Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouchedThe specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to justOnly the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
The embodiment of the present invention provides a kind of driving method of display panel, and display panel includes multiple pictures arranged in arraysPlain unit, each pixel unit include N number of sub-pixel, and N is positive integer.It is shown in image the described method includes: controlling every frame, oftenTwo row pixel units are a sub- drive cycle, the sub-pixel and next line pixel list of the last one charging in previous row pixel unitThe display color of the sub-pixel to charge at first in member is identical, and the sub-pixel charging that the last one in previous row pixel unit chargesAfter unlatching, sub-pixel charging clock signal is continued until after the sub-pixel charging complete that next line pixel unit charges at firstLow and high level switching is carried out again.Control the sub-pixel and next sub- drive cycle of the last one charging of previous sub- drive cycleThe display color of the sub-pixel to charge at first is identical, and the sub-pixel of the last one charging of previous sub- drive cycle charges and opensAfterwards, sub-pixel charging clock signal be continued until after sub-pixel charging complete that next sub- drive cycle charges at first again intoThe switching of row low and high level.Every N frame shows that image is a drive cycle；Wherein in each drive cycle, each frame shows that image drivesThe display color for the sub-pixel that dynamic period the first row pixel unit charges at first respectively corresponds N number of sub-pixel of each pixel unitDisplay color, each frame shows the display color difference for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at firstThe display color of N number of sub-pixel of corresponding each pixel unit.
The driving method of display panel provided by the invention shows image with N frame as a drive cycle, and every frame shows imageIn, every two rows pixel unit is a sub- drive cycle.In each sub- drive cycle, the last one in previous row pixel unit chargesSub-pixel and next line pixel unit in the display color of sub-pixel that charges at first it is identical, and in previous row pixel unit mostAfter the sub-pixel charging of the latter charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit fills at firstLow and high level switching is carried out again after the sub-pixel charging complete of electricity, therefore can save the height of charging clock signal in the ranksLevel switching times.Control the sub-pixel of the last one charging and the filling at first for next sub- drive cycle of previous sub- drive cycleAfter the display color of the sub-pixel of electricity is identical, and the sub-pixel charging of the last one charging of previous sub- drive cycle is opened, sonPixel charging clock signal carries out height after being continued until the sub-pixel charging complete that next sub- drive cycle charges at first againLow level switching, therefore the low and high level switching times of charging clock signal in the ranks can also be saved.Averagely arrive every a line pictureIn plain unit charging process, it is possible to reduce the switching of 2 charging clock signal low and high levels, therefore display panel can be reducedPower consumption.
As shown in Fig. 2, if sub-pixel fills after the sub-pixel charging unlatching that the last one in previous row pixel unit chargesElectrical clock signal be continued until next line pixel unit charge at first sub-pixel charging complete after carry out low and high level againSwitching；After the sub-pixel charging complete that the last one charges so in previous row pixel unit, since sub-pixel charging clock is believedIt number is not turned off, it is electric that the charging voltage for the sub-pixel that the last one in previous row pixel unit charges can be always maintained at original chargingStraightening, which is changed to charging clock signal by high level, switchs to low level.And in two row pixel unit of front and back between other sub-pixels byLow level is changed in the low and high level switching for normally carrying out charging clock signal, therefore in charging clock signal high level dressWhen, charging voltage can be declined slightly.Therefore according to above-mentioned driving method, when the sub-pixel of some display colors does not omit chargingThe low and high level of clock signal switches, therefore will appear charging voltage decline；The sub-pixel of some display colors is due in a sonThe low and high level of charging clock signal is omitted between two row of front and back of drive cycle or between former and later two sub- drive cyclesSwitching, therefore charging voltage remains unchanged, so the sub-pixel of different display colors will appear the uneven problem of charging, to go outExisting color offset phenomenon.
The embodiment of the present invention controls every N frame and shows that image is a drive cycle, and in each drive cycle, each frame display figureThe display color of the sub-pixel to be charged at first as sub- drive cycle the first row pixel unit respectively corresponds the N number of of each pixel unitThe display color of sub-pixel, each frame show the display face for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at firstColor respectively corresponds the display color of N number of sub-pixel of each pixel unit.Such as each pixel unit includes 3 sub-pixels, pointNot Wei display color be red sub-pixel, the sub-pixel that display color is green and sub-pixel that display color is blue.Every 3Frame shows that image is a drive cycle, and first frame shows the sub-pixel that the sub- drive cycle the first row pixel unit of image charges at firstDisplay color be red, the second frame shows the display of sub-pixel that the sub- drive cycle the first row pixel unit of image charges at firstColor is green, and third frame shows that the display color for the sub-pixel that the sub- drive cycle the first row pixel unit of image charges at first isBlue.First frame shows that the display color for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at first is blue,Second frame shows the display color for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at first for red, third frameThe display color for the sub-pixel that display sub- the second row of the drive cycle pixel unit of image charges at first is green.Therefore first frame is aobviousThe display color of the sub-pixel of the adjacent unlatching of two row pixel units is blue, two son driving of front and back before and after diagram picture drive cycleThe display color of the sub-pixel of period adjacent unlatching is red, therefore first frame shows that the charging clock signal saved in image is highLow level includes red and blue without the sub-pixel display color of switching.Second frame is shown two before and after the sub- drive cycle of imageThe display color of the sub-pixel of the adjacent unlatching of row pixel unit is red, the sub-pixel of the adjacent unlatching of the sub- drive cycle in front and back twoDisplay color is green, therefore the second frame shows sub- picture of the charging clock signal low and high level saved in image without switchingPlain display color includes red and green.Third frame shows the son of the adjacent unlatching of two row pixel units before and after the sub- drive cycle of imageThe display color of pixel is green, and the display color of the sub-pixel of the adjacent unlatching of the sub- drive cycle in front and back two is blue, therefore theThree frames show in image the charging clock signal low and high level saved without the sub-pixel display color of switching include green andBlue.So display color is that red, green and blue the corresponding of sub-pixels omission are omitted in the ranks in a drive cycleCharging clock signal low and high level switching number be it is identical, i.e., due to omit charging clock signal low and high level switching,The effect of the sub-pixel charging voltage of different display colors on the whole is identical.So in statistical significance, each displayThe charging situation of the sub-pixel of color is identical, therefore the embodiment of the present invention can be on the basis of reducing display panel power consumption, alsoDisplay effect can be improved, avoid the occurrence of color offset phenomenon caused by the sub-pixel charging unevenness of different display colors.
The above are the core concepts of the driving method of display panel provided by the invention, below in conjunction with the embodiment of the present inventionIn attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Based on the embodiments of the present invention,Without making creative work, every other embodiment obtained belongs to this to those of ordinary skill in the artInvent the range of protection.
Fig. 3 is a kind of charging timing diagram of the driving method of display panel provided in an embodiment of the present invention.Illustrative Fig. 3It include 3 sub-pixels, respectively the first display color sub-pixel A1, the second display color with each pixel unit of display panelIt describes in detail for sub-pixel A2 and third display color sub-pixel A3.For convenience of explanation, it is indicated simultaneously with A1 belowThe display color of first display color sub-pixel and the first display color sub-pixel.It is similar, indicate the simultaneously with A2 belowThe display color of two display color sub-pixels and the second display color sub-pixel.Third display color is indicated simultaneously with A3 belowThe display color of sub-pixel and third display color sub-pixel.
As shown in figure 3, the drive cycle of the embodiment of the present invention includes that 3 frames show image, respectively first frame shows imageB1, the second frame show that image B2 and third frame show image B3.Every frame shows in image that every two rows pixel unit is a son drivingPeriod.CKHA1, CKHA2, CKHA3 are respectively to the sub-pixel that display color is A1, display color is A2 and display color is A3Charging clock signal.
First frame shows in image B1 that every two rows pixel unit is a sub- drive cycle, the charging of previous row pixel unitSequence is successively to open A1, A2, A3；The charging order of one-row pixels unit is successively to open A3, A2, A1 afterwards.
Second frame shows in image B2 that every two rows pixel unit is a sub- drive cycle, the charging of previous row pixel unitSequence is successively to open A2, A3, A1；The charging order of one-row pixels unit is successively to open A1, A3, A2 afterwards.
Third frame shows in image B3 that every two rows pixel unit is a sub- drive cycle, the charging of previous row pixel unitSequence is successively to open A3, A1, A2；The charging order of one-row pixels unit is successively to open A2, A1 and A3 afterwards.
In first frame display image B1, sub-pixel and next line pixel list that the last one in previous row pixel unit chargesThe display color of the sub-pixel to charge at first in member is identical, is A3, and the son that the last one in previous row pixel unit chargesAfter pixel charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit charges the charging of sub-pixel at firstLow and high level switching is carried out after completing again.The sub-pixel of the last one charging of previous sub- drive cycle and next sub- driving weekThe display color for the sub-pixel of phase to charge at first is identical, is A1, and the son of the last one charging of previous sub- drive cycleAfter pixel charging is opened, sub-pixel charging clock signal is continued until the sub-pixel charging that next sub- drive cycle charges at firstLow and high level switching is carried out after completing again.As shown in figure 3, the first row pixel unit and the second row pixel unit are correspondingThe high level of CKHA3 is connected, and does not carry out low and high level switching；Second row pixel unit and the third line pixel unit are correspondingThe high level of CKHA1 is connected, and does not carry out low and high level switching.It is therefore average into the charging process of every one-row pixels unit,The low and high level switching times of CKHA1, CKHA2, CKHA3 are reduced to 4 times by 6 times in the prior art (referring to Fig. 1).
In second frame display image B2, sub-pixel and next line pixel list that the last one in previous row pixel unit chargesThe display color of the sub-pixel to charge at first in member is identical, is A1, and the son that the last one in previous row pixel unit chargesAfter pixel charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit charges the charging of sub-pixel at firstLow and high level switching is carried out after completing again.The sub-pixel of the last one charging of previous sub- drive cycle and next sub- driving weekThe display color for the sub-pixel of phase to charge at first is identical, is A2, and the son of the last one charging of previous sub- drive cycleAfter pixel charging is opened, sub-pixel charging clock signal is continued until the sub-pixel charging that next sub- drive cycle charges at firstLow and high level switching is carried out after completing again.As shown in figure 3, the first row pixel unit and the second row pixel unit are correspondingThe high level of CKHA1 is connected, and does not carry out low and high level switching；Second row pixel unit and the third line pixel unit are correspondingThe high level of CKHA2 is connected, and does not carry out low and high level switching.It is therefore average into the charging process of every one-row pixels unit,The low and high level switching times of CKHA1, CKHA2, CKHA3 are reduced to 4 times by 6 times in the prior art (referring to Fig. 1).
