Display device

Abstract

The application provides a display device, comprising a plurality of display screens, an adjusting mechanism for adjusting the pose of each display screen, and a control device, the adjusting mechanism adjusts the pose of each display screen based on a first adjusting parameter under a first adjusting link and adjusts the pose of each display screen based on a second adjusting parameter under a second adjusting link, the control device is configured with a display pose adjusting function, the display pose adjusting function comprises: determining the first adjusting parameter and / or the second adjusting parameter according to a target position of a target user and an initial pose of each display screen, and triggering the adjusting mechanism to switch to a corresponding adjusting link. The display device of the application can automatically switch the pose adjusting link of the plurality of display screens through the display pose adjusting function of the control device, automatically adjust the pose of each display screen, and compared with the existing display device, the display device of the application is simpler and more convenient to use, and the use experience is better.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of display devices, and more particularly to a display device. BACKGROUND

[0002] In today's rapid development of the Internet, massive information has become a feature of the current network era. For users, how to face the explosive growth of massive information, and let information serve people instead of being overwhelmed and controlled by information, has become a crucial problem that needs to be solved. The use of two-screen and multi-screen displays enables users to break free from the limitations of single-screen computers. There are many applications in the securities industry, video surveillance, computer programming, etc. Multi-screen computers refer to a complete system that realizes multi-screen display of multiple displays simultaneously through a host computer, generally including a host computer, multiple displays, a support, and a matching keyboard and mouse. Using a set of keyboard and mouse, each screen can be quickly switched, and each screen can completely independently display and run its own program. The display device with multiple display screens can greatly improve the work efficiency of the user and increase the comfort. The number of times the user switches between different documents and application programs is reduced or even completely avoided, thereby shortening the time required to complete each task.

[0003] However, the display devices with multiple display screens on the market currently rely on manual adjustment of the mounting position and angle of each display screen one by one, and cannot automatically adjust the position and angle of each display screen. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a display device to solve the technical problem that the display device with multiple display screens in the prior art cannot be automatically adjusted.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0006] A display device is provided, comprising multiple display screens, an adjustment mechanism for adjusting the pose of each display screen, and a control device. The adjustment mechanism adjusts the pose of each display screen based on a first adjustment parameter under a first adjustment link and adjusts the pose of each display screen based on a second adjustment parameter under a second adjustment link. The control device is configured with a display pose adjustment function, which includes determining the first adjustment parameter and / or the second adjustment parameter according to the target position of a target user and the initial pose of each display screen, and triggering the adjustment mechanism to switch to the corresponding adjustment link.

[0007] As a further improvement of the above technical solution:

[0008] Optionally, the control device comprises:

[0009] a target user determination unit configured to determine a target user, the target user being a real-time user gazing at the display device;

[0010] a target position determination unit configured to determine a target position, the target position being a real-time position of the target user;

[0011] a parameter determination unit configured to determine a first adjustment parameter and / or a second adjustment parameter based on the target position and initial poses of the display screens;

[0012] an execution unit configured to trigger the adjustment mechanism to switch to a corresponding adjustment link based on the first adjustment parameter and / or the second adjustment parameter determined by the parameter determination unit.

[0013] Optionally, the adjustment mechanism comprises:

[0014] a display screen mounting base fixedly connected with the display screen;

[0015] a support arm providing a support force for the display screen through the display screen mounting base;

[0016] a power input mechanism;

[0017] a first transmission mechanism configured to receive power input by the power input mechanism and transmit the power to the display screen mounting base so as to rotate the display screen mounting base relative to the support arm;

[0018] the power input mechanism, the first transmission mechanism and the display screen mounting base constitute the first adjustment link.

[0019] Optionally, the adjustment mechanism further comprises:

[0020] a base;

[0021] a second transmission mechanism configured to receive power input by the power input mechanism and transmit the power to the second adjustment link so as to rotate the first adjustment link, the display screen and the support arm together relative to the base;

[0022] the power input mechanism, the second transmission mechanism and the base constitute the second adjustment link.

[0023] a rotation direction of the first adjustment link, the display screen and the support arm together relative to the base is different from a rotation direction of the display screen mounting base relative to the support arm.

[0024] Optionally, both the second transmission mechanism and the first transmission mechanism receive power input by the power input mechanism in a vertical axial rotation manner.

