CN104575384B - Active organic electroluminescent display device and its drive circuit - Google Patents
Active organic electroluminescent display device and its drive circuit Download PDFInfo
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Abstract
The present invention provides a kind of active organic electroluminescent display device and its drive circuit, and the M pixel that M pixel in each pixel cell of the active organic electroluminescent display device is connected in same data line, and each pixel cell is connected to M+1 bar scan lines altogether；First pixel of each pixel cell is connected to first scan line and Article 2 scan line in M+1 bar scan lines, the second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in M+1 bar scan lines, the m-th pixel of each pixel cell is connected to the M articles scan line and the M+1 articles scan line in M+1 articles of scan line, and often first pixel of all pixels unit is connected same scan line with the m-th pixel of all pixels unit in one-row pixels thereon in row pixel.The present invention is on the basis of data wire quantity is reduced, it is ensured that all pixels normally show, improves the display effect of active organic electroluminescent display device.
Description
Technical field
The present invention relates to flat display field, and in particular to a kind of active organic electroluminescent display device and its drive circuit.
Background technology
Active organic electroluminescent display device part (AMOLED) is active luminescent device.Compared to present main flow flat panel display
Thin Film Transistor-LCD (TFT-LCD), displayer has high-contrast, wide viewing angle, low-power consumption, thickness thinner
The advantages of.
In AMOLED panel, the data-signal of image element circuit is provided by driving chip；Fig. 1 is traditional active organic hair
The drive circuit schematic diagram of optical display unit, it is including data driver, scanner driver, pixel etc..Under normal circumstances, such as Fig. 1
Shown, a row pixel needs a data wire, and m row pixel then needs m data line.Because driving chip is relatively costly, and
The area of its cost and driving chip is proportional relation, and excessive data wire can take more chip areas, so as to improve drive
The cost of dynamic chip, so many companies can reduce the number of data wire using the structure of data-signal multiplexing (Mux/Demux)
Amount, so as to reduce the area of driving chip to reduce the cost of driving chip.
Fig. 2 is the drive circuit schematic diagram of the active organic electroluminescent display device using data-signal multiplexing structure, and it is in Fig. 1
On the basis of, increased m p-type switching transistor (V1, V2 ..., Vm-1, Vm) and 2 switching transistor control signal Sel_1
And Sel_2.This display reduces the quantity of the data wire of half data driver, and m/2 is reduced to from original m,
But under the conditions of some are specific, it is understood that there may be the abnormal problem of display.As shown in figure 3, Fig. 3 shows for the control signal of Fig. 2
It is intended to, is described as follows：In the T1 time periods：The initialization of circuit is carried out inside pixel 11 and pixel 12；Data letter on D1 ', D2 '
Number can be loaded into respectively in pixel 11 and pixel 12.In the t1 times, switching transistor V1 is opened, data wire D1 high level signals
(5V) is sent on the holding wire D1 ' in viewing area；In the t2 times, switching transistor V2 is opened, data signal line D1 high level
Signal is sent on the holding wire D2 ' in viewing area.In the T2 time periods：Data-signal on D1 ', D2 ' can respectively be loaded into picture
On element 21 and pixel 22.In the t3 times, switching transistor V1 is opened, and data wire D1 low levels (1V) is sent to the letter in viewing area
On number line D1 ', pixel 21 is loaded low level；Now holding wire D2 ' is in vacant state, due to the presence of parasitic capacitance, D2 '
The high level state in the T1 time periods can be kept, pixel 22 can be applied in high level；In the t4 times, switching transistor V2 is opened,
The low level signal of data wire D1 is sent on the holding wire D2 ' in viewing area；But because within the t3 times, pixel 22 is
High level is applied in, so in the t4 times, pixel 22 can be difficult to receive effective low level signal, and such displayer is just
Occur that display is abnormal.