In third frame display image B3, sub-pixel and next line pixel list that the last one in previous row pixel unit chargesThe display color of the sub-pixel to charge at first in member is identical, is A2, and the son that the last one in previous row pixel unit chargesAfter pixel charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit charges the charging of sub-pixel at firstLow and high level switching is carried out after completing again.The sub-pixel of the last one charging of previous sub- drive cycle and next sub- driving weekThe display color for the sub-pixel of phase to charge at first is identical, is A3, and the son of the last one charging of previous sub- drive cycleAfter pixel charging is opened, sub-pixel charging clock signal is continued until the sub-pixel charging that next sub- drive cycle charges at firstLow and high level switching is carried out after completing again.As shown in figure 3, the first row pixel unit and the second row pixel unit are correspondingThe high level of CKHA2 is connected, and does not carry out low and high level switching；Second row pixel unit and the third line pixel unit are correspondingThe high level of CKHA3 is connected, and does not carry out low and high level switching.It is therefore average into the charging process of every one-row pixels unit,The low and high level switching times of CKHA1, CKHA2, CKHA3 are reduced to 4 times by 6 times in the prior art (referring to Fig. 1).
To sum up, the driving method of display panel provided in an embodiment of the present invention compared to driving side in the prior artThe low and high level switching times of method, each charging clock signal of every row sub-pixel are reduced to 4 times by 6 times, therefore can significantly be subtractedThe power consumption of small display panel.
If charging clock signal CKHA1, CKHA2, CKHA3 are respectively arranged with reverse charging clock signal XCKHA1,XCKHA2, XCKHA3, as shown in figure 3, so every one-row pixels unit charging also needs reverse charging clock signal XCKHA1,The low and high level switching total degree of XCKHA2, XCKHA3 are also reduced to 4 times by 6 times, therefore by CKHA1, CKHA2, CKHA3 andWhen XCKHA1, XCKHA2, XCKHA3 co- controlling sub-pixel charging order, each charging clock signal of every row pixel unit and anti-It is reduced to 8 times to the low and high level switching times of charging clock signal by 12 times in the prior art.
First frame is shown in image B1, due to the height of the first row pixel unit and the corresponding CKHA3 of the second row pixel unitLevel is connected, and does not carry out low and high level switching；The high level phase of the CKHA1 of second row pixel unit and the third line pixel unitEven, low and high level switching is not carried out.Therefore the charging voltage of A3 and A1 is constant, and the charging voltage of A2 can be declined slightly.If every frameDisplay figure shows that the charging order of image is driven with first frame, then A1, A2 and A3 charging unevenness certainly will be will cause,There is color offset phenomenon.Therefore, the embodiment of the present invention shows image for a drive cycle with 3 frames.And 3 frame show image charging it is suitableSequence is different, controls in each drive cycle, and each frame shows the sub- picture that the sub- drive cycle the first row pixel unit of image charges at firstThe display color of element respectively corresponds the display color of N number of sub-pixel of each pixel unit, and each frame shows the sub- drive cycle of imageThe display color for the sub-pixel that second row pixel unit charges at first respectively corresponds the display of N number of sub-pixel of each pixel unitColor.
It is shown in image B2 referring to the second frame, due to the height of the first row pixel unit and the CKHA1 of the second row pixel unitLevel is connected, and does not carry out low and high level switching, the high level phase of the CKHA2 of the second row pixel unit and the third line pixel unitEven, low and high level switching is not carried out.Therefore the charging voltage of A1 and A2 is constant, and the charging voltage of A3 can be declined slightly.
Similar, third frame is shown in image B3, since the first row pixel unit and the second row pixel unit are correspondingThe high level of CKHA2 is connected, and does not carry out low and high level switching, the CKHA3's of the second row pixel unit and the third line pixel unitHigh level is connected, and does not carry out low and high level switching.Therefore the charging voltage of A2 and A3 is constant, under the charging voltage of A1 can slightly haveDrop.
To sum up, in a drive cycle (3 frames show image), first frame shows two rows before and after image B1 drive cycleThe display color of the sub-pixel of the adjacent unlatching of pixel unit is A3, the display of the sub-pixel of the adjacent unlatching of the sub- drive cycle in front and back twoColor is A1, so first frame shows that the sub-pixel for omitting charging clock signal low and high level switching in the ranks in image B1 shows faceColor has an A3 and A1, therefore the switching due to saving charging clock signal in the ranks, and the charging voltage of A3 and A1 are constant, the charging electricity of A2Pressure can be declined slightly；Second frame shows the display of the sub-pixel of the adjacent unlatching of two row pixel units of image B2 drive cycle front and backColor is A1, and the display color of the sub-pixel of the adjacent unlatching of the sub- drive cycle in front and back two is A2, so the second frame shows image B2The sub-pixel display color of middle omission charging clock signal low and high level switching in the ranks has A1 and A2, therefore in the ranks fills due to savingThe charging voltage of the switching of electrical clock signal, A1 and A2 are constant, and the charging voltage of A3 can be declined slightly；Third frame shows image B3The display color of the sub-pixel of the adjacent unlatching of two row pixel units is A2 before and after sub- drive cycle, and the sub- drive cycle in front and back two is adjacentThe display color of the sub-pixel of unlatching is A3, and third frame, which is shown, omits charging clock signal low and high level switching in the ranks in image B3Sub-pixel display color have an A2 and A3, therefore the switching due to saving charging clock signal in the ranks, the charging voltage of A2 and A3Constant, the charging voltage of A1 can be declined slightly.Therefore, in a drive cycle, each frame shows the sub- drive cycle of image for controlThe display color for the sub-pixel that the first row pixel unit charges at first respectively corresponds the display of N number of sub-pixel of each pixel unitColor, each frame show that the display color for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at first respectively corresponds oftenThe display color of N number of sub-pixel of a pixel unit, it is ensured that in a drive cycle, N number of different sons in pixel unitThe number of the corresponding omission of pixel charging clock signal low and high level switching in the ranks is identical, to make pixel in a drive cycleN number of different subpixel is shown in image in 3 frames in unit, due to saving the switching of charging clock signal in the ranks, every sub-pixelThe number of repetition that charging voltage remains unchanged is equal.So said in statistical significance, it is high due to omitting charging clock signal in the ranksThe case where all sub-pixel charging voltages caused by low level switches are affected is identical.Therefore it sees on the whole, it is differentThe sub-pixel problem uneven there is no charging.Therefore the driving method of display panel provided in an embodiment of the present invention can reduceOn the basis of display panel power consumption, improve display effect, avoids the occurrence of color offset phenomenon caused by different subpixel charging unevenness.
It should be noted that Fig. 3 is illustratively by taking each pixel unit includes the sub-pixel of 3 different display colors as an exampleIt is introduced, and the restriction not to the embodiment of the present invention.The number for the sub-pixel that the present invention includes to each pixel unit is notIt limits.In addition, Fig. 3 be illustratively arranged each drive cycle 3 frames show image sequence be first frame show image B1,Second frame shows that image B2, third frame show image B3, the also restriction not to the embodiment of the present invention.It is right in the embodiment of the present inventionEach frame shows the driving sequence of image without limitation in each drive cycle.For example, each frame display figure in each drive cycleThe driving sequence of picture is it may also is that the second frame shows that image B2, first frame show that image B1, third frame show image B3.
In other implementations, each frame shows that the charging of the charging order of two row of front and back of each sub- drive cycle of image is suitableSequence can also be by other modes.For convenient for distinguishing, first frame in Fig. 3 is shown that the charging of previous row pixel unit in image B1 is suitableSequence is successively to open A1, A2, A3；The charging order of one-row pixels unit is successively to open A3, A2 afterwards, and A1 is denoted as mode X1.It is successively to open A2, A3, A1 by the charging order that the second frame in Fig. 3 shows previous row pixel unit in image B2；A line picture afterwardsThe charging order of plain unit is successively to open A1, A3, and A2 is denoted as mode Y1.Third frame is shown into previous row pixel list in image B3The charging order of member is successively to open A3, A1, A2；The charging order of one-row pixels unit is successively to open A2, A1 afterwards, and A3 is denoted asMode Z1.
For example, first frame shows that the charging order of the previous row pixel unit of each sub- drive cycle in image B1 can be withIt is successively to open A3, A2, A1；The charging order of one-row pixels unit is successively to open A1, A2, A3 afterwards.The driving method is rememberedFor mode X2.
Similar, the second frame shows that the charging order of the previous row pixel unit of each sub- drive cycle in image B2 may be used alsoTo be successively to open A1, A3, A2；The charging order of one-row pixels unit is successively to open A2, A3, A1 afterwards.By the driving methodIt is denoted as mode Y2.
Third frame show image B3 in each sub- drive cycle previous row pixel unit charging order can also be according toSecondary unlatching A2, A1, A3；The charging order of one-row pixels unit is successively to open A3, A1, A2 afterwards.By the driving method side of being denoted asFormula Z2.
In the charging process of entire display panel, mode X1 can be replaced mutually with mode X2, mode Y1 and mode Y2It can be replaced mutually, mode Z1 can be replaced mutually with mode Z2.As shown in figure 4, unlike Fig. 3, first frame display figureIn picture B1, every two rows pixel unit is a sub- drive cycle, and the charging order of previous row pixel unit is successively to open A3, A2,A1, the charging order of rear one-row pixels unit are successively to open A1, A2, A3, i.e. mode X2.In second frame display image B2, oftenTwo row pixel units are a sub- drive cycle, and the charging order of previous row pixel unit is successively to open A1, A3, A2；A line afterwardsThe charging order of sub-pixel unit is successively to open A2, A3, A1, i.e. mode Y2.In third frame display image B3, every two rows pixelUnit is a sub- drive cycle, and the charging order of previous row pixel unit is successively to open A2, A1, A3；One-row pixels unit afterwardsCharging order be successively open A3, A1, A2, i.e. mode Z2.
On the basis of the above embodiments, the display color mixing of multiple sub-pixels in each pixel unit can be setAt white.For example, the display color of the first display color sub-pixel is red (R) in each pixel unit, second displayThe display color of color sub-pixels is green (G), and the display color of the third display color sub-pixel is blue (B).Pass throughMiscellaneous face is obtained to red (R), green (G), the variation of blue (B) three Color Channels and their mutual superpositionsColor.The arrangement of sub-pixel colors in each pixel unit is not limited to the arrangement mode of RGB, for example, can also be RBG,The arrangement mode of GBR, GRB, BRG or BGR.
Fig. 5 is the time diagram of the driving method of another display panel provided in an embodiment of the present invention.With Fig. 3 and figureUnlike 4, it includes the first display color sub-pixel, that the timing of driving method shown in Fig. 5, which can drive each pixel unit,The display panel of two display color sub-pixels, third display color sub-pixel and the 4th display color sub-pixel.Still make in Fig. 5Indicate the display color of the first display color sub-pixel and the first display color sub-pixel simultaneously with A1.The is indicated simultaneously with A2The display color of two display color sub-pixels and the second display color sub-pixel.Third display color picture is indicated simultaneously with A3The display color of element and third display color sub-pixel.And indicate the 4th display color sub-pixel and the 4th aobvious simultaneously with A4Show the display color of color sub-pixels.CKHA1, CKHA2, CKHA3, CKHA4 are respectively A1 to display color, display color isThe charging clock signal for the sub-pixel that A2, display color are A3 and display color is A4.For the circuit of CMOS framework, chargingClock signal CKHA1, CKHA2, CKHA3, CKHA4 have respectively corresponded reverse charging clock signal XCKHA1, XCKHA2,XCKHA3, XCKHA4.
As shown in figure 5, first frame is shown in image B1, every two rows pixel unit is a sub- drive cycle, previous row pixelThe charging order of unit is to first turn on A1, finally opens A4, and the charging order of rear one-row pixels unit is to first turn on A4, mostAfter open A1.
Second frame shows in image B2 that every two rows pixel unit is a sub- drive cycle, the charging of previous row pixel unitSequence finally opens A1, the charging order of rear one-row pixels unit is to first turn on A1, finally opens A2 to first turn on A2.
Third frame shows in image B3 that every two rows pixel unit is a sub- drive cycle, the charging of previous row pixel unitSequence finally opens A2, the charging order of rear one-row pixels unit is to first turn on A2, finally opens A3 to first turn on A3.
4th frame shows that image B4, every two rows pixel unit are a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is to first turn on A4, finally opens A3, and the charging order of rear one-row pixels unit is to first turn on A3, finally opens A4.
Likewise, displaying panel driving method shown in Fig. 5 shows that the letter of charging clock in the ranks is omitted in image due to every frameNumber low and high level switching, therefore also may be implemented reduce display panel power consumption effect.In addition, similar with Fig. 3, Fig. 5 is with 4 framesDisplay image is a drive cycle, and 4 frames show that the charging order of image is different, control in each drive cycle, each frame is shownThe display color for the sub-pixel that the sub- drive cycle the first row pixel unit of image charges at first respectively corresponds the N of each pixel unitThe display color of a sub-pixel, each frame show the display for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at firstColor respectively corresponds the display color of N number of sub-pixel of each pixel unit, it is ensured that in a drive cycle, pixel listThe number of the corresponding omission of N number of sub-pixel of member charging clock signal low and high level switching in the ranks is identical, to make a drivingN number of sub-pixel of pixel unit is shown in image in 4 frames in period, is cut due to saving charging clock signal low and high level in the ranksIt changes, the number of repetition that charging voltage remains unchanged is equal.So being said in statistical significance, due to omitting charging clock signal in the ranksThe case where all sub-pixel charging voltages caused by low and high level switches are affected is identical.Therefore it sees on the whole, noWith the sub-pixel problem uneven there is no charging.
It should be noted that the embodiment of the present invention shows the first row pixel unit and the second row in image B1 to first frameThe charging order of A2 and A3 is without limitation in pixel unit.It is similar to the second frame show in image B2 pixel unit sub-pixel withAnd the charging order of A3 and A4 in pixel unit sub-pixel, the first row pixel unit and second in image B3 is shown to third frameThe charging order of A4 and A1 in row pixel unit shows the first row pixel unit and the second row pixel in image B4 to the 4th frameThe charging order of A1 and A2 is also without limitation in unit.First frame is illustratively set in Fig. 5 and shows the first row picture in image B1The charging order of plain unit is A1, A2, A3, A4；The charging order of second row pixel unit is A4, A3, A2, A1.Second frame is aobviousDiagram is A2, A3, A4, A1 as the charging order of the first row pixel unit in B2；The charging order of second row pixel unit is A1,A4, A3, A2.Third frame shows that the charging order of the first row pixel unit in image B2 is A3, A4, A1, A2；Second row pixel listThe charging order of member is A2, A1, A4, A3.4th frame show image B2 in the first row pixel unit charging order be A4, A1,A2, A3；The charging order of second row pixel unit is A3, A2, A1, A4.That is adjacent rows pixel list is illustratively set in Fig. 5The charging order of corresponding 4 sub-pixels of member is opposite.
Fig. 5 is only that each pixel unit is driven to include the first display color sub-pixel, the second display color sub-pixel, thirdA kind of driving method of the display panel of display color sub-pixel and the 4th display color sub-pixel, in other implementations, each frameShow that the charging order of the charging order of two row of front and back of each sub- drive cycle of image can also be by other modes.At otherIn embodiment, such as first frame shows in image B1 that the charging order of previous row pixel unit can also be to first turn on A4,A1 is finally opened, the charging order of rear one-row pixels unit is to first turn on A1, finally opens A4；Second frame shows image B2In, the charging order of previous row pixel unit is to first turn on A1, finally opens A2, the charging order of rear one-row pixels unit isA2 is first turned on, A1 is finally opened；Third frame shows in image B3 that the charging order of previous row pixel unit is to first turn onA2 finally opens A3, and the charging order of rear one-row pixels unit is to first turn on A3, finally opens A2；4th frame shows imageB4, the charging order of previous row pixel unit are to first turn on A3, finally open A4, the charging order of rear one-row pixels unit isA4 is first turned on, A3 is finally opened.
