CN109001907A - A kind of high-resolution display module - Google Patents
A kind of high-resolution display module Download PDFInfo
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- CN109001907A CN109001907A CN201810739226.1A CN201810739226A CN109001907A CN 109001907 A CN109001907 A CN 109001907A CN 201810739226 A CN201810739226 A CN 201810739226A CN 109001907 A CN109001907 A CN 109001907A
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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
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Abstract
The invention discloses a kind of high-resolution display module, the technical issues of for solving low existing waveguide display technology intermediate-resolution and VAC effect.The high-resolution display module includes image segmentation system and at least two groups image mosaic unit, and every group of image concatenation unit includes fibre optic scanner, depth spare system and waveguide, and each waveguide is equipped with and is coupled into system and decoupling system；The data of image to be displayed are split multiple subgraphs by image segmentation system, the subgraph of each image mosaic cell processing passes through after depth spare system affix depth information and is coupled into waveguide by being coupled into system, through decoupling system decoupling after being propagated in waveguide with total reflection；The image mosaic of decoupling system exit is image to be displayed, to realize resolution ratio splicing to improve display resolution；With the depth spare system in image mosaic unit depth information can be added for subgraph in setting simultaneously, to effectively prevent VAC effect.
Description
Technical field
The present invention relates to waveguide field of display technology more particularly to a kind of high-resolution display modules.
Background technique
Existing waveguide type display module includes image source, eyepiece optics element, is coupled into unit, waveguide and decoupling unit.
The light that image source issues is collimated, inputs after being coupled into unit to be coupled into unit and be coupled into waveguide at a certain angle and be all-trans
Transmission is penetrated, the decoupling unit that exit pupil position setting is corresponded in waveguide goes out the optocoupler transmitted in waveguide to human eye.In this waveguide
In formula display module, resolution ratio is low and vision influx adjusts conflict VAC (vergence-accommodation
Conflict) effect is denounced by people always.
Summary of the invention
The embodiment of the present invention provides a kind of high-resolution display module, and it is low to solve existing waveguide display technology intermediate-resolution
Lower and VAC effect.
In order to achieve the above-mentioned object of the invention, the present invention proposes a kind of high-resolution display module, including image segmentation system
With at least two groups image mosaic unit；Every group of described image concatenation unit includes fibre optic scanner, depth spare system and waveguide,
Each waveguide is equipped with and is coupled into system and decoupling system, and each fibre optic scanner is built-in with colimated light system；Described image segmenting system
For the data of image to be displayed to be split as to the subgraph of quantity identical as image mosaic unit, at each image mosaic unit
Manage a subgraph；
In each image mosaic unit: the corresponding subgraph of image mosaic unit is collimation by fibre optic scanner outgoing
After light beam, through being coupled into waveguide by being coupled into system after depth spare system affix depth information, passed in waveguide with being totally reflected
Through decoupling system decoupling after broadcasting；
Exit image of each subgraph after corresponding image mosaic unit is spliced into the image to be displayed.
Further, each decoupling system all has two or more decoupling direction；
Each subgraph can be divided into two or more sub- view field image, decoupling by described image segmenting system
Its corresponding every sub- view field image is pressed corresponding decoupling direction outgoing, each decoupling system in a time multiplexed manner by system
All sub- view field images of system outgoing are spliced into a secondary subgraph.
Further, the decoupling system is selected from spatial light modulator, and it is saturating that the spatial light modulator is selected from ferroelectric liquid crystals
Mirror and blue phase liquid crystal lens.
It further, further include zoom mould group identical with image mosaic element number, one-to-one correspondence is set to single
On the emitting light path of described image concatenation unit；
Or,
Further include the zoom mould group of more than one quantity, is set to the common emitting light path of all image mosaic units
On.
Further, the depth spare system includes multiple polymer stabilized nematic liquid crystals optoelectronic film PSLC, passes through the time-division
The state that the mode of multiplexing controls multiple PSLC films is that transmissive state or scattering state realize that display has the figure of depth
Picture, scattering state and transmissive state apply voltage by application voltage and not to switch.