Fig. 4 is the drive circuit schematic diagram of the active organic electroluminescent display device using data-signal multiplexing structure, and it is in Fig. 1
On the basis of, increased m p-type switching transistor (V1, V2 ..., Vm-1, Vm) and 3 switching transistor control signal Sel_
1st, Sel_2 and Sel_3.This panel reduces the quantity of the data wire of 2/3 data driver, is reduced to from original m
M/3.Fig. 5 is the control signal schematic diagram of Fig. 4；Sel_1, Sel_2 and Sel_3 are periodic signal, and S1, S2 ... Sn are scanning
Control signal；In T1, T2 ... in the Tn times, signal sequence is low in the time of Sel_1, Sel_2 and Sel_3 are in t1, t2 ... t3n
Level, the opening of the Tm orders that make switching transistor T1, T2 ..., by the signal sequence on data driver holding wire D1 ... Dm/3
It is assigned in the holding wire D1 ' ... Dm ' in viewing area.Equally, under the conditions of some are specific, due to the presence of parasitic capacitance
Displayer also occurs that some displays are abnormal.
The content of the invention
It is an object of the invention to provide a kind of active organic electroluminescent display device and its drive circuit, data line number is being reduced
Amount, while reducing driving chip cost, can avoid due to the display exception that parasitic capacitance is caused.
To achieve the above object, the present invention provides a kind of drive circuit of active organic electroluminescent display device, and described active have
Machine active display includes a plurality of data lines and multi-strip scanning line and intersects the multiple for limiting by the data wire and scan line
Pixel cell, wherein,
The direction parallel with each scan line is row, and the direction parallel with each data wire is row；
Often row pixel includes multiple pixel cells, and each pixel cell includes M pixel, and the M is just whole more than 1
Number；
M pixel in each pixel cell is connected to M pixel in same data line, and each pixel cell
M+1 bar scan lines are connected to altogether；
First scan line that first pixel of each pixel cell is connected in M+1 bar scan lines is scanned with Article 2
Line, the second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in M+1 bar scan lines, often
The m-th pixel of individual pixel cell is connected to the M articles scan line and the M+1 articles scan line in M+1 articles of scan line, also, often
First pixel of all pixels unit is connected together with the m-th pixel of all pixels unit in one-row pixels thereon in row pixel
One scan line.
Optionally, in the drive circuit of described active organic electroluminescent display device, the M is equal to 2；It is often every in row pixel
2 pixels are connected to a data line, and often row pixel is connected to 3 scan lines；Every each pixel cell in row pixel
First pixel is connected to first scan line and Article 2 scan line in 3 scan lines, often each pixel list in row pixel
The second pixel of unit is connected to Article 2 scan line and Article 3 scan line in 3 scan lines；Also, every institute in row pixel
First pixel and the second pixel of all pixels unit in one-row pixels thereon for having pixel cell are connected same scanning
Line.
Optionally, in the drive circuit of described active organic electroluminescent display device, first scan line, the Article 2
Scan line is chronologically successively arranged with Article 3 scan line, and three scan line mutual useful signal regions in sequential are mutual not
It is overlapping.
Optionally, in the drive circuit of described active organic electroluminescent display device, the M is equal to 3；It is often every in row pixel
3 pixels are connected to a data line, and often row pixel is connected to 4 scan lines；Every each pixel cell in row pixel
First pixel is connected to first scan line and Article 2 scan line in 4 scan lines, often each pixel list in row pixel
The second pixel of unit is connected to Article 2 scan line and Article 3 scan line in 4 scan lines, often each picture in row pixel
3rd pixel of plain unit is connected to Article 3 scan line and Article 4 scan line in 4 articles of scan lines；Also, every row pixel
First pixel of middle all pixels unit is connected same with the 3rd pixel of all pixels unit in one-row pixels thereon
Scan line.
Optionally, in the drive circuit of described active organic electroluminescent display device, first scan line, the Article 2
Scan line, Article 3 scan line and Article 4 scan line are chronologically successively arranged, and four scan lines are mutual in sequential has
Effect signal area is non-overlapping.
Optionally, in the drive circuit of described active organic electroluminescent display device, a plurality of data lines is connected to number
According to driver, the data driver provides data-signal.
Optionally, in the drive circuit of described active organic electroluminescent display device, the multi-strip scanning line is connected to sweeps
Driver is retouched, the scanner driver provides scanning signal.
Optionally, in the drive circuit of described active organic electroluminescent display device, each pixel is connected to two and sweeps
Line is retouched, the initialization of circuit is carried out inside pixel in the presence of a scan line, the data in the presence of another scan line
Line carries out discharge and recharge to pixel.
Accordingly, the present invention also provides a kind of active organic electroluminescent display device, including above-mentioned active organic electroluminescent display device
Drive circuit.
