CN212965637U - Optical display system and VR equipment - Google Patents
Optical display system and VR equipment Download PDFInfo
- Publication number
- CN212965637U CN212965637U CN202022435136.9U CN202022435136U CN212965637U CN 212965637 U CN212965637 U CN 212965637U CN 202022435136 U CN202022435136 U CN 202022435136U CN 212965637 U CN212965637 U CN 212965637U
- Authority
- CN
- China
- Prior art keywords
- light
- module
- optical
- state
- polarized light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 106
- 230000010287 polarization Effects 0.000 claims abstract description 54
- 230000003321 amplification Effects 0.000 claims description 20
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses an optical display system and VR equipment relates to optical display technical field, and optical display system includes: the device comprises a display image source, a polarization light splitting module, a light path modulation module, a first light path folding module and a second light path folding module; the polarization light splitting module is internally provided with a light splitting surface, and light rays emitted by a display image source are divided into a first state polarized light a and a second state polarized light b in an orthogonal state through the light splitting surface after entering the polarization light splitting module, wherein the first state polarized light a enters the first light path folding module; the second state polarized light b is incident on the beam splitting surface and modulated into the first state polarized light c by the light path modulation module, and then is incident on the second light path folding module after being reflected by the beam splitting surface; according to the technical scheme, one display image source can be adopted, binocular display of a single screen is achieved in a polarization multiplexing mode, the binocular display device has the advantages of being small in size and light in weight, and production cost and power consumption are reduced.
Description
Technical Field
The utility model relates to an optical display technical field especially relates to an optical display system and VR equipment.
Background
With the advancement of science and technology, users pay more and more attention to the size and weight of VR products, and therefore, the VR products with small size and light weight need to be developed to meet the market demands. The most limited factor is an optical display system, and the optical display system in the existing product basically adopts double screens to realize binocular VR display, so that the cost is high and the power consumption is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical display system and VR equipment for solve the optical display system who adopts the double screen among the prior art and exist with high costs, the big technical problem that waits of consumption.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, the present application provides an optical display system comprising: the device comprises a display image source, a polarization light splitting module, a light path modulation module, a first light path folding module and a second light path folding module;
a light splitting surface is arranged in the polarization light splitting module, the first opposite side of the polarization light splitting module is a first light emitting side and a second light emitting side respectively, and the second opposite side of the polarization light splitting module is a light incident side and a light path modulation side respectively;
the display image source is arranged on the light incidence side;
the optical path modulation module is arranged on the optical path modulation side;
the first light path folding module is arranged on a first light-emitting side of the polarization light splitting module, and the second light path folding module is arranged on a second light-emitting side of the polarization light splitting module;
after image light emitted by the display image source enters the polarization light splitting module, the image light is split into first state polarized light a and second state polarized light b in an orthogonal state through the light splitting surface, wherein the first state polarized light a is reflected by the light splitting surface and then enters the first light path folding module; the polarized light b in the second state enters the light path modulation module after being incident on the light splitting surface, the polarized light b in the second state is modulated into polarized light c in the first state by the light path modulation module, and the polarized light c in the first state is reflected by the light splitting surface and then is incident on the second light path folding module.
Further, the optical path modulation module comprises a phase delay module and a reflection module;
the phase delay module is arranged on the optical path modulation side of the polarization beam splitting module;
the reflection module is arranged on one side of the phase delay module, which is far away from the polarization beam splitting module;
and the polarized light b in the second state enters the phase delay module to form circularly polarized light, and the circularly polarized light enters the reflection module, is reflected by the reflection module, and then passes through the phase delay module again to form polarized light c in the first state.
Further, the reflection module adopts a light reflection coating, a reflection film, a reflector or a dynamic zoom lens.
Further, the phase delay module adopts 1/4 wave plate, liquid crystal wave plate or crystal wave plate.
Further, the surfaces of the first optical path folding module and the second optical path folding module are set to be a plane or a curved surface.
Further, the device also comprises a first optical amplification module and a second optical amplification module;
the first optical amplification module is arranged on the light emitting side of the first optical path folding module, and the polarized light a in the first state enters the first optical amplification module after being subjected to optical path adjustment by the first optical path folding module;
the second optical amplification module is arranged on the light emitting side of the second light path folding module, and the polarized light c in the first state enters the second optical amplification module after being subjected to light path adjustment by the second light path folding module.
