Near-to-eye display device

Abstract

The invention provides a near-to-eye display device, which relates to the technical field of near-to-eye display and comprises a light source module and an optical module, the light source module comprises a first image source and a second image source; the optical module comprises an S polarizing film, a P polarizing film, a transmission / reflection light splitting MEMS galvanometer, a curved surface reflector, a reflection type S polarizing film, a reflection type P polarizing film, a first waveguide lens and a second waveguide lens. An image source is divided into two areas to cooperate with polarization phases of a transmission / reflection light splitting MEMS galvanometer to output image contents of corresponding rows according to a time sequence, the transmission / reflection light splitting MEMS galvanometer, a reflection type S polarization film and a reflection type P polarization film are combined to separate image information, a picture is spliced through a double-layer waveguide lens, a picture with a large field angle is presented, and the image quality is improved. The field angle of the device can exceed 80 degrees; the waveguide lens is adopted, so that the device is provided with the movable eye frame, an original image is not prone to distortion, the whole device is light and thin, and the thickness can be within 5 mm.

Description

Technical Field

[0001] The present application relates to the field of near-eye display technology, and in particular to a near-eye display device. Background Art

[0002] With the advancement of display technology and people's desire for high technology, near-eye display technology has been widely used in various fields of work and life, including VR (Virtual Reality), AR (Augmented Reality), MR (Mix Reality), etc.

[0003] At present, various types of near-eye display devices are emerging one after another. VR glasses whose image source is located within one focal length of the lens to form an enlarged virtual image are too large, with a thickness of 20 to 80 mm, and there is a noticeable sense of oppression when wearing them on the head; free-form AR glasses have a large field of view but are also large in size, with a thickness of more than 50 mm, while the field of view of small-volume AR glasses is too small, less than 50°; the current imaging method of array optical waveguide AR glasses leads to a particularly small field of view, with a diagonal field of view of no more than 50°; BB (BirdBath) AR glasses do not have any moving eye sockets, and the image will be distorted if the position of the eyes changes slightly. Although the overall volume is not too large, it is not too small, with a minimum thickness of no less than 15 mm; the dispersion and rainbow phenomenon of diffraction optical waveguide AR glasses are currently unresolved problems in the industry. The field of view of existing waveguide AR glasses is limited by the refractive index of the waveguide lens. The light path angle in the waveguide lens must be greater than the critical angle of total reflection of the lens, resulting in the maximum field of view of the 16:9 screen usually only being within 50 degrees. Summary of the invention

[0004] The present application aims to solve one of the above technical problems in the prior art. To this end, an embodiment of the present application provides a near-eye display device.

[0005] The near-eye display device provided in the embodiment of the present application includes: a light source module and an optical module;

[0006] The light source module includes a first image source and a second image source;

[0007] The optical module includes an S polarizing film, a P polarizing film, a transmittance / reflection beam splitting MEMS galvanometer, a curved reflector, a reflective S polarizing film, a reflective P polarizing film, a first waveguide lens, and a second waveguide lens;

[0008] The first image information light emitted by the first image source passes through the S polarizing film to form S polarized image information light, the S polarized image information light passes through the transmittance / reflection beam splitting MEMS galvanometer and then irradiates the curved reflector, and forms collimated S polarized image information light after the refractive action of the curved reflector, the collimated S polarized image information light enters the first waveguide lens after being reflected by the transmittance / reflection beam splitting MEMS galvanometer, and then passes through the reflective S polarizing film to enter the second waveguide lens, and then is reflected by the reflective P polarizing film and then totally reflected in the second waveguide lens, until it encounters the second beam splitting structure in the second waveguide lens and partially reflects out of the second waveguide lens, and is observed by human eyes;

[0009] The second image information light emitted by the second image source passes through the P polarizing film to form P polarized image information light. The P polarized image information light passes through the transmittance / reflection beam splitting MEMS galvanometer and then irradiates the curved reflector. After the refractive action of the curved reflector, collimated P polarized image information light is formed. The collimated P polarized image information light enters the first waveguide lens after being reflected by the transmittance / reflection beam splitting MEMS galvanometer. After being reflected by the reflective S polarizing film, it is totally reflected in the first waveguide lens until it encounters the first beam splitting structure in the first waveguide lens and partially reflects out of the first waveguide lens to be observed by the human eye.

