CN106444188A - Display substrate, driving method thereof and display device - Google Patents
Display substrate, driving method thereof and display device Download PDFInfo
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- CN106444188A CN106444188A CN201610855560.4A CN201610855560A CN106444188A CN 106444188 A CN106444188 A CN 106444188A CN 201610855560 A CN201610855560 A CN 201610855560A CN 106444188 A CN106444188 A CN 106444188A
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- 239000000758 substrate Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008901 benefit Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000001151 other effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Human Computer Interaction (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a display substrate, a driving method thereof and a display device. The display substrate comprises a substrate body, a plurality of public electrode patterns, a plurality of first compensation units and a plurality of second compensation units, wherein the public electrode patterns, the first compensation units and the second compensation units are located on the substrate body. The first compensation units are used for boosting public voltage to reference voltage under the control of first compensation voltage output by a first compensation signal line when the public voltage output by a public electrode signal line is lower than the reference voltage. The second compensation units are used for reducing the public voltage to the reference voltage under the control of second compensation voltage output by a second compensation signal line when the public voltage output by the public electrode signal line is higher than the reference voltage. Abnormity of display is avoided, so image quality of the display device is improved; influences of fluctuation of public voltage on tough control signals in the touch control stage are avoided, and accordingly failure of the touch control function is avoided.
Description
Technical field
The present invention relates to display technology field, particularly to a kind of display base plate and its driving method and display device.
Background technology
The public electrode of embedded touch display unit is individually controlled by different passages, relatively believes be more susceptible to other
The impact of number change so that display occur abnormal.
After abnormal show gradually accumulates, impact can be produced on liquid crystal, the isostructural ion distribution of both alignment layers in box, and then
So that the touch signal in touch-control stage is also changed, affect touch controllable function, thus leading to touch controllable function to lose efficacy.
Content of the invention
The present invention provides a kind of display base plate and its driving method and display device, for improving the picture product of display device
Matter and avoid touch controllable function lost efficacy.
For achieving the above object, the invention provides a kind of display base plate, including：Underlay substrate with positioned at described substrate base
Multiple common pattern of electrodes on plate, multiple first compensating unit and multiple second compensating unit, each common pattern of electrodes
Connect to corresponding common electrode signal line, first compensating unit corresponding with common pattern of electrodes connects to corresponding common electrical
Pole holding wire and the first thermal compensation signal line, second compensating unit corresponding with common pattern of electrodes connects to corresponding public electrode
Holding wire and the second thermal compensation signal line；
Described first compensating unit, for when the common electric voltage that common electrode signal line exports be less than reference voltage when,
Under the control of the first offset voltage of the first thermal compensation signal line output, common electric voltage is drawn high to reference voltage；
Described second compensating unit, for when the common electric voltage that common electrode signal line exports be higher than reference voltage when,
Under the control of the second offset voltage of the second thermal compensation signal line output, common electric voltage is pulled low to reference voltage.
Alternatively, described first compensating unit includes first switch pipe, and the control pole of described first switch pipe connects to
One thermal compensation signal line, the first pole of described first switch pipe connects to the first thermal compensation signal line, and the second of described first switch pipe
Pole connects to corresponding common electrode signal line.
Alternatively, described second compensating unit includes second switch pipe, and the control pole of described second switch pipe connects to right
The common electrode signal line answered, the first pole of described second switch pipe connects to the second thermal compensation signal line, described second switch pipe
The second pole connect to corresponding common electrode signal line.
Alternatively, described first offset voltage is higher than described reference voltage, and described second offset voltage is less than described ginseng
Examine voltage.
Alternatively, described first offset voltage is adjusted according to described reference voltage, and described second offset voltage is according to described
Reference voltage is adjusted.
Alternatively, described first offset voltage and the difference of described reference voltage are equal to described reference voltage and described second
The difference of offset voltage.
Alternatively, described first offset voltage is electric equal to the threshold value of described first switch pipe with the difference of described reference voltage
Pressure.
Alternatively, described reference voltage is electric equal to the threshold value of described second switch pipe with the difference of described second offset voltage
Pressure.
For achieving the above object, the invention provides a kind of display device, including：Drive circuit, common electrode signal line,
First thermal compensation signal line, the second thermal compensation signal line and the counter substrate being oppositely arranged and above-mentioned display base plate；
Described common electrode signal line is also connected with described drive circuit, described first thermal compensation signal line also with described driving
Circuit connects, and the second thermal compensation signal line is also connected with described drive circuit.
For achieving the above object, the invention provides a kind of driving method of display base plate, described display base plate includes：Lining
Substrate and the multiple common pattern of electrodes on described underlay substrate, multiple first compensating unit and multiple second compensation
Unit, each common pattern of electrodes connects to corresponding common electrode signal line, first compensating unit corresponding with public electrode
Connect to corresponding common electrode signal line and the first thermal compensation signal line, second compensating unit corresponding with public electrode connect to
Corresponding common electrode signal line and the second thermal compensation signal line；
Methods described includes：
Described first compensating unit, when the common electric voltage that common electrode signal line exports is less than reference voltage, is mended first
Under the control of the first offset voltage repaying holding wire output, common electric voltage is drawn high to reference voltage；
Described second compensating unit, when the common electric voltage that common electrode signal line exports is higher than reference voltage, is mended second
Under the control of the second offset voltage repaying holding wire output, common electric voltage is pulled low to reference voltage.
The invention has the advantages that：
In the technical scheme of the display base plate of present invention offer and its driving method and display device, it is subject in common electric voltage
Automatically, common electric voltage can be adjusted to reference voltage during the change of other effect of signals, it is to avoid exception in display, thus carrying
The high picture quality of display device；It is subject to other effect of signals can automatically will be public when changing in common electric voltage in the present invention
Voltage-regulation is to reference voltage, it is to avoid the impact of the touching signals to the touch-control stage for the fluctuation of common electric voltage, thus avoid
Touch controllable function lost efficacy.
Brief description
A kind of structural representation of display base plate that Fig. 1 provides for the embodiment of the present invention one；
Fig. 2 is a kind of operating diagram of the first compensating unit and the second compensating unit in Fig. 1；
Fig. 3 is another kind of operating diagram of the first compensating unit and the second compensating unit in Fig. 1；
Fig. 4 is the signal timing diagram of display base plate in Fig. 1；
Fig. 5 is the schematic diagram of the compensation process of the first compensating unit and the second compensating unit in Fig. 3；
A kind of structural representation of display device that Fig. 6 provides for the embodiment of the present invention two.
Specific embodiment
For making those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings the present invention is carried
For display base plate and its being described in detail of driving method and display device.
A kind of structural representation of display base plate that Fig. 1 provides for the embodiment of the present invention one, as shown in figure 1, this display base
Plate includes：Underlay substrate and the multiple common pattern of electrodes 1 on underlay substrate, multiple first compensating unit 2 and multiple
Second compensating unit 3, each common pattern of electrodes 1 connects to corresponding common electrode signal line Lcom, with common pattern of electrodes 1
Corresponding first compensating unit 2 connects to corresponding common electrode signal line Lcom and the first thermal compensation signal line LA, with common electrical
Corresponding second compensating unit 3 of pole figure shape 1 connects to corresponding common electrode signal line Lcom and the second thermal compensation signal line LB.The
One compensating unit 2 is used for, when the common electric voltage of common electrode signal line Lcom output is less than reference voltage, compensating letter first
Under the control of the first offset voltage of number line LA output, common electric voltage is drawn high to reference voltage；Second compensating unit 3 is used for working as
When the common electric voltage of common electrode signal line Lcom output is higher than reference voltage, in the second benefit of the second thermal compensation signal line LB output
Under the control repaying voltage, common electric voltage is pulled low to reference voltage.
Wherein, underlay substrate is not shown in figure.
Fig. 2 is a kind of operating diagram of the first compensating unit and the second compensating unit in Fig. 1, and Fig. 3 is the first benefit in Fig. 1
Repay another kind of operating diagram of unit and the second compensating unit, as shown in Figure 1, Figure 2 and Figure 3, the first compensating unit 2 includes
One switch transistor T 1, the control pole of first switch pipe T1 connects to the first thermal compensation signal line LA, and first pole of first switch pipe T1 is even
It is connected to the first thermal compensation signal line LA, second pole of first switch pipe T1 connects to corresponding common electrode signal line Lcom；Second
Compensating unit 3 includes second switch pipe T2, and the control pole of second switch pipe T2 connects to corresponding common electrode signal line Lcom,
First pole of second switch pipe T2 connects to the second thermal compensation signal line LB, and second pole of second switch pipe T2 connects to corresponding public affairs
Common electrode holding wire Lcom.In the present embodiment, first switch pipe T1 is TFT, and second switch pipe T2 is TFT.
Fig. 4 is the signal timing diagram of display base plate in Fig. 1, as shown in figure 4, the first offset voltage VA is higher than reference voltage
Vcom, and the second offset voltage VB is less than reference voltage Vcom.Preferably, the difference of the first offset voltage VA and reference voltage Vcom
Value is equal to the difference of reference voltage Vcom and the second offset voltage VB, and pressure reduction formula is：VdeltaA=VA-Vcom=VdeltaB
=Vcom-VB, wherein, VdeltaA is the difference of the first offset voltage VA and reference voltage Vcom, and VdeltaB is reference voltage
Vcom and the difference of the second offset voltage VB.For example：If during VdeltaA=VdeltaB=10V, VA=5V, VB=-5V, Vcom
=0V.VdeltaA is directly proportional to the breadth length ratio of first switch pipe T1, and VdeltaB is directly proportional to the breadth length ratio of second switch pipe T2,
Therefore the electric current of first switch pipe T1 is directly proportional to the breadth length ratio of first switch pipe T1, and the electric current of second switch pipe T2 is opened with second
The breadth length ratio closing pipe T2 is directly proportional.In the present embodiment, by setting the breadth length ratio of first switch pipe T1 and second switch pipe T2
Breadth length ratio reaches the purpose of electric current when controlling first switch pipe T1 and second switch pipe T2 work and stopping, thus reaching quick
Reduce the purpose of leakage current when compensating and quitting work, and then reduce power consumption.
In the present embodiment, the first offset voltage VA is adjusted according to reference voltage Vcom, and the second offset voltage VB is according to reference
Voltage Vcom is adjusted.Specifically, the first offset voltage VA and the difference of reference voltage Vcom preset, reference voltage Vcom with
The difference of the second offset voltage VB presets, and the therefore first offset voltage VA is electric with the difference of reference voltage Vcom and reference
Pressure Vcom is changeless with the difference of the second offset voltage VB, and now when reference voltage Vcom changes, first compensates electricity
Pressure VA and the second offset voltage VB also will be adjusted according to reference voltage Vcom, to ensure the first offset voltage VA and reference electricity
The difference of the difference of pressure Vcom and the second offset voltage VB is constant.So that each small-size product can be independently arranged reference
Voltage Vcom, and still can be with normal work in the case of being independently arranged reference voltage Vcom.
Work process below by the display stage of Fig. 2, Fig. 3 and Fig. 4 display base plate to the present embodiment is carried out in detail
Description.
In the present embodiment, the first offset voltage VA is equal to first switch pipe T1 with difference VdeltaA of reference voltage Vcom
Threshold voltage, difference VdeltaB of reference voltage Vcom and the second offset voltage VB is equal to the threshold value electricity of second switch pipe T2
Pressure.
As shown in Figure 2 and Figure 4, when the common electric voltage of common electrode signal line Lcom output is less than reference voltage Vcom,
The difference of the common electric voltage that the first offset voltage VA is exported with common electrode signal line Lcom is more than the threshold value of first switch pipe T1
Voltage, first switch pipe T1 opens under the control of the first offset voltage VA that the first thermal compensation signal line LA exports, then the first electricity
Stream flows to common electrode signal line Lcom from the first thermal compensation signal line LA by first switch pipe T1.Due to common electrode signal line
The common electric voltage of Lcom output is less than reference voltage Vcom, the common electric voltage of common electrode signal line Lcom output and the second compensation
The difference of voltage VB is less than the threshold voltage of second switch pipe T2, then second switch pipe T2 closes, and does not now have electric current from public
Electrode signal line Lcom flows to the second thermal compensation signal line LB.First electric current flows into common electrode signal line Lcom, will be public
Voltage high is to reference voltage Vcom.
As shown in Figure 3 and Figure 4, when the common electric voltage of common electrode signal line Lcom output is higher than reference voltage, first
The difference of the common electric voltage that offset voltage VA is exported with common electrode signal line Lcom is less than the threshold voltage of first switch pipe T1,
Then first switch pipe T1 closes, and does not now have electric current to flow to common electrode signal line Lcom from the first thermal compensation signal line LA.Due to
The common electric voltage of common electrode signal line Lcom output is higher than reference voltage Vcom, and it is public that common electrode signal line Lcom exports
The difference of voltage and the second offset voltage VB is more than the threshold voltage of second switch pipe T2, and second switch pipe T2 believes in public electrode
Open under the control of common electric voltage of number line Lcom output, then the second electric current passes through second switch from common electrode signal line Lcom
Pipe T2 flows to the second thermal compensation signal line LB.Second electric current flows out from common electrode signal line Lcom, and common electric voltage is pulled low to
Reference voltage Vcom.
Common electrode signal line Lcom passes through second switch pipe T2 output and compensates electric current, and common electric voltage is pulled low to reference
Voltage Vcom.
Fig. 5 is the schematic diagram of the compensation process of the first compensating unit and the second compensating unit in Fig. 3, as shown in figure 5, passing through
Experiment draws the curve (dotted line) that common electric voltage is pulled low in the present embodiment reference voltage Vcom, and draws in prior art
Public electrode common electric voltage is pulled low to the curve (solid line) of reference voltage Vcom, compared with prior art, the present embodiment can
More quickly common electric voltage is pulled low to reference voltage Vcom.
In the present embodiment, common electrode signal line Lcom will draw high to reference voltage Vcom or be pulled low to reference voltage
The common electric voltage of Vcom exports to corresponding common pattern of electrodes.
In the present embodiment, display base plate can be applicable to touch display unit, then in display stage common pattern of electrodes 1 conduct
Public electrode, in touch-control stage common pattern of electrodes 1 as touch drive electrode.In the stage of touch, the first thermal compensation signal line LA
It is in hanging (floating) state, the second thermal compensation signal line LB is in vacantly (floating) state.
In the present embodiment, each common pattern of electrodes correspond to first compensating unit and the second compensating unit, first
Compensating unit and the second compensating unit can achieve and carry out separate compensation to corresponding common pattern of electrodes, such that it is able to effectively right
The display quality of various display pictures is improved.
In the technical scheme of display base plate that the present embodiment provides, the first compensating unit works as the output of common electrode signal line
Common electric voltage is less than and draws common electric voltage under the control of the first offset voltage of the first thermal compensation signal line output during reference voltage
Up to reference voltage, the second compensating unit is when the common electric voltage that common electrode signal line exports is higher than reference voltage in the second benefit
Under the control of the second offset voltage repaying holding wire output, common electric voltage is pulled low to reference voltage, is subject to other in common electric voltage
Automatically, common electric voltage can be adjusted to reference voltage during effect of signals change, it is to avoid exception in display, thus improve
The picture quality of display device.Can be automatically by common electrical when common electric voltage is subject to the change of other effect of signals in the present embodiment
Pressure is adjusted to reference voltage, it is to avoid the impact of the touching signals to the touch-control stage for the fluctuation of common electric voltage, thus avoid tactile
Control disabler.
