CN206523704U - Narrow angle diffusion sheet new line display device - Google Patents
Narrow angle diffusion sheet new line display device Download PDFInfo
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- CN206523704U CN206523704U CN201720127884.6U CN201720127884U CN206523704U CN 206523704 U CN206523704 U CN 206523704U CN 201720127884 U CN201720127884 U CN 201720127884U CN 206523704 U CN206523704 U CN 206523704U
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 93
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- 239000011159 matrix material Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 14
- 230000003287 optical effect Effects 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000011514 reflex Effects 0.000 description 4
- 208000002173 dizziness Diseases 0.000 description 3
- 210000001508 eye Anatomy 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model discloses a kind of narrow angle diffusion sheet new line display device, comprising a projection module, narrow an angle diffusion sheet and a speculum, it utilizes the array of minute concave mirrors there is provided optimal narrow angle diffusion sheet, to optimize visual effect；Wherein, the projection module is located near the speculum, and the narrow angle diffusion sheet to overcome use limitation and the brightness problem of new line display device, and then lifts traffic safety towards the projection module and the speculum.
Description
Technical field
The utility model is related to a kind of narrow angle diffusion sheet new line display device, this espespecially a kind of lift for optimizing visual effect
Head display device, it utilizes the array of minute concave mirrors to constitute one close to preferable narrow angle diffusion sheet, shown with overcoming HUD to come back
The use limitation of equipment and brightness problem, to optimize visual effect, and then lift traffic safety.
Background technology
At present, the HUD technology used on automobile is a kind of optical system, is typically to be changed by a projector and one
As microscope group is into wherein the projector is made up of a signal optical source, a projection lens and other optical elements；The signal of the projector
Light source is made up of a LCD liquid crystal displays, or a projector with imaging screen or a diffusion sheet etc. a device, from signal optical source hair
Go out light, then projecting should change as mirror combiner on instrument desk or windshield by the projector, (special is semi-transparent
Bright concave mirror), then by this repeatedly as mirror shows that word or image overlap with outdoor scene at the moment, the HUD of this combination claims
For CHUD (combiner type HUD)；Another form of HUD, emits beam from signal optical source, is then thrown by the projector
The concave mirror below instrument desk is mapped to, then by image zoom and reflexes to windshield, then word is shown by windshield
Or image overlaps with outdoor scene at the moment, the HUD of this combination is referred to as WHUD (windshield type HUD)
Traditional WHUD (windshield type HUD) is limited by space, and general virtual image forming distance is usually not more than
Cross apart from the position of 2.5 meters of driver's eyes, but actual demand is less enough, so industry can just set up 7 meters with depot
Target；Volume shared by traditional WHUD is very big, has enough spaces below not all vehicle instrument desk, so
Oversize vehicle is only applicable at present, and the HUD that dilly is installed additional uses CHUD (combiner type HUD), it is empty
As image-forming range is even shorter.
However, to reach remote virtual image forming, theoretically concave mirror multiplication factor is increased it is achieved that but real
Beholder can be caused dizzy on border, therefore to avoid dizzy generation, if by concave mirror and the (diffusion of projector of real image screen
Piece or TFT) constitute object distance elongate, be also a solution, but the HUD of conventional monolithic because be limited to instrument desk lower section
Space so that elongate object distance and have difficulties on the implementation, and the real image screen of same size, when its elongation and concave mirror
After distance, virtual image distance can become remote, but virtual image size does not become big then, and relative visual identification will be with distance under equal proportion
Drop.
Therefore, real image screen (projector's diffusion sheet or TFT) is placed in the intersection of roof of the vehicle and windshield, will be anti-
Penetrate concave mirror to be placed in below instrument desk, be so that 3 times or so the object distances distance that can be obtained close to conventional monolithic WHUD (is incited somebody to action
Originally 18cm is turned into 50~70cm), and the volume ratio tradition HUD shared by below instrument desk is also small, so as to be applicable more
Multi-vehicle-type, but original visual recognition degree is maintained, at least need equal proportion to amplify real image screen, however, amplification TFT is part
Highly difficult thing, for fear of the demand of high brightness backlights, TFT needs a light cup behind, could provide enough brightness, so
If TFT is amplified to 5.4 cun from 1.8 cun, overall TFT volumes the TFT of one ultra-large type of ceiling generation will blame in front of driving
Thing, and in cost and aesthetically will not all be received.
As shown in figure 1, projector 1 (including DLP projector or laser projector) be required for using to an imaging cloth curtain or
One diffusion sheet is imaged as imaging plane, and using the projector of Rear projection is put at the back side of a diffusion sheet, meeting
Using to translucent penetration diffusion sheet；The principle of projector 1 is the mode using scanning by a picture, to being projected plane
Each point project different color and intensity light spots, these luminous points constitute a picture；Assuming that imaging plane is not cloth
Curtain or diffusion sheet, but the plane of reflection 21 of a specular reflective mirrors 2, because speculum incidence angle is equal to angle of reflection, so the throwing
The picture that shadow machine 1 projects the plane of reflection 21 of the specular reflective mirrors 2 only has the light of any to reflex to the eye of specific audience
In eyeball E, so no matter beholder can only see a spot light in which angle, a complete picture but can't see.
As shown in Fig. 2 in order to be able to see a complete picture, so the reflection that the projector 1 is projected when using is put down
Face, it is impossible to be mirror-reflection plane, it is necessary to be a cloudy surface plane 22, so projecting the cloudy surface plane 22 just can be the light of reflection
Line is broken up, and allows reflected light to be distributed to each reflection angle, and this cloudy surface plane 22 is just called diffusion sheet, and light is got to one and put down
Face, has some light to be absorbed, and remaining light is just reflected, if along with reflection light is diffused into each angle,
Each angle can watch whole picture, but the light quantity acquired by single angle will become very little, so that the projection
When machine 1 is played, the powder that can be generally reflected in more dim environment, relatively good projection screen containing increase can be reduced
The absorption of light, improves the intensity of reflected light, but cost can increase many, and effect is but very limited, and this mode simply subtracts in fact
Few absorbed ratio of light, but the loss to being distributed to produced by each angle, then can not remedy.
In order to solve the problems of above, industry constantly proposes various solution technical schemes, and related technology can join
Meal with wine TaiWan, China discloses numbering 201636680, TaiWan, China and discloses numbering 201624101, TaiWan, China letters patent number
I367405, TaiWan, China letters patent I449950, TaiWan, China letters patent I506299, TaiWan, China letters patent number
I479236, TaiWan, China letters patent I485432, TaiWan, China letters patent M455182, TaiWan, China letters patent number
Case before the patents such as M328014.
Before foregoing patent in case, the use function of current new line display device can be lifted mostly, but still suffer from
Some bottlenecks being not easily overcome, Li such as ︰
1. in foregoing published Patent Case, though some have applied to the technology of reflection mirror array, due to its projection
Between the gauged distance image that goes out and the range image of reality, still with the presence of visual drop problem, it is this it is visual fall
Poor phenomenon, for some drivers, it is easy to produce visual dizzy sense, thus influence whether the security of driving.
2. in known technology meets the tendency of, because the distance of light source projects needs longer space and distance, this limit
System is frequently not that can meet this requirement per a vehicle, causes to be forced to improve the efficiency of reflection with more expensive outfit
With brightness, such as using the projection module (or projector) of wide viewing angle, to overcome the use of HUD new line display devices to limit, this
The mode of kind is all simply wasted in the cost of increase equipment, and projection efficiency is also low, and this is that current new line display device generally faces
The problem of.
Utility model content
The problem of existing in view of above prior art, after inventor is after Improvement many times, completes finally
The utility model-narrow angle diffusion sheet new line display device, the i.e. goal of the invention of this case is to provide a kind of optimization visual effect
New line display device, it constitutes one close to preferable narrow angle diffusion sheet using minute concave mirrors array, allows the reflected light model of diffusion
Enclose concentration to be diffused on HUD concave mirror, the problem of use limitation and brightness to overcome HUD new line display devices, to optimize
Visual effect, and then lift traffic safety.
In order to reach foregoing invention purpose, the narrow angle diffusion sheet new line display device that the utility model is provided, comprising：
One projection module, it projects an image light source；
One narrow angle diffusion sheet, is the array of a minute concave mirrors, and the image light source invests the narrow angle diffusion sheet；
One speculum, the narrow angle diffusion sheet reflects the image light source to the speculum；
Wherein, the projection module is located at the speculum the same side, and the narrow angle diffusion sheet is towards the projection module and the reflection
Mirror.