[0010] According to the near-eye display device described in the embodiment of the present application, the output frequency of each frame of the image data source of the first image source and the second image source is the same as the deflection frequency of the transmissive / reflective light-splitting MEMS galvanometer;

[0011] The transmittance / reflection beam splitting MEMS galvanometer is in a state of reciprocating deflection scanning when in use, and the transmittance / reflection beam splitting MEMS galvanometer is used to change the angle of the P-polarized image information light coupled into the first waveguide lens and change the angle of the S-polarized image information light coupled into the second waveguide lens, so that the P-polarized image information light emitted from the first waveguide lens presents a first picture of the image frame in the human eye, and the S-polarized image information light emitted from the second waveguide lens presents a second picture of the image frame in the human eye, and the first picture and the second picture are spliced ​​to form the image frame.

[0012] According to the near-eye display device described in the embodiment of the present application, the first waveguide lens and the second waveguide lens are arrayed waveguide lenses, and the first beam splitting structure and the second beam splitting structure are beam splitting films.

[0013] According to the near-eye display device described in the embodiment of the present application, the angle between the first light splitting structure and the surface of the first waveguide lens is 35° to 39°.

[0014] According to the near-eye display device described in the embodiment of the present application, the angle between the first light splitting structure and the surface of the first waveguide lens is 37°.

[0015] According to the near-eye display device described in the embodiment of the present application, the angle between the second light splitting structure and the surface of the second waveguide lens is 21° to 25°.

[0016] According to the near-eye display device described in the embodiment of the present application, the angle between the second light splitting structure and the surface of the second waveguide lens is 23°.

[0017] According to the near-eye display device described in the embodiment of the present application, the first waveguide lens and the second waveguide lens are diffraction waveguide lenses, and the first beam splitting structure and the second beam splitting structure are diffraction gratings.

[0018] According to the near-eye display device described in the embodiment of the present application, the optical module also includes a dispersion compensation module, and the dispersion compensation module is arranged between the transmission / reflection splitting MEMS galvanometer and the curved reflector.

[0019] According to the near-eye display device described in the embodiment of the present application, the optical module also includes a microlens array, and the microlens array is arranged between the first image source and the S polarizing film, and between the second image source and the P polarizing film.

[0020] The near-eye display device provided by the present application divides the image source into two upper and lower areas, coordinates the polarization phase of the transmittance / reflection splitting MEMS galvanometer to output the image content of the corresponding lines in a time sequence, and uses a transmittance / reflection splitting MEMS galvanometer, a reflective S polarization film, and a reflective P polarization film to separate the image information, and then splices the picture through a double-layer waveguide lens to present a picture with a large field of view. The field of view of this near-eye display device can easily exceed 80°; at the same time, the waveguide lens used enables this near-eye display device to have a dynamic eye frame, so that the original image is not easily distorted, and the overall device is light and thin, with a thickness of less than 5 mm.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the cross-sectional structural schematic diagrams of a near-eye display device provided in the present application;

[0023] Figure 2 This is the second schematic cross-sectional structure diagram of a near-eye display device provided by the present application;

[0024] Figure 3This is the third schematic cross-sectional structure diagram of a near-eye display device provided by the present application;

[0025] Figure 4 This is the fourth cross-sectional structural schematic diagram of a near-eye display device provided in the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that in the description of the embodiments of the present application, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or equipment including the elements. The orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0028] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0029] Combine the following Figures 1 to 4 A near-eye display device of the present application is described.

[0030] A near-eye display device provided by the present application includes: a light source module and an optical module; wherein the light source module includes a first image source 110 and a second image source 210, and the first image source 110 and the second image source 210 are arranged adjacent to each other; the optical module includes an S polarizing film 120, a P polarizing film 220, a transmittance / reflection splitting MEMS galvanometer 130, a curved reflector 140, a reflective S polarizing film 150, a reflective P polarizing film 230, a first waveguide lens 160 and a second waveguide lens 240.

[0031] The lens of the near-eye display device of the present application adopts a double-layer waveguide lens, wherein the first waveguide lens 160 and the second waveguide lens 240 are superimposed and arranged, and the two waveguide lenses can be arrayed waveguide lenses or diffraction waveguide lenses. In the near-eye display device adopting the arrayed waveguide lens, the light splitting structure of the arrayed waveguide lens is a light splitting film, and in the near-eye display device adopting the diffraction waveguide lens, the light splitting structure of the arrayed waveguide lens is a diffraction grating.

