CN106646936A - View-angle-switchable liquid crystal display device and driving method - Google Patents
View-angle-switchable liquid crystal display device and driving method Download PDFInfo
- Publication number
- CN106646936A CN106646936A CN201610948902.7A CN201610948902A CN106646936A CN 106646936 A CN106646936 A CN 106646936A CN 201610948902 A CN201610948902 A CN 201610948902A CN 106646936 A CN106646936 A CN 106646936A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- viewing angle
- control electrode
- angle control
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 85
- 230000000737 periodic effect Effects 0.000 claims description 34
- 230000000007 visual effect Effects 0.000 claims description 31
- 239000011159 matrix material Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 description 20
- 230000008859 change Effects 0.000 description 10
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000010409 thin film Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000005685 electric field effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
Provided are a view-angle-switchable liquid crystal display device and a driving method. The liquid crystal display device comprises a display panel, the display panel comprises a first substrate, a second substrate opposite to the first substrate, and a liquid crystal layer located between the first substrate and the second substrate. A view angle control electrode is arranged on the first substrate and used for controlling the display panel to be switched between a wide view angle mode and a narrow view angle mode, a plurality of sub-pixels are defined on the second substrate through scanning lines and data lines, and a pixel electrode is arranged in each sub-pixel of the second substrate. A common electrode is further arranged on the second substrate, the view angle control electrode comprises a plurality of insulated and separated view angle control electrode strips, and each view angle control electrode strip extends in the direction parallel to the scanning lines and corresponds to a row of sub-pixels. According to the liquid crystal display device and the driving method, the problems about residual shadows and in-face Mura can be effectively relieved, so that the image quality is improved.
Description
Technical field
The present invention relates to the technical field of liquid crystal display, the switchable liquid crystal indicator in more particularly to a kind of visual angle and
Driving method.
Background technology
Liquid crystal indicator (liquid crystal dilay, LCD) has good image quality, small volume, lightweight, low driving
The relatively low advantage of voltage, low-power consumption, radiationless and manufacturing cost, occupies an leading position in flat display field.
Now liquid crystal indicator gradually develops towards wide viewing angle direction, such as using in-plane-switching mode (IPS) or edge
The liquid crystal indicator of field switch pattern (FFS) can realize wider visual angle.However, today's society people increasingly focus on
The privacy of oneself is protected, there are many things and is not liked to take out and share with people.In public, always wish that oneself is seeing the mobile phone
Or content is secrecy when browsing computer.Therefore, the display of single visual angle pattern can not meet user
Demand.In addition to the demand of wide viewing angle, under the occasion for needing peep-proof, it is also desirable to display device can be switched or be adjusted
To narrow viewing angle pattern.
In order to realize the width view angle switch of liquid crystal indicator, there is a kind of mode to be using colored filter substrate side
Viewing angle control electrode give liquid crystal molecule apply a vertical electric field, to realize narrow viewing angle pattern.Please join Fig. 1 and Fig. 2, liquid crystal
Showing device includes first substrate 11, second substrate 12 and the liquid crystal layer 13 between first substrate 11 and second substrate 12, the
One substrate 11 is colored filter substrate, and second substrate 12 is thin-film transistor array base-plate, and wherein first substrate 11 is provided with
Viewing angle control electrode 111, second substrate 12 is provided with pixel electrode (not shown) and public electrode (not shown).
As shown in figure 1, when needing wide viewing angle to show, the viewing angle control electrode 111 of first substrate 11 applies and common electrical
Pole identical voltage, makes the potential difference between the public electrode of viewing angle control electrode 111 and second substrate 12 be zero, liquid crystal display
Device realizes that wide viewing angle shows under the face internal electric field between pixel electrode and public electrode.
As shown in Fig. 2 when needing narrow viewing angle to show, the viewing angle control electrode 111 of first substrate 11 applies and common electrical
, there is certain potential difference between the public electrode for making viewing angle control electrode 111 and second substrate 12, now in extremely different voltage
A vertical direction electric field (as shown in arrow E in figure) is produced between first substrate 11 and second substrate 12, in liquid crystal layer 13
Face internal electric field of the liquid crystal molecule between pixel electrode and public electrode under while horizontally rotate, can be because vertical direction electricity
And incline and tilt, this characteristic of liquid crystal can make to occur when black state wide-angle observation light leak, and make liquid crystal indicator exist
Big view directions contrast is reduced, and finally realizes that narrow viewing angle shows.
As shown in figure 3, when narrow viewing angle shows, added voltage is generally periodically handed on viewing angle control electrode 111
Stream voltage, on public electrode added voltage be direct current common electric voltage (i.e. DC Vcom), the alternating current of viewing angle control electrode 111
Pressure fluctuates up and down around the direct current common electric voltage of public electrode, the alternating current being applied to shown in figure on viewing angle control electrode 111
Press as sine wave and its frequency is identical with the frame frequency of liquid crystal indicator (i.e. frame frequency), that is, liquid crystal display is filled
Put it is every refreshing 1 frame (frame) picture, on viewing angle control electrode 111 added alternating voltage equally refresh a cycle and with every frame
The refreshing of picture keeps synchronous.
, when narrow viewing angle shows, the voltage of pixel electrode can be by viewing angle control electrode in each sub-pixel for liquid crystal indicator
111 alternating voltage coupling, causes the voltage of pixel electrode voltage after charging to be kept for the stage change, with △ Vp_cf
Represent the alternating voltage of viewing angle control electrode 111 to the voltage deviation caused by pixel electrode coupling.Due to viewing angle control electrode
Added voltage is alternating voltage on 111, and not in the same time, the voltage swing on viewing angle control electrode 111 is different, to difference
The pixel electrode voltage deviation △ Vp_cf that capable sub-pixel coupling causes is also different, i.e. different positions of the △ Vp_cf in panel
It is different to put.So that added alternating voltage amplitude on viewing angle control electrode 111 is +/- 5V as an example, due to viewing angle control electrode
The fluctuation range of △ Vp_cf diverse locations in face that 111 alternating voltage change causes is 0V～0.5V or so.And in face not
Same △ Vp_cf are to cause ghost serious and show the reason for uneven (Mura) occurs.
The content of the invention
It is an object of the invention to provide a kind of switchable liquid crystal indicator in visual angle and driving method, to realize not
With the width view angle switch of occasion, and improve uneven (Mura) problem of display in ghost dough-making powder.
