CN104407728A - A touch control display device and a driving method - Google Patents
A touch control display device and a driving method Download PDFInfo
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- CN104407728A CN104407728A CN201410491022.2A CN201410491022A CN104407728A CN 104407728 A CN104407728 A CN 104407728A CN 201410491022 A CN201410491022 A CN 201410491022A CN 104407728 A CN104407728 A CN 104407728A
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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
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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
- G06F3/045—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)
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Abstract
The present invention provides a touch control display device, which includes: a substrate and a touch layer located on the substrate; the touch layer includes a plurality of electrode images, and the electrode image includes an electrode and an electrode wire; the touch layer further includes a plurality of electrode regions, the electrode region at least includes one of the electrodes, the electrodes in the same electrode region are applied with a same common voltage. The present invention further provides a touch control display device driving method. The common voltage corresponding to the electrode region is input to each electrode region, and the electrodes in the same electrode region are applied with the same common voltage; and a driving detecting signal is provided for each electrode image, to detect earth capacitance change or voltage change of each electrode image. The touch control display device and the driving method provided by the present invention can avoid the problem of inputting a uniform common voltage for touch control electrodes with different resistance values to cause panel glitter, and increase the display effect of the product.
Description
Technical field
The present invention relates to touch-control display field, particularly relate to a kind of touch control display apparatus and driving method thereof.
Background technology
Current, along with being showing improvement or progress day by day of display technique, people not only wish that 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, panel computer, touch control display plate is very popular.In order to more frivolous, the touch control display apparatus of present stage generally by display panel integrated for touch control electrode, as color membrane substrates, array base palte, organic luminous panel etc.As shown in Figure 1, touch control display apparatus 10 comprises multiple pixel electrode 11 and multiple touch control electrode pattern 12, and pixel electrode 11 is for providing pixel voltage, and touch control electrode pattern 12 realizes touching positioning function by scanning and detecting.In the prior art, touch control electrode pattern 12 only can have touch-control scanning and positioning function, also can serve as public electrode to reduce plate thickness further in the display stage.But when providing unified common electric voltage to whole touch control electrode pattern, easily there is flicker problem in panel.
Summary of the invention
Embodiments of the invention technical matters to be solved be due to the touch control electrode for there is resistance difference input unified common electric voltage time, easily there is flicker problem in panel.
The embodiment of the present invention provides a kind of touch control display apparatus, comprising:
Substrate and the touch layer be positioned on described substrate; Described touch layer comprises multiple electrode pattern, the electrode wires that described electrode pattern comprises electrode and is electrically connected with described electrode;
Described touch layer also comprises multiple electrode zone, and described electrode zone at least comprises a described electrode, and the common electric voltage that the electrode in same described electrode zone is applied in is identical.
Touch control display apparatus provided by the invention, according to the resistance difference of electrode pattern, by the electrode zoning of Different electrodes pattern, solves in prior art the flicker same voltage being supplied to all electrode patterns and causing, improves the display quality of picture.
The embodiment of the present invention also provides a kind of driving method of touch control display apparatus, described touch control display apparatus comprises substrate and is positioned at the touch layer on described substrate, described touch layer comprises multiple electrode pattern, the electrode wires that described electrode pattern comprises electrode and is electrically connected with described electrode, described touch layer also comprises multiple electrode zone, described electrode zone at least comprises a described electrode, and described driving method comprises:
The electrode pattern of answering for the electrode pair of each described electrode zone inputs common electric voltage corresponding to electrode zone described in this and applies identical common electric voltage to the electrode in same described electrode zone;
For each described electrode pattern provides driving detection signal, detect ground capacitance change or the change in voltage of each described electrode pattern.
The driving method that the embodiment of the present invention provides, the electrode pattern that the electrode pair not being only zones of different is answered provides and makes respective common electric voltage, reduces the flicker of touch control display apparatus; Also each electrode pattern can be multiplexed with touch electrode, available various ways carries out driving and detecting, and judges whether touch-control occurs.
