CN107589544A - A kind of big visual field head-wearing display device and big field stitching method - Google Patents
A kind of big visual field head-wearing display device and big field stitching method Download PDFInfo
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- CN107589544A CN107589544A CN201710786241.7A CN201710786241A CN107589544A CN 107589544 A CN107589544 A CN 107589544A CN 201710786241 A CN201710786241 A CN 201710786241A CN 107589544 A CN107589544 A CN 107589544A
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- visual field
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Abstract
The invention discloses a kind of big visual field head-wearing display device and big field stitching method, belong to dimension display technologies field, wherein, big visual field head-wearing display device includes monocular system or the biocular systems being made up of two monocular systems；Monocular system includes the display for being successively set on the lens group in front of human eye and being placed on after lens group；Lens group includes at least one set of Fresnel Lenses, and the resin plate that every group of Fresnel Lenses is carved with Fresnel Lenses broached-tooth design by two pieces is spliced to form；Display is two pieces, parallel with corresponding resin plate respectively；Angle β between line of the summit of the stitching portion of two pieces of resin plates to eyeball center and the optical axis perpendicular to eyeball is more than 0 °.Head-wearing display device before contrast, the present invention can realize the display of big visual field, so as to increase the feeling of immersion of user.
Description
Technical field
The present invention relates to dimension display technologies field, specifically, is related to a kind of big visual field head-wearing display device and regards greatly
Field joining method.
Background technology
Dimension display technologies are an important research developing direction of Display Technique.In recent years, it is general due to VR, AR technology
And application, the research on head-wearing display device also increase gradually.
Research shows that the transverse field of human visual system is about 190 °, and 120 ° therein are used for binocular vision.(refer to
Ruch,T.,AND Fulton,J.F.1960.Medical physiology and biophysics.W.B.Saunders
Company).Therefore, professional generally believes that the optimal angle of visual field of head-wearing display device is 120 °.And current main flow on the market
Head-wearing display device, such as Oculus Rift DK2 (100 °), HTC Vive (110 °) etc., its angle of visual field is not up to worn
The optimal visual field of display, therefore how to realize that the head-wearing display device of big visual field is a HMD fields problem urgently to be resolved hurrily.
The content of the invention
For the purpose of the present invention to provide a kind of big visual field head-wearing display device and big field stitching method, display is worn in increase
The angle of visual field of device, so that the picture that head-mounted display is presented can meet structoure of the human body and behavioural habits, ensure to use with this
Person obtains more sufficient feeling of immersion.
To achieve these goals, big visual field head-wearing display device provided by the invention includes monocular system or by two list
The biocular systems that mesh system is formed；Monocular system include be successively set on the lens group in front of human eye and be placed on lens group it
Display afterwards；Lens group includes at least one set of Fresnel Lenses, and every group of Fresnel Lenses is carved with Fresnel Lenses by two pieces to be sawed
The resin plate of toothing is spliced to form；Display is two pieces, parallel with corresponding resin plate respectively；The stitching portion of two pieces of resin plates
Line of the summit to eyeball center and the optical axis perpendicular to eyeball between angle β be more than 0 °.
In above-mentioned technical proposal, Fresnel Lenses group is used for the image of display projection into the virtual image of amplification, and every group luxuriant and rich with fragrance
The resin plate that Nie Er lens are carved with Fresnel Lenses broached-tooth design by two pieces is spliced, and why uses the Fresnel Lenses of splicing
Group replaces common lens, is in order that left and right fields of vision is more convenient in splicing.If being common lens group, due to
Its profile is generally circular in cross section, can not accomplish when two sets of left and right, imaging system is spliced seamless spliced.And spliced with two pieces of resin plates
Form, because its profile is rectangle, gap is not present after two rectangle splicings.
The summit of two pieces of resin plate stitching portions is set to the line at eyeball center, with the folder between the optical axis of eyeball
Angle is more than 0 °, and the reason for doing so is as follows：
In monocular system, if eyes see the stitching portion to two pieces of resin plates just, because stitching portion is not imaged work
With, therefore this when of human eye can't see the image of display projection.And last complete biocular systems contain as above two sets
Monocular system, if being not provided with this angle requirement, then when eye-observation infinite point, binocular all falls in two sets of systems just
Unite respective Fresnel Lenses stitching portion, now binocular can not all obtain the image from display, therefore this position into
For blind area.And there is provided after this angle, due to binocular convergence, when an eyes are seen to the stitching portion of Fresnel Lenses,
Another eyes will not necessarily see the stitching portion to it, therefore viewing blind zone is not present.
Specific scheme is that two pieces of resin plates are spliced into L-type.
Another specific scheme is two groups of Fresnel Lenses that lens group includes parallel arrangement.Also can be arranged as required to
Into the Fresnel Lenses group of other quantity.
Another specific scheme is that optical system is distinguished by visual observation positioned at the display of human eye left front and right front
Two virtual images for forming amplification have overlapping region δ in space, and in overlapping region δ, the brightness of image of two displays is from display
It is gradually dimmed to edge that device overlaps place.In order to be finally synthesizing the uniformity of brightness of image.
Further specific scheme is each L-type Fresnel Lenses, and its each arm forms one with optical lens thereafter
Individual visual system, and the parameter area of optical system is as follows：
Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and overlapping region is 90 °；The visual system of two-arm
A monocular optical system is combined into, its visual field is more than 120 °.
So L-type Fresnel Lenses two-arm is respectively the optical system more than a set of 80 ° of angles of visual field, just turns into after splicing
Optical systems more than one 120 ° of visual field.
Another specific scheme is that biocular systems include two sets of symmetrically placed monocular systems；The mono-vision of biocular systems
Field is more than 120 °, and eyes visual field is more than 150 °, and lap is more than 90 °.
A kind of method that left and right fields of vision is spliced into one big visual field, realized based on big visual field head-wearing display device, including with
Lower step：
Step 1：Same width image/video is divided into two parts, shown respectively on two displays；
Step 2：The closely end of two displays has a presentation content same area；
Step 3：Into the virtual image of amplification, two virtual images have optical system in space by visual observation respectively for two displays
Overlapping region.
In step 3 in overlapping region, the brightness of image in display corresponding with overlapping region is out of display to side
Edge is gradually dimmed.
Compared with prior art, beneficial effects of the present invention are：
Head-wearing display device before contrast, the present invention can realize the display of big visual field, so as to increase the heavy of user
Leaching sense.
Brief description of the drawings
Fig. 1 is the structural representation of monocular system embodiment of the present invention；
Fig. 2 is the structural representation of biocular systems embodiment of the present invention；
Fig. 3 is the concrete structure diagram of a wherein arm visual system in monocular system embodiment of the present invention；
Fig. 4 is Fig. 3 MTF curve figure.
Embodiment
With reference to embodiments and its accompanying drawing the invention will be further described.
Monocular system embodiment
Referring to Fig. 1, the monocular system of big visual field head-wearing display device includes being placed sequentially in the lens group before human eye, and
It is positioned over after lens group, is respectively placed in two displays of human eye left front and right front.Lens group includes at least one L
Type Fresnel Lenses, and use L-type Fresnel Lenses close to first piece of lens of human eye.
In the present embodiment, lens group includes two L-type Fresnel Lenses, wherein, the first L-type phenanthrene alunite nearest apart from human eye
Your lens are connected by resin plate 2 with the both ends of resin plate 3 to be formed, and the second L-type Fresnel Lenses is by resin plate 4 and the both ends of resin plate 5
It is connected and forms, the broached-tooth design of Fresnel Lenses is carved with respective two surfaces at least side surface of every piece of resin plate, and forms L
Between line of the summit to eyeball center of two pieces of resin plate junctions of type Fresnel Lenses and the optical axis perpendicular to eyeball
Angle β is more than 0 °, and to avoid when observing infinite point, binocular sees the splicing to two pieces of resin plates of L-type Fresnel Lenses simultaneously
Place, so as to blind area occur.In the front of resin plate 4 and resin plate 5, i.e., a left side is placed respectively positioned at the left front of human eye and right front
Display 6 and right display 7.
The each arm of L-type Fresnel Lenses forms a complete visual system with optical lens thereafter, and it has
Body structure can be as shown in figure 3, contain the Fresnel Lenses and two aspherical plastic lens lens close to human eye.Left side
For position of human eye, right side is location of displays.Display uses OLED display screen, and pixel size is about 50um, and striped demand pairs are
10lp/mm.Fig. 4 be Fig. 3 design sketch, ensure the 10lp/mm frequencies under each viewing angle image can be imaged it is clear.
Left display 6 and right display 7 form the virtual image 8 and the virtual image 9 of amplification by L-type Fresnel Lenses respectively, two
The virtual image has overlapping region δ in space.In overlapping region δ, the brightness of image of left display 6 and right display 7 is from display
Overlapping place is gradually dimmed to edge, therefore two displays are after the image of overlapping region is superimposed, its total brightness and Liang Tai
The brightness of the respective Non-overlapping Domain of display is identical, is easy to be finally synthesizing the uniformity of brightness of image, is achieved in left and right fields of vision
Smooth registration.
Each L-type Fresnel Lenses as described above, its each arm form one completely with optical lens thereafter
Visual system, and the parameter area of optical system is as follows：
Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and it is 90 ° to ensure overlapping region；The visual optical of two-arm
System is combined into a monocular optical system, and its visual field is more than 120 °.
So L-type Fresnel Lenses two-arm is respectively the optical system more than a set of 80 ° of angles of visual field, just turns into after splicing
Optical systems more than one 120 ° of visual field.
Biocular systems embodiment
Referring to Fig. 2, the biocular systems of big visual field head-wearing display device include two sets of monocular systems of symmetrical placement.
Big field stitching method embodiment
Method by left and right fields of vision smooth registration into one big visual field, realized based on big visual field head-wearing display device, including
Following steps：
Step 1：Same width image/video is divided into two parts, shown respectively on two displays；
Step 2：The closely end of two displays has a presentation content same area；
Step 3：Into the virtual image of amplification, two virtual images have optical system in space by visual observation respectively for two displays
Overlapping region.
It is required that in overlapping region, the brightness of image in display corresponding with overlapping region is out of display to edge
It is gradually dimmed.For two displays after the image of overlapping region is superimposed, its total brightness and two displays are each non-overlapped
The brightness in region is identical, and the smooth registration of left and right fields of vision is realized with this.
Claims (8)
- A kind of 1. big visual field head-wearing display device, it is characterised in that：Formed including monocular system or by two monocular systems Biocular systems；The monocular system includes being successively set on the lens group in front of human eye and the display being placed on after the lens group Device；The lens group includes at least one set of Fresnel Lenses, and every group of Fresnel Lenses is carved with Fresnel Lenses sawtooth knot by two pieces The resin plate of structure is spliced to form；Described display is two pieces, parallel with corresponding resin plate respectively；Angle β between line of the summit of the stitching portion of two pieces of resin plates to eyeball center and the optical axis perpendicular to eyeball More than 0 °.
- 2. big visual field head-wearing display device according to claim 1, it is characterised in that：Resin plate described in two pieces is spliced into L-type.
- 3. big visual field head-wearing display device according to claim 1, it is characterised in that：Described lens group includes two groups of Fresnel Lenses of parallel arrangement.
- 4. big visual field head-wearing display device according to claim 1, it is characterised in that：It is described that positioned at the display of human eye left front and right front, optical system forms two virtual images of amplification respectively by visual observation There is overlapping region δ in space, in overlapping region δ, the brightness of image of two displays overlapped from display to edge by Gradual change is dark.
- 5. big visual field head-wearing display device according to claim 4, it is characterised in that：Described each L-type Fresnel Lenses, its each arm form a visual system with optical lens thereafter, and The parameter area of optical system is as follows：Horizontal to be more than 80 ° with vertical field of view, inner side half-angle is 45 °, and overlapping region is 90 °；The visual system of two-arm is combined into a monocular optical system, and its visual field is more than 120 °.
- 6. big visual field head-wearing display device according to claim 1, it is characterised in that：Described biocular systems include two sets of symmetrically placed monocular systems；The simple eye visual field of the biocular systems is more than 120 °, Eyes visual field is more than 150 °, and lap is more than 90 °.
- 7. a kind of method that left and right fields of vision is spliced into one big visual field, based on the big visual field head described in any one of claim 1~6 Wear display device realization, it is characterised in that comprise the following steps：Step 1：Same width image/video is divided into two parts, shown respectively on two displays；Step 2：The closely end of two displays has a presentation content same area；Step 3：Into the virtual image of amplification, two virtual images have overlapping optical system two displays in space by visual observation respectively Region.
- 8. big visual field head-wearing display device according to claim 7, it is characterised in that：In overlapping region described in step 3, with the brightness of image in corresponding display in described overlapping region from aobvious Show gradually dimmed to edge in device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710786241.7A CN107589544A (en) | 2017-09-04 | 2017-09-04 | A kind of big visual field head-wearing display device and big field stitching method |
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| CN201710786241.7A CN107589544A (en) | 2017-09-04 | 2017-09-04 | A kind of big visual field head-wearing display device and big field stitching method |
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Cited By (4)
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| CN108174175A (en) * | 2018-01-30 | 2018-06-15 | 小派科技（上海）有限责任公司 | VR display systems based on mobile terminal |
| WO2021031568A1 (en) * | 2019-08-20 | 2021-02-25 | 江苏数字鹰科技股份有限公司 | Visual system with wide field-of-view angle |
| CN114967215A (en) * | 2022-05-31 | 2022-08-30 | 京东方科技集团股份有限公司 | Display device and virtual reality device |
| CN116149065A (en) * | 2023-04-24 | 2023-05-23 | 歌尔光学科技有限公司 | Optical module and wearable equipment |
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| CN103261943A (en) * | 2010-12-28 | 2013-08-21 | 洛克希德马丁公司 | Head-mounted display apparatus employing one or more fresnel lenses |
| CN104932105A (en) * | 2015-06-24 | 2015-09-23 | 北京理工大学 | Splicing type head-mounted display device |
| CN205787371U (en) * | 2016-05-20 | 2016-12-07 | 成都理想境界科技有限公司 | A kind of near-eye display system for virtual reality |
| CN206115027U (en) * | 2016-08-11 | 2017-04-19 | 成都虚拟世界科技有限公司 | Wear -type virtual reality display equipment |
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| CN103261943A (en) * | 2010-12-28 | 2013-08-21 | 洛克希德马丁公司 | Head-mounted display apparatus employing one or more fresnel lenses |
| CN104932105A (en) * | 2015-06-24 | 2015-09-23 | 北京理工大学 | Splicing type head-mounted display device |
| CN205787371U (en) * | 2016-05-20 | 2016-12-07 | 成都理想境界科技有限公司 | A kind of near-eye display system for virtual reality |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174175A (en) * | 2018-01-30 | 2018-06-15 | 小派科技（上海）有限责任公司 | VR display systems based on mobile terminal |
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| WO2021031568A1 (en) * | 2019-08-20 | 2021-02-25 | 江苏数字鹰科技股份有限公司 | Visual system with wide field-of-view angle |
| CN114967215A (en) * | 2022-05-31 | 2022-08-30 | 京东方科技集团股份有限公司 | Display device and virtual reality device |
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| CN116149065A (en) * | 2023-04-24 | 2023-05-23 | 歌尔光学科技有限公司 | Optical module and wearable equipment |
| CN116149065B (en) * | 2023-04-24 | 2023-08-04 | 歌尔光学科技有限公司 | Optical module and wearable equipment |
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