CN212111980U - Near-to-eye display system with manually adjustable transparency and near-to-eye display equipment - Google Patents
Near-to-eye display system with manually adjustable transparency and near-to-eye display equipment Download PDFInfo
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- CN212111980U CN212111980U CN202020046386.0U CN202020046386U CN212111980U CN 212111980 U CN212111980 U CN 212111980U CN 202020046386 U CN202020046386 U CN 202020046386U CN 212111980 U CN212111980 U CN 212111980U
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Abstract
The utility model relates to a near-to-eye display technology field, in particular to but near-to-eye display system and near-to-eye display device of transparency manual regulation, near-to-eye display system includes: a micro display screen displaying an image; a waveguide system including a waveguide sheet that renders the natural light for viewing and renders an image displayed from the micro display screen on the natural light into a human eye; and the transparency adjusting system is arranged above the waveguide system and darkens or prevents the natural light appearing part of the waveguide sheet from being seen. The near-to-eye display system can manually adjust the transparency, so that a user can normally use the near-to-eye display system under the action of outdoor strong light, the application range of the scene of the display device is expanded, an Augmented Reality (AR) mode is converted into a Virtual Reality (VR) mode, and the AR and VR modes can be instantly converted.
Description
Technical Field
The utility model relates to a near-to-eye display technology field, in particular to but near-to-eye display system and equipment and near-to-eye display device of transparency manual regulation.
Background
Augmented reality is a technology for fusing virtual information and a real world, wherein a near-eye display device is a key link in the augmented reality technology. The near-eye display device can enable a user to see a real world and simultaneously see a virtual image constructed by a computer, the brightness of the virtual image seen by human eyes is limited due to the light source brightness of the micro display screen image, when the user uses the near-eye display device outdoors, the contrast of the virtual image is reduced due to the fact that an external light source is too strong, and therefore the user experience is influenced due to the fact that the virtual image superimposed on the real world is difficult to see clearly. The current common mode is to add a filter in front of the near-eye display device to reduce the light inlet amount of an external light source, and the scheme has obvious defects that the transparency is not adjustable, the intensity change of the external light cannot be correspondingly adjusted, the applicable scene range is limited, the filter needs to be taken down when the near-eye display device is used indoors with insufficient light, and the operation is complicated.
Patent US20190324274a1 proposes an adjustable transparency head-mounted display in which an ultraviolet light source and a photochromic layer are provided, the emission of which can be controlled to adjust the transparency of the photochromic layer, thereby improving the contrast of the virtual image. However, this patent is too complicated, and not only need to add the ultraviolet light source, still need to add the ultraviolet absorption layer and prevent that ultraviolet ray from getting into user's eyes, still need design extra optical device in addition, add heating element, obviously promoted display device's cost, volume and consumption.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defects of the prior art, the utility model provides a but near-to-eye display system and equipment and near-to-eye display device that transparency manually adjusted to solve the problem that proposes among the above-mentioned background art.
The utility model provides a technical scheme that problem among the prior art adopted does: a near-eye display system with manually adjustable transparency, the near-eye display system comprising:
a micro display screen displaying an image;
a waveguide system including a waveguide sheet that renders the natural light for viewing and renders an image displayed from the micro display screen on the natural light into a human eye;
and the transparency adjusting system is arranged above the waveguide system and darkens or prevents the natural light appearing part of the waveguide sheet from being seen.
As the utility model discloses a preferred scheme, little display screen, waveguide system locate on the wear-type bearing structure, transparency governing system locates on the wear-type bearing structure and be located waveguide system's top.
As a preferred aspect of the present invention, the transparency adjustment system is configured to receive natural light, and includes a first state in which the transparency adjustment system guides the natural light to the waveguide system and a second state in which the transparency adjustment system prevents the natural light from reaching the inside of the waveguide system.
As the preferred embodiment of the present invention, the transparency adjustment system includes two first polarizers and two second polarizers placed in parallel, the first polarizers and the second polarizers are configured to receive natural light and convert the natural light into polarized light, and the first polarizers and the second polarizers can rotate relatively along their respective central axes to adjust the polarization angle of the natural light in the transparency adjustment system and guide the adjusted natural light into the waveguide system.
As the preferred embodiment of the present invention, the head-mounted supporting structure includes a magnetic attraction structure disposed on the structure, the transparency adjusting system is disposed on the head-mounted supporting structure and located above the waveguide system.
As the preferred scheme of the utility model, transparency governing system integral type sets up on the wear-type bearing structure.
As the preferred scheme of the utility model, transparency governing system passes through the movable setting of clip formula on the wear-type bearing structure.
As a preferable embodiment of the present invention, the waveguide sheet may adopt an array waveguide, an embossed grating waveguide, a hologram grating waveguide, or the like.
A near-eye display apparatus provided with the near-eye display system of any one of the above.
Compared with the prior art, the utility model provides an utilize electrochromic material to adjust near-to-eye display system and equipment of transparency, this near-to-eye display system has following several technological effects:
1. the transparency of the near-eye display system can be adjusted, when external light is too strong, the transparency of the near-eye display system can be reduced through the transparency adjusting system which can be manually adjusted, so that a user can normally use the near-eye display system under the action of outdoor strong light, and the scene application range of the near-eye display device is expanded.
2. When the transparency of the near-eye display system is converted from the highest to the lowest, the conversion from an Augmented Reality (AR) mode to a Virtual Reality (VR) mode is equivalent, and the instant conversion of the AR and VR modes can be realized.
Drawings
Fig. 1 is a schematic diagram of a near-to-eye display system and apparatus with manually adjustable transparency according to the present invention;
fig. 2 is a block diagram of a near-to-eye display system and apparatus with manually adjustable transparency according to the present invention;
fig. 3 is a structural diagram of a transparency adjustment system in a near-to-eye display system and apparatus with manually adjustable transparency according to the present invention.
Reference numbers in the figures: 10. a micro display screen; 20. a lens group; 30. a waveguide sheet; 40. a transparency adjustment system; 50. an eye; 60. natural light; 70. an image; 80. a spectacle frame; 90. a frame is magnetically attracted; 401. a first polarizer; 402. a second polarizer.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the near-eye display system includes a microdisplay 10, where the microdisplay 10 may be used to display an image 70 for a user of the near-eye display system. The microdisplay 10 may be a transparent microdisplay 10 so that a user can view real world objects through the microdisplay 10 while computer-generated content is overlaid on the real world objects by presenting a computer-generated image 70 on the display. The micro-display 10 may be formed from a transparent pixel array (e.g., a transparent organic light emitting diode display panel) or may be formed from a display device that provides an image 70 to a user through a beam splitter, holographic coupler, or other optical coupler (e.g., a display device such as liquid crystal on a silicon display).
The near-eye display system includes a waveguide system by which the image 70 created by the microdisplay 10 is reflected into the user's eye 50. The waveguide system includes a waveguide sheet 30 for presenting the natural light 60 to be viewed and presenting the image 70 displayed on the micro display screen 10 on the natural light 60 to enter human eyes, in this embodiment, the waveguide sheet 30 is an array waveguide, besides, the waveguide sheet 30 may be an embossed grating waveguide, a holographic grating waveguide, and the like.
If desired, a lens assembly 20 may be disposed between the microdisplay 10 and the waveguide system, and an image 70 created by the microdisplay 10 is adjusted by the lens assembly 20 and reflected by the waveguide system into the user's eye 50.
As shown in fig. 2: the waveguide system is provided on a head-mounted support structure, the transparency-adjusting system 40 is provided on and above the head-mounted support structure, the transparency-adjusting system 40 and the waveguide system can be placed in front of the user's eye 50 and transparent, and allow the user to view real-world objects through the waveguide sheet 30 and the transparency-adjusting system 40. Adjustment of the transparency of the near-eye display system may be accomplished by manually adjusting the transparency adjustment system 40. Specifically, in the present embodiment, the head-mounted supporting structure adopts an eyeglass frame 80, the micro display screen 10, the waveguide system and the transparency adjusting system 40 are all disposed on the eyeglass frame 80, further, the waveguide system is disposed on two hollow positions on the eyeglass frame 80 that are seen by human eyes, the micro display screen 10 is disposed in the eyeglass frame 80 and is located at a position where the waveguide system can present the image 70 displayed by the micro display screen 10 on human eyes, in addition, a magnetic frame 90 is disposed on the position of the eyeglass frame 80 at the nose bridge, and the transparency adjusting system 40 is detachably mounted on the eyeglass frame 80 through the magnetic frame 90.
Of course, the connection manner of the transparency adjustment system 40 and the glasses frame 80 includes, in addition to the embodiment, that the transparency adjustment system 40 is integrally disposed with the glasses frame 80, or the transparency adjustment system 40 is movably disposed on the glasses frame 80 through a conventional clip type.
As shown in fig. 3: transparency-adjusting system 40 is configured to receive natural light 60, and transparency-adjusting system 40 includes a first state in which transparency-adjusting system 40 directs natural light 60 toward the waveguide system and a second state in which transparency-adjusting system 40 prevents natural light 60 from reaching the waveguide system, and in which transparency-adjusting system 40 may have a transmittance of 100% or near 100% (e.g., greater than 99%, greater than 95%, etc.). In the opaque state, the transmission is 0% or close to 0% (e.g., less than 1%, less than 5%, etc.). Each pixel of the transparency adjustment system 40 may also selectively produce an intermediate level of light transmission (e.g., transmission values between 0% and 100%).
Specifically, the transparency adjustment system 40 includes two first polarizers 401 and two second polarizers 402 disposed in parallel, where the first polarizers 401 and the second polarizers 402 are configured to receive the natural light 60 and convert the natural light 60 into polarized light, and the first polarizers 401 and the second polarizers 402 can relatively rotate along respective central axes to adjust the polarization angle of the natural light 60 in the transparency adjustment system 40 and guide the adjusted natural light 60 into the waveguide system. In this embodiment, when the included angle between the optical axes of the first polarizer 401 and the second polarizer 402 is 0 °, the natural light 60 can pass through the transparency adjustment system 40, so as to realize the superposition of the virtual image generated by the micro display 10 and the real world image 70; if the included angle of the optical axes between the first polarizer 401 and the second polarizer 402 is 90 °, the natural light 60 cannot enter the waveguide system through the transparency adjusting system 40, and at this time, the user can only see the virtual image 70 generated by the micro display screen 10, and in addition, the transparency of the near-to-eye display system can be adjusted by adjusting the included angle of the optical axes between the first polarizer 401 and the second polarizer 402 to 0 ° to 90 °.
The natural light 60 sequentially passes through the first polarizer 401, the second polarizer 402, and the waveguide sheet 30 in the transparency adjustment system 40 to enter the human eye. During operation, light from the microdisplay 10 may be directed at the waveguide sheet 30, the waveguide sheet 30 may direct the light toward the user's eye 50, and natural light 60 from the real world may also pass through the color changing layer and the waveguide sheet 30 to the user's eye 50. In this way, the user can simultaneously see the real-world content and the overlay image 70 (e.g., the computer-generated image 70), thereby enabling the overlay of the virtual image with the real-world environment.
A near-eye display system deployed at a near-eye display device may be used to provide computer-generated content overlaid on top of real-world content to a user. The real world content may be viewed directly by a user (e.g., by viewing real world objects through a transparent display panel, or by a waveguide system in a transparent display system that combines light from real world objects with light from a display panel). Configurations may also be used in which an image 70 of a real-world object is captured by a forward-facing camera and displayed to the user on a display.
The near-eye display system may be used for a near-eye display device. These devices may include portable consumer electronic devices (e.g., portable electronic devices such as mobile phones, tablets, glasses, other wearable devices), overhead displays in cockpit, vehicles, etc., display-based devices (projectors, televisions, etc.). Devices such as these may include transparent displays and other optical components. Device configurations in which virtual reality and/or augmented reality content is provided to a user having a head-mounted display are described herein as examples. However, this is merely exemplary. Any suitable device may be used to provide virtual reality and/or augmented reality content to a user).
Compared with the prior art, the utility model discloses following technological effect has:
the utility model discloses in but near-to-eye display system and equipment of transparency manual regulation, this near-to-eye display system have following technological effect, and near-to-eye display system's transparency is adjustable, and when external light was too strong, accessible transparency governing system reduced near-to-eye display device's transparency and made the user also can normal use, extension display device's scene application scope under outdoor highlight effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A near-eye display system having manually adjustable transparency, the near-eye display system comprising:
a micro display screen displaying an image;
a waveguide system including a waveguide sheet that renders natural light for viewing and renders an image displayed from the micro display screen on the natural light into a human eye;
the transparency adjusting system is arranged above the waveguide system, and can manually adjust the transparency so that the natural light partially penetrates through the waveguide system or the natural light cannot penetrate through the waveguide system;
the transparency adjusting system comprises a first polaroid and a second polaroid which are arranged in parallel, the first polaroid and the second polaroid are configured to receive natural light and convert the natural light into polarized light, and the first polaroid and the second polaroid can relatively rotate along respective central axes to adjust the polarization angle of the natural light in the transparency adjusting system and guide the adjusted natural light into the waveguide system.
2. A near-to-eye display system with manually adjustable transparency according to claim 1, wherein: the micro display screen and the waveguide system are arranged on the head-mounted supporting structure, and the transparency adjusting system is arranged on the head-mounted supporting structure and positioned above the waveguide system.
3. A near-to-eye display system with manually adjustable transparency according to claim 2, wherein: the transparency adjustment system is configured to receive natural light, the transparency adjustment system comprising a first state in which the transparency adjustment system directs natural light towards the waveguide system and a second state in which the transparency adjustment system prevents natural light from reaching into the waveguide system.
4. A near-to-eye display system with manually adjustable transparency according to claim 2, wherein: the head-wearing support structure comprises a magnetic attraction structure arranged on the structure, and the transparency adjusting system is detachably arranged on the head-wearing support structure and positioned above the waveguide system through the magnetic attraction structure.
5. A near-to-eye display system with manually adjustable transparency according to claim 2, wherein: the transparency adjustment system is integrally disposed on the head-mounted support structure.
6. A near-to-eye display system with manually adjustable transparency according to claim 2, wherein: the transparency adjusting system is movably arranged on the head-wearing type supporting structure through a clamping piece.
7. A near-to-eye display system with manually adjustable transparency according to claim 1, wherein: the waveguide sheet can adopt array waveguide, relief grating waveguide, holographic grating waveguide and the like.
8. A near-eye display device, characterized by: the near-eye display device is provided with the near-eye display system according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046386.0U CN212111980U (en) | 2020-01-09 | 2020-01-09 | Near-to-eye display system with manually adjustable transparency and near-to-eye display equipment |
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| CN202020046386.0U CN212111980U (en) | 2020-01-09 | 2020-01-09 | Near-to-eye display system with manually adjustable transparency and near-to-eye display equipment |
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| CN212111980U true CN212111980U (en) | 2020-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123519A (en) * | 2020-01-09 | 2020-05-08 | 深圳珑璟光电技术有限公司 | Near-to-eye display system and device with transparency capable of being manually adjusted |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123519A (en) * | 2020-01-09 | 2020-05-08 | 深圳珑璟光电技术有限公司 | Near-to-eye display system and device with transparency capable of being manually adjusted |
| CN111123519B (en) * | 2020-01-09 | 2024-03-26 | 深圳珑璟光电技术有限公司 | Near-to-eye display system and device with manually adjustable transparency |
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