The present invention provides a kind of visual angle switchable liquid crystal indicator, including display floater, and the display floater includes the
The second substrate that one substrate and the first substrate are oppositely arranged and the liquid crystal between the first substrate and the second substrate
Layer, the first substrate is provided with viewing angle control electrode, and the viewing angle control electrode is used to control the display floater in wide viewing angle pattern
Switch between narrow viewing angle pattern, limited by scan line and data wire on the second substrate and form multiple sub-pixels, second base
Plate is provided with pixel electrode in each sub-pixel, and on the second substrate public electrode is additionally provided with, and the viewing angle control electrode includes phase
Multiple viewing angle control electrode strips that mutually insulation gap is opened, each viewing angle control electrode strip extends along the direction parallel to scan line
And it is corresponding with a line sub-pixel.
Further, interval forms slit between adjacent viewing angle control electrode strip, and the slit is parallel with scan line and phase
Correspondence.
Further, black matrix is additionally provided with the first substrate, the slit is corresponding with the black matrix and the slit is less than
The live width of the black matrix.
Further, the quantity of the plurality of viewing angle control electrode strip is identical with the line number of sub-pixel, makes every a line sub-pixel
Covered by a corresponding viewing angle control electrode strip.
Further, the liquid crystal indicator also includes an at least driving chip, the plurality of viewing angle control electrode strip difference
Electrically connected with an at least driving chip by cabling.
Further, the liquid crystal indicator is provided with view angle switch button, for sending out to the liquid crystal indicator for user
Go out view angle switch signal.
The present invention also provides a kind of driving method of liquid crystal indicator, for driving the switchable liquid crystal in above-mentioned visual angle
Display device, the driving method includes：
Apply the periodic alternating voltage of unification respectively to multiple viewing angle control electrode strips of the viewing angle control electrode；
When a scan line is opened, it is connected with the scan line by each data wire outputting data signals pair
A line sub-pixel is charged, and the voltage signal of that the viewing angle control electrode strip corresponding with the row sub-pixel is switched
It is identical with the direct current common electric voltage of the public electrode；
When the scan line is closed, by the electricity of that the viewing angle control electrode strip corresponding with the row sub-pixel
Pressure signal returns to original periodic alternating voltage.
Further, the liquid crystal molecule in the liquid crystal layer is positivity liquid crystal molecule, and multiple to the viewing angle control electrode regard
When angle coordination electrode bar applies respectively the periodic alternating voltage, the display floater is in narrow viewing angle pattern.
Further, the liquid crystal molecule in the liquid crystal layer is negative liquid crystal molecule, and multiple to the viewing angle control electrode regard
When angle coordination electrode bar applies respectively the periodic alternating voltage, the display floater is in wide viewing angle pattern.
Further, the periodic alternating voltage fluctuates up and down around the direct current common electric voltage.
The switchable liquid crystal indicator in visual angle provided in an embodiment of the present invention and driving method, by by viewing angle control electricity
Multiple viewing angle control electrode strips that pole is set to pattern structure and is spaced apart including mutually insulated, make each viewing angle control electrode
Bar can distinguish applied voltage signal.When a scan line is opened, by each data wire pair and the scan line phase
A line sub-pixel even is charged, and by the voltage signal of that the viewing angle control electrode strip corresponding with the row sub-pixel
Switch to it is identical with the direct current common electric voltage of public electrode, can make every row sub-pixel charge when, corresponding viewing angle control
Voltage on electrode strip is equal, as DC Vcom.So while the alternating voltage of each viewing angle control electrode strip is to pixel electricity
The change in voltage that pole coupling causes is consistent in face, can be effectively improved Mura problems in ghost and face, obtains image quality
To lifting.The light switching that the present embodiment can be realized between wide viewing angle and narrow viewing angle in different occasions, with stronger operation spirit
Activity and convenience, reach and integrate the Multifunctional liquid crystal display device that entertainment video maintains secrecy with privacy.
Description of the drawings
Fig. 1 is structural representation of the one of which liquid crystal indicator in wide viewing angle.
Fig. 2 is structural representation of the liquid crystal indicator in narrow viewing angle in Fig. 1.
Fig. 3 is the voltage waveform view being applied in narrow viewing angle in Fig. 2 on viewing angle control electrode.
Fig. 4 is the electrical block diagram of liquid crystal indicator in first embodiment of the invention.
Fig. 5 is schematic cross-section of the liquid crystal indicator along V-V lines in Fig. 4.
Fig. 6 is structural representation of the liquid crystal indicator in narrow viewing angle in Fig. 5.
Fig. 7 is the planar structure schematic diagram of the viewing angle control electrode of liquid crystal indicator in Fig. 4.
Fig. 8 is the alternating voltage schematic diagram that liquid crystal indicator is applied on viewing angle control electrode strip in Fig. 4.
Fig. 9 a to Fig. 9 b are the planar structure schematic diagram of liquid crystal indicator in Fig. 4.
Figure 10 is the work schedule schematic diagram of liquid crystal indicator in Fig. 4.
Figure 11 is schematic cross-section of the liquid crystal indicator in narrow viewing angle in second embodiment of the invention.
Figure 12 is schematic cross-section of the liquid crystal indicator in wide viewing angle in Figure 11.
Specific 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
Drawings and Examples, the specific embodiment, structure, feature and its effect to the present invention, describe in detail as after.
[first embodiment]
Fig. 4 is the electrical block diagram of liquid crystal indicator in first embodiment of the invention, and Fig. 5 is liquid crystal in Fig. 4
Showing device along V-V lines schematic cross-section, Fig. 6 be Fig. 5 in structural representation of the liquid crystal indicator in narrow viewing angle, Fig. 7
For the planar structure schematic diagram of the viewing angle control electrode of liquid crystal indicator in Fig. 4, Fig. 4 to Fig. 7 please be join, the liquid in the present embodiment
Crystal device includes display floater 20, the display floater 20 include that first substrate 21 and first substrate 21 be oppositely arranged the
Two substrates 22 and the liquid crystal layer between first substrate 21 and second substrate 22 23.Wherein, first substrate 21 is colorized optical filtering
Plate base, second substrate 22 is thin-film transistor array base-plate.
Generally, when user watches the screen of liquid crystal indicator from different visual angles, the contrast meeting of image
Reduce with the increase at visual angle.The liquid crystal indicator of traditional twisted nematic (Twisted Nematic, TN), it is public
Electrode is respectively formed on upper and lower two different substrates with pixel electrode, and liquid crystal molecule is in a plane vertical with substrate
Rotation.However, the visual angle of TN type liquid crystal indicators is narrow.To realize wide viewing angle, changed using the in-plane of horizontal component of electric field
Type (In-Plane Switching, IPS) and fringe field switch type (the Fringe Field using fringe field
Switching, FFS) liquid crystal indicator just becoming the market mainstream.It is public for IPS types or the liquid crystal indicator of FFS types
Common electrode and pixel electrode are formed on same substrate (i.e. thin-film transistor array base-plate), and liquid crystal molecule is with substrate substantially
Rotate so as to obtain wider array of visual angle in parallel plane.
The liquid crystal indicator that the present embodiment is provided is applied to plane inner switching type (IPS), fringe field switch type (FFS)
The liquid crystal indicator of isotype, public electrode and pixel electrode are both formed in same substrate (i.e. thin-film transistor array base-plate)
On, when applying the electric field of display between public electrode and pixel electrode, liquid crystal molecule is in the plane almost parallel with substrate
It is interior to rotate to obtain wider visual angle.In the present embodiment, the liquid crystal indicator is entered by taking fringe field switch type (FFS) as an example
Row explanation.
First substrate 21 is to be provided with color blocking layer 212, black matrix (BM) 213, viewing angle control towards the side of liquid crystal layer 23 electric
Pole 214 and flatness layer 215.Color blocking layer 212 and black matrix 213 are formed in first substrate 21 towards the surface of the side of liquid crystal layer 23
On, color blocking layer 212 for example includes red (R), green (G), the color blocking material of blue (B).Viewing angle control electrode 214 is formed in color
In resistance layer 212 and black matrix 213, switch between wide viewing angle pattern and narrow viewing angle pattern for controlling display floater 20.Visual angle
Coordination electrode 214 includes multiple viewing angle control electrode strip 214a that mutually insulated is spaced apart.Flatness layer 215 is covered in viewing angle control
On electrode 214.It should be appreciated that the film layer structure and order not limited to this on first substrate 21, can be adjusted as needed.
Second substrate 22 is being provided with scan line 222, data wire 223, thin film transistor (TFT) (TFT) towards the side of liquid crystal layer 23
224th, the first insulating barrier 225, public electrode 226 (common electrode), the second insulating barrier 227 and pixel electrode 228
(pixel electrode).It should be appreciated that only illustrating and the present invention on first substrate 21 and second substrate 22 in the present embodiment
Related film layer structure, is omitted to incoherent film layer structure.
As shown in figure 4, intersect to limit by multi-strip scanning line 222 and a plurality of data lines 223 on second substrate 22 forming multiple
Sub-pixel (sub-pixel), the plurality of sub-pixel is arranged in array into multirow and multiple row.Sub-pixel is, for example, red (R), green
(G) or blue (B) sub-pixel, multiple adjacent sub-pixels constitute a display pixels (pixel), and such as one display pixel can
Including red (R), green (G) and blue (B) three sub-pixels.Pixel electrode 228 and film crystal are provided with each sub-pixel
Pipe (TFT) 224, thin film transistor (TFT) 224 is located near scan line 222 and the crossover location of data wire 223.Each thin film transistor (TFT)
224 include grid, source electrode and drain electrode (figure is not marked), and wherein grid electrically connects corresponding scan line 222, and source electrode electrical connection is corresponding
Data wire 223, the corresponding pixel electrode 228 of drain electrode electrical connection.
In the present embodiment, pixel electrode 228 is located at the top of public electrode 226, i.e., pixel electrode 228 is compared to public electrode
226 closer to liquid crystal layer 23, and the second insulating barrier 227 is interval between pixel electrode 228 and public electrode 226, but is not limited to
This.In other embodiments, pixel electrode 228 can also be located at the lower section of public electrode 226.In addition, working as the liquid crystal indicator
During using plane inner switching type (IPS) pattern, public electrode 226 and pixel electrode 228 may be located in same layer, now public
Common electrode 226 and pixel electrode 228 can be respectively prepared the structure with multiple electrodes bar and be mutually inserted cooperation.
Viewing angle control electrode 214, public electrode 226 can adopt ITO (tin indium oxide), IZO (oxygen with pixel electrode 228
Change indium zinc) etc. electrically conducting transparent material make.
Viewing angle control electrode 214 on first substrate 21 is the pattern structure of horizontal stripe shape, and viewing angle control electrode 214 includes
Mutually insulated multiple viewing angle control electrode strip 214a spaced apart, each viewing angle control electrode strip 214a is along parallel to scan line
222 direction extends and corresponding with a line sub-pixel.In the present embodiment, the quantity of the plurality of viewing angle control electrode strip 214a with
The line number of sub-pixel is identical in panel, every a line sub-pixel is covered (such as by a corresponding viewing angle control electrode strip 214a
Shown in Fig. 4).The length of each viewing angle control electrode strip 214a can be across whole display floater 20, i.e., more than display floater 20
Effective display area (i.e. Active Area) width.
Interval forms slit 214b between adjacent viewing angle control electrode strip 214a, and slit 214b is parallel with scan line 222
And it is corresponding.And, slit 214b is corresponding with black matrix 213 and slit 214b is less than the live width of black matrix 213, makes each regarding
The both sides of angle coordination electrode bar 214a are covered in (as shown in Figure 5) in black matrix 213.
As shown in fig. 7, the liquid crystal indicator further comprises an at least driving chip 30 (only illustrates a drive in figure
Dynamic chip 30, but not limited to this, the quantity of driving chip 30 can be multiple), the plurality of viewing angle control electrode strip 214a difference
Electrically connected with an at least driving chip 30 by cabling 31.Due to mutually insulated between these viewing angle controls electrode strip 214a,
Therefore applied voltage signal can be distinguished to these viewing angle control electrode strips 214a by an at least driving chip 30.
Liquid crystal molecule is generally divided into positivity liquid crystal molecule and negative liquid crystal molecule.Liquid in the present embodiment, in liquid crystal layer 23
Brilliant molecule is positivity liquid crystal molecule, and positivity liquid crystal molecule possesses the fast advantage of response.In original state, (i.e. display floater 20 is not applied
Plus the situation of any voltage) under, the positivity liquid crystal molecule in liquid crystal layer 23 is presented the lie low attitude parallel with substrate 21,22, just
The long axis direction of property liquid crystal molecule is substantially parallel with the surface of substrate 21,22 (such as Fig. 5).In actual applications, in liquid crystal layer 23
Positivity liquid crystal molecule and substrate 21,22 between can have the initial tilt angle of very little, the scope of the initial tilt angle can be
More than or equal to 0 degree and less than or equal to 5 degree, i.e.,：0°≦θ≦5.
Viewing angle control electrode 214 is regarded for controlling the display floater 20 between wide viewing angle pattern and narrow viewing angle pattern
Angle switches.As shown in Figure 5 and Figure 6, by applied voltage on each viewing angle control electrode strip 214a, controlling at each visual angle
Voltage difference (bias) is produced between electrode strip 214a processed and public electrode 226, make the display floater 20 wide viewing angle pattern with
Switch between narrow viewing angle pattern.
Please join Fig. 5, when the direct current public voltage signal of applying and public electrode 226 on each viewing angle control electrode strip 214a
During (DC Vcom) identical d. c. voltage signal, each viewing angle control electrode strip 214a is identical with the current potential of public electrode 226,
Without bias between each viewing angle control electrode strip 214a and public electrode 226, without vertical electric field between two substrates 21,22
Formed, the angle of inclination of the liquid crystal molecule in liquid crystal layer 23 hardly changes, and is still the attitude that lies low, by positioned at second substrate
The face internal electric field formed between pixel electrode 228 on 22 and public electrode 226 drives liquid crystal molecule parallel with substrate 21,22
Plane in rotation, liquid crystal molecule is traditional face internal electric field type of drive, realizes that width is regarded under stronger face internal electric field effect
Angle mould formula.
Please join Fig. 6, when to each viewing angle control electrode strip 214a apply respectively unification periodic alternating voltage (such as with
As a example by the square wave of Fig. 8) between each viewing angle control electrode strip 214a and public electrode 226 produce bias when, two substrates
21st, vertical electric field (as shown in arrow E in figure) is formed between 22, because positivity liquid crystal molecule will be along parallel under electric field action
Rotate in the direction of electric field line, positivity liquid crystal molecule will deflect under the vertical electric field effect, make liquid crystal molecule and substrate
21st, the angle of inclination increase between 22.Because liquid crystal molecule there occurs deflection so that in the screen stravismus side of the display floater 20
Upwards, the light through liquid crystal molecule is mismatched due to Phase delay with upper down polaroid (not shown), occurs in that light leakage phenomena,
When causing to watch screen from the stravismus direction of the display floater 20, the contrast on screen is reduced and affects viewing effect, is made
Visual angle reduces, so as to realize narrow viewing angle pattern.
Fig. 9 a to Fig. 9 b are the planar structure schematic diagram of liquid crystal indicator in Fig. 4, please join Fig. 9 a to Fig. 9 b, the liquid crystal
Showing device is provided with view angle switch button 50, for sending view angle switch signal to the liquid crystal indicator for user.View angle switch
Button 50 can be physical button (as illustrated in fig. 9), alternatively software control or application program (APP) come realize switch work(
(as shown in figure 9b, visual angle size can be arranged by slider bar).Under normal circumstances, on each viewing angle control electrode strip 214a
Apply direct current public voltage signal (DC Vcom) the identical d. c. voltage signal with public electrode 226, each viewing angle control electricity
Without bias between pole bar 214a and public electrode 226, formed without vertical electric field between two substrates 21,22, the liquid crystal
Showing device is under wide viewing angle pattern.When having peep-proof demand and need to switch to narrow viewing angle pattern, user can be by operation
The view angle switch button 50 sends view angle switch signal, starts to apply periodically exchange to each viewing angle control electrode strip 214a
Voltage, produces bias between each viewing angle control electrode strip 214a and public electrode 226, is formed between two substrates 21,22
Vertical electric field, so as to switch to narrow viewing angle pattern.When not needing narrow viewing angle to show, user can be by operating again the visual angle
Switching key 50, so as to be back to wide viewing angle pattern.So as to the switchable liquid crystal display dress in visual angle provided in an embodiment of the present invention
Put with stronger operating flexibility and convenience.
Under narrow viewing angle pattern, putting on the voltage signal on each viewing angle control electrode strip 214a needs to be periodic
Alternating voltage, the polarity of voltage for making each viewing angle control electrode strip 214a alternately overturns relative to public electrode 226, two such
The vertical electric field direction formed between substrate 21,22 changes back and forth, and liquid crystal can be avoided polarization occur.
In the present embodiment, under narrow viewing angle pattern, the periodic friendship on each viewing angle control electrode strip 214a is put on
Stream voltage can be square wave (as shown in Figure 8), but not limited to this, the periodic alternating voltage waveform can also be trapezoidal wave,
Sine wave, triangular wave or sawtooth waveforms etc., in figure only by taking square wave as an example.The periodic alternating voltage is around output to common electrical
Direct current common electric voltage (DC Vcom) on pole 226 fluctuates up and down.In this respect it is to be noted that either in width in the present embodiment
Under field-of-view mode or narrow viewing angle pattern, the voltage applied on public electrode 226 is direct current common electric voltage (DC Vcom).
In the present embodiment, the frequency and display floater 20 of alternating voltage on each viewing angle control electrode strip 214a is put on
Frame frequency (i.e. frame frequency) it is identical (such as being 60Hz), that is, display floater 20 often refresh 1 frame (frame) picture
Face, the alternating voltage on each viewing angle control electrode strip 214a equally refreshes a cycle and keeps same with the refreshing of every frame picture
Step.In other embodiments, the frequency of the alternating voltage can also be different from the frame frequency of display floater 20.
Under narrow viewing angle pattern, because the voltage signal being applied on each viewing angle control electrode strip 214a is alternating current
Pressure, as the voltage pulsation on each viewing angle control electrode strip 214a changes, causes the sub-pixel of different rows when charging, right
The viewing angle control electrode strip 214a voltages answered are different, and then cause the voltage of pixel electrode 228 in the sub-pixel of different rows by coupling
The degree of conjunction is different, causes image retention and zones of different picture brightness difference (i.e. mura) problem.To improve in ghost and face
Mura levels, in the present embodiment, by the viewing angle control electrode 214 for being used to control view angle switch on first substrate 21 phase are patterned as
Multiple viewing angle control electrode strip 214a that mutually insulation gap is opened, each viewing angle control electrode strip 214a is along parallel to scan line
222 direction extends and corresponding with a line sub-pixel respectively, therefore, each viewing angle control electrode strip 214a can apply respectively
Voltage signal.
In the present embodiment, under narrow viewing angle pattern, display floater 20 can be driven in such a way：
Unified periodic alternating current is exported respectively to multiple viewing angle control electrode strip 214a of viewing angle control electrode 214
Pressure, the periodic alternating voltage can be square wave, trapezoidal wave, sine wave, triangular wave or sawtooth waveforms etc.；
When a scan line 222 is opened, by the outputting data signals pair of each data wire 223 and the scan line
222 connected a line sub-pixels are charged, and by that viewing angle control electrode strip 214a corresponding with the row sub-pixel
Voltage signal switch to it is identical with the direct current common electric voltage of public electrode 226 (DC Vcom)；
When the scan line 222 is closed, by that viewing angle control electrode strip corresponding with the row sub-pixel
The voltage signal of 214a returns to original periodic alternating voltage.
According to above-mentioned driving method, can make every row sub-pixel charge when, corresponding viewing angle control electrode strip
Voltage on 214a is equal, i.e. DC Vcom.So while the alternating voltage on viewing angle control electrode strip 214a is to pixel electrode
The change in voltage △ Vp_cf that 228 couplings cause is consistent in face, can be effectively improved Mura in ghost level and face and ask
Topic, makes image quality get a promotion.
In the present embodiment, the liquid crystal molecule in liquid crystal layer 23 is positivity liquid crystal molecule, to many of viewing angle control electrode 214
When individual viewing angle control electrode strip 214a exports periodic alternating voltage respectively, the display floater 20 is in narrow viewing angle pattern.
As shown in figure 8, surrounding common electrical to the periodic AC voltage that multiple viewing angle control electrode strip 214a are exported respectively
The direct current common electric voltage (DC Vcom) of pole 226 fluctuates up and down, and in figure only by taking square wave as an example, it has high potential VHAnd electronegative potential
VL, but not limited to this, the waveform of the periodic alternating voltage can also be trapezoidal wave, sine wave, triangular wave or sawtooth waveforms
Deng.
In addition, blank time section (blanking time) Tx is also provided between two adjacent frame pictures, when blank
Between section Tx be transit time section in consecutive frame picture, the viewing angle control electrode 214 after each end cycle on first substrate 21
Voltage waveform switch in blank time section Tx, in blank time section Tx to viewing angle control electrode 214 output voltage
Can not require with waveform.
Please join Figure 10, below in conjunction with the periodic square wave shown in Fig. 8, with the liquid crystal for there was only 4 scan lines (G1～G4)
Above-mentioned driving method is elaborated again as a example by showing device, but the present invention is applied to any periodic AC voltage waveform,
It is also applied for the liquid crystal indicator of any resolution.
Here, 4 scan lines (G1～G4) have been connected respectively four row sub-pixels, it is assumed that corresponding with four row sub-pixels
Four viewing angle control electrode strip 214a be respectively ITO1, ITO2, ITO3, ITO4.
First, export respectively to four viewing angle controls electrode strip ITO1, ITO2, ITO3, ITO4 of viewing angle control electrode 214
Unified periodic alternating voltage, i.e., the square wave shown in Fig. 8；
When scan line is progressively scanned from G1 to G4, by each data wire outputting data signals to be scanned
(i.e. voltage is changed into VGH) the connected a line sub-pixel of scan line be charged, and by that corresponding with the row sub-pixel
The voltage switching of viewing angle control electrode strip is to direct current common electric voltage (that is, DC Vcom), the viewing angle control electrode strip of remaining position
Still set periodic alternating voltage (square wave i.e. shown in Fig. 8) is applied；
When every scan line is pent, by that the viewing angle control electrode strip corresponding with the row sub-pixel
Voltage returns to original periodic alternating voltage (square wave i.e. shown in Fig. 8).
Specifically, when scan line G1 is scanned, it is charged to the first row sub-pixel being connected with scan line G1,
And by the voltage switching of the first piece viewing angle control electrode strip ITO1 corresponding with the first row sub-pixel to direct current common electric voltage (i.e.
DC Vcom)；When line G1 to be scanned is pent, by the first piece viewing angle control electrode strip corresponding with the first row sub-pixel
The voltage of ITO1 returns to original periodic alternating voltage (square wave i.e. shown in Fig. 8).
When scan line G2 is scanned, it is charged to the second row sub-pixel being connected with scan line G2, and will be with
The voltage switching of second corresponding viewing angle control electrode strip ITO2 of the second row sub-pixel is to direct current common electric voltage (i.e. DC
Vcom)；When line G2 to be scanned is pent, by the second piece viewing angle control electrode strip ITO2 corresponding with the second row sub-pixel
Voltage return to original periodic alternating voltage (square wave i.e. shown in Fig. 8).
When scan line G3 is scanned, it is charged to the third line sub-pixel being connected with scan line G3, and will be with
The voltage switching of the 3rd corresponding viewing angle control electrode strip ITO3 of the third line sub-pixel is to direct current common electric voltage (i.e. DC
Vcom)；When line G3 to be scanned is pent, by the three piece viewing angle control electrode strip ITO3 corresponding with the third line sub-pixel
Voltage return to original periodic alternating voltage (square wave i.e. shown in Fig. 8).
When scan line G4 is scanned, it is charged to the fourth line sub-pixel being connected with scan line G4, and will be with
The voltage switching of the 4th corresponding viewing angle control electrode strip ITO4 of fourth line sub-pixel is to direct current common electric voltage (i.e. DC
Vcom)；When line G4 to be scanned is pent, by the four piece viewing angle control electrode strip ITO4 corresponding with fourth line sub-pixel
Voltage return to original periodic alternating voltage (square wave i.e. shown in Fig. 8).
So, pixel electrode 228 often in row sub-pixel charge when, corresponding viewing angle control on first substrate 21
The voltage equal (as DC Vcom) of electrode strip 214a, so while the exchange being applied on viewing angle control electrode strip 214a
What change in voltage was brought be in face to the change in voltage △ Vp_cf that causes of coupling of pixel electrode 228 it is consistent, it is residual so as to improve
Mura levels in shadow and face.
[second embodiment]
Figure 11 is schematic cross-section of the liquid crystal indicator in wide viewing angle in second embodiment of the invention, and Figure 12 is Figure 11
Schematic cross-section of the middle liquid crystal indicator in narrow viewing angle, please join Figure 11 and Figure 12, the present embodiment and above-mentioned first embodiment
Difference be, the liquid crystal layer 23 in the present embodiment adopt negative liquid crystal molecule.In original state, (i.e. display floater 20 does not apply
The situation of any voltage) under, the negative liquid crystal molecule in liquid crystal layer 23 has initial tilt angle relative to substrate 21,22, that is, bear
Property liquid crystal molecule is relative to substrate 21,22 inclined attitudes (such as Figure 11).
Please join Figure 11, when applying is believed with the direct current common electric voltage of public electrode 226 on each viewing angle control electrode strip 214a
During number (DC Vcom) identical d. c. voltage signal, the current potential phase of each viewing angle control electrode strip 214a and public electrode 226
Together, without bias between each viewing angle control electrode strip 214a and public electrode 226, without vertical between two substrates 21,22
Electric field is formed, due to the tilt angle of liquid crystal molecule in liquid crystal layer 23 it is larger, therefore the display floater 20 screen look side ways direction
On, the light through liquid crystal molecule is mismatched due to Phase delay with upper down polaroid (not shown), light leakage phenomena occurs, is caused
When watching screen from the stravismus direction of the display floater 20, the contrast of screen is reduced and affects viewing effect, subtracts visual angle
It is little, so as to realize narrow viewing angle pattern.
Please join Figure 12, when to each viewing angle control electrode strip 214a apply respectively unification periodic alternating voltage with
When producing bias between each viewing angle control electrode strip 214a and public electrode 226, vertical electricity is formed between two substrates 21,22
Field (as shown in arrow E in figure), because negative liquid crystal molecule will rotate under electric field action along the direction perpendicular to electric field line,
Negative liquid crystal molecule will deflect under the vertical electric field effect, make the angle of inclination between liquid crystal molecule and substrate 21,22
Reduce.When the inclination angle of liquid crystal molecule reduce to it is almost parallel with substrate 21,22 when, in the screen stravismus side of the display floater 20
Upwards, light leakage phenomena can be reduced accordingly, and the visual angle of the display floater 20 increases therewith, so as to realize wide viewing angle pattern.
That is, in the above-described first embodiment, liquid crystal layer 23 adopts positivity liquid crystal molecule, in an initial condition, just
Property liquid crystal molecule be wide viewing angle pattern in lie low attitude and display floater 20；When needing to switch to narrow viewing angle pattern, at each
Apply periodic ac voltage signal on viewing angle control electrode strip 214a, vertical electric field is formed simultaneously between two substrates 21,22
Drive positivity liquid crystal molecule to deflect to lateral attitude, make display floater 20 show that switching to narrow viewing angle shows from wide viewing angle.
In the present embodiment, liquid crystal layer 23 adopts negative liquid crystal molecule, and in an initial condition, negative liquid crystal molecule is inclined
Attitude and display floater 20 are narrow viewing angle pattern；When needing to switch to wide viewing angle pattern, in each viewing angle control electrode strip
Apply periodic ac voltage signal on 214a, vertical electric field is formed between two substrates 21,22 and negative liquid crystal point is driven
Son deflects to the attitude that lies low, and makes display floater 20 show that switching to wide viewing angle shows from narrow viewing angle.
In the present embodiment, the liquid crystal molecule in liquid crystal layer 23 is negative liquid crystal molecule, to many of viewing angle control electrode 214
When individual viewing angle control electrode strip 214a applies periodic alternating voltage respectively, the display floater 20 is in wide viewing angle pattern.Cause
This, under wide viewing angle pattern, display floater 20 can adopt the driving method described in above-mentioned first embodiment to enter to the present embodiment
Row drives, to improve Mura problems in ghost level and face.
Other structures feature and driving operation principle with regard to the present embodiment, may refer to above-mentioned first embodiment, here
Repeat no more.
To sum up, the switchable liquid crystal indicator in visual angle provided in an embodiment of the present invention and driving method, by by visual angle
Multiple viewing angle control electrode strips that coordination electrode is set to pattern structure and is spaced apart including mutually insulated, make each visual angle control
Electrode strip processed can distinguish applied voltage signal.When a scan line is opened, swept with this by each data wire pair
Retouch the connected a line sub-pixel of line to be charged, and by the electricity of that the viewing angle control electrode strip corresponding with the row sub-pixel
Pressure signal switch to it is identical with the direct current common electric voltage of public electrode, can make every row sub-pixel charge when, it is corresponding to regard
Voltage on the coordination electrode bar of angle is equal, as DC Vcom.So while the alternating voltage pair of each viewing angle control electrode strip
The change in voltage that pixel electrode coupling causes is consistent in face, can be effectively improved Mura problems in ghost and face, is made
Image quality gets a promotion.The light switching that the present embodiment can be realized between wide viewing angle and narrow viewing angle in different occasions, with stronger
Operating flexibility and convenience, reach and integrate the Multifunctional liquid crystal display device that entertainment video maintains secrecy with privacy.
The above is only presently preferred embodiments of the present invention, any pro forma restriction is not made to the present invention, although this
Invention is disclosed above with preferred embodiment, but is not limited to the present invention, any those skilled in the art,
In the range of technical solution of the present invention, when making a little change using the technology contents of the disclosure above or be modified to equivalent
The Equivalent embodiments of change, as long as being that, without departing from technical solution of the present invention content, the technical spirit according to the present invention is real to more than
Any simple modification, equivalent variations and modification that example is made are applied, is still fallen within the range of technical solution of the present invention.
Claims (10)
1. the switchable liquid crystal indicator in a kind of visual angle, including display floater (20), the display floater (20) is including the first base
Second substrate (22) that plate (21) and the first substrate (21) are oppositely arranged and positioned at the first substrate (21) and second base
Liquid crystal layer (23) between plate (22), it is characterised in that the first substrate (21) is provided with viewing angle control electrode (214), and this is regarded
Angle coordination electrode (214) switches for controlling the display floater (20) between wide viewing angle pattern and narrow viewing angle pattern, and this second
Limited and formed multiple sub-pixels by scan line (222) and data wire (223) on substrate (22), the second substrate (22) is in every height
Pixel electrode (228) is provided with pixel, public electrode (226) is additionally provided with the second substrate (22), the viewing angle control electrode
(214) the multiple viewing angle control electrode strips (214a) being spaced apart including mutually insulated, each viewing angle control electrode strip (214a) edge
Parallel to scan line (222) direction extend and it is corresponding with a line sub-pixel.
2. the switchable liquid crystal indicator in visual angle according to claim 1, it is characterised in that adjacent viewing angle control electricity
Interval forms slit (214b) between pole bar (214a), and the slit (214b) is parallel and corresponding with scan line (222).
3. the switchable liquid crystal indicator in visual angle according to claim 2, it is characterised in that on the first substrate (21)
Black matrix (213) is additionally provided with, the slit (214b) is corresponding with the black matrix (213) and the slit (214b) is less than the black matrix
(213) live width.
4. the switchable liquid crystal indicator in visual angle according to claim 1, it is characterised in that the plurality of viewing angle control electricity
The quantity of pole bar (214a) is identical with the line number of sub-pixel, makes every a line sub-pixel by a corresponding viewing angle control electrode strip
(214a) cover.
5. the switchable liquid crystal indicator in visual angle according to claim 1, it is characterised in that the liquid crystal indicator is also
Including an at least driving chip (30), the plurality of viewing angle control electrode strip (214a) is respectively by cabling (31) and at least one drive
Dynamic chip (30) electrical connection.
6. the switchable liquid crystal indicator in visual angle according to claim 1, it is characterised in that the liquid crystal indicator sets
There is view angle switch button (50), for sending view angle switch signal to the liquid crystal indicator for user.
7. a kind of driving method of liquid crystal indicator, changeable for visual angle of the driving as described in any one of claim 1 to 6
Liquid crystal indicator, it is characterised in that the driving method includes：
Apply the periodic exchange of unification respectively to multiple viewing angle control electrode strips (214a) of the viewing angle control electrode (214)
Voltage；
When a scan line (222) is opened, by each data wire (223) outputting data signals pair and the scan line
(222) connected a line sub-pixel is charged, and by that viewing angle control electrode strip corresponding with the row sub-pixel
(214a) voltage signal switches to identical with the direct current common electric voltage (DC Vcom) of the public electrode (226)；
When the scan line (222) is closed, by that viewing angle control electrode strip corresponding with the row sub-pixel
(214a) voltage signal returns to original periodic alternating voltage.
8. the driving method of liquid crystal indicator according to claim 7, it is characterised in that the liquid in the liquid crystal layer (23)
Brilliant molecule is positivity liquid crystal molecule, is applied respectively to multiple viewing angle control electrode strips (214a) of the viewing angle control electrode (214)
During the periodic alternating voltage, the display floater (20) is in narrow viewing angle pattern.
9. the driving method of liquid crystal indicator according to claim 7, it is characterised in that the liquid in the liquid crystal layer (23)
Brilliant molecule is negative liquid crystal molecule, is applied respectively to multiple viewing angle control electrode strips (214a) of the viewing angle control electrode (214)
During the periodic alternating voltage, the display floater (20) is in wide viewing angle pattern.
10. the driving method of liquid crystal indicator according to claim 7, it is characterised in that the periodic alternating current
Pressure fluctuates up and down around the direct current common electric voltage (DC Vcom).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948902.7A CN106646936B (en) | 2016-11-02 | 2016-11-02 | Visual angle changeable liquid crystal display device and driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948902.7A CN106646936B (en) | 2016-11-02 | 2016-11-02 | Visual angle changeable liquid crystal display device and driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106646936A true CN106646936A (en) | 2017-05-10 |
| CN106646936B CN106646936B (en) | 2019-06-11 |
Family
ID=58821446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610948902.7A Active CN106646936B (en) | 2016-11-02 | 2016-11-02 | Visual angle changeable liquid crystal display device and driving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106646936B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219653A (en) * | 2017-07-26 | 2017-09-29 | 昆山龙腾光电有限公司 | The drive module of liquid crystal display device and its width view angle switch |
| CN107229163A (en) * | 2017-06-28 | 2017-10-03 | 昆山龙腾光电有限公司 | Width visual angle changeable liquid crystal display device and driving method |
| CN107490884A (en) * | 2017-09-04 | 2017-12-19 | 昆山龙腾光电有限公司 | Selector, array base palte and liquid crystal display device and driving method |
| CN107995958A (en) * | 2017-07-04 | 2018-05-04 | 昆山龙腾光电有限公司 | The driving method of the changeable liquid crystal display device in width visual angle |
| CN108563078A (en) * | 2018-01-24 | 2018-09-21 | 昆山龙腾光电有限公司 | Liquid crystal display device and driving method |
| CN108694922A (en) * | 2018-04-03 | 2018-10-23 | 昆山龙腾光电有限公司 | Common voltage driving method, device and display device |
| CN108732827A (en) * | 2018-08-08 | 2018-11-02 | 昆山龙腾光电有限公司 | Liquid crystal display device and its driving method |
| WO2018209948A1 (en) * | 2017-05-15 | 2018-11-22 | 深圳市华星光电技术有限公司 | Viewing angle mode switching method for liquid crystal display device and liquid crystal display device |
| 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 |
| CN108983462A (en) * | 2018-08-27 | 2018-12-11 | 昆山龙腾光电有限公司 | The driving method of liquid crystal 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 |
| CN109298557A (en) * | 2018-11-13 | 2019-02-01 | 昆山龙腾光电有限公司 | Display panel and anti-peeping display method and display device |
| CN110268306A (en) * | 2018-11-05 | 2019-09-20 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| WO2020042431A1 (en) * | 2018-08-29 | 2020-03-05 | Boe Technology Group Co., Ltd. | Display panel, display apparatus and anti-peeping method |
| CN111458943A (en) * | 2020-04-22 | 2020-07-28 | 昆山龙腾光电股份有限公司 | Liquid crystal display device with switchable viewing angle and driving method |
| CN112327545A (en) * | 2020-11-18 | 2021-02-05 | 合肥鑫晟光电科技有限公司 | Display device |
| CN112748611A (en) * | 2021-01-19 | 2021-05-04 | 北京京东方显示技术有限公司 | Display assembly and electronic equipment |
| CN114360465A (en) * | 2021-12-27 | 2022-04-15 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
| CN114740644A (en) * | 2022-04-19 | 2022-07-12 | 武汉华星光电技术有限公司 | Display panel and display terminal |
| CN115061317A (en) * | 2022-06-28 | 2022-09-16 | 厦门天马微电子有限公司 | Display panel and display device |
| WO2023124939A1 (en) * | 2021-12-30 | 2023-07-06 | Oppo广东移动通信有限公司 | Liquid crystal display panel, display screen, electronic device, and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010048501A1 (en) * | 2000-06-01 | 2001-12-06 | Kim Hyang Yul | Fringe field switching mode liquid crystal display |
| KR20070003183A (en) * | 2005-06-30 | 2007-01-05 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display and method for fabricating the same |
| CN101526702A (en) * | 2008-03-04 | 2009-09-09 | 上海天马微电子有限公司 | Visual angle controllable liquid crystal display device and driving method thereof |
| CN102162949A (en) * | 2010-02-16 | 2011-08-24 | 精工电子有限公司 | Liquid crystal display device |
| CN103365002A (en) * | 2013-01-07 | 2013-10-23 | 友达光电股份有限公司 | Display device capable of adjusting visual angle and driving method thereof |
| CN105652532A (en) * | 2016-03-07 | 2016-06-08 | 友达光电股份有限公司 | Liquid crystal display panel and driving method thereof |
-
2016
- 2016-11-02 CN CN201610948902.7A patent/CN106646936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010048501A1 (en) * | 2000-06-01 | 2001-12-06 | Kim Hyang Yul | Fringe field switching mode liquid crystal display |
| KR20070003183A (en) * | 2005-06-30 | 2007-01-05 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display and method for fabricating the same |
| CN101526702A (en) * | 2008-03-04 | 2009-09-09 | 上海天马微电子有限公司 | Visual angle controllable liquid crystal display device and driving method thereof |
| CN102162949A (en) * | 2010-02-16 | 2011-08-24 | 精工电子有限公司 | Liquid crystal display device |
| CN103365002A (en) * | 2013-01-07 | 2013-10-23 | 友达光电股份有限公司 | Display device capable of adjusting visual angle and driving method thereof |
| CN105652532A (en) * | 2016-03-07 | 2016-06-08 | 友达光电股份有限公司 | Liquid crystal display panel and driving method thereof |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209948A1 (en) * | 2017-05-15 | 2018-11-22 | 深圳市华星光电技术有限公司 | Viewing angle mode switching method for liquid crystal display device and liquid crystal display device |
| CN107229163A (en) * | 2017-06-28 | 2017-10-03 | 昆山龙腾光电有限公司 | Width visual angle changeable liquid crystal display device and driving method |
| CN107229163B (en) * | 2017-06-28 | 2019-12-20 | 昆山龙腾光电有限公司 | Liquid crystal display device with switchable wide and narrow viewing angles and driving method |
| WO2019006665A1 (en) * | 2017-07-04 | 2019-01-10 | 昆山龙腾光电有限公司 | Method for driving liquid crystal display device capable of switching between wide viewing angle and narrow viewing angle |
| CN107995958A (en) * | 2017-07-04 | 2018-05-04 | 昆山龙腾光电有限公司 | The driving method of the changeable liquid crystal display device in width visual angle |
| US11187928B2 (en) | 2017-07-04 | 2021-11-30 | Infovision Optoelectronics (Kunshan) Co., Ltd. | Method for driving liquid crystal display device capable of switching between wide viewing angle and narrow viewing angle |
| CN107219653B (en) * | 2017-07-26 | 2020-03-24 | 昆山龙腾光电股份有限公司 | Liquid crystal display device and driving module for switching wide and narrow visual angles thereof |
| CN107219653A (en) * | 2017-07-26 | 2017-09-29 | 昆山龙腾光电有限公司 | The drive module of liquid crystal display device and its width view angle switch |
| CN107490884A (en) * | 2017-09-04 | 2017-12-19 | 昆山龙腾光电有限公司 | Selector, array base palte and liquid crystal display device and driving method |
| CN107490884B (en) * | 2017-09-04 | 2020-04-03 | 昆山龙腾光电股份有限公司 | Selector, array substrate, liquid crystal display device and driving method |
| CN108563078A (en) * | 2018-01-24 | 2018-09-21 | 昆山龙腾光电有限公司 | Liquid crystal display device and driving method |
| CN108694922B (en) * | 2018-04-03 | 2020-11-03 | 昆山龙腾光电股份有限公司 | Common voltage driving method and device and display device |
| CN108694922A (en) * | 2018-04-03 | 2018-10-23 | 昆山龙腾光电有限公司 | Common voltage driving method, device and display device |
| CN108732827B (en) * | 2018-08-08 | 2021-10-26 | 昆山龙腾光电股份有限公司 | Liquid crystal display device and driving method thereof |
| CN108732827A (en) * | 2018-08-08 | 2018-11-02 | 昆山龙腾光电有限公司 | Liquid crystal display device and its driving method |
| CN108983462A (en) * | 2018-08-27 | 2018-12-11 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| 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 |
| WO2020042431A1 (en) * | 2018-08-29 | 2020-03-05 | Boe Technology Group Co., Ltd. | Display panel, display apparatus and anti-peeping method |
| CN109243394A (en) * | 2018-10-30 | 2019-01-18 | 昆山龙腾光电有限公司 | Narrow viewing angle display methods |
| CN110268306A (en) * | 2018-11-05 | 2019-09-20 | 昆山龙腾光电有限公司 | The driving method of liquid crystal display device |
| CN109298557A (en) * | 2018-11-13 | 2019-02-01 | 昆山龙腾光电有限公司 | Display panel and anti-peeping display method and display device |
| CN111458943A (en) * | 2020-04-22 | 2020-07-28 | 昆山龙腾光电股份有限公司 | Liquid crystal display device with switchable viewing angle and driving method |
| CN111458943B (en) * | 2020-04-22 | 2022-05-13 | 昆山龙腾光电股份有限公司 | Liquid crystal display device with switchable viewing angle and driving method |
| US11714319B2 (en) | 2020-11-18 | 2023-08-01 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Display device and method for manufacturing the same |
| CN112327545A (en) * | 2020-11-18 | 2021-02-05 | 合肥鑫晟光电科技有限公司 | Display device |
| CN112327545B (en) * | 2020-11-18 | 2024-03-26 | 合肥鑫晟光电科技有限公司 | Display device |
| CN112748611A (en) * | 2021-01-19 | 2021-05-04 | 北京京东方显示技术有限公司 | Display assembly and electronic equipment |
| CN112748611B (en) * | 2021-01-19 | 2023-07-07 | 北京京东方显示技术有限公司 | Display assembly and electronic equipment |
| CN114360465A (en) * | 2021-12-27 | 2022-04-15 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
| WO2023124939A1 (en) * | 2021-12-30 | 2023-07-06 | Oppo广东移动通信有限公司 | Liquid crystal display panel, display screen, electronic device, and control method |
| CN114740644A (en) * | 2022-04-19 | 2022-07-12 | 武汉华星光电技术有限公司 | Display panel and display terminal |
| CN115061317A (en) * | 2022-06-28 | 2022-09-16 | 厦门天马微电子有限公司 | Display panel and display device |
| CN115061317B (en) * | 2022-06-28 | 2023-12-12 | 厦门天马微电子有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106646936B (en) | 2019-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106646936B (en) | Visual angle changeable liquid crystal display device and driving method | |
| CN107624168A (en) | The changeable liquid crystal display device in visual angle and its view angle switch method | |
| CN107820581B (en) | Liquid crystal display device with switchable viewing angle and viewing angle switching method | |
| CN107255895A (en) | Array base palte and liquid crystal display device and driving method | |
| CN107466376A (en) | The changeable liquid crystal display device in visual angle and view angle switch method | |
| CN106773176A (en) | Visual angle changeable liquid crystal display device and driving method | |
| CN107861278B (en) | Liquid crystal display device having a plurality of pixel electrodes | |
| WO2019006665A1 (en) | Method for driving liquid crystal display device capable of switching between wide viewing angle and narrow viewing angle | |
| CN106932973B (en) | The changeable liquid crystal display device in visual angle | |
| CN107966835B (en) | Array substrate, liquid crystal display device and driving method | |
| CN109669305B (en) | Array substrate and liquid crystal display panel | |
| CN107505782A (en) | Array base palte and liquid crystal display device and driving method | |
| WO2021032199A1 (en) | Pixel architecture, array substrate and display apparatus | |
| CN108257576B (en) | Array substrate and driving method thereof, and liquid crystal display device and driving method thereof | |
| CN107193164A (en) | Array base palte and liquid crystal display device and driving method | |
| CN106940497A (en) | The two-way controllable liquid crystal display device in width visual angle | |
| CN107797343A (en) | Visual angle changeable liquid crystal display device and its driving method | |
| CN107229163A (en) | Width visual angle changeable liquid crystal display device and driving method | |
| KR102481169B1 (en) | Liquid crystal display device | |
| CN108983462A (en) | The driving method of liquid crystal display device | |
| CN107678214B (en) | Array substrate, liquid crystal display device and driving method | |
| CN107678213B (en) | Array substrate, liquid crystal display device and driving method | |
| WO2019192082A1 (en) | Liquid crystal display device | |
| CN104330936B (en) | Display panel and display device | |
| CN115343870A (en) | Display panel with switchable wide and narrow viewing angles, display device and driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |