CN102955309B - A kind of array base palte, display panel, display device and driving method thereof - Google Patents
A kind of array base palte, display panel, display device and driving method thereof Download PDFInfo
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- CN102955309B CN102955309B CN201210390024.3A CN201210390024A CN102955309B CN 102955309 B CN102955309 B CN 102955309B CN 201210390024 A CN201210390024 A CN 201210390024A CN 102955309 B CN102955309 B CN 102955309B
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Abstract
The present invention relates to display technique field, disclose a kind of array base palte, display panel, display device and driving method thereof.Its array base palte comprises: grid line, data line, pixel electrode and pixel switch, the source electrode of each pixel switch is connected with a pixel electrode, be positioned at same data line both sides and the two row pixel electrodes adjacent with described data line are connected with described data line by the drain electrode of pixel switch, often row pixel electrode is connected with a grid line by the grid of pixel switch; With in two pixel electrodes that a line is adjacent, a pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected; In two pixel electrodes that same row are adjacent, a pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected.The present invention utilizes lower-cost row reversing drive circuit, achieves a reversion display effect, improves the quality of display frame.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of array base palte, display panel, display device and driving method thereof.
Background technology
TFT-LCD(Thin Film Transistor (TFT)-liquid crystal display), OLED(Organic Light Emitting Diode) array base palte of the display device such as display device, Electronic Paper adopts line-column matrix drive pattern, concrete intersects to form line-column matrix by the capable grid line of N and M column data line, and TFT(Thin Film Transistor (TFT) is set at each infall), realize the control to each pixel electrode in line-column matrix by TFT.
Under the prerequisite that resolution is constant, in order to reduce the cost of product, the quantity reducing data line can be considered.For reaching this purpose, prior art propose a kind of as shown in Figure 1 based on DualGate(double grid) array base-plate structure, its specific implementation is as follows:
Suppose that the resolution of display panel is N*M, namely have N*M pixel electrode.Array base palte comprises the capable grid line (G of N
1~ G
n), M column data line (D
1~ D
m) and the TFT of N*2M single grid.Wherein, a line grid line and data line line infall are provided with 2 TFT, and a TFT is the TFT(TFT that grid malleation is opened
+represent), another TFT is the TFT(TFT that grid negative pressure is opened
-represent).
Its principle of work is: within the scan period of a grid line, and the first half frame signal of this grid line is forward cut-in voltage, as the TFT that connected grid malleation is opened
+enable signal, make and TFT
+data drive signal is exported to TFT by the data line connected
+corresponding pixel electrode 10; The later half frame signal of this grid line is negative sense cut-in voltage, as the TFT that connected grid negative pressure is opened
-enable signal, make and TFT
-connect data line by data drive signal by exporting to TFT
-corresponding pixel electrode 10.
In order to prevent direct current from blocking effect, reduce direct current and remain, generally adopt positive and negative electrode sex reversal type of drive to the driving of display device pixel electrode, common inversion driving mode comprises: frame reversion, row reversion, row reversion and some reversion.
For the display device of DualGate structure, the some inversion driving mode display effect that can reach is more excellent than other type of drive, but the driving circuit realizing putting inversion driving mode to realize cost high.At present, the display device for DualGate structure does not also adopt the reversing drive circuit of low cost to realize the solution of high-quality display effect.
Summary of the invention
The object of this invention is to provide a kind of array base palte, display panel, display device and driving method thereof, the problem that reversing drive circuit cost and display effect in order to solve DualGate structural display devices of the prior art cannot be taken into account.
The object of the invention is to be achieved through the following technical solutions:
A kind of array base palte, comprises grid line, data line, pixel electrode and pixel switch:
The source electrode of each pixel switch is connected with a pixel electrode, be positioned at same data line both sides and the two row pixel electrodes adjacent with described data line are connected with described data line by the drain electrode of pixel switch, often row pixel electrode is connected with a grid line by the grid of pixel switch;
With two pixel electrodes that a line is adjacent, one of them pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected;
Two pixel electrodes that same row are adjacent, one of them pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected.