[0032] Figure 1 FIG. 1 is a schematic cross-sectional structure diagram of a near-eye display device using an array waveguide lens as an exemplary embodiment of the present application. Figure 1 As shown, a near-eye display device provided by the present application includes: a light source module and an optical module;

[0033] The light source module includes a first image source 110 and a second image source 210, and the first image source 110 and the second image source 210 are disposed adjacent to each other;

[0034] The optical module includes an S polarizing film 120, a P polarizing film 220, a transmittance / reflection beam splitting MEMS galvanometer 130, a curved reflector 140, a reflective S polarizing film 150, a reflective P polarizing film 230, a first waveguide lens 160 and a second waveguide lens 240;

[0035] Among them, the first image information light emitted by the first image source 110 passes through the S polarizing film 120 to form S polarized image information light. The S polarized image information light passes through the transmittance / reflection splitting MEMS galvanometer 130 and then irradiates the curved reflector 140. After the refractive effect of the curved reflector 140, the collimated S polarized image information light is formed. The collimated S polarized image information light is reflected by the transmittance / reflection splitting MEMS galvanometer 130 and then enters the first waveguide lens 160, and then passes through the reflective S polarizing film 150 to enter the second waveguide lens 240. After being reflected by the reflective P polarizing film 230, it is totally reflected in the second waveguide lens 240 until it encounters the second splitting film 250 in the second waveguide lens 240 and is partially reflected out of the second waveguide lens 240, and is observed by the human eye 170.

[0036] The second image information light emitted by the second image source 210 passes through the P polarizing film 220 to form P polarized image information light. The P polarized image information light passes through the transmittance / reflection splitting MEMS galvanometer 130 and irradiates the curved reflector 140. After the refractive action of the curved reflector 140, the collimated P polarized image information light is formed. The collimated P polarized image information light is reflected by the transmittance / reflection splitting MEMS galvanometer 130 and enters the first waveguide lens 160. After being reflected by the reflective S polarizing film 150, it is totally reflected in the first waveguide lens 160 until it encounters the first splitting film 180 in the first waveguide lens and partially reflects out of the first waveguide lens 160 to be observed by the human eye 170.

[0037] The first image source 110 and the second image source 210 are disposed opposite to the transmissive / reflective beam splitting MEMS galvanometer 130, and the transmissive / reflective beam splitting MEMS galvanometer 130 is disposed opposite to the curved reflector 140. The deflection phase of the transmissive / reflective beam splitting MEMS galvanometer 130 is greater than 12°.

[0038] Specifically, the output frequency of each frame of the image data source of the first image source 110 and the second image source 210 is the same as the deflection frequency of the transmittance / reflection spectroscopic MEMS galvanometer 130, and the image data source is output according to a timing sequence, which is related to the deflection period of the transmittance / reflection spectroscopic MEMS galvanometer 130. When the transmittance / reflection spectroscopic MEMS galvanometer 130 completes a deflection, it outputs a frame of the image data source. The image data source is divided into two upper and lower areas, and the first image source 110 and the second image source 210 output the image information of each row of the corresponding area respectively. The first image source 110 outputs a part of the image data source of each frame, and the second image source 210 outputs the remaining part of the image data source of each frame. Figure 1 In the example, the first image source 110 outputs image information of a lower portion of the data source for each frame of image, and the second image source 210 outputs image information of an upper portion of the data source for each frame of image.

[0039] The transmittance / reflection beam splitting MEMS galvanometer 130 is in a state of reciprocating deflection scanning when in use. The transmittance / reflection beam splitting MEMS galvanometer 130 can change the angle of the P-polarized image information light coupled into the first waveguide lens 160 and change the angle of the S-polarized image information light coupled into the second waveguide lens 240, so that the P-polarized image information light emitted from the first waveguide lens 160 presents a first picture of the image frame to the human eye (it can also be said that the part of the image frame presented to the human eye), and the S-polarized image information light emitted from the second waveguide lens 240 presents a second picture of the image frame to the human eye (it can also be the remaining part of the picture except the first picture). The first picture and the second picture can be spliced ​​to form a complete image frame, so that what the human eye sees is a complete and clear picture.

[0040] exist Figure 1In the example, the second waveguide lens 240 is the waveguide lens close to the human eye 170. According to the characteristics of light and the limitation of the angular total reflection of the light splitting structure in the waveguide lens, the proportion of the partial picture presented by the second waveguide lens 240 on the side close to the human eye 170 in the double-layer waveguide lens is smaller than the proportion of the partial picture presented by the first waveguide lens 160 on the side far from the human eye 170 in the complete picture, so that the spliced ​​picture appears complete and clear to the human eye, with high picture quality.

[0041] Since the S-polarized image information light emitted by the second waveguide lens 240 is derived from the first image information light emitted by the first image source 110, and the P-polarized image information light emitted by the first waveguide lens 160 is derived from the second image information light emitted by the second image source 210, the proportion of the partial image data source output by the first image source 110 in the complete image data source is smaller than the proportion of the partial image data source output by the second image source 210 in the complete image data source.

[0042] In some embodiments, the first image source outputs one-third of the image information of each frame of the image data source, and the second image source outputs the remaining two-thirds of the image information of each frame of the image data source. As a result, the S-polarized image information light emitted from the second waveguide lens presents the remaining one-third of the second picture of the image frame to the human eye, and the P-polarized image information light emitted from the first waveguide lens presents the two-thirds of the first picture of the image frame to the human eye. The two pictures are spliced ​​into a complete picture. This imaging method increases the field of view angle.

[0043] It should be noted that the first image source outputs one-third of the image information of each frame image data source, and the second image source outputs the remaining two-thirds of the image information of each frame image data source. There may be a proportional deviation, and the allowable deviation range is ±5%.

[0044] When viewing a 1080P image using the near-eye display device, the first portion of the image (i.e., the first image) and the second portion of the image (i.e., the second image) are divided into two portions at a ratio of one, and the first portion of the image is the 1st to 720th lines, and the second portion of the image is the 721st to 1080th lines. When the transmittance / reflection spectroscopic MEMS galvanometer is deflected to positive 12°, the first image source displays the 721st to 723rd lines of content (in the same line period, the number of content lines displayed simultaneously by the image source is determined by the capability of the image source display device. If it is a linear array display with 1 line of pixels, only 1 line of content is displayed. If it is an area array display with 10 lines of pixels, 10 lines of content are displayed simultaneously. Here, the first image source is an area array display with 3 lines as an example). The image source displays the 1st to 6th lines of content (here the first image source is an area array display with 6 lines). As the deflection angle of the transmittance / reflection spectroscopic MEMS galvanometer gradually decreases, the content displayed by the first image source and the second image source gradually changes to content with a higher number of lines. When the deflection angle of the transmittance / reflection spectroscopic MEMS galvanometer is reduced to 0°, the first image source displays the 900th to 902th lines of content, and the second image source displays the 358th to 363rd lines of content. When the transmittance / reflection spectroscopic MEMS galvanometer is deflected to a negative 12° angle, the first image source displays the 1078th to 1080th lines of content, and the second image source displays the 715th to 720th lines of content. At this point, the transmittance / reflection spectroscopic MEMS galvanometer has completed scanning the entire frame of 1080 lines.

[0045] refer to Figure 1 , the first waveguide lens 160 and the second waveguide lens 240 are array waveguide lenses, so their splitting structures are both splitter films. The waveguide lens contains multiple splitter films. The first splitter film 180 in the first waveguide lens 160 covers at least the upper area of ​​the first waveguide lens, and the coverage ratio exceeds two-thirds, so that the first waveguide lens can completely emit P-polarized image information light that presents two-thirds of the screen; similarly, the second splitter film 250 in the second waveguide lens 240 covers at least the lower area of ​​the first waveguide lens, and the coverage ratio exceeds one-third, so that the second waveguide lens can completely emit S-polarized image information light that presents one-third of the screen.

[0046] The angle between the first prismatic film 180 and the surface of the first waveguide lens 160 may be in the range of 35° to 39°. Preferably, the angle between the first prismatic film 180 and the surface of the first waveguide lens 160 is 37°.

[0047] The included angle between the second prismatic film 250 and the surface of the second waveguide lens 240 may be in the range of 21° to 25°. Preferably, the included angle between the second prismatic film 250 and the surface of the second waveguide lens 240 is 23°.

[0048] In some embodiments, the S polarizing film 120 is coated on the surface of the first image source 110 , and the P polarizing film 220 is coated on the surface of the second image source 210 .

