Display device, display device anti-shake control method and vehicle

Abstract

The application discloses a display device, a display device anti-shake control method and a carrier, and belongs to the technical field of display devices. The display device comprises a base, a display screen, a first support, a second support, a first rotary motor and a second rotary motor, and the display screen is installed on the second support. The first rotary motor comprises a first body and a first shaft body rotationally connected with the first body. The first body is fixedly connected with the first support, the first shaft body is fixedly connected with the base through the first support, and the first rotary motor is an outer rotor motor. The second rotary motor comprises a second body and a second shaft body rotationally connected with the second body. The second body is installed on the first support, the second shaft body is drivingly connected with the second support through the first support, and the second rotary motor is an inner rotor motor. The application has the advantages of being capable of reducing image shaking and improving the viewing experience.

Description

Technical Field

[0001] This invention relates to the field of display device technology, and in particular to a display device, a method for controlling image stabilization of the display device, and a carrier. Background Technology

[0002] Display devices used in vehicles often experience image shaking due to bumps and vibrations during vehicle movement, affecting the viewing experience.

[0003] Therefore, it is necessary to provide a new display device to solve the above-mentioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a display device, a method for controlling image stabilization of the display device, and a carrier, aiming to solve the technical problem of poor viewing effect of display devices used in vehicles in the prior art.

[0005] To achieve the above objectives, according to some embodiments of this application, the present invention provides a display device comprising: Base; Display screen; First support; The second bracket is on which the display screen is mounted; A first rotary motor, comprising a first body and a first shaft rotatably connected to the first body; the first body is fixedly connected to the first bracket, and the first shaft passes through the first bracket and is fixedly connected to the base; the first rotary motor is an external rotor motor. The second rotary motor includes a second body and a second shaft rotatably connected to the second body. The second body is mounted on the first bracket, and the second shaft passes through the first bracket and is connected to the second bracket in a transmission manner. The second rotary motor is an internal rotor motor.

[0006] In some embodiments, the first bracket includes a first horizontal plate and two first vertical plates respectively disposed at both ends of the first horizontal plate and extending in the same direction, the first body is fixedly connected to the first horizontal plate, the first shaft passes through the first horizontal plate and is fixedly connected to the base, and the second body is installed on one of the first vertical plates. The second bracket includes a second horizontal plate and two second vertical plates respectively disposed at both ends of the second horizontal plate and extending in the same direction. The display screen is mounted on the second horizontal plate, and the second shaft passes through one of the first vertical plates and is connected to one of the second vertical plates in a transmission connection. The first bracket also includes a rotating shaft, which is disposed on another first vertical plate and rotatably connected to another second vertical plate. The rotating shaft and the second shaft are coaxially arranged.

[0007] In some embodiments, the first horizontal plate is provided with a plurality of first positioning rods, and the first body is provided with a plurality of first positioning holes, wherein the number of the first positioning rods and the number of the first positioning holes are equal and they are connected in a one-to-one correspondence.

[0008] In some embodiments, a ball is provided on the side of the first positioning rod, and a gap is provided between the ball and the top of the first positioning rod. The ball is retractably mounted on the side, and a slot that cooperates with the ball is provided in the first body.

[0009] In some embodiments, the first shaft is rotatably connected to the first horizontal plate, a first mating key is provided on the top end of the first shaft, and a first keyway is provided on the base to mate with the first mating key; and / or The first vertical plate is provided with a plurality of second positioning rods, and the second body is provided with a plurality of second positioning holes, wherein the number of second positioning rods and second positioning holes are equal and they are connected in a one-to-one correspondence; and / or, The second shaft is rotatably connected to one of the first vertical plates, and a second mating key is provided on the second shaft; a second keyway that mates with the second mating key is provided on one of the second vertical plates; and / or, The central axis of the first shaft is perpendicular to the central axis of the second shaft.

[0010] In some embodiments, the base includes a base body, a connector, and a third rotary motor. The first shaft passes through the first bracket and is fixedly connected to the connector. The third rotary motor includes a third body and a third shaft rotatably connected to the third body. The third body is mounted on the base body, and the third shaft is drivenly connected to the connector. The central axes of the first shaft, the second shaft, and the third shaft are arranged perpendicular to each other.

[0011] In some embodiments, the display device further includes a sensing unit and a controller. The substrate includes a substrate, an air pump, and an air layer communicating with the air pump. A support platform is provided on the side of the air layer away from the substrate. The first bracket is mounted on the support platform. The sensing unit is used to detect acceleration information and send it to the controller. The controller generates a compensation command based on the received acceleration information and sends the compensation command to the air pump. The air pump inflates or deflates the air layer according to the received compensation command to perform a compensation operation.

[0012] In some embodiments, the display screen includes: The outer casing has a receiving cavity and an opening communicating with the receiving cavity; The display panel is disposed at the opening; An image generation unit is disposed within the receiving cavity; First reflector and second reflector; The light emitted from the image generation unit is reflected by the first reflector and then enters the display panel. After being reflected by the display panel, it enters the second reflector, and after being reflected by the second reflector, it enters the display panel again and exits from the display panel. A beam emitter, the beam emitter being used to emit non-visible light toward the second reflector. A beam catcher, the beam catcher being used to receive the non-visible light reflected from the second reflector and acquire image information; The display device further includes a controller, which is connected to the first rotary motor, the second rotary motor, and the third rotary motor respectively. The controller is used to obtain jitter information based on the image information and standard image information, and generate adjustment commands to compensate for the jitter of the display screen.

[0013] According to some embodiments of this application, the present invention also proposes a method for stabilizing a display device, comprising the following steps: Control the beam emitter to emit non-visible light toward the second reflector; The beam catcher receives the non-visible light to acquire image information; The screen jitter information is obtained based on the deviation between the image information and the standard image information, and an adjustment command is generated to compensate for the screen jitter.

[0014] According to some embodiments of this application, the present invention also proposes a carrier having a housing having a mounting position formed thereon, on which the display device described in any of the preceding claims is mounted.

[0015] In the above technical solution of the present invention, the display device includes a base, a display screen, a first bracket, a second bracket, a first rotary motor, and a second rotary motor. The display screen is mounted on the second bracket. The first rotary motor includes a first body and a first shaft rotatably connected to the first body. The first body is fixedly connected to the first bracket, and the first shaft passes through the first bracket and is fixedly connected to the base. The first rotary motor is an external rotor motor. The second rotary motor includes a second body and a second shaft rotatably connected to the second body. The second body is mounted on the first bracket, and the second shaft passes through the first bracket and is drively connected to the second bracket. The second rotary motor is an internal rotor motor. This invention has the advantage of reducing image shake and improving the viewing experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a display device according to an embodiment of the present invention; Figure 2 for Figure 1 Another structural diagram from a different perspective; Figure 3 This is a partial structural schematic diagram of a display device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first rotary motor of a display device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the base and first keyway of a display device according to an embodiment of the present invention; Figure 6 This is a cross-sectional structural diagram of the first positioning rod and the first body of the display device according to the first embodiment of the present invention. Figure 7 This is another structural schematic diagram of a display device according to an embodiment of the present invention; Figure 8 for Figure 7 Another structural diagram from a different perspective; Figure 9 This is a schematic diagram of the structure of the base and the first rotary motor of a display device according to an embodiment of the present invention; Figure 10 for Figure 9 Another structural diagram from a different perspective; Figure 11 This is a schematic diagram of the structure of the substrate of a display device according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the base and display screen of a display device according to an embodiment of the present invention; Figure 13 This is a schematic flowchart of a display device anti-shake control method according to an embodiment of the present invention.

[0018] Explanation of icon numbers: 1000. Display device; 100. Base; 110. Substrate; 1101. Substrate; 1102. Air pump; 1103. Inflatable layer; 1104. Support platform; 120. Connector; 1201. Third horizontal plate; 1202. Third vertical plate; 130. Third rotary motor; 1301. Third body; 1302. Third shaft; 140. Elastic buffer rod; 200, Display screen; 210, Housing; 220, Display panel; 230, Image generation unit; 240, First reflector; 250, Second reflector; 260, Beam emitter; 270, Beam catcher; 300. First support; 310. First horizontal plate; 3101. First positioning rod; 3102. Ball bearing; 320. First vertical plate; 330. Rotating shaft; 400. Second support; 410. Second horizontal plate; 420. Second vertical plate; 500, First rotary motor; 510, First body; 5101, Slot; 5102, First positioning hole; 520, First shaft; 530, First mating key; 600. Second rotary motor; 610. Second body; 620. Second shaft; 700, First keyway; 800, Sensing unit; 900, Controller.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0025] Currently, most in-vehicle displays are flat, resulting in poor immersion and visual experience. While emerging telephoto displays can project images several meters away using optical systems to simulate a telescope effect and alleviate eye strain, they are extremely sensitive to vibration—even minor bumps in the vehicle can cause significant shaking of the virtual image, sometimes rendering it unviewable. This is particularly problematic in moving vehicles like cars and RVs, where road bumps, turns, and acceleration / deceleration generate multi-degree-of-freedom nonlinear swaying, a major challenge that existing anti-shake solutions struggle to overcome. The applicant notes the lack of a display device in current technology that can achieve both ultra-thin telephoto display and effective compensation for large-scale, complex bumps.

[0026] Therefore, the present invention proposes a display device.

[0027] Reference Figures 1 to 3According to some embodiments of this application, the present invention proposes a display device 1000, including a base 100, a display screen 200, a first bracket 300, a second bracket 400, a first rotary motor 500, and a second rotary motor 600. The display screen 200 is mounted on the second bracket 400. The first rotary motor 500 includes a first body 510 and a first shaft 520 rotatably connected to the first body 510. The first body 510 is fixedly connected to the first bracket 300, and the first shaft 520 passes through the first bracket 300 and is fixedly connected to the base 100. The first rotary motor 500 is an external rotor motor. The second rotary motor 600 includes a second body 610 and a second shaft 620 rotatably connected to the second body 610. The second body 610 is mounted on the first bracket 300, and the second shaft 620 passes through the first bracket 300 and is drively connected to the second bracket 400. The second rotary motor 600 is an internal rotor motor.

[0028] In this embodiment, the base 100 serves as the mounting foundation for the entire display device 1000, used for fixed connection with an external vehicle. For example, if the vehicle is a car, the display device 1000 can be applied to the car, and the base 100 can be installed inside the car's cockpit housing or the car seat headrest. The display device 1000 can be a remote image display device. The display screen 200 is used to display images and is indirectly mounted on the base 100 via the second bracket 400, the first bracket 300, and two rotary motors. The first rotary motor 500 is an external rotor motor; its larger first body 510 is fixedly connected to the first bracket 300, while its slender first shaft 520 passes through the first bracket 300 and is fixedly connected to the base 100. When the first rotary motor 500 operates, since the first shaft 520 is fixed to the base 100, according to the principle of an external rotor motor, the first body 510 will rotate relative to the base 100 around the central axis of the first shaft 520. This will drive the first bracket 300 fixed thereto, as well as the second rotary motor 600 and the display screen 200 mounted on the first bracket 300, to rotate together around this axis, thereby adjusting the horizontal orientation of the display device 1000 (for example, corresponding to the yaw direction of the vehicle). A specific application scenario could be compensating for large-range nonlinear swaying when a car turns. The second rotary motor 600 is an internal rotor motor, with its second body 610 fixed to the first bracket 300, and its second shaft 620 passing through the first bracket 300 and connected to the second bracket 400 on which the display screen 200 is mounted. When the second rotary motor 600 operates, the second shaft 620 rotates relative to the second body 610, thereby directly driving the second bracket 400 and the display screen 200 to rotate relative to the first bracket 300 around the central axis of the second shaft 620. This allows for adjustment of the pitch angle of the display device 1000 (e.g., corresponding to the vehicle's head-up and head-down directions). A specific application scenario could be compensating for large-scale nonlinear swaying during vehicle start-up or braking. By configuring the first rotary motor 500 as an external rotor motor and the second rotary motor 600 as an internal rotor motor, the layout of the two motors within a limited space can be optimized, resulting in a more compact overall structure. This facilitates the installation of the display device 1000 in confined spaces such as headrests. Furthermore, this orthogonal or cross-arranged dual-motor structure provides the display device 1000 with at least two degrees of freedom for active image stabilization. When the vehicle turns or experiences pitch and jolts, the display screen 200 can be driven to move in the opposite direction to compensate for the swaying of the virtual image, thereby improving the viewing experience. This embodiment has the advantage of reducing image swaying and improving the viewing experience.

[0029] Reference Figure 2 and Figure 3In some embodiments, the first support 300 includes a first horizontal plate 310 and two first vertical plates 320 respectively disposed at both ends of the first horizontal plate 310 and extending in the same direction. A first body 510 is fixedly connected to the first horizontal plate 310, and a first shaft 520 passes through the first horizontal plate 310 and is fixedly connected to the base 100. A second body 610 is installed on one of the first vertical plates 320. The second support 400 includes a second horizontal plate 410 and two second vertical plates 420 respectively disposed at both ends of the second horizontal plate 410 and extending in the same direction. The display screen 200 is installed on the second horizontal plate 410, and a second shaft 620 passes through one of the first vertical plates 320 and is drively connected to one of the second vertical plates 420. The first support 300 also includes a rotating shaft 330, which is disposed on another first vertical plate 320 and rotatably connected to another second vertical plate 420. The rotating shaft 330 and the second shaft 620 are coaxially arranged.

[0030] This embodiment, based on the aforementioned structure, specifies the specific shapes of the first support 300 and the second support 400, as well as the transmission method of the second rotary motor 600. The first support 300 is constructed as a "U" or "C" shaped structure, consisting of a first horizontal plate 310 and two first vertical plates 320. The two first vertical plates 320 are arranged in parallel, providing a stable support frame for the internal and upper mounting of other components. The first body 510 of the first rotary motor 500 is fixed to the first horizontal plate 310, and its first shaft 520 passes through the first horizontal plate 310 and is fixed to the base 100, realizing the layout of the first rotary motor 500 and lowering the overall center of gravity. The second body 610 of the second rotary motor 600 is mounted on one of the first vertical plates 320, and its second shaft 620 passes through the first vertical plate 320 and is connected to one of the second vertical plates 420 of the second support 400 for transmission. Here, the first vertical plates 320 and the second vertical plates 420 are arranged in parallel to each other. Meanwhile, a rotating shaft 330 is fixedly installed on the first vertical plate 320 on the other side. This rotating shaft 330 is rotatably connected to another second vertical plate 420 of the second bracket 400, and is coaxial with the second shaft 620. Thus, when the second rotary motor 600 drives the second shaft 620 to rotate, the second bracket 400, along with the display screen 200 on it, will pitch about the second shaft 620 and the rotating shaft 330 as a common axis of rotation 330. This "single-sided drive, double-sided support" design makes the rotation of the second bracket 400 and the display screen 200 more stable and reliable, avoiding the swaying and vibration that may occur in the cantilever structure, which is crucial for high-precision anti-shake control.

[0031] Reference Figure 3 and Figure 4In some embodiments, a plurality of first positioning rods 3101 are provided on the first horizontal plate 310, and a plurality of first positioning holes 5102 are provided on the first body 510. The number of first positioning rods 3101 and first positioning holes 5102 are equal and they are connected in a one-to-one correspondence.

[0032] In this embodiment, to ensure the installation accuracy and stability between the first body 510 of the first rotary motor 500 and the first bracket 300, a plurality of first positioning rods 3101 are provided on the first horizontal plate 310, and a plurality of first positioning holes 5102 are correspondingly provided on the first body 510. Precise positioning and fixing between the two are achieved by inserting the positioning rods into the positioning holes, and further tightening can be achieved using screws or other fasteners. This positioning and fixing installation method ensures the concentricity and relative positional relationship between the first body 510 and the first bracket 300, thereby ensuring that the rotation axis 330 of the first shaft 520 coincides with the designed axis, which is of positive significance for achieving precise anti-shake compensation control.

[0033] Reference Figure 4 and Figure 5 In some embodiments, the first shaft 520 is rotatably connected to the first horizontal plate 310, and a first mating key 530 is provided on the top end of the first shaft 520, and a first keyway 700 that mates with the first mating key 530 is provided on the base 100; and / or, a first vertical plate 320 is provided with a plurality of second positioning rods, and a second body 610 is provided with a plurality of second positioning holes, the number of second positioning rods and second positioning holes being equal and correspondingly connected; and / or, the second shaft 620 is rotatably connected to one of the first vertical plates 320, and a second mating key is provided on the second shaft 620, and a second keyway that mates with the second mating key is provided on a second vertical plate 420; and / or, the central axis of the first shaft 520 is perpendicular to the central axis of the second shaft 620.

[0034] This embodiment integrates multiple optional connection methods and positioning schemes. In some embodiments, the top end of the first shaft 520 engages with the first keyway 700 of the base 100 via a first mating key 530. This is a typical clamping structure that ensures no relative rotation occurs between the first shaft 520 and the base 100, thereby enabling the outer rotor mode of the first rotary motor to operate effectively. In other embodiments, a second positioning rod and a second positioning hole ensure precise and stable installation of the second body 610 of the second rotary motor 600 and the first vertical plate 320. In still other embodiments, the second shaft 620 engages with the second keyway of the second vertical plate 420 via a second mating key, ensuring that the second shaft 620 can stably drive the second bracket 400 to rotate, achieving torque transmission and reducing relative slippage. In some specific embodiments, the central axes of the first shaft 520 and the second shaft 620 are perpendicular to each other, meaning that the two rotational degrees of freedom are orthogonal, corresponding to the adjustment of the yaw angle and pitch angle, respectively. This orthogonal decoupling design simplifies the anti-shake control algorithm, allowing the movement in the two directions to be calculated and compensated independently without interference.

[0035] Reference Figure 6 In some embodiments, a ball bearing 3102 is provided on the side of the first positioning rod 3101, and a gap is provided between the ball bearing 3102 and the top of the first positioning rod 3101. The ball bearing 3102 is telescopically installed on the side, and a slot 5101 that cooperates with the ball bearing 3102 is provided inside the first body 510.

[0036] This embodiment further optimizes the structure of the first positioning rod 3101. A retractable ball bearing 3102 is provided on the side of the first positioning rod 3101, and the ball bearing 3102 maintains a certain distance from the top of the first positioning rod 3101. When the first body 510 is assembled with the first bracket 300, as the first positioning hole 5102 passes through the ball bearing 3102 and continues to move downwards, the ball bearing 3102 is first compressed into the first positioning rod 3101; after the first body 510 is installed in place, the ball bearing 3102 pops out and locks into the preset slot 5101 inside the first body 510. This structure forms a quick-locking mechanism, providing a clear "click" feel to indicate that the installation is in place, and locking more securely, making it difficult for the first body 510 to detach from the first bracket 300 along the central axis of the first shaft 520, greatly improving the convenience and reliability of assembly.

[0037] Reference Figure 7 and Figure 8In some embodiments, the base 100 includes a base 110, a connector 120, and a third rotary motor 130. A first shaft 520 passes through a first bracket 300 and is fixedly connected to the connector 120. The third rotary motor 130 includes a third body 1301 and a third shaft 1302 rotatably connected to the third body 1301. The third body 1301 is mounted on the base 110, and the third shaft 1302 is drivenly connected to the connector 120. The central axis of the first shaft 520, the central axis of the second shaft 620, and the central axis of the third shaft 1302 are arranged perpendicularly to each other.

[0038] This embodiment extends the base 100 by introducing a third rotary motor 130, thereby enabling the entire display device 1000 to have anti-shake capability with three degrees of rotational freedom. Specifically, the base 100 is no longer a simple fixed plate, but consists of a base 110, a connector 120, and a third rotary motor 130. The base 110 is used to fix it to an external carrier (such as the inside of a headrest), and the third body 1301 of the third rotary motor 130 is mounted on the base 110. The connector 120 serves as an intermediate component, being fixedly connected to the first shaft 520 and also drivingly connected to the third shaft 1302 of the third rotary motor 130. When the third rotary motor 130 operates, the third shaft 1302 drives the connector 120, thereby causing the entire upper first support 300, second support 400, and display screen 200 to rotate relative to the base 110 around the central axis of the third shaft 1302. By setting the central axes of the first axis 610, the second axis 620, and the third axis 1302 to be mutually perpendicular, it means that the three rotational degrees of freedom are orthogonal. For example, they can correspond to yaw (turning left and right), pitch (nodding up and down), and roll (tilting left and right), respectively. When the vehicle experiences complex three-dimensional shaking, such as simultaneous bumping, turning, and roll on a rough road, the three motors can work together, each independently outputting reverse compensation torque to stabilize the virtual image at all angles, greatly improving the anti-shake effect.

[0039] In some embodiments, a third mating key is provided at the top end of the third shaft 1302, and a third keyway that mates with the third mating key is provided on the connector 120; see reference Figure 9 and Figure 10 The connector 120 includes a third horizontal plate 1201 and a third vertical plate 1202 that are connected to each other. The third horizontal plate 1201 is arranged parallel to the base 110, and the vertical plate is connected to the third shaft 1302. An elastic buffer rod 140 is provided on the third horizontal plate 1201. The elastic buffer rod 140 extends from the vertical plate toward the base 110, and the elastic buffer plate is spaced apart from the base 110. A fixing frame is also provided on the base, and the third body 1301 is disposed in the fixing frame.

[0040] This embodiment is particularly suitable for display devices 1000 that are suspended from the ceiling. Figure 7 The illustration shows the hoisting method. This embodiment provides a detailed definition of the base 100 structure, including the third rotary motor 130. First, a third mating key and a third keyway ensure stable torque transmission between the third shaft 1302 and the connector 120. Second, the connector 120 is designed as a structure with a third horizontal plate 1201 and a third vertical plate 1202 that are nearly perpendicularly connected to each other. This structure is compact and has good mechanical properties. The third vertical plate 1202 is used to connect with the third shaft 1302 to receive power, while the third horizontal plate 1201 provides a plane parallel to the base 110 for mounting components such as the first bracket 300 above. To cope with severe vertical bumps that may occur during vehicle movement, an elastic buffer bar 140 is provided on the third horizontal plate 1201 of the connector 120. This buffer bar extends towards the base 110 but maintains a certain distance from the base 110. Under normal circumstances, the buffer rod does not contact the base 110. When encountering violent bumps that cause the display screen 200 to have a large vertical displacement tendency, the buffer rod will contact the base 110 and undergo elastic deformation to absorb some of the impact energy, playing a role in mechanical limiting and buffer protection, preventing excessive displacement from damaging the precision motor and / or the display screen 200. In addition, a fixing frame can be set on the base to install the third body 1301 of the third rotary motor 130 inside it, which can effectively protect the motor and accurately position and fix the motor, enhancing the rigidity and shock resistance of the entire base 100.

[0041] Reference Figure 11 and Figure 12 In some embodiments, the display device 1000 further includes a sensing unit 800 and a controller 900. The substrate 110 includes a substrate 1101, an air pump 1102, and an air-filled layer 1103 connected to the air pump 1102. A support platform 1104 is provided on the side of the air-filled layer 1103 away from the substrate 1101. A first bracket 300 is mounted on the support platform 1104. The sensing unit 800 is used to detect acceleration information and send it to the controller 900. The controller 900 generates a compensation command based on the received acceleration information and sends the compensation command to the air pump 1102. The air pump 1102 inflates or draws air from the air-filled layer 1103 according to the received compensation command to perform a compensation operation.

[0042] This embodiment introduces a vertical anti-shake mechanism and combines sensors with a control closed loop. Specifically, the display device 1000 includes a sensing unit 800 (e.g., an accelerometer or inertial measurement unit) for sensing vibration acceleration and a controller 900 for decision-making. The structure of the substrate 110 is further extended to include a substrate 1101, an air pump 1102, and an air-filled layer 1103, with a support platform 1104 above the air-filled layer 1103. The first bracket 300 and all components above it are mounted on the support platform 1104. During operation, the sensing unit 800 detects the acceleration information (especially vertical jolt acceleration) of the display screen 200 housing 210 in real time. The acceleration information includes the acceleration direction and magnitude, and sends this information to the controller 900. The controller 900 determines the direction and magnitude that need compensation according to a preset algorithm and generates a corresponding compensation command. After receiving the command, the air pump 1102 rapidly inflates or deflates the air-filled layer 1103. When the air layer 1103 inflates, the support platform 1104 is raised; when the air layer 1103 deflates, the support platform 1104 descends. This active air-float adjustment allows for real-time reverse compensation for the vertical displacement of the display screen 200 caused by road bumps, ensuring the display screen 200 remains relatively stable in space. Compared to purely mechanical structures, air-float compensation offers advantages such as fast response, frictionless operation, and good vibration isolation, making it particularly suitable for compensating for high-frequency, small-amplitude vertical bumps. Specifically, the controller 900 can be located within the display screen 200 or at other locations within the display device 1000.

[0043] Reference Figure 11 In some embodiments, there are multiple air pumps 1102 and multiple air layers 1103, and they are connected in a one-to-one correspondence. The support platform 1104 is fitted with the air layer 1103.

[0044] This embodiment features multiple air pumps 1102 and multiple air layers 1103, with each air pump 1102 independently controlling one air layer 1103. The support platform 1104 is in contact with these air layers 1103, meaning that different areas of the support platform 1104 can be independently supported by different air layers 1103. For example, four air layers 1103 can be provided, located at the four corners of the support platform 1104. When the vehicle experiences asymmetrical bumps (e.g., one wheel runs over a bump), the sensing unit 800 can detect the tilting trend of the platform, and the controller 900 can control the corresponding air pump 1102 to perform differentiated inflation or deflation, thereby actively adjusting the levelness of the support platform 1104 and suppressing the tilting and shaking of the display screen 200. This multi-point, independent active air buoyancy control can compensate not only for vertical displacement but also for angular displacement around the horizontal axis, such as roll and pitch, achieving higher precision multi-dimensional anti-shake.

[0045] In some embodiments, there are four air pumps 1102 and four air layers 1103, with the four air layers 1103 distributed at the four apex positions of the support platform 1104.

[0046] Placing the four inflatable layers 1103 at the four apex corners of the support platform 1104 is one of the most mechanically stable layouts. This layout allows the control system to arbitrarily change the spatial attitude (including vertical height, pitch angle, and roll angle) of the support platform 1104 by adjusting the height of the four apex corners, thereby achieving full compensation for the vehicle's three degrees of freedom (vertical, pitch, and roll) sway. For example, when the front of the vehicle is raised, the two inflatable layers 1103 on the front can be deflated while the two inflatable layers 1103 on the rear are inflated, causing the display screen 200 to tilt backward; when the vehicle body tilts to the left, the two inflatable layers 1103 on the left can be deflated while the two inflatable layers 1103 on the right are inflated, causing the display screen 200 to tilt to the right to counteract the tilt. This four-corner independent control scheme provides a solid hardware foundation for high-precision, multi-dimensional active anti-shake technology.

[0047] Reference Figure 12 In some embodiments, the display screen 200 includes a housing 210, a display panel 220, an image generating unit 230, a first reflector 240, a second reflector 250, a beam emitter 260, and a beam catcher 270. The display device 1000 also includes a controller 900. The housing 210 forms a receiving cavity, and the housing 210 has an opening communicating with the receiving cavity. The display panel 220 is disposed at the opening, and the image generating unit 230 is disposed inside the receiving cavity. The light emitted from the image generating unit 230 is reflected by the first reflector 240 and then enters the display panel 220. After being reflected by the display panel 220, it enters the second reflector 250. After being reflected by the second reflector 250, it enters the display panel 220 again and exits from the display panel 220. The beam emitter 260 is used to emit non-visible light toward the second reflector 250, and the beam catcher 270 is used to receive the non-visible light reflected from the second reflector 250 and acquire image information; the controller 900 is connected to the first rotary motor 500, the second rotary motor 600 and the third rotary motor 130 respectively, and the controller 900 is used to acquire jitter information according to the image information and standard image information, and generate adjustment commands to compensate for the jitter of the display screen 200.

[0048] Reference Figure 12When the human eye observes from point A, the virtual image seen is image B, and the image information acquired by the beam catcher 270 is virtual image C. In this embodiment, the housing 210, display panel 220, image generation unit 230 (such as a micro-display 200), first reflector 240 (such as a plane mirror), and second reflector 250 (such as a concave mirror) together constitute a compact optical path for distant image display. The light emitted by the image generation unit 230 is first reflected by the first reflector 240, then reflected by the display panel 220 to the second reflector 250, and finally reflected by the second reflector 250 and passes through the display panel 220 into the human eye. This secondary reflection optical path design allows the thickness of the entire optical module to be controlled within 15 centimeters while achieving a virtual image distance of 1-4 meters, meeting the stringent requirements for lightweight and thin automotive applications. To monitor the jitter of this precision optical system in real time, a beam emitter 260 and a beam catcher 270 are also integrated inside the module. The beam emitter 260 emits non-visible light towards the second reflector 250. Using non-visible light avoids affecting the human eye's view of the image. The beam emitter 260 can be an infrared laser or an infrared laser diode, the beam catcher 270 can be an infrared camera or an infrared video camera, and the non-visible light can be infrared light. This non-visible light is reflected by the second reflector 250 and received by the beam catcher 270 to form image information. The controller 900 compares this real-time image information with a pre-stored standard image when the display device 1000 is completely stationary. Since the second reflector 250 is a critical component in the optical path, any slight jitter will cause a significant change in the position of the reflected light spot. Therefore, by analyzing the deviation between the two image information, the controller 900 can calculate the current jitter vector of the display module with extremely high sensitivity. The jitter vector includes angle and displacement. Based on this high-precision jitter information, the controller 900 then drives the first rotary motor 500, the second rotary motor 600, and the third rotary motor 130 to perform fine, closed-loop reverse compensation. Compared to using only inertial sensors, this direct shake capture method based on optical images directly measures the shake of the final imaging result, eliminates transmission chain errors, and achieves end-to-end image stabilization control from sensing to correction, resulting in a qualitative improvement in both the accuracy and effectiveness of image stabilization.

[0049] Reference Figure 13 , Figure 13 This is a schematic flowchart of a stabilization control method for a display device 1000 according to an embodiment of the present invention. The stabilization control method for the display device 1000 includes the following steps: S100, control the beam emitter 260 to emit non-visible light toward the second reflector 250; S200, beam catcher 270 receives non-visible light to acquire image information; S300 obtains the jitter information of the display screen 200 based on the deviation between the image information and the standard image information, and generates an adjustment command to compensate for the jitter of the display screen 200.

[0050] This embodiment provides an intelligent image stabilization control method based on optical jitter capture. First, the controller 900 activates the built-in beam emitter 260, continuously emitting non-visible light towards the second reflector 250 within the telephoto display module. Second, the beam catcher 270 captures in real-time images of the light spot or light distribution reflected back from the second reflector 250, generating corresponding real-time image information. Then, as a core step, the controller 900 compares and calculates the acquired real-time image information with pre-stored standard image information, which is an image captured by the device in an ideal static state. By analyzing the pixel-level offset, rotation, or deformation of the real-time image relative to the standard image, the three-dimensional jitter vector (e.g., pitch, yaw, tilt angles, and vertical displacement) of the second reflector 250 and even the entire optical system can be deduced. Based on this precise jitter vector, the controller 900 uses a preset control algorithm (such as PID control) to generate compensation commands (such as target angle, rotational speed, or inflation volume) for each actuator (such as the first rotary motor 500, the second rotary motor 600, the third rotary motor 130, or the air pump 1102). Finally, each actuator synchronously executes the compensation commands, driving the display screen 200 to move in the opposite direction of the jitter, thereby canceling external disturbances and ensuring that the virtual image entering the human eye remains stable. The entire method forms a closed-loop optical servo system of emission-capture-comparison-calculation-compensation. Its advantages lie in directly monitoring and correcting the imaging results, high compensation accuracy, and good real-time performance, making it particularly suitable for distant image display scenarios with extremely high requirements for image stability. In some specific embodiments, the jitter situation is judged by comparing the actual detected pattern information with the standard image information. Nine monitoring point infrared images can be taken, and the effect of servo motor anti-shake is judged based on the displacement difference between the detection points of the actual pattern information and the standard image information, thereby optimizing the servo motor anti-shake strategy.

[0051] According to some embodiments of this application, the present invention also proposes a vehicle having a housing with a mounting position formed thereon, on which the display device 1000 of any of the above-mentioned claims is mounted. Specifically, the vehicle can be any of a car, RV, drone, ship, construction machinery, robot, agricultural machinery, motorcycle, bicycle, or train. Taking a car as an example, a mounting position can be specifically provided in the interior housing of the car, for example, behind the headrest of the front seat, the roof, or the passenger dashboard. The shape, size, and fixing interface of this mounting position match the base 100 of the aforementioned display device 1000, so that the display device 1000 can be stably and reliably installed inside the car. Since cars encounter various complex dynamic conditions such as starting, braking, turning, and bumps during driving, applying the display device 1000 of the present invention to a car can fully utilize its advantages of multi-degree-of-freedom active stabilization and thinness. When passengers view the 1000 display device during their journey, even when the vehicle is traveling on uneven roads or undergoing aggressive maneuvers, the virtual image presented in front of them remains stable and clear, greatly enhancing the riding experience and potentially alleviating motion sickness caused by screen shakiness. Furthermore, its slim and lightweight design allows it to be perfectly integrated into limited spaces such as headrests, without occupying additional cabin space, making it highly valuable and commercially viable.

[0052] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A display device, characterized in that, include: Base; Display screen; First support; The second bracket is on which the display screen is mounted; A first rotary motor, comprising a first body and a first shaft rotatably connected to the first body; the first body is fixedly connected to the first bracket, and the first shaft passes through the first bracket and is fixedly connected to the base; the first rotary motor is an external rotor motor. The second rotary motor includes a second body and a second shaft rotatably connected to the second body. The second body is mounted on the first bracket, and the second shaft passes through the first bracket and is connected to the second bracket in a transmission manner. The second rotary motor is an internal rotor motor.

2. The display device according to claim 1, characterized in that, The first bracket includes a first horizontal plate and two first vertical plates respectively disposed at both ends of the first horizontal plate and extending in the same direction. The first body is fixedly connected to the first horizontal plate, the first shaft passes through the first horizontal plate and is fixedly connected to the base, and the second body is installed on one of the first vertical plates. The second bracket includes a second horizontal plate and two second vertical plates respectively disposed at both ends of the second horizontal plate and extending in the same direction. The display screen is mounted on the second horizontal plate, and the second shaft passes through one of the first vertical plates and is connected to one of the second vertical plates in a transmission connection. The first bracket also includes a rotating shaft, which is disposed on another first vertical plate and rotatably connected to another second vertical plate. The rotating shaft and the second shaft are coaxially arranged.

3. The display device according to claim 2, characterized in that, The first horizontal plate is provided with a plurality of first positioning rods, and the first body is provided with a plurality of first positioning holes. The number of the first positioning rods and the number of the first positioning holes are equal and they are connected in a one-to-one correspondence.

4. The display device according to claim 3, characterized in that, The first positioning rod has a ball bearing on its side, and there is a gap between the ball bearing and the top of the first positioning rod. The ball bearing is retractably mounted on the side, and the first body has a slot that cooperates with the ball bearing.

5. The display device according to claim 2, characterized in that, The first shaft is rotatably connected to the first horizontal plate, and a first mating key is provided on the top end of the first shaft; the base is provided with a first keyway that mates with the first mating key; and / or, The first vertical plate is provided with a plurality of second positioning rods, and the second body is provided with a plurality of second positioning holes, wherein the number of second positioning rods and second positioning holes are equal and they are connected in a one-to-one correspondence; and / or, The second shaft is rotatably connected to one of the first vertical plates, and a second mating key is provided on the second shaft; a second keyway that mates with the second mating key is provided on one of the second vertical plates; and / or, The central axis of the first shaft is perpendicular to the central axis of the second shaft.

6. The display device according to claim 1, characterized in that, The base includes a base body, a connector, and a third rotary motor. The first shaft passes through the first bracket and is fixedly connected to the connector. The third rotary motor includes a third body and a third shaft rotatably connected to the third body. The third body is mounted on the base body, and the third shaft is drivenly connected to the connector. The central axes of the first shaft, the second shaft, and the third shaft are arranged perpendicular to each other.

7. The display device according to claim 6, characterized in that, The display device further includes a sensing unit and a controller. The substrate includes a substrate, an air pump, and an air layer communicating with the air pump. A support platform is provided on the side of the air layer away from the substrate. The first bracket is mounted on the support platform. The sensing unit is used to detect acceleration information and send it to the controller. The controller generates a compensation command based on the received acceleration information and sends the compensation command to the air pump. The air pump inflates or deflates the air layer according to the received compensation command to perform a compensation operation.

8. The display device according to any one of claims 1 to 6, characterized in that, The display screen includes: The outer casing has a receiving cavity and an opening communicating with the receiving cavity; The display panel is disposed at the opening; An image generation unit is disposed within the receiving cavity; First reflector and second reflector; The light emitted from the image generation unit is reflected by the first reflector and then enters the display panel. After being reflected by the display panel, it enters the second reflector, and after being reflected by the second reflector, it enters the display panel again and exits from the display panel. A beam emitter, the beam emitter being used to emit non-visible light toward the second reflector. A beam catcher, the beam catcher being used to receive the non-visible light reflected from the second reflector and acquire image information; The display device further includes a controller, which is connected to the first rotary motor, the second rotary motor, and the third rotary motor respectively. The controller is used to obtain jitter information based on the image information and standard image information, and generate adjustment commands to compensate for the jitter of the display screen.

9. A method for stabilizing a display device, characterized in that, Includes the following steps: Control the beam emitter to emit non-visible light toward the second reflector; The beam catcher receives the non-visible light to acquire image information; The screen jitter information is obtained based on the deviation between the image information and the standard image information, and an adjustment command is generated to compensate for the screen jitter.

10. A vehicle, characterized in that, The carrier is provided with a housing, on which a mounting position is formed, and the display device according to any one of claims 1 to 8 is mounted.

Images