CN103278981A - Liquid crystal display panel and driving method thereof - Google Patents
Liquid crystal display panel and driving method thereof Download PDFInfo
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- CN103278981A CN103278981A CN2012105333613A CN201210533361A CN103278981A CN 103278981 A CN103278981 A CN 103278981A CN 2012105333613 A CN2012105333613 A CN 2012105333613A CN 201210533361 A CN201210533361 A CN 201210533361A CN 103278981 A CN103278981 A CN 103278981A
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Abstract
The invention provides a liquid crystal display panel and a driving method of the liquid crystal display panel. The liquid crystal display panel comprises a plurality of pixel units which are arranged in an array mode, a first common electrode wire and a second common electrode wire, wherein more than two successive rows of successive pixel units form one set, and multiple sets of pixel units are formed. Any two adjacent rows of pixel units in each set are respectively connected with the first common electrode wire and the second common electrode wire, the last row of pixel units of the former set of the two adjacent sets and the first row of pixel units of the later set of the two adjacent sets are connected to the same common electrode wire, the common voltage reversing cycle of the first common electrode wire and the common voltage reversing cycle of the second common electrode wire are the same and mutually opposite in phase, and every time one set of the pixel units is scanned, the common voltage reversing cycle of the first common electrode wire and the common voltage reversing cycle of the second common electrode wire are reversed once. The liquid crystal display panel and the driving method of the liquid crystal display panel can avoid the phenomena of whitening, blackening and abnormal gradual change of colors, and can lower the power consumption.
Description
Technical field
The present invention relates to flat panel display, relate in particular to a kind of display panels and driving method thereof.
Background technology
TFT (Thin Film Transistor, Thin Film Transistor (TFT)) refers to that each the liquid crystal pixel cells point on the LCD all is to be driven by the thin film transistor (TFT) that is integrated in thereafter, thereby can accomplish high-speed, high brightness, high-contrast display screen information, common TFT-LCD (Thin Film Transistor-LCD) is a kind of in most LCD.
Traditional liquid crystal indicator rotates to show image by using the electric field controls liquid crystal molecule.As shown in Figure 1, traditional liquid crystal indicator generally includes: liquid crystal panel 100 is formed at many data lines 101 on the liquid crystal panel 100, many gate lines 102, public electrode wire 103, gate line circuit 104, data line circuit 105 and public electrode wire output circuits 106.
Fig. 1 is the structural representation of a display panels in the prior art.As shown in Figure 1, the definition first direction is vertical direction, and the definition second direction is horizontal direction.Described data line 101 extends upward in first party, and described gate line 102 extends upward and intersects with described data line 101 in second party, and described public electrode wire 103 and described gate line 102 are parallel and intersect with described data line 101.Described many data lines 101 and gate line 102 form the pixel cell 110 of arrayed, also dispose thin film transistor (TFT) (TFT) in each pixel cell 110.In addition, liquid crystal panel 100 also is equipped with memory capacitance C
ST, be used for keeping liquid crystal cell C
LCThe voltage of middle pixel electrode.One end of described each gate line 102 connects gate line circuit 104, and described gate line circuit 104 is used for providing grid voltage to this gate line 102; Described data line 101 links to each other with described data line circuit 105, and described data line circuit 105 is used for providing data voltage to described data line 101; Described public electrode wire 103 links to each other with described public electrode wire output circuit 106, and described public electrode wire output circuit 106 is used for providing common electric voltage Vcom by described public electrode wire 103 to every capable pixel cell 110.
After gate line circuit 104 provides the grid of a grid voltage to the TFT of corresponding line pixel cell 110 by gate line 102, corresponding TFT is opened, when at this moment if data line 101 provides a driving voltage to provide a common electric voltage Vcom to pixel cell 110 to pixel cell 110 and public electrode wire 103, thereby then can change the transmittance of the arrangement control pixel cell 110 of liquid crystal molecule; The TFT of remaining row pixel cell 110 then is in closed condition.
