CN104424897A - Drive method of multiple common electrodes and display device - Google Patents
Drive method of multiple common electrodes and display device Download PDFInfo
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- CN104424897A CN104424897A CN201310364642.5A CN201310364642A CN104424897A CN 104424897 A CN104424897 A CN 104424897A CN 201310364642 A CN201310364642 A CN 201310364642A CN 104424897 A CN104424897 A CN 104424897A
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Abstract
The invention provides a drive method of multiple common electrodes and a display device. The drive method includes the following steps: providing a plurality of common voltages which include a first common voltage and a second common voltage, wherein the first common voltage is different from the second common voltage; in a first period, selecting to set the first common voltage as a first voltage level so as to drive first common electrodes in a first pixel area in a display panel and selecting to set the second common voltage as a third voltage level so as to drive second common electrodes in a second pixel area in the display panel; and in a second period, selecting to set the first common voltage as a second voltage level so as to drive the first common electrodes and selecting to set the second common voltage as a forth voltage level so as to drive the second common electrodes.
Description
Technical field
The invention relates to a kind of electronic installation, and relate to a kind of driving method and display device of many common electrodes especially.
Background technology
For the progress rapidly of multimedia society, mostly benefit from the tremendous progress of semiconductor element or display device.With regard to display, have that high image quality, space efficiency utilization are good, a liquid crystal display (Liquid Crystal Display of low consumpting power, the advantageous characteristic such as radiationless; Be called for short LCD) become the main flow in market gradually.
And first it is worth mentioning that at this, the driving framework of liquid crystal display can be divided into two kinds usually now, a kind of be the common voltage (DC mode common voltage) of DC mode driving framework (such as some reversion a type of drive), multiplex to drive the display panels (LCD panel) of existing large-size, another kind be the common voltage (AC mode common voltage) of AC mode driving framework (be such as line reversion type of drive), multiplex with drive existing in, undersized display panels.
But, if when driving the display panels of existing large-size with the driving framework of DC mode common voltage, although have preferably picture display effect, the consumed power of liquid crystal display entirety also can increase thereupon.In addition, if with the driving framework of AC mode common voltage drive existing in, undersized display panels time, though the consumed power of liquid crystal display entirety can be caused to reduce, but the situation that liquid crystal display may be identical due to the polarity that whole panel can occur in certain time, and then cause showing phenomenon usefulness causing flicker or ghost, greatly affect the display quality of liquid crystal display.
Summary of the invention
The invention provides a kind of driving method and display device of many common electrodes, exchanging the different common electrodes of handoff technique each self-driven display panel more by organizing common voltage, show with preferably picture to reach low-power consumption.
The present invention proposes a kind of driving method of many common electrodes, for driving display panel, comprising: provide multiple common voltage, and wherein common voltage comprises the first common voltage, the second common voltage, and wherein the first common voltage is different from the second common voltage.Select the first common voltage to be set as the first voltage level in first period, to drive the first common electrode of the first pixel region in display panel, and select the second common voltage to be set as tertiary voltage level, to drive the second common electrode of the second pixel region in display panel.Select the first common voltage to be set as the second voltage level in the second phase, to drive the first common electrode, and select the second common voltage to be set as the 4th voltage level, to drive the second common electrode.
The present invention proposes a kind of display device, comprises display panel, display driver circuit and common electrode driving circuit.Display panel has multiple common electrode, common electrode comprises the first common electrode and the second common electrode, first common electrode is distributed in the first pixel region in display panel and the second common electrode is distributed in the second pixel region in display panel, wherein, the first common electrode and the second common electrode are not interconnected each other.Display driver circuit, couples at least one data line in display panel and at least one sweep trace.Common electrode driving circuit couples the common electrode of display panel, wherein common electrode driving circuit was selected the first common voltage to be set as that the first voltage level is to drive the first common electrode in first period, and selected the first common voltage to be set as that the second voltage level is to drive the first common electrode in the second phase.And select the second common voltage to be set as that tertiary voltage level is to drive the second common electrode in first period, and select the second common voltage to be set as that the 4th voltage level is to drive the second common electrode in the second phase.
In one embodiment of this invention, above-mentioned driving method also comprises: provide the 3rd common voltage, selects the 3rd common voltage to be set as the 5th voltage level is to drive the 3rd common electrode of the 3rd pixel region in display panel and to select the 3rd common voltage to be set as that the 6th voltage level is to drive the 3rd common electrode in the second phase in first period.
In one embodiment of this invention, in above-mentioned driving method, the first pixel region and the second pixel region decide according to polarity distributional pattern dissimilar on a display panel.
In one embodiment of this invention, above-mentioned driving method also comprises: before the voltage of change first common electrode and the second common electrode, carry out charge share to the first common electrode and the second common electrode.
In one embodiment of this invention, in above-mentioned driving method, first period and the second phase comprise one or more shot length respectively.
In another embodiment of the invention, above-mentioned common electrode driving circuit also comprises voltage generator and interleaver.Voltage generator is in order to provide the first voltage level, the second voltage level, tertiary voltage level and the 4th voltage level.Interleaver couples between voltage generator and common electrode, wherein interleaver selects the first voltage level of being provided by voltage generation circuit and tertiary voltage level transmissions to the first common electrode and the second common electrode respectively in first period, and selects the second voltage level of being provided by voltage generation circuit and the 4th voltage level to transfer to the first common electrode and the second common electrode respectively in the second phase.
In another embodiment of the invention, above-mentioned voltage generator also provides the 3rd common voltage, and interleaver was selected the 3rd common voltage to be set as the 5th voltage level in first period, to drive the 3rd common electrode of the 3rd pixel region on display panel, and interleaver was selected the 3rd common voltage to be set as the 6th voltage level, to drive the 3rd common electrode in the second phase.
In another embodiment of the invention, the first above-mentioned pixel region and the second pixel region decide according to polarity distributional pattern dissimilar on a display panel.
In another embodiment of the invention, above-mentioned common electrode driving circuit also comprises charge share switch, its first end is coupled to the first common electrode, and the second end is coupled to the second common electrode, wherein before the voltage of change first common electrode and the second common electrode, charge share Switch Controller first common electrode and the second common electrode carry out charge share.
In another embodiment of the invention, above-mentioned first period and the second phase comprise one or more shot length respectively.
Based on above-mentioned, the driving method of many common electrodes proposed by the invention and display device, handoff technique is exchanged by the common electrode drive circuit input many groups common voltage in display device, to drive the multiple common electrodes on display panel, except can reaching effect of low-power consumption, also panel can be avoided to cause because polarity is identical showing phenomenon usefulness causing flicker or ghost, effectively improve the display quality of display device.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the block schematic diagram that a kind of display device is described according to the embodiment of the present invention;
Fig. 2 is the block schematic diagram according to common electrode drive circuit shown in one embodiment of the invention key diagram 1;
Fig. 3 is according to the sequential relationship schematic diagram of common voltage VCOM1 and VCOM2 shown in one embodiment of the invention key diagram 1 in first period and the second phase;
Fig. 4 A is the polarity distribution schematic diagram that pixel region on the display panel shown in first period Fig. 1 is described according to the first embodiment of the present invention;
Fig. 4 B is the polarity distribution schematic diagram that pixel region on the display panel shown in second phase Fig. 1 is described according to the first embodiment of the present invention;
Fig. 5 is the common electrode schematic layout pattern that pixel region on display panel is described according to the second embodiment of the present invention;
Fig. 6 is the common electrode schematic layout pattern that pixel region on display panel is described according to the third embodiment of the present invention;
Fig. 7 is the common electrode schematic layout pattern that pixel region on display panel is described according to the fourth embodiment of the present invention;
Fig. 8 is the schematic diagram carrying out charge share according to common voltage VCOM1 and VCOM2 shown in one embodiment of the invention key diagram 2 between first period and the second phase.
Description of reference numerals:
100: display device;
110: display driver circuit;
112: gate driver circuit;
114: source electrode drive circuit;
120: display panel;
130: common electrode driving circuit;
132: voltage generation circuit;
134: interleaver;
136_1,136_2: charge share switch;
A, B, C, D: common electrode;
G [1] ~ G [M]: sweep trace;
V1, V2, V3, V4, VCOM', VD: voltage level;
VCOM1, VCOM2, VCOM3, VCOM4: common voltage;
Y [1] ~ Y [N]: data line.
Embodiment
With detailed reference to one exemplary embodiment of the present invention, the example of described one exemplary embodiment is described in the accompanying drawings.In addition, all may part, in graphic and embodiment, use the identical or similar portions of the element/component/symbology of identical label.
Fig. 1 is the block schematic diagram that a kind of display device is described according to the embodiment of the present invention.Please refer to Fig. 1, the display device 100 of the present embodiment comprises display driver circuit 110, display panel 120 and common electrode driving circuit 130.Display panel 120 comprise multiple sweep trace G [1], G [2], G [3], G [4] ..., G [M] and multiple data line Y [1], Y [2], Y [3], Y [4] ..., Y [N].Display driver circuit 110 couples data line Y [1] ~ Y [N] in display panel 120 and sweep trace G [1] ~ G [M].Wherein, display driver circuit 110 can comprise gate driver circuit 112 and source electrode drive circuit 114, but not as restriction.When display driver circuit 110 receives picture signal (not shown), gate driver circuit 112 can export scanning voltage to the sweep trace G [1] on display panel 120 ~ G [M], and the corresponding driving voltage of described picture signal is then synchronously exported to data line Y [the 1] ~ Y [N] driven on display panel 120 by source electrode drive circuit 114.By this, by the synchronous operation of gate driver circuit 112 and source electrode drive circuit 114, display data (picture signal) can write in the different pixels (pixel) on display panel 120 by display driver circuit 110 effectively, thus makes display panel 120 show corresponding picture material.
Multiple common electrode is also comprised in display panel 120.Common electrode driving circuit 130 couples these common electrodes of display panel 120.If Fig. 1 is example, these common electrodes comprise common electrode A and common electrode B.Common electrode A is distributed in the first pixel region in display panel 120, and common electrode B is distributed in the second pixel region in display panel 120.Common electrode A and common electrode B are not interconnected each other.In addition, in the present embodiment, common electrode A, B corresponding respectively the first pixel region and the layout type of the second pixel region can be that the polarity distributional pattern dissimilar on display panel 120 of basis decides.Such as, can add according to row reversion (Row Inversion), row reversion (ColumnInversion), single-point reversion (Single Dot Inversion), multi-point reverse (Multiple Dot Inversion), multiple spot the layout type that multi-point reverse (M+N Dot Inversion) or picture frame reversion (Frame Inversion) isopolarity distributed needs decide common electrode A, B.In the present embodiment, the layout type of common electrode A, B in display panel 120 as shown in Figure 1.Common electrode A, B receive respectively common electrode driving circuit 130 different common voltages is provided, be such as common voltage VCOM1, VCOM2, thus display panel 120 can realize the polarity distribution of " some reversion ".
On the other hand, common electrode driving circuit 130 provides multiple common voltage, such as, be VCOM1, VCOM2, the common electrode in respective pixel region to display panel 120.In the present embodiment, common electrode driving circuit 130 provides common voltage VCOM1, VCOM2 are the common voltage (being described in detail in figure 3 after appearance) with the alternating voltage amplitude of oscillation.In the present embodiment, based on clear and succinct, Fig. 1 only illustrates common voltage VCOM1, VCOM2 and common electrode A, B, but other embodiments are not as restriction.Common electrode driving circuit 130 can be selected common voltage VCOM1 to be set as that the first voltage level V1 is to drive the common electrode A of display panel 120 in first period, and common voltage VCOM1 can be selected to be set as that the second voltage level V2 is to drive the common electrode A of display panel 120 in the second phase.By that analogy, common electrode driving circuit 130 can be selected common voltage VCOM2 to be set as that tertiary voltage level V3 is to drive the common electrode B of display panel 120 in described first period, and common voltage VCOM2 can be selected to be set as that the 4th voltage level V4 is to drive the common electrode B of display panel 120 in the described second phase.
