Invention content
In order to overcome shortcoming and defect in the prior art, the purpose of the present invention is to provide a kind of array substrate andIts driving method and liquid crystal display device and its driving method, to improve the problem of image quality display is uneven.
The purpose of the present invention is achieved through the following technical solutions：
The present invention provides a kind of array substrate, and array substrate is equipped with multi-strip scanning line and multiple data lines and multiple pixelsElectrode is additionally provided with a plurality of common wire and public electrode in array substrate, and a plurality of common wire and multiple data lines are prolonged in same directionIt stretches and is arranged alternately with each other, multi-strip scanning line intersects restriction with multiple data lines and the insulation of a plurality of common wire and forms multiple pixelsUnit；Public electrode includes the public electrode block of multiple array distributions and mutually insulated, and each public electrode block is along scan line sideTo two adjacent pixel units of covering simultaneously, two neighboring pixel unit is one group of array in array substrate on scan-line directionArrangement, pixel electrode in one of pixel unit of every group of pixel unit pass through the first switching element of series connection and theTwo switch elements are with being located at pixel unit two scan lines of both sides and the first switching element for closing on to connect and second up and downThe data line of switch element connects, and the pixel electrode in other in which pixel unit is by third switch element and closes on thirdScan line and the data line connection of switch element, each public electrode block is by the 4th switch element and closes on the 4th switch elementScan line and common wire connection.
Further, the control terminal of first switching element is with being located at two scan lines of both sides above and below pixel unit whereinOne of connection, wherein another connection of the control terminal of second switch element and two scan lines, first switching element is whereinOne conducting end is connect with data line, and one of conducting end of second switch element is connect with pixel electrode, first switch memberAnother conducting end of part is connect with another conducting end of second switch element.
Further, the control terminal of first switching element is connect with the scan line on the upside of pixel unit, second switchThe control terminal of element is connect with the scan line on the downside of pixel unit.
Further, the control terminal of second switch element passes through a connecting line and the scan line on the downside of pixel unitConnection.
Further, the control of the control terminal of first switching element, the control terminal of third switch element and the 4th switch elementEnd processed is connected in same scan line.
The present invention also provides a kind of driving method of array substrate, driving method includes：
In adjacent three scan lines Gn, Gn+1, Gn+2, in first time period t1, while make scan line Gn and scan lineGn+1 is high level, each picture being connect between scan line Gn and scan line Gn+1 with first switching element and second switch elementPlain unit, which is opened and passes through multiple data lines, is filled with correct data voltage, each public affairs between scan line Gn and scan line Gn+1Common electrode block is filled with common voltage by a plurality of common wire；
In second time period t2, make scan line Gn for high level, scan line Gn+1 is low level, scan line Gn and scanningThe each pixel unit being connect between line Gn+1 with first switching element and second switch element is closed, scan line Gn and scan lineThe each pixel unit being connect between Gn+1 with third switch element, which is opened and passes through multiple data lines, is filled with correct data electricityPressure, each public electrode block between scan line Gn and scan line Gn+1 are filled with common voltage by a plurality of common wire；
In third time period t 3, while scan line Gn+1 and scan line Gn+2 is made to be high level, scan line Gn+1 is with sweepingThe each pixel unit connecting with first switching element and second switch element between line Gn+2 is retouched to open and by a plurality of dataMicro USB enters correct data voltage, and each public electrode block between scan line Gn+1 and scan line Gn+2 passes through a plurality of common wireIt is filled with common voltage；
In the 4th time period t 4, make scan line Gn+1 for high level, scan line Gn+2 is low level, scan line Gn+1 withEach pixel unit for being connect between scan line Gn+2 with first switching element and second switch element is closed, scan line Gn+1 withThe each pixel unit being connect between scan line Gn+2 with third switch element is opened and passes through multiple data lines and is filled with correctlyData voltage, each public electrode block between scan line Gn+1 and scan line Gn+2 are filled with common electrical by a plurality of common wirePressure；
Wherein, n is the positive integer more than 1.
The present invention also provides a kind of liquid crystal display device, including array substrate as described above, opposite with array substrate setThe color membrane substrates put and the liquid crystal layer between array substrate and color membrane substrates, color membrane substrates are equipped with auxiliary electrode.
