CN106297723A - A kind of pixel-driving circuit, display floater and image element driving method - Google Patents
A kind of pixel-driving circuit, display floater and image element driving method Download PDFInfo
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- CN106297723A CN106297723A CN201610986442.7A CN201610986442A CN106297723A CN 106297723 A CN106297723 A CN 106297723A CN 201610986442 A CN201610986442 A CN 201610986442A CN 106297723 A CN106297723 A CN 106297723A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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Abstract
The present invention provides a kind of pixel-driving circuit, display floater and image element driving method, for driving pel array, pel array includes multiple pixel, each pixel all includes the first sub-pixel being respectively provided with storage capacitors, second sub-pixel and the 3rd sub-pixel, adjacent sub-pixel opposite polarity in the row direction, pixel-driving circuit includes multiple first switching device, first switching device includes input, outfan and control end, the input of the first switching device and outfan are electrically connected and are positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.When driving the first sub-pixel of current scan list by the first switch device conductive, so that the second sub-pixel and the 3rd sub-pixel voltage are average, reach the effect of precharge, reduce the charging interval generally, and reduce power consumption.
Description
Technical field
The present invention relates to lcd technology, particularly relate to a kind of pixel-driving circuit, include this pixel-driving circuit
Display floater and image element driving method.
Background technology
At present, liquid crystal display (LCD, Liquid Crystal Display) is widely used in various electronics and sets
Standby.The display floater of LCD is generally made up of the pel array including multiple pixel, generally includes again many height in each pixel
Pixel.When being charged sub-pixel, thin film transistor (TFT) (TFT) corresponding for this sub-pixel is led by the grid line first passing through correspondence
Logical, then make data wire this sub-pixel apply display voltage with charging by conducting switching device.Storage when sub-pixel
After electric capacity is fully charged, even if TFT disconnects, due to the display voltage in storage electric capacity, sub-pixel still can stably work.
Along with the raising of the PPI (pixels per inch, the number of pixels of per inch) of LCD, and refreshing frequency carries
Height, the ON time of TFT reduces, so that the charging interval of pixel is constantly reducing.Certain journey it is reduced between when charging
When spending, arise that the situation of undercharge, cause brightness to decline, show unequal series of problems.
Summary of the invention
It is an object of the invention to provide a kind of pixel-driving circuit, display floater and image element driving method, effectively contract
Short pixel charging time, reduces power consumption, thus is applicable to the product of high PPI or high refreshing frequency,
For achieving the above object, according to first aspect of the present invention, it is provided that a kind of pixel-driving circuit, it is used for driving pixel
Array, pel array includes that multiple pixel, each pixel all include being respectively provided with the first sub-pixel of storage capacitors, the second sub-picture
Element and the 3rd sub-pixel, adjacent sub-pixel opposite polarity in the row direction, pixel-driving circuit includes multiple first switching device,
First switching device includes input, outfan and control end, and input and the outfan of the first switching device are electrically connected
It is positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.
According to second aspect of the present invention, it is provided that a kind of display floater, including: multiple pixels, each pixel includes multiple
Sub-pixel；The pixel-driving circuit of above-mentioned first aspect.
According to third aspect of the present invention, it is provided that a kind of image element driving method, it is used for driving pel array, pel array bag
Including multiple pixel, each pixel all includes being respectively provided with the first sub-pixel of storage capacitors, the second sub-pixel and the 3rd sub-pixel,
Adjacent sub-pixel opposite polarity in the row direction, drive current scan list the first sub-pixel time, by next scan columns with
Second sub-pixel and threeth sub-pixel gone together opposite polarity with the second sub-pixel of the first sub-pixel colleague carry out electric charge altogether
Enjoy, the voltage on the second sub-pixel and the 3rd respective storage capacitors of sub-pixel is averaged.
Compared with prior art, the pixel-driving circuit of the present invention, display floater and image element driving method at least have
Following beneficial effect:
The present invention is by when driving the first sub-pixel, entering opposite polarity for colleague the second sub-pixel and the 3rd sub-pixel
Row electric charge is shared, and to be averaged by the voltage on the second sub-pixel and the 3rd respective storage capacitors of sub-pixel, thus reaches
The effect of precharge, is effectively shortened pixel charging time, reduces power consumption, and then ensured display effect, can be suitably used for
The product of high PPI or high refreshing frequency.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the display floater of first embodiment of the invention；
Fig. 2 is the pixel-driving circuit schematic diagram of second embodiment of the invention；
Fig. 3 is the pixel-driving circuit schematic diagram of third embodiment of the invention；
Fig. 4 is the pixel-driving circuit schematic diagram of fourth embodiment of the invention；
Fig. 5 is the sequential chart of the pixel-driving circuit horizontal clock signal of first embodiment of the invention；
Fig. 6 is the change in voltage sequential chart of the different subpixel charging of first embodiment of the invention；
Fig. 7 is the sequential chart of the pixel-driving circuit horizontal clock signal of second embodiment of the invention；
Fig. 8 is different subpixel horizontal clock signal pulsewidth contrast table of the present invention；
Fig. 9 is the pixel-driving circuit schematic diagram of the present invention one variant embodiment；
Figure 10 is the pixel-driving circuit schematic diagram of another variant embodiment of the present invention；
Figure 11 is the pixel-driving circuit schematic diagram of another variant embodiment of the present invention；
Figure 12 is the pixel-driving circuit schematic diagram of another variant embodiment of the present invention.
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can be with multiple shape
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, it is provided that these embodiments make the present invention more
Fully and completely, and by the design of example embodiment those skilled in the art is conveyed to all sidedly.The most identical is attached
Figure labelling represents same or similar structure, thus will omit repetition thereof.
Fig. 1 is the circuit diagram of the display floater of first embodiment of the invention, as it is shown in figure 1, display floater 1 includes many
Individual pixel 11, each pixel 11 includes multiple sub-pixel 101,102,103, multiple sub-pixels 101,102,103 composition pixel battle array
Row, pel array is driven by pixel-driving circuit.
In the present embodiment, each pixel 11 is by the first sub-pixel the 101, second sub-pixel 102 and the 3rd sub-pixel 103
Composition, in other are implemented, each pixel 11 can comprise more than three sub-pixels, such as, include four sub-pixels or more,
Repeat the most one by one at this, or the adjacent public sub-pixel of pixel 11 and less than three sub-pixels in each pixel 11.The
One sub-pixel the 101, second sub-pixel 102 and the 3rd sub-pixel 103 are respectively provided with storage capacitors.
The display floater 1 of the present invention uses row upset or the display pattern of some upset, i.e. adjacent in pel array
Pixel 101,102,103 in the row direction in opposite polarity, i.e. the present embodiment, when as the storage capacitors storage of the first sub-pixel 101
During positive voltage, the storage capacitors of the second sub-pixel 102 being adjacent storage negative voltage, adjacent with the second sub-pixel 102 the
Three sub-pixel 103 storage capacitors storage positive voltages.
Pixel-driving circuit includes data driver 2 and scanner driver 3.Scanner driver 3 will be every by grid line 31
The TFT conducting of a line sub-pixel 101,102,103 correspondence.Data driver 2 connects data wire 21, and data wire 21 passes through derailing switch
Part 41,42,43,44 connexon pixels 101,102,103, by horizontal clock signal (CKH1, CKH2, CKH3) to switching device
41,42,43,44 carry out on-off control, thus when switching device 41,42,43,44 turns on, sub-pixel 101,102,103 store
Electric capacity is pre-charged or charges.
Specifically, Fig. 5 is the sequential chart of the pixel-driving circuit horizontal clock signal of first embodiment of the invention, in conjunction with
The pixel-driving circuit of Fig. 1 and Fig. 5 the present embodiment includes that many first data wires 21, every first data wire 21 connect respectively
The first sub-pixel the 101, second sub-pixel 102 and the 3rd sub-pixel 103 in same pixel.
Pixel-driving circuit also includes multiple first switching device 41, multiple second switch device 42, multiple 3rd switch
Device 43 and multiple 4th switching device 44.
First switching device 41 includes input, outfan and control end.The input of the first switching device 41 and output
End is electrically connected and is positioned at same a line, opposite polarity second sub-pixel 102 and the 3rd sub-pixel 103.In the present embodiment,
The input of the first switching device 41 and outfan connect the second sub-pixel 102 and the 3rd sub-pixel of same pixel 11 respectively
103。
The control end of the first switching device 41 connects the first control lead-in wire, thus it is horizontal to obtain first from the first control lead-in wire
Clock signal CKH1.When current scan list is to the first sub-pixel 101, the first horizontal clock signal CKH1 saltus step is high level, the
One switching device 41 turns on, so that the second sub-pixel 102 and the 3rd gone together with the first sub-pixel 101 in next scan columns
Sub-pixel 103 carries out electric charge to be shared, and is entered by the voltage in the second sub-pixel 102 and the 3rd respective storage capacitors of sub-pixel 103
Row is average, to reach the effect of precharge.
Each second switch device 42 includes input, outfan and control end, the input of second switch device 42 and
Outfan is electrically connected the first sub-pixel 101 and the first data wire 21, and the control end of second switch device 42 connects the first control
Making line, thus control lead-in wire from first and obtain the first horizontal clock signal CKH1.Current scan list is to the first sub-pixel 101
Time, the first horizontal clock signal CKH1 saltus step is high level, and second switch device 42 turns on.When pulse width time terminates, first is horizontal
Recovering low level to clock signal CKH1, second switch device 42 ends.
Each 3rd switching device 43 includes input, outfan and control end, the input of the 3rd switching device 43 and
Outfan is electrically connected the second sub-pixel 102 and the first data wire 21, and the control end of the 3rd switching device 43 connects the second control
Making line, thus control lead-in wire from second and obtain the second horizontal clock signal CKH2.Current scan list is to the second sub-pixel 102
Time, the second horizontal clock signal CKH2 saltus step is high level, and the 3rd switching device 43 turns on.When pulse width time terminates, second is horizontal
Recovering low level to clock signal CKH2, the 3rd switching device 43 ends.
Each 4th switching device 44 includes input, outfan and control end, the input of the 4th switching device 44 and
Outfan connects the 3rd sub-pixel 103 and the first data wire 21 respectively, and the control end of the 4th switching device 44 connects the 3rd control
Lead-in wire, thus control lead-in wire from the 3rd and obtain the 3rd horizontal clock signal CKH3.When current scan list is to three sub-pixels 103,
3rd horizontal clock signal CKH3 saltus step is high level, and the 4th switching device 44 turns on.When pulse width time terminates, the 3rd laterally time
Clock signal CKH3 recovers low level, and the 4th switching device 44 ends.
The change in voltage sequential chart of the different subpixel charging of Fig. 6 first embodiment of the invention, wherein A represents the first sub-picture
The timing variations of voltage in the storage capacitors of element 101, B represents the timing variations of voltage in the storage capacitors of the second sub-pixel 102,
C represents the timing variations of voltage in the storage capacitors of the 3rd sub-pixel 103.In conjunction with Fig. 5 and Fig. 6, drive the of current scan list
During one sub-pixel 101, i.e. when the first clock signal CKH1 saltus step is high level, the first switching device 41 and second switch device
42 simultaneously turn on, therefore when the first sub-pixel 101 is electrically charged, and the second sub-pixel 102 and the 3rd sub-pixel of next scan columns
103 due to opposite polarity average voltage, thus magnitude of voltage reaches pre-charge voltage from primary voltage value (-5v or+5v) respectively
Value 0v.Instantly when one scan row drive, the first clock signal CKH1 recovers low level, and second clock signal CKH2 saltus step is high electricity
Flat, the second sub-pixel 102 is charged to target voltage values+5v.When second clock signal CKH2 recovers low level, the 3rd clock letter
When number CKH3 saltus step is high level, the 3rd sub-pixel 103 is charged to target voltage values-5V.By such precharge so that
Driving time required for second sub-pixel 102 and the 3rd sub-pixel 103 is greatly shortened, thus is effectively shortened on the whole
The pixel driver time.
It should be noted that in the present embodiment, the numerical value that+5v in figure 6,0v and-5v are simply schematically given, tool
Body, the voltage of other numerical values recited can be applied according to different product types and feature, do not limits at this.
Also, it should be noted in the present embodiment, the first clock signal CKH1 corresponding to Fig. 5, second clock signal
CKH2 and the 3rd clock signal CKH3 are when saltus step is high level, for useful signal, the most corresponding derailing switch
Part (TFT) is in opening.But, for the first switching device 41 in Fig. 1, second switch device the 42, the 3rd derailing switch
The type of the TFT of part 43 and the first switching device 44 does not limits, can be N-type transistor can also be P-type transistor.Just as
Foregoing teachings is sayed, when the first switching device 41 corresponding in Fig. 1, second switch device 42, the 3rd switching device 43 and the
When the type of the TFT of one switching device 44 is P-type transistor, the first clock signal CKH1 corresponding to Fig. 5, second clock signal
CKH2 and the 3rd clock signal CKH3 are when saltus step is low level, for useful signal；When the first switching device corresponding in Fig. 1
41, when the type of the TFT of second switch device the 42, the 3rd switching device 43 and the first switching device 44 is N-type transistor, Fig. 5
Corresponding the first clock signal CKH1, second clock signal CKH2 and the 3rd clock signal CKH3 when saltus step is high level,
For useful signal.About type and the corresponding useful signal of switching device, it is equally applicable to subsequent embodiment, at this
And subsequent embodiment repeats no more.
Owing to precharge makes the driving time of the second sub-pixel 102 or the 3rd sub-pixel 103 shorten, cause the first sub-picture
Element 101 is inconsistent with the charging ability of the second sub-pixel 102 or the 3rd sub-pixel 103, therefore to keep sub-pixel charging energy
Power is consistent, and the driving time of the charging interval of the first sub-pixel 101 and the second sub-pixel 102 or the 3rd sub-pixel 103 can not
With, the pulse width time of the i.e. first clock signal CKH1, second clock signal CKH2 and the 3rd clock signal CKH3 is different.
Fig. 8 is different subpixel horizontal clock signal pulsewidth contrast table of the present invention, as shown in Figure 8, as one alternatively
Embodiment, is optimized calculating according to target voltage values and each sub-pixel Simulation drive time.At CKH1=CKH2=
During 0.9us, the voltage of the first sub-pixel 101 is 3.53v, less than the voltage 3.66v of the second sub-pixel 102.When CKH1 increases
When 11%, i.e. CKH1=1.0us, the voltage of the first sub-pixel 101 is 3.63v, with the voltage 3.66v phase of the second sub-pixel 102
When.When CKH1 increases by 22%, i.e. CKH1=1.1us, the voltage of the first sub-pixel 101 is that 3.72v has exceeded the second sub-pixel
The voltage 3.66v of 102.According to this as a result, it is possible to estimate, when CKH1 increases by 10%～15%, the electricity of the first sub-pixel 101
The voltage of pressure and the second sub-pixel 102 is suitable.Therefore, by the driving time of the first sub-pixel 101 than the second sub-pixel 102 or the
The driving time big 10% to 15% of three sub-pixels 103, thus distribute rationally on the whole, when shortening total pixel charging further
Between.
In the present embodiment, the corresponding red sub-pixels of the first sub-pixel 101, the corresponding blue sub-pixel of the second sub-pixel 102, the 3rd son
The corresponding green sub-pixel of pixel 103.In other embodiments, the first sub-pixel 101 can also other color sub-pixels corresponding.
Multiple data wire is had to connect the electric connection mode that multiple sub-pixels are charged, pole of going together provided by the present invention
Property contrary the second sub-pixel and the 3rd sub-pixel carry out the precharge mode that electric charge shares and connect multiple for multiple data wire
The electric connection mode that sub-pixel is charged is the most applicable.To be introduced by different embodiments below.
Fig. 2 is the pixel-driving circuit schematic diagram of second embodiment of the invention.In order to be shown more clearly that inventive point, Fig. 2
Eliminate the parts that the second embodiment is identical with first embodiment, as in figure 2 it is shown, display floater includes multiple first pixel 11 He
Multiple second pixels 12, the second pixel 12 is the most adjacent with the first pixel 11.First pixel 11 includes the first pixel
3rd sub-pixel 103 of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel.Second pixel 12 includes
3rd sub-pixel 106 of second sub-pixel the 105, second pixel of first sub-pixel the 104, second pixel of the second pixel.First
3rd sub-pixel the 103, second pixel of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of pixel
The 3rd sub-pixel 106 of first sub-pixel the 104, second pixel and the second sub-pixel 105 adjacent row successively of the second pixel
Row, and adjacent subpixels opposite polarity in the row direction.Therefrom it is found that the second sub-pixel of adjacent two pixels with a line
Or the 3rd sub-pixel, different relative to the position of the first sub-pixel in same pixel.
Pixel-driving circuit includes data driver (not shown), scanner driver (not shown) equally, multiple first opens
Close device 41, multiple second switch device 42, multiple 3rd switching device 43 and multiple 4th switching device 44.
Pixel-driving circuit includes many first data wires 21, and the first data wire 21 connects respectively and is positioned at the adjacent of same a line
Two pixels 11, first sub-pixel the 101,104, second sub-pixel 102,105 and the three sub-pixel 103,106 in 12.
First switching device 41 includes input, outfan and control end.The input of the first switching device 41 and output
End is electrically connected and is positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.In the present embodiment, first open
The input and the outfan that close device 41 connect the second sub-pixel in same pixel and the 3rd sub-pixel, the i.e. first switch respectively
The input of pipe 41 and outfan connect the second sub-pixel 102 and the 3rd sub-pixel 103 of the first pixel of the first pixel, and first
The input of switching tube 41 and outfan connect the second sub-pixel 105 and the 3rd sub-pixel 106 of the second pixel of the second pixel.
The control end of the first switching device 41 connects the first control lead-in wire, thus it is horizontal to obtain first from the first control lead-in wire
Clock signal CKH1 or the 4th horizontal clock signal CKH4.
Second switch device 42 includes input, outfan and control end, the input of second switch device 42 and output
End is electrically connected the first sub-pixel 101 and the first data wire 21 of the first pixel, or is electrically connected the of the second pixel
One sub-pixel 104 and the first data wire 21.The control end of second switch device 42 connects the first control lead-in wire, thus from the first control
Making line obtains the first horizontal clock signal CKH1 or the 4th horizontal clock signal CKH4.
3rd switching device 43 includes input, outfan and control end, the input of the 3rd switching device 43 and output
End is electrically connected the second sub-pixel 102 and the first data wire 21 of the first pixel, or is electrically connected the of the second pixel
Two sub-pixel 105 and the first data wires 21.The control end of the 3rd switching device 43 connects the second control lead-in wire, thus from the second control
Making line obtains the second horizontal clock signal CKH2 or the 5th horizontal clock signal CKH5.
4th switching device 44 includes input, outfan and control end, the input of the 4th switching device 44 and output
End connects the 3rd sub-pixel 103 and the first data wire 21 of the first pixel respectively, or is electrically connected the 3rd of the second pixel the
Sub-pixel 106 and the first data wire 21.The control end of the 4th switching device 44 connects the 3rd control lead-in wire, thus controls from the 3rd
Lead-in wire obtains the 3rd horizontal clock signal CKH3 or the 6th horizontal clock signal CKH6.
It should be noted that as it is shown in figure 9, in another embodiment deformed, the input in the first switching device and
Outfan connects opposite polarity second sub-pixel in neighbor and the 3rd sub-pixel respectively.I.e. first switching tube 41 defeated
Enter end and outfan connects the second sub-pixel 102 and the 3rd sub-pixel 106 of the second pixel, first switching tube 41 of the first pixel
Input and outfan connect the 3rd sub-pixel 103 and second sub-pixel 105 of the second pixel of the first pixel.Have only to full
The foot input of the first switching device 41 and outfan be electrically connected be positioned at same a line, opposite polarity second sub-pixel with
3rd sub-pixel.
Fig. 7 is the sequential chart of the pixel-driving circuit horizontal clock signal of second embodiment of the invention.As it is shown in fig. 7, depend on
Secondary driving the first horizontal clock signal CKH1, the second horizontal clock signal CKH2, the 3rd horizontal clock signal CKH3, the 4th is horizontal
Clock signal CKH4, the 5th horizontal clock signal CKH5 and the 6th horizontal clock signal CKH6, driving the first horizontal clock
During signal CKH1 or the 4th horizontal clock signal CKH4, simultaneously turn on second switch device 42 and the first switching device 41, with
Carry out in next scan columns with the electric charge of the second sub-pixel and threeth sub-pixel gone together opposite polarity with the second sub-pixel altogether
Enjoy, thus reach the effect of precharge.
It is optimized calculating, by CKH1 and CKH4 also according to target voltage values and each sub-pixel Simulation drive time
Pulse width time relatively other pulse width time increase by 10%～15%, so that the driving time of the first sub-pixel is than the second sub-pixel
Or the 3rd the driving time of sub-pixel increase by 10%～15%, thus keep sub-pixel charging ability consistent, optimize on the whole and join
Put, shorten total pixel charging time further.
Fig. 3 is the pixel-driving circuit schematic diagram of third embodiment of the invention.In order to be shown more clearly that inventive point, Fig. 3
Eliminate the parts that the 3rd embodiment is identical with first embodiment equally, as it is shown on figure 3, in variant embodiment, display floater bag
Including multiple first pixel 11 and multiple second pixel 12, the second pixel 12 is the most adjacent with the first pixel 11.First picture
Element 11 includes the 3rd sub-pixel of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of the first pixel
103.Second pixel 12 includes second sub-pixel the 105, second pixel of first sub-pixel the 104, second pixel of the second pixel
3rd sub-pixel 106.The 3rd of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of the first pixel
3rd sub-pixel 106 of first sub-pixel the 104, second pixel of sub-pixel the 103, second pixel and the second son of the second pixel
Pixel 105 arranged adjacent successively, and adjacent subpixels opposite polarity in the row direction.Therefrom it is found that with adjacent the two of a line
Second sub-pixel of individual pixel or the 3rd sub-pixel, different relative to the position of the first sub-pixel in same pixel.
Pixel-driving circuit includes data driver (not shown), scanner driver (not shown) equally, multiple first opens
Close device 41, multiple second switch device 42, multiple 3rd switching device 43 and multiple 4th switching device 44.
Pixel-driving circuit includes many opposite polarity first data wire 21 and the second data wires 22.First data wire 21
Connect the 3rd sub-pixel 103 and the 3rd sub-picture of the second pixel of first sub-pixel the 101, first pixel of the first pixel respectively
Element 106.Second data wire 22 connect respectively first sub-pixel the 104, second pixel of the second pixel the second sub-pixel 105 and
Second sub-pixel 102 of the first pixel.
First switching device 41 includes input, outfan and control end.The input of the first switching device 41 and output
End is electrically connected and is positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.In the present embodiment, first open
The input and the outfan that close device 41 connect the second sub-pixel in same pixel and the 3rd sub-pixel, the i.e. first switch respectively
The input of pipe 41 and outfan connect the second sub-pixel 102 and the 3rd sub-pixel 103 of the first pixel of the first pixel, and first
The input of switching tube 41 and outfan connect the second sub-pixel 105 and the 3rd sub-pixel 106 of the second pixel of the second pixel.
The control end of the first switching device 41 connects the first control lead-in wire equally, thus controls lead-in wire acquisition first from first
Horizontal clock signal CKH1.
Second switch device 42 includes input, outfan and control end, the input of second switch device 42 and output
End is electrically connected the first sub-pixel 101 and the first data wire 21 of the first pixel, or is electrically connected the of the second pixel
One sub-pixel 104 and the second data wire 22.The control end of second switch device 42 connects the first control lead-in wire, thus from the first control
Making line obtains the first horizontal clock signal CKH1.
3rd switching device 43 includes input, outfan and control end, the input of the 3rd switching device 43 and output
End is electrically connected the second sub-pixel 102 and the second data wire 22 of the first pixel, or is electrically connected the of the second pixel
Three sub-pixel 106 and the first data wires 21.The control end of the 3rd switching device 43 connects the second control lead-in wire, thus from the second control
Making line obtains the second horizontal clock signal CKH2.
4th switching device 44 includes input, outfan and control end, the input of the 4th switching device 44 and output
End connects the 3rd sub-pixel 103 and the first data wire 21 of the first pixel respectively, or is electrically connected the second of the second pixel
Sub-pixel 105 and the second data wire 22.The control end of the 4th switching device 44 connects the 3rd control lead-in wire, thus controls from the 3rd
Lead-in wire obtains the 3rd horizontal clock signal CKH3.
The sequential chart of concrete driving method and pixel-driving circuit horizontal clock signal is identical with first embodiment, this
Place repeats no more.
It should be noted that as shown in Figure 10, in the embodiment of a deformation, input in the first switching device and defeated
Go out end and connect opposite polarity second sub-pixel in neighbor and the 3rd sub-pixel respectively.The input of the i.e. first switching tube 41
End and outfan connect the second sub-pixel 102 and the 3rd sub-pixel 106 of the second pixel of the first pixel, the first switching tube 41
Input and outfan connect the 3rd sub-pixel 103 and second sub-pixel 105 of the second pixel of the first pixel.Have only to meet
The input of the first switching device 41 and outfan are electrically connected and are positioned at same a line, opposite polarity second sub-pixel and
Three sub-pixels.
3rd embodiment again by drive the first sub-pixel time, opposite polarity second sub-pixel and the 3rd of going together
Sub-pixel carries out electric charge to be shared, so that the voltage on the second sub-pixel and the 3rd respective storage capacitors of sub-pixel is averaged,
Thus reach the effect of precharge, it is effectively shortened pixel charging time.
Fig. 4 is the pixel-driving circuit schematic diagram of fourth embodiment of the invention, in order to be shown more clearly that inventive point, and Fig. 4
Eliminating the parts that the 4th embodiment is identical with first embodiment equally, as shown in Figure 4, in the present embodiment, display floater includes
Multiple first pixels 11, multiple second pixel 12, multiple 3rd pixels 13 and multiple 4th pixel 14, the first pixel 11,
Two pixel the 12, the 3rd pixel 13 and the 4th pixel 14 arranged adjacent the most successively.First pixel 11 includes the first picture
3rd sub-pixel 103 of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of element.Second pixel 12
The 3rd sub-pixel 106 of second sub-pixel the 105, second pixel including first sub-pixel the 104, second pixel of the second pixel.
3rd pixel 13 includes the 3rd of the second sub-pixel the 108, the 3rd pixel of the first sub-pixel the 107, the 3rd pixel of the 3rd pixel
Sub-pixel 109.4th pixel 14 includes the second sub-pixel the 111, the 4th of the first sub-pixel the 110, the 4th pixel of the 4th pixel
3rd sub-pixel 112 of pixel.Second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of the first pixel
The 3rd sub-pixel the 103, second pixel first sub-pixel the 104, second pixel the 3rd sub-pixel the 106, second pixel
3rd son of the second sub-pixel the 108, the 3rd pixel of the first sub-pixel the 107, the 3rd pixel of two sub-pixel the 105, the 3rd pixels
Second sub-pixel of the 3rd sub-pixel the 112, second pixel of the first sub-pixel the 110, the 4th pixel of pixel the 109, the 4th pixel
111 arranged adjacent successively, and adjacent subpixels opposite polarity in the row direction.Therefrom it is found that with adjacent two pictures of a line
Second sub-pixel of element or the 3rd sub-pixel, different relative to the position of the first sub-pixel in same pixel.
Pixel-driving circuit includes data driver (not shown), scanner driver (not shown) equally, multiple first opens
Close device 41, multiple second switch device 42, multiple 3rd switching device 43 and multiple 4th switching device 44.
Pixel-driving circuit includes many opposite polarity first data wire 21 and the second data wires 22.First data wire 21
Connect the 3rd sub-pixel of second sub-pixel the 102, first pixel of first sub-pixel the 101, first pixel of the first pixel respectively
103, the 3rd sub-pixel 106 of first sub-pixel the 104, second pixel of the second pixel and the second sub-pixel of the second pixel
105.Second data wire 22 connects the second sub-pixel the 108, the 3rd of the first sub-pixel the 107, the 3rd pixel of the 3rd pixel respectively
3rd sub-pixel 112 and the second picture of the first sub-pixel the 110, the 4th pixel of the 3rd sub-pixel the 109, the 4th pixel of pixel
Second sub-pixel 111 of element.
First switching device 41 includes input, outfan and control end.The input of the first switching device 41 and output
End is electrically connected and is positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.In the present embodiment, first open
The input and the outfan that close device 41 connect the second sub-pixel in spaced pixels and the 3rd sub-pixel, the i.e. first switch respectively
The input of pipe 41 and outfan connect the second sub-pixel 102 and the 3rd sub-pixel 109 of the 3rd pixel of the first pixel, and first
The input of switching tube 41 and outfan connect the 3rd sub-pixel 103 and second sub-pixel 108 of the 3rd pixel of the first pixel,
The input of the first switching tube 41 and outfan connect the 3rd sub-pixel 106 and the second sub-pixel of the 4th pixel of the second pixel
111, the input of the first switching tube 41 and outfan connect the second sub-pixel 105 of the second pixel and the 3rd son of the 4th pixel
Pixel 112.
It should be noted that as shown in figure 11, in the embodiment of a deformation, input in the first switching device and defeated
Go out end and connect opposite polarity second sub-pixel in same pixel and the 3rd sub-pixel respectively.The input of the i.e. first switching tube 41
End and outfan connect the second sub-pixel 102 and the 3rd sub-pixel 103 of the first pixel of the first pixel, the first switching tube 41
Input and outfan connect the second sub-pixel 105 and the 3rd sub-pixel 106 of the second pixel, first switching tube of the second pixel
The input of 41 and outfan connect the second sub-pixel 108 and the 3rd sub-pixel 109 of the 3rd pixel of the 3rd pixel, and first opens
Close input and second sub-pixel 111 and the 3rd sub-pixel 112 of the 4th pixel of outfan connection the 4th pixel of pipe 41.
As shown in figure 12, in another embodiment deformed, input and outfan in the first switching device connect respectively
Connect opposite polarity second sub-pixel in neighbor and the 3rd sub-pixel.The input of the i.e. first switching tube 41 and outfan
Connect the second sub-pixel 102 and the 3rd sub-pixel 106 of the second pixel of the first pixel, the input of the first switching tube 41 and defeated
Go out end and connect the 3rd sub-pixel 103 and the second sub-pixel 105 of the second pixel, the input of the first switching tube 41 of the first pixel
With the second sub-pixel 108 and the 3rd sub-pixel 112 of the 4th pixel that outfan connects the 3rd pixel, the first switching tube 41 defeated
Enter end and the 3rd sub-pixel 109 of outfan connection the 3rd pixel and the second sub-pixel 111 of the 4th pixel.
In addition there is also the connected mode of other deformation, it is only necessary to meet the input of the first switching device 41 and defeated
Go out end to be electrically connected and be positioned at same a line, opposite polarity second sub-pixel and the 3rd sub-pixel.
The control end of the first switching device 41 connects the first control lead-in wire equally, thus controls lead-in wire acquisition first from first
Horizontal clock signal CKH1 or the 4th clock signal CKH4.
Second switch device 42 includes input, outfan and control end, the input of second switch device 42 and output
End is electrically connected the first sub-pixel 101 and the first data wire 21 of the first pixel, or is electrically connected the of the second pixel
One sub-pixel 104 and the first data wire 21, or it is electrically connected the first sub-pixel 107 and the second data wire of the 3rd pixel
22, or it is electrically connected the first sub-pixel 110 and the second data wire 22 of the 4th pixel.The control end of second switch device 42
Connect the first control lead-in wire, thus control lead-in wire from first and obtain the first horizontal clock signal CKH1 or the 4th clock signal
CKH4。
3rd switching device 43 includes input, outfan and control end, the input of the 3rd switching device 43 and output
End is electrically connected the second sub-pixel 102 and the first data wire 21 of the first pixel, or is electrically connected the of the second pixel
Three sub-pixel 106 and the first data wires 21, or it is electrically connected the second sub-pixel 108 and the second data wire of the 3rd pixel
22, or it is electrically connected the 3rd sub-pixel 112 and the second data wire 22 of the 4th pixel.The control end of the 3rd switching device 43
Connect the second control lead-in wire, thus control lead-in wire from second and obtain the second horizontal clock signal CKH2 or the 5th clock signal
CKH5。
4th switching device 44 includes input, outfan and control end, the input of the 4th switching device 44 and output
End connects the 3rd sub-pixel 103 and the first data wire 21 of the first pixel respectively, or is electrically connected the second of the second pixel
Sub-pixel 105 and the first data wire 21, or it is electrically connected the 3rd sub-pixel 109 and the second data wire 22 of the 3rd pixel,
Or it is electrically connected the second sub-pixel 111 and the second data wire 22 of the 4th pixel.The control end of the 4th switching device 44 is even
Connect the 3rd control lead-in wire, thus control lead-in wire from the 3rd and obtain the 3rd horizontal clock signal CKH3 or the 6th clock signal CKH6.
Concrete driving method and the sequential chart of pixel-driving circuit horizontal clock signal and the second embodiment are identical, this
Place repeats no more.
Present invention also offers a kind of image element driving method, be used for driving pel array, coordinate introduction in above-mentioned enforcement
Display floater 1, when driving the first sub-pixel of current scan list, by go together with described first sub-pixel in next scan columns
Second sub-pixel and threeth sub-pixel gone together opposite polarity with described second sub-pixel carry out electric charge to be shared, by described second
Voltage on sub-pixel and the 3rd respective storage capacitors of sub-pixel is averaged, and has arrived the effect of precharge, thus effectively
Shorten the charging interval, reduce power consumption.
According to emulation testing, use pixel-driving circuit and the display floater of image element driving method of the present invention, than
Prior art can shorten the charging interval significantly, such as, for the display floater of FHD type, the charging interval is about 0.848us,
0.011us is reduced than the 0.859us of prior art；For the display floater of WQHD type, the charging interval is about 0.828us, than
The 1.175us of prior art reduces 0.347us；For the display floater of 4K2K type, the charging interval is than prior art
1.181us reduce 0.373us.Even if in the case of same undercharge, use pixel-driving circuit and the picture of the present invention
In the display floater of element driving method, sub-pixel voltage is also higher than prior art sub-pixel voltage.By above real
Executing example and variant embodiment understands, the pixel-driving circuit of the present invention, display floater and image element driving method, by first
Switching device connects opposite polarity second sub-pixel and the 3rd sub-pixel of next scan columns, thus is driving Current Scan
By the first switch device conductive during the first sub-pixel arranged, so that the second sub-pixel and the 3rd sub-pixel voltage are average,
Reach the effect of precharge, thus reduce the charging interval generally, and reduce power consumption.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to be interpreted as limitation of the present invention, between embodiment can reference mutually, the different technologies feature between embodiment is permissible
Be mutually combined, those of ordinary skill in the art in the case of without departing from the principle of the present invention and objective in the scope of the present invention
In above-described embodiment can be changed, revise, replace and modification.
Claims (13)
1. a pixel-driving circuit, is used for driving pel array, it is characterised in that
Described pel array include multiple pixel, each described pixel all include being respectively provided with storage capacitors the first sub-pixel,
Second sub-pixel and the 3rd sub-pixel, adjacent described sub-pixel opposite polarity in the row direction,
Described pixel-driving circuit include multiple first switching device, described first switching device include input, outfan and
Control end, the input of described first switching device and outfan be electrically connected be positioned at same a line, opposite polarity second
Sub-pixel and the 3rd sub-pixel.
