CN106773588B - A kind of holographic display and its control method - Google Patents

A kind of holographic display and its control method Download PDF

Info

Publication number
CN106773588B
CN106773588B CN201710003290.9A CN201710003290A CN106773588B CN 106773588 B CN106773588 B CN 106773588B CN 201710003290 A CN201710003290 A CN 201710003290A CN 106773588 B CN106773588 B CN 106773588B
Authority
CN
China
Prior art keywords
light
observation position
lightguide
light modulation
modulation element
Prior art date
Application number
CN201710003290.9A
Other languages
Chinese (zh)
Other versions
CN106773588A (en
Inventor
张玉欣
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN201710003290.9A priority Critical patent/CN106773588B/en
Publication of CN106773588A publication Critical patent/CN106773588A/en
Application granted granted Critical
Publication of CN106773588B publication Critical patent/CN106773588B/en

Links

Abstract

The embodiment of the present invention provides a kind of holographic display and its control method, is related to field of display technology, is capable of increasing the limited problem of holographic display viewing range.The holographic display includes backlight module, multiple Light modulation elements, locator, data driver and direction controller.Locator is for acquiring observation position.Direction controller is used to control the direction of propagation of backlight module output light according to the collection result of locator.Light modulation element is set to backlight module light emission side, and it is connected with data driver, backlight module is incident at least one Light modulation element corresponding with observation position along the light that the direction of propagation exports, the Light modulation element write-in signal that driver exports for receiving data, and said write signal is modulated incident ray, to show hologram image to observation position.The holographic display is for showing hologram image.

Description

A kind of holographic display and its control method

Technical field

The present invention relates to field of display technology more particularly to a kind of holographic display and its control methods.

Background technique

As 3D (Dimension, dimension) display technology becomes increasingly popular and uses, holography progresses into people Life and work in.Reconstruction of hologram technology is different from parallax stereo display technique, it is big with the depth of field, will not generate it is dizzy It is dizzy to wait many advantages.

Usually holographic display includes the record and hologram image reproducing processes of hologram image, on this basis, for reality Existing dynamic holographic display, can be by the holographic recording process for calculating execution hologram image, and obtains hologram image coded data. Next, above-mentioned coded data to be input to the reproduction for carrying out hologram image in holographic display 01 as shown in Figure 1a.So And above-mentioned dynamic holographic reproducing technology development also by the restriction of hardware condition, the technology need data processing system rapidly into The a large amount of operation of row.

The traditional reconstruction of hologram is as shown in Figure 1a, although biggish viewing area F can be formed, at this In big viewing area F, other than the region where two forms 11 for entering pupil, remaining region cannot be observed It arrives, to cause information waste.It is contributive to two 11 regions of form complete using only calculating in the prior art based on this Figure information is ceased, and by the scheme of eyeball tracking technology tracking eyeball position, as shown in Figure 1 b, so that the hologram image reproduced is complete Portion or most of region being incident to where two forms 11, so that viewer enjoys real holographic three-D image.Such one Come, reduces the data volume of operation.However, although above scheme reduces calculation amount, but will cause user again simultaneously can only be Hologram image is watched in two 11 regions of form, so that viewer's moving range is limited.

Summary of the invention

The embodiment of the present invention provides a kind of holographic display and its control method, is capable of increasing holographic display viewing model Enclose limited problem.

In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that

The one side of the embodiment of the present invention, provides a kind of holographic display, including backlight module, arranges in matrix form Multiple Light modulation elements, locator, data driver and direction controller;The locator and the direction controller It is connected, the locator is for acquiring observation position;The direction controller is also connected with the backlight module, the direction control Device processed is used to control the direction of propagation of the backlight module output light according to the collection result of the locator;The light modulation Component is set to the backlight module light emission side, and is connected with the data driver;The backlight module is along the propagation The light of direction output is incident at least one described Light modulation element corresponding with the observation position, the Light modulation element For receiving the write-in signal of the data driver output, and incident ray is modulated according to said write signal, with Hologram image is shown to the observation position.

Preferably, the Light modulation element includes spatial light modulator and positioned at the spatial light modulator light emission side Lens;The spatial light modulator is used under the control of write-in signal, is modulated and is gone out using incident ray as reading light Penetrate output light;The lens are used to the output light converging to the observation position.

Preferably, the backlight module includes light source, the first lightguide and the second lightguide;First lightguide is set It is placed in the light emission side of the light source, the light source and first lightguide are located at two non-light of the Light modulation element Line transmission equipment side, and the light source and first lightguide be all set in second lightguide and the Light modulation element it Between, so that the light that the light source issues is parallel with the light transmission equipment side of the Light modulation element, and it is incident to described first Lightguide;First lightguide is connected with the direction controller, and first lightguide is used in the direction controlling Under the control of device, the emergent light of the light source is directed into second lightguide;Second lightguide and the direction are controlled Device processed is connected, and second lightguide is used under the control of the direction controller, by the outgoing of first lightguide Light is directed into the Light modulation element along the direction of propagation.

It is further preferred that first lightguide includes the first reflecting mirror.

It is further preferred that second lightguide includes second reflecting mirror;Or second lightguide includes Multiple second reflecting mirrors, each second reflecting mirror are corresponding with the position of a Light modulation element.

It is further preferred that second reflecting mirror is concave mirror.

It is further preferred that the spatial light modulator is LCD space light modulator.

It is further preferred that the light source includes laser emitter and the expansion for being set to the laser emitter light emission side Beam collimation lens;Alternatively, the light source includes LED light source.

The another aspect of the embodiment of the present invention provides a kind of side for controlling any one holographic display as described above Method, which comprises locator acquires observation position;Direction controller is according to the control of the collection result of the locator The direction of propagation of backlight module output light;Data driver output write-in signal;The backlight module is along the direction of propagation At least one Light modulation element output light corresponding with the observation position;The Light modulation element is believed according to said write Number incident ray is modulated, to show hologram image to the observation position.

Preferably, when the locator collects multiple observation positions, institute after the locator acquisition observation position The method of stating includes: the propagation that the direction controller successively controls the backlight module output light according to different observation positions Direction;The backlight module is along the different directions of propagation successively at least one light modulation corresponding with each observation position Component output light;Data driver is successively write at least one Light modulation element corresponding with each observation position output Enter signal;At least one Light modulation element corresponding with each observation position is successively according to said write signal to incident light Line is modulated, successively to show hologram image to the multiple observation position.

It includes backlight mould that the embodiment of the present invention, which provides a kind of holographic display and its control method, the holographic display, Group, multiple multiple Light modulation elements, locator, data driver and direction controllers arranged in a matrix.Wherein, Locator is connected with direction controller, and the locator is for acquiring observation position.Direction controller is also connected with backlight module, should Direction controller is used to control the direction of propagation of backlight module output light according to the collection result of locator.It is above-mentioned based on this Light modulation element is set to backlight module light emission side, and is connected with data driver.The backlight module is exported along the direction of propagation Light be incident at least one Light modulation element corresponding with above-mentioned collected observation position, which is used for The write-in signal of data driver output is received, and incident ray is modulated according to write-in signal, with aobvious to observation position Show hologram image.

In the case, when backlight module is along the direction of propagation output light that direction controller is set, the light meeting It is incident at least one Light modulation element corresponding with the collected observation position of locator.At this point, the Light modulation element Incident light can be modulated according to the write-in signal that data driver provides, to show hologram to above-mentioned observation position Picture.So, after the observation position that user watches holographic display changes, backlight can change by direction controller The direction of propagation of mould group output light, the light that backlight module is issued expose to opposite with the observation position after changing On the Light modulation element answered, so that hologram image is shown to the observation position after variation by the Light modulation element, so that Holography display is no longer influenced by the limitation of viewing window position in the prior art, improves the angular field of view of holographic display.

In addition, locator can pass the data information of different observation positions when being observed with multiple users Direction controller is transported to, so that direction controller successively controls the propagation of backlight module output light according to different observation positions Direction.In the case, data driver can be successively defeated at least one Light modulation element corresponding with each observation position Signal is written out, so that at least one Light modulation element corresponding with each observation position can be successively according to above-mentioned Write-in signal is modulated incident ray, successively to show hologram image to multiple observation positions.Based on this, although being located at not The time irreversibility of hologram image is received with the user of observation position, but since the brain of human body has view to the image seen Feel persists function, therefore user does not feel as the difference of above-mentioned signal transmission, to achieve the effect that the synchronous viewing of more people.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 a is a kind of holographic display schematic diagram for holographic display that the prior art provides;

Fig. 1 b is the holographic display schematic diagram for another holographic display that the prior art provides;

Fig. 2 is a kind of structural schematic diagram of holographic display provided in an embodiment of the present invention;

Fig. 3 is the arrangement schematic diagram of Light modulation element in Fig. 2;

Fig. 4 is the structural schematic diagram with a kind of holographic display of Light modulation element specific structure in Fig. 2 or Fig. 3;

Fig. 5 is the structural schematic diagram with the holographic display of a kind of specific structure of backlight module in Fig. 2;

Fig. 6 is the structural schematic diagram with the holographic display of another specific structure of backlight module in Fig. 2;

Fig. 7 is the structural schematic diagram with the holographic display of another specific structure of backlight module in Fig. 2;

Fig. 8 is a kind of control method flow chart of holographic display provided in an embodiment of the present invention;

Fig. 9 is the control method flow chart of another holographic display provided in an embodiment of the present invention.

Appended drawing reference:

01- holographic display;10- hologram image;11- form;20- backlight module;201- light source;211- Laser emission Device;212- beam-expanding collimation lens;The first lightguide of 202-;The second lightguide of 203-;The second reflecting mirror of 213-;30- light modulation group Part;301- spatial light modulator;302- lens;The observation area 31-;40- data driver;50- locator;60- direction controlling Device.

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 provides a kind of holographic display 01, as shown in Fig. 2, including backlight module 20, being in rectangular Multiple Light modulation elements 30 (as shown in Figure 3), locator 50, data driver 40 and the direction controller 60 of formula arrangement.

Specifically, locator 50 is connected with direction controller 60, the locator 50 for acquire observation position (for example, Observation position A).

In addition, direction controller 60 is also connected with backlight module 20, direction controller 60 is used for according to above-mentioned locator 50 Collection result control 50 output light of backlight module the direction of propagation (solid line propagate) in Fig. 2 so that backlight module Along the light of direction of propagation output be incident to locator 50 to collect observation position (such as observation position A) corresponding On at least one Light modulation element 30.

It should be noted that a Light modulation element 30 can be corresponding with a detection position in the present invention.Alternatively, one A observation area 31 as shown in Figure 3 is corresponding with a detection position, is provided at least two light in each observation area 31 Modulation component 30.

Based on this, above-mentioned Light modulation element 30 is set to the light emission side of the backlight module 20, and the Light modulation element 30 is also It is connected with data driver 40.In the case, defeated along the direction of propagation that direction controller 60 determines when backlight module 20 Out when light, which can be incident to a light modulation corresponding with collected observation position (such as observation position A) On component 30.Or it is incident to every in an observation area 31 corresponding with collected observation position (such as observation position A) On one modulation component 30.

At this point, Light modulation element 30 can receive the write-in signal of the output of data driver 40, and according to the write-in signal Incident ray is modulated, to show hologram image 10 to above-mentioned observation position (such as observation position A).

So, it after the observation position that user watches holographic display changes, such as is changed to by observation position A After observation position B, the direction of propagation (void in Fig. 2 of 20 output light of backlight module can change by direction controller 60 Line is propagated), the light that backlight module 20 is issued expose to and change after observation position, i.e. observation position B is opposite On the Light modulation element 30 answered, so that i.e. observation position B is shown entirely by the Light modulation element 30 to the observation position after variation Image 10 is ceased, so that holographic display is no longer influenced by the limitation of viewing window position in the prior art, improves the view of holographic display Angular region.

In addition, locator 50 can be by different observation positions (for example, acquisition when being observed with multiple users To the data information transfer of observation position A and observation position B) to direction controller 60, so that direction controller 60 is according to difference Observation position successively control the direction of propagation of 20 output light of backlight module.Such as backlight module 20 is first along shown in solid Direction is propagated, and then the direction shown in the dotted line is propagated again.In the case, data driver 40 can successively to At least one Light modulation element 30 output write-in letter corresponding with each observation position (for example, observation position A and observation position B) Number, so that at least one Light modulation element corresponding with each observation position (for example, observation position A and observation position B) 30 can successively be modulated incident ray according to above-mentioned write-in signal, successively to show hologram image to multiple observation positions 10, such as first hologram image 10 is shown to observation position A, then hologram image 10 is shown to observation position B again.Based on this, though So the time irreversibility of hologram image 10 is received positioned at the user of different observation positions, but since the brain of human body is to seeing Image has the function of the persistence of vision, therefore user does not feel as the difference of above-mentioned signal transmission, to reach, more people are synchronous to be seen The effect seen.

The structure of above-mentioned Light modulation element 30 is described in detail below.

Specifically, as shown in figure 4, above-mentioned Light modulation element 30 is including spatial light modulator 301 and is located at spatial light tune The lens 302 of 301 light emission side of device processed.

Wherein, which is used under the control of above-mentioned write-in signal, using incident ray as reading light It is modulated and is emitted output light.

It should be noted that the device that the spatial distribution that above-mentioned spatial light modulator 301 is a kind of pair of light wave is modulated. Specifically, being provided with multiple independent junior units in the spatial light modulator 301, spatial light modulator 301 can be referred to as Pixel.Above-mentioned write-in signal includes passing through addressing (addressing) containing the information for controlling above-mentioned pixel, and by above- mentioned information Respective pixel location is transmitted to up, so as under the control of above-mentioned write-in signal, to some parameters of light wave, such as phase The one-dimensional or Two dimensional Distribution of position, amplitude or intensity, frequency, polarization state etc. carries out the transformation or modulation of room and time, will write The information for entering signal institute load writes into the device read among light by above-mentioned address procedures.Above-mentioned write-in signal may be optics Signal or electrical signal.

It should be noted that in the case where Light modulation element 30 includes spatial light modulator 301, when a light modulation group When part 30 can be corresponding with a detection position, single Light modulation element 30 can show that one is complete after receiving write-in signal Image so that be located at observation position corresponding with the Light modulation element 30 user see above-mentioned complete image.

Alternatively, in the case where Light modulation element 30 includes spatial light modulator 301, when an observation as shown in Figure 3 Region 31 is corresponding with a detection position, same when being provided at least two Light modulation elements 30 in each observation area 31 The write-in signal that each Light modulation element 30 of observation area 31 is respectively received has frequency dividing characteristic, so that above-mentioned each The image that a Light modulation element 30 is shown is frequency dividing image, so that by each frequency dividing image mosaic in the observation area 31 Become a complete image afterwards, and can see positioned at the user of observation position corresponding with the observation area 31 above-mentioned complete Image.

It is further preferred that above-mentioned spatial light modulator 301 can be LCD space light modulator.Specifically, can incite somebody to action Liquid crystal layer is as light modulating materials, and each region applies different electric fields on liquid crystal layer, with cause Liquid Crystal Molecules Alignment direction and The variation of position, so as to cause the variation of its optical property.

In addition, said lens 302 are used to converge to output light observation position (for example, detection position A).In order to increase light The convergence effect of line, it is preferred that said lens 302 can be convex lens.

On this basis, above-mentioned backlight module 20 includes the light source 201 for emitting beam.Wherein, the light source 201 is as schemed It include laser emitter 211 and the beam-expanding collimation lens 212 for being set to 211 light emission side of laser emitter shown in 5.Such one Come, the linear light source that laser emitter 211 provides can be converted into the area source of collimation after beam-expanding collimation lens 212.

Alternatively, above-mentioned light source 201 as shown in fig. 6, may include LED (full name in English Light Emitting Diode, in Literary full name: light emitting diode) light source.

Based on this, by taking light source 201 includes laser emitter 211 as an example.When laser emitter 211 issue light perpendicular to When light transmission equipment side (such as incident side or light emission side of the Light modulation element 30) of Light modulation element 30, in order to enable laser The light that transmitter 211 issues exposes to Light modulation element 30, it is also necessary in Light modulation element 30 and laser emitter It is arranged between 211 for changing the optical device of 211 exit direction of laser emitter, such as above-mentioned beam-expanding collimation lens 212.This Sample one, in order to guarantee that laser emitter 211 emits beam inside backlight module 20 with certain communication space, the backlight Mould group 20 will be very big in the size on the direction perpendicular to the light transmission equipment side of Light modulation element 30, to be unfavorable for showing The development trend of device ultrathin.

To solve the above-mentioned problems, it is preferred that above-mentioned backlight module 20 such as Fig. 5 as shown in fig. 6, further includes the first leaded light Device 202 and the second lightguide 203.

Specifically, above-mentioned first lightguide 202 is set to the light emission side of light source 201, and light source 201 and the first lightguide 202 are located at two non-light transmission equipment sides of Light modulation element 30.Wherein, above-mentioned two non-light transmission equipment side is and light modulation The vertical side of the light transmission equipment side (for example, incident side or light emission side of Light modulation element 30) of component 30.I.e. as shown in fig. 7, Light source 201 and the first lightguide 202 are located at the Light modulation element 30 being made of spatial light modulator 301 and lens 302 Upper and lower two sides.

In addition, and light source 201 and the first lightguide 202 be all set between the second lightguide 203 and Light modulation element 30, So that light source 201 issue light and Light modulation element 30 light transmission equipment side (for example, the incident side of Light modulation element 30 or Light emission side) in parallel, and it is incident to the first lightguide 202.

It should be noted that herein, the directional terminologies such as "up" and "down" are relative to the Light modulation element 30 in attached drawing Illustrate the orientation put to define, it should be understood that, these directional terminologies are opposite concepts, they be used for relative to Description and clarification, the variation in the orientation that can be placed according to Light modulation element 30 and correspondingly change.

On this basis, the first lightguide 202 is connected with direction controller 60.First lightguide 202 is used in side To under the control of controller 60, the emergent light of light source 201 is directed into the second lightguide 203.

Specifically, first lightguide 202 may include the first reflecting mirror.The reflecting surface of first reflecting mirror is towards above-mentioned First light source 201.Under the control of direction controller 60, the first reflecting mirror can deflect, so as to adjust reflective surface The shooting angle of light, so that the light of the first reflecting mirror reflection can expose to the second lightguide according to the direction of setting 203。

In addition, the second lightguide 203 is connected with direction controller 60.Second lightguide 203 is used in direction controlling Under the control of device 60, by the emergent light observation bit that controller 60 is acquired according to locator 50 in the direction of the first lightguide 202 The direction of propagation set and determined is directed into Light modulation element 30.

Specifically, above-mentioned second lightguide 203 may include second reflecting mirror 213.Alternatively, second lightguide 203 can be such as Fig. 5 or as shown in Figure 6 including multiple second reflecting mirrors 213.

It should be noted that the present invention to the quantity of the second reflecting mirror 213 without limitation, when the control in direction controller 60 Under system, the emergent light of the first lightguide 202 both can be reflexed to any one light tune by second reflecting mirror 213 as needed When on component 30 processed, which can be made of second reflecting mirror 213.

Alternatively, the size when the holographic display 01 is larger, i.e., when the number of above-mentioned Light modulation element 30 is more, one Second reflecting mirror 213 is not enough to the emergent light of the first lightguide 202 reflexing to any one Light modulation element 30 as needed When upper, which may include multiple second reflecting mirrors 213.So, when observation position is by such as Fig. 5 When observation position A changes into observation position B, emergent light can be exposed to the second different reflecting mirrors by the first lightguide 202 213, so that at least one corresponding Light modulation element 30 of i.e. observation position B can connect with the observation position after variation The light reflected by the second reflecting mirror 213 for executing reflective operation in the second lightguide 203.

On this basis, for the ease of direction controller 60 to each second reflecting mirror 213 in the second lightguide 203 into Row control, preferred each second reflecting mirror 213 are corresponding with the position of a Light modulation element 30.In addition, above-mentioned multiple The rotation center of two-mirror 213 is located on same center line.

Further, in order to increase by the convergence effect of 213 reflection light of the second reflecting mirror, so that the holography that user observes Image 10 is more clear, it is preferred that above-mentioned second reflecting mirror 213 is illustrated in figure 7 concave mirror.

The embodiment of the present invention provides a kind of method for controlling any one holographic display 01 as described above, such as Shown in Fig. 8, which includes:

S101, locator 50 as shown in Figure 2 acquire observation position (for example, observation position A).

S102, direction controller 60 control the propagation side of 20 output light of backlight module according to the collection result of locator 50 To (solid line in Fig. 2 is propagated).

S103, the output write-in signal of data driver 40.

S104, backlight module 20 are corresponding with observation position A extremely along the above-mentioned direction of propagation (solid line in Fig. 2 is propagated) Few 30 output light of Light modulation element.

S105, the Light modulation element 30 are modulated incident ray according to above-mentioned write-in signal, with aobvious to observation position A Show hologram image 10.

So, it after the observation position that user watches holographic display changes, such as is changed to by observation position A After observation position B, the direction of propagation (void in Fig. 2 of 20 output light of backlight module can change by direction controller 60 Line is propagated), the light that backlight module 20 is issued expose to and change after observation position, i.e. observation position B is opposite On the Light modulation element 30 answered, so that i.e. observation position B is shown entirely by the Light modulation element 30 to the observation position after variation Image 10 is ceased, so that holographic display is no longer influenced by the limitation of viewing window position in the prior art, improves the view of holographic display Angular region.

Further, when locator 50 collects multiple observation positions (for example, such as observation position A and observation position B) When, in step s101, locator 50 can be by different observation positions (for example, collecting observation position A and observation position B) Data information transfer to direction controller 60.On this basis, after step S101, above-mentioned control method such as Fig. 9 institute Show, comprising:

S201, direction controller 60 successively control the propagation side of 20 output light of backlight module according to different observation positions To.

For example, backlight module 20 is first propagated along direction shown in solid, then again the direction shown in the dotted line into Row is propagated.

S202, backlight module 20 along the different directions of propagation successively to each observation position (for example, observation position A and Observation position B) corresponding at least one 30 output light of Light modulation element.

S203, data driver 40 are successively to corresponding with each observation position (for example, observation position A and observation position B) At least one Light modulation element output write-in signal.

S204, at least one light modulation group corresponding with each observation position (for example, observation position A and observation position B) Part 30 is successively modulated incident ray according to write-in signal, successively to show hologram image 10 to multiple observation positions.

Such as first hologram image 10 is shown to observation position A, then hologram image 10 is shown to observation position B again.

So, more people may be implemented and watch hologram image 10.It should be noted that, although being located at different observation positions User receive the time irreversibility of hologram image 10, but since the brain of human body has persistence of vision function to the image seen Can, therefore user does not feel as the difference of above-mentioned signal transmission, to achieve the effect that the synchronous viewing of more people.

Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program When being executed, step including the steps of the foregoing method embodiments is executed;And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light The various media that can store program code such as disk.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (8)

1. a kind of holographic display, which is characterized in that including backlight module, multiple light modulation groups arranged in a matrix Part, locator, data driver and direction controller;
The locator is connected with the direction controller, and the locator is for acquiring observation position;The direction controlling Device is also connected with the backlight module, and the direction controller is used to control the backlight mould according to the collection result of the locator The direction of propagation of group output light;
The Light modulation element is set to the backlight module light emission side, and is connected with the data driver;The backlight Mould group is incident at least one described light modulation group corresponding with the observation position along the light that the direction of propagation exports Part, the Light modulation element are used to receive the write-in signal of the data driver output, and according to said write signal to incidence Light is modulated, to show hologram image to the observation position;
The backlight module includes light source, the first lightguide and the second lightguide;
First lightguide is set to the light emission side of the light source, and the light source and first lightguide are located at described The non-light transmission equipment side of two of Light modulation element, and the light source and first lightguide are all set in second lightguide Between the Light modulation element, so that the light transmission equipment side of light and the Light modulation element that the light source issues is flat Row, and it is incident to first lightguide;
First lightguide is connected with the direction controller, and first lightguide is used in the direction controller Under control, the emergent light of the light source is directed into second lightguide;
Second lightguide is connected with the direction controller, and second lightguide is used in the direction controller Under control, the emergent light of first lightguide is directed into the Light modulation element along the direction of propagation.
2. holographic display according to claim 1, which is characterized in that the Light modulation element includes space light modulation Device and lens positioned at the spatial light modulator light emission side;
The spatial light modulator is used under the control of write-in signal, is modulated and is emitted using incident ray as reading light Output light;The lens are used to the output light converging to the observation position.
3. holographic display according to claim 1, which is characterized in that first lightguide includes the first reflection Mirror.
4. holographic display according to claim 1, which is characterized in that second lightguide includes one second anti- Penetrate mirror;
Or second lightguide includes multiple second reflecting mirrors, each second reflecting mirror and a light modulation group The position of part is corresponding.
5. holographic display according to claim 4, which is characterized in that second reflecting mirror is concave mirror.
6. holographic display according to claim 2, which is characterized in that the spatial light modulator is liquid crystal spatial light Modulator.
7. holographic display according to claim 1, which is characterized in that the light source includes laser emitter and sets It is placed in the beam-expanding collimation lens of the laser emitter light emission side;
Alternatively, the light source includes LED light source.
8. a kind of method of control such as described in any item holographic displays of claim 1-7, which is characterized in that the method Include:
Locator acquires observation position;
Direction controller controls the direction of propagation of the backlight module output light according to the collection result of the locator;
Data driver output write-in signal;
The backlight module is along the direction of propagation at least one Light modulation element output light corresponding with the observation position Line;
The Light modulation element is modulated incident ray according to said write signal, holographic to show to the observation position Image;
When the locator collects multiple observation positions, after locator acquisition observation position the described method includes:
The direction controller successively controls the direction of propagation of the backlight module output light according to different observation positions;
The backlight module is along the different directions of propagation successively at least one light modulation corresponding with each observation position Component output light;
Data driver successively exports write-in signal at least one Light modulation element corresponding with each observation position;
At least one Light modulation element corresponding with each observation position is successively according to said write signal to incident ray It is modulated, successively to show hologram image to the multiple observation position.
CN201710003290.9A 2017-01-03 2017-01-03 A kind of holographic display and its control method CN106773588B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710003290.9A CN106773588B (en) 2017-01-03 2017-01-03 A kind of holographic display and its control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710003290.9A CN106773588B (en) 2017-01-03 2017-01-03 A kind of holographic display and its control method

Publications (2)

Publication Number Publication Date
CN106773588A CN106773588A (en) 2017-05-31
CN106773588B true CN106773588B (en) 2019-07-23

Family

ID=58949434

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710003290.9A CN106773588B (en) 2017-01-03 2017-01-03 A kind of holographic display and its control method

Country Status (1)

Country Link
CN (1) CN106773588B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012085045A1 (en) * 2010-12-22 2012-06-28 Seereal Technologies S.A. Combined light modulation device for tracking users
CN104618705A (en) * 2014-11-28 2015-05-13 深圳市亿思达科技集团有限公司 Adaptive holographic display method and device for different distances based on eyeball tracking
CN105739280A (en) * 2014-12-31 2016-07-06 乐金显示有限公司 Hologram Display Apparatus And Method For Controlling The Same
JP2016126122A (en) * 2014-12-26 2016-07-11 国立大学法人東京農工大学 Hologram display device
CN105954992A (en) * 2016-07-22 2016-09-21 京东方科技集团股份有限公司 Display system and display method
CN107966892A (en) * 2016-10-20 2018-04-27 京东方科技集团股份有限公司 A kind of holographic display and its control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024237B4 (en) * 2007-05-21 2009-01-29 Seereal Technologies S.A. Holographic reconstruction system with optical waveguide tracking

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012085045A1 (en) * 2010-12-22 2012-06-28 Seereal Technologies S.A. Combined light modulation device for tracking users
CN104618705A (en) * 2014-11-28 2015-05-13 深圳市亿思达科技集团有限公司 Adaptive holographic display method and device for different distances based on eyeball tracking
JP2016126122A (en) * 2014-12-26 2016-07-11 国立大学法人東京農工大学 Hologram display device
CN105739280A (en) * 2014-12-31 2016-07-06 乐金显示有限公司 Hologram Display Apparatus And Method For Controlling The Same
CN105954992A (en) * 2016-07-22 2016-09-21 京东方科技集团股份有限公司 Display system and display method
CN107966892A (en) * 2016-10-20 2018-04-27 京东方科技集团股份有限公司 A kind of holographic display and its control method

Also Published As

Publication number Publication date
CN106773588A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
Benzie et al. A survey of 3DTV displays: techniques and technologies
EP0451681B1 (en) Optical apparatus
US5852504A (en) Stereoscopic display method of hologram and its forming method and its stereoscopic display apparatus
TWI565971B (en) Near-eye microlens array displays
TWI656357B (en) Display device
DE60124961T2 (en) A flat-panel projection display
US9052414B2 (en) Virtual image device
US6847488B2 (en) Far-field display
CN105705981B (en) It is configured for the grating of fritter Waveguide display
US7490941B2 (en) Three-dimensional hologram display system
TWI516803B (en) Near-eye parallax barrier displays
US9310559B2 (en) Multiple depth plane three-dimensional display using a wave guide reflector array projector
EP1023631B1 (en) A system for the production of a dynamic image for display
US5696552A (en) Stereoscopic display apparatus
EP0582229B1 (en) Image display apparatus
US7738151B2 (en) Holographic projector
EP2156248B1 (en) Holographic reconstruction system with an optical wavetracking
JP6154321B2 (en) 2D / 3D holographic display system
AU2013301200B2 (en) Scanning two-way light field camera and display
DE60131274T2 (en) Reducing the reason for three-dimensional ads
EP0992163B1 (en) Autostereoscopic display
KR100930431B1 (en) System for generating a method for generating a system, the three-dimensional three-dimensional image for displaying a stereoscopic 3D image, and 3D stereoscopic image
KR101942972B1 (en) Spatial light modulator, Apparatus for holography 3-dimensional display and Method for modulating spatial light
KR20140048735A (en) Optically addressed spatial light modulator divided into plurality of segments, and apparatus and method for holography 3-dimensional display
US8854423B2 (en) Multiplanar volumetric three-dimensional display apparatus

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
GR01 Patent grant