The present embodiment does not limit the implementation of common electrode driving circuit 130.Such as, in certain embodiments, common electrode driving circuit 130 can use digital analog converter (Digital to AnalogConverter; Be called for short DAC), voltage adjuster (voltage regulator) or other circuit realiration it.Again such as, Fig. 2 is the block schematic diagram according to common electrode drive circuit shown in one embodiment of the invention key diagram 1.Please refer to Fig. 2, common electrode driving circuit 130 comprises voltage generation circuit 132 and interleaver 134.Voltage generation circuit 132 is in order to produce multiple voltage level, and for Fig. 2, voltage generation circuit 132 provides voltage level V1, V2, V3 and V4 tetra-kinds of voltage levels.In certain embodiments, voltage level V1, V2, V3 and V4 can be mutually different four kinds of voltage levels.In further embodiments, voltage level V1 may be same as voltage level V4, and voltage level V2 may be same as voltage level V3.
Interleaver 134 can select the voltage level V1 provided by voltage generation circuit 132 to transfer to the common electrode A of display panel 120 in first period, using as common voltage VCOM1.Interleaver 134 can select the voltage level V3 provided by voltage generation circuit 132 to transfer to the common electrode B of display panel 120 in described first period, using as common voltage VCOM2.Next, interleaver 134 can select the voltage level V2 provided by voltage generation circuit 132 to transfer to the common electrode A of display panel 120 in the second phase, using as common voltage VCOM1.Interleaver 134 can select the voltage level V4 provided by voltage generation circuit 132 to transfer to the common electrode B of display panel 120 in the described second phase, using as common voltage VCOM2.
In order to more elaborate the method that multi-electrode proposed by the invention drives, each diagram will be contrasted with further description for described embodiment under in the present invention.
Fig. 3 is according to the sequential relationship schematic diagram of common voltage VCOM1 and VCOM2 shown in one embodiment of the invention key diagram 1 in first period and the second phase.In Fig. 3 voltage level VD represent data line Y [1] in display panel 120 shown in Fig. 1 ~ Y [N] transmit the level range of data voltage.Please also refer to Fig. 1 and Fig. 3, common electrode driving circuit 130 provides multiple common voltage VCOM1 and VCOM2 to different common electrode A and the B of display panel 120 respectively, and common voltage VCOM1, VCOM2 are differing from each other.Sequentially first period and the second phase can be at least divided into, as shown in Figure 3 during the driving of common electrode driving circuit 130.Described first period and the described second phase comprise one or more picture (frame) length respectively.Such as, during described first period can be the n-th picture, and during the described second phase can be (n+1)th picture.
Shown in Fig. 3 during first period, common electrode driving circuit 130 can select common voltage VCOM1 to be set as voltage level V1, to drive the common electrode in this display panel 120 (being such as common electrode A), and select common voltage VCOM2 to be set as voltage level V3, to drive another common electrode in this display panel 120 (being such as common electrode B).When entering the second phase after first period, common electrode driving circuit 130 is selected common voltage VCOM1 to change to be set as voltage level V2, to drive the common electrode in this display panel 120 (being such as common electrode A), and select common voltage VCOM2 to change to be set as voltage level V4, to drive another common electrode in this display panel 120 (being such as common electrode B).
Or in other embodiments, common electrode driving circuit 130 can select common voltage VCOM1 to be set as voltage level V2 in first period shown in Fig. 3, and select common voltage VCOM2 to be set as voltage level V4.When entering the second phase after first period, common electrode driving circuit 130 can be selected common voltage VCOM1 to change to be set as voltage level V1, and selects common voltage VCOM2 to change to be set as voltage level V3.
Fig. 4 A, 4B are the polarity distribution schematic diagrams according to pixel region on display panel shown in first embodiment of the present invention key diagram 1.In Fig. 4 A, 4B illustrated embodiment, the V1 of voltage level shown in hypothesis Fig. 3 is same as voltage level V4, and voltage level V2 is same as voltage level V3.Please also refer to Fig. 3,4A, in display panel 120, be divided into different common electrode A, B according to different pixels region, and each common electrode A, B are coupled to corresponding common voltage VCOM1, VCOM2 respectively.
Shown in Fig. 3 during first period, common electrode driving circuit 130 selects common voltage VCOM1 to be set as voltage level V1, to make the pixel operation of common electrode A position in display panel 120 in negative polarity.In identical first period, common electrode driving circuit 130 also select common voltage VCOM2 to be set as voltage level V3(in this embodiment V3 be same as V2), to make the pixel operation of common electrode B position in display panel 120 in positive polarity.Then, please also refer to Fig. 3,4B, after first period, enter the second phase, common electrode driving circuit 130 selects common voltage VCOM1 to be set as voltage level V2, to make the pixel operation of common electrode A position in display panel 120 in positive polarity.In the identical second phase, common electrode driving circuit 130 also select common voltage VCOM2 to be set as voltage level V4(in this embodiment V4 be same as V1), to make the pixel operation of common electrode B position in this display panel 120 in negative polarity.In the present embodiment, in first period and the second phase, the pixel region on display panel represents negative polarity with grey square, and white square represents positive polarity, as shown in Fig. 4 A, 4B.
Fig. 5 is the common electrode schematic layout pattern that pixel region on display panel is described according to the second embodiment of the present invention.Embodiment illustrated in fig. 5ly can analogize it with reference to the related description of Fig. 1, Fig. 4 A and/or Fig. 4 B.Be with the discrepancy of Fig. 4 A, 4B, common voltage VCOM1, VCOM2, VCOM3 and VCOM4 that have employed four embodiment illustrated in fig. 5, and be configured with common electrode A, B, C, D in respective pixel region on a display panel.Common electrode A, B, C, D on display panel are not interconnected each other.Common voltage VCOM1, VCOM2, VCOM3 and VCOM4 can be provided to common electrode A, B, C and D by common electrode driving circuit respectively.
In certain embodiments, common voltage VCOM1, VCOM2, VCOM3 and VCOM4 can be different.Such as, during the first, common electrode A, B, C and D can be set as the first voltage level, tertiary voltage level, the 5th voltage level and the 7th voltage level by common electrode driving circuit respectively, to drive the common electrode D of common electrode A, the common electrode B of the second pixel region of the first pixel region in display panel, the common electrode C of the 3rd pixel region and the 4th pixel region respectively.During the second, common electrode A, B, C and D can be set as the second voltage level, the 4th voltage level, the 6th voltage level and the 8th voltage level by common electrode driving circuit respectively, with the common electrode D of the common electrode C and described 4th pixel region that drive the common electrode B of the common electrode A of the first pixel region described in display panel, described second pixel region, described 3rd pixel region respectively.The type of drive of common electrode A, B, C and D can analogize it with reference to the related description of Fig. 4 A, 4B, just repeats no more at this.
Fig. 6 is the common electrode schematic layout pattern that pixel region on display panel is described according to the third embodiment of the present invention.Embodiment illustrated in fig. 6ly can analogize it with reference to the related description of Fig. 1, Fig. 4 A, Fig. 4 B and/or Fig. 5.Be with the discrepancy of Fig. 5, the common electrode distribution on the display panel in embodiment illustrated in fig. 6 is different from the common electrode distribution on display panel shown in Fig. 5.
Fig. 7 is the common electrode schematic layout pattern that pixel region on display panel is described according to the fourth embodiment of the present invention.Embodiment illustrated in fig. 7ly can analogize it with reference to the related description of Fig. 1, Fig. 4 A and/or Fig. 4 B.Be with the discrepancy of Fig. 4 A and Fig. 4 B, the common electrode distribution on the display panel in embodiment illustrated in fig. 7 is different from the common electrode distribution on display panel shown in Fig. 4 A and Fig. 4 B.
Please refer to Fig. 2, in another embodiment, common electrode driving circuit 130 optionally can also configure charge share switch 136_1,136_2.For the charge share switch 136_1 in Fig. 2, the first end of charge share switch 136_1 is coupled to the common electrode A on display panel 120, and second end of charge share switch 136_1 is coupled to another common electrode B on display panel 120.It should be noted that, before the voltage level changing common electrode A and another common electrode B in display panel 120, charge share switch 136_1 can conducting momently, first to carry out charge share, to reduce the power consumption of common electrode driving circuit 130 to common electrode A and another common electrode B.Except during carrying out charge share, the equal remain off of charge share switch 136_1,136_2.
Fig. 8 is the schematic diagram carrying out charge share according to common voltage VCOM1 and VCOM2 shown in one embodiment of the invention key diagram 2 between first period and the second phase.In Fig. 8 voltage level VD represent data line in display panel 120 transmit the level range of data voltage.Embodiment illustrated in fig. 8ly can analogize it with reference to the related description of Fig. 3.Please also refer to Fig. 2 and Fig. 8, because common electrode driving circuit 130 also comprises multiple charge share switch 136_1,136_2, therefore common voltage driving circuit 130 is before the voltage level changing common voltage VCOM1, VCOM2, common voltage driving circuit 130 controls the conducting/closed condition of charge share switch 136_1,136_2, makes charge share switch 136_1,136_2 conducting momently.After completing charge share, the equal remain off of charge share switch 136_1,136_2.Therefore, charge share can be carried out between each common electrode A and B.
For common voltage VCOM1, VCOM2 in Fig. 8, when first period, the common voltage VCOM1 of the common electrode A be input on display panel 120 is set as voltage level V1 by display device, and the common voltage VCOM2 of the common electrode B be input on display panel 120 is set as voltage level V3.Before switching to the second phase in first period, before the voltage level of common voltage VCOM1, VCOM2 is switched to V2, V4 by V1, V3 by the interleaver 134 namely in common voltage driving circuit 130, charge share switch 136_1,136_2 conducting and make the voltage level of common voltage VCOM1 and common voltage VCOM2 can the mean value VCOM' that converge to close to voltage level V1 and voltage level V3 because of mutual short circuit momently, the running of Here it is charge share.After completing charge share, charge share switch 136_1 turns off again, makes common voltage driving circuit 130 be able to, in the second phase, the voltage level of common voltage VCOM1 and common voltage VCOM2 is continued charge/discharge to voltage level V2 and V4 from voltage level VCOM'.Therefore, compared with embodiment illustrated in fig. 3, the power consumption of middle common electrode driving circuit 130 embodiment illustrated in fig. 8 can reduce.
In sum, the method that many common electrodes proposed by the invention drive and display device, handoff technique is exchanged by the common electrode drive circuit input many groups common voltage in display device, sequentially to drive the multiple common electrodes on display panel during difference, and the mechanism of charge share can be adopted to accelerate the speed of voltage level transition simultaneously.Therefore the present invention is except can reaching effect of low-power consumption, display device adopts above-mentioned type of drive can not produce the problem of dynamic ghost, also can not produce the transient state reaction of whole panel tool identical polar and make the problems such as film flicker, effectively improving the display quality of display device.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a driving method for common electrode more than, for driving display panel, is characterized in that, comprising:
There is provided multiple common voltage, wherein those common voltages comprise the first common voltage and the second common voltage, and wherein this first common voltage is different from this second common voltage;
Select this first common voltage to be set as the first voltage level, to drive the first common electrode of the first pixel region in this display panel in first period;
Select this first common voltage to be set as the second voltage level, to drive this first common electrode in the second phase;
Select this second common voltage to be set as tertiary voltage level, to drive the second common electrode of the second pixel region in this display panel in this first period; And
Select this second common voltage to be set as the 4th voltage level, to drive this second common electrode in this second phase.
2. the driving method of many common electrodes according to claim 1, is characterized in that, also comprise:
3rd common voltage is provided;
Select the 3rd common voltage to be set as the 5th voltage level, to drive the 3rd common electrode of the 3rd pixel region in this display panel in this first period; And
Select the 3rd common voltage to be set as the 6th voltage level, to drive the 3rd common electrode in this second phase.
3. the driving method of many common electrodes according to claim 1, is characterized in that, this first pixel region and this second pixel region decide according to polarity distributional pattern dissimilar on this display panel.
4. the driving method of many common electrodes according to claim 1, is characterized in that, also comprise:
Before the voltage changing this first common electrode and this second common electrode, charge share is carried out to this first common electrode and this second common electrode.
5. the driving method of many common electrodes according to claim 1, is characterized in that, this first period and this second phase comprise one or more shot length respectively.