In order to keep the electric polarity of liquid crystal molecule, mainly be divided into the type of drive of the constant type of drive of common electric voltage Vcom and common electric voltage Vcom upset for the type of drive of liquid crystal indicator.Type of drive commonly used is the type of drive of common electric voltage Vcom upset, Fig. 2 is the sequential chart of common electric voltage in the display panels shown in Figure 1, as shown in Figure 2, in order to keep the electric polarity of liquid crystal molecule, common electric voltage Vcom need be when every scanning one-row pixels unit 110, i.e. upset once, then in each frame of scanning liquid crystal panel 100, common electric voltage Vcom will overturn many times, and it is more that then common electric voltage Vcom discharges and recharges number of times, and the power consumption of liquid crystal indicator is higher.
For solving the problems of the technologies described above, industry proposes to adopt two common electric voltage Vcom1 and Vcom2, and Fig. 3 is the structural representation of another display panels in the prior art.As shown in Figure 3, article one, public pressure wire 103a provides the first common electric voltage Vcom1 for the pixel cell 110 of all odd-numbered lines, second public pressure wire 103b provides the second common electric voltage Vcom2 for the pixel cell 110 of all even number lines, wherein, the first common electric voltage Vcom1 keeps the upset cycle identical and anti-phase each other with the second common electric voltage Vcom2, and the high voltage of the first preferable common electric voltage Vcom1 and the second common electric voltage Vcom2 is all identical with low-voltage.Fig. 4 is the sequential chart of common electric voltage in the display panels shown in Figure 3, and as shown in Figure 4, the first common electric voltage Vcom1 and the second common electric voltage Vcom2 only need in each frame time of scanning liquid crystal panel 100 upset once.Yet, the structure existing problems of liquid crystal panel 100 shown in Figure 3: when a frame begins, the first common electric voltage Vcom1 and the second common electric voltage Vcom2 carry out once inside out, when each gate line circuit 104 is exported grid voltages to the pixel cell 110 of connected gate line 102 connections successively then, the TFT of this row pixel cell opens, other row pixel cells 110 are closed, from top to bottom every gate line is exported grid voltage successively, then every capable pixel cell 100 is opened successively from top to bottom, therefore in a frame time, more arrive the pixel cell 110 of back row and wait for that the time of opening is more long.For example when the first common electric voltage Vcom1 turn to high level by low level, memory capacitance C in the pixel cell of all odd-numbered lines
STThe terminal voltage moment that links to each other with the first common electric voltage Vcom1 turn to high level by low level, for the pixel cell of the odd-numbered line that is not unlocked, since capacitance coupling effect, memory capacitance C
STThe other end can moment be drawn high higher, the drain voltage of corresponding TFT will be drawn high too much, and the drain voltage of TFT that is in shutoff is more high, more easy generation leaky, therefore it is more long that the drain voltage that is in the TFT of shutoff is in the high-tension time, and leaky is more serious.And whole front panel from top to bottom leaky is serious all the more, and the drift of the gray scale voltage that leaky causes is also serious all the more, and then causes whole liquid crystal panel 100 whiten from top to bottom, turn black, the be off color phenomenon of normal gradual change.
Summary of the invention
The phenomenon and lower display panels and the driving method thereof of power consumption that the purpose of this invention is to provide a kind of normal gradual change of can avoiding whitening, turn black, be off color.
For addressing the above problem, a kind of display panels of the present invention, described display panels comprise pixel cell, first public electrode wire and second public electrode wire of some arrayed, are one group with the continuous above pixel cell of two row successively, form many groups; Wherein, any adjacent two row pixel cells in each group are connected to described first public electrode wire and second public electrode wire respectively, last column pixel cell of last group is connected to same public electrode wire with the first row pixel cell of one group of back in adjacent two groups, the common electric voltage upset cycle that described first public electrode wire and described second public electrode wire provide is identical and anti-phase each other, and during the described pixel cell of one group of every scanning described first public electrode wire and described second public electrode wire the common electric voltage upset once.
Further, the high voltage of the common electric voltage that first public electrode wire provides is identical with the high voltage of the common electric voltage that described second public electrode wire provides, and the low-voltage of the common electric voltage that provides of the low-voltage of the common electric voltage that provides of first public electrode wire and described second public electrode wire is identical.
Further, in the scan period of a frame, the number of times of the common electric voltage of described first public electrode wire or second public electrode wire upset is the odd number more than or equal to 3.
Further, the incomplete same or complete difference of the line number of every group of pixel cell that comprises.
Further, it is capable that the line number of the pixel cell that described display panels comprises is N, and described N is the integer more than or equal to 2.
Further, described N is the even number more than or equal to 2.
Further, described N is the odd number more than or equal to 3.
The present invention also provides a kind of driving method of display panels, in the scan period of a frame, comply with the line scanning of advancing from the first row pixel cell, the described pixel cell that described first public electrode wire and described second public electrode wire are respectively coupled provides common electric voltage, and every upset once, is converted to low-voltage or is high voltage by low voltage transition by high voltage.
Further, the high voltage of the common electric voltage that first public electrode wire provides is identical with the high voltage of the common electric voltage that described second public electrode wire provides, and the low-voltage of the common electric voltage that provides of the low-voltage of the common electric voltage that provides of first public electrode wire and described second public electrode wire is identical.
Further, in the scan period of a frame, the number of times of the common electric voltage of described first public electrode wire or second public electrode wire upset is the odd number more than or equal to 3.
Further, every group of pixel cell line number that comprises is identical or different.
Further, it is capable that the line number of the pixel cell that described display panels comprises is N, and described N is the integer more than or equal to 2.
Further, described N is the even number more than or equal to 2.
Further, described N is the odd number more than or equal to 3.
Further, every group of pixel cell line number difference that comprises, the time of the each upset of the common electric voltage of described first public electrode wire and described second public electrode wire is determined according to the line number of every group of pixel cell.
Display panels of the present invention is one group with the continuous above pixel cell of two row successively, form many groups, and adopt first public electrode wire and second public electrode wire to provide common electric voltage for described pixel cell, wherein any adjacent two row pixel cells in each group are connected to described first public electrode wire and second public electrode wire respectively, last column pixel cell of last group is connected to same public electrode wire with the first row pixel cell of one group of back in adjacent two groups, in each frame time of scanning display panels, the common electric voltage upset of described first public electrode wire and described second public electrode wire once during the described pixel cell of one group of every scanning; Namely avoid the common electric voltage of every scanning one-row pixels unit first public electrode wire and described second public electrode wire all will overturn once, reduced the common electric voltage charging times, and then reduced the power consumption of liquid crystal indicator; And avoid in the time of a frame, pixel cell is waited for the overlong time of opening in the row of follow-up unlatching from top to bottom, reduce the generation of leaky, avoid the drift of gray scale voltage serious all the more, and then avoid whole liquid crystal panel occur whitening from top to bottom, turn black, the be off color phenomenon of normal gradual change.
Description of drawings
Fig. 1 is the structural representation of a display panels in the prior art;
Fig. 2 is the sequential chart of common electric voltage in the display panels shown in Figure 1;
Fig. 3 is the structural representation of another display panels in the prior art;
Fig. 4 is the sequential chart of common electric voltage in the display panels shown in Figure 3;
Fig. 5 is the structural representation of display panels in one embodiment of the invention;
Fig. 6 is the sequential chart of common electric voltage in the display panels shown in Figure 5;
Fig. 7 is the structural representation of display panels in one embodiment of the invention;
Fig. 8 is the sequential chart of common electric voltage in the display panels shown in Figure 7.
Embodiment
For making content of the present invention clear more understandable, below in conjunction with Figure of description, content of the present invention is described further.Certainly the present invention is not limited to this specific embodiment, and the known general replacement of those skilled in the art also is encompassed in protection scope of the present invention.
