CN109164650B - A kind of side's annular electrode nested blue phase liquid crystal lens array - Google Patents
A kind of side's annular electrode nested blue phase liquid crystal lens array Download PDFInfo
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- CN109164650B CN109164650B CN201811112259.XA CN201811112259A CN109164650B CN 109164650 B CN109164650 B CN 109164650B CN 201811112259 A CN201811112259 A CN 201811112259A CN 109164650 B CN109164650 B CN 109164650B
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- liquid crystal
- transparent electrodes
- annular
- blue phase
- phase liquid
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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
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
-
- 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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13793—Blue phases
Abstract
The invention discloses a kind of side's annular electrode nested blue phase liquid crystal lens arrays comprising: upper substrate, blue phase liquid crystal layer, transparent high dielectric layer and lower substrate；Upper substrate is made of top glass substrate and upper planar transparent electrode；Lower substrate is made of square annular transparent electrodes I, side annular transparent electrodes II and lower glass substrate.By generating potential difference between the side of making annular transparent electrodes I and square annular transparent electrodes II, to form the index distribution of gradient in liquid crystal layer, achieve the effect that focusing.Change the focal length of the adjustable blue phase liquid crystal lens array of voltage on the side's of the being applied to annular transparent electrodes I and side's of being applied to annular transparent electrodes II.The present invention can effectively remove the gap between adjacent lens member, to reduce the leakage of optical information.In addition, the blue phase liquid crystal lens array manufacture craft is simple and is that polarization is unrelated.
Description
Technical field
The present invention relates to liquid crystal lens field, specifically a kind of side's annular electrode nested blue phase liquid crystal lens array.
Background technique
Due to the focal power that current conventional lenses are fixed, the coke worn and project the virtual image in augmented reality (AR) equipment is resulted in
Plane and real world object it is inconsistent, user needs constantly to adjust crystalline lens, to cause visual fatigue.In order to solve this
Problem, the adaptive optics component such as liquid crystal lens, liquid lens are put forward one after another.Big compared to volume, high power consumption liquid
Lens, liquid crystal lens have many advantages, such as it is compact light and handy, economical and practical, therefore more be hopeful be applied to portable AR system.However,
Traditional nematic liquid crystal lens are not suitable for AR and are shown due to polarization correlated.
Blue phase liquid crystal ideally solves defect existing for nematic liquid crystal, it has sub- Millisecond other response time,
And oriented layer is not needed, realizing that polarizing unrelated focusing effect field has a wide range of applications.Currently, production liquid crystal is saturating
There are two ways to mirror: (1) index matching；(2) graded index effect.Consolidating for face concave or convex is usually required when the former makes
Body lens, the latter generally use planar structure, because this latter is than the former more attractive.In recent years, more and more patternings
The blue phase liquid crystal lens of electrode plane structure are suggested.Wherein, the blue phase liquid crystal lens fabrication process of pass electrode is simple, has
The quick response time, and be that polarization is unrelated, but it can make picture quality impaired；The blue phase liquid crystal of multiple electrode structure is saturating
Mirror remains parabola shaped phase distribution in focal length variations, is equally that polarization is unrelated, but its driving process
It is complex.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of driving methods, and simple, production is held
Easy and function admirable blue phase liquid crystal lens array.
The present invention is achieved by the following technical solutions: the present invention includes upper substrate, blue phase liquid crystal layer, transparent high dielectric
Layer and lower substrate；Upper substrate is made of top glass substrate and upper planar transparent electrode；Lower substrate is by square annular transparent electrodes I, side
Annular transparent electrodes II and lower glass substrate composition.
For the dielectric coefficient of the transparent high dielectric layer between 100~500, it is used for the cross of smooth each surrounding them
To electric field, the consistency of o light and e light can be kept.
The upper planar transparent electrode and side annular transparent electrodes I and side annular transparent electrodes II are all made of tin indium oxide
(ITO) or the transparent conductive materials such as indium zinc oxide (IZO)；Planar transparent electrode, side annular transparent electrodes I and square annular transparent electricity
Pole II thickness having the same；Square annular transparent electrodes I be generally aligned in the same plane with side annular transparent electrodes II and have it is identical right
Title center, the side length of square annular transparent electrodes I is greater than the side length of square annular transparent electrodes II and ring width is identical.
Side's annular electrode nested blue phase liquid crystal lens array provided by the invention uses upper planar transparent electrode, blue phase liquid
Crystal layer, transparent high dielectric layer, square annular transparent electrodes I, square annular transparent electrodes II, driving method is simple and is easy to make.
The voltage being applied on planar transparent electrode is V0, voltage V on the side of being applied to annular transparent electrodes I1Greater than square annular transparent
Voltage V on electrode II2, potential difference is generated between the side of making annular transparent electrodes I and square annular transparent electrodes II, thus in liquid crystal
The index distribution that gradient is formed in layer, achievees the effect that focusing.Change the side's of being applied to annular transparent electrodes I and is applied to Fang Huan
The focal length of the adjustable blue phase liquid crystal lens array of voltage on shape transparent electrode II.The present invention can effectively remove adjacent
Gap between lens cells, to reduce the leakage of optical information.
Detailed description of the invention
Fig. 1 is the structural representation of the square annular electrode nested blue phase liquid crystal lens array single lens of the embodiment of the present invention
Figure.
Fig. 2 is the refractive index point of the square annular electrode nested blue phase liquid crystal lens array single lens of the embodiment of the present invention
Cloth curve graph.
Fig. 3 is the phase distribution of the square annular electrode nested blue phase liquid crystal lens array single lens of the embodiment of the present invention
Curve graph.
Fig. 4 is voltage-focal length curve graph of the square annular electrode nested blue phase liquid crystal lens array of the embodiment of the present invention.
Shown by reference numeral in above-mentioned attached drawing are as follows:
1 upper substrate, 2 top glass substrates, planar transparent electrode on 3,4 blue phase liquid crystal layers, 5 transparent high dielectric layers, 6 lower bases
Plate, 7 side's annular transparent electrodes I, 8 side's annular transparent electrodes II, 9 lower glass substrates.
Specific embodiment
To enable those skilled in the art to be further understood that the present invention, this hair is explained in detail below in conjunction with attached drawing
Bright specific embodiment.It should be noted that attached drawing is only for the purpose of description, and map not according to original size.
Attached drawing 1 is the knot of side's annular electrode nested blue phase liquid crystal lens array single lens provided in an embodiment of the present invention
Structure schematic diagram, the blue phase liquid crystal lens array include upper substrate, blue phase liquid crystal layer, transparent high dielectric layer and lower substrate；Upper substrate
It is made of top glass substrate and upper planar transparent electrode；Lower substrate by square annular transparent electrodes I, side annular transparent electrodes II and under
Glass substrate composition.Transparent high dielectric layer can adulterate the production of 0.4% cerium using titanium dioxide film, it is used for smooth each electrode
The transverse electric field of surrounding, is consistent o light and e light.Upper planar transparent electrode and side annular transparent electrodes I and side's annular are thoroughly
Prescribed electrode II is all made of ITO production, upper planar transparent electrode, side annular transparent electrodes I and square annular transparent electrodes II thickness phase
Together；Square annular transparent electrodes I and side annular transparent electrodes II are generally aligned in the same plane and have identical symmetrical centre；Square annular transparent
The side length of electrode I is greater than the side length of square annular transparent electrodes II, the ring width of square annular transparent electrodes I and square annular transparent electrodes II
It is identical.The voltage being applied on planar transparent electrode is V0, voltage V on the side of being applied to annular transparent electrodes I1Greater than Fang Huan
Voltage V on shape transparent electrode II2, potential difference is generated between the side of making annular transparent electrodes I and square annular transparent electrodes II, thus
The index distribution that gradient is formed in liquid crystal layer, achievees the effect that focusing.Pass through change side annular transparent electrodes I and side's annular
The focal length of the adjustable blue phase liquid crystal lens array of potential difference between transparent electrode II.
The characterisitic parameter of liquid crystal material used in the present embodiment are as follows: the Kerr coefficient K=13.7nm/ of blue phase liquid crystal material
V2, refractive index no=1.583, neWhen=1.7562, wavelength X=633nm, greatest birefringence 0.1732, being saturated electric field is
4.7V/μm。
The thickness d of liquid crystal layer in the present embodimentLC=10 μm, the thickness d of transparent high dielectric layer1=17 μm, dielectric coefficient is
120, the thickness of upper planar transparent electrode and side annular transparent electrodes I and square annular transparent electrodes II is 0.04 μm, Fang Huan
1/2 side length of shape transparent electrode I is l1=60 μm, 1/2 side length of square annular transparent electrodes II is l2=14 μm, square annular transparent
The ring width of electrode I and square annular transparent electrodes II are w=2 μm.
Attached drawing 2 is the refractive index of the square annular electrode nested blue phase liquid crystal lens array single lens of the embodiment of the present invention
Scatter chart, the voltage V being applied on planar transparent electrode at this time0=0V, the side of being applied to annular transparent electrodes I and Fang Huan
Voltage on shape transparent electrode II is respectively V1=50VrmsAnd V2=6Vrms.Dotted line indicates the refractive index distribution curve of o light, dotted line
Indicate that the refractive index distribution curve of e light, solid line indicate ideal parabolic.From attached drawing 2 as can be seen that the square annular electrode is embedding
Index distribution in the liquid crystal layer of set type blue phase liquid crystal lens array be it is centrosymmetric, between lens centre and rims of the lens
Refringence be 0.033.In addition, the refractive index distribution curve of o light and e light shows good consistency, and with ideal
Parabola is overlapped, and illustrates that the square annular electrode nested blue phase liquid crystal lens array is that polarization is unrelated.
Attached drawing 3 is the phase point of the square annular electrode nested blue phase liquid crystal lens array single lens of the embodiment of the present invention
Cloth curve graph, the voltage V being applied on planar transparent electrode at this time0=0V, the side of being applied to annular transparent electrodes I and side's annular
Voltage on transparent electrode II is respectively V1=50VrmsAnd V2=6Vrms.Dotted line indicates that the phase distribution curve of o light, dotted line indicate
The phase distribution curve of e light, solid line indicate ideal parabolic.From attached drawing 3 as can be seen that the phase distribution curve of o light and e light has
There is good consistency, and matched with ideal parabolic, the phase difference between lens centre and rims of the lens is 1.28 π, institute
The square annular electrode nested blue phase liquid crystal lens array stated is that polarization is unrelated.
Voltage-focal length curve graph of 4 side's of being annular electrode nested blue phase liquid crystal lens array of attached drawing.Band filled square
Curve indicate the focal length of o light with the relationship of voltage change, curve with filled circles indicates the focal length of e light with the pass of voltage change
System.From attached drawing 4 as can be seen that voltage on the side's of being applied to annular transparent electrodes I is from 0VrmsIncrease to 50Vrms, apply simultaneously
Voltage on square annular transparent electrodes II is from 0VrmsIncrease to 6VrmsWhen, the focal length of lens foreshortens to 6mm from infinity.Change
The focal length of application voltage, o light and e light is always consistent, and it is saturating to show again party's annular electrode nested blue phase liquid crystal
Lens array is that polarization is unrelated.
The above description is only a preferred embodiment of the present invention, however, the present invention is not limited thereto embodiment.The common skill of this field
Art personnel should be appreciated that in the case where not departing from the spirit and scope of the present invention being defined by the claims to its shape
The various changes that formula and details are made should all belong in the scope of the present invention.
Claims (5)
1. a kind of side's annular electrode nested blue phase liquid crystal lens array includes upper substrate, blue phase liquid crystal layer, transparent high dielectric layer
And lower substrate；Upper substrate is made of top glass substrate and upper planar transparent electrode；Lower substrate is by first party annular transparent electrodes,
Two side's annular transparent electrodes and lower glass substrate composition.
2. a kind of side's annular electrode nested blue phase liquid crystal lens array according to claim 1, characterized in that upper plane
Transparent electrode and first party annular transparent electrodes and second party annular transparent electrodes thickness having the same.
3. a kind of side's annular electrode nested blue phase liquid crystal lens array according to claim 1, characterized in that described
First party annular transparent electrodes and second party annular transparent electrodes are generally aligned in the same plane and have identical symmetrical centre, first party ring
The side length of shape transparent electrode is greater than the side length of second party annular transparent electrodes and ring width is identical.
4. a kind of side's annular electrode nested blue phase liquid crystal lens array according to claim 1, characterized in that described
Do not apply voltage on upper planar transparent electrode, the voltage being applied in first party annular transparent electrodes, which is greater than, is applied to second party ring
Voltage in shape transparent electrode.
5. a kind of side's annular electrode nested blue phase liquid crystal lens array according to claim 1, characterized in that change is applied
First party annular transparent electrodes and the voltage that is applied in second party annular transparent electrodes are added in adjust the blue phase liquid crystal lens
The focal length of array.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811112259.XA CN109164650B (en) | 2018-09-25 | 2018-09-25 | A kind of side's annular electrode nested blue phase liquid crystal lens array |
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| CN201811112259.XA CN109164650B (en) | 2018-09-25 | 2018-09-25 | A kind of side's annular electrode nested blue phase liquid crystal lens array |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011118168A (en) * | 2009-12-03 | 2011-06-16 | Casio Computer Co Ltd | Liquid crystal lens, focal length variable glasses using the same, optical pickup device, optical switch, liquid crystal lens array, three-dimensional display device, and directivity control display device |
| CN102902129A (en) * | 2012-11-14 | 2013-01-30 | 中航华东光电有限公司 | Liquid crystal lens |
| CN103235462A (en) * | 2013-05-06 | 2013-08-07 | 中航华东光电有限公司 | Liquid crystal lens, driving method and three-dimensional display device of liquid crystal lens during three-dimensional display |
| CN103616787A (en) * | 2013-12-04 | 2014-03-05 | 中航华东光电有限公司 | Liquid crystal lens and stereo display device with same |
| CN104317133A (en) * | 2014-11-12 | 2015-01-28 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
-
2018
- 2018-09-25 CN CN201811112259.XA patent/CN109164650B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011118168A (en) * | 2009-12-03 | 2011-06-16 | Casio Computer Co Ltd | Liquid crystal lens, focal length variable glasses using the same, optical pickup device, optical switch, liquid crystal lens array, three-dimensional display device, and directivity control display device |
| CN102902129A (en) * | 2012-11-14 | 2013-01-30 | 中航华东光电有限公司 | Liquid crystal lens |
| CN103235462A (en) * | 2013-05-06 | 2013-08-07 | 中航华东光电有限公司 | Liquid crystal lens, driving method and three-dimensional display device of liquid crystal lens during three-dimensional display |
| CN103616787A (en) * | 2013-12-04 | 2014-03-05 | 中航华东光电有限公司 | Liquid crystal lens and stereo display device with same |
| CN104317133A (en) * | 2014-11-12 | 2015-01-28 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
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