CN108919488A - A kind of nearly eye display module of simple eye big visual field - Google Patents
A kind of nearly eye display module of simple eye big visual field Download PDFInfo
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- CN108919488A CN108919488A CN201810739228.0A CN201810739228A CN108919488A CN 108919488 A CN108919488 A CN 108919488A CN 201810739228 A CN201810739228 A CN 201810739228A CN 108919488 A CN108919488 A CN 108919488A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
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Abstract
This application discloses a kind of nearly eye display modules of simple eye big visual field, for solving the lesser technical problem of field angle in the nearly eye display module of the existing AR based on waveguide.The mould group includes：First image generator and the second image generator are respectively used to generate the image beam of the first sub- visual field and the second sub- visual field；First sub- view field image and the second sub- view field image splicing can form a complete field of view image；First input coupler, the image beam for generating the first image generator collimate and are coupled into first wave guide；Second input coupler, the image beam for generating the second image generator collimate and are coupled into second waveguide；First decoupling grating, light beam for will propagate in first wave guide is to the first visual field direction diffraction decoupling first wave guide, second decoupling grating, light beam for will propagate in second waveguide is to the second visual field direction diffraction decoupling second waveguide, so that the light beam of diffraction decoupling is just spliced into complete field of view image.
Description
Technical field
This application involves augmented reality field of display technology, more particularly to a kind of nearly eye display module of simple eye big visual field.
Background technique
Augmented reality AR shows that equipment allows users to watch surrounding through the transparent or semitransparent display of equipment
Environment, and also see display generate image be covered on ambient enviroment.This kind of equipment is usually that wear-type is shown
Device (HMD) glasses or other wearable display equipment.The nearly eye display module of the existing AR based on waveguide, generally comprises image
Source, eyepiece optics element, input coupling grating, waveguide and output coupling grating.The light that image source issues is through eyepiece optics element
It after collimation, is coupled into waveguide through input coupling grating with certain angle of diffraction and carries out total reflection propagation, correspond in waveguide
The output coupling grating of pupil position setting, the optocoupler propagated in waveguide is gone out to human eye.
But grating is the element very sensitive to incident angle, for input coupling grating, different angle is incident
The light of input coupling grating, diffraction efficiency and angle are also different, in specific incident angle at have maximum diffraction efficiency, when
When incident angle deviates the specific incident angle, diffraction efficiency can decline rapidly, and causing to be coupled into waveguide has effect spread
Light energy declines rapidly, the lesser status of the field angle for causing user to observe.
Summary of the invention
The purpose of the application is to provide a kind of nearly eye display module of simple eye big visual field, solves the nearly eye of the existing AR based on waveguide
The lesser technical problem of field angle in display module.
In a first aspect, the embodiment of the present application provides a kind of simple eye big visual field nearly eye display module, including：First image generates
Device, the second image generator, the first input coupler, the second input coupler, first wave guide, second waveguide, the first decoupling light
Grid, the second decoupling grating；
Wherein, the first image generator, for generating the first sub- view field image light beam；Second image generates
Device, for generating the second sub- view field image light beam；The first sub- view field image and the second sub- view field image splicing, form
One complete field of view image；
First input coupler, the image beam for generating the first image generator collimate and are coupled into
One waveguide；Second input coupler, the image beam for generating second image generator collimate and are coupled into
Two waveguides；
The first decoupling grating, the light beam for will propagate in first wave guide is to described in the first visual field direction diffraction decoupling
First wave guide, the second decoupling grating, light beam for will propagate in second waveguide is to the second visual field direction diffraction decoupling institute
Second waveguide is stated, so that the light beam of diffraction decoupling is just spliced into the complete field of view image.
Optionally, the first image generator or second image generator include micro-display, and micro-display is
DLP display, LCOS display, LCD display, OLED display, optical fiber scanning display or MEMS scan image display system
System.