Secondly, the present invention utilizes synoptic diagram to carry out detailed statement, and when example of the present invention was described in detail in detail, for convenience of explanation, synoptic diagram did not amplify according to general ratio is local, should be with this as limitation of the invention.
Fig. 5 is the structural representation of display panels in one embodiment of the invention.As shown in Figure 5, the invention provides a kind of display panels 10, described display panels 10 comprises the pixel cell 11 of some arrayed, the first public electrode wire 13a that is connected to public electrode wire output circuit 16 and the second public electrode wire 13b, be one group with the continuous above pixel cell 11 of two row successively, form many groups; Wherein, any adjacent two row pixel cells 11 in each group are connected to the described first public electrode wire 13a and the second public electrode wire 13b respectively; And shown in square frame 20, last column pixel cell 11 of last group is connected to same public electrode wire with the first row pixel cell 11 of one group of back in adjacent two groups, the common electric voltage upset cycle that the described first public electrode wire 13a and the described second public electrode wire 13b provide is identical and anti-phase each other, and the common electric voltage Vcom1 of the described first public electrode wire 13a and the described second public electrode wire 13b and Vcom2 upset be once during the described pixel cell 11 of one group of every scanning.
Fig. 6 is the sequential chart of common electric voltage in the display panels shown in Figure 5.As shown in Figure 6, the driving method of display panels 10 of the present invention, in the scan period of a frame, comply with the line scanning of advancing from the first row pixel cell 11, the described pixel cell 11 that the described first public electrode wire 13a and the described second public electrode wire 13b are respectively coupled provides common electric voltage, and every upset once, is converted to low-voltage or is high voltage by low voltage transition by high voltage.In the time of a frame, the number of times of the common electric voltage Vcom1 of the described first public electrode wire 13a and the described second public electrode wire 13b and Vcom2 upset is identical with the group number of the pixel cell that described display panels 10 has, so after the intact one group of pixel cell 11 of every scanning, Vcom1 and Vcom2 namely overturn once.
In conjunction with Fig. 5 and Fig. 6, from top to bottom, every capable pixel cell 11 is opened successively, other row pixel cells 11 were closed when certain row pixel cell 11 was opened, therefore in a frame time, the first common electric voltage Vcom1 and second common electric voltage Vcom2 upset are repeatedly, just carry out once inside out after the intact one group of pixel cell of every scanning, thereby the pixel cell 11 that each wait is opened waits for that the time of opening shortens greatly than prior art, be in the pixel cell of shutoff thereby shorten, because capacitance coupling effect causes memory capacitance C
STA terminal voltage that links to each other with the drain electrode of TFT is drawn high the time, and then reduces leaky, avoids the drift of gray scale voltage serious all the more, and then avoids whole liquid crystal panel 10 whiten from top to bottom, turn black, the be off color phenomenon of normal gradual change.
Further, the high voltage of the common electric voltage Vcom1 that the described first public electrode wire 13a provides is identical with the high voltage of the common electric voltage Vcom2 that the described second public electrode wire 13b provides, and the low-voltage of the common electric voltage Vcom1 that the first public electrode wire 13a provides is identical with the low-voltage of the common electric voltage Vcom2 that the described second public electrode wire 13b provides, make the high voltage of the common electric voltage that every capable pixel cell 11 can obtain in the display panels 10 identical with low-voltage, guarantee that display panels 10 normally shows.
Further, in the scan period of a frame, the number of times of the common electric voltage of the described first public electrode wire 13a or second public electrode wire 13b upset is the odd number more than or equal to 3.The upset number of times of the common electric voltage of the described first public electrode wire 13a and the second public electrode wire 13b is odd number, make in the time of next frame, the common electric voltage Vcom1 of the described first public electrode wire 13a is different with former frame, thereby make after each frame scan, opposite with the polarity of former frame with the polarity of delegation's pixel cell 11.
