CN104882112A - Liquid crystal display panel and driving method thereof - Google Patents
Liquid crystal display panel and driving method thereof Download PDFInfo
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- CN104882112A CN104882112A CN201510359393.XA CN201510359393A CN104882112A CN 104882112 A CN104882112 A CN 104882112A CN 201510359393 A CN201510359393 A CN 201510359393A CN 104882112 A CN104882112 A CN 104882112A
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Abstract
The invention discloses a liquid crystal display panel and a driving method thereof. The method comprises the steps that: when the display image of a pixel unit is switched from a first brightness image to a second brightness image, a first driving voltage V1 is input to a pixel electrode of the pixel unit at a first frame of the second brightness image, and a first common voltage Vcom1 is input to a common electrode of the pixel unit, wherein the phase of the first driving voltage V1 is opposite to the phase of the first common voltage Vcom1, and the absolute value of the voltage difference between the first driving voltage V1 and the first common voltage Vcom1 is an over-driving voltage value needed by finishing the switching from the first brightness image to the second brightness image in the responding time of one frame, so that each pixel unit in the liquid crystal display panel is enabled to finish the switching from the first brightness image to the second brightness image in the responding time of one frame. Thus, a streaking phenomenon of the liquid crystal display panel in the prior art is prevented, and the display quality of the liquid crystal display panel is improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of display panels and driving method thereof.
Background technology
The response time of display panels refers to the time of its liquid crystal molecule needed for from an angular transition to another angle, and the speed that described liquid crystal molecule reverses is determined by the voltage difference being applied to described liquid crystal molecule two ends.When the voltage difference being applied to described liquid crystal molecule two ends is less, the reverse speed of described liquid crystal molecule is less, and the response time of described display panels is also longer.
Along with the development of display technique, the frame rate requirement of people to display panels is more and more higher, accordingly, requires that the response time required for every frame picture is shorter and shorter.But, in currently available technology, the driving force of data line drive circuit is limited, when making the display frame of described display panels be switched to white picture by black picture, the required response time is longer, even exceed the response time of a frame picture, cause display panels of the prior art to there is motion blur phenomenon.
Summary of the invention
For solving the problems of the technologies described above, embodiments providing a kind of display panels and driving method thereof, to alleviate the motion blur phenomenon that in prior art, display panels exists, improving the display quality of described display panels.
For solving the problem, embodiments provide following technical scheme:
A driving method for display panels, described display panels comprises multiple pixel cell, and this driving method comprises:
When the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, and input one first common electric voltage V to the public electrode of described pixel cell
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary;
Described second brightness picture pixel electrode from the second frame to described pixel cell input one second driving voltage V
2, to the public electrode input one second common electric voltage V of described pixel cell
com2, wherein, V
2=-V
1-V
com1, and V
com2=-V
com1;
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time; Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
A kind of display panels, is applied to above-mentioned driving method, comprises:
Many gate lines;
A plurality of data lines, described data line and described gate line insulate arranged in a crossed manner;
Multiple pixel cell, described pixel cell to be limited with described a plurality of data lines by described many gate lines and becomes array arrangement;
Multiple pixel electrode, pixel electrode described in each to be arranged in pixel cell described in each and to provide driving voltage by a described data line;
Multiple public electrode;
Data voltage driving circuit, for when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, and provides one first driving voltage V at the pixel electrode that the first frame of described second brightness picture is described pixel cell
1, the pixel electrode being described pixel cell at the second frame of described second brightness picture provides one second driving voltage V
2=-V
1-V
com1;
Common voltage drive circuit, for when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, and provides the first common electric voltage V at the public electrode that the first frame of described second brightness picture is described pixel cell
com1, the public electrode being described pixel cell at the second frame of described second brightness picture provides the second common electric voltage V
com2=-V
com1, described first driving voltage is contrary with the phase place of described first common electric voltage;
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time; Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the embodiment of the present invention provides, when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, and input one first common electric voltage V to the public electrode of described pixel cell
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary; Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time, to make in described display panels each pixel cell when switching to the second brightness picture by the first brightness picture, can complete within a frame picture response time, thus motion blur phenomenon existing in display panels in solution prior art, improve the display quality of described display panels.And, the driving method of the display panels that the embodiment of the present invention provides, by regulating the input voltage at pixel electrode and public electrode two ends in described pixel cell simultaneously, obtain the overdrive voltage of described pixel cell, instead of only by regulating the input voltage of pixel electrode one end in described pixel cell, obtain the overdrive voltage of described pixel cell, require lower to the driving force of driving circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The process flow diagram of the driving method for liquid crystal display panel that Fig. 1 provides for one embodiment of the invention;
Fig. 2 is the sequential chart of driving method for liquid crystal display panel shown in Fig. 1;
The process flow diagram of the driving method for liquid crystal display panel that Fig. 3 provides for another embodiment of the present invention;
Fig. 4 is the sequential chart of driving method for liquid crystal display panel shown in Fig. 3;
The process flow diagram of the driving method for liquid crystal display panel that Fig. 5 provides for another embodiment of the present invention;
The process flow diagram of the driving method for liquid crystal display panel that Fig. 6 provides for another embodiment of the present invention;
The sequential chart of the driving method for liquid crystal display panel that Fig. 7 provides for another embodiment of the present invention;
The sequential chart of the driving method for liquid crystal display panel that Fig. 8 provides for another embodiment of the present invention;
The sequential chart of the driving method for liquid crystal display panel that Fig. 9 provides for another embodiment of the present invention;
The sequential chart of the driving method for liquid crystal display panel that Figure 10 provides for another embodiment of the present invention;
The structural representation of the display panels that Figure 11 provides for one embodiment of the invention;
The structural representation of the display panels that Figure 12 provides for another embodiment of the present invention.
Embodiment
Example is reversed to for arranging below with the inversion mode of described display panels, in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of driving method of display panels, described display panels comprises multiple pixel cell, and as depicted in figs. 1 and 2, this driving method comprises:
S1: when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, and input one first common electric voltage V to the public electrode of described pixel cell
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary;
S2: described second brightness picture pixel electrode from the second frame to described pixel cell input one second driving voltage V
2, to the public electrode input one second common electric voltage V of described pixel cell
com2, wherein, V
2=-V
1-V
com1, and V
com2=-V
com1.
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value in a frame picture response time T, namely described pixel cell switches to described second brightness picture by described first brightness picture and complete required driving voltage value in a frame picture response time T.Because it is greater than driving voltage value required when described pixel cell second brightness picture normally shows, therefore be called overdrive voltage value.Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
It should be noted that, in one embodiment of the invention, at the described first driving voltage V that the first frame of described second brightness picture inputs to the pixel electrode of described pixel cell
1for on the occasion of, described first common electric voltage is negative value, in another embodiment of the present invention, at the described first driving voltage V that the first frame of described second brightness picture inputs to the pixel electrode of described pixel cell
1for negative value, described first common electric voltage be on the occasion of, the present invention does not limit this, as long as ensure that described first driving voltage is contrary with described first common electric voltage phase place.
On the basis of above-described embodiment, in one embodiment of the invention, the second brightness picture of described pixel cell comprises M frame, and M is even number, and in the present embodiment, as shown in Figure 3 and Figure 4, this driving method also comprises:
S3: the pixel electrode being described pixel cell at the 2N+1 frame of described second brightness picture provides one the 3rd driving voltage V
3=-V
2=-(-V
1-V
com1)=V
1+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
S4: the pixel electrode being described pixel cell at the 2N+2 frame of described second brightness picture provides described second driving voltage V
2=-V
1-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
Wherein, M be greater than 2 positive integer, and N be followed successively by [1, M/2) in arbitrary positive integer.
In another embodiment of the present invention, described second brightness picture comprises M frame, and M is odd number, and in the present embodiment, as shown in Figure 5, this driving method also comprises:
S5: the pixel electrode being described pixel cell at the 3rd frame of described second brightness picture provides one the 3rd driving voltage V
3=-V
2, the public electrode for described pixel cell provides described first common electric voltage V
com1.Wherein, M be greater than 2 positive integer.
It should be noted that, on the basis of above-described embodiment, in one embodiment of the invention, when M is odd number and is greater than 3, as shown in Figure 6, this driving method also comprises:
S6: the pixel electrode being described pixel cell at the 2N frame of described second brightness picture provides described second driving voltage V
2=-V
1-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
S7: the pixel electrode being described pixel cell at the 2N+1 frame of described second brightness picture provides described 3rd driving voltage V
3=-V
2=-(-V
1-V
com1)=V
1+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
Wherein, arbitrary positive integer during N is followed successively by (1, M/2).
On the basis of above-mentioned any embodiment, in one embodiment of the invention, described first brightness picture is 0 rank brightness picture, described second brightness picture is 255 rank brightness pictures, in another embodiment of the present invention, described first brightness picture is 255 rank brightness pictures, described second brightness picture is 0 rank brightness picture, in other embodiments of the invention, described first brightness picture and the second brightness picture can also be arbitrary rank brightness picture between 0-255 rank, the present invention does not limit this, as long as described first brightness picture and the second brightness picture are not same order brightness picture.
On the basis of above-mentioned any embodiment, when described first brightness picture is 0 rank brightness picture, described second brightness picture is 255 rank brightness pictures, or described first brightness picture is 255 rank brightness pictures, when described second-order brightness picture is 0 rank brightness picture, as shown in Figure 7, this driving method also comprises:
When the display frame of described pixel cell switches to the 3rd brightness picture by the first brightness picture, the pixel electrode being described pixel cell at the first frame of described 3rd brightness picture provides a four-wheel drive voltage V
4, and provide described first common electric voltage V to the public electrode of described pixel cell
com1, and described 4th common electric voltage is contrary with described first common electric voltage phase place;
The pixel electrode being described pixel cell at the second frame of described 3rd brightness picture provides one the 5th driving voltage V
5=-V
4-V
com1, and provide described second common electric voltage V to the public electrode of described pixel cell
com2;
Wherein, described four-wheel drive voltage V
4with the V of described first common electric voltage
com1the absolute value of voltage difference be switch to described 3rd brightness picture by described first brightness picture and complete required overdrive voltage value at a frame picture response time T1; Described 5th driving voltage V
5with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described 3rd brightness picture; Described 3rd brightness picture is for presetting rank brightness picture, and described default rank are 0-255 rank, do not comprise endpoint value.
On the basis of above-described embodiment, in one embodiment of the invention, the 3rd brightness picture of described pixel cell comprises M frame, and when M is even number, as shown in Figure 8, this driving method also comprises:
The pixel electrode being described pixel cell at the 2N+1 frame of described 3rd brightness picture provides one the 6th driving voltage V
6=-V
5=-(-V
4-V
com1)=V
4+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
The pixel electrode being described pixel cell at the 2N+2 frame of described 3rd brightness picture provides described 5th driving voltage V
5=-V
4-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
Wherein, M be greater than 2 positive integer, and N be followed successively by [1, M/2) in arbitrary positive integer.
In another embodiment of the present invention, described second brightness picture comprises M frame, and M is odd number, and in the present embodiment, this driving method also comprises:
The pixel electrode being described pixel cell at the 3rd frame of described 3rd brightness picture provides one the 6th driving voltage V
6=-V
5=-(-V
4-V
com1)=V
4+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1.Wherein, M is greater than 2.
It should be noted that, on the basis of above-described embodiment, in one embodiment of the invention, when M is odd number and is greater than 3, this driving method also comprises:
The pixel electrode being described pixel cell at the 2N frame of described 3rd brightness picture provides described 5th driving voltage V
5=-V
4-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
The pixel electrode being described pixel cell at the 2N+1 frame of described 3rd brightness picture provides described 6th driving voltage V
6=-V
5=-(-V
4-V
com1)=V
4+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
Wherein, arbitrary positive integer during N is followed successively by (1, M/2).
On the basis of above-mentioned any embodiment, in one embodiment of the invention, as shown in Figure 9, this driving method also comprises:
When the display frame of described pixel cell switches to the 3rd brightness picture by the second brightness picture, the pixel electrode being described pixel cell at the first frame of described 3rd brightness picture provides one the 7th driving voltage V
7, and provide described first common electric voltage V to the public electrode of described pixel cell
com1, and described 7th common electric voltage is contrary with described first common electric voltage phase place;
The pixel electrode being described pixel cell at the second frame of described 3rd brightness picture provides one the 8th driving voltage V
8=-V
7-V
com1, and provide described second common electric voltage V to the public electrode of described pixel cell
com2;
Wherein, described 7th driving voltage V
7with the V of described first common electric voltage
com1the absolute value of voltage difference be switch to described 3rd brightness picture by described second brightness picture and complete required overdrive voltage value at a frame picture response time T2; Described 8th driving voltage V
8with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described 3rd brightness picture; Described 3rd brightness picture is for presetting rank brightness picture, and described default rank are 0-255 rank, do not comprise endpoint value.
On the basis of above-described embodiment, in one embodiment of the invention, the 3rd brightness picture of described pixel cell comprises M frame, and when M is even number, as shown in Figure 10, this driving method also comprises:
The pixel electrode being described pixel cell at the 2N+1 frame of described 3rd brightness picture provides one the 9th driving voltage V
9=-V
8=-(-V
7-V
com1)=V
7+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
The pixel electrode being described pixel cell at the 2N+2 frame of described 3rd brightness picture provides described 8th driving voltage V
8=-V
7-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
Wherein, M is greater than 2, and N be followed successively by [1, M/2) in arbitrary positive integer.
In another embodiment of the present invention, described second brightness picture comprises M frame, and M is odd number, and in the present embodiment, this driving method also comprises:
The pixel electrode being described pixel cell at the 3rd frame of described 3rd brightness picture provides one the 9th driving voltage V
9=-V
8=-(-V
7-V
com1)=V
7+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1.Wherein, M is greater than 2.
It should be noted that, on the basis of above-described embodiment, in one embodiment of the invention, when M is odd number and is greater than 3, this driving method also comprises:
The pixel electrode being described pixel cell at the 2N frame of described 3rd brightness picture provides described 8th driving voltage V
8=-V
7-V
com1, the public electrode for described pixel cell provides described second common electric voltage V
com2;
The pixel electrode being described pixel cell at the 2N+1 frame of described 3rd brightness picture provides described 9th driving voltage V
9=-V
8=-(-V
7-V
com1)=V
7+ V
com1, the public electrode for described pixel cell provides described first common electric voltage V
com1;
Wherein, arbitrary positive integer during N is followed successively by (1, M/2).
It should be noted that, on the basis of above-mentioned any embodiment, in one embodiment of the invention, this driving method can also comprise:
When the display frame of described pixel cell switches to the first brightness picture by the second brightness picture, at the first frame of described first brightness picture to pixel electrode input 1 the tenth driving voltage of described pixel cell, and input the first common electric voltage to the public electrode of described pixel cell;
At the second frame of described first brightness picture, to pixel electrode input 1 the 11 driving voltage of described pixel cell, and input the second common electric voltage to the public electrode of described pixel cell;
Wherein, the absolute value of the voltage difference of described tenth driving voltage and described first common electric voltage is for switch to the first brightness picture by described second brightness picture, and required overdrive voltage value is completed within a frame picture response time, the absolute value of the voltage difference of described 11 driving voltage and described second common electric voltage is the driving voltage value required when normally showing of described first brightness picture.
On the basis of above-mentioned any embodiment, in one embodiment of the invention, this driving method can also comprise:
When the display frame of described pixel cell switches to the first brightness picture by the 3rd brightness picture, at the first frame of described first brightness picture to pixel electrode input 1 the 12 driving voltage of described pixel cell, and input the first common electric voltage to the public electrode of described pixel cell;
At the second frame of described first brightness picture, to pixel electrode input 1 the 13 driving voltage of described pixel cell, and input the second common electric voltage to the public electrode of described pixel cell;
Wherein, the absolute value of the voltage difference of described 12 driving voltage and described first common electric voltage is for switch to the first brightness picture by described 3rd brightness picture, and required overdrive voltage value is completed within a frame picture response time, the absolute value of the voltage difference of described 13 driving voltage and described second common electric voltage is the driving voltage value required when normally showing of described first brightness picture.
On the basis of above-mentioned any embodiment, in one embodiment of the invention, this driving method can also comprise:
When the display frame of described pixel cell switches to the second brightness picture by the 3rd brightness picture, at the first frame of described second brightness picture to pixel electrode input 1 the tenth four-wheel drive voltage of described pixel cell, and input the first common electric voltage to the public electrode of described pixel cell;
At the second frame of described second brightness picture, to pixel electrode input 1 the 15 driving voltage of described pixel cell, and input the second common electric voltage to the public electrode of described pixel cell;
Wherein, the absolute value of the voltage difference of described tenth four-wheel drive voltage and described first common electric voltage is for switch to the second brightness picture by described 3rd brightness picture, and required overdrive voltage value is completed within a frame picture response time, the absolute value of the voltage difference of described 15 driving voltage and described second common electric voltage is the driving voltage value required when normally showing of described second brightness picture.
Known from the above mentioned, the driving method of the display panels that the embodiment of the present invention provides, when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, and input one first common electric voltage V to the public electrode of described pixel cell
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary; Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time, to make in described display panels each pixel cell when switching to the second brightness picture by the first brightness picture, can complete in a frame picture response time again, thus motion blur phenomenon existing in display panels in solution prior art, improve the display quality of described display panels.
And, the driving method of the display panels that the embodiment of the present invention provides, by regulating the input voltage at pixel electrode and public electrode two ends in described pixel cell simultaneously, obtain the overdrive voltage of described pixel cell, instead of only by regulating the input voltage of pixel electrode one end in described pixel cell, obtain the overdrive voltage of described pixel cell, require lower to the driving force of driving circuit.
Accordingly, the embodiment of the present invention additionally provides a kind of display panels, is applied to the driving method of the display panels that above-mentioned any embodiment provides, and as shown in figure 11, this display panels comprises:
Many gate lines 10;
A plurality of data lines 20, described data line 20 insulate arranged in a crossed manner with described gate line 10;
Multiple pixel cell 30, described pixel cell 30 is limited by described many gate lines 10 with described a plurality of data lines 20 and becomes array arrangement;
Multiple pixel electrode (not shown), pixel electrode described in each to be arranged at described in each in pixel cell 30 and to provide driving voltage by a described data line 20;
Multiple public electrode (not shown);
Data voltage driving circuit 40, for when the display frame of described pixel cell 30 switches to the second brightness picture by the first brightness picture, and provides one first driving voltage V at the pixel electrode that the first frame of described second brightness picture is described pixel cell 30
1, the pixel electrode being described pixel cell 30 at the second frame of described second brightness picture provides one second driving voltage V
2=-V
1-V
com1;
Common voltage drive circuit 50, for when the display frame of described pixel cell 30 switches to the second brightness picture by the first brightness picture, and provides the first common electric voltage V at the public electrode that the first frame of described second brightness picture is described pixel cell 30
com1, the public electrode being described pixel cell 30 at the second frame of described second brightness picture provides the second common electric voltage V
com2=-V
com1, described first driving voltage is contrary with the phase place of described first common electric voltage;
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time; Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
On the basis of above-described embodiment, in one embodiment of the invention, described data voltage driving circuit 40, also for when the display frame of described pixel cell 30 switches to the 3rd brightness picture by the first brightness picture, provides four-wheel drive voltage V at the first frame of described 3rd brightness picture for the pixel electrode of described pixel cell 30
4, the pixel electrode being described pixel cell 30 at the second frame of described 3rd brightness picture provides the 5th driving voltage V
5=-V
4-V
com1;
Wherein, described four-wheel drive voltage V
4with the V of described first common electric voltage
com1the absolute value of voltage difference be switch to described 3rd brightness picture by described first brightness picture and complete required overdrive voltage value in a frame picture response time; Described 5th driving voltage V
5with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described 3rd brightness picture; Described 3rd brightness picture is for presetting rank brightness picture, and described default rank are 0-255 rank, do not comprise endpoint value.
It should be noted that, in the present embodiment, described common voltage drive circuit 50 is also for when the display frame of described pixel cell 30 switches to the 3rd brightness picture by the first brightness picture, and the public electrode being described pixel cell 30 at the first frame of described 3rd brightness picture provides the first common electric voltage V
com1, the public electrode being described pixel cell 30 at the second frame of described 3rd brightness picture provides the second common electric voltage V
com2=-V
com1.
On the basis of above-mentioned any embodiment, in one embodiment of the invention, as shown in figure 12, described common voltage drive circuit 50 comprises the first common voltage drive circuit 51 and the second common voltage drive circuit 52, wherein, described first common voltage drive circuit 51 is electrically connected with odd column pixel unit 30, described second common voltage drive circuit 52 is electrically connected with even column pixels unit 30, wherein, the common electric voltage equal and opposite in direction that described first common voltage drive circuit 51 and the second common voltage drive circuit 52 provide, phase place is contrary.
In sum, in the display panels that the embodiment of the present invention provides, described data voltage driving circuit when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, described common voltage drive circuit when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture public electrode from the first frame to described pixel cell input one first common electric voltage V
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary; Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time, to make in described display panels each pixel cell when switching to the second brightness picture by the first brightness picture, can complete within a frame picture response time, thus motion blur phenomenon existing in display panels in solution prior art, improve the display quality of described display panels.
And, the display panels that the embodiment of the present invention provides, by regulating the input voltage at pixel electrode and public electrode two ends in described pixel cell simultaneously, obtain the overdrive voltage of described pixel cell, instead of only by regulating the input voltage of pixel electrode one end in described pixel cell, obtain the overdrive voltage of described pixel cell, require lower to the driving force of its internal drive circuits.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a driving method for display panels, is characterized in that, described display panels comprises multiple pixel cell, and this driving method comprises:
When the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, described second brightness picture pixel electrode from the first frame to described pixel cell input one first driving voltage V
1, and input one first common electric voltage V to the public electrode of described pixel cell
com1, and described first driving voltage V
1with described first common electric voltage V
com1phase place contrary;
Described second brightness picture pixel electrode from the second frame to described pixel cell input one second driving voltage V
2, to the public electrode input one second common electric voltage V of described pixel cell
com2, wherein, V
2=-V
1-V
com1, and V
com2=-V
com1;
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time; Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
2. driving method according to claim 1, is characterized in that, when described second brightness picture comprises M frame, and when M is even number, the method also comprises:
At pixel electrode input one the 3rd driving voltage V that the 2N+1 frame of described second brightness picture is described pixel cell
3=-V
2, be the described first common electric voltage V of public electrode input of described pixel cell
com1;
At the described second driving voltage V of pixel electrode input that the 2N+2 frame of described second brightness picture is described pixel cell
2=-V
1-V
com1, be the described second common electric voltage V of public electrode input of described pixel cell
com2;
Wherein, M be greater than 2 positive integer, and N be followed successively by [1, M/2) in arbitrary positive integer.
3. driving method according to claim 1, is characterized in that, when described second brightness picture comprises M frame, and when M is odd number, the method also comprises:
At pixel electrode input one the 3rd driving voltage V that the 3rd frame of described second brightness picture is described pixel cell
3=-V
2, be the described first common electric voltage V of public electrode input of described pixel cell
com1;
Wherein, M be greater than 2 positive integer.
4. driving method according to claim 3, is characterized in that, when M is greater than 3, the method also comprises:
At the described second driving voltage V of pixel electrode input that the 2N frame of described second brightness picture is described pixel cell
2=-V
1-V
com1, be the described second common electric voltage V of public electrode input of described pixel cell
com2;
At the described 3rd driving voltage V of pixel electrode input that the 2N+1 frame of described second brightness picture is described pixel cell
3=-V
2, be the described first common electric voltage V of public electrode input of described pixel cell
com1;
Wherein, arbitrary positive integer during N is followed successively by (1, M/2).
5. the driving method according to any one of claim 1-4, is characterized in that, described first brightness picture is 0 rank brightness picture, and described second picture is 255 rank brightness pictures.
6. driving method according to claim 5, is characterized in that, the method also comprises:
When the display frame of described pixel cell switches to the 3rd brightness picture by the first brightness picture, be the pixel electrode input one four-wheel drive voltage V of described pixel cell at the first frame of described 3rd brightness picture
4, and input described first common electric voltage V to the public electrode of described pixel cell
com1, and described 4th common electric voltage is contrary with described first common electric voltage phase place;
At pixel electrode input one the 5th driving voltage V that the second frame of described 3rd brightness picture is described pixel cell
5=-V
4-V
com1, and input described second common electric voltage V to the public electrode of described pixel cell
com2;
Wherein, described four-wheel drive voltage V
4with the V of described first common electric voltage
com1the absolute value of voltage difference be switch to described 3rd brightness picture by described first brightness picture and complete required overdrive voltage value in a frame picture response time; Described 5th driving voltage V
5with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described 3rd brightness picture; Described 3rd brightness picture is for presetting rank brightness picture, and described default rank are arbitrary rank in 0-255 rank, do not comprise endpoint value.
7. a display panels, is applied to the driving method described in any one of claim 1-6, it is characterized in that, comprising:
Many gate lines;
A plurality of data lines, described data line and described gate line insulate arranged in a crossed manner;
Multiple pixel cell, described pixel cell to be limited with described a plurality of data lines by described many gate lines and becomes array arrangement;
Multiple pixel electrode, pixel electrode described in each to be arranged in pixel cell described in each and to provide driving voltage by a described data line;
Multiple public electrode;
Data voltage driving circuit, for when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, and provides one first driving voltage V at the pixel electrode that the first frame of described second brightness picture is described pixel cell
1, the pixel electrode being described pixel cell at the second frame of described second brightness picture provides one second driving voltage V
2=-V
1-V
com1;
Common voltage drive circuit, for when the display frame of described pixel cell switches to the second brightness picture by the first brightness picture, and provides the first common electric voltage V at the public electrode that the first frame of described second brightness picture is described pixel cell
com1, the public electrode being described pixel cell at the second frame of described second brightness picture provides the second common electric voltage V
com2=-V
com1, described first driving voltage is contrary with the phase place of described first common electric voltage;
Wherein, described first driving voltage V
1with described first common electric voltage V
com1the absolute value of voltage difference be switch to described second brightness picture by described first brightness picture and complete required overdrive voltage value within a frame picture response time; Described second driving voltage V
2with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described second brightness picture.
8. display panels according to claim 7, it is characterized in that, described data voltage driving circuit is also for when the display frame of described pixel cell switches to the 3rd brightness picture by the first brightness picture, and the pixel electrode being described pixel cell at the first frame of described 3rd brightness picture provides four-wheel drive voltage V
4, the pixel electrode being described pixel cell at the second frame of described 3rd brightness picture provides the 5th driving voltage V
5=-V
4-V
com1;
Wherein, described four-wheel drive voltage V
4with the V of described first common electric voltage
com1the absolute value of voltage difference be switch to described 3rd brightness picture by described first brightness picture and complete required overdrive voltage value in a frame picture response time; Described 5th driving voltage V
5with described second common electric voltage V
com2the absolute value of voltage difference be the driving voltage value required when normally showing of described 3rd brightness picture; Described 3rd brightness picture is for presetting rank brightness picture, and described default rank are arbitrary rank in 0-255 rank, do not comprise endpoint value.
9. display panels according to claim 7, it is characterized in that, described common voltage drive circuit comprises the first common voltage drive circuit and the second common voltage drive circuit, wherein, described first common voltage drive circuit is electrically connected with odd column pixel unit, and described second common voltage drive circuit is electrically connected with even column pixels unit, wherein, the common electric voltage equal and opposite in direction that described first common voltage drive circuit and the second common voltage drive circuit provide, phase place is contrary.
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