CN106782407B - A kind of driving method and display panel of display panel - Google Patents
A kind of driving method and display panel of display panel Download PDFInfo
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- CN106782407B CN106782407B CN201710083104.7A CN201710083104A CN106782407B CN 106782407 B CN106782407 B CN 106782407B CN 201710083104 A CN201710083104 A CN 201710083104A CN 106782407 B CN106782407 B CN 106782407B
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3622—Control of matrices with row and column drivers using a passive matrix
- G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
- G09G3/364—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals with use of subpixels
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
Abstract
The invention discloses a kind of driving method of display panel and display panels, show the period in every frame, gate driving scanning circuit loads gated sweep signal to each grid line using gate signal lead-in one by one；When every grid line loads gated sweep signal, charged using each sub-pixel unit that the data-signal pair that pieces of data line loads is connect with grid line.In order to avoid in grid line turn-off transient, the closest data line of the gate signal lead-in connecting with grid line is in the problem that floating state causes abnormal pixel shinny, the failing edge for the gated sweep signal that the data-signal covering of data line load that need to be closest to the gate signal lead-in connecting with the grid line of load gated sweep signal currently loads, to guarantee in grid line turn-off transient, the closest data line of the gate signal lead-in connecting with the grid line is not in floating state, the sub-pixel current potential that the data line is connected is influenced to avoid the coupling of gate signal lead-in, to solve the problems, such as that abnormal pixel is excessively bright.
Description
Technical field
The present invention relates to field of display technology, the driving method and display panel of espespecially a kind of display panel.
Background technique
In current display panel, gate driving scanning circuit (VSR) occupies a big chunk of display floater frame.For
The left and right side frame of display panel is reduced, to realize narrow frame design, VSR can be arranged to the lower section stepped region of display panel
Domain, or the top frame region to display panel, and the grid for providing VSR by additional gate signal lead-in are arranged in VSR
Pole scanning signal is introduced to corresponding grid line.
Based on this, as shown in Figure 1, needing in addition to be arranged and the consistent gate signal of 001 quantity of grid line at display area (AA)
Lead-in 002.Also, wiring direction and the data line (not shown in figure 1) extension side of usual increased gate signal lead-in 002
Unanimously to (generally vertical direction), in this way, gate signal lead-in 002 needs to be connected to corresponding grid line by via hole 003
001.In display when low ash rank, the sub-pixel 004 in the upper right corner at via hole 003 is (for the son for filling dot pattern in Fig. 1
Pixel) it will appear bright problem, to " aircraft nose " phenomenon occur.This is because gate signal lead-in 002 with it is closest
Data line between can generate the coupled capacitor of about 5pf, beaten in the grid line 001 by the control connection of gate signal lead-in 002
The moment closed is opened or closed, closest data line is in floating (Floating) state with gate signal lead-in 002.For example,
In the moment that grid line 001 is opened, the current potential for the gate signal lead-in 002 that grid line 001 connects becomes 10V from -7V, since coupling is made
With the current potential of closest data line rises with the gate signal lead-in 002, so as to cause passing through switching transistor at this time and being somebody's turn to do
The pixel electrode current potential of the sub-pixel (upper right corner for being usually located at via hole 003) 004 of data line conducting rises, which is
The sweep time of one frame, influence time was very short divided by the number of scanning lines, such as 16.67ms/1810=0.0092ms, and liquid crystal has little time
Response.And the moment closed in grid line 001, the current potential for the gate signal lead-in 002 that grid line 001 connects become -7V from 10V, by
In coupling, the current potential decline of closest data line with the gate signal lead-in 002, so as to cause brilliant by switch at this time
The pixel electrode current potential for the sub-pixel 004 that body pipe is connected with the data line declines, and influence time is to subtract the sweep time of a frame
The sweep time of the row grid line 001, i.e. influence time are approximately equal to the sweep time of a frame, such as 16.67ms, influence time phase
To longer, liquid crystal can be given and respond.As shown in Fig. 2, left side is pixel electrode current potential in sub-pixel 004 under normal circumstances
The difference of Vpixel and public electrode current potential Vcom are 5V, and right side is the son as caused by the coupling of gate signal lead-in 002
The variation of the difference of pixel electrode current potential Vpixel and public electrode current potential Vcom in pixel 004, the light emission luminance etc. of sub-pixel 004
In square of the difference of pixel electrode current potential Vpixel and public electrode current potential Vcom, therefore, sub-pixel 004 is generally presented as picture
Element is shinny.