A kind of display panel, comprises above-mentioned array base palte.
A kind of display device, comprises above-mentioned display panel, and for driving the row reversing drive circuit of double grid DualGate array of structures substrate;
The grid line drive end of described row reversing drive circuit is connected with the grid line of described array base palte, and the data line drive end of described row reversing drive circuit is connected with the data line of described array base palte.
A driving method for above-mentioned display device, within the scan period of a grid line, the described scan period is divided into the first period and the second period, and the method comprises:
In first period of described scan period, the grid line drive end of described row reversing drive circuit exports forward cut-in voltage to a grid line of array base palte, and the data line drive end of described row reversing drive circuit exports malleation data-signal to the data line of described array base palte;
In second period of described scan period, the grid line drive end of described row reversing drive circuit exports negative sense cut-in voltage to described grid line, and the data line drive end of described row reversing drive circuit exports negative pressure data-signal to the data line of described array base palte.
In the display device comprising DualGate array of structures substrate, row reversing drive circuit to realize cost lower, in order to the type of drive utilizing row reversing drive circuit to realize some reversion, on traditional DualGate architecture basics, the invention provides a kind of array base palte, the pixel switch that the pixel switch adopting alternatively distributed grid negative pressure to open and grid malleation are opened controls the On/Off of pixel electrode.Therefore, array base palte provided by the invention, display panel, display device and driving method thereof utilize lower-cost row reversing drive circuit, achieve a reversion display effect, improve the quality of display frame.
Accompanying drawing explanation
Fig. 1 is existing DualGate array base-plate structure schematic diagram;
The first array base-plate structure schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The second array base-plate structure schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The third array base-plate structure schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The display device structure schematic diagram that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the drive singal sequential chart for driving the display device shown in Fig. 5;
The point inversion effect schematic diagram of the display device shown in Fig. 6 that Fig. 7 provides for the embodiment of the present invention.
Embodiment
In order to the display effect using row inversion driving mode to realize some reversion, realize low cost, high display frame quality, on the array base palte basis of traditional DualGate structure, the embodiment of the present invention provides a kind of new array base-plate structure, comprising: grid line, data line, pixel electrode and pixel switch.
For the array base palte shown in Fig. 2, comprise grid line (G
1, G
2, G
3), data line (D
1, D
2, D
3), pixel electrode (P
11~ P
36) and pixel switch (201 and 202), the source electrode of each pixel switch is connected with a pixel electrode, be positioned at same data line both sides and the two row pixel electrodes adjacent with described data line are connected with described data line by the drain electrode of pixel switch, often row pixel electrode is connected with a grid line by the grid of pixel switch.
In array base palte, pixel switch is arranged at the infall of grid line and data line usually, as shown in Figure 2.
For two pixel electrodes (as shown in dotted line frame in Fig. 2 203) that same a line is adjacent, the pixel switch that one of them and grid malleation are opened (supposes 202 pixel switches opened for grid malleation, as follows) connect, the pixel switch (supposing 201 pixel switches opened for grid negative pressure, as follows) that another and grid negative pressure are opened connects.
For two pixel electrodes (as shown in dotted line frame in Fig. 2 204) that same row are adjacent, the pixel switch 202 that one of them and grid malleation are opened is connected, and the pixel switch 201 that another and grid negative pressure are opened is connected.
It should be pointed out that the array base-plate structure shown in Fig. 2 is the one citing of the array base-plate structure that the embodiment of the present invention provides, but not limiting the scope of the present invention.Concrete, the grid line quantity on array base palte and data line quantity are not limited only to 3, and the annexation of grid line, data line and pixel electrode is also not limited only to shown in Fig. 2.