The array of above-mentioned minute concave mirrors is into a length and width matrix arrangement.
Above-mentioned minute concave mirrors are pyramid type concave mirror always, and the projection module is located near the speculum.
Above-mentioned miniature female tab mirror is a spheroidal concave mirror, and the projection module is located near the speculum.
Above-mentioned minute concave mirrors are an arc-shaped concave mirror.
In the array of above-mentioned minute concave mirrors, all minute concave mirrors and the narrow angle diffusion sheet are into an oblique angle.
In the array of above-mentioned minute concave mirrors, the angle that all minute concave mirrors are had nothing in common with each other.
The profile of above-mentioned narrow angle diffusion sheet is a plane with least one turnover.
Above-mentioned speculum is a concave mirror.
Above-mentioned narrow angle diffusion sheet is a curved surface.
The utility model allows the anti-of diffusion mainly using the array of minute concave mirrors there is provided optimal narrow angle diffusion sheet
The concave mirror that optical range covers HUD is penetrated, unnecessary without doing waste use the projection module of wide viewing angle (or to project
Machine), to overcome the use of HUD new line display devices to limit, this preferably narrow angle diffusion sheet of the present utility model is a kind of profit
The reflective diffusion sheet constituted with minute concave mirrors array, the utility model can allow the DLP brightness for being imaged onto HUD concave mirrors
Decades of times is lifted, even up to hundred times, effectively to solve projector HUD brightness problem, to optimize visual effect, and then is lifted
Traffic safety.
Brief description of the drawings
Fig. 1 is that existing projection arrangement implements schematic diagram；
Fig. 2 is another implementation schematic diagram of existing projection arrangement；
Fig. 3 is first embodiment schematic diagram of the present utility model；
Fig. 4 is second embodiment schematic diagram of the present utility model；
Fig. 4-1 is second embodiment close-up schematic view of the present utility model；
Fig. 5 is intended to for 3rd embodiment example of the present utility model；
Fig. 5-1 is 3rd embodiment close-up schematic view of the present utility model；
Fig. 6 is intended to for fourth embodiment example of the present utility model；
Fig. 6-1 is fourth embodiment close-up schematic view of the present utility model；
Fig. 7 is intended to for the 5th embodiment example of the present utility model；
Fig. 8 is intended to for sixth embodiment example of the present utility model.
Description of reference numerals：1- projectors；2- specular reflective mirrors；The 21- planes of reflection；22- cloudy surface planes；E- eyes；3-
Projection module；The narrow angle diffusion sheets of 4-；The tapered concave mirror in 41- right angles；42- spheroidal concave mirrors；43- arc-shaped concave mirrors；44- is micro-
Type concave mirror；5- speculums；The 6- virtual images；61- arrows；62- words；D- reflected ranges；L- image light sources；θ-oblique angle.
Embodiment
The first embodiment of the narrow angle diffusion sheet new line display device of the utility model offer is provided, comprising：
One projection module 3, projects an image light source L, and the projection module 3 is a digital light processing devices (Digital
Light Processing, abbreviation：DLP) projector, is a kind of visualization module of use in projecting apparatus and back projection TV；
One narrow angle diffusion sheet 4, is the narrow angle diffusion sheet that the array of a minute concave mirrors is constituted, the image of the projection module 3
Light source L invests the narrow angle diffusion sheet 4；
One speculum 5, the narrow angle diffusion sheet 4 reflects the image light source L to the speculum 5, and the speculum 5 is a concave surface
Mirror；
Wherein, the projection module 3 is located at the same side of speculum 5, and the narrow angle diffusion sheet 4 is towards the projection module 3 with being somebody's turn to do
Speculum 5.
Narrow angle diffusion sheet 4 in the utility model reflects the image light source L of the projection module 3, just only projects this anti-
In the scope for penetrating mirror 5, can so obtain optimal projection efficiency, if because projected area is too big, project the speculum 5 it
Outer reflection light is all to waste；And the display device that typically comes back may be used under the big sun, thus it is bright required for it
Degree is high, and this brightness to the projection module 3 can be described as a major challenge, thus fully defeated using the institute of projection module 3
The light quantity gone out, to reduce waste, this is extremely important, and the key that reduce light waste is the design of the narrow angle diffusion sheet 4,
One preferable narrow angle diffusion sheet 4 preferably reaches 100% to light reflectance, and the image light source L of reflection again can be just
Cover the speculum 5 of the new line display device, but without departing from, therefore closer to preferable narrow angle diffusion sheet 4, it is produced
Benefit it is higher.
Above-mentioned narrow angle diffusion sheet 4 is the array of minute concave mirrors, is to constitute a length using large number of minute concave mirrors
Wide matrix arrangement, also will form the array of a rectangular arranged with regard to saying, each minute concave mirrors is concentrated and reflexes to the speculum 5
On, in this case for the speculum 5, each minute concave mirrors just represents a pixel on display screen
(pixel), so the quantity of minute concave mirrors just represents the upper limit of screen resolution, for example, a width of 480x 240 is grown, represents total
The array that 115,200 minute concave mirrors are constituted is had, the highest resolution of imaging is also limited, even if therefore the throwing
The original parsing of shadow module 3 again it is high be all it is otiose, key is still its minute concave mirrors quantity of the narrow angle diffusion sheet 4
Number and its projection efficiency.
The narrow angle diffusion sheet that above-mentioned narrow angle diffusion sheet 4 is made up of the array of a minute concave mirrors, wherein, the projection module
Position is 3 near the speculum 5, and its advantage is that the narrow angle diffusion sheet 4 can be brighter, it is not necessary to too cloudy surface, so can be with
The absorptivity of light is reduced, to improve reflectivity.
As shown in Fig. 4, Fig. 4-1, the second embodiment of the narrow angle diffusion sheet new line display device provided for the utility model,
The narrow angle diffusion sheet that the narrow angle diffusion sheet 4 is constituted for the array of a minute concave mirrors, wherein, projection module position 3 is in the reflection
Near mirror 5, wherein the minute concave mirrors are pyramid type concave mirror 41 always, then the array of the minute concave mirrors is pyramid always
The array of concave mirror 41, utilizes the principle parallel with reflected ray of incident ray in the right angle characteristic of right angle taper concave mirror 41, the right angle
If tapered concave mirror 41 completely bright face when, its reflection light is almost totally reflected on the light source point of incident light, if but the right angle
Tapered concave mirror 41 slightly band cloudy surface, then its reflection light the reflection of a particular range can be formed about in the light source point of incident light
Face, as long as the speculum 5 is in the reflected range D of this reflecting surface, you can to receive reflection diffusion light.
As shown in Fig. 5, Fig. 5-1, the 3rd embodiment of the narrow angle diffusion sheet new line display device provided for the utility model,
The narrow angle diffusion sheet that the narrow angle diffusion sheet 4 is constituted for the array of a minute concave mirrors, wherein, projection module position 3 is in the reflection
Near mirror 5, wherein the minute concave mirrors are a spheroidal concave mirror 42, then the array of the minute concave mirrors is a spheroidal concave surface
The array of mirror 42, it is special using the reflection of the transparent spheroidal concave mirror 42 when the spheroidal concave mirror 42 is a micro- mist concave mirror
Property in the incident ray principle parallel with reflected ray, if the spheroidal concave mirror 42 completely bright face when, its reflection light is almost complete
Reflex on the light source point of incident light, if but the spheroidal concave mirror 42 slightly band cloudy surface, its reflection light can be in incident light
Light source point is formed about the reflecting surface of a particular range, as long as the speculum 5 is in the reflected range D of this reflecting surface, i.e.,
Reflection diffusion light can be received.
As shown in Fig. 6, Fig. 6-1, the fourth embodiment of the narrow angle diffusion sheet new line display device provided for the utility model,
The narrow angle diffusion sheet that the narrow angle diffusion sheet 4 is constituted for the array of a minute concave mirrors, the wherein minute concave mirrors are that an arc is recessed
Face mirror 43, then the minute concave mirrors array is the array of an arc-shaped concave mirror 43, and the array of arc-shaped concave mirror 43 is to utilize the arc
The concentrating light principles of concave mirror 43, the angle that each arc-shaped concave mirror 43 is designed as having nothing in common with each other, as long as projection distance exceedes the arc
The focal point of shape concave mirror 43, light can scatter on the contrary, as long as the light source of the projection module 3, the narrow angle diffusion sheet 4 are anti-with this
The position of mirror 5 is penetrated all it has been determined that then angles and arc radius of each arc-shaped concave mirror 43 on the narrow angle diffusion sheet 4
Accurate calculating is may pass through, the light for allowing each arc-shaped concave mirror 43 to reflect about covers the speculum 5, to reach most
Effective light source is utilized, and each arc-shaped concave mirror 43 of the arc-shaped concave lens array can beat the bright reflectivity that arrives close to 100%
Boundary, so the light utilization of whole projection module 3 almost can be more than 90%, the light utilization with wide-angle diffusion sheet
Only units is compared, and light utilization of the present utility model exceedes its decades of times, therefore the narrow angle that the utility model is provided is expanded
Discrete piece new line display device is efficiency highest projector diffusion sheet.
Above-mentioned minute concave mirrors be an arc-shaped concave mirror 43, the array being made up of the arc-shaped concave mirror 43, its advantage is even
Light absorption during mirror-reflection can be allowed to be preferably minimized；In addition, another advantage is the scope for limiting reflection light diffusion, allow
Reflection light is sufficiently concentrated and is incident upon on the speculum 5, and especially minute concave mirrors are an arc-shaped concave mirror 43, by the arc
The array that concave mirror 43 is constituted, its range of scatter can be approximately equal to the scope of the speculum 5, allow what the projection module 3 was exported
Image light source L, can reach and make full use of.
Tried one's best on AR HUD (augmented reality HUD) virtual image needs and ground it is parallel laminating, make navigational arrows
The virtual image can be attached in road ahead, and general real image plane, such as TFT or conventional projectors diffusion sheet, perpendicular to the plane
Brightness is maximum, lower with the bigger brightness of vertical line angle, and the virtual image will sacrifice image brilliance with driving sight out of plumb；As schemed
7 show the 5th embodiment of the narrow angle diffusion sheet new line display device of the utility model offer, the wherein minute concave mirrors 44
Array in all minute concave mirrors 44 and the narrow angle diffusion sheet 4 into a bevel angle θ so that diffusion sheet and HUD optical axis formation θ+a
Angle (a represents the setting difference of angle), thereby allow HUD the virtual image with drive visual angle into θ+a angle, be closer to
The parallel laminating in ground, so as to reach the effect that the virtual image agrees with real image.
Tried one's best on AR HUD (augmented reality HUD) virtual image needs and ground parallel laminating, navigational arrows are empty
As that can be attached in road ahead, but general information is still easier the region of reading, one perpendicular to driving visual angle to try one's best
Preferable HUD is preferably based on different application, the virtual image with different angles of display；The utility model offer is provided
The sixth embodiment of narrow angle diffusion sheet new line display device, the wherein narrow angle diffusion sheet 4 are that a curved surface or one have the flat of turnover
Face, can allow image to produce turnover, allow the imaging of the virtual image 6 to turn into three-dimensional, the display content of the narrow angle diffusion sheet new line display device,
Including arrow 61 and word 62, the arrow 61 needs are as far as possible parallel with ground level, and image, which must compare, tends to water
It is flat, but the word 62 is still easier reading with vertical, so word segment is tried one's best vertically.
The narrow angle diffusion sheet new line display device that the utility model is provided is narrow using this by the implementation of various embodiments above
The array of the minute concave mirrors of angle diffusion sheet 4 allows the rough energy of reflection optical range of diffusion there is provided optimal narrow angle diffusion sheet 4
HUD concave mirror is covered, unnecessary without doing wastes to use the projection module (or projector) of wide viewing angle,
To overcome the use of HUD new line display devices to limit, this preferably narrow angle diffusion sheet 4 of the utility model is exactly a kind of using micro-
The reflective diffusion sheet that the array of type concave mirror is constituted, what the utility model can allow projector is imaged onto the bright of HUD concave mirrors
Degree lifting decades of times, even up to hundred times, can effectively solve the problem that projector HUD brightness problem, with compositional optimization visual effect
New line display device, to lift traffic safety.
Specific embodiment proposed in present invention, only to convenient explanation technology contents of the present utility model,
Rather than the utility model is narrowly limited to above-described embodiment, it is all without departing from spirit of the present utility model and claim model
In the case of enclosing, many variations made are implemented, and still fall within protection domain of the present utility model.
Claims (10)
1. a kind of narrow angle diffusion sheet new line display device, comprising：
One projection module, it projects an image light source；
One narrow angle diffusion sheet, is the array of a minute concave mirrors, and the image light source invests the narrow angle diffusion sheet；
One speculum, the narrow angle diffusion sheet reflects the image light source to the speculum；
Characterized in that, the projection module is located at the speculum the same side, the narrow angle diffusion sheet is anti-with this towards the projection module
Penetrate mirror.
2. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the array of the minute concave mirrors
For a length and width matrix arrangement.
3. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the minute concave mirrors is always
Pyramid type concave mirror, the projection module is located near the speculum.
4. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the miniature female tab mirror is a circle
Spherical concave mirror, the projection module is located near the speculum.
5. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the minute concave mirrors are an arc
Shape concave mirror.
6. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the array of the minute concave mirrors
In all minute concave mirrors and the narrow angle diffusion sheet into an oblique angle.
7. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the array of the minute concave mirrors
In the angle had nothing in common with each other of all minute concave mirrors.
8. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the profile of the narrow angle diffusion sheet
For a plane with least one turnover.
9. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the speculum is a concave surface
Mirror.
10. narrow angle diffusion sheet new line display device according to claim 1, it is characterised in that the narrow angle diffusion sheet is one
Curved surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720127884.6U CN206523704U (en) | 2017-02-13 | 2017-02-13 | Narrow angle diffusion sheet new line display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720127884.6U CN206523704U (en) | 2017-02-13 | 2017-02-13 | Narrow angle diffusion sheet new line display device |
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| CN206523704U true CN206523704U (en) | 2017-09-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843985A (en) * | 2017-11-27 | 2018-03-27 | 上海驾馥电子科技有限公司 | Augmented reality HUD system and method |
| CN108427192A (en) * | 2017-02-13 | 2018-08-21 | 怡利电子工业股份有限公司 | Narrow angle diffusion sheet, which comes back, shows equipment |
| CN108761797A (en) * | 2018-07-31 | 2018-11-06 | 惠州市华阳多媒体电子有限公司 | A kind of projection module applied to WHUD |
| WO2020233492A1 (en) * | 2019-05-17 | 2020-11-26 | 未来（北京）黑科技有限公司 | Display device, head-up display, and motor vehicle |
| WO2020233528A1 (en) * | 2019-05-17 | 2020-11-26 | 未来（北京）黑科技有限公司 | Head-up display device and motor vehicle |
| WO2022078053A1 (en) * | 2020-10-13 | 2022-04-21 | 华为技术有限公司 | Augmented reality display apparatus |
-
2017
- 2017-02-13 CN CN201720127884.6U patent/CN206523704U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427192A (en) * | 2017-02-13 | 2018-08-21 | 怡利电子工业股份有限公司 | Narrow angle diffusion sheet, which comes back, shows equipment |
| CN107843985A (en) * | 2017-11-27 | 2018-03-27 | 上海驾馥电子科技有限公司 | Augmented reality HUD system and method |
| CN108761797A (en) * | 2018-07-31 | 2018-11-06 | 惠州市华阳多媒体电子有限公司 | A kind of projection module applied to WHUD |
| WO2020233492A1 (en) * | 2019-05-17 | 2020-11-26 | 未来（北京）黑科技有限公司 | Display device, head-up display, and motor vehicle |
| WO2020233528A1 (en) * | 2019-05-17 | 2020-11-26 | 未来（北京）黑科技有限公司 | Head-up display device and motor vehicle |
| US11796806B2 (en) | 2019-05-17 | 2023-10-24 | Futurus Technology Co., Ltd. | Head-up display device and motor vehicle |
| US11860360B2 (en) | 2019-05-17 | 2024-01-02 | Futurus Technology Co., Ltd. | Display apparatus, head-up display and motor vehicle |
| WO2022078053A1 (en) * | 2020-10-13 | 2022-04-21 | 华为技术有限公司 | Augmented reality display apparatus |
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