CN105807512A - Display panel, display device and driving method thereof - Google Patents
Display panel, display device and driving method thereof Download PDFInfo
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- CN105807512A CN105807512A CN201610227782.1A CN201610227782A CN105807512A CN 105807512 A CN105807512 A CN 105807512A CN 201610227782 A CN201610227782 A CN 201610227782A CN 105807512 A CN105807512 A CN 105807512A
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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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a display panel, a display device and a driving method thereof.A view angle control electrode is arranged on a second substrate (color filter substrate) of the display panel, and voltage is applied on the view angle control electrode when a narrow view angle is needed, so that an electric field perpendicular to the display panel is generated between the view angle control electrode, a pixel electrode arranged on a first substrate (array substrate) and a common electrode, liquid crystal molecules have dip angle changes in the vertical direction, and the purposes of squint dark state light leakage, contrast decrease, view angle narrowing and narrow-view-angle display are achieved.Therefore, the wide-view-angle mode and the narrow-view-angle mode can be switched by adjusting the voltage applied on the view control voltage.
Description
Technical field
The invention belongs to Display Technique field, more particularly, to a kind of display floater, display device and driving method thereof.
Background technology
Liquid crystal display (LiquidCrystalDisplay, LCD) possesses the plurality of advantages such as frivolous, energy-conservation, radiationless, has therefore replaced traditional cathode ray tube (CRT) display gradually.Current liquid crystal display is widely used in the electronic equipments such as HD digital TV, desk computer, personal digital assistant (PDA), notebook computer, mobile phone, digital camera.
At present, liquid crystal display develops towards wide viewing angle direction gradually, such as, the portable electronic display device of the wide viewing angle such as display, notebook computer on mobile terminal of mobile telephone, table, the design of wide viewing angle makes user from all directions all it can be seen that complete and distortionless picture.But, when individual privacy and the important information of the person of being directed to use with, the use in some cases of the display of wide viewing angle also can make user feel inconvenience, such as, when waiting for bus AT STATION, the people at user side and rear very likely gets a glimpse of the content on the screen of the portable electronic display device of the wide viewing angle of user.
Therefore, except the demand of wide viewing angle, under the occasion needing peep-proof, it is possible to by display switching or adjust the display of narrow field-of-view mode and also grow up gradually.At present, mainly there are three kinds of modes that the wide viewing angle of display is switched over narrow visual angle: the first is to be realized by BAIYE Protective film, when needs carry out peep-proof, utilizes BAIYE Protective film to cover screen and can reduce visual angle；The second is the visual angle arranging double; two light source back light system in a liquid crystal display for adjustable liquid crystal display display.This pair of light source back light system is made up of in conjunction with anti-prismatic lens the light guide plate of two-layer laminate, the trend that top layer light guide plate (LGP-T) changes light in conjunction with anti-prismatic lens makes light be limited in narrow angular range, realizing the narrow visual angle of liquid crystal display, bottom light guide plate (LGP-B) then realizes the wide viewing angle of liquid crystal display in conjunction with the function of anti-prismatic lens；The third is that the drive electrode on the panel of liquid crystal display is divided into two kinds, one of which is wide viewing angle display drive electrode, another kind is to control visual angle electrode, when liquid crystal display can be made to produce suitable light leak when controlling and visual angle electrode applying suitable voltage, and then realize the switching of wide viewing angle and narrow visual angle.
But, first method has the disadvantage that this mode needs additionally preparation BAIYE Protective film, and needs user to carry with, and causes great inconvenience to user；The second way has the disadvantage that this kind of double; two light source back light systems can cause that the thickness of liquid crystal display and cost all increase, and does not meet the development trend that liquid crystal display is lightening；The third mode has the disadvantage that and need to arrange wide viewing angle display drive electrode on a liquid crystal display and control visual angle two kinds of electrodes of electrode, and it makes the aperture opening ratio of liquid crystal display reduce, and causes that the panel luminance of liquid crystal display declines.
Therefore, it is necessary to provide the technical scheme improved to overcome the above technical problem existed in prior art.
Summary of the invention
It is an object of the invention to provide a kind of display floater, display device and control method thereof.
According to an aspect of the present invention, it is provided that a kind of display floater, including: first substrate, multiple pixel electrode and multiple public electrode it is provided with array way；Second substrate, is provided with multiple viewing angle control electrode with array way；Liquid crystal layer, is arranged between described first substrate and described second substrate；Each viewing angle control electrode is formed by the arrangement of multiple " bow " font；Odd bits viewing angle control electrode in the plurality of viewing angle control electrode is respectively used to even bit viewing angle control electrode apply the bias voltage that polarity is different, to adjust the visual angle of described display floater.
Preferably, the odd bits viewing angle control electrode in the plurality of viewing angle control electrode and even bit viewing angle control electrode are staggered.
Preferably, the odd bits viewing angle control electrode in the plurality of viewing angle control electrode is identical with the driving voltage polarity of the odd bits pixel electrode in the plurality of pixel electrode；Even bit viewing angle control electrode is identical with the driving voltage polarity of the even bit pixel electrode in the plurality of pixel electrode.
Preferably, multiple viewing angle control electrodes are in row row's column or row arrangement.
Preferably, described bias voltage includes having the alternating voltage of the first amplitude and has the alternating voltage of the second amplitude, and wherein, the first amplitude is more than the second amplitude.
Preferably, the polarity of the alternating voltage described in the first amplitude changes with the change in polarity of the driving voltage of the pixel electrode being applied to correspondence.
Preferably, have described in the alternating voltage of the second amplitude the change in polarity frequency that change in polarity frequency is the driving voltage being applied to pixel electrode 1/2nd or identical with the change in polarity frequency of described driving voltage.
Preferably, there is described in the alternating voltage of the first amplitude and the described alternating voltage with the second amplitude is sine wave, square wave, triangular wave or sawtooth waveforms.
According to a further aspect in the invention, a kind of display device is provided, including: driving chip and display floater described above, wherein, described driving chip is for applying, to described viewing angle control electrode, the alternating voltage with the first amplitude that polarity is different in the flrst mode；Under the second mode described viewing angle control electrode is applied the voltage with the second amplitude that polarity is different.
According to the third aspect of the invention we, it is provided that the driving method of a kind of display device described above, including: in the flrst mode described viewing angle control electrode is applied the different alternating voltage with the first amplitude of polarity；Under the second mode described viewing angle control electrode is applied the alternating voltage with the second amplitude that polarity is different.
Display floater provided by the invention, display device and driving method thereof, by arranging viewing angle control electrode on the second substrate of liquid crystal indicator (colored filter substrate), and when needing narrow visual angle, viewing angle control electrode is applied voltage so that producing to be perpendicular to the electric field in panel direction between itself and the pixel electrode and the public electrode that are arranged on first substrate (array base palte), liquid crystal molecule is made to produce change of pitch angle in the vertical direction, thus reaching stravismus dark-state light leak, contrast declines, visual angle reduces, the purpose that narrow visual angle shows.Thus, by regulating the voltage being applied to viewing angle control electrode, can realize switching between wide viewing angle and narrow field-of-view mode.
Accompanying drawing explanation
By referring to the accompanying drawing description to the embodiment of the present invention, above-mentioned and other purposes of the present invention, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 illustrates the schematic diagram of the display floater of the embodiment of the present invention；
Fig. 2 A-Fig. 2 B illustrates the schematic diagram of the viewing angle control electrode of the display floater of the embodiment of the present invention；
Fig. 3 A-3B illustrates the principle schematic of the display floater of the embodiment of the present invention；
Fig. 4 A-4D illustrates the change in polarity schematic diagram of the driving voltage of the pixel electrode of the display device of the embodiment of the present invention；
Fig. 5 A-5D illustrates the oscillogram of the voltage being applied to viewing angle control electrode in the display device of the embodiment of the present invention；
Fig. 6 illustrates the schematic diagram of the display device of the embodiment of the present invention；
Fig. 7 illustrates the flow chart of the driving method of the display device of the embodiment of the present invention.
Detailed description of the invention
It is more fully described various embodiments of the present invention hereinafter with reference to accompanying drawing.In various figures, identical element adopts same or similar accompanying drawing labelling to represent.For the sake of clarity, the various piece in accompanying drawing is not necessarily to scale.
The present invention can present in a variety of manners, some of them example explained below.
Fig. 1 is the schematic diagram of the display floater of the embodiment of the present invention.