The present invention also provides a kind of driving method of liquid crystal display device, driving method includes：
Under the first field-of-view mode, apply auxiliary reference voltage to auxiliary electrode, by common wire to each common electricalPole block applies opposite auxiliary reference voltage with the common voltage compared with small pressure difference, makes between all public electrode blocks and auxiliary electrodeVoltage difference be less than preset value；
Under second of field-of-view mode, apply auxiliary reference voltage to auxiliary electrode, by common wire to each common electricalPole block, which applies opposite auxiliary reference voltage, has the common voltage of larger pressure difference, makes between all public electrode blocks and auxiliary electrodeVoltage difference be more than preset value.
Further, by common wire to each public electrode block apply common voltage when, to upper in scan-line directionApply the first common voltage in the common wire of odd positions, apply the to the common wire put of even bit is located on scan-line directionTwo common voltages, under the first field-of-view mode, the first common voltage and the second common voltage are and auxiliary reference voltage constant amplitudeDC voltage, under second of field-of-view mode, the first common voltage and the second common voltage are alternating voltage and the two polarityOn the contrary.
Further, liquid crystal layer use positive liquid crystal molecules, the first field-of-view mode be wide viewing angle pattern, second of visual anglePattern is narrow viewing angle pattern；Alternatively, liquid crystal layer use negative liquid crystal molecule, the first field-of-view mode be narrow viewing angle pattern, secondKind field-of-view mode is wide viewing angle pattern.
Advantageous effect of the present invention is：By the way that the voltage of width view angle switch will be manipulated from the viewing angle control of color membrane substrates sideElectrode turns to be realized by the public electrode block of array substrate side, and additionally increases common wire and switch element, passes through data lineWith common wire to the pixel electrode in pixel unit and public electrode block synchronize charge, each charged good pixel listIt is first between pixel unit to be charged not by voltage coupling influence, signal coupling can be effectively reduced, so as to solve in panelThe pixel of different location is improved due to uneven (Mura) problem of picture display of the inconsistent generation of coupling influence by signalDisplay image quality.Therefore, the frame frequency of the liquid crystal display device can maintain the low frequency of 60Hz, advantageously reduce power consumption, increaseThe charging time of pixel and charging effect.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments, but is not the present invention'sPractical range is confined to this.
[first embodiment]
It please join Fig. 3 and Fig. 4, first embodiment of the invention provides a kind of array substrate, and array substrate 10 is equipped with a plurality of sweepRetouch line 16, multiple data lines 17, a plurality of common wire 18 and public electrode 11.
Multiple data lines 17 and a plurality of common wire 18 extend in the same direction, and multiple data lines 17 and a plurality of common wire 18 existSetting is alternateed on 16 direction of scan line, by multi-strip scanning line 16 and multiple data lines 17 and a plurality of public in array substrate 1018 mutually insulated of line, which intersects to limit, forms multiple pixel unit P, and pixel electrode 13 is equipped in each pixel unit P.
Public electrode 11 includes multiple public electrode blocks 111 in array distribution and mutually insulated, each public electrode block111 cover two adjacent pixel unit P simultaneously along 16 direction of scan line.
Two adjacent pixel unit P are one group of array arrangement in array substrate 10 on scan-line direction, positioned at every groupFirst switching element 1 and the second switch member that pixel electrode 13 in one of pixel unit P of pixel unit P passes through series connectionPart 2 and two scan lines 16 positioned at both sides above and below pixel unit P and the first switching element 1 and second switch closing on to connectThe data line 17 of element 2 connects, and the pixel electrode 13 in other in which pixel unit P is by third switch element 3 with closing onThe scan line 16 and data line 17 of third switch element 3 connect, and each public electrode block 111 is by the 4th switch element 4 with facingThe scan line 16 and common wire 18 of nearly 4th switch element 4 connect.
Further, the control terminal of first switching element 1 is with being located above and below pixel unit P in two scan lines 16 of both sidesA wherein scan line 16 connect, the control terminal of second switch element 2 with positioned at pixel unit P two of both sides scannings up and downAnother scan line 16 in line 16 connects, and one of conducting end of first switching element 1 is connect with data line 17, and second opensThe one of conducting end for closing element 2 is connect with pixel electrode 13, another conducting end and second switch of first switching element 1Another conducting end connection of element 2.The first switching element 1 of the present embodiment, second switch element 2, third switch element 3,4th switch element 4 is all thin film transistor (TFT).
