CN107942590A - Array base palte and liquid crystal display device and driving method - Google Patents
Array base palte and liquid crystal display device and driving method Download PDFInfo
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- CN107942590A CN107942590A CN201711158700.3A CN201711158700A CN107942590A CN 107942590 A CN107942590 A CN 107942590A CN 201711158700 A CN201711158700 A CN 201711158700A CN 107942590 A CN107942590 A CN 107942590A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
A kind of array base palte and liquid crystal display device and driving method, wherein the array base palte is equipped with multi-strip scanning line, a plurality of data lines and multiple pixel units, multiple public electrode bars are additionally provided with the array base palte, each public electrode bar extends along data cable direction and the spaced arrangement on scan-line direction of the plurality of public electrode bar, each public electrode bar is concatenated by multiple public electrode blocks in a manner of Z-shaped arrangement to be formed, each public electrode block corresponds to a pixel unit, each public electrode bar positioned at odd positions on scan-line direction is linked together by first voltage input line, the each public electrode bar put on scan-line direction positioned at even bit is linked together by second voltage input line.The present invention can improve the phenomenon that picture shows brightness unevenness while view angle switch is realized.
Description
Technical field
The present invention relates to the technical field of liquid crystal display, more particularly to a kind of array base palte and liquid crystal display device and drive
Dynamic method.
Background technology
Liquid crystal display device (liquid crystal display, LCD) has good, small, light-weight, the low drive of image quality
The advantages of dynamic voltage, low-power consumption, radiationless and manufacture advantage of lower cost, occupy an leading position in flat display field.
With the continuous progress of LCD technology, the visible angle of display is widened via original 120 ° or so
More than 160 °, while people bring visual experience at the big visual angle of enjoyment, it is also desirable to effectively protection trade secret and individual privacy,
To avoid screen message leaks and caused by business loss or embarrassment.Therefore in addition to wide viewing angle, it is also necessary to which display device can
To switch to narrow viewing angle.
The switching of current wide viewing angle and narrow viewing angle, blocks function come what is realized, this is just needed generally by shutter
Additionally to prepare a Protective film outside display device, use very inconvenient.
Recently, industry also begins to propose the viewing angle control electrode using colored filter substrate (CF) side to liquid crystal molecule
Apply a vertical electric field, to realize width view angle switch.Please join Fig. 1 and Fig. 2, the liquid crystal display device include upper substrate 11,
Infrabasal plate 12 and the liquid crystal layer 13 between upper substrate 11 and infrabasal plate 12, upper substrate 11 are equipped with viewing angle control electrode 111,
Infrabasal plate 12 is equipped with public electrode 121 and pixel electrode 122.As shown in Figure 1, when wide viewing angle is shown, regarding on upper substrate 11
Angle coordination electrode 111 does not give voltage, and liquid crystal display device realizes that wide viewing angle is shown.As shown in Fig. 2, working as needs narrow viewing angle to show
When, the viewing angle control electrode 111 on upper substrate 11 gives the voltage of higher magnitude, and the liquid crystal molecule in liquid crystal layer 13 can be because vertical
Direction electric field E (as shown by arrows in FIG.) and tilt, liquid crystal display device finally realizes narrow regard because light leak and contrast reduce
Angle.
As shown in figure 3, for reverse display, the polarity of the data voltage of two neighboring pixel unit application is different, but
Narrow viewing angle is shown down, can cause the voltage difference between the pixel electrode 122 of two neighboring pixel unit and viewing angle control electrode 111
It is different so that the vertical electric field pressure difference that the two neighboring pixel unit of positive and negative opposed polarity produces is different, causes two neighboring picture
Plain unit brightness is inconsistent, there are the phenomenon of brightness unevenness, as shown in figure 4, pixel unit of the pixel unit in left side than right side
It is partially dark.
The content of the invention
It is an object of the invention to provide a kind of array base palte and liquid crystal display device and driving method, it can be achieved that different fields
The width view angle switch of conjunction, and improve the phenomenon that picture shows brightness unevenness.
The embodiment of the present invention provides a kind of array base palte, the array base palte be equipped with multi-strip scanning line, a plurality of data lines and
Multiple pixel units, are additionally provided with multiple public electrode bars on the array base palte, each public electrode bar prolongs along data cable direction
Stretch and the spaced arrangement on scan-line direction of the plurality of public electrode bar, each public electrode bar is by multiple public electrode blocks
Concatenate to be formed in a manner of Z-shaped arrangement, each public electrode block corresponds to a pixel unit, positioned at strange on scan-line direction
Each public electrode bar that numerical digit is put is linked together by first voltage input line, is put on scan-line direction positioned at even bit
Each public electrode bar linked together by second voltage input line.
Further, the Z-shape arranged distribution of each pixel unit being connected with same data line is in the data cable both sides
And one public electrode bar of corresponding covering.
Further, each public electrode block is planar structure, and pixel electrode, each picture are additionally provided with each pixel unit
Plain electrode is narrow slit structure.
The embodiment of the present invention also provides a kind of liquid crystal display device, including array base palte, is oppositely arranged with the array base palte
Color membrane substrates and the liquid crystal layer between the array base palte and the color membrane substrates, the array base palte be above-mentioned array base
Plate, the color membrane substrates are equipped with electrode.
The embodiment of the present invention also provides a kind of driving method for being used to drive above-mentioned liquid crystal display device, including：
Under a kind of field-of-view mode, apply first voltage to the electrode of the color membrane substrates, by the first voltage input line to the array base
The public electrode bar in odd positions applies second voltage on plate, by the second voltage input line to locating on the array base palte
Public electrode bar in even number position applies tertiary voltage, the voltage difference between all public electrode bars and the electrode is less than one
Preset value；Under second of field-of-view mode, apply the 4th voltage to the electrode of the color membrane substrates, pass through the first voltage input line
The public electrode article in odd positions applies the 5th voltage on to the array base palte, by the second voltage input line to the battle array
The public electrode article in even number position applies the 6th voltage on row substrate, makes the electricity between all public electrode bars and the electrode
Pressure difference is more than the preset value, and the polarity of the 5th voltage and the opposite polarity of the 6th voltage, is connected with same data line
Each pixel unit for be connected with the same data line of data voltage for applying of each pixel unit corresponding to the public affairs that cover
The voltage that common electrode bar applies has identical polarity.
Further, the 4th voltage and the first voltage are identical voltage.
Further, the 4th voltage and the first voltage are 0V.
Further, the 4th voltage, the tertiary voltage, the second voltage and the first voltage are identical voltage.
Further, the periodicity that the 6th voltage fluctuates centered on being opposite 4th voltage with the 5th voltage exchanges
Voltage.
Further, which uses positive liquid crystal molecules, which is wide viewing angle pattern, this second
Kind field-of-view mode is narrow viewing angle pattern；Or, the liquid crystal layer uses negative liquid crystal molecule, which is narrow viewing angle mould
Formula, second of field-of-view mode are wide viewing angle pattern.
Array base palte and liquid crystal display device and driving method provided in an embodiment of the present invention, it is only necessary to by varying application
Voltage signal on each public electrode bar of array base palte, you can make the liquid crystal display device realize wide viewing angle pattern with
Switching between narrow viewing angle pattern；Pass through the bipolar drive of each public electrode bar so that adjacent the two of positive and negative opposed polarity
Pixel electrode in a pixel unit is identical with the voltage difference between public electrode block, improves two neighboring pixel unit brightness not
The problem of consistent, so as to solve the phenomenon of two neighboring pixel unit brightness unevenness；Further, due to each public electrode bar
Concatenated and formed in a manner of Z-shaped arrangement by multiple public electrode blocks, the present invention can also be realized with the type of drive of column inversion
The display effect of dot inversion, display image quality is improved while saving power consumption.
Brief description of the drawings
Fig. 1 is a kind of schematic partial cross-sectional view of the existing liquid crystal display device under wide viewing angle.
Fig. 2 is schematic partial cross-sectional view of the liquid crystal display device under narrow viewing angle in Fig. 1.
Fig. 3 is that voltage of the liquid crystal display device under narrow viewing angle drives schematic diagram in Fig. 1.
Fig. 4 is the display effect schematic diagram of liquid crystal display device two neighboring pixel unit under narrow viewing angle in Fig. 1.
Fig. 5 is the electrical block diagram of array base palte in first embodiment of the invention.
Fig. 6 is the planar structure schematic diagram of the public electrode bar on array base palte in Fig. 5.
Fig. 7 is the schematic partial cross-sectional view of liquid crystal display device in second embodiment of the invention.
Fig. 8 is schematic diagram of the liquid crystal display device in narrow viewing angle in Fig. 7.
Fig. 9 is that voltage of the liquid crystal display device under narrow viewing angle drives schematic diagram in Fig. 7.
Figure 10 is a kind of waveform diagram of the 6th voltage and the 5th voltage in one embodiment of the invention.
Figure 11 is the display effect schematic diagram of liquid crystal display device two neighboring pixel unit under narrow viewing angle in Fig. 7.
Figure 12 a and Figure 12 b are the plane schematic block diagram of liquid crystal display device in Fig. 7.
Figure 13 is the schematic partial cross-sectional view of liquid crystal display device in third embodiment of the invention.
Figure 14 is schematic diagram of the liquid crystal display device in wide viewing angle in Figure 13.
Embodiment
Further to illustrate the present invention to reach technical approach and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawings and embodiments, to embodiment, structure, feature and its effect of the present invention, describe in detail as after.
[first embodiment]
It please join Fig. 5 and Fig. 6, first embodiment of the invention provides a kind of array base palte 20, which is equipped with more
Bar scan line 21, a plurality of data lines 22, multiple pixel electrodes 23, multiple public electrode bars 24 and multiple thin film transistor (TFT)s 26.
The multi-strip scanning line 21 intersects the multiple pixel lists for limiting and being formed and being arranged in array with a plurality of data lines 22 insulation
First P, each pixel unit P are limited by two 21 and two data lines 22 of scan line and formed.
A thin film transistor (TFT) 26 and a pixel electrode 23 are equipped with each pixel unit P, pixel electrode 23 is by thin
Film transistor 26 is connected with the scan line 21 and data cable 22 for closing on the thin film transistor (TFT) 26.Specifically, thin film transistor (TFT) 26 wraps
Include grid, active layer, source electrode and drain electrode, wherein grid is electrically connected corresponding scan line 21, grid can be independently arranged or
Can be a part for scan line 21, source electrode is electrically connected corresponding data cable 22, and drain electrode is electrically connected corresponding pixel electrode 23.
Each public electrode bar 24 extends along 22 direction of data cable and the plurality of public electrode bar 24 is in 21 side of scan line
Upward spaced arrangement, each public electrode bar 24 are concatenated in a manner of Z-shaped arrangement by multiple public electrode blocks 25 and formed, often
A public electrode block 25 corresponds to a pixel unit P.It is located at each public electrode of odd positions on 21 direction of scan line
Bar 24 is linked together by first voltage input line 201, each common electrical put on 21 direction of scan line positioned at even bit
Pole bar 24 is linked together by second voltage input line 202.In this way, the electricity of first voltage input line 201 and second can be passed through
Pressure input line 202 applies different voltage signals respectively to each public electrode bar 24 from being each connected.
The each Z-shape arranged distributions of pixel unit P being connected with same data line 22 are in 22 both sides of data cable and right
A public electrode bar 24 should be covered, i.e., for the row pixel unit P between per adjacent two data line 22, is in strange
The pixel unit P that numerical digit is put is connected with the data cable 22 positioned at row pixel unit P sides, is in the pixel unit of even number position
P is connected with the data cable 22 positioned at the row pixel unit P opposite sides.
[second embodiment]
As shown in fig. 7, second embodiment of the invention provides a kind of liquid crystal display device, which includes display
Panel 50, the display panel 50 include above-mentioned array base palte 20, the color membrane substrates 30 being oppositely arranged with array base palte 20 and position
Liquid crystal layer 40 between array base palte 20 and color membrane substrates 30.
In the present embodiment, on array base palte 20, the plurality of pixel electrode 23 and the plurality of public electrode block 25 be not positioned at
Insulating layer 29 is folded with layer and between the two, allows to be formed as edge electricity using the liquid crystal display device of the array base palte 20
Field switch type (Fringe Field Switching, FFS).The liquid crystal display device is in normal display, public electrode block 25
Fringe field can be produced between pixel electrode 23, make liquid crystal molecule the plane internal rotation almost parallel with substrate with obtain compared with
Wide visual angle.
Pixel electrode 23 is located at the top of public electrode block 25 in the present embodiment, and each public electrode block 25 is planar structure,
Each pixel electrode 23 be narrow slit structure, so beneficial to the electric field produced between public electrode block 25 and pixel electrode 23 from pixel
Passed out in the slit (figure is not marked) of electrode 23, will not be shielded and cause the declines to liquid crystal molecule.
Color membrane substrates 30 are equipped with color blocking layer 31, black matrix (BM) 32 and electrode 33.Color blocking layer 31 is, for example, R, G, B color
Resistance.Electrode 33 is entire plane electrode, i.e. 33 whole face of electrode covering color membrane substrates 30.In the present embodiment, color blocking layer 31 and black
Matrix 32 is arranged on color membrane substrates 30 towards on the inner surface of 40 side of liquid crystal layer, other film layer structures are arranged on 31 He of color blocking layer
In black matrix 32.
Specifically, at least an insulating layer or flatness layer are also provided with color membrane substrates 30, with realize insulating effect or
Make the inner side of color membrane substrates 30 become flat.In the present embodiment, it is flat that color membrane substrates 30 are additionally provided with the first flatness layer 35 and second
Layer 36, the first flatness layer 35 covering color blocking layer 32 and black matrix 31, electrode 33 are formed on the first flatness layer 35, the second flatness layer
36 covering electrodes 33.
In the present embodiment, the liquid crystal molecule in liquid crystal layer 40 is positive liquid crystal molecules, and it is fast that positive liquid crystal molecules possess response
The advantages of.Such as Fig. 7, under original state (i.e. liquid crystal display device does not apply the situation of any voltage), in liquid crystal layer 40 just
Property liquid crystal molecule be presented the lie low posture substantially parallel with substrate 20,30, i.e., the long axis direction of positive liquid crystal molecules and substrate 20,
30 surface is substantially parallel.But in practical applications, can have between the positive liquid crystal molecules in liquid crystal layer 40 and substrate 20,30
There is less initial pre-tilt angle, the scope of the initial pre-tilt angle may be less than or equal to 10 degree, i.e.,：0°≦θ≦10°.
The present embodiment is applied on the electrode 33 of color membrane substrates 30 and the public electrode bar 24 of array base palte 20 by control
Voltage signal, the 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. 7, under wide viewing angle pattern, apply first voltage to the electrode 33 of color membrane substrates 30, lead to
Cross first voltage input line 201 and apply second voltage to the public electrode bar 24 in odd positions on array base palte 20, pass through
Second voltage input line 202 applies tertiary voltage to the public electrode bar 24 in even number position on array base palte 20, makes to own
Voltage difference between public electrode bar 24 and electrode 33 is less than a preset value (such as less than 1V).At this time, due to all public electrodes
Voltage difference between the public electrode block 25 and electrode 33 of bar 24 is smaller, and the angle of inclination of liquid crystal molecule is hardly in liquid crystal layer 40
Change, be maintained as the posture that lies low, therefore the liquid crystal display device realizes that normal wide viewing angle is shown.
First voltage is represented with V1, V2 represents second voltage, and V3 represents tertiary voltage, and in the present embodiment, first voltage can
Think constant 0V (i.e. V1=0), second voltage and tertiary voltage can be a certain magnitude of voltage (i.e. V2≤1V, the V3 less than 1V
≤1V).Wherein, second voltage and tertiary voltage can be DC voltage, or alternating voltage.Second voltage and the 3rd electricity
Pressure can be same polarity or opposite polarity.The present embodiment is under wide viewing angle pattern, due to second voltage, tertiary voltage
Voltage difference between first voltage is smaller, so second voltage and tertiary voltage can be not added with excessively limiting, as long as second
Voltage difference between voltage, tertiary voltage and first voltage is less than preset value, and so influence to image quality is relatively controllable.Tool
Body, second voltage and tertiary voltage can also be 0V, i.e. V1=V2=V3=0, so each public electrode block 25 and electrode
Voltage difference between 33 is zero, to realize preferable wide viewing angle effect.
Narrow viewing angle pattern：It please join Fig. 8, under narrow viewing angle pattern, apply the 4th voltage to the electrode 33 of color membrane substrates 30, lead to
Cross first voltage input line 201 and apply the 5th voltage to the public electrode article 24 in odd positions on array base palte 20, pass through
Second voltage input line 202 applies the 6th voltage to the public electrode article 24 in even number position on array base palte 20, makes to own
Voltage difference between public electrode bar 24 and electrode 33 is more than above-mentioned preset value (such as larger than 1V).At this time, due to all common electricals
Voltage difference between the public electrode block 25 and electrode 33 of pole bar 24 is larger, in array base palte 20 and color membrane substrates in liquid crystal cell
Stronger vertical electric field E (as shown by the arrows in Figure 8) can be produced between 30, due to positive liquid crystal molecules under electric field action by edge
The direction parallel to electric field line rotates, therefore positive liquid crystal molecules will deflect under vertical electric field E effects, make liquid crystal
Angle of inclination between molecule and substrate 20,30 increases and tilts, and liquid crystal molecule is lateral attitude from the posture changing that lies low, and makes liquid
There is wide-angle observation light leak in crystal device, is reduced in strabismus Direction Contrast and visual angle narrows, the liquid crystal display device is most
Realize that narrow viewing angle is shown eventually.
4th voltage is represented with V4, V5 represents the 5th voltage, and V6 represents the 6th voltage, and in the present embodiment, the 4th voltage can
Think constant 0V (i.e. V4=0), the 5th voltage and the 6th voltage can be amplitude more than 3V a certain magnitude of voltage (i.e. | V5 | >=
3V,|V6|≥3V).Incorporated by reference to Fig. 9 and Figure 10, the present embodiment is under narrow viewing angle pattern, polarity and the 6th voltage of the 5th voltage
Opposite polarity, i.e., one positive one is negative.Specifically, the 6th voltage and the 5th voltage can be with respect to fluctuating centered on the 4th voltage
Periodic AC voltage, such as the 4th voltage are that constant 0V, the 6th voltage and the 5th voltage are more than for opposite polarity and amplitude
The driving frequency of the periodicity ac square wave of 3V, the 6th voltage and the 5th voltage can be the 1/ of the frame frequency of the liquid crystal display device
2, i.e., in a cycle of the 6th voltage and the 5th voltage, which refreshes two frames (frame) picture, but unlimited
In this.
Moreover, what each pixel unit P that the present embodiment under narrow viewing angle pattern, is connected with same data line 22 applied
The public electrode bar for the corresponding coverings of each pixel unit P that data voltage (i.e. Vdata) is connected with the same data line 22
24 voltages applied have identical polarity.That is, the data electricity that each pixel unit P being connected with the first data line 22 applies
Press if negative polarity, then first common electrical covered corresponding to each pixel unit P being connected with the first data line 22
The 5th voltage that pole article 24 applies also is negative polarity；At the same time correspondingly, each pixel unit P being connected with the second data line 22
The data voltage of application is positive polarity, the Article 2 covered corresponding to each pixel unit P being connected with the second data line 22
The 6th voltage that public electrode article 24 applies also is positive polarity.In this way, by the bipolar drive of each public electrode bar 24, make
The pixel electrode 23 obtained in the two neighboring pixel unit of positive and negative opposed polarity is identical with the voltage difference between public electrode block 25,
Improve the problem of two neighboring pixel unit brightness is inconsistent, as shown in figure 11, the display brightness ratio of two neighboring pixel unit
It is more uniform, so that the phenomenon of two neighboring pixel unit brightness unevenness is solved, and also the present embodiment can also be with the drive of column inversion
Flowing mode realizes the display effect of dot inversion, while saving power consumption improves display image quality.
The present embodiment from the viewing angle control electrode of color membrane substrates side by the voltage for manipulating width view angle switch by going to battle array
Row substrate-side public electrode block 25 is realized, can also avoid illuminated state light leak, realize ON state brightness under narrow viewing angle pattern with it is wide
Field-of-view mode is the same, lifts penetrance and contrast under narrow viewing angle.
Therefore the present embodiment is no matter under wide viewing angle pattern or narrow viewing angle pattern, to the electrode of color membrane substrates 30
33 voltage signals applied can remain unchanged (i.e. V4=V1, such as be always 0V), it is only necessary to by varying array is applied to
Voltage signal on each public electrode bar 24 of substrate 20, you can make the liquid crystal display device realize wide viewing angle pattern with it is narrow
Switching between field-of-view mode.
As shown in Figure 7 and Figure 8, which further includes drive circuit 60, from drive circuit 60 respectively to color film
The electrode 33 of substrate 30 and each public electrode bar 24 of array base palte 20 apply required voltage signal.In order to color membrane substrates
30 electrode 33 applies voltage signal, can be in the periphery non-display area of display panel 50, by conducting resinl 70 by array base palte
20 are conducted to color membrane substrates 30, and voltage signal is provided to array base palte 20 by drive circuit 50, then by array base palte 20 by leading
Voltage signal is applied respectively to the electrode 33 of color membrane substrates 30 by electric glue 70.
As depicted in figs. 12 a and 12b, which is further also provided with view angle switch button 80, for switching
The different visual angles pattern of the liquid crystal display device.View angle switch button 80 can be mechanical key (such as Figure 12 a), or empty
Intend button (such as Figure 12 b, are set by software control or application program).When user needs to switch width visual angle, can lead to
Cross operate the view angle switch button 80 to liquid crystal display device send view angle switch request, application is finally controlled by drive circuit 60
Voltage signal on the electrode 33 of color membrane substrates 30 and each public electrode bar 24 of array base palte 20, realizes width visual angle
Switching, allow user according to different peep-proof demands, unrestricted choice switching width visual angle, therefore the liquid crystal of the embodiment of the present invention
Display device has stronger operating flexibility and convenience, there is provided integrates the multifunctional solution of entertainment video and privacy secrecy
Crystal device.
[3rd embodiment]
Please join Figure 13 and Figure 14, liquid crystal display device provided in this embodiment and above-mentioned second embodiment difference lies in,
Liquid crystal layer 40 in the present embodiment uses negative liquid crystal molecule.With technological progress, the performance of negative liquid crystal is significantly improved,
Using also extensive all the more.In the present embodiment, as shown in figure 13, in original state, (i.e. liquid crystal display device does not apply any voltage
Situation) under, the negative liquid crystal molecule in liquid crystal layer 40 has larger initial pre-tilt angle, i.e. negativity relative to substrate 20,30
Liquid crystal molecule is in original state relative to substrate 20,30 inclined postures.
Narrow viewing angle pattern：It please join Figure 13, the liquid crystal display device of the present embodiment applies when to the electrode 33 of color membrane substrates 30
First voltage, applies the by first voltage input line 201 to the public electrode article 24 in odd positions on array base palte 20
Two voltages, apply the 3rd by second voltage input line 202 to the public electrode article 24 in even number position on array base palte 20
Voltage, when making the voltage difference between all public electrode bars 24 and electrode 33 be less than a preset value (such as less than 1V), due to all
Voltage difference between the public electrode block 25 and electrode 33 of public electrode bar 24 is smaller, the inclination angle of liquid crystal molecule in liquid crystal layer 40
Degree hardly changes, and is maintained as lateral attitude, liquid crystal display device wide-angle observation light leak is occurred, in strabismus direction
Contrast reduces and visual angle narrows, and the liquid crystal display device realizes that narrow viewing angle is shown at this time.
First voltage is represented with V1, V2 represents second voltage, and V3 represents tertiary voltage, and in the present embodiment, first voltage can
Think constant 0V (i.e. V1=0), second voltage and tertiary voltage can be a certain magnitude of voltage (i.e. V2≤1V, the V3 less than 1V
≤1V).Wherein, second voltage and tertiary voltage can be DC voltage, or alternating voltage.Second voltage and the 3rd electricity
Pressure can be same polarity or opposite polarity.The present embodiment is under narrow viewing angle pattern, due to second voltage, tertiary voltage
Voltage difference between first voltage is smaller, so second voltage and tertiary voltage can be not added with excessively limiting, as long as second
Voltage difference between voltage, tertiary voltage and first voltage is less than preset value, and so influence to image quality is relatively controllable.Tool
Body, second voltage and tertiary voltage can also be 0V, i.e. V1=V2=V3=0, so each public electrode block 25 and electrode
Voltage difference between 33 is zero, to realize preferable narrow viewing angle effect.
Wide viewing angle pattern：It please join Figure 14, the liquid crystal display device of the present embodiment applies when to the electrode 33 of color membrane substrates 30
4th voltage, applies the by first voltage input line 201 to the public electrode article 24 in odd positions on array base palte 20
Five voltages, apply the 6th by second voltage input line 202 to the public electrode article 24 in even number position on array base palte 20
Voltage, when making the voltage difference between all public electrode bars 24 and electrode 33 be more than above-mentioned preset value (such as larger than 1V), by institute
Have and produce larger voltage difference between 24 public electrode block 25 of public electrode bar and electrode 33, in array base palte 20 in liquid crystal cell
Stronger vertical electric field E (as shown in arrow in Figure 14) can be produced between color membrane substrates 30, since negative liquid crystal molecule is in electricity
It will be deflected under field action along perpendicular to the direction of electric field line, therefore negative liquid crystal molecule occurs under vertical electric field E effects
Deflection, reduces the angle of inclination between liquid crystal molecule and substrate 20,30, which wide-angle light leakage phenomena occurs
It can accordingly reduce, be improved in strabismus Direction Contrast and visual angle increases, which finally realizes that wide viewing angle is shown.
4th voltage is represented with V4, V5 represents the 5th voltage, and V6 represents the 6th voltage, and in the present embodiment, the 4th voltage can
Think constant 0V (i.e. V4=0), the 5th voltage and the 6th voltage can be amplitude more than 3V a certain magnitude of voltage (i.e. | V5 | >=
3V,|V6|≥3V).The present embodiment is under wide viewing angle pattern, and the polarity of the 5th voltage and the opposite polarity of the 6th voltage, i.e., one just
One is negative.Specifically, the 6th voltage and the 5th voltage can be with respect to the periodic AC voltage fluctuated centered on the 4th voltage, example
Such as the 4th voltage is the periodicity exchange side that constant 0V, the 6th voltage and the 5th voltage are more than 3V for opposite polarity and amplitude
The driving frequency of ripple, the 6th voltage and the 5th voltage can be the 1/2 of the frame frequency of the liquid crystal display device, i.e., in the 6th voltage and
In a cycle of 5th voltage, which refreshes two frames (frame) picture, but not limited to this.
Moreover, what each pixel unit P that the present embodiment under wide viewing angle pattern, is connected with same data line 22 applied
The public electrode bar for the corresponding coverings of each pixel unit P that data voltage (i.e. Vdata) is connected with the same data line 22
24 voltages applied have identical polarity.That is, the data electricity that each pixel unit P being connected with the first data line 22 applies
Press if negative polarity, then first common electrical covered corresponding to each pixel unit P being connected with the first data line 22
The 5th voltage that pole article 24 applies also is negative polarity；At the same time correspondingly, each pixel unit P being connected with the second data line 22
The data voltage of application is positive polarity, the Article 2 covered corresponding to each pixel unit P being connected with the second data line 22
The 6th voltage that public electrode article 24 applies also is positive polarity.In this way, by the bipolar drive of each public electrode bar 24, make
The pixel electrode 23 obtained in the two neighboring pixel unit of positive and negative opposed polarity is identical with the voltage difference between public electrode block 25,
Improve the problem of two neighboring pixel unit brightness is inconsistent, so that the phenomenon of two neighboring pixel unit brightness unevenness is solved,
And the present embodiment can also realize the display effect of dot inversion with the type of drive of column inversion, lifted while saving power consumption
Display image quality.
The present embodiment from the viewing angle control electrode of color membrane substrates side by the voltage for manipulating width view angle switch by going to battle array
Row substrate-side public electrode block 25 is realized, can also avoid illuminated state light leak, realize ON state brightness under narrow viewing angle pattern with it is wide
Field-of-view mode is the same, lifts penetrance and contrast under narrow viewing angle.
Therefore the present embodiment is no matter under narrow viewing angle pattern or wide viewing angle pattern, to the electrode of color membrane substrates 30
33 voltage signals applied can remain unchanged (i.e. V4=V1, such as be always 0V), it is only necessary to by varying array is applied to
Voltage signal on each public electrode bar 24 of substrate 20, you can make the liquid crystal display device realize wide viewing angle pattern with it is narrow
Switching between field-of-view mode.
On the other structures of the present embodiment, above-mentioned second embodiment is may refer to, details are not described herein.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of array base palte (20), which is equipped with multi-strip scanning line (21), a plurality of data lines (22) and more
A pixel unit (P), it is characterised in that multiple public electrode bars (24), each common electrical are additionally provided with the array base palte (20)
Pole bar (24) extends along data cable (22) direction and the plurality of public electrode bar (24) is mutual on scan line (21) direction
Every arrangement, each public electrode bar (24) is concatenated in a manner of Z-shaped arrangement by multiple public electrode blocks (25) and is formed, each public
Electrode block (25) corresponds to a pixel unit (P), and each public electrode of odd positions is located on scan line (21) direction
Bar (24) is linked together by first voltage input line (201), is put on scan line (21) direction positioned at even bit each
Public electrode bar (24) is linked together by second voltage input line (202).
2. array base palte (20) according to claim 1, it is characterised in that be connected with same data line (22) each
Pixel unit (P) Z-shape arranged distribution is in the one public electrode bar (24) in data cable (22) both sides and corresponding covering.
3. array base palte (20) according to claim 1, it is characterised in that each public electrode block (25) is planar knot
Structure, each pixel unit (P) is interior to be additionally provided with pixel electrode (23), and each pixel electrode (23) is narrow slit structure.
4. a kind of liquid crystal display device, including the color membrane substrates that array base palte (20) and the array base palte (20) are oppositely arranged
(30) and the liquid crystal layer (40) between the array base palte (20) and the color membrane substrates (30), it is characterised in that the array
Substrate (20) is claims 1 to 3 any one of them array base palte (20), which is equipped with electrode (33).
A kind of 5. driving method for being used to drive liquid crystal display device as claimed in claim 4, it is characterised in that the driving side
Method includes：
Under the first field-of-view mode, apply first voltage to the electrode (33) of the color membrane substrates (30), pass through the first voltage
Input line (201) applies second voltage to the public electrode bar (24) in odd positions on the array base palte (20), by this
Second voltage input line (202) applies the 3rd electricity to the public electrode article (24) in even number position on the array base palte (20)
Pressure, makes the voltage difference between all public electrode bars (24) and the electrode (33) be less than a preset value；
Under second of field-of-view mode, apply the 4th voltage to the electrode (33) of the color membrane substrates (30), pass through the first voltage
Input line (201) applies the 5th voltage to the public electrode article (24) in odd positions on the array base palte (20), by this
Second voltage input line (202) applies the 6th electricity to the public electrode article (24) in even number position on the array base palte (20)
Pressure, makes the voltage difference between all public electrode bars (24) and the electrode (33) be more than the preset value, and the pole of the 5th voltage
Property with the opposite polarity of the 6th voltage, the data that each pixel unit (P) being connected with same data line (22) applies are electric
The electricity for pressing the public electrode bar (24) of the corresponding covering of each pixel unit (P) being connected with the same data line (22) to apply
Pressing element has identical polarity.
6. driving method according to claim 5, it is characterised in that the 4th voltage and the first voltage are identical electricity
Pressure.
7. driving method according to claim 6, it is characterised in that the 4th voltage and the first voltage are 0V.
8. driving method according to claim 5, it is characterised in that the 4th voltage, the tertiary voltage, the second voltage
It is identical voltage with the first voltage.
9. driving method according to claim 5, it is characterised in that the 6th voltage and the 5th voltage be it is opposite this
The periodic AC voltage fluctuated centered on four voltages.
10. driving method according to claim 5, it is characterised in that the liquid crystal layer (40) uses positive liquid crystal molecules, should
The first field-of-view mode is wide viewing angle pattern, which is narrow viewing angle pattern；Or, the liquid crystal layer (40) is using negative
Property liquid crystal molecule, which is narrow viewing angle pattern, which is wide viewing angle pattern.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873417A (en) * | 2018-08-28 | 2018-11-23 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| CN109166549A (en) * | 2018-10-10 | 2019-01-08 | 惠科股份有限公司 | The driving method and display device of display device |
| CN109243394A (en) * | 2018-10-30 | 2019-01-18 | 昆山龙腾光电有限公司 | Narrow viewing angle display methods |
| CN112382249A (en) * | 2020-11-13 | 2021-02-19 | 昆山龙腾光电股份有限公司 | Gate drive unit, gate drive circuit and display device |
| CN115016188A (en) * | 2022-06-30 | 2022-09-06 | 武汉华星光电半导体显示技术有限公司 | Display device and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166279A (en) * | 2014-07-17 | 2014-11-26 | 京东方科技集团股份有限公司 | Displaying device and driving method thereof |
| 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 |
| CN105739195A (en) * | 2016-04-13 | 2016-07-06 | 昆山龙腾光电有限公司 | Liquid crystal display device and drive method thereof |
| CN107193164A (en) * | 2017-07-03 | 2017-09-22 | 昆山龙腾光电有限公司 | Array base palte and liquid crystal display device and driving method |
-
2017
- 2017-11-20 CN CN201711158700.3A patent/CN107942590B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104166279A (en) * | 2014-07-17 | 2014-11-26 | 京东方科技集团股份有限公司 | Displaying device and driving method thereof |
| CN105739195A (en) * | 2016-04-13 | 2016-07-06 | 昆山龙腾光电有限公司 | Liquid crystal display device and drive method thereof |
| CN107193164A (en) * | 2017-07-03 | 2017-09-22 | 昆山龙腾光电有限公司 | Array base palte and liquid crystal display device and driving method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873417A (en) * | 2018-08-28 | 2018-11-23 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| CN108873417B (en) * | 2018-08-28 | 2021-06-22 | 昆山龙腾光电股份有限公司 | Driving method of liquid crystal display device |
| CN109166549A (en) * | 2018-10-10 | 2019-01-08 | 惠科股份有限公司 | The driving method and display device of display device |
| CN109166549B (en) * | 2018-10-10 | 2021-03-26 | 惠科股份有限公司 | Display device driving method and display device |
| CN109243394A (en) * | 2018-10-30 | 2019-01-18 | 昆山龙腾光电有限公司 | Narrow viewing angle display methods |
| CN112382249A (en) * | 2020-11-13 | 2021-02-19 | 昆山龙腾光电股份有限公司 | Gate drive unit, gate drive circuit and display device |
| CN115016188A (en) * | 2022-06-30 | 2022-09-06 | 武汉华星光电半导体显示技术有限公司 | Display device and vehicle |
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