CN105609038A - Driving signal compensation method, driving signal compensation circuit and display panel - Google Patents
Driving signal compensation method, driving signal compensation circuit and display panel Download PDFInfo
- Publication number
- CN105609038A CN105609038A CN201610090303.6A CN201610090303A CN105609038A CN 105609038 A CN105609038 A CN 105609038A CN 201610090303 A CN201610090303 A CN 201610090303A CN 105609038 A CN105609038 A CN 105609038A
- Authority
- CN
- China
- Prior art keywords
- signal
- voltage
- output
- magnitude
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
Abstract
The invention discloses a driving signal compensation method, a driving signal compensation circuit and a display panel. The method comprises steps that voltage division processing on a first power source signal and a second power source signal is carried out to generate N voltage signals; the N voltage signals are outputted according to voltage values from large to small and output distances of the driving signals from large to small. Uniformity of the driving signals can be improved through outputting the driving signals with different magnitudes on the basis of the output distances of the driving signals; as the driving signals are mainly changed through changing power source voltage signals, voltage division processing on the power source signals can be carried out to form the multiple voltage signals with different voltage values, the corresponding voltage signals are selected for output according to the output distances of the driving signals, the voltage signal having the largest voltage value is selected to output for the largest output distance, and so on, as the output distances decrease, the voltage values of the outputted voltage signals decrease, so uniformity of the driving signals can be improved, and brightness uniformity of the display panel is improved.
Description
Technical field
The present invention relates to Display Technique field, relate in particular to a kind of compensation method, compensating circuit that drives signalAnd display floater.
Background technology
Along with the development of Display Technique, Display Technique is widely used in TV, mobile phone and public informationShow, widelyd popularize because of the advantage of its ultra-thin energy-saving for the flat-panel monitor of display frame.
Current large-sized display floater, because panel size is larger, outputs to the driving signal of display floaterTransmission range longer, therefore, identical driving signal outputs to the zones of different on display floater, along withThe increase of transmission range, drives the loss of signal also constantly to increase, and causes driving signal to go out in transmitting procedureThe loss of existing inequality. On final display floater, zones of different drives the luminous driving signal of display floater to existThe problem that homogeneity is poor, and then cause the display brightness homogeneity of display floater poor, at display floaterThe proximal end region that upper distance signal output is nearer and distance signal output remote area far away, display surfaceThe display brightness difference of plate, has affected the display effect of display frame, has reduced the comfortableness that user uses.
Therefore, how to improve the homogeneity that drives the luminous driving signal of display floater, thereby improve display surfaceThe homogeneity of the display brightness of plate is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The embodiment of the present invention provides a kind of compensation method, compensating circuit and display floater that drives signal, usesTo solve the poor problem of homogeneity of the luminous driving signal of the driving display floater that exists in prior art.
The embodiment of the present invention provides a kind of compensation method that drives signal, comprising:
The first power supply signal and second source signal are carried out to voltage division processing, generate N voltage signal; Wherein,N is more than or equal to 2 integer, and the magnitude of voltage of described the first power supply signal is greater than described second source signalMagnitude of voltage, the magnitude of voltage of N described voltage signal be more than or equal to described second source signal magnitude of voltage andBe less than or equal to the different magnitudes of voltage of the magnitude of voltage of described the first power supply signal;
According to the output distance that drives signal by as far as closely by N described voltage signal according to magnitude of voltage from greatlyTo little output.
In a kind of possible embodiment, in the above-mentioned compensation method that the embodiment of the present invention provides, described generalThe first power supply signal and second source signal carry out voltage division processing, generate N voltage signal, comprising:
Described the first power supply signal and described second source signal are carried out to electric resistance partial pressure processing, generate N electricityPress signal.
In a kind of possible embodiment, in the above-mentioned compensation method that the embodiment of the present invention provides, described pressingAccording to the output distance that drives signal by as far as closely by defeated from big to small according to magnitude of voltage N described voltage signalGo out, comprising:
Table look-up according to default, determine in N described voltage signal and drive the output of signal apart from corresponding electricityPress signal output;
Wherein, described default tabling look-up comprises: N described voltage signal arranged from small to large according to magnitude of voltage,The corresponding default spacing of each described voltage signal, the grid line institute that each described default spacing is predetermined numberThe spacing of crossing over.
In a kind of possible embodiment, in the above-mentioned compensation method that the embodiment of the present invention provides, also comprise:
The N of generation described voltage signal carried out to voltage stabilizing processing.
The embodiment of the present invention provides a kind of compensation that adopts the above-mentioned driving signal that the embodiment of the present invention providesThe compensating circuit of method, comprising: division module and output module; Wherein,
The first input end of described division module is used for inputting the first power supply signal, and the second input is for inputSecond source signal, described division module is for entering described the first power supply signal and described second source signalRow voltage division processing, generates the voltage signal that N is different and outputs to respectively N of described division module defeatedGo out end; Described output is exported N described voltage signal respectively; Wherein, N be more than or equal to 2 wholeNumber, the magnitude of voltage of described the first power supply signal is greater than the magnitude of voltage of described second source signal, N described electricityPressing the value of signal is to be more than or equal to the magnitude of voltage of described second source signal and to be less than or equal to described the first power supplyThe different magnitudes of voltage of the magnitude of voltage of signal;
Described output module for the output distance according to driving signal by as far as closely N described voltage being believedNumber export by output from big to small according to magnitude of voltage.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, also comprise:The output Voltage stabilizing module one to one of N and described division module;
Described Voltage stabilizing module carry out voltage stabilizing place for N the described voltage signal that described division module is generatedManage and output to described output module.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, described pointDie block comprises: the resistance of multiple series connection;
One end of first resistance is used for inputting described the first power supply signal, and one end of last resistance is used forInput described second source signal; An output is respectively drawn in junction between two adjacent resistance.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, described steadyDie block comprises: voltage stabilizing amplifier;
The positive input of described voltage stabilizing amplifier is connected with the output of corresponding described division module, negative senseInput is connected with the output of self, and output is connected with the input of corresponding described output module, theOne power end access positive power signal, second source termination enters ground power supply signal.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, described defeatedGo out module, comprising: determining unit, memory cell and output unit; Wherein,
Described memory cell is used for storing default tabling look-up;
Described determining unit, for tabling look-up according to the default of described cell stores, is determined N described voltageIn signal, output to driving the output of signal apart from corresponding voltage signal and generate corresponding control signalDescribed output unit;
Described output unit is for selecting corresponding voltage letter according to the control signal of described determining unit outputNumber output;
Wherein, described default tabling look-up comprises: N described voltage signal arranged from small to large according to magnitude of voltage,The corresponding default spacing of each described voltage signal, the grid line institute that each described default spacing is predetermined numberThe spacing of crossing over.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, described defeatedGo out unit and comprise multiple switches, the corresponding one group of series connection of N voltage signal difference that described division module generatesDescribed switch, the input of first switch described in every group in switch is used for inputting corresponding voltage signal,The 3rd output of switch and the output of described output unit are connected, for exporting corresponding voltage letterNumber;
The quantity N of the voltage signal that described division module generates meets with the quantity X of one group of corresponding switchRelational expression be: N≤2x, wherein X is more than or equal to 1 integer;
Described determining unit comprises 2X the control end input control signal for the described switch to correspondenceControl signal output;
Each described switch is for conducting under the control of corresponding control signal output, by the signal of inputExport by output.
In a kind of possible embodiment, in the above-mentioned compensating circuit that the embodiment of the present invention provides, described in openPass comprises: switching transistor;
The grid of described switching transistor is connected with corresponding control signal output, and it is defeated that drain electrode is used for exporting source electrodeThe signal entering.
The embodiment of the present invention provides a kind of display floater, comprises the above-mentioned compensation electricity that the embodiment of the present invention providesRoad.
In a kind of possible embodiment, in the above-mentioned display floater that the embodiment of the present invention provides, also comprise:Power supply generating chip and source drive chip; Wherein,
The division module of described compensating circuit is integrated in described power supply generating chip, the output of described compensating circuitModule integration is in source drive chip.
In a kind of possible embodiment, in the above-mentioned display floater that the embodiment of the present invention provides, also comprise:Gamma chip able to programme; The division module of described compensating circuit is integrated in gamma chip able to programme.
The beneficial effect of the embodiment of the present invention comprises:
The embodiment of the present invention provides a kind of compensation method, compensating circuit and display floater that drives signal, shouldCompensation method comprises: the first power supply signal and second source signal are carried out to voltage division processing, generate N voltageSignal; Wherein, N is more than or equal to 2 integer, and the magnitude of voltage of the first power supply signal is greater than second source letterNumber magnitude of voltage, the magnitude of voltage of N voltage signal is be more than or equal to the magnitude of voltage of second source signal and be less thanEqual the different magnitudes of voltage of the magnitude of voltage of the first power supply signal; According to the output distance that drives signal by as far as closelyN voltage signal exported from big to small according to magnitude of voltage. Like this according to output distance far away that drives signalClosely, apply the driving signal of different sizes, can improve the homogeneity that drives signal. Particularly, change is drivenMoving signal is mainly to realize by changing power supply voltage signal, therefore power supply signal can be carried out to dividing potential drop placeReason, forms the voltage signal that multiple magnitudes of voltage do not wait, and then according to the output distance that drives signal, selects phaseThe voltage signal output of answering, i.e. the voltage signal output of output distance selection magnitude of voltage maximum farthest, successivelyAnalogize, along with output distance reduces, the voltage signal of output reduces gradually, thereby can improve driving signalHomogeneity, improve the brightness homogeneity of display floater.
Brief description of the drawings
The compensation method flow chart of the driving signal that Fig. 1 provides for the embodiment of the present invention;
Fig. 2-Fig. 4 is respectively the structural representation of the compensating circuit that the embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with accompanying drawing, to the embodiment of the present invention provide drive signal compensation method, compensating circuit andThe detailed description of the invention of display floater is described in detail.
The embodiment of the present invention provides a kind of compensation method that drives signal, as shown in Figure 1, specifically can wrapDraw together:
S101, the first power supply signal and second source signal are carried out to voltage division processing, generate N voltage signal;Wherein, N is more than or equal to 2 integer, and the magnitude of voltage of the first power supply signal is greater than the electricity of second source signalPressure value, the magnitude of voltage of N voltage signal is to be more than or equal to the magnitude of voltage of second source signal and to be less than or equal toThe different magnitudes of voltage of the magnitude of voltage of one power supply signal;
S102, according to the output distance that drives signal by as far as closely by N voltage signal according to magnitude of voltage from greatlyTo little output.
In the compensation method of the above-mentioned driving signal that the embodiment of the present invention provides, can be according to driving the defeated of signalGo out the distance of distance, apply the driving signal of different sizes, can improve like this homogeneity that drives signal.Particularly, changing driving signal is mainly to realize by changing power supply voltage signal, therefore can be by power supplySignal carries out voltage division processing, forms the voltage signal that multiple magnitudes of voltage do not wait, and then according to driving the defeated of signalGo out distance, select corresponding voltage signal output, i.e. the voltage of output distance selection magnitude of voltage maximum farthestSignal output, along with output distance reduces, the voltage signal of output reduces gradually, thereby can improve drivingThe homogeneity of signal, the brightness homogeneity of raising display floater.
In the specific implementation, in the above-mentioned compensation method that the embodiment of the present invention provides, can also comprise: will give birth toN the voltage signal becoming carries out voltage stabilizing processing. N the voltage signal that can obtain dividing potential drop particularly,Carry out voltage stabilizing processing, to improve the driving force of voltage signal. Through the voltage signal of voltage stabilizing processing, voltageBe worth constantly, but its corresponding electric current fan-out capability is enhanced, and to the core of display floater output drive signalFor example source drive chip of sheet needs more intense electric current, therefore, and can be by the voltage signal that dividing potential drop is obtainedCarry out voltage stabilizing processing, strengthen its driving force.
In the specific implementation, in the above-mentioned compensation method that the embodiment of the present invention provides, step S101 can toolBody comprises: the first power supply signal and second source signal are carried out to electric resistance partial pressure processing, generate N voltage letterNumber. Particularly, can adopt the mode of electric resistance partial pressure power supply signal to be divided into the voltage of N different magnitudes of voltageSignal, thus according to the output distance that drives signal, select corresponding voltage signal output, export distanceThe voltage signal output of selection magnitude of voltage maximum farthest, the like, along with output distance reduces, outputVoltage signal reduce gradually, drive the homogeneity of signal thereby can improve, the brightness that improves display floaterHomogeneity.
In the specific implementation, in the above-mentioned compensation method that the embodiment of the present invention provides, step S102 can toolBody comprises: table look-up according to default, determine voltage signal corresponding with output distance in N voltage signal defeatedGo out; Wherein, as shown in the table, default table look-up and can comprise: N voltage signal according to magnitude of voltage from greatly toMinispread (AVDDn > ... > AVDD1), the corresponding default spacing of each voltage signal, each defaultThe spacing that the grid line Gate that spacing is predetermined number crosses over. Particularly, can be with the grid on display floaterLine is benchmark, and corresponding which voltage signal of distance default which row grid line is crossed over, forms default tabling look-up,In the time of output drive signal, can table look-up with reference to default like this, according to the outgoing position that drives signal, determineThe voltage signal corresponding with this outgoing position output, thus the homogeneity that drives signal can be improved.
Based on same inventive concept, the embodiment of the present invention provides a kind of upper that the embodiment of the present invention provides that adoptThe compensating circuit of stating the compensation method that drives signal, as shown in Figure 2, can comprise: division module 01 HeOutput module 02; Wherein,
The first input end of division module 01 is used for inputting the first power supply signal AVDD1, and the second input is usedIn input second source signal AVDD2; Then, division module 01 by the first power supply signal AVDD1 withSecond source signal AVDD2 carries out voltage division processing, generates N different voltage signal, and passes through dividing potential dropThe N of module 01 output is exported respectively; Wherein, N is more than or equal to 2 integer, the first power supply letterThe magnitude of voltage of number AVDD1 is greater than the magnitude of voltage of second source signal AVDD2, the value of N voltage signalFor being more than or equal to the magnitude of voltage of second source signal AVDD2 and being less than or equal to the first power supply signal AVDD1The different magnitudes of voltage of magnitude of voltage;
Output module 02 for the output distance according to driving signal by as far as closely by N voltage signal according toMagnitude of voltage is exported by output from big to small.
The above-mentioned compensating circuit that the embodiment of the present invention provides, can be according to output distance far away that drives signalClosely, apply the driving signal of different sizes, can improve like this homogeneity that drives signal. Particularly, changeBecoming driving signal is mainly to realize by changing power supply voltage signal, therefore can be by electricity by division moduleSource signal carries out voltage division processing, forms the voltage signal that multiple magnitudes of voltage do not wait, and then output module is according to drivingThe output distance of moving signal, selects corresponding voltage signal output, i.e. output distance selection magnitude of voltage farthestMaximum voltage signal output, along with output distance reduces, the voltage signal of output reduces gradually, thereby canTo improve the homogeneity that drives signal, improve the brightness homogeneity of display floater.
In the specific implementation, in the above-mentioned compensating circuit that the embodiment of the present invention provides, as shown in Figure 3, also canTo comprise: the output Voltage stabilizing module 03 one to one of N and division module 01; Voltage stabilizing module 03Carry out voltage stabilizing processing and output to output module 02 for N the voltage signal that division module 01 is generated.By increasing Voltage stabilizing module, N the voltage signal that division module is generated carries out voltage stabilizing processing like this, fromAnd can improve the driving force of voltage signal.
In the specific implementation, in the above-mentioned compensating circuit that the embodiment of the present invention provides, as shown in Figure 3, voltage stabilizingModule can specifically comprise: voltage stabilizing amplifier Y; The positive input of voltage stabilizing amplifier Y and corresponding dividing potential dropThe output of module 01 is connected, and negative input is connected with the output of self, and output is with corresponding defeatedThe input that goes out module 02 is connected, the first power end access positive power signal VCC, and second source termination entersGround power supply signal GND. Particularly, the voltage signal that needs voltage stabilizing processing is input to voltage stabilizing amplifierNormal phase input end, the output of voltage stabilizing amplifier is the voltage signal after exportable voltage stabilizing, the voltage after voltage stabilizingSignal voltage value is constant, and driving force strengthens, the structure of voltage stabilizing amplifier and operation principle and prior art phaseWith, be not described further at this.
In the specific implementation, in the above-mentioned compensating circuit that the embodiment of the present invention provides, as shown in Figure 3, dividing potential dropModule can specifically comprise: the resistance R 1-Rn of multiple series connection; One end of first resistance R 1 is for inputThe first power supply signal AVDD1, one end of last resistance R n is used for inputting second source signalAVDD2; An output is respectively drawn in junction between two adjacent resistance. By multiple electricity of series connectionResistance can realize electric resistance partial pressure, and then forms the voltage signal of multiple different magnitudes of voltage, adjacent two resistance itBetween junction can draw an output, by dividing potential drop obtain the corresponding output of voltage signal, certain firstIndividual resistance and last resistance are inputted respectively one end of the first power supply signal and second source signal, also canDraw respectively an output, for exporting respectively the first power supply signal and second source signal.
In the specific implementation, in the above-mentioned compensating circuit that the embodiment of the present invention provides, as shown in Figure 3, outputModule can specifically comprise: memory cell 021, determining unit 022 and output unit 023; Wherein, depositStorage unit 021 is for storing default tabling look-up; Determining unit 022 is pre-for what store according to memory cell 021If table look-up, determine voltage signal corresponding with output distance in N voltage signal and generate the corresponding letter of controllingNumber output to output unit 023; The control signal of output unit 023 for exporting according to determining unit 022Select corresponding voltage signal output; Wherein, default tabling look-up specifically comprises: N voltage signal is according to voltageValue is arranged from small to large, the corresponding default spacing of each voltage signal, and each default spacing is predetermined numberThe grid line spacing of crossing over.
Particularly, in the above-mentioned compensating circuit that the embodiment of the present invention provides, output module can be according to output distanceFrom selecting corresponding voltage signal as driving signal output. Wherein, can taking the grid line on display floater asBenchmark, corresponding which voltage signal of distance default which row grid line is crossed over, forms the default storage of tabling look-upIn memory cell; In the time of output drive signal, determining unit can be tabled look-up with reference to default, according to driving like thisThe outgoing position of signal, determines the voltage signal corresponding with this outgoing position and generates corresponding control signal defeatedGo out to output unit, output unit is exported corresponding voltage signal under the control of control signal, like thisRealize according to output distance and select the voltage signal of different sizes as driving signal output, thereby can improveDrive the homogeneity of signal.
The compensating circuit with a specific embodiment, the embodiment of the present invention being provided below describes, as Fig. 4Shown in, division module comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th electricity of series connectionResistance R4, the 5th resistance R 5, the 6th resistance R 6 and the 7th resistance R 7; One end of the first resistance R 1 is used forInput the first power supply signal AVDD1 and draw the first output V0, one end of the 7th resistance R 7 is for defeatedEnter second source signal AVDD2 and draw the 8th output V7; According to from the first resistance R 1 to the 7th electricityThe order of resistance R7, an output is respectively drawn in the junction of adjacent two resistance, is respectively the second outputV1, the 3rd output V2, the 4th output V3, the 5th output V4, the 6th output V5 andSeven output V6;
Output unit comprises: 24 switch T; Every three switch T are one group, three switch T in a groupBetween mutually series connection;
Determining unit comprises: 6 for the output to inductive switch T input control signal, is respectivelyOne control signal output D1, the second control signal output D2, the 3rd control signal output D3,The 4th control signal output D4, the 5th control signal output D5 and the 6th control signal output D6;
The corresponding one group of switch T of each output of division module; Each output is with corresponding one group of switchThe input of first switch T be connected, respectively organize output and the output unit of the 3rd switch T of switchOutput end vo ut be connected, for exporting corresponding voltage signal;
In one group of switch T corresponding to the first output V0 of division module, the control end of first switch TBe connected with the first control signal output D1, the control end of second switch T and the output of the second control signalEnd D2 is connected, and the control end of the 3rd switch T is connected with the 3rd control signal output D3;
In one group of switch T corresponding to the second output V1 of division module, the control end of first switch TBe connected with the first control signal output D1, the control end of second switch T and the output of the second control signalEnd D2 is connected, and the control end of the 3rd switch T is connected with the 4th control signal output D4;
In one group of switch T corresponding to the 3rd output V2 of division module, the control end of first switch TBe connected with the first control signal output D1, the control end of second switch T and the output of the 5th control signalEnd D5 is connected, and the control end of the 3rd switch T is connected with the 3rd control signal output D3;
In one group of switch T corresponding to the 4th output V3 of division module, the control end of first switch TBe connected with the first control signal output D1, the control end of second switch T and the output of the 5th control signalEnd D5 is connected, and the control end of the 3rd switch T is connected with the 4th control signal output D4;
In one group of switch T corresponding to the 5th output V4 of division module, the control end of first switch TBe connected with the 6th control signal output D6, the control end of second switch T and the output of the second control signalEnd D2 is connected, and the control end of the 3rd switch T is connected with the 3rd control signal output D3;
In one group of switch T corresponding to the 6th output V5 of division module, the control end of first switch TBe connected with the 6th control signal output D6, the control end of second switch T and the output of the second control signalEnd D2 is connected, and the control end of the 3rd switch T is connected with the 4th control signal output D4;
In one group of switch T corresponding to the 7th output V6 of division module, the control end of first switch TThe 6th control signal output D6 is connected, the control end of second switch T and the 5th control signal outputD5 is connected, and the control end of the 3rd switch T is connected with the 3rd control signal output D3;
In one group of switch T corresponding to the 8th output V7 of division module, the control end of first switch TBe connected with the 6th control signal output D6, the control end of second switch T and the output of the 5th control signalEnd D5 is connected, and the control end of the 3rd switch T is connected with the 4th control signal output D4;
Each switch T is for conducting under the control of the each control signal output in correspondence, by the signal of inputExport by output.
Particularly, in output module, select corresponding voltage signal output to realize by selection circuit,Wherein selecting circuit is to adopt certain syndeton to realize by multiple switches, (in figure, is as shown in Figure 4Simple and clear, omitted voltage stabilizing amplifier), control respectively and open by the signal of each control signal output outputConducting or the cut-off of closing, and the pass of the number a of control signal end and the quantity b of voltage signal is b≤2a，In the signal of above-mentioned six control signal outputs output, the 4th control signal output D4, the 5th controlsThe signal of signal output part D5, the 6th control signal output D6 output is exported with the 3rd control signal respectivelyThe signal of end D3, the second control signal output D2, the first control signal output D1 output is contrary,I.e. the 4th control signal output D4 output high level signal (setting high level signal is 1), the 3rd controlSignal output part D3 output low level signal processed (setting low level signal is 0). For example division module comprisesThe first～seven output V0～V7, has determined and need to selection export the 4th output V3 according to default tabling look-upSignal, therefore, the 6th control signal output D6, the 5th control signal output D5, the 4th controlSignal output part D4 is outputs level signals 0,1,1 (the i.e. letter of three control signal output outputs respectivelyNumber be binary signal 011, the decimal system is exactly numeral 3), the signal pair of other three control signal outputsAnswer negate, i.e. the first control signal output D1, the second control signal output D2, the 3rd control signalRespectively outputs level signals 1,0,0 of output D3, in one group of switch corresponding to such the 4th output,First switch T conducting under the control of the first control signal output D1, second switch T is the 5thConducting under the control of control signal output D5, the 3rd switch T is at the 4th control signal output D4Control under conducting, the signal of the 4th output V3 outputs to output through three switch T of conductingVout output (describing as example taking switch conducting under the control of high level signal 1 in above-described embodiment).
In the specific implementation, in the above-mentioned compensating circuit that the embodiment of the present invention provides, as shown in Figure 4, switchT can specifically comprise: switching transistor M; The grid of switching transistor M and corresponding control signal outputEnd is connected, and drain electrode is for exporting the signal of source electrode input. Particularly, the function of switch can be passed through switch crystalline substanceBody pipe is realized. It should be noted that the switching transistor of mentioning in the above embodiment of the present invention can be filmTransistor (TFT, ThinFilmTransistor) can be also metal oxide semiconductor field effect tube(MOS, MetalOxideSemiconductor), does not limit at this. In concrete enforcement, these crystalline substancesThe source electrode of body pipe and drain electrode can be exchanged, and do not do concrete differentiation. Describing when specific embodiment with film crystalPipe describes for example.
Based on same inventive concept, the embodiment of the present invention provides a kind of display floater, comprises the invention processThe above-mentioned compensating circuit that example provides. The principle and above-mentioned compensating circuit phase of dealing with problems due to this display floaterSeemingly, therefore the enforcement of this display floater can be referring to the enforcement of above-mentioned compensating circuit, repeats part and repeat no more.
In the specific implementation, in the above-mentioned display floater that the embodiment of the present invention provides, can also comprise: power supplyGenerating chip and source drive chip; Wherein, the division module of compensating circuit is integrated in power supply generating chip, mendsThe output module of repaying circuit is integrated in source drive chip. Particularly, can by the division module of compensating circuit withOutput module is integrated in respectively power supply generating chip and source drive chip, and compensating circuit is arranged to display floaterIn original chip, can improve the integrated level of display floater, reduce production costs.
In the specific implementation, in the above-mentioned display floater that the embodiment of the present invention provides, can also comprise: can compileJourney gamma chip; The division module of compensating circuit can be integrated in gamma chip able to programme. Compensating circuit is establishedBe placed in the original chip of display floater, can improve the integrated level of display floater, reduce production costs, noNeed to increase making and the binding of extra chips.
The embodiment of the present invention provides a kind of compensation method, compensating circuit and display floater that drives signal, shouldCompensation method comprises: the first power supply signal and second source signal are carried out to voltage division processing, generate N voltageSignal; Wherein, N is more than or equal to 2 integer, and the magnitude of voltage of the first power supply signal is greater than second source letterNumber magnitude of voltage, the magnitude of voltage of N voltage signal is be more than or equal to the magnitude of voltage of second source signal and be less thanEqual the different magnitudes of voltage of the magnitude of voltage of the first power supply signal; According to the output distance that drives signal by as far as closelyN voltage signal exported from big to small according to magnitude of voltage. Like this according to output distance far away that drives signalClosely, apply the driving signal of different sizes, can improve the homogeneity that drives signal. Particularly, change is drivenMoving signal is mainly to realize by changing power supply voltage signal, therefore power supply signal can be carried out to dividing potential drop placeReason, forms the voltage signal that multiple magnitudes of voltage do not wait, and then according to the output distance that drives signal, selects phaseThe voltage signal output of answering, i.e. the voltage signal output of output distance selection magnitude of voltage maximum farthest, successivelyAnalogize, along with output distance reduces, the voltage signal of output reduces gradually, thereby can improve driving signalHomogeneity, improve the brightness homogeneity of display floater.
Obviously, those skilled in the art can carry out various changes and modification and not depart from this present inventionBright spirit and scope. Like this, if of the present invention these amendment and modification belong to the claims in the present invention andWithin the scope of its equivalent technologies, the present invention be also intended to comprise these change and modification interior.
Claims (14)
1. drive a compensation method for signal, it is characterized in that, comprising:
The first power supply signal and second source signal are carried out to voltage division processing, generate N voltage signal; Wherein,N is more than or equal to 2 integer, and the magnitude of voltage of described the first power supply signal is greater than described second source signalMagnitude of voltage, the magnitude of voltage of N described voltage signal be more than or equal to described second source signal magnitude of voltage andBe less than or equal to the different magnitudes of voltage of the magnitude of voltage of described the first power supply signal;
According to the output distance that drives signal by as far as closely by N described voltage signal according to magnitude of voltage from greatlyTo little output.
2. the method for claim 1, is characterized in that, described by the first power supply signal and secondPower supply signal carries out voltage division processing, generates N voltage signal, comprising:
Described the first power supply signal and described second source signal are carried out to electric resistance partial pressure processing, generate N electricityPress signal.
3. the method for claim 1, is characterized in that, the described output distance according to driving signalFrom by as far as close to N described voltage signal is exported from big to small according to magnitude of voltage, comprising:
Table look-up according to default, determine in N described voltage signal and drive the output of signal apart from corresponding electricityPress signal output;
Wherein, described default tabling look-up comprises: N described voltage signal arranged from small to large according to magnitude of voltage,The corresponding default spacing of each described voltage signal, the grid line institute that each described default spacing is predetermined numberThe spacing of crossing over.
4. the method as described in claim 1-3 any one, is characterized in that described compensation methodAlso comprise:
The N generating a described voltage signal is carried out to voltage stabilizing processing.
5. the compensation electricity of the compensation method of the employing driving signal as described in claim 1-4 any oneRoad, is characterized in that, comprising: division module and output module; Wherein,
The first input end of described division module is used for inputting the first power supply signal, and the second input is for inputSecond source signal, described division module is for entering described the first power supply signal and described second source signalRow voltage division processing, generates the voltage signal that N is different and outputs to respectively N of described division module defeatedGo out end; Described output is exported N described voltage signal respectively; Wherein, N be more than or equal to 2 wholeNumber, the magnitude of voltage of described the first power supply signal is greater than the magnitude of voltage of described second source signal, N described electricityPressing the value of signal is to be more than or equal to the magnitude of voltage of described second source signal and to be less than or equal to described the first power supplyThe different magnitudes of voltage of the magnitude of voltage of signal;
Described output module for the output distance according to driving signal by as far as closely N described voltage being believedNumber export by output from big to small according to magnitude of voltage.
6. compensating circuit as claimed in claim 5, is characterized in that, also comprises: N and described pointThe output of die block Voltage stabilizing module one to one;
Described Voltage stabilizing module carry out voltage stabilizing place for N the described voltage signal that described division module is generatedManage and output to described output module.
7. compensating circuit as claimed in claim 6, is characterized in that, described division module comprises: manyThe resistance of individual series connection;
One end of first resistance is used for inputting described the first power supply signal, and one end of last resistance is used forInput described second source signal; An output is respectively drawn in junction between two adjacent resistance.
8. compensating circuit as claimed in claim 7, is characterized in that, described Voltage stabilizing module comprises: steadyPress amplifier;
The positive input of described voltage stabilizing amplifier is connected with the output of corresponding described division module, negative senseInput is connected with the output of self, and output is connected with the input of corresponding described output module, theOne power end access positive power signal, second source termination enters ground power supply signal.
9. compensating circuit as claimed in claim 8, is characterized in that, described output module comprises: reallyOrder unit, memory cell and output unit; Wherein,
Described memory cell is used for storing default tabling look-up;
Described determining unit, for tabling look-up according to the default of described cell stores, is determined N described voltageIn signal, output to driving the output of signal apart from corresponding voltage signal and generate corresponding control signalDescribed output unit;
Described output unit is for selecting corresponding voltage letter according to the control signal of described determining unit outputNumber output;
Wherein, described default tabling look-up specifically comprises: N described voltage signal arranged from small to large according to magnitude of voltageRow, the corresponding default spacing of each described voltage signal, the grid that each described default spacing is predetermined numberThe spacing that line is crossed over.
10. compensating circuit as claimed in claim 9, is characterized in that, described output unit comprises multipleSwitch, N the voltage signal that described division module the generates described switch of corresponding one group of series connection respectively, every groupThe input of first switch in described switch is for inputting corresponding voltage signal, the 3rd switch defeatedGo out end and be connected with the output of described output unit, for exporting corresponding voltage signal;
The quantity N of the voltage signal that described division module generates meets with the quantity X of one group of corresponding switchRelational expression be: N≤2x, wherein X is more than or equal to 1 integer;
Described determining unit comprises 2X the control end input control signal for the described switch to correspondenceControl signal output;
Each described switch is for conducting under the control of corresponding control signal output, by the signal of inputExport by output.
11. compensating circuits as claimed in claim 10, is characterized in that, described switch comprises: switchTransistor;
The grid of described switching transistor is connected with corresponding control signal output, and it is defeated that drain electrode is used for exporting source electrodeThe signal entering.
12. 1 kinds of display floaters, is characterized in that, comprise the compensation as described in claim 5-11 any oneCircuit.
13. display floaters as claimed in claim 12, is characterized in that, also comprise: power supply generates coreSheet and source drive chip; Wherein,
The division module of described compensating circuit is integrated in described power supply generating chip, the output of described compensating circuitModule integration is in source drive chip.
14. display floaters as claimed in claim 12, is characterized in that, also comprise: gamma able to programmeChip; The division module of described compensating circuit is integrated in gamma chip able to programme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090303.6A CN105609038B (en) | 2016-02-17 | 2016-02-17 | A kind of compensation method of drive signal, compensation circuit and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090303.6A CN105609038B (en) | 2016-02-17 | 2016-02-17 | A kind of compensation method of drive signal, compensation circuit and display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105609038A true CN105609038A (en) | 2016-05-25 |
| CN105609038B CN105609038B (en) | 2018-05-11 |
Family
ID=55988930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610090303.6A Active CN105609038B (en) | 2016-02-17 | 2016-02-17 | A kind of compensation method of drive signal, compensation circuit and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105609038B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330194A (en) * | 2016-08-15 | 2017-01-11 | 京东方科技集团股份有限公司 | Digital to analog conversion circuit, display panel and display device |
| WO2017148001A1 (en) * | 2016-03-02 | 2017-09-08 | 京东方科技集团股份有限公司 | Gate drive method and circuit, and display device |
| WO2019024157A1 (en) * | 2017-08-03 | 2019-02-07 | 深圳市华星光电半导体显示技术有限公司 | Method for driving liquid crystal display panel, and voltage adjustment circuit |
| CN111883081A (en) * | 2020-07-28 | 2020-11-03 | 重庆惠科金渝光电科技有限公司 | Display driving circuit and display panel |
| CN115236906A (en) * | 2022-06-30 | 2022-10-25 | 苏州华星光电技术有限公司 | Display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005719A (en) * | 2001-06-21 | 2003-01-08 | Matsushita Electric Ind Co Ltd | Signal line driving device, electric power supply adjusting device, and image display device |
| KR20060044120A (en) * | 2004-11-11 | 2006-05-16 | 엘지.필립스 엘시디 주식회사 | Circuit and method for compensating pixel capacitance of liquid crystal display device |
| CN103810969A (en) * | 2012-11-09 | 2014-05-21 | 乐金显示有限公司 | Organic light-emitting display device |
| CN104361878A (en) * | 2014-12-10 | 2015-02-18 | 京东方科技集团股份有限公司 | Display panel and driving method thereof as well as display device |
| CN104867455A (en) * | 2015-06-16 | 2015-08-26 | 深圳市华星光电技术有限公司 | System and method for compensating AMOLED voltage drop |
-
2016
- 2016-02-17 CN CN201610090303.6A patent/CN105609038B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005719A (en) * | 2001-06-21 | 2003-01-08 | Matsushita Electric Ind Co Ltd | Signal line driving device, electric power supply adjusting device, and image display device |
| KR20060044120A (en) * | 2004-11-11 | 2006-05-16 | 엘지.필립스 엘시디 주식회사 | Circuit and method for compensating pixel capacitance of liquid crystal display device |
| CN103810969A (en) * | 2012-11-09 | 2014-05-21 | 乐金显示有限公司 | Organic light-emitting display device |
| CN104361878A (en) * | 2014-12-10 | 2015-02-18 | 京东方科技集团股份有限公司 | Display panel and driving method thereof as well as display device |
| CN104867455A (en) * | 2015-06-16 | 2015-08-26 | 深圳市华星光电技术有限公司 | System and method for compensating AMOLED voltage drop |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148001A1 (en) * | 2016-03-02 | 2017-09-08 | 京东方科技集团股份有限公司 | Gate drive method and circuit, and display device |
| CN106330194A (en) * | 2016-08-15 | 2017-01-11 | 京东方科技集团股份有限公司 | Digital to analog conversion circuit, display panel and display device |
| CN106330194B (en) * | 2016-08-15 | 2017-11-10 | 京东方科技集团股份有限公司 | A kind of D/A converting circuit, display panel and display device |
| US10277245B2 (en) | 2016-08-15 | 2019-04-30 | Boe Technology Group Co., Ltd. | Digital to analog converter circuit, display panel and display device |
| WO2019024157A1 (en) * | 2017-08-03 | 2019-02-07 | 深圳市华星光电半导体显示技术有限公司 | Method for driving liquid crystal display panel, and voltage adjustment circuit |
| CN111883081A (en) * | 2020-07-28 | 2020-11-03 | 重庆惠科金渝光电科技有限公司 | Display driving circuit and display panel |
| US11308913B2 (en) | 2020-07-28 | 2022-04-19 | Chongqing Hkc Optoelectronics Technology Co., Ltd. | Display driving circuit and display panel |
| CN115236906A (en) * | 2022-06-30 | 2022-10-25 | 苏州华星光电技术有限公司 | Display device |
| CN115236906B (en) * | 2022-06-30 | 2023-08-22 | 苏州华星光电技术有限公司 | display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105609038B (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105609038A (en) | Driving signal compensation method, driving signal compensation circuit and display panel | |
| CN105070243B (en) | Gate turn-on voltage compensation circuit, display panel, driving method and display device | |
| CN105139816B (en) | Gate driving circuit | |
| CN102270509B (en) | Shift register circuit | |
| CN1384546A (en) | Semiconductor device | |
| CN105869581B (en) | Liquid crystal display drive circuit and liquid crystal display device | |
| CN104809984B (en) | Source electrode drive circuit, source electrode driving device, display panel and display device | |
| CN102163399A (en) | Output circuit, data driver and display device | |
| CN104883181A (en) | NOR gate circuit, shift register, array substrate, and display apparatus | |
| CN104867469B (en) | The display device of black plug can be carried out | |
| CN104021755A (en) | Pixel circuit, driving method and display device | |
| CN105513527A (en) | Common voltage compensation circuit, compensation method and display panel | |
| CN112509512B (en) | GIP circuit and driving method | |
| CN105070262A (en) | Source drive circuit and liquid crystal display panel | |
| CN104505050A (en) | Scanning driving circuit for oxide semiconductor thin film transistor | |
| CN105654888A (en) | Common electrode voltage compensating circuit and display device | |
| CN108288450A (en) | Shift register cell, driving method, gate driving circuit and display device | |
| CN103198788A (en) | Pixel circuit, organic electroluminescence display panel and display device | |
| CN111654948B (en) | LED driving circuit, driving method and display device | |
| US11568781B2 (en) | Display panel and display device | |
| CN103871376A (en) | Charge sharing device and charge sharing method | |
| CN102955309B (en) | A kind of array base palte, display panel, display device and driving method thereof | |
| CN101051835B (en) | voltage position quasi displacement circuit | |
| CN102684670B (en) | The signal high speed output circuit of zero reverse irrigated current | |
| CN103208988A (en) | Level shifting circuit and method for conducting positive voltage level shifting and negative voltage level shifting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |