Near-to-eye display device and angle adjusting mechanism

Abstract

The utility model provides a near-to-eye display device and an angle adjusting mechanism. The near-to-eye display device comprises a first bearing frame and a second bearing frame which are arranged adjacently. The first bearing frame is used for bearing a lens module, the second bearing frame is used for bearing an optical machine module, and the second bearing frame comprises a three-dimensional coordinate adjusting mechanism and an angle adjusting mechanism. The inclination angle of the ray machine module can be adjusted by arranging the angle adjusting mechanism, so that display pictures of the ray machine module at different angles are displayed, the display effect of multi-dimensional near-eye display of an exhibit is improved, and a user obtains multi-dimensional experience feeling.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a near-eye display device and an angle adjustment mechanism for displaying near-eye display technology. Background Art

[0002] Micro-LED, also known as mLED or μLED, is an electroluminescent device that converts electrical energy into light energy, consisting of an array of micron-sized semiconductor light-emitting units. Micro-LED is a comprehensive technology that integrates new display technology with light-emitting diode (LED) technology. It boasts self-luminescence, high efficiency, low power consumption, high integration, high stability, and all-weather operation, making it considered one of the most promising next-generation new display and light-emitting devices. Due to its small size, high flexibility, and ease of disassembly and merging, Micro-LED can be deployed in any existing display application, from the smallest to the largest, and in many cases, it will offer more unique effects than liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays. Compared with LCD and OLED, Micro-LED has the following advantages: self-luminous and high efficiency; low power consumption, about 10% of LCD and 50% of OLED; high brightness, 30 times higher than OLED; ultra-high resolution, exceeding 1500PPI; high color saturation, 120% NTSC; fast response speed, nanosecond level; extremely high contrast; wide viewing angle; seamless splicing to achieve display of any size; service life of more than 100,000 hours, etc.

[0003] At present, the exhibition experience of Micro-LED display technology is limited, which is not conducive to market promotion and cannot provide the audience with a comprehensive and multi-dimensional experience. For example, once the existing display device is assembled, it has a fixed position and angle. When displaying the key components of Micro-LED near-eye display, the height, slope, and relative position of the optical machine module (such as the Micro-LED optical machine module) relative to the lens module on the X-axis, Y-axis, and Z-axis cannot be arbitrarily changed. It is also not conducive to replacing the optical machine module, and the lens module cannot be replaced. This results in the inability of the audience to experience the powerful functions of the near-eye display product according to their own ideas. This kind of display device that only allows the audience to watch but does not allow the audience to participate in the adjustment seriously affects the audience's enthusiasm and passion for the displayed products. The existing practice is to display multiple display devices to present different product configurations or various display effects of application scenarios during the exhibition. This approach not only increases the display area and costs, but also reduces the audience's visual sense and curiosity.

[0004] In addition, the existing display devices are not automated enough and require manual mechanical external force to experience. There are no scale markings and accurate real-time positioning is impossible. At the same time, they are not intelligent and have no AI control. The angle, height and slope during the experience cannot be broadcast in real time, leaving the audience with no reference point.

[0005] Therefore, it is necessary to improve the existing display device to overcome the above disadvantages. Utility Model Content

[0006] One of the purposes of this application is to provide a near-eye display device that can perform multi-dimensional structural adjustment, accurately demonstrate the powerful functions of near-eye display, and enable users to experience the effects of near-eye display in multiple dimensions.

[0007] Another object of the present application is to provide an angle adjustment mechanism suitable for a near-eye display device, which can accurately adjust the display angle and demonstrate the powerful function of near-eye display.

[0008] To achieve the above-mentioned purpose, the present application provides a near-eye display device, comprising: a first carrier and a second carrier arranged adjacent to each other. The first carrier is used to carry a lens module. The second carrier is used to carry an optical machine module, and the second carrier includes a three-dimensional coordinate adjustment mechanism and an angle adjustment mechanism connected to the three-dimensional coordinate adjustment mechanism; the three-dimensional coordinate adjustment mechanism is used to drive the angle adjustment mechanism to move relative to the first carrier and change the position of the optical machine module relative to the lens module; the angle adjustment mechanism includes a first turntable and a second turntable arranged perpendicular to each other and capable of rotating independently, and the optical machine module is mounted on the second turntable; the first turntable is used to adjust the horizontal tilt angle of the optical machine module by rotation; the second turntable is used to adjust the vertical tilt angle of the optical machine module by rotation.

[0009] Optionally, the three-dimensional coordinate adjustment mechanism includes a moving base, a first operating rod, a second operating rod and a third operating rod; wherein the first operating rod, the second operating rod and the third operating rod are used to adjust the three-dimensional spatial position of the moving base.

[0010] Optionally, the angle adjustment mechanism further includes a turntable bracket, which is used to be connected to the moving base of the three-dimensional coordinate adjustment mechanism and can move with the moving base; the first turntable and the second turntable can be rotatably arranged on the turntable bracket.

[0011] Optionally, the angle adjustment mechanism includes a horizontal mounting platform, a vertical mounting platform, and a rotating frame disposed between the horizontal mounting platform and the vertical mounting platform; the first turntable is horizontally disposed on the horizontal mounting platform rotatably; the second turntable is vertically disposed on the vertical mounting platform rotatably; one end of the rotating frame is fixedly connected to the vertical mounting platform; the other end of the rotating frame is fixedly connected to the first turntable. Wherein, the first turntable is used for rotating the rotating frame, the vertical mounting platform, the second turntable and the optical engine module together during rotation to adjust the horizontal tilt angle of the optical engine module; wherein the second turntable is used for rotating the optical engine module together during rotation to adjust the vertical tilt angle of the optical engine module; and the vertical mounting platform, the rotating frame and the first turntable all remain stationary.

[0012] Optionally, the first turntable is provided with a digital scale; a first alignment block is provided on the horizontal mounting platform; the first alignment block is provided with an arrow pointer for pointing to the scale on the first turntable; the second turntable is provided with a digital scale; a second alignment block is provided on the vertical mounting platform; the second alignment block is provided with an arrow pointer for pointing to the scale on the second turntable.

[0013] Optionally, the horizontal mounting platform is indirectly connected to the three-dimensional coordinate adjustment mechanism through a support; or the horizontal mounting platform is directly connected to the three-dimensional coordinate adjustment mechanism.

[0014] Optionally, both the first turntable and the second turntable are provided with laser marking disks; the near-eye display device is provided with a digital display for automatically displaying the horizontal tilt angle and the vertical tilt angle of the optical engine module.

[0015] Optionally, the first turntable is provided with a first operating handle for a user to rotate the first turntable; the second turntable is provided with a second operating handle for a user to rotate the second turntable.

[0016] Optionally, the near-eye display device further includes at least one of the following: a first stepping motor for driving the first turntable to rotate; a second stepping motor for driving the second turntable to rotate.

[0017] Optionally, the first operating rod, the second operating rod and the third operating rod are all provided with scale marks; the first operating rod, the second operating rod and the third operating rod are respectively independently rotated by driving with a stepping motor or manually operated to adjust the three-dimensional spatial position of the moving seat.

[0018] Optionally, the three-dimensional coordinate adjustment mechanism further includes a fixed seat, and the moving seat is movably arranged on the fixed seat; the first operating rod, the second operating rod, and the third operating rod are arranged on the fixed seat to adjust the position of the moving seat.

[0019] Optionally, the near-eye display and demonstration device further includes a base, and the first carrier and the second carrier are both independently arranged on the base.

[0020] Optionally, the first carrier includes a support rod and a display table arranged on the support rod; the support rod is arranged as an electrically telescopic rod; the display table is provided with at least one placement groove; wherein, the lens module stands upright in the placement groove.

[0021] Optionally, the optical engine module is detachably fixed to the second turntable.

[0022] Optionally, the near-eye display and demonstration device is a Micro-LED near-eye display and demonstration device; wherein, the lens module includes a sheet-shaped or plate-shaped optical lens, and the optical lens is a transparent waveguide lens; wherein, the optical engine module is a Micro-LED-based micro-projection light engine for generating images.

[0023] To achieve the above object, the present application further provides an angle adjustment mechanism, which is applicable to a near-eye display and demonstration device. The angle adjustment mechanism includes: a first turntable and a second turntable that are arranged perpendicular to each other and can rotate independently; the second turntable is used to carry the optical engine module, and the second turntable and the optical engine module can rotate together with the first turntable. Among them, the first turntable is used to adjust the horizontal tilt angle of the optical engine module by rotation. Among them, the second turntable is used to rotate and adjust the vertical tilt angle of the optical engine module.

[0024] The beneficial effects of the near-eye display and demonstration device and the angle adjustment mechanism of the present application are as follows: The near-eye display and demonstration device of the present application can adjust the different positions and different tilt angles of the optical engine module by setting the three-dimensional coordinate adjustment mechanism and the angle adjustment mechanism, so as to display the display pictures of the optical engine module at different positions and different angles, improve the display effect of multi-dimensional near-eye display of exhibits, accurately display the powerful functions of Micro-LED near-eye display products, enable users to obtain a multi-dimensional sense of experience, and realize multi-dimensional perceptible monitoring. At the same time, the near-eye display and demonstration device of the present application can also be upgraded automatically and intelligently by setting an automatic control or remote control rotation mode. Users can switch to the desired display angle at will according to their own ideas, and even realize voice remote control, which greatly improves the enthusiasm and enthusiasm of users for the exhibits. In short, the near-eye display and demonstration device of the present application has the characteristics of strong flexibility, strong compatibility, high precision, high degree of automation, and AI intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 This is a schematic diagram of the structure of the near-eye display device provided in an embodiment of the present application when the lens module is not installed.

[0027] Figure 2 This is a structural schematic diagram of the near-eye display device provided in an embodiment of the present application after the lens module is installed, mainly showing a state schematic diagram of the angle adjustment mechanism of the first turntable and the second turntable when they are not rotating.

[0028] Figure 2a for Figure 2 The structural schematic diagram of the three-dimensional coordinate adjustment mechanism shown.

[0029] Figure 2b for Figure 2 Schematic diagram of the structure of the angle adjustment mechanism shown.

[0030] Figure 2c This is a schematic planar structural diagram of the first turntable and its digital scale dial provided in an embodiment of the present application.

[0031] Figure 3 This is a structural schematic diagram of the near-eye display device provided in an embodiment of the present application, which mainly shows a schematic diagram of the state of the angle adjustment mechanism when the first turntable rotates a certain angle.

[0032] Figure 3a for Figure 3 The diagram shows a schematic diagram of the projection angle obtained by projecting the optical machine module and the lens module downward.

[0033] Figure 4 This is a structural schematic diagram of the near-eye display device provided in an embodiment of the present application, which mainly shows a schematic diagram of the state of the angle adjustment mechanism when the second turntable rotates a certain angle.

[0034] Figure 4a for Figure 4 The diagram shows a schematic diagram of the projection angle obtained by projecting the optical machine module and the lens module to the right.

[0035] Figure 5This is a schematic structural diagram of the near-eye display device provided by the embodiments of the present application, mainly showing the state schematic diagram of the angle adjustment mechanism when both the first turntable and the second turntable rotate by a certain angle.

[0036] Explanation of reference numerals:

[0037] Near-eye display device 1; lens module 2; optical engine module 3;

[0038] First carrier 10; support rod 11; display platform 12;

[0039] Placement groove 120; second carrier 20; three-dimensional coordinate adjustment mechanism 30;

[0040] First operating rod 31; second operating rod 32; third operating rod 33;

[0041] Moving seat 34; slot 340; fixed seat 35;

[0042] Angle adjustment mechanism 40; first turntable 41; first operating handle 410;

[0043] Second turntable 42; second operating handle 420; turntable bracket 43;

[0044] Horizontal mounting table 430; first alignment block 430-1; vertical mounting table 431;

[0045] Second alignment block 431-1; rotating frame 432; vertical end 432-1;

[0046] Horizontal end 432-2; projection angles A, B; base 50;

[0047] Bottom plate 51; screw 52; support 60. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. The shapes and sizes of the components or structures shown in the accompanying drawings of the present application do not reflect their true proportions, and their purpose is only to facilitate the description of the content of the embodiments of the present application.

[0049] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0050] In the description of the embodiments of the present application, the orientation or positional relationship indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the application.

[0051] In the description of the embodiments of the present application, terms such as "first", "second", etc. are only used to clearly identify different parts or components, or to distinguish similar objects, so as to accurately understand the composition of the technology and the functions of each part, and should not be construed as having a specific order or meaning of importance.

[0052] The embodiments of the present application provide a near-eye display device and an angle adjustment mechanism applicable to the near-eye display device. The near-eye display device in the embodiments of the present application aims to precisely display the powerful functions of near-eye display (such as Micro-LED near-eye display) in multiple dimensions, so that users can obtain a multi-dimensional sense of experience. The so-called Micro-LED near-eye display device can be glasses, a head-mounted display device, an augmented reality device, a virtual reality device, a mixed reality device, etc.

[0053] It should be noted that the near-eye display device of the present application is not limited to the Micro-LED near-eye display device, and can also be a display device of other near-eye display technologies.

[0054] Please refer to Figure 1 and Figure 2 As shown, the near-eye display device 1 provided by the embodiments of the present application includes: a first carrier 10 and a second carrier 20 arranged adjacent to each other. The first carrier 10 is used to carry the lens module 2. The second carrier 20 is used to carry the optical engine module 3. The second carrier 20 includes a three-dimensional coordinate adjustment mechanism 30 and an angle adjustment mechanism 40. The angle adjustment mechanism 40 is connected to the three-dimensional coordinate adjustment mechanism 30. The three-dimensional coordinate adjustment mechanism 30 is used to drive the angle adjustment mechanism 40 to move relative to the first carrier 10 to change the position of the optical engine module 3, especially to change the relative position between the optical engine module 3 and the lens module 2. The angle adjustment mechanism 40 includes a first turntable 41 and a second turntable 42 that are arranged perpendicular to each other and can rotate independently. The optical engine module 3 is mounted on the second turntable 42. The first turntable 41 is used to adjust the horizontal tilt angle of the optical engine module 3 by rotation, especially to adjust the horizontal tilt angle of the optical engine module 3 relative to the lens module 2. The second turntable 42 is used to adjust the vertical tilt angle of the optical engine module 3 by rotation, especially to adjust the vertical tilt angle of the optical engine module 3 relative to the lens module 2.

[0055] It should be noted that "the angle adjustment mechanism 40 is connected to the three-dimensional coordinate adjustment mechanism 30", and the "connection" here can be direct connection, indirect connection, detachable connection or non-detachable connection, etc. Of course, the "connection" also includes: a part of the structure of the angle adjustment mechanism 40 and a part of the structure of the three-dimensional coordinate adjustment mechanism 30 are designed with a split structure and then assembled together, or directly designed with an integral structure. In this embodiment, the two are designed with a split structure and then assembled together. For example, the angle adjustment mechanism 40 is detachably and indirectly connected to the three-dimensional coordinate adjustment mechanism 30 (especially the moving seat 34 of the three-dimensional coordinate adjustment mechanism 30) through the support 60. For a detailed description, please continue to refer to the following text.

[0056] As Figure 1 and Figure 2 shown, in the embodiment of the present application, the near-eye display device 1 further includes a base 50, and both the first carrier 10 and the second carrier 20 are disposed on the base 50. The material of the base 50 can be a transparent or opaque material, such as an acrylic board, iron material, stainless steel material, copper material, etc.

[0057] As Figure 1 and Figure 2 shown, in the embodiment of the present application, the first carrier 10 includes a support rod 11 and a display table 12 disposed on the support rod 11. One end of the support rod 11 is connected to the base 50, and the other end of the support rod 11 is connected to the display table 12. The lens module 2 is placed on the display table 12. Specifically, the display table 12 is provided with at least one placement groove 120, and the lower edge of the lens module 2 is inserted into the placement groove 120 and stands upright therein to be ready to be coupled with the optical engine module 3 and display an image.

[0058] It should be noted that "one end of the support rod 11 is connected to the base 50", and the "connection" here can be detachable connection, non-detachable connection, fixed connection or movable connection. For example, in the embodiment of the present application, the support rod 11 is detachably and fixedly connected to the base 50, and the display table 12 is also detachably and fixedly connected to the support rod 11. In other embodiments, the support rod 11 can also be movably connected (such as rotatably connected) to the base 50, and the display table 12 can also be movably connected (such as rotatably connected) to the support rod 11, so as to be able to adjust the placement angle of the lens module 2 on the first carrier 10. During subsequent display, the position of the display table 12 can be not changed, and only adjusted when needed; the lens module 2 can move left and right in the placement groove 120 to adjust its initial distance from the optical engine module 3. In addition, the support rod 11 can be designed as a structure with adjustable height or telescopic, such as an electric telescopic rod, so as to facilitate the user to freely adjust the display height of the display table 12.

[0059] Please refer to Figure 2 and Figure 2a In the embodiment of the present application, the three-dimensional coordinate adjustment mechanism 30 is arranged on the base 50. The three-dimensional coordinate adjustment mechanism 30 includes a first operating rod 31, a second operating rod 32, a third operating rod 33, and a moving seat 34. Among them, the first operating rod 31, the second operating rod 32, and the third operating rod 33 are used to independently adjust the three-dimensional spatial position of the moving seat 34. The so-called three-dimensional spatial position refers to the positions in the front, rear, left, right, up, and down directions. For example: the first operating rod 31 can adjust the horizontal position (i.e., left and right position) of the moving seat 34, the second operating rod 32 can adjust the longitudinal position (i.e., front and rear position) of the moving seat 34, and the third operating rod 33 can adjust the vertical position (i.e., up and down position) of the moving seat 34. The near-eye display device 1 of the present application can realize the displacement change of the optical engine module 3 in three dimensions through the three-dimensional coordinate adjustment mechanism 30, and display the corresponding display effect after the displacement change.

[0060] In addition, in the embodiment of the present application, the first operating rod 31, the second operating rod 32, and the third operating rod 33 are all provided with scale marks (not shown), which can help users accurately control the moving distance of the moving seat 34 in the corresponding direction.

[0061] In the embodiment of the present application, the first operating rod 31, the second operating rod 32, or the third operating rod 33 can be manually rotated, so that the moving seat 34 makes a linear movement in the front-rear direction, left-right direction, or up-down direction under the action of its internal thread (or other structures). Of course, in other embodiments, a stepper motor can also be used instead of manual operation to drive the first operating rod 31, the second operating rod 32, and the third operating rod 33 to rotate independently, so as to realize the automatic adjustment of the moving seat 34.

[0062] Please refer to Figure 2 and Figure 2aThe reference numerals shown. In the embodiment of the present application, the three-dimensional coordinate adjustment mechanism 30 further includes a fixed base 35. The fixed base 35 is fixedly arranged on the base 50, and the movable base 34 is movably arranged on the fixed base 35. The first operating rod 31, the second operating rod 32 and the third operating rod 33 are arranged on the fixed base 35 to adjust the three-dimensional position of the movable base 34. In the embodiment of the present application, first, the fixed base 35 is fixed to a bottom plate 51, and then the bottom plate 51 is fixed to the base 50 by screws 52, so as to fix the fixed base 35 to the base 50. In fact, in other embodiments, the bottom plate 51 and / or the fixed base 35 can be omitted, and the base 50 can be directly used to replace the fixed base 35, and the purpose of adjusting the movable base 34 by using the first operating rod 31, the second operating rod 32 and the third operating rod 33 can also be achieved. Or in other words, the present application does not limit the specific structure of the fixed base 35 and its fixing method with the base 50. The fixed base 35 can form an integral structure or a split structure with the base 50.

[0063] Please refer to Figure 2 and Figure 2b The reference numerals shown. In the embodiment of the present application, the angle adjustment mechanism 40 further includes a turntable bracket 43. The first turntable 41 and the second turntable 42 are both rotatably arranged on the turntable bracket 43. In particular, the first turntable 41 is rotatably arranged horizontally on the turntable bracket 43, so the first turntable 41 can be called a horizontal turntable here; while the second turntable 42 is rotatably arranged vertically on the turntable bracket 43, so the second turntable 42 can be called a vertical turntable here. The turntable bracket 43 is connected to the movable base 34 of the three-dimensional coordinate adjustment mechanism 30 and can move along with the movable base 34. The "connection" here can be a direct connection or an indirect connection. For example, in this embodiment, the turntable bracket 43 is indirectly connected to the movable base 34 of the three-dimensional coordinate adjustment mechanism 30 through a support 60 to raise the height of the turntable bracket 43 and even the entire angle adjustment mechanism 40. In the embodiment of the present application, the connection method between the support 60 and the movable base 34 can be: a slot 340 is arranged on the movable base 34, and then the support 60 is inserted into the slot 340 and fixed therein. Of course, the support 60 can also be fixed to the movable base 34 by using an adhesive; or the support 60 can be fixed to the movable base 34 by screwing a screw through the movable base 34 and then into the bottom of the support 60. In other embodiments, the turntable bracket 43 can be directly connected to the movable base 34 of the three-dimensional coordinate adjustment mechanism 30 without using the support 60. For a detailed description, please continue to refer to the following text.

[0064] Please refer to Figure 2 and Figure 2bReferring to the reference numerals shown, the turntable bracket 43 includes a horizontal mounting table 430, a vertical mounting table 431, and a rotating frame 432 disposed between the horizontal mounting table 430 and the vertical mounting table 431. The rotating frame 432 and the vertical mounting table 431 can jointly rotate horizontally relative to the horizontal mounting table 430.

[0065] Please refer to Figure 2 and Figure 2b Referring to the reference numerals shown, the first turntable 41 is rotatably horizontally disposed on the horizontal mounting table 430 and can rotate relative to the horizontal mounting table 430 under the drive of an external force; the second turntable 42 is rotatably vertically disposed on the vertical mounting table 431 and can rotate relative to the vertical mounting table 431 under the drive of an external force; one end (for example, the horizontal end 432-2) of the rotating frame 432 is fixedly connected to the vertical mounting table 431; the other end (for example, the vertical end 432-1) of the rotating frame 432 is fixedly connected to the first turntable 41, especially fixedly connected to the central position of the first turntable 41.

[0066] Please refer to Figure 3 Referring to the figure shown, when the first turntable 41 rotates horizontally relative to the horizontal mounting table 430 under the drive of an external force, the rotating frame 432 will rotate together with the first turntable 41, and at the same time, the rotating frame 432 will drive the vertical mounting table 431 and the second turntable 42 to rotate horizontally together. That is to say, when the first turntable 41 is rotated, the rotating frame 432, the vertical mounting table 431, and the second turntable 42 will all rotate horizontally together with the first turntable 41, thereby adjusting the horizontal tilt angle of the optical engine module 3. The so-called horizontal tilt angle refers to the projection angle A obtained by the orthographic projection of the optical engine module 3 and the lens module 2 downward, as shown in Figure 3a shown. Therefore, the near-eye display device 1 of the present application can achieve diverse display effects of the optical engine module 3 after horizontal tilting at different angles through the first turntable 41.

[0067] Please refer to Figure 4 Referring to the figure shown, when the second turntable 42 rotates vertically relative to the vertical mounting table 431 under the drive of an external force, the vertical mounting table 431, the rotating frame 432 fixedly connected to the vertical mounting table 431, and the first turntable 41 fixedly connected to the rotating frame 432 all remain stationary. At this time, the vertical tilt angle of the optical engine module 3 can be precisely adjusted by the rotation of the second turntable 42. The so-called vertical tilt angle refers to the projection angle B obtained by the orthographic projection of the optical engine module 3 and the lens module 2 to the right (or left), as shown in Figure 4a shown. Therefore, the near-eye display device 1 of the present application can achieve diverse display effects of the optical engine module 3 after vertical tilting at different angles through the second turntable 42.

[0068] Please refer to Figure 5As shown, when the first turntable 41 and the second turntable 42 both rotate by a certain angle under the drive of an external force, more dimensional positional relationships between the optical engine module 3 and the lens module 2 can be achieved, thereby obtaining the desired multi-dimensional display experience.

[0069] In the embodiment of the present application, the second turntable 42 is used to carry the optical engine module 3. However, the present application does not limit the fixing method or installation method of the optical engine module 3 to the second turntable 42, as long as it is ensured that the second turntable 42 can drive the optical engine module 3 to rotate and adjust the vertical tilt angle of the optical engine module 3 when rotating. Further, "the optical engine module 3 is installed on the second turntable 42". In specific implementation, an insertion interface or a jack can be provided on the second turntable 42, and one end of the optical engine module 3 is directly inserted into the insertion interface or the hole, thereby fixing the optical engine module 3 to the second turntable 42. In the embodiment of the present application, the optical engine module 3 can be detachably fixed to the second turntable 42 by manual means or by an automatic machine automatic installation method, especially detachably fixed to the central position of the second turntable 42. The optical engine module 3 is detachably fixed to the second turntable 42, which can facilitate the replacement and display of optical engine modules 3 of different size specifications.

[0070] In the embodiment of the present application, please refer to Figure 2 、 Figure 2b and Figure 2c As shown, the first turntable 41 is provided with a bottom rotating shaft (not shown), and the bottom rotating shaft is rotatably installed on the horizontal installation table 430; the first turntable 41 is provided with a first operation handle 410 for facilitating the user to rotate the first turntable 41; the first turntable 41 is provided with a digital scale (see Figure 2c ), and a first alignment block 430-1 is provided on the horizontal installation table 430 for aligning with the scale on the digital scale. The specific method is that at the beginning of the installation of the first turntable 41, the zero point on the digital scale is aligned with the arrow pointer of the first alignment block 430-1 (see Figure 2c ). When the first turntable 41 is rotated, the rotation angle of the first turntable 41 can be known according to the scale pointed by the arrow pointer of the first alignment block 430-1, and thus the horizontal tilt angle of the optical engine module 3 can be known. It can be seen that the rotation angle of the first turntable 41 is equal to the horizontal tilt angle of the optical engine module 3 (i.e., the projection angle A).

[0071] Similarly, please refer to Figure 2 、 Figure 2b and Figure 2cAs shown in the figure, the second turntable 42 is provided with a side rotating shaft (not shown), and the side rotating shaft is rotatably mounted on the vertical mounting table 431; the second turntable 42 is provided with a second operating handle 420 for facilitating the user to rotate the second turntable 42; the second turntable 42 is provided with a digital scale, and a second alignment block 431-1 is provided on the vertical mounting table 431 for aligning with the scale on the digital scale. The specific method is that at the beginning of the installation of the second turntable 42, the zero point on the digital scale is aligned with the arrow pointer on the second alignment block 431-1 (although not shown, reference can be made to Figure 2c the design). When the second turntable 42 is rotated, the rotation angle of the second turntable 42 can be known according to the scale pointed by the arrow pointer of the second alignment block 431-1, so as to know the vertical inclination angle of the optical engine module 3. It can be seen from this that the rotation angle of the second turntable 42 is equal to the vertical inclination angle of the optical engine module 3 (i.e., the projection angle B).

[0072] In the embodiment of the present application, the first turntable 41 and the second turntable 42 cannot be limited to the mode of manual operation or manual rotation only, and can also be set to the mode of automatic control or remote control rotation by using a stepper motor (not shown) or other power devices. For example, the near-eye display device 1 can also include at least one of the first stepper motor and the second stepper motor, wherein the first stepper motor is used to drive the first turntable to rotate; the second stepper motor is used to drive the second turntable to rotate; thus, the mode of automatic control or remote control rotation can be selectively partially or fully realized. In addition, the rotation angles of the first turntable 41 and the second turntable 42 (or the horizontal inclination angle and the vertical inclination angle of the optical engine module 3) are not limited to the mode of manual reading. Manual reading is based on the alignment relationship between the digital scale and the arrow pointer; the rotation angle can also be designed as an automatic reading method. For example, the digital scale can be designed as a laser identification disk and directly display the result through a digital display (not shown) for the user to automatically read. In fact, the mode of automatic reading and display can avoid manual reading errors, improve the accuracy of angle reading, can bring accurate reference data for subsequent use, and the mode of automatic reading and display can greatly improve the user experience.

[0073] Regarding the shape or structure of the horizontal mounting table 430, the present application does not limit the specific structural shape of the horizontal mounting table 430, as long as it can be used to horizontally support the first turntable 41. For example, in the embodiment of the present application, as Figure 2 shown, the horizontal mounting table 430 is in the shape of a horizontal plate; in other embodiments, the horizontal mounting table 430 can be a mounting table with a part of a horizontal surface, or other structures that can enable the first turntable 41 to rotate smoothly relative to the horizontal mounting table 430.

[0074] In addition, the horizontal mounting platform 430 can be directly or indirectly fixedly connected to the three-dimensional coordinate adjustment mechanism 30, especially to the moving base 34 of the three-dimensional coordinate adjustment mechanism 30. In the embodiment of the present application, the horizontal mounting platform 430 is fixedly connected to the moving base 34 of the three-dimensional coordinate adjustment mechanism 30 through the support 60 to raise the height of the horizontal mounting platform 430 and even the entire angle adjustment mechanism 40. In the embodiment of the present application, the connection mode between the horizontal mounting platform 430 and the support 60 can be: fixing the horizontal mounting platform 430 and the support 60 by using glue. Or screws can also be used to pass through the horizontal mounting platform 430 and then screwed into the support 60 to fix the two. In other embodiments, the horizontal mounting platform 430 can be a part of the moving base 34, that is to say, the moving base 34, the horizontal mounting platform 430 and the support 60 cannot be limited to a split structure only, and the three can also be an integral structure, as long as the function of the horizontal mounting platform 430 to support the first turntable 41 can be realized.

[0075] Similarly, regarding the shape or structure of the vertical mounting platform 431, the present application does not limit the specific structural shape of the vertical mounting platform 431, and it can be used to support the second turntable 42. For example, in the embodiment of the present application, the vertical mounting platform 431 is in the shape of a vertical plate; while in other embodiments, the vertical mounting platform 431 can be a member with a part of a vertical surface, or other structures that can enable the second turntable 42 to rotate vertically smoothly relative to the vertical mounting platform 431.

[0076] In the embodiment of the present application, the rotating frame 432 has a vertical end 432-1 and a horizontal end 432-2 (the reference numerals are shown in Figure 2 ), wherein the vertical end 432-1 is fixedly connected to the first turntable 41, and the horizontal end 432-2 is fixedly connected to the vertical mounting platform 431. Actually, in specific implementation, the rotating frame 432 and the vertical mounting platform 431 can be set as an integral structure or a split structure, as long as the two can rotate horizontally relative to the horizontal mounting platform 430 together.

[0077] In the embodiment of the present application, the lens module 2 includes a sheet-like or plate-like optical lens. For example, the optical lens can be a transparent waveguide lens; the lens module 2 can also include a lens frame for fixing the optical lens.

[0078] In the embodiment of the present application, the light engine module 3 can be a micro-projection light engine based on Micro-LED, which is used to generate an image. The image generated by the light engine module 3 enters the inside of the waveguide lens through the coupling area, is totally reflected by the waveguide lens and then transmitted to the coupling-out area, and exits from the coupling-out area to the user's eyes.

[0079] In summary, the near-eye display device 1 of the present application can adjust different positions and different angles of the optical engine module 3 through the three-dimensional coordinate adjustment mechanism 30 and the angle adjustment mechanism 40, so as to display the display screens of the optical engine module 3 at different positions and different angles, improve the display effect of multi-dimensional near-eye display of exhibits, accurately display the powerful functions of Micro-LED near-eye display products, enable users to obtain a multi-dimensional sense of experience, and achieve multi-dimensional perceptible monitoring. At the same time, the near-eye display device 1 of the present application can also realize the automation and intelligent upgrade of exhibits. For example, by setting an automatic control or remote control rotation mode, users can freely switch to the desired display angle according to their own ideas, and even realize voice remote control, greatly enhancing the enthusiasm and enthusiasm of users for exhibits.

[0080] Generally speaking, the near-eye display device 1 of the present application has the characteristics of strong flexibility, strong compatibility, high precision, high degree of automation, and AI intelligence. For example, the optical engine module 3 and the lens module 2 of the near-eye display device 1 of the present application can be freely replaced, thus realizing the characteristic of strong flexibility. Strong compatibility means that a display structure can be compatible with Micro-LED near-eye display products of different sizes. High precision means that the horizontal tilt angle and vertical tilt angle of the optical engine module 3 can be accurately positioned by introducing a digital dial. High degree of automation means that the operation of the three-dimensional coordinate adjustment mechanism 30 and the angle adjustment mechanism 40 is controlled by introducing electric power (such as a motor), thus liberating the hands and realizing automation. In addition, the near-eye display device 1 of the present application is also provided with a USB charging power supply or a battery to provide the required electric energy for the automation system (such as a stepper motor). The near-eye display device 1 of the present application can also be configured with an AI controller to realize AI intelligence. For example, it can be voice-controlled and the monitoring adjustment displacement state and operation status can be displayed in real time.

[0081] The embodiment of the present application also provides an angle adjustment mechanism 40, which is applicable to a near-eye display device, especially applicable to the near-eye display device 1 as described above. As Figure 1 shown, the angle adjustment mechanism 40 provided by the embodiment of the present application includes: a first turntable 41 and a second turntable 42 that are arranged perpendicular to each other and can rotate independently; the second turntable 42 is used to carry the optical engine module 3, and the second turntable 42 and the optical engine module 3 can rotate together with the first turntable 41. Among them, the first turntable 41 is used to adjust the first tilt angle of the optical engine module 3 by rotation, and the second turntable 42 is used to adjust the second tilt angle of the optical engine module 3 by rotation.

[0082] In the embodiment of the present application, the first tilt angle may be a horizontal tilt angle, such as Figure 3a the projection angle A shown; the second tilt angle may be a vertical tilt angle, such as Figure 4aThe projected included angle B shown. However, the first inclination angle and the second inclination angle are not limited to the horizontal inclination angle and the vertical inclination angle described in the embodiments of the present application. In other embodiments, the first inclination angle and the second inclination angle may be the inclination angles of the optical engine module 3 projected in other directions, so as to be changed according to the usage scenario.

[0083] Through the angle adjustment mechanism 40 of the present application, the display screen of the optical engine module 3 at different angles can be displayed. The display effect of multi-dimensional near-eye display of exhibits is improved, and users can obtain a multi-dimensional sense of experience.

[0084] The near-eye display device and the angle adjustment mechanism provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A near-eye display device, characterized in that, Comprising: A first carrier and a second carrier arranged adjacent to each other; The first carrier is used to carry the lens module; The second carrier is used to carry the optical engine module, and the second carrier includes a three-dimensional coordinate adjustment mechanism and an angle adjustment mechanism connected to the three-dimensional coordinate adjustment mechanism; The three-dimensional coordinate adjustment mechanism is used to drive the angle adjustment mechanism to move relative to the first carrier and change the position of the optical engine module relative to the lens module; The angle adjustment mechanism includes a first turntable and a second turntable arranged perpendicular to each other and capable of independent rotation, and the optical engine module is mounted on the second turntable; wherein, the first turntable is used to adjust the horizontal tilt angle of the optical engine module by rotation; the second turntable is used to adjust the vertical tilt angle of the optical engine module by rotation.

2. The near-eye display device according to claim 1, wherein The three-dimensional coordinate adjustment mechanism includes a moving seat, a first operating rod, a second operating rod and a third operating rod; wherein the first operating rod, the second operating rod and the third operating rod are used to adjust the three-dimensional spatial position of the moving seat.

3. The near-eye display device according to claim 2, wherein The angle adjustment mechanism further includes a turntable bracket, which is used to connect to the moving seat of the three-dimensional coordinate adjustment mechanism and can move along with the moving seat; The first turntable and the second turntable are rotatably arranged on the turntable bracket.

4. The near-eye display device according to claim 1, wherein The angle adjustment mechanism further includes a horizontal mounting table, a vertical mounting table, and a rotating frame arranged between the horizontal mounting table and the vertical mounting table; The first turntable is rotatably horizontally arranged on the horizontal mounting table; The second turntable is rotatably vertically arranged on the vertical mounting table; One end of the rotating frame is fixedly connected to the vertical mounting table; the other end of the rotating frame is fixedly connected to the first turntable; Wherein, the first turntable is used to rotate together with the rotating frame, the vertical mounting table, the second turntable and the optical engine module during rotation to adjust the horizontal tilt angle of the optical engine module; Wherein, the second turntable is used to rotate together with the optical engine module during rotation to adjust the vertical tilt angle of the optical engine module; and the vertical mounting table, the rotating frame and the first turntable all remain stationary.

5. The near-eye display device according to claim 4, wherein The first turntable is provided with a digital scale disk, and a first alignment block is arranged on the horizontal mounting table; the first alignment block is provided with an arrow pointer for pointing to the scale on the first turntable; The second turntable is provided with a digital scale disk, and a second alignment block is arranged on the vertical mounting table; the second alignment block is provided with an arrow pointer for pointing to the scale on the second turntable.

6. The near-eye display device according to claim 4, wherein The horizontal mounting table is indirectly connected to the three-dimensional coordinate adjustment mechanism through a support body; Alternatively, the horizontal mounting table is directly connected to the three-dimensional coordinate adjustment mechanism.

7. The near-eye display device according to claim 1, wherein both the first turntable and the second turntable are provided with laser marking discs; the near-eye display device is provided with a digital display for automatically displaying the horizontal tilt angle and the vertical tilt angle of the optical engine module.

8. The near-eye display device according to claim 1, wherein the first turntable is provided with a first operating handle for a user to rotate the first turntable; the second turntable is provided with a second operating handle for the user to rotate the second turntable.

9. The near-eye display device according to claim 1, wherein The near-eye display device further includes at least one of the following: a first stepper motor for driving the first turntable to rotate; a second stepper motor for driving the second turntable to rotate.

10. The near-eye display device according to claim 2, wherein the first operating rod, the second operating rod, and the third operating rod are all provided with scale marks; the first operating rod, the second operating rod, and the third operating rod are respectively independently rotated and adjusted to adjust the three-dimensional spatial position of the moving seat by driving with a stepper motor or manual operation.

11. The near-eye display device according to claim 2, wherein the three-dimensional coordinate adjustment mechanism further includes a fixed seat, and the moving seat is movably arranged on the fixed seat; the first operating rod, the second operating rod, and the third operating rod are arranged on the fixed seat to adjust the position of the moving seat.

12. The near-eye display device according to claim 1, wherein the near-eye display device further includes a base, and the first carrier and the second carrier are both independently arranged on the base.

13. The near-eye display device according to claim 1, wherein the first carrier includes a support rod and a display table arranged on the support rod; the support rod is arranged as an electrically telescopic rod; the display table is provided with at least one placement groove; wherein, the lens module stands upright in the placement groove.

14. The near-eye display device according to claim 1, wherein the optical engine module is detachably fixed to the second turntable.

15. The near-eye display device according to claim 1, wherein the near-eye display device is a Micro-LED near-eye display device; wherein, the lens module includes a sheet-like or plate-like optical lens, and the optical lens is a transparent waveguide lens; wherein, the optical engine module is a micro-projection light engine based on Micro-LED for generating images.

16. An angle adjustment mechanism, characterized in that, The angle adjustment mechanism is applicable to a near-eye display device, and the angle adjustment mechanism includes: a first turntable and a second turntable which are arranged perpendicular to each other and can rotate independently; the second turntable is used to carry the optical engine module, and the second turntable and the optical engine module can rotate together with the first turntable; wherein, the first turntable is used to adjust a first tilt angle of the optical engine module by rotation; Wherein, the second turntable is used to rotationally adjust the second tilt angle of the optical engine module.

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