CN104123906A - Display panel and driving method thereof - Google Patents
Display panel and driving method thereof Download PDFInfo
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- CN104123906A CN104123906A CN201410365782.9A CN201410365782A CN104123906A CN 104123906 A CN104123906 A CN 104123906A CN 201410365782 A CN201410365782 A CN 201410365782A CN 104123906 A CN104123906 A CN 104123906A
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Abstract
Disclosed are a display panel and a driving method thereof. The display panel comprises a plurality of sub-pixel areas and a plurality of sub-grid driving circuits. Every sub-pixel area is driven by the corresponding sub-grid driving circuit; every sub-grid driving circuit comprises at least one initial scanning signal end. The driving method comprises dividing the display panel into the plurality of sub-pixel areas, and determining whether every sub-pixel area corresponds to a static image or a dynamic image; when the sub-pixel area corresponds to the dynamic image, driving the sub-pixel area in a dynamic driving mode; when the sub-pixel area corresponds to the static image, driving the sub-pixel area in a static driving mode. The display panel and the driving method thereof can reduce driving power consumption.
Description
Technical field
The present invention relates to photoelectron and show field, relate in particular to a kind of display panel and driving method thereof.
Background technology
Display panel finds application on many electronic products.At present, no matter be display panels, organic electroluminescence display panel or electronic paper display panel, adopt the type of drive of active matrix to drive more.Accordingly, the display panel of employing active matrix need to mate the driving circuit of active matrix.In described driving circuit, generally include gate driver circuit.
In the prior art, display panel comprises a plurality of pixel electrodes, many gate lines, many data lines and a plurality of switching device, the pixel electrode that is positioned at same a line is connected to a gate line by switching device separately, and the pixel electrode that is positioned at same row is connected to a data line by switching device separately.When display frame, by gate driver circuit, to gate line, provide driving signal, the switching device of certain a line of data to be entered is opened, then by data line, picture signal is imported in pixel electrode.
Conventional gate driver circuit generally includes a plurality of driver elements, each drive unit drives one-row pixels electrode.Previous driver element is a rear driver element transmission of signal, transmits successively, until last driver element, whole gate driver circuit drives line by line to whole pixel electrode array.Gate driver circuit also comprises a starting symbol end, and starting symbol end is electrically connected to first driver element, for the initial driving signal of each picture is provided.
Adopt existing gate driver circuit, no matter whether picture signal changes, and all must carry out sequential scanning to each pixel electrode, thereby has caused the problem that driving power consumption is high.
Summary of the invention
In view of this, one aspect of the present invention provides a kind of display panel, described display panel comprises a plurality of subpixel area and a plurality of sub-gate driver circuit, described in each, subpixel area is driven by a corresponding described sub-gate driver circuit, and described in each, sub-gate driver circuit comprises at least one initial sweep signal end.
Another aspect of the present invention also provides a kind of driving method of display panel, and described driving method is first divided into a plurality of subpixel area by described display panel, then judge subpixel area described in each corresponding be tableaux or dynamic menu; When described subpixel area corresponding be dynamic menu time, adopt subpixel area described in dynamic driving mode activated; When described subpixel area corresponding be tableaux time, adopt subpixel area described in static drive mode activated.
Compared with prior art, in of the present invention provided technical scheme, display panel is divided into a plurality of subpixel area, each subpixel area can be different according to its corresponding display frame, and adopt different drive patterns, not only improve drive efficiency, and can reduce driving power consumption.
Accompanying drawing explanation
Fig. 1 is the display panel schematic diagram that the embodiment of the present invention provides;
Fig. 2 is the driving method schematic flow sheet of the display panel that provides of the embodiment of the present invention;
Fig. 3 is the display panel schematic diagram that another embodiment of the present invention provides;
Fig. 4 is the corresponding sequential chart that shows whole frame dynamic menu of driving method that display panel shown in Fig. 3 adopts;
Fig. 5 is the sequential chart of the corresponding display section of the driving method tableaux of the employing of display panel shown in Fig. 3;
Fig. 6 is the display panel schematic diagram that further embodiment of this invention provides;
Fig. 7 is the display panel schematic diagram that yet another embodiment of the invention provides;
Fig. 8 is the display panel schematic diagram that yet another embodiment of the invention provides.
Embodiment
In existing display panel, need carry out order to each pixel electrode and drive, thereby make the driving power consumption of display panel all higher.And, in display panel procedure for displaying, often there is such demonstration situation: in whole pixel region, except small part region shows dynamic menu, what most of region showed is not have vicissitudinous tableaux (or picture).Because existing display panel is to showing the region of dynamic menu and showing that the region of tableaux is distinguished, and all adopt drive pattern of the same race (being generally dynamic driving pattern) to drive.Visible, existing method adopts single drive pattern, causes increasing driving power consumption meaninglessly.
In order to prevent the generation of above-mentioned situation, the invention provides a kind of new display panel, described display panel comprises a plurality of subpixel area, and each subpixel area adopts different drive patterns according to the difference of the picture of its corresponding demonstration, thereby reduces driving power consumption.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
Please refer to Fig. 1, the embodiment of the present invention provides a kind of display panel 10.
Display panel 10 comprises a plurality of subpixel area and a plurality of sub-gate driver circuit, and described in each, subpixel area is driven by a corresponding described sub-gate driver circuit.In Fig. 1, shown one of them subpixel area 11, and the suspension points of subpixel area 11 belows represents that display panel 10 can comprise more subpixel area.Subpixel area 11 is electrically connected to grid driving circuit 12, and subpixel area 11 is driven by sub-gate driver circuit 12.In more subpixel area of suspension points representative, each subpixel area is also corresponding separately to be driven by a sub-gate driver circuit.
Please continue to refer to Fig. 1, sub-gate driver circuit 12 is positioned at one of them side of corresponding subpixel area 11, as shown in Fig. 1, sub-gate driver circuit 12 is positioned at the limit, left side of corresponding subpixel area 11 (can be also right edge in other embodiments), and sub-gate driver circuit 12 comprises the signal wire 13 of at least one initial sweep signal end STV1 and the initial sweep signal end STV1 of electrical connection, and sub-gate driver circuit 12 is electrically connected to control chip (not shown) by initial sweep signal end STV1.
Please continue to refer to Fig. 1, in each subpixel area of display panel 10, include many data lines 14 that extend along first direction and many gate lines 15 that extend along second direction (in certain embodiments, some subpixel area also can only comprise a gate line), data line 14 and gate line 15 intersect a plurality of electrode zones of formation (mark), in each electrode zone, there is a thin film transistor (TFT) 16 (TFT) and a pixel electrode 17, pixel electrode 17 is electrically connected to the source electrode (or drain electrode) of thin film transistor (TFT) 16, and pixel electrode 17 is electrically connected to gate line 15 by the grid of thin film transistor (TFT) 16, simultaneously, each gate line 15 that sub-gate driver circuit 12 is electrically connected in subpixel area 11.
In the display panel 10 that the present embodiment provides, because display panel 10 comprises a plurality of subpixel area, and each subpixel area drives separately by a sub-gate driver circuit, therefore, can be different according to the corresponding display frame of each subpixel area, and adopt different drive patterns.Than existing single drive pattern, display panel 10 can improve drive efficiency on the one hand, can also reduce driving power consumption on the other hand.
Aspect display panel 10 minimizing driving power consumption, this instructions is described further below in conjunction with the driving method of display panel.
Please refer to Fig. 2, the embodiment of the present invention provides a kind of driving method of display panel, the display panel 10 that wherein said display panel can provide for previous embodiment, and its concrete structure can be with reference to previous embodiment corresponding contents.Described driving method comprises:
Step S10, judge subpixel area described in each corresponding be tableaux or dynamic menu.Concrete judgment mode can be, in advance to being about to be sent to the picture signal of certain subpixel area and the picture signal of the current reception of this subpixel area contrasts, if changed between two picture signals, what can judge described subpixel area corresponding (demonstration) is tableaux, if do not changed between two picture signals, can judge described subpixel area corresponding be tableaux.
When described subpixel area corresponding be dynamic menu time, enter step S11, adopt subpixel area described in dynamic driving mode activated.Dynamic driving pattern is specifically as follows, and for example, by the pixel electrode in certain frequency (60HZ) driven element pixel region, thereby makes whole subpixel area refresh picture by certain frequency, reaches the effect that shows dynamic menu.
When described subpixel area corresponding be tableaux time, enter step S12, adopt subpixel area described in static drive mode activated.Static drive pattern can be by necessarily adjusting and obtain above-mentioned dynamic driving pattern.For example, when dynamic driving pattern is the pixel electrode driving in corresponding sub-pixel region for M time by certain frequency, the pixel electrode that static drive pattern can drive in corresponding sub-pixel region for N time of only selecting in M time, (M-N) in M time inferior stops driving the pixel electrode in corresponding sub-pixel region, thereby make whole subpixel area refresh picture by a kind of special lower frequency, reach the effect that reduces power consumption when showing tableaux.
From foregoing description, in the present embodiment, the driving power consumption of static drive pattern is less than the driving power consumption of dynamic driving pattern, and the driving power consumption of dynamic driving pattern can equal the driving power consumption of existing drive pattern substantially.Therefore the driving method that, the present embodiment provides can reach the effect of saving driving power consumption.That is to say, in the driving method of the display panel providing due to the present embodiment, subpixel area corresponding to dynamic menu can adopt static drive pattern to drive, and the driving power consumption of described static drive pattern is less than the driving power consumption of dynamic driving pattern, therefore the driving method that, the present embodiment provides can reach the effect of saving driving power consumption.
Display panel provided by the present invention has a plurality of subpixel area, and described a plurality of subpixel area can have multiple dividing mode, and the present invention following several embodiment further provide several frequently seen dividing mode.
Please refer to Fig. 3, the embodiment of the present invention provides a kind of display panel 100.At least one subpixel area in display panel 100 be take the pixel electrode of full line and pixel region is divided as unit, and adopts the wherein mode of a side that whole gate driver circuits is arranged on (comprising a plurality of sub-gate driver circuits) to whole pixel region (comprising a plurality of subpixel area).
Concrete, display panel 100 comprises a plurality of shift registers 102, many gate lines 103.Display panel 100 also comprises six subpixel area, be respectively subpixel area 110, subpixel area 120, subpixel area 130, subpixel area 140, subpixel area 150 and subpixel area 160, six subpixel area form complete pixel region, for the demonstration of 100 pairs of pictures of display panel.
It should be noted that, in other embodiments of the invention, the number of subpixel area is at least one, and can combine with other dividing mode, the number of concrete subpixel area can be selected according to gate driver circuit space, and the present invention is not construed as limiting this.
Please continue to refer to Fig. 3, the corresponding sub-gate driver circuit of each subpixel area (not mark), a sub-gate driver circuit drives a subpixel area, and each sub-gate driver circuit forms complete gate driver circuit.Described sub-gate driver circuit can comprise a shift register 102, also can comprise a plurality of shift registers 102 that connect step by step.For example, first to fourth shift register 102 that comprises the top shown in Fig. 3 for the sub-gate driver circuit of driven element pixel region 110.Each shift register 102 is electrically connected to a gate line 103.The tft array (not shown) that gate line 103 is electrically connected in pixel region.
In the present embodiment, the gate driver circuit of display panel 100 adopts shift register 102, makes corresponding control chip not need to export a large amount of gate control lines, has saved the wiring space of a large amount of gate control lines.
Please continue to refer to Fig. 3, every sub-gate driver circuit comprises an initial sweep signal end.Six initial sweep signal ends of six subpixel area in Fig. 3, have been demonstrated, be respectively initial sweep signal end STV11, initial sweep signal end STV12, initial sweep signal end STV13, initial sweep signal end STV14, initial sweep signal end STV15 and initial sweep signal end STV16, first shift register 102 that each initial sweep signal end is electrically connected in corresponding subpixel area by signal wire 101.
In the present embodiment, the shift signal output terminal of last subpixel area and the shift signal input end of a rear subpixel area are set and disconnect, thereby make the initial sweep signal between each subpixel area separate.The initial sweep signal of each subpixel area (STV signal) is all independent of control chip (IC, not shown) provide, and be sent to each subpixel area by each initial sweep signal end, therefore, different subpixel region can adopt different drive patterns.
Please continue to refer to Fig. 3, subpixel area 110, subpixel area 120, subpixel area 130, subpixel area 140 and subpixel area 150 include the pixel electrode (not shown) of four lines full line, and subpixel area 160 comprises the pixel electrode (not shown) of a line full line.A gate line 103 of the common connection of pixel electrode of every row full line, described in each, sub-gate driver circuit is positioned at one of them side (being limit, left side shown in Fig. 3) of corresponding subpixel area 110, and described sub-gate driver circuit is electrically connected to each gate line 103 in corresponding subpixel area 110.In other words, in each subpixel area, same one end of each gate line 103 is electrically connected to sub-gate driver circuit, article one, one end of gate line 103 is electrically connected to a shift register 102, and all gate line 103 is electrically connected to shift register 102 by same one end (being gate line 103 left ends shown in Fig. 3).
It should be noted that, in other embodiments of the invention, only need at least one subpixel area to comprise the pixel electrode of multirow full line, other subpixel area can only comprise the pixel electrode of a line full line.Certainly, can be also the pixel electrode that each subpixel area comprises multirow full line, and the line number of the pixel electrode that comprises of each subpixel area can be the same or different, the present invention is not construed as limiting this.See from the side, the present invention is applicable to the display panel of high-res.
It should be noted that, in the present embodiment, each subpixel area can independently scan, and the direction of scanning of each subpixel area inside can each self-retaining, therefore can omit U2D in existing display panel 100 (up to down) and two lines of D2U (down to up), also can omit with the corresponding load module circuit of these two lines, thereby save the shared space of gate driver circuit in display panel 100 simultaneously.
Please continue to refer to Fig. 3, the display panel 100 that the present embodiment provides can also comprise judge module 104, judge module 104 is for judging that display frame corresponding to subpixel area is dynamic menu or tableaux, and makes sub-gate driver circuit corresponding to subpixel area enter dynamic driving pattern or static drive pattern according to judged result.In Fig. 3, only show, but judge module 104 is electrically connected to signal wire 101 by wire (not mark), thereby judge module 104 is electrically connected to initial sweep signal end STV11, but in fact, each initial sweep signal end all can be electrically connected to judge module 104, thereby guarantee by display frame corresponding to judge module 104 each subpixel area of judgement, is dynamic menu or tableaux.
In the present embodiment, when the concrete picture of certain frame, judge module 104 can judge whether the picture in these six subpixel area has dynamic change (whether being dynamic menu), if there is dynamic change (being dynamic menu), corresponding sub-gate driver circuit sends initial sweep signal to corresponding subpixel area, to scan.If there is no dynamic change (being tableaux), can select not carry out scanning.But certainly, when certain subpixel area is during in a long time all in tableaux, corresponding sub-gate driver circuit still sends corresponding static scanning signal to carry out refresh scan by certain cycle, thereby prevent that the problems such as flicker from appearring in display panel 100, the image quality that simultaneously guarantees display frame each several part keeps identical, makes visual effect unaffected.
Though do not show in figure, but the display panel 100 that the present embodiment provides can also comprise dynamic driving pattern and static drive pattern.Dynamic driving pattern sends a signal to corresponding sub-gate driver circuit with first frequency, static drive pattern is at the M with first frequency transmitted signal in the cycle, only select N the cycle wherein to send a signal to corresponding sub-gate driver circuit, in (M-N) individual cycle, stop sending a signal to corresponding sub-gate driver circuit, M and N positive integer comparatively wherein, and M is greater than N.
Concrete, for certain subpixel area, when its corresponding tableaux, static drive module can be in every two normal display cycles, select wherein first display cycle, make corresponding sub-gate driver circuit send a signal to this subpixel area, and select wherein second display cycle, make corresponding sub-gate driver circuit stop sending a signal to this subpixel area.
In the display panel 100 that the present embodiment provides, comprise a plurality of subpixel area, described in each, subpixel area is driven by sub-gate driver circuit, described in each, sub-gate driver circuit comprises at least one initial sweep signal end, therefore each subpixel area can drive independently, when the corresponding tableaux of subpixel area, can select static drive pattern to drive it, thereby save driving power consumption.
The embodiment of the present invention also provides a kind of driving method of display panel, and the display panel 100 that the applicable previous embodiment of described driving method provides, specifically describes with display panel 100.
Display panel 100 is divided into six subpixel area by pixel region.Described driving method comprises: judge each subpixel area corresponding be tableaux or dynamic menu; When subpixel area corresponding be dynamic menu time, adopt subpixel area described in dynamic driving mode activated; When subpixel area corresponding be tableaux time, adopt subpixel area described in static drive mode activated.
In the present embodiment, dynamic driving pattern is specifically as follows: every through a period 1, send single pass signal to described subpixel area.Static drive pattern is specifically as follows: often stop sending sweep signal to after corresponding sub-gate driver circuit through a period 1, in the subsequent period 1, send single pass signal to corresponding sub-gate driver circuit.
In the present embodiment, when stopping sending sweep signal to corresponding sub-gate driver circuit, stop sending picture signal to subpixel area simultaneously, thereby further save driving power consumption.
In the present embodiment, whole subpixel area complete and once drive is a display cycle, and in each display cycle, each subpixel area drives one by one.
