CN109613731A - A kind of display panel and its control method, display device - Google Patents
A kind of display panel and its control method, display device Download PDFInfo
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- CN109613731A CN109613731A CN201910046832.XA CN201910046832A CN109613731A CN 109613731 A CN109613731 A CN 109613731A CN 201910046832 A CN201910046832 A CN 201910046832A CN 109613731 A CN109613731 A CN 109613731A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Geometry (AREA)
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Abstract
This application provides a kind of display panel and its control methods, display device, the application realizes display state or non-display state by adjusting the refractive index of refracting layer, the light extraction efficiency of display panel is adjusted by the way that formation refractive index is in periodically variable optical grating construction in the display stage, to realize that grayscale is shown, the grayscale of the namely display panel shows that no setting is required polarizing film, therefore the transmitance and transparency of display product can be improved in display panel provided by the present application；Also, display panel provided by the present application itself can penetrate environment light, realize transparence display, without individually marking off transparent region in display area, therefore will not influence the resolution ratio of display device, be conducive to the display device design of high PPI.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of display panel and its control method, display device.
Background technique
Liquid crystal display is the display device of current large-scale use, lightening with colour gamut height, and the response time is fast etc.
A series of advantage suffers from mature technology in terms of theoretical research and actual process.Liquid crystal display can not only expire
The demand that foot is routinely shown, can also have a variety of different display patterns, such as transparence display, peep-proof are shown, double vision is shown
Etc..
Existing LCD technology is to modulate to realize to polarization of light state based on liquid crystal, therefore polarizing film is display
One of indispensable accessory, however the setting of polarizing film can seriously affect the transmitance of display device, also can in transparence display application
Limit the transparency of display device.
Summary of the invention
The present invention provides a kind of display panel and its control method, display device, with improve display product transmitance and
Transparency.
To solve the above-mentioned problems, the invention discloses a kind of display panel, the display panel includes:
Control module, and the first substrate, refracting layer and the second substrate that are stacked；
The second substrate includes the first substrate and is stacked in first substrate close to the refracting layer side
First electrode layer, insulating layer and the second electrode lay；
The control module is connect with the first electrode layer and the second electrode lay respectively, is configured as adjusting
Voltage in the first electrode layer and the second electrode lay, adjusts the first electrode layer and the second electrode lay generates
Electric field, to adjust the refractive index of the refracting layer, so that under non-display state, the refractive index of the refracting layer is less than described
First refractive index, incident ray are totally reflected in the first substrate；The refractive index of the refracting layer exists under display state
It is parallel on the direction of the first substrate in cyclically-varying, the refractive index of at least partly described refracting layer is greater than or equal to institute
First refractive index is stated, incident ray passes through the first substrate, the refracting layer and the second substrate, and exports described aobvious
Show panel；
Wherein the refractive index of the first substrate is first refractive index.
Optionally, the first electrode layer is arranged close to first substrate, including multiple discrete strip structures；It is described
With the cavernous structure of periodic arrangement, orthographic projection position of the cavernous structure in the first electrode layer on the second electrode lay
In in the strip structure region.
Optionally, the material of the refracting layer is liquid crystal, and the first substrate includes the second substrate and is arranged described
For second substrate close to the first alignment film of the refracting layer side, the second substrate further includes being arranged in the second electrode lay
The second alignment film close to the refracting layer side, first alignment film are parallel with the alignment direction of second alignment film.
Optionally, the material of the first electrode layer and the second electrode lay is ITO.
Optionally, the display panel further includes side light source, and the side light source is default to first substrate outgoing
The incident ray of angle.
Optionally, the second substrate further includes that first substrate is arranged in away from the diffusion of the side of the refracting layer
Piece.
To solve the above-mentioned problems, the invention also discloses a kind of display device, the display device includes any implementation
Display panel described in example.
To solve the above-mentioned problems, the invention also discloses a kind of control methods of display panel, are applied to any implementation
Display panel described in example, the control method include:
The voltage in the first electrode layer and the second electrode lay is adjusted, the first electrode layer and described are adjusted
The electric field that two electrode layers generate, to adjust the refractive index of the refracting layer, so that under non-display state, the folding of the refracting layer
Rate is penetrated less than the first refractive index, incident ray is totally reflected in the first substrate；The refraction under display state
The refractive index of layer is in cyclically-varying, the refractive index of at least partly described refracting layer on the direction for being parallel to the first substrate
More than or equal to the first refractive index, incident ray passes through the first substrate, the refracting layer and the second substrate,
And export the display panel.
Optionally, it when the first electrode layer includes multiple discrete strip structures, is applied on each strip structure
Add first voltage, applies second voltage on the second electrode lay.
Optionally, it when the first electrode layer includes multiple discrete strip structures, is applied on odd column strip structure
Add positive tertiary voltage, apply negative sense tertiary voltage on even column strip structure, applies 0V electricity on the second electrode lay
Pressure.
Compared with prior art, the present invention includes the following advantages:
This application provides a kind of display panel and its control methods, display device, and wherein display panel includes control mould
Block, and the first substrate, refracting layer and the second substrate that are stacked；The second substrate includes that the first substrate and stacking are set
Set first electrode layer, insulating layer and the second electrode lay in first substrate close to the refracting layer side；The control mould
Block is connect with the first electrode layer and the second electrode lay respectively, is configured as adjusting the first electrode layer and institute
The voltage on the second electrode lay is stated, the electric field of the first electrode layer and the second electrode lay generation is adjusted, described in adjusting
The refractive index of refracting layer, so that the refractive index of the refracting layer is less than the first refractive index, incident light under non-display state
Line is totally reflected in the first substrate；The refractive index of the refracting layer is being parallel to the first substrate under display state
Direction on be in cyclically-varying, the refractive index of at least partly described refracting layer is greater than or equal to the first refractive index, incident
Light passes through the first substrate, the refracting layer and the second substrate, and exports the display panel；Wherein described
The refractive index of one substrate is first refractive index.The application realizes display state or non-display shape by adjusting the refractive index of refracting layer
State adjusts the light extraction efficiency of display panel by the way that formation refractive index is in periodically variable optical grating construction in the display stage, from
And realize that grayscale is shown, that is, the grayscale polarizing film that shows that no setting is required of the display panel, therefore display provided by the present application
The transmitance and transparency of display product can be improved in panel；Also, display panel provided by the present application itself can penetrate ring
Border light realizes transparence display, without individually marking off transparent region in display area, therefore will not influence point of display device
Resolution is conducive to the display device design of high PPI.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows a kind of the schematic diagram of the section structure of display panel provided by the embodiments of the present application；
The cross-section structure signal that Fig. 2 shows a kind of display panels provided by the embodiments of the present application under non-display state
Figure；
Fig. 3 shows a kind of the schematic diagram of the section structure of the display panel provided by the embodiments of the present application under display state；
Fig. 4 shows the schematic diagram of the section structure of second of display panel provided by the embodiments of the present application；
Fig. 5 shows the planar structure schematic diagram of second of display panel provided by the embodiments of the present application；
Fig. 6 shows cross-section structure signal of second of the display panel provided by the embodiments of the present application under non-display state
Figure；
Fig. 7 shows cross-section structure signal of second of the display panel provided by the embodiments of the present application under display state
Figure；
Fig. 8 shows a kind of liquid crystal arrangement of second of the display panel provided by the embodiments of the present application under control method and shows
It is intended to；
Fig. 9 shows liquid crystal arrangement of second of the display panel provided by the embodiments of the present application under another control method
Schematic diagram.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Existing transparence display is mostly that transparent region is marked off in display area, penetrates environment light using transparent region,
Realize transparence display.Since conventional display area is needed using polarizing film, so the transmitance of transparent region is lower, and transparent
Region also will affect the resolution ratio of display device, be unfavorable for the display device design of high PPI.
To solve the above-mentioned problems, referring to Fig.1, this application provides a kind of display panel, which may include:
Control module 10, and the first substrate 11, refracting layer 12 and the second substrate 13 that are stacked.
The second substrate 13 includes the first substrate 130 and is stacked in the first substrate 130 close to 12 side of refracting layer
First electrode layer 131, insulating layer 132 and the second electrode lay 133.
Control module 10 is connect with first electrode layer 131 and the second electrode lay 133 respectively, is configured as adjusting first
Voltage on electrode layer 131 and the second electrode lay 133 adjusts the electric field of first electrode layer 131 and the generation of the second electrode lay 133,
To adjust the refractive index of refracting layer 12, so that the refractive index of refracting layer 12 is less than first refractive index, incident under non-display state
Light is totally reflected in first substrate 11；The refractive index of refracting layer 12 is in the side for being parallel to first substrate 11 under display state
It is upwards in cyclically-varying, at least partly the refractive index of refracting layer 12 is greater than or equal to first refractive index, and incident ray is by the
One substrate 11, refracting layer 12 and the second substrate 13, and export display panel.
Wherein, the refractive index of first substrate 11 is first refractive index.
Specifically, refracting layer 12 can be the electrooptical material of the adjustable variation of refractive index under the action of electric field.According to electricity
The power relationship of luminous effect and electric field is divided into linear electrooptic material, square electrooptical material and more high order electrooptical material, such as atmosphere phosphorus
Acid dihydride potassium (DKDP), phosphoric acid dihydro amine (ADP), LN and button acid file (LT) crystal etc..The material of the present embodiment birefringence layer 12
It is not construed as limiting.
First substrate 130 can be glass substrate etc..
The material of first electrode layer 131 and the second electrode lay 133 can be with metal, ITO etc., in order to improve the saturating of display panel
Cross rate and transparency, the material of first electrode layer 131 and the second electrode lay 133 can be ITO.
Insulating layer 132 for example can be PVX layers.
The voltage in first electrode layer 131 and the second electrode lay 133 is adjusted by control module 10, adjusts first electrode layer
131 and the electric field that generates of the second electrode lay 133, which for example can be transverse electric field, is applied on refracting layer 12, can adjust
Save the refractive index of refracting layer 12.
In non-display state, referring to Fig. 2, the refractive index of refracting layer 12 can be made to be less than first refractive index, due to refraction
The refractive index of layer 12 and the refractive index of air are respectively less than the first refractive index of first substrate 11, therefore incident ray can be first
Total reflection propagation is carried out in substrate 11, at this time from 13 side of the second substrate, no display beam projecting, therefore realize non-display shape
State.Wherein, it in order to be totally reflected incident ray in first substrate 11, needs according to first refractive index, air refraction
And incident angle of the refractive index control incident ray of refracting layer 12 in first substrate 11.
In the state of display, referring to Fig. 3, it can make the refractive index of refracting layer 12 on the direction for being parallel to first substrate 11
In cyclically-varying, optical grating construction is formed, and the refractive index of at least partly refracting layer 12 is greater than or equal to first refractive index, this
When incident ray projected out of first substrate 11 enter refracting layer 12, due to refracting layer 12 be formed by optical grating construction have take light
Function, therefore light can travel to the second substrate 13 and export display panel.First electrode layer is adjusted by control module 10
131 and the second electrode lay 133 on voltage, adjust refracting layer 12 refractive index size, the formed light of adjustable refracting layer 12
The light transmittance of grid structure realizes that grayscale is shown to adjust the light extraction efficiency of display panel.
Display panel provided in this embodiment, the refractive index by adjusting refracting layer realize display state or non-display shape
State adjusts the light extraction efficiency of display panel by the way that formation refractive index is in periodically variable optical grating construction in the display stage, from
And realize that grayscale is shown, that is, the grayscale polarizing film that shows that no setting is required of the display panel, therefore display provided by the present application
The transmitance and transparency of display product can be improved in panel；Also, display panel provided by the present application itself can penetrate ring
Border light realizes transparence display, without individually marking off transparent region in display area, therefore will not influence point of display device
Resolution is conducive to the display device design of high PPI.
In a kind of implementation, referring to Fig. 4 and Fig. 5, first electrode layer 131 is arranged close to the first substrate 130, including multiple
Discrete strip structure；With the cavernous structure of periodic arrangement on the second electrode lay 133, cavernous structure is in first electrode layer
Orthographic projection on 131 is located in strip structure region.
It should be noted that first electrode layer 131 and the shape of the second electrode lay 133 are not limited merely to above-mentioned shape,
As long as first electrode layer 131 and the second electrode lay 133 that can generate the arbitrary shape of the electric field acted on refracting layer 12 are equal
Within the protection scope of the present embodiment.The width of strip structure, the size of spacing and cavernous structure, spacing etc. can be with
It is arranged according to the actual situation.
In order to form electric field between first electrode layer 131 and the second electrode lay 133, therefore set on the second electrode lay 133
It is equipped with cavernous structure.Voltage at cavernous structure is the voltage of first electrode layer 131, and other positions are the second electrode lay 133
Voltage generates potential difference, therefore can form the transverse electric field acted on refracting layer 12 between cavernous structure and other positions.
Referring to Fig. 4, the material of refracting layer 12 can be liquid crystal, and first substrate 11 includes that the second substrate 110 and setting exist
For second substrate 110 close to the first alignment film 111 of 12 side of refracting layer, the second substrate 13 further includes being arranged in the second electrode lay
133 close to 12 side of refracting layer the second alignment film 134, the alignment direction of the first alignment film 111 and the second alignment film 134 is flat
Row.First alignment film 111 and the second alignment film 134 are used for liquid crystal molecular orientation.
It should be noted that the first alignment film 111 and the second alignment film 134 are not required, this is because for part
Liquid crystal material, initial orientation can also be completed by not needing orientation film layer.In order to promote the orientation systematicness of liquid crystal molecule, can adopt
Liquid crystal rule orientating is realized with the first alignment film 111 and the second alignment film 134.
When liquid crystal is in lying status, liquid-crystal refractive-index is approximately no, less than the first refractive index of first substrate, at this time
Light is totally reflected on first substrate 11 and liquid crystal interface, and dull thread projects display panel, and display panel is in non-display
State, referring to Fig. 6.
Referring to Fig. 7, the electric field driven liquid crystal molecule deflection generated between first electrode layer 131 and the second electrode lay 133, when
First electrode layer 131 includes multiple strip structures, and when the second electrode lay 133 includes multiple cavernous structures, liquid crystal molecule is parallel
In being presented periodic deflection on the direction of first substrate 11, therefore its refractive index is in cyclically-varying, realizes liquid crystal grating structure.
In the position that liquid crystal molecule is holded up, liquid-crystal refractive-index is approximately ne, is greater than first refractive index, is unsatisfactory for total reflection condition at this time,
Light can enter liquid crystal layer and project display panel, and display panel is in display state at this time.By adjusting first electrode layer
131 with the deflection angle of the big minor adjustment liquid crystal of voltage on the second electrode lay 133, and then adjust light extraction efficiency, realize that grayscale is aobvious
Show.
It should be noted that, design using insulating layer 132 without borehole more regular in order to make liquid crystal initially sort, this
It is since in borehole corner, liquid crystal will receive the extruding on two sides at right angle, therefore be unfavorable for liquid crystal rule orientating.In addition,
The ITO of thinner thickness can be used as the second electrode lay 133, liquid crystal interface can be made more flat in this way, reduce segment difference
Influence to liquid crystal aligning.
In a kind of control method, identical first voltage V1 can be applied on each strip structure of first electrode layer 131,
Apply second voltage V2 on the second electrode lay 133.
The analog result of liquid crystal deflection is shown referring to Fig. 8, it can be seen that liquid crystal molecule is in the side for being parallel to first substrate
Periodic arrangement is presented upwards.The linearly polarized light of (corresponding two side light sources) incident for both direction shown in fig. 5, liquid crystal
The refractive index of molecule is rendered as cyclically-varying, can be equivalent to two-dimentional liquid crystal grating, and liquid crystal grating can destroy first substrate
Total reflection, realize liquid crystal grating take light, to realize display function.
It, can be to two different directions (corresponding two sides since liquid crystal arrangement is periodic array in two dimensions referring to Fig. 8
Set light source) light realize modulation.Since the arrangement period of strip structure in first electrode layer and the incident direction of incident light are determined
Determine display view angle, therefore can realize that the direction of various dimensions is shown according to actual needs.
Along AA ' and along the section of BB ', liquid crystal arrangement and light propagation are referred to Fig. 6 institute under non-display state in Fig. 8
Show, liquid crystal arrangement and light propagation are referred to shown in Fig. 7 under display state.
In another control method, parity column strip structure in first electrode layer 131 can be driven respectively, such as
Apply positive tertiary voltage+V3 on the odd column strip structure of first electrode layer 131, applies on even column strip structure negative
To tertiary voltage-V3, apply 0V voltage on the second electrode lay 133.
Liquid crystal deflection analog result is shown referring to Fig. 9, it can be seen that liquid crystal molecule is in the direction for being parallel to first substrate
It is upper to form one-dimensional liquid crystal grating, grating can be played for the linearly polarized light that the direction of propagation is parallel to strip structure extending direction and taken
The effect of light, light occur angle deviation in liquid crystal layer, are emitted after being reflected by the second substrate.It should be noted that should
Liquid crystal grating structure can only modulate the linearly polarized light of single direction propagation under structure, which is parallel to prolonging for strip structure
Stretch direction.
Along the section of AA ', liquid crystal arrangement and light propagation are referred to shown in Fig. 6 under non-display state in Fig. 9, are shown
Liquid crystal arrangement and light propagation are referred to shown in Fig. 7 under state.
It should be noted that the specific value of first voltage, second voltage and tertiary voltage in above-mentioned control method
It can be according to actual use situation setting.
Display panel can also include side light source 14, and referring to Fig. 4 and Fig. 5, side light source 14 is emitted to first substrate 11
The incident ray of predetermined angle.
Side light source 14 includes LED light and reflector, and LED light issues divergent rays, becomes standard after reflector reflects
Direct light line is entered in first substrate with predetermined angle.Wherein, predetermined angle is that can make incident ray in first substrate 11
The angle being totally reflected.
The second substrate 13 can also include that the first substrate 130 is arranged in away from the diffusion sheet 135 of the side of refracting layer 12, ginseng
According to Fig. 4.
Display panel provided in this embodiment can be active driving device, and the second substrate 13 can also include multiple films
Transistor, such as can be used for driving first electrode layer.In addition display panel provided in this embodiment can also be carried on the back using timing
Colored display is realized in light or conventional color film design.
The display panel that the various embodiments described above provide, can may be implemented conventional display, direction in no polarization piece
It has been shown that, 3D display and transparence display isotype, and different display modes only need single display panel, effectively reduce
The thickness of device.
Due to the display panel no polarization piece that the various embodiments described above provide, there is high transparency, therefore can be with
Applied to transparence display.Factor due to influencing transmitance is only the loss of substrate and each film layer, the aperture opening ratio of pixel region
Deng, therefore transparency can achieve 50%, compared with existing transparence display technology, without dividing display area and clear area
Domain, therefore the transparence display of high PPI may be implemented.
Another embodiment of the application additionally provides a kind of display device, which can be to show described in any embodiment
Show panel.
It should be noted that display device in the present embodiment can be with are as follows: display panel, Electronic Paper, mobile phone, plate electricity
Any products or components having a display function such as brain, television set, laptop, Digital Frame, navigator.
Another embodiment of the application additionally provides a kind of control method of display panel, is applied to any of the above-described embodiment institute
The display panel stated, the control method may include:
The voltage on first electrode layer and the second electrode lay is adjusted, the electricity of first electrode layer and the second electrode lay generation is adjusted
, to adjust the refractive index of refracting layer, so that the refractive index of refracting layer is less than first refractive index, incident under non-display state
Light is totally reflected in first substrate；The refractive index of refracting layer is on the direction for be parallel to first substrate under display state
Cyclically-varying, at least partly refractive index of refracting layer are greater than or equal to first refractive index, and incident ray is by first substrate, folding
Layer and the second substrate are penetrated, and exports display panel.
In a kind of implementation, when first electrode layer includes multiple discrete strip structures, applied on each strip structure
Add first voltage, applies second voltage on the second electrode layer.
In a kind of implementation, when first electrode layer includes multiple discrete strip structures, in odd column strip structure
The positive tertiary voltage of upper application, applies negative sense tertiary voltage on even column strip structure, applies 0V electricity on the second electrode layer
Pressure.
The detailed process of control method provided in this embodiment is identical as the course of work of display panel described in preceding embodiment
Or it is similar, which is not described herein again.
The embodiment of the present application provides a kind of display panel and its control method, display device, and wherein display panel includes
Control module, and the first substrate, refracting layer and the second substrate that are stacked；The second substrate include the first substrate and
It is stacked first electrode layer, insulating layer and the second electrode lay in first substrate close to the refracting layer side；It is described
Control module is connect with the first electrode layer and the second electrode lay respectively, is configured as adjusting the first electrode
Voltage on layer and the second electrode lay adjusts the electric field of the first electrode layer and the second electrode lay generation, to adjust
The refractive index of the refracting layer is saved, so that the refractive index of the refracting layer is less than the first refractive index under non-display state,
Incident ray is totally reflected in the first substrate；The refractive index of the refracting layer is being parallel to described under display state
It is in cyclically-varying on the direction of one substrate, the refractive index of at least partly described refracting layer is greater than or equal to the first refractive
Rate, incident ray passes through the first substrate, the refracting layer and the second substrate, and exports the display panel；Its
Described in first substrate refractive index be first refractive index.The application by adjust refracting layer refractive index realize display state or
Non-display state adjusts the light out of display panel by the way that formation refractive index is in periodically variable optical grating construction in the display stage
Efficiency, to realize that grayscale is shown, that is, the grayscale polarizing film that shows that no setting is required of the display panel, therefore the application provides
Display panel can be improved display product transmitance and transparency；Also, display panel provided by the present application itself can be with
Through environment light, realizes transparence display, without individually marking off transparent region in display area, therefore will not influence display
The resolution ratio of part is conducive to the display device design of high PPI.
Display panel provided by the present application has good directional property and transparent characteristic, can be used for transparence display neck
Domain, different structure designs may be implemented one-dimensional and two-dimensional grating structure, can match different light source designs and realize multidimensional
The direction of degree is shown.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, commodity or the equipment that include a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, commodity or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in process, method, commodity or the equipment for including the element.
A kind of display panel provided by the present invention and its control method, display device are described in detail above,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；At the same time, for those skilled in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes:
Control module, and the first substrate, refracting layer and the second substrate that are stacked；
The second substrate include the first substrate and be stacked in first substrate close to the refracting layer side
One electrode layer, insulating layer and the second electrode lay；
The control module connect with the first electrode layer and the second electrode lay respectively, is configured as described in adjusting
Voltage in first electrode layer and the second electrode lay adjusts the electricity of the first electrode layer and the second electrode lay generation
, to adjust the refractive index of the refracting layer, so that the refractive index of the refracting layer is less than described first under non-display state
Refractive index, incident ray are totally reflected in the first substrate；The refractive index of the refracting layer is parallel under display state
In being in cyclically-varying on the direction of the first substrate, the refractive index of at least partly described refracting layer is greater than or equal to described the
One refractive index, incident ray passes through the first substrate, the refracting layer and the second substrate, and exports the display surface
Plate；
Wherein the refractive index of the first substrate is first refractive index.
2. display panel according to claim 1, which is characterized in that the first electrode layer is set close to first substrate
It sets, including multiple discrete strip structures；With the cavernous structure of periodic arrangement, the poroid knot on the second electrode lay
Structure is located in the strip structure region in the orthographic projection in the first electrode layer.
3. display panel according to claim 2, which is characterized in that the material of the refracting layer be liquid crystal, described first
Substrate includes the second substrate and second substrate is arranged in close to the first alignment film of the refracting layer side, and described second
Substrate further includes that the second electrode lay is arranged in close to the second alignment film of the refracting layer side, first alignment film with
The alignment direction of second alignment film is parallel.
4. display panel according to claim 1, which is characterized in that the first electrode layer and the second electrode lay
Material is ITO.
5. display panel according to claim 1, which is characterized in that the display panel further includes side light source, described
Incident ray of the side light source to first substrate outgoing predetermined angle.
6. display panel according to any one of claims 1 to 5, which is characterized in that the second substrate further includes setting
In first substrate away from the diffusion sheet of the side of the refracting layer.
7. a kind of display device, which is characterized in that the display device includes display surface as claimed in any one of claims 1 to 6
Plate.
8. a kind of control method of display panel, is applied to display panel as claimed in any one of claims 1 to 6, feature exists
In the control method includes:
The voltage in the first electrode layer and the second electrode lay is adjusted, the first electrode layer and second electricity are adjusted
The electric field that pole layer generates, to adjust the refractive index of the refracting layer, so that under non-display state, the refractive index of the refracting layer
Less than the first refractive index, incident ray is totally reflected in the first substrate；The refracting layer under display state
Refractive index is in cyclically-varying on the direction for being parallel to the first substrate, and the refractive index of at least partly described refracting layer is greater than
Or it is equal to the first refractive index, incident ray passes through the first substrate, the refracting layer and the second substrate, and defeated
The display panel out.
9. control method according to claim 8, which is characterized in that when the first electrode layer includes multiple discrete items
When shape structure, applies first voltage on each strip structure, apply second voltage on the second electrode lay.
10. control method according to claim 8, which is characterized in that when the first electrode layer includes multiple discrete
When strip structure, applies positive tertiary voltage on odd column strip structure, apply negative sense third on even column strip structure
Voltage applies 0V voltage on the second electrode lay.
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| CN201910046832.XA CN109613731A (en) | 2019-01-18 | 2019-01-18 | A kind of display panel and its control method, display device |
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Application publication date: 20190412 |