CN205992123U - A kind of holographic display - Google Patents
A kind of holographic display Download PDFInfo
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- CN205992123U CN205992123U CN201621044927.6U CN201621044927U CN205992123U CN 205992123 U CN205992123 U CN 205992123U CN 201621044927 U CN201621044927 U CN 201621044927U CN 205992123 U CN205992123 U CN 205992123U
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Abstract
The utility model discloses a kind of holographic display, including：For providing the backlight of coherent reference light, for modulating the light shutter device of the light wave amplitude information of coherent reference light, and for modulating the phase controlling plate of the phase of light wave information of coherent reference light；Wherein, phase controlling plate and light shutter device are arranged at the light emission side of backlight.Due to phase-modulation and Modulation and Amplitude Modulation being provided separately, realize independent control phase of light wave information and light wave amplitude information, carry out the modulation of light wave amplitude information using light shutter device, carry out the modulation of phase of light wave information using phase controlling plate, be conducive to improving the control ability to modulation object, realize high-quality holographic display.And it is possible to adopt phase controlling plate modulated light wave phase information, it is possible to achieve the naked eye three-dimensional of various visual angles shows.
Description
Technical field
This utility model is related to dimension display technologies field, more particularly, to a kind of holographic display.
Background technology
Display is passed the information in the form of vision and gives people, and Gu has the Chinese idiom that it is better to see once than hear a hundred times it is seen that being shown in people
Actual life in have great importance.According to scientist estimate that the mankind obtain 70% to 80% information source in regarding
Feel.
3D is shown in now to have great importance in social life, and holographic display would is that and is hopeful most to realize true 3D
The technology of display, holographic display can provide the full detail of object wave, has fabulous depth with parallax it is provided that the mankind
To all physiology required for 3D information and psychological hint.
The method recording and reappearing object wave using optical interference and diffraction characteristic is referred to as holography (holograPhy).By
In the phase place that have recorded image and amplitude information, the 3D rendering of image therefore can be reappeared.Existing holographic display system adopts
The spatial modulator of light or electrical addressing is modulated it is desirable to spatial modulator has high refreshing to the phase place and amplitude of light simultaneously
Frequency, fast response speed, it is difficult to meet.Therefore it may appear that crosstalk is big, resolution is low, the problems such as easy visual fatigue, unfavorable
In the three-dimensional viewing effect that acquisition is optimal.
Utility model content
In view of this, this utility model embodiment provides a kind of holographic display, in order to solve existing space modulation
The problem of three-dimensional viewing effect difference during holographic display realized by device.
Therefore, this utility model embodiment provides a kind of holographic display, including：For providing coherent reference light
Backlight, for modulating the light shutter device of the light wave amplitude information of described coherent reference light, and is used for modulating described being concerned with
The phase controlling plate of the phase of light wave information of reference light；Wherein, described phase controlling plate and described light shutter device are arranged at institute
State the light emission side of backlight.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, described phase
Position panel is arranged between described backlight and described light shutter device；Or, described phase controlling plate is arranged at described light opening
Close the light emission side of device.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, described phase
Position panel includes multiple separate modulation areas；One described modulation areas and one of described light shutter device picture
Plain region corresponds, or, described modulation areas are corresponded with the multiple pixel regions in described light shutter device.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, adjacent
The phase-modulation angle of two described modulation areas described coherent reference lights of modulation is different.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, each described
The phase-modulation angle that modulation areas modulate described coherent reference light is relatively fixed or according to the amplitude-modulated signal change receiving.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, described phase
Position panel is raster phase panel, photosphere thickness phase controlling plate or liquid crystal phase place panel.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, described light
Switching device is liquid crystal display device, electrochromic device, or photochromic device.
In a kind of possible implementation, in the holographic display that this utility model embodiment provides, the described back of the body
The coherent reference light that light source provides is relevant collimated light.
The beneficial effect of this utility model embodiment includes：
A kind of holographic display that this utility model embodiment provides, including：For providing the backlight of coherent reference light
Source, for modulating the light shutter device of the light wave amplitude information of coherent reference light, and for modulating the light wave of coherent reference light
The phase controlling plate of phase information；Wherein, phase controlling plate and light shutter device are arranged at the light emission side of backlight.Due to by phase
Position modulation and Modulation and Amplitude Modulation are provided separately, and realize independent control phase of light wave information and light wave amplitude information, using light switch
Part carries out the modulation of light wave amplitude information, carries out the modulation of phase of light wave information using phase controlling plate, is conducive to raising to exchange
The control ability of object processed, realizes high-quality holographic display.And it is possible to using phase controlling plate modulated light wave phase place letter
Breath, it is possible to achieve the naked eye three-dimensional of various visual angles shows.
Brief description
One of structural representation of holographic display that Fig. 1 provides for this utility model embodiment；
The two of the structural representation of the holographic display that Fig. 2 provides for this utility model embodiment；
The concrete structure schematic diagram of the holographic display that Fig. 3 provides for this utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the holographic display that this utility model embodiment provides is carried out in detail
Carefully illustrate.
In accompanying drawing, the shapes and sizes of each part do not reflect the actual proportions of holographic display, and purpose is schematically illustrate
This utility model content.
This utility model embodiment provides a kind of holographic display, as depicted in figs. 1 and 2, including：For providing phase
The backlight 100 of dry reference light, for modulating the light shutter device 200 of the light wave amplitude information of coherent reference light, and is used for
The phase controlling plate 300 of the phase of light wave information of modulation coherent reference light；Wherein, phase controlling plate 300 and light shutter device 200
It is arranged at the light emission side of backlight 100.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, due to by phase-modulation and amplitude
Modulation is provided separately, and realizes independent control phase of light wave information and light wave amplitude information, carries out light wave using light shutter device 200
The modulation of amplitude information, carries out the modulation of phase of light wave information using phase controlling plate 300, is conducive to improving to modulation object
Control ability, realizes high-quality holographic display.And it is possible to adopt phase controlling plate 300 modulated light wave phase information, permissible
The naked eye three-dimensional realizing various visual angles shows.
In the specific implementation, in the above-mentioned holographic display that this utility model embodiment provides, due to phase controlling plate
300 and light shutter device 200 may be contained within the light emission side of backlight 100, therefore, specifically, phase controlling plate 300 can be as figure
Shown in 1, it is arranged at backlight 100 and light shutter device 200；Can also be as shown in Fig. 2 phase controlling plate 300 be arranged at light opens
Close the light emission side of device 200, be not limited thereto.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, for providing coherent reference light
Backlight 100, OLED backlight can be adopted in the specific implementation, LED backlight etc. can be adopted, can also be using dynamic
Backlight, here does not limit.And, it is preferred that interfere and diffraction to produce beneficial to coherent reference light, in this utility model
In the above-mentioned holographic display that embodiment provides, the coherent reference light that backlight 100 provides is preferably relevant collimated light, that is, carry on the back
Light source 100 is preferably collimated backlight.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, for modulating coherent reference light
The light shutter device 200 of light wave amplitude information implementation can have multiple, for example：Can using liquid crystal display device,
Electrochromic device or photochromic device, can also adopt Micro Electro Mechanical System (MEMS) device etc., according to the tune receiving
The device that signal processed is modulated to light wave amplitude information.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, when light shutter device 200 is electroluminescent
During Electrochromic device, as shown in figure 3, electrochromic device specifically includes：The upper substrate 210 relatively put and infrabasal plate 220, and
It is arranged at the electrochromic material layer 230 between upper substrate 210 and infrabasal plate 220, further, electrolyte layer can also be included
240；And, electrolyte layer 240 can be located at electrochromic material layer 230 as shown in Figure 3 near the side of infrabasal plate 220,
May be located at the side near upper substrate 210 for the electrochromic material layer 230, be not limited thereto.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, when light shutter device 200 is selected
During other devices such as liquid crystal display device or photochromic device, similar with the structure of electrochromic device, therefore not to repeat here.
In the specific implementation, in order to realize the modulation for phase of light wave information, provide in this utility model embodiment
In above-mentioned holographic display, phase controlling plate 300 generally comprises multiple separate modulation areas；And, a modulation
Region can be corresponded with one of light shutter device 200 pixel region；Or, modulation areas can also be opened with light
The multiple pixel regions closing in device 200 correspond, and here does not limit.
And, provide in above-mentioned holographic display in this utility model embodiment, adjacent in phase controlling plate 300
Two modulation areas modulate light phase-modulation angle typically different, and the regulating power of phase-modulation angle is general
Control in 0-2 π, that is, phase adjusted angular range is chosen in 0-2 π.
In the specific implementation, in order to realize the display of dynamic holographic image, above-mentioned in the offer of this utility model embodiment
In holographic display, specifically can realize holographic display by following three kinds of modes：The first, modulated light wave amplitude information enters
Mobile state changes, and the phase-modulation angle of modulated light wave phase information is relatively fixed；Second, modulated light wave amplitude information enters
Mobile state changes, and the phase-modulation angle of modulated light wave phase information also according to the change of viewing angle dynamic change；The
Three kinds, modulated light wave amplitude information is relatively fixed, and realizes dynamic holographic by the phase-modulation angle of modulated light wave phase information
Display.Based on this, in the above-mentioned holographic display that this utility model embodiment provides, each tune in phase controlling plate 300
The phase-modulation angle of area modulation light processed can be relatively fixed, or it is also possible to according to the amplitude-modulated signal receiving
Dynamic change.
Specifically, in the above-mentioned holographic display that this utility model embodiment provides, according to whether phase place control
In making sheet 300, each modulation areas dynamic regulation phase-modulation angle, can select the realization side of specific phase controlling plate 300
Formula, such as when each modulation areas in being relatively fixed phase controlling plate 300 modulate the phase-modulation angle of light, phase controlling
Plate 300 can select raster phase panel, photosphere thickness phase controlling plate or liquid crystal phase place panel.When needing phase place control
When each modulation areas in making sheet 300 modulate the phase-modulation angle dynamic change of light, phase controlling plate 300 can select liquid
Crystalline phase position panel.
Wherein, specifically, raster phase panel refers to that in phase controlling plate 300, each modulation areas setting screen periods are not
Same nanometer grating, to realize carrying out different degrees of phase angle modulation for the phase of light wave information of the light passing through.Light
Thickness degree phase controlling plate refers to that in phase controlling plate 300, each modulation areas arrange the different pellicular cascade of thickness, right to realize
Phase of light wave information in the light passing through carries out different degrees of phase angle modulation.Liquid crystal phase place panel refers to phase place control
The individually controllable liquid crystal cell of each modulation areas setting in making sheet 300, by the control to the liquid crystal molecule anglec of rotation in liquid crystal cell,
To realize carrying out different degrees of phase angle modulation for the phase of light wave information of the light passing through.
Based on the design of same utility model, this utility model embodiment additionally provides a kind of display side of holographic display
Method, because the principle of this display packing solve problem is similar to a kind of aforementioned holographic display, the therefore reality of this display packing
Apply the enforcement that may refer to holographic display, repeat no more in place of repetition.
Specifically, a kind of display packing of holographic display that this utility model embodiment provides, comprises the following steps：
Backlight provides coherent reference light；The phase of light wave information of coherent reference light modulated by phase controlling plate；Light shutter device is according to connecing
Receive the light wave amplitude information that modulated signal modulates coherent reference light, to realize dynamic holographic display.
In the specific implementation, signal source can carry out amplitude information and phase place according to the hologram image information of required display
The separation of information, afterwards modulation intelligence is loaded onto in modulated signal and is sent to light shutter device and is regulated and controled, simultaneously acceptable
According to phase information, phase controlling plate is regulated and controled, or using the phase controlling plate of fixed modulation, phase of light wave information is entered
Row modulation；By light shutter device modulated light wave amplitude information, simultaneously after phase controlling plate modulated light wave phase information, can
To realize the reproduction of hologram image.
The above-mentioned holographic display that this utility model embodiment provides, including：For providing the backlight of coherent reference light
Source, for modulating the light shutter device of the light wave amplitude information of coherent reference light, and for modulating the light wave of coherent reference light
The phase controlling plate of phase information；Wherein, phase controlling plate and light shutter device are arranged at the light emission side of backlight.Due to by phase
Position modulation and Modulation and Amplitude Modulation are provided separately, and realize independent control phase of light wave information and light wave amplitude information, using light switch
Part carries out the modulation of light wave amplitude information, carries out the modulation of phase of light wave information using phase controlling plate, is conducive to raising to exchange
The control ability of object processed, realizes high-quality holographic display.And it is possible to using phase controlling plate modulated light wave phase place letter
Breath, it is possible to achieve the naked eye three-dimensional of various visual angles shows.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to this utility model
New spirit and scope.So, if of the present utility model these modification and modification belong to this utility model claim and
Within the scope of its equivalent technologies, then this utility model is also intended to comprise these changes and modification.
Claims (8)
1. a kind of holographic display is it is characterised in that include：For providing the backlight of coherent reference light, for modulating
State the light shutter device of the light wave amplitude information of coherent reference light, and for modulating the phase of light wave letter of described coherent reference light
The phase controlling plate of breath；Wherein, described phase controlling plate and described light shutter device are arranged at the light emission side of described backlight.
2. holographic display as claimed in claim 1 is it is characterised in that described phase controlling plate is arranged at described backlight
And described light shutter device between；Or, described phase controlling plate is arranged at the light emission side of described light shutter device.
3. holographic display as claimed in claim 1 it is characterised in that described phase controlling plate include multiple separate
Modulation areas；One described modulation areas is corresponded with one of described light shutter device pixel region, or, an institute
State modulation areas to correspond with the multiple pixel regions in described light shutter device.
4. holographic display as claimed in claim 3 is it is characterised in that two adjacent described modulation areas modulation are described
The phase-modulation angle of coherent reference light is different.
5. holographic display as claimed in claim 4 is it is characterised in that each described modulation areas modulate described coherent reference
The phase-modulation angle of light is relatively fixed or according to the amplitude-modulated signal change receiving.
6. holographic display as claimed in claim 4 is it is characterised in that described phase controlling plate controls for raster phase
Plate, photosphere thickness phase controlling plate or liquid crystal phase place panel.
7. holographic display as claimed in claim 1 it is characterised in that described light shutter device be liquid crystal display device,
Electrochromic device, or photochromic device.
8. the holographic display as described in any one of claim 1-7 it is characterised in that described backlight provide phase trepang
Examining light is relevant collimated light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044927.6U CN205992123U (en) | 2016-09-08 | 2016-09-08 | A kind of holographic display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044927.6U CN205992123U (en) | 2016-09-08 | 2016-09-08 | A kind of holographic display |
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| Publication Number | Publication Date |
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| CN205992123U true CN205992123U (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621044927.6U Active CN205992123U (en) | 2016-09-08 | 2016-09-08 | A kind of holographic display |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154799A (en) * | 2016-09-08 | 2016-11-23 | 京东方科技集团股份有限公司 | A kind of holographic display and display packing thereof |
| CN109831661A (en) * | 2019-01-11 | 2019-05-31 | 东南大学 | A kind of programmable composite stereo display system in space |
-
2016
- 2016-09-08 CN CN201621044927.6U patent/CN205992123U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154799A (en) * | 2016-09-08 | 2016-11-23 | 京东方科技集团股份有限公司 | A kind of holographic display and display packing thereof |
| WO2018045816A1 (en) * | 2016-09-08 | 2018-03-15 | 京东方科技集团股份有限公司 | Holographic display device and display method thereof |
| CN109831661A (en) * | 2019-01-11 | 2019-05-31 | 东南大学 | A kind of programmable composite stereo display system in space |
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