In the present embodiment, because display panel 100 has six subpixel area, therefore every frame picture can comprise six initial sweep signals, and six initial sweep signals are all independent.That is to say, for certain subpixel area, both can keep low (zero) level (stopping receiving sweep signal) in a frame picture the inside, also can receive high (pulse) level (reception sweep signal) in corresponding reference position, specifically, according to the decision that whether changes of the relative former frame picture of its corresponding picture, below will do further to analyze.
Incorporated by reference to reference to figure 3 and Fig. 4, when each subpixel area corresponding be all dynamic menu time, each sub-gate driver circuit is dynamic driving pattern, now, all sub-gate driver circuit corresponding to subpixel area enters dynamic driving pattern, six initial sweep signals (6 pulse voltage square waves shown in Fig. 4) are sent to initial sweep signal end STV11 from control chip respectively, initial sweep signal end STV12, initial sweep signal end STV13, initial sweep signal end STV14, initial sweep signal end STV15 and initial sweep signal end STV16, and then enter each sub-gate driver circuit.
As can see from Figure 4, initial sweep signal end STV11 receives initial sweep signal (initial sweep signal is as shown in the pulse voltage square wave in Fig. 4) to scan, then initial sweep signal end STV12 receives initial sweep signal to scan, in order until initial sweep signal end STV16 receives initial sweep signal to scan, until the whole display cycle finishes.(in fact, initial sweep signal also needs to carry out with vertical clock signal the coupling of logical “and”, just finally forms sweep signal, gives tacit consent to vertical clock signal and synchronize with initial sweep signal in the present embodiment.)
Yet, in the display panel course of work, be more such working condition: in whole pixel region, except small part region shows dynamic menu, what most of region showed is not have vicissitudinous tableaux.Below with only subpixel area 140 and the corresponding dynamic menu of subpixel area 150, and the equal corresponding dynamic menu of subpixel area 110, subpixel area 120, subpixel area 130 and subpixel area 160 is that example describes.
Incorporated by reference to reference to figure 3 and Fig. 5, when subpixel area 140 and subpixel area 150 corresponding dynamic menu, and when subpixel area 140 and subpixel area 150 are dynamic driving pattern, the sub-gate driver circuit of subpixel area 140 and subpixel area 150 correspondences enters dynamic driving pattern, therefore initial sweep signal end STV14 and initial sweep signal end STV15 still receive initial sweep signal to scan, and initial sweep signal end STV11, initial sweep signal end STV12, initial sweep signal end STV13 and initial sweep signal end STV16 are because the judge module signal in control chip sends initial sweep signal, therefore, in this frame picture, corresponding subpixel area 110, subpixel area 120, subpixel area 130 and subpixel area 160 do not scan, but in the next display cycle, receive again the line scanning of going forward side by side of initial sweep signal.
It should be noted that, in other embodiments of the invention, described static drive pattern can be: every K period 1 stops sending sweep signal to described subpixel area, follow-up L is in the period 1, often sends a sweep signal to described subpixel area through a period 1.In further embodiments, described static drive pattern can be also: X period 1, select any Y the period 1 wherein, often send single pass signal to described subpixel area through described period 1, in other period 1, stop sending sweep signal to described subpixel area, wherein X and Y are positive integer, and Y is less than X.
In the present embodiment, the period 1 can be the display cycle, and the duration of period 1 and display cycle can be all 13.33ms～18.18ms, and the display frequency that now display panel is corresponding is 55Hz～75Hz.Concrete, the duration of period 1 can be 16.67ms, display frequency is now 60Hz.
Please refer to Fig. 6, further embodiment of this invention provides a kind of display panel 200.Wherein, it is unit that display panel 200 at least one subpixel area be take the pixel electrode of full line, pixel region is divided, but display panel 200 adopts the mode that grid driving circuit is arranged on simultaneously to the relative dual-side of pixel region.
Display panel 200 comprises pixel region (mark), many gate lines 203, a plurality of shift register 202, and every row pixel connects a gate line 203.The described pixel region of display panel 200 is divided into six subpixel area, is respectively subpixel area 210, subpixel area 220, subpixel area 230, subpixel area 240, subpixel area 250 and subpixel area 260.
Please continue to refer to Fig. 6, the corresponding sub-gate driver circuit of each subpixel area (not mark), a sub-gate driver circuit drives a subpixel area.And in the present embodiment, a sub-gate driver circuit comprises the first sub-gate driver circuit (not mark) and the second sub-gate driver circuit (not mark).The first sub-gate driver circuit and the second sub-gate driver circuit lay respectively at two relative sides of corresponding subpixel area (for example, in Fig. 6, the limit, left side of subpixel area 210 has the first sub-gate driver circuit, and the right edge of subpixel area 210 has the second sub-gate driver circuit).And the first sub-gate driver circuit is electrically connected to the described gate line 203 that is positioned at even number line in the corresponding described subpixel area of the sub-gate driver circuit electrical connection of described gate line 203, the second that is positioned at odd-numbered line in corresponding described subpixel area.
It should be noted that, for this situation that only comprises the pixel electrode of a line full line of subpixel area 260, its corresponding sub-gate driver circuit can only comprise one of them of the first sub-gate driver circuit and the second sub-gate driver circuit.
Please continue to refer to Fig. 6, each subpixel area comprises the pixel electrode (not shown) of multirow full line, a gate line 203 of the common connection of pixel electrode of every row full line, described the first sub-gate driver circuit and the second sub-gate driver circuit can comprise a shift register 202, also can comprise a plurality of shift registers 202 (only transposition of partial register is marked in Fig. 6, but be to be understood that Fig. 6 comprises two column shift registers that are positioned at limit, the pixel region left and right sides) that connect step by step.For example, in Fig. 6, for the first sub-gate driver circuit of driven element pixel region 210, comprise shift register 202a and shift register 202c, for the second sub-gate driver circuit of driven element pixel region 210, comprise shift register 202b and shift register 202d.
As noted earlier, sub-gate driver circuit is electrically connected to each gate line 203 in described subpixel area, concrete, and each shift register 202 is electrically connected to a gate line 203.Described in each in subpixel area, the first end that is arranged in the gate line 203 of odd-numbered line is electrically connected to the shift register 202 of described the first sub-gate driver circuit, and the second end that is arranged in the gate line 203 of even number line is electrically connected to the shift register 202 of described the second sub-gate driver circuit.
Please continue to refer to Fig. 6, every sub-gate driver circuit comprises two initial sweep signal ends.12 initial sweep signal ends of 12 subpixel area in Fig. 6, have been demonstrated, be respectively the initial sweep signal end STV21 and the initial sweep signal end STV21 ' that are electrically connected to subpixel area 210, be electrically connected to initial sweep signal end STV22 and the initial sweep signal end STV22 ' of subpixel area 220, be electrically connected to initial sweep signal end STV23 and the initial sweep signal end STV23 ' of subpixel area 230, be electrically connected to initial sweep signal end STV24 and the initial sweep signal end STV24 ' of subpixel area 240, be electrically connected to initial sweep signal end STV25 and the initial sweep signal end STV25 ' of subpixel area 250, and the initial sweep signal end STV26 and the initial sweep signal end STV26 ' that are electrically connected to subpixel area 260.Each initial sweep signal end is electrically connected to first shift register 202 of the first sub-gate driver circuit and first shift register 202 of the second sub-gate driver circuit by signal wire 201, as initial sweep signal end STV21 connects shift register 202a, initial sweep signal end STV21 ' connects shift register 202b.
In the present embodiment, the shift signal output terminal of last subpixel area and the shift signal input end of a rear subpixel area are set and disconnect, thereby make the initial sweep signal between each subpixel area separate.The initial sweep signal of each subpixel area is all independent to be provided by control chip (IC), and is sent to each subpixel area by each initial sweep signal end, and therefore, different subpixel region can adopt different drive patterns.
Please continue to refer to Fig. 6, subpixel area 210, subpixel area 220, subpixel area 230, subpixel area 240 and subpixel area 250 include the pixel electrode (not shown) of four lines full line, and subpixel area 260 comprises the pixel electrode of a line full line.A gate line 203 of the common connection of pixel electrode of every row full line, in each subpixel area, the same one end that is positioned at each gate line 203 of odd-numbered line is electrically connected to the first sub-gate driver circuit, the same one end that is positioned at each gate line 203 of even number line is electrically connected to the second sub-gate driver circuit, and one end of a gate line 203 is electrically connected to a shift register 202.
Though do not show in figure, but the display panel 200 that the present embodiment provides can also comprise judge module, judge module is used for judging that display frame corresponding to subpixel area is dynamic menu or tableaux, and makes sub-gate driver circuit corresponding to subpixel area enter dynamic driving pattern or static drive pattern according to judged result.
In the present embodiment, when the concrete picture of certain frame, described judge module can judge whether the picture in these six subpixel area has dynamic change (whether being dynamic menu), if there is dynamic change (being dynamic menu), corresponding sub-gate driver circuit (comprising the first sub-gate driver circuit and the second sub-gate driver circuit) sends initial sweep signal to corresponding subpixel area, to scan.If there is no dynamic change (being tableaux), can select not carry out scanning.But certainly, when certain subpixel area is during in a long time all in tableaux, corresponding sub-gate driver circuit still sends corresponding static scanning signal to carry out refresh scan by certain cycle, thereby prevent that the problems such as flicker from appearring in display panel 200, the image quality that simultaneously guarantees display frame each several part keeps identical, makes visual effect unaffected.
The display panel 200 that the present embodiment provides can adopt dynamic driving pattern or static drive pattern to scan each subpixel area, during dynamic driving pattern, corresponding sub-gate driver circuit sends a signal to corresponding subpixel area with first frequency, during static drive pattern, corresponding sub-gate driver circuit is at the M with first frequency transmitted signal in the cycle, only select N the cycle wherein to send a signal to corresponding subpixel area, in (M-N) individual cycle, stop sending a signal to corresponding subpixel area, M and N positive integer comparatively wherein, and M is greater than N.
Concrete, for certain subpixel area, when its corresponding tableaux, static drive pattern can be in every two normal display cycles, select wherein first display cycle, make corresponding sub-gate driver circuit send a signal to this subpixel area, and select wherein second display cycle, make corresponding sub-gate driver circuit stop sending a signal to this subpixel area.
In the display panel 200 that the present embodiment provides, comprise a plurality of subpixel area, described in each, subpixel area is driven by sub-gate driver circuit, described in each, sub-gate driver circuit comprises at least one initial sweep signal end, therefore each subpixel area can drive independently, when the corresponding tableaux of subpixel area, can select static drive pattern to be described, thereby save driving power consumption.
Further embodiment of this invention also provides a kind of driving method of display panel, and the display panel 200 that the applicable previous embodiment of described driving method provides, specifically describes with display panel 200.
Display panel 200 is divided into six subpixel area by pixel region.Described driving method comprises: judge each subpixel area corresponding be tableaux or dynamic menu; When subpixel area corresponding be dynamic menu time, adopt subpixel area described in dynamic driving mode activated; When subpixel area corresponding be tableaux time, adopt subpixel area described in static drive mode activated.
In the present embodiment, dynamic driving pattern is specifically as follows: every through a period 1, chip sends single pass signal to corresponding sub-gate driver circuit (comprising the first sub-gate driver circuit and the second sub-gate driver circuit), and by described sub-gate driver circuit, sweep signal is sent to corresponding subpixel area.Static drive pattern is specifically as follows: often stop sending sweep signal to after corresponding sub-gate driver circuit through a period 1, in the subsequent period 1, send single pass signal to corresponding sub-gate driver circuit, and by described sub-gate driver circuit, sweep signal is sent to corresponding subpixel area.
Concrete, take subpixel area 210 as example, the corresponding sub-gate driver circuit of subpixel area 210 comprises the first sub-gate driver circuit and the second sub-gate driver circuit.The first sub-gate driver circuit is positioned at the limit, left side of subpixel area 210, and the second sub-gate driver circuit is positioned at the right edge of subpixel area 210.The first sub-gate driver circuit is electrically connected to the gate line 203 that is positioned at even number line in the sub-gate driver circuit electrical connection of gate line 203, the second subpixel area 210 that is positioned at odd-numbered line in subpixel area 210.Initial sweep signal end STV21 connects shift register 202a, and initial sweep signal end STV21 ' connects shift register 202b.
Therefore, dynamic driving pattern comprises: chip sends the sub-gate driver circuit of single pass signal to the first and the second sub-gate driver circuit, every through a period 1, by the first sub-gate driver circuit, sweep signal is sent to shift register 202a, and behind very first time interval, by the second sub-gate driver circuit, sweep signal is sent to shift register 202b, described very first time interval can be the required time of a gate line 203 of one scan.
Static schema comprises: often through a period 1 chip, stop sending sweep signal to after corresponding sub-gate driver circuit, in the subsequent period 1, chip sends to shift register 202a by the first sub-gate driver circuit by sweep signal, and behind very first time interval, chip sends to shift register 202b by the second sub-gate driver circuit by sweep signal, and described very first time interval can be the required time of a gate line 203 of one scan.
In the present embodiment, when stopping sending sweep signal to corresponding sub-gate driver circuit, stop sending picture signal to subpixel area simultaneously, thereby further save driving power consumption.
In the present embodiment, whole subpixel area complete and once drive is a display cycle, and in each display cycle, each subpixel area drives one by one.
Please refer to Fig. 7, yet another embodiment of the invention provides pixel electrode that at least one subpixel area in a kind of display panel 300 take non-full line (hemistich) pixel region to be divided as unit, and adopts the mode that grid driving circuit is arranged on to the dual-side that whole pixel region is relative.But for each subpixel area, its corresponding sub-gate driver circuit is only arranged on one of them side of subpixel area, and described sub-gate driver circuit is electrically connected to the gate line 303 in corresponding described subpixel area.
Please continue to refer to Fig. 7, display panel 300 comprises pixel region (not mark), a plurality of shift registers 302 and many gate lines 303.The pixel region of display panel 300 is divided into 12 subpixel area, be respectively the subpixel area 310 that is positioned at the left one side of something of whole pixel region, subpixel area 320, subpixel area 330, subpixel area 340, subpixel area 350 and subpixel area 360, and the subpixel area 310 ' that is positioned at the right one side of something of whole pixel region, subpixel area 320 ', subpixel area 330 ', subpixel area 340 ', subpixel area 350 ' and subpixel area 360 ', whole 12 subpixel area form complete described pixel region, for the demonstration of display panel to picture.
Please continue to refer to Fig. 7, the corresponding sub-gate driver circuit of each subpixel area (not mark), a sub-gate driver circuit drives a subpixel area.Described sub-gate driver circuit can comprise a shift register 302, also can comprise a plurality of shift registers 302 that connect step by step.For example, in Fig. 7, for the sub-gate driver circuit of driven element pixel region 310 comprise be positioned at the top, pixel region left side first to the 4th shift register 302, for the sub-gate driver circuit of driven element pixel region 310 ' comprise be positioned at the top, pixel region right side first to the 4th shift register 302.
In the present embodiment, each subpixel area comprises the pixel electrode (not shown) of the non-full line of multirow, and the pixel electrode of described non-full line is hemistich pixel electrode.Be in the present embodiment, the pixel electrode of a line full line is divided into two, the hemistich pixel electrode that is positioned at the left side is positioned at one of them subpixel area, and the hemistich pixel electrode that is positioned at the right is positioned at one of them subpixel area.
It should be noted that, in other embodiments of the invention, a line entire row of pixels electrode can be divided into from centre equal two parts, and can be divided into the arbitrarily two parts of (size), only need to guarantee between the pixel electrode of each part adjacent between two.
In the present embodiment, the line number that is positioned at the incomplete row pixel electrode that shown in Fig. 6, in plane, two of the left and right subpixel area of same level position comprises equates.But in other embodiments of the invention, the line number of the incomplete row pixel electrode that each subpixel area comprises also can be unequal.
As noted earlier, described sub-gate driver circuit is electrically connected to the gate line 303 in corresponding described subpixel area, concrete, a gate line 303 of the common connection of pixel electrode of every row hemistich, described in each, in subpixel area, described in each, same one end of gate line 303 is electrically connected to described sub-gate driver circuit.
Described sub-gate driver circuit can comprise a shift register 302, also can comprise a plurality of shift registers 302 that connect step by step.Each shift register 302 is electrically connected to the corresponding gate line 303 of hemistich pixel electrode, and in a line, gate line 303 mutually insulateds that are arranged in different subpixel region (can pass through manufacturing process, opening by the intermediate fabrication of a gate line for disconnecting, and formation is positioned at the gate line of two mutually insulateds of same a line).
It should be noted that in other embodiments of the invention, also can only have a subpixel area to comprise the pixel electrode of the non-full line of multirow, and other subpixel area comprise multirow full line pixel electrode.
Please continue to refer to Fig. 7, every sub-gate driver circuit comprises two initial sweep signal ends.In Fig. 7, demonstrate 12 initial sweep signal ends of 12 subpixel area, be respectively initial sweep signal end STV31, initial sweep signal end STV31 ', initial sweep signal end STV32, initial sweep signal end STV32 ', initial sweep signal end STV33, initial sweep signal end STV33 ', initial sweep signal end STV34, initial sweep signal end STV34 ', initial sweep signal end STV35, initial sweep signal end STV35 ', initial sweep signal end STV36 and initial sweep signal end STV36 '.First shift register 302 that each initial sweep signal end is electrically connected in corresponding subpixel area by signal wire 301.
In the present embodiment, the shift signal output terminal of last subpixel area and the shift signal input end of a rear subpixel area are set and disconnect, thereby make the initial sweep signal between each subpixel area separate.The initial sweep signal of each subpixel area is all independent to be provided by control chip, and is sent to each subpixel area by each initial sweep signal end, and therefore, different subpixel region can adopt different drive patterns.
Please continue to refer to Fig. 7, subpixel area 310, subpixel area 320, subpixel area 330, subpixel area 340 and subpixel area 350 include the pixel electrode (not shown) of four lines full line, and subpixel area 360 comprises the pixel electrode of a line full line.A gate line 303 of the common connection of pixel electrode of every row full line, in each subpixel area, same one end of each gate line 303 is electrically connected to sub-gate driver circuit, article one, one end of gate line 303 is electrically connected to a shift register 302, and all gate line 303 passes through to be electrically connected to shift register 302 with one end.
Though do not show in figure, but the display panel 300 that the present embodiment provides can also comprise judge module, judge module is used for judging that display frame corresponding to subpixel area is dynamic menu or tableaux, and makes sub-gate driver circuit corresponding to subpixel area enter dynamic driving pattern or static drive pattern according to judged result.
In the present embodiment, when the concrete picture of certain frame, described judge module can judge whether the picture in these 12 subpixel area has dynamic change (whether being dynamic menu), if there is dynamic change (being dynamic menu), corresponding sub-gate driver circuit sends initial sweep signal to corresponding subpixel area, to scan.If there is no dynamic change (being tableaux), can select not carry out scanning.But certainly, when certain subpixel area is during in a long time all in tableaux, corresponding sub-gate driver circuit still sends corresponding static scanning signal to carry out refresh scan by certain cycle, thereby prevent that the problems such as flicker from appearring in display panel 300, the image quality that simultaneously guarantees display frame each several part keeps identical, makes visual effect unaffected.
The display panel 300 that the present embodiment provides can adopt dynamic driving pattern and the corresponding subpixel area of static drive mode activated, dynamic driving module sends a signal to corresponding subpixel area with first frequency, static drive module is at the M with first frequency transmitted signal in the cycle, only select N the cycle wherein to send a signal to corresponding subpixel area, in (M-N) individual cycle, stop sending a signal to corresponding subpixel area, M and N positive integer comparatively wherein, and M is greater than N.
Concrete, for certain subpixel area, when its corresponding tableaux, static drive pattern can be in every two normal display cycles, select wherein first display cycle, make corresponding sub-gate driver circuit send a signal to this subpixel area, and select wherein second display cycle, make corresponding sub-gate driver circuit stop sending a signal to this subpixel area.
In the display panel 300 that the present embodiment provides, comprise a plurality of subpixel area, described in each, subpixel area is driven by sub-gate driver circuit, described in each, sub-gate driver circuit comprises at least one initial sweep signal end, therefore each subpixel area can drive independently, when the corresponding tableaux of subpixel area, can select static drive pattern to be described, thereby save driving power consumption.
Yet another embodiment of the invention also provides a kind of driving method of display panel, and the display panel 300 that the applicable previous embodiment of described driving method provides, specifically describes with display panel 300.
Display panel 300 is divided into six subpixel area by pixel region.Described driving method comprises: judge each subpixel area corresponding be tableaux or dynamic menu; When subpixel area corresponding be dynamic menu time, adopt subpixel area described in dynamic driving mode activated; When subpixel area corresponding be tableaux time, adopt subpixel area described in static drive mode activated.
In the present embodiment, dynamic driving pattern is specifically as follows: every through a period 1, chip sends single pass signal to corresponding sub-gate driver circuit, and sub-gate driver circuit sends to sweep signal corresponding subpixel area again.Static drive pattern is specifically as follows: often through a period 1 chip, stop sending sweep signal to after corresponding sub-gate driver circuit, in the subsequent period 1, chip sends a sweep signal to corresponding sub-gate driver circuit, and described sub-gate driver circuit sends to sweep signal corresponding subpixel area again.
In the present embodiment, when stopping sending sweep signal to corresponding sub-gate driver circuit, stop sending picture signal to subpixel area simultaneously, thereby further save driving power consumption.
In the present embodiment, whole subpixel area complete and once drive is a display cycle, and in each display cycle, each subpixel area drives one by one.
In the present embodiment, the pixel electrode of every row full line is all divided into equal first and second portion, first's pixel electrode and second portion pixel electrode are positioned at different subpixel region, and be electrically connected to the gate line 303 and gate line 303 mutually insulateds (as shown in Figure 7) that are electrically connected to second portion pixel electrode of first's pixel electrode, now, can drive first's pixel electrode and second portion pixel electrode (because the data line that each row pixel electrode is electrically connected to is separated from each other) simultaneously.
And, when the first that one of them subpixel area comprises multirow pixel electrode, during second portion that another subpixel area comprises multirow pixel electrode, can drive this two subpixel area simultaneously.Subpixel area 310 and subpixel area 310 ' as shown in Figure 7, because both comprise respectively first and the second portion of four lines pixel electrode, so both can drive simultaneously.
It should be noted that, in other embodiments of the invention, (the pixel electrode number that in different rows, first and second portion comprise can equate the pixel electrode of every row full line can be divided into first and second portion equally, also can be unequal), pixel electrode in first is adjacent between two, pixel electrode in second portion is also adjacent between two, the gate line that is electrically connected to first's pixel electrode is electrically connected to the driver element (shift register) in pixel region left side, the gate line that is electrically connected to second portion pixel electrode is electrically connected to the driver element on pixel region right side.Now, first's pixel electrode can drive with the second portion pixel electrode that is positioned at different lines simultaneously.And the first that comprises many entire row of pixels electrodes when one of them subpixel area, the second portion that another subpixel area comprises many entire row of pixels electrodes, and when the pixel electrode that two subpixel area comprise is not positioned at same row, these two subpixel area also can drive simultaneously.
