CN104766583A - Polarity-reversal compensation method, device and liquid crystal display - Google Patents
Polarity-reversal compensation method, device and liquid crystal display Download PDFInfo
- Publication number
- CN104766583A CN104766583A CN201510206071.1A CN201510206071A CN104766583A CN 104766583 A CN104766583 A CN 104766583A CN 201510206071 A CN201510206071 A CN 201510206071A CN 104766583 A CN104766583 A CN 104766583A
- Authority
- CN
- China
- Prior art keywords
- signal
- cycle
- pixel column
- output enable
- reversal
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000007423 decrease Effects 0.000 claims description 54
- 230000000630 rising effect Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 102100029361 Aromatase Human genes 0.000 description 2
- 101000919395 Homo sapiens Aromatase Proteins 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a polarity-reversal compensation method, device and a liquid crystal display, relates to the technical field of display, and aims at solving the problem that the display effect is poor caused by obvious bright lines and dark lines appearing on a screen of the liquid crystal display. The polarity-reversal compensation method comprises the steps that a data signal corresponding to a reversal pixel row is obtained, and the ascent stage and the descent stage of the data signal is obtained according to the data signal; a vertical pulse clock signal and an output enable signal are set according to the ascent stage and the descent stage of the data signal to enable a scanning signal corresponding the reversal pixel row to be started after the ascent stage or the descent stage of the data signal is finished. The polarity-reversal compensation method is applied to a polarity-reversal compensation device, and the liquid crystal display comprises the polarity-reversal compensation device mentioned in the technical scheme. The polarity-reversal compensation method is used for driving the liquid crystal display to conduct polarity-reversal.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of compensation method of reversal of poles, device and liquid crystal display.
Background technology
Along with the development of display technique, liquid crystal display becomes one of display device of current main flow, in a liquid crystal display, cause permanent destruction in order to avoid liquid crystal produces polarization, need the polarity of the voltage signal be applied between liquid crystal capacitance and memory capacitance just once to reverse at regular intervals.Wherein, the capable reversion of N is a kind of common mode in reversal of poles, and the polarity of adjacent N capable reversion pixel column is reversed, and becomes negative pole from original positive pole, or, become positive pole from original negative pole.When carrying out the capable reversion of N, the data-signal that N capable reversion pixel column is corresponding reverses, and namely rises to high level by low level, or drops to low level by high level, and is that N capable reversion pixel column charges.
But, owing to rising to high level for the data-signal of N capable reversion pixel column charging by low level, or drop to low level by high level, also and unstable, therefore, the charge rate of N capable reversion pixel column is lower than the charge rate of the pixel column that do not reverse, make the brightness in the region that reverse pixel column capable of N is corresponding on the screen of liquid crystal display, be different from the brightness in the region corresponding with the pixel column that do not reverse, cause obvious bright line or concealed wire appear in the screen of liquid crystal display, affect display effect.
Summary of the invention
The object of the present invention is to provide a kind of compensation method of reversal of poles, device and liquid crystal display, on the screen avoiding liquid crystal display, occur bright line and concealed wire, improve display effect.
To achieve these goals, the invention provides following technical scheme:
First aspect, the invention provides a kind of compensation method of reversal of poles, comprising:
Obtain the data-signal corresponding with reversion pixel column, according to described data-signal, obtain ascent stage or the decline stage of described data-signal;
According to ascent stage or the decline stage of described data-signal, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate.
Second aspect, the invention provides a kind of compensation system of reversal of poles, comprising:
First acquiring unit, for obtaining the data-signal corresponding with the pixel column that reverses, according to described data-signal, obtains ascent stage or the decline stage of described data-signal;
Compensating unit, for according to the ascent stage of described data-signal or decline stage, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate.
The third aspect, present invention also offers a kind of liquid crystal display, and this liquid crystal display comprises the compensation system of the reversal of poles in technique scheme.
In the compensation method of reversal of poles provided by the invention, device and liquid crystal display, obtain the data-signal corresponding with reversion pixel column, obtain ascent stage or the decline stage of this data-signal, whether vertical pulse clock signal and output enable signal are used for gated sweep signal and open, according to ascent stage or the decline stage of this data-signal, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened after data-signal ascent stage or decline stage terminate.With in the ascent stage of data-signal or decline stage, compared with the prior art that the sweep signal corresponding with reversion pixel column is just opened, after the ascent stage of the data-signal corresponding with reversion pixel column or decline stage terminate, data-signal tends towards stability, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened when data-signal tends towards stability, thus make reversion pixel column substantially identical with the charge rate of non-inverted pixel column, on the screen of guarantee liquid crystal display, the brightness in the region that the brightness in the region that N capable reversion pixel column is corresponding is corresponding with the pixel column that do not reverse is consistent, and then avoid bright line and concealed wire appear in the screen of liquid crystal display, improve display effect.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the compensation method of reversal of poles in the embodiment of the present invention one;
Fig. 2 is the sequential chart of data-signal in prior art, vertical pulse clock signal, output enable signal and sweep signal;
Fig. 3 is the sequential chart of data-signal in the embodiment of the present invention one, vertical pulse clock signal, output enable signal and sweep signal;
Fig. 4 is the process flow diagram of the compensation method of reversal of poles in the embodiment of the present invention two;
Fig. 5 is the process flow diagram of the compensation method of reversal of poles in the embodiment of the present invention three;
Fig. 6 is the structural representation of the compensation system of the reversal of poles corresponding with Fig. 1;
Fig. 7 is the structural representation of the compensation system of the reversal of poles corresponding with Fig. 4;
Fig. 8 is the structural representation of the compensation system of the reversal of poles corresponding with Fig. 5.
Embodiment
In order to further illustrate the compensation method of the reversal of poles that the embodiment of the present invention provides, device and liquid crystal display, be described in detail below in conjunction with Figure of description.
Embodiment one
Refer to Fig. 1, the compensation method of the reversal of poles that the embodiment of the present invention provides, comprising:
Step 101, obtains the data-signal corresponding with reversion pixel column, according to described data-signal, obtains ascent stage or the decline stage of described data-signal; Wherein, data-signal is used for charging for pixel, and when pixel needs the capable reversion of generation N, data-signal is also corresponding to change, thus for pixel be filled with reverse before opposite polarity electric current.Such as: reversion pixel column needs to be reversed to negative polarity by positive polarity, and data-signal becomes low level from high level; Or reversion pixel column needs to be reversed to positive polarity by negative polarity, and data-signal becomes high level from low level.As shown in Figure 2 and Figure 3, DATA is data-signal, and in the B-C stage, reversion pixel column needs to carry out reversal of poles, and the B-C stage is the ascent stage of data-signal.
Step 102, according to ascent stage or the decline stage of described data-signal, arranges vertical pulse clock signal and output enable signal, and the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate; Wherein, whether vertical pulse clock signal and output signal open for gated sweep signal.
Need to be reversed to positive polarity by negative polarity with the pixel column that reverses below, it is that example is described that data-signal becomes high level from low level, Fig. 2 is data-signal of the prior art (DATA), vertical pulse clock signal (CPV, Clock Pulse Vertical), output enable signal (OE, Output Enable) and sweep signal (GATE) between timing diagram, CPV1 is the vertical pulse clock signal corresponding with reversion pixel column, OE1 is the output enable signal corresponding with reversion pixel column, GATE1 is the sweep signal corresponding with reversion pixel column, CPV1 ' is the vertical pulse clock signal corresponding with non-inverted pixel column, OE1 ' is the output enable signal corresponding with non-inverted pixel column, GATE1 ' is the sweep signal corresponding with non-inverted pixel column.Fig. 3 is the data-signal (DATA) in the embodiment of the present invention, vertical pulse clock signal (CPV, Clock Pulse Vertical), output enable signal (OE, Output Enable) and sweep signal (GATE) between timing diagram, CPV2 is the vertical pulse clock signal corresponding with reversion pixel column, OE2 is the output enable signal corresponding with reversion pixel column, GATE2 is the sweep signal corresponding with reversion pixel column, CPV2 ' is the vertical pulse clock signal corresponding with non-inverted pixel column, OE2 ' is the output enable signal corresponding with non-inverted pixel column, GATE2 ' is the sweep signal corresponding with non-inverted pixel column.Can obtain from Fig. 2, the B-C stage is the ascent stage of data-signal, output enable signal of the prior art and vertical pulse clock signal make sweep signal just open in the B-C stage, and due in the B-C stage, data-signal is ascent stage, after ascent stage terminates, data-signal just can reach steady state (SS), in prior art, when data-signal does not also reach steady state (SS), sweep signal is opened, the data-signal also not reaching steady state (SS) charges to the pixel in reversion pixel column, but not reversion pixel column is not owing to reversing, data-signal is in steady state (SS) always, therefore, the charge rate of reversion pixel column will lower than non-inverted pixel column, cause bright line and concealed wire appear in the screen of liquid crystal display.Can obtain from Fig. 3, the B-C stage is the ascent stage of data-signal, output enable signal in the embodiment of the present invention and vertical pulse clock signal make sweep signal not open in the B-C stage, until after ascent stage terminates, just open sweep signal, the data-signal being in steady state (SS) is that the pixel of reversing in pixel column is charged, therefore, the charge rate of reversion pixel column is substantially identical with the charge rate of non-inverted pixel column, therefore, there is bright line and concealed wire in the screen avoiding liquid crystal display.
In the compensation method of the reversal of poles that the embodiment of the present invention provides, obtain the data-signal corresponding with reversion pixel column, obtain ascent stage or the decline stage of this data-signal, whether vertical pulse clock signal and output enable signal are used for gated sweep signal and open, according to ascent stage or the decline stage of this data-signal, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened after data-signal ascent stage or decline stage terminate.With in the ascent stage of data-signal or decline stage, compared with the prior art that the sweep signal corresponding with reversion pixel column is just opened, after the ascent stage of the data-signal corresponding with reversion pixel column or decline stage terminate, data-signal tends towards stability, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened when data-signal tends towards stability, thus make reversion pixel column substantially identical with the charge rate of non-inverted pixel column, on the screen of guarantee liquid crystal display, the brightness in the region that the brightness in the region that N capable reversion pixel column is corresponding is corresponding with the pixel column that do not reverse is consistent, and then avoid bright line and concealed wire appear in the screen of liquid crystal display, improve display effect.
It should be noted that, output enable signal comprises control level and non-controlling level, and under control level, sweep signal can be opened; Under non-controlling level, sweep signal can not be opened, and ascent stage or the decline stage of the non-controlling level in output enable signal and data-signal are corresponding, thus sweep signal is not opened at the ascent stage of data-signal or decline stage.Concrete, the control level in output enable signal is low level, and the non-controlling level in output enable signal is high level, and the rising edge of vertical pulse clock signal is corresponding with the rising edge of output enable signal; That is, sweep signal opens demand fulfillment two conditions, and one is that sweep signal needs to open to the random time between next rising edge at a rising edge of vertical pulse clock signal; Two is that sweep signal needs to open when output enable signal is low level.When above-mentioned two conditions meet simultaneously, sweep signal is opened, thus makes data-signal be that pixel is charged.
In order to the homogeneity of the brightness in ensure further LCD Panel is reversed pixel column and region corresponding to non-inverted pixel column, when arranging output enable signal, make the duration of control level in the returing cycle of output enable signal, identical with the duration of control level in the non-inverted cycle of output enable signal, thus making the duration of charging of non-inverted pixel column identical with the duration of charging of non-inverted pixel column, the brightness in the region that the pixel column that makes further LCD Panel is reversed is corresponding with non-inverted pixel column is consistent.It should be noted that, returing cycle is corresponding with reversion pixel column, the non-inverted cycle is corresponding with non-inverted pixel column, such as: as shown in Figure 3, CPV2 is the vertical pulse clock signal corresponding with reversion pixel column, duration shared by CPV2 is returing cycle, and CPV2 ' is the vertical pulse clock signal corresponding with non-inverted pixel column, and the duration shared by CPV2 ' is the non-inverted cycle.
Embodiment two
Because sweep signal is opened after the ascent stage of data-signal or decline stage terminate, the returing cycle of vertical pulse clock signal is identical with the returing cycle of output enable signal, the non-inverted cycle of vertical pulse clock signal is identical with the non-inverted cycle of output enable signal, therefore, the returing cycle of vertical pulse clock signal and non-inverted cycle all need to carry out calculating and adjusting, as shown in Figure 4, the compensation method of the reversal of poles that above-described embodiment provides, also comprises:
Step 103, obtains in the duration T1 of a frame, a frame time T2 that the described number N of reversion pixel column, the number H1 of the pixel column of viewing area, the number H2 of the pixel column of clear area and the ascent stage of described data-signal that once reverse or decline stage continue.
Step 104, according to described T1, N, H1, H2 and T2, calculates and obtains returing cycle and the non-inverted cycle of vertical pulse clock signal, and the returing cycle of output enable signal and non-inverted cycle; Wherein, sweep signal is opened after the ascent stage of data-signal or decline stage terminate, and needs the duration T1 of a frame to be again divided into multiple returing cycle and non-inverted cycle, distributes to reversion pixel column and non-inverted pixel column.Concrete, register (RCT can be added in sequential control circuit in a liquid crystal display, Reverse Change Time), for the reversion pixel column in viewing area (Active district), write the time T2 that the ascent stage of data-signal or decline stage continue in a register, register adds the time T2 that the ascent stage of data-signal or decline stage continue before sweep signal is opened, and clear area (Blanking district) does not need to add the time T2 that the ascent stage of this data-signal or decline stage continue.
It should be noted that, adopt the compensation method of the reversal of poles in the embodiment of the present invention, the clock of the scan signal drive circuit in liquid crystal display can change, corresponding phaselocked loop (PLL will be changed accordingly, Phase Locked Loop) circuit or delay phase-locked loop (DLL, Delay locked Loop), make the clock increase at double of scan signal drive circuit.
It is worth mentioning that, the output enable signal similar in top rake circuit sequence signal and the present invention, the compensation method of the reversal of poles in the embodiment of the present invention also may be used in top rake circuit.
Embodiment three
Returing cycle and the concrete grammar in non-inverted cycle of vertical pulse clock signal will be calculated in embodiments of the present invention in the step 104 illustrated in embodiment two, refer to Fig. 5, step 104 in embodiment two can also be refined as step 1041-step 1043, comprising:
Step 1041, utilizes formula n=[H1/N], calculates reversion frequency n; Wherein, H1 is the number of the pixel column of viewing area, and reversion pixel column is present in viewing area, and N is the number of the reversion pixel column once reversed in a frame, can be calculated in a frame number of times occurring to reverse by the formula of this step.
Step 1042, utilizes formula T
c=(T1-n*T2)/(H1+H2), calculates the non-inverted cycle T of described vertical pulse clock signal
c; T1 is the duration of a frame, T2 is the time continued the ascent stage of data-signal or decline stage, T1-n*T2 calculates removing in a frame and waits for the ascent stage of data-signal or time remaining after the decline stage, finally utilizes the formulae discovery of this step to obtain the non-inverted cycle T of vertical pulse clock signal
c.
Step 1043, utilizes formula T
r=T
c+ T2, calculates the returing cycle T of described vertical pulse clock signal
r; Wherein, the non-inverted cycle T of vertical pulse clock signal
cadd and can obtain the returing cycle T of vertical pulse clock signal by the time T2 that the ascent stage of data-signal or decline stage continue
r.
Refer to Fig. 6, corresponding with embodiment one, the embodiment of the present invention additionally provides a kind of compensation system 200 of reversal of poles, comprises the first acquiring unit 201 and compensating unit 202;
Wherein, the first acquiring unit 201, for obtaining the data-signal corresponding with the pixel column that reverses, according to described data-signal, obtains ascent stage or the decline stage of described data-signal;
Compensating unit 202, for according to the ascent stage of described data-signal or decline stage, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate.
In the compensation system of reversal of poles provided by the invention, obtain the data-signal corresponding with reversion pixel column, obtain ascent stage or the decline stage of this data-signal, whether vertical pulse clock signal and output enable signal are used for gated sweep signal and open, according to ascent stage or the decline stage of this data-signal, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened after data-signal ascent stage or decline stage terminate.With in the ascent stage of data-signal or decline stage, compared with the prior art that the sweep signal corresponding with reversion pixel column is just opened, after the ascent stage of the data-signal corresponding with reversion pixel column or decline stage terminate, data-signal tends towards stability, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with the pixel column that reverses is opened when data-signal tends towards stability, thus make reversion pixel column substantially identical with the charge rate of non-inverted pixel column, on the screen of guarantee liquid crystal display, the brightness in the region that the brightness in the region that N capable reversion pixel column is corresponding is corresponding with the pixel column that do not reverse is consistent, and then avoid bright line and concealed wire appear in the screen of liquid crystal display, improve display effect.
It should be noted that, in the above-described embodiments, output enable signal comprises control level and non-controlling level, and ascent stage or the decline stage of the non-controlling level in output enable signal and data-signal are corresponding.Concrete, the control level in output enable signal is low level, and the control level in output enable signal is high level; The rising edge of vertical pulse clock signal is corresponding with the rising edge of output enable signal.The duration of control level in the returing cycle of output enable signal, identical with the duration of control level in the non-inverted cycle of output enable signal, returing cycle is corresponding with reversion pixel column, and the non-inverted cycle is corresponding with non-inverted pixel column.
In addition, refer to Fig. 7, corresponding with embodiment two, in order to redistribute returing cycle in a frame and non-inverted cycle, the compensation system 200 of above-mentioned reversal of poles also comprises second acquisition unit 203 and computing unit 204;
Wherein, second acquisition unit 203, the time T2 that the duration T1 obtaining a frame, the number N of reversion pixel column of once reversing in a frame, the number H1 of the pixel column of viewing area, the number H2 of the pixel column of clear area and the ascent stage of described data-signal or decline stage continue;
Computing unit 204, for according to described T1, N, H1, H2 and T2, calculate and obtain returing cycle and the non-inverted cycle of vertical pulse clock signal, and the returing cycle of output enable signal and non-inverted cycle, described returing cycle is corresponding with described reversion pixel column, and the described non-inverted cycle is corresponding with non-inverted pixel column; The returing cycle of described vertical pulse clock signal is identical with the returing cycle of described output enable signal, and the non-inverted cycle of described vertical pulse clock signal is identical with the non-inverted cycle of described output enable signal.
Concrete, refer to Fig. 8, corresponding with embodiment three, in order to calculate returing cycle and the non-inverted cycle of vertical pulse clock signal further, above-mentioned computing unit 204 comprises the first computing module 2041, second computing module 2042 and the 3rd computing module 2043;
Wherein, the first computing module 2041, for utilizing formula n=[H1/N], calculates reversion frequency n;
Second computing module 2042, for utilizing formula T
c=(T1-n*T2)/(H1+H2), calculates the non-inverted cycle T of described vertical pulse clock signal
c;
3rd computing module 2043, for utilizing formula T
r=T
c+ T2, calculates the returing cycle T of described vertical pulse clock signal
r.
The embodiment of the present invention additionally provides a kind of liquid crystal display, this liquid crystal display comprises the compensation system 200 of the reversal of poles in above-described embodiment, the Dominant Facies that compensation system 200 and the compensation system 200 of the reversal of poles in above-described embodiment of the reversal of poles in described liquid crystal display have is same, repeats no more herein.Concrete, this liquid crystal display can be: any product or parts with Presentation Function such as display panels, Electronic Paper, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
In addition, above-mentioned liquid crystal display also comprises register, this register is used for the time that the ascent stage of memory data signal or decline stage continue, concrete, register can be flash memory (flash storage) or DDR (Double Data Rate, Double Data Rate synchronous DRAM) etc. memory device, the time write register that the ascent stage of data-signal or decline stage are continued, when N capable reversion pixel row reverses, after the ascent stage of data-signal or decline stage terminate, sweep signal just can be opened, substantially identical with the charge rate of non-inverted pixel column to ensure reversion pixel column, on the screen of liquid crystal display, the brightness in the region that the brightness in the region that N capable reversion pixel column is corresponding is corresponding with the pixel column that do not reverse is consistent, and then avoid bright line and concealed wire appear in the screen of liquid crystal display, improve display effect.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (14)
1. a compensation method for reversal of poles, is characterized in that, comprising:
Obtain the data-signal corresponding with reversion pixel column, according to described data-signal, obtain ascent stage or the decline stage of described data-signal;
According to ascent stage or the decline stage of described data-signal, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate.
2. the compensation method of reversal of poles according to claim 1, it is characterized in that, described output enable signal comprises control level and non-controlling level, and ascent stage or the decline stage of the non-controlling level in described output enable signal and described data-signal are corresponding.
3. the compensation method of reversal of poles according to claim 2, is characterized in that, the control level in described output enable signal is low level, and the non-controlling level in described output enable signal is high level; The rising edge of described vertical pulse clock signal is corresponding with the rising edge of described output enable signal.
4. the compensation method of the reversal of poles according to Claims 2 or 3, it is characterized in that, the duration of control level described in the returing cycle of described output enable signal, identical with the duration of control level described in the non-inverted cycle at described output enable signal, described returing cycle is corresponding with described reversion pixel column, and the described non-inverted cycle is corresponding with non-inverted pixel column.
5. the compensation method of reversal of poles according to claim 1, is characterized in that, also comprises:
Obtain in the duration T1 of a frame, a frame time T2 that the described number N of reversion pixel column, the number H1 of the pixel column of viewing area, the number H2 of the pixel column of clear area and the ascent stage of described data-signal that once reverse or decline stage continue;
According to described T1, N, H1, H2 and T2, calculate and obtain returing cycle and the non-inverted cycle of vertical pulse clock signal, and the returing cycle of output enable signal and non-inverted cycle; The returing cycle of described vertical pulse clock signal is identical with the returing cycle of described output enable signal, and the non-inverted cycle of described vertical pulse clock signal is identical with the non-inverted cycle of described output enable signal.
6. the compensation method of reversal of poles according to claim 5, is characterized in that, described calculating also obtains returing cycle and the step in non-inverted cycle of vertical pulse clock signal, comprising:
Utilize formula n=[H1/N], calculate reversion frequency n;
Utilize formula T
c=(T1-n*T2)/(H1+H2), calculates the non-inverted cycle T of described vertical pulse clock signal
c;
Utilize formula T
r=T
c+ T2, calculates the returing cycle T of described vertical pulse clock signal
r.
7. a compensation system for reversal of poles, is characterized in that, comprising:
First acquiring unit, for obtaining the data-signal corresponding with the pixel column that reverses, according to described data-signal, obtains ascent stage or the decline stage of described data-signal;
Compensating unit, for according to the ascent stage of described data-signal or decline stage, vertical pulse clock signal and output enable signal are set, the sweep signal corresponding with described reversion pixel column is opened after described data-signal ascent stage or decline stage terminate.
8. the compensation system of reversal of poles according to claim 7, it is characterized in that, described output enable signal comprises control level and non-controlling level, and ascent stage or the decline stage of the non-controlling level in described output enable signal and described data-signal are corresponding.
9. the compensation system of reversal of poles according to claim 8, is characterized in that, the control level in described output enable signal is low level, and the control level in described output enable signal is high level; The rising edge of described vertical pulse clock signal is corresponding with the rising edge of described output enable signal.
10. the compensation system of reversal of poles according to claim 8 or claim 9, it is characterized in that, the duration of control level described in the returing cycle of described output enable signal, identical with the duration of control level described in the non-inverted cycle at described output enable signal, described returing cycle is corresponding with described reversion pixel column, and the described non-inverted cycle is corresponding with non-inverted pixel column.
The compensation system of 11. reversal of poles according to claim 7, is characterized in that, also comprise:
Second acquisition unit, the time T2 that the duration T1 obtaining a frame, the number N of reversion pixel column of once reversing in a frame, the number H1 of the pixel column of viewing area, the number H2 of the pixel column of clear area and the ascent stage of described data-signal or decline stage continue;
Computing unit, for according to described T1, N, H1, H2 and T2, calculate and obtain returing cycle and the non-inverted cycle of vertical pulse clock signal, and the returing cycle of output enable signal and non-inverted cycle, described returing cycle is corresponding with described reversion pixel column, and the described non-inverted cycle is corresponding with non-inverted pixel column; The returing cycle of described vertical pulse clock signal is identical with the returing cycle of described output enable signal, and the non-inverted cycle of described vertical pulse clock signal is identical with the non-inverted cycle of described output enable signal.
The compensation system of 12. reversal of poles according to claim 11, is characterized in that, described computing unit, comprising:
First computing module, for utilizing formula n=[H1/N], calculates reversion frequency n;
Second computing module, for utilizing formula T
c=(T1-n*T2)/(H1+H2), calculates the non-inverted cycle T of described vertical pulse clock signal
c;
3rd computing module, for utilizing formula T
r=T
c+ T2, calculates the returing cycle T of described vertical pulse clock signal
r.
13. 1 kinds of liquid crystal display, is characterized in that, comprise the compensation system of the reversal of poles in the claims 7-12 described in any one.
14. liquid crystal display according to claim 13, is characterized in that, described liquid crystal display also comprises register, and described register is used for the time that the ascent stage of memory data signal or decline stage continue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206071.1A CN104766583B (en) | 2015-04-27 | 2015-04-27 | A kind of compensation method of polarity inversion, device and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206071.1A CN104766583B (en) | 2015-04-27 | 2015-04-27 | A kind of compensation method of polarity inversion, device and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104766583A true CN104766583A (en) | 2015-07-08 |
| CN104766583B CN104766583B (en) | 2017-07-04 |
Family
ID=53648369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510206071.1A Expired - Fee Related CN104766583B (en) | 2015-04-27 | 2015-04-27 | A kind of compensation method of polarity inversion, device and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104766583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910812A (en) * | 2019-12-18 | 2020-03-24 | 福州京东方光电科技有限公司 | Pixel voltage compensation method and device of display panel |
| CN113571025A (en) * | 2021-07-29 | 2021-10-29 | 惠科股份有限公司 | Driving method and circuit of display panel and display device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010043178A1 (en) * | 2000-02-04 | 2001-11-22 | Noboru Okuzono | Liquid crystal display |
| US20100309175A1 (en) * | 2009-06-03 | 2010-12-09 | Mitsubishi Electric Corporation | Method of driving a liquid crystal panel |
| CN102376274A (en) * | 2010-08-06 | 2012-03-14 | 群康科技(深圳)有限公司 | Liquid crystal display |
| WO2012063830A1 (en) * | 2010-11-09 | 2012-05-18 | シャープ株式会社 | Liquid crystal display device, display device, and gate signal line drive method |
| CN102968970A (en) * | 2012-11-01 | 2013-03-13 | 合肥京东方光电科技有限公司 | Driving device and driving method for display panel |
| CN203118407U (en) * | 2013-03-26 | 2013-08-07 | 京东方科技集团股份有限公司 | Display driving circuit and display device |
| CN103310756A (en) * | 2013-07-05 | 2013-09-18 | 合肥京东方光电科技有限公司 | Liquid crystal display panel polarity reversal driving method and device and display device with liquid crystal display panel polity reversal driving device |
| CN103810979A (en) * | 2013-12-31 | 2014-05-21 | 合肥京东方光电科技有限公司 | Liquid crystal display device and display diving method thereof |
| CN104123922A (en) * | 2014-07-21 | 2014-10-29 | 昆山龙腾光电有限公司 | Grid driving circuit and driving system and display device utilizing grid driving circuit |
| CN104253987A (en) * | 2013-06-25 | 2014-12-31 | 乐金显示有限公司 | Stereoscopic image display and driving method thereof |
| CN104361876A (en) * | 2014-12-08 | 2015-02-18 | 京东方科技集团股份有限公司 | Driving method, driving circuit and display device |
-
2015
- 2015-04-27 CN CN201510206071.1A patent/CN104766583B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010043178A1 (en) * | 2000-02-04 | 2001-11-22 | Noboru Okuzono | Liquid crystal display |
| US20100309175A1 (en) * | 2009-06-03 | 2010-12-09 | Mitsubishi Electric Corporation | Method of driving a liquid crystal panel |
| CN102376274A (en) * | 2010-08-06 | 2012-03-14 | 群康科技(深圳)有限公司 | Liquid crystal display |
| WO2012063830A1 (en) * | 2010-11-09 | 2012-05-18 | シャープ株式会社 | Liquid crystal display device, display device, and gate signal line drive method |
| CN102968970A (en) * | 2012-11-01 | 2013-03-13 | 合肥京东方光电科技有限公司 | Driving device and driving method for display panel |
| CN203118407U (en) * | 2013-03-26 | 2013-08-07 | 京东方科技集团股份有限公司 | Display driving circuit and display device |
| CN104253987A (en) * | 2013-06-25 | 2014-12-31 | 乐金显示有限公司 | Stereoscopic image display and driving method thereof |
| CN103310756A (en) * | 2013-07-05 | 2013-09-18 | 合肥京东方光电科技有限公司 | Liquid crystal display panel polarity reversal driving method and device and display device with liquid crystal display panel polity reversal driving device |
| CN103810979A (en) * | 2013-12-31 | 2014-05-21 | 合肥京东方光电科技有限公司 | Liquid crystal display device and display diving method thereof |
| CN104123922A (en) * | 2014-07-21 | 2014-10-29 | 昆山龙腾光电有限公司 | Grid driving circuit and driving system and display device utilizing grid driving circuit |
| CN104361876A (en) * | 2014-12-08 | 2015-02-18 | 京东方科技集团股份有限公司 | Driving method, driving circuit and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910812A (en) * | 2019-12-18 | 2020-03-24 | 福州京东方光电科技有限公司 | Pixel voltage compensation method and device of display panel |
| CN110910812B (en) * | 2019-12-18 | 2023-04-14 | 福州京东方光电科技有限公司 | Pixel voltage compensation method and device of display panel |
| CN113571025A (en) * | 2021-07-29 | 2021-10-29 | 惠科股份有限公司 | Driving method and circuit of display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104766583B (en) | 2017-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11069281B2 (en) | Shift register unit, gate driving circuit, display device, and driving method | |
| US20210201807A1 (en) | Shift register unit, gate driving circuit, display device and driving method | |
| US11984085B2 (en) | Shift register unit, gate driving circuit, display device and driving method | |
| US10950323B2 (en) | Shift register unit, control method thereof, gate driving device, display device | |
| US10593284B2 (en) | Shift register unit and method for driving same, shift register circuit and display apparatus | |
| US10629151B2 (en) | Shift register unit, gate driving circuit, display and gate driving method | |
| CN101572063B (en) | Liquid crystal display and method of driving the same | |
| US20210335198A1 (en) | Shift Register Unit, Gate Driving Circuit, Display Device, and Driving Method | |
| US9293223B2 (en) | Shift register unit, gate driving circuit and display device | |
| CN106531112B (en) | Shift register cell and its driving method, shift register and display device | |
| US20190005866A1 (en) | Shift Register Unit, Driving Method, Gate Driver on Array and Display Device | |
| US20160274713A1 (en) | Gate driving circuit and driving method thereof, and display apparatus | |
| US20150318052A1 (en) | Shift register unit, gate drive circuit and display device | |
| US20220005428A1 (en) | Shift register, shift register circuit and display device | |
| US9837024B2 (en) | Scan driving circuit and driving method thereof, array substrate and display apparatus | |
| US11120746B2 (en) | Shift register unit, gate driving circuit, display device and driving method | |
| US20210209993A1 (en) | Shift register, gate driver-on-array circuit and driving method thereof, display device | |
| CN103941439A (en) | Feed-through voltage compensating driving circuit and array substrate | |
| KR20210011025A (en) | Shift register unit, gate driving circuit, display device, and driving method | |
| CN108877731A (en) | Driving method, the display panel of display panel | |
| CN105321490A (en) | Array substrate line drive circuit, array substrate and liquid crystal display device | |
| US12014668B2 (en) | Shift register unit, gate driving circuit, display device, and driving method | |
| US20240194149A1 (en) | Shift Register Unit, Gate Driving Circuit, Display Device, and Driving Method | |
| CN107424552A (en) | Shift register cell, driving method, gate driving circuit and display device | |
| US20180047356A1 (en) | Shift register unit, method for driving same, gate driving circuit and display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 |