Therefore, how to solve under narrow frame design, when gate signal lead-in 002 is connect with grid line 001 by via hole 003
The technical issues of shinny problem of bring abnormal pixel is this field urgent need to resolve.
Summary of the invention
The embodiment of the present invention provides the driving method and display panel of a kind of display panel, deposits in the prior art to solve
The shinny problem of abnormal pixel.
The embodiment of the invention provides a kind of driving method of display panel, the display panel include: a plurality of grid line, with
The multiple data lines of grid line insulation intersection setting, and the consistent a plurality of gate signal lead-in of the data line extending direction,
And multiple sub-pixel units being arranged in array；Each grid line is connected to by the one-to-one gate signal lead-in
The driving method of gate driving scanning circuit, the display panel includes:
The period is shown in every frame, and the gate driving scanning circuit is using the gate signal lead-in to each grid line
Gated sweep signal is loaded one by one；
When grid line described in each loads the gated sweep signal, the data using the load of data line described in each item are believed
It number charges to each sub-pixel unit being connect with the grid line；Wherein, to load the gated sweep signal
The data-signal covering of the closest data line load of the gate signal lead-in of the grid line connection is current to be added
The failing edge of the gated sweep signal carried.
The embodiment of the invention also provides a kind of display panels, using above-mentioned display panel provided in an embodiment of the present invention
Driving method is driven.
The present invention has the beneficial effect that:
The driving method and display panel of a kind of display panel provided in an embodiment of the present invention, prolong by using with data line
The mode that one-to-one grid line is connected to gate driving scanning circuit by the consistent a plurality of gate signal lead-in in direction is stretched, is realized
Narrow frame design.In this structure basis, the driving method of display panel includes: to show the period in every frame, and gate driving is swept
Scanning circuit loads gated sweep signal to each grid line using gate signal lead-in one by one；In each grid line load gated sweep letter
Number when, each sub-pixel unit that connect with grid line of data-signal pair loaded using pieces of data line is charged.Also, in order to
The moment closed in the grid line for introducing line traffic control connection by gate signal is avoided, with gate signal lead-in at closest data line
The shinny problem of the abnormal pixel caused by floating state is needed to the gate signal connecting with the grid line of load gated sweep signal
The failing edge for the gated sweep signal that the data-signal covering of the closest data line load of lead-in currently loads, to guarantee
The moment that grid line is closed, the closest data line of the gate signal lead-in connecting with the grid line just load data-signal and are not in
Floating state, the son for avoiding gate signal lead-in from the data line being connected this moment the coupling of closest data line with this
The influence of pixel potential, to solve the problems, such as that abnormal pixel is excessively bright.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of narrow frame display panel in the prior art；
Fig. 2 is the current potential schematic diagram of pixel in narrow frame display panel in the prior art；
Fig. 3 a is the structural schematic diagram of display panel in the driving method of display panel provided in an embodiment of the present invention；
Fig. 3 b is one of signal timing diagram corresponding with Fig. 3 a；
Fig. 3 c is the two of signal timing diagram corresponding with Fig. 3 a；
The structural schematic diagram of display panel when Fig. 4 a is transverse screen provided in an embodiment of the present invention；
Fig. 4 b is signal timing diagram corresponding with Fig. 4 a；
One of the structural schematic diagram of display panel when Fig. 5 a is vertical screen provided in an embodiment of the present invention；
Fig. 5 b is signal timing diagram corresponding with Fig. 5 a；
The second structural representation of display panel when Fig. 6 a is vertical screen provided in an embodiment of the present invention；
Fig. 6 b is signal timing diagram corresponding with Fig. 6 a.
Specific embodiment
With reference to the accompanying drawing, the specific reality of the driving method to display panel provided in an embodiment of the present invention and display panel
The mode of applying is described in detail.
