CN105093535B - A kind of head-mounted display apparatus - Google Patents
A kind of head-mounted display apparatus Download PDFInfo
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- CN105093535B CN105093535B CN201510552666.2A CN201510552666A CN105093535B CN 105093535 B CN105093535 B CN 105093535B CN 201510552666 A CN201510552666 A CN 201510552666A CN 105093535 B CN105093535 B CN 105093535B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The embodiment of the invention discloses a kind of head-mounted display apparatus, comprising: image source；Positioned at the optical waveguide of image source light transmission direction；Optical texture positioned at optical waveguide emergent ray direction；Wherein, the optical texture includes: to change optical waveguide emergent ray direction, increase the first state of the emergent ray angle of emergence and does not change second state in optical waveguide emergent ray direction, to when the head-mounted display apparatus is applied to enhancing display display, it controls the optical texture and is in the second state, so that the optical texture transmits its light of directive, to increase the transparency of the head-mounted display apparatus, meet high grade of transparency demand when augmented reality display, when the head-mounted display apparatus is applied to enhancing virtually display, it controls the optical texture and is in first state, so that the optical texture reflects its light of directive, increase the visual field of the head-mounted display apparatus, meet big visual field demand when virtual display.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of head-mounted display apparatus.
Background technique
With the development of science and technology, head-mounted display apparatus using more and more extensive.It is filled when the wear-type is shown
Set when being applied to augmented reality display, the head-mounted display apparatus needs transparency with higher, and not to the external world into
The light for entering human eye generates deviation；When the head-mounted display apparatus is applied to virtual display, the head-mounted display apparatus
It needs with larger field, so that user has strong feeling of immersion.But head-mounted display apparatus is difficult to simultaneously at present
Meets the needs of high grade of transparency and big visual field.
Summary of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of head-mounted display apparatus, to meet height simultaneously
The demand of transparency and big visual field.
To solve the above problems, the embodiment of the invention provides following technical solutions:
A kind of head-mounted display apparatus, comprising: image source；Positioned at the optical waveguide of described image source light transmission direction；Position
Optical texture in optical waveguide emergent ray direction；Wherein, the optical texture includes: to change the optical waveguide emergent light
Line direction increases the first state of the emergent ray angle of emergence and does not change second shape in optical waveguide emergent ray direction
State.
Preferably, the optical texture includes at least two optical units for being located at optical waveguide emergent ray direction,
Wherein, under the first state of the optical texture, the first optical unit is for the emergent ray of the optical waveguide
It is poly-, it is formed and assembles light, the second optical unit forms parallel rays for being diffused to the convergence light.
Preferably, the optical unit includes at least an optical lens, and the optical lens is in the energized state to penetrating
It is reflected to the light of the optical lens, under non-power status, the light of the optical lens described in directive is transmitted.
Preferably, the optical lens includes: the first transparent substrate and the second transparent substrate being oppositely arranged, and is located at
Liquid crystal layer between first transparent substrate and transparent two substrate.
Preferably, the distance between first optical unit and second optical unit are first optical unit
Focal length and second optical unit the sum of focal length, and the focal length of first optical unit be greater than the second optics list
The focal length of member.
Preferably, the display device further include: deviate from the photomask of described image source side positioned at the optical waveguide, use
In when the optical texture is in first state, the light is incident to from the optical waveguide away from the optical texture side
The light of waveguide is blocked.
Preferably, the photomask is Electrocontrolled color change film, and the Electrocontrolled color change film is nontransparent state in the energized state,
It is transparent state under non-power status.
Preferably, the display device further include:
Controller, the controller be used to detect the display pattern of the head-mounted display apparatus, and based on detecting
Display pattern controls the optical texture and is in first state or the second state.
Preferably, the controller is also used to control described automatically controlled when the control optical texture is in first state
Color-changing membrane is in non-transparent state, when the control optical texture is in the second state, controls the Electrocontrolled color change film and is in
Pellucidity.
Preferably, the display device further include: positioned at described image source to the collimating optics of the optical waveguide optical road
System.