2. pixel-driving circuit as claimed in claim 1, it is characterised in that
When driving the first sub-pixel of current scan list, with described first in described next scan columns of first switch device conductive
Second sub-pixel of sub-pixel colleague and the 3rd sub-pixel carry out electric charge to be shared, by each to described second sub-pixel and the 3rd sub-pixel
From storage capacitors on voltage be averaged.
3. pixel-driving circuit as claimed in claim 1, it is characterised in that also include: multiple second switch devices；
Described second switch device includes input, outfan and control end, the input of described second switch device and output
End is electrically connected described first sub-pixel and a data wire, the control end of described first switching device and described second switch device
The control end of part is all connected with one first control lead-in wire.
4. as claimed in claim 1 pixel-driving circuit, it is characterised in that also include: multiple 3rd switching devices and multiple the
Four switching devices；
Described 3rd switching device includes input, outfan and control end, the input of described 3rd switching device and output
End is electrically connected described second sub-pixel and a data wire or is electrically connected described 3rd sub-pixel and a data wire, described
The control end of the 3rd switching device connects one second control lead-in wire；
Described 4th switching device includes input, outfan and control end, the input of described 4th switching device and output
End connects described 3rd sub-pixel and a data wire respectively or is electrically connected described second sub-pixel and a data wire, and described the
The control end of four switching devices connects one the 3rd control lead-in wire.
5. as claimed in claim 1 pixel-driving circuit, it is characterised in that include many first data wires, every described first
Data wire connects the first sub-pixel in same pixel, the second sub-pixel and the 3rd sub-pixel respectively,
The input of described first switching device and outfan connect the second sub-pixel and the 3rd sub-pixel of same pixel respectively.
6. as claimed in claim 1 pixel-driving circuit, it is characterised in that include many first data wires, every described first
Data wire connects the first sub-pixel in adjacent two the described pixels being positioned at same a line, the second sub-pixel and the 3rd son respectively
Pixel,
Input and outfan in described first switching device connect the second sub-pixel in same pixel and the 3rd son respectively
The second sub-pixel in pixel or neighbor and the 3rd sub-pixel.
7. as claimed in claim 1 pixel-driving circuit, it is characterised in that include many opposite polarity first data wires and the
Two data wires, described pixel includes that multiple first pixel and multiple second pixel, described second pixel and described first pixel exist
On line direction adjacent；
Described first data wire connects the first sub-pixel in described first pixel, the 3rd sub-pixel and described second picture respectively
Second sub-pixel of element,
Described second data wire connects the first sub-pixel in described second pixel, the 3rd sub-pixel and described first picture respectively
The second sub-pixel in element,
Input and outfan in described first switching device connect the second sub-pixel in same pixel and the 3rd son respectively
The second sub-pixel in pixel or neighbor and the 3rd sub-pixel.
8. as claimed in claim 1 pixel-driving circuit, it is characterised in that include many opposite polarity first data wires and the
Two data wires, described pixel includes multiple first pixel, multiple second pixel, multiple 3rd sub-pixel and multiple 4th sub-picture
Element, described first pixel, the second pixel, the 3rd pixel and the 4th pixel arranged adjacent the most successively；
Described first data wire connects the first sub-pixel of described first pixel, the second sub-pixel, the 3rd sub-pixel and described
First sub-pixel of the second pixel, the second sub-pixel, the 3rd sub-pixel,
Described second data wire connects the first sub-pixel of described 3rd pixel, the second sub-pixel, the 3rd sub-pixel and described
First sub-pixel of the 4th pixel, the second sub-pixel, the 3rd sub-pixel,
Two ends in described first switching device connect respectively the second sub-pixel of same pixel, neighbor or spaced pixels with
3rd sub-pixel.
9. pixel-driving circuit as described in any one in claim 5 to 8, it is characterised in that
With the second sub-pixel of adjacent two pixels or the 3rd sub-pixel of a line, relative to the first sub-pixel in same pixel
Position different.
10. pixel-driving circuit as claimed in claim 1, it is characterised in that
The driving time of described first sub-pixel is more than described second sub-pixel or the driving time of described 3rd sub-pixel.
11. pixel-driving circuits as claimed in claim 10, it is characterised in that
The driving time of described first sub-pixel is than described second sub-pixel or the driving time big 10% of described 3rd sub-pixel
To 15%.
12. 1 kinds of display floaters, including:
Multiple pixels, each pixel includes multiple sub-pixel；
Pixel-driving circuit as described in any one in claim 1 to 11.
13. 1 kinds of image element driving methods, are used for driving pel array, it is characterised in that
Described pel array include multiple pixel, each described pixel all include being respectively provided with storage capacitors the first sub-pixel,
Second sub-pixel and the 3rd sub-pixel, adjacent described sub-pixel opposite polarity in the row direction,
When driving the first sub-pixel of current scan list, the second son will gone together with described first sub-pixel in next scan columns
Pixel and threeth sub-pixel gone together opposite polarity with described second sub-pixel carry out electric charge to be shared, by described second sub-pixel
It is averaged with the voltage in the 3rd respective storage capacitors of sub-pixel.
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