Optionally, the fibre optic scanner includes scanner driver and optical fiber, optical fiber be fixedly connected with scanner driver and
The front end of optical fiber forms optical fiber cantilever beyond scanner driver, and the scanner driver includes：It is integrally formed and along from back to front
Sequentially connected first actuation part in direction, isolation part and the second actuation part, scanner driver be internally provided with along front and back
To the interior electrode hole for running through scanner driver, the first actuation part and the second actuation part include piezoelectric material ontology, the first actuating
There are two being parallel to each other and perpendicular to the first lateral surface of first axle, each first lateral surface is all provided with the piezoelectric material ontology tool in portion
It is equipped with a first external electrode, there are two be parallel to each other and perpendicular to the of the second axis for the piezoelectric material ontology tool of the second actuation part
Two lateral surfaces, each second lateral surface are provided with a second external electrode, and first axle and the second axis are each perpendicular to front-rear direction
And be mutually perpendicular to, the inner wall of interior electrode hole is provided with the interior electrode matched with the first external electrode and the second external electrode.
Optionally, the intrinsic frequency of the piezoelectric material ontology of second actuation part is greater than the piezoelectric material of the first actuation part
Intrinsic frequency.
Optionally, the interior electrode hole is round hole or square hole, when interior electrode hole is square hole, the hole of square hole
It include two first planes parallel with the first lateral surface and two second planes parallel with the second lateral surface, interior electrode in wall
It is set to the first plane and the second plane.
Optionally, the first external electrode is connected with the first film conductive layer, and the first film conductive layer insulation sticks
In the surface of the first actuation part；The second external electrode is connected with the second film conductive layer, the second film conductive layer insulation patch
It is overlying on the first actuation part and isolation part outer surface.
One or more technical solution in the embodiment of the present application, at least has the following technical effect that or advantage：
In the embodiment of the present application, each image generator is respectively used to the display of some view field image, each view field image
Light beam through each self-waveguide propagation after, splicing output is carried out by decoupling grating, one can be showed by individually regarding in human eye
The complete field of view image that field picture is spliced, expands field angle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application first embodiment；
Fig. 2A is the structural schematic diagram of the nearly eye display module of the simple eye big visual field of another kind disclosed in the application first embodiment；
Fig. 2 B is the positive structure diagram of the nearly eye display module of simple eye big visual field shown in the application Fig. 2A；
Fig. 3 is the structural schematic diagram of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application second embodiment；
Fig. 4 is the structural schematic diagram of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application 3rd embodiment；
Fig. 5 is the structural schematic diagram of the nearly eye display module of the simple eye big visual field of another kind disclosed in the application 3rd embodiment；
Fig. 6 is the structural schematic diagram of scanner driver in the present invention；
Fig. 7 is the structure sectional view of scanner driver in the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
As shown in FIG. 1, FIG. 1 is the structures of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application first embodiment
Schematic diagram.The nearly eye display module 100 of the simple eye big visual field includes：First image generator 111, the second image generator 112, the
One input coupler 121, the second input coupler 122, first wave guide 131, second waveguide 132, the first decoupling grating 141, the
Two decoupling gratings 142；Wherein,
First image generator 111, for generating the first sub- view field image light beam；Second image generator 112, for giving birth to
At the second sub- view field image light beam；First sub- view field image and the second sub- view field image splicing can form a complete field of view figure
Picture；
First input coupler 121, the image beam for generating the first image generator 111 collimate and are coupled into first
Waveguide 131；Second input coupler 122, the image beam for generating the second image generator 112 collimate and are coupled into second
Waveguide 132；
First decoupling grating 141, light beam for will propagate in first wave guide 131 is to the first visual field direction S1 diffraction decoupling
First wave guide 131, the second decoupling grating 142, light beam for will propagate in second waveguide 132 is to the second visual field direction S2 diffraction
Decoupling second waveguide 132, so that the light beam of diffraction decoupling is just spliced into above-mentioned complete field of view image.
In the present embodiment, the first image generator or the first image generator may include：Micro-display, micro-display
It is shown for DLP display, LCOS display, LCD display, OLED display, optical fiber scanning display or MEMS scan image
System.
In the present embodiment, the first input coupler 121 and the second input coupler 122 can be input coupling reflecting mirror
Or input coupling grating, the image beam for respectively being generated image generator by way of reflection or diffraction is with special angle coupling
Enter first wave guide or second waveguide carries out total reflection propagation.