[0049] Figure 2 FIG. 1 is a schematic cross-sectional structure diagram of a near-eye display device using a diffractive waveguide lens as an exemplary embodiment of the present application. Figure 2 As shown, a near-eye display device provided by the present application includes: a light source module and an optical module;

[0050] The light source module includes a first image source 110 and a second image source 210, and the first image source 110 and the second image source 210 are disposed adjacent to each other;

[0051] The optical module includes an S polarizing film 120, a P polarizing film 220, a transmittance / reflection beam splitting MEMS galvanometer 130, a curved reflector 140, a reflective S polarizing film 150, a reflective P polarizing film 230, a first waveguide lens 160 and a second waveguide lens 240;

[0052] Among them, the first image information light emitted by the first image source 110 passes through the S polarizing film 120 to form S polarized image information light. The S polarized image information light passes through the transmittance / reflection splitting MEMS galvanometer 130 and then irradiates the curved reflector 140. After the refractive effect of the curved reflector 140, the collimated S polarized image information light is formed. The collimated S polarized image information light is reflected by the transmittance / reflection splitting MEMS galvanometer 130 and then enters the first waveguide lens 160, and then passes through the reflective S polarizing film 150 to enter the second waveguide lens 240. After being reflected by the reflective P polarizing film 230, it is totally reflected in the second waveguide lens 240 until it encounters the second diffraction grating in the second waveguide lens 240 and partially reflects out of the second waveguide lens 240, and is observed by the human eye 170.

[0053] The second image information light emitted by the second image source 210 passes through the P polarizing film 220 to form P polarized image information light. The P polarized image information light passes through the transmittance / reflection splitting MEMS galvanometer 130 and irradiates the curved reflector 140. After the refractive action of the curved reflector 140, the collimated P polarized image information light is formed. The collimated P polarized image information light is reflected by the transmittance / reflection splitting MEMS galvanometer 130 and enters the first waveguide lens 160. After being reflected by the reflective S polarizing film 150, it is totally reflected in the first waveguide lens 160 until it encounters the first diffraction grating in the first waveguide lens and partially reflects out of the first waveguide lens 160 and is observed by the human eye 170.

[0054] Figure 2The near-eye display device adopts a diffraction waveguide lens, and its splitting structure is a diffraction grating. Similarly, the P-polarized image information light reflected from the first waveguide lens 160 by the first diffraction grating presents a partial picture of the image frame to the human eye, and the S-polarized image information light reflected from the second waveguide lens 240 by the second diffraction grating presents the remaining picture of the image frame to the human eye. The partial picture and the remaining picture can be spliced ​​into a complete picture, and what the human eye sees is a complete and clear picture.

[0055] like Figure 3 As shown, in some embodiments, the optical module further includes a dispersion compensation module 190, which is disposed between the transmittance / reflection beam splitting MEMS galvanometer 130 and the curved reflector 140. The dispersion compensation module 190 can compensate for the dispersion of the S-polarized image information light and the P-polarized image information light transmitted by the transmittance / reflection beam splitting MEMS galvanometer 130, thereby improving the image quality.

[0056] like Figure 4 As shown, in some embodiments, the optical module further includes a microlens array 260, which is disposed between the first image source and the S polarizing film, and between the second image source and the P polarizing film. The microlens array includes a plurality of microlenses, the number of which is related to the image pixels, and one image pixel corresponds to one microlens. Adding a microlens array can improve the utilization rate of the image source light and reduce the curvature of the curved reflector 140.

[0057] In some embodiments, the microlens array is superimposed with the optical module, that is, superimposed with the first image source and the second image source. Correspondingly, the S polarizing film and the P polarizing film are coated on the surface of the microlens array. Specifically, the S polarizing film is coated on the part of the microlenses in the microlens array that are opposite to the first image source, and the P polarizing film is coated on the part of the microlenses in the microlens array that are opposite to the second image source.

[0058] The near-eye display device of the above-mentioned embodiment divides the image source into two upper and lower areas, coordinates the polarization phase of the transmittance / reflection splitting MEMS galvanometer to output the image content of the corresponding lines in a time sequence, and uses a transmittance / reflection splitting MEMS galvanometer, a reflective S polarization film, and a reflective P polarization film to separate the image information, and then splices the picture through a double-layer waveguide lens to present a picture with a large field of view. The field of view of this near-eye display device can easily exceed 80°; at the same time, the waveguide lens used enables this near-eye display device to have a dynamic eye frame, so that the original image is not easily distorted, and the overall device is light and thin, with a thickness of less than 5 mm.

[0059] In the near-eye display device of the above embodiment, the S polarizing film and the P polarizing film can be swapped, and correspondingly, the reflective S polarizing film and the reflective P polarizing film need to be adaptively swapped, so that the picture presented by the near-eye display device can also achieve the same effect.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A near-eye display device, characterized in that: include: Light source module and optical module; The light source module includes a first image source and a second image source; The optical module includes an S polarizing film, a P polarizing film, a transmittance / reflection beam splitting MEMS galvanometer, a curved reflector, a reflective S polarizing film, a reflective P polarizing film, a first waveguide lens, and a second waveguide lens; The first image information light emitted by the first image source passes through the S polarizing film to form S polarized image information light, the S polarized image information light passes through the transmittance / reflection beam splitting MEMS galvanometer and then irradiates the curved reflector, and forms collimated S polarized image information light after the refractive action of the curved reflector, the collimated S polarized image information light enters the first waveguide lens after being reflected by the transmittance / reflection beam splitting MEMS galvanometer, and then passes through the reflective S polarizing film to enter the second waveguide lens, and then is reflected by the reflective P polarizing film and then totally reflected in the second waveguide lens, until it encounters the second beam splitting structure in the second waveguide lens and partially reflects out of the second waveguide lens, and is observed by human eyes; The second image information light emitted by the second image source passes through the P polarizing film to form P polarized image information light. The P polarized image information light passes through the transmittance / reflection beam splitting MEMS galvanometer and then irradiates the curved reflector. After the refractive action of the curved reflector, collimated P polarized image information light is formed. The collimated P polarized image information light enters the first waveguide lens after being reflected by the transmittance / reflection beam splitting MEMS galvanometer. After being reflected by the reflective S polarizing film, it is totally reflected in the first waveguide lens until it encounters the first beam splitting structure in the first waveguide lens and partially reflects out of the first waveguide lens to be observed by the human eye.

2. The near-eye display device according to claim 1, characterized in that: The output frequency of each frame of the image data source of the first image source and the second image source is the same as the deflection frequency of the transmissive / reflective spectroscopic MEMS galvanometer; The transmittance / reflection beam splitting MEMS galvanometer is in a state of reciprocating deflection scanning when in use, and the transmittance / reflection beam splitting MEMS galvanometer is used to change the angle of the P-polarized image information light coupled into the first waveguide lens and change the angle of the S-polarized image information light coupled into the second waveguide lens, so as to obtain a first picture of the image frame presented by the P-polarized image information light emitted from the first waveguide lens in the human eye, and obtain a second picture of the image frame presented by the S-polarized image information light emitted from the second waveguide lens in the human eye, and the first picture and the second picture are spliced ​​to form the image frame.

3. The near-eye display device according to claim 1, characterized in that: The first waveguide lens and the second waveguide lens are arrayed waveguide lenses, and the first beam splitting structure and the second beam splitting structure are beam splitting films.

4. The near-eye display device according to claim 3, characterized in that: The included angle between the first light splitting structure and the surface of the first waveguide lens is 35° to 39°.

5. The near-eye display device according to claim 4, characterized in that: The included angle between the first light splitting structure and the surface of the first waveguide lens is 37°.

6. The near-eye display device according to claim 3, characterized in that: The included angle between the second light splitting structure and the surface of the second waveguide lens is 21° to 25°.

7. The near-eye display device according to claim 6, characterized in that: The included angle between the second light splitting structure and the surface of the second waveguide lens is 23°.

8. The near-eye display device according to claim 1, characterized in that: The first waveguide lens and the second waveguide lens are diffraction waveguide lenses, and the first beam splitting structure and the second beam splitting structure are diffraction gratings.

9. The near-eye display device according to claim 1, characterized in that: The optical module further comprises a dispersion compensation module, and the dispersion compensation module is arranged between the transmission / reflection light splitting MEMS galvanometer and the curved reflector.

10. The near-eye display device according to claim 1, characterized in that: The optical module further includes a microlens array disposed between the first image source and the S-polarizing film, and between the second image source and the P-polarizing film.

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