CN109754769A - The driving method of display panel - Google Patents
The driving method of display panel Download PDFInfo
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- CN109754769A CN109754769A CN201910205042.1A CN201910205042A CN109754769A CN 109754769 A CN109754769 A CN 109754769A CN 201910205042 A CN201910205042 A CN 201910205042A CN 109754769 A CN109754769 A CN 109754769A
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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
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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
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention provides a kind of driving method of display panel.The driving method of the display panel was arranged within each line-scanning period, several multiplex signals are sequentially generated a high potential pulse according to preset order, and within the same line-scanning period, several high potential pulses that several multiplex signals generate have at least two different pulse widths, and it is generated after the big small high potential pulse of high potential pulse ratio pulse width of pulse width, to pass through the pulse width of the high potential pulse generated after increasing, promote the charging homogeneity of sub-pixel, eliminate the striped sense for the picture that display panel is shown, promote display quality.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of driving methods of display panel.
Background technique
With the development of display technology, the planes such as liquid crystal display device (Liquid Crystal Display, LCD) are shown
Device gradually replaces cathode-ray tube (Cathode because having many advantages, such as that high image quality, power saving, fuselage is thin and has a wide range of application
Ray Tube, CRT) display screen, be widely used in mobile phone, TV, personal digital assistant, digital camera, laptop,
The various consumer electrical products such as desktop computer, become the mainstream in display device.
Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising liquid crystal display panel
And backlight module (backlight module).The working principle of liquid crystal display panel is in thin-film transistor array base-plate
(Thin Film Transistor Array Substrate, TFT Array Substrate) and color film (Color
Filter, CF) liquid crystal molecule is poured between substrate, and apply driving voltage on two plate bases to control the rotation of liquid crystal molecule
The light refraction of backlight module is come out and generates picture by direction.
In the driving framework of traditional liquid crystal display device, there is a data line Data on a pixel electrode respectively
Line and scan line Gate line, this way can control in every scan line the opening of grid and every well
The input of data on data line, still, with the increase of the resolution of liquid crystal display panel and the increase of resolution ratio, data line and
The item number of scan line also will increase, and the area for being fanned out to region shared by cabling of data line is brought to increase therewith, to influence to penetrate
Rate and display effect.To solve this problem, the driving framework of multiplexing is widely used, such as 1to2,1to3
And 1to6 De-mux driving framework etc., by taking 1to6 De-mux drives framework as an example, so-called 1to6 De-mux driving framework refers to
The technology for using the principle of time-sharing multiplex to charge using a data-signal for 6 column pixels.Referring to Fig. 1, existing one
The display panel of kind 1to6 Dex-mux driving framework includes multiple driving units.Each driving unit includes in the column row of multirow 4
Multiple pixels 100 of cloth, 12 data lines 200, multi-strip scanning line 300 and multiplexing module 400.Each pixel 100 includes
Three sub-pixels 110 being in line, three sub-pixels 110 are followed successively by red sub-pixel r, green sub-pixels g and blue
Pixel b, the sub-pixel 110 of multiple pixels 100 line up the column of multirow 12, and the color of same row sub-pixel 110 is identical, a data line
A 200 corresponding and column sub-pixels 110, a correspondence of scan line 300 are connect with a line sub-pixel 110.Multiplexing module 400 wraps
12 thin film transistor (TFT) T10 corresponding with 12 column sub-pixels 110, the drain electrode of 12 thin film transistor (TFT) T10 respectively is included to be separately connected
The data line 200 that a corresponding column sub-pixel 110 is connected, the source electrode of thin film transistor (TFT) T10 corresponding with odd column sub-pixel 110
Accessing N data signal DN, N is positive integer, and the source electrode of thin film transistor (TFT) T10 corresponding with even column sub-pixel 110 is equal
Access the corresponding thin film transistor (TFT) T10's of red sub-pixel r in the N+1 data column pixel 100 of signal DN+1, the 1st and the 2nd
Grid accesses the corresponding thin film transistor (TFT) T10 of green sub-pixels g in the first multiplexed signals column pixel 100 of MUX10, the 1st and the 2nd
Grid access the second multiplexed signals column pixel 100 of MUX20, the 1st and the 2nd in the corresponding thin film transistor (TFT) of blue subpixels b
The grid of T10 accesses third multiplexed signals MUX30, and the corresponding film of red sub-pixel r in the 3rd column and the 4th column pixel 100 is brilliant
The grid of body pipe T10 accesses the 4th multiplexed signals MUX40, and the green sub-pixels g in the 3rd column and the 4th column pixel 100 is corresponding thin
The grid of film transistor T10 accesses the 5th multiplexed signals MUX50, and the blue subpixels b in the 3rd column and the 4th column pixel 100 is corresponding
Thin film transistor (TFT) T10 grid access the 6th multiplexed signals MUX60.
The display panel includes the multiple frame periods successively carried out when being driven, each frame period include it is multiple successively into
Capable multiple row periods, multi-strip scanning line 300 are successively high level in multiple row periods, referring to Fig. 2, in each row week
In phase, the first multiplexed signals MUX10, the second multiplexed signals MUX20, third multiplexed signals MUX30, the 4th multiplexed signals MUX40,
5th multiplexed signals MUX50 and the 6th multiplexed signals MUX60 are sequentially generated a high level pulse, by corresponding thin film transistor (TFT)
T10, which is opened, transmits data-signal into corresponding sub-pixel 110.Such driving method can reduce data line and be fanned out to shared by cabling
The area in space is to realize narrow frame, however, in the prior art, to each of each frame period row intermittent scanning
When, the charging order of multiple sub-pixels 110 is equal are as follows: first charge the 1st column and the 2nd column pixel 100, rear the 3rd column of charging and the 4th column picture
Element 100, when pixel undercharge and common voltage fluctuate, after the display effect for the pixel 100 being first electrically charged is better than
The display effect for the pixel 100 being electrically charged finally will lead to the 1st column and the 2nd column pixel as shown in Figure 3 in actual displayed
Apparent luminance difference is generated between 100 and the 3rd column and the 4th column pixel 100, and then is occurred on the picture that display panel is shown
Striped sense influences the effect of display.
Summary of the invention
The purpose of the present invention is to provide a kind of driving methods of display panel, can eliminate the picture that display panel is shown
Striped sense, promoted display quality.
The present invention also aims to a kind of driving methods of display panel, include the following steps:
Step S1, display panel is provided；
The display panel includes the multiple driving units being arranged successively；Each driving unit includes in multirow 2m column arrangement
Multiple sub-pixels, 2m data line and two multiplexing modules；One column sub-pixel is correspondingly connected with a data line；It is each
Multiplexing module includes m switch element, and m switch element in each multiplexing module is respectively connected to m multichannel
Multiplexed signals；The input terminal of one m switch element in two multiplexing modules accesses nth data signal, and two
The input terminal of another m switch element in a multiplexing module accesses (n+1)th data-signal；Two multichannels are multiple
The 2m data line is electrically connected with the output end of 2m switch element in module, m is the positive integer greater than 1, and n is
Positive integer；
Step S2, to the multiple sub-pixel into line scans, within each line-scanning period, the m multichannel is multiple
It is sequentially generated a high potential pulse according to preset order with signal, and within the same line-scanning period, the m multichannel is multiple
There is at least two different pulse widths, and the high potential pulse that pulse width is big with the m high potential pulse that signal generates
It is generated after the high potential pulse smaller than pulse width.
Wherein, 6 m；The control terminal of 6 switch elements in each multiplexing module is respectively connected to the first multiplexing
Signal, the second multiplex signal, third multiplex signal, the 4th multiplex signal, the 5th multiplex signal, the 6th
Multiplex signal；
Within each line-scanning period, the first multiplex signal, the second multiplex signal, third multiplexing letter
Number, the 4th multiplex signal, the 5th multiplex signal, the 6th multiplex signal be sequentially generated a high potential pulse.
The high potential arteries and veins that first multiplex signal, the second multiplex signal and third multiplex signal generate
The pulse width of punching is equal, and the 4th multiplex signal, the 5th multiplex signal and the 6th multiplex signal generate
High potential pulse pulse width it is equal, the pulse width for the high potential pulse that first multiplex signal generates is less than
The pulse width for the high potential pulse that 4th multiplex signal generates.
The high potential pulse that first multiplex signal, the second multiplex signal and third multiplex signal generate
Pulse width is sequentially increased, and the 4th multiplex signal, the 5th multiplex signal and the 6th multiplex signal generate
High potential pulse pulse width it is equal, the pulse width for the high potential pulse that the third multiplex signal generates is less than
The pulse width for the high potential pulse that 4th multiplex signal generates.
The high potential arteries and veins that first multiplex signal, the second multiplex signal and third multiplex signal generate
The pulse width of punching is equal, and the 4th multiplex signal, the 5th multiplex signal and the 6th multiplex signal generate
The pulse width of high potential pulse be sequentially increased, the pulse width for the high potential pulse that the third multiplex signal generates
Less than the pulse width for the high potential pulse that the 4th multiplex signal generates.
First multiplex signal, the second multiplex signal, third multiplex signal, the 4th multiplexing letter
Number, the pulse width of high potential pulse that generates of the 5th multiplex signal and the 6th multiplex signal is sequentially increased.
Wherein, 3 m；The control terminal of 3 switch elements in each multiplexing module is respectively connected to the first multiplexing
Signal, the second multiplex signal and third multiplex signal；
Within each line-scanning period, the first multiplex signal, the second multiplex signal and third multiplexing
Signal is sequentially generated a high potential pulse；
The high potential arteries and veins that first multiplex signal, the second multiplex signal and third multiplex signal generate
The pulse width of punching is sequentially increased.
Wherein, 2 m；The control terminal of 2 switch elements in each multiplexing module is respectively connected to the first multiplexing
Signal and the second multiplex signal；
Within each line-scanning period, the first multiplex signal and the second multiplex signal are sequentially generated a height
The pulse width of potential pulse, the high potential pulse that first multiplex signal generates is produced less than the second multiplex signal
The pulse width of raw high potential pulse.
The switch element is thin film transistor (TFT), and the control terminal of switch element is the grid of thin film transistor (TFT), switch element
Input terminal be thin film transistor (TFT) source electrode, the output end of switch element is the drain electrode of thin film transistor (TFT).
The driving unit further includes multi-strip scanning line；A line sub-pixel is correspondingly connected with a scan line.
Beneficial effects of the present invention: the present invention provides a kind of driving method of display panel, by scanning in each row
In period, several multiplex signals are set according to preset order and are sequentially generated a high potential pulse, and are swept in the same row
It retouches in the period, several high potential pulses that several multiplex signals generate have at least two different pulse widths,
And generated after the big small high potential pulse of high potential pulse ratio pulse width of pulse width, to pass through the height generated after increasing
The pulse width of potential pulse promotes the charging effect of sub-pixel, eliminates the striped sense for the picture that display panel is shown, is promoted aobvious
Show quality.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the structural schematic diagram for the display panel that a kind of existing 1to6 Dex-mux drives framework；
Fig. 2 is the driver' s timing figure of display panel shown in FIG. 1；
Fig. 3 is the display renderings of display panel shown in FIG. 1；
Fig. 4 is the flow chart of the driving method of display panel of the invention；
Fig. 5 is the first structure chart of display panel in the driving method of display panel of the invention；
Fig. 6 is the timing diagram of the first embodiment of the driving method of display panel of the invention；
Fig. 7 is the timing diagram of the second embodiment of the driving method of display panel of the invention；
Fig. 8 is the timing diagram of the 3rd embodiment of the driving method of display panel of the invention；
Fig. 9 is the timing diagram of the fourth embodiment of the driving method of display panel of the invention；
Figure 10 is second of structure chart of display panel in the driving method of display panel of the invention；
Figure 11 is the timing diagram of the 5th embodiment of the driving method of display panel of the invention；
Figure 12 is the 4th kind of structure chart of display panel in the driving method of display panel of the invention；
Figure 13 is the timing diagram of the sixth embodiment of the driving method of display panel of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Referring to Fig. 4, a kind of driving method of display panel of the present invention, includes the following steps:
Step S1, display panel is provided；
The display panel includes the multiple driving units being arranged successively；Each driving unit includes in multirow 2m column arrangement
Multiple sub-pixels 10,2m data line 20 and two multiplexing modules 40；One column sub-pixel 10 is correspondingly connected with a data
Line 20；Each multiplexing module 40 includes m switch element 41, m switch element in each multiplexing module 40
41 are respectively connected to m multiplex signal；The input terminal of one m switch element 41 in two multiplexing modules 40 is equal
Nth data signal Dn is accessed, the input terminal of another the m switch element 41 in two multiplexing modules 40 accesses
(n+1)th data-signal Dn+1；The output end of 2m switch element 41 in two multiplexing modules 40 is electrically connected
The 2m data line 20, m are the positive integer greater than 1, and n is positive integer；
Step S2, to the multiple sub-pixel 10 into line scans, within each line-scanning period, the m multichannel
Multiplexed signals is sequentially generated a high potential pulse according to preset order, and within the same line-scanning period, the m multichannel
The m high potential pulse that multiplexed signals generates has at least two different pulse widths, and the high potential arteries and veins that pulse width is big
It is generated after rushing the high potential pulse smaller than pulse width.
Specifically, the display panel is liquid crystal display panel or OLED display panel.
Specifically, every a line sub-pixel 10 includes the red sub-pixel R, green sub-pixels G and indigo plant for being repeated in arrangement
The color of sub-pixels B, the sub-pixel 10 of same row are identical.
Specifically, the switch element 41 is thin film transistor (TFT) T1, and the control terminal of switch element 41 is thin film transistor (TFT) T1
Grid, the input terminal of switch element 41 is the source electrode of thin film transistor (TFT) T1, and the output end of switch element 41 is thin film transistor (TFT)
The drain electrode of T1.
Further, each driving unit further includes multi-strip scanning line 30；A line sub-pixel 10 is correspondingly connected with one
Scan line 30, the m articles scan line 30 export m-th of scanning signal Gm, and to be scanned to m row sub-pixel 11, m is positive whole
Number, each scan line 30 are sequentially output scanning signal in sequence, namely when the scanning signal of a scan line 30 is high potential
When, the scanning signal in remaining scan line 30 is low potential.
Specifically, as shown in figure 5, in first to fourth embodiment of the invention, m 6；Each multiplexing module 40
In the control terminals of 6 switch elements 41 be respectively connected to the first multiplex signal MUX1, the second multiplex signal MUX2,
Three multiplex signal MUX3, the 4th multiplex signal MUX4, the 5th multiplex signal MUX5, the 6th multiplex signal
MUX6；
Within each line-scanning period, the first multiplex signal MUX1, the second multiplex signal MUX2, third are more
Road multiplexed signals MUX3, the 4th multiplex signal MUX4, the 5th multiplex signal MUX5, the 6th multiplex signal MUX6
It is sequentially generated a high potential pulse.
Specifically, as shown in figure 5, in first to fourth embodiment of the invention, the first multiplex signal is accessed
The data line 20 of the 1st column and the 4th column is electrically connected in the output end of two switch elements 41 of MUX1, and the second multichannel of access is multiple
The data line 20 of the 5th column and the 2nd column is electrically connected with the output end of two switch elements 41 of signal MUX2, accesses third
The data line 20 of the 3rd column and the 6th column is electrically connected in the output end of two switch elements 41 of multiplex signal MUX3, connects
The data of the 7th column and the 10th column are electrically connected in the output end for entering two switch elements 41 of the 4th multiplex signal MUX4
The 11st column and the 8th is electrically connected in line 20, the output end for accessing two switch elements 41 of the 5th multiplex signal MUX5
The data line 20 of column, the output end for accessing two switch elements 41 of the 6th multiplex signal MUX6 are electrically connected the 9th
The data line 20 of column and the 12nd column, and be electrically connected the 1st column data line 20 and be electrically connected two switches of the 2nd column data line 20
Element 41 is located at different multiplexing modules 40, is electrically connected the 7th column data line 20 and is electrically connected the 8th column data line 20
Two switch elements 41 are located at different multiplexing modules 40.
Specifically, in the first embodiment of the present invention, the first multiplex signal MUX1, the second multiplexing letter
The pulse width for the high potential pulse that number MUX2 and third multiplex signal MUX3 is generated is equal, the 4th multiplexing letter
The pulse width phase for the high potential pulse that number MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
Deng the pulse width for the high potential pulse that the first multiplex signal MUX1 is generated is less than the 4th multiplex signal MUX4
The pulse width of the high potential pulse of generation.
It should be noted that as shown in fig. 6, the first embodiment of the present invention, by the way that the first multiplex signal is arranged
The pulse width for the high potential pulse that MUX1, the second multiplex signal MUX2 and third multiplex signal MUX3 are generated is less than
The height electricity that the 4th multiplex signal MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
The pulse of digit pulse, to increase the 4th multiplex signal MUX4, the 5th multiplex signal MUX5 and the 6th multiplexing
In the charging time of the corresponding sub-pixel 10 of signal MUX6, the undercharge of the sub-pixel 10 to charge afterwards in the prior art is made up, is mentioned
The charging homogeneity of sub-pixel 10 is risen, the striped sense for the picture that display panel is shown is eliminated, promotes display quality.
Specifically, as shown in fig. 7, the first multiplex signal MUX1, the second multiplex signal MUX2 and third multichannel
The pulse width for the high potential pulse that multiplexed signals MUX3 is generated is sequentially increased, the 4th multiplex signal MUX4, the 5th
The pulse width for the high potential pulse that multiplex signal MUX5 and the 6th multiplex signal MUX6 is generated is equal, the third
The pulse width for the high potential pulse that multiplex signal MUX3 is generated is less than the height electricity that the 4th multiplex signal MUX4 is generated
The pulse width of digit pulse.
It should be noted that the second embodiment of the present invention, by the way that the first multiplex signal MUX1, the second multichannel is arranged
The pulse width for the high potential pulse that multiplexed signals MUX2 and third multiplex signal MUX3 is generated is less than the 4th multichannel
The arteries and veins for the high potential pulse that multiplexed signals MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
Punching, and the height that the first multiplex signal MUX1, the second multiplex signal MUX2 and third multiplex signal MUX3 are generated
The pulse width of potential pulse is sequentially increased, so that in the charging time of the sub-pixel 10 to charge after increasing, make up in the prior art
The undercharge of the sub-pixel 10 to charge afterwards promotes the charging homogeneity of sub-pixel 10, eliminates the picture that display panel is shown
Striped sense promotes display quality.
Specifically, as shown in figure 8, in the third embodiment of the present invention, the first multiplex signal MUX1, second
The pulse width for the high potential pulse that multiplex signal MUX2 and third multiplex signal MUX3 is generated is equal, and the described 4th
The high potential pulse that multiplex signal MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
Pulse width is sequentially increased, and the pulse width for the high potential pulse that the third multiplex signal MUX3 is generated is more than the 4th
The pulse width for the high potential pulse that road multiplexed signals MUX4 is generated.