Such as, shown in Fig. 2, be positioned at the below of this row pixel electrode with the grid line that often row pixel electrode is connected.But between grid line and pixel electrode except the annexation shown in Fig. 2, as shown in Figure 3, the top of this row pixel electrode can also be positioned at the grid line that often row pixel electrode is connected.Also as shown in Figure 4, the below of this row pixel electrode can be positioned at the grid line of odd-line pixels Electrode connection; The top of this row pixel electrode is positioned at the grid line of even rows Electrode connection; Or, be positioned at the top of this row pixel electrode with the grid line of odd-line pixels Electrode connection; The below of this row pixel electrode is positioned at the grid line of even rows Electrode connection.Or meet any one annexation of above-mentioned text description.It should be noted that, above-mentioned " top " and " below " specifically refers to, if array base palte has the capable pixel electrode of n, then the below that the grid line be connected with the (n-1)th row pixel electrode is positioned at this row pixel electrode refers to, this grid line is between the (n-1)th row pixel electrode and n-th line pixel electrode; The top that the grid line be connected with the (n-1)th row pixel electrode is positioned at this row pixel electrode refers to, this grid line is between the (n-1)th row pixel electrode and the n-th-2 row pixel electrode.
Pixel switch described in each embodiment of the invention described above can be the pixel switch of multi-grid structure, also can be the pixel switch of device of single gate structure.
Pixel switch described in each embodiment of the invention described above can be any semiconductor switch structure that can control corresponding pixel electrode On/Off.Preferably, can be TFT.
Accordingly, the TFT that grid malleation is opened is N channel-type TFT, and the TFT that grid negative pressure is opened is P channel-type TFT.
The embodiment of the present invention also provides a kind of display panel, comprises the array base palte described in above-mentioned any embodiment.
The embodiment of the present invention also provides a kind of display device, comprises above-mentioned display panel, and for driving the row reversing drive circuit of DualGate array of structures substrate.The grid line drive end of described row reversing drive circuit is connected with the grid line of described array base palte, and the data line drive end of described row reversing drive circuit is connected with the data line of described array base palte.
Display device is as shown in Figure 5 example, and array base-plate structure is wherein same as shown in Figure 2, the grid line drive end 206 of row reversing drive circuit 205 and the grid line (G of array base palte
1, G
2, G
3) connect, the data line drive end 207 of row reversing drive circuit 205 and the data line (D of array base palte
1, D
2, D
3) connect.
Wherein, the grid line drive end 206 of row reversing drive circuit 205 is for the grid line (G line by line to array base palte
1, G
2, G
3) exporting cut-in voltage, the data line drive end 207 of row reversing drive circuit 205 is for the data line (D to array base palte
1, D
2, D
3) export as the positive voltage of data-signal or negative voltage.Concrete, when grid line drive end 206 is to the grid line (G of array base palte
1, G
2, G
3) export forward cut-in voltage time, data line drive end 207 is to the data line (D of array base palte
1, D
2, D
3) export as the positive voltage of data-signal, when grid line drive end 206 is to the grid line (G of array base palte
1, G
2, G
3) export negative sense cut-in voltage time, data line drive end 207 is to the data line (D of array base palte
1, D
2, D
3) export as the negative voltage of data-signal.
In the embodiment of the present invention, the specific implementation structure of row reversing drive circuit 205 can be realized by the row reversing drive circuit of the display device of existing driving DualGate structure, and its particular circuit configurations repeats no more in the present invention.
The embodiment of the present invention also provides a kind of driving method of above-mentioned display device.Within the scan period of a grid line, the scan period is divided into the first period and the second period, and the method comprises:
In first period of described scan period, the grid line drive end of described row reversing drive circuit exports forward cut-in voltage to a grid line of array base palte, and the data line drive end of described row reversing drive circuit exports malleation data-signal to the data line of described array base palte;
In second period of described scan period, the grid line drive end of described row reversing drive circuit exports negative sense cut-in voltage to described grid line, and the data line drive end of described row reversing drive circuit exports negative pressure data-signal to the data line of described array base palte.