Compared with prior art, in the drive circuit of the active organic electroluminescent display device that the present invention is provided, often in row pixel
M pixel of each pixel cell is connected to same data line, and M pixel of each pixel cell is connected to M+1 bars altogether
Scan line, also, often first pixel of all pixels unit and all pixels unit in one-row pixels thereon in row pixel
M-th pixel connects same scan line, i.e. at least each two pixel shares a data line, reduces the quantity of data wire,
So as to reduce the area of driving chip, the cost of driving chip is reduced, and often capable pixel is connected to the scanning of M+1 bars
Line, that is, connect at least three scan lines, each pixel is connected to two scan lines respectively, it is to avoid the reduction of factor data line and band
The display abnormal problem for coming so that all pixels normally show, improves the display effect of active organic electroluminescent display device.
Brief description of the drawings
Fig. 1 is the drive circuit schematic diagram of traditional active organic electroluminescent display device.
Fig. 2 is the drive circuit schematic diagram of the active organic electroluminescent display device using data-signal multiplexing structure.
Fig. 3 is the control signal schematic diagram of Fig. 2.
Fig. 4 is the drive circuit schematic diagram of the active organic electroluminescent display device using data-signal multiplexing structure.
Fig. 5 is the control signal schematic diagram of Fig. 4.
The drive circuit schematic diagram of the active organic electroluminescent display device that Fig. 6 is provided by the embodiment of the present invention one.
The control signal schematic diagram of the drive circuit that Fig. 7 is provided by the embodiment of the present invention one.
The drive circuit schematic diagram of the active organic electroluminescent display device that Fig. 8 is provided by the embodiment of the present invention two.
The control signal schematic diagram of the drive circuit that Fig. 9 is provided by the embodiment of the present invention two.
Specific embodiment
To make present disclosure more clear understandable, below in conjunction with Figure of description, present disclosure is done into one
Step explanation.Certainly the invention is not limited in the specific embodiment, general replacement well known to the skilled artisan in the art is also contained
Lid is within the scope of the present invention.
Secondly, the present invention has carried out detailed statement using schematic diagram, when present example is described in detail, for the ease of saying
Bright, schematic diagram, should not be to this as restriction of the invention not according to general ratio partial enlargement.
A kind of drive circuit of active organic electroluminescent display device provided by the present invention, the active organic electroluminescent display device
Intersect the multiple pixels for limiting including a plurality of data lines and multi-strip scanning line and by the data wire and scan line, often row pixel
Including multiple pixel cells, each pixel cell includes M pixel, and the M is the positive integer more than 1；In each pixel cell
M pixel being connected in same data line, and each pixel cell of M pixel be connected to M+1 bar scan lines altogether；Often
First pixel of individual pixel cell is connected to first scan line and Article 2 scan line, each picture in M+1 bar scan lines
The second pixel of plain unit is connected to Article 2 scan line and Article 3 scan line, each pixel list in M+1 bar scan lines
The m-th pixel of unit is connected to the M articles scan line and the M+1 articles scan line in M+1 articles of scan line, also, often in row pixel
First pixel of all pixels unit is connected same scanning with the m-th pixel of all pixels unit in one-row pixels thereon
Line；Wherein, the direction parallel with each scan line is row, and the direction parallel with each data wire is row.The of the first row pixel connection
One scan line is only attached to first pixel of each pixel cell in the first row pixel, and the pixel with other rows is not shared.
The number of the pixel that each pixel cell includes determines according to the actual needs.The present invention is reducing data wire quantity, reduces
While driving chip cost, can avoid due to the display exception that parasitic capacitance is caused.Enter below by way of specific embodiment
Row explanation.
【Embodiment one】
In the present embodiment, M=2, i.e., described pixel cell includes 2 pixels.Each pixel cell includes 2 pixels, often
Every 2 pixels are connected to a data line in row pixel, and often row pixel is connected to 3 scan lines.Often in row pixel each
First pixel of pixel cell is connected to first scan line and Article 2 scan line in 3 scan lines, often in row pixel
The second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in 3 scan lines；Also, it is every
First pixel of all pixels unit is connected with the second pixel of all pixels unit in one-row pixels thereon in row pixel
Same scan line.That is, often the pixel of odd bits is connected to first scan line and Article 2 scan line, even bit in row pixel
Pixel be connected to Article 2 scan line and Article 3 scan line, and first scan line is additionally coupled to lastrow pixel simultaneously
The pixel of middle even bit；First scan line of the first row pixel connection is only attached to the pixel of odd bits in the first row pixel,
The pixel with other rows is not shared.
Specifically, Fig. 6 is refer to, the driving electricity of its active organic electroluminescent display device provided by the embodiment of the present invention one
Road schematic diagram.As shown in fig. 6, the active organic electroluminescent display device include a plurality of data lines D1, D2 ..., D (m/2), it is a plurality of
Scan line S0, S11, S12, S21, S22 ..., S (N-1) 2, Sn1, Sn2, and intersect what is limited by data wire and scan line
Multiple pixels P11, P12 ..., P1 (m-1), P1m, P21, P22 ..., P2 (m-1), P2m, Pn1, Pn2 ..., Pn (m-
1)、Pnm.By pixel P21, P22 of the 2nd row ..., be illustrated as a example by P2 (m-1), P2m：Each pixel cell 30 includes 2
Individual pixel；Every 2 pixels are connected to a data line, and such as pixel P21, P22 is connected to data wire D1, and pixel P23, P24 connects
Data wire D2 ... ... is connected to, pixel P2 (m-1), P2m are connected to data wire D (m/2)；And the row pixel is connected to 3 scannings
Line S12, S21, S22；Pixel P21, P23 of odd bits ..., P2 (m-1) is connected to first scan line S12 and Article 2 is swept
Retouch line S21, pixel P22, P24 of even bit ..., P2m be connected to Article 2 scan line S21 and Article 3 scan line S22, and
And first scan line S12 be additionally coupled to simultaneously even bit in the first row pixel pixel P12, P14 ..., P1m；The first row
Pixel connection first scan line S0 be only attached to odd bits in the first row pixel pixel P11, P13 ..., P1 (m-1),
The pixel with other rows is not shared.Also, first scan line S12, Article 2 scan line S21 and Article 3 scan line
S22 is chronologically successively arranged, and three scan line mutual useful signal regions in sequential are non-overlapping.
In sum, according to overall drive circuit, pixel P11, P13 of scan signal line S0 and the first row ..., P1
(m-1) connect；The all of pixel connection of the first row such as scan signal line S11, S12 and pixel P11, P12；Scan signal line S12
Simultaneously and the second row pixel P21, P23 ..., P2 (m-1) connection；The pixel Pn1 of scan signal line S (n-1) 2 and line n,
Pn3 ..., Pn (m-1) connection；The all of pixel connection of the line n such as scan signal line Sn1, Sn2 and pixel Pn1, Pn2.
In the present embodiment, a plurality of data lines is connected to data driver 10, and the data driver 10 provides data
Signal；The multi-strip scanning line is connected to scanner driver 20, and the scanner driver 20 provides scanning signal；And each picture
Element is connected to two scan lines, and the initialization of circuit is carried out inside pixel in the presence of a scan line, is swept at another
Data wire carries out discharge and recharge to pixel in the presence of retouching line.
The control signal schematic diagram of the drive circuit that Fig. 7 is provided by the embodiment of the present invention one, as shown in fig. 7, its work
Step is as follows：
In the t0 time periods：Scan line S0 is low level, pixel P11, P13 of the first row ..., the pixel of P1 (m-1) electricity
The initialization section on road is strobed, and image element circuit is initialized.
In the t11 time periods：Scan line S11 be low level, pixel P11, P13 of the first row ..., the pixel of P1 (m-1)
The data sampling part of circuit is strobed, and data wire D1 charges to pixel P11, and data wire D2 fills to pixel P13
Electricity ... ..., data wire Dm/2 charges to pixel P1 (m-1), and these pixels normally show.
Meanwhile, pixel P12, P14 of the first row ..., the initialization section of the image element circuit of P1m be strobed, pixel electricity
Road is initialized.
In the t12 time periods：Scan line S12 be low level, pixel P12, P14 of the first row ..., the image element circuit of P1m
Data sampling part be strobed, data wire D1 charges to pixel P12, and data wire D2 fills to pixel P14
Electricity ... ..., data wire Dm/2 charges to pixel P1m, and these pixels normally show.
Meanwhile, pixel P21, P23 of the second row ..., the initialization section of the image element circuit of P2 (m-1) be strobed, as
Plain circuit is initialized.
By that analogy, in the tn1 time periods：Pixel Pn1, Pn3 of line n ..., the data of the image element circuit of Pn (m-1)
Sampling section is strobed, and data wire D1 charges to pixel Pn1, and data wire D2 charges to pixel Pn3 ... ..., data
Line Dm/2 charges to pixel Pn (m-1), and these pixels normally show.Meanwhile, pixel Pn2, Pn4 of line n ..., Pnm
The initialization section of image element circuit be strobed, image element circuit is initialized.
In the tn2 time periods：Pixel Pn2, Pn4 of line n ..., the data sampling part of the image element circuit of Pnm is chosen
Logical, data wire D1 charges to pixel Pn2, and data wire D2 charges to pixel Pn4 ... ..., and data wire Dm/2 is to pixel
Pnm is charged, and these pixels normally show.
Compared with the drive circuit of traditional active organic electroluminescent display device, the active organic light emission that the present embodiment is provided
The drive circuit of display, each two pixel shares a data line, reduces the data wire of half, so as to reduce driving core
The area of piece, reduces the cost of driving chip, and all pixels can normally show, it is to avoid used in conventional art
The display exception that the drive circuit of the active organic electroluminescent display device of data-signal multiplexing structure is caused, improves active organic hair
The display effect of optical display unit.
【Embodiment two】
On the basis of embodiment one, M=3, i.e., described pixel cell includes 3 pixels.Each pixel cell includes 3
Pixel, often every 3 pixels are connected to a data line in row pixel, and often row pixel is connected to 4 scan lines.Every row pixel
In first pixel of each pixel cell be connected to first scan line and Article 2 scan line, second in 4 scan lines
Pixel is connected to Article 2 scan line and Article 3 scan line in 4 scan lines, and the 3rd pixel is connected in 4 articles of scan lines the
Three scan lines and Article 4 scan line.Also, often first pixel of all pixels unit and its lastrow picture in row pixel
The 3rd pixel connection same scan line of all pixels unit in element, i.e. first scan line is additionally coupled to one simultaneously
3rd pixel of each pixel cell in row pixel.First scan line of the first row pixel connection is only attached to the first row picture
First pixel of each pixel cell in element, the pixel with other rows is not shared.Compared with embodiment one, number is again reduced
According to the quantity of line, but the quantity of scan line is increased simultaneously.
Specifically, Fig. 8 is refer to, the driving electricity of its active organic electroluminescent display device provided by the embodiment of the present invention two
Road schematic diagram.As shown in figure 8, the active organic electroluminescent display device include a plurality of data lines D1, D2 ..., D (m/3), it is a plurality of
Scan line S0, S11, S12, S13, S21, S22, S23 ..., S (N-1) 3, Sn1, Sn2, Sn3, and by data wire and scanning
Line intersect limit multiple pixels P11, P12, P13 ..., P1 (m-2), P1 (m-1), P1m, P21, P22, P23 ..., P2
(m-2), P2 (m-1), P2m, Pn1, Pn2, Pn3 ..., Pn (m-2), Pn (m-1), Pnm.Same pixel P21 with the 2nd row,
P22, P23 ..., be illustrated as a example by P2 (m-2), P2 (m-1), P2m：Each pixel cell 30 includes 3 pixels；Every 3
Pixel is connected to a data line, and such as pixel P21, P22, P23 are connected to data wire D1, and pixel P24, P25, P26 are connected to
Data wire D2 ... ..., pixel P2 (m-2), P2 (m-1), P2m are connected to data wire D (m/3)；And the row pixel is connected to 4
Scan line S13, S21, S22, S23；First pixel P21, P24 of each pixel cell ..., P2 (m-2) be connected to first
Bar scan line S13 and Article 2 scan line S21, second pixel P22, P25 ..., P2 (m-1) be connected to Article 2 scan line
S21 and Article 3 scan line S22, the 3rd pixel P23, P26 ..., P2m be connected to Article 3 scan line S22 and Article 4
Scan line S23, and first article of scan line S13 is while be additionally coupled to the 3rd pixel of each pixel cell in the first row pixel
P13、P16、……、P1m；First scan line S0 of the first row pixel connection is only attached to each pixel list in the first row pixel
First pixel P11, P14 of unit ..., P1 (m-2), do not shared with the pixel of other rows.Also, first scan line
S13, Article 2 scan line S21, Article 3 scan line S22 and the 4th scan line S23 are chronologically successively arranged, and four scan lines
Mutual useful signal region is non-overlapping in sequential.
In sum, according to overall drive circuit, pixel P11, P14 of scan signal line S0 and the first row ..., P1
(m-2) connect；Pixel P11, P12 of scan signal line S11 and the first row, P14, P15 ..., P1 (m-2), P1 (m-1) even
Connect；Pixel P12, P13 of S12 and the first row, P15, P16 ..., P1 (m-1), P1m connection；The pixel of S13 and the first row
P13, P16 ..., P1m connection；Scan signal line S13 simultaneously and the second row pixel P21, P24 ..., P2 (m-2) connection；
Pixel Pn1, Pn4 of scan signal line S (n-1) 3 and line n ..., Pn (m-2) connection；Scan signal line Sn1 and line n
Pixel Pn1, Pn2, n4, Pn5 ..., n (m-2), n (m-1) connection；Pixel Pn2, Pn3 of scan signal line Sn2 and line n,
N5, Pn6 ..., Pn (m-1), Pnm connection；Pixel Pn3, Pn6 of scan signal line Sn3 and line n ..., Pnm connection.
In the present embodiment, a plurality of data lines is connected to data driver 10, and the data driver 10 provides data
Signal；The multi-strip scanning line is connected to scanner driver 20, and the scanner driver 20 provides scanning signal；And each picture
Element is connected to two scan lines, and the initialization of circuit is carried out inside pixel in the presence of a scan line, is swept at another
Data wire carries out discharge and recharge to pixel in the presence of retouching line.
The control signal schematic diagram of the drive circuit that Fig. 9 is provided by the embodiment of the present invention two, as shown in fig. 7, its work
Step is as follows：
In the t0 time periods：Scan line S0 is low level, pixel P11, P14 of the first row ..., the pixel of P1 (m-2) electricity
The initialization section on road is strobed, and image element circuit is initialized.
In the t11 time periods：Scan line S11 be low level, pixel P11, P14 of the first row ..., the pixel of P1 (m-2)
The data sampling part of circuit is strobed, and data wire D1 charges to pixel P11, and data wire D2 is carried out to image element circuit P14
Charge ... ..., data wire Dm/3 charges to image element circuit P1 (m-2) so that these pixels normally show.
Meanwhile, pixel P12, P15 of the first row ..., the initialization section of the image element circuit of P1 (m-1) be strobed, as
Plain circuit is initialized.
In the t12 time periods：Scan line S12 be low level, pixel P12, P15 of the first row ..., the pixel of P1 (m-1)
The data sampling part of circuit is strobed, and data wire D1 charges to pixel P12, and data wire D2 fills to pixel P15
Electricity ... ..., data wire Dm/3 charges to pixel P1 (m-1) so that these pixels normally show.
Meanwhile, pixel P13, P16 of the first row ..., the initialization section of the image element circuit of P1m be strobed, pixel electricity
Road is initialized.
In the t13 time periods：Scan line S13 is low level, pixel P13, P16 of the first row ..., the pixel of P1m-1 electricity
The data sampling part on road is strobed, and data wire D1 charges to pixel P13, and data wire D2 fills to image element circuit P16
Electricity ... ..., data wire Dm/3 charges to image element circuit P1m-1 so that these pixels normally show.
Meanwhile, pixel P21, P24 of the second row ..., the initialization section of the image element circuit of P2 (m-2) be strobed, as
Plain circuit is initialized.
By that analogy, in the tn1 time periods：Pixel Pn1, Pn4 of line n ..., the data of the image element circuit of Pn (m-2)
Sampling section is strobed, and data wire D1 charges to pixel Pn1, and data wire D2 charges to pixel Pn4 ... ..., data
Line Dm/3 charges to image element circuit Pn (m-2) so that these pixels normally show.Meanwhile, the pixel Pn2 of line n,
Pn5 ..., the initialization section of the image element circuit of Pn (m-1) be strobed, image element circuit is initialized.