In one embodiment, the line number of every group of pixel cell that comprises 11 is identical, and namely to be N capable for the line number of the pixel cell 11 that comprises of described display panels, and described N is the integer more than or equal to 2.The line number of pixel cell 11 is identical in every group, then scanning not on the same group the required sweep time of pixel cell 11 identical; Corresponding in a frame time, the first public electrode wire 13a is also identical with the time of the each upset of the second public electrode wire 13b, therefore be convenient to the control to the first public electrode wire 13a and the second public electrode wire 13b, so make the circuit structure of the control first public electrode wire 13a and the public electrode wire output circuit of the second public electrode wire 13b relative simple, be easy to realize.What described N was preferable can be for more than or equal to 2 even number, and for example as shown in Figure 5, per 4 is one group.Employing even number bar is one group mode, can make the line number of the pixel cell 11 of the first public electrode wire 13a and second public electrode wire 13b control in each group identical, and then make the first public electrode wire 13a close with second public electrode wire 13b power supply power consumption, further make the circuit structure of the control first public electrode wire 13a and the public electrode wire output circuit of the second public electrode wire 13b relative simply, be easy to realize.
In addition, N also can be for more than or equal to 3 odd number, this structure is corresponding too, and the first public electrode wire 13a and the second public electrode wire 13b alternately provide the driving method of common electric voltage, the drift of can play the reduction leaky that can reach when above-mentioned N is even number, avoiding gray scale voltage serious all the more, and then avoid whole liquid crystal panel 10 whiten from top to bottom, turn black, the be off color effect of phenomenon of normal gradual change, so this structure is also within thought range of the present invention.
In another embodiment, the line number of every group of pixel cell that comprises 11 can also incomplete same or complete difference, Fig. 7 is the structural representation of display panels in one embodiment of the invention, and Fig. 8 is the sequential chart of common electric voltage in the display panels shown in Figure 7.As shown in Figure 7, first group comprises six row pixel cells, second group comprises 2 row pixel cells, the 3rd group comprises 4 row pixel cells, then as shown in Figure 8, the first public electrode wire 13a and the second public electrode wire 13b are in the sweep time of a frame, the time of each upset can specifically be controlled according to the line number of every group of pixel cell, that is, Fig. 8 comprises six row pixel cells for first group corresponding shown in Figure 7, and second group comprises 2 row pixel cells, the 3rd group comprises 4 row pixel cells, corresponding common electric voltage Vcom1 and Vcom2 overturn the time that the back continues at every turn, correspond to 6t respectively, 2t, 4t, wherein t can be the sweep time of every capable pixel cell.Particularly, can realize the monitoring of duration by for example in public electrode wire output circuit 16, increasing common circuit, method, means such as counter structure or other, thereby the line number that has realized every group of pixel cell that comprises 11 can be selected flexibly according to the structure of actual display panel, and public electrode wire output circuit 16 need not to increase the circuit of too much complexity, is easy to realize.
In sum, display panels of the present invention is one group with the continuous above pixel cell of two row successively, form many groups, and adopt first public electrode wire and second public electrode wire to provide common electric voltage for described pixel cell, wherein any adjacent two row pixel cells in each group are connected to described first public electrode wire and second public electrode wire respectively, last column pixel cell of last group is connected to same public electrode wire with the first row pixel cell of one group of back in adjacent two groups, in each frame time of scanning display panels, the common electric voltage upset of described first public electrode wire and described second public electrode wire once during the described pixel cell of one group of every scanning; Namely avoid the common electric voltage of every scanning one-row pixels unit first public electrode wire and described second public electrode wire all will overturn once, reduced the common electric voltage charging times, and then reduced the power consumption of liquid crystal indicator; And avoid in the time of a frame, pixel cell is waited for the overlong time of opening in the row of follow-up unlatching from top to bottom, reduce the generation of leaky, avoid the drift of gray scale voltage serious all the more, and then avoid whole liquid crystal panel occur whitening from top to bottom, turn black, the be off color phenomenon of normal gradual change.