Further, multiple PSLC are arranged in parallel or parallel spaced set.
Further, the fibre optic scanner includes scanner driver and optical fiber, and optical fiber is fixedly connected with scanner driver
And the front end of optical fiber forms optical fiber cantilever beyond scanner driver, the scanner driver includes: to be integrally formed and along from backward
Sequentially connected first actuation part in preceding direction, isolation part and the second actuation part, scanner driver are internally provided with along front and back
The interior electrode hole of scanner driver is run through in direction, and the optical fiber is fixed in interior electrode hole, the first actuation part and the second actuation part
It include piezoelectric material ontology, there are two be parallel to each other and perpendicular to the of first axle for the piezoelectric material ontology tool of the first actuation part
One lateral surface, each first lateral surface are provided with a first external electrode, and the piezoelectric material ontology of the second actuation part 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, and
One axis and the second axis are each perpendicular to front-rear direction and are mutually perpendicular to, the inner wall of interior electrode hole be provided with the first external electrode and
The interior electrode that the second external electrode matches.
Further, the intrinsic frequency of the piezoelectric material ontology of second actuation part is greater than the piezoresistive material of the first actuation part
The intrinsic frequency of material.
Further, the interior electrode hole is round hole or square hole, when interior electrode hole is square hole, square hole
It include two first planes parallel with the first lateral surface and two second planes parallel with the second lateral surface, interior electricity in hole wall
Pole is set to the first plane and the second plane.
Further, the first external electrode is connected with the first film conductive layer, the first film conductive layer insulation patch
Spread on the surface of the first actuation part；The second external electrode is connected with the second film conductive layer, the insulation of the second film conductive layer
It is covered on the first actuation part and isolation part outer surface.
Scheme through the invention may be implemented following the utility model has the advantages that the invention mainly comprises image segmentation system and extremely
Few two groups of image concatenation units, every group of image concatenation unit includes fibre optic scanner, depth spare system and waveguide, each waveguide
Equipped with the system that is coupled into and decoupling system；The data of image to be displayed are split multiple subgraphs, each image by image segmentation system
The subgraph of concatenation unit processing passes through after depth spare system affix depth information is coupled into waveguide by being coupled into system, in waveguide
Through decoupling system decoupling after the interior propagation with total reflection；The image mosaic of decoupling system exit is image to be displayed, to realize
Resolution ratio is spliced to improve display resolution；Setting simultaneously and the depth spare system in image mosaic unit can be subgraph
Depth information is added, to effectively prevent VAC effect.
Detailed description of the invention
Fig. 1 is a kind of multiple series of images concatenation unit structural schematic diagram spliced with each other；
Fig. 2 is a kind of multiple series of images concatenation unit structural schematic diagram spliced with each other；
Fig. 3 is a kind of two groups of image concatenation unit structural schematic diagrams spliced with each other；
Fig. 4 is two groups of image concatenation units spliced light path schematic diagram mutually；
Fig. 5 is the structural schematic diagram of depth spare system；
Fig. 6 is the structural schematic diagram of fibre optic scanner in the present invention；
Fig. 7 is the structure sectional view of fibre optic scanner in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention proposes that a kind of high-resolution display module, including image segmentation system and at least two groups image are spelled
Order member；It include fibre optic scanner, depth spare system and waveguide in every group of image concatenation unit, each waveguide is equipped with and is coupled into
System and decoupling system, each fibre optic scanner are built-in with colimated light system；Image segmentation system is used for the number of image to be displayed
According to the subgraph for being split as quantity identical as image mosaic unit, one subgraph of each image mosaic cell processing；Each
In image mosaic unit: the corresponding subgraph of image mosaic unit by fibre optic scanner outgoing be collimated light beam after, through depth
Through being coupled into waveguide by being coupled into system after spare system affix depth information, through decoupling system after being propagated in waveguide with total reflection
Decoupling；Exit image of each subgraph after corresponding image mosaic unit is spliced into the image to be displayed.