It should be noted that the third embodiment of the present invention, by the way that the first multiplex signal MUX1, the second multichannel is arranged
The pulse width for the high potential pulse that multiplexed signals MUX2 and third multiplex signal MUX3 is generated is less than the 4th multichannel
The arteries and veins for the high potential pulse that multiplexed signals MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
Punching, and the 4th multiplex signal MUX4, the 5th multiplex signal MUX5 and the 6th multiplex signal MUX6 are generated
The pulse width of high potential pulse be sequentially increased, so that in the charging time of the sub-pixel 10 to charge after increasing, make up existing skill
The undercharge of the sub-pixel 10 to charge after in art promotes the charging homogeneity of sub-pixel 10, eliminates the picture that display panel is shown
The striped sense in face promotes display quality.
Specifically, as shown in figure 9, in the fourth embodiment of the present invention, the first multiplex signal MUX1, second
Multiplex signal MUX2, third multiplex signal MUX3, the 4th multiplex signal MUX4, the 5th multiplex signal
The pulse width for the high potential pulse that MUX5 and the 6th multiplex signal MUX6 is generated is sequentially increased.
It should be noted that the fourth embodiment of the present invention, by the way that the first multiplex signal MUX1, second is arranged
Multiplex signal MUX2, third multiplex signal MUX3, the 4th multiplex signal MUX4, the 5th multiplex signal
The pulse width for the high potential pulse that MUX5 and the 6th multiplex signal MUX6 is generated is sequentially increased, thus charge after increasing
The charging time of sub-pixel 10 makes up the undercharge of the sub-pixel 10 to charge afterwards in the prior art, promotes filling for sub-pixel 10
Electric homogeneity eliminates the striped sense for the picture that display panel is shown, promotes display quality.
Specifically, as shown in Figure 10, in the fifth embodiment of the present invention, m 3；3 in each multiplexing module 40
The control terminal of a switch element 41 is respectively connected to the first multiplex signal MUX1 ', the second multiplex signal MUX2 ' and third
Multiplex signal MUX3 '.
Within each line-scanning period, the first multiplex signal MUX1 ', the second multiplex signal MUX2 ' and
Three multiplex signal MUX3 ' are sequentially generated a high potential pulse；
As shown in figure 11, the first multiplex signal MUX1 ', the second multiplex signal MUX2 ' and third multichannel
The pulse width for the high potential pulse that multiplexed signals MUX3 ' is generated is sequentially increased.
Wherein, the output end for accessing two switch elements 41 of the first multiplex signal MUX1 ' is electrically connected the 1st
The data line 20 of column and the 4th column, the output end for accessing two switch elements 41 of the second multiplex signal MUX2 ' are electrical respectively
The data line 20 for connecting the 5th column and the 2nd column, accesses the output end of two switch elements 41 of third multiplex signal MUX3 '
The data line 20 of the 3rd column and the 6th column is electrically connected, and is electrically connected the 1st column data line 20 and is electrically connected the 2nd column data
Two switch elements 41 of line 20 are located at different multiplexing modules 40.
It should be noted that the fifth embodiment of the present invention, by the way that the first multiplex signal MUX1 ', the is arranged
The pulse width for the high potential pulse that two multiplex signal MUX2 ', third multiplex signal MUX3 ' are generated is sequentially increased,
To the charging time of the sub-pixel 10 to charge after increase, the undercharge of the sub-pixel 10 to charge afterwards in the prior art is made up,
The charging homogeneity of sub-pixel 10 is promoted, the striped sense for the picture that display panel is shown is eliminated, promotes display quality.
Specifically, as shown in figure 12, in the sixth embodiment of the present invention, m 2；2 in each multiplexing module 40
The control terminal of a switch element 41 is respectively connected to the first multiplex signal MUX1 " and the second multiplex signal MUX2 "；
As shown in figure 13, within each line-scanning period, the multiplexing letter of the first multiplex signal MUX1 " and second
Number MUX2 " is sequentially generated a high potential pulse, the pulse for the high potential pulse that the first multiplex signal MUX1 " is generated
Pulse width of the width less than the second multiplex signal MUX2 " high potential pulse generated.
Wherein, the output end for accessing two switch elements 41 of the first multiplex signal MUX1 " is electrically connected the 1st
The data line 20 of column and the 3rd column, the output end for accessing two switch elements 41 of the second multiplex signal MUX2 " are electrical respectively
Connect the data line 20 of the 2nd column and the 4th column.
It should be noted that the sixth embodiment of the present invention, by the way that the first multiplex signal MUX1 ", the is arranged
The pulse width for the high potential pulse that two multiplex signal MUX2 " are generated is sequentially increased, thus the sub-pixel to charge after increasing
10 charging time makes up the undercharge of the sub-pixel 10 to charge afterwards in the prior art, and the charging for promoting sub-pixel 10 is uniform
Property, the striped sense for the picture that display panel is shown is eliminated, display quality is promoted.
In conclusion the present invention provides a kind of driving method of display panel, by within each line-scanning period, if
It sets several multiplex signals and is sequentially generated a high potential pulse according to preset order, and within the same line-scanning period,
Several high potential pulses that several multiplex signals generate have at least two different pulse widths, and pulse width
It is generated after the small high potential pulse of big high potential pulse ratio pulse width, to pass through the high potential pulse generated after increase
Pulse width promotes the charging effect of sub-pixel, eliminates the striped sense for the picture that display panel is shown, promotes display quality.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (10)
1. a kind of driving method of display panel, which comprises the steps of:
Step S1, display panel is provided；
The display panel includes the multiple driving units being arranged successively；Each driving unit includes in the more of multirow 2m column arrangement
A sub-pixel (10), 2m data line (20) and two multiplexing modules (40)；One column sub-pixel (10) is correspondingly connected with one
Data line (20)；Each multiplexing module (40) includes m switch element (41), in each multiplexing module (40)
M switch element (41) is respectively connected to m multiplex signal；One m switch in two multiplexing modules (40)
The input terminal of element (41) accesses nth data signal (Dn), another the m in two multiplexing modules (40) are opened
The input terminal for closing element (41) accesses (n+1)th data-signal (Dn+1)；2m in two multiplexing modules (40) are opened
The 2m data line (20) is electrically connected in the output end for closing element (41), and m is the positive integer greater than 1, and n is positive integer；
Step S2, to the multiple sub-pixel (10) into line scans, within each line-scanning period, the m multichannel is multiple
It is sequentially generated a high potential pulse according to preset order with signal, and within the same line-scanning period, the m multichannel is multiple
There is at least two different pulse widths, and the high potential pulse that pulse width is big with the m high potential pulse that signal generates
It is generated after the high potential pulse smaller than pulse width.
2. the driving method of display panel as described in claim 1, which is characterized in that m 6；Each multiplexing module
(40) control terminal of 6 switch elements (41) in is respectively connected to the first multiplex signal (MUX1), the second multiplexing letter
Number (MUX2), third multiplex signal (MUX3), the 4th multiplex signal (MUX4), the 5th multiplex signal
(MUX5), the 6th multiplex signal (MUX6)；
Within each line-scanning period, the first multiplex signal (MUX1), the second multiplex signal (MUX2), third are more
Road multiplexed signals (MUX3), the 4th multiplex signal (MUX4), the 5th multiplex signal (MUX5), the 6th multiplexing letter
Number (MUX6) is sequentially generated a high potential pulse.
3. the driving method of display panel as claimed in claim 2, which is characterized in that first multiplex signal
(MUX1), the pulse for the high potential pulse that the second multiplex signal (MUX2) and third multiplex signal (MUX3) generate is wide
Spend equal, the 4th multiplex signal (MUX4), the 5th multiplex signal (MUX5) and the 6th multiplex signal
(MUX6) pulse width of the high potential pulse generated is equal, the high potential arteries and veins that first multiplex signal (MUX1) generates
Pulse width of the pulse width of punching less than the high potential pulse that the 4th multiplex signal (MUX4) generates.
4. the driving method of display panel as claimed in claim 2, which is characterized in that the first multiplex signal (MUX1),
The pulse width for the high potential pulse that second multiplex signal (MUX2) and third multiplex signal (MUX3) generate is successively
Increase, the 4th multiplex signal (MUX4), the 5th multiplex signal (MUX5) and the 6th multiplex signal
(MUX6) pulse width of the high potential pulse generated is equal, the high potential arteries and veins that the third multiplex signal (MUX3) generates
Pulse width of the pulse width of punching less than the high potential pulse that the 4th multiplex signal (MUX4) generates.
5. the driving method of display panel as claimed in claim 2, which is characterized in that first multiplex signal
(MUX1), the pulse for the high potential pulse that the second multiplex signal (MUX2) and third multiplex signal (MUX3) generate is wide
Spend equal, the 4th multiplex signal (MUX4), the 5th multiplex signal (MUX5) and the 6th multiplex signal
(MUX6) pulse width of the high potential pulse generated is sequentially increased, the height electricity that the third multiplex signal (MUX3) generates
Pulse width of the pulse width of digit pulse less than the high potential pulse that the 4th multiplex signal (MUX4) generates.
6. the driving method of display panel as claimed in claim 2, which is characterized in that first multiplex signal
(MUX1), the second multiplex signal (MUX2), third multiplex signal (MUX3), the 4th multiplex signal (MUX4),
The pulse width for the high potential pulse that 5th multiplex signal (MUX5) and the 6th multiplex signal (MUX6) generate is successively
Increase.
7. the driving method of display panel as described in claim 1, which is characterized in that m 3；Each multiplexing module
(40) control terminal of 3 switch elements (41) in is respectively connected to the first multiplex signal (MUX1 '), the second multiplexing letter
Number (MUX2 ') and third multiplex signal (MUX3 ')；
Within each line-scanning period, the first multiplex signal (MUX1 '), the second multiplex signal (MUX2 ') and
Three multiplex signals (MUX3 ') are sequentially generated a high potential pulse；
First multiplex signal (MUX1 '), the second multiplex signal (MUX2 ') and third multiplex signal
The pulse width for the high potential pulse that (MUX3 ') is generated is sequentially increased.
8. the driving method of display panel as described in claim 1, which is characterized in that m 2；Each multiplexing module
(40) control terminal of 2 switch elements (41) in is respectively connected to the first multiplex signal (MUX1 ") and the second multiplexing
Signal (MUX2 ")；
Within each line-scanning period, the first multiplex signal (MUX1 ") and the second multiplex signal (MUX2 ") are successively
A high potential pulse is generated, the pulse width for the high potential pulse that first multiplex signal (MUX1 ") generates is less than
The pulse width for the high potential pulse that second multiplex signal (MUX2 ") generates.
9. the driving method of display panel as described in claim 1, which is characterized in that the switch element (41) is that film is brilliant
Body pipe (T1), the control terminal of switch element (41) are the grid of thin film transistor (TFT) (T1), and the input terminal of switch element (41) is thin
The source electrode of film transistor (T1), the output end of switch element (41) are the drain electrode of thin film transistor (TFT) (T1).
10. the driving method of display panel as described in claim 1, which is characterized in that the driving unit further includes a plurality of
Scan line (30)；A line sub-pixel (10) is correspondingly connected with a scan line (30).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910205042.1A CN109754769A (en) | 2019-03-18 | 2019-03-18 | The driving method of display panel |
| PCT/CN2019/085760 WO2020186605A1 (en) | 2019-03-18 | 2019-05-07 | Driving method for display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205042.1A CN109754769A (en) | 2019-03-18 | 2019-03-18 | The driving method of display panel |
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