CN101539689B - Wide viewing angle liquid crystal display device and driving method thereof - Google Patents
Wide viewing angle liquid crystal display device and driving method thereof Download PDFInfo
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- CN101539689B CN101539689B CN 200810043182 CN200810043182A CN101539689B CN 101539689 B CN101539689 B CN 101539689B CN 200810043182 CN200810043182 CN 200810043182 CN 200810043182 A CN200810043182 A CN 200810043182A CN 101539689 B CN101539689 B CN 101539689B
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Abstract
The invention discloses a wide viewing angle liquid crystal display device and a driving method thereof. The wide viewing angle liquid crystal display device comprises an upper substrate and a lower substrate which are arranged oppositely, and a liquid crystal layer clamped between the upper substrate and the lower substrate, wherein data wires and grid wires are formed on the lower substrate and are vertical to each other; the data wires and the grid wires are crossed to form a plurality of pixel regions; liquid crystal molecules of the liquid crystal layer are vertical to the surface of the upper substrate and the surface of the lower substrate under an unpowered state; a pixel electrode is formed on the lower substrate, a first public electrode is formed on the upper substrate for forming a viewing angle mode of a first direction; a second public electrode is formed on the upper substrate for forming a viewing angle mode of a second direction; and the first public electrode and the second public electrode deflect towards opposite directions relative to the pixel electrode. The liquid crystal display device can reduce manufacturing cost, simplify process, and improve aperture opening ratio of pixel.
Description
Affiliated technical field
The present invention relates to a kind of liquid crystal indicator and driving method thereof, relate in particular to a kind of wide viewing angle liquid crystal display device and driving method thereof.
Background technology
Day by day universal along with consumable electronic product, liquid crystal indicator is because its slimming, low energy consumption, the advantage such as portable are obtaining using more and more widely.But compare with cathode-ray tube display, thin-film transistor LCD device (Thin Film Transistor, TFT-LCD) visual angle relative narrower, this has just brought very large limitation for it in the application to strict high-end field, visual angle, as fields such as Aero-Space, medical treatment.Fast development along with LCD field wide viewing angle technology, at present can be up to the standard visual angle and vertical angle of view, the visual angle of a lot of products is respectively 85 °/85 °, even larger visual angle, the display effect of image have also obtained very large raising, and application is more and more extensive.
LCD wide viewing angle technology mainly comprises vertical orientated (Vertical Alignment, VA) technology and face internal conversion (In Plane Switching, IPS) technology at present.The VA technology realizes by the method that forms works (Protrusion, projection) on pixel electrode.The advantage of vertical alignment mode is that positive surface contrast is high, usually can reach 600: 1 and more than.In addition, do not need friction treatment on processing procedure.The VA mode LCD works in normal black pattern, is conducive to the increase and minimizing light leak of contrast.At vertical orientated (the Multi-domain Vertical Alignment of multizone, MVA) in liquid crystal indicator, the formation small embossment is arranged on upper and lower substrate, liquid crystal layer is vertical orientated, the direction of polarizer slice and checking bias slice is orthogonal, so be dark attitude when not powering up.When making alive, produce tilting electric field between projection, the liquid crystal layer offset from perpendicular is arranged, thereby realize showing.But the existence of minute protrusions makes the manufacturing process of LCD complicated, has reduced the yield of product.
Develop rapidly along with individual mobile device, people are except proposing LCD the requirement of wide viewing angle, also need to realize the controllability at visual angle in different application scenarios, be narrow visual angle when person-to-person communication shows as Mobile phone screen, can realize wide visual angle when playing digital program or many people watch simultaneously; Consider based on privacy and particular utility equally, some liquid crystal display product need to switch display mode and carry out work under LOOK LEFT or LOOK RIGHT, and this just need to be able to coordinate the liquid crystal cell of the particular design of this mode of operation.
Traditional wide viewing angle liquid crystal cell also need to add the liquid crystal cell that at least one controls the visual angle on this liquid crystal cell, so the thickness of this viewing angle control liquid crystal system is larger except a liquid crystal cell that works in TN pattern or other pattern.
For the existing problem of prior art, this case designer relies on and to be engaged in the industry experience for many years, and in line with excelsior spirit, the active research improvement is so there has been the generation of wide viewing angle liquid crystal display device of the present invention.
Summary of the invention
The objective of the invention is provides a kind of wide viewing angle liquid crystal display device for the defective that above-mentioned prior art exists, and can realize wide viewing angle.
Another purpose of the present invention is to provide a kind of driving method of wide viewing angle liquid crystal display device, can be easy to realize wide viewing angle by this driving method.
In order to address the above problem, wide viewing angle liquid crystal display device of the present invention comprises upper substrate and the infrabasal plate that arranges in opposite directions, and is sandwiched in the liquid crystal layer between upper substrate and infrabasal plate.Form data line and the gate line that is vertically aligned with each other on described infrabasal plate, these data lines and gate line intersect to form a plurality of pixel regions.The liquid crystal molecule of described liquid crystal layer under powering state not perpendicular to the surface of upper substrate or the surface of infrabasal plate.Wherein form pixel electrode on infrabasal plate, form the first public electrode on upper substrate, in order to form the field-of-view mode of first direction, and form the second public electrode on upper substrate, in order to form the field-of-view mode of second direction, wherein, the first public electrode and the second public electrode are offset round about with respect to pixel electrode, alternately described the first common electrode and the second common electrode are applied voltage, form wide viewing angle.
In order to address the above problem, the invention provides a kind of driving method of wide viewing angle liquid crystal display device, wherein said wide viewing angle liquid crystal display device comprises upper substrate and the infrabasal plate that arranges in opposite directions, and is sandwiched in the liquid crystal layer between upper substrate and infrabasal plate.Form data line and the gate line that is vertically aligned with each other on described infrabasal plate, these data lines and gate line intersect to form a plurality of pixel regions.The liquid crystal molecule of described liquid crystal layer under powering state not perpendicular to the surface of upper substrate or the surface of infrabasal plate.Wherein form pixel electrode on infrabasal plate, form the first public electrode on upper substrate, in order to form the visual angle of first direction, and form the second public electrode on upper substrate, in order to form the visual angle of second direction, wherein, the first public electrode and the second public electrode are offset round about with respect to pixel electrode.Described first direction and described second direction are opposite direction, wherein, apply voltage for described the first public electrode and described pixel electrode, form the visual angle of first direction, apply voltage for described the second public electrode and described pixel electrode, form the visual angle of second direction, and alternately apply voltage for described the first public electrode and described the second public electrode, form wide viewing angle.
As preferred version of the present invention when forming the wide viewing angle pattern, within front half cycle length that drives signal, apply voltage for described the first public electrode and described pixel electrode, within rear half cycle length that drives signal, apply voltage for described the second public electrode and described pixel electrode.
As mentioned above, liquid crystal indicator of the present invention can improve pixel aperture ratio, simultaneously owing to not needing to adopt expensive compensate film, can effectively reduce the cost of liquid crystal indicator, simplify manufacturing process, and can reduce because multi-layer optical film absorbs the emergent light loss that incident light causes, further promote the transmitance of liquid crystal indicator.
Description of drawings
Fig. 1 is the schematic cross-section of wide viewing angle liquid crystal display device of the present invention.
Fig. 2 is that wide viewing angle liquid crystal display device of the present invention is at the vertical view of the first common electrode side.
Fig. 3 is that wide viewing angle liquid crystal display device of the present invention is at the vertical view of the second common electrode side.
The first common electrode that Fig. 4 (a) carries out the CF substrate after software simulation emulation for wide viewing angle liquid crystal display device of the present invention when in running order etc. contrast figure.
The second common electrode that Fig. 4 (b) carries out the CF substrate after software simulation emulation for wide viewing angle liquid crystal display device of the present invention when in running order etc. contrast figure.
Fig. 5 (a) applies director distribution figure after turning right under the 5V voltage status for the liquid crystal layer of wide viewing angle liquid crystal display device of the present invention at the first common electrode.
Fig. 5 (b) applies director distribution figure after turning left under the 5V voltage status for the liquid crystal layer of wide viewing angle liquid crystal display device of the present invention at the second common electrode.
Fig. 6 is that wide viewing angle liquid crystal display device of the present invention is in another embodiment in the vertical view of the 3rd common electrode side.
Fig. 7 is that wide viewing angle liquid crystal display device of the present invention is in another embodiment in the vertical view of the 4th common electrode side.
The 3rd common electrode that Fig. 8 (a) carries out the CF substrate after software simulation emulation in another embodiment for wide viewing angle liquid crystal display device of the present invention when in running order etc. contrast figure.
When the 4th common electrode that Fig. 8 (b) carries out the CF substrate after software simulation emulation in another embodiment for wide viewing angle liquid crystal display device of the present invention is in running order respectively etc. contrast figure.
Fig. 9 (a) applies director distribution figure 5V voltage status under turn left after at the first common electrode for the liquid crystal layer of wide viewing angle liquid crystal display device of the present invention in another embodiment.
Fig. 9 (b) applies director distribution figure 5V voltage status under turn right after at the second common electrode for the liquid crystal layer of wide viewing angle liquid crystal display device of the present invention in another embodiment.
In figure, the description of reference numerals of each assembly is as follows:
Wide viewing angle liquid crystal display device 1
The second common electrode 120 insulation courses 130
Thin-film transistor array base-plate 200 first pixel electrodes 210
The first film transistor 220 first data lines 230
First grid polar curve 240 first bridging lines 250
The first pixel region 260 first scales 400
The contrast lines 420 such as first area 410 first
Contrast line 450 the 4th zone 460 such as second
The first 510 second liquid crystal sections 520 of liquid crystal section
The 3rd the 4th liquid crystal section 540 of liquid crystal section 530
The 5th the 6th liquid crystal section 560 of liquid crystal section 550
The 3rd common electrode 610 the 4th common electrode 620
The second pixel electrode 630 second thin film transistor (TFT)s 640
The second data line 650 second gate lines 660
The second bridging line 670 second pixel regions 680
The second scale 700 the 5th zone 710
C grade contrast line 720 the 6th zone 730
SECTOR-SEVEN territory 740 fourth class contrast lines 750
Section Eight territory 760 the 7th liquid crystal section 810
The 8th the 9th liquid crystal section 830 of liquid crystal section 820
The tenth liquid crystal section 840
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being reached purpose and effect, below in conjunction with embodiment and coordinate graphic detailed description the in detail.
The first embodiment
See also Fig. 1, wide viewing angle liquid crystal display device 1 of the present invention comprise a CF substrate (color filtersubstrate) 100, one and CF substrate 100 be towards the thin-film transistor array base-plate 200 that arranges and be disposed at CF substrate 100 and thin-film transistor array base-plate 200 between liquid crystal layer 300 (not shown).Wherein, the liquid crystal molecule of described liquid crystal layer 300 (not shown) under powering state not perpendicular to the surface of CF substrate 100 and the surface of thin-film transistor array base-plate 200, nearly left end place's formation one first common electrode 110 in CF substrate 100 next-door neighbour's liquid crystal layer 300 sides, in nearly right-hand member place's formation one second common electrode 120 of CF substrate 100 next-door neighbour's liquid crystal layer 300 sides, and form an insulation course 130 between the first common electrode 110 and the second common electrode 120.Thin-film transistor array base-plate 200 upsides form one first pixel electrode 210, described the first common electrode 110 is to pass through etching technics with described the second common electrode 120, make the first common electrode 110 and the second common electrode 120 on CF substrate 100 have specific position relationship, all can form the lateral electric fields of different directions to satisfy to power up between rear described the first common electrode 110 and described the second common electrode 120 and the first pixel electrode 210.After the first common electrode 110 and the first pixel electrode 210 or the second common electrode 120 and 210 of the first pixel electrodes added electric field, the liquid crystal molecule of liquid crystal layer 300 will correspondingly rotate, and concrete rotating manner hereinafter will be done detailed description.
See also Fig. 2, form one on thin-film transistor array base-plate 200 and think that as a plurality of the first film transistors 220, use of pixel switch the first pixel electrode 210 of described thin-film transistor array base-plate 200 provides many first data lines 230, of signal to provide many first grid polar curves 240 of switching signal and the first bridging line 250 that is used as the memory capacitance bottom electrode for described the first film transistor 220.The first data line 230 defines a plurality of the first pixel regions 260 with first grid polar curve 240, and each the first film transistor 220 is disposed at respectively in each first pixel region 260, and the first film transistor 220 is electrically connected with the first data line 230 and first grid polar curve 240 respectively.
See also Fig. 2 and Fig. 3, principle and the driving method that this embodiment realizes wide viewing angle now is described in detail in detail by reference to the accompanying drawings.When the first common electrode 110 and the first pixel electrode 210 are applied voltage, form the lateral electric fields that is tilted to the left therebetween, therefore, the liquid crystal molecule of the liquid crystal layer 300 between CF substrate 100 and thin-film transistor array base-plate 200 tilts to the right, rotates.Equally, when the second common electrode 120 and the first pixel electrode 210 are applied voltage, form the lateral electric fields that is tilted to the right therebetween, therefore, the liquid crystal molecule of the liquid crystal layer 300 between CF substrate 100 and thin film transistor (TFT) pipe array base palte 200 is tilted to the left, rotates.On the sequential relationship that drives, alternately apply the shared signal that frequency is 120Hz on the first common electrode 110 of CF substrate 100 and the second common electrode 120, at this moment, the one common electrode is in running order, and another common electrode is in floating state.Particularly, when namely the first common electrode 110 and the first pixel electrode 210 being applied voltage, the first common electrode 110 is in running order, and the second common electrode 120 is in floating state, thereby realizes LOOK LEFT; When the second common electrode 120 and the first pixel electrode 210 apply voltage, the second common electrode 120 is in running order, and the first common electrode 110 is in floating state, thereby realizes LOOK RIGHT.Namely on each sequential, only there are one of the first common electrode 110 and second common electrode 120 and the first pixel electrode 210 of thin film transistor (TFT) pipe array base palte 200 to form the lateral electric fields distribution on CF substrate 100, and then the orientation of the liquid crystal molecule of definite liquid crystal layer 300, and the common electrode of another place and floating state does not exert an influence to Electric Field Distribution.Owing to being under the signal driver of 120Hz in frequency, switch fast at the visual angle, left and right, is limited to the persistence of vision of human eye, thereby realize that full visual angle shows.
See also Fig. 4 (a) and Fig. 4 (b), Fig. 4 (a) and Fig. 4 (b) are when not adding compensate film only adopting upper and lower line polaroid (not shown), and said structure is carried out the first common electrode 110 on CF substrate 100 after software simulation emulation and the second common electrode 120 contrast figure such as in running order respectively.Wherein, upper and lower line polaroid is respectively to be 45 degree, 135 degree configurations with first grid polar curve 230, in frequency is to realize full visual angle under the driving signal of 120Hz.In contrast and figure, the color relation is measured with the first scale 400.The contrast figure that Fig. 4 (a) turns right for the liquid crystal molecule of liquid crystal layer 300, wherein, 410 interior contrasts are less than 10: 1 in the first area, equal 10: 1 in contrast line 420 place's contrasts such as first, in the interior contrast of second area 430 greater than 10: 1.The contrast figure that Fig. 4 (b) turns left for liquid crystal layer 300, wherein, the 3rd zone 440 interior contrasts equaled 10: 1 less than 10: 1 in contrast line 450 place's contrasts such as second, in the 4th zone 460 interior contrasts greater than 10: 1.
See also Fig. 5 (a) and Fig. 5 (b), when applying 5V voltage between the first common electrode 110 and the first pixel electrode 210, namely in frequency was front half cycle length of driving signal of 120Hz, liquid crystal layer 300 turned right under the driving of external electric field, formed three farmlands.Particularly, namely in two zones of the first liquid crystal section 510, the liquid crystal molecule of liquid crystal layer 300 tilts to 90 degree directions, forms a farmland; In two zones of the second liquid crystal section 520, the liquid crystal molecule of liquid crystal layer 300 tilts to-90 degree directions, forms the farmland with the above farmland symmetry and inclined in opposite directions; The liquid crystal molecule of the liquid crystal layer 300 in the 3rd liquid crystal section 530 zones forms a farmland because the effect of lateral electric fields is tilted to the right.In the case, whole wide viewing angle liquid crystal display device 1 forms LOOK LEFT.Equally, in Fig. 5 (b), when applying the voltage of 5V between the second common electrode 120 and the first pixel electrode 210, namely in frequency is rear half cycle length of driving signal of 120Hz, the liquid crystal molecule of liquid crystal layer 300 turns left under electric field driven outside, forms three farmlands.Particularly, namely in two zones of the 4th liquid crystal section 540, the liquid crystal molecule of liquid crystal layer 300 tilts to 90 degree directions, forms a farmland; The liquid crystal molecule of the liquid crystal layer 300 in two zones of the 5th liquid crystal section 550 tilts to-90 degree directions, forms the farmland that tilts with the above farmland symmetry and reverse direction; The liquid crystal molecule of the liquid crystal layer 300 in the 6th liquid crystal section 560 zones forms a farmland because the effect of tilting electric field is tilted to the left.In the case, whole wide viewing angle liquid crystal display device 1 forms LOOK RIGHT.When proportion is the signal driven of 120Hz, be limited to the persistence of vision of human eye, can obtain the wide viewing angle display effect at full visual angle.
In sum, under described the first embodiment pattern of wide viewing angle liquid crystal display device 1 of the present invention, only need to use the line polaroid, and do not need to adopt compensate film that the visual angle is compensated.By this structural design, this dot structure and driving method can reduce production costs when realizing wide viewing angle, increase simultaneously the transmitance of light, increase to a certain extent the brightness of wide viewing angle liquid crystal display device 1.Moreover the present invention also can make up the display performance decline that aperture opening ratio descends and brings in the liquid crystal indicator of small pixel; In addition, the left and right lateral electric fields that the small-sized pixel edge produces can make the liquid crystal molecule of the VA mode liquid crystal layer 300 in said structure tilt by the direction of setting in the short period of time, can not occur that thermal perturbation brings out of order and produce the farmland line.
The second embodiment
See also Fig. 6 and Fig. 7, in a second embodiment, wide viewing angle liquid crystal display device of the present invention and wide viewing angle liquid crystal display device 1 difference in the first embodiment are that the common electrode structure that in the second embodiment, the wide viewing angle liquid crystal display device 1 in wide viewing angle liquid crystal display device and the first embodiment adopts is different, particularly, namely the structure of the 3rd common electrode 610 and the 4th common electrode 620 is different from the first common electrode 110 and the second common electrode 120.Please continue to consult Fig. 6 and Fig. 7, form a plurality of second thin film transistor (TFT)s 640 as pixel switch on thin-film transistor array base-plate 200, many second data lines 650 of signal be provided, provide many second gate lines 660 of switching signal and as the second bridging line 670 of memory capacitance bottom electrode for described the second thin film transistor (TFT) 640 with the second pixel electrode 630 of thinking described thin-film transistor array base-plate 200.The second data line 650 defines a plurality of the second pixel regions 680 with second gate line 660, and each second thin film transistor (TFT) 640 is disposed at respectively in each second pixel region 680, and the second thin film transistor (TFT) 640 is electrically connected with the second data line 650 and second gate line 660 respectively.After the 3rd common electrode 610 and 630 of the second pixel electrodes were applied voltage, the liquid crystal molecule of liquid crystal layer 300 will corresponding run-off the straight to the right, rotation.The liquid crystal molecule that is positioned at the liquid crystal layer 300 in the second pixel electrode 630 centre positions rotates under the lateral electric fields that the 3rd common electrode 610 provides.After the 4th common electrode 620 and 630 of the second pixel electrodes were applied voltage, the liquid crystal molecule of liquid crystal layer 300 will corresponding run-off the straight left, rotation.The liquid crystal molecule that is positioned at the liquid crystal layer 300 in the second pixel electrode 630 centre positions upwards rotates under the lateral electric fields that the 4th common electrode 620 provides.
See also Fig. 8 (a) and Fig. 8 (b), when not adding compensate film only adopting upper and lower line polaroid (not shown), to said structure carry out the 3rd common electrode 610 on CF substrate 100 after software simulation emulation and the 4th common electrode 620 under in running order respectively etc. contrast figure.Upper and lower linear polarization mating plate is respectively to be 45 degree, 135 degree configurations with second gate line 660, if the transmitance that needs further to improve wide viewing angle liquid crystal display device 1 can adopt 1/4 λ slide.Wherein, in contrast and figure, the color relation is measured with the second scale 700.The contrast figure that Fig. 8 (a) turns right for the liquid crystal molecule of liquid crystal layer 300, wherein, the 5th the zone 710 interior contrasts less than 10: 1, be that 720 place's contrasts equal 10: 1 at C grade contrast line, the 6th the zone 730 interior contrasts greater than 10: 1.The contrast figure that Fig. 8 (b) turns left for the liquid crystal molecule of liquid crystal layer 300, wherein, SECTOR-SEVEN territory 740 interior contrasts equaled 10: 1 less than 10: 1 in fourth class contrast line 750 place's contrasts, in Section Eight territory 760 interior contrasts greater than 10: 1.
See also Fig. 9 (a) and Fig. 9 (b), when applying the voltage of 5V between to the 3rd common electrode 610 and the second pixel electrode 630, namely in the first half that drives signal in cycle length, the liquid crystal molecule of liquid crystal layer 300 forms two farmlands under the effect of lateral electric fields.Wherein, the 7th liquid crystal section 810 zones show the farmland that liquid crystal layer 300 is arranged left, and the 8th liquid crystal section 820 zones show the farmland that liquid crystal layer 300 is arranged downwards, and whole wide viewing angle liquid crystal display device forms LOOK LEFT.Equally, in Fig. 9 (b), when applying the voltage of 5V between to the 4th common electrode 620 and the second pixel electrode 630, namely within the later half cycle length that drives signal, the liquid crystal molecule of liquid crystal layer 300 forms two farmlands under the effect of lateral electric fields.Wherein, the 9th liquid crystal section 830 zones show the farmland that liquid crystal layer 300 is arranged to the right, and the tenth liquid crystal section 840 zones show the farmland that liquid crystal layer 300 is upwards arranged, and whole wide viewing angle liquid crystal display device forms LOOK RIGHT.When the proportion signal that is 120Hz alternately applies voltage to the 3rd common electrode 610 and the 4th common electrode 620, be limited to the persistence of vision of human eye, can obtain the wide viewing angle display effect at full visual angle.
In sum, the structural design by this wide viewing angle liquid crystal display device and can realize the effect at full visual angle on driving method has reduced cost simultaneously, has increased transmitance backlight.Moreover, also reduced greatly bad due to this processing procedure generation owing to not needing to use friction processing procedure, the described technology of this invention to improve production efficiency.
Those skilled in the art all should be appreciated that, in the situation that do not break away from the spirit or scope of the present invention, can carry out various modifications and variations to the present invention.Thereby, if when any modification and modification fall in the protection domain of appended claims and equivalent, think that the present invention contains these modifications and modification.
Claims (6)
1. a wide viewing angle liquid crystal display device comprises:
One upper substrate forms respectively one first common electrode in described upper substrate, and in order to form the visual angle of first direction, one second common electrode is in order to form the visual angle of second direction;
One infrabasal plate, described infrabasal plate and described upper substrate are towards setting, form data line and the gate line that is vertically aligned with each other in described infrabasal plate, these data lines and gate line intersect to form a plurality of pixel regions mutually, and form a pixel electrode on described infrabasal plate, the first common electrode and the second common electrode that form on described upper substrate are offset round about with respect to described pixel electrode, and are separated with insulation course between between described the first common electrode and the second common electrode;
One liquid crystal layer, described liquid crystal layer is sandwiched between described upper substrate and infrabasal plate, and under powering state not, the liquid crystal molecule of described liquid crystal layer is perpendicular to the surface of described upper substrate and the surface of described infrabasal plate;
Wherein, apply the display view angle that voltage forms first direction between described the first common electrode and pixel electrode, apply the display view angle that voltage forms second direction between described the second common electrode and pixel electrode, alternately apply voltage for described the first common electrode and described the second common electrode, form the wide viewing angle display mode.
2. wide viewing angle liquid crystal display device according to claim 1 is characterized in that: formed the first common electrode of described upper substrate and the second common electrode are to form skew with respect to the pixel electrode of described infrabasal plate by etch process.
3. wide viewing angle liquid crystal display device according to claim 1, it is characterized in that: described the first common electrode is offset left with respect to described pixel electrode, and described the second common electrode is offset to the right with respect to described pixel electrode.
4. the driving method of a wide viewing angle liquid crystal display device, described wide viewing angle liquid crystal display device comprises:
One upper substrate forms respectively one first common electrode in described upper substrate, and in order to form the field-of-view mode of first direction, one second common electrode is in order to form the field-of-view mode of second direction;
One infrabasal plate, described infrabasal plate and described upper substrate are towards setting, form data line and the gate line that is vertically aligned with each other on described infrabasal plate, these data lines and gate line intersect to form a plurality of pixel regions mutually, and form a pixel electrode on described infrabasal plate, the first common electrode and the second common electrode that form in described upper substrate are offset round about with respect to described pixel electrode, and are separated with insulation course between between described the first common electrode and the second common electrode;
One liquid crystal layer, liquid crystal layer are sandwiched between described upper substrate and infrabasal plate, and under powering state not, the liquid crystal molecule of liquid crystal layer is perpendicular to the surface of described upper substrate and the surface of described infrabasal plate;
Wherein, add electric signal in described the first common electrode, form the display view angle of first direction,
Add electric signal in described the second common electrode, form the display view angle of second direction,
Alternately apply voltage for described the first common electrode and described the second common electrode, form the wide viewing angle display mode.
5. the driving method of wide viewing angle liquid crystal display device according to claim 4, it is characterized in that: adding of described voltage is in the first half that drives signal in cycle length, described pixel electrode and described the first common electrode are applied voltage, and within the later half cycle length that drives signal, apply voltage for described pixel electrode and described the second common electrode.
6. the driving method of wide viewing angle liquid crystal display device according to claim 5 is characterized in that: adding of described voltage is that frequency with 120Hz alternately applies voltage for described the first common electrode and described the second common electrode.
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