CN113791497A - Near-to-eye display device, augmented reality glasses and using method - Google Patents
Near-to-eye display device, augmented reality glasses and using method Download PDFInfo
- Publication number
- CN113791497A CN113791497A CN202111077855.0A CN202111077855A CN113791497A CN 113791497 A CN113791497 A CN 113791497A CN 202111077855 A CN202111077855 A CN 202111077855A CN 113791497 A CN113791497 A CN 113791497A
- Authority
- CN
- China
- Prior art keywords
- imaging
- light
- microlens
- light emitting
- pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a near-eye display device, augmented reality glasses and a using method, wherein the near-eye display device comprises the following components in sequential stacking arrangement: a light emitting device including a plurality of repeated light emitting units arranged in an array, each light emitting unit including a plurality of pixel islands, each pixel island including a plurality of pixels; the imaging array comprises imaging units which correspond to the light emitting units one by one, each imaging unit comprises imaging parts which correspond to the pixel islands one by one, and each imaging part images the light rays emitted by the corresponding pixel island and forms first virtual images at different positions; and the lens unit is used for respectively imaging the first virtual images formed by the imaging parts of the imaging array so that the light rays emitted by the pixel islands enter human eyes and respectively form complete second virtual images at different positions away from the human eyes. The near-eye display device provided by the embodiment of the invention solves the convergence accommodation conflict of vision, ensures the imaging quality of images, and is light in weight and convenient to use.
Description
Technical Field
The invention relates to the technical field of display, in particular to a near-eye display device, augmented reality glasses and a using method.
Background
In recent years, near-eye display technology is rapidly developing, and among them, Virtual Reality (VR) and Augmented Reality (AR) technologies are most representative, and provide excellent viewing experience to people. The near-eye display technology is a technology capable of projecting images directly into the eyes of viewers, so as to realize immersive display experience, and therefore how to solve the problem of convergence and accommodation conflict is a problem to be solved urgently.
Disclosure of Invention
In order to solve at least one of the above problems, a first embodiment of the present invention provides a near-eye display device, including:
a light emitting device including a plurality of repeated light emitting units arranged in an array, each light emitting unit including a plurality of pixel islands, each pixel island including a plurality of pixels;
the imaging array comprises imaging units which correspond to the light emitting units one by one, each imaging unit comprises imaging parts which correspond to the pixel islands one by one, and each imaging part images the light rays emitted by the corresponding pixel island and forms first virtual images at different positions; and
and the lens unit is used for respectively imaging the first virtual images formed by the imaging parts of the imaging array so as to enable the light rays emitted by the pixel islands to enter human eyes and respectively form complete second virtual images at different positions away from the human eyes.
In a specific embodiment, a first virtual image formed by light rays emitted by one pixel island of adjacent light-emitting units through a corresponding imaging part is positioned at a focal plane of the lens unit so that the light rays emitted by the pixel island are collimated to enter human eyes and form a complete second virtual image at an infinite distance from the human eyes;
light that other pixel islands of adjacent luminescence unit sent is located through the first virtual image that the formation of image portion that corresponds formed respectively the one time focus of lens unit is in order to make the light that each pixel island sent get into people's eye and form complete second virtual image respectively in different positions department apart from people's eye.
In a specific embodiment, the light emitting unit includes a first pixel island, a second pixel island, a third pixel island and a fourth pixel island, the imaging array includes a microlens array, the imaging unit includes microlens units corresponding to the light emitting units one by one, the imaging section includes microlenses, focal lengths of the microlenses are different, the microlens units include a first microlens corresponding to the first pixel island, a second microlens corresponding to the second pixel island, a third microlens corresponding to the third pixel island, and a fourth microlens corresponding to the fourth pixel island, wherein
First light rays emitted by first pixel islands of adjacent light emitting units are positioned at a focal plane of the lens unit through a first virtual image formed by corresponding first micro lenses, the first light rays form first collimated light rays through the lens unit and enter human eyes, and a complete second virtual image is formed at a position infinitely distant from the human eyes, wherein included angles of the first collimated light rays formed by the first light rays of the first pixel islands of the adjacent light emitting units through the centers of the first micro lenses are the same;
a first virtual image formed by second light rays emitted by second pixel islands of adjacent light emitting units through corresponding second micro lenses is positioned in one-time focal length of the lens units, and the second light rays enter human eyes through the lens units and form a complete second virtual image at a position away from the human eyes by a first distance;
a first virtual image formed by third light rays emitted by third pixel islands of adjacent light emitting units through corresponding third micro lenses is positioned in one-time focal length of the lens units, and the third light rays enter human eyes through the lens units and form a complete second virtual image at a position at a second distance from the human eyes;
fourth light that fourth pixel island of adjacent luminescence unit sent is located through the first virtual image that the fourth microlens that corresponds formed lens unit's a double focal length, fourth light warp lens unit gets into people's eye and forms complete second virtual image in the position department apart from people's eye third distance.
In a specific embodiment, the focal length of the first microlens is smaller than the focal length of the second microlens, the focal length of the second microlens is smaller than the focal length of the third microlens, and the focal length of the third microlens is smaller than the focal length of the fourth microlens;
the first distance is greater than the second distance, which is greater than the third distance.
In a specific embodiment, the imaging array includes a flat plate layer, and a microlens array disposed on a side of the flat plate layer away from the light emitting devices, the imaging unit includes microlens units corresponding to the light emitting units one by one, and the imaging section includes microlenses.
In a specific embodiment, the plate layer is a liquid crystal plate layer, the imaging unit further includes liquid crystal plate units corresponding to the light emitting units one by one, the imaging portion further includes a liquid crystal plate portion, focal lengths of the microlenses are the same or different, and the liquid crystal plate portions adjust liquid crystal turns therein in response to a loaded voltage to change optical paths of light rays emitted from the corresponding pixel islands, so that optical paths of light rays incident to different microlenses are different.
In one embodiment, the microlenses are liquid crystal microlenses, and the focal lengths are adjusted in real time in response to the applied voltage so that the focal lengths of the individual microlenses of the microlens unit are different.
In a specific embodiment, the micro lens is one of a PMMA lens, a liquid crystal lens and a glass lens.
In a specific embodiment, each microlens of the microlens array is made of the same material, has the same aperture and has the same period;
and/or
The lens unit is one of a single-chip lens, a multi-chip lens, a spherical mirror, an aspherical mirror and a free-form surface mirror, and the lens unit is made of PMMA or optical glass.
In a specific embodiment, the light emitting device is a liquid crystal display device including a first substrate and a second substrate oppositely disposedThe material of the first substrate and the material of the second substrate are Si3N4；
Or
The light-emitting device is an electroluminescent diode display device, the electroluminescent diode display device comprises a substrate, and the substrate is made of glass or transparent PMMA plastic.
A second embodiment of the invention provides augmented reality glasses comprising the near-eye display device of any one of the first embodiments.
A third embodiment of the present invention provides a method of using a near-eye display device as described in any of the first embodiments, comprising:
each imaging part of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image;
the lens unit images the first virtual images formed by the imaging parts respectively so that light rays emitted by the pixel islands enter human eyes and form complete second virtual images at different positions away from the human eyes respectively.
In a specific embodiment, the light emitting unit includes a first pixel island, a second pixel island, a third pixel island, and a fourth pixel island, the imaging array includes a microlens array, the imaging unit includes microlens units corresponding to the light emitting units one by one, the imaging section includes microlenses, each of which has a different focal length, the microlens unit includes a first microlens corresponding to the first pixel island, a second microlens corresponding to the second pixel island, a third microlens corresponding to the third pixel island, and a fourth microlens corresponding to the fourth pixel island,
the imaging portions of the imaging units of the imaging array image light rays emitted from the pixel islands of the light emitting units of the corresponding light emitting device and form a first virtual image further includes:
first virtual images formed by first light rays emitted by first pixel islands of adjacent light emitting units through corresponding first micro lenses are positioned at the focal planes of the lens units,
a first virtual image formed by second light rays emitted by second pixel islands of adjacent light-emitting units through corresponding second microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by third light rays emitted by third pixel islands of adjacent light-emitting units through corresponding third microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by fourth light rays emitted by fourth pixel islands of adjacent light emitting units through corresponding fourth micro lenses is positioned in one-time focal length of the lens unit;
the first virtual image that lens unit formed each formation of image portion forms respectively so that the light that each pixel island sent gets into people's eye and forms complete second virtual image respectively in the different positions department of distance people's eye further includes:
the first light forms first collimated light through the lens units, the first collimated light enters human eyes and forms a complete second virtual image at an infinite distance from the human eyes, wherein included angles of the first collimated light formed by the first light passing through the centers of the first micro lenses of the first pixel islands of adjacent light-emitting units are the same,
the second light ray enters the human eye through the lens unit and forms a complete second virtual image at a position with a first distance from the human eye,
the third light ray enters the human eye through the lens unit and forms a complete second virtual image at a position at a second distance from the human eye,
the fourth light enters human eyes through the lens unit and forms a complete second virtual image at a position which is a third distance away from the human eyes;
wherein the focal length of the first microlens is smaller than that of the second microlens, the focal length of the second microlens is smaller than that of the third microlens, and the focal length of the third microlens is smaller than that of the fourth microlens; the first distance is greater than the second distance, which is greater than the third distance.
In a specific embodiment, the imaging array comprises a flat plate layer and a micro lens array arranged on the side of the flat plate layer far away from the light-emitting device, the imaging unit comprises micro lens units corresponding to the light-emitting units one by one, and the imaging part comprises micro lenses;
the flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, focal lengths of the microlenses are the same or different, and before the imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different;
or
The flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, the microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes:
each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different;
adjusting a focal length in real time in response to the applied voltage so that focal lengths of respective microlenses of the microlens unit are different;
or
The microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: adjusting the focal length in real time in response to the applied voltage so that the focal lengths of the respective microlenses of the microlens unit are different.
The invention has the following beneficial effects:
aiming at the existing problems, the invention provides a near-eye display device, augmented reality glasses and a using method, wherein different imaging parts are adopted to form first virtual images at different positions, and after the lens unit images the first virtual images, light rays emitted by each pixel island enter human eyes at the same angle to form a plurality of groups of optical paths from a light-emitting device-an imaging array-the lens unit to the human eyes, so that imaging is carried out at different positions away from the human eyes to realize multi-focal-plane imaging, the conflict of accommodation regulation of visual convergence is solved, the requirement of resolution ratio is not required to be considered, the aperture of a micro lens is not limited, the imaging quality of images is ensured, the weight is light, the use is convenient, and the application prospect is wide.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a near-eye display device according to an embodiment of the invention;
FIG. 2 shows a schematic view of a microlens and pixel island according to one embodiment of the invention;
FIG. 3 shows a schematic image stitching diagram of a near-eye display device according to an embodiment of the present invention;
FIG. 4 illustrates a near-eye display device implementing a field-of-view continuation diagram according to one embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a near-eye display device according to another embodiment of the invention;
FIG. 6 is a schematic diagram of a liquid crystal panel layer according to another embodiment of the present invention;
fig. 7 shows a flow chart of a method of using the near-eye display device according to another embodiment of the invention.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
It is noted that references herein to "on … …", "formed on … …" and "disposed on … …" can mean that one layer is formed or disposed directly on another layer or that one layer is formed or disposed indirectly on another layer, i.e., there is another layer between the two layers. As used herein, unless otherwise specified, the term "on the same layer" means that two layers, components, members, elements or portions can be formed by the same patterning process, and the two layers, components, members, elements or portions are generally formed of the same material.
In real life, human eyes can automatically focus on one object, and other objects can be blurred. When people use the VR or AR device, no matter how far an object is seen in the VR device, we focus on the screen, i.e. the same distance. That is, the depth of focus produced by lens accommodation is always fixed on the display screen, and the depth of convergence produced by eye movement varies with the spatial position of the 3D object, which causes the depth of focus to be inconsistent with the depth of convergence, resulting in a vergence accommodation conflict, thereby causing visual fatigue.
In order to solve the problem of convergence and adjustment conflict, one of the conventional common solutions is to use a plurality of display screens to realize multi-focal-plane display, but the volume of the device becomes huge with the increase of the number of flat panel displays, so that the device is inconvenient to use and the cost is correspondingly increased; the second is a Micro-lens array (Micro-lens array) light field display technique, but this technique can seriously degrade the imaging quality of the image.
In order to solve the above-described problems, as shown in fig. 1 and 2, an embodiment of the present invention provides a near-eye display device including:
a light emitting device 10, including a plurality of repeated light emitting units 101 arranged in an array, each light emitting unit including a plurality of pixel islands, each pixel island including a plurality of pixels, wherein each pixel island corresponds to a tiny display screen, and the plurality of pixel islands can be arranged according to the viewing requirements of eyes;
an imaging array 20 including imaging units corresponding to the light emitting units one to one, each imaging unit including imaging portions corresponding to the pixel islands one to one, each imaging portion imaging light rays emitted by the corresponding pixel island and forming first virtual images at different positions; and
and the lens unit 30 is used for respectively imaging the first virtual images formed by the imaging parts of the imaging array so that the light rays emitted by the pixel islands enter human eyes and respectively form complete second virtual images at different positions away from the human eyes.
The near-to-eye display device provided by the embodiment forms the first virtual images at different positions by adopting different imaging parts, the lens unit forms images of the first virtual images, light rays emitted by each pixel island enter human eyes at the same angle, a plurality of groups of optical paths from the light-emitting device-imaging array-lens unit to the human eyes are formed, imaging at different positions away from the human eyes is realized by multi-focal-plane imaging, the problem of convergence of vision adjustment conflict is solved, the requirement of resolution ratio is not required to be considered, and the aperture of a micro lens is not limited, the imaging quality of images is ensured, the weight is light, and the use is facilitated.
To better explain how the present application guarantees the imaging quality of the image while solving the convergence-of-vision conflict problem, as shown in fig. 2, the light emitting unit 101 includes a first pixel island 1011, a second pixel island 1012, a third pixel island 1013, and a fourth pixel island 1014, the imaging array 20 includes a microlens array, the imaging unit includes microlens units 201 corresponding to the light emitting units one by one, the imaging part includes microlenses, the focal lengths of the microlenses are different, the microlens unit 201 includes a first microlens 2011 corresponding to the first pixel island, a second microlens 2012 corresponding to the second pixel island, a third microlens 2013 corresponding to the third pixel island, and a fourth microlens 2014 corresponding to the fourth pixel island, wherein the first microlens 2011 corresponds to the first pixel island, the second microlens 2012 corresponds to the second pixel island, the third microlens 2013 corresponds to the third pixel island, and the fourth microlens 2014 corresponds to the fourth pixel island
First light that first pixel island of adjacent luminescence unit sent is located through the first virtual image that the first microlens that corresponds formed the focal plane department of lens unit, first light warp the lens unit forms first collimation light and gets into people's eye and forms complete second virtual image in the infinite department of distance people's eye, and wherein, first pixel island process of adjacent luminescence unit the angle of the contained angle of the first collimation light that first light at first microlens center formed is the same.
In this embodiment, each first pixel island displays a part of an image, and for example, the images of the first pixel islands of the first light emitting unit and the second light emitting unit are displayed in a tiled manner, and the first light emitting unit is adjacent to the second light emitting unit. After refraction of corresponding first micro lenses, first light rays emitted by each point on a first pixel island of a first light-emitting unit form a first virtual image located at a focal plane of the lens unit, and the lens unit images the first virtual image so that a plurality of first light rays emitted by the first pixel island of the first light-emitting unit form first collimated light rays through the lens unit and enter human eyes; simultaneously, the first light that each point was launched on the first pixel island of the second luminescence unit adjacent with first luminescence unit forms after the refraction that corresponds first microlens and is located the first virtual image of focal plane department of lens unit, lens unit form images so that the first light warp that the first pixel island of first luminescence unit sent the lens unit forms first collimation light and gets into the people's eye.
It should be understood that in practical applications, a tiled display may be made with more first pixel islands. As shown in fig. 3, two first pixel islands of adjacent light emitting units are tiled to form a "BOE" pattern, the first pixel island of the first light emitting unit displays a part of the inverted letter "B" and the inverted letter "O", and the first pixel island of the second light emitting unit displays another part of the inverted letter "O" and the inverted letter "E". The angle of the topmost pixel of the first pixel island of the first light-emitting unit entering human eyes after being imaged by the first micro lens is the same as the angle of the bottommost pixel of the first pixel island of the second light-emitting unit entering human eyes after being imaged by the first micro lens, so that the letter O is spliced. In this embodiment, the light emitted from the first pixel island of the first light-emitting unit falls on the a region of human eyes after being imaged by the first microlens, and the light emitted from the first pixel island of the second light-emitting unit falls on the B region of human eyes after being imaged by the first microlens, so as to splice into a positive "BOE" pattern. It should be noted that those skilled in the art should understand that fig. 3 is only used to explain the tiled display principle of adjacent pixel islands, and does not include a lenticular element.
As shown in fig. 4, a plurality of adjacent chief rays (first rays passing through the center of the corresponding first microlens) emitted by different light emitting units with the same angular interval of α form a first collimated ray with an incident angle range of α after passing through the microlenses and the lens units, and enter the human eye, for example, the imaging field angle of the first pixel island of the first light emitting unit passing through the first microlens and the lens unit is-2 ° to 2 °, the imaging field angle of the first pixel of the second light emitting unit passing through the first microlens and the lens unit is 2 ° to 6 °, and the imaging field angle of the first pixel of the third light emitting unit passing through the first microlens and the lens unit is 6 ° to 10 °, so as to achieve continuity of the field of view. It will be appreciated that the distance between a first pixel island and a corresponding first microlens does not exceed the focal length of the first microlens, such that light emitted by the first pixel island impinges on the first microlens before the image displayed by the first pixel island forms an enlarged first virtual image on the side of the first pixel island remote from the first microlens. The distance between the pixel island and the microlens is the vertical distance from the pixel island to the microlens.
In this embodiment, the shapes of the first pixel island, the second pixel island, the third pixel island, and the fourth pixel island are not particularly limited, and the shapes of the first pixel island, the second pixel island, the third pixel island, and the fourth pixel island may be a circle, a square, a hexagon, or the like. The first, second, third and fourth pixel islands may emit light of a plurality of different colors, wherein each pixel island includes a plurality of pixels of a single color or multiple colors, and the colors of the pixels may be red, blue and green. Each Light Emitting device is an OLED (Organic Light-Emitting Diode) device or a micro-LED (micro-Light-Emitting Diode) device.
Taking the first pixel island as an example, when the pixel color of the first pixel island is multicolor, the target image to be displayed may be regarded as a superposition of a red component image, a green component image, and a blue component image, when the near-eye display device performs display, each red pixel displays a part of the red component image, each green pixel displays a part of the green component image, and each blue pixel displays a part of the blue component image. The images displayed by all the red pixels can be spliced to form a red component image, the images displayed by all the green pixels can be spliced to form a green component image, the images displayed by all the blue pixels can be spliced to form the blue component image, and the red component image, the blue component image and the green component image are superposed on the retina of human eyes to form a complete target image.
In a specific embodiment, in order to enable the light of the pixel islands to enter the human eye through the micro lens, the micro lens is one of a PMMA lens, a liquid crystal lens and a glass lens. Since the mass of PMMA is small, when PMMA is used as the material of the microlens, it is advantageous to reduce the weight of the near-eye display device.
The micro lenses of the micro lens array are made of the same material, have the same aperture and the same period, so that the micro lenses are tightly connected.
In the present embodiment, the shape of the microlens is not particularly limited, and the shape of the microlens may be circular, square, hexagonal, or the like. This embodiment will be described by taking the microlens as a circular shape. Wherein the diameter of the micro lens is between 30 μm and 10mm, for example, the diameter of the micro lens is 500 μm or 1mm or 2 mm. The distance between two adjacent microlenses in the same row and the distance between two adjacent microlenses in the same column are both between 0 and 10mm, for example, 500 μm or 1mm or 2 mm.
In another specific embodiment, the lens unit is one of a single-chip lens, a multi-chip lens, a spherical mirror, an aspherical mirror, and a free-form surface mirror to realize secondary imaging for imaging the microlens array. Wherein the material of the lens unit is PMMA or optical glass.
It should be noted that, in the present application, the microlens and the lens unit are not particularly limited, and may be any combination of the above embodiments, so as to implement multi-focal-plane imaging of the light emitting device as a design criterion, which is not described herein again.
In an alternative embodiment, the light emitting device is a liquid crystal display device, the liquid crystal display device comprises a first substrate and a second substrate which are oppositely arranged, and the material of the first substrate and the material of the second substrate are Si3N4。
In this embodiment, a liquid crystal display device is used as a light emitting device, and gray scale display of each pixel is adjusted by adjusting a voltage of a pixel electrode loaded on liquid crystal and a voltage of a common electrode loaded on liquid crystal; this example uses Si3N4As a material for the liquid crystal substrate.
In an alternative embodiment, the light emitting device is an electroluminescent diode display device, and the electroluminescent diode display device comprises a substrate made of glass or transparent PMMA plastic.
In this embodiment, considering that the mass of PMMA is small, the use of PMMA for the substrate is advantageous for reducing the weight of the near-eye display device.
In this embodiment, considering that the closer the imaging distance is, the larger the focal length is, the focal length of the first microlens is smaller than that of the second microlens, the focal length of the second microlens is smaller than that of the third microlens, and the focal length of the third microlens is smaller than that of the fourth microlens, so that a first virtual image formed by second light rays emitted by second pixel islands of adjacent light emitting units through the corresponding second microlenses is located within one-time focal length of the lens units, and the second light rays enter human eyes through the lens units and form a complete second virtual image at a position at a first distance from the human eyes, for example, at a position at 2 meters from the human eyes;
third light rays emitted by third pixel islands of adjacent light emitting units pass through corresponding third micro lenses to form first virtual images, the first virtual images are located within one-time focal length of the lens units, the third light rays enter human eyes through the lens units and form complete second virtual images at positions which are at a second distance from the human eyes, and for example, the complete second virtual images are formed at positions which are 1m away from the human eyes;
fourth light that fourth pixel island of adjacent luminescence unit sent is located through the first virtual image that the fourth microlens that corresponds formed lens unit's a focus, fourth light warp lens unit gets into people's eye and forms complete second virtual image in the position department apart from people's eye third distance, for example forms complete second virtual image in the position department apart from people's eye 500 millimeters.
It should be noted that the principle and the stitching principle of the second pixel island, the third pixel island, and the first pixel island provided in this embodiment are similar to those of the first pixel island, except that the focal lengths of the first microlens, the second microlens, the third microlens, and the fourth microlens are different, so that multi-focal-plane imaging is achieved, and other relevant parts may refer to the above description, and are not described herein again.
In view of the spacing between the light emitting elements and the imaging array, in an alternative embodiment, the imaging array includes a slab layer disposed between the light emitting devices and the microlens array.
In this embodiment, the imaging array includes a plate layer for defining a space between the light emitting unit and the imaging array, thereby improving structural stability of the near-eye display device, and a microlens array disposed on a side of the plate layer away from the light emitting device.
In the above embodiment, because the spatial position is limited, only the conversion that each light emitting unit includes four pixel islands and each imaging unit includes four microlenses as described in fig. 2 can be realized, that is, 4 focal planes are imaged, the focal length of each microlens is manufactured according to the preset focal length in the specific manufacturing process, and once processed, the focal length cannot be changed.
In order to realize more focal plane imaging, on the basis of the above embodiment, in an optional embodiment, the flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes liquid crystal flat plate units corresponding to the light emitting units one by one, the imaging section further includes a liquid crystal flat plate portion, focal lengths of the microlenses are the same, and the liquid crystal flat plate portion adjusts liquid crystal turning inside the liquid crystal flat plate portion in response to a loaded voltage to change optical paths of light rays emitted from the corresponding pixel islands, so that optical paths of light rays incident to different microlenses are different.
In this embodiment, the structure of the near-eye display device is as shown in fig. 5, the schematic view of each liquid crystal flat plate portion is as shown in fig. 6, different liquid crystal flat plate portions have different liquid crystal turning directions according to the applied voltage, and light rays emitted from each liquid crystal flat plate portion have different optical paths, so that the light rays emitted from each pixel island respectively enter human eyes through the corresponding micro lenses due to the different optical paths and respectively form complete second virtual images at different positions from the human eyes.
The near-to-eye display device provided by the embodiment enables light rays emitted by each pixel island to have different optical distances by adopting the liquid crystal flat plate part, although the focal lengths of the microlenses are the same, the first virtual images can still be formed at different positions, and after the lens unit images the first virtual images, the light rays emitted by each pixel island enter human eyes at the same angle, so that multiple groups of optical paths from the light-emitting device, the liquid crystal flat plate layer, the microlenses and the lens unit to the human eyes are formed, imaging is performed at different positions away from the human eyes to realize multi-focal-plane imaging, the requirements of resolution and the apertures which are not limited by the microlenses are not needed to be considered while the visual convergence adjustment conflict is solved, the imaging quality of images is ensured, the weight is light, and the use is convenient.
In another embodiment, the plate layer is a liquid crystal plate layer, the imaging unit further includes liquid crystal plate units corresponding to the light emitting units one by one, the imaging portion further includes a liquid crystal plate portion, focal lengths of the microlenses are different, and the liquid crystal plate portions adjust liquid crystal turns therein in response to a loaded voltage to change optical paths of light rays emitted from the corresponding pixel islands, so that optical paths of light rays incident to different microlenses are different.
The near-to-eye display device provided by this embodiment enables light rays emitted by each pixel island to form the first virtual image at different positions due to the microlenses with different optical lengths and different focal lengths by using the liquid crystal flat plate portion and the microlenses with different focal lengths. For example, different liquid crystal flat plate portions have different liquid crystal turning directions according to the applied voltage, and light rays emitted from the liquid crystal flat plate portions have different optical paths before entering the micro lens; meanwhile, the microlenses are the first microlens, the second microlens, the third microlens and the fourth microlens in the foregoing embodiments, and each microlens has a different focal length, so as to further change the optical path of the emergent light of the corresponding pixel island. Specifically, after the lens unit images the first virtual image, light rays emitted by each pixel island enter human eyes at the same angle, and a plurality of groups of optical paths from the light-emitting device, the liquid crystal flat plate layer, the micro lens and the lens unit to the human eyes are formed, so that imaging is performed at different positions of the human eyes to realize multi-focal-plane imaging, the conflict of accommodation convergence adjustment is solved, the requirement of resolution ratio is not required to be considered, the aperture of the micro lens is not limited, the imaging quality of images is guaranteed, the weight is light, and the use is convenient.
It should be noted that the two embodiments described above differ in that the first embodiment only changes the liquid crystal turning of different liquid crystal panel portions of the liquid crystal panel layer to make the outgoing light have different optical paths, that is, the light with different optical paths passes through the microlenses with the same focal length and then forms the first virtual image at different positions; in the second embodiment, the liquid crystal steering of different liquid crystal flat plate parts of the liquid crystal flat plate layer is changed, so that emergent light rays have different optical paths, and meanwhile, the light rays with different optical paths form first virtual images at different positions after passing through micro-lenses with different focal lengths; the present application is not specifically limited to this, and a person skilled in the art should select an appropriate setting according to actual application requirements to implement that light rays emitted by different pixel islands form first virtual images at different positions through corresponding imaging portions, which is not described herein again.
In an alternative embodiment, the imaging array includes a microlens array, the imaging unit includes microlens units corresponding to the light emitting units one by one, the imaging section includes microlenses, focal lengths of the respective microlenses are different,
the micro lenses are liquid crystal lenses, and the focal lengths are adjusted in real time in response to the loaded voltage so that the focal lengths of the micro lenses of the micro lens unit are different.
In the embodiment, different microlenses have different focal lengths by controlling the voltage applied to each liquid crystal lens, so that light emitted from each pixel island is imaged at different positions. This embodiment is just through the focus of each microlens of real time control in order to realize the multi-focal plane demonstration promptly, need not to use dull and stereotyped layer or the dull and stereotyped layer of liquid crystal, need not to consider the demand of resolution ratio and not be limited by the bore of microlens when having solved the convergence of vision and adjusting conflict, has guaranteed the imaging quality of image, still can real-time adjustment, satisfies multiple application demand, light in weight facilitates the use.
In an optional embodiment, the plate layer is a liquid crystal plate layer, the imaging unit further includes liquid crystal plate units corresponding to the light emitting units one by one, and the imaging part further includes liquid crystal plate portions, each of which adjusts liquid crystal turn inside in response to a loaded voltage to change optical paths of light rays emitted from corresponding pixel islands, so that optical paths of light rays incident to different microlenses are different; the micro lenses are liquid crystal micro lenses, and the focal lengths are adjusted in real time in response to the loaded voltage so that the focal lengths of the micro lenses of the micro lens unit are different.
The near-to-eye display device provided by this embodiment further adjusts different optical paths of the light emitted by each pixel island by using the liquid crystal flat plate part capable of changing the optical path of the light and the liquid crystal micro lens capable of changing the focal length, so that the light emitted by each pixel island forms a first virtual image at different positions.
Specifically, on one hand, different liquid crystal plate parts are utilized to have different liquid crystal steering directions according to the loaded voltage, so that light rays emitted from the liquid crystal plate parts have different optical paths before entering the micro lens; on the other hand, different microlenses have different focal lengths by controlling the voltages loaded on the liquid crystal lenses, so that the light rays emitted by the pixel islands are imaged at different positions under the common control.
In this embodiment, after the lens unit images the first virtual image, light rays emitted by each pixel island enter human eyes at the same angle, and a plurality of groups of optical paths from the light emitting device, the liquid crystal flat plate layer, the liquid crystal microlens, the lens unit and the human eyes are formed, so that imaging is performed at different positions of the human eyes to realize multi-focal-plane imaging, and the adjustment range of the multi-focal-plane is effectively increased; the method solves the conflict of convergence adjustment of visual convergence, does not need to consider the requirement of resolution and is not limited by the caliber of the micro lens, ensures the imaging quality of the image, and has light weight and convenient use.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
Another embodiment of the present invention further provides augmented reality glasses, including the near-eye display device.
In this embodiment, the augmented reality glasses may be an augmented reality head-mounted display, or may be another device having a near-eye display function.
Corresponding to the near-eye display device provided in the foregoing embodiment, as shown in fig. 7, an embodiment of the present application further provides a using method using the near-eye display device, including:
each imaging part of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image;
the lens unit images the first virtual images formed by the imaging parts respectively so that light rays emitted by the pixel islands enter human eyes and form complete second virtual images at different positions away from the human eyes respectively.
The method for using the near-eye display device provided by the embodiment, the near-eye display device provided by the embodiment forms the first virtual images at different positions by adopting different imaging parts, and after the lens unit images the first virtual images, light rays emitted by each pixel island enter human eyes at the same angle, and a plurality of groups of optical paths from the light emitting device-imaging array-lens unit to the human eyes are formed, so that multi-focal-plane imaging is realized by imaging at different positions away from the human eyes, the conflict of accommodation vergence adjustment is solved, the requirement of resolution is not required to be considered and the aperture of the micro-lens is not limited, the imaging quality of images is ensured, the weight is light, and the use is convenient.
In a specific embodiment, the light emitting unit includes a first pixel island, a second pixel island, a third pixel island, and a fourth pixel island, the imaging array includes a microlens array, the imaging unit includes microlens units corresponding to the light emitting units one by one, the imaging section includes microlenses, each of which has a different focal length, the microlens unit includes a first microlens corresponding to the first pixel island, a second microlens corresponding to the second pixel island, a third microlens corresponding to the third pixel island, and a fourth microlens corresponding to the fourth pixel island,
the imaging portions of the imaging units of the imaging array image light rays emitted from the pixel islands of the light emitting units of the corresponding light emitting device and form a first virtual image further includes:
first virtual images formed by first light rays emitted by first pixel islands of adjacent light emitting units through corresponding first micro lenses are positioned at the focal planes of the lens units,
a first virtual image formed by second light rays emitted by second pixel islands of adjacent light-emitting units through corresponding second microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by third light rays emitted by third pixel islands of adjacent light-emitting units through corresponding third microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by fourth light rays emitted by fourth pixel islands of adjacent light emitting units through corresponding fourth micro lenses is positioned in one-time focal length of the lens unit;
the first virtual image that lens unit formed each formation of image portion forms respectively so that the light that each pixel island sent gets into people's eye and forms complete second virtual image respectively in the different positions department of distance people's eye further includes:
the first light forms first collimated light through the lens units, the first collimated light enters human eyes and forms a complete second virtual image at an infinite distance from the human eyes, wherein included angles of the first collimated light formed by the first light passing through the centers of the first micro lenses of the first pixel islands of adjacent light-emitting units are the same,
the second light ray enters the human eye through the lens unit and forms a complete second virtual image at a position with a first distance from the human eye,
the third light ray enters the human eye through the lens unit and forms a complete second virtual image at a position at a second distance from the human eye,
the fourth light enters human eyes through the lens unit and forms a complete second virtual image at a position which is a third distance away from the human eyes;
wherein the focal length of the first microlens is smaller than that of the second microlens, the focal length of the second microlens is smaller than that of the third microlens, and the focal length of the third microlens is smaller than that of the fourth microlens; the first distance is greater than the second distance, which is greater than the third distance.
In this embodiment, the first microlens, the second microlens, the third microlens, and the fourth microlens have fixed focal lengths, that is, 4 focal planes are imaged by different focal lengths of the microlenses. In other words, the focal length of each microlens is made to be the preset focal length in the specific manufacturing process according to the spatial position limitation, and once processed, the focal length cannot be changed.
In an alternative embodiment, the imaging array includes a flat plate layer, and a microlens array disposed on a side of the flat plate layer away from the light emitting devices, the imaging unit includes microlens units corresponding to the light emitting units one by one, and the imaging section includes microlenses;
the flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, focal lengths of the microlenses are the same or different, and before the imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different.
In this embodiment, different optical paths of the light emitted by each pixel island are adjusted by using a liquid crystal flat plate part capable of changing the optical path of the light and microlenses with the same or different focal lengths, so that the light emitted by each pixel island forms a first virtual image at different positions.
In an alternative embodiment, the imaging array includes a flat plate layer, and a microlens array disposed on a side of the flat plate layer away from the light emitting devices, the imaging unit includes microlens units corresponding to the light emitting units one by one, and the imaging section includes microlenses;
the flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, the microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes:
each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different;
adjusting the focal length in real time in response to the applied voltage so that the focal lengths of the respective microlenses of the microlens unit are different.
In this embodiment, different optical paths of the light emitted by each pixel island are adjusted by using the liquid crystal flat plate part capable of changing the optical path of the light and the liquid crystal micro lens capable of changing the focal length, so that the light emitted by each pixel island forms a first virtual image at different positions.
In an alternative embodiment, the imaging array includes a flat plate layer, and a microlens array disposed on a side of the flat plate layer away from the light emitting devices, the imaging unit includes microlens units corresponding to the light emitting units one by one, and the imaging section includes microlenses;
the microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: adjusting a focal length in real time in response to the applied voltage such that focal lengths of respective microlenses of the microlens unit are different
In this embodiment, different optical lengths of the light emitted by each pixel island are adjusted by the liquid crystal micro lens capable of changing the focal length, so that the light emitted by each pixel island forms a first virtual image at different positions.
Since the use method of the near-eye display device provided in the embodiment of the present application corresponds to the near-eye display devices provided in the above several embodiments, the foregoing embodiment is also applicable to the liquid crystal screen testing method provided in the embodiment, and the detailed description is not repeated in this embodiment.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (14)
1. A near-eye display device, comprising, in sequential stacked arrangement:
a light emitting device including a plurality of repeated light emitting units arranged in an array, each light emitting unit including a plurality of pixel islands, each pixel island including a plurality of pixels;
the imaging array comprises imaging units which correspond to the light emitting units one by one, each imaging unit comprises imaging parts which correspond to the pixel islands one by one, and each imaging part images the light rays emitted by the corresponding pixel island and forms first virtual images at different positions; and
and the lens unit is used for respectively imaging the first virtual images formed by the imaging parts of the imaging array so as to enable the light rays emitted by the pixel islands to enter human eyes and respectively form complete second virtual images at different positions away from the human eyes.
2. The near-eye display device of claim 1,
a first virtual image formed by light rays emitted by one pixel island of the adjacent light emitting units through the corresponding imaging part is positioned at the focal plane of the lens unit so that the light rays emitted by the pixel island are collimated to enter human eyes and form a complete second virtual image at an infinite distance from the human eyes;
light that other pixel islands of adjacent luminescence unit sent is located through the first virtual image that the formation of image portion that corresponds formed respectively the one time focus of lens unit is in order to make the light that each pixel island sent get into people's eye and form complete second virtual image respectively in different positions department apart from people's eye.
3. The near-eye display device according to claim 1, wherein the light-emitting unit includes a first pixel island, a second pixel island, a third pixel island, and a fourth pixel island, the imaging array includes a microlens array, the imaging unit includes microlens units in one-to-one correspondence with the light-emitting units, the imaging section includes microlenses, each having a different focal length, the microlens units include a first microlens corresponding to the first pixel island, a second microlens corresponding to the second pixel island, a third microlens corresponding to the third pixel island, and a fourth microlens corresponding to the fourth pixel island, wherein
First light rays emitted by first pixel islands of adjacent light emitting units are positioned at a focal plane of the lens unit through a first virtual image formed by corresponding first micro lenses, the first light rays form first collimated light rays through the lens unit and enter human eyes, and a complete second virtual image is formed at an infinite distance from the human eyes, wherein included angles of the first collimated light rays formed by the first light rays of the first pixel islands of the adjacent light emitting units through the centers of the first micro lenses are the same;
a first virtual image formed by second light rays emitted by second pixel islands of adjacent light emitting units through corresponding second micro lenses is positioned in one-time focal length of the lens units, and the second light rays enter human eyes through the lens units and form a complete second virtual image at a position away from the human eyes by a first distance;
a first virtual image formed by third light rays emitted by third pixel islands of adjacent light emitting units through corresponding third micro lenses is positioned in one-time focal length of the lens units, and the third light rays enter human eyes through the lens units and form a complete second virtual image at a position at a second distance from the human eyes;
fourth light that fourth pixel island of adjacent luminescence unit sent is located through the first virtual image that the fourth microlens that corresponds formed lens unit's a double focal length, fourth light warp lens unit gets into people's eye and forms complete second virtual image in the position department apart from people's eye third distance.
4. The near-eye display device of claim 3,
the focal length of the first micro lens is smaller than that of the second micro lens, the focal length of the second micro lens is smaller than that of the third micro lens, and the focal length of the third micro lens is smaller than that of the fourth micro lens;
the first distance is greater than the second distance, which is greater than the third distance.
5. The near-eye display device according to claim 1, wherein the imaging array includes a flat plate layer and a microlens array disposed on a side of the flat plate layer away from the light emitting devices, the imaging unit includes microlens units in one-to-one correspondence with the light emitting units, and the imaging section includes microlenses.
6. The near-to-eye display device of claim 5 wherein the plate layer is a liquid crystal plate layer,
the imaging unit further comprises liquid crystal flat plate units which are in one-to-one correspondence with the light emitting units, the imaging part further comprises liquid crystal flat plate parts, focal lengths of the micro lenses are the same or different, and the liquid crystal flat plate parts adjust liquid crystal steering in the liquid crystal flat plate parts in response to loaded voltage to change optical paths of light rays emitted by the corresponding pixel islands, so that the optical paths of the light rays incident to the different micro lenses are different.
7. The near-eye display device according to claim 5 or 6, wherein the microlenses are liquid crystal microlenses, and the focal lengths are adjusted in real time in response to the applied voltage so that the focal lengths of the respective microlenses of the microlens unit are different.
8. A near-eye display device as claimed in any one of claims 3-5 wherein the micro-lens is one of a PMMA lens, a liquid crystal lens and a glass lens.
9. The near-eye display device of any one of claims 3-6,
the micro lenses of the micro lens array are made of the same material, have the same aperture and have the same period;
and/or
The lens unit is one of a single-chip lens, a multi-chip lens, a spherical mirror, an aspherical mirror and a free-form surface mirror, and the lens unit is made of PMMA or optical glass.
10. The near-eye display device of any one of claims 1-6,
the light-emitting device is a liquid crystal display device which comprises a first substrate and a second substrate which are oppositely arranged, wherein the first substrate and the second substrate are made of Si3N4；
Or
The light-emitting device is an electroluminescent diode display device, the electroluminescent diode display device comprises a substrate, and the substrate is made of glass or transparent PMMA plastic.
11. Augmented reality glasses comprising a near-eye display device according to any one of claims 1-10.
12. A method of using the near-eye display device of any one of claims 1-10, comprising:
each imaging part of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image;
the lens unit images the first virtual images formed by the imaging parts respectively so that light rays emitted by the pixel islands enter human eyes and form complete second virtual images at different positions away from the human eyes respectively.
13. The use method according to claim 12, wherein the light emitting unit includes a first pixel island, a second pixel island, a third pixel island, and a fourth pixel island, the imaging array includes a microlens array, the imaging unit includes microlens units corresponding to the light emitting units one by one, the imaging section includes microlenses, each of which has a different focal length, the microlens units include a first microlens corresponding to the first pixel island, a second microlens corresponding to the second pixel island, a third microlens corresponding to the third pixel island, and a fourth microlens corresponding to the fourth pixel island,
the imaging portions of the imaging units of the imaging array image light rays emitted from the pixel islands of the light emitting units of the corresponding light emitting device and form a first virtual image further includes:
first virtual images formed by first light rays emitted by first pixel islands of adjacent light emitting units through corresponding first micro lenses are positioned at the focal planes of the lens units,
a first virtual image formed by second light rays emitted by second pixel islands of adjacent light-emitting units through corresponding second microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by third light rays emitted by third pixel islands of adjacent light-emitting units through corresponding third microlenses is positioned in one focal length of the lens unit,
a first virtual image formed by fourth light rays emitted by fourth pixel islands of adjacent light emitting units through corresponding fourth micro lenses is positioned in one-time focal length of the lens unit;
the first virtual image that lens unit formed each formation of image portion forms respectively so that the light that each pixel island sent gets into people's eye and forms complete second virtual image respectively in the different positions department of distance people's eye further includes:
the first light forms first collimated light through the lens unit, enters human eyes and forms a complete second virtual image at an infinite distance from the human eyes, wherein included angles of the first collimated light formed by the first light passing through the center of the first micro-lens of the first pixel islands of adjacent light-emitting units are the same,
the second light ray enters the human eye through the lens unit and forms a complete second virtual image at a position with a first distance from the human eye,
the third light ray enters the human eye through the lens unit and forms a complete second virtual image at a position at a second distance from the human eye,
the fourth light enters human eyes through the lens unit and forms a complete second virtual image at a position which is a third distance away from the human eyes;
wherein the focal length of the first microlens is smaller than that of the second microlens, the focal length of the second microlens is smaller than that of the third microlens, and the focal length of the third microlens is smaller than that of the fourth microlens; the first distance is greater than the second distance, which is greater than the third distance.
14. The use method according to claim 11, wherein the imaging array comprises a flat plate layer and a microlens array disposed on a side of the flat plate layer away from the light emitting device, the imaging unit comprises microlens units in one-to-one correspondence with the light emitting units, and the imaging section comprises microlenses;
the flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, focal lengths of the microlenses are the same or different, and before the imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different;
or
The flat plate layer is a liquid crystal flat plate layer, the imaging unit further includes a liquid crystal flat plate unit corresponding to the light emitting units one to one, the imaging portion further includes a liquid crystal flat plate portion, the microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes:
each liquid crystal panel part responds to the loaded voltage to adjust the liquid crystal steering in the liquid crystal panel part so as to change the optical path of the light emitted by the corresponding pixel island, so that the optical paths of the light incident to different micro-lenses are different;
adjusting a focal length in real time in response to the applied voltage so that focal lengths of respective microlenses of the microlens unit are different;
or
The microlens is a liquid crystal microlens, and before each imaging portion of each imaging unit of the imaging array images light rays emitted by each pixel island of each light emitting unit of the corresponding light emitting device and forms a first virtual image, the using method further includes: adjusting the focal length in real time in response to the applied voltage so that the focal lengths of the respective microlenses of the microlens unit are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111077855.0A CN113791497A (en) | 2021-09-15 | 2021-09-15 | Near-to-eye display device, augmented reality glasses and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111077855.0A CN113791497A (en) | 2021-09-15 | 2021-09-15 | Near-to-eye display device, augmented reality glasses and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113791497A true CN113791497A (en) | 2021-12-14 |
Family
ID=79183372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111077855.0A Pending CN113791497A (en) | 2021-09-15 | 2021-09-15 | Near-to-eye display device, augmented reality glasses and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113791497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280809A (en) * | 2022-01-06 | 2022-04-05 | 京东方科技集团股份有限公司 | Display module, driving method thereof and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001142059A (en) * | 2000-08-24 | 2001-05-25 | Omron Corp | Image display device |
| CN107402453A (en) * | 2017-09-22 | 2017-11-28 | 京东方科技集团股份有限公司 | A kind of 3D display device |
| CN108919492A (en) * | 2018-07-25 | 2018-11-30 | 京东方科技集团股份有限公司 | A kind of nearly eye display device, system and display methods |
| WO2020113428A1 (en) * | 2018-12-04 | 2020-06-11 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
-
2021
- 2021-09-15 CN CN202111077855.0A patent/CN113791497A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001142059A (en) * | 2000-08-24 | 2001-05-25 | Omron Corp | Image display device |
| CN107402453A (en) * | 2017-09-22 | 2017-11-28 | 京东方科技集团股份有限公司 | A kind of 3D display device |
| CN108919492A (en) * | 2018-07-25 | 2018-11-30 | 京东方科技集团股份有限公司 | A kind of nearly eye display device, system and display methods |
| WO2020113428A1 (en) * | 2018-12-04 | 2020-06-11 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280809A (en) * | 2022-01-06 | 2022-04-05 | 京东方科技集团股份有限公司 | Display module, driving method thereof and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11086131B2 (en) | Near-eye display and near-eye display system | |
| CN111175982B (en) | Near-to-eye display device and wearable equipment | |
| CN106019605B (en) | Nearly eye display device and method | |
| CN106097899B (en) | A kind of display and head-mounted display apparatus | |
| CN101278566B (en) | Improvement of lenticular design by applying light blocking feature | |
| WO2019031443A1 (en) | Stereoscopic display device | |
| CN112987295B (en) | Near-to-eye display device and virtual/augmented reality apparatus | |
| CN111948813A (en) | Head-up display system | |
| US20200218084A1 (en) | Stereoscopic display device, method and apparatus for controlling stereoscopic display device, and storage medium | |
| US20180231792A1 (en) | Display Device | |
| CN106019796A (en) | Projection screen, large-size spliced screen and projection system | |
| WO2019127965A1 (en) | 3d display module | |
| WO2018076775A1 (en) | Display panel and display device | |
| CN111638600B (en) | Near-to-eye display method and device and wearable device | |
| CN113791497A (en) | Near-to-eye display device, augmented reality glasses and using method | |
| CN114967214B (en) | Display device and control method of display device | |
| CN116193904A (en) | Display device and near-to-eye display equipment | |
| CN116300132A (en) | Light field display device | |
| CN112987330A (en) | Integrated stereoscopic image display device | |
| CN115880999B (en) | Display device and near-to-eye display equipment | |
| CN110928034B (en) | Color film substrate, display panel and display device | |
| TWI734640B (en) | Integrated stereoscopic image display device | |
| US20240053514A1 (en) | Near-to-eye display device and wearable apparatus | |
| WO2019211145A1 (en) | A head-mounted device comprising a micro-lens array on its display | |
| TWI716217B (en) | Integrated stereoscopic image display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |