CN109831661A - A kind of programmable composite stereo display system in space - Google Patents
A kind of programmable composite stereo display system in space Download PDFInfo
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- CN109831661A CN109831661A CN201910025900.4A CN201910025900A CN109831661A CN 109831661 A CN109831661 A CN 109831661A CN 201910025900 A CN201910025900 A CN 201910025900A CN 109831661 A CN109831661 A CN 109831661A
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Abstract
The invention discloses a kind of programmable composite stereo display system in space, it is related to the critical optical device designing technique for stereoscopic display, which includes luminescent layer 1, modulating layer 2 and display layer 3.The modulating layer 2 is between luminescent layer 1 and display layer 3.Modulating layer 2 can be the phase-modulation layer of space programming, or be scattering medium layer.There are two types of modes for the structure；Mode one is required when modulating layer 2 is scattering medium layer, luminescent layer 1 is programmable light emitting cell array, mode two require when modulating layer 2 be can space programming ECB liquid crystal layer when, display content is to rebuild the corresponding editor's phase diagram of light field different depth position, and luminescent layer 1 can be any light source；The three-dimensional display system structure is simple, cannot be only used for production and dresses in the three-dimensional display system that declines, is also applied for oversize bore hole stereoscopic display.
Description
Technical field
The invention discloses a kind of programmable composite stereo display systems in space, are related to the skill of three-dimensional display system design
Art field.
Background technique
Current nearly mesh displaying scheme be mostly by some optical elements, such as free form surface, optical lens, it is semi-transparent semi-reflecting
Mirror, optical waveguide etc. project the image source content for the display system being placed in the non-distance of distinct vision in pupil.But current scheme
In there are still many challenges, such as equipment volume miniaturization, lightweight, system low-power consumption, image high-resolution, rendering are real-time
The problems such as property and most important visual comfort.Wherein in order to ensure that user can be with prolonged use equipment, one good
Viewing experience be it is essential, Unfortunately there is presently no any scheme can effectively while solve with
Above so problem.But for adjusting most important in visual comfort and convergence angle collision problem, have at present many effective
Scheme can be by providing accurate or alleviating close to accurate Depth cue, such as display side based on Maxwell's view
Case；Based on multilevel displaying scheme；Based on holographic light field displaying scheme；Light field displaying scheme based on dual-layered liquid crystal；With
And light field displaying scheme based on integration imaging principle etc..
Wherein the light field displaying scheme based on integration imaging principle is considered as best 3D reconstruction model.Its cardinal principle is base
The regulation to light is realized in microlens array or array of orifices.But due to the limitation of displaying principle, there is resolution ratio
The problems such as loss is serious, and Morie fringe is obvious, and three-dimensional crosstalk degree is high, the image quality for resulting in the program is bad, seriously affects
The popularization and application of stereo display technique.
Summary of the invention
Technical problem: to solve the above-mentioned problems.The invention discloses a kind of space programmable composite stereo display systems
System.Mode one in such a way that modulating layer shows that phase information and display layer show strength information, by the phase of original light field and
Amplitude is displayed separately, and can effectively establish accurate Depth cue, realizes the purpose that accurate three-dimensional is rebuild, and is novel display side
Formula.Mode two is in such a way that scattering medium records and rebuilds, by recording simultaneously to the highdensity light field wavefront of original light field
It has been shown that, scattering medium layer can effectively reduce system Morie fringe, and be novel display mode.
Technical solution: the present invention is a kind of programmable composite stereo display system in space, is related to for stereoscopic display
Critical optical device technology, the system include luminescent layer, modulating layer and display layer；The modulating layer is located at luminescent layer and display
Layer between, modulating layer be can space programming phase-modulation layer or be scattering medium layer.
The modulating layer be can space programming phase-modulation layer can space programming ECB liquid crystal layer when, display
Content is the corresponding phase information figure of different depth position of original light field, and luminescent layer is any light source, the display layer institute
Display content is corresponding distribution of light intensity information.
When the modulating layer is scattering medium layer, luminescent layer is programmable light emitting cell array,
The luminescent layer is programmable light emitting cell array or uniform backlight.
The programmable light emitting cell array is micro- LED array, liquid crystal display systems or OLED display system；It can compile
The luminescence unit of journey array of light emitting cells any position can be driven separately.
The scattering medium layer is frosted glass, automatically controlled polymer dispersed liquid crystals or holographic film.
It is described can space programming phase-modulation layer, be transmission-type programming device；The light that luminescent layer is emitted can
To pass through the transmission-type programming device, it is irradiated on display layer.
When the modulating layer is scattering medium layer, luminescent layer is programmable light emitting cell array, the programmable hair of luminescent layer
Light unit shows primary light field wavefront information, the three-dimensional image source after the display layer display rendering, rendering stream as required
Journey is as follows:
A) a scattering medium layer, the original of three-dimensional scenic information collection: are placed between camera and three-dimensional scenic to be recorded
Beginning field information passes through the wavefront after scattering medium layer, is got off by cameras record, which is known as primary light field wavefront information,
The information of each photo cell record is known as unit light field wavefront information in camera；
B) display input: since the luminescence unit of programmable light emitting cell array any position can be driven separately, because
This makes each luminescence unit show corresponding unit light field wavefront information, which believes before can reconstructing primary light field wave
Breath will reconstruct the phase information of original light field after the wavefront information passes through same scattering medium layer；
C) display exports: the strength information for the original light field that display layer is shown, by display layer before primary light field wave
When liquid crystal cells, strength information shown on the liquid crystal cells, the amplitude information of referred to as original light field can be taken；With phase
The wavefront of position information and amplitude information can be rebuild in face of original light field in front of the display.
8, the programmable composite stereo display system in a kind of space according to claim 2, it is characterised in that: described
Modulating layer be can space programming ECB liquid crystal layer when, display content be original light field the corresponding editor of different depth position
Phase information figure, luminescent layer can be any light source, such as programmable light emitting cell array or uniform backlight；The display layer
Three-dimensional image source after display rendering, rendering process are as follows:
A) all luminescence units are all lighted in luminescent layer；Can space programming ECB liquid crystal layer display rebuild light field not
Corresponding editor's phase information figure with depth location can take this when the wavefront of luminescent layer passes through the display unit of ECB liquid crystal layer
The continuation of shown phase information is propagated forward on unit, referred to as Wave-front phase；
B) intensity map for the reconstruction light field that display layer is shown can take this when wavefront passes through the liquid crystal cells in display layer
Shown strength information, referred to as wavefront amplitude on liquid crystal cells；
C) wavefront of the with phase information and amplitude information can be rebuild in face of original light field in front of the display.
The utility model has the advantages that the present invention has the advantage that
1. mode one is in such a way that modulating layer shows that phase information and display layer show strength information, by original light field
Phase and amplitude are displayed separately, and can effectively establish accurate Depth cue, realize the purpose that accurate three-dimensional is rebuild, and are novel aobvious
Show mode.
2. mode two is in such a way that scattering medium records and rebuilds, by the highdensity light field wavefront of original light field
It records and shows, scattering medium layer can effectively reduce system Morie fringe, and be novel display mode.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needing in embodiment using original
Attached drawing is briefly described.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the collection terminal of mode one of the invention.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description.
As shown in Figure 1, the structure includes luminescent layer 1, modulating layer 2 and display layer 3.The modulating layer 2 is located at luminescent layer 1
Between display layer 3.Luminescent layer 1 can be common uniform backlight, such as laser beam expanding light source or LED point light source can also
Think programmable array of light emitting cells, such as micro- LED array, liquid crystal display systems or OLED display system.Modulating layer 2 can be
Programmable ECB liquid crystal layer, or non-programmable scattering medium layer, such as frosted glass, automatically controlled polymer dispersed liquid crystals or
Person's holographic film etc..Display layer 3 is mainly used to show distribution of light intensity information.The display system includes both of which:
With the display system of programmable light emitting cell array composition when mode one is scattering medium layer, requirement can under the mode
Programming luminescence unit carries out coupling display with display layer.Scattering medium layer primarily serves wave during recording field information
The effect of preceding scattering.During camera photographs to record three-dimension object by scattering medium, due to micro- in scattering medium
Little particle or coarse surface so that the direction of propagation of wavefront is no longer along fixed-direction propagation, but scatter.Scattering
Wavefront afterwards is different from the wavefront of original single direction after three-dimension object, and the wavefront for just having multiple directions is irradiated to three
It ties up on object.Therefore camera is actually to carry out multi-angle to the process that three-dimension object is taken pictures by scattering medium layer
Light field recording process.The wavefront information recorded in this way will include the depth information of three-dimension object.
Due to reversibility of optical path, the wavefront information recorded is shown, and is passed through identical scattering medium,
Mixed and disorderly wavefront will become the wavefront information of rule again.It is superimposed with the amplitude information of display layer again, it can obtain high-precision
Rebuild light field.
Mode two is can the ECB liquid crystal layer of space programming and the display system of any light source composition.All hairs in luminescent layer 1
Light unit is all lighted；Can space programming ECB liquid crystal layer display rebuild light field the corresponding editor's phase of different depth position
Hum pattern.When the wavefront of luminescent layer passes through the display unit of ECB liquid crystal layer, can take on the unit shown phase information after
Continue and propagate forward, referred to as Wave-front phase.The intensity map for the reconstruction light field that display layer 3 is shown, wavefront is by the liquid in display layer
When brilliant unit, strength information shown on the liquid crystal cells, referred to as wavefront amplitude can be taken.With phase information and amplitude
The wavefront of information can be rebuild in face of original light field in front of the display.
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description.
Embodiment 1
A kind of programmable composite stereo display system (mode one) in space
Mode one is the programmable composite stereo display system in space based on programmable light emitting layer and scattering medium layer,
Working principle is as follows:
The collection process of three-dimensional scene information as shown in Figure 2 places one between camera and three-dimensional scenic to be recorded
Scattering medium layer, eyepiece is for light convergence.The original field information of three-dimensional scenic passes through the wavefront after scattering medium layer, quilt
Cameras record is got off, which is known as primary light field wavefront information, and the information of each photo cell record is known as unit in camera
Light field wavefront information；Since the luminescence unit of programmable light emitting cell array any position can be driven separately, make every
A luminescence unit shows corresponding unit light field wavefront information.So the luminescent layer can reconstruct primary light field wavefront information.
After the wavefront information passes through same scattering medium layer, the phase information of original light field will be reconstructed；What display layer 3 was shown
The strength information of original light field can take institute on the liquid crystal cells when before primary light field wave by the liquid crystal cells in display layer
The strength information of display, the amplitude information of referred to as original light field.Wavefront with phase information and amplitude information can shown
Original light field is rebuild before device.
Embodiment 2
A kind of programmable composite stereo display system (mode two) in space
Mode two be based on can the ECB liquid crystal layer of space programming and the composite stereo display system of luminescent layer, work is former
It manages as follows:
All luminescence units are all lighted in luminescent layer 1；Can space programming ECB liquid crystal layer display rebuild light field difference
The corresponding editor's phase information figure of depth location.When the wavefront of luminescent layer passes through the display unit of ECB liquid crystal layer, the list can be taken
The continuation of shown phase information is propagated forward in member, referred to as Wave-front phase.The intensity for the reconstruction light field that display layer 3 is shown
Figure when wavefront passes through the liquid crystal cells in display layer, can take strength information shown on the liquid crystal cells, referred to as wavefront
Amplitude.Wavefront with phase information and amplitude information can be rebuild in face of original light field in front of the display.
Claims (9)
1. a kind of programmable composite stereo display system in space, which is characterized in that the system includes luminescent layer (1), modulating layer
(2) and display layer (3)；The modulating layer (2) is located between luminescent layer (1) and display layer (3), and modulating layer (2) is can space
The phase-modulation layer of programming is scattering medium layer.
2. the programmable composite stereo display system in space according to claim 1, which is characterized in that the modulating layer
(2) for can space programming phase-modulation layer can space programming ECB liquid crystal layer when, display content be original light field not
The corresponding phase information figure with depth location, luminescent layer (1) are any light source, and the display layer (3) displayed content is institute
Corresponding distribution of light intensity information.
3. the programmable composite stereo display system in space according to claim 1, which is characterized in that the modulating layer
(2) be scattering medium layer when, luminescent layer (1) be programmable light emitting cell array.
4. the programmable composite stereo display system in space according to claim 2, which is characterized in that the luminescent layer
It (1) is programmable light emitting cell array or uniform backlight.
5. the programmable composite stereo display system in space according to claim 4, which is characterized in that described is programmable
Array of light emitting cells is micro- LED array, liquid crystal display systems or OLED display system；Any position of programmable light emitting cell array
The luminescence unit set can be driven separately.
6. the programmable composite stereo display system in space according to claim 1, which is characterized in that the scattering is situated between
Matter layer is frosted glass, automatically controlled polymer dispersed liquid crystals or holographic film.
7. the programmable composite stereo display system in space according to claim 1, which is characterized in that described can space
The phase-modulation layer of programming is transmission-type programming device；It is programmable that the light that luminescent layer is emitted can pass through the transmission-type
Device is irradiated on display layer (3).
8. the programmable composite stereo display system in space according to claim 3, it is characterised in that: the modulating layer
(2) when being scattering medium layer, luminescent layer (1) is programmable light emitting cell array, the programmable light emitting unit of luminescent layer (1) according to
Need to show primary light field wavefront information, it is as follows to render process for the three-dimensional image source after the display layer (3) display rendering:
A) a scattering medium layer, the primary light of three-dimensional scenic information collection: are placed between camera and three-dimensional scenic to be recorded
Field information is got off, which is known as primary light field wavefront information, camera by the wavefront after scattering medium layer by cameras record
In the information of each photo cell record be known as unit light field wavefront information；
B) display input: since the luminescence unit of programmable light emitting cell array any position can be driven separately, make
Each luminescence unit shows corresponding unit light field wavefront information, which can reconstruct primary light field wavefront information, should
After wavefront information passes through same scattering medium layer, the phase information of original light field will be reconstructed；
C) display exports: the strength information of the original light field of display layer (3) display, by display layer before primary light field wave
When liquid crystal cells, strength information shown on the liquid crystal cells, the amplitude information of referred to as original light field can be taken；With phase
The wavefront of position information and amplitude information can be rebuild in face of original light field in front of the display.
9. the programmable composite stereo display system in a kind of space according to claim 2, it is characterised in that: the modulation
Layer (2) be can space programming ECB liquid crystal layer when, display content be original light field the corresponding editor's phase of different depth position
Position hum pattern, luminescent layer (1) can be any light source, such as programmable light emitting cell array or uniform backlight；The display
Three-dimensional image source after layer (3) display rendering, rendering process are as follows:
A) all luminescence units are all lighted in luminescent layer (1)；Can space programming ECB liquid crystal layer display rebuild light field not
Corresponding editor's phase information figure with depth location can take this when the wavefront of luminescent layer passes through the display unit of ECB liquid crystal layer
The continuation of shown phase information is propagated forward on unit, referred to as Wave-front phase；
B) intensity map of the reconstruction light field of display layer (3) display can take this when wavefront passes through the liquid crystal cells in display layer
Shown strength information, referred to as wavefront amplitude on liquid crystal cells；
C) wavefront of the with phase information and amplitude information can be rebuild in face of original light field in front of the display.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671721A (en) * | 2020-05-15 | 2021-11-19 | 华为技术有限公司 | Display device, system and method |
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Application publication date: 20190531 |