CN108196374A - Display device - Google Patents
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- CN108196374A CN108196374A CN201711433195.9A CN201711433195A CN108196374A CN 108196374 A CN108196374 A CN 108196374A CN 201711433195 A CN201711433195 A CN 201711433195A CN 108196374 A CN108196374 A CN 108196374A
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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
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
This application provides a kind of display devices.The display device includes：High density is directed toward light unit, and including multiple point light sources, high density is directed toward the light that light unit is used to send out being differently directed property of multi beam；Image-display units, it is arranged on the side that high density is directed toward light unit, each light forms the image light with image information after image-display units, intersect, and be incident in the same eyes of people the side that at least two beam images light are directed toward light unit in the separate high density of image-display units.The display device can project multiple viewpoints in pupil, form light field and show, since the lenticular depth of focus changes, and can be consistent with the convergence depth of eyes, so as to alleviate the phenomenon that vision influx adjusts conflict well.Also, it is directed toward light unit using high-resolution high density and can be obtained by high-resolution image.
Description
Technical field
This application involves nearly eye 3D display field, in particular to a kind of display device.
Background technology
With the development of augmented reality (AR) and virtual reality (VR) technology, near-to-eye displays also begin to obtain market
Extensive concern.These display devices are because that can bring splendid feeling of immersion and good 3D display effect, it is considered to be great hair
The display product of exhibition prospect.
At present, occurred VR and AR glasses on the market, these glasses, which have plenty of to generate using binocular parallax fusion, to be stood
Body-sensing, the appearance of these glasses promote research of the people for display device.
Although these display devices can bring new vision revolution, from the point of view of user experience at this stage, at present
Some display device generally existing vision influxs adjust conflict (Vergence-Accommodation Conflict, it is simple below
Claim VAC) the problem of, when briefly human eye is normally watched, two basic functions, the convergence of binocular and the tune of monocular can be used
Coke, but when display device is used to carry out ornamental, influx is adjusted with the variation of content in continuous variation, i.e. eye motion
The convergence depth of generation can change with the spatial position of 3D objects, use the function of binocular convergence；And by crystalline lens
The depth of focus that adjusting generates is always on fixed display screen, i.e., lenticular focal distance is then constant, this results in gathering
Depth of focus degree is inconsistent with assembling depth, and crystalline lens does not have focusing control change, does not use the function of monocular focusing, and this mismatch is made
It will appear in the experience that nearly eye is shown discomfort physiologically, i.e., the dizzy sense that people usually mention into people.This problem is tight
Affect the universal of display device again, therefore, solve the problems, such as VAC have become the mostly important subject of nearly eye display field it
One.
Occurs the scheme for much solving the problems, such as display device VAC in industry at present, still, these schemes have knot
The problems such as structure is complicated, resolution ratio is relatively low and visual field is limited.
Invention content
The main purpose of the application is to provide a kind of display device, simple in structure to solve to be difficult to provide in the prior art
And the problem of can solving the problems, such as the display device of VAC.
To achieve these goals, according to the one side of the application, a kind of display device is provided, the display device packet
It includes：High density is directed toward light unit, and including multiple point light sources, above-specified high density is directed toward light unit for sending out being differently directed property of multi beam
Light；Image-display units, are arranged on the side that above-specified high density is directed toward light unit, and each above-mentioned light is shown by above-mentioned image
Image light is formed after showing unit, the above-mentioned image light of at least two beams is in the separate above-specified high density of above-mentioned image-display units
Intersect the side for being directed toward light unit.
Further, the angle of the intersecting above-mentioned image light of two beams is δ 1,1≤δ of δ, wherein, δ=2arctan (b/
2z), z is the distance of human eye Focused objects, and b is the diameter of pupil.
Further, above-specified high density is directed toward light unit and includes：Light source, including multiple above-mentioned point light sources；It is directed toward to adjust and set
It is standby, it is arranged between above-mentioned light source and above-mentioned image-display units, above-mentioned direction adjustment equipment is used to send out above-mentioned point light source
Multi beam light be adjusted to the light of being differently directed property of multi beam.
Further, above-mentioned direction adjustment equipment includes：Microlens array is arranged on the surface of above-mentioned light source, above-mentioned
Microlens array includes multiple lenticules being arranged in order.
Further, above-mentioned direction adjustment equipment further includes：Convergent lens is arranged on above-mentioned microlens array and above-mentioned figure
As being set between display unit and close to above-mentioned image-display units.
Further, above-mentioned display device further includes：Eyepiece is arranged on the separate above-mentioned highly dense of above-mentioned image-display units
Degree is directed toward the side of light unit.
Further, above-mentioned image-display units include multiple spaced image-regions, an above-mentioned image-region
The light of corresponding a branch of above-mentioned directive property.
Further, above-mentioned display device further includes：Control unit is directed toward light unit and above-mentioned figure with above-specified high density
As display unit is electrically connected, for above-specified high density to be controlled to be directed toward the work shape of light unit and above-mentioned image-display units
State.
Further, above-mentioned light source be array light source, preferably above-mentioned array light source include LCD display, light-emitting diode display,
At least one of OLED display, Micro light-emitting diode displays and Micro OLED displays.
Further, above-mentioned image-display units are the LCD display panel of transmission-type.
Using the technical solution of the application, which includes high density and is directed toward light unit and image-display units,
High density is directed toward the light that being differently directed property of multi beam can be sent out in light unit, these light form figure by image-display units
As light, the side that at least two beam images light are directed toward light unit in the separate high density of image-display units is intersected, and
It is then incident upon in the same eyes of people, the crystalline lens of eyes is focused so that eyes can focus on two therein
On some intersection point of image light, i.e., the intersection point is fallen on the retina, and the intersection point some of other light is fallen before retina
Side or rear so as to not only realize the display that the display of image in itself also achieves the depth information of image, realize 3D
It shows and solves the problems, such as VAC very well.
The display device can project the different viewpoint of multiple distances in pupil, form light field and show so that crystalline lens
The depth of focus change, and consistent with the convergence depth of eyes, so as to alleviating VAC phenomenons well.Also, utilize height
The high density of resolution ratio is directed toward light unit and can be obtained by high-resolution image.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not form the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 shows the index path of display device that a kind of embodiment of the application provides；
Fig. 2 shows the index paths of display device that another embodiment of the application provides；
Fig. 3 shows the index path of display device that the another embodiment of the application provides；
Fig. 4 shows the local index path for the display device that embodiments herein 1 provides；
Fig. 5 shows the local index path for the display device that embodiments herein 2 provides；And
Fig. 6 shows light path schematic diagram during human eye Focused objects.
Wherein, above-mentioned attached drawing is marked including the following drawings：
1st, high density is directed toward light unit；2nd, image-display units；3rd, eyepiece；4th, eyes；11st, light source；12nd, lenticule battle array
Row；13rd, convergent lens；20th, image-region；41st, retina；42nd, crystalline lens；110th, point light source；5th, the picture of object.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be understood that when element (such as layer, film, region or substrate) be described as another element " on " when, this yuan
Intermediary element can may be present directly on another element or also in part.Moreover, in specification and following claims
In, when description has element " connected " to another element, which " can be directly connected to " to another element or pass through third
Element " electrical connection " is to another element.
As background technology is introduced, in the prior art, alleviate or solve the problems, such as VAC display device structure compared with
Complexity, and be difficult to obtain high-resolution image, the technical issues of in order to solve as above, present applicant proposes a kind of display dresses
It puts.
In a kind of typical embodiment of the application, a kind of display device is provided, as shown in Figures 1 to 3, display dress
It puts and is directed toward light unit 1 and image-display units 2 including high density, high density is directed toward light unit 1 and includes multiple point light sources 110, on
It states high density and is directed toward the light that light unit 1 sends out being differently directed property of multi beam after being directed toward adjustment equipment；Image-display units 2 are set
The side that light unit 1 is directed toward in above-specified high density is put, each above-mentioned light forms image light after above-mentioned image-display units 2
Line, at least two above-mentioned image lights are directed toward the side of light unit 1 in the separate above-specified high density of above-mentioned image-display units 2
It is intersecting, also, be then incident in the same eyes 4 of people within the period less than or equal to the retentivity time of eye.
It should be noted that above-mentioned each beam images light all includes at least two parallel light, two beam images light exist
The side that the separate above-specified high density of above-mentioned image-display units 2 is directed toward light unit 1 is intersected, and actually has at least two pairs of light to exist
The side that the separate above-specified high density of above-mentioned image-display units 2 is directed toward light unit 1 is intersected, and the intersection point of these two pair light
Position is different, and the position of the intersection point in this way in human eye is also different, i.e., forms at least two viewpoints in through-holes, it is achieved thereby that
The display of graphics depth information, preferably solves the problems, such as VAC.
Above-mentioned high density, which is directed toward light unit, can send out closeer light so that the object of display it is more three-dimensional, more force
Very, it ensure that the 3D display effect of the display device is more preferable.
The display device includes high density and is directed toward light unit and image-display units, and high density is directed toward in light unit can be with
The light of being differently directed property of multi beam is sent out, these light form image light, at least two beam images by image-display units
Intersect, and be then incident upon the same eye of people the side that light is directed toward light unit in the separate high density of image-display units
In eyeball, the crystalline lens of eyes is focused so that eyes can be focused on some intersection point of two image lights therein, i.e.,
The intersection point is fallen on the retina, as shown in Figure 1, the corresponding image in the intersection position is clearly；The intersection point of other light has
The front or behind fallen in retina, as shown in Figure 2 and Figure 3, corresponding image is fuzzy, so as to not only realizing figure
As the display of itself also achieves the display of the depth information of image, realize 3D display and solve the problems, such as VAC very well.
The display device can project the different viewpoint of multiple distances in pupil, form light field and show so that crystalline lens
The depth of focus change, and consistent with the convergence depth of eyes, so as to alleviating VAC phenomenons well.Also, utilize height
The high density of resolution ratio is directed toward light unit and can be obtained by high-resolution image.
In order to further ensure intersecting image light can subsequently enter in human eye, in a kind of embodiment of the application,
The angle of the intersecting above-mentioned image light of two beams needs to meet focused condition.Since each beam images light is flat including at least two
Capable image light, so, in the image light intersected in two beams, the angle all same of two image lights arbitrarily intersected,
Focused condition, i.e. 1≤δ of δ are satisfied by, wherein, δ=2arctan (b/2z), as shown in fig. 6, z is the distance of human eye Focused objects,
B is the diameter of pupil, and a certain picture point on the picture 5 of object is seen after human eye Focused objects.
Certainly, the angle of the intersecting above-mentioned image light of two beams of the application is not limited in above-mentioned range, this field
Technical staff can select suitable angle according to actual conditions, as long as can ensure that intersecting image light can subsequently enter
In human eye.
In a kind of embodiment of the application, as shown in Figure 1 to Figure 3, above-specified high density be directed toward light unit 1 include light source 11 with
Adjustment equipment is directed toward, light source 11 includes multiple above-mentioned point light sources 110, which is high intensity light source；It is directed toward adjustment equipment setting
Between above-mentioned light source 11 and above-mentioned image-display units, above-mentioned direction adjustment equipment is used for send out above-mentioned point light source 110
Multi beam light is adjusted to the light of being differently directed property of multi beam.
Light source in the application can be any high intensity light source of the prior art, and those skilled in the art can be with
Suitable light source is selected according to actual conditions.
In a kind of embodiment of the application, above-mentioned light source 11 is array light source, which includes multiple array arrangements
Point light source, lambertian distribution is presented in each point light source, and the light source of low-angle is converged to, and have by being directed toward adjustment equipment by light source
There is certain direction.
Need to illustrate when, can be that a point light source can correspond to one and be directed toward or multiple light in light source
Source corresponds to a direction, and those skilled in the art can light a point light source or light a region model according to actual conditions
Point light source in enclosing corresponds to a direction.
In a kind of implementation of the application, above-mentioned array light source include LCD display, light-emitting diode display, OLED display,
At least one of Micro light-emitting diode displays and Micro OLED displays.
In order to which the direction for more simply and efficiently realizing the light sent out to point light source is adjusted, as shown in Figure 1 to Figure 3, this
In a kind of embodiment of application, above-mentioned direction adjustment equipment includes microlens array 12, and microlens array 12 is arranged on above-mentioned light
On the surface in source 11, above-mentioned microlens array 12 includes multiple lenticules being arranged in order.
Above-mentioned microlens array can only the Ray Of Light for lambertian distribution that send out point light source be adjusted to the angle of divergence compared with
The Ray Of Light for the lambertian distribution that point light source is sent out can also be adjusted to the light beam being centainly directed toward by small Ray Of Light
Line, the beam light include multiple parallel light.
The light of the directive property of the application just refers to the light with certain orientation, and the light of a branch of directive property just refers to wrap
Include the light of multiple parallel directive property.
In another embodiment of the application, lambertian distribution that above-mentioned microlens array directly sends out point light source it is a branch of
Light is adjusted to have the Ray Of Light being centainly directed toward, and each lenticule in the microlens array at least covers two above-mentioned light
Source 110.Such a lenticule could simultaneously be adjusted two-beam line, and then could two-beam line be adjusted to two simultaneously
Beam has the light of directive property.
In order to further ensure the light beam that will pass through the being adjusted to point to property of multi beam light of microlens array, the one of the application
In kind embodiment, as shown in Figure 1 to Figure 3, above-mentioned direction adjustment equipment further includes convergent lens 13, and convergent lens 13 is arranged on
It states between microlens array 12 and above-mentioned image-display units 2 and is set close to above-mentioned image-display units 2.
Above-mentioned convergent lens can be any lens with converging action of the prior art, can be common light
Lens or Fresnel Lenses or Fresnel film.It is suitable that those skilled in the art can select according to actual conditions
Convergent lens.
In order to enable people can see the clearer image of bigger, in a kind of embodiment of the application, such as Fig. 1 to Fig. 3 institutes
Show, above-mentioned display device further includes eyepiece 3, and the separate above-specified high density that eyepiece 3 is arranged on above-mentioned image-display units 2 is directed toward light
The side of unit 1, for by image magnification.
Above-mentioned eyepiece can be any lens with amplification of the prior art, can be common optical lens
Mirror or Fresnel Lenses or Fresnel film.Those skilled in the art can select suitable mesh according to actual conditions
Mirror.
In the another embodiment of the application, above-mentioned image-display units 2 include multiple spaced image-regions 20,
One above-mentioned image-region 20 corresponds to the light of a branch of above-mentioned directive property.The light of the light abbreviation directive property of a branch of above-mentioned directive property
The light shafts of harness, i.e. directive property are corresponded with image-region 20.It can ensure the corresponding image of each image-region in this way
Good 3D effect can be presented.Here one-to-one correspondence refers not only to the one-to-one correspondence on position, also refers in working condition
One-to-one correspondence, that is, when lighting the corresponding point light source of directive property light shafts or multiple point light sources, while image is controlled to show
Unit shows the image in corresponding image-region.
Certainly, the image-region in the image-display units of the application might not be arranged at intervals, the image district of part
Domain can also be overlapped, and the parts of images being overlapped in this way may can not realize good 3D effect.
In order to preferably control the display for lighting and controlling image-display units of the point light source in light source, above-mentioned display
Device further includes control unit, and above-mentioned control unit is directed toward light unit 1 with above-specified high density and above-mentioned image-display units 2 divide
It is not electrically connected, for above-specified high density to be controlled to be directed toward light unit 1 and the working condition of above-mentioned image-display units 2.
When different image-regions has overlapping, in order to realize better 3D display effect, a kind of embodiment of the application
In, it may be used when time-division multiplex technology controls two corresponding point light source differences of image-region with lap and light,
And image-display units is controlled to show the image of the two image-regions at different times, in the process, it is ensured that point
While bright spot light source, control image-display units show the image of corresponding image-region, and then realize that two beams are differently directed
Property light enter in human eye two moment, also, ensure the two moment difference be less than the retentivity time of eye, so as to fulfill
The display of preferable 3D effect.
Certainly, it during for the image-region in image-display units for spaced situation, can also be answered using the time-division
It is lighted during the corresponding point light source difference of two image-regions with technology to control, and controls image-display units when different
The image for showing the two image-regions is carved, the display resolution of 3D rendering can be improved in this way.
Image-display units 2 in the application can be the display equipment of any structure of the prior art, this field skill
Art personnel can select the image-display units of suitable construction according to actual conditions.
In a kind of embodiment of the application, LCD display panel of the above-mentioned image-display units 2 for transmission-type, the display surface
Plate has many advantages, such as that at low cost, brightness is high and contrast is higher, and then realizes better display effect.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The embodiment of body illustrates the technical solution of the application.
Embodiment 1
As shown in Figure 1 to Figure 3, which includes high density direction light unit 1, image-display units 2 and control
Unit, wherein, high density is directed toward light unit 1 and includes light source 11, microlens array 12 and convergent lens 13.Image-display units
2 include the image-region at multiple intervals, and each image-region is used for the display of different images.The position relationship of each structure is shown in Fig. 1
To Fig. 3.
Light source is array light source, that is, includes the point light source of multiple array arrangements, specially Micro LED, with superelevation
The characteristics of resolution ratio, brightness is high.Lenticule corresponds to one point light source of covering.
Image-display units 2 are LCD display panel.
For the diameter range of general pupil in 2mm to 7mm, it is 5mm that the present embodiment, which takes pupil diameter,.
The eye distance (i.e. closest to the eyepiece of eyes to the distance of eyes) of general nearly eye display device is in 18mm to 25mm
When it is more suitable, the present embodiment take eye distance be 20mm.
The course of work of the display device can be found in Fig. 4, specifically include：
Control unit controls and lights two point light sources simultaneously, and the spacing between two point light sources is 2.53mm, corresponding micro-
The Ray Of Light for the lambertian distribution that lens send out corresponding point light source converges to the Ray Of Light of 30 ° of light shape angles,
The focal length f1 of convergent lens 13 is 4.73mm, after convergent lens, two-beam line pair that two point light sources are sent out
Two directions should be formed, light source is located at the focal plane of convergent lens 13, i.e., the light that point light source is sent out is after convergent lens 13
It being formed close to parallel a branch of light, the corresponding image of light of two beam directive property is presented in control unit control LCD display panel,
The image light of two beam directive property is formed, the image light of this two beams directive property is formed in front of LCD display panel to cross, eyepiece
3 focal length f2 is 53mm, and for eyepiece 3 apart from positioned at 13 front 14.57mm positions of convergent lens, the image light to cross passes through eyepiece 3
The eyes 4 of people are converged in afterwards, and the angle for entering the intersecting image light of human eye at this time meets human eye focused condition just, i.e.,
Crystalline lens 42 can carry out focusing action automatically according to distant view, be located on retina 41 so as to fulfill some intersection points, some intersection points
Before retina 41, after some intersection points are located at retina 41.
Embodiment 2
As shown in figure 5, difference from Example 1 is, two image-regions have lap, and then the image shown
Also there is the part of overlapping.
In the specific course of work, lighted in control unit two point light sources of control at the t1 moment for one, another is in t2
Moment lights, i.e., control unit controls two point light source sequential to light；And control image-display units show correspondence at the t1 moment
Image-region image, the image of corresponding image-region is shown at the t2 moment, i.e. control unit controls two image-regions
Corresponding image sequential shows, also, | t2-t1 | less than the retentivity time of eye of human eye.So as to real preferable 3D effect.
It can be seen from the above description that the application the above embodiments realize following technique effect：
The display device of the application includes high density and is directed toward light unit and image-display units, and high density is directed toward light unit
In can send out the light of being differently directed property of multi beam, these light form image light by image-display units, at least two
Intersect, and be then incident upon the same of people the side that beam images light is directed toward light unit in the separate high density of image-display units
In one eye, the crystalline lens of eyes is focused so that eyes can focus on some friendship of two image lights therein
On point, i.e., the intersection point is fallen on the retina, and the intersection point some of other light falls the front or behind in retina, so as to not
The display that the display of image in itself also achieves the depth information of image is only realized, 3D display is realized and solves very well
VAC problems.
The display device can project the different viewpoint of multiple distances in pupil, form light field and show so that crystalline lens
The depth of focus change, and consistent with the convergence depth of eyes, so as to alleviating VAC phenomenons well.Also, utilize height
The high density of resolution ratio is directed toward light unit and can be obtained by high-resolution image.
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for the skill of this field
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of display device, which is characterized in that the display device includes：
High density is directed toward light unit (1), and including multiple point light sources (110), it is more for sending out that the high density is directed toward light unit (1)
The light of being differently directed property of beam；And
Image-display units (2), are arranged on the side that the high density is directed toward light unit (1), and each light passes through the figure
As display unit (2), image light of the formation with image information, at least two beam described image light are shown in described image afterwards
Show that the side that light unit (1) is directed toward far from the high density of unit (2) is intersected.
2. display device according to claim 1, which is characterized in that the angle of two intersecting beam described image light is δ
1, δ 1≤δ, wherein, δ=2arctan (b/2z), z are the distance of human eye Focused objects, and b is the diameter of pupil.
3. display device according to claim 1, which is characterized in that the high density is directed toward light unit (1) and is included：
Light source (11), including multiple point light sources (110)；And
Adjustment equipment is directed toward, is arranged between the light source (11) and described image display unit, the direction adjustment equipment is used
The light of being differently directed property of multi beam is adjusted in the multi beam light for sending out the point light source (110).
4. display device according to claim 3, which is characterized in that the direction adjustment equipment includes：
Microlens array (12), is arranged on the surface of the light source (11), the microlens array (12) including it is multiple successively
The lenticule of arrangement.
5. display device according to claim 4, which is characterized in that the direction adjustment equipment further includes：
Convergent lens (13) is arranged between the microlens array (12) and described image display unit (2) and close to described
Image-display units (2) are set.
6. display device according to claim 1, which is characterized in that the display device further includes：
Eyepiece (3) is arranged on the side that light unit (1) is directed toward far from the high density of described image display unit (2).
7. display device according to claim 1, which is characterized in that described image display unit (2) includes multiple intervals
The image-region (20) of setting, the light of the corresponding a branch of directive property of a described image region (20).
8. display device according to claim 1, which is characterized in that the display device further includes：
Control unit is directed toward light unit (1) with the high density and described image display unit (2) is electrically connected, is used for
The high density is controlled to be directed toward light unit (1) and the working condition of described image display unit (2).
9. display device according to claim 3, which is characterized in that the light source (11) is array light source, preferably described
Array light source includes LCD display, light-emitting diode display, OLED display, Micro light-emitting diode displays and Micro OLED displays
At least one of.
10. display device according to claim 1, which is characterized in that described image display unit (2) is transmission-type
LCD display panel.
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| CN201711433195.9A CN108196374A (en) | 2017-12-26 | 2017-12-26 | Display device |
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| CN201711433195.9A CN108196374A (en) | 2017-12-26 | 2017-12-26 | Display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111258073A (en) * | 2020-03-30 | 2020-06-09 | 武汉理工大学 | Glasses with reflective display screen |
| CN111624784A (en) * | 2020-06-23 | 2020-09-04 | 京东方科技集团股份有限公司 | Light field display device |
| CN112764216A (en) * | 2019-10-21 | 2021-05-07 | 华为终端有限公司 | Display panel, near-to-eye display optical system and head-mounted display equipment |
| CN114355622A (en) * | 2022-02-28 | 2022-04-15 | 北京京东方技术开发有限公司 | Light modulation element, glasses and 3D display system |
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