As it is shown in figure 1, the display panels of the embodiment of the present invention includes first substrate 1, second substrate 2 and liquid crystal layer 3.
First substrate 1 namely commonly called thin-film transistor array base-plate, it is provided with the multiple pixel electrodes 11 with array way setting and multiple public electrode 12.Described first substrate can include the line etc. between transparent substrate 13, the driver part (such as TFT device) being formed on substrate and different parts, and for the ease of understanding the present invention, above-mentioned parts are not shown in FIG. 1.Described pixel electrode 11 and public electrode 12 are arranged on substrate 13.The electric field of horizontal direction can be formed between described pixel electrode 11 and the public electrode 12 of correspondence, thus the liquid crystal molecule controlled in a pixel region turns to, regulate the light intensity passed through.Pixel electrode 11 and corresponding public electrode 12 can utilize the transparent conductive materials such as such as tin indium oxide (ITO) to be formed.
Liquid crystal layer 3 is arranged between first substrate 1 and second substrate 2.Liquid crystal molecule in liquid crystal layer 3 is by orientation in advance.In an initial condition, liquid crystal layer 3 make pass through first substrate 1 polarized light cannot eventually through the light polarizing film (not shown in figure 1) of the superiors.
Second substrate 2 and first substrate 1 are oppositely arranged, and it is provided with multiple viewing angle control electrode 21 with array way.In the present embodiment, second substrate is colored filter substrate.In the present embodiment, described viewing angle control electrode 21 is formed by the arrangement of multiple " bow " font, odd bits viewing angle control electrode in the plurality of viewing angle control electrode 21 is respectively used to even bit viewing angle control electrode apply the bias voltage that polarity is different, to adjust the visual angle of described display floater.
Fig. 2 A-Fig. 2 B illustrates the schematic diagram of the viewing angle control electrode of the display floater of the embodiment of the present invention.In the present embodiment, multiple viewing angle control electrodes 21 can be row arrangement, and each viewing angle control electrode 21 is formed along column direction arrangement by multiple " bow " font；Multiple viewing angle control electrodes 21 can also be row arrangement, and each viewing angle control electrode 21 is arranged in the row direction by multiple " bow " font and forms.
Preferably, the odd bits viewing angle control electrode in the plurality of viewing angle control electrode 21 is identical with the driving voltage polarity of the odd bits pixel electrode in the plurality of pixel electrode 11；Even bit viewing angle control electrode in the plurality of viewing angle control electrode 21 is identical with the driving voltage polarity of the even bit pixel electrode in the plurality of pixel electrode 11.
Preferably, the odd bits viewing angle control electrode in the plurality of viewing angle control electrode 21 and even bit viewing angle control electrode are staggered.
In the present embodiment, the bias voltage being applied on described viewing angle control electrode 21 includes having the alternating voltage of the first amplitude and has the alternating voltage of the second amplitude.Wherein, when applying the alternating voltage with the first amplitude on described viewing angle control electrode 21, display floater is operated in first mode；When applying the alternating voltage with the second amplitude on described viewing angle control electrode 21, display floater is operated in the second pattern.The polarity of the described alternating voltage with the first amplitude changes with the change in polarity of the driving voltage of the pixel electrode being applied to correspondence./ 2nd or identical with the change in polarity frequency of described driving voltage of the change in polarity frequency that change in polarity frequency is the driving voltage being applied to pixel electrode of the described alternating voltage with the second amplitude.Described first amplitude is more than described second amplitude.
Certainly, it should be readily apparent to one skilled in the art that liquid crystal indicator also includes such as alignment film, makes it keep other necessary parts such as support parts of preset distance etc. and back light, light guide plate, polarizing coating with first substrate for supporting second substrate.For the ease of understanding technical scheme, not shown in FIG. 1 with upper-part.
Fig. 3 A-3B illustrates the principle schematic of the display floater of the embodiment of the present invention.Wherein, Fig. 3 A is the schematic diagram of display panels under the second pattern and wide angle mode, and Fig. 3 B illustrates the schematic diagram of display panels under first mode and narrow field-of-view mode.
As shown in Figure 3A, time under wide angle mode, viewing angle control electrode 21 is applied in the alternating voltage of relatively low second amplitude.Second amplitude is close to zero, it is possible to for such as 0.05V.Thus, in liquid crystal layer 3 region, the electric field of horizontal direction that electric field is mainly between pixel electrode 11 and public electrode 12 to be formed, the liquid crystal molecule of orientation is zero or very little with the inclination angle of horizontal direction in the horizontal direction.Now, owing to liquid crystal molecule carries out overturning in face, therefore, whole display floater has wider visual angle.
As shown in Figure 3 B, time under narrow field-of-view mode, viewing angle control electrode 21 is applied in the voltage with the first higher amplitude, and described first amplitude can be such as 5V.Thus, between the pixel electrode 11 and public sight electrode 12 of viewing angle control electrode 21 and first substrate 1, the electric field in vertical direction can be formed.Liquid crystal molecule is subject to the electric field of vertical direction and the impact of horizontal direction electric field simultaneously, except carrying out overturning, in face, the polarization direction changing polarized light, also can overturn in the vertical direction, increases liquid crystal molecule inclination angle axially and between horizontal direction.This is further such that stravismus dark-state light leak, and contrast declines, and visual angle reduces.Thus, the visual angle constriction of whole liquid crystal indicator.
Thus, the embodiment of the present invention by arranging viewing angle control electrode on the second substrate (colored filter substrate) of display floater, and when needing narrow visual angle, viewing angle control electrode is applied voltage so that itself and be arranged on the electric field producing to be perpendicular to panel direction between the upper pixel electrode of first substrate (array base palte) and public electrode, liquid crystal molecule is made to produce change of pitch angle in the vertical direction, thus reaching stravismus dark-state light leak, contrast declines, visual angle reduces, the purpose that narrow visual angle shows.Thus, by regulating the voltage being applied to viewing angle control electrode, can realize switching between wide viewing angle and narrow field-of-view mode.
Fig. 4 A-4D is the change in polarity schematic diagram of the driving voltage of the pixel electrode of the display floater of the embodiment of the present invention.Display floater as shown in Figure 4 A and 4 B shown in FIG. adopts the mode of some reversion that pixel electrode is driven, " bow " word of viewing angle control electrode 21 arranges along column direction, namely, at the first frame, odd column positive voltage is driven, even column negative voltage driving, at next frame to odd column with by negative voltage driving, even column positive voltage drives.
Under this inversion mode, in the flrst mode the output of odd column viewing angle control electrode 21 is had the positive alternating voltage of the first amplitude, the output of dual sequence viewing angle control electrode 21 has the negative alternating voltage of the first amplitude, and the polarity of this alternating voltage changes with the change of the driving voltage polarity of pixel electrode.It is to say, the alternating voltage being applied to viewing angle control electrode 21 has the frequency identical with display floater refreshing frequency, this frequency can be such as 120Hz.Thus, no matter the pressure reduction between pixel electrode and viewing angle control electrode can be kept at odd column or even column all to keep the pressure reduction of identical polar, significantly will not change along with the reversion of pixel electrode driving voltage so that time under narrow field-of-view mode, the inclination angle of liquid crystal molecule remains unchanged.
Meanwhile, under the second mode, there is to the output of odd column viewing angle control electrode 21 the positive alternating voltage of the second amplitude, there is to the output of even column viewing angle control electrode 21 the negative alternating voltage of the second amplitude.The frequency of this alternating voltage can be identical with the refreshing frequency of display floater, or is its half.Due under the second mode, the voltage that viewing angle control electrode 21 still applies certain amplitude is to be full of the capacitor charge and discharge in order to prevent from keeping viewing angle control electrode 21, and therefore, the frequency of alternating voltage can be suitable lower than refreshing frequency, reduces system burden.
Meanwhile, it is no matter alternating voltage or the alternating voltage of the second pattern of first mode, can be formed as such as sine wave, square wave, triangular wave or sawtooth waveforms, as shown in figs. 5 a-5d.
Display floater as depicted in figs. 4 c and 4d adopts the mode of some reversion that pixel electrode is driven, " bow " word of viewing angle control electrode 21 is ranked in the row direction, namely, at the first frame, odd-numbered line positive voltage is driven, even number line negative voltage driving, at next frame to odd-numbered line with by negative voltage driving, even number line positive voltage drives.
Under this inversion mode, in the flrst mode the output of odd-numbered line viewing angle control electrode 21 is had the positive alternating voltage of the first amplitude, the output of antithesis several rows viewing angle control electrode 21 has the negative alternating voltage of the first amplitude, and the polarity of this alternating voltage changes with the change of the driving voltage polarity of pixel electrode.It is to say, the alternating voltage being applied to viewing angle control electrode 21 has the frequency identical with display floater refreshing frequency, this frequency can be such as 120Hz.Thus, no matter the pressure reduction between pixel electrode and viewing angle control electrode can be kept in odd-numbered line or even number line all to keep the pressure reduction of identical polar, significantly will not change along with the reversion of pixel electrode driving voltage so that time under narrow field-of-view mode, the inclination angle of liquid crystal molecule remains unchanged.
Meanwhile, under the second mode, there is to the output of odd-numbered line viewing angle control electrode 21 the positive alternating voltage of the second amplitude, there is to the output of even number line viewing angle control electrode 21 the negative alternating voltage of the second amplitude.The frequency of this alternating voltage can be identical with the refreshing frequency of display floater, or is its half.Due under the second mode, the voltage that viewing angle control electrode 21 still applies certain amplitude is to be full of the capacitor charge and discharge in order to prevent from keeping viewing angle control electrode 21, and therefore, the frequency of alternating voltage can be suitable lower than refreshing frequency, reduces system burden.
Meanwhile, it is no matter alternating voltage or the alternating voltage of the second pattern of first mode, can be formed as such as sine wave, square wave, triangular wave or sawtooth waveforms, as shown in figs. 5 a-5d.
Fig. 6 illustrates the schematic diagram of the display device that the embodiment of the present invention provides.As shown in Figure 6, described display device includes: driving chip 4 and display floater described above.
Wherein, described driving chip 4 is for applying, to described viewing angle control electrode 21, the alternating voltage with the first amplitude that polarity is different in the flrst mode；Under the second mode described viewing angle control electrode 21 is applied the voltage with the second amplitude that polarity is different.
Driving chip 4 is arranged at the region beyond display panels viewing area, for viewing angle control electrode 21 applies the voltage with the first amplitude in the flrst mode, viewing angle control electrode 21 applies the voltage with the second amplitude under the second mode.In embodiments of the present invention, first mode is narrow field-of-view mode, and the second pattern is wide angle mode, and the first amplitude is higher than the second amplitude.
Wherein, when driving voltage at pixel electrode 11 adopts some reversion, under first mode, driving chip 4 applies the positive alternating voltage with the first amplitude to odd column viewing angle control electrode (211,213,215 etc.), applies the negative alternating voltage with the first amplitude to even column viewing angle control electrode (212,214,216 etc.).
When driving voltage at pixel electrode 11 adopts some reversion, under first mode, driving chip 4 applies the positive alternating voltage with the first amplitude to odd-numbered line viewing angle control electrode (211,213,215 etc.), applies the negative alternating voltage with the first amplitude to even number line viewing angle control electrode (212,214,216 etc.).
Further, cause that the degree of regulation to light reduces to prevent direction of an electric field to be always equidirectional, it will usually keep degree of regulation by switching the mode of the driving voltage polarity of pixel electrode, and prevent neighbor from influencing each other.
Fig. 7 is the flow chart of the driving method of the liquid crystal indicator of the embodiment of the present invention.
As it is shown in fig. 7, the driving method of the embodiment of the present invention is for driving display floater as shown in Figure 1, described method includes:
Step 710, in the flrst mode described viewing angle control electrode is applied to have the voltage of the first amplitude.
Step 720, under the second mode described viewing angle control electrode is applied to have the voltage of the second amplitude.
Further, described in have the voltage of the first amplitude be alternating voltage, in the flrst mode, described in there is the first amplitude the polarity of alternating voltage change with the change of the driving voltage of the pixel electrode being applied to correspondence.
Further, the described voltage with the second amplitude is alternating voltage, under the second mode, under the second mode, have described in the alternating voltage of the second amplitude the change in polarity frequency that change in polarity frequency is the driving voltage being applied to pixel electrode 1/2nd or identical with the change in polarity frequency of described driving voltage.
Further, have described in the first amplitude alternating voltage and described in have the alternating voltage of the second amplitude be sine wave, square wave, triangular wave or sawtooth waveforms.
Further, there is the amplitude of alternating voltage of the first amplitude more than the amplitude of the described alternating voltage with the second amplitude described in.
Thus, when needing narrow visual angle, viewing angle control electrode is applied voltage so that itself and be arranged on the electric field producing to be perpendicular to panel direction between the upper pixel electrode of first substrate (array base palte) and public electrode, liquid crystal molecule is made to produce change of pitch angle in the vertical direction, thus reaching stravismus dark-state light leak, contrast declines, visual angle reduces, the purpose that narrow visual angle shows.Therefore, by regulating the voltage being applied to viewing angle control electrode, can realize switching between wide viewing angle and narrow field-of-view mode.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, are not intended to the specific embodiment that this invention is only described yet.Obviously, as described above, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is to explain principles of the invention and practical application better, so that skilled artisan can utilize the present invention and the amendment on basis of the present invention to use well.Protection scope of the present invention should be as the criterion with the scope that the claims in the present invention define.
Claims (10)
1. a display floater, including:
First substrate, is provided with multiple pixel electrode and multiple public electrode with array way；
Second substrate, is provided with multiple viewing angle control electrode with array way；
Liquid crystal layer, is arranged between described first substrate and described second substrate；
Each viewing angle control electrode is formed by the arrangement of multiple " bow " font；
Odd bits viewing angle control electrode in the plurality of viewing angle control electrode is respectively used to even bit viewing angle control electrode apply the bias voltage that polarity is different, to adjust the visual angle of described display floater.
2. display floater according to claim 1, wherein, odd bits viewing angle control electrode and even bit viewing angle control electrode in the plurality of viewing angle control electrode are staggered.
3. display floater according to claim 1, wherein, the odd bits viewing angle control electrode in the plurality of viewing angle control electrode is identical with the driving voltage polarity of the odd bits pixel electrode in the plurality of pixel electrode；Even bit viewing angle control electrode is identical with the driving voltage polarity of the even bit pixel electrode in the plurality of pixel electrode.
4. display floater according to claim 1, wherein, the plurality of viewing angle control electrode is in row row's column or row arrangement.
5. according to the arbitrary described display floater of claim 1-4, wherein, described bias voltage includes having the alternating voltage of the first amplitude and have the alternating voltage of the second amplitude, and wherein, the first amplitude is more than the second amplitude.
6. display floater according to claim 5, wherein, described in there is the first amplitude the polarity of alternating voltage change with the change in polarity of driving voltage of pixel electrode being applied to correspondence.
7. display floater according to claim 5, wherein, described in have the second amplitude alternating voltage the change in polarity frequency that change in polarity frequency is the driving voltage being applied to pixel electrode 1/2nd or identical with the change in polarity frequency of described driving voltage.
8. display floater according to claim 5, described in there is the alternating voltage of the first amplitude and the described alternating voltage with the second amplitude be sine wave, square wave, triangular wave or sawtooth waveforms.
9. a display device, including: driving chip and the display floater according to any one of claim 1-8,
Wherein, described driving chip is for applying, to described viewing angle control electrode, the alternating voltage with the first amplitude that polarity is different in the flrst mode；
Under the second mode described viewing angle control electrode is applied the voltage with the second amplitude that polarity is different.
10. a driving method for display device as claimed in claim 9, including:
In the flrst mode described viewing angle control electrode is applied the alternating voltage with the first amplitude that polarity is different；
Under the second mode described viewing angle control electrode is applied the alternating voltage with the second amplitude that polarity is different.
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| WO2018049559A1 (en) * | 2016-09-13 | 2018-03-22 | 昆山龙腾光电有限公司 | Liquid crystal display device with switchable viewing angle, and viewing angle switching 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 |
| CN109243394A (en) * | 2018-10-30 | 2019-01-18 | 昆山龙腾光电有限公司 | Narrow viewing angle display methods |
| TWI738417B (en) * | 2020-07-10 | 2021-09-01 | 友達光電股份有限公司 | Display device and driving method thereof |
| TWI756820B (en) * | 2020-09-09 | 2022-03-01 | 友達光電股份有限公司 | Display apparatus and method of driving the same |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |