CN110824724A - 3D display optical system and device - Google Patents
3D display optical system and device Download PDFInfo
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- CN110824724A CN110824724A CN201911025471.7A CN201911025471A CN110824724A CN 110824724 A CN110824724 A CN 110824724A CN 201911025471 A CN201911025471 A CN 201911025471A CN 110824724 A CN110824724 A CN 110824724A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/40—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images giving the observer of a single two-dimensional [2D] image a perception of depth
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Abstract
The invention discloses a 3D display optical system and a device, comprising: an optical system, optical system contains a display screen, a liquid crystal phase modulation unit, a plurality of pictures of display screen foundation a plurality of time display, a plurality of pictures foundation a corresponding time is shown in liquid crystal phase modulation unit forms a plurality of phase diagrams, a plurality of phase diagrams foundation a plurality of virtual images of corresponding time formation in the display screen rear, a plurality of virtual images superpose in a time cycle and become an formation of image.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a 3D display optical system and a device.
[ background of the invention ]
In recent years, with the rapid development of display technologies, various 3D display technologies have been increasingly developed. Currently, existing 3D display technologies can be divided into parallax naked-eye 3D display and true 3D display according to whether light emitted by an object is reduced or not. The former realizes the split-beam display of the left and right eyes by using devices such as 3D glasses, slits, lenticular gratings and the like, and the human brain synthesizes images respectively received by the left and right eyes into 3D vision, but because the human eyes are always focused on the plane where the display is located, the 3D images synthesized by the brain often exist outside or inside the screen, which is just in conflict with the physiological convergence adjustment of the human eyes.
Therefore, viewing a parallax 3D display for a long time may cause people to feel eye discomfort and even dizziness. Based on this, the future development direction of 3D display is certainly the aforementioned second kind of "true 3D" display technology, and at present, the holographic and volumetric 3D display technology is slowly developed due to the limitation of display media, the loss of integrated imaging resolution is serious, and the requirement of the multi-layer optical field and multi-focal plane method for the number of layers of spatial stacking and temporal stacking is high.
Therefore, there is a need to provide a 3D display optical system and device to solve the problems in the prior art.
[ summary of the invention ]
In order to solve the above technical problems, the present invention provides a 3D display optical system and an apparatus, including an optical system including a display screen and a liquid crystal phase modulation unit, wherein the display screen displays a plurality of images according to a plurality of times, the plurality of images are displayed in the liquid crystal phase modulation unit according to the corresponding times to form a plurality of phase diagrams, the plurality of phase diagrams form a plurality of virtual images behind the display screen according to the corresponding times, and the plurality of virtual images are superimposed into an image in a time period.
According to one aspect of the invention, the phase of the liquid crystal phase modulation unit is between 0 and 2 pi.
According to one aspect of the present invention, the plurality of times includes a first time, a second time and a third time.
According to one aspect of the invention, the plurality of times belong to the same time period.
According to one aspect of the invention, the time interval of the plurality of times is less than 1/24 seconds.
According to one aspect of the invention, the liquid crystal cell is a vertical alignment mode (VA mode).
According to one aspect of the present invention, the display screen comprises an upper substrate, an Indium Tin Oxide (ITO) common electrode, a liquid crystal, a plurality of Indium Tin Oxide (ITO) strip electrodes, a lower substrate, and a polarizer, wherein the upper substrate is disposed on the Indium Tin Oxide (ITO) common electrode, the Indium Tin Oxide (ITO) common electrode is disposed on the liquid crystal, the liquid crystal is disposed on the Indium Tin Oxide (ITO) strip electrodes, the Indium Tin Oxide (ITO) strip electrodes are disposed on the lower substrate, and the lower substrate is disposed on the polarizer.
According to one aspect of the invention, each of the Indium Tin Oxide (ITO) strip electrodes is oriented in a uniform direction.
According to one aspect of the present invention, the plurality of Indium Tin Oxide (ITO) strip electrodes are oriented in a direction corresponding to a polarization direction of the polarizer.
According to one aspect of the invention, the display screen includes a color-resist layer.
According to the invention, the invention provides a non-near-eye curved focusing 3D display optical system, curved focusing is realized according to the displayed content by utilizing the phase modulation function of a liquid crystal box, the time multiplexing technology is adopted, the focusing layer is rapidly switched, the depth information of an object is furthest reduced after a plurality of focusing curved surfaces are superposed, convergence needs to be adjusted when the human eyes observe images at different depths, real physiological feeling is given to people, and discomfort of eyes cannot be felt; meanwhile, the number of layers of the focusing curved surface required by the method under the same depth of field is far less than the number of screen layers required by a multilayer light field or the number of focal plane layers of time multiplexing of a multi-focal plane display method.
[ description of the drawings ]
FIG. 1 is a block diagram of a 3D display optical system and apparatus according to the present invention;
FIG. 2 is a first time virtual image display diagram according to the present invention;
FIG. 3 is a second virtual image display diagram according to the present invention;
FIG. 4 is a third time virtual image display diagram according to the present invention;
FIG. 5 is a schematic structural diagram of a display panel according to the present invention;
FIG. 6 is a schematic structural diagram of an ITO strip electrode of the present invention.
[ detailed description ] embodiments
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for illustrating the invention and enabling those skilled in the art to fully describe the technical contents of the present invention so that the technical contents of the present invention can be more clearly and easily understood. The present invention may, however, be embodied in many different forms of embodiments and the scope of the present invention should not be construed as limited to the embodiments set forth herein.
In an embodiment, as shown in fig. 1, the 3D display optical system and apparatus includes an optical system 110, the optical system includes a display 111 and a liquid crystal phase modulation unit 112, the display 111 displays a plurality of frames according to a plurality of times, the plurality of frames are displayed on the liquid crystal phase modulation unit 112 according to the corresponding times to form a plurality of phase diagrams, the plurality of phase diagrams form a plurality of virtual images behind the display 111 according to the corresponding times, and the plurality of virtual images are superimposed into an image in a time period.
In one embodiment, the plurality of times includes a first time t1, a second time t2, and a third time t 3.
As shown in fig. 2, the 3D display optical device decomposes a 3D scene to be displayed into a plurality of focusing surfaces, a first frame 1111 is displayed on the display panel 111 at the first time t1, the first frame 1111 is displayed on the liquid crystal phase modulation unit 112 according to the first time t1, a first phase diagram 1121 is formed, and the first phase diagram 1121 forms a first virtual image 1131 behind the display panel 111 according to the first time transmission lens imaging principle.
As shown in fig. 3, the 3D display optical device decomposes a 3D scene to be displayed into a plurality of curved focusing surfaces, a second frame 1112 is displayed on the display 111 at the second time t2, the second frame 1112 is displayed on the liquid crystal phase modulation unit 112 according to the second time t2, a second phase diagram 1122 is formed, and the second phase diagram 1122 forms a second virtual image 1132 behind the display 111 according to the second time transmission lens imaging principle.
As shown in fig. 4, the 3D display optical device decomposes the 3D scene to be displayed into a plurality of curved focusing surfaces, a third frame 1113 is displayed on the display panel 111 at the third time t3, the third frame 1113 is displayed on the lc phase modulation unit 112 according to the third time t3, a third phase diagram 1123 is formed, and the third phase diagram 1123 forms a third virtual image 1133 behind the display panel 111 according to the third time principle of lens imaging.
In an embodiment, the plurality of times belong to the same time period.
In an embodiment, the liquid crystal phase modulation unit 112 employs a time multiplexing technique to rapidly switch the focal plane, and rapidly switches the first virtual image 1131 formed at the first time t1, the second virtual image 1132 formed at the second time t2, and the third virtual image 1133 formed at the third time t3 within the same time period, so that a visual scene formed by overlapping the three virtual images of the human eyes 200 sees a 3D scene approximately reduced and displayed.
In one embodiment, the effective thickness of the liquid crystal cell 100 is such that the phase retardation generated by the liquid crystal phase modulation unit 112 is 0-2 pi, which is about 550nm for the central wavelength of the display spectrum, however, the corresponding actual thickness of the liquid crystal cell is determined according to the type of the liquid crystal used.
In one embodiment, the plurality of time intervals is less than 1/24 seconds.
In one embodiment, the liquid crystal cell 100 is a vertical alignment mode (VA mode).
In one embodiment, as shown in fig. 5, the display 111 includes an upper substrate 1124, an Indium Tin Oxide (ITO) common electrode 1125, a liquid crystal 1126, a plurality of ITO stripe electrodes 1127, a lower substrate 1128, and a polarizer 1129, wherein the upper substrate 1124 is disposed on the ITO common electrode 1125, the ITO common electrode 1125 is disposed on the liquid crystal 1126, the liquid crystal 1126 is disposed on the ITO stripe electrodes 1127, the ITO stripe electrodes 1127 are disposed on the lower substrate 1128, and the lower substrate 1128 is disposed on the polarizer 1129.
In one embodiment, as shown in fig. 6, the Indium Tin Oxide (ITO) strip electrodes 1127 in each pixel region are uniformly oriented.
In one embodiment, the plurality of Indium Tin Oxide (ITO) strip electrodes 1127 are oriented in the same direction as the polarization direction of the polarizer 1129.
In one embodiment, the display 111 includes a color resist layer.
In one embodiment, the display 111 does not include a color resist layer.
According to the embodiment, the invention provides a non-near-eye curved focusing 3D display optical system, curved focusing is realized according to displayed contents by utilizing a phase modulation unit of a liquid crystal box, a time multiplexing technology is adopted, a focusing layer is rapidly switched, the depth information of an object is furthest reduced after a plurality of focusing curved surfaces are superposed, convergence needs to be adjusted when the human eye observes images at different depths, real physiological feeling is given to people, and discomfort of eyes cannot be felt; meanwhile, the number of layers of the focusing curved surface required by the method under the same depth of field is far less than the number of screen layers required by a multilayer light field or the number of focal plane layers of time multiplexing of a multi-focal plane display method.
The 3D display optical system and the apparatus provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A3D display optical system and device, comprising:
an optical system comprises a display screen and a liquid crystal phase modulation unit;
the display screen displays a plurality of pictures according to a plurality of times;
the plurality of pictures are displayed on the liquid crystal phase modulation unit according to the corresponding time to form a plurality of phase diagrams;
the phase images form a plurality of virtual images behind the display screen according to the corresponding time;
the virtual images are superimposed into an image over a period of time.
2. The 3D display optical device according to claim 1, wherein the phase of the liquid crystal phase modulation unit is between 0-2 pi.
3. The 3D display optical device according to claim 1, wherein the plurality of times includes a first time, a second time, and a third time.
4. 3D display optics according to claim 1, characterised in that the times belong to the same time period.
5. 3D display optics according to claim 1, characterised in that the time intervals of the plurality of times are taken to be less than 1/24 seconds.
6. The 3D display optical device according to claim 1, wherein the liquid crystal cell is a vertical alignment mode (VA mode).
7. The 3D display optics of claim 1, wherein the display screen comprises an upper substrate, an Indium Tin Oxide (ITO) common electrode, a liquid crystal, a plurality of Indium Tin Oxide (ITO) stripe electrodes, a lower substrate, a polarizer;
the upper substrate is arranged on the Indium Tin Oxide (ITO) common electrode;
the Indium Tin Oxide (ITO) common electrode is arranged on the liquid crystal;
the liquid crystal is arranged on the Indium Tin Oxide (ITO) strip-shaped electrode;
the Indium Tin Oxide (ITO) strip-shaped electrode is arranged on the lower substrate;
the lower substrate is arranged on the polarizer.
8. The 3D display optics of claim 7, wherein each Indium Tin Oxide (ITO) strip electrode is oriented uniformly.
9. The 3D display optics of claim 7, wherein the plurality of Indium Tin Oxide (ITO) strip electrodes are oriented in a direction that is coincident with a polarization direction of the polarizer.
10. The 3D display optics of claim 7, wherein the display screen comprises a color-resist layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911025471.7A CN110824724A (en) | 2019-10-25 | 2019-10-25 | 3D display optical system and device |
| PCT/CN2019/118859 WO2021077503A1 (en) | 2019-10-25 | 2019-11-15 | 3d display optical system and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911025471.7A CN110824724A (en) | 2019-10-25 | 2019-10-25 | 3D display optical system and device |
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| CN110824724A true CN110824724A (en) | 2020-02-21 |
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| CN201911025471.7A Pending CN110824724A (en) | 2019-10-25 | 2019-10-25 | 3D display optical system and device |
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| CN (1) | CN110824724A (en) |
| WO (1) | WO2021077503A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112764702A (en) * | 2021-01-19 | 2021-05-07 | 苏州维卡幻境智能科技有限公司 | Holographic remote interaction device and control method thereof |
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| WO2021077503A1 (en) | 2021-04-29 |
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