Will be clear that, clearer for making by the improvement of the structure of the described display panels of invention, so omitted data line, gate line, gate line circuit and data line circuit etc. in Fig. 5 and Fig. 7, the implementation of elliptical structure can adopt as Fig. 1 or structure or other technical methods well-known to those skilled in the art shown in Figure 3, does not repeat them here; And the number of the pixel cell that display panels has is not limited to Fig. 5 and number shown in Figure 7, and its concrete number is determined according to actual process manufacturing and product demand.
In conjunction with Fig. 5～Fig. 8, the present invention also provides a kind of driving method of display panels, in the scan period of a frame, comply with the line scanning of advancing from the first row pixel cell 11, be connected to the described first public electrode wire 13a of public electrode wire output circuit 16 and described pixel cell 11 that the described second public electrode wire 13b is respectively coupled common electric voltage is provided, and every upset once, and the common electric voltage Vcom1 of the described first public electrode wire 13a and the described second public electrode wire 13b and Vcom2 are converted to low-voltage by high voltage respectively or are high voltage by low voltage transition.
As Fig. 6 and shown in Figure 8, the driving method of display panels 10 of the present invention, essence is in the scan period of a frame, comply with the line scanning of advancing from the first row pixel cell 11, the described pixel cell 11 that the described first public electrode wire 13a and the described second public electrode wire 13b are respectively coupled provides common electric voltage, and every upset once, is converted to low-voltage or is high voltage by low voltage transition by high voltage.In the time of a frame, the number of times of the common electric voltage Vcom1 of the described first public electrode wire 13a and the described second public electrode wire 13b and Vcom2 upset is identical with the group number of the pixel cell that described display panels 10 has, so after the intact one group of pixel cell 11 of every scanning, Vcom1 and Vcom2 namely overturn once.
Therefore, from top to bottom, every capable pixel cell 11 is opened successively, other row pixel cells 11 were closed when certain row pixel cell 11 was opened, therefore in a frame time, the first common electric voltage Vcom1 and second common electric voltage Vcom2 upset are repeatedly, just carry out once inside out after the intact one group of pixel cell of every scanning, thereby the pixel cell 11 that each wait is opened waits for that the time of opening shortens greatly than prior art, be in the pixel cell of shutoff thereby shorten, because capacitance coupling effect causes memory capacitance C
STTime that a terminal voltage that links to each other with the drain electrode of TFT is drawn high, and then alleviate leaky, avoid the serious all the more phenomenon of drift of gray scale voltage, and then avoid whole liquid crystal panel 10 whiten from top to bottom, turn black, the be off color phenomenon of normal gradual change.
Further, the high voltage of the common electric voltage Vcom1 that the described first public electrode wire 13a provides is identical with the high voltage of the common electric voltage Vcom2 that the described second public electrode wire 13b provides, and the low-voltage of the common electric voltage Vcom1 that the first public electrode wire 13a provides is identical with the low-voltage of the common electric voltage Vcom2 that the described second public electrode wire 13b provides, make the high voltage of the common electric voltage that every capable pixel cell 11 can obtain in the display panels 10 identical with low-voltage, guarantee that display panels 10 normally shows.
Further, in the scan period of a frame, the number of times of the common electric voltage of the described first public electrode wire 13a or second public electrode wire 13b upset is the odd number more than or equal to 3.The upset number of times of the common electric voltage of the described first public electrode wire 13a and the second public electrode wire 13b is odd number, make in the time of next frame, the common electric voltage Vcom1 of the described first public electrode wire 13a is different with former frame, thereby make after each frame scan, polarity with delegation's pixel cell 11 is opposite with the polarity of former frame, for example, described in Fig. 5 in the display panels pixel cell exemplarily be divided into three groups, then as Fig. 6, in the time of a frame, the number of times of the common electric voltage upset of the described first public electrode wire 13a and the second public electrode wire 13b namely is 3 times accordingly, and when next frame begins, the low level polarity of common electric voltage Vcom1 was opposite when the common electric voltage Vcom1 upset of the described first public electrode wire 13a began with its former frame for high level, and the polarity of the high level of common electric voltage Vcom2 was opposite when the common electric voltage Vcom2 upset of the described second public electrode wire 13b began with its former frame for low level.Thereby guarantee that when carrying out a new frame scan polarity of common electric voltage that offers every capable pixel cell is opposite at every turn.
Further, every group of pixel cell line number that comprises can be identical or different.
In one embodiment, the line number of every group of pixel cell that comprises 11 is identical, and namely to be N capable for the line number of the pixel cell 11 that comprises of described display panels, and described N is the integer more than or equal to 2.The line number of pixel cell 11 is identical in every group, then scanning not on the same group the required sweep time of pixel cell 11 identical; Corresponding in a frame time, the first public electrode wire 13a is also identical with the time of the each upset of the second public electrode wire 13b, therefore be convenient to the control to the first public electrode wire 13a and the second public electrode wire 13b, so make the circuit structure of the control first public electrode wire 13a and the public electrode wire output circuit of the second public electrode wire 13b relative simple, be easy to realize.What described N was preferable can be for more than or equal to 2 even number, and for example, as shown in Figure 5, per 4 is one group.Employing even number bar is one group mode, can make the line number of the pixel cell 11 of the first public electrode wire 13a and second public electrode wire 13b control in each group identical, and then make the first public electrode wire 13a close with second public electrode wire 13b power supply power consumption, further make the circuit structure of the control first public electrode wire 13a and the public electrode wire output circuit of the second public electrode wire 13b relative simply, be easy to realize.
In addition, N also can be for more than or equal to 3 odd number, this structure is corresponding too, and the first public electrode wire 13a and the second public electrode wire 13b alternately provide the driving method of common electric voltage, the drift of can play the reduction leaky that can reach when above-mentioned N is even number, avoiding gray scale voltage serious all the more, and then avoid whole liquid crystal panel 10 whiten from top to bottom, turn black, the be off color effect of phenomenon of normal gradual change, so this structure is also within thought range of the present invention.
In another embodiment, the line number of every group of pixel cell that comprises 11 can also incomplete same or complete difference, Fig. 7 is the structural representation of display panels in one embodiment of the invention, and Fig. 8 is the sequential chart of common electric voltage in the display panels shown in Figure 7.As shown in Figure 7, first group comprises 6 row pixel cells, and second group comprises 2 row pixel cells, and the 3rd group comprises 4 row pixel cells.When the line number difference of every group of pixel cell that comprises 11, the time of the each upset of the common electric voltage Vcom1 of the described first public electrode wire 13a and the described second public electrode wire 13b and Vcom2 is determined according to the line number of every group of pixel cell.Namely the first public electrode wire 13a and the second public electrode wire 13b are in the sweep time of a frame, the time of each upset can specifically be controlled according to the line number of every group of pixel cell, namely, Fig. 8 comprises 6 row pixel cells for first group corresponding shown in Figure 7, second group comprises 2 row pixel cells, and the 3rd group comprises 4 row pixel cells, and corresponding common electric voltage Vcom1 and Vcom2 overturn the time that the back continues at every turn, correspondence is set to 6t, 2t, 4t respectively, and wherein t can be the sweep time of every capable pixel cell.Particularly, can realize the monitoring of duration by for example in public electrode wire output circuit 16, increasing common circuit, method, means such as counter structure or other, thereby the upset that has realized public electrode can be selected flexibly according to the line number of every group of pixel cell that comprises 11, and public electrode wire output circuit 16 need not to increase the circuit of too much complexity, is easy to realize.
Though the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (15)
1. a display panels is characterized in that, described display panels comprises pixel cell, first public electrode wire and second public electrode wire of some arrayed, is one group with the continuous above pixel cell of two row successively, forms many groups; Wherein, any adjacent two row pixel cells in each group are connected to described first public electrode wire and second public electrode wire respectively, last column pixel cell of last group is connected to same public electrode wire with the first row pixel cell of one group of back in adjacent two groups, the common electric voltage upset cycle that described first public electrode wire and described second public electrode wire provide is identical and anti-phase each other, and during the described pixel cell of one group of every scanning described first public electrode wire and described second public electrode wire the common electric voltage upset once.
2. display panels as claimed in claim 1, it is characterized in that, the high voltage of the common electric voltage that first public electrode wire provides is identical with the high voltage of the common electric voltage that described second public electrode wire provides, and the low-voltage of the common electric voltage that provides of the low-voltage of the common electric voltage that provides of first public electrode wire and described second public electrode wire is identical.
3. display panels as claimed in claim 1 is characterized in that, in the scan period of a frame, the number of times of the common electric voltage of described first public electrode wire or second public electrode wire upset is the odd number more than or equal to 3.
4. display panels as claimed in claim 1 is characterized in that, the incomplete same or complete difference of the line number of every group of pixel cell that comprises.
5. display panels as claimed in claim 1 is characterized in that, it is capable that the line number of the pixel cell that described display panels comprises is N, and described N is the integer more than or equal to 2.
6. display panels as claimed in claim 5 is characterized in that, described N is the even number more than or equal to 2.
7. display panels as claimed in claim 5 is characterized in that, described N is the odd number more than or equal to 3.
8. the driving method of a display panels as claimed in claim 1, it is characterized in that, in the scan period of a frame, comply with the line scanning of advancing from the first row pixel cell, the described pixel cell that described first public electrode wire and described second public electrode wire are respectively coupled provides common electric voltage, and every upset once, is converted to low-voltage or is high voltage by low voltage transition by high voltage.
9. the driving method of display panels as claimed in claim 8, it is characterized in that, the high voltage of the common electric voltage that first public electrode wire provides is identical with the high voltage of the common electric voltage that described second public electrode wire provides, and the low-voltage of the common electric voltage that provides of the low-voltage of the common electric voltage that provides of first public electrode wire and described second public electrode wire is identical.
10. the driving method of display panels as claimed in claim 8 is characterized in that, in the scan period of a frame, the number of times of the common electric voltage of described first public electrode wire or second public electrode wire upset is the odd number more than or equal to 3.
11. the driving method of display panels as claimed in claim 8 is characterized in that, every group of pixel cell line number that comprises is identical or different.
12. the driving method of display panels as claimed in claim 11 is characterized in that, it is capable that the line number of the pixel cell that described display panels comprises is N, and described N is the integer more than or equal to 2.
13. the driving method of display panels as claimed in claim 12 is characterized in that, described N is the even number more than or equal to 2.
14. the driving method of display panels as claimed in claim 12 is characterized in that, described N is the odd number more than or equal to 3.
15. the driving method of display panels as claimed in claim 11, it is characterized in that, every group of pixel cell line number difference that comprises, the time of the each upset of the common electric voltage of described first public electrode wire and described second public electrode wire is determined according to the line number of every group of pixel cell.
Priority Applications (1)
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| CN108922467A (en) * | 2018-06-26 | 2018-11-30 | 惠科股份有限公司 | Pixel circuit and display panel |
| CN109616075A (en) * | 2019-01-30 | 2019-04-12 | 惠科股份有限公司 | Driving method, device, equipment and the storage medium of display panel |
| CN113393790A (en) * | 2021-05-20 | 2021-09-14 | 北海惠科光电技术有限公司 | Display panel driving method and device and display device |
| CN116704970A (en) * | 2023-08-04 | 2023-09-05 | 南京芯视元电子有限公司 | Correction system and method for display signal processing |
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| CN113393790A (en) * | 2021-05-20 | 2021-09-14 | 北海惠科光电技术有限公司 | Display panel driving method and device and display device |
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| CN116704970B (en) * | 2023-08-04 | 2023-10-24 | 南京芯视元电子有限公司 | Correction system and method for display signal processing |
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