CN106353936B - Width visual angle controllable liquid crystal display device and method of controlling viewing angle - Google Patents
Width visual angle controllable liquid crystal display device and method of controlling viewing angle Download PDFInfo
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- CN106353936B CN106353936B CN201611027107.0A CN201611027107A CN106353936B CN 106353936 B CN106353936 B CN 106353936B CN 201611027107 A CN201611027107 A CN 201611027107A CN 106353936 B CN106353936 B CN 106353936B
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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
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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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
Abstract
A kind of liquid crystal display device and method of controlling viewing angle that width visual angle is controllable, wherein the liquid crystal display device includes first substrate, the second substrate and the liquid crystal layer between the first substrate and the second substrate, the first substrate is equipped with public electrode, it is limited in the second substrate by scan line and data line and forms multiple sub-pixels, pixel electrode is equipped in each sub-pixel, the liquid crystal layer is closed on the first substrate equipped with the first alignment film, the liquid crystal layer is closed in the second substrate equipped with the second alignment film, viewing angle control electrode is additionally provided on the first substrate, the viewing angle control electrode is pattern structure and multiple viewing angle control electrode strips including being spaced apart from each other, the extending direction of multiple viewing angle control electrode strip is parallel to the alignment direction of first alignment film.In the present embodiment, by controlling the voltage being applied on viewing angle control electrode, the width view angle switch on viewing angle control electrode strip extending direction may be implemented, there is stronger operating flexibility and convenience.
Description
Technical field
The present invention relates to the technical fields of liquid crystal display, more particularly to a kind of liquid crystal display device that width visual angle is controllable
And method of controlling viewing angle.
Background technique
Liquid crystal display device (liquid crystal display, LCD) has good, small in size, light-weight, the low drive of image quality
Dynamic voltage, low-power consumption, radiationless and relatively low manufacturing cost advantage, occupy an leading position in flat display field.
Present display device develops progressively towards the direction of wide viewing angle, either mobile terminal of mobile telephone application, shows on table
Show device or laptop computer applications, other than the demand of wide viewing angle, also needs display device to have wide view in many occasions
The function that angle and narrow viewing angle mutually switch.Currently, be mainly the following mode realize to the wide viewing angle of liquid crystal display device with
Narrow viewing angle switching.
The first is to attach blinds Protective film on a display screen to realize, when needing to carry out peep-proof, is blocked using blinds
Film, which covers screen, can reduce visual angle.But this mode needs additionally to prepare blinds Protective film, causes greatly to user
Inconvenience, and a blinds Protective film can only realize a kind of visual angle, and after attaching upper blinds Protective film, visual angle is just secured,
It can only realize narrow viewing angle mode, can not just show wide viewing function again.
Second is the visual angle that double light source back light systems are arranged in liquid crystal display device and are used to adjust liquid crystal display device,
Double light source back light systems combine anti-prismatic lens to constitute by the light guide plate of two-layer laminate, and top layer light guide plate (LGP-T) combines anti-rib
Eyeglass changes the trend of light so that light is limited in narrow angular range, realizes the narrow viewing angle of liquid crystal display device, and
The function of the anti-prismatic lens of bottom light guide plate (LGP-B) combination then realizes the wide viewing angle of liquid crystal display device.But this double light sources
Back light system will lead to the thickness of liquid crystal display device and cost increases, and does not meet the lightening development of liquid crystal display device and becomes
Gesture.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid crystal display devices and method of controlling viewing angle that width visual angle is controllable, can be real
The width view angle switch of existing different occasions, solves drawback possessed by existing view angle switch mode.
The present invention provides a kind of liquid crystal display device that width visual angle is controllable, including first substrate, with the first substrate phase
The second substrate to setting and the liquid crystal layer between the first substrate and the second substrate, the first substrate are equipped with public affairs
Common electrode is limited in the second substrate by scan line and data line and forms multiple sub-pixels, and pixel electricity is equipped in each sub-pixel
Pole closes on the liquid crystal layer on the first substrate equipped with the first alignment film, closes on the liquid crystal layer in the second substrate and match equipped with second
To film, it is additionally provided with viewing angle control electrode on the first substrate, the viewing angle control electrode is for pattern structure and including being spaced apart from each other
Multiple viewing angle control electrode strips, the extending direction of multiple viewing angle control electrode strip is parallel to the orientation side of first alignment film
To.
Further, multiple viewing angle control electrode strip extends along horizontal direction.
Further, the extending direction of multiple viewing angle control electrode strip is identical as scan line.
Further, multiple viewing angle control electrode strip extends along vertical direction.
Further, the extending direction of multiple viewing angle control electrode strip is identical as data line.
Further, insulating layer is equipped between the public electrode and the viewing angle control electrode, which compares
In the public electrode closer to the liquid crystal layer.
Further, multiple viewing angle control electrode strip is electrically connected to each other together.
Further, the alignment direction of second alignment film and the alignment direction of first alignment film are mutually perpendicular to.
The present invention also provides a kind of method of controlling viewing angle of liquid crystal display device that above-mentioned width visual angle is controllable, visual angle controls
Method processed includes:
In wide viewing angle display, apply and the public electrode phase to multiple viewing angle control electrode strips of the viewing angle control electrode
Same voltage；
In narrow viewing angle display, apply to multiple viewing angle control electrode strips of the viewing angle control electrode with the public electrode not
Same voltage.
Further, when wide viewing angle is shown, direct current common voltage is exported to the public electrode, to the viewing angle control electrode
Multiple viewing angle control electrode strips export identical with the direct current common voltage of public electrode DC voltage；It is shown in narrow viewing angle
When, direct current common voltage is exported to the public electrode, is surrounded to the output of multiple viewing angle control electrode strips of the viewing angle control electrode
The periodic AC voltage that the direct current common voltage fluctuates up and down.
Width visual angle provided by the invention controllable liquid crystal display device and method of controlling viewing angle, by the first substrate
Patterned viewing angle control electrode is set, and the extending direction of multiple viewing angle control electrode strips of viewing angle control electrode is parallel to first
The alignment direction of alignment film may be implemented by controlling the voltage being applied on viewing angle control electrode in viewing angle control electrode strip
Extending direction on width view angle switch.To, without using Protective film, do not increase product thickness and cost of manufacture substantially
Under conditions of, width visual angle free switching can be realized based on the liquid crystal display of TN mode, there is stronger operating flexibility and side
Just property reaches the Multifunctional liquid crystal display device for integrating entertainment video and privacy secrecy.
Detailed description of the invention
Fig. 1 is the floor map of the single sub-pixel of liquid crystal display device in first embodiment of the invention.
Fig. 2 is the single sub-pixel of liquid crystal display device in Fig. 1 along the schematic cross-section of II-II line.
Fig. 3 a to Fig. 3 b is the arrangement of the liquid crystal molecule when both viewing angle control electrode and public electrodes voltage is identical in Fig. 2
Schematic diagram.
Fig. 4 a to Fig. 4 b is the arrangement of the liquid crystal molecule in both viewing angle control electrode and public electrode voltage difference in Fig. 2
Schematic diagram.
Fig. 5 is the floor map of the single sub-pixel of liquid crystal display device in second embodiment of the invention.
Specific embodiment
It is of the invention to reach the technical approach and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Accompanying drawings and embodiments, to a specific embodiment of the invention, structure, feature and its effect, detailed description is as follows.
[first embodiment]
Fig. 1 is the floor map of the single sub-pixel of liquid crystal display device in first embodiment of the invention, Fig. 2 Fig. 1
The single sub-pixel of middle liquid crystal display device please join Fig. 1 to Fig. 2 along the schematic cross-section of II-II line, the liquid crystal display device
The second substrate 22 that is oppositely arranged including first substrate 21, with first substrate 21 and be located at first substrate 21 and the second substrate 22 it
Between liquid crystal layer 23.Wherein, first substrate 21 is colored filter substrate, and the second substrate 22 is thin-film transistor array base-plate.
Liquid crystal display device provided in this embodiment is suitable for the liquid crystal display device of twisted nematic (Twisted Nematic, TN),
It is based on being improved based on the liquid crystal display of TN type.
First substrate 21 is being equipped with 211 (common of public electrode close to the side of liquid crystal layer 23 (i.e. inside)
Electrode), insulating layer 212, viewing angle control electrode 213 and the first alignment film 214.Wherein, public electrode 211 can be whole
Face structure, viewing angle control electrode 213 are specially pattern structure, are equipped between public electrode 211 and viewing angle control electrode 213 exhausted
Edge layer 212, viewing angle control electrode 213 is compared to public electrode 211 closer to liquid crystal layer 23.First alignment film 214 is formed in view
In angle coordination electrode 213, the first alignment film 214 closes on the setting of liquid crystal layer 23.First alignment film 214 has alignment direction X1, makes
Liquid crystal molecule in liquid crystal layer 23 close to first substrate 21 can be arranged along alignment direction X1.
The second substrate 22 is being equipped with scan line 222, data line 223, film crystalline substance close to the side of liquid crystal layer 23 (i.e. inside)
Body pipe (TFT) 224, pixel electrode 225 (pixel electrode) and the second alignment film 226.Wherein, multi-strip scanning line 222 with
Multiple data lines 223, which intersect, limits formation in multiple sub-pixels (sub-pixel) of array distribution, and each sub-pixel is for example
For red (R), green (G), blue (B) sub-pixel, each sub-pixel is interior to be equipped with pixel electrode 225.Thin film transistor (TFT) 224 is located at
Near the position that scan line 222 is intersected with data line 223, each thin film transistor (TFT) 224 includes that (figure is not for grid, source electrode and drain electrode
Mark), wherein grid is electrically connected corresponding scan line 222, and source electrode is electrically connected corresponding data line 223, and drain electrode electrical connection is corresponding
Pixel electrode 225.Second alignment film 226 closes on the setting of liquid crystal layer 23.Second alignment film 226 has alignment direction X2, makes liquid crystal
Liquid crystal molecule in layer 23 close to the second substrate 22 can be arranged along alignment direction X2.In the present embodiment, the second alignment film 226
Alignment direction X2 and the alignment direction X1 of the first alignment film 214 be mutually perpendicular to, to make liquid crystal molecule in upper and lower two substrates
21,90 ° of twisting gesture arrangement can be presented between 22.Specifically, it can be realized by modes such as friction matching, light orientations to
The orientation of one alignment film 214 and the second alignment film 226 operates.
It should be appreciated that in the present embodiment, only being illustrated and this implementation on first substrate 21 and the second substrate 22 in figure
The relevant film layer structure of example, is then omitted with the incoherent film layer structure of the present embodiment.
Viewing angle control electrode 213 is for applying voltage to control the liquid crystal display device between wide viewing angle and narrow viewing angle and cut
It changes.Specifically, viewing angle control electrode 213 be pattern structure and multiple viewing angle control electrode strip 213a including being spaced apart from each other,
The extending direction of multiple viewing angle control electrode strip 213a is parallel to the alignment direction X1 of the first alignment film 214.In the present embodiment,
Multiple viewing angle control electrode strip 213a extends along horizontal direction, and the extending direction of multiple viewing angle control electrode strip 213a
It is identical as scan line 222.
Further, multiple viewing angle control electrode strip 213a is electrically connected to each other together, such as can be in non-display area
It is electrically connected to each other together.The liquid crystal display device further includes driving chip (not shown), multiple viewing angle control electrode strip
213a is electrically connected with the driving chip.Due to being electrically connected to each other between these viewing angle control electrode strips 213a, pass through the drive
Dynamic chip can apply unified voltage signal to these viewing angle control electrode strips 213a.
Tin indium oxide (ITO), oxygen can be used in above-mentioned viewing angle control electrode 213, public electrode 211 and pixel electrode 225
Change electrically conducting transparents materials such as indium zinc (IZO) and is made for transparent electrode.
Viewing angle control electrode 213 carries out view angle switch for controlling the liquid crystal display device, by viewing angle control electrode
Apply voltage on 213 each viewing angle control electrode strip 213a, it can be in each viewing angle control electrode strip 213a and public electrode
It is poor (i.e. bias) that different voltages are generated between 211, make the liquid crystal display device realize wide viewing angle mode and narrow viewing angle mode it
Between switch.
As best seen in figs. 3a and 3b, when applying on viewing angle control electrode 213 with 211 identical voltage of public electrode,
Such as direct current common voltage (i.e. DC Vcom) is exported to public electrode 211, while exporting to each viewing angle control electrode strip 213a
When with direct current common voltage (i.e. DC Vcom) identical d. c. voltage signal of public electrode 211, then in viewing angle control electrode
There is no bias generation between 213 and public electrode 211, which realizes that normal wide viewing angle is shown.At this point, if picture
The voltage of display is not applied on plain electrode 225, then liquid crystal molecule is kept initial between first substrate 21 and the second substrate 22
Twisting gesture, which is presented white state, as shown in Figure 3a；If applying the electricity of display on pixel electrode 225
Pressure, then initial twisting gesture of the liquid crystal molecule between first substrate 21 and the second substrate 22 is broken, the liquid crystal display device
Black state is presented, as shown in Figure 3b.
As shown in Fig. 4 a and Fig. 4 b, when applying the voltages different from public electrode 211 on viewing angle control electrode 213,
Such as direct current common voltage (i.e. DC Vcom) is exported to public electrode 211, while exporting to each viewing angle control electrode strip 213a
When around the periodic AC voltage that the direct current common voltage (i.e. DC Vcom) fluctuates up and down, then viewing angle control electrode 213 with
It generates bias between public electrode 211, horizontal component of electric field (arrow in such as figure can be formed close to the region of liquid crystal layer 23 in first substrate 21
Shown in head E), liquid crystal molecule deflects under horizontal component of electric field effect, eventually leads to screen and light leakage phenomena, screen contrast occurs
Degree reduces and visual angle reduces, and the liquid crystal display device is made to realize that narrow viewing angle is shown.At this point, if not applying on pixel electrode 225
White state is presented in the voltage of display, the liquid crystal display device, as shown in fig. 4 a；If applying display on pixel electrode 225
Black state is presented in voltage, the liquid crystal display device, as shown in Figure 4 b.
Preferably, in the present embodiment, in wide viewing angle display, the voltage exported to public electrode 211 is direct current common electrical
It presses (i.e. DC Vcom), the voltage exported to multiple viewing angle control electrode strip 213a of viewing angle control electrode 213 is and public electrode
The 211 identical DC voltage of direct current common voltage (DC Vcom)；In narrow viewing angle display, to the electricity of the output of public electrode 211
Pressure is direct current common voltage (DC Vcom), the voltage exported to multiple viewing angle control electrode strip 213a of viewing angle control electrode 213
For the periodic AC voltage fluctuated up and down around the direct current common voltage (DC Vcom), the wherein periodic AC voltage
Waveform is specifically as follows square wave, sine wave, triangular wave or sawtooth wave etc..
In the present embodiment in the case where narrow viewing angle is shown, the voltage signal on each viewing angle control electrode strip 213a is applied to as week
The alternating voltage of phase property overturns the polarity of voltage of each viewing angle control electrode strip 213a constantly relative to public electrode 211, this
Sample constantly changes in first substrate 21 close to the horizontal component of electric field direction that the region of liquid crystal layer 23 is formed, can be to avoid first substrate 21
Liquid crystal close to liquid crystal layer 23 polarizes.
The extending direction of multiple viewing angle control electrode strip 213a of viewing angle control electrode 213 is parallel to the first alignment film 214
Alignment direction X1, as the extending direction of multiple viewing angle control electrode strip 213a and the alignment direction X1 of the first alignment film 214
When parallel, the narrow viewing angle on viewing angle control electrode strip 213a extending direction may be implemented.In the present embodiment, multiple viewing angle control
Electrode strip 213a is parallel to the alignment direction X1 of the first alignment film 214 and extends along horizontal direction, and therefore, the present embodiment can be with
Realize the narrow viewing angle of liquid crystal display device in the lateral direction.
| Up/down/left right to visual angle | 60°/60°/60°/60° | 60°/60°/30°/30° |
| Center contrast | 940 | 385 |
Shown in test data in table as above, in the present embodiment, in the case where wide viewing angle is shown, up/down/left right to view
Angle can achieve 60 °, and center contrast can achieve 940；In the case where narrow viewing angle is shown, the visual angle in up/down direction can reach
To 60 °, but left right to visual angle be reduced to 30 °, i.e., realize narrow viewing angle display effect in left and right directions, and narrow viewing angle is shown
Shi Zhongxin contrast can maintain 385.
[second embodiment]
It please join Fig. 5, the present embodiment and the main distinction of above-mentioned first embodiment are, in the present embodiment, multiple view
Angle coordination electrode 213a extends along vertical direction, and the extending direction and data of multiple viewing angle control electrode strip 213a
Line 223 is identical.Since in the present embodiment, multiple viewing angle control electrode strip 213a is parallel to the orientation of the first alignment film 214
Direction X1 and extend along vertical direction, therefore, the narrow view of liquid crystal display device in the up-down direction may be implemented in the present embodiment
Angle.
| Up/down/left right to visual angle | 60°/60°/60°/60° | 25°/30°/70°/70° |
| Center contrast | 940 | 225 |
Shown in test data in table as above, in the present embodiment, in the case where wide viewing angle is shown, up/down/left right to view
Angle can achieve 60 °, and center contrast can achieve 940；In the case where narrow viewing angle is shown, left right to visual angle can reach
To 70 °, but the visual angle in up/down direction is reduced to 25 °~30 °, i.e., realizes narrow viewing angle display effect in above-below direction, and narrow viewing angle
Center contrast can maintain 225 when display.
About the other structures of the present embodiment, above-mentioned first embodiment may refer to, details are not described herein.
The embodiment of the present invention also provides a kind of method of controlling viewing angle of liquid crystal display device, and being used for can to above-mentioned width visual angle
The liquid crystal display device of control carries out view angle switch control, which includes:
In wide viewing angle display, to multiple viewing angle control electrode strip 213a of viewing angle control electrode 213 application and common electrical
The identical voltage in pole 211；
In narrow viewing angle display, to multiple viewing angle control electrode strip 213a of viewing angle control electrode 213 application and common electrical
The different voltage in pole 211.
Further, when wide viewing angle is shown, direct current common voltage (i.e. DC Vcom) is exported to public electrode 211, to view
The direct current common voltage (DC Vcom) of multiple viewing angle control electrode strip 213a output and public electrode 211 of angle coordination electrode 213
Identical DC voltage；In narrow viewing angle display, direct current common voltage (DC Vcom) is exported to public electrode 211, is controlled to visual angle
The week that multiple viewing angle control electrode strip 213a output of electrode 213 processed is fluctuated up and down around the direct current common voltage (DC Vcom)
Phase property alternating voltage, wherein the waveform of the periodic AC voltage can be square wave, sine wave, triangular wave or sawtooth wave etc..
Liquid crystal display device in the method for controlling viewing angle and above-described embodiment of the present embodiment belongs to the same design, the view
More contents of angle control method are no longer superfluous herein referring also to the description as described in liquid crystal display device in above-described embodiment
It states.
Width visual angle provided by the invention controllable liquid crystal display device and method of controlling viewing angle, by the first substrate
Patterned viewing angle control electrode is set, and the extending direction of multiple viewing angle control electrode strips of viewing angle control electrode is parallel to first
Viewing angle control electrode strip may be implemented by controlling the voltage being applied on viewing angle control electrode in the alignment direction of alignment film
Width view angle switch on extending direction.To, without using Protective film, do not increase product thickness and cost of manufacture substantially
Under the conditions of, width visual angle free switching can be realized based on the liquid crystal display of TN mode, with stronger operating flexibility and conveniently
Property, reach the Multifunctional liquid crystal display device for integrating entertainment video and privacy secrecy.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of liquid crystal display device that width visual angle is controllable, including first substrate (21), opposite with the first substrate (21) set
The second substrate (22) set and the liquid crystal layer (23) between the first substrate (21) and the second substrate (22), this first
Substrate (21) is equipped with public electrode (211), limits shape by scan line (222) and data line (223) in the second substrate (22)
At multiple sub-pixels, pixel electrode (225) are equipped in each sub-pixel, the liquid crystal layer (23) is closed on the first substrate (21) and sets
There are the first alignment film (214), the liquid crystal layer (23) is closed in the second substrate (22) equipped with the second alignment film (226), feature
It is, is additionally provided with viewing angle control electrode (213) on the first substrate (21), which is pattern structure
And multiple viewing angle control electrode strips (213a) including being spaced apart from each other, the extending direction of multiple viewing angle control electrode strip (213a)
The alignment direction (X1) of first alignment film (214) is parallel to by controlling the viewing angle control electrode (213) and the common electrical
Bias between pole (211) makes the liquid crystal display device realize the narrow view on viewing angle control electrode strip (213a) extending direction
Angle.
2. the controllable liquid crystal display device in width visual angle according to claim 1, which is characterized in that multiple viewing angle control
Electrode strip (213a) extends along horizontal direction.
3. the controllable liquid crystal display device in width visual angle according to claim 2, which is characterized in that multiple viewing angle control
The extending direction of electrode strip (213a) is identical as scan line (222).
4. the controllable liquid crystal display device in width visual angle according to claim 1, which is characterized in that multiple viewing angle control
Electrode strip (213a) extends along vertical direction.
5. the controllable liquid crystal display device in width visual angle according to claim 4, which is characterized in that multiple viewing angle control
The extending direction of electrode strip (213a) is identical as data line (223).
6. the controllable liquid crystal display device in width visual angle according to claim 1, which is characterized in that the public electrode
(211) insulating layer (212) are equipped between the viewing angle control electrode (213), the viewing angle control electrode (213) is public compared to this
Electrode (211) is closer to the liquid crystal layer (23).
7. the controllable liquid crystal display device in width visual angle according to claim 1, which is characterized in that multiple viewing angle control
Electrode strip (213a) is electrically connected to each other together.
8. the controllable liquid crystal display device in width visual angle according to claim 1, which is characterized in that second alignment film
(226) alignment direction (X2) and the alignment direction (X1) of first alignment film (214) are mutually perpendicular to.
9. a kind of method of controlling viewing angle for the liquid crystal display device that width visual angle as claimed in any one of claims 1 to 8 is controllable,
It is characterized in that, the method for controlling viewing angle includes:
In wide viewing angle display, apply and the public affairs to multiple viewing angle control electrode strips (213a) of the viewing angle control electrode (213)
The identical voltage of common electrode (211)；
In narrow viewing angle display, apply and the public affairs to multiple viewing angle control electrode strips (213a) of the viewing angle control electrode (213)
The different voltage of common electrode (211).
10. the method for controlling viewing angle of the controllable liquid crystal display device in width visual angle according to claim 9, feature exist
In in wide viewing angle display, to the public electrode (211) output direct current common voltage, to the more of the viewing angle control electrode (213)
A viewing angle control electrode strip (213a) exports DC voltage identical with the direct current common voltage of the public electrode (211)；Narrow
When visual angle is shown, direct current common voltage is exported to the public electrode (211), to multiple visual angles of the viewing angle control electrode (213)
The periodic AC voltage that coordination electrode item (213a) output is fluctuated up and down around the direct current common voltage.
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| CN106855675B (en) * | 2017-03-14 | 2020-01-07 | 京东方科技集团股份有限公司 | Peep-proof device and peep-proof display equipment |
| CN109298571B (en) * | 2018-10-30 | 2021-07-13 | 昆山龙腾光电股份有限公司 | Liquid crystal display device and driving method |
| CN110376804B (en) * | 2019-06-27 | 2022-08-02 | 上海天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN112327545B (en) | 2020-11-18 | 2024-03-26 | 合肥鑫晟光电科技有限公司 | Display device |
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| CN101498871A (en) * | 2008-01-31 | 2009-08-05 | 上海天马微电子有限公司 | Visual angle-controllable LCD device and its driving method |
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