[0025] Optionally, the first transmission mechanism and the second transmission mechanism each have a vertical rotating shaft, the rotating shaft of the first transmission mechanism is defined as a first rotating shaft, and the rotating shaft of the second transmission mechanism is defined as a second rotating shaft, the power input mechanism comprises a driving transmission member,

[0026] The first rotating shaft and the second rotating shaft are coaxially arranged, the driving transmission member moves axially between the first rotating shaft and the second rotating shaft and selectively engages with one of the first rotating shaft and the second rotating shaft to realize switching of power between the first transmission mechanism and the second transmission mechanism.

[0027] Optionally, the first transmission mechanism comprises

[0028] A transmission wheel is installed on the first rotating shaft;

[0029] A transmission shaft is in transmission connection with the transmission wheel at one end and in transmission connection with the display screen mounting seat at the other end.

[0030] Optionally, the second transmission mechanism comprises:

[0031] A worm is installed on the second rotating shaft;

[0032] A worm wheel is fixedly connected to the base and engages with the worm.

[0033] Optionally, the power input mechanism further comprises a driving wheel and a driving member, the driving member is in transmission connection with the driving wheel, the driving wheel is located between the first rotating shaft and the second rotating shaft, and the driving transmission member is always in engagement with the driving wheel.

[0034] Optionally, the execution unit is an electric control force applying assembly, and the electric control force applying assembly comprises:

[0035] A magnetic body is connected to the driving transmission member;

[0036] An electromagnet magnetically acts on the magnetic body to drive the driving transmission member to move axially between the first rotating shaft and the second rotating shaft and selectively engage with one of the first rotating shaft and the second rotating shaft.

[0037] Optionally, the electric control force applying assembly further comprises a push rod, one end of the push rod is connected to the driving transmission member, the other end of the push rod is connected to the magnetic body, a fulcrum is arranged on the push rod, and the distance from the driving transmission member to the fulcrum is less than the distance from the magnetic body to the fulcrum.

[0038] The display device provided by the application has the following advantages:

[0039] The display device provided by the application comprises a plurality of display screens, an adjusting mechanism for adjusting the poses of the display screens, and a control device. The adjusting mechanism adjusts the poses of the display screens based on a first adjusting parameter under a first adjusting link and adjusts the poses of the display screens based on a second adjusting parameter under a second adjusting link. The control device is configured with a display pose adjusting function, which comprises determining the first adjusting parameter and / or the second adjusting parameter according to a target position of a target user and initial poses of the display screens, and triggering the adjusting mechanism to switch to a corresponding adjusting link.

[0040] The control device determines the first adjusting parameter according to the target position of the target user and the initial poses of the display screens, and triggers the adjusting mechanism to switch to the first adjusting link based on the first adjusting parameter, so that the display screens are automatically adjusted from the initial poses to optimal poses with optimal viewing distances and angles through the first adjusting link. Alternatively, the control device determines the second adjusting parameter according to the target position of the target user and the initial poses of the display screens, and triggers the adjusting mechanism to switch to the second adjusting link based on the second adjusting parameter, so that the display screens are automatically adjusted from the initial poses to optimal poses with optimal viewing distances and angles through the second adjusting link. The display device of the application can automatically switch the adjusting links of the poses of the display screens through the display pose adjusting function of the control device, and automatically adjust the poses of the display screens. Compared with the existing display device, the display device of the application is simpler and more convenient to use, and has better user experience. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 A perspective structural schematic diagram of the display device provided by the application Figure 1 ;

[0043] Figure 2 A perspective structural schematic diagram of the display device provided by the application Figure 2 ;

[0044] Figure 3 A side structural schematic diagram of the display device provided by the application Figure 1 ;

[0045] Figure 4 A top structural schematic diagram of the display device provided by the application Figure 1 ;

[0046] Figure 5 A side view structure schematic of the display device provided in the present application Figure 2 ;

[0047] Figure 6 A top view structure schematic of the display device provided in the present application Figure 2 ;

[0048] Figure 7 A split structure schematic of the display device provided in the present application

[0049] Figure 8 A partial enlarged structure schematic in Figure 7 ;

[0050] Figure 9 A partial enlarged structure schematic of the display device provided in the present application Figure 1 ;

[0051] Figure 10 A partial enlarged structure schematic of the display device provided in the present application Figure 2 ;

[0052] Figure 11 A partial enlarged structure schematic of the display device provided in the present application Figure 3 ;

[0053] Figure 12 A first driving conducting structure schematic of the display device provided in the present application Figure 1 ;

[0054] Figure 13 A first driving conducting structure schematic of the display device provided in the present application Figure 2 ;

[0055] Figure 14 A second driving conducting structure schematic of the display device provided in the present application Figure 1 ;

[0056] Figure 15 A second driving conducting structure schematic of the display device provided in the present application Figure 2 ;

[0057] Figure 16 A third driving conducting structure schematic of the display device provided in the present application Figure 1 ;

[0058] Figure 17 A third driving conducting structure schematic of the display device provided in the present application Figure 2 ;

[0059] Figure 18 A perspective structure schematic of the display device provided in the present application Figure 3 ;

[0060] Figure 19 A perspective view of a display device provided for the present application Figure 4 ;

[0061] Figure 20 A perspective view of a display device provided for the present application Figure 5 .

[0062] In the drawings:

[0063] 1, display screen; 2, adjusting mechanism; 21, display screen mounting seat; 211, second bevel gear; 22, support arm; 23, first transmission mechanism; 231, first rotating shaft; 232, transmission wheel; 233, transmission shaft; 2331, first shaft section; 2332, second shaft section; 2333, first bevel gear; 234, reverse wheel; 24, base; 25, second transmission mechanism; 251, second rotating shaft; 252, worm; 253, worm wheel; 26, mounting base; 3, control device; 4, power input mechanism; 41, driving conductor; 42, driving wheel; 43, driving piece; 5, electric control force applying assembly; 51, magnetic body; 52, electromagnet; 53, push rod; 54, shift fork; 6, camera. DETAILED DESCRIPTION

[0064] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0065] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0066] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0067] In addition, the terms "first", "second", "third", etc. are used herein only to describe different instances, and are not used to indicate or imply relative importance or a number of indicated technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0068] At present, most of the display devices with multiple display screens 1 on the market rely on manual adjustment of the position and angle of each display screen 1, and cannot automatically adjust the position and angle of each display screen 1. During the research and development process, the applicant initially thought that all display screens 1 could be driven by motors to achieve simple translation or lifting motion, but this could not meet the angle adjustment function of the display screen 1. The applicant also thought of setting multiple driving devices to drive each display screen 1 to move. Although this could change the position and angle of the display screen 1, it required a large number of driving devices, which not only increased the production and use costs, but also increased the complexity of the display device production and use, and affected the use and promotion of the display device with multiple display screens 1. Therefore, after verifying multiple schemes, the applicant finally innovated the display device of the present application. For details, please refer to the following content.

[0069] For ease of explanation, two spatial coordinate systems need to be constructed, as shown in Figure 1 and Figure 2 One is to construct a world coordinate system corresponding to the length, width and height directions based on the length, width and height directions of the target user or use scene, and the three reference axes of the world coordinate system are respectively U axis, V axis and W axis. The second is to construct a display plane coordinate system based on the display plane of the display screen 1, wherein the X axis direction corresponds to the length direction of the display plane; the Y axis direction corresponds to the width direction of the display plane; and the Z axis direction corresponds to the normal direction of the display plane. It needs to be explained that when there are multiple display screens 1, each display screen 1 has its own display plane coordinate system. When adjusting the position and angle of each display screen 1, since the position and angle of the display plane change, only the display plane coordinate system based on the display plane will change, and the world coordinate system based on the length, width and height directions of the target user or use scene will not change. Each display screen 1 moves or rotates in its corresponding display plane coordinate system at different positions and angles.

[0070] Under the premise that the model, panel type and other internal factors of the display screen 1 remain unchanged, the display plane of the display screen 1 and the visual distance and visual angle of the target user mainly affect the visual effect of the display screen 1. For example, a suitable visual distance can not only ensure that the target user can clearly see all the information on the display screen 1, but also avoid discomfort of the eyes of the target user; a suitable visual angle can not only ensure that all the information on the display screen 1 can be projected into the visual range of the target user, but also avoid discomfort such as glare and reflection of the display plane.

[0071] Therefore, the inventor finds through earnest research that, in order to achieve the best visual effect during use of the display screen 1, the most adjustable degrees are the lifting of the W axis (i.e. the lifting of the display plane), the rotation of the X axis (i.e. the angle of forward inclination or backward inclination of the display plane), and the rotation of the Y axis (i.e. the angle of left inclination or right inclination of the display plane).

[0072] Please refer to Figure 1 and Figure 9 The application provides a display device, which comprises a plurality of display screens 1, an adjusting mechanism 2 for adjusting the pose of each display screen 1, and a control device 3. The adjusting mechanism 2 adjusts the pose of each display screen 1 based on a first adjusting parameter under a first adjusting link and adjusts the pose of each display screen 1 based on a second adjusting parameter under a second adjusting link. The control device 3 is configured with a display pose adjusting function, which comprises determining the first adjusting parameter and / or the second adjusting parameter according to the target position of a target user and the initial pose of each display screen 1, and triggering the adjusting mechanism 2 to switch to the corresponding adjusting link.

[0073] Specifically, the control device 3 determines the first adjusting parameter according to the target position of a target user and the initial pose of each display screen 1, and triggers the adjusting mechanism 2 to switch to the first adjusting link based on the first adjusting parameter, so that each display screen 1 is automatically adjusted from the initial pose of each display screen 1 to an optimal pose with the best visual distance and visual angle through the first adjusting link; or the control device 3 determines the second adjusting parameter according to the target position of a target user and the initial pose of each display screen 1, and triggers the adjusting mechanism 2 to switch to the second adjusting link based on the second adjusting parameter, so that each display screen 1 is automatically adjusted from the initial pose of each display screen 1 to an optimal pose with the best visual distance and visual angle through the second adjusting link.

[0074] It should be noted that the initial pose can refer to the position and orientation of each display screen 1 on the display device before the pose adjustment. In some embodiments of the present application, the control device 3 can record the pose of each display screen 1 after completing the adjustment of the pose each time, and the last recorded pose can be used as the initial pose when adjusting the pose of each display screen 1 next time. If the adjustment link for which the pose adjustment is required is more than one, the display device can sequentially adjust the pose at each adjustment link, that is, after completing the pose adjustment at one adjustment link, the pose at the next adjustment link is continued to be adjusted. In this way, the pose adjustment at all adjustment links is completed. The selection order of the adjustment link during the adjustment of the pose can be determined according to the actual situation.

[0075] The display device of the present application can automatically switch the pose adjustment link of the plurality of display screens 1 and automatically adjust the pose of each display screen 1 through the display pose adjustment function of the control device 3. Compared with the existing display device, the display device of the present application is easier to use and has better user experience.

[0076] In one embodiment, the control device 3 includes a target user determination unit, a target position determination unit, a parameter determination unit, and an execution unit. The target user determination unit is used to determine the target user, which is the real-time user gazing at the display device; the target position determination unit is used to determine the target position, which is the real-time position of the target user; the parameter determination unit determines the first adjustment parameter and / or the second adjustment parameter based on the target position and the initial pose of each display screen 1; and the execution unit triggers the adjustment mechanism 2 to switch to the corresponding adjustment link based on the first adjustment parameter and / or the second adjustment parameter determined by the parameter determination unit.

[0077] The target user includes but is not limited to the real-time user gazing at the display device, and can also be the real-time user located in the display area of the display device. The real-time position can be the position of the user reference point of the target user. The user reference point can include but is not limited to the center of gravity point of the user, the center point of the face, the center point of the line connecting the eyes of the user, or other feature points. The target user determination unit and the target position determination unit can determine the real-time position of the target user through image recognition, infrared ranging, camera 6, and other ranging methods. When the center point of the line connecting the eyes of the user is used as the user reference point, the target user can have better viewing effect after the pose adjustment is completed. The first adjustment parameter and the second adjustment parameter can be the step or rotation angle required by the adjustment mechanism 2 to adjust. The control device 3 is specifically a circuit board, a chip, or a processor, and the like.

[0078] Please refer to Figure 18 and Figure 19The display device is provided with six display screens 1, and every two display screens 1 arranged horizontally form a group, and three groups of display screens are arranged in sequence along the height direction of the display device as an upper display screen group, a middle display screen group and a lower display screen group. In the initial state, the display planes of the display screens 1 are parallel to each other and face the front of the display device.

