CN105892075A - Holographic display system and holographic display method - Google Patents
Holographic display system and holographic display method Download PDFInfo
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- CN105892075A CN105892075A CN201610405267.8A CN201610405267A CN105892075A CN 105892075 A CN105892075 A CN 105892075A CN 201610405267 A CN201610405267 A CN 201610405267A CN 105892075 A CN105892075 A CN 105892075A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 93
- 239000011521 glass Substances 0.000 claims description 33
- 239000004973 liquid crystal related substance Substances 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 19
- 230000005684 electric field Effects 0.000 claims description 15
- 238000001093 holography Methods 0.000 claims description 7
- 230000010287 polarization Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2294—Addressing the hologram to an active spatial light modulator
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a holographic display system and a holographic display method, relates to the technical field of display, and can prevent other persons from obtaining holographic three-dimensional image information and ensure the safety of user information when providing the holographic three-dimensional image information for a user. The holographic display system comprises a display device and a pair of peep-proof spectacles, wherein the display device comprises backlight for generating laser beams, a data processor and a first spatial light modulator, wherein the data processor is used for generating holographic coding data according to to-be-displayed holographic three-dimensional image information, and dividing the holographic coding data into first sub-holographic coding data and second sub-holographic coding data; and the first spatial light modulator comprises multiple first pixels and is used for modulating the laser beams emitted into each first pixel according to the first sub-holographic coding data. The pair of peep-proof spectacles comprises a second spatial light modulator, wherein the second spatial light modulator is connected with the data processor, comprises multiple second pixels and is used for modulating the laser beams emitted into the each second pixel according to the second sub-holographic coding data. The holographic display system and the holographic display method provide safe holographic three-dimensional information for the user.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of holographic display system and holographic display packing.
Background technology
At present, for improving the viewing experience of user, display system is often designed with and can provide the user three
The function of dimension image information.Specifically, the work process of the display system with above-mentioned functions is: will display
The light that the pixel column of left-eye image sends is projected to the left eye of observer, by the pixel column of display eye image
The light sent is projected to the right eye of observer, thus the left-eye image that observer can observe according to left eye
The eye image compositing 3 d images information in the brain observed with right eye.
But, inventors herein have recognized that, although above-mentioned display system can provide the user 3-D view
Information, but other staff can also obtain this three-dimensional image information, it is impossible to ensure the safety of user profile.
Summary of the invention
It is an object of the invention to provide a kind of holographic display system and holographic display packing, for carrying for user
For, while hologram three-dimensional image information, preventing other staff from obtaining this hologram three-dimensional image information, it is ensured that use
The safety of family information.
For reaching above-mentioned purpose, the holographic display system that the present invention provides adopts the following technical scheme that
A kind of holographic display system, this holographic display system includes display device and peep-proof glasses；Wherein, institute
Stating display device to include: backlight, described backlight is used for producing laser beam；Data processor, at described data
Reason device is for generating holographic encoding data according to hologram three-dimensional image information to be shown, and described holography is compiled
Code data are divided into the first sub-holographic encoding data and the second sub-holographic encoding data；With described data processor even
The first spatial light modulator connect, described first spatial light modulator includes multiple first pixel, described first
Spatial light modulator is for according to described first sub-holographic encoding data, to being incident to each described first pixel
Laser beam be modulated；Described peep-proof glasses include: second space photomodulator, described second space light
Manipulator is connected with described data processor, and the incidence surface of described second space photomodulator is towards described first
The exiting surface of spatial light modulator, described second space photomodulator includes multiple second pixel, described second
Spatial light modulator is for according to described second sub-holographic encoding data, to being incident to each described second pixel
Laser beam be modulated.
Owing to holographic display system provided by the present invention includes structure as above, therefore, backlight sent
Laser beam inject each first pixel in the first spatial light modulator after, can by the first sub-holographic encoding number
According to being modulated, the laser beam after the first sub-holographic encoding data modulation, after the first pixel injection, is injected
In the second pixel in second space photomodulator, and modulated by the second sub-holographic encoding data, so that
The laser beam that sent of the second pixel can be respectively by the first sub-holographic encoding data and the second sub-holographic encoding
Data are modulated, owing to the first sub-holographic encoding data and the second sub-holographic encoding data constitute complete complete
Cease coded data, and holographic encoding data are to utilize hologram three-dimensional image information to be shown to be generated, i.e.
Holographic encoding data carry complete hologram three-dimensional image information to be shown, so that the second pixel institute
The laser beam sent carries complete hologram three-dimensional image information to be shown, and then makes this laser beam energy
It is enough in formation hologram three-dimensional image information, therefore, when user wears peep-proof glasses, provided by the present invention
Holographic display system can provide the user hologram three-dimensional image information, and other personnel do not wear peep-proof
Glasses, cause these personnel can only obtain the laser beam that the first pixel is sent, owing to the first pixel is sent
Laser beam only modulated by the first sub-holographic encoding data, so that the laser beam that the first pixel is sent
Only carry the hologram three-dimensional image information to be shown of part, cause this laser beam can not be used for being formed entirely
Breath three-dimensional image information such that it is able to prevent other staff from obtaining this hologram three-dimensional image information, it is ensured that use
The safety of family information.
Present invention also offers a kind of holographic display packing, this holography display packing is used for holographic display system,
Described holographic display system includes display device and peep-proof glasses, and described display device includes multiple first sub-picture
Element, described peep-proof glasses include multiple second sub-pixel；Described holographic display packing includes: according to be shown
Hologram three-dimensional image information generate holographic encoding data, and described holographic encoding data are divided into the of synchronization
One sub-holographic encoding data and the second sub-holographic encoding data；Laser beam is provided to the first pixel each described,
According to described first sub-holographic encoding data, the laser beam being incident to each described first pixel is modulated；
It is incident to each described second pixel to through the first pixel each described according to described second sub-holographic encoding data
Laser beam be modulated, to form hologram three-dimensional image information.
Owing to holographic display packing provided by the present invention includes above step, therefore, when laser beam is injected aobvious
After each first pixel of showing device, can be modulated by the first sub-holographic encoding data, holographic through the first son
Laser beam after coded data modulation, after the first pixel injection, is injected in the second pixel in peep-proof glasses,
And modulated by the second sub-holographic encoding data, so that the laser beam that the second pixel is sent can be distinguished
Modulated by the first sub-holographic encoding data and the second sub-holographic encoding data, due to the first sub-holographic encoding number
Constitute complete holographic encoding data according to the second sub-holographic encoding data, and holographic encoding data are to utilize
Hologram three-dimensional image information to be shown is generated, i.e. holographic encoding data carry complete to be shown
Hologram three-dimensional image information, so that the laser beam that the second pixel is sent carries complete to be shown
Hologram three-dimensional image information, so make this laser beam can be used in formed hologram three-dimensional image information, therefore,
When user wears peep-proof glasses, holographic display packing provided by the present invention can provide the user holographic three
Dimension image information, and other personnel do not wear peep-proof glasses, cause these personnel can only obtain the first pixel
The laser beam sent, the laser beam sent due to the first pixel is only adjusted by the first sub-holographic encoding data
System, so that the laser beam that the first pixel is sent only carries the hologram three-dimensional image to be shown of part
Information, causes this laser beam can not be used for forming hologram three-dimensional image information such that it is able to prevent other people
Member obtains this hologram three-dimensional image information, it is ensured that the safety of user profile.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creative labor
On the premise of Dong, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the light path schematic diagram of the holographic display system in the embodiment of the present invention one；
Fig. 2 is the structural representation of the first spatial light modulator in the embodiment of the present invention one；
Fig. 3 is the structural representation of the second space photomodulator in the embodiment of the present invention one；
Fig. 4 is the structural representation of the holographic display system in the embodiment of the present invention one；
Fig. 5 is the structural representation of the first spatial light modulator in the embodiment of the present invention two；
Fig. 6 is the structural representation of the second space photomodulator in the embodiment of the present invention two；
Fig. 7 is the flow chart of the holographic display packing in the embodiment of the present invention three.
Description of reference numerals:
1-display device；2-peep-proof glasses；3-backlight；
31-laser instrument；32-beam expanding lens；4-battery of lens；
5-the first spatial light modulator；51-the first pixel；6-data processor；
61-holographic data maker；62-data synchronizing unit；7-second space photomodulator；
71-the second pixel；8-first substrate；9-second substrate；
10-the first liquid crystal layer；11-the first pixel electrode；12-the first public electrode；
13-the first driver；14-the 3rd substrate；15-tetrabasal；
16-the second liquid crystal layer；17-the second pixel electrode；18-the second public electrode；
19-the first polaroid；20-the second polaroid；21-the second driver；
22-the 5th substrate；23-the 6th substrate；24-the 3rd liquid crystal layer；
25-the 3rd pixel electrode；26-the 3rd public electrode；27-the 3rd polaroid；
28-the 3rd driver；29-the 7th substrate；30-the 8th substrate；
31-the 4th liquid crystal layer；32-the 4th pixel electrode；33-the 4th public electrode；
34-the 4th polaroid；35-fourth drive；36-position sensor；
37-signal receiver；38-computer；39-controller.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.
Embodiment one
Embodiments provide a kind of holographic display system, as it is shown in figure 1, this holographic display system bag
Include display device 1 and peep-proof glasses 2, this peep-proof glasses 2 and display device 1 with the use of.
Wherein, display device 1 includes backlight 3, data processor 6 and the first spatial light modulator 5.Backlight
3 are used for producing laser beam.Data processor 6 is for generating holography according to hologram three-dimensional image information to be shown
Coded data, and holographic encoding data are divided into the first sub-holographic encoding data and the holographic volume of the second son of synchronization
Code data.First spatial light modulator 5 is connected with data processor 6, and the first spatial light modulator 5 includes
Multiple first pixels 51, the first spatial light modulator 5 is for according to the first sub-holographic encoding data, to incidence
Laser beam to each the first pixel 51 is modulated.
Peep-proof glasses 2 include second space photomodulator 7, second space photomodulator 7 and data processor 6
Connect, user wear peep-proof glasses 2 observe display device 1 time, second space photomodulator 7 enter light
Exiting surface facing to the first spatial light modulator 5；Second space photomodulator 7 includes multiple second pixel
71, second space photomodulator 7 is for according to the second sub-holographic encoding data, to being incident to each the second picture
The laser beam of element 71 is modulated.
The holographic display system provided due to the embodiment of the present invention includes structure as above, therefore, by backlight 3
After the laser beam sent injects each first pixel 51 in the first spatial light modulator 5, can be by the first son
Holographic encoding data are modulated, and the laser beam after the first sub-holographic encoding data modulation is from the first pixel 51
After injection, inject in the second pixel 71 in second space photomodulator 7, and by the second sub-holographic encoding number
According to being modulated, so that the laser beam that the second pixel 71 is sent can be respectively by the first sub-holographic encoding number
Modulated according to the second sub-holographic encoding data, due to the first sub-holographic encoding data and the second sub-holographic encoding
Data constitute complete holographic encoding data, and holographic encoding data are to utilize hologram three-dimensional figure to be shown
As information is generated, i.e. holographic encoding data carry complete hologram three-dimensional image information to be shown,
So that the laser beam that the second pixel 71 is sent carries complete hologram three-dimensional image letter to be shown
Breath, and then make this laser beam can be used in forming hologram three-dimensional image information, therefore, when user wears anti-
When peeping glasses 2, the holographic display system that the embodiment of the present invention is provided can provide the user hologram three-dimensional figure
As information, and other personnel do not wear peep-proof glasses 2, cause these personnel can only obtain the first pixel 51
The laser beam sent, the laser beam sent due to the first pixel 51 is only by the first sub-holographic encoding data institute
Modulation, so that the laser beam that the first pixel 51 is sent only carries the hologram three-dimensional to be shown of part
Image information, causes this laser beam can not be used for forming hologram three-dimensional image information such that it is able to prevent it
He personnel obtain this hologram three-dimensional image information, it is ensured that the safety of user profile.
It should be noted that multiple first pixels in the present embodiment, included by the first spatial light modulator 5
51 with multiple second preferred one_to_one corresponding of pixel 71 included by second space photomodulator 7, say, that
Multiple first pixels 51 are equal with the quantity of multiple second pixels 71, and position is corresponding, in order to from
The laser beam of one pixel 51 outgoing can be incident in the second pixel 71 of correspondence.
Additionally, for modulating a certain laser beam, can make up complete holographic encoding data in the present embodiment
First sub-holographic encoding data and the second sub-holographic encoding data are preferably the first sub-holographic encoding data synchronized
With the second sub-holographic encoding data.
It addition, second space photomodulator 7 can be arranged in the right eye picture frame of peep-proof glasses 2, for use as
The right eye eyeglass of peep-proof glasses 2.Certainly, second space photomodulator 7 is can also be arranged on peep-proof glasses 2
Left eye picture frame in, for use as the left eyeglass lens of peep-proof glasses 2.With second space photomodulator 7 in Fig. 1
Illustrate as a example by being arranged in the right eye picture frame of peep-proof glasses 2.
In the present embodiment, the information content entrained by the first sub-holographic encoding data and the second sub-holographic encoding number
Following two situation specifically can be included: situation one, the first sub-holographic encoding number according to entrained information content
According to carrying phase information, the second sub-holographic encoding data carry amplitude information；Situation two, the first son is complete
Breath coded data carries amplitude information, and the second sub-holographic encoding data carry phase information.
When the first sub-holographic encoding data carry phase information, the second sub-holographic encoding data carry amplitude
During information, as in figure 2 it is shown, the first spatial light modulator 5 includes the first substrate 8 and second being oppositely arranged
Substrate 9, is provided with the first liquid crystal layer 10 between first substrate 8 and second substrate 9, first substrate 8 is dorsad
The side of the side of second substrate 9 or second substrate 9 first substrate 8 dorsad is the first spatial light modulator 5
Incident side；First substrate 8 is provided with multiple first pixel electrode 11 on the face of second substrate 9, the
One pixel electrode 11 and the first pixel 51 one_to_one corresponding, second substrate 9 sets on the face of first substrate 8
It is equipped with the first public electrode 12.
When first spatial light modulator 5 with said structure works, the first pixel electrode 11 can be passed through
And size V of the electric field formed between the first public electrode 12 controls the liquid crystal molecule in the first pixel 51
Deflection so that the wave vector side of the director orientation of liquid crystal molecule and the laser beam being incident to the first pixel 51
Change to the angle theta formed, i.e. θ=σ (V).Further, automatically controlled two-fold by liquid crystal molecule
Penetrate effect to understand, be incident to the laser beam of the first pixel 51 amount of phase modulation δ after the first pixel 51
Change along with the change of θ, i.e. δ=φ (θ)=φ [σ (V)], i.e. can be by regulating the first pixel electricity
Size V of the electric field formed between pole 11 and the first public electrode 12, controls to be incident to the first pixel
The laser beam of 51 amount of phase modulation δ after the first pixel 51, due to the first pixel electrode 11 and first
Pixel 51 one_to_one corresponding, so that the phase place being incident to the laser beam of each the first pixel 51 all can be only
On the spot modulated.
Further, as in figure 2 it is shown, the first spatial light modulator 5 also includes the first driver 13, data
Processor the 6, first public electrode 12 and each the first pixel electrode 11 are connected with the first driver 13 respectively,
First driver 13 carries the first sub-holographic encoding data of phase information for basis, controls first public
The size of the electric field formed between electrode 12 and each the first pixel electrode 11, such that it is able to realize carrying
There is the phase place of the first sub-holographic encoding data of phase information laser beam to being incident to each the first pixel 51
Modulation.
Additionally, as it is shown on figure 3, second space photomodulator 7 includes the 3rd substrate 14 and being oppositely arranged
Tetrabasal 15, is provided with the second liquid crystal layer 16 between the 3rd substrate 14 and tetrabasal 15, the 3rd substrate 14
The side of tetrabasal 15 or the side of tetrabasal 15 the 3rd substrate 14 dorsad are second space light dorsad
The incident side of manipulator 7；3rd substrate 14 is provided with multiple second pixel on the face of tetrabasal 15
Electrode 17, the second pixel electrode 17 and the second pixel 71 one_to_one corresponding, tetrabasal 15 is towards the 3rd substrate
The second public electrode 18 it is provided with on the face of 14；It is provided with on the face of the 3rd substrate 14 tetrabasal 15 dorsad
First polaroid 19, the face of tetrabasal 15 the 3rd substrate 14 dorsad is provided with the second polaroid 20.Need
If being noted that, the side of the 3rd substrate 14 tetrabasal 15 dorsad is second space photomodulator 7
Incident side, then the laser beam being incident to the second pixel 71 injects from the first polaroid 19, and from the second polarisation
Sheet 20 penetrates；If the side of tetrabasal 15 the 3rd substrate 14 dorsad is entering of second space photomodulator 7
Light side, then the laser beam being incident to the second pixel 71 injects from the second polaroid 20, and from the first polaroid
19 injections.The embodiment of the present invention is injected from the first polaroid 19 with the laser beam being incident to the second pixel 71,
And illustrate as a example by the second polaroid 20 injection.
When the second space photomodulator 7 with said structure works, it is incident to the laser of the second pixel 71
Bundle forms line polarized light, from the twisted effect of liquid crystal molecule, this linear polarization after the first polaroid 19
Light when the second liquid crystal layer 16, the polarization direction of this line polarized light all the time with the long axis direction one of liquid crystal molecule
Cause.It is possible to further the electric field control formed by the second pixel electrode 17 and the second public electrode 18
Make the deflection of liquid crystal molecule in the second pixel 71, so that the orientation of the major axis of liquid crystal molecule becomes
Change, therefore, it can the electric field formed by the second pixel electrode 17 and the second public electrode 18, control
When above-mentioned line polarized light arrives the second polaroid 20, the polarization direction of this line polarized light and the second polaroid 20
Light transmission shaft direction between angle, and then be capable of the light to the laser beam that the second pixel 71 is sent
Strong control, due to the second pixel electrode 17 and the second pixel 71 one_to_one corresponding, so that be incident to each
The light intensity of the laser beam of individual second pixel 71 all can be modulated independently.
Further, as it is shown on figure 3, second space photomodulator 7 also includes the second driver 21, data
Processor the 6, second public electrode 18 and each the second pixel electrode 17 are connected with the second driver 21 respectively,
Second driver 21 carries the second sub-holographic encoding data of amplitude information for basis, controls second public
The size of the electric field formed between electrode 18 and each the second pixel electrode 17, such that it is able to realize carrying
There is the tune of the light intensity of the second sub-holographic encoding data of amplitude information laser beam to being incident to the second pixel 71
System.
It should be noted that the concrete structure of the first spatial light modulator 5 and second space photomodulator 7
Concrete structure is not limited to the above, and those skilled in the art can the most rationally select.
Additionally, as it is shown in figure 1, backlight 3 can include laser instrument 31 and be arranged on laser instrument 31 go out light
The beam expanding lens 32 of side, such that it is able to by beam expanding lens 32 to the diameter of the laser beam that laser instrument 31 is sent and
The angle of divergence is modulated, and then backlight 3 can be made can to provide uniform sharp for the first spatial light modulator 5
Light beam, is favorably improved the display effect of holographic display system.Exemplarily, laser instrument 31 can be gas
One in laser instrument, solid state laser, semiconductor laser and fuel laser instrument.
Further, the holographic display system that the embodiment of the present invention is provided can have the work that following two is different
Operation mode: mode of operation one, the laser beam that laser instrument 31 is sent in a frame time of display device 1
Color is constant, and in this operating mode, user can only observe one in a frame time of display device 1
Plant the hologram three-dimensional image information of color.Such as, when laser instrument 31 institute in a frame time of display device 1
The color of the laser beam sent is for time blue, and user can only observe indigo plant in a frame time of display device 1
The hologram three-dimensional image information of color.Mode of operation two, a frame time of display device 1 includes three time periods,
Within each time period, the color of the laser beam that laser instrument 31 is sent is in red, green and blueness
Kind, and within any two time period, the color of the laser beam that laser instrument 31 is sent is different.In this work
Under operation mode, user is obtained in that the hologram three-dimensional of three kinds of different colours in a frame time of display device 1
Image information, owing to human eye exists visual persistence phenomenon so that user can be according to above-mentioned three kinds of different colours
Hologram three-dimensional image information synthesize in the brain colour hologram three-dimensional image information.