Embodiment one:
Referring initially to Fig. 3, the first embodiment of the present invention is as shown in figure 3, Fig. 3 shows a kind of two image mosaic units 10
Carry out horizontally-spliced mode.It in the embodiment shown in fig. 3 include that two fibre optic scanners (are denoted as the first fibre optic scanner
1 and second fibre optic scanner 2), two depth spare system 3, two be coupled into system and (be denoted as first and be coupled into system 4 and
Two are coupled into system 5), two waveguides (being denoted as first wave guide 6 and second waveguide 7), two decoupling systems (be denoted as first
Decoupling system 60 and the second decoupling system 70).
The specific set-up mode of device of embodiment illustrated in fig. 3 is described below: as shown in figure 3, first wave guide 6 and second waveguide
7 it is equal in magnitude, the two edge alignment after overlap, must have the air gap as translucency interval, ability between the two
Field technique personnel it should be understood that other be able to satisfy make light reach in first wave guide 6 and second waveguide 7 total reflection other thoroughly
Photosensitiveness medium or vacuum can also serve as interval and be placed between first wave guide 6 and second waveguide 7.The light of first decoupling system 60
In the same direction downward or upward, the decoupling of the first decoupling system 60 is made in the light decoupling direction of line decoupling direction and the second decoupling system 70
It is transversely mutually staggered with region and the decoupling zone of action of the second decoupling system 70；
The incidence end of the exit end docking depth spare system 3 of first fibre optic scanner 1, the outgoing of depth spare system 3
End docking first is coupled into the end that is coupled into of system 4, and as end is coupled into, first is coupled into the decoupling of system 4 for a side of first wave guide 6
It holds and is docked with the end that is coupled into of first wave guide 6；
Equally, the exit end of the second fibre optic scanner 2 docks the incidence end of another depth spare system 3, and depth is additional
The exit end docking second of system 3 is coupled into the end that is coupled into of system 5, and as end is coupled into, second is coupled into for a side of second waveguide 7
It is docked with the end that is coupled into of second waveguide 7 at the decoupling end of system 5.
The work that lateral resolution splicing in Fig. 3 (i.e. the resolution ratio splicing of Y-direction in Fig. 1) is described in detail below with reference to Fig. 3 is former
Reason, process and effect.
Working principle, the process of embodiment illustrated in fig. 3 are specific as follows:
The data of image to be displayed are split as two parts, respectively the first image and by the first step, image segmentation system
The data of two images, image segmentation system may include can storage medium and processor；
Second step, processor control the first fibre optic scanner 1 and the second fibre optic scanner 2 according to the first image and the second figure
The data of picture are emitted corresponding first light beam and the second light beam respectively makes the two successively be incident upon corresponding depth spare system
3, it first is coupled into system 4 and second is coupled into system 5.Collimation is equipped with inside first fibre optic scanner 1 and the second fibre optic scanner 2
System, therefore entering depth spare system 3 is collimated light enters back into first later and is coupled into system 4 and second is coupled into system 5,
Colimated light system can be collimation lens, convex lens group, non-spherical lens group or Fresnel Lenses group herein；
Third step, the first light beam and the second light beam enter first and are coupled into system 4 and second are coupled into after system 5 again by the first coupling
Enter system 4 and second is coupled into system 5 and is coupled into first wave guide 6 and second waveguide 7 respectively.First wave guide 6 and second waveguide 7 by coupling
Enter angle not limit herein, various angles or position can be according to circumstances arranged in those skilled in the art.First is coupled into and is
System 4 and second is coupled into system 5 devices such as prism, grating, reflecting mirror can be used, and it is not limited here, only need to make to be coupled into first
The light beam of waveguide 6 and second waveguide 7 meets first wave guide and second waveguide total reflection condition；
4th step, 6 outside or inside of first wave guide are equipped with the first decoupling system 60, and the first decoupling system 60 will be in first wave
Lead the first light beam decoupling propagated in 6；The outside or inside of second waveguide 7 is equipped with the second decoupling system 70, the second decoupling system
70 the second light beam decouplings that will be propagated in second waveguide 7.