6. a display device, is characterized in that, comprising:
Display panel, there is multiple common electrode, those common electrodes comprise the first common electrode and the second common electrode, this first common electrode is distributed in the first pixel region in this display panel, and this second common electrode is distributed in the second pixel region in this display panel, wherein, this first common electrode and this second common electrode are not interconnected each other;
Display driver circuit, couples at least one data line in this display panel and at least one sweep trace; And
Common electrode driving circuit, couple those common electrodes of this display panel, wherein this common electrode driving circuit was selected the first common voltage to be set as that the first voltage level is to drive this first common electrode in first period, and selected this first common voltage to be set as that the second voltage level is to drive this first common electrode in the second phase; And this common electrode driving circuit was selected the second common voltage to be set as that tertiary voltage level is to drive this second common electrode in this first period, and select the second common voltage to be set as that the 4th voltage level is to drive this second common electrode in this second phase.
7. display device according to claim 6, is characterized in that, this common electrode driving circuit comprises:
Voltage generator, in order to provide the first voltage level, the second voltage level, tertiary voltage level and the 4th voltage level; And
Interleaver, be coupled between this voltage generator and those common electrodes, wherein this interleaver selects this first voltage level of being provided by this voltage generation circuit and this tertiary voltage level transmissions to this first common electrode and this second common electrode in this first period respectively, and selects this second voltage level of being provided by this voltage generation circuit and the 4th voltage level to transfer to this first common electrode and this second common electrode respectively in this second phase.
8. display device according to claim 7, it is characterized in that, this voltage generator also provides the 3rd common voltage, and this interleaver was selected the 3rd common voltage to be set as that the 5th voltage level is to drive the 3rd common electrode of the 3rd pixel region on this display panel in this first period, and this interleaver was selected the 3rd common voltage to be set as that the 6th voltage level is to drive the 3rd common electrode in this second phase.
9. display device according to claim 6, is characterized in that, this first pixel region and the second pixel region decide according to polarity distributional pattern dissimilar on this display panel.
10. display device according to claim 6, is characterized in that, this common electrode driving circuit also comprises:
Charge share switch, its first end is coupled to this first common electrode, and the second end is coupled to this second common electrode, wherein before the voltage changing this first common electrode and this second common electrode, this first common electrode of this charge share Switch Controller and this second common electrode carry out charge share.
11. display device according to claim 6, is characterized in that, this first period and this second phase comprise one or more shot length respectively.
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| CN104460126A (en) * | 2013-09-16 | 2015-03-25 | 联咏科技股份有限公司 | Display device and liquid crystal display panel |
| CN106057158A (en) * | 2016-08-02 | 2016-10-26 | 昆山龙腾光电有限公司 | Multi-voltage generation circuit and liquid crystal display device |
| US10031391B2 (en) | 2013-09-06 | 2018-07-24 | Novatek Microelectronics Corp. | Display device and liquid crystal display panel having a plurality of common electrodes |
| WO2019000499A1 (en) * | 2017-06-27 | 2019-01-03 | 深圳市华星光电技术有限公司 | Colored film substrate and liquid crystal panel |
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| US10031391B2 (en) | 2013-09-06 | 2018-07-24 | Novatek Microelectronics Corp. | Display device and liquid crystal display panel having a plurality of common electrodes |
| CN104460126A (en) * | 2013-09-16 | 2015-03-25 | 联咏科技股份有限公司 | Display device and liquid crystal display panel |
| CN104460126B (en) * | 2013-09-16 | 2017-08-25 | 联咏科技股份有限公司 | Display device and liquid crystal display panel |
| CN106057158A (en) * | 2016-08-02 | 2016-10-26 | 昆山龙腾光电有限公司 | Multi-voltage generation circuit and liquid crystal display device |
| CN106057158B (en) * | 2016-08-02 | 2018-05-29 | 昆山龙腾光电有限公司 | Multivoltage generation circuit and liquid crystal display device |
| WO2019000499A1 (en) * | 2017-06-27 | 2019-01-03 | 深圳市华星光电技术有限公司 | Colored film substrate and liquid crystal panel |
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