CN110618530A - Novel AR (augmented reality) glasses capable of dynamically adjusting transparency - Google Patents
Novel AR (augmented reality) glasses capable of dynamically adjusting transparency Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G—PHYSICS
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- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
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- Optics & Photonics (AREA)
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Abstract
The invention discloses novel AR (augmented reality) glasses capable of dynamically adjusting transparency, which comprise a glasses frame and lenses, wherein a first display layer and a second display layer are sequentially arranged on the lenses from outside to inside; the novel AR glasses capable of dynamically adjusting the transparency further comprise an image output system installed on the glasses frame, wherein the image output system is used for controlling the glasses to display an image to be displayed, the image to be displayed comprises a color total image layer with color information and a gray total image layer with transparent information, and the image output system comprises a color image output unit, a transparent information image output unit and a signal synchronous processing unit. The invention not only can realize dynamic shading and solve the problem that the display content of the AR glasses is interfered by ambient light, but also solves the defect that the black color in the AR glasses becomes transparent.
Description
Technical Field
The utility model belongs to the technical field of the augmented reality, concretely relates to novel AR glasses that can dynamically adjust transparency.
Background
There are shutter type 3D glasses for watching movies in the market, that is, by controlling the light transmittance of the liquid crystal layer, and by using the liquid crystal layer to alternately block light (in opaque black or dark gray) and transmit light, the left and right eye pictures in the 3D movie are separated frame by frame, and the 3D display effect on the sense is realized.
In the existing optical waveguide display technology applied to the AR glasses, the picture is projected onto a transparent medium, and then the picture is reflected into human eyes through a reflective material embedded in the transparent medium. This technique has two significant disadvantages: one is that the user cannot see black picture information. This is because the transparent medium can only reflect luminance and chrominance information, and if there is black (i.e. no luminance and chrominance information, or the luminance and chrominance information is weak) information in the picture, such black information can only have a transparent effect on the transparent reflective medium. However, black information is also important information that is indispensable for visual recognition, such as an image of a panda, and black parts on the body of the panda have no or only weak luminance and chrominance information. In the actual display effect of the optical waveguide display technology, the black areas of the body and eyes of the panda are changed into transparent colors, so that the black content of the picture is lost, and a user cannot see a black image; and secondly, external ambient light penetrates through the lenses, so that the imaging definition of the glasses is further influenced. Since the medium of the AR display is a transparent spectacle lens, external ambient light must penetrate through the lens to enter human eyes, causing the light of the ambient light and the light of the projection display content to overlap, bringing visual interference, and the stronger the ambient light is, the more serious the interference is caused to the display content. Especially, the display effect is poor under sunlight or light, so that the user experience is influenced, and the use scene of the AR glasses is limited.
In view of the above two disadvantages, the AR glasses available on the market adopt a method of adding a black lens-like light shielding layer on the outside. The technical scheme relieves the problem of unclear pictures caused by the interference of the optical waveguide lens by ambient light to a certain extent, but the definition of the external environment is sacrificed by the global shading method, so that the external light is too dark, and a user can not clearly see the real world when wearing the glasses for going out. Further, even with this scheme, the problem of pure black display is still not solved. In a word, the prior art cannot give consideration to the effect that optical waveguide AR glasses ensure clear imaging of black pictures and guarantee clear external environment.
Disclosure of Invention
An object of this application is to provide a novel AR glasses that can dynamically adjust transparency, not only can realize dynamic shading, solves the problem that the demonstration content of AR glasses receives ambient light to disturb, solves the black defect that becomes transparent in the AR glasses moreover.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
the novel AR glasses capable of dynamically adjusting the transparency comprise a glasses frame and lenses, wherein a first display layer and a second display layer are sequentially arranged on the lenses from outside to inside;
the novel AR glasses capable of dynamically adjusting the transparency further comprise an image output system installed on the glasses frame, wherein the image output system is used for controlling the glasses to display an image to be displayed, the image to be displayed comprises a total color image layer with color information and a total gray image layer with transparent information, and the image output system comprises a color image output unit, a transparent information image output unit and a signal synchronous processing unit;
the color image output unit is used for acquiring a color total image layer of an image to be displayed and projecting the color total image layer onto the second display layer;
the transparent information image output unit is used for acquiring a gray total image layer of an image to be displayed and outputting the gray total image layer to a first display layer for displaying;
the signal synchronization processing unit is used for controlling the color image output unit and the transparent information image output unit to output simultaneously and keeping the frame synchronization of the pictures displayed by the first display layer and the second display layer.
Preferably, the first display layer is a liquid crystal display layer, and the second display layer is an optical waveguide display layer.
Preferably, the first display layer is an electrowetting display layer, and the second display layer is an optical waveguide display layer.
Preferably, the image output system comprises a main control unit, and the color image output unit, the transparent information image output unit and the signal synchronous processing unit are respectively connected with the main control unit;
the main control unit is used for receiving a plurality of layers, each layer contains color information and transparent information, the layers are synthesized into the layers from top to bottom according to the sequence of the layers, the image to be displayed is obtained, the color information of the total color layer of the image to be displayed is synthesized by the color information of the layers, the transparent information of the total gray level layer of the image to be displayed is synthesized by the transparent information of the layers, the main control unit sends the total color layer to the color image output unit, and the total gray level layer is sent to the transparent information image output unit.
Preferably, the main control unit is further configured to receive user setting information, where the user setting information includes a background mode, and the main control unit controls the transparent information image output unit to output an assigned total grayscale layer to the first display layer according to the user setting information, where the assigned total grayscale layer has transparent information corresponding to the background mode.
Preferably, the background mode includes transparent, translucent, opaque.
Preferably, the transparent information is represented by an alpha channel.
Preferably, the main control unit is further configured to calculate and generate an alpha channel according to a display area of the received layer when the layer lacks the alpha channel. Compared with the prior art, the novel AR glasses capable of dynamically adjusting the transparency have the following beneficial effects:
1) the problem that AR glasses display is interfered by transmission of ambient light is solved: based on a lens structure comprising a first display layer and a second display layer, the first display layer is used for displaying images with transparent information, and the light transmittance of each pixel unit is controlled, so that the transparency of the AR glasses is dynamically controlled, and various combined effects such as global shading, local shading, dynamic image shading and the like are realized;
2) the defect that black in AR glasses becomes transparent is solved: the first display layer is used for displaying the gray-scale image with the transparent information, and the problem that projection reflection of AR glasses in the prior art is not black is solved by displaying a plurality of gray scales from black to transparent.
Drawings
Fig. 1 is a schematic structural diagram of the novel AR glasses with dynamically adjustable transparency according to the present application;
FIG. 2 is a schematic structural diagram of an image output system according to the present application;
FIG. 3 is a schematic diagram of an optical waveguide display according to the present application;
FIG. 4 is a schematic diagram of a liquid crystal display according to the present application;
fig. 5 is a schematic diagram of an electrowetting display of the present application.
In the drawings: 1. a mirror frame; 2. a lens; 21. a first display layer; 22. a second display layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The application provides a novel AR glasses that can dynamically adjust transparency, and the transparency that can dynamically adjust AR glasses realizes dynamic shading, avoids the influence of external environment light to AR glasses use, has overcome the unable black defect that shows of AR glasses among the prior art simultaneously.
AR technology, Augmented Reality (AR) is a technology that superimposes computer-generated images over the user's perspective of the real world, providing a composite interactive view of virtual and real.
AR glasses are a carrier that applies the living activity of AR technology, which displays a virtual-to-real image on the lens, providing the wearer with real-time virtual-to-real world interaction.
As shown in fig. 1, in one embodiment, the novel AR glasses capable of dynamically adjusting transparency comprise a frame 1 and a lens 2, wherein the lens 2 is provided with a first display layer 21 and a second display layer 22 in sequence from outside to inside.
In the present embodiment, from the outside to the inside is understood to be from the external scene side to the eyeball side.
As shown in fig. 2, the novel AR glasses capable of dynamically adjusting transparency further include an image output system mounted on the glasses frame, the image output system is configured to control the glasses to display an image to be displayed, the image to be displayed includes a total color layer having color information and a total gray-scale layer having transparent information, and the image output system includes a color image output unit, a transparent information image output unit, and a signal synchronization processing unit.
The color image output unit is configured to obtain a total color image layer of an image to be displayed, and project the total color image layer onto the second display layer 22.
The transparent information image output unit is used for acquiring a total gray level image layer of an image to be displayed and outputting the total gray level image layer to the first display layer 21 for display;
the signal synchronization processing unit is used for controlling the color image output unit and the transparent information image output unit to output simultaneously and keeping the frame synchronization of the pictures displayed by the first display layer 21 and the second display layer 22. In the embodiment, the hardware part consisting of the glasses frame and the lenses is matched with the image output system, the image to be displayed is divided into two parts to be displayed, the influence of the external environment on the image display is avoided by utilizing the matching mode of the gray-scale image with the transparent information and the color image, and meanwhile, the image to be displayed can be completely displayed.
When the color image output unit and the transparent information image output unit continuously output at preset interval time, a dynamic display effect is formed on the first display layer and the second display layer, and real-time interaction of virtual and reality is realized.
In one embodiment, the first display layer 21 is provided as a liquid crystal display layer and the second display layer 22 is provided as an optical waveguide display layer.
As shown in fig. 3, the optical waveguide display layer displays by using the optical waveguide technology, which is based on the principle that a light source inputs a grating on one surface of a waveguide, and light propagates through the waveguide and reaches the human eye through an output grating.
In contrast to AR glasses, the optical waveguide display layer may employ an optical waveguide lens, at each point of the display area of the optical waveguide lens, there is simultaneously both light of the internal image projection information and external real world light passing through it, at which point the internal image projection information is reflected into the human eye, and the external real world light is transmitted into the human eye.
In order to overcome the problem that the optical waveguide lens can only reflect brightness and chrominance information, cannot reflect black and the like, but does not have the brightness and chrominance information, the liquid crystal display layer capable of dynamically adjusting the transmittance of each pixel unit is added outside the optical waveguide display layer, so that the problems that the optical waveguide display layer cannot display black and the display content is easily interfered by external ambient light are solved.
As shown in fig. 4, the liquid crystal display layer displays by using a liquid crystal display technology, and the developing principle of the liquid crystal display technology is to control the brightness of each pixel unit by blocking the light component by the liquid crystal molecules. The twist angle of the liquid crystal molecules is controlled by a Thin Film Transistor (TFT) to control the light passing rate with the same direction, so that the brightness of the light passing through the rear pixel unit is changed, and the display effect is realized with the aid of a polarizer.
For AR glasses, liquid crystal display lenses may be used for the liquid crystal display layer. The technical principle and the design and manufacturing process of the Liquid Crystal Display layer are the same as those of an LCD (Liquid Crystal Display, abbreviated as Chinese name Liquid Crystal Display). The basic structure is that a liquid crystal box is placed between two parallel substrates, an upper substrate is provided with an upper polarizer, a lower substrate is provided with a transparent TFT (transparent thin film transistor) and a lower polarizer, and the rotation direction of liquid crystal molecules is controlled by changing signals and voltage on the TFT, so that the light emergent direction of each pixel unit is controlled, and the effect of adjusting the transparency is achieved.
The liquid crystal display lens adjusts signals and voltage on the TFT according to the transparent information output by the transparent information image output unit, and the effect of displaying images in cooperation with the optical waveguide lens is achieved.
In another embodiment the first display layer 21 is provided as an electrowetting display layer and the second display layer 22 is provided as an optical waveguide display layer. The optical waveguide display layer is described with reference to the previous embodiment.
The electrowetting display layer adopts an electrowetting display technology, the electrowetting technology adopts a strong hydrophobic material as a main functional structure of the display layer, each pixel unit contains transparent water and black ink, the water cannot wet the surface of the strong hydrophobic material under the condition of no electricity, and a water phase and an oil phase are not mutually soluble, so that a double-layer structure on the water under the oil is formed. But when voltage is applied, the wettability of water in the hydrophobic layer can be changed from non-wetting to wetting, and the oil phase is pushed rapidly to change the shape of the hydrophobic layer, so that partial area of the pixel unit shows a transparent effect.
The electrowetting display layer may employ an electrowetting display screen, as opposed to AR glasses. The structure of the electrowetting display layer may be a structure including a transparent electrode, a transparent substrate, a hydrophobic coating, black ink, pixel walls. When no driving voltage is applied to the transparent electrode of a single pixel, as shown in fig. 5(a), the black ink will be spread on the hydrophobic layer, and the color of the ink will be displayed by reflection after external light passes through the water layer to reach the ink; as shown in fig. 5(b), when the driving voltage is applied to the pixel electrode, the ink is pushed to a corner under the wetting tension of water, so that the ink no longer spreads over the entire pixel cell, external light passes through the transparent substrate to reach the human eye, and the electrowetting display layer assumes a transparent state.
The electrowetting display layer adjusts the driving voltage applied to the pixel electrode according to the transparent information output by the transparent information image output unit, so that the effect of transparency in different degrees is presented.
In one embodiment, the transparent information is represented using an alpha channel. When the first display layer is a liquid crystal display layer, the alpha channel adopts a standard 256-level gray scale, the corresponding display effect of white in the alpha channel on the liquid crystal display layer is opaque black, the corresponding display effect of black in the alpha channel on the liquid crystal display layer is transparent, and the corresponding display effect of gray in the alpha channel on the liquid crystal display layer is a corresponding transparency level, so that the effect of dynamically adjusting the transparency of the AR glasses is realized.
When the first display layer is an electrowetting display layer, the electrowetting display screen cannot realize 256-level gray scale at present, and can only realize 64-level gray scale at present. In order to adapt to the gray scale level of the electrowetting display screen, the adopted gray scale level of the alpha channel is sampled and compressed according to the gray scale number of the screen, so that the data volume is reduced, and the computing resources are saved, for example, the gray scale level of the alpha channel is set to 64 levels corresponding to the gray scale level of the electrowetting display screen.
Compare in the liquid crystal display layer, the printing opacity volume of electrowetting display screen can exceed 75%, has higher luminousness to electrowetting display screen has the consumption and is lower, need not to establish the polaroid in addition, and advantages such as frivolous are lighter and thinner, consequently under the prerequisite of reasonable consideration cost of manufacture, the preferred adoption electrowetting display layer of first display layer of this application.
In order to facilitate the control of the units in the image output system, in one embodiment, the image output system includes a main control unit, and the color image output unit, the transparent information image output unit, and the signal synchronization processing unit are respectively connected to the main control unit.
Adopt a main control unit to control a plurality of units work, the harmony between each unit is better, when the demonstration treats the display image, main control unit is used for receiving a plurality of layers, and each layer contains color information and transparent information, synthesizes a plurality of layers from last to lower order according to the layer, obtains treat the display image, the color information that the total picture layer of the color of treating the display image has is synthesized by the color information on a plurality of layers, the transparent information that the total picture layer of the grey scale of treating the display image has is synthesized by the transparent information on a plurality of layers, main control unit sends the total picture layer of color to color image output unit, sends the total picture layer of grey scale to transparent information image output unit.
The image to be displayed is an image generated by a computer and superimposed on the viewing angle of the user to the real world, the layers included in the image to be displayed are determined according to the current viewing angle environment of the real world, and the selection of each layer in the image to be displayed belongs to a general process of the AR technology, which is not repeated in this embodiment. Moreover, the process of synthesizing the plurality of layers by the main control unit is not regarded as an improvement focus of the present application, and can be implemented by using the prior art, for example, the content disclosed in the patent document with the application publication number CN 104010212A.
Generally, when a graphical interface is designed, the generated picture is stored in a png format, and an alpha channel can be reserved in the format, so that the picture used when the AR glasses are superposed generally has the alpha channel, namely transparent information, the synthesized image to be displayed carries complete transparent information, and the transparent information image output unit acquires corresponding transparent information and transmits the transparent information to the first display layer for displaying; if the layer received by the main control unit lacks the alpha channel, the main control unit needs to calculate and generate the alpha channel according to the display area of the layer and then perform layer synthesis, so that the integrity of the transparent information is ensured.
Under the condition that transparency of the first display layer is adjustable, the AR glasses of the application can also realize switching of an AR effect (enhanced display) and a VR effect (virtual display). The main execution operations are: the main control unit is also used for receiving user setting information, the user setting information comprises a background mode, and the main control unit controls the transparent information image output unit to output an appointed gray total layer to the first display layer according to the user setting information, wherein the appointed gray total layer is provided with transparent information corresponding to the background mode.
The designated gray total layer can be pre-stored in the transparent information image output unit or the main control unit and output to the first display layer when the user adjusts the background mode. Certainly, a memory connected with the main control unit can be additionally arranged for storing, so that the occupation of the storage space of the transparent information image output unit or the main control unit is avoided.
The user setting information can be sent out through a touch screen connected with the main control unit, and the user sends out the user setting information with a background mode through the touch screen; the user setting information can also be sent by a physical button connected with the main control unit, the user directly operates the corresponding physical button, and the main control unit acquires the background mode which the user wants to set according to the voltage signal of the physical button.
Generally, the background modes include transparent, semi-transparent and non-transparent, each background mode corresponds to a designated gray total layer, the designated gray total layer has transparent information corresponding to the background mode, and the main control unit adjusts the transparency of each pixel unit of the first display layer according to the transparent information carried by different designated gray total layers, so that various combined effects such as global shading, local shading, dynamic image shading and the like are realized.
Since the transmittance of the lens is affected by the difference of the lens material and the difference of the lens manufacturing process, the transmittance corresponding to the transparency, the translucency and the opacity in the embodiment is determined according to the final transmittance after the lens is molded. In one embodiment, the transparent correspondence in the background mode is set to be the highest transmittance of the molded lens, the opaque correspondence is set to be the lowest transmittance of the molded lens, and the semi-transparent correspondence is set to be the transparent state between the highest transmittance and the lowest transmittance of the molded lens, i.e. the semi-transparent correspondence has a transmittance in a range of values, which can be referred to as semi-transparent.
When the background mode is set to be semitransparent, the first display layer displays a semitransparent state with default transmittance, and in order to realize adjustment in a semitransparent numerical range, a user can increase or decrease the transmittance on the basis of the default transmittance by a touch screen or a physical button according to a set proportion, so that a dynamic shading effect is achieved. Wherein the translucent default transmittance is half the highest transmittance of the molded lens.
The refresh rates of various types of optical waveguide display or laser holographic display modules in the market are different, and the first display layer and the second display layer can achieve a better display effect when keeping the same frame rate and refreshing synchronously. Therefore, signal synchronous output processing is performed in the image output system. And a signal synchronization processing unit is adopted to send out a synchronization signal to control the pictures displayed by the first display layer and the second display layer to keep consistent and be accurately synchronized.
When the first display layer and the second display layer simultaneously display the image, the synchronous refreshing of the first display layer and the second display layer is kept, and the consistency of the display position and the display size of the first display layer and the second display layer is also ensured, so that the dislocation of the images displayed by the first display layer and the second display layer is avoided. Therefore, in one embodiment, the alignment of the pixels of the first display layer and the second display layer is set, the picture displayed by the first display layer is adjusted by taking the display area of the second display layer as a reference, the main control unit sends the preset specification to the transparent information image output unit, the transparent information image output unit adjusts the size of the projection picture according to the preset specification, the projection picture is adjusted to be consistent with the size of the display picture of the second display layer, and the first display layer and the second display layer are set to start to display from the preset pixels, so that the first display layer and the second display layer are visually overlapped.
The novel AR glasses capable of dynamically adjusting transparency of the embodiment adopt the optical waveguide display layer and the liquid crystal display layer or the cooperation of the optical waveguide display layer and the electrowetting display layer to display the image to be displayed in a manner of matching the color image with the transparent information image, so that the defect that black in the AR glasses becomes transparent is overcome, the problem that display of the AR glasses is interfered by ambient light transmission is solved, and the AR glasses have great application significance.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The novel AR glasses capable of dynamically adjusting the transparency are characterized by comprising a glasses frame and lenses, wherein a first display layer and a second display layer are sequentially arranged on the lenses from outside to inside;
the novel AR glasses capable of dynamically adjusting the transparency further comprise an image output system installed on the glasses frame, wherein the image output system is used for controlling the glasses to display an image to be displayed, the image to be displayed comprises a total color image layer with color information and a total gray image layer with transparent information, and the image output system comprises a color image output unit, a transparent information image output unit and a signal synchronous processing unit;
the color image output unit is used for acquiring a color total image layer of an image to be displayed and projecting the color total image layer onto the second display layer;
the transparent information image output unit is used for acquiring a gray total image layer of an image to be displayed and outputting the gray total image layer to a first display layer for displaying;
the signal synchronization processing unit is used for controlling the color image output unit and the transparent information image output unit to output simultaneously and keeping the frame synchronization of the pictures displayed by the first display layer and the second display layer.
2. The novel AR glasses with dynamically adjustable transparency according to claim 1, wherein the first display layer is a liquid crystal display layer and the second display layer is an optical waveguide display layer.
3. The novel AR glasses with dynamically adjustable transparency according to claim 1, wherein the first display layer is an electrowetting display layer and the second display layer is an optical waveguide display layer.
4. The novel AR glasses with dynamically adjustable transparency according to claim 1, wherein the image output system comprises a main control unit, and the color image output unit, the transparent information image output unit and the signal synchronization processing unit are respectively connected with the main control unit;
the main control unit is used for receiving a plurality of layers, each layer contains color information and transparent information, the layers are synthesized into the layers from top to bottom according to the sequence of the layers, the image to be displayed is obtained, the color information of the total color layer of the image to be displayed is synthesized by the color information of the layers, the transparent information of the total gray level layer of the image to be displayed is synthesized by the transparent information of the layers, the main control unit sends the total color layer to the color image output unit, and the total gray level layer is sent to the transparent information image output unit.
5. The novel AR glasses capable of dynamically adjusting transparency according to claim 4, wherein the main control unit is further configured to receive user setting information, the user setting information includes a background mode, and the main control unit controls the transparent information image output unit to output a designated total gray-scale image layer to the first display layer according to the user setting information, the designated total gray-scale image layer has transparent information corresponding to the background mode.
6. The novel dynamically transparency adjustable AR glasses according to claim 5 wherein the background mode comprises transparent, translucent, opaque.
7. The novel AR glasses with dynamically adjustable transparency according to claim 4, wherein the transparency information is represented by an alpha channel.
8. The novel AR glasses with dynamically adjustable transparency according to claim 7, wherein the main control unit is further configured to calculate and generate an alpha channel according to a display area of the received layer when the layer lacks the alpha channel.
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