Accompanying drawing explanation
Fig. 1 is the vertical view of the touch control display apparatus of prior art;
The vertical view of a kind of touch control display apparatus that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 a is the vertical view of each electrode zone in Fig. 2;
Fig. 3 b is each electrode zone common electric voltage and flicker value graph of a relation in Fig. 3 a;
The vertical view of the another kind of touch control display apparatus that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the principle of work schematic diagram of electrode pattern in the touch-control stage
A kind of touch control display apparatus driving method process flow diagram that Fig. 6 provides for the embodiment of the present invention;
The another kind of touch control display apparatus driving method process flow diagram that Fig. 7 provides for the embodiment of the present invention;
Another touch control display apparatus driving method process flow diagram that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is a certain electrode zone voltage and flicker value graph of a relation.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.
Of the present invention " be positioned at ... on " refer to and be positioned at the direction of display device near user, both comprise both directly contacts, also comprise the indirect contact at least with other levels between the two.
Embodiments provide a kind of touch control display apparatus, as shown in Figure 2, the touch layer (not shown) that touch control display apparatus comprises substrate 20 and is positioned on substrate 20, touch layer (not shown) comprises multiple electrode pattern 200, the electrode wires 200b that electrode pattern 200 comprises electrode 200a further and is electrically connected with electrode 200a.Electrode wires 200b is electrically connected with electrode 200a and thinks that electrode pattern 200 is filled with common electric voltage; Electrode wires 200b also can be used as touch control detection line.Touch control display apparatus also comprises multiple electrode zone 21,22,23,24.As shown in Figure 2, each electrode zone at least comprises an electrode, as electrode zone 21 comprise electrode 211a-214a, electrode zone 22 comprises electrode 221a-223a, electrode zone 23 comprises electrode 231a-234a.The corresponding common electric voltage of each electrode zone 21,22,23, namely the common electric voltage that is provided of the electrode of same electrode zone is identical, the i.e. corresponding first voltage V1 of the electrode 211a-214a of electrode zone 21, the corresponding second voltage V2 of electrode 221a-223a of electrode zone 22, the corresponding tertiary voltage V3 of electrode 231a-234a of electrode zone 23.And
In prior art, same common electric voltage produces the main cause of difference after inputting different public electrode is that the resistance of each electrode pattern has difference.Far-end public electrode, owing to connecting longer public electrode wire, causes the resistance of its whole electrode pattern higher than electrode pattern corresponding to near-end public electrode.
It is setting resistance difference threshold value that the embodiment of the present invention divides a kind of mode of electrode zone, and the difference of the resistance of the electrode pattern that any two electrode pairs of each electrode zone are answered is less than default resistance difference threshold value, and resistance difference threshold value is preferably 200 ohm.
As shown in Figure 3 a, the electrode pattern 221 electrode wires 221b that comprises electrode 221a and be electrically connected with this electrode 221a; The electrode wires 222b that electrode pattern 222 comprises electrode 222a and is electrically connected with this electrode 222a; The electrode wires 223b that electrode pattern 223 comprises electrode 223a and is electrically connected with this electrode 223a.Set a resistance difference threshold value R0, when electrode pattern 221,222,223 resistance difference between any two is all less than threshold value R0, electrode 221a, 222a, 223a of electrode pattern 221,222,223 correspondence are divided into an electrode zone 22.Namely the difference of any two electrode 221a and 222a of electrode zone 22, the resistance of electrode pattern 221 and 222,221 and 223,222 and 223 that 221a and 223a, 222a and 223a are corresponding is less than default resistance difference threshold value R0.The metering system of each electrode pattern 221,222,223 is preferably from electrode wires 221b, 222b, 223b to the resistance of electrode 221a, 222a, 223a.
With above-mentioned division methods, when threshold value R0 is less than for electrode pattern 231,232,233,234 resistance difference between any two, electrode 231a, 232a, 233a, 234a of electrode pattern 231,232,233,234 correspondence are divided into an electrode zone 23.Namely the difference of the resistance of electrode pattern that any two electrode pairs of electrode zone 23 are answered is less than default resistance difference threshold value R0.
Resistance difference threshold value R0 arranges less, electrode number then in electrode zone is less, and the number of electrode zone is more, and then the common electric voltage that needs provide is more, the most extreme situation is that each electrode zone only has an electrode, for each electrode provides a common electric voltage.But need more powerful IC and more complicated external structure like this.Therefore the resistance difference threshold value that comparatively suitable is needed, for the electrode that the electrode pattern within this resistance difference is corresponding provides same common electric voltage and makes picture not glimmer.
Further, through great many of experiments gained, when the resistance difference when between two electrode patterns is less than 200 ohm, the voltage difference that corresponding two electrodes are got is minimum, namely provides display difference during same voltage very trickle.When set resistance difference threshold value R0 be 200 ohm electrode zone is divided time, the electrode that namely can be same electrode zone provides same voltage and suppresses film flicker.
The existing common electric voltage of composition graphs 3b to each electrode zone 21,22,23 is described with corresponding flicker value, when the flicker value of whole picture is lower than-30 decibels, thinks that the flicker of this picture cannot be human eye finding.Arrange reference value F0 and be-30 decibels, the relation curve of electrode zone 21,22,23 voltage and its flicker value as shown in Figure 3 b.Illustrate how to measure flicker value for the first region territory, corresponding first voltage V1, for the electrode pattern that electrode 211a, 212a, 213a, the 214a in the first region territory 21 are corresponding provides the first voltage V1, the electrode wires being electrode 211a, 212a, 213a, 214a electrical connection provides the first voltage.The method measuring flicker value F1 is that same picture is input to the first region territory 21 by two frames, and a rear frame comparatively former frame carries out reversal of poles, the flicker value of two frame picture brightness before and after measuring, flicker value F1 corresponding under namely obtaining the first voltage V1.
Can draw from figure, the voltage of flicker value under F0 all can be set as common electric voltage.As the corresponding first voltage V1 of electrode zone 21, the corresponding second voltage V2 of electrode zone 22, during the corresponding tertiary voltage V3 of electrode zone 23, the flicker value in electrode zone 21, electrode zone 22, the 3rd region 23 is lower than-30 decibels.
In addition, there is an electrode at least respectively between different electrode zones, the resistance difference of the electrode pattern of both correspondences is more than or equal to 200 ohm.At least there is an electrode in electrode zone 22, the difference of the resistance of the electrode pattern that at least one electrode pair in the electrode pattern that this electrode pair is answered and another electrode zone 23 is answered is more than or equal to default resistance difference threshold value R0, namely 200 ohm.Such as, electrode 221a in electrode zone 22, the difference of the resistance of the electrode pattern 234 that the electrode pattern 222 of its correspondence is corresponding with electrode 234a in electrode zone 23 is more than or equal to 200 ohm.
The touch control display apparatus that the embodiment of the present invention provides effectively is divided electrode zone by the resistance difference of electrode pattern, each electrode zone provides different voltage, solves the problem of the film flicker that whole public electrode in prior art adopts same voltage to cause.Improve the display quality of touch control display apparatus, meet the demand of user.
The electrode pattern of one deck touch control layer is only shown in Fig. 2 and Fig. 3 a, and the touch control display apparatus that the embodiment of the present invention provides also can comprise multiple touch layer.In addition the arrangement of the electrode pattern of touch control display apparatus that the embodiment of the present invention provides also can be other structures; as long as it meets according to resistance difference size, electrode is divided into multiple region; for regional provides respective common electric voltage, namely at the protection domain of the embodiment of the present invention.
Touch control display apparatus provided by the invention also comprises the storage unit storing common electric voltage value corresponding to each electrode zone, and touch control display apparatus calls common electric voltage value corresponding to each electrode zone from described storage unit and is applied to electrode in each described electrode zone.As shown in fig. 4 a, touch control display apparatus also comprises storage unit 30, and storage unit 30 can preserve the common electric voltage of each electrode zone, and when needing to be supplied to the electrode in each electrode zone, is transferred by common electric voltage corresponding for each electrode zone.The common electric voltage stored can modify and adjust, the common electric voltage stored is the common electric voltage that each region of recording of display device is applicable to, namely common electric voltage when regional makes flicker invisible in Fig. 3 b, is namely supplied to regional and makes its flicker value lower than the voltage of-30 decibels.
Touch control display apparatus provided by the invention also can comprise electrode drive unit, and the electrode pattern that the electrode pair not being only each electrode zone is answered provides common electric voltage, provides driving detection signal also can be each electrode pattern.As shown in Figure 4 b, touch control display apparatus also comprises electrode drive unit 40, and electrode drive unit 40 is each electrode zone, as electrode zone 21,22,23 provides respective common electric voltage.For electrode zone 22, electrode 221a, 222a, 223a in electrode zone are electrically connected to electrode drive unit 40 by respective electrode wires.Composition graphs 3b is known, and the common electric voltage of electrode zone 22 is V2., electrode drive unit 40 provides common electric voltage V2 to electrode wires corresponding to electrode 221a, 212a, 223a (namely by electrode wires to whole electrode pattern).The common electric voltage that each electrode zone is corresponding is stored in storage unit 30 shown in Fig. 4 a.Driver element 40 and storage unit 30 can be separate, and storage unit 30 also can be arranged in driver element 40, is a part for driver element 40.
Detect when whether having a touch-control, electrode drive unit 40 provides driving detection signal to electrode wires corresponding to electrode 221a, 222a, 223a (namely by electrode wires to whole electrode pattern).Drive detection signal to be with the pulse signal of certain frequency change, when common electric voltage is the voltage of constantly upset, display stage and detection-phase can carry out simultaneously, and the frequency of detection signal is identical with the frequency of common electric voltage.When common electric voltage is a constant voltage when showing, can display and touch-control timesharing driving.Composition graphs 4b, for electrode zone 22, there is provided common electric voltage V2 to electrode wires corresponding to electrode 221a, 212a, 223a (namely by electrode wires to whole electrode pattern) in display stage electrode drive unit 40, in the touch-control stage, electrode drive unit 40 provides driving detection signal to electrode wires corresponding to electrode 221a, 212a, 223a (namely by electrode wires to whole electrode pattern).
In addition, electrode drive unit also detects ground capacitance change or the change in voltage of each electrode pattern in the described touch-control stage.Be changed to example to measure ground capacitance, Fig. 5 provides the principle of work schematic diagram of electrode drive unit 40 at detection-phase, and electrode drive unit 40 is electrically connected with electrode wires 200b, and electrode wires 200b is electrically connected with electrode 200a.At the initial period in touch-control stage, electrode drive unit 40 is first that whole electrode pattern 200 charges by electrode wires 200b, then the capacitance C1 of detecting electrode pattern 200 ground capacitance C200, when finger F directly contact, indirect contact or close to touch display unit time, finger F and electrode 200a will produce electric capacity Cf.Electric capacity Cf between finger and electrode 200a can produce coupling thus make the capacitance of electrode pattern 200 ground capacitance C200 become C2.Electrode drive unit 40 will detect that electrode pattern 200 changes rear ground capacitance capacitance C2, draw the difference of former and later two capacitances C1, C2.
Can judge whether the position of electrode pattern 200 touch-control occurs further by the change of this capacitance.In addition, except the capacitance variations by potential electrode pattern 200 judges whether to occur except touch-control, also the change in voltage of potential electrode pattern 200 can judge whether correspondence position touch-control occurs.
The touch control display apparatus that the embodiment of the present invention provides, it electrode drive unit comprised can simultaneously or time-sharing work, give electrode two kinds of functions.In the display stage, for each electrode zone provides common electric voltage; In the touch-control stage, driving detection signal can be provided, and judge whether in several ways touch-control occurs.Presentation Function and touch controllable function are combined cleverly, and eliminates the flicker because electrode pattern resistance difference causes.
The present invention also provides a kind of driving method of touch control display apparatus, contactor control device vertical view as shown in Figure 3 a, the touch layer (not shown) that touch control display apparatus comprises substrate 20 and is positioned on described substrate, touch layer comprises multiple electrode pattern 200, the electrode wires 200b that electrode pattern 200 comprises electrode 200a and is electrically connected with electrode 200a, touch layer also comprises multiple electrode zone 21, 22, 23, electrode zone 21, 22, 23 at least comprise an electrode 200a, as electrode zone 21 comprises electrode 211a-214a, electrode zone 22 comprises electrode 221a-223a, electrode zone 23 comprises electrode 231a-234a.The common electric voltage that electrode in same electrode zone is applied in is identical, and the electrode 231a-234a be applied in the second voltage V2, electrode zone 23 as the electrode 221a-223a be applied in the first voltage V1, electrode zone 22 of the electrode 211a-214a in electrode zone 21 is applied in tertiary voltage V3.Described driving method as shown in Figure 6, comprising:
S1: the electrode pattern that the electrode pair for each described electrode zone is answered inputs common electric voltage corresponding to electrode zone described in this and applies identical common electric voltage to the electrode in same described electrode zone;
S2: for each described electrode pattern provides driving detection signal, detects ground capacitance change or the change in voltage of each described electrode pattern.
The common electric voltage that electrode zone described in this of step S1 is corresponding is the voltage of the electrode pattern that the electrode pair being supplied to this electrode zone is answered.
The touch-control stage of step S2, for each electrode pattern provides driving detection signal, detect it and whether touch-control occurs, when being judged by the change of measurement ground capacitance, detailed process can with reference to figure 5: be first that whole electrode pattern 200 charges by electrode wires 200b, then the capacitance C1 of detecting electrode pattern 200 ground capacitance C200, when finger F directly contact, indirect contact or close to touch display unit time, finger F and electrode 200a will produce electric capacity Cf.Electric capacity Cf between finger and electrode 200a can produce coupling thus make the capacitance of electrode pattern 200 ground capacitance C200 become C2, then draws the difference of former and later two capacitances C1, C2, judges whether touch-control occurs.In addition, except the change of measurement ground capacitance, also the change in voltage before and after potential electrode pattern 200 touch-control can judge whether correspondence position touch-control occurs.
Further, the difference of the resistance of the electrode pattern that any two electrode pairs in the same electrode zone of touch control display apparatus mentioned of above-mentioned driving method are answered is less than 200 ohm.As shown in Figure 3 a, the electrode pattern 221 electrode wires 221b that comprises electrode 221a and be electrically connected with this electrode 221a; The electrode wires 222b that electrode pattern 222 comprises electrode 222a and is electrically connected with this electrode 222a; The electrode wires 223b that electrode pattern 223 comprises electrode 223a and is electrically connected with this electrode 223a.Set a resistance difference threshold value R0, when electrode pattern 221,222,223 resistance difference between any two is all less than threshold value R0, electrode 221a, 222a, 223a of electrode pattern 221,222,223 correspondence are divided into an electrode zone 22.Namely the difference of any two electrode 221a and 222a of electrode zone 22, the resistance of electrode pattern 221 and 222,221 and 223,222 and 223 that 221a and 223a, 222a and 223a are corresponding is less than default resistance difference threshold value R0, and R0 is preferably 200 ohm.
Further, as shown in Figure 7, the driving method of touch control display apparatus also comprises the step measuring the corresponding common electric voltage of electrode zone described in each:
S11: for electrode zone described in certain inputs a magnitude of voltage, measure the flicker value that described magnitude of voltage is corresponding;
S12: described flicker value compared with-30 decibels, if described flicker value is lower than-30 decibels, enters S13, if flicker value is greater than or equal to-30 decibels, then gets back to S11;
S13: record the common electric voltage that described magnitude of voltage corresponding to described flicker value is recorded as electrode zone described in this.
For certain electrode zone, input a certain Voltage measure flicker value, then through step S12, flicker value is compared with-30 decibels, if flicker value is less than-30 decibels, then obtain the common electric voltage that this voltage is this electrode zone; If flicker value is more than or equal to-30 decibels, then re-enters a magnitude of voltage, then compare, until the common electric voltage that the flicker value in this region of must sening as an envoy to is less than-30 decibels.It should be noted that-30 decibels are only the preferable range judging flashing state, also can adjust according to the actual conditions of touch control display apparatus or specific demand.Compare with-30 decibels for the flicker value that the common electric voltage of each electrode zone is corresponding below, the measurement of common electric voltage is described.
As best shown in figures 3 a and 3b, the common electric voltage of electrode zone 21 correspondence, the voltage V1 provided when being less than predetermined flicker threshold F0 (-30 decibels) for making the flicker value of electrode zone 21; The common electric voltage of electrode zone 22 correspondence, the voltage V2 provided when being less than predetermined flicker threshold F0 (-30 decibels) for making the flicker value of electrode zone 22; The common electric voltage of electrode zone 23 correspondence, the voltage V3 provided when being less than predetermined flicker threshold F0 (-30 decibels) for making the flicker value of electrode zone 23.For electrode zone 21,22,23, then step S1 is for be provided to electrode zone 21,22,23 respectively by voltage V1, V2, V3, be electrode 211a, the 212a of electrode zone 21,213, electrode pattern that 214a is corresponding provides voltage V1; For the electrode pattern that electrode 221a, 222a, 223a of electrode zone 22 are corresponding provides voltage V2; For electrode zone 23 electrode 231a, 232a, 233, electrode pattern that 234a is corresponding provides voltage V3.
Further, composition graphs 4a and Fig. 4 b, touch control display apparatus comprises storage unit and electrode drive unit further, the common electric voltage obtained can be stored in the memory unit, like this, directly can obtain the common electric voltage that each described electrode zone that stores in storage unit is corresponding, then electrode drive unit directly can provide corresponding electrode zone common electric voltage.As shown in Figure 8, the electrode pattern that the described electrode pair for each described electrode zone is answered inputs common electric voltage corresponding to electrode zone described in this, also comprises:
S11 ': obtain and be stored in common electric voltage corresponding to each described electrode zone of described storage unit;
S12 ': the electrode pattern that the electrode pair that common electric voltage corresponding for each described electrode zone is supplied to each described electrode zone is answered by described electrode drive unit.
Further, each electrode zone may correspond to multiple common electric voltage, makes the flicker value of this electrode zone be less than-30 decibels, can compare again, choose the common electric voltage that flicker value is minimum, as best common electric voltage to the flicker value of common electric voltage.To a certain electrode zone, its common electric voltage and flicker value relation are as shown in Figure 9.When providing voltage Va and Vb to this electrode zone, can find out that the flicker value of its correspondence is all less than flicker threshold F0 (-30dB), Va and Vb is recorded as common electric voltage, and it can be provided to this viewing area.Flicker value corresponding for common electric voltage Va and Vb compared, the corresponding flicker value in this region of voltage Vb bottom electrode is less again, then comparatively Va, and record Vb is best common electric voltage.
After repeatedly comparing and obtaining best common electric voltage, best common electric voltage can be stored in the memory unit, like this, when needs provide common electric voltage, directly can obtain storage best common electric voltage in the memory unit, then directly provide corresponding electrode zone best common electric voltage by electrode drive unit.
It should be noted that, above embodiment can be used for reference mutually, comprehensively use.Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.
Claims (14)
1. a touch control display apparatus, comprising:
Substrate and the touch layer be positioned on described substrate; Described touch layer comprises multiple electrode pattern, the electrode wires that described electrode pattern comprises electrode and is electrically connected with described electrode;
Described touch layer also comprises multiple electrode zone, and described electrode zone at least comprises a described electrode, and the common electric voltage that the electrode in same described electrode zone is applied in is identical.
2. touch control display apparatus as claimed in claim 1, it is characterized in that, the difference of the resistance of the electrode pattern that any two electrode pairs in same described electrode zone are answered is less than 200 ohm.
3. touch control display apparatus as claimed in claim 2, it is characterized in that, described electrode zone comprises the first region territory and the second electrode region, at least there is first electrode in described the first region territory, the difference of the resistance of the electrode pattern that at least one second electrode pair in the electrode pattern that described first electrode pair is answered and described the second electrode region is answered is more than or equal to 200 ohm.
4. touch control display apparatus as claimed in claim 1, is characterized in that, applies common electric voltage corresponding to each described electrode zone, make the flicker value of each described electrode zone be less than-30 decibels to the electrode in each described electrode zone.
5. touch control display apparatus as claimed in claim 4, it is characterized in that, described touch control display apparatus also comprises the storage unit storing common electric voltage value corresponding to each described electrode zone, and described touch control display apparatus calls common electric voltage value corresponding to each described electrode zone from described storage unit and is applied to electrode in each described electrode zone.
6. touch control display apparatus as claimed in claim 1, is characterized in that, described electrode is showing the stage as public electrode; Described electrode in the touch-control stage as touch control electrode.
7. touch control display apparatus as claimed in claim 1, it is characterized in that, described touch control display apparatus also comprises electrode drive unit, the electrode pattern that the electrode pair that described electrode drive unit is each electrode zone described is answered provides the common electric voltage that each described electrode zone is corresponding, and described electrode drive unit provides driving detection signal for each described electrode pattern.
8. touch control display apparatus as claimed in claim 7, is characterized in that, described electrode drive unit also detects ground capacitance change or the change in voltage of each described electrode pattern in the described touch-control stage.
9. the driving method of a touch control display apparatus, described touch control display apparatus comprises substrate and is positioned at the touch layer on described substrate, described touch layer comprises multiple electrode pattern, the electrode wires that described electrode pattern comprises electrode and is electrically connected with described electrode, described touch layer also comprises multiple electrode zone, described electrode zone at least comprises a described electrode, and described driving method comprises:
The electrode pattern of answering for the electrode pair of each described electrode zone inputs common electric voltage corresponding to electrode zone described in this and applies identical common electric voltage to the electrode in same described electrode zone;
For each described electrode pattern provides driving detection signal, detect ground capacitance change or the change in voltage of each described electrode pattern.
10. driving method as claimed in claim 9, it is characterized in that, the difference of the resistance of the electrode pattern that any two electrode pairs in the same described electrode zone of described touch control display apparatus are answered is less than 200 ohm.
11. driving methods as claimed in claim 9, is characterized in that, described driving method also comprises the step measuring the corresponding common electric voltage of electrode zone described in each:
For electrode zone described in certain inputs a magnitude of voltage, measure the flicker value that described magnitude of voltage is corresponding;
If described flicker value is lower than-30 decibels, then record described magnitude of voltage corresponding to described flicker value and be recorded as common electric voltage corresponding to electrode zone described in this, if flicker value is greater than or equal to-30 decibels, then re-enter another magnitude of voltage, until the described flicker value corresponding to a certain magnitude of voltage of input is lower than-30 decibels.
12. driving methods as claimed in claim 9, it is characterized in that, described touch control display apparatus also comprises electrode drive unit and storage unit, and the electrode pattern that the described electrode pair for each described electrode zone is answered inputs common electric voltage corresponding to electrode zone described in this, also comprises:
Obtain and be stored in common electric voltage corresponding to each described electrode zone of described storage unit;
The electrode pattern that the electrode pair that common electric voltage corresponding for each described electrode zone is supplied to each described electrode zone is answered by described electrode drive unit.
13. driving methods as claimed in claim 11, it is characterized in that, each described electrode zone may correspond to multiple described common electric voltage, common electric voltage corresponding for minimum flicker value is recorded as the best common electric voltage that electrode zone described in this is corresponding.
14. driving methods as claimed in claim 13, it is characterized in that, described touch control display apparatus also comprises electrode drive unit and storage unit, and described driving method also comprises:
Obtain and be stored in best common electric voltage corresponding to each described electrode zone of described storage unit;
The electrode pattern that the described electrode pair that best common electric voltage corresponding for described each described electrode zone is supplied to each described electrode zone is answered by described electrode drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491022.2A CN104407728B (en) | 2014-09-23 | 2014-09-23 | A kind of touch control display apparatus and driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491022.2A CN104407728B (en) | 2014-09-23 | 2014-09-23 | A kind of touch control display apparatus and driving method |
Publications (2)
| Publication Number | Publication Date |
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| CN104407728A true CN104407728A (en) | 2015-03-11 |
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| CN106055164A (en) * | 2016-07-11 | 2016-10-26 | 武汉华星光电技术有限公司 | Touch display panel, drive circuit and drive method of touch display panel |
| 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 |
| WO2019000900A1 (en) * | 2017-06-28 | 2019-01-03 | 京东方科技集团股份有限公司 | Touch panel, and touch method and touch device thereof |
| CN110737140A (en) * | 2019-10-31 | 2020-01-31 | 厦门天马微电子有限公司 | Display panel, control method thereof and display device |
| CN113485556A (en) * | 2021-07-19 | 2021-10-08 | 京东方科技集团股份有限公司 | Display device and tactile feedback method thereof |
| US11315511B2 (en) | 2018-02-08 | 2022-04-26 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel and common electrode of the same |
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