In the present embodiment, the control terminal of first switching element 1 is connect with the scan line 16 on the upside of pixel unit P,The control terminal of second switch element 2 is connect with the scan line 16 on the downside of pixel unit P, the control terminal of second switch element 2It is connect by a connecting line 5 with the scan line 16 on the downside of pixel unit P, the control terminal of second switch element 2 and connectionThe making of line 5 is formed in same layer.However, the present invention is not limited thereto, in other embodiments, the control terminal of first switching element 1 and positionScan line 16 on the downside of pixel unit P connects, the control terminal of second switch element 2 and the scanning on the upside of pixel unit PLine 16 connects, and the control terminal of second switch element 2 is connected by a connecting line 5 and the scan line 16 on the downside of pixel unit PIt connects.
In the present embodiment, the control terminal of first switching element 1, the control terminal of third switch element 3 and the 4th switch memberThe control terminal of part 4 is connected in same scan line 16.However, the present invention is not limited thereto, in other embodiments, first switchThe control terminal of the control terminal of element 1, the control terminal of third switch element 3 and the 4th switch element 4 can be respectively connected to and firstOn any one of two scan lines 16 that 1 phase of switch element is closed on.
First embodiment of the invention also provides a kind of driving method of array substrate, and driving method includes：
In adjacent three scan lines Gn, Gn+1, Gn+2, in first time period t1, while make scan line Gn and scan lineGn+1 is high level, is connect between scan line Gn and scan line Gn+1 with first switching element 1 and second switch element 2 eachPixel unit P, which is opened and passed through multiple data lines 17, is filled with correct data voltage, between scan line Gn and scan line Gn+1Each public electrode block 111 is filled with common voltage by a plurality of common wire 18；
In second time period t2, make scan line Gn for high level, scan line Gn+1 is low level, scan line Gn and scanningThe each pixel unit P being connect between line Gn+1 with first switching element 1 and second switch element 2 is closed, and scan line Gn is with sweepingIt retouches each pixel unit P being connect between line Gn+1 with third switch element 3 and opens and pass through multiple data lines 17 and be filled with correctlyData voltage, each public electrode block 111 between scan line Gn and scan line Gn+1 is filled with public affairs by a plurality of common wire 18Common voltage；
In third time period t 3, while scan line Gn+1 and scan line Gn+2 is made to be high level, scan line Gn+1 is with sweepingThe each pixel unit P connecting with first switching element 1 and second switch element 2 between line Gn+2 is retouched to open and pass through a plurality of numberCorrect data voltage is filled with according to line 17, each public electrode block 111 between scan line Gn+1 and scan line Gn+2 is by moreCommon wire 18 is filled with common voltage；
In the 4th time period t 4, make scan line Gn+1 for high level, scan line Gn+2 is low level, scan line Gn+1 withThe each pixel unit P being connect between scan line Gn+2 with first switching element 1 and second switch element 2 is closed, scan line Gn+The each pixel unit P being connect between 1 and scan line Gn+2 with third switch element 3 is opened and is passed through multiple data lines 17 and is filled withCorrect data voltage, each public electrode block 111 between scan line Gn+1 and scan line Gn+2 pass through a plurality of common wire 18It is filled with common voltage；
Wherein, n is the positive integer more than 1.
First embodiment of the invention also provides a kind of liquid crystal display device, as shown in figure 4, liquid crystal display device is included as aboveThe array substrate 10, the color membrane substrates 20 being oppositely arranged with array substrate 10 and positioned at array substrate 10 and color membrane substratesLiquid crystal layer 30 between 20.
Color blocking layer 22, black matrix BM21 and entire auxiliary electricity are equipped on color membrane substrates 20 in the side towards liquid crystal layer 30Pole 24.Color blocking layer 22 for example includes the color blocking material of three color of red, green, blue, is correspondingly formed the pixel list of three color of red, green, blue respectivelyFirst P.Black matrix 21 is located between the pixel unit P of three color of red, green, blue, makes between adjacent pixel unit P through black matrix 21It is spaced from each other.