Fig. 6 is the time diagram of the driving method of another display panel provided in an embodiment of the present invention.It is different from Fig. 5, first frame shows in image B1 that the charging order of previous row pixel unit is to first turn on A4, finally opens A1, latterThe charging order of row pixel unit is to first turn on A1, finally opens A4.
Second frame shows in image B2 that the charging order of previous row pixel unit is to first turn on A1, finally opens A2, afterThe charging order of one-row pixels unit is to first turn on A2, finally opens A1；
Third frame shows in image B3 that the charging order of previous row pixel unit is to first turn on A2, finally opens A3, afterThe charging order of one-row pixels unit is to first turn on A3, finally opens A2.
4th frame shows in image B4 that the charging order of previous row pixel unit is to first turn on A3, finally opens A4,The charging order of one-row pixels unit is to first turn on A4 afterwards, finally opens A3.
It should be noted that the sequence that the 4 frames display image of each drive cycle is illustratively arranged in Fig. 5 and Fig. 6 isFirst frame shows that image B1, the second frame show that image B2, third frame show that image B3, the 4th frame show image B4, and is not pairThe restriction of the embodiment of the present invention.The present invention shows the driving sequence of image without limitation for frame each in each drive cycle.
On the basis of the above embodiments, optionally, it is red that the display color of the first display color sub-pixel, which can be set,Color (R), the display color of the second display color sub-pixel are green (G), and the display color of third display color sub-pixel is indigo plantColor (B), the display color of the 4th display color sub-pixel are white (W).Wherein, the present invention is to pixel list each in display panelThe sub-pixel colors of member put in order without limitation, such as can be RBGW, can also be the arrangement modes such as RWGB.Show faceColor is that the addition of the sub-pixel of white can provide the display brightness of display panel, and picture light transmittance is high, because not needing to lead to againThe quantity for increasing LED light is crossed come the case where making up luminance shortage, so can also save departmental cost.
In addition, multiple displays can also be arranged in a pixel unit to enrich display panel degree beautiful in colourThe identical sub-pixel of color.Such as human eye is most sensitive to green, and the display color of 2 sub-pixels in each pixel unit is arrangedFor green, the display color of other two sub-pixel is respectively red and blue.Display panel provided in an embodiment of the present inventionDriving method may be equally applicable for the driving of the display panel of this kind of structure.It only need to be the sub- picture of green by 2 display colorsElement regards the sub-pixel of different display colors as.Such as the sub-pixel that display color in each pixel unit is red is rememberedFor the first display color sub-pixel A1；The sub-pixel that display color in each pixel unit is blue is denoted as the 4th display colorSub-pixel A4；The sub-pixel that 2 display colors in each pixel unit are green is denoted as the second display color picture respectivelyPlain A2 and third display color sub-pixel A3.The display color of the second display color sub-pixel A2 is such as denoted as the first green, instituteThe display color for stating third display color sub-pixel A3 is denoted as the second green.The description class of specific driver' s timing and Fig. 5 or Fig. 6Seemingly, it is not described in detail herein.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of multiple selector, for controlling every frame display figureAs in, every two rows pixel unit is a sub- drive cycle, in previous row pixel unit the sub-pixel of the last one charging with it is nextThe display color of the sub-pixel to charge at first in row pixel unit is identical, and the son that the last one in previous row pixel unit chargesAfter pixel charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit charges the charging of sub-pixel at firstLow and high level switching is carried out after completing again；The sub-pixel of the last one charging of previous sub- drive cycle and next sub- driving weekThe display color for the sub-pixel of phase to charge at first is identical, and the sub-pixel charging of the last one charging of previous sub- drive cycleAfter unlatching, sub-pixel charging clock signal is continued until after the sub-pixel charging complete that next sub- drive cycle charges at firstLow and high level switching is carried out again；Every N frame shows that image is a drive cycle；In each drive cycle, each frame shows that image drivesThe display color for the sub-pixel that dynamic period the first row pixel unit charges at first respectively corresponds N number of sub-pixel of each pixel unitDisplay color, each frame shows the display color difference for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at firstThe display color of N number of sub-pixel of corresponding each pixel unit；Wherein, N is the number of the pixel unit sub-pixel of display panelAmount, and N is positive integer.
Multiple selector control N frame provided in an embodiment of the present invention shows that image is a drive cycle, and every frame shows imageIn, every two rows pixel unit is a sub- drive cycle.In each sub- drive cycle, the last one in previous row pixel unit chargesSub-pixel and next line pixel unit in the display color of sub-pixel that charges at first it is identical, and in previous row pixel unit mostAfter the sub-pixel charging of the latter charging is opened, sub-pixel charging clock signal is continued until that next line pixel unit fills at firstLow and high level switching is carried out again after the sub-pixel charging complete of electricity, therefore can save the height of charging clock signal in the ranksLevel switching times.Control the sub-pixel of the last one charging and the filling at first for next sub- drive cycle of previous sub- drive cycleAfter the display color of the sub-pixel of electricity is identical, and the sub-pixel charging of the last one charging of previous sub- drive cycle is opened, sonPixel charging clock signal carries out height after being continued until the sub-pixel charging complete that next sub- drive cycle charges at first againLow level switching, therefore the low and high level switching times of charging clock signal in the ranks can also be saved.Averagely arrive every a line pictureIn plain unit charging process, every row pixel unit can reduce the low and high level switching of 2 charging clock signals.In addition, this hairThe multiple selector that bright embodiment provides controls every N frame and shows that image is a drive cycle, and in each drive cycle, every N frameDisplay image is a drive cycle；Wherein in each drive cycle, each frame shows the sub- drive cycle the first row pixel unit of imageThe display color of the sub-pixel to charge at first respectively corresponds the display color of N number of sub-pixel of each pixel unit, and each frame is shownThe display color for the sub-pixel that sub- the second row of the drive cycle pixel unit of image charges at first respectively corresponds the N of each pixel unitThe display color of a sub-pixel.So the corresponding omission of N number of sub-pixel of pixel unit is in the ranks charged in a drive cycleThe number of clock signal low and high level switching is identical, i.e., due to the low and high level switching for omitting charging clock signal, N number of different sonsThe effect of pixel charging voltage on the whole is identical.So in statistical significance, the charging situation phase of N number of different subpixelTogether, therefore the embodiment of the present invention can also improve display effect, avoid the occurrence of on the basis of reducing display panel power consumptionColor offset phenomenon caused by sub-pixel charging is uneven.
Illustratively, Fig. 7 is a kind of structural schematic diagram of multiple selector provided in an embodiment of the present invention.As shown in fig. 7,Multiple selector has the charging clock signal input part of multiple and different display colors, for receiving a variety of display colors respectivelyCharging clock signal CKHA1, CKHA2, CKHA3 ...；Multiple signal input part SC1、SC2……SCK, for receiving image letterNumber voltage.The data line S of its output end and a plurality of transmission data-signal1、S2、……、SMConnection, every data line SMFor a columnSub-pixel provides data-signal.Wherein, M is the quantity of the data line of display panel, and M and K are positive integer, and K < M.
On the basis of the above embodiments, optionally, multiple selector provided in an embodiment of the present invention can be includingThe circuit framework of NMOS tft can also be the circuit framework including PMOS thin film transistor (TFT).If multiple selector isCircuit framework including NMOS tft, or the circuit framework including PMOS thin film transistor (TFT), then multi-path choiceDevice can in by charging clock signal CKHA1, CKHA2 of a variety of display colors, CKHA3 ... in controlling the display panel it is eachThe charging order of sub-pixel averagely arrives every row pixel unit, it is possible to reduce the low and high level switching of 2 charging clock signals.
In other embodiments, multiple selector provided in an embodiment of the present invention can also be including NMOS film crystalThe circuit framework of pipe and PMOS thin film transistor (TFT), then multiple selector needs the charging clock signal by a variety of display colorsCKHA1, CKHA2, CKHA3 ... and a variety of display colors reverse charging clock signal XCKHA1, XCKHA2,XCKHA3 ... the charging order of each sub-pixel in co- controlling display panel averagely arrives every row pixel unit, it is possible to reduce 4The low and high level of secondary charging clock signal switches.
Illustratively, Fig. 8 is provided in an embodiment of the present invention a kind of including NMOS tft and PMOS film crystalThe structural schematic diagram of the multiple selector of pipe circuit framework.Unlike Fig. 7, input terminal is also used to receive respectively a variety of aobviousShow reverse charging clock signal XCKHA1, XCKHA2 of color, XCKHA3 ....
Optionally, the multiple selector can control the corresponding N number of sub-pixel of adjacent rows pixel unit charging it is suitableSequence is opposite.
It should be noted that of the sub-pixel for the different display colors that the embodiment of the present invention includes to each pixel unitNumber is without limitation.Optionally, each pixel unit includes the first display color sub-pixel, the second display color sub-pixel and thirdDisplay color sub-pixel.
Further, if each pixel unit includes the first display color sub-pixel, the second display color sub-pixel and theThree display color sub-pixels, it includes that first frame shows image, the second frame that the multiple selector, which can control each drive cycle,Show that image and third frame show image；
First frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is successively to open the first display color sub-pixel, the second display color sub-pixel and third display color sub-pixel, rear a lineThe charging order of pixel unit is successively to open third display color sub-pixel, the second display color sub-pixel and the first display faceSub-pixels；Or the charging order of previous row pixel unit is successively to open third display color sub-pixel, the second display colorSub-pixel and the first display color sub-pixel, the charging order of rear one-row pixels unit are successively to open the first display color pictureElement, the second display color sub-pixel and third display color sub-pixel；
Second frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is successively to open the second display color sub-pixel, third display color sub-pixel and the first display color sub-pixel, rear a lineThe driver' s timing of pixel unit is successively to open the first display color sub-pixel, third display color sub-pixel and the second display faceSub-pixels；Or, the charging order of previous row pixel unit is successively to open the first display color sub-pixel, third display colorSub-pixel and the second display color sub-pixel, the charging order of rear one-row pixels unit are successively to open the second display color pictureElement, third display color sub-pixel and the first display color sub-pixel；
Third frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is successively to open third display color sub-pixel, the first display color sub-pixel and the second display color sub-pixel, rear a lineThe charging order of pixel unit is successively to open the second display color sub-pixel, the first display color sub-pixel and third to show faceSub-pixels；Or, the charging order of previous row pixel unit is successively to open the second display color sub-pixel, the first display colorSub-pixel and third display color sub-pixel, the charging order of rear one-row pixels unit are successively to open third display color pictureElement, the first display color sub-pixel and the second display color sub-pixel.
Optionally, the display color of the first display color sub-pixel is red, the second display color sub-pixelDisplay color be green, the display color of the third display color sub-pixel is blue.
In other embodiments, each pixel unit may include the first display color sub-pixel, the second display colorSub-pixel, third display color sub-pixel and the 4th display color sub-pixel.
Further, if each pixel unit includes the first display color sub-pixel, the second display color sub-pixel, thirdDisplay color sub-pixel and the 4th display color sub-pixel, it includes first that the multiple selector, which can control each drive cycle,Frame shows that image, the second frame show that image, third frame show that image and the 4th frame show image；
First frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is to first turn on the first display color sub-pixel, finally opens the 4th display color sub-pixel, and rear one-row pixels unit is filledElectric sequence finally opens the first display color sub-pixel to first turn on the 4th display color sub-pixel；Or, previous row pixel listThe charging order of member is to first turn on the 4th display color sub-pixel, finally opens the first display color sub-pixel, rear a line pictureThe charging order of plain unit is to first turn on the first display color sub-pixel, finally opens the 4th display color sub-pixel；
Second frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is to first turn on the second display color sub-pixel, finally opens the first display color sub-pixel, rear one-row pixels unit is filledElectric sequence finally opens the second display color sub-pixel to first turn on the first display color sub-pixel；Or, previous row pixel listThe charging order of member is to first turn on the first display color sub-pixel, finally opens the second display color sub-pixel, rear a line pictureThe charging order of plain unit is to first turn on the second display color sub-pixel, finally opens the first display color sub-pixel；
Third frame shows in image that every two rows pixel unit is a sub- drive cycle, and the charging of previous row pixel unit is suitableSequence is to first turn on third display color sub-pixel, finally opens the second display color sub-pixel, rear one-row pixels unit is filledElectric sequence finally opens third display color sub-pixel to first turn on the second display color sub-pixel；Or, previous row pixel listThe charging order of member is to first turn on the second display color sub-pixel, finally opens third display color sub-pixel, rear a line pictureThe charging order of plain unit is to first turn on third display color sub-pixel, finally opens the second display color sub-pixel；
4th frame shows that image, every two rows pixel unit are a sub- drive cycle, the charging order of previous row pixel unitTo first turn on the 4th display color sub-pixel, third display color sub-pixel, the charging of rear one-row pixels unit are finally openedSequence finally opens the 4th display color sub-pixel to first turn on third display color sub-pixel；Or, previous row pixel unitCharging order be first turn on third display color sub-pixel, finally open the 4th display color sub-pixel, rear one-row pixelsThe charging order of unit is to first turn on the 4th display color sub-pixel, finally opens third display color sub-pixel.
Optionally, the display color of the first display color sub-pixel is red, the second display color sub-pixelDisplay color be green, the display color of the third display color sub-pixel is blue, the 4th display color pictureThe display color of element is white.
For including the identical sub-pixel of multiple display colors, multichannel provided in an embodiment of the present invention in each pixel unitSelector equally may be implemented to reduce the effect of display panel power consumption.The identical sub-pixel of multiple display colors need to only be regarded asThe sub-pixel of multiple and different display colors.Such as human eye is most sensitive to green, and 2 sub- pictures in each pixel unit are arrangedThe display color of element is green, and the display color of other two sub-pixel is respectively red and blue.It only need to be by 2 display colorsRegard the sub-pixel of different display colors as the sub-pixel of green.Such as by display color in each pixel unit be it is redThe sub-pixel of color is denoted as the first display color sub-pixel A1；The sub-pixel that display color in each pixel unit is blue is denoted as4th display color sub-pixel A4；The sub-pixel that 2 display colors in each pixel unit are green is denoted as second respectivelyDisplay color sub-pixel A2 and third display color sub-pixel A3.If the display color of the second display color sub-pixel A2 is firstGreen, the display color of the third display color sub-pixel A3 are the second green.The method of multiple selector specifically drivenAnd timing may refer to the description of Fig. 5 or Fig. 6.
The embodiment of the present invention also provides a kind of display panel.Fig. 9 is a kind of display panel provided in an embodiment of the present inventionStructural schematic diagram.As shown in figure 9, display panel provided in an embodiment of the present invention includes multi-path choice described in the various embodiments described aboveDevice 10.
Display panel provided in this embodiment, due to use the various embodiments described above multiple selector, have withThe identical beneficial effect of the multiple selector can also improve display effect on the basis of reducing display panel power consumptionFruit avoids the occurrence of color offset phenomenon caused by sub-pixel charging unevenness.It should be noted that display surface provided in an embodiment of the present inventionPlate can also include the circuit and device that other are used to that it to be supported to work normally.Above-mentioned display panel can be mobile phone, plateOne of computer, Electronic Paper, digital photo frame.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art thatThe invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present inventionIt is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, alsoIt may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.