A kind of driving method of display panel provided in an embodiment of the present invention, display panel include: a plurality of grid line and grid line
Insulation intersection setting multiple data lines, with the consistent a plurality of gate signal lead-in of data line extending direction and it is multiple be in battle array
Arrange the sub-pixel unit of arrangement；Each grid line is connected to gate driving scanning circuit by one-to-one gate signal lead-in, shows
The driving method for showing panel includes:
The period is shown in every frame, and gate driving scanning circuit loads grid to each grid line using gate signal lead-in one by one
Scanning signal；
When each grid line loads gated sweep signal, connected using the data-signal pair and grid line of pieces of data line load
Each sub-pixel unit connect charges；Wherein, most to the gate signal lead-in being connect with the grid line of load gated sweep signal
The failing edge for the gated sweep signal that the data-signal covering of neighbouring data line load currently loads.
Specifically, in the driving method of above-mentioned display panel provided in an embodiment of the present invention, in order to avoid passing through grid
Signal introduces the moment that the grid line of line traffic control connection is closed, and is in floating state with the closest data line of gate signal lead-in and leads
The shinny problem of the abnormal pixel of cause, need to be closest to the gate signal lead-in connecting with the grid line of load gated sweep signal
The failing edge for the gated sweep signal that the data-signal covering of data line load currently loads, to guarantee the wink closed in grid line
Between, the closest data line of the gate signal lead-in connecting with the grid line just loads data-signal and is not in floating state, with
This sub-pixel current potential for avoiding gate signal lead-in from the data line being connected this moment the coupling of closest data line
It influences, to solve the problems, such as that abnormal pixel is excessively bright.
Such as shown in Figure 3a and Figure 3b shows, it is with two row grid line Gout 1 and Gout 2 in display panel in fig. 3 a
Example, the closest data line of the gate signal lead-in 201 being connect by via hole with grid line Gout 1 (being not shown in Fig. 3 a) are indigo plant
The charging of color (B) sub-pixel, closest data line (Fig. 3 a of the gate signal lead-in 202 being connect with grid line Gout 2 by via hole
In be not shown) for green (G) sub-pixel charging.As shown in Figure 3b, grid are loaded by gate signal lead-in 201 in grid line Gout 1
When the scanning signal of pole, the data-signal for the data line Data B load of blue (B) sub-pixel charging covers gated sweep letter
Number failing edge, to guarantee that data line Data B loading data-signal and be not in the moment that grid line Gout 1 is closed
Floating state, the coupling to avoid gate signal lead-in 201 to data line Data B, caused blue (B) sub-pixel
Cross bright phenomenon；When grid line Gout 2 loads gated sweep signal by gate signal lead-in 202, filled for green (G) sub-pixel
The failing edge of the data-signal covering grid scanning signal of the data line Data G load of electricity, to guarantee to close in grid line Gout 2
Moment, data line Data G is loading data-signal and is being not in floating state, to avoid 202 logarithm of gate signal lead-in
According to the coupling of line Data G, the excessively bright phenomenon of caused green (G) sub-pixel.
Further, in order to reduce the cost of display panel, generally while keeping resolution ratio, it is desirable to reduce data drive
The output channel quantity of dynamic circuit.Based on this, in display panel, the multiple sub-pixels different from the color of same grid line connection
Unit constitutes a pixel unit, such as red, blue, green sub-pixels unit constitute a pixel unit；It is different for color
The pieces of data line of multiple sub-pixel unit chargings is connected by demultplexer with a signal input part, such as respectively red
The three data lines that color, blue, green sub-pixels unit charge are connected by a demultplexer with a signal input part,
The output channel of data drive circuit can be reduced to one third in this way.Specifically, each demultplexer has and connection
The different multiple sub-pixel units of color multiple control terminals correspondingly, each control terminal is respectively and for controlling different colours
Sub-pixel unit charging duration clock control signal line it is corresponding be connected, such as each demultplexer tool is there are three control terminal,
Respectively with the clock control signal line CKH R for controlling red sub-pixel unit charging duration, for controlling the son of green
The clock control signal line CKH G of pixel unit charging duration, and for controlling blue sub-pixel unit charging duration
Clock control signal line CKH B is connected.
Accordingly, it is connect using the data-signal pair of pieces of data line load with grid line in the driving method of display panel
Each sub-pixel unit charge, can specifically realize in the following way:
In the period of each grid line load gated sweep signal, successively to each clock control signal line load clock letter
Number；Wherein, the clock control signal line for finally loading clock signal corresponds to be connect with the grid line of load gated sweep signal
The closest data line of gate signal lead-in, and the failing edge of the clock signal covering grid scanning signal loaded；
When successively loading clock signal to each clock control signal line, by signal input part successively to each data of connection
The data-signal that the pulsewidth of line load and clock signal matches.
Such as shown in Fig. 3 a and Fig. 3 c, in fig. 3 a by taking two row grid line Gout 1 and Gout 2 in display panel as an example,
The closest data line of the gate signal lead-in 201 being connect by via hole with grid line Gout 1 (being not shown in Fig. 3 a) is blue
(B) sub-pixel charges, and the closest data line of the gate signal lead-in 202 being connect by via hole with grid line Gout 2 is (in Fig. 3 a
It is not shown) it charges for green (G) sub-pixel, and the data line that blue (B) sub-pixel is connected with green (G) sub-pixel passes through respectively
Different demultplexers is connected from different signal input parts.As shown in Figure 3c, it is introduced in grid line Gout 1 by gate signal
When line 201 loads gated sweep signal, the clock control signal line CKH B of the sub-pixel unit charging duration for controlling blue
Finally load load clock signal, and the failing edge of the gated sweep signal is covered, to guarantee the wink closed in grid line Gout 1
Between, data line Data B is loading data-signal and is being not in floating state, to avoid gate signal lead-in 201 to data line
The coupling of Data B, the excessively bright phenomenon of caused blue (B) sub-pixel.Specifically, the sequence for loading clock signal can be with
For the clock control signal line CKH R for controlling red sub-pixel unit charging duration → for controlling the sub-pixel of green
The clock control signal line CKH G of unit charging duration → for controlling the clock control of the sub-pixel unit charging duration of blue
Signal wire CKH B.As shown in Figure 3c, it when grid line Gout 2 loads gated sweep signal by gate signal lead-in 202, is used for
The clock control signal line CKH G for controlling the sub-pixel unit charging duration of green finally loads load clock signal, and covers
The failing edge of the gated sweep signal, to guarantee that, in the moment that grid line Gout 2 is closed, data line Data G is loading data
Signal and be not in floating state, the coupling to avoid gate signal lead-in 202 to data line Data G, caused green
(G) the excessively bright phenomenon of sub-pixel.Specifically, the sequence for loading clock signal can fill for the sub-pixel unit for controlling red
The clock control signal line CKH R of electric duration → for controlling the clock control signal line of the sub-pixel unit charging duration of blue
CKH B → for controlling the clock control signal line CKH G of the sub-pixel unit charging duration of green.
In the specific implementation, in the driving method of above-mentioned display panel provided in an embodiment of the present invention, to eliminate son
Pixel excessively bright phenomenon while, guarantee that each sub-pixel can be fully charged, each grid line load gated sweep signal when
Between section, successively to each clock control signal line load clock signal, can specifically realize in the following way:
In the period of each grid line load gated sweep signal, successively to other than finally loading clock signal
Each clock control signal line loads the identical clock signal of pulsewidth, loads to the clock control signal line of last load clock signal
The clock signal that pulsewidth becomes larger；
Wherein, the clock signal of clock control signal line load of clock signal is finally loaded beyond gated sweep signal
The pulsewidth of failing edge is equal to, and finally loads the pulsewidth of the clock signal of the clock control signal line load of clock signal and in addition to most
The difference of the pulsewidth of the clock signal of each clock control signal line load except clock signal is loaded afterwards.
Such as shown in Fig. 3 c, the period of gated sweep signal is loaded in grid line Gout 1, for controlling red sub- picture
The when clock of the clock control signal line CKH R of plain unit charging duration and the sub-pixel unit charging duration for controlling green
The pwm clock signal of signal wire CKH G processed is identical, and is equal to the clock of the sub-pixel unit charging duration for controlling blue
Pulsewidth of the clock signal of control signal wire CKH B before gated sweep signal failing edge.Grid is loaded in grid line Gout 2
The period of scanning signal, for controlling the clock control signal line CKH R of red sub-pixel unit charging duration and being used for
The pwm clock signal for controlling the clock control signal line CKH B of the sub-pixel unit charging duration of blue is identical, and is equal to and uses
In control green sub-pixel unit charging duration clock control signal line CKH G clock signal under gated sweep signal
Pulsewidth before edge drops.
Further, by simulated experiment it is found that above-mentioned display panel provided in an embodiment of the present invention driving method
In, finally load the arteries and veins of failing edge of the clock signal beyond gated sweep signal of the clock control signal line load of clock signal
The wide pulsewidth with last load clock signal needs to reach certain ratio, can just completely eliminate the excessively bright problem of abnormal pixel.
For example, as shown in Figure 3c, when the pulse of the clock signal for the clock control signal line load for adjusting last load clock signal is wide
Spend a to 1.59 μ s, and the pulse width beyond gated sweep signal failing edge pulsewidth b be 0.14 μ s when, that is, exceed grid
The total 1.59 μ s of pulsewidth of 0.14 μ s Zhan of pulsewidth of the failing edge of scanning signal 8.8% when, it is shinny still to will appear abnormal pixel
Problem, and the excessively bright phenomenon of pixel can make moderate progress when being greater than 8.8%.
Therefore, based on above-mentioned analysis, in the driving method of above-mentioned display panel provided in an embodiment of the present invention, finally plus
The pulsewidth for carrying failing edge of the clock signal beyond gated sweep signal of the clock control signal line load of clock signal, should be greater than
Finally load the 8.8% of total pulsewidth of the clock signal of the clock control signal line load of clock signal.
Also, by a large amount of simulated experiment data it is found that when the clock control signal for adjusting last load clock signal
The μ s of pulsewidth a to 1.68 of the clock signal of line load, and the pulsewidth b of failing edge of the pulse width beyond gated sweep signal is
When 0.34 μ s, that is, when exceeding the 20.2% of the total 1.68 μ s of pulsewidth of 0.34 μ s Zhan of pulsewidth of the failing edge of gated sweep signal, pixel
Bright phenomenon is crossed to completely disappear.
It is thus preferable to finally load clock in the driving method of above-mentioned display panel provided in an embodiment of the present invention
The pulsewidth of failing edge of the clock signal beyond gated sweep signal of the clock control signal line load of signal, adds not less than last
The 20.2% of total pulsewidth of the clock signal of the clock control signal line load of clock signal is carried, such as 20.2% can be equal to.
It is worth noting that, above-mentioned data need in the driving method of above-mentioned display panel provided in an embodiment of the present invention
The off time d integrated between the pulsewidth c (generally 5.86 μ s) of gated sweep signal, two gated sweep signals is (general
Between 0.5 μ s), the first clock signal of clock cable load for loading clock signal and the rising edge of gated sweep signal
Off time (generally 0.26 μ s) and two clock signals between the factors such as off time, it is final determine it is last plus
The ratio of the pulsewidth of the clock signal of load, the pulsewidth of its failing edge beyond gated sweep signal and the two, therefore, the present invention
The above-mentioned ratio determined in the driving method for the above-mentioned display panel that embodiment provides can not pass through simply limited times reality
It tests data to obtain, be obtained after needing to integrate various influence factors.
Lower mask body introduces adding for the clock signal in the driving method of above-mentioned display panel provided in an embodiment of the present invention
Load sequence.
The case where in display panel transverse screen, specifically: in display panel, each pixel unit for being connect with same grid line
Total number be not less than the total number of grid line, i.e., the total number of the pixel unit that every row is included is greater than or equal to total item of grid line
Number.At this point it is possible to which each via hole for connecting each gate signal lead-in and corresponding each grid line to be disposed adjacent to the son of same color
Pixel unit.In this way, the closest data line of each gate signal lead-in can charge for each sub-pixel unit of same color.
Accordingly, when display panel is driven, each grid line load gated sweep signal period, to this
The corresponding clock control signal line of the sub-pixel unit of color finally loads clock signal.
Specifically, in the present embodiment shown in such as Fig. 4 a and Fig. 4 b, number that can be closest by each gate signal lead-in
The charging of blue B sub-pixel unit is set as according to line；Accordingly, when display panel is driven, grid is loaded in each grid line
The period of scanning signal finally loads clock signal to clock control signal line corresponding with blue subpixels unit.Exist
Each grid line loads the period of gated sweep signal, when each clock control signal line connecting with demultplexer loads
The sequence of clock signal can be the clock control signal line CKH R for controlling red sub-pixel unit charging duration → be used for
The clock control signal line CKH G of the sub-pixel unit charging duration of control green → filled for controlling the sub-pixel unit of blue
The clock control signal line CKH B of electric duration.Such set-up mode is advantageous in that each clock control signal load clock letter
Number sequence consensus, facilitate signal sequence to be arranged.
The case where in display panel vertical screen, specifically: in display panel, each pixel unit for being connect with same grid line
Total number be less than the total number of grid line, i.e., the total number of the pixel unit that every row is included is less than the total number of grid line.At this point,
Each via hole for connecting each gate signal lead-in and corresponding each grid line can be disposed adjacent to the sub-pixel unit of different colours.
In this way, the closest data line of each gate signal lead-in can charge for each sub-pixel unit of different colours.
Accordingly, when display panel is driven, to reduce power consumption, there are two neighboring grid line load gated sweep letters
Number period in, finally loaded in previous time period clock signal clock control signal line and latter time period in it is first plus
The clock cable for carrying clock signal is identical, and the pulsewidth covering of the clock signal of clock control signal line load is two neighboring
Off time between gated sweep signal.
Specifically, as shown in figure 5 a and 5b, such as with the time of every adjacent six grid lines load gated sweep signal
The Duan Weiyi period；The clock control signal line sequence that clock signal is finally loaded within a period corresponds to red, blue, indigo plant
Color, red, green, green sub-pixels unit.In this way, referring to shown in Fig. 5 b, within a period, the first load gated sweep signal
Period in finally load the clock control signal line of clock signal and in the period of the second load gated sweep signal it is first
The clock cable of a load clock signal is the clock control signal for controlling red sub-pixel unit charging duration
Line CKH R；The clock control signal line and the 4th of clock signal is finally loaded in the period of third load gated sweep signal
The clock cable for loading first load clock signal in the period of gated sweep signal is for controlling blue sub- picture
The clock control signal line CKH B of plain unit charging duration；When finally being loaded in the period of the 4th load gated sweep signal
The clock of first load clock signal in the period of the clock control signal line of clock signal and the 5th load gated sweep signal
Signal wire is the clock control signal line CKH R for controlling red sub-pixel unit charging duration.
Specifically, as shown in figures 6 a and 6b, for another example with the time of every adjacent three grid lines load gated sweep signal
The Duan Weiyi period；The clock control signal line sequence that clock signal is finally loaded within a period corresponds to red, green, blue
Sub-pixel unit.At this point, can add as shown in Figure 6 b in every two adjacent grid lines to reduce driving power consumption to the greatest extent
Carry gated sweep signal period in, finally loaded in previous time period clock signal clock control signal line and it is latter when
Between in section first load clock signal clock cable it is all the same.Referring to shown in Fig. 6 b, within a period, the first load grid
Finally loaded in the period of scanning signal clock signal clock control signal line and second load gated sweep signal when
Between in section the clock cable of first load clock signal be clock for controlling red sub-pixel unit charging duration
Control signal wire CKH R；The clock control signal of clock signal is finally loaded in the period of second load gated sweep signal
Line and the clock cable of first load clock signal in the period of third load gated sweep signal are green for controlling
The clock control signal line CKH G of the sub-pixel unit charging duration of color；Third loads in the period of gated sweep signal most
The clock control signal line of clock signal is loaded afterwards and first load clock is believed in the period of the 4th load gated sweep signal
Number clock cable be for control blue sub-pixel unit charging duration clock control signal line CKH B.
Based on the same inventive concept, it the embodiment of the invention also provides a kind of display panel, is mentioned using the embodiment of the present invention
The driving method of the above-mentioned display panel supplied is driven.The principle solved the problems, such as due to display panel and a kind of aforementioned display surface
The driving method of plate is similar, therefore the implementation of the display panel may refer to the implementation of driving method, and overlaps will not be repeated.
Also, the display panel can be with are as follows: mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator
Etc. any products or components having a display function.
The driving method and display panel of above-mentioned display panel provided in an embodiment of the present invention, prolong by using with data line
The mode that one-to-one grid line is connected to gate driving scanning circuit by the consistent a plurality of gate signal lead-in in direction is stretched, is realized
Narrow frame design.In this structure basis, the driving method of display panel includes: to show the period in every frame, and gate driving is swept
Scanning circuit loads gated sweep signal to each grid line using gate signal lead-in one by one；In each grid line load gated sweep letter
Number when, each sub-pixel unit that connect with grid line of data-signal pair loaded using pieces of data line is charged.Also, in order to
The moment closed in the grid line for introducing line traffic control connection by gate signal is avoided, with gate signal lead-in at closest data line
The shinny problem of the abnormal pixel caused by floating state is needed to the gate signal connecting with the grid line of load gated sweep signal
The failing edge for the gated sweep signal that the data-signal covering of the closest data line load of lead-in currently loads, to guarantee
The moment that grid line is closed, the closest data line of the gate signal lead-in connecting with the grid line just load data-signal and are not in
Floating state, the son for avoiding gate signal lead-in from the data line being connected this moment the coupling of closest data line with this
The influence of pixel potential, to solve the problems, such as that abnormal pixel is excessively bright.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of driving method of display panel, the display panel includes: a plurality of grid line, insulate with the grid line and intersect setting
Multiple data lines, and the data line extending direction consistent a plurality of gate signal lead-in and multiple be arranged in array
Sub-pixel unit；Each grid line is connected to gate driving scanning circuit, institute by the one-to-one gate signal lead-in
The driving method for stating display panel includes:
Every frame show the period, the gate driving scanning circuit using the gate signal lead-in to each grid line one by one
Load gated sweep signal；
When grid line described in each loads the gated sweep signal, using the data-signal pair of the load of data line described in each item
Each sub-pixel unit connecting with the grid line charges；Wherein, to load described in the gated sweep signal
What the data-signal covering of the closest data line load of the gate signal lead-in of grid line connection currently loaded
The failing edge of the gated sweep signal.
2. the driving method of display panel as described in claim 1, which is characterized in that and same in the display panel
Multiple sub-pixel units that the color of the grid line connection is different constitute a pixel unit；For the different multiple institutes of color
Data line described in each item of sub-pixel unit charging is stated to be connected by demultplexer with a signal input part；Each multichannel
Distributor has the multiple sub-pixel units different from the color of connection multiple control terminals correspondingly, each described
Control terminal is corresponding with for controlling the clock control signal line of the sub-pixel unit charging duration of different colours respectively to be connected；
Each sub-pixel unit for being connect with the grid line of data-signal pair using the load of data line described in each item into
Row charging, specifically includes:
Grid line described in each loads the period of the gated sweep signal, successively adds to each clock control signal line
Carry clock signal；Wherein, the clock control signal line for finally loading the clock signal corresponds to and loads the grid
The closest data line of the gate signal lead-in of the grid line connection of scanning signal, and finally load it is described when
Clock signal covers the failing edge of the corresponding gated sweep signal；
When successively loading the clock signal to each clock control signal line, by the signal input part successively to even
It connects each data line and loads the data-signal to match with the pulsewidth of the clock signal.
3. the driving method of display panel as claimed in claim 2, which is characterized in that the load of grid line described in each
The period of the gated sweep signal successively loads the clock signal to each clock control signal line, specifically includes:
Grid line described in each loads the period of the gated sweep signal, successively believes in addition to finally loading the clock
The identical clock signal of each clock control signal line load pulsewidth except number, to finally loading the clock signal
The clock signal that becomes larger of clock control signal line load pulsewidth；
Wherein, the clock signal of clock control signal line load of the clock signal is finally loaded beyond the grid
The pulsewidth of the failing edge of pole scanning signal is equal to, and finally loads the institute of the clock control signal line load of the clock signal
State pulsewidth and the institute of each clock control signal line load other than finally loading the clock signal of clock signal
State the difference of the pulsewidth of clock signal.
4. the driving method of display panel as claimed in claim 3, which is characterized in that finally load the institute of the clock signal
The pulsewidth for stating failing edge of the clock signal beyond the gated sweep signal of clock control signal line load, is greater than last
Load the 8.8% of total pulsewidth of the clock signal of the clock control signal line load of the clock signal.
5. the driving method of display panel as claimed in claim 4, which is characterized in that finally load the institute of the clock signal
The pulsewidth for stating failing edge of the clock signal beyond the gated sweep signal of clock control signal line load, not less than most
The 20.2% of total pulsewidth of the clock signal of the clock control signal line load of the clock signal is loaded afterwards.
6. such as the driving method of the described in any item display panels of claim 2-5, which is characterized in that in the display panel
In, the total number for each pixel unit connecting with the same grid line is not less than the total number of the grid line；
The closest data line of each gate signal lead-in is each sub-pixel unit charging of same color；Every
A grid line loads the period of the gated sweep signal, to it is corresponding described with the sub-pixel unit of the color when
Clock control signal wire finally loads the clock signal.
7. the driving method of display panel as claimed in claim 6, which is characterized in that each gate signal lead-in is closest
The data line be blue subpixels unit charging；The period of the gated sweep signal is loaded in each grid line,
The clock signal is finally loaded to the clock control signal line corresponding with the blue subpixels unit.
8. such as the driving method of the described in any item display panels of claim 2-5, which is characterized in that in the display panel
In, the total number for each pixel unit connecting with the same grid line is less than the total number of the grid line；
The closest data line of each gate signal lead-in is each sub-pixel unit charging of different colours；In the presence of
The two neighboring grid line loaded in the period of the gated sweep signal, and the clock letter is finally loaded in previous time period
Number the clock control signal line it is identical as the clock cable of the first load clock signal in latter time period,
And the pulsewidth of the clock signal of clock control signal line load cover the two neighboring gated sweep signal it
Between off time.
9. the driving method of display panel as claimed in claim 8, which is characterized in that added with every six adjacent grid lines
The period for carrying the gated sweep signal is a period；
The clock control signal line sequence that the clock signal is finally loaded within a period corresponds to red, blue, indigo plant
Color, red, green, green sub-pixels unit.
10. the driving method of display panel as claimed in claim 8, which is characterized in that with every three adjacent grid lines
The period for loading the gated sweep signal is a period；
The clock control signal line sequence that the clock signal is finally loaded within a period corresponds to red, green, indigo plant
Sub-pixels unit.
11. the driving method of display panel as claimed in claim 10, which is characterized in that in every two adjacent grid lines
The clock control of the clock signal is finally loaded in the period for loading the gated sweep signal, in previous time period
Signal wire and the clock cable of load first in the latter time period clock signal are all the same.
12. a kind of display panel, which is characterized in that using the driving side such as the described in any item display panels of claim 1-11
Method is driven.
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| CN108648681A (en) * | 2018-06-29 | 2018-10-12 | 厦门天马微电子有限公司 | A kind of display panel, its driving method, driving device and display device |
| CN108847179B (en) * | 2018-09-04 | 2022-10-04 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN109634010B (en) * | 2019-01-02 | 2022-01-18 | 南京京东方显示技术有限公司 | Display device |
| CN111445843B (en) * | 2019-01-17 | 2021-05-04 | 米彩股份有限公司 | Display driving module and driving method |
| CN110767186A (en) * | 2019-09-29 | 2020-02-07 | 福建华佳彩有限公司 | Driving method of dual-gate panel |
| CN111179872B (en) * | 2020-02-19 | 2021-08-20 | 福建华佳彩有限公司 | Pixel driving method |
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