In the present embodiment, the liquid crystal molecule in liquid crystal layer 30 is positive liquid crystal molecules, and it is fast that positive liquid crystal molecules have responseThe advantages of.Such as Fig. 4, in original state (in the case of i.e. liquid crystal display device does not apply any voltage), liquid crystal layer 30 justProperty liquid crystal molecule the surface base of the lie low posture, the i.e. long axis direction of positive liquid crystal molecules and substrate substantially parallel with substrate is presentedThis is parallel.But in practical applications, can have between the positive liquid crystal molecules in liquid crystal layer 30 and substrate smaller initial pre-Inclination angle, the range of initial pre-tilt angle may be less than or equal to 10 degree, i.e.,：0°≦θ≦10°.
The present embodiment is applied to the auxiliary electrode 24 of color membrane substrates 20 and the public electrode 11 of array substrate 10 by controlOn voltage signal, liquid crystal display device can be made to realize switching between wide viewing angle pattern and narrow viewing angle pattern.
Wide viewing angle pattern：It please join Fig. 4, the present embodiment is applied under wide viewing angle pattern to the auxiliary electrode 24 of color membrane substrates 20Add auxiliary reference voltage Vref.As shown in Fig. 3, Fig. 6 a and Fig. 6 b, with G1 in figure ..., G5 represents multi-strip scanning line 16, with D1 and D2The first data line 17 and the second data line 17 are represented respectively, the pixel unit of the first row odd positions is represented with A, and B is representedThe pixel unit of the first row even number position, C represent the pixel unit of the second row odd positions, and D represents the second row even number positionPixel unit, and the four-stage to be charged with t1, t2, t3 and t4 signal pixel A to pixel D：
t1：Make scan line G1 and scan line G2 simultaneously for high level, between scan line G1 and scan line G2 with first switchEach pixel unit A that element 1 and second switch element 2 connect, which is opened and passed through multiple data lines 17, is filled with correct data electricityPressure, each public electrode block 111 between scan line G1 and scan line G2 are filled with the first common voltage by a plurality of common wire 18Vcom1 so that the voltage difference between each public electrode block 111 and auxiliary electrode 24 between scan line G1 and scan line G2 is smallIn preset value (such as less than 0.5V)；
t2：Making scan line G1, scan line G2 is low level, is opened between scan line G1 and scan line G2 with first for high levelIt closes each pixel unit A that element 1 and second switch element 2 connect to close, be opened between scan line G1 and scan line G2 with thirdClose each pixel unit B that element 3 connects and open and pass through multiple data lines 17 and be filled with correct data voltage, scan line G1 andEach public electrode block 111 between scan line G2 is filled with the first common voltage Vcom1 by a plurality of common wire 18 so that scanningThe voltage difference between each public electrode block 111 and auxiliary electrode 24 between line G1 and scan line G2 is less than preset value；
t3：Make scan line G2 and scan line G3 simultaneously for high level, between scan line G2 and scan line G3 with first switchEach pixel unit C that element 1 and second switch element 2 connect, which is opened and passed through multiple data lines 17, is filled with correct data electricityPressure, each public electrode block 111 between scan line G2 and scan line G3 are filled with the second common voltage by a plurality of common wire 18Vcom2 so that the voltage difference between each public electrode block 111 and auxiliary electrode 24 between scan line G2 and scan line G3 is smallIn preset value；
t4：Making scan line G2, scan line G3 is low level, is opened between scan line G2 and scan line G3 with first for high levelIt closes each pixel unit C that element 1 and second switch element 2 connect to close, be opened between scan line G2 and scan line G3 with thirdClose each pixel unit D that element 3 connects and open and pass through multiple data lines 17 and be filled with correct data voltage, scan line G2 andEach public electrode block 111 between scan line G3 is filled with the second common voltage Vcom2 by a plurality of common wire 18 so that scanningThe voltage difference between each public electrode block 111 and auxiliary electrode 24 between line G2 and scan line G3 is less than preset value.At this point,Since the voltage difference between all public electrode blocks 111 and auxiliary electrode 24 is smaller, the inclination angle of liquid crystal molecule in liquid crystal layer 30Degree hardly changes, and is maintained as the posture that lies low, therefore liquid crystal display device realizes that normal wide viewing angle is shown.SpecificallyGround, under wide viewing angle pattern, the first common voltage Vcom1 for being applied on odd column public electrode block 111 by common wire 18It is straight with auxiliary reference voltage Vref constant amplitudes with the second common voltage Vcom2 applied on even column public electrode block 111Galvanic electricity pressure, the auxiliary reference voltage Vref that auxiliary electrode 24 applies can be constant 0V, the electricity applied on every common wire 18Pressure or constant 0V, the common voltage applied on public electrode block 111 each in this way with auxiliary reference voltage VrefIt is identical, it can realize preferable wide viewing angle effect.
Narrow viewing angle pattern：It please join Fig. 5, the present embodiment is applied under narrow viewing angle pattern to the auxiliary electrode 24 of color membrane substrates 20Add auxiliary reference voltage Vref, specifically, the auxiliary reference voltage Vref that auxiliary electrode 24 applies can be constant 0V.Such as figure3rd, shown in Fig. 7 a and Fig. 7 b, with G1, G2 in figure ..., G5 represents multi-strip scanning line 16, and the first data line is represented respectively with D1 and D217 and second data line 17, the pixel unit of the first row odd positions is represented with A, B represents the pixel of the first row even number positionUnit, C represent the pixel unit of the second row odd positions, and D represents the pixel unit of the second row even number position, and with t1, t2, t3The four-stage to charge with t4 signals pixel A to pixel D：
t1：Make scan line G1 and scan line G2 simultaneously for high level, between scan line G1 and scan line G2 with first switchEach pixel unit A that element 1 and second switch element 2 connect, which is opened and passed through multiple data lines 17, is filled with correct data electricityPressure, each public electrode block 111 between scan line G1 and scan line G2 are filled with the first common voltage by a plurality of common wire 18Vcom1 so that the voltage between each public electrode block 111 and auxiliary electrode 24 between scan line G1 and scan line G2Difference is more than preset value (such as larger than 2V)；
t2：Making scan line G1, scan line G2 is low level, is opened between scan line G1 and scan line G2 with first for high levelIt closes each pixel unit A that element 1 and second switch element 2 connect to close, be opened between scan line G1 and scan line G2 with thirdClose each pixel unit B that element 3 connects and open and pass through multiple data lines 17 and be filled with correct data voltage, scan line G1 andEach public electrode block 111 between scan line G2 is filled with the first common voltage Vcom1 by a plurality of common wire 18 so that scanningThe voltage difference between each public electrode block 111 and auxiliary electrode 24 between line G2 and scan line G2 is more than preset value；
t3：Make scan line G2 and scan line G3 simultaneously for high level, between scan line G2 and scan line G3 with first switchEach pixel unit C that element 1 and second switch element 2 connect, which is opened and passed through multiple data lines 17, is filled with correct data electricityPressure, each public electrode block 111 between scan line G2 and scan line G3 are filled with the second common voltage by a plurality of common wire 18Vcom2 so that the voltage difference between each public electrode block 111 and auxiliary electrode 24 between scan line G2 and scan line G3 is bigIn preset value；
t4：Making scan line G2, scan line G3 is low level, is opened between scan line G2 and scan line G3 with first for high levelIt closes each pixel unit C that element 1 and second switch element 2 connect to close, be opened between scan line G2 and scan line G3 with thirdClose each pixel unit D that element 3 connects and open and pass through multiple data lines 17 and be filled with correct data voltage, scan line G2 andEach public electrode block 111 between scan line G3 is filled with the second common voltage Vcom2 by a plurality of common wire 18 so that scanningThe voltage difference between each public electrode block 111 and auxiliary electrode 24 between line G2 and scan line G3 is more than preset value.
Since the voltage difference between all public electrode blocks 111 and auxiliary electrode 24 is larger, in array base in liquid crystal cellStronger vertical electric field E (as shown by the arrows in Figure 5) can be generated between plate 10 and color membrane substrates 20, since positive liquid crystal molecules existIt will be rotated under electric field action along the direction for being parallel to electric field line, therefore positive liquid crystal molecules will hair under vertical electric field E effectsRaw deflection, makes the angle of inclination between liquid crystal molecule and substrate increase and tilt, and liquid crystal molecule is from the posture changing that lies low to tiltPosture makes liquid crystal display device wide-angle observation light leakage occur, is reduced in strabismus Direction Contrast and visual angle narrows, liquid crystal displayDevice finally realizes that narrow viewing angle is shown.Specifically, under narrow viewing angle pattern, by common wire 18 to odd column public electrode blockThe the first common voltage Vcom1 applied on 111 and the second common voltage Vcom2 applied on even column public electrode block 111 are equalFor alternating voltage and the two polarity on the contrary, and the polarity of the first common voltage Vcom1 and the second common voltage Vcom2 reversion per frameOnce, the double-point inversion driving of liquid crystal display device can be realized.