In the present embodiment, the first decoupling grating 141 or the second decoupling grating 142 will be propagated by diffraction mode in waveguide
Light beam go out waveguide to human eye to corresponding visual field direction diffraction respectively, need exist for the grating constant for setting decoupling grating and
Decoupling angle so that the light beam of decoupling can just be spliced into above-mentioned complete field of view image, such human eye can see one it is opposite
The image at big visual angle.
As an alternative embodiment, as shown in Figure 2 A and 2B, Fig. 2A is another disclosed in the application first embodiment
A kind of structural schematic diagram of the nearly eye display module of simple eye big visual field；Fig. 2 B is that the nearly eye of simple eye big visual field shown in the application Fig. 2A is aobvious
Show the positive structure diagram of mould group.The nearly eye display module 100 of above-mentioned simple eye big visual field further includes：First relaying 151 He of grating
Second relaying grating 152；First relaying grating 151, expands for carrying out emergent pupil to the light beam propagated in first wave guide 131, and
Light beam after expanding imports the first decoupling grating 141；Second relaying grating 152, for the light propagated in second waveguide 132
Shu Jinhang emergent pupil expands, and the light beam after expanding imports the second decoupling grating 142.
In the present embodiment, the light beam of first wave guide 131 is coupled into first wave guide 131 through the first input coupler 121
Inner total reflection propagates to the first relaying grating 151, realizes expanding in the X direction, and the light beam after expanding continues in first wave
It leads 131 total reflections and propagates to the first decoupling grating 141,141 one side of the first decoupling grating is another by light beam decoupling first wave guide
The Z-direction that aspect realizes light beam expands.
In the present embodiment, the light beam of second waveguide 132 is coupled into second waveguide 132 through the second input coupler 122
Inner total reflection propagates to the second relaying grating 152, realizes expanding in the X direction, and the light beam after expanding continues in the second wave
It leads 132 total reflections and propagates to the second decoupling grating 142,142 one side of the second decoupling grating is another by light beam decoupling second waveguide
The Z-direction that aspect realizes light beam expands.
As an alternative embodiment, the diffraction efficiency of the first decoupling grating 141 is from close to the first input coupler
121 one end gradually rises to far from the first input coupler 121；The diffraction efficiency of second decoupling grating 142 is from close to second
One end of input coupler 122 gradually rises to far from the second input coupler 122.
In this implementation upper type, decoupling grating 141/142 close to the side of input coupler 121/122 light intensity most
By force, the light intensity of the position far from input coupler 121/122 gradually weakens, thus it is whole to need higher diffraction efficiency just to can guarantee
The uniformity of output intensity within the scope of a pupil.The application can be designed by the structure size to grating or grating constant is set
Meter makes the diffraction efficiency of decoupling grating 141/142 from one end close to input coupler 121/122 to far from input coupler
121/122 gradually rises.
As shown in figure 3, Fig. 3 is the structure of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application second embodiment
Schematic diagram.The area of the nearly eye display module 300 of simple eye big visual field eye display module 100 close compared with simple eye big visual field shown in FIG. 1
It is not, the first input coupler 321, including：First eyepiece optics device 3211 and first is coupled into reflecting element 3212；Second
Input coupler 322, including：Second eyepiece optics device 3221 and second is coupled into reflecting element 3222；First eyepiece optics device
Part 3211 and the second eyepiece optics device 3221 are respectively used to the first image generator 311 of collimation and the second image generator 312
The image beam of generation；First, which is coupled into reflecting element 3212 and second, is coupled into reflecting element 3222, is respectively used to pass through reflection side
Collimated image beam is coupled into first wave guide 331 to formula and second waveguide 332 carries out total reflection propagation.
In order to reduce the size of the nearly eye display module 300 of simple eye big visual field, make display module closer in AR product itself,
First is coupled into reflecting element 3212, specifically for the first image generator 311 is parallel to the image light that first wave guide 331 is emitted
Beam is coupled into first wave guide 331 and carries out total reflection propagation；Second is coupled into reflecting element 3222, is specifically used for the second image generator
312 image beams for being parallel to the outgoing of second waveguide 332 are coupled into second waveguide 332 and carry out total reflection propagation.
As shown in figure 4, Fig. 4 is the structure of the nearly eye display module of the simple eye big visual field of one kind disclosed in the application 3rd embodiment
Schematic diagram.The area of the nearly eye display module 400 of simple eye big visual field eye display module 100 close compared with simple eye big visual field shown in FIG. 1
It is not,
First input coupler 421, including：First eyepiece optics device 4211 and first is coupled into grating 4212；
Second input coupler 422, including：Second eyepiece optics device 4221 and second is coupled into grating 4222；
First eyepiece optics device 4211 and the second eyepiece optics device 4221 are respectively used to the first image generator of collimation
411 and second image generator 412 generate image beam；
First, which is coupled into grating 4212 and second, is coupled into grating 4222, is respectively used to collimated image through diffraction mode
Light beam is coupled into first wave guide 431 and second waveguide carries out total reflection and propagates 432.
As shown in figure 5, in order to reduce the size of the nearly eye display module 400 of simple eye big visual field, make display module closer in
AR product itself, the nearly eye display module 400 of simple eye big visual field further include：First reflecting element 4213 and the second reflecting element
4223；
First reflecting element 4213, for the first image generator 411 to be parallel to the image light that first wave guide 431 is emitted
Beam is reflected towards first and is coupled into grating 4212；
Second reflecting element 4223, for the second image generator 412 to be parallel to the image light that second waveguide 432 is emitted
Beam is reflected towards second and is coupled into grating 4222.
The nearly eye display module of above-mentioned simple eye big visual field is whole when being applied in near-eye display device as such as VR/AR
The consistency and integraty of a structure are particularly important, this can bring many benefits for near-eye display device, such as：Structure is more whole
Clean, space utilization rate improves, reliability improves, assembling difficulty reduces etc..Therefore scanner driver preferably uses one in the present invention
The scanner driver of body formed formula.
Fibre optic scanner structure of the present invention is described in detail below with reference to Fig. 6 and Fig. 7, the fibre optic scanner includes sweeping
Driver and optical fiber 604 are retouched, optical fiber 604 is fixedly connected with scanner driver and the front end of optical fiber exceeds scanner driver and forms light
Fine cantilever, the scanner driver include：Be integrally formed and along from back to front sequentially connected first actuation part 601 in direction,
Isolation part 607 and the second actuation part 606, scanner driver are internally provided with the interior electricity for running through scanner driver along the longitudinal direction
Pole hole 609, the optical fiber 604 are fixed in interior electrode hole 609, and the first actuation part 601 and the second actuation part 606 include piezoelectricity
Material body, there are two the piezoelectric material ontology tools of the first actuation part 601 is parallel to each other and perpendicular to the first outside of first axle
Face, each first lateral surface are provided with a first external electrode 608, and the piezoelectric material ontology of the second actuation part 606 has two
A to be parallel to each other and perpendicular to the second lateral surface of the second axis, each second lateral surface is provided with a second external electrode 603,
First axle and the second axis are each perpendicular to front-rear direction and are mutually perpendicular to, the inner wall of interior electrode hole 609 be provided with described first outside
The interior electrode 605 that electrode 608 and the second external electrode 603 match.
First actuation part 601 driving optical fiber cantilever is vibrated along the first axis direction, and the second actuation part 606 drives optical fiber cantilever edge
The vibration of second axis direction, integrally formed bidirectional drive can reduce number of components, keep scanning process more stable, the first actuating
Interconnecting piece between portion 601 and the second actuation part 606 is not in loosen caused by long-play, is had convenient for volume production, system
Make the advantages that quick, error is small, repeated high, yields is high.
Compared between the first actuation part 601 and the second actuation part 606 use gluing in the prior art or buckle, screw
Etc. fixed forms, the mode of gluing or buckle connection can be caused to loosen due to prolonged high-frequency vibration, directly affect scanner
Vibration performance, and then volume is slightly larger for the fixed form of screw, the slightly aobvious complexity of structure, and existing fixed form technology difficulty
Greatly, it is low that time-consuming, poor repeatability, yields are made.
Size all very littles of second actuation part 606 and the first actuation part 601 in fibre optic scanner, thickness is on a several millimeters of left sides
The right side, therefore used during the two interconnects and be easy to both damages when connector；And mold is utilized to be integrally formed, it avoids
The series of process such as the assembling of follow up scan device, alignment, debugging reduce complexity, promote producing efficiency, therefore using one
Molding can substantially reduce the difficulty in manufacturing process and promote device reliability, while can be increased whole with Anti-dismantling, anti-disintegration
Body reliability and durability.
First actuation part 601 and the second actuation part 606 control the production of optical fiber 604 according to the driving signal that control unit issues
Vibration in raw first axis direction vibration and the second axis direction vibrations synthesis direction, the intrinsic frequency of the second actuation part 606 are remote
Greater than the intrinsic frequency of the first actuation part 601, to be further driven to optical fiber cantilever swing, the exit end of cantilever segment end is three
Grid scanning is carried out in dimension space, to be emitted the laser with modulation intelligence to appearing picture.
In order to enable the fibre optic scanner in the present invention that optical fiber cantilever to be driven to realize grid type scanning, the first actuation part
601 and second the intrinsic frequency of actuation part 606 must be different, i.e., both can be regarded as a kind of filter, only frequency meets
The driving signal of the two itself intrinsic frequency can drive the two stable vibration.
The integrated molding of first actuation part 601, isolation part 607 and the second actuation part 606 refers to using integrally formed work
The integrally manufactured molding of integrated member that skill will be constituted comprising the first actuation part 601, isolation part 607 and the second actuation part 606.Example
Such as, the first actuation part 601, isolation part 607 and the second actuation part 606 include the master using the preparation of piezoelectric ceramic powder powder material
Body, after ceramic powder is packed into mold compression moulding, can be obtained one by baking includes the first actuation part
601, the integrated member of isolation part 607 and the second actuation part 606, then as needed by the first actuation part 601 and the second actuating
Portion 606 polarizes, and adds driving electrodes in the first actuation part 601 and the second actuation part 606.
The first actuation part 601 and second in the application field of this micro-structure of fibre optic scanner, after integrated molding
The promotion of 606 pairs of actuation part scanning outgoing picture qualities is significantly, mainly to be embodied by following factor：In fibre optic scanner
In, the first actuation part 601 and the second actuation part 606 do high-frequency vibration, 606 one of the first actuation part 601 and the second actuation part
During molding making, the pressure of tens of megapascal makes scanner itself densification enough to realize efficient performance, while rigidity pole
It greatly, is that cannot be compared in the way of gluing, therefore integrated molding avoids interconnecting parts and caused to loosen by high-frequency vibration.
By the first lateral surface of setting and the second lateral surface, so that the laying of the first external electrode 608 and the second external electrode 603
Position is accurate, when processing, as long as guaranteeing the angle of the first lateral surface and the second lateral surface, only needs when laying electrode by external electrode
It is arranged in the first lateral surface and the second lateral surface, so that it may guarantee the direction of vibration and the second actuation part 606 of the first actuation part 601
Direction of vibration included angle.
First actuation part 601 under the driving of the alternating electric field formed between electrode in the first external electrode 608 and first its
Front end along the first shaft vibration, the alternation electricity that is formed between the second external electrode 603 and the second inner electrode of the second actuation part 606
Its front end is along the second shaft vibration under the driving of field.Specifically, the piezoelectric material ontology of the first actuation part 601 is located at outside first
Part in electrode 608 and first between electrode is along the direction polarization perpendicular to the first lateral surface, the piezoelectricity of the second actuation part 606
Part of the material body between the second external electrode 603 and the second inner electrode is along the direction polarization perpendicular to the second lateral surface.
Interior electrode hole 609 is round hole or square hole, when interior electrode hole 609 is square hole, is wrapped in the hole wall of square hole
Two first planes parallel with the first lateral surface and two second planes parallel with the second lateral surface are included, interior electrode 605 is set
It is placed in the first plane and the second plane.It is also possible to：When interior electrode hole 609 is round, interior electrode 605 is that a tubulose is whole
Body, the first actuation part 601 and the second actuation part 606 share an interior electrode 605.
The first external electrode 608 be connected with the first film conductive layer 611, the insulation of the first film conductive layer 611 is covered on the
The surface of one actuation part 601.The second external electrode 603 be connected with the second film conductive layer 602, the second film conductive layer 602 is absolutely
Edge is covered on 607 outer surface of the first actuation part 601 and isolation part；To which each external electrode passes through corresponding Thin film conductive
Driving element or detection device outside layer connection.During fibre optic scanner vibration, film is bent with fibre optic scanner
Deformation is connected compared to conducting wire, can overcome the influence caused by the displacement of fibre optic scanner due to conducting wire self weight very well.
One or more technical solution in the embodiment of the present application, at least has the following technical effect that or advantage：
In the embodiment of the present application, each image generator is respectively used to the display of some view field image, each view field image
Light beam through each self-waveguide propagation after, splicing output is carried out by decoupling grating, one can be showed by individually regarding in human eye
The complete field of view image that field picture is spliced, expands field angle.
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The application is not limited to specific embodiment above-mentioned.The application, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of nearly eye display module of simple eye big visual field, which is characterized in that including：First image generator, the second image generate
Device, the first input coupler, the second input coupler, first wave guide, second waveguide, the first decoupling grating, the second decoupling grating；
Wherein,
The first image generator, for generating the first sub- view field image light beam；Second image generator, for generating
Second sub- view field image light beam；The first sub- view field image and the second sub- view field image splicing can form a complete view
Field picture；
First input coupler, the image beam for generating the first image generator collimate and are coupled into first wave
It leads；Second input coupler, the image beam for generating second image generator collimate and are coupled into the second wave
It leads；
The first decoupling grating, the light beam for will propagate in first wave guide is to first described in the first visual field direction diffraction decoupling
Waveguide, the second decoupling grating, light beam for will propagate in second waveguide is to described in the second visual field direction diffraction decoupling
Two waveguides, so that the light beam of diffraction decoupling is just spliced into the complete field of view image.
2. the nearly eye display module of simple eye big visual field as described in claim 1, which is characterized in that
First input coupler, including：First eyepiece optics device and first is coupled into reflecting element；
Second input coupler, including：Second eyepiece optics device and second is coupled into reflecting element；
The first eyepiece optics device and the second eyepiece optics device are respectively used to collimation the first image generator
The image beam generated with second image generator；
Described first, which is coupled into reflecting element and described second, is coupled into reflecting element, and being respectively used to will be collimated by reflection mode
Image beam is coupled into the first wave guide and the second waveguide carries out total reflection propagation.
3. the nearly eye display module of simple eye big visual field as claimed in claim 2, which is characterized in that
Described first is coupled into reflecting element, specifically for the first image generator is parallel to the first wave guide outgoing
Image beam is coupled into the first wave guide and carries out total reflection propagation；
Described second is coupled into reflecting element, specifically for second image generator is parallel to the second waveguide outgoing
Image beam is coupled into the second waveguide and carries out total reflection propagation.
4. the nearly eye display module of simple eye big visual field as described in claim 1, which is characterized in that
First input coupler, including：First eyepiece optics device and first is coupled into grating；
Second input coupler, including：Second eyepiece optics device and second is coupled into grating；
The first eyepiece optics device and the second eyepiece optics device are respectively used to collimation the first image generator
The image beam generated with second image generator；
Described first, which is coupled into grating and described second, is coupled into grating, is respectively used to collimated image beam through diffraction mode
It is coupled into the first wave guide and the second waveguide carries out total reflection propagation.
5. the nearly eye display module of as claimed in claim 4 simple eye big visual field, which is characterized in that the nearly eye of the simple eye big visual field is aobvious
Show that mould group further includes：First reflecting element and the second reflecting element；
First reflecting element, for the first image generator to be parallel to the image beam of the first wave guide outgoing
It is reflected towards described first and is coupled into grating；
Second reflecting element, for second image generator to be parallel to the image beam of the second waveguide outgoing
It is reflected towards described second and is coupled into grating.
6. such as the nearly eye display module of simple eye big visual field described in any one of claim 1 to 5, which is characterized in that first figure
As generator or second image generator include micro-display, micro-display is DLP display, LCOS display, LCD aobvious
Show one of device, OLED display, optical fiber scanning display, MEMS scan image display system.
7. the nearly eye display module of simple eye big visual field according to claim 6, which is characterized in that the fibre optic scanner includes
Scanner driver and optical fiber, optical fiber is fixedly connected with scanner driver and the front end of optical fiber forms optical fiber beyond scanner driver and hangs
Arm, the scanner driver include：Be integrally formed and along from back to front sequentially connected first actuation part in direction, isolation part and
Second actuation part, scanner driver are internally provided with the interior electrode hole for running through scanner driver along the longitudinal direction, the first actuating
Portion and the second actuation part include piezoelectric material ontology, and there are two be parallel to each other and hang down the piezoelectric material ontology tool of the first actuation part
Directly in the first lateral surface of first axle, each first lateral surface is provided with a first external electrode, the piezoelectricity of the second actuation part
For material body tool there are two being parallel to each other and perpendicular to the second lateral surface of the second axis, each second lateral surface is provided with one
The second external electrode, first axle and the second axis are each perpendicular to front-rear direction and are mutually perpendicular to, and the inner wall of interior electrode hole is provided with and institute
State the interior electrode that first external electrode and the second external electrode matches.
8. the nearly eye display module of simple eye big visual field according to claim 7, which is characterized in that the pressure of second actuation part
The intrinsic frequency of electric material ontology is greater than the intrinsic frequency of the piezoelectric material of the first actuation part.
9. the nearly eye display module of simple eye big visual field according to claim 7 or 8, which is characterized in that the interior electrode hole
It include parallel with the first lateral surface two when interior electrode hole is square hole, in the hole wall of square hole for round hole or square hole
A first plane and two second planes parallel with the second lateral surface, interior electrode are set to the first plane and the second plane.
10. the nearly eye display module of simple eye big visual field according to claim 9, which is characterized in that the first external electrode connects
It is connected to the first film conductive layer, the first film conductive layer insulation is pasted on the surface of the first actuation part；Outside described second
Electrode is connected with the second film conductive layer, and the insulation of the second film conductive layer is covered on the first actuation part and isolation part outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810739228.0A CN108919488A (en) | 2018-07-06 | 2018-07-06 | A kind of nearly eye display module of simple eye big visual field |
Applications Claiming Priority (1)
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| CN109656026A (en) * | 2019-02-25 | 2019-04-19 | 京东方科技集团股份有限公司 | A kind of holographic optical waveguide display device and method of big field angle |
| CN109839746A (en) * | 2019-03-05 | 2019-06-04 | 京东方科技集团股份有限公司 | A kind of near-eye display device and preparation method thereof |
| CN110850521A (en) * | 2019-12-03 | 2020-02-28 | 京东方科技集团股份有限公司 | Optical waveguide and AR or VR equipment |
| JP2021508080A (en) * | 2017-12-22 | 2021-02-25 | ディスペリックス オサケ ユキチュア | Interference-free waveguide display |
| CN112444970A (en) * | 2019-08-30 | 2021-03-05 | 成都理想境界科技有限公司 | Large-view-field AR waveguide |
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| CN113009690A (en) * | 2019-12-20 | 2021-06-22 | 杭州海康威视数字技术股份有限公司 | Image display method, near-to-eye display device and apparatus |
| CN113126292A (en) * | 2019-12-31 | 2021-07-16 | 成都理想境界科技有限公司 | Near-to-eye display system |
| CN114326123A (en) * | 2021-12-27 | 2022-04-12 | 北京灵犀微光科技有限公司 | Near-to-eye display device |
| CN114527536A (en) * | 2022-03-04 | 2022-05-24 | 深圳珑璟光电科技有限公司 | Optical waveguide, manufacturing method thereof and head-up display |
| WO2022178987A1 (en) * | 2021-02-28 | 2022-09-01 | 南昌三极光电有限公司 | Optical system and mixed reality apparatus |
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| WO2022178987A1 (en) * | 2021-02-28 | 2022-09-01 | 南昌三极光电有限公司 | Optical system and mixed reality apparatus |
| CN114326123A (en) * | 2021-12-27 | 2022-04-12 | 北京灵犀微光科技有限公司 | Near-to-eye display device |
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