CN108051936A - Display panel and its driving method, display device and its driving method - Google Patents
Display panel and its driving method, display device and its driving method Download PDFInfo
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- CN108051936A CN108051936A CN201810005260.6A CN201810005260A CN108051936A CN 108051936 A CN108051936 A CN 108051936A CN 201810005260 A CN201810005260 A CN 201810005260A CN 108051936 A CN108051936 A CN 108051936A
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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
- G02F1/1313—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 specially adapted for a particular application
-
- 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
-
- 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
Abstract
An embodiment of the present invention provides a kind of display panel and its driving method, display device and its driving methods.Display panel is included to the first substrate of box setting and the second substrate and the electrode layer and liquid crystal grating that are arranged between first substrate and the second substrate, and the electrode layer is used to adjust the screen periods of the liquid crystal grating.The driving method of display device includes：Determine user's eyes and the relative position of display panel；The light direction of each sub-pixel on display panel is determined according to the relative position；According to the light direction, the screen periods of each sub-pixel are adjusted.The light direction that the present invention realizes display panel is adjustable, not only simplifies design and processes flow, reduces design and producing cost, and is capable of providing optimal viewing quality and usage experience.
Description
Technical field
The present invention relates to display technology fields, and in particular to a kind of display panel and its driving method, display device and its
Driving method.
Background technology
At present, with virtual reality (Virtual Reality, VR) and augmented reality (Augmented Reality, AR)
The development of technology, transmitance and resolution ratio (Pixels Per Inch, PPI) to display panel are put forward higher requirements.It is existing
Liquid crystal display (Liquid Crystal Display, LCD) and Organic Light Emitting Diode (Organic Light Emitting
Display, OLED) etc. display technologies, can not accomplish the highly transparent of display panel.Meanwhile manufacture craft is limited by, it is existing
LCD and OLED is difficult to realize high PPI.Further, emergent ray is limited by for divergent rays, and existing LCD and OLED also are difficult to
Realize that the nearly eye of simple eye focusing is shown.
In order to realize that high transparency, high PPI and nearly eye are shown, the prior art proposes aobvious based on waveguide optical grating coupling technique
Show technology, which to light direction and is gone out light color and made choice by waveguide optical grating coupled structure, can will be shown
The light that panel is sent converges to a setting position, and realizes that highly transparent and high PPI are shown.
Through present inventor the study found that the existing display panel based on waveguide optical grating coupling technique, it is necessary to set in advance
The light direction of each position on display panel is counted, the grating week of each position on display panel is then designed and produced according to light direction
Phase, not only design and processes flow is complicated, but also production cost is higher.Simultaneously as the grating of each position is all in display device
Phase is fixed, therefore the light direction of display device is also fixed, needs constantly to adjust eye position in user's use
To adapt to light direction, user's viewing quality was both influenced, has also influenced user experience.
The content of the invention
The technical problem to be solved is that provide a kind of display panel and its driving method, display dress to the embodiment of the present invention
It puts and its driving method, to overcome, prior art design and processes flow is complicated, production cost is high, influences viewing quality and user
The defects of experience.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of display panel, including box is set
One substrate and the second substrate and the electrode layer and liquid crystal grating being arranged between first substrate and the second substrate, it is described
Electrode layer is used to adjust the screen periods of the liquid crystal grating.
Optionally, the electrode layer includes multiple electrodes being alternatively arranged and receive independent voltage signal respectively, by 2N+1
A electrode determines the liquid crystal grating that a screen periods are 2N*L, wherein, N is the positive integer more than or equal to 1, and L is wide for electrode
The sum of degree and electrode spacing.
Optionally, the electrode layer includes first electrode layer and the second electrode lay, and the first electrode layer includes interval and arranges
Multiple first electrodes of row, the second electrode lay include spaced multiple second electrodes, and each first electrode is located at two
Between a second electrode or each second electrode is located between two first electrodes.
Optionally, the first electrode layer and the second electrode lay are arranged in the first substrate, the first electrode layer with
Insulating layer is provided between the second electrode lay；Alternatively, the first electrode layer is arranged in the first substrate, the second electrode lay
It is arranged in the second substrate.
The embodiment of the present invention additionally provides a kind of display device, including foregoing display panel.
In order to solve the above-mentioned technical problem, the embodiment of the present invention additionally provides a kind of driving method of display panel, display
Panel is included to the first substrate of box setting and the second substrate and the electricity being arranged between first substrate and the second substrate
Pole layer and liquid crystal grating, the driving method include：
Apply voltage signal to the electrode layer, adjust the screen periods of the liquid crystal grating.
Optionally, the electrode layer includes multiple spaced electrodes；Apply voltage signal to the electrode layer, adjust
The screen periods of the liquid crystal grating, including：Each electrode into the electrode layer applies independent voltage signal, by 2N+1
A electrode determines the liquid crystal grating that a screen periods are 2N*L, wherein, N is the positive integer more than or equal to 1, and L is wide for electrode
The sum of degree and electrode spacing.
Optionally, each electrode into the electrode layer applies independent voltage signal, including：
Electrode 1, electrode 2 into the electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、
V2N+1Voltage signal, wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, V1>V2>…..>VN-1>VN；Alternatively, to described
Electrode 1, electrode 2 in electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、V2N+1Voltage signal,
Wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, VN>VN-1>…..>V2>V1。
In order to solve the above-mentioned technical problem, the embodiment of the present invention additionally provides a kind of driving method of display device, display
Device includes foregoing display panel, and the driving method includes：
Determine user's eyes and the relative position of display panel；
The light direction of each sub-pixel on display panel is determined according to the relative position；
According to the light direction, the screen periods of each sub-pixel are adjusted.
Optionally, according to the light direction, the screen periods of each sub-pixel are adjusted, including：
According to the light direction of each sub-pixel on display panel, the screen periods of each sub-pixel are determined；
According to the screen periods of each sub-pixel, apply voltage signal to the electrode layer of display panel, adjust per height picture
The screen periods of liquid crystal grating in element.
An embodiment of the present invention provides a kind of display panel and its driving method, display device and its driving method, liquid crystal
The screen periods of grating are determined by number of electrodes, and the screen periods of liquid crystal grating can be adjusted by adjusting number of electrodes, are realized
The light direction of display panel is adjustable.The flow of complicated making screen periods is not required in the embodiment of the present invention, simplifies and sets
Meter and technological process shorten and design and produce the time, reduce design and producing cost.In user in use, user
As long as adjusting and suitably wearing position, system can adjust the screen periods of each position on display panel according to eye position,
So that light direction is directed toward human eye, optimal viewing quality and usage experience are capable of providing.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.Other features and advantages of the present invention will illustrate in subsequent specification embodiment, also, partly implement from specification
It becomes apparent in example or is understood by implementing the present invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is realized and obtained in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this
The embodiment of application technical solution for explaining the present invention together, does not form the limitation to technical solution of the present invention.Attached drawing
In the shapes and sizes of each component do not reflect actual proportions, purpose is schematically illustrate present invention.
Fig. 1 is the principle schematic of waveguide optical grating coupling technique；
Fig. 2 is the structure diagram of display panel of the embodiment of the present invention；
Fig. 3 a~Fig. 3 d are the schematic diagram that the embodiment of the present invention adjusts liquid crystal grating screen periods；
Fig. 4 is that the embodiment of the present invention forms the schematic diagram that gray scale is shown；
Fig. 5 a~Fig. 5 c are the structure diagram of RGB sub-pixel liquid crystal gratings of the embodiment of the present invention；
Fig. 6 is the structure diagram of display panel first embodiment of the present invention；
Fig. 7 is the structure diagram of display panel second embodiment of the present invention；
Fig. 8 is the schematic diagram of display device electrode drive of the present invention.
Reference sign:
10-the first substrate；20-the second substrate；30-ducting layer；
40-electrode layer；50-liquid crystal grating；41-first electrode layer；
42-insulating layer；43-the second electrode lay；4A-first electrode；
4B-second electrode.
Specific embodiment
The specific embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the present invention, but it is not limited to the scope of the present invention.It should be noted that in the case where there is no conflict, the application
In embodiment and embodiment in feature can mutually be combined.
Fig. 1 is the principle schematic of waveguide optical grating coupling technique.In optic communication and integrated optics, fiber waveguide is a kind of
More commonly used basic component.In order to which light beam is efficiently coupled into fiber waveguide or light beam is coupled out from fiber waveguide,
A kind of more commonly used method is exactly to use grating coupler.When incident beam or outgoing beam meet formula：βq=βm–qK(q
=0, ± 1, ± 2 ...) during non-colinear position relation, incident light can excite m ranks guided mode or m rank guided modes in the waveguide
It is coupled out in given directions.Wherein, βmFor the propagation constant of m rank guided modes, βm=k0Nm, NmFor effective refraction of m rank guided modes
Rate, K are grating vector, K=2 π/Λ, k0For the wave number of light in a vacuum, k0=2 π λ, Λ are screen periods.If incident light
(or emergent light) wave vector direction and vertical direction angle are θi, then above-mentioned non-colinear position relation can be further represented as：
k0ncsinθi=k0Nm- q2 π/Λ (q=0, ± 1, ± 2 ...)
If optical waveguide substrates are transparent medium, input and output coupling is carried out from substrate one side, non-colinear position relation can table at this time
It is shown as：
k0nssinθi=k0Nm- q2 π/Λ (q=0, ± 1, ± 2 ...)
Wherein, ncFor the refractive index of air, nsFor the refractive index of substrate, nfFor the refractive index of waveguide.
For the display panel based on waveguide optical grating coupling technique, multiple grating coupling structures are arranged on ducting layer, from
In the light propagated in ducting layer, the given outgoing of color light in given directions, one or more grating coupling knots are selected
Structure corresponds to a sub-pixel in display panel, and exit positions, diffraction grating formula can be determined according to diffraction grating formula
For：
nisinθi-ndsinθd=m* λ/Λ (m=0, ± 1, ± 2 ...)
Wherein, niAnd θiRespectively incident spatial refractive index and incident angle, m are diffraction time, and Λ is screen periods, and λ is
Lambda1-wavelength, θdFor the angle between light direction and panel plane normal, ndFor on grating coupling structure each layer it is equivalent
Refractive index.In the design of existing AR/VR application scenarios, light direction is to carry out careful design by the optical simulation software of specialty,
It is fixed to set the light direction of the sub-pixel of a certain position in display panel, by sub-pixel position and eyes design position two
The relativeness of person determines that it is fixed to think eye position, thus sets the light direction θ in diffraction grating formuladIt is
It is fixed.Therefore, by designing grating period A, you can realize the light of given color (wavelength X) in given light direction θd
Upper outgoing.After the screen periods that each position of display panel is designed according to light direction, prior art generally use coherent light
The method of interference uses laser to irradiate the sub-pixel of display panel different position respectively to form different screen periods.Example
Such as：Use the red laser that red laser is sent red to be formed by exposing the corresponding regions of grating irradiation red sub-pixel R
Screen periods in sub-pixels R irradiate green sub-pixels G using the green laser that green laser is sent by exposing grating
Corresponding region is passed through with the blue laser for forming the screen periods in green sub-pixels G and being sent using blue laser
Exposure grating irradiates the corresponding regions of blue subpixels B to form the screen periods in blue subpixels B.Due to different colours
The wavelength for the exposure light that laser is sent is different, therefore the number of the liquid crystal grating formed in the sub-pixel of different colours is not
Together, so that the screen periods formed in the sub-pixel of different colours are different.
It can be seen that existing display panel light direction fixation is because pre-setting the fixed grating of each sub-pixel
Cycle so that each sub-pixel can only select given color light to be emitted on given light direction.Due to needing using specialty
Optical simulation software carry out light direction design, and need using laser illumination mode prepare each sub-pixel grating week
Phase, therefore design and processes flow is complicated, the production time is long, and production cost is higher.Since light direction is fixed, thus requirement makes
User's eyes must be watched in design position, and if user's eyes off-design position, sub-pixel light direction will be inclined
From human eye, the image quality that human eye is seen can be poor.In actual use, the user due to the use of VR devices is varied,
Not only different users wear position difference, but also the eye position of different users is there is also difference, hence some
User is difficult in adapt to the design position.Some users wear position and eye position using the constantly adjustment of preceding needs, ability
Human eye is made to be directed at the light direction, sees the picture of display panel clearly, and also needs to strictly keep the position adjusted in use
It puts.Obviously, this adjustment mode has very big uncertainty, and is difficult that human eye is made to be directed at light direction completely, has both influenced to use
The quality of picture is watched at family, also influences the experience used the product by the user.
In order to overcome, existing display panel design and processes flow is complicated, production cost is high, influences viewing quality and user
The defects of experience, an embodiment of the present invention provides a kind of display panels.Display panel includes the first substrate set to box and the
Two substrates and the electrode layer and liquid crystal grating being arranged between the first substrate and the second substrate, electrode layer are used to adjust liquid crystal
The screen periods of grating.Wherein, electrode layer includes multiple electrodes being alternatively arranged and receive independent voltage signal respectively, by 2N+1
A electrode determines the liquid crystal grating that a screen periods are 2N*L, wherein, N is the positive integer more than or equal to 1, and L is wide for electrode
The sum of degree and electrode spacing.As a kind of realization method, Fig. 2 is the structure diagram of display panel of the embodiment of the present invention.Such as Fig. 2
Shown, the agent structure of display panel includes to the first substrate 10 of box setting and the second substrate 20 and is arranged on the first base
Ducting layer 30, electrode layer 40 and liquid crystal grating 50 between 10 and second substrate 20 of bottom, electrode layer 40 are used to adjust liquid crystal grating
50 screen periods, liquid crystal grating 50 are coupled out light for controlling from ducting layer 30, and control and wavelength is set in the light
Light is with direction initialization and setting gray scale light extraction.Wherein, ducting layer 30 is arranged on the first substrate 10 towards the table of the second substrate 20
On face, electrode layer 40 is arranged on ducting layer 30 towards on the surface of the second substrate 20, liquid crystal grating 50 be arranged on electrode layer 40 with
Between second substrate 20.
In the embodiment of the present invention, for carrying out fiber waveguide, refractive index connects ducting layer 30 at least above with ducting layer 30
Touch the refractive index of film layer.In order to which ducting layer is allow to carry out fiber waveguide as efficiently as possible, it is preferable that the refractive index of ducting layer is removed
It is more than and is in contact with ducting layer outside the refractive index of film layer, also greater than the refractive index of other each layer structures, i.e., in display panel
In, the refractive index of ducting layer is maximum.The material of ducting layer be transparent material, such as Si3N4Deng, but not limited to this.It is being embodied
When, the refractive index of ducting layer is the higher the better, and the thickness range of ducting layer includes but not limited to 100nm~10 μm.Preferably, waveguide
The thickness of layer is 100~200nm, in order to control of the grating layer to light light direction and wavelength.Ducting layer can be single mode
Waveguide, i.e. thickness are thin enough, such as 100nm, in order to control of the grating to light direction and color, but not limited to this.Work as side
It is relatively good or can be to when being coupled into that pattern control effectively in ducting layer to enter the collimation of formula collimated back, Ke Yishi
When relaxing the requirement to waveguide layer thickness, hundreds of nanometers even several microns of thickness can be selected.In addition, the first substrate and electrode
Layer also acts as the effect of assistant waveguide.Since the thickness of the first substrate and electrode layer is more than the thickness of ducting layer, side entering type is accurate
The overwhelming majority of the light emitted line of straight backlight will be coupled into the first substrate and electrode layer.In view of side entering type collimated back institute
The light of transmitting can not possibly be collimated definitely, always have the smaller angle of divergence, the light being coupled into the first substrate and electrode layer
There can be smaller dispersion angle.Since the first substrate and the refractive index of electrode layer are less than the refractive index of ducting layer, the first substrate
It cannot be fettered with the light in electrode layer, but be continuously injected into ducting layer well, supplement ducting layer
In waveguide mode because propagate or grating couple caused by attenuation.
In the embodiment of the present invention, electrode layer 40 includes multiple electrodes equidistantly arranged successively, and each electrode receives respectively
Independent voltage signal, it is corresponding that the electric field that several electrodes are formed so that neighbouring liquid crystal molecule is generated according to electric field distribution
Deflection forms the liquid crystal grating with different screen periods.Liquid crystal grating control is coupled out light from ducting layer, and controls and be somebody's turn to do
The light of wavelength is set in light with direction initialization and setting gray scale light extraction.That is, the embodiment of the present invention is by number of electrodes
It measures to determine the screen periods of liquid crystal grating, the screen periods of liquid crystal grating can be adjusted by adjusting number of electrodes.
Fig. 3 a~Fig. 3 d are the schematic diagram that the embodiment of the present invention adjusts liquid crystal grating screen periods.Such as Fig. 3 a~Fig. 3 b institutes
Show, be provided with liquid crystal layer 4 between the first substrate 1 and the second substrate 2 that are oppositely arranged, electrode layer is provided in the first substrate 1.Electricity
Pole layer includes regularly arranged multiple electrodes, is divided into first electrode group and second electrode group, and each electrode group includes 2 electrodes,
First electrode group includes electrode 3a and electrode 3b, and second electrode group includes electrode 3c and electrode 3d.As shown in Figure 3a, control applies
Voltage in electrode group on 2 electrodes makes the voltage on 2 electrodes equal.Due to there is no voltage between 2 electrodes
Difference, the liquid crystal molecule in liquid crystal layer 4 do not deflect.At this point, liquid crystal molecule is a fixed refractive index in liquid crystal layer 4.Such as figure
Shown in 3b, in first electrode group, voltage V1 is applied to electrode 3a, voltage V0 is applied to electrode 3b；It is right in second electrode group
Electrode 3c applies voltage V0, applies voltage V1 to electrode 3d.Wherein, V1-V0=Δs V1.Due to 2 electrodes in first electrode group
Between have voltage difference delta V1, therefore above two electrodes of first electrode group corresponding region liquid crystal molecule in electric field
It deflects under effect, turns pattern area so as to form right avertence.Due to having voltage difference-Δ between 2 electrodes in second electrode group
V1, therefore the liquid crystal molecule in corresponding region deflects under the action of electric field above two electrodes of second electrode group,
Turn pattern area so as to form left avertence.Since electrode 3b is identical with the voltage of electrode 3c, between 2 electrode groups corresponding to top
The liquid crystal molecule in region does not deflect, so as to form non-deflection pattern area.Due to the voltage difference between electrode in 2 electrode groups
On the contrary, therefore the liquid crystal molecule deflection direction of 2 electrode groups is opposite.At this point, liquid crystal molecule turns there are right avertence, is left in liquid crystal layer 4
It deflects and non deflected, there is certain refringence between liquid crystal molecule.It should be noted that the deflection in attached drawing is only one
Kind deflection schematically illustrates, and liquid crystal molecule deflection can be in the plane parallel to substrate.
As shown in Figure 3c, liquid crystal layer 4, the first substrate 1 are provided between the first substrate 1 and the second substrate 2 that are oppositely arranged
On be provided with electrode layer, electrode layer includes regularly arranged multiple electrodes, and 3 electrodes are an electrode group, i.e., each electrode group
Including electrode 3a, electrode 3b and electrode 3c.Control is applied to the voltage in electrode group on 3 electrodes, makes the voltage on 3 electrodes
It is equal.Due to not having voltage difference between 3 electrodes, the liquid crystal molecule in liquid crystal layer 4 does not deflect.At this point, liquid crystal layer 4
Middle liquid crystal molecule is a fixed refractive index.In electrode group, voltage V1 is applied to electrode 3a, voltage V0 is applied to electrode 3b,
Voltage V1, V1-V0=Δ V1 is applied to electrode 3c.There is voltage difference delta V1, between two electrodes between electrode 3a and electrode 3b
Right avertence occurs under the action of electric field and turns for the liquid crystal molecule in corresponding region, has voltage difference-Δ between electrode 3b and electrode 3c
V1, the liquid crystal molecule in corresponding region left avertence occurs under the action of electric field turns between two electrodes.Due to corresponding to electrode 3a
The electric field in region influenced by electrode 3c voltages it is smaller, therefore the region liquid crystal molecule deflection it is larger.Similarly, due to electrode 3c
The electric field in corresponding region influenced by electrode 3a voltages it is smaller, therefore the region liquid crystal molecule deflection it is larger.Due to electrode
The electric field in region corresponding to 3b is influenced simultaneously by electrode 3a voltages and electrode 3c voltages, therefore the liquid crystal molecule deflection in the region
Smaller (or not deflecting).As a result, similar convex lens is formed with the liquid crystal molecule in region corresponding to electrode 3c in electrode 3a, electrode 3b
The liquid crystal grating of effect, liquid crystal molecule has a different deflection angles in liquid crystal grating, has in liquid crystal grating between liquid crystal molecule
Certain refringence.
As shown in Figure 3d, liquid crystal layer 4, the first substrate 1 are provided between the first substrate 1 and the second substrate 2 that are oppositely arranged
On be provided with electrode layer, electrode layer includes regularly arranged multiple electrodes, and 5 electrodes are an electrode group, i.e., each electrode group
Including electrode 3a, electrode 3b, electrode 3c, electrode 3d and electrode 3e.Voltage V2 is applied to electrode 3a, voltage is applied to electrode 3b
V1 applies electrode 3c voltage V0, and electrode 3d applies voltage V1, applies voltage V2, V2 ＞ V1 ＞ V0, V2-V1=to electrode 3e
Δ V2, V1-V0=Δ V1.Same aforementioned principles, the liquid crystal molecule in corresponding region is in the work of electric field between electrode 3a and electrode 3b
Turned with lower generation right avertence, right avertence occurs under the action of electric field for the liquid crystal molecule in corresponding region between electrode 3b and electrode 3c
Turn, but deflection angle is less than the former.The liquid crystal molecule in corresponding region is sent out under the action of electric field between electrode 3d and electrode 3e
Raw left avertence turns, and left avertence turn occurs under the action of electric field for the liquid crystal molecule in corresponding region between electrode 3c and electrode 3d, but partially
Gyration is less than the former.The liquid crystal molecule deflection in region corresponding to electrode 3c is minimum (or not deflecting).As a result, in electrode 3a, electricity
Pole 3b, electrode 3c, electrode 3d and the liquid crystal molecule in region corresponding to electrode 3e form the liquid crystal grating of similar convex lens effect, liquid
Liquid crystal molecule has different deflection angles in brilliant grating, has certain refringence in liquid crystal grating between liquid crystal molecule.
Fig. 4 is that the embodiment of the present invention forms the schematic diagram that gray scale is shown.The refractive index of liquid crystal molecule is [no, ne], and no is
The ordinary index of refraction of liquid crystal molecule, ne are the extra-ordinary index of refraction of liquid crystal molecule, and applying voltage signal by electrode layer 40 acts on
The electric field of liquid crystal molecule can deflect liquid crystal molecule, realize that the refractive index of liquid crystal molecule changes between no and ne.With at the beginning of liquid crystal
Exemplified by the horizontal alignment that begins, the refractive index of liquid crystal molecule is no during original state, and the refractive index for applying liquid crystal molecule after voltage is
Neff, wherein neff are determined by following formula：
During liquid crystal molecule deflection angle theta=0, neff=no, during liquid crystal molecule deflection angle theta=90, neff=ne.Such as Fig. 4 institutes
Show, still by taking liquid crystal initial level orientation as an example, during original state, during each electrode no applied voltage of electrode layer 40, liquid crystal point
The refractive index of son is no, therefore liquid crystal molecule is a fixed refractive index no.The fixed refraction of liquid crystal layer causes grating to couple
Effect be blanked, the light in ducting layer 30 is limited in ducting layer 30, and without beam projecting, this is dark-state, i.e. L0 ash
Rank.Apply the voltage difference that voltage and each electrode apply to each electrode of electrode layer 40, liquid crystal molecule is according to each electrode
The electric field that voltage is formed carries out corresponding deflection.Since the voltage of each electrode is different, the electricity of each electrode region
Field intensity is different, and the deflection of the liquid crystal molecule of each electrode region is different, the larger liquid crystal molecule of deflection angle and deflection
Between the liquid crystal molecule of angle smaller (or not deflecting) there is certain refringence, form the liquid crystal light with refringence
Grid 50.The refringence of liquid crystal grating 50 causes the light in ducting layer 30 to be coupled out, according to front diffraction grating formula,
The light for meeting the relation that matches is coupled out, and coupling efficiency is related with refractive index difference, and difference is bigger, grating coupled work
With more apparent, coupling efficiency is bigger.When refractive index difference is ne-no, refringence is maximum, and the light for being coupled out is most
More, this is illuminated state, i.e. L255 grayscale.It is intermediate gray scale states when refractive index difference is between 0 and ne-no.It needs to illustrate
, so-called grayscale be by it is most bright with it is most dark between brightness change divide into several pieces, grayscale is represented by most secretly to most bright
Between different brightness stratum level, the picture effect that level is more to be presented is finer and smoother, can show 256 brightness layers
Secondary grayscale is 256 grayscale, and 256 grayscale may include 256 grades of grayscale from L0 grayscale to L255 grayscale.
By preceding description as can be seen that since liquid crystal grating is determined by number of electrodes, by adjusting number of electrodes
The size of i.e. adjustable liquid crystal grating adjusts the screen periods of liquid crystal grating.In Fig. 3 c, 3 electrodes determine a liquid crystal light
Grid, grating period A=2*L, L is the sum of electrode width and electrode spacing, and in Fig. 3 d, 5 electrodes determine a liquid crystal light
Grid, grating period A=4*L.For the liquid crystal grating that 2N+1 electrode determines, grating period A=2N*L, N be more than
Or the positive integer equal to 1, L are the sum of electrode width and electrode spacing.In the case of definite electrode width and spacing, number of electrodes
More, the cycle is bigger.During actual implementation, can by the design of electrode structure and width, on the premise of technological limits allows,
Make the spacing between electrode width and electrode as small as possible, to realize that the screen periods of liquid crystal grating are continuously adjustable.
By preceding description it can also be seen that since the voltage difference between the deflection angle and electrode of liquid crystal molecule is related,
The larger region of voltage difference, the deflection angle of liquid crystal molecule is bigger, the smaller region of voltage difference, the deflection angle of liquid crystal molecule compared with
It is small, therefore by adjusting the voltage difference between each electrode, the refractive index difference of liquid crystal molecule in liquid crystal grating can be adjusted.Due to
The coupling luminous coupling efficiency of ducting layer changes according to the variation of the refractive index difference of liquid crystal grating, therefore by adjusting each electricity
The voltage of pole, and then the coupling luminous coupling efficiency of ducting layer can be adjusted.Liquid crystal grating or liquid crystal lens are according to application
The difference of voltage makes in liquid crystal layer liquid crystal molecule have different deflection angles, to realize to the refractive index of incident polarized light not
Together, therefore the formation of liquid crystal grating is related with the polarization direction of incident light.For example, the polarised light shaken in face, for forming water
The electrode structure of ordinary telegram field, when long axis of liquid crystal molecule direction is identical with incident light polarization direction, the voltage of target is less than two
The voltage of lateral electrode, when long axis of liquid crystal molecule direction arranges in face, the voltage of target is more than the electricity of two lateral electrodes
Pressure；For vertical electric field structure, liquid crystal molecule is vertical orientated, and the voltage of target is more than the voltage of two lateral electrodes.
Fig. 5 a~Fig. 5 c are the structure diagram of RGB sub-pixel liquid crystal gratings of the embodiment of the present invention, with liquid under horizontal component of electric field
Brilliant molecule initial level is orientated to illustrate.Assuming that a liquid crystal grating is by 2N+1 electrode (N is the positive integer more than or equal to 1)
Determine, according to serial number from left to right successively be referred to as electrode 1, electrode 2 ... .., electrode 2N+1, what each electrode was applied in
Voltage signal is respectively V1、V2、…..、V2N+1, in order to which the 2N+1 electrode is made to form a liquid crystal grating, it is desirable that V1=V2N+1,
V2=V2N... .., VN-1=VN+1, V1>V2>…..>VN-1>VN, grating period A=2N*L of liquid crystal grating, L are electrode width
The sum of with electrode spacing.After this 2N+1 electrode is applied in corresponding voltage signal respectively, due between electrode there are voltage difference,
Therefore the liquid crystal molecule of electrode corresponding region is by the different deflection of the degree that generates, the liquid of high voltage difference region between electrode
Brilliant molecule deflection is larger, and the liquid crystal molecule deflection of low voltage region is smaller between electrode so that 2N+1 electrodes location
The liquid crystal molecule in domain forms the liquid crystal grating of similar convex lens structures.As shown in Figure 5 a, for B sub-pixels, N is set to be equal to 1, i.e.,
Liquid crystal grating in B sub-pixels determines by 3 electrodes, grating period A=2*L of liquid crystal grating, V1=V3>V3, and adjacent 2
Liquid crystal grating can be with common electrode 3, i.e., the electrode 3 of first liquid crystal grating is the electrode 1 of next liquid crystal grating, and voltage phase
Together.The screen periods thereby determined that can cause from the light that ducting layer is coupled out pass through B sub-pixels liquid crystal grating when, only
Specific wavelength is blue ray in light and the light extraction with specific direction is entered in human eye, and other directions, other wavelength
Light will not enter in human eye so that human eye receives the blue ray of B sub-pixels outgoing.As shown in Figure 5 b, for G
Sub-pixel, setting N, the liquid crystal grating in G sub-pixel is determined by 5 electrodes, grating period A=4*L of liquid crystal grating equal to 2,
V1=V5>V2=V4>V3, adjacent 2 liquid crystal gratings can be with common electrode 5, i.e., the electrode 5 of first liquid crystal grating is next liquid
The electrode 1 of brilliant grating, and voltage is identical.The screen periods thereby determined that can cause the light being coupled out from ducting layer to pass through G
During the liquid crystal grating of sub-pixel, specific wavelength is green light only in light and the light extraction with specific direction enters human eye
In, and other directions, the light of other wavelength will not be entered in human eye, so that human eye receives the green of G sub-pixel outgoing
Coloured light line.As shown in Figure 5 c, for R sub-pixels, the liquid crystal grating that N is equal in 3, R sub-pixels is set to be determined by 7 electrodes, liquid
Grating period A=6*L of brilliant grating, V1=V7>V2=V6>V3=V5>V4, adjacent 2 liquid crystal gratings can be with common electrode 7, i.e.,
The electrode 7 of first liquid crystal grating is the electrode 1 of next liquid crystal grating, and voltage is identical.The screen periods thereby determined that can
So that from the light that ducting layer is coupled out pass through R sub-pixels liquid crystal grating when, only in light specific wavelength be red light
It line and is entered with the light extraction of specific direction in human eye, and other directions, the light of other wavelength will not be entered in human eye,
So that human eye receives the red light of R sub-pixels outgoing.In this way, RGB sub-pixels can be adjusted to have different gratings
Cycle makes the light of different subpixel be directed to human eye.Similarly, different pixels position can also be adjusted to have on display panel
Different screen periods make the light of different position on display panel be directed to human eye.
In the embodiment of the present invention, the electrode in electrode layer can be the multiple electrodes item or array being arranged in order
The multiple electrodes block of arrangement, electrode layer can be single layer structure or bilayer or multilayer structure, for double-layer structure, two
A electrode layer can be all disposed in the first substrate, formed horizontal component of electric field, can also be separately positioned on the first substrate and the second base
On bottom, vertical electric field is formed.
An embodiment of the present invention provides a kind of display panel, the screen periods of liquid crystal grating are determined by number of electrodes, are passed through
The screen periods of liquid crystal grating can be adjusted by adjusting number of electrodes, and the light direction for realizing display panel is adjustable.On the one hand, exist
In display panel design, the optical simulation software of specialty need not be used to carry out light direction design, in display panel preparation,
The flow of making screen periods that need not be complicated, simplifies design and processes flow, shortens and design and produce the time, reduce
Design and producing costs.On the other hand, as long as in user in use, user, which adjusts, suitably wears position, system
The screen periods of each position on display panel can be adjusted according to eye position so that light direction is directed toward human eye, provides optimal
Viewing quality and usage experience.
The display panel of the embodiment of the present invention, due to being coupled out using waveguide optical grating coupling technique control light from ducting layer
Light, and control and the light of wavelength is set from the coupling luminous light of ducting layer with direction initialization and sets gray scale light extraction, therefore
Without setting polarizer and colored color blocking in display panel, all components of display panel are formed using high transmittance material,
So as to improving the transmitance of display panel, realize that high transparency is shown, can be applied to transparence display product, Virtual Reality or
In augmented reality AR.Since without setting polarizer in display panel, there is no need to require the phase delay of liquid crystal layer entirety
Amount so that liquid crystal cell thickness can be relatively thin, so as to improve the response time of liquid crystal.Since the screen periods of liquid crystal grating are smaller,
In several microns or hundreds of nanometers, thus the size of sub-pixel can do it is smaller so that display panel can realize height
PPI is shown.Since grating coupling is to the selection index system of light direction, will selectively can be converged for the light of display
To near human eye, be advantageously implemented can the nearly eye of simple eye focusing show, it might even be possible to realize simple eye nearly eye 3D display.
Below by the technical solution of specific embodiment the present invention will be described in detail embodiment.
First embodiment
Fig. 6 is the structure diagram of display panel first embodiment of the present invention.As shown in fig. 6, the main body knot of display panel
Structure includes to the first substrate 10 of box setting and the second substrate 20 and is arranged between the first substrate 10 and the second substrate 20
Ducting layer 30, electrode layer and liquid crystal grating 50, electrode layer are used to adjust the screen periods of liquid crystal grating 50, and liquid crystal grating 50 is used for
Control is coupled out light from ducting layer 30, and the light of setting wavelength in the light is controlled to go out with direction initialization and setting gray scale
Light.Wherein, ducting layer 30 is arranged on the first substrate 10 towards on the surface of the second substrate 20, and electrode layer is arranged on 30 court of ducting layer
On the surface of the second substrate 20, liquid crystal grating 50 is arranged between electrode layer and the second substrate 20.In the present embodiment, electrode layer
Including folding the first electrode layer 41, insulating layer 42 and the second electrode lay 43 that set successively, first electrode layer 41 is arranged on ducting layer 30
On, insulating layer 42 covers first electrode layer 41, and the second electrode lay 43 is arranged on insulating layer 42.First electrode layer 41 is included successively
The multiple first electrode 4A equidistantly arranged, the second electrode lay 43 include the multiple second electrode 4B equidistantly arranged successively, the
Each first electrode 4A is located between two second electrode 4B or each second electrode in the second electrode lay 43 in one electrode layer 41
4B is located between two first electrode 4A, and N number of first electrode 4A and N+1 second electrode 4B determine a liquid crystal grating, and N is big
In or equal to 1 positive integer.After the multiple electrodes for determining each liquid crystal grating 50 are applied in independent voltage signal respectively, by
There are voltage difference between electrode, therefore the liquid crystal molecule in liquid crystal grating deflects the different deflection of the degree that generates larger
There is certain refringence between liquid crystal molecule and the smaller liquid crystal molecule of deflection so that liquid crystal grating is coupled from ducting layer 30
Go out light, and control and the light of wavelength is set in the light with direction initialization and setting gray scale light extraction.
In the present embodiment, display panel includes multiple sub-pixels, and each sub-pixel includes at least two liquid crystal grating.Sub- picture
Element can be red sub-pixel, green sub-pixels or blue subpixels, and display panel includes multiple red sons of array arrangement
Pixel, green sub-pixels and blue subpixels, tri- sub-pixels of RGB are adjusted to have different screen periods.It is for example, red
Liquid crystal grating in sub-pixel is determined by 7 electrodes, is 3 first electrode 4A and 4 second electrode 4B respectively.Green sub-pixels
In liquid crystal grating determined by 5 electrodes, be 2 first electrode 4A and 3 second electrode 4B respectively.Liquid in blue subpixels
Brilliant grating is determined by 3 electrodes, is 1 first electrode 4A and 2 second electrode 4B respectively.During actual implementation, first electrode layer
It can be adjusted according to actual needs with the position of the second electrode lay, if first electrode layer is arranged on the second electrode lay,
Or other film layers etc. are set between first electrode layer and the second electrode lay.It, can also it is possible to further set multiple electrodes layer
The present embodiment first electrode layer and the second electrode lay are merged into an electrode layer.
The present embodiment is the electrode structure to form horizontal component of electric field, suitable for optical axis the putting down parallel to basal surface of liquid crystal molecule
The display pattern of face intrinsic deflection.Under the display pattern, display panel, which further includes, is separately positioned on the first substrate and/or the second base
Both alignment layers on bottom, both alignment layers control the initial orientation of liquid crystal molecule, make liquid crystal molecule inceptive direction parallel to the first substrate and
Second substrate.In addition, display panel can also include the black barrier bed positioned at ducting layer side or reflecting layer, black barrier bed
For absorbing the light being emitted from ducting layer side, reflecting layer is used to reflect the light being emitted from ducting layer side.Into
One step, display panel can also include being arranged on the first substrate away from the protective film of one side surface of the second substrate and set
Deviate from the protective film of one side surface of the first substrate in the second substrate, realize the protection to display panel.Protective film can be to attach
Film layer on the surface, or coat coating on the surface.
The electrode structure of horizontal component of electric field is formed for the present embodiment, is also applied for the optical axis of liquid crystal molecule perpendicular to basal surface
Plane intrinsic deflection display pattern.Under the display pattern, in the electrode for determining a liquid crystal grating, voltage relationship is：VN-1
=VN+1, VN>VN-1>…..>V2>V1, which is not described herein again.
In the present embodiment, the material of the first substrate and the second substrate can be glass or resin, thickness for 0.1mm~
2mm, parameter determine by specific product design or process conditions, and require its upper and lower surface have preferable flatness and
The depth of parallelism.In in actual implementation, the first substrate and the second substrate can also be made of other materials, not limited herein.
Transparent conductive material, such as tin indium oxide ITO or indium zinc oxide IZO etc. may be employed in electrode layer, and the thickness of electrode layer is 50nm
~1000nm is preferably 100~200nm.Alternatively, electrode layer can also select relatively thin metal material, such as gold Au or silver Ag- magnesium
Mg alloys etc., thickness are 30nm~200nm.The thickness of liquid crystal layer is hundreds of nanometers to several microns, and general control is at 1 μm or so.
Second embodiment
Fig. 7 is the structure diagram of display panel second embodiment of the present invention.As shown in fig. 7, the main body knot of display panel
Structure includes to the first substrate 10 of box setting and the second substrate 20 and is arranged between the first substrate 10 and the second substrate 20
Ducting layer 30, electrode layer and liquid crystal grating 50, electrode layer are used to adjust the screen periods of liquid crystal grating 50, and liquid crystal grating 50 is used for
Control is coupled out light from ducting layer 30, and the light of setting wavelength in the light is controlled to go out with direction initialization and setting gray scale
Light.Wherein, ducting layer 30 is arranged on the first substrate 10 towards on the surface of the second substrate 20, and electrode layer includes being arranged on ducting layer
30 towards the first electrode layer 41 on the second substrate 20 surfaces and are arranged on the second substrate 20 towards on 10 surface of the first substrate
The second electrode lay 43, liquid crystal grating 50 are arranged between first electrode layer 41 and the second electrode lay 43.First electrode layer 41 includes
The multiple first electrode 4A equidistantly arranged successively, the second electrode lay 43 include the multiple second electrodes equidistantly arranged successively
4B, each first electrode 4A is located between two second electrode 4B or each the in the second electrode lay 43 in first electrode layer 41
Two electrode 4B are located between two first electrode 4A, and N number of first electrode 4A and N+1 second electrode 4B determine a liquid crystal light
Grid, N are the positive integer more than or equal to 1.When the multiple electrodes in definite each liquid crystal grating 50 are applied in independent electricity respectively
After pressing signal, due between electrode there are voltage difference, liquid crystal molecule in liquid crystal grating by the different deflection of the degree that generates,
Deflecting between larger liquid crystal molecule and the smaller liquid crystal molecule of deflection has certain refringence so that liquid crystal grating is from waveguide
Light is coupled out in layer 30, and controls and the light of wavelength is set in the light with direction initialization and setting gray scale light extraction.
In the present embodiment, for each optical grating construction, each first electrode 4A and second electrode 4B receive independent respectively
Voltage signal, the liquid crystal molecule of sub-pixel where making the optical grating construction generate corresponding deflection according to electric field distribution, form liquid crystal
Grating.Assuming that according to serial number from left to right, the 2N+1 electrode that sub-pixel includes is referred to as electrode 1, electrode successively
2nd ... .., electrode 2N+1, wherein, electrode 1, electrode 3 ... .., electrode 2N+1 be first electrode 4A, electrode 2, electrode 4 ... ..,
Electrode 2N is second electrode 4B, electrode 1, electrode 2 ... the voltage signal that .., electrode 2N+1 are applied in is respectively：V1、V2、…..、
V2N+1, V1=V2N+1, V2=V2N... .., VN-1=VN+1, VN>VN-1>…..>V2>V1.During actual implementation, electrode 1, electrode
3rd ... .., electrode 2N+1 or second electrode 4B, electrode 2, electrode 4 ... .., electrode 2N can be first electrode 4A.
The present embodiment is the electrode structure to form vertical electric field, suitable for optical axis the putting down perpendicular to basal surface of liquid crystal molecule
The display pattern of face intrinsic deflection.
3rd embodiment
Technical concept based on previous embodiment, the embodiment of the present invention additionally provide a kind of driving method of display panel,
Display panel uses the structure of previous embodiment, including the first substrate set to box and the second substrate and is arranged on first
Electrode layer and liquid crystal grating between substrate and the second substrate, electrode layer include multiple spaced electrodes.The present embodiment is shown
Showing the driving method of panel includes：
Apply voltage signal to the electrode layer, adjust the screen periods of the liquid crystal grating.
Specifically, each electrode into the electrode layer applies independent voltage signal, and one is determined by 2N+1 electrode
A screen periods are the liquid crystal grating of 2N*L, wherein, N is the positive integer more than or equal to 1, and L is electrode width and electrode spacing
The sum of.
In one embodiment, the electrode layer forms horizontal component of electric field, the optical axis of liquid crystal molecule parallel to the first substrate
During plane intrinsic deflection, each electrode into the electrode layer applies independent voltage signal, including：
Electrode 1, electrode 2 into the electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、
V2N+1Voltage signal, wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, V1>V2>…..>VN-1>VN。
In another embodiment, the electrode layer forms horizontal component of electric field, the optical axis of liquid crystal molecule perpendicular to the first substrate
Plane intrinsic deflection when, each electrode into the electrode layer applies independent voltage signal, including：
Electrode 1, electrode 2 into the electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、
V2N+1Voltage signal, wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, VN>VN-1>…..>V2>V1。
In yet another embodiment, when the electrode layer forms vertical electric field, each electrode into the electrode layer is applied
Add independent voltage signal, including：
Electrode 1, electrode 2 into the electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、
V2N+1Voltage signal, wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, VN>VN-1>…..>V2>V1。
Fourth embodiment
The embodiment of the present invention additionally provides a kind of display device, and display device includes display panel and the side of previous embodiment
Enter formula collimated back device.Wherein, side entering type collimated back device is for generating collimated back, is arranged on the substrate of ducting layer/first/electricity
The side of pole layer.Side entering type collimated back device can by red R, green G, indigo plant tri- colors of B semiconductor laser chip after mixed light
It is made, can be also made of preferable R, G, B three-color LED chip of collimation after mixed light, it can also be by the preferable white light of collimation
LED chip is made after mixed light or by the CCFL fluorescent tubes of strip some light collimating structures can be added to be made, the invention is not restricted to
Said structure.The light direction of side entering type collimated back device is needed with ducting layer/first substrate/electrode layer normal into a clamp
Angle so that while incident light can form total reflection in ducting layer/first substrate/electrode layer, ensures waveguide optical grating coupling
Clutch has certain light extraction efficiency.
Display device provided in an embodiment of the present invention can be：The VR helmets, VR glasses, mobile phone, tablet computer, television set,
Any product or component with display function such as display, laptop, Digital Frame, navigator.
5th embodiment
Technical concept based on previous embodiment, the embodiment of the present invention additionally provide a kind of driving method of display device,
Display device includes the display panel of previous embodiment.The driving method of the present embodiment display device includes：
S1, user's eyes and the relative position of display panel are determined；
S2, the light direction that each sub-pixel on display panel is determined according to the relative position；
S3, the light direction according to each sub-pixel on display panel adjust the screen periods of each sub-pixel.
Wherein, step S3 includes：
S31, the light direction according to each sub-pixel on display panel determine the screen periods of each sub-pixel；
S32, the screen periods according to each sub-pixel apply voltage signal to the electrode layer of display panel, and adjustment is each
The screen periods of liquid crystal grating in sub-pixel.
Wherein, in step S32, first the electricity needed for determining the screen periods is calculated according to the screen periods of each sub-pixel
Number of poles, then according to the type of drive of foregoing fourth embodiment, each electrode into the electrode layer applies independent electricity
Signal is pressed, adjusts the screen periods of liquid crystal grating in each sub-pixel.
Fig. 8 is the schematic diagram of display device electrode drive of the present invention.It, can will be on display panel in order to simplify driving circuit
Sub-pixel be grouped driving, the present embodiment is with 50 groups of illustrations.Sub-pixel on display panel is divided into 50 groups, left and right
It is each 25 groups symmetrical.After the position relationship of human eye and display panel is determined, each group according to its position to the different folder of human eye
Angle, you can calculate each group of corresponding screen periods.In the present embodiment, the screen periods of R sub-pixels in each group can be set
Identical (number of poles is identical), the screen periods of G sub-pixel are identical, and the screen periods of B sub-pixels are identical, i.e., in each group only
Three kinds of screen periods then only need to calculate 25*3 screen periods for 25 groups.In order to ensure light coupling effect, set per height picture
Element includes 2 liquid crystal gratings.
As shown in figure 8, by taking B sub-pixels in group are formed by 5 electrode drives as an example, V1=V5>V2=V4>V3, second liquid
The last one electrode of first electrode and first liquid crystal grating of brilliant grating shares, the driving mould of all B sub-pixels in group
Formula is identical.During actual implementation, the drive pattern (driving voltage of respective electrode) of B sub-pixels can not also be identical in same group,
Because driving voltage only influences the pattern and height of liquid crystal grating, the size of screen periods is not influenced.It is driven to be further simplified
Dynamic, the maximum voltage applied in all groups to electrode can share, and the minimum voltage applied in all groups to electrode can share.
As shown in figure 8, B sub-pixels are identical with the drive pattern of B sub-pixels in the 50th group in the 1st group, B sub-pixels and the 49th in the 2nd group
The drive pattern of B sub-pixels is identical in group, and so on, in the 25th group in B sub-pixels and the 26th group B sub-pixels drive pattern
It is identical.B sub-pixels are driven in 5 electrodes of each liquid crystal grating in 1st group and the 50th group, and first electrode layer includes electrode 1, electricity
Pole 3 and electrode 5, the second electrode lay includes electrode 2 and electrode 4, due to V1=V5>V2=V4>V3, therefore first electrode layer needs are applied
Add 2 groups of different voltage signal V1And V3, the second electrode lay only need apply one group of identical voltage signal V2。
In the description of the embodiment of the present invention, it is to be understood that term-middle part " ,-on " ,-under " ,-preceding " ,-
Afterwards " ,-it is vertical " ,-horizontal " ,-top " ,-bottom "-it is interior " ,-it is outer " etc. instructions orientation or position relationship for based on attached drawing institute
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit of the invention
System.
, it is necessary to illustrate in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term-peace
Dress " ,-be connected " ,-connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or one
Ground connects；Can be mechanical connection or electrical connection；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Although disclosed herein embodiment as above, the content only for ease of understanding the present invention and use
Embodiment is not limited to the present invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
On the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of display panel, which is characterized in that including the first substrate set to box and the second substrate and be arranged on described
Electrode layer and liquid crystal grating between first substrate and the second substrate, the electrode layer are used to adjust the grating of the liquid crystal grating
Cycle.
2. display panel according to claim 1, which is characterized in that the electrode layer include it is multiple be alternatively arranged and respectively
The electrode of independent voltage signal is received, the liquid crystal grating that a screen periods are 2N*L is determined by 2N+1 electrode, wherein, N is
Positive integer more than or equal to 1, L are the sum of electrode width and electrode spacing.
3. display panel according to claim 2, which is characterized in that the electrode layer includes first electrode layer and the second electricity
Pole layer, the first electrode layer include spaced multiple first electrodes, and the second electrode lay includes spaced more
A second electrode, each first electrode is located between two second electrodes or each second electrode be located at two first electrodes it
Between.
4. display panel according to claim 3, which is characterized in that the first electrode layer and the second electrode lay are respectively provided with
In the first substrate, insulating layer is provided between the first electrode layer and the second electrode lay；Alternatively, the first electrode layer is set
It puts in the first substrate, the second electrode lay is arranged in the second substrate.
5. a kind of display device, which is characterized in that including the display panel as described in Claims 1 to 4 is any.
6. a kind of driving method of display panel, which is characterized in that display panel includes the first substrate and second set to box
Substrate and the electrode layer and liquid crystal grating being arranged between first substrate and the second substrate, the driving method include：
Apply voltage signal to the electrode layer, adjust the screen periods of the liquid crystal grating.
7. driving method according to claim 6, which is characterized in that the electrode layer includes multiple spaced electricity
Pole；Apply voltage signal to the electrode layer, adjust the screen periods of the liquid crystal grating, including：Into the electrode layer
Each electrode applies independent voltage signal, and the liquid crystal grating that a screen periods are 2N*L is determined by 2N+1 electrode, wherein,
N is the positive integer more than or equal to 1, and L is the sum of electrode width and electrode spacing.
8. driving method according to claim 7, which is characterized in that each electrode into the electrode layer applies independent
Voltage signal, including：
Electrode 1, electrode 2 into the electrode layer ... it is respectively V that .., electrode 2N+1, which apply voltage value,1、V2、…..、V2N+1's
Voltage signal, wherein, V1=V2N+1, V2=V2N... .., VN-1=VN+1, V1>V2>…..>VN-1>VN；Alternatively, to the electrode layer
In electrode 1, electrode 2 ... .., electrode 2N+1 apply voltage value be respectively V1、V2、…..、V2N+1Voltage signal, wherein, V1
=V2N+1, V2=V2N... .., VN-1=VN+1, VN>VN-1>…..>V2>V1。
9. a kind of driving method of display device, which is characterized in that display device is included as described in Claims 1 to 4 is any
Display panel, the driving method include：
Determine user's eyes and the relative position of display panel；
The light direction of each sub-pixel on display panel is determined according to the relative position；
According to the light direction, the screen periods of each sub-pixel are adjusted.
10. driving method according to claim 9, which is characterized in that according to the light direction, adjust each sub-pixel
Screen periods, including：
According to the light direction of each sub-pixel on display panel, the screen periods of each sub-pixel are determined；
According to the screen periods of each sub-pixel, apply voltage signal to the electrode layer of display panel, adjust in each sub-pixel
The screen periods of liquid crystal grating.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192076A (en) * | 2018-11-02 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN109239965A (en) * | 2018-09-30 | 2019-01-18 | 京东方科技集团股份有限公司 | A kind of display device and its control method |
| CN110737138A (en) * | 2018-07-20 | 2020-01-31 | 京东方科技集团股份有限公司 | display panel, display device and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736255A (en) * | 2012-06-05 | 2012-10-17 | 深圳市亿思达显示科技有限公司 | Stereo display device and optical grating system applied to same |
| US20140063383A1 (en) * | 2012-08-31 | 2014-03-06 | Boe Technology Group Co., Ltd. | Liquid Crystal Grating Panel, Stereo Display Device And Display Method Thereof |
| CN105549209A (en) * | 2016-02-04 | 2016-05-04 | 京东方科技集团股份有限公司 | 3D display device and method for adjusting raster period |
| CN106292052A (en) * | 2016-10-24 | 2017-01-04 | 京东方科技集团股份有限公司 | A kind of display floater and device |
| CN206096710U (en) * | 2016-10-24 | 2017-04-12 | 京东方科技集团股份有限公司 | Display device |
| CN107357075A (en) * | 2017-08-11 | 2017-11-17 | 京东方科技集团股份有限公司 | Display panel and display device |
-
2018
- 2018-01-03 CN CN201810005260.6A patent/CN108051936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736255A (en) * | 2012-06-05 | 2012-10-17 | 深圳市亿思达显示科技有限公司 | Stereo display device and optical grating system applied to same |
| US20140063383A1 (en) * | 2012-08-31 | 2014-03-06 | Boe Technology Group Co., Ltd. | Liquid Crystal Grating Panel, Stereo Display Device And Display Method Thereof |
| CN105549209A (en) * | 2016-02-04 | 2016-05-04 | 京东方科技集团股份有限公司 | 3D display device and method for adjusting raster period |
| CN106292052A (en) * | 2016-10-24 | 2017-01-04 | 京东方科技集团股份有限公司 | A kind of display floater and device |
| CN206096710U (en) * | 2016-10-24 | 2017-04-12 | 京东方科技集团股份有限公司 | Display device |
| CN107357075A (en) * | 2017-08-11 | 2017-11-17 | 京东方科技集团股份有限公司 | Display panel and display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737138A (en) * | 2018-07-20 | 2020-01-31 | 京东方科技集团股份有限公司 | display panel, display device and control method thereof |
| CN110737138B (en) * | 2018-07-20 | 2021-04-30 | 京东方科技集团股份有限公司 | Display panel, display device and control method thereof |
| CN109239965A (en) * | 2018-09-30 | 2019-01-18 | 京东方科技集团股份有限公司 | A kind of display device and its control method |
| CN109239965B (en) * | 2018-09-30 | 2021-11-23 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| US11187844B2 (en) | 2018-09-30 | 2021-11-30 | Boe Technology Group Co., Ltd. | Display device and control method thereof |
| CN109192076A (en) * | 2018-11-02 | 2019-01-11 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
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| CN108051936B (en) | 2021-02-12 |
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