CN109491092A - A kind of display device, production method and wearable device - Google Patents
A kind of display device, production method and wearable device Download PDFInfo
- Publication number
- CN109491092A CN109491092A CN201910024501.6A CN201910024501A CN109491092A CN 109491092 A CN109491092 A CN 109491092A CN 201910024501 A CN201910024501 A CN 201910024501A CN 109491092 A CN109491092 A CN 109491092A
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- China
- Prior art keywords
- display device
- lenticule
- display
- panel
- refractive index
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Classifications
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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
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
Abstract
The invention discloses a kind of display device, production method and wearable device, the display device includes display panel；Positioned at the microlens array of the display panel light emission side, wherein the microlens array includes multiple lenticules member of array arrangement, wherein the refractive index of each lenticule member is radially successively decreased centered on the optical axis of the lenticule member.Display device provided by the invention by using gradually changed refractive index microlens array, while realizing that nearly eye field is shown, angle by controlling emergent ray realizes the constraint that the optical path of light is shown to image, it is limited to it in corresponding region, crosstalk caused by light superposition to avoid adjacent lens member from being emitted, to increase visible area while promoting viewing effect.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of display device, production method and wearable device.
Background technique
Realizing that three-dimensional information is shown in nearly eye display device is mostly the principle for using binocular parallax, as the nearly eye of VR shows skill
Art is the image for showing right and left eyes respectively on the corresponding near-eye display of right and left eyes, eyes obtain with after discrepant information
It can produce stereoscopic vision in brain.This kind of mode is simple eye can not to be presented stereoscopic vision, and is limited to fusion of the brain to image
Ability cannot achieve the big depth of field and three-dimensional sense, there are problems that focal length and influx are also easy to produce sense of discomfort.
It relies on integrated light field principle to realize that VR wears the mode that light field is shown and can generate simple eye focus adjustment, is realizing
Monocular stereo vision solves the problems, such as influx simultaneously to solve the disadvantage that conventional three-dimensional is shown, but existing integrated light field show it is general
All over there is a problem that visual angle is narrow.As shown in Figure 1, display image is by microlens array imaging, the imaging one side by
It is limited to the structural parameters of system itself, on the other hand since shape can not only be imaged by corresponding lens cells in the subgraph picture of light field
At primary vision area, can also be imaged to form time vision area by adjacent or alternate lens cells, the image that secondary vision area is shown is only to main view
The simple repetition of area's image, and when viewer is between different vision areas, it just can be appreciated that the crosstalk with jump and crackle
Image.
Summary of the invention
At least one to solve the above-mentioned problems, first aspect present invention provides a kind of display device, including
Display panel；
Positioned at the microlens array of the display panel light emission side, wherein
The microlens array includes multiple lenticules member of array arrangement, wherein the refractive index of each lenticule member
Radially successively decreased centered on the optical axis of the lenticule member.
Further, the display panel includes multiple tiled display sub-panels.
Further, the optical normal line of each display sub-panel converges at the microlens array far from the display
At any of panel side.
Further, the corresponding one group of lenticule member of each display sub-panel, each of described one group of lenticule member
The light-emitting surface of lenticule member is arranged in parallel with the light-emitting surface of corresponding display sub-panel.
Further, the spacing between two neighboring display sub-panel meets preset range.
Further, the multiple display sub-panel is equal sized.
Further, the refractive index of the lenticule member are as follows:Wherein nrFor along radial direction away from
From the refractive index at the optical axis r, A is gradual change constant.
Further, the lenticule member includes
Substrate of glass；
First group of transparent metal film layer being formed on the first surface of the substrate of glass, wherein first group of metal
The refractive index of multiple transparent metal film layers in film layer is successively decreased along the direction far from the substrate of glass；
Second group of transparent metal film layer being formed on the second surface opposite with first surface of the substrate of glass,
Described in the refractive index of multiple transparent metal film layers in second group of metallic diaphragm successively decrease along the direction far from the substrate of glass.
Further, the lenticule member includes substrate of glass,
Wherein the substrate of glass includes the low ion of electronic polarizability high ion and electronic polarizability, the electron pole
The high ion of rate and the low ion distribution of electronic polarizability so that the refractive index of lenticule member with the lenticule member
Optical axis centered on radially successively decrease.
Second aspect of the present invention provides a kind of wearable device, including display device described in first aspect.
Third aspect present invention provides a kind of production method of display device, forms microlens array, the lenticule battle array
Column include multiple lenticules member of array arrangement, wherein the refractive index of each lenticule member is with the optical axis of the lenticule member
Centered on radially successively decrease；
By it is multiple display sub-panels be spliced into so that it is each it is described display sub-panel optical normal line converge at it is described micro-
Lens array far from the display panel side a little at.
Beneficial effects of the present invention are as follows:
The present invention formulates a kind of display device, production method and wearable device, by adopting for existing problem at present
With the microlens array of gradually changed refractive index, while realizing that nearly eye field is shown, the angle by controlling emergent ray is realized
The constraint that the optical path of light is shown to image, is limited to it in corresponding region, so that the problems of the prior art are compensated for,
The interference of subgraph corresponding to adjacent lens member is effectively avoided, and then increases visible area while promoting viewing effect.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows the schematic diagram that display device in the prior art integrates optical field imaging；
Fig. 2 shows the structural schematic diagrams of display device described in one embodiment of the present of invention；
Fig. 3 shows the index distribution schematic diagram of the member of lenticule described in one embodiment of the present of invention；
Fig. 4 a-4b shows the structural schematic diagram of the member of lenticule described in one embodiment of the present of invention；
Fig. 5 shows the light path schematic diagram of display device in the prior art；
Fig. 6 shows the light path schematic diagram of display device described in one embodiment of the present of invention；
Fig. 7 shows the structural schematic diagram of display device described in another embodiment of the invention；
Fig. 8 shows the structural schematic diagram of display device described in another embodiment of the invention；
Fig. 9 shows the flow chart of the production method of display device described in one embodiment of the present of invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in Fig. 2, An embodiment provides a kind of display device, including display panel；Positioned at described
The microlens array of display panel light emission side, wherein the microlens array includes multiple lenticules member of array arrangement, wherein
The refractive index of each lenticule member is radially successively decreased centered on the optical axis of the lenticule member.
In a specific example, display device includes display panel 1 and microlens array 2, the microlens array 2
Positioned at the light emission side of the display panel 1, microlens array 2 includes multiple lenticule members 21, as shown in figure 3, each lenticule
The structure of member 21 is centered on optical axis using D/2 as the semiellipse of radius, wherein to be located at the refractive index n at optical axis center0For
Maximum value, the refractive index nrRadially variation is gradually reduced in gradient, the refractive index are as follows:
Wherein nrFor along the refractive index of direction r, A is gradual change constant, r is the distance apart from optical axis, and the refractive index obeys square law
The regularity of distribution.
As shown in fig. 4 a, the lenticule member 21 includes substrate of glass 211；It is formed in the first surface of the substrate of glass
First group of transparent metal film layer 213 on 212, wherein multiple transparent metal film layers in first group of metallic diaphragm 213
Refractive index is successively decreased along the direction far from the substrate of glass；It is formed in opposite with first surface 212 of the substrate of glass
Second group of transparent metal film layer 215 on two surfaces 214, wherein multiple transparent metals in second group of metallic diaphragm 215
The refractive index of film layer is successively decreased along the direction far from the substrate of glass.Specifically, the lenticule member 21 has stacking film layer knot
Structure, wherein middle film layer is refractive index maximum layer, and the refractive index of each layer in both sides is successively decreased in gradient along center, in the present embodiment,
The lenticule member 21 is prepared by chemical vapour deposition technique, and using glass as substrate, two sides use two targets to carry out respectively
Preparation, the metallic diaphragm of different refractivity, the metal film are deposited by multiple chemical gas-phase deposition on the substrate
The thickness of layer is less than 20 nanometers, to be formed centered on the glass, each metallic diaphragm in two edges is presented refractive index gradient and becomes
The multiple film layer structure of change.
As shown in Figure 4 b, the lenticule member 21 includes substrate of glass 211, wherein the substrate of glass includes electronic polarization
The low ion 216 of rate and the high ion 217 of electronic polarizability, the high ion of the electronic polarizability and electronic polarizability it is low from
Son distribution is so that the refractive index of lenticule member is radially successively decreased centered on the optical axis of the lenticule member.Specifically
, the lenticule member 21 has stacking film layer structure, and wherein middle film layer is refractive index maximum layer, the refractive index of each layer in both sides
Successively decrease in gradient along center, in the present embodiment, the lenticule member 21 is prepared by ion-exchange, the glass base
Bottom includes other low ions of electronic polarizability high Cs+, Rb+ or TI+ ion and electronic polarizability, and the glass is put into packet
In dissolved salt containing K+ or Na+ ion, ion exchange, the high ion of electronic polarizability are carried out according to the temperature and time pre-seted
217 carry out depth exchanges, and the low ion 216 of electronic polarizability carries out either shallow exchange, the electronic polarizability of the glass from 216 to
217 gradually increase, therefore ultimately form and the multiple film layer structure that refractive index gradient changes is presented to both sides along center of glass.
The light that display panel 1 is emitted enters each lenticule member 21 of microlens array 2, in lenticule member 21 in generation
Reflection, so that it is guaranteed that the incident light of different angle changes transmission optical path in the lenticule member 21 of gradually changed refractive index, with fixed
Shooting angle projects, thus crosstalk phenomenon caused by effectively avoiding adjacent image light from being superimposed.
In the prior art, as shown in figure 5, the common microlens array that the light emission side corresponding array of display panel 1 is arranged
5, display panel 1 is divided by the first 51 corresponding image primitives of multiple lenticules with microlens array according to the microlens array
It is described, the light that described image member projects enters common lenticule member 51, such as the light that image primitive 1 is emitted enters correspondence
Lenticule member, projected by lenticule member 51 and according to different incident angles according to corresponding shooting angle, it is described
A part of light enters corresponding 1st area of image, and another part enters image 0th area and image 2nd area adjacent with 1st area of image, from
And it is generated with the light in 2nd area of 0th area of image or image overlapping to form crosstalk zone；The part light of 1 outgoing of described image member simultaneously
Line enters adjacent lenticule member, and the light of the light and adjacent image area that project through lenticule member, which generates to overlap, forms crosstalk
Area is further exacerbated by crosstalk image.Therefore when viewer is in different vision areas, the crosstalk zone affects the vision of viewer
Experience, limit the visual angle of viewer.
Using display device provided by the invention, as shown in fig. 6, the light emission side corresponding array of display panel 1 arrange it is micro-
Lens array 2, the image light of display panel 1 enter the lenticule member 21 of gradually changed refractive index, such as the light that image primitive 1 is emitted
Into corresponding lenticule member 21 or adjacent lenticule member 21, occur in the lenticule member 21 of the gradually changed refractive index interior anti-
It penetrates, incident ray carries out transmission according to the optical path pre-seted and is emitted according to the angle pre-seted, effectively avoids and closes on micro-
The light of mirror member outgoing occurs overlapping.The light that i.e. image primitive projects enters the index microlenses array 2 according to radial gradual
When, in lenticule member 21 internal reflection occurs for the light, according to the refractive index of gradual change according to optic path as shown in the figure, and presses
According to fixed angle emergent ray, the emergent ray will not be overlapping with the light of neighbor map pixel, therefore avoids because of neighbor map
Crosstalk phenomenon caused by pixel emergent ray is superimposed.
In a preferred embodiment, as shown in fig. 7, the display panel includes multiple tiled display sub-panels, institute
The lenticule member 21 that the image light that display sub-panel issues passes through the gradually changed refractive index of microlens array 2 is stated, not only maximum limit
Eliminate or reduce crosstalk zone in degree ground, additionally it is possible to effectively increase the range of primary vision area 3, effectively promote the viewing range of viewer.
In another preferred embodiment, as shown in figure 8, the display panel 1 is spelled including multiple according to certain angle
The optical normal line of the display sub-panel connect, each display sub-panel converges at the microlens array far from the display surface
Plate side a little locate, wherein the optical normal line be process it is described show sub-panel light-emitting surface central point and perpendicular to
The straight line of the light-emitting surface.The i.e. described display sub-panel splices using the eyes of the viewer as the center of circle according to circular arc,
By the range further expansion of primary vision area while elimination crosstalk zone.Further, each display sub-panel is one group corresponding
Lenticule is first, and the light-emitting surface of the light-emitting surface of each lenticule member in one group of lenticule member and corresponding display sub-panel is flat
Row setting.The i.e. described microlens array is divided into corresponding lenticule member a group by a group, every group each micro- according to display sub-panel
Lens cells are corresponding with the display pixel of sub-panel, and the lenticule member covers one or more pixels, such display device
Display effect it is best.
In another preferred embodiment, the spacing between two neighboring display sub-panel meets preset range, wherein
The spacing is distance of the central point of a display sub-panel to the adjacent central point for showing sub-panel, the preset range
For the best image range for realizing naked eye 3D, such as the average headway of right and left eyes of viewer is 7cm, when two neighboring display is sub
Spacing between panel can guarantee that the left eye of viewer and the image of right eye viewing come from difference when being in the range less than 7cm
Display sub-panel, to realize the best image of naked eye 3D.Further, the multiple to realize better viewing experience
Show sub-panel it is equal sized, when it is each display sub-panel it is equal sized when, display picture more evenly, it is apparent.
One embodiment of the present of invention additionally provides a kind of wearable device, including above-mentioned display device.It is described wearable
Equipment can be the nearly eye display device based on integrating light field principle, such as VR glasses.It is wearable described in the present embodiment
Equipment solves picture crosstalk on the basis of realizing naked eye 3D, effectively expansion display view angle.
Corresponding with display device provided by the above embodiment, one embodiment of the present of invention also provides a kind of above-mentioned display
The production method of device, the display device phase provided due to production method provided by the embodiments of the present application with above-mentioned several embodiments
It is corresponding, therefore it is also applied for production method provided in this embodiment in aforementioned embodiments, it no longer retouches in detail in the present embodiment
It states.
As shown in figure 9, one embodiment of the present of invention also provides a kind of production method of above-mentioned display device, including formed
Microlens array, the microlens array includes multiple lenticules member of array arrangement, wherein the folding of each lenticule member
Rate is penetrated radially to successively decrease centered on the optical axis of the lenticule member；Multiple display sub-panels are spliced into so that each institute
State display sub-panel optical normal line converge at the microlens array far from the display panel side a little at.
The present invention formulates a kind of display device, production method and wearable device, by adopting for existing problem at present
Light path control is carried out to the light that display panel is emitted with the realization of the microlens array of gradually changed refractive index, so that incidence angles degree
Optics projected according to fixed shooting angle, to compensate for the problems of the prior art, adjacent lens member is effectively avoided to go out
Crosstalk caused by light is superimposed is penetrated, and then increases visible area while promoting viewing effect.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (11)
1. a kind of display device, which is characterized in that including
Display panel；
Positioned at the microlens array of the display panel light emission side, wherein
The microlens array includes multiple lenticules member of array arrangement, wherein the refractive index of each lenticule member is with institute
It states and radially successively decreases centered on the optical axis of lenticule member.
2. display device according to claim 1, which is characterized in that
The display panel includes multiple tiled display sub-panels.
3. display device according to claim 2, which is characterized in that the optical normal line convergence of each display sub-panel
In the microlens array far from the display panel side a little at.
4. display device according to claim 3, which is characterized in that each corresponding one group of lenticule of the display sub-panel
Member, the light-emitting surface of each lenticule member in one group of lenticule member show that the light-emitting surface of sub-panel is parallel and set with corresponding
It sets.
5. display device according to claim 2, which is characterized in that the spacing between two neighboring display sub-panel meets
Preset range.
6. display device according to claim 2, which is characterized in that the multiple to show the equal sized of sub-panel.
7. display device according to claim 1 to 6, which is characterized in that the refractive index of the lenticule member
Are as follows:Wherein nrFor the refractive index along radial direction at the optical axis r, A is gradual change constant.
8. display device according to claim 7, which is characterized in that the lenticule member includes
Substrate of glass；
First group of transparent metal film layer being formed on the first surface of the substrate of glass, wherein first group of metallic diaphragm
In the refractive index of multiple transparent metal film layers successively decrease along far from the direction of the substrate of glass；
Second group of transparent metal film layer being formed on the second surface opposite with first surface of the substrate of glass, wherein institute
The refractive index for stating multiple transparent metal film layers in second group of metallic diaphragm is successively decreased along the direction far from the substrate of glass.
9. display device according to claim 7, which is characterized in that the lenticule member includes substrate of glass,
Wherein the substrate of glass includes the low ion of electronic polarizability high ion and electronic polarizability, the electronic polarizability
The low ion distribution of high ion and electronic polarizability so that the refractive index of lenticule member with the light of the lenticule member
Radially successively decrease centered on axis.
10. a kind of wearable device, which is characterized in that including display device according to claim 1 to 9.
11. a kind of production method of display device, it is characterised in that
Microlens array is formed, the microlens array includes multiple lenticules member of array arrangement, wherein each described micro-
The refractive index of mirror member is radially successively decreased centered on the optical axis of the lenticule member；
Multiple display sub-panels are spliced into so that the optical normal line of each display sub-panel converges at the lenticule battle array
It arranges at any far from the display panel side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910024501.6A CN109491092A (en) | 2019-01-10 | 2019-01-10 | A kind of display device, production method and wearable device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910024501.6A CN109491092A (en) | 2019-01-10 | 2019-01-10 | A kind of display device, production method and wearable device |
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| CN109491092A true CN109491092A (en) | 2019-03-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110275309A (en) * | 2019-07-04 | 2019-09-24 | 京东方科技集团股份有限公司 | Polarize microlens structure, display device and its driving method |
| CN110927976A (en) * | 2019-12-25 | 2020-03-27 | 上海视欧光电科技有限公司 | Head-mounted display optical module and equipment |
| CN111175982A (en) * | 2020-02-24 | 2020-05-19 | 京东方科技集团股份有限公司 | Near-to-eye display device and wearable equipment |
| CN117233873A (en) * | 2023-11-13 | 2023-12-15 | 深圳市顺达荣科技有限公司 | Manufacturing method of separable lens module of LED display screen of all-in-one machine and display screen |
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| CN117233873B (en) * | 2023-11-13 | 2024-02-02 | 深圳市顺达荣科技有限公司 | Manufacturing method of separable lens module of LED display screen of all-in-one machine and display screen |
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