Further, the polarized light a in the first state and the polarized light b in the second state are linearly polarized light or circularly polarized light.
Further, the internal light guide medium of the polarization splitting module, the first optical path folding module and the second optical path folding module comprises one or more combinations of glass, polymer and air.
Further, the display image source adopts a single-screen micro LED unpolarized light emitting display.
In a second aspect, the present application provides a VR device comprising: such as the optical display system described above.
Compared with the prior art, the optical display system of the utility model has the following advantages:
in the optical display system provided by the utility model, a light splitting surface is arranged in the polarization light splitting module, the first opposite side of the polarization light splitting module is respectively a first light emitting side and a second light emitting side, the second opposite side of the polarization light splitting module is respectively a light incident side and a light path modulation side, and a display image source is arranged on the light incident side; the light path modulation module is arranged on the light path modulation side, the first light path folding module is arranged on the first light-emitting side of the polarization light splitting module, and the second light path folding module is arranged on the second light-emitting side of the polarization light splitting module; after light emitted by a display image source enters the polarization light splitting module, the light is split into a first state polarized light a and a second state polarized light b in an orthogonal state through the light splitting surface, wherein the first state polarized light a is reflected by the light splitting surface and then enters the first light path folding module, so that an image can enter a right eye; the polarized light b in the second state enters the light splitting surface and then enters the light path modulation module, the light path modulation module modulates the polarized light b in the second state into polarized light c in the first state, and the polarized light c in the first state is reflected by the light splitting surface and then enters the second light path folding module, so that an image can enter a left eye; according to the technical scheme, one display image source can be adopted, binocular display of a single screen is achieved in a polarization multiplexing mode, the binocular display device has the advantages of being small in size and light in weight, and production cost and power consumption are reduced.
The utility model provides a VR equipment, include: an optical display system as described above.
The advantages of the VR device and the optical display system are the same as those of the optical display system in the prior art, and are not described herein again.
Drawings
FIG. 1 is a schematic structural diagram of an optical display system provided in the present application;
fig. 2 is a schematic structural diagram of another optical display system provided in the present application.
Reference numerals:
1-displaying an image source; 2-a polarization beam splitting module; 2-1 light splitting surface; a 3-phase delay module; 4-a reflective module; 5-a second optical path folding module; 5-1-a second reflective surface; 6-a first optical path folding module; 6-1-a first reflective surface; 7-a second optical amplification module; 8-first optical amplification module.
Detailed Description
For the convenience of understanding, the optical display system provided by the embodiments of the present invention will be described in detail below with reference to the drawings.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the application provides an optical display system, and by utilizing the optical display system, binocular display of a single screen can be realized, so that the cost can be saved and the power consumption can be reduced.
As shown in fig. 1, the optical display system includes: the device comprises a display image source 1, a polarization light splitting module 2, a light path modulation module, a first light path folding module 6 and a second light path folding module 5;
the display image source 1 is used for emitting image light, the polarization beam splitting module 2 is located on an emitting path of the display image source 1, and the polarization beam splitting module 2 is used for modulating the image light emitted by the display image source 1;
specifically, a light splitting surface 2-1 is arranged in the polarization light splitting module 2, the light splitting surface 2-1 is used for reflecting polarized light a in a first state and transmitting polarized light b in a second state, first opposite sides (left and right sides in the figure) of the polarization light splitting module 2 are respectively a first light emitting side and a second light emitting side, and second opposite sides (upper and lower sides in the figure) of the polarization light splitting module 2 are respectively a light incident side and a light path modulation side;
the display image source 1 is arranged on the light incidence side of the polarization light splitting module 2 and is used for transmitting an image into the polarization light splitting module 2;
the light path modulation module is arranged on the light path modulation side of the polarization beam splitting module 2 and is used for modulating the polarized light b in the second state into polarized light c in the first state;
the first light path folding module 6 is arranged on a first light-emitting side of the polarization light splitting module 2 and used for modulating the first state polarized light a by a corresponding angle and then emitting the first state polarized light a to the right eye, and the second light path folding module 5 is arranged on a second light-emitting side of the polarization light splitting module 2 and used for modulating the first state polarized light a by a corresponding angle and then emitting the first state polarized light a to the left eye;
with continued reference to FIG. 1, wherein the arrows indicate the propagation paths of the light, the principle of the optical display system is: after image light emitted by a display image source 1 enters a polarization light splitting module 2, the image light is split into first state polarized light a and second state polarized light b in an orthogonal state through a light splitting surface 2-1, wherein the first state polarized light a is reflected by the light splitting surface 2-1 and then enters a first light path folding module 6; the polarized light b in the second state enters the light splitting surface 2-1 and then enters the light path modulation module, the light path modulation module modulates the polarized light b in the second state into polarized light c in the first state, and the polarized light c in the first state is reflected by the light splitting surface 2-1 and then enters the second light path folding module 5.
Compared with the prior art, the optical display system in the embodiment of the application has the following characteristics:
in the optical display system provided by the utility model, a light splitting surface 2-1 is arranged in the polarization light splitting module 2, the first opposite side of the polarization light splitting module 2 is a first light emitting side and a second light emitting side respectively, the second opposite side of the polarization light splitting module 2 is a light incident side and a light path modulation side respectively, and the display image source 1 is arranged at the light incident side; the light path modulation module is arranged on the light path modulation side, the first light path folding module 6 is arranged on the first light-emitting side of the polarization light-splitting module 2, and the second light path folding module 5 is arranged on the second light-emitting side of the polarization light-splitting module 2; after light rays emitted by a display image source 1 enter a polarization light splitting module 2, the light rays are split into first state polarized light a and second state polarized light b in an orthogonal state through a light splitting surface 2-1, wherein the first state polarized light a is reflected by the light splitting surface 2-1 and then enters a first light path folding module 6, so that an image can enter a right eye; the polarized light b in the second state enters the light splitting surface 2-1 and then enters the light path modulation module, the polarized light b in the second state is modulated into polarized light c in the first state by the light path modulation module, and the polarized light c in the first state is reflected by the light splitting surface 2-1 and then enters the second light path folding module 5, so that an image can enter the left eye; according to the technical scheme, the display image source 1 can be adopted, binocular display of a single screen is achieved through a polarization multiplexing mode, and the display device has the advantages of being small in size and light in weight, and production cost and power consumption are reduced.
In a preferred embodiment, the display image source 1 in the embodiment of the present application adopts a single-screen micro led unpolarized light emitting display, and the micro led is a new generation display technology, and has higher brightness, better light emitting efficiency, and lower power consumption than the existing technologies such as OLED.
Of course, the skilled person can choose to replace OLED, LED, LCD, LCOS, etc. displays as the practical application chooses.
In a preferred embodiment, the optical path modulation module comprises a phase delay module 3 and a reflection module 4; the phase delay module 3 is arranged on the optical path modulation side of the polarization beam splitting module 2; the reflection module 4 is arranged on one side of the phase delay module 3 far away from the polarization beam splitting module 2;
the polarized light b in the second state enters the phase delay module 3 to form circularly polarized light, and the circularly polarized light enters the reflection module 4, is reflected by the reflection module 4, and then passes through the phase delay module 3 again to form polarized light c in the first state.
In a preferred embodiment, the reflective module 4 employs a light reflective coating, a mirror, a dynamic zoom lens, or the like. The light reflection coating can be a metal or dielectric reflection film.
In a preferred embodiment, the phase retardation module adopts 1/4 wave plate, liquid crystal wave plate or crystal wave plate.
As shown in fig. 2, in a preferred embodiment, each surface of the first optical path folding module 6 and the second optical path folding module 5 may be provided as a curved surface, thereby implementing an image magnifying function.
With continued reference to fig. 1, in a preferred embodiment, the surfaces of the first optical path folding module 6 and the second optical path folding module 5 are arranged to be planar.
When the surfaces of the first optical path folding module 6 and the second optical path folding module 5 are arranged to be flat, no image magnifying effect is provided, and therefore, the optical display system provided by the embodiment of the present application further includes a first optical magnifying module 8 and a second optical magnifying module 7; the first optical amplification module 8 is used for amplifying the image of the first state polarized light a modulated by the first optical path folding module 6 and then transmitting the first state polarized light a to the right eye, and the second optical amplification module 7 is used for amplifying the image of the first state polarized light c modulated by the second optical path folding module 5 and then transmitting the first state polarized light c to the left eye;
when the device is used, specifically, the first optical amplification module 8 is arranged at the light emitting side of the first optical path folding module 6, the polarized light a in the first state enters the first optical amplification module 8 after the optical path adjustment is carried out by the first optical path folding module 6, and under the action of the first optical amplification module 8, the amplified image light enters the right eye;
the second optical amplification module 7 is arranged on the light emitting side of the second optical path folding module 5, the polarized light c in the first state enters the second optical amplification module 7 after being subjected to optical path adjustment through the second optical path folding module 5, and under the action of the second optical amplification module 7, the amplified image light enters the left eye.
Preferably, the first-state polarized light a and the second-state polarized light b in this embodiment may be linearly polarized light or circularly polarized light in practical application.
Preferably, the internal light guide medium of the polarization splitting module 2 includes one or more of glass, polymer and air.
Preferably, the first optical path folding module 6 has at least one first reflection surface 6-1 for adjusting the propagation path of the first state polarized light a; the internal light guide medium of the first optical path folding module 6 includes one or more of glass, polymer and air.
Preferably, the second optical path folding module 5 has at least one second reflection surface 5-1 for adjusting the propagation path of the first state polarized light c; the internal light guide medium of the second optical path folding module 5 includes one or more combinations of glass, polymer and air.
In addition, the embodiment of the application also provides VR equipment which comprises the optical display system.
It should be noted that, the VR device according to the embodiment of the present application may be: the system comprises head-mounted virtual reality equipment, a head-mounted display, a virtual reality helmet, wireless control type data processing equipment, audio interactive information processing equipment and 5G glasses; hybrid virtual reality display devices and systems, audio interactive information processing systems, remote panoramic image omni-directional real-time transmission and display systems, virtual reality feature location systems, systems for augmented and virtual reality, three-dimensional virtual and augmented reality display systems, architectures and systems for outputting different wavelengths of light from a waveguide, facial model capture by wearable devices systems, wide field of view (FOV) imaging devices and systems with active foveal capability, devices and systems that integrate virtual reality scene parameters, and the like.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An optical display system, comprising: the device comprises a display image source, a polarization light splitting module, a light path modulation module, a first light path folding module and a second light path folding module;
a light splitting surface is arranged in the polarization light splitting module, the first opposite side of the polarization light splitting module is a first light emitting side and a second light emitting side respectively, and the second opposite side of the polarization light splitting module is a light incident side and a light path modulation side respectively;
the display image source is arranged on the light incidence side;
the optical path modulation module is arranged on the optical path modulation side;
the first light path folding module is arranged on a first light-emitting side of the polarization light splitting module, and the second light path folding module is arranged on a second light-emitting side of the polarization light splitting module;
after image light emitted by the display image source enters the polarization light splitting module, the image light is split into first state polarized light a and second state polarized light b in an orthogonal state through the light splitting surface, wherein the first state polarized light a is reflected by the light splitting surface and then enters the first light path folding module; the polarized light b in the second state enters the light path modulation module after being incident on the light splitting surface, the polarized light b in the second state is modulated into polarized light c in the first state by the light path modulation module, and the polarized light c in the first state is reflected by the light splitting surface and then is incident on the second light path folding module.
2. The optical display system of claim 1, wherein the optical path modulating module comprises a phase retarding module and a reflecting module;
the phase delay module is arranged on the optical path modulation side of the polarization beam splitting module;
the reflection module is arranged on one side of the phase delay module, which is far away from the polarization beam splitting module;
and the polarized light b in the second state enters the phase delay module to form circularly polarized light, and the circularly polarized light enters the reflection module, is reflected by the reflection module, and then passes through the phase delay module again to form polarized light c in the first state.
3. The optical display system of claim 2, wherein the reflective module employs a light reflective coating, a reflective film, a mirror, or a dynamic zoom lens.
4. The optical display system of claim 2, wherein the phase retardation module employs an 1/4 wave plate, a liquid crystal wave plate, or a crystal wave plate.
5. The optical display system according to claim 1, wherein the surfaces of the first and second optical path folding modules are provided as a plane or a curved surface.
6. The optical display system according to any one of claims 1 to 5, further comprising a first optical magnification module and a second optical magnification module;
the first optical amplification module is arranged on the light emitting side of the first optical path folding module, and the polarized light a in the first state enters the first optical amplification module after being subjected to optical path adjustment by the first optical path folding module;
the second optical amplification module is arranged on the light emitting side of the second light path folding module, and the polarized light c in the first state enters the second optical amplification module after being subjected to light path adjustment by the second light path folding module.
7. An optical display system as claimed in claim 1, characterized in that the first state polarized light a and the second state polarized light b are linearly polarized light or circularly polarized light.
8. The optical display system of claim 1, wherein the internal light guiding medium of the polarization splitting module, the first optical path folding module, and the second optical path folding module comprises one or more combinations of glass, polymer, and air.
9. The optical display system of claim 1, wherein the display image source employs a single screen micro led unpolarized light emitting display.
10. A VR device, comprising: an optical display system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022435136.9U CN212965637U (en) | 2020-10-28 | 2020-10-28 | Optical display system and VR equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022435136.9U CN212965637U (en) | 2020-10-28 | 2020-10-28 | Optical display system and VR equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212965637U true CN212965637U (en) | 2021-04-13 |
Family
ID=75372817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022435136.9U Active CN212965637U (en) | 2020-10-28 | 2020-10-28 | Optical display system and VR equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212965637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130331A (en) * | 2020-10-28 | 2020-12-25 | 南京爱奇艺智能科技有限公司 | Optical display system and VR equipment |
-
2020
- 2020-10-28 CN CN202022435136.9U patent/CN212965637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130331A (en) * | 2020-10-28 | 2020-12-25 | 南京爱奇艺智能科技有限公司 | Optical display system and VR equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10908424B2 (en) | See-through type display apparatus | |
| KR20150021935A (en) | Source conditioning for imaging directional backlights | |
| WO2016142707A1 (en) | Holographically-projected virtual retinal display | |
| IL157838A (en) | High brightness optical device | |
| US11385502B1 (en) | Near-eye display apparatus | |
| JP2013137454A (en) | Image display device | |
| CN212965637U (en) | Optical display system and VR equipment | |
| TW202235929A (en) | Thin liquid crystal stack for polarization conversion | |
| CN107765435A (en) | Head-wearing display device | |
| CN107290865B (en) | 3D glasses and 3D display system | |
| WO2024022106A1 (en) | Optical module and head-mounted display device | |
| WO2024022092A1 (en) | Optical module and head-mounted display device | |
| US11546495B2 (en) | Camera module with a reflector mounted in a display device | |
| CN112130331A (en) | Optical display system and VR equipment | |
| KR20190110495A (en) | Wearable electronic device on head | |
| US9392266B2 (en) | Three-dimensional display device | |
| US10368060B2 (en) | Head mounted display | |
| CN115145027B (en) | Display assembly and head-mounted display device | |
| CN213023784U (en) | Bifocal and multifocal flat display system and VR or AR equipment using same | |
| CN113126299B (en) | Projection ray apparatus and head-mounted smart machine | |
| US11156837B2 (en) | Electronic device having a display module | |
| CN109031655B (en) | Lens unit and display device | |
| US20210364797A1 (en) | Optical device displaying image in short-distance | |
| CN114077051A (en) | Near-to-eye display device | |
| CN114488538B (en) | AR ray apparatus and wear display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 1103, building C, Xingzhi science and Technology Park, Nanjing Economic and Technological Development Zone, Nanjing, Jiangsu Province 210038 Patentee after: Nanjing Qiyuan Technology Co.,Ltd. Address before: Room 1103, building C, Xingzhi science and Technology Park, Nanjing Economic and Technological Development Zone, Nanjing, Jiangsu Province 210038 Patentee before: Nanjing iqiyi Intelligent Technology Co.,Ltd. |