Shown in present Fig. 7, whole pixel region is divided into each six subpixel area of left and right, and each subpixel area does not all comprise the pixel electrode of full line, that is to say, the pixel electrode of every row full line is all in two the different subpixel area in left and right.Further, the position that the pixel electrode of every row full line is divided is identical.In this case, subpixel area 310, subpixel area 320, subpixel area 330, subpixel area 340, subpixel area 350 and subpixel area 360 can form the first pixel region, subpixel area 310 ', subpixel area 320 ', subpixel area 330 ', subpixel area 340 ', subpixel area 350 ' and subpixel area 360 ' can form the second pixel region, described the first pixel region and described the second pixel region can separately drive, and both can independently drive separately.
Please refer to Fig. 8, yet another embodiment of the invention provides a kind of display panel 400.In display panel 400, have at least a subpixel area comprise multirow full line pixel electrode, for example the subpixel area in Fig. 8 410 comprise multirow full line pixel electrode, display panel has at least a subpixel area to comprise the pixel electrode of the non-full line of multirow simultaneously, in Fig. 8, subpixel area 420 and subpixel area 430 comprise the pixel electrode of the non-full line of multirow.And the suspension points on vertical direction in Fig. 8 (...) represent that display panel 400 can comprise more subpixel area.
In the display panel 400 that the present embodiment provides, can divide neatly each subpixel area, thereby provide condition precedent for saving driving power consumption.In the display panel 400 that the present embodiment provides, the driving method of each subpixel area can, with reference to this instructions the various embodiments described above corresponding contents, not repeat them here.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, so protection scope of the present invention should be as the criterion with claim limited range.
Claims (12)
1. a display panel, it is characterized in that, comprise: a plurality of subpixel area and a plurality of sub-gate driver circuit, described in each, subpixel area is driven by a corresponding described sub-gate driver circuit, and described in each, sub-gate driver circuit comprises at least one initial sweep signal end.
2. display panel as claimed in claim 1, it is characterized in that, described at least one, subpixel area comprises the pixel electrode of multirow full line, a gate line of the common electrical connection of pixel electrode of every row full line, described in each, sub-gate driver circuit is positioned at one of them side of corresponding described subpixel area, and described sub-gate driver circuit is electrically connected to the described gate line in corresponding described subpixel area.
3. display panel as claimed in claim 1, is characterized in that, described at least one, subpixel area comprises the pixel electrode of multirow full line, a gate line of the common electrical connection of pixel electrode of every row full line; Every sub-gate driver circuit comprises the first sub-gate driver circuit and the second sub-gate driver circuit, described the first sub-gate driver circuit and the second sub-gate driver circuit lay respectively at two relative sides of corresponding subpixel area, described the first sub-gate driver circuit is electrically connected to the described gate line that is positioned at odd-numbered line in corresponding described subpixel area, and described the second sub-gate driver circuit is electrically connected to the described gate line that is positioned at even number line in corresponding described subpixel area.
4. display panel as claimed in claim 1, it is characterized in that, described at least one, subpixel area comprises the pixel electrode of the non-full line of multirow, a gate line of the common electrical connection of pixel electrode of the non-full line of described every row, described in each, sub-gate driver circuit is positioned at one of them side of corresponding described subpixel area, and described sub-gate driver circuit is electrically connected to the described gate line in corresponding described subpixel area.
5. display panel as claimed in claim 1, it is characterized in that, described display panel also comprises judge module, described judge module is used for judging that display frame corresponding to described subpixel area is dynamic menu or tableaux, and makes sub-gate driver circuit corresponding to described subpixel area enter dynamic driving pattern or static drive pattern according to judged result.
6. display panel as claimed in claim 5, it is characterized in that, described dynamic driving pattern sends a signal to corresponding sub-gate driver circuit with first frequency, described static drive pattern is at the M with first frequency transmitted signal in the cycle, only select N the cycle wherein to send a signal to corresponding sub-gate driver circuit, in (M-N) individual cycle, stop sending a signal to corresponding sub-gate driver circuit, M and N positive integer comparatively wherein, and M is greater than N.
7. display panel as claimed in claim 6, it is characterized in that, described static drive pattern is: every K described period 1 stops sending sweep signal to corresponding described sub-gate driver circuit, follow-up L is in the described period 1, every through an extremely corresponding described sub-gate driver circuit of described period 1 transmission single pass signal.
8. a driving method for display panel, comprising:
Described display panel is divided into a plurality of subpixel area;
Judge subpixel area described in each corresponding be tableaux or dynamic menu;
When described subpixel area corresponding be dynamic menu time, adopt subpixel area described in dynamic driving mode activated;
When described subpixel area corresponding be tableaux time, adopt subpixel area described in static drive mode activated.
9. driving method as claimed in claim 8, is characterized in that,
Described dynamic driving pattern is: every through a period 1, send single pass signal to described subpixel area;
Described static drive pattern is: at X, in described period 1, select any Y the described period 1 wherein, often send single pass signal to described subpixel area through a described period 1; Period 1 described in other, stop sending sweep signal to described sub-gate driver circuit; Wherein X and Y are positive integer, and Y is less than X.
10. driving method as claimed in claim 9, it is characterized in that, described static drive pattern is: every K described period 1 stops sending sweep signal to described subpixel area, in follow-up L described period 1, often send single pass signal to described subpixel area through a described period 1.
11. driving methods as described in claim 9 or 10, it is characterized in that, described display panel comprises chip and the sub-gate driver circuit corresponding with each subpixel area, described sweep signal is sent to sub-gate driver circuit described in each by described chip, and is sent to subpixel area described in each by sub-gate driver circuit described in each.
12. driving methods as claimed in claim 8, is characterized in that, whole subpixel area complete and once drive is a display cycle, and in each display cycle, each subpixel area scans one by one.
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| CN201410365782.9A CN104123906A (en) | 2014-07-29 | 2014-07-29 | Display panel and driving method thereof |
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