A kind of structural representation of display device that Fig. 6 provides for the embodiment of the present invention two, as shown in fig. 6, this display dress
Put including：Drive circuit 4, common electrode signal line Vcom, the first thermal compensation signal line LA, the second thermal compensation signal line LB are set with relative
The counter substrate put and above-mentioned display base plate, common electrode signal line Vcom is also connected with drive circuit 4, the first thermal compensation signal line
LA is also connected with drive circuit 4, and the second thermal compensation signal line LB is also connected with drive circuit 4.
Counter substrate is not shown in figure, and display base plate can adopt the display base plate of above-described embodiment one, no longer superfluous herein
State.Wherein, display base plate is array base palte, and counter substrate is color membrane substrates, and display device is touch display unit.
In the present embodiment, drive circuit 4 is to drive IC.
In the technical scheme of display device that the present embodiment provides, the first compensating unit works as the output of common electrode signal line
Common electric voltage is less than and draws common electric voltage under the control of the first offset voltage of the first thermal compensation signal line output during reference voltage
Up to reference voltage, the second compensating unit is when the common electric voltage that common electrode signal line exports is higher than reference voltage in the second benefit
Under the control of the second offset voltage repaying holding wire output, common electric voltage is pulled low to reference voltage, is subject to other in common electric voltage
Automatically, common electric voltage can be adjusted to reference voltage during effect of signals change, it is to avoid exception in display, thus improve
The picture quality of display device.Can be automatically by common electrical when common electric voltage is subject to the change of other effect of signals in the present embodiment
Pressure is adjusted to reference voltage, it is to avoid the impact of the touching signals to the touch-control stage for the fluctuation of common electric voltage, thus avoid tactile
Control disabler.
The invention provides a kind of driving method of display base plate, display base plate includes：Underlay substrate with positioned at described lining
Multiple common pattern of electrodes on substrate, multiple first compensating unit and multiple second compensating unit, each public electrode
Figure connects to corresponding common electrode signal line, and first compensating unit corresponding with public electrode connects to corresponding common electrical
Pole holding wire and the first thermal compensation signal line, second compensating unit corresponding with public electrode connects to corresponding common electrode signal
Line and the second thermal compensation signal line.
Methods described includes：
Described first compensating unit, when the common electric voltage that common electrode signal line exports is less than reference voltage, is mended first
Under the control of the first offset voltage repaying holding wire output, common electric voltage is drawn high to reference voltage；
Described second compensating unit, when the common electric voltage that common electrode signal line exports is higher than reference voltage, is mended second
Under the control of the second offset voltage repaying holding wire output, common electric voltage is pulled low to reference voltage.
The driving method of the display base plate that the present embodiment provides can be used for the display base plate driving above-described embodiment one to provide.
In the technical scheme of the driving method of display base plate that the present embodiment provides, the first compensating unit is worked as public electrode and is believed
The common electric voltage of number line output is less than during reference voltage will under the control of the first offset voltage of the first thermal compensation signal line output
Common electric voltage is drawn high to reference voltage, and the common electric voltage that the second compensating unit works as the output of common electrode signal line is higher than reference voltage
When second thermal compensation signal line output the second offset voltage control under common electric voltage is pulled low to reference voltage, in common electrical
Pressure is subject to automatically to adjust common electric voltage to reference voltage during the change of other effect of signals, it is to avoid display occurs extremely,
Thus improve the picture quality of display device.Can be certainly when common electric voltage is subject to the change of other effect of signals in the present embodiment
Dynamic common electric voltage is adjusted to reference voltage, it is to avoid the impact of the touching signals to the touch-control stage for the fluctuation of common electric voltage, from
And avoid touch controllable function and lost efficacy.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a kind of display base plate is it is characterised in that include：Underlay substrate and the multiple common electrical on described underlay substrate
Pole figure shape, multiple first compensating unit and multiple second compensating unit, each common pattern of electrodes connects to corresponding common electrical
Pole holding wire, first compensating unit corresponding with common pattern of electrodes connects to corresponding common electrode signal line and the first compensation
Holding wire, second compensating unit corresponding with common pattern of electrodes connects to compensate to corresponding common electrode signal line and second to be believed
Number line；
Described first compensating unit, for when the common electric voltage that common electrode signal line exports is less than reference voltage, first
Under the control of the first offset voltage of thermal compensation signal line output, common electric voltage is drawn high to reference voltage；
Described second compensating unit, for when the common electric voltage that common electrode signal line exports is higher than reference voltage, second
Under the control of the second offset voltage of thermal compensation signal line output, common electric voltage is pulled low to reference voltage.
2. display base plate according to claim 1 is it is characterised in that described first compensating unit includes first switch pipe,
The control pole of described first switch pipe connects to the first thermal compensation signal line, and the first pole of described first switch pipe connects to the first benefit
Repay holding wire, the second pole of described first switch pipe connects to corresponding common electrode signal line.
3. display base plate according to claim 1 is it is characterised in that described second compensating unit includes second switch pipe,
The control pole of described second switch pipe connects to corresponding common electrode signal line, the first pole of described second switch pipe connect to
Second thermal compensation signal line, the second pole of described second switch pipe connects to corresponding common electrode signal line.
4. display base plate according to claim 1 is it is characterised in that described first offset voltage is higher than described with reference to electricity
Pressure, and described second offset voltage is less than described reference voltage.
5. display base plate according to claim 1 is it is characterised in that described first offset voltage is according to described reference voltage
Adjust, described second offset voltage is adjusted according to described reference voltage.
6. display base plate according to claim 1 is it is characterised in that described first offset voltage and described reference voltage
Difference is equal to the difference of described reference voltage and described second offset voltage.
7. display base plate according to claim 2 is it is characterised in that described first offset voltage and described reference voltage
Difference is equal to the threshold voltage of described first switch pipe.
8. display base plate according to claim 3 is it is characterised in that described reference voltage and described second offset voltage
Difference is equal to the threshold voltage of described second switch pipe.
9. a kind of display device is it is characterised in that include：Drive circuit, common electrode signal line, the first thermal compensation signal line,
Two thermal compensation signal lines and the display base plate described in the counter substrate being oppositely arranged and claim 1 to 8；
Described common electrode signal line is also connected with described drive circuit, described first thermal compensation signal line also with described drive circuit
Connect, the second thermal compensation signal line is also connected with described drive circuit.
10. a kind of driving method of display base plate is it is characterised in that described display base plate includes：Underlay substrate with positioned at described
Multiple common pattern of electrodes on underlay substrate, multiple first compensating unit and multiple second compensating unit, each common electrical
Pole figure shape connects to corresponding common electrode signal line, and first compensating unit corresponding with public electrode connects to corresponding public
Electrode signal line and the first thermal compensation signal line, second compensating unit corresponding with public electrode connects to corresponding public electrode letter
Number line and the second thermal compensation signal line；
Methods described includes：
Described first compensating unit, when the common electric voltage that common electrode signal line exports is less than reference voltage, compensates letter first
Under the control of the first offset voltage of number line output, common electric voltage is drawn high to reference voltage；
Described second compensating unit, when the common electric voltage that common electrode signal line exports is higher than reference voltage, compensates letter second
Under the control of the second offset voltage of number line output, common electric voltage is pulled low to reference voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610855560.4A CN106444188B (en) | 2016-09-27 | 2016-09-27 | Display substrate, driving method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610855560.4A CN106444188B (en) | 2016-09-27 | 2016-09-27 | Display substrate, driving method thereof and display device |
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| WO2019141002A1 (en) * | 2018-01-16 | 2019-07-25 | 京东方科技集团股份有限公司 | Voltage drive method and device for touch display panel, and touch display panel |
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