Preferably, the sequential of described first period is before the sequential of described second period; Or the sequential of described second period is before described first period.
In the display device shown in Fig. 5, the drive singal sequential that row reversing drive circuit 205 exports as shown in Figure 6.
In scan period T1 ~ T6 period of one frame picture:
In the T1 period, grid line drive end 206 is to grid line G
1export forward cut-in voltage, the D signal (data-signal) that drive wire output terminal 207 exports to data line is positive voltage, with grid line G
1the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P11, P13, P15) stores positive voltage;
In the T2 period, grid line drive end 206 is to grid line G
1export negative sense cut-in voltage, drive wire output terminal 207 is negative voltage to the D signal that data line exports, with grid line G
1the pixel switch 201 that the grid negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P12, P14, P16) stores negative voltage;
In the T3 period, grid line drive end 206 is to grid line G
2export forward cut-in voltage, drive wire output terminal 207 is positive voltage to the D signal that data line exports, with grid line G
2the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P22, P24, P26) stores positive voltage;
In the T4 period, grid line drive end 206 is to grid line G
2export negative sense cut-in voltage, drive wire output terminal 207 is negative voltage to the D signal that data line exports, with grid line G
2the pixel switch 201 that the grid negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P21, P23, P25) stores negative voltage;
In the T5 period, grid line drive end 206 is to grid line G
3export forward cut-in voltage, drive wire output terminal 207 is positive voltage to the D signal that data line exports, with grid line G
3the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P31, P33, P35) stores positive voltage;
In the T6 period, grid line drive end 206 is to grid line G
3export negative sense cut-in voltage, drive wire output terminal 207 is negative voltage to the D signal that data line exports, with grid line G
3the pixel switch 201 that the grid level negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P32, P34, P36) stores negative voltage.
According to the characteristic of row inversion driving mode, in scan period T7 ~ T12 period of next frame picture:
In the T7 period, grid line drive end 206 is to grid line G
1export forward cut-in voltage, drive wire output terminal 207 exports negative voltage, with grid line G to data line
1the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P11, P13, P15) stores negative voltage;
In the T8 period, grid line drive end 206 is to grid line G
1export negative sense cut-in voltage, drive wire output terminal 207 is positive voltage to the D signal that data line exports, with grid line G
1the pixel switch 201 that the grid negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P12, P14, P16) stores positive voltage;
In the T9 period, grid line drive end 206 is to grid line G
2export forward cut-in voltage, drive wire output terminal 207 is negative voltage to the D signal that data line exports, with grid line G
2the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P22, P24, P26) stores negative voltage;
In the T10 period, grid line drive end 206 is to grid line G
2export negative sense cut-in voltage, drive wire output terminal 207 is positive voltage to the D signal that data line exports, with grid line G
2the pixel switch 201 that the grid negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P21, P23, P25) stores positive voltage;
In the T11 period, grid line drive end 206 is to grid line G
3export forward cut-in voltage, drive wire output terminal 207 is negative voltage to the D signal that data line exports, with grid line G
3the pixel switch 202 that the grid malleation connected is opened is opened, and connected pixel electrode (as pixel electrode P31, P33, P35) stores negative voltage;
In the T12 period, grid line drive end 206 is to grid line G
3export negative sense cut-in voltage, drive wire output terminal 207 is positive voltage to the D signal that data line exports, with grid line G
3the pixel switch 201 that the grid negative pressure connected is opened is opened, and connected pixel electrode (as pixel electrode P32, P34, P36) stores positive voltage.
Between the above-mentioned two frame picture scan periods, pixel electrode inversion effect as shown in Figure 7.Visible, the display device that the invention described above embodiment provides, achieves a display effect for reversion by row inversion driving mode.
Display device described in the embodiment of the present invention can be the display device such as liquid crystal display, LCD TV, OLED television panels, OLED display, plasma display and Electronic Paper.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. an array base palte, comprises the pixel switch of grid line, data line, pixel electrode and device of single gate structure, it is characterized in that:
The source electrode of each pixel switch is connected with a pixel electrode, be positioned at same data line both sides and the two row pixel electrodes adjacent with described data line are connected with described data line by the drain electrode of pixel switch, often row pixel electrode is connected with a grid line by the grid of pixel switch;
With two pixel electrodes that a line is adjacent, one of them pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected;
Two pixel electrodes that same row are adjacent, one of them pixel switch opened with grid malleation is connected, and another pixel switch opened with grid negative pressure is connected.
2. array base palte according to claim 1, is characterized in that, the grid line that often row pixel electrode connects is positioned at the below of this row pixel electrode;
Or,
The grid line that often row pixel electrode connects is positioned at the top of this row pixel electrode.
3. array base palte according to claim 1, is characterized in that, the grid line of odd-line pixels Electrode connection is positioned at the below of this row pixel electrode; The grid line of even rows Electrode connection is positioned at the top of this row pixel electrode;
Or,
The grid line of odd-line pixels Electrode connection is positioned at the top of this row pixel electrode; The grid line of even rows Electrode connection is positioned at the below of this row pixel electrode.
4. the array base palte according to any one of claims 1 to 3, is characterized in that, described pixel switch is Thin Film Transistor (TFT).
5. a display panel, is characterized in that, comprises the array base palte as described in any one of Claims 1 to 4.
6. a display device, is characterized in that, comprises display panel as claimed in claim 5, and for driving the row reversing drive circuit of double-gate structure array base palte;
The grid line drive end of described row reversing drive circuit is connected with the grid line of described array base palte, and the data line drive end of described row reversing drive circuit is connected with the data line of described array base palte.
7. a driving method for display device as claimed in claim 6, is characterized in that, within the scan period of a grid line, the described scan period is divided into the first period and the second period, and the method comprises:
In first period of described scan period, the grid line drive end of described row reversing drive circuit exports forward cut-in voltage to a grid line of array base palte, and the data line drive end of described row reversing drive circuit exports malleation data-signal to the data line of described array base palte;
In second period of described scan period, the grid line drive end of described row reversing drive circuit exports negative sense cut-in voltage to described grid line, and the data line drive end of described row reversing drive circuit exports negative pressure data-signal to the data line of described array base palte;
In the lower scan cycle of described grid line, the described scan period is divided into the first period and the second period, and the method comprises:
In first period of described scan period, the grid line drive end of described row reversing drive circuit exports forward cut-in voltage to described grid line, and the data line drive end of described row reversing drive circuit exports negative pressure data-signal to the data line of described array base palte;
In second period of described scan period, the grid line drive end of described row reversing drive circuit exports negative sense cut-in voltage to described grid line, and the data line drive end of described row reversing drive circuit exports malleation data-signal to the data line of described array base palte.
8. method according to claim 7, is characterized in that, also comprises: the sequential of described first period is before the sequential of described second period; Or the sequential of described second period is before described first period.
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| CN104062823B (en) | 2014-06-06 | 2017-01-25 | 厦门天马微电子有限公司 | Array substrate and display device |
| CN105047161B (en) * | 2015-08-26 | 2018-06-08 | 京东方科技集团股份有限公司 | Pixel unit driving device, method and display device |
| CN106019743B (en) * | 2016-06-15 | 2023-08-22 | 京东方科技集团股份有限公司 | Array substrate, driving method thereof and related device |
| CN107045239A (en) * | 2017-04-05 | 2017-08-15 | 合肥京东方光电科技有限公司 | Array base palte and preparation method thereof, display panel and display device |
| CN106991956A (en) | 2017-06-05 | 2017-07-28 | 京东方科技集团股份有限公司 | A kind of image element circuit and its driving method and its preparation method, display device |
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| CN201673656U (en) * | 2010-06-03 | 2010-12-15 | 北京京东方光电科技有限公司 | Liquid crystal display |
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