In the present embodiment, width visual angle is realized by the voltage for the public electrode block 111 for manipulating array substrate 10 sideSwitching, and additionally increase common wire 18 and switch element, by data line 17 and common wire 18 to the pixel in pixel unit PElectrode 13 and public electrode block 111 synchronize charge, each charged good pixel unit P and pixel unit to be chargedNot by voltage coupling influence between P, can effectively reduce signal coupling, so as to solve the pixel of different location in panel due to byTo uneven (Mura) problem of picture display of the inconsistent generation of coupling influence of signal, display image quality is improved.Therefore, liquid crystalThe frame frequency of showing device can maintain the low frequency of 60Hz, advantageously reduce power consumption, and the charging time and charging for increasing pixel imitateFruit.
[second embodiment]
It please join Fig. 8 and Fig. 9, the liquid crystal display device that second embodiment of the invention provides and the difference of above-mentioned first embodimentIt is, the liquid crystal layer 30 in the present embodiment uses negative liquid crystal molecule.With technological progress, the performance of negative liquid crystal obtains significantlyIt improves, using also more extensive.In the present embodiment, as shown in figure 8, (i.e. liquid crystal display device does not apply any in original stateIn the case of voltage), the negative liquid crystal molecule in liquid crystal layer 30 has larger initial pre-tilt angle, i.e. negativity liquid relative to substrateBrilliant molecule is in original state relative to the inclined posture of substrate.
Narrow viewing angle pattern：It please join Fig. 8, the present embodiment is applied under narrow viewing angle pattern to the auxiliary electrode 24 of color membrane substrates 20Add auxiliary reference voltage Vref, opposite auxiliary is applied by each public electrode block 111 of the common wire 18 in array substrate 10Reference voltage Vref has the common voltage compared with small pressure difference, makes the voltage between all public electrode blocks 111 and auxiliary electrode 24Difference is less than preset value (such as less than 0.5V).At this point, due to the voltage difference between all public electrode blocks 111 and auxiliary electrode 24 compared withSmall, the angle of inclination of liquid crystal molecule hardly changes in liquid crystal layer 30, is maintained as lateral attitude, makes liquid crystal display deviceThere is wide-angle observation light leakage, reduced in strabismus Direction Contrast and visual angle narrows, liquid crystal display device realizes narrow viewing angle at this timeDisplay.
Specifically, under narrow viewing angle pattern, the auxiliary reference voltage Vref that auxiliary electrode 24 applies can be constant 0V,The voltage applied on every common wire 18 may be constant 0V so that each public electrode block 111 and auxiliary electrode 24 itBetween voltage difference be zero, can realize preferable narrow viewing angle effect.
Wide viewing angle pattern：It please join Fig. 9, the present embodiment is applied under narrow viewing angle pattern to the auxiliary electrode 24 of color membrane substrates 20Add auxiliary reference voltage Vref, opposite auxiliary is applied by each public electrode block 111 of the common wire 18 in array substrate 10Reference voltage Vref has the common voltage of larger pressure difference, makes the voltage between all public electrode blocks 111 and auxiliary electrode 24Difference is more than preset value (such as larger than 2V).At this point, due to the voltage difference between all public electrode blocks 111 and auxiliary electrode 24 compared withGreatly, stronger vertical electric field E (arrow institutes in such as Fig. 9 can be generated between array substrate 10 and color membrane substrates 20 in liquid crystal cellShow), since negative liquid crystal molecule will deflect under electric field action along perpendicular to the direction of electric field line, negative liquid crystal moleculeIt deflects under vertical electric field E effects, reduces the angle of inclination between liquid crystal molecule and substrate, the liquid crystal display deviceWide-angle light leakage phenomena occur can accordingly be reduced, and improved in strabismus Direction Contrast and visual angle increases, the liquid crystal display device is mostRealize that wide viewing angle is shown eventually.
Remaining structure and operation principle of the present embodiment may refer to above-mentioned first embodiment, and which is not described herein again.
The above embodiment is the embodiment of the present invention, is not intended to limit implementation and the interest field of the present invention, allThe equivalence changes and modification that the content described in the apllied protection domain of patent is made according to the present invention, should all be included in this hairIn bright scope of patent protection.