Additionally, as shown in Figure 4, peep-proof glasses 2 may also include position sensor 36, and position sensor 36 is used
In detecting the second space photomodulator 7 locus coordinate relative to the first spatial light modulator 5.Display
Device 1 may also include signal receiver 37, computer 38, controller 39 and battery of lens 4, between them
Annexation be that signal receiver 37, computer 38, controller 39 and battery of lens 4 are sequentially connected with, this
Outward, signal receiver 37 is also connected with position sensor 36, and what battery of lens 4 was arranged at backlight 3 goes out light path
(Fig. 1 is seen), the propagation of the laser beam that each lens in battery of lens 4 are preferably sent along backlight 3 on footpath
Direction arranges；Wherein, computer 38 enters for the locus coordinate received according to signal receiver 37
Row calculates, and exports result of calculation；Controller 39 is used for controlling battery of lens 4 according to result of calculation, so that the
The laser beam that one pixel 51 is sent is incident in the second corresponding pixel 71；Battery of lens 4 is used for making
The laser beam that one pixel 51 is sent is incident in the second pixel 71, it should be noted that battery of lens 4 can
To be arranged on the incident side (as shown in Figure 1) of the first spatial light modulator 5, battery of lens 4 can also be arranged on
The light emission side of the first spatial light modulator 5.
When the head of user moves, the position of the peep-proof glasses 2 being worn on user also can be moved,
So that second space photomodulator 7 changes relative to the position of the first spatial light modulator 5, this
Time, position sensor 36 can detect that second space photomodulator 7 is relative to the first spatial light modulator 5
Locus coordinate, and by this locus coordinate transmission to signal receiver 37, computer 38 is for root
The locus coordinate received according to signal receiver 37 calculates, and exports result of calculation, controller 39
Controlling battery of lens 4 according to this result of calculation, the laser beam making the first pixel 51 be sent can be incident to all the time
In the second corresponding pixel 71, therefore, even if the head of user there occurs movement, holographic display system is also
Hologram three-dimensional image information can be provided the user.
Further, inventors herein have recognized that, when second space photomodulator 7 is relative to the first space
When the position of photomodulator 5 changes, the laser beam sent from the first pixel 51 is incident to the second pixel
Required for 71, the optical path difference of process also can change so that is incident to the phase place of the laser beam of the second pixel 71
There is certain deviation, the hologram three-dimensional image information causing holographic display system to be provided by user is the most accurate
Really.For avoiding this problem, as shown in Figure 6, computer 38 is also connected with data processor 6, and data process
Second sub-holographic encoding data are carried out phase place by the result of calculation that device 6 can also be exported according to computer 38
Compensate.
Additionally, the concrete structure of data processor 6 can have multiple, those skilled in the art can be according to reality
Border needs to select.Exemplarily, as shown in Figure 6, data processor 6 includes holographic data maker
61 and data synchronizing unit 62, wherein, holographic data maker 61 is for according to hologram three-dimensional figure to be shown
As information generates holographic encoding data, and holographic encoding data are divided into the first sub-holographic encoding data and second
Sub-holographic encoding data；Data synchronizing unit 62 respectively with holographic data maker the 61, first spatial light modulator
5 and second space photomodulator 7 connect, for the first sub-holographic encoding data and the second sub-holographic encoding number
According to carrying out synchronization process.
Embodiment two
Embodiments providing a kind of holographic display system, this holographic display system is carried with embodiment one
The structure of the holographic display system of confession is similar to, except that, the holographic display system that the present embodiment is provided
In, the first sub-holographic encoding data carry amplitude information, the second sub-holographic encoding data carry phase place letter
Breath, corresponding this situation, as it is shown in figure 5, the of the display device of the holographic display system in the present embodiment
One spatial light modulator 5 includes the 5th substrate 22 and the 6th substrate 23 being oppositely arranged, and the 5th substrate 22 sets
Put the incident side in the first spatial light modulator 5, between the 5th substrate 22 and the 6th substrate 23, be provided with
Three liquid crystal layers 24, the face of the 5th substrate 22 the 6th substrate 23 dorsad is provided with the 3rd polaroid 27, and the 5th
Substrate 22 is provided with multiple 3rd pixel electrode 25, the 3rd pixel electrode 25 on the face of the 6th substrate 23
With the first pixel 51 one_to_one corresponding, the 6th substrate 23 is public towards being provided with the 3rd on the face of the 5th substrate 22
Electrode 26.When first spatial light modulator 5 with said structure works, it is incident to the first pixel 51
Laser beam forms line polarized light after the 3rd polaroid 27, and the polarization direction of this line polarized light can be by the 3rd
The electric field formed between pixel electrode 25 and the 3rd public electrode 26 is controlled, due to the 3rd pixel electrode
25 and first pixel 51 one_to_one corresponding, so that be incident to the polarization of the laser beam of each the first pixel 51
Direction all can be modulated independently.
Further, as it is shown in figure 5, the first spatial light modulator 5 also includes the 3rd driver 28, the 3rd
Driver 28 is connected with data processor the 6, the 3rd public electrode 26 and each the 3rd pixel electrode 25 respectively,
For according to carrying the first sub-holographic encoding data of amplitude information, control the 3rd public electrode 26 and each
The size of the electric field formed between the 3rd pixel electrode 25, such that it is able to realize carrying the of amplitude information
The modulation of the polarization direction of the one sub-holographic encoding data laser beam to being incident to each the first pixel 51.
Additionally, as shown in Figure 6, the second space light of the peep-proof glasses of the holographic display system in the present embodiment
Manipulator 7 includes the 7th substrate 29 and the 8th substrate 30 being oppositely arranged, and the 7th substrate 29 is arranged on second
The incident side of spatial light modulator 7, is provided with the 4th liquid crystal layer between the 7th substrate 29 and the 8th substrate 30
31, the face of the 7th substrate 29 the 8th substrate 30 dorsad is provided with the 4th polaroid 34, the 7th substrate 29 court
Multiple 4th pixel electrode 32, the 4th pixel electrode 32 and the second picture it is provided with on the face of the 8th substrate 30
Element 71 one_to_one corresponding, the 8th substrate 30 is provided with the 4th public electrode 33 on the face of the 7th substrate 29.
When the second space photomodulator 7 with said structure works, be above analyze, be incident to
The laser beam of the first pixel 51 forms line polarized light after the 3rd polaroid 27, so that the first pixel
51 laser beams sent are line polarized light, owing to being incident to the laser beam of the second pixel 71 for corresponding thereto
The laser beam that sent of the first pixel 51 so that be incident to the laser beam of the second pixel 71 also for line
Polarized light, and the electric field owing to being formed between the 3rd pixel electrode 25 and the 3rd public electrode 26 can
Control the polarization direction of this line polarized light such that it is able to control polarization direction and the 4th polarisation of this line polarized light
The angle that the direction of the light transmission shaft of sheet 34 is formed, and then can be to the laser beam being incident to the second pixel 71
Light intensity be modulated.It is possible to further by the 4th pixel electrode 32 and the 4th public electrode 33 institute
The electric field formed, controls the laser beam being incident to the second pixel 71 phase-modulation after the second pixel 71
Amount, due to the 4th pixel electrode 32 and the second pixel 71 one_to_one corresponding so that be incident to each second
The phase place of the laser beam of pixel 71 all can be modulated independently.
Further, as shown in Figure 6, second space photomodulator 7 also includes fourth drive 35, the 4th
Driver 35 is connected with data processor the 6, the 4th public electrode 33 and each the 4th pixel electrode 32 respectively,
For according to carrying the second sub-holographic encoding data of phase information, control the 4th public electrode 33 and each
The size of the electric field formed between the 4th pixel electrode 32, such that it is able to realize carrying the of phase information
The modulation of the phase place of the two sub-holographic encoding data laser beam to being incident to each the second pixel 71.
It should be noted that the concrete structure of the first spatial light modulator 5 and second space photomodulator 7
Concrete structure is not limited to the above, and those skilled in the art can the most rationally select.
Embodiment three
Embodiments providing a kind of holographic display packing, this holography display packing shows system for holography
System.Described holographic display system includes display device and peep-proof glasses, and described display device includes multiple first
Sub-pixel, described peep-proof glasses include multiple second sub-pixel.As it is shown in fig. 7, described holographic display packing
Comprise the following steps:
Step S101: generate holographic encoding data according to hologram three-dimensional image information to be shown, and by described
Holographic encoding data are divided into the first sub-holographic encoding data and the second sub-holographic encoding data of synchronization.
Step S102: provide laser beam, according to described first sub-holographic encoding number to the first pixel each described
It is modulated according to the laser beam being incident to each described first pixel.
Step S103: be incident to respectively through the first pixel each described according to described second sub-holographic encoding data
The laser beam of individual described second pixel is modulated, to form hologram three-dimensional image information.
The holographic display packing provided due to the embodiment of the present invention includes above step, therefore, works as laser beam
After injecting each first pixel 51 of display device, can be modulated by the first sub-holographic encoding data, Jing Guo
Laser beam after one sub-holographic encoding data modulation, after the first pixel 51 injection, injects the second of peep-proof glasses
In pixel 71, and modulated by the second sub-holographic encoding data, so that what the second pixel 71 was sent
Laser beam can be modulated by the first sub-holographic encoding data and the second sub-holographic encoding data respectively, due to
One sub-holographic encoding data and the second sub-holographic encoding data constitute complete holographic encoding data, and holographic
Coded data is to utilize hologram three-dimensional image information to be shown to be generated, i.e. holographic encoding data carry
Complete hologram three-dimensional image information to be shown, so that the laser beam that the second pixel 71 is sent carries
Complete hologram three-dimensional image information to be shown, and then make this laser beam can be used in forming holographic three
Dimension image information, therefore, when user wears peep-proof glasses 2, the holography that the embodiment of the present invention is provided shows
Show that system can provide the user hologram three-dimensional image information, and other personnel do not wear peep-proof glasses 2, lead
Cause these personnel and can only obtain the laser beam that the first pixel 51 is sent, owing to the first pixel 51 is sent
Laser beam is only modulated by the first sub-holographic encoding data, so that the laser beam that the first pixel 51 is sent
Only carry the hologram three-dimensional image information to be shown of part, cause this laser beam can not be used for being formed entirely
Breath three-dimensional image information such that it is able to prevent other staff from obtaining this hologram three-dimensional image information, it is ensured that use
The safety of family information.
Above-mentioned holographic display packing can be applied particularly to the holographic display system as described in embodiment one and embodiment two
System.When above-mentioned holographic display packing is applied in the holographic display system as described in embodiment one and embodiment two
Time, in conjunction with Fig. 1, each step of above-mentioned holographic display packing particularly as follows:
Step S101: the data processor 6 of holographic display system is according to hologram three-dimensional image information to be shown
Generate holographic encoding data, and holographic encoding data are divided into the first sub-holographic encoding data and second of synchronization
Sub-holographic encoding data.
Step S102: the backlight 3 of holographic display system is to the first spatial light modulator 5 of holographic display system
Each first pixel 51 laser beam is provided, the first spatial light modulator 5 is according to the first sub-holographic encoding data
The laser beam being incident to each the first pixel 51 is modulated.
Step S103: the second space photomodulator 7 of holographic display system is according to the second sub-holographic encoding data
The laser beam of each the second pixel 71 being incident to second space photomodulator 7 is modulated, complete to be formed
Breath three-dimensional image information.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should
It is as the criterion with described scope of the claims.
Claims (17)
1. a holographic display system, it is characterised in that include display device and peep-proof glasses；Wherein,
Described display device includes: backlight, and described backlight is used for producing laser beam；Data processor, described
Data processor is used for generating holographic encoding data according to hologram three-dimensional image information to be shown, and by described
Holographic encoding data are divided into the first sub-holographic encoding data and the second sub-holographic encoding data；At described data
The first spatial light modulator that reason device connects, described first spatial light modulator includes multiple first pixel, institute
State the first spatial light modulator for according to described first sub-holographic encoding data, to be incident to each described
The laser beam of one pixel is modulated；
Described peep-proof glasses include: second space photomodulator, described second space photomodulator and described number
Connecting according to processor, the incidence surface of described second space photomodulator is towards described first spatial light modulator
Exiting surface, described second space photomodulator includes multiple second pixel, and described second space photomodulator is used
According to described second sub-holographic encoding data, the laser beam being incident to each described second pixel is adjusted
System.
Holographic display system the most according to claim 1, it is characterised in that described first spatial light is adjusted
Multiple first pixels included by device processed and multiple second pixels one included by described second space photomodulator
One is corresponding.
Holographic display system the most according to claim 1 and 2, it is characterised in that described first son is complete
Coded data carries phase information to breath, described second sub-holographic encoding data carry amplitude information, described
First spatial light modulator includes first substrate and the second substrate being oppositely arranged, described first substrate and described
Be provided with the first liquid crystal layer between second substrate, the side of the most described second substrate of described first substrate or
The side of the most described first substrate of described second substrate is the incident side of described first spatial light modulator；Institute
State first substrate and be provided with multiple first pixel electrode, described first pixel on the face of described second substrate
Electrode and described first pixel one_to_one corresponding, described second substrate is provided with on the face of described first substrate
First public electrode.
Holographic display system the most according to claim 3, it is characterised in that described first spatial light is adjusted
Device processed also includes the first driver, described data processor, described first public electrode and each described first
Pixel electrode is connected with described first driver respectively, and described first driver is for according to carrying described phase
The described first sub-holographic encoding data of position information, control described first public electrode and each described first picture
The size of the electric field formed between element electrode.
Holographic display system the most according to claim 3, it is characterised in that described second space light is adjusted
Device processed includes the 3rd substrate and the tetrabasal being oppositely arranged, between described 3rd substrate and described tetrabasal
It is provided with the second liquid crystal layer, the side of the described 3rd the most described tetrabasal of substrate or described tetrabasal
The incident side that side is described second space photomodulator of the most described 3rd substrate；Described 3rd substrate court
Multiple second pixel electrode it is provided with, described second pixel electrode and described the on the face of described tetrabasal
Two pixel one_to_one corresponding, described tetrabasal is provided with the second common electrical on the face of described 3rd substrate
Pole；It is provided with the first polaroid, described tetrabasal on the face of the described 3rd the most described tetrabasal of substrate
It is provided with the second polaroid on the face of the most described 3rd substrate.
Holographic display system the most according to claim 5, it is characterised in that described second space light is adjusted
Device processed also includes the second driver, described data processor, described second public electrode and each described second
Pixel electrode is connected with described second driver respectively, and described second driver is for shaking according to carrying
The described second sub-holographic encoding data of width information, control described second public electrode and each described second picture
The size of the electric field formed between element electrode.
Holographic display system the most according to claim 1 and 2, it is characterised in that described first son is complete
Coded data carries amplitude information to breath, described second sub-holographic encoding data carry phase information, described
First spatial light modulator includes the 5th substrate and the 6th substrate being oppositely arranged, and described 5th substrate is arranged on
The incident side of described first spatial light modulator, is provided with between described 5th substrate and described 6th substrate
Three liquid crystal layers, the face of described 5th the most described 6th substrate of substrate is provided with the 3rd polaroid, and described
Five substrates are provided with multiple 3rd pixel electrode, described 3rd pixel electrode on the face of described 6th substrate
With described first pixel one_to_one corresponding, described 6th substrate is provided with the 3rd on the face of described 5th substrate
Public electrode.
Holographic display system the most according to claim 7, it is characterised in that described first spatial light is adjusted
Device processed also includes the 3rd driver, described data processor, described 3rd public electrode and each the described 3rd
Pixel electrode is connected with described 3rd driver respectively, and described 3rd driver is for shaking according to carrying
The described first sub-holographic encoding data of width information, control described 3rd public electrode and each described 3rd picture
The size of the electric field formed between element electrode.
Holographic display system the most according to claim 7, it is characterised in that described second space light is adjusted
Device processed includes the 7th substrate and the 8th substrate being oppositely arranged, and described 7th substrate is arranged on described second space
The incident side of photomodulator, is provided with the 4th liquid crystal layer between described 7th substrate and described 8th substrate, institute
Stating and be provided with the 4th polaroid on the face of the 7th the most described 8th substrate of substrate, described 7th substrate is towards institute
State and on the face of the 8th substrate, be provided with multiple 4th pixel electrode, described 4th pixel electrode and described second picture
Element one_to_one corresponding, described 8th substrate is provided with the 4th public electrode on the face of described 7th substrate.
Holographic display system the most according to claim 9, it is characterised in that described second space light
Manipulator also includes fourth drive, described data processor, described 4th public electrode and each described
Four pixel electrodes are connected with described fourth drive respectively, and described fourth drive is for according to carrying
The described second sub-holographic encoding data of phase information, control described 4th public electrode with each the described 4th
The size of the electric field formed between pixel electrode.
11. holographic display system according to claim 1 and 2, it is characterised in that described backlight bag
The beam expanding lens of the light emission side including laser instrument and be arranged on described laser instrument.
12. holographic display system according to claim 11, it is characterised in that described laser instrument is in institute
The color of the laser beam sent in stating a frame time of display device is constant.
13. holographic display system according to claim 11, it is characterised in that described display device
One frame time includes three time periods, within the time period each described, the laser beam that described laser instrument is sent
Color be red, green and one in blueness, and within the time period described in any two, described laser
The color of the laser beam that device is sent is different.
14. holographic display system according to claim 1 and 2, it is characterised in that described peep-proof eye
Mirror also include position sensor, described position sensor be used for detecting described second space photomodulator relative to
The locus coordinate of described first spatial light modulator；
Described display device also includes signal receiver, computer, controller and battery of lens, described signal
Receptor, described computer, described controller and described battery of lens are sequentially connected with, and described signal receiver is also
Being connected with described position sensor, described battery of lens is arranged at the going out on light path of described backlight；Described calculating
Device calculates for the described locus coordinate received according to described signal receiver, and exports calculating
Result；Described controller is for controlling described battery of lens according to described result of calculation, so that described first pixel
The laser beam sent is incident in described second pixel.
15. holographic display system according to claim 14, it is characterised in that described computer also with
Described data processor connects, and described data processor is additionally operable to according to described result of calculation, to described second
Sub-holographic encoding data carry out phase compensation.
16. holographic display system according to claim 1 and 2, it is characterised in that at described data
Reason device includes holographic data maker and data synchronizing unit, wherein,
Described holographic data maker is for described entirely according to described hologram three-dimensional image information generation to be shown
Breath coded data, and described holographic encoding data are divided into described first sub-holographic encoding data and described second
Sub-holographic encoding data；
Described holographic data maker, described first spatial light modulator and described second space photomodulator divide
Be not connected with described data synchronizing unit, described data synchronizing unit for described first sub-holographic encoding data and
Described second sub-holographic encoding data carry out synchronization process.
17. 1 kinds of holographic display packings, it is characterised in that described holographic display packing for holography display is
System, described holographic display system includes display device and peep-proof glasses, and described display device includes multiple first
Sub-pixel, described peep-proof glasses include multiple second sub-pixel；Described holographic display packing includes:
Holographic encoding data are generated according to hologram three-dimensional image information to be shown, and by described holographic encoding number
According to the sub-holographic encoding data of be divided into synchronization first sub-holographic encoding data and second；
Laser beam is provided, according to described first sub-holographic encoding data to being incident to the first pixel each described
The laser beam of each described first pixel is modulated；
According to described second sub-holographic encoding data to through the first pixel each described be incident to each described second
The laser beam of pixel is modulated, to form hologram three-dimensional image information.
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