[0079] When the left or right inclined posture of the display screen 1 is adjusted, the target user determination unit determines that the real-time user gazing at the display device is the target user, and the target position determination unit determines the real-time position of the target user and the visual direction (S1) of the human eye of the target user, and the initial posture angle (η 左 , η 右 ) of the display screen 1 in the same display screen group located on the left and right sides. The parameter determination unit subtracts the initial posture angle (η 左 , η 右 ) of each display screen 1 from 90° (the best visual angle reference) respectively to obtain the first adjustment parameter (Δη 左 , Δη 右 ) of the rotation of each display screen group around the Y axis, and the execution unit triggers the adjustment mechanism 2 to switch to the first adjustment link to make each display screen group move to the best left or right inclined posture. The posture angle is the included angle between the visual direction of the human eye and the display plane of the display screen 1.

[0080] For example, the visual direction (S1) of the human eye and the initial posture angle (η 左 = 85°, η 右 = 95°) of the display screen 1 in the same display screen group located on the left and right sides. The parameter determination unit subtracts the initial posture angle of each display screen 1 from 90° to obtain the first adjustment parameter (Δη 左 = -5°, Δη 右 = 5°) of the rotation of each display screen group around the X axis. The execution unit triggers the adjustment mechanism 2 to switch to the first adjustment link to adjust the left or right inclined posture of the display screen 1.

[0081] When the forward or backward inclined posture of the display screen 1 is adjusted, the target user determination unit determines that the real-time user gazing at the display device is the target user, and the target position determination unit determines the real-time position of the target user and the visual direction (S2) of the human eye of the target user, and the initial posture angle (θ 上 , θ 中 , θ 下 ) of each display screen group. The parameter determination unit subtracts the initial posture angle (θ 上 , θ 中 , θ 下 ) of each display screen 1 from 90° (the best visual angle reference) respectively to obtain the second adjustment parameter (Δθ 上, Δθ 中 , Δθ 下 The execution unit triggers the adjustment mechanism 2 to switch to the second adjustment link, which moves each display panel group to the optimal forward or backward tilt position. The tilt angle is the angle between the human eye's visual direction and the display plane of the display panel 1.

[0082] For example, the human eye's visual direction (S2) and the initial pose angle of each display panel group are (θ). 上 =45°, θ 中 =90°, θ 下 =135°). The parameter determination unit subtracts 90° from the initial pose angle of each display group to obtain the second adjustment parameters for the rotation of each display group around the X-axis (Δθ_up = -45°, Δθ_middle = 0°, Δθ_down = 45°). The execution unit triggers the adjustment mechanism 2 to switch to the second adjustment link, and adjusts the forward or backward tilt pose of the display 1 through the second adjustment link. Please refer to Figure 20 The display device may also be equipped with nine display screens 1, and the adjustment process is basically the same as the above adjustment process.

[0083] Please see Figures 2 to 9 In one embodiment, the adjustment mechanism 2 includes a display screen mounting base 21, a support arm 22, a power input mechanism 4, and a first transmission mechanism 23. The display screen mounting base 21 is fixedly connected to the display screen 1; the support arm 22 provides support force to the display screen 1 through the display screen mounting base 21; the first transmission mechanism 23 receives power input from the power input mechanism 4 and transmits the power to the display screen mounting base 21, causing the display screen mounting base 21 to rotate relative to the support arm 22; the power input mechanism 4, the first transmission mechanism 23, and the display screen mounting base 21 constitute a first adjustment link.

[0084] Please see Figure 6 The rotation axis of the display mounting base 21 is parallel to the Y-axis. After receiving the power input from the power input mechanism 4, the first transmission mechanism 23 transmits the power to the display mounting base 21, causing the display mounting base 21 to rotate relative to the support arm 22. That is, when the display mounting base 21 rotates, it can make each display screen 1 rotate around the Y-axis, thereby adjusting the left or right tilt angle of the display screen 1.

[0085] Please see Figures 2 to 9In one embodiment, the adjusting mechanism 2 further comprises a base 24 and a second transmission mechanism 25. The second transmission mechanism 25 is used to receive the power input from the power input mechanism 4 and transmit the power to the second adjusting link, so that the first adjusting link, the display screen 1 and the support arm 22 rotate together relative to the base 24; the power input mechanism 4, the second transmission mechanism 25 and the base 24 constitute the second adjusting link; the rotation direction of the first adjusting link, the display screen 1 and the support arm 22 relative to the base 24 is different from the rotation direction of the display screen mounting seat 21 relative to the support arm 22.

[0086] The first adjusting link, the display screen 1 and the support arm 22 rotate together relative to the base 24 through the second adjusting link. Specifically, the first adjusting link and the display screen 1 are both arranged on the support arm 22, and the rotation of the support arm 22 relative to the base 24 realizes the rotation of the first adjusting link, the display screen 1 and the support arm 22 together relative to the base 24. Please refer to Figure 5 The rotation axis of the support arm 22 is parallel to the X-axis, and the second transmission mechanism 25 receives the power input from the power input mechanism 4 and transmits the power to the second adjusting link, so that the first adjusting link, the display screen 1 and the support arm 22 rotate together around the X-axis, thereby adjusting the angle of the display plane forward or backward. By switching between the first adjusting link and the second adjusting link through the adjusting mechanism 2, the same power input mechanism 4 drives different adjusting links, that is, drives different degrees of freedom movement.

[0087] In one embodiment, the base 24 is a liftable base, and the support arm 22 is arranged at the lifting end of the liftable base. The liftable base is used to drive the support arm 22 arranged on the base 24 to lift, and the lifting of the first adjusting link and the second adjusting link realizes the lifting of the display screen 1. The liftable base realizes the lifting function by using a screw nut mechanism, a gear and rack mechanism, a hydraulic / pneumatic cylinder, etc. Since the liftable base belongs to the application of the prior art, which is not the main improvement point of the present application, the liftable base will not be described in detail here.

[0088] When adjusting the lifting of the display screen 1, the target user determining unit determines that the real-time user gazing at the display device is the target user; the target position determining unit determines the eye height position (H=20) of the target user; and the parameter determining unit calculates the adjusting parameter (Δh=-10) of the liftable base along the W-axis lifting based on the difference (Δh=10-20=-10) between the initial height position (h=10) of the middle display screen group and the eye height position (H=20) of the target user, and generates the working instruction (up, 10) readable by the liftable base according to the adjusting parameter (Δh=-10), so that the middle display screen group moves to the position directly opposite to the eye of the target user.

[0089] During the research and development of the applicant, it is tried to realize the adjustment of the display screens 1 in six degrees of freedom on the display device of multiple display screens 1 by configuring multiple driving devices capable of realizing the adjustment in six degrees of freedom, but the applicant finds that, in addition to the adjustment in the above three degrees of freedom (the lifting of the W axis, the rotation of the X axis, and the rotation of the Y axis), the adjustment in other degrees of freedom hardly plays any role in improving the visual effect, so the adjustment in the redundant degrees of freedom is redundant in the adjustment function, which not only causes a substantial increase in the production and use cost of the display device, but also causes the waste of the function of the driving device.

[0090] The display device of the present application can realize the functions of the lifting of multiple display screens 1, the rotation of multiple display screens 1 around the X axis (i.e. the angle of the forward inclination or backward inclination of the display screen 1), the rotation of multiple display screens 1 around the Y axis (i.e. the angle of the left inclination or right inclination of the display screen 1), etc., and, compared with the display device capable of adjusting six degrees of freedom, the number of driving devices is reduced, the redundancy of the adjustment function is avoided, the production and use cost is reduced, and the popularization and use of the display device with multiple display screens 1 are facilitated.

[0091] Please refer to Figure 1 and Figure 20 In an embodiment, the number of display screen mounting seats 21 is two or more, and each display screen mounting seat 21 is rotatably connected to the support arm 22, so that multiple display screens 1 can be mounted on the support arm 22 and driven by the support arm 22 to rotate around the X axis, thereby simultaneously adjusting the forward inclination or backward inclination of multiple display screens 1.

[0092] Please refer to Figure 7 , Figure 9 and Figure 11 In an embodiment, the adjustment mechanism 2 further comprises a mounting base 26. The support arm 22, the power input mechanism 4, the first transmission mechanism 23, and the second transmission mechanism 25 are all mounted on the mounting base 26. The mounting base 26 is rotatably connected to the base 24.

[0093] Please refer to Figure 6 and Figure 7 In an embodiment, the support arm 22 is arranged on both sides of the mounting base 26, and the support arm 22 is detachably connected to the mounting base 26, so as to facilitate the installation and disassembly of the support arm 22. The detachable connection can be a threaded connection, a buckle connection, etc.

[0094] Please refer to Figures 9 to 11 In an embodiment, the starting actions of the second transmission mechanism 25 and the first transmission mechanism 23 after receiving the power input by the power input mechanism 4 are all vertical axial rotations.

[0095] The vertical direction is along the height direction of the mounting base 26, that is, along the Y-axis direction. After the power input mechanism 4 inputs power, the second transmission mechanism 25 and the first transmission mechanism 23 are driven to work through axial rotation.

[0096] Please refer to Figures 9 to 11 In one embodiment, the first transmission mechanism 23 and the second transmission mechanism 25 both have vertical rotation shafts, the rotation shaft of the first transmission mechanism 23 is defined as the first rotation shaft 231, and the rotation shaft of the second transmission mechanism 25 is defined as the second rotation shaft 251. The power input mechanism 4 includes a driving transmission member 41. The first rotation shaft 231 and the second rotation shaft 251 are coaxially arranged. The driving transmission member 41 moves axially between the first rotation shaft 231 and the second rotation shaft 251 and selectively engages with one of the first rotation shaft 231 and the second rotation shaft 251 to switch the power between the first transmission mechanism 23 and the second transmission mechanism 25.

[0097] The coaxial arrangement of the first rotation shaft 231 and the second rotation shaft 251 facilitates the axial movement of the driving transmission member 41 between the first rotation shaft 231 and the second rotation shaft 251 and facilitates the engagement of the driving transmission member 41 with one of the two rotation shafts. By engaging the driving transmission member 41 with one of the two rotation shafts, the power input by the power input mechanism 4 is transmitted to the first rotation shaft 231 or the second rotation shaft 251 through the driving transmission member 41.

[0098] The power input mechanism 4 specifically further includes a driving wheel 42 and a driving member 43. The driving member 43 is in transmission connection with the driving wheel 42. The driving wheel 42 is located between the first rotation shaft 231 and the second rotation shaft 251, and the driving transmission member 41 is always in engagement with the driving wheel 42.

[0099] The driving member 43 is used to provide power. The driving member 43 can be a stepper motor or a servo motor. The stepper motor or the servo motor has the advantages of easy control, high transmission precision, power-off self-locking function, etc. Since the driving wheel 42 is located between the first rotation shaft 231 and the second rotation shaft 251, when the driving transmission member 41 moves to the side of the first rotation shaft 231, the driving transmission member 41 can be engaged with the first rotation shaft 231 to realize the transmission of the driving wheel 42 to the first rotation shaft 231. When the driving transmission member 41 moves to the side of the second rotation shaft 251, the driving transmission member 41 can be engaged with the second rotation shaft 251 to realize the transmission of the driving wheel 42 to the second rotation shaft 251.

[0100] Please refer to Figure 11 In one embodiment, the first transmission mechanism 23 includes a transmission wheel 232 and a transmission shaft 233. The transmission wheel 232 is installed on the first rotation shaft 231. One end of the transmission shaft 233 is in transmission connection with the transmission wheel 232, and the other end is in transmission connection with the display screen mounting seat 21.

[0101] The transmission wheel 232 is installed on the mounting base 26, and the transmission shaft 233 is installed inside the support arm 22. When the driving transmission member 41 is engaged with the first rotating shaft 231, the power of the power input mechanism 4 is transmitted to the first rotating shaft 231 along the driving transmission member 41, and the first rotating shaft 231 transmits the power to the transmission wheel 232. The transmission connection between the transmission wheel 232 and the transmission shaft 233 can be gear engagement transmission or friction transmission, and the transmission connection between the transmission shaft 233 and the display screen mounting seat 21 can be bevel gear engagement transmission or worm gear engagement transmission. For details, see Figure 8 A first bevel gear 2333 is installed on the transmission shaft 233, and a second bevel gear 211 is installed on the display screen mounting seat 21. The power on the transmission shaft 233 arranged along the X-axis is transmitted to the display screen mounting seat 21 arranged along the Y-axis through the engagement transmission of the first bevel gear 2333 and the second bevel gear 211, so that the display screen mounting seat 21 rotates relative to the support arm 22, that is, drives the display screen 1 to rotate around the Y-axis. In other embodiments, the transmission shaft 233 can also be replaced by a transmission element such as a belt, a synchronous belt, or a chain.

[0102] Please refer to Figure 7 and Figure 9 In one embodiment, the transmission shaft 233 includes a first shaft segment 2331 and a second shaft segment 2332. The first shaft segment 2331 is arranged in the mounting base 26, and the second shaft segment 2332 is arranged in the support arm 22. The first shaft segment 2331 and the second shaft segment 2332 are detachably connected. Specifically, one end of the first shaft segment 2331 is provided with a plug-in hole, