less than default resistance difference threshold value, the driving method bag
Include：
The corresponding common electric voltage of the electrode zone is inputted for the corresponding electrode pattern of electrode of each electrode zone simultaneously
And the different public affairs of offer in identical common electric voltage, each electrode zone are provided to the electrode in the same electrode zone
Common voltage；
Driving detection signal, the direct-to-ground capacitance change of each electrode pattern of detection or electricity are provided for each electrode pattern
Buckling.
10. driving method as claimed in claim 9, it is characterised in that the same electrode district of the touch control display apparatus
The difference of the resistance of the corresponding electrode pattern of any two electrode in domain is less than 200 ohm.
11. driving method as claimed in claim 9, it is characterised in that the driving method also includes determining each described electricity
The step of polar region domain correspondence common electric voltage：
A magnitude of voltage is inputted for electrode zone some described, the corresponding flicker value of the magnitude of voltage is measured；
If the flicker value is less than -30 decibels, records the corresponding magnitude of voltage of the flicker value and be recorded as the electrode
The corresponding common electric voltage in region, if flicker value is greater than or equal to -30 decibels, re-enters another magnitude of voltage, until input
The corresponding flicker value of a certain magnitude of voltage is less than -30 decibels.
12. driving method as claimed in claim 9, it is characterised in that the touch control display apparatus also includes electrode drive list
Member and memory cell, are that the corresponding electrode pattern of the electrode of each electrode zone inputs the electrode zone correspondence
Common electric voltage, in addition to：
Obtain the corresponding common electric voltage of each electrode zone for being stored in the memory cell；
The corresponding common electric voltage of each electrode zone is supplied to the electrode of each electrode zone by the electrode drive unit
Corresponding electrode pattern.
13. driving method as claimed in claim 11, it is characterised in that each electrode zone can correspond to multiple public affairs
Common voltage, the corresponding optimal common electric voltage of the electrode zone is recorded as by the corresponding common electric voltage of minimum flicker value.
14. driving method as claimed in claim 13, it is characterised in that the touch control display apparatus also includes electrode drive list
Member and memory cell, the driving method also include：
Obtain the corresponding optimal common electric voltage of each electrode zone for being stored in the memory cell；
The corresponding optimal common electric voltage of each electrode zone is supplied to each electrode district by the electrode drive unit
The corresponding electrode pattern of the electrode in domain.
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| CN106055164B (en) | 2016-07-11 | 2019-07-12 | 武汉华星光电技术有限公司 | The driving circuit and driving method of touch display panel, touch display panel |
| CN109144302B (en) * | 2017-06-28 | 2020-03-13 | 京东方科技集团股份有限公司 | Touch panel, touch method thereof and touch device |
| CN108717333A (en) * | 2018-03-05 | 2018-10-30 | 广东欧珀移动通信有限公司 | Display control unit, control method, the terminal device of display screen |
| CN110737140B (en) * | 2019-10-31 | 2022-12-13 | 厦门天马微电子有限公司 | Display panel, control method thereof and display device |
| CN113485556B (en) * | 2021-07-19 | 2024-03-15 | 京东方科技集团股份有限公司 | Display device and tactile feedback method thereof |
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