In the tn2 time periods：Pixel Pn2, Pn5 of line n ..., the data sampling part quilt of the image element circuit of Pn (m-1)
Gating, data wire D1 charges to pixel Pn2, and data wire D2 charges to pixel Pn5 ... ..., and data wire Dm/3 is to picture
Plain circuit Pn (m-1) is charged, and then these pixels normally show.Meanwhile, pixel Pn3, Pn6 of line n ..., Pnm
The initialization section of image element circuit is strobed, and image element circuit is initialized
In the tn3 time periods：Pixel Pn3, Pn6 of line n ..., the data sampling part of the image element circuit of Pnm is chosen
Logical, data wire D1 charges to pixel Pn3, and data wire D2 charges to pixel Pn6 ... ..., and data wire Dm/3 is to pixel
Circuit Pnm-1 is charged so that these pixels normally show.
Compared with the drive circuit of traditional active organic electroluminescent display device, the active organic light emission that the present embodiment is provided
The drive circuit of display, every three pixels share a data line, 2/3rds data wire are reduced, so as to reduce drive
The area of dynamic chip, reduces the cost of driving chip, and all pixels can normally show, it is to avoid in conventional art
Using the display exception that causes of drive circuit of the active organic electroluminescent display device of data-signal multiplexing structure, improve active has
The display effect of machine active display.
Accordingly, the present invention also provides a kind of active organic electroluminescent display device, including above-mentioned active organic light emitting display
The drive circuit of device.
In sum, in the drive circuit of the active organic electroluminescent display device that the present invention is provided, every each picture in row pixel
Plain unit is connected to a data line, and each pixel cell includes M pixel, and M is the positive integer more than 1, i.e., at least every
Two pixels share a data line, reduce the quantity of data wire, so as to reduce the area of driving chip, reduce driving
The cost of chip, and often capable pixel is connected to M+1 bar scan lines, that is, connect at least three scan lines, each pixel point
Lian Jie two scan lines, it is to avoid the reduction of factor data line and the display abnormal problem that brings so that all pixels normally show
Show, improve the display effect of active organic electroluminescent display device.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (8)
1. a kind of drive circuit of active organic electroluminescent display device, it is characterised in that the active organic electroluminescent display device includes
A plurality of data lines and multi-strip scanning line and the multiple pixel cells limited by the data wire and scan line intersection, wherein,
The direction parallel with each scan line is row, and the direction parallel with each data wire is row；
Often row pixel includes multiple pixel cells, and each pixel cell includes M pixel, and the M is the positive integer more than 1；
The M pixel that M pixel in each pixel cell is connected in same data line, and each pixel cell connects altogether
It is connected to M+1 bar scan lines；
First pixel of each pixel cell is connected to first scan line and Article 2 scan line in M+1 bar scan lines,
The second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in M+1 bar scan lines, each
The m-th pixel of pixel cell is connected to the M articles scan line and the M+1 articles scan line in M+1 articles of scan line, also, often goes
First pixel of all pixels unit is connected same with the m-th pixel of all pixels unit in one-row pixels thereon in pixel
Bar scan line；
Each pixel is connected to two scan lines, and the initialization of circuit is carried out inside pixel in the presence of a scan line,
Data wire carries out discharge and recharge to pixel in the presence of another scan line.
2. the drive circuit of active organic electroluminescent display device as claimed in claim 1, it is characterised in that the M is equal to 2；Often
Every 2 pixels are connected to a data line in row pixel, and often row pixel is connected to 3 scan lines；Often in row pixel each
First pixel of pixel cell is connected to first scan line and Article 2 scan line in 3 scan lines, often in row pixel
The second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in 3 scan lines；Also, it is every
First pixel of all pixels unit is connected with the second pixel of all pixels unit in one-row pixels thereon in row pixel
Same scan line.
3. the drive circuit of active organic electroluminescent display device as claimed in claim 2, it is characterised in that first scanning
Line, Article 2 scan line and Article 3 scan line are chronologically successively arranged, and three scan line mutual effective letters in sequential
Number region is non-overlapping.
4. the drive circuit of active organic electroluminescent display device as claimed in claim 1, it is characterised in that the M is equal to 3；Often
Every 3 pixels are connected to a data line in row pixel, and often row pixel is connected to 4 scan lines；Often in row pixel each
First pixel of pixel cell is connected to first scan line and Article 2 scan line in 4 scan lines, often in row pixel
The second pixel of each pixel cell is connected to Article 2 scan line and Article 3 scan line in 4 scan lines, often capable picture
The 3rd pixel of each pixel cell is connected to Article 3 scan line and Article 4 scan line in 4 articles of scan lines in element；And
And, often in row pixel first pixel of all pixels unit and all pixels unit in one-row pixels thereon the 3rd pixel
Connection same scan line.
5. the drive circuit of active organic electroluminescent display device as claimed in claim 4, it is characterised in that first scanning
Line, Article 2 scan line, Article 3 scan line and Article 4 scan line are chronologically successively arranged, and four scan lines are in sequential
Mutual useful signal region is non-overlapping.
6. the drive circuit of active organic electroluminescent display device as claimed in claim 1, it is characterised in that a plurality of data lines
Data driver is connected to, the data driver provides data-signal.
7. the drive circuit of active organic electroluminescent display device as claimed in claim 1, it is characterised in that the multi-strip scanning line
Scanner driver is connected to, the scanner driver provides scanning signal.
8. a kind of active organic electroluminescent display device, it is characterised in that including having as described in any one in claim 1~7
The drive circuit of source OLED.
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| CN201510024427.XA CN104575384B (en) | 2015-01-17 | 2015-01-17 | Active organic electroluminescent display device and its drive circuit |
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| CN105096809B (en) * | 2015-09-18 | 2017-10-31 | 京东方科技集团股份有限公司 | Display base plate and its driving method, display device |
| CN108320704B (en) * | 2017-01-17 | 2020-12-25 | 上海和辉光电有限公司 | Display panel device |
| CN208834059U (en) * | 2018-11-06 | 2019-05-07 | 惠科股份有限公司 | Pixel-driving circuit, array substrate and display device |
| CN109637453B (en) * | 2019-01-31 | 2021-03-09 | 上海天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN109637458B (en) * | 2019-02-26 | 2020-10-16 | 深圳市华星光电半导体显示技术有限公司 | AMOLED panel and driving method |
| CN110619840B (en) * | 2019-10-31 | 2022-12-20 | 武汉天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN113421533A (en) * | 2021-06-09 | 2021-09-21 | Tcl华星光电技术有限公司 | Pixel driving structure, driving method and display device |
| CN115132077B (en) * | 2022-05-25 | 2023-10-20 | 惠科股份有限公司 | Driving substrate, display panel and display device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1702711A (en) * | 2004-05-25 | 2005-11-30 | 三星Sdi株式会社 | Display and driving method thereof |
| CN102298900A (en) * | 2010-06-28 | 2011-12-28 | 三星移动显示器株式会社 | Organic light emitting display and driving method thereof |
| CN102856321A (en) * | 2012-08-28 | 2013-01-02 | 北京京东方光电科技有限公司 | Thin film transistor array substrate and display device |
| CN103886826A (en) * | 2012-12-21 | 2014-06-25 | 上海天马微电子有限公司 | Organic light emitting diode display array |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100604061B1 (en) * | 2004-12-09 | 2006-07-24 | 삼성에스디아이 주식회사 | Pixel circuit and light emitting display |
-
2015
- 2015-01-17 CN CN201510024427.XA patent/CN104575384B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1702711A (en) * | 2004-05-25 | 2005-11-30 | 三星Sdi株式会社 | Display and driving method thereof |
| CN102298900A (en) * | 2010-06-28 | 2011-12-28 | 三星移动显示器株式会社 | Organic light emitting display and driving method thereof |
| CN102856321A (en) * | 2012-08-28 | 2013-01-02 | 北京京东方光电科技有限公司 | Thin film transistor array substrate and display device |
| CN103886826A (en) * | 2012-12-21 | 2014-06-25 | 上海天马微电子有限公司 | Organic light emitting diode display array |
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Effective date of registration: 20201208 Address after: No.146 Tianying Road, high tech Zone, Chengdu, Sichuan Province Patentee after: Chengdu CHENXIAN photoelectric Co.,Ltd. Address before: 215300, 188, Feng Feng Road, Kunshan hi tech Zone, Kunshan, Suzhou, Jiangsu, Jiangsu Patentee before: Kunshan New Flat Panel Display Technology Center Co.,Ltd. Patentee before: KunShan Go-Visionox Opto-Electronics Co.,Ltd. |