The effect of the course of work of embodiment illustrated in fig. 3 is specific as follows:
In image segmentation system, two subgraphs (the first image and the second image are designated as in figure) after fractionation can be spelled
It is connected in a complete image to be displayed.The first light beam corresponding to the first image can be subject to by depth spare system 3
Multiple depth information, the second light beam corresponding to the second image can also be subject to multiple depth letter by depth spare system 3
Breath.It must be noted that: the depth spare system 3 that the first light beam and the second light beam respectively enter is individually present, the depth applied
Degree information can be the same or different.Finally by the first light beam of 60 decoupling first wave guide 6 of the first decoupling system it is corresponding and by
Second light beam of 70 decoupling second waveguide 7 of the second decoupling system can horizontally be spliced into image to be displayed, and the splicing
Image afterwards has depth information, realizes light field and shows, effectively prevents VAC effect.Depth spare system 3 can be lens
Group, electrically-controlled liquid crystal, spatial light modulator etc., it is preferred to use multiple PSLC films.Due to the first light beam and the second light beam respectively by
First fibre optic scanner 1 and the second fibre optic scanner 2 is independent is responsible for, the first image and the second image of certain resolution respectively by
First fibre optic scanner 1 and 2 independent process of the second fibre optic scanner simultaneously stablize outgoing, therefore from first wave guide 6 and second waveguide 7
The first light beam and the second light beam of outgoing just can be spliced into the image to be displayed of a secondary stable higher resolution, final to realize
Lateral resolution splicing.In the splicing of the first light beam and the second light beam that first wave guide 6 and second waveguide 7 are emitted,
The lateral distance that the first decoupling system 60 and the second decoupling system 70 mutually stagger need to be simply only adjusted, can be effectively prevent most
There is gap or coincidence in the image spliced eventually.Preferably, in image segmentation system, the first image and the second image can have weight
Image section is closed, can prevent the image finally spliced from gap occur in this way, then corresponding first decoupling system 60 and the second coupling
The Exit positions of system 70 is emitted out the first light beam and the second light beam also need to do corresponding adjustment so that the coincidence part of the rwo
Divide the intersection corresponding to the first image and the second image.If not doing the first image and the second picture registration processing, most
The resolution ratio of the complete image spliced eventually=first the+the second image resolution ratio of image resolution ratio.If doing the first image and second
Picture registration processing, then resolution ratio=first the+the second image resolution ratio of image resolution ratio-portion of the complete image finally spliced
It is overlapped the resolution ratio of image section.Such as: if be overlapped, the resolution ratio of the first image is 1080p, the resolution ratio of the second image
It also is 1080p, then the resolution ratio of the complete image for the splicing that final aforementioned image concatenation unit 10 is emitted is 2k.
Embodiment two:
Embodiment is first is that by taking two groups of image concatenation units splice as an example, in the present invention when it is implemented, image mosaic unit
Group number is unlimited, can be increased according to situation, as shown in Figure 1: that multiple groups structure shown in Fig. 3 Z-direction along Fig. 1 is successively whole
The exit direction of neat arrangement, each image mosaic unit 10 is unified, and image segmentation system is divided and distributed and image mosaic unit
The identical subgraph of 10 quantity, respectively by being set in the first dimension (i.e. Y-direction in figure) and the second dimension (i.e. Z-direction in figure) arrangement
The image mosaic unit 10 set is handled；First dimension can be intersecting each other or orthogonal with the second dimension；It is final to realize
The splicing of the resolution ratio of first dimension and the second dimension, has been emitted higher resolution, more stable spliced image to be displayed.
Meanwhile the depth spare system 3 in each image mosaic unit 10 independently can apply multiple depth letter by the image to process
Breath, to effectively prevent VAC effect.Apply depth information while blockette is carried out in this way in a manner of space division multiplexing, it can be effectively real
Now more coherent more multiple depth information is additional, such as after being divided into 16 pieces of regions, and the depth information in this 16 pieces of regions can be by
Independent regulation, so that the depth information that final spliced picture is shown is in the plane that the first dimension and the second dimension form
It is more coherent and not high for the parameter request of each depth spare system 3.
First wave guide 6 and second waveguide 7 be coupled into end can may be for the same side it is not ipsilateral, can be according to being reached
Which type of determine whether to space layout ipsilateral.
Embodiment three:
Decoupling system can be a kind of decoupling direction, be also possible to a variety of decoupling directions, and the present embodiment introduces a variety of decouplings
A kind of application in direction.
Each decoupling system all has two or more decoupling direction；Image segmentation system can be by each subgraph
Picture is divided into two or more sub- view field image, and decoupling system in a time multiplexed manner regards its corresponding every height
Field picture presses corresponding decoupling direction outgoing, and all sub- view field images of each decoupling system exit are spliced into a secondary subgraph.Coupling
System is selected from spatial light modulator out, and spatial light modulator is selected from ferroelectric liquid crystals lens and blue phase liquid crystal lens.
Image segmentation unit can be along horizontal field of view or vertical field of view segmentation subgraph.Assuming that the horizontal field of view of subgraph
For H, vertical field of view V；The horizontal field of view of first sub- visual field is H1, vertical field of view V1；The horizontal field of view of second sub- visual field is
H2, vertical field of view V2；When dividing along horizontal field of view, H=H1+H2, V=V1=V2；When dividing along vertical field of view, V=
V1+V2, H=H1=H2.
Such as: based on the basis of first embodiment, in single image concatenation unit 10, the first decoupling system 60 has
Two kinds of decoupling directions, the respectively first deflection direction and the second deflection direction, the first decoupling system 60 can make by its decoupling
The direction of first light beam is the first deflection direction or the second deflection direction.
As shown in figure 4, illustrative, the first deflection direction is solid line, and the second deflection direction is dotted line, the first deflection direction
The angle in direction is deflected it is not limited here with second.Correspondingly, in the first image that image segmentation system is split out, image
Segmenting system carries out encoding regulator to the first image, realizes the first sub- visual field figure that the first image is generated in first time period T1
Picture generates the second sub- view field image of the first image, the first sub- view field image and the second sub- visual field figure in second time period T2
As collectively forming complete visual field, may be implemented to expand field angle.Correspondingly, the first decoupling system 60 outgoing first is inclined in T1
Turn first light beam in direction, the information carried is the first sub- view field image of the first image；The first decoupling system in T2
First light beam in 60 the second deflection of outgoing directions, the information carried is the second sub- view field image of the first image.When first
Sub- view field image and the second sub- view field image are switched fast, and synchronize make the first decoupling system 60 first deflection direction and
Second deflection direction is switched fast, and the first deflection direction of the first light beam and the second deflection direction just constitute complete view
, to realize the field stitching after the outgoing of the first image by time-multiplexed mode.Meanwhile first light beam first
Intersect in waveguide 6 with 60 many places of the first decoupling system and act on and be emitted from many places of the first decoupling system 60, to realize emergent pupil
The extension of diameter.
Illustratively, the image refresh rate of complete visual field is made to reach 60Hz if necessary, then the refresh rate of the first image
It need to be 120Hz, at this time it is considered that the image of complete visual field observed by human eye is continuous, and field angle is first
Deflect the angle in direction and the sum of the angle in the second deflection direction.
In addition, the first decoupling system 60 can also be achieved the deflection of more direction, such as inclined in the first deflection direction and second
The enterprising horizontal deflection in other directions for turning the intersection of plane locating for direction, just may be implemented in extended field of view angle on two-dimensional surface in this way, this
When time-multiplexed mode it is identical as the first deflection direction and the second deflection mode in direction, this will not be repeated here.First image
It is divided into four different view field images at this time, at this time if the image refresh rate of complete field of view is 60Hz, the first image
Refresh rate need to be 240Hz.
Equally, the second decoupling system 70 also has there are two types of decoupling direction, the respectively first deflection direction and the second deflection side
To the second decoupling system 70 can make to be deflected direction or the second deflection direction by the direction first of the second light beam of its decoupling.
As shown in figure 4, illustrative, the first deflection direction is solid line, and the second deflection direction is dotted line, and the first deflection direction and second is partially
Turn the angle in direction it is not limited here.Correspondingly, in the second image that image segmentation system is split out, image segmentation system
Encoding regulator is carried out to the second image, realizes and generates the first sub- view field image of the second image in first time period T1, the
The second sub- view field image of the second image, the first sub- view field image and the second sub- common structure of view field image are generated in two period T2
At complete visual field, may be implemented to expand field angle.Correspondingly, the first deflection of the second decoupling system 70 outgoing direction in T1
Second light beam, the information carried are the first sub- view field images of the second image；The second decoupling system 70 outgoing the in T2
Second light beam in two deflection directions, the information carried is the second sub- view field image of the second image.When the first sub- visual field figure
Picture and the second sub- view field image are switched fast, and synchronizing makes the second decoupling system 70 in the first deflection direction and the second deflection
Direction is switched fast, and the first deflection direction of the second light beam and the second deflection direction just constitute complete visual field, thus logical
Having crossed time-multiplexed mode realizes the field stitching after the outgoing of the second image.It is identical as the first decoupling system 60, the second coupling
System 70 can also realize the deflection of more direction out, also may be implemented in extended field of view angle on two-dimensional surface, time-multiplexed side
Formula is identical as the first deflection direction and the second deflection mode in direction, and this will not be repeated here, and process is identical as principle, does not do herein
It repeats.Meanwhile it is identical as the exit pupil diameter extended mode in first wave guide 6 in the exit pupil diameter extension in second waveguide 7.Most
The bigger visual field for being afterwards again emitted the first image of the bigger field angle that the first decoupling system 60 is emitted and the second decoupling system 70
Second image at angle is spliced, to realize that field angle splicing and resolution ratio are spelled simultaneously in single image concatenation unit 10
It connects.
The field stitching process of other image mosaic units 10 is identical with the above process, and this will not be repeated here.
In the present embodiment, what each image mosaic unit 10 was emitted is the subgraph of a bigger field angle, then will
The subgraph for the bigger field angle that each image mosaic unit 10 is emitted is spliced into the image to be displayed of bigger field angle, final real
Show and has expanded field angle while resolution ratio splicing.
First decoupling system 60 and the second decoupling system 70 be preferably selected from herein spatial light modulator, ferroelectric liquid crystals lens and
Blue phase liquid crystal lens etc..
Example IV:
On the basis of first embodiment or/and second embodiment, the structure of depth spare system 3 such as Fig. 5 and Fig. 6 institute
Show.
The work of depth spare system 3 is described in detail by taking the first fibre optic scanner 1 in single image concatenation unit 10 as an example
Process, principle and effect, referring to Fig. 5, figure is the first fibre optic scanner 1, depth spare system 3 and is set to the first optical fiber and sweeps
Retouch the arrangement schematic diagram of the colimated light system inside device 1.Wherein, the first light beam that the first fibre optic scanner 1 is launched is by collimation
Depth spare system 3 is irradiated in after system collimation.Depth spare system 3 includes multiple polymer stabilized nematic liquid crystals optoelectronic films
It (PSLC), is that transmissive state or scattering state are realized and shown by the state that time-multiplexed mode controls multiple PSLC films
Show the image with depth.In Fig. 5 embodiment, depth spare system 3 is for being arranged five PSLC films, as indicated in Fig. 5
PSLC film 131,132,133,134 and 135.
In the embodiment of the present invention, there are two types of states for the PSLC film, and one is scattering states, and one is transmissive states.
Scattering state and transmissive state can apply voltage by application voltage and not to switch.The PSLC film of general mode applies electricity
Pressure is transmissive state, and it is scattering state that voltage, which is not added,.
When needing to show the image of certain depth, this layer of PSLC film is changed into scattering state, laser beam illuminates at this time
Point can scatter light, become a pixel in space.Using the persistence of vision effect of human eye, [such as t whithin a period of time
(s) in], successively or intersect each layer PSLC filminess of change, [such as a total of n-layer PSLC film, then every layer of PSLC film is opened
Time is t/n (s)], to show many tomographic images in space, since PSLC thin-film multilayer is alternatively arranged, every layer of figure
Image distance is different with a distance from human eye observation's point.Due to persistence of vision effect, in t (s), these images can be by human eye as simultaneously
The image shown.The response time of usual PSLC film is several milliseconds (such as 2ms), and in order to utilize persistence of vision effect, t is logical
Often need to be less than 1/24 (s).Further, it subsequently enters first by the obtained image with depth that is time-multiplexed and is coupled into and be
System 4, then undergoes the process as described in first embodiment and/or second embodiment again.
In the embodiment of the present invention, colimated light system can be selected from being collimation lens, convex lens group, non-spherical lens group or Fresnel
Lens group.
In embodiments of the present invention, multiple transmissive display devices can be arranged in parallel, can parallel spaced set, compared with
Excellent embodiment are as follows: for multiple transmissive display devices using diopter as unit spaced set, i.e., adjacent two can be saturating
The distance between display device is penetrated to be configured as unit of diopter.
Embodiment five:
It further include zoom mould group identical with 10 quantity of image mosaic unit on the basis of being based on first embodiment,
It is arranged in a one-to-one correspondence on the emitting light path of single described image concatenation unit 10；Or, further including the zoom of more than one quantity
Mould group is set on the common emitting light path of all image mosaic units 10.
Such as shown in Fig. 2, the emergent light of multiple images concatenation unit 10 side be equipped with more than one zoom mould group 8,
Zoom mould group 8 can adjust the focal position of emergent light, to adapt to the crowd of different eyesights.Spatial light can be used in zoom mould group 8
The device of the same or like function such as modulator, lens.
Embodiment six:
Use any one or any group of embodiment one, embodiment two, embodiment three, example IV and embodiment five
It closes, the entirety that multiple images concatenation unit 10 is spliced into can be applied to nearly eye and show in equipment, and near-eye display device can be virtually
Real (Virtual Reality, VR) head-wearing display device, is also possible to augmented reality (Augmented Reality, AR) head
Wear display device or other.
And when being applied in near-eye display device as such as VR/AR, the consistency and integraty of total are outstanding
To be important, this can bring many benefits for near-eye display device, such as: structure is more clean and tidy, space utilization rate improves, reliability mentions
High, assembling difficulty reduction etc..Therefore fibre optic scanner preferably uses the fibre optic scanner of integrated molding formula in the present invention.
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 609 is set
It is placed in the first plane and the second plane.Be 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.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" or " comprising " are not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The present invention can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.In the unit claims listing several devices, several in these devices can be by same
Hardware branch embodies.The use of word first, second, and third does not indicate any sequence, can be by these word solutions
It is interpreted as title.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage:
The high-resolution display module of the embodiment of the present invention, by optic scanning generate laser beam and it is shaped after
It is irradiated in multiple spaced transmissive display devices.The complexity of optical path is effectively reduced by optic scanning
Degree, and the state by controlling the multiple spaced transmissive display device is that transmissive state or scattering state are realized
It shows the image with depth, effectively to avoid vision influx from adjusting the generation of conflict phenomenon, helps to improve user experience.
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 invention is not limited to specific embodiments above-mentioned.The present invention, 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 high-resolution display module, which is characterized in that including image segmentation system and at least two groups image mosaic unit；
Every group of described image concatenation unit includes fibre optic scanner, depth spare system and waveguide, each waveguide be equipped with the system that is coupled into and
Decoupling system, each fibre optic scanner are built-in with colimated light system；Described image segmenting system is used for the data of image to be displayed
It is split as the subgraph of quantity identical as image mosaic unit, one subgraph of each image mosaic cell processing；
In each image mosaic unit: the corresponding subgraph of image mosaic unit is collimated light beam by fibre optic scanner outgoing
Afterwards, through being coupled into waveguide by being coupled into system after depth spare system affix depth information, after being propagated in waveguide with total reflection
Through decoupling system decoupling；
Exit image of each subgraph after corresponding image mosaic unit is spliced into the image to be displayed.
2. high-resolution display module according to claim 1, which is characterized in that each decoupling system all has two
Kind or two or more decoupling directions；
Each subgraph can be divided into two or more sub- view field image, decoupling system by described image segmenting system
Its corresponding every sub- view field image is pressed into corresponding decoupling direction outgoing in a time multiplexed manner, each decoupling system goes out
All sub- view field images penetrated are spliced into a secondary subgraph.
3. high-resolution display module according to claim 2, which is characterized in that the decoupling system is selected from spatial light tune
Device processed, the spatial light modulator are selected from ferroelectric liquid crystals lens and blue phase liquid crystal lens.
4. high-resolution display module according to claim 2, it is characterised in that:
It further include zoom mould group identical with image mosaic element number, it is single that one-to-one correspondence is set to single described image splicing
On the emitting light path of member；
Or,
Further include the zoom mould group of more than one quantity, is set on the common emitting light path of all image mosaic units.
5. high-resolution display module according to claim 2, which is characterized in that the depth spare system includes multiple
Polymer stabilized nematic liquid crystals optoelectronic film PSLC controls the state of multiple PSLC films by time-multiplexed mode as transmission
State or scattering state realize that display has the image of depth, scattering state and transmissive state by applying voltage and not applying electricity
Pressure is to switch.
6. high-resolution display module according to claim 5, which is characterized in that multiple PSLC are arranged in parallel or put down
Row spaced set.
7. high-resolution display module according to claim 6, which is characterized in that the fibre optic scanner includes that scanning is driven
Dynamic device and optical fiber, optical fiber is fixedly connected with scanner driver and the front end of optical fiber is beyond scanner driver formation optical fiber cantilever, institute
Stating scanner driver includes: to be integrally formed and along sequentially connected first actuation part in direction from back to front, 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, and the optical fiber is fixed
In interior electrode hole, the first actuation part and the second actuation part include piezoelectric material ontology, the piezoelectric material sheet of the first actuation part
There are two being parallel to each other and perpendicular to the first lateral surface of first axle, each first lateral surface is provided with outside one first body tool
Electrode, the piezoelectric material ontology tool of the second actuation part is 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 a second external electrode, and first axle and the second axis are each perpendicular to front-rear direction and are mutually perpendicular to, interior
The inner wall of electrode hole is provided with the interior electrode matched with the first external electrode and the second external electrode.
8. high-resolution display module according to claim 7, which is characterized in that the piezoelectric material of second actuation part
The intrinsic frequency of ontology is greater than the intrinsic frequency of the piezoelectric material of the first actuation part.
9. high-resolution display module according to claim 7 or 8, which is characterized in that the interior electrode hole is circle
Hole or square hole include parallel with the first lateral surface two first in the hole wall of square hole when interior electrode hole is square hole
Plane and two second planes parallel with the second lateral surface, interior electrode are set to the first plane and the second plane.
10. high-resolution display module according to claim 9, which is characterized in that the first external electrode is connected with
One film conductive layer, the first film conductive layer insulation are pasted on the surface of the first actuation part；The second external electrode connects
It is connected to the second film conductive layer, the insulation of the second film conductive layer is covered on the first actuation part and isolation part outer surface.
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| CN201810739226.1A CN109001907A (en) | 2018-07-06 | 2018-07-06 | A kind of high-resolution display module |
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| CN201810739226.1A CN109001907A (en) | 2018-07-06 | 2018-07-06 | A kind of high-resolution display module |
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Application publication date: 20181214 |