CN101694765B - Display panel driving circuit and display panel - Google Patents
Display panel driving circuit and display panel Download PDFInfo
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- CN101694765B CN101694765B CN200910208067A CN200910208067A CN101694765B CN 101694765 B CN101694765 B CN 101694765B CN 200910208067 A CN200910208067 A CN 200910208067A CN 200910208067 A CN200910208067 A CN 200910208067A CN 101694765 B CN101694765 B CN 101694765B
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Abstract
The application discloses a display panel driving circuit, a display panel and a driving method thereof. By at least one common voltage used in the display panel, due to the characteristic of the noise coupled in a panel end, the common voltage is fed back into a pixel electrode driving module so as to generate driving voltage and further lead the driving voltage to have the noise approximate to the coupled noise of the panel end body. Therefore, when the driving voltage is inputted into the panel end by the pixel electrode driving module, the pixel electrode driving module can drive a corresponding pixel electrode by stable voltage difference, thus reducing the phenomenon of level crosstalk and improving the display quality of the display panel.
Description
[technical field]
The present invention discloses a kind of display panel, drive circuit, display panel and drive method thereof, refers to a kind of display panel, drive circuit, display panel and drive method thereof that is used for alleviating horizontal crosstalk especially.
[background technology]
In general display panel, regular meeting uses the technology of reversal of poles.See also Fig. 1, it is the simple and easy synoptic diagram that is used to explain reversal of poles in the display panel correlation technique.Synoptic diagram for the polarity of transistor array on the expression display panel shown in Figure 1; When display panel shows the pixel of each transistor correspondence; Each pixel on the display panel all can be carried out each transistorized reversal with different input voltages according to certain sequence, that is positive polarity is transformed to negative polarity or negative polarity is transformed to positive polarity etc.General reversal of poles mode comprise some counter-rotating, OK/row reverse etc., all be to be unit or to be that unit carries out reversal of poles with the pixel of row/row with the single pixel on the array of pixels on the display panel.Yet; Can when showing some special frame, cause interference of noise by the driving voltage to pixel electrode owing to be transferred to each transistorized data voltage on the display panel; And on display panel, produced disturbance (Blur) phenomenon; Therefore had influence on the display quality of display panel, this kind phenomenon also is called as horizontal crosstalk (Horizontal Crosstalk) phenomenon.
[summary of the invention]
The present invention discloses a kind of display panel, drive circuit.This display panel, drive circuit comprises the pixel electrode driver module and a Voltage Feedback module of a plurality of series connection.This Voltage Feedback module is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, at least one feedback voltage is provided this pixel electrode driver module.This at least one feedback voltage is provided by a display panel, and this pixel electrode driver module drives the pixel electrode of a correspondence according to this at least one feedback voltage that is provided.
The present invention discloses a kind of display panel that drives to alleviate the method for horizontal crosstalk.This method comprises the pixel electrode driver module that at least one feedback voltage that a display panel is provided offers the pixel electrode driver module of a plurality of series connection; And this pixel electrode driver module drives a corresponding pixel electrode according to a feedback voltage that is provided in this at least one feedback voltage.
The present invention discloses a kind of display panel.This display panel comprises a panel area and a display panel, drive circuit.This display panel, drive circuit comprises the pixel electrode driver module and a Voltage Feedback module of a plurality of series connection.This Voltage Feedback module is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, at least one feedback voltage is provided this pixel electrode driver module.This at least one feedback voltage is provided by a display panel, and this pixel electrode driver module drives the pixel electrode of a correspondence according to this at least one feedback voltage that is provided.
[description of drawings]
Fig. 1 is for being used to explain the simple and easy synoptic diagram of reversal of poles in the general display panel correlation technique.
The synoptic diagram of the display panel, drive circuit that Fig. 2 is disclosed for one first embodiment according to the present invention.
Fig. 3 is the synoptic diagram that includes a display panel of display panel, drive circuit shown in Figure 2.
Generalized schematic when Fig. 4 is display panel balances noise shown in Fig. 2.
The synoptic diagram of the display panel, drive circuit that Fig. 5 is disclosed for one second embodiment according to the present invention.
Fig. 6 is the synoptic diagram that includes a display panel of display panel, drive circuit shown in Figure 5.
The synoptic diagram of the display panel, drive circuit that Fig. 7 is disclosed for one the 3rd embodiment according to the present invention.
Fig. 8, its by the present invention exposure drive the process flow diagram of display panel with the method that alleviates horizontal crosstalk, and this method is applied to Fig. 2,5, the display panel, drive circuit shown in 7.
[primary clustering symbol description]
100,300 display panels
200,500 display panel, drive circuits
P1, P2, P3 ..., P8 ..., P15 pixel electrode driver module
C12, C22, C32 ..., C72, C82 ..., electric capacity
C152、CF
R1, R2, R3 ..., R8 ..., R15, resistance
RA1、RA2、RA3
V1, V2, V3 ..., V7, V8 ..., driving voltage
V15
FV_AC voltage
250 Voltage Feedback modules
SW1, SW2 switch
FV, FV1, FV2 common voltage
AC1, AC2 common voltage line
340 panel areas
350 buffer modules
360 voltage amplification modules
OP1, OP2 operational amplifier
The accurate position of VCOMF common voltage
602,606,608,610,612 steps
[embodiment]
The present invention discloses a kind of display panel, drive circuit, includes a display panel of this display panel, drive circuit and the driving method that is applied to this display panel, drive circuit.The display panel, drive circuit that the present invention disclosed mainly will pass through the pixel electrode driver module that each transistor that common voltage behind the display panel feeds back to display panel comprises; So that after the noise that is comprised in the common voltage is coupled into the driving voltage that the pixel electrode driver module provided, can approaches with the noise of panel end synchronously by the noise of common voltage coupling in this driving voltage and alleviate the horizontal crosstalk phenomenon.
See also Fig. 2 and Fig. 3.Figure 2 according to the present invention, a first disclosed embodiment a display panel drive circuit 200 is a schematic view, Figure 3 is shown in Figure 2 includes a display panel drive circuit 200 is a schematic view of the display panel 300 Shu.Display panel 300 shown in Figure 3 comprises a display panel, drive circuit shown in Figure 2 200 and a panel area 340.The a plurality of transistors (not illustrating) that on panel area 340, include a plurality of data lines (not illustrating), a plurality of scanning linears (not illustrating) and arrange with the array mode; Use a common voltage quasi position VCOMF on the panel area 340; With a reference potential as the driving voltage difference of judging each pixel electrode that panel area 340 is comprised, that is the driving voltage of single pixel electrode employed potential difference (PD) when the potential difference (PD) between the voltage quasi position VCOMF is this pixel electrode of actual driving jointly; Also use a common power supply ArrayCOM on the panel area 340, be used for being used as each pixel electrode employed one common voltage on the panel area 340, the accurate position of needed common voltage when being used as a transistor array that panel area 340 comprised and being used for stored voltage.For instance, when the potential difference (PD) of the single pixel electrode of above-mentioned driving was higher than common power source ArrayCOM, its polarity had been for just, and is anti-then for negative.Power supply at common power source ArrayCOM offers in the way of panel area 340, and the coupling noise that can bring the corresponding direct earth capacitance of above-mentioned each pixel electrode is in a common voltage FV.Display panel, drive circuit 200 is used for driving a plurality of transistors of being comprised on the panel area 340 and each self-corresponding pixel electrode of this a plurality of transistors, thus when driving, need import separately a driving voltage V1, V2 ..., V8 ... V15 etc.Display panel, drive circuit 200 shown in Figure 2 receives the common voltage FV that has noise on the panel area 340; So that back outputting drive voltage V1, V2 ..., V8 ... V15 is during to panel end 340, is able to noise that its noise that comprises and panel end 340 bring and approaches synchronously and alleviate the horizontal crosstalk phenomenon.
As shown in Figure 2, display panel, drive circuit 200 comprise a plurality of series connection pixel electrode driver module P1, P2, P3 ..., P8 ..., P15, an and Voltage Feedback module 250.The pixel electrode driver module P1 of a plurality of series connection, P2, P3 ..., P8 ..., P15 provides its attrition voltage by a power supply AVDO, power supply AVDO can be provided or provided by a circuit board (not illustrating) in addition by display panel 300.Voltage Feedback module 250 is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, at least one feedback voltage is provided this pixel electrode driver module, for example offers pixel electrode driver module P1 or P8 etc.; Wherein this at least one feedback voltage can be above-mentioned common voltage FV1, FV2 or a ground voltage etc.A plurality of pixel electrode driver module P1, P2, P3 ..., P8 ..., P15 each pixel electrode driver module preferably comprise an electric capacity of voltage regulation and a resistance; Wherein one first end of this electric capacity of voltage regulation is coupled to one first end of this resistance; And one second end of this electric capacity of voltage regulation is coupled to Voltage Feedback module 250, to receive this at least one benchmark feedback voltage; The effect of this electric capacity of voltage regulation mainly is to be used for stablizing with its fixing voltage difference in charging back the current potential of corresponding driving voltage.For instance, this electric capacity of voltage regulation can be capacitor C shown in Figure 2 12, C22, C32 ..., C72, C82 ..., C152, and be used for separately stabilized driving voltage V1, V2 ..., V15 current potential.This resistance can be resistance R shown in Figure 21, R2, R3 ..., R8 ..., R15 etc.As shown in Figure 2, a plurality of pixel electrode driver module P1, P2, P3 ..., P15 provide separately driving voltage V1, V2 ..., V7, V8 ..., V15 etc., to drive a pixel electrode (not icon) corresponding in each comfortable panel area 340.Note that to include a resistance R 16 on the display panel, drive circuit 200 in addition, be coupled to an end of resistance R 15, be used for being used as driving voltage V15 keep one produce voltage difference when being higher than the current potential of earth terminal resistance.
See also Fig. 4, the generalized schematic when it is 200 balances noise of display panel shown in Fig. 2.In Fig. 4; The surging that occurs among the driving voltage V1 shown in Figure 2 comes for the noise that on panel end 340, is coupled; Yet behind the current potential FV_AC that in having introduced common voltage FV, has been produced according to the electric capacity of voltage regulation C21 of correspondence, as shown in Figure 4, the potential difference (PD) between driving voltage V1 and the voltage FV_AC is Δ Vnormal not producing under the situation of noise; And under the situation that produces noise, be voltage Δ Vcoupled; And voltage Δ Vnormal and Δ Vcoupled can be quite approaching, even make the difference between driving voltage V1 and the voltage FV_AC occur under the situation of surging, still quite approach fixed value; Thus, in the time of can guaranteeing under the situation of noise takes place driving voltage V1 is accompanied by voltage FV_AC and inputs to panel area 340 together, driven pixel electrode can not receive the interference of horizontal crosstalk on the panel area 340.
See also Fig. 5 and Fig. 6.The synoptic diagram of the display panel, drive circuit 200 that Fig. 5 is disclosed for one the 3rd embodiment according to the present invention, Fig. 6 are the synoptic diagram that includes the display panel 300 of display panel, drive circuit shown in Figure 5 200.Display panel 300 shown in Figure 6 comprises display panel, drive circuit shown in Figure 5 200 and panel area 340.5th, 6 figure described embodiment and the 2nd, the main difference of the 3 described embodiment of figure are that display panel, drive circuit 200 has used a switch SW 3 at Fig. 5 than Fig. 2 more, and panel area 300 uses two common voltage FV1, FV2 corresponding to two sides about it in Fig. 6.On panel area 340, comprise one first common voltage line AC1 and one second common voltage line AC2, to provide panel area 340 needed common voltages accurate position.For example; The first common voltage line AC1 is arranged at the left side of panel area 340; And the second common voltage line AC2 is arranged at the right side of panel area 340, with in the layout that does not influence panel area 340 internal transistor arrays and consider that display panel 300 is providing the first common voltage FV1 and the second common voltage FV2 separately under the principle of its left side and the display quality on right side.The first common voltage FV1 and the second common voltage FV2 are provided by the above-mentioned common power source ArrayCOM that is coupled to display panel, drive circuit 200; And the power supply at common power source ArrayCOM offers in panel area 340 and the way through the first common voltage line AC1 and the second common voltage line AC2, and the coupling noise that can bring the corresponding direct earth capacitance of above-mentioned each pixel electrode is in common voltage FV1 and FV2.Display panel, drive circuit 200 shown in Figure 5 receives common voltage FV1 and the FV2 that has noise on the panel area 340.
The same meeting of Voltage Feedback module 250 decides according to display panel 300 different demands in processing procedure and makes first switch SW 1, second switch SW2, the conducting wherein of the 3rd switch SW 3; And after display panel 300 manufacturing finished, the state of first switch SW 1, second switch SW2, the 3rd switch SW 3 also preferably can not changed again.See through to open second switch SW2 or the 3rd switch SW 3 with common voltage FV1 or FV2 be incorporated in driving voltage V1, V2 ..., V15, will make driving voltage V1, V2 ..., the noise that when being input into panel area 340, is coupled of V15 is able to alleviated horizontal crosstalk synchronously by the noise institute that common voltage FV1 and FV2 comprise.
See Figure 7, which is according to the second embodiment of the invention disclosed by Shu display panel drive circuit 500 of FIG.As shown in Figure 7, display panel, drive circuit 500 comprises a voltage amplification module 350 and a buffer module 360 in addition compared to the display panel, drive circuit 200 shown in the 2nd, 5 figure.
In Fig. 7, buffer module 360 is used for cushioning the accurate position of common voltage VCOMF, wherein the accurate position of common voltage VCOMF with preceding the 2nd, 5 figure in definition identical, so locate to repeat no more.Voltage amplification module 350 is coupled to buffer module 360 and Voltage Feedback module 250; With the accurate position of indivedual reception common voltages VCOMF, common voltage FV1, common voltage FV2 wherein one; Wherein the function mode of Voltage Feedback module 250 is same as described above, so no longer add to give unnecessary details.Voltage amplification module 350 with common voltage accurate position VCOMF and common voltage FV1, FV2 wherein one between voltage difference amplify to produce one and amplify feedback voltage V AFB.Voltage amplification module 350 also be coupled to a plurality of pixel electrode driver module P1, P2, P3 ..., P7, P8 ..., P15 each pixel electrode driver module, with will amplify feedback voltage V AFB do not transfer to a plurality of pixel electrode driver module P1, P2, P3 ..., P7, P8 ..., P15.
The first resistance R A1 and filter capacitor CF are used for the feedback voltage that the reference voltage VCOMF that is cushioned and Voltage Feedback module 250 are provided is carried out voltage stabilizing, and the second resistance R A2 and the 3rd resistance R A3 are used for producing the dividing potential drop of amplifying feedback voltage V AFB.Voltage amplification module 350 can be amplified the voltage difference of instantaneous feedback voltage VCOMF and this at least one feedback voltage (for example common voltage FV1 or FV2) and generation amplification feedback voltage V AFB; And will amplify feedback voltage V AFB be input into a plurality of pixel electrode driver module P1 ', P2 ', P3 ' ..., P7 ', P8 ' ..., P15 ', to drive the pixel electrode of correspondence panel area 340 in.In like manner; Also have under the situation of the noise that is coupled via common voltage FV1 or FV2 at amplification feedback voltage V AFB; Via driving voltage V1, V2 ..., when V15 drives panel area 340; Will approach with the noise of panel area 340 couplings to alleviate the horizontal crosstalk phenomenon synchronously, and reach the effect of the display quality that improves display panel 300.
Display panel, drive circuit 500 shown in Figure 7 also can directly be used for replacing the display panel, drive circuit 200 that is comprised in the display panel 300 of the 3rd, 6 figure and form another embodiment of display panel of the present invention, does not add to give unnecessary details at this.
See also Fig. 8, its by the present invention exposure drive the process flow diagram of display panel with the method that alleviates horizontal crosstalk, and this method is applied to Fig. 2,5, the display panel, drive circuit shown in 7 200,500.It is following that this method comprises step:
Step 602: at least one feedback voltage that a display panel is provided offers a pixel electrode driver module of the pixel electrode driver module of a plurality of series connection;
Step 606: this pixel electrode driver module drives a corresponding pixel electrode according to a feedback voltage that is provided in this at least one feedback voltage;
Step 608: cushion a reference voltage;
Step 610: amplify the voltage difference between the feedback voltage wherein of this reference voltage and this at least one feedback voltage, amplify feedback voltage to produce one; And
Step 612: this each pixel electrode driver module drives corresponding this pixel electrode according to this amplification feedback voltage.
In the described step of Fig. 8; Step 602,606 is Fig. 2,200 enforcements of the display panel, drive circuit shown in 5; And step 602,608,610,621 is 500 enforcements of display panel, drive circuit shown in Figure 7, and related embodiment in preceding narration, so locate no longer to subjoin.So each mentioned among Fig. 8 step is carried out permutation and combination with reasonable manner or added other above-mentioned other embodiment that restrictive condition was produced that mentions, must be regarded as category of the present invention.
The present invention discloses a kind of display panel, drive circuit that alleviates horizontal crosstalk, comprises a display panel of this display panel, drive circuit, and the driving method implemented of this display panel, drive circuit.By the characteristic that has the noise that the panel end is coupled with employed at least a common voltage in the display panel; Common voltage is fed back in the pixel electrode driver module; So that driving voltage has had the coupled noise of the noise that approaches the panel end when getting into the panel end; And make the voltage difference that the pixel electrode driver module can be stable drive corresponding pixel electrode, and alleviate the phenomenon of horizontal crosstalk by this, improve the display quality of display panel.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (24)
1. display panel, drive circuit comprises:
A plurality of pixel electrode driver modules of series connection; And
One Voltage Feedback module is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, at least one feedback voltage is provided this pixel electrode driver module;
Wherein this at least one feedback voltage is provided by a display panel, and this pixel electrode driver module drives the pixel electrode of a correspondence according to this at least one feedback voltage that is provided; Wherein, this Voltage Feedback module comprises:
One first switch, one first end of this first switch is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, and one second end ground connection of this first switch; And
One second switch, one first end of this second switch is coupled to this first end of this first switch, and one second end of this second switch is coupled to the panel area that this display panel comprises, to receive one first feedback voltage in this at least one feedback voltage;
This feedback voltage is employed one a common voltage on this display panel, the accurate position of needed common voltage when being used for being used as a transistor array that this display panel comprises and being used for stored voltage.
2. display panel, drive circuit according to claim 1,
It is characterized in that; This pixel electrode driver module comprises an electric capacity of voltage regulation; One first end of this electric capacity of voltage regulation is coupled to this Voltage Feedback module receiving this at least one feedback voltage, and one second end of this electric capacity of voltage regulation is coupled to the pixel electrode that this each pixel electrode driver module is driven.
3. display panel, drive circuit according to claim 2,
It is characterized in that this pixel electrode driver module comprises a resistance in addition, and this second end of this electric capacity of voltage regulation is coupled to one first end of this resistance.
4. display panel, drive circuit according to claim 1,
It is characterized in that this display panel, drive circuit comprises a dropping resistor in addition, one first end of this dropping resistor is coupled to a pixel electrode driver module of the pixel electrode driver module of these a plurality of series connection, and one second end ground connection of this dropping resistor.
5. display panel, drive circuit according to claim 1, other comprises:
One voltage amplification module; Be coupled to this Voltage Feedback module; To receive this at least one feedback voltage; This voltage amplification module is amplified the voltage difference between the feedback voltage wherein of a common voltage quasi position and this at least one feedback voltage to produce one and is amplified feedback voltage, and this voltage amplification module also is coupled to each pixel electrode driver module of these a plurality of pixel electrode driver modules, transfers to this each pixel electrode driver module individually should amplify feedback voltage;
Wherein this each pixel electrode driver module drives this corresponding pixel electrode according to this amplification feedback voltage.
6. display panel, drive circuit according to claim 5,
It is characterized in that; Each pixel electrode driver module of these a plurality of pixel electrode driver modules comprises an electric capacity of voltage regulation; One first end of this electric capacity of voltage regulation is coupled to this voltage amplification module with this amplification feedback voltage of reception, and one second end of this electric capacity of voltage regulation is coupled to the pixel electrode that this each pixel electrode driver module is driven.
7. display panel, drive circuit according to claim 6,
It is characterized in that this pixel electrode driver module comprises a resistance in addition, and this second end of this electric capacity of voltage regulation is coupled to one first end of this resistance.
8. display panel, drive circuit according to claim 5,
It is characterized in that this display panel, drive circuit comprises a dropping resistor in addition, one first end of this dropping resistor is coupled to a pixel electrode driver module of the pixel electrode driver module of these a plurality of series connection, and one second end ground connection of this dropping resistor.
9. display panel, drive circuit according to claim 5 is characterized in that other comprises:
One buffer module is coupled to this voltage amplification module, is used for keeping in the accurate position of this common voltage.
10. display panel, drive circuit according to claim 9,
It is characterized in that this buffer module comprises:
One first operational amplifier, one of which positive input terminal are coupled to the accurate position of common voltage, and a negative input end of this first operational amplifier is coupled to an output terminal of this first operational amplifier;
Wherein this voltage amplification module comprises:
One second operational amplifier; The one of which output terminal is coupled to each pixel electrode driver module of these a plurality of pixel electrode driver modules with this amplification feedback voltage of output; And a positive input terminal of this second operational amplifier is coupled to this Voltage Feedback module, to receive this at least one feedback voltage.
11. display panel, drive circuit according to claim 10,
It is characterized in that this voltage amplification module comprises in addition:
One first resistance, one of which first end is coupled to this positive input terminal of this second operational amplifier, and one second end of this first resistance is coupled to this output terminal of this first operational amplifier;
One second resistance, one of which first end is coupled to a negative input end of this second operational amplifier, and one second end of this second resistance is coupled to this second end of this first resistance;
One the 3rd resistance, one of which first end is coupled to this negative input end of this second operational amplifier, and one second end of the 3rd resistance is coupled to this output terminal of this second operational amplifier; And
One filter capacitor, one of which first end is coupled to this positive input terminal of this second operational amplifier, and one second end ground connection of this filter capacitor.
12. display panel, drive circuit according to claim 5,
It is characterized in that the accurate position of this common voltage is a reference potential of the driving voltage difference of a pixel electrode, and a driving voltage of single pixel electrode employed potential difference (PD) when being this pixel electrode of actual driving with potential difference (PD) between the accurate position of this common voltage.
13. a display panel comprises:
One panel area; And
One display panel, drive circuit comprises:
A plurality of pixel electrode driver modules of series connection; And
One Voltage Feedback module is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, at least one feedback voltage is provided this pixel electrode driver module;
Wherein this at least one feedback voltage is provided by this panel area, and this pixel electrode driver module drives the pixel electrode of a correspondence according to this at least one feedback voltage that is provided; This Voltage Feedback module comprises:
One first switch, one first end of this first switch is coupled to a pixel electrode driver module of these a plurality of pixel electrode driver modules, and one second end ground connection of this first switch; And
One second switch, one first end of this second switch is coupled to this first end of this first switch, and one second end of this second switch is coupled to this panel area that this display panel comprises, to receive one first feedback voltage in this at least one feedback voltage;
This feedback voltage is employed one a common voltage on this panel area, the accurate position of needed common voltage when being used for being used as a transistor array that this panel area comprises and being used for stored voltage.
14. display panel according to claim 13,
It is characterized in that; This pixel electrode driver module comprises an electric capacity of voltage regulation; One first end of this electric capacity of voltage regulation is coupled to this Voltage Feedback module receiving this at least one feedback voltage, and one second end of this electric capacity of voltage regulation is coupled to the pixel electrode that this each pixel electrode driver module is driven.
15. display panel according to claim 14,
It is characterized in that this pixel electrode driver module comprises a resistance in addition, and this second end of this electric capacity of voltage regulation is coupled to one first end of this resistance.
16. display panel according to claim 13,
It is characterized in that this display panel, drive circuit comprises a dropping resistor in addition, one first end of this dropping resistor is coupled to a pixel electrode driver module of the pixel electrode driver module of these a plurality of series connection, and one second end ground connection of this dropping resistor.
17. display panel according to claim 13, other comprises:
One voltage amplification module; Be coupled to this Voltage Feedback module; To receive this at least one feedback voltage; This voltage amplification module is amplified the voltage difference between the feedback voltage wherein of a common voltage quasi position and this at least one feedback voltage to produce one and is amplified feedback voltage, and this voltage amplification module also is coupled to each pixel electrode driver module of these a plurality of pixel electrode driver modules, transfers to this each pixel electrode driver module individually should amplify feedback voltage;
Wherein this each pixel electrode driver module drives this corresponding pixel electrode according to this amplification feedback voltage.
18. display panel according to claim 17,
It is characterized in that; Each pixel electrode driver module of these a plurality of pixel electrode driver modules comprises an electric capacity of voltage regulation; One first end of this electric capacity of voltage regulation is coupled to this voltage amplification module with this amplification feedback voltage of reception, and one second end of this electric capacity of voltage regulation is coupled to the pixel electrode that this each pixel electrode driver module is driven.
19. display panel according to claim 18,
It is characterized in that this pixel electrode driver module comprises a resistance in addition, and this second end of this electric capacity of voltage regulation is coupled to one first end of this resistance.
20. display panel according to claim 17,
It is characterized in that this display panel, drive circuit comprises a dropping resistor in addition, one first end of this dropping resistor is coupled to a pixel electrode driver module of the pixel electrode driver module of these a plurality of series connection, and one second end ground connection of this dropping resistor.
21. display panel according to claim 17 is characterized in that, other comprises:
One buffer module is coupled to this voltage amplification module, is used for keeping in the accurate position of this common voltage.
22. display panel according to claim 21,
It is characterized in that this buffer module comprises:
One first operational amplifier, one of which positive input terminal are coupled to the accurate position of common voltage, and a negative input end of this first operational amplifier is coupled to an output terminal of this first operational amplifier;
Wherein this voltage amplification module comprises:
One second operational amplifier; The one of which output terminal is coupled to each pixel electrode driver module of these a plurality of pixel electrode driver modules with this amplification feedback voltage of output; And a positive input terminal of this second operational amplifier is coupled to this Voltage Feedback module, to receive this at least one feedback voltage.
23. display panel according to claim 21,
It is characterized in that this voltage amplification module comprises in addition:
One first resistance, one of which first end is coupled to this positive input terminal of this second operational amplifier, and one second end of this first resistance is coupled to this output terminal of this first operational amplifier;
One second resistance, one of which first end is coupled to a negative input end of this second operational amplifier, and one second end of this second resistance is coupled to this second end of this first resistance;
One the 3rd resistance, one of which first end is coupled to this negative input end of this second operational amplifier, and one second end of the 3rd resistance is coupled to this output terminal of this second operational amplifier; And
One filter capacitor, one of which first end is coupled to this positive input terminal of this second operational amplifier, and one second end ground connection of this filter capacitor.
24. display panel according to claim 17,
It is characterized in that the accurate position of this common voltage is a reference potential of the driving voltage difference of a pixel electrode, and a driving voltage of single pixel electrode employed potential difference (PD) when being this pixel electrode of actual driving with potential difference (PD) between the accurate position of this common voltage.
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| US9412322B2 (en) | 2011-04-14 | 2016-08-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display device and method for driving same |
| CN103065594B (en) * | 2012-12-14 | 2017-04-12 | 深圳市华星光电技术有限公司 | Data driving circuit, liquid crystal display device and driving method |
| US9135882B2 (en) | 2012-12-14 | 2015-09-15 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Data driver circuit having compensation module, LCD device and driving method |
| TWI541791B (en) * | 2015-09-30 | 2016-07-11 | 友達光電股份有限公司 | Blue phase liquid crystal display apparatus |
| US9847053B2 (en) * | 2016-02-05 | 2017-12-19 | Novatek Microelectronics Corp. | Display apparatus, gate driver and operation method thereof |
| CN105575356A (en) | 2016-03-21 | 2016-05-11 | 京东方科技集团股份有限公司 | Pixel electrode voltage processing circuit and display apparatus |
| CN106023877B (en) * | 2016-08-15 | 2019-02-19 | 京东方科技集团股份有限公司 | Common electrical voltage regulator circuit, method, display panel and device |
| CN110890075A (en) * | 2019-11-15 | 2020-03-17 | Tcl华星光电技术有限公司 | Driving method, display panel and display device |
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