Compared with prior art, above-mentioned technical proposal has the advantage that
Head-mounted display apparatus provided by the embodiment of the present invention, comprising: image source；It is transmitted positioned at described image source light
The optical waveguide in direction；Optical texture positioned at optical waveguide emergent ray direction；Wherein, the optical texture includes: to change
Optical waveguide emergent ray direction increases the first state of the emergent ray angle of emergence and does not change the optical waveguide outgoing
Second state of radiation direction, to control the optics when the head-mounted display apparatus is applied to enhancing display display
Structure is in the second state, so that the optical texture transmits its light of directive, does not change the optical waveguide outgoing
Radiation direction meets high grade of transparency demand when augmented reality display to increase the transparency of the head-mounted display apparatus, when
When the head-mounted display apparatus is applied to enhance virtual display, controls the optical texture and be in first state, so that described
Optical texture reflects its light of directive, changes optical waveguide emergent ray direction, increases the emergent ray
The angle of emergence, so that increase the visual field of the head-mounted display apparatus when head-mounted display apparatus is applied to virtual display,
Meet big visual field demand when virtual display.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of head-mounted display apparatus provided by one embodiment of the invention；
Fig. 2 is the structural schematic diagram of optical texture in head-mounted display apparatus provided by one embodiment of the invention；
Fig. 3 is the structural schematic diagram of optical lens in optical texture provided by one embodiment of the invention；
Fig. 4 is the structural schematic diagram of head-mounted display apparatus provided by another embodiment of the present invention；
Fig. 5 is the structural schematic diagram of head-mounted display apparatus provided by another embodiment of the invention.
Specific embodiment
Just as described in the background section, head-mounted display apparatus is difficult to meet simultaneously the high grade of transparency and big visual field at present
Demand.
In view of this, the embodiment of the invention provides a kind of head-mounted display apparatus, comprising: image source；Positioned at the figure
The optical waveguide of image source light transmission direction；Optical texture positioned at optical waveguide emergent ray direction；Wherein, the optics knot
Structure includes: to change optical waveguide emergent ray direction, increases the first state of the emergent ray angle of emergence and does not change institute
State second state in optical waveguide emergent ray direction.
When the head-mounted display apparatus provided by the embodiment of the present invention is applied to enhancing display display, control can be passed through
It makes the optical texture and is in the second state, so that the optical texture transmits its light of directive, do not change described
Optical waveguide emergent ray direction, to increase the transparency of the head-mounted display apparatus, height when meeting augmented reality display is saturating
Lightness demand when being applied to enhance virtual display, can be in first state by controlling the optical texture, so that the light
Learning structure, its light reflects to directive, changes optical waveguide emergent ray direction, increases going out for the emergent ray
Firing angle, so that increase the visual field of the head-mounted display apparatus when head-mounted display apparatus is applied to virtual display, it is full
Big visual field demand when foot is virtually shown.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in Figure 1, the embodiment of the invention provides a kind of head-mounted display apparatus, comprising: image source 10；Positioned at described
The optical waveguide 20 of 10 light transmission direction of image source；Optical texture 30 positioned at the 20 emergent ray direction of optical waveguide；Wherein,
The optical texture 30 includes: to change 20 emergent ray of optical waveguide, increases the first state of the emergent ray angle of emergence
Second state in the 20 emergent ray direction of optical waveguide is not changed.
Specifically, in embodiments of the present invention, when the head-mounted display apparatus is applied to reality display, described image
The light directive optical waveguide 20 that source 10 emits directly successively takes in human eye by the optical waveguide 20 and the optical texture 30
40, in the present embodiment, the optical texture 30 is equivalent to parallel-plate, and the light that the optical waveguide 20 projects is directed through described
Optical texture 30 injects human eye 40, does not change transmission direction；It is described when the head-mounted display apparatus is applied to virtual display
Optical waveguide 20 described in the light directive that image source 10 issues through optical texture 30 described in the optical waveguide 20 transmission directive, and passes through
The optical texture 30 injects human eye 40 after reflecting, to change the transmission direction of 20 emergent ray of optical waveguide, increases institute
The emergent ray angle of emergence is stated, so that the corresponding angle b of the visual field of 40 exit facet of the optical texture is greater than the optical texture 40
The corresponding angle a of the visual field of the plane of incidence, and then increase the visual field of the head-mounted display apparatus.
It should be noted that in embodiments of the present invention, the optical waveguide 20 is preferably with the optical texture 30
Transparent material, transparency when guaranteeing that the head-mounted display apparatus is applied to reality display, but the present invention does not do this
It limits, specifically depending on the transparency demand when head-mounted display apparatus is applied to reality display.
Based on any of the above embodiments, in one embodiment of the invention, as shown in Fig. 2, the optics knot
Structure 30 includes at least two optical units for being located at the 20 emergent ray direction of optical waveguide, wherein in the optical texture 30
First state under, the first optical unit 31 is formed and assembles light for assembling to the emergent ray of the optical waveguide 20,
Second optical unit 32 forms parallel rays, directive human eye 40 for being diffused to the convergence light.
On the basis of the above embodiments, in a preferred embodiment of the invention, first optical unit 31 with
The distance between described second optical unit 32 is the focal length and second optical unit 32 of first optical unit 31
The sum of focal length, and the focal length of first optical unit 31 is greater than the focal length of second optical unit 32, so that described the
Convergence of rays point A between one optical unit 31 and second optical unit 32 be located at first optical unit 31 with it is described
Position between second optical unit 32 on line close to second optical unit 32, so that second optical unit
The angle between light and 32 normal of the second optical unit that 32 exit facets project is greater than first optical unit 31 and enters
The angle between the light of face incidence and 31 normal of the first optical unit is penetrated, the view of the head-mounted display apparatus is increased
?.
It should be noted that in embodiments of the present invention, first optical unit 31 and second optical unit 32
Between specific position of the convergence of rays point A between first optical unit 31 and second optical unit 32 on line
It sets depending on the specific visual field demand of the head-mounted display apparatus, countermeasure of the present invention and without limitation.
It should also be noted that, in other embodiments of the present invention, the optical texture 30 can also include two or more
Optical unit, the present invention to this and without limitation, specifically depends on the circumstances.In embodiments of the present invention, when the optics knot
When structure 30 includes more than two optical units, the optical texture 30 includes even number optical unit, and two neighboring optics
The optical unit of the convergent point of light close separate optical waveguide 20 on line between two neighboring optical unit between unit
Position.
Based on any of the above embodiments, in one embodiment of the invention, optical unit includes at least one
Optical lens, in one embodiment of the present embodiment, the optical lens is in energized state optical lens described in directive
Light is reflected, and the light of optical texture 30 described in directive transmits under non-power status；In the another of the present embodiment
In one embodiment, the light of the optical lens optical lens described in directive in the energized state is transmitted, and is being powered
The light of the optical lens described in directive reflects under state, and the present invention to this and without limitation, specifically regards the optics knot
Depending on the performance of fruit.
Based on any of the above embodiments, in one embodiment of the invention, as shown in figure 3, the optical lens
Mirror includes: the first transparent substrate 311 and the second transparent substrate 312 being oppositely arranged, and is located at first transparent substrate 311
With the liquid crystal layer 313 between second transparent substrate 312.It in embodiments of the present invention, can be by the liquid crystal layer 313
The arragement direction of liquid crystal molecule controls the optical property of the optical lens.Specifically, the both ends to the liquid crystal layer 313 apply
Voltage, by the size for changing 313 voltage difference of the two ends of liquid crystal layer, thus it is possible to vary the arrangement of liquid crystal molecule in the liquid crystal layer
Interception of rays is injected so as to change the optical lens to its plane of incidence in direction, and the present invention is to the liquid crystal layer
The voltage difference at 313 both ends and without limitation, specifically depends on the circumstances.
It should be noted that in the above-described embodiments, the liquid crystal molecule in the liquid crystal layer 313 can be positivity liquid crystal point
Son, or negative liquid crystal molecule, the present invention to this and without limitation, specifically depend on the circumstances.
Based on any of the above embodiments, it is shown to increase when the head-mounted display apparatus is applied to virtual display
Show the contrast of picture, as shown in figure 4, in a preferred embodiment of the invention, the display device further include: be located at institute
The photomask 50 that optical waveguide 20 deviates from 10 side of described image source is stated, is used for when the optical texture 30 is in first state,
It is blocked to from the optical waveguide 20 away from the light that 30 side of optical texture is incident to the optical waveguide 20, to weaken
The display device of ambient shows the influence of picture brightness, improves the display effect that the display device shows picture.
On the basis of the above embodiments, in one embodiment of the invention, the photomask 50 is Electrocontrolled color change film,
The Electrocontrolled color change film is nontransparent state in the energized state, deviates from 30 side of optical texture to the optical waveguide 20 is located at
The light of optical waveguide 20 described in directive is blocked, and is transparent state under non-power status, is deviated to the optical waveguide 20 is located at
The light of optical waveguide 20 described in the 30 side directive of optical texture is transmitted.In other embodiments of the invention, described
Photomask 50 can with the photomask of other performances, the present invention to this and without limitation, as long as guaranteeing the photomask 50 in institute
State head-mounted display apparatus for virtually show when, to being located at the optical waveguide 20 away from the 30 side directive institute of optical texture
The light for stating optical waveguide 20 is blocked, when the head-mounted display apparatus is for reality display, to positioned at the optical waveguide
20 light for deviating from optical waveguide 20 described in the 30 side directive of optical texture are transmitted.
Based on any of the above embodiments, in one embodiment of the invention, the display device further include: control
Device (not shown) processed, the controller are used to detect the display pattern of the head-mounted display apparatus, and are based on detecting
Display pattern, control the optical texture 30 and be in first state or the second state.Specifically, when the controller detects
When the head-mounted display apparatus is in real display pattern, controls the optical texture 30 and be in the second state, when the control
When device processed detects the head-mounted display apparatus for virtual display, controls the optical texture 30 and be in first state.
It should be noted that when the display device includes Electrocontrolled color change film, in a preferred embodiment of the present invention
In, the controller is also used to control the Electrocontrolled color change film when the control optical texture 30 is in first state and be in
Nontransparent state controls the Electrocontrolled color change film and is in pellucidity, in this hair when the optical texture 30 is in the second state
In bright other embodiments, the optical texture 30 can also be controlled from the Electrocontrolled color change film by different controllers
System, the present invention to this and without limitation, specifically depend on the circumstances.
Based on any of the above embodiments, in one embodiment of the invention, as shown in figure 5, the display fills
It sets further include: the collimating optical system 60 on described image source 10 to 20 optical path of optical waveguide, by described image source
The light of same picture point transmitting is converted into optical waveguide 20 described in directional light directive in 10.
In conclusion head-mounted display apparatus provided by the embodiment of the present invention, in the head-mounted display apparatus application
When enhancing display display, it can be in the second state by controlling the optical texture 30, so that the optical texture 30 is right
Its light of directive is transmitted, and does not change the 20 emergent ray direction of optical waveguide, to increase the head-mounted display apparatus
Transparency, meet high grade of transparency demand when augmented reality display, when being applied to the virtual display of enhancing, control can be passed through
The optical texture 30 is in first state, so that the optical texture 30 reflects its light of directive, described in change
20 emergent ray direction of optical waveguide, increases the angle of emergence of the emergent ray, so that the head-mounted display apparatus is applied to
When virtual display, increase the visual field of the head-mounted display apparatus, meets big visual field demand when virtual display.
Various pieces are described in a progressive manner in this specification, and what each some importance illustrated is and other parts
Difference, same and similar part may refer to each other between various pieces.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest scope.
Claims (9)
1. a kind of head-mounted display apparatus characterized by comprising image source；Positioned at described image source light transmission direction
Optical waveguide；Optical texture positioned at optical waveguide emergent ray direction；Wherein, the optical texture includes: to change the light
Waveguide emergent ray direction increases the first state of the emergent ray angle of emergence and does not change the optical waveguide emergent ray side
To the second state；
The optical texture includes at least two optical units for being located at optical waveguide emergent ray direction, wherein described
Under the first state of optical texture, the first optical unit is formed and is assembled for assembling to the emergent ray of the optical waveguide
Light, the second optical unit form parallel rays for being diffused to the convergence light.
2. display device according to claim 1, which is characterized in that the optical unit includes at least an optical lens
The light of mirror, the optical lens optical lens described in directive in the energized state reflects, right under non-power status
The light of optical lens described in directive is transmitted.
3. display device according to claim 2, which is characterized in that the optical lens includes: first be oppositely arranged
Transparent substrate and the second transparent substrate, and the liquid crystal layer between first transparent substrate and transparent two substrate.
4. display device according to claim 1, which is characterized in that first optical unit and the second optics list
The distance between member is the focal length of first optical unit and the sum of the focal length of second optical unit, and first light
The focal length for learning unit is greater than the focal length of second optical unit.
5. display device according to claim 1, which is characterized in that the display device further include: be located at the light wave
The photomask away from described image source side is led, for when the optical texture is in first state, to from the optical waveguide
The light for being incident to the optical waveguide away from the optical texture side is blocked.
6. display device according to claim 5, which is characterized in that the photomask is Electrocontrolled color change film, described automatically controlled
Color-changing membrane is nontransparent state in the energized state, is transparent state under non-power status.
7. display device according to claim 1-6, which is characterized in that the display device further include:
Controller, the controller are used to detect the display pattern of the head-mounted display apparatus, and based on the display detected
Mode controls the optical texture and is in first state or the second state.
8. display device according to claim 7, which is characterized in that the controller is also used to controlling the optics knot
It when structure is in first state, controls the Electrocontrolled color change film and is in non-transparent state, be in second controlling the optical texture
When state, controls the Electrocontrolled color change film and be in pellucidity.
9. display device according to claim 1, which is characterized in that the display device further include: be located at described image
The collimating optical system of source to the optical waveguide optical road.
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| CN201510552666.2A CN105093535B (en) | 2015-09-01 | 2015-09-01 | A kind of head-mounted display apparatus |
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| CN201510552666.2A CN105093535B (en) | 2015-09-01 | 2015-09-01 | A kind of head-mounted display apparatus |
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| CN105093535A CN105093535A (en) | 2015-11-25 |
| CN105093535B true CN105093535B (en) | 2018-12-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842907B (en) * | 2016-05-31 | 2022-07-01 | 京东方科技集团股份有限公司 | Display device and driving method thereof |
| CN106597672B (en) * | 2017-02-16 | 2020-06-16 | 上海鲲游光电科技有限公司 | Augmented reality display device based on waveguide |
| TWI677707B (en) * | 2017-03-13 | 2019-11-21 | 宏達國際電子股份有限公司 | Head mounted display device and image projection method |
| CN109116559B (en) * | 2017-06-26 | 2024-06-11 | 京东方科技集团股份有限公司 | Display system and image display method |
| CN110989833B (en) * | 2019-11-25 | 2021-10-22 | 联想(北京)有限公司 | Control method, AR device and computer readable storage medium |
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| WO2011051660A1 (en) * | 2009-10-27 | 2011-05-05 | Milan Momcilo Popovich | Compact holographic edge illuminated eyeglass display |
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| CN102445755A (en) * | 2010-10-08 | 2012-05-09 | 精工爱普生株式会社 | Virtual image display apparatus |
| CN202149976U (en) * | 2011-07-22 | 2012-02-22 | 上海丽恒光微电子科技有限公司 | Display device, projecting device, and near-to-eye display device |
| CN104025121A (en) * | 2011-08-23 | 2014-09-03 | 伊奎蒂公司 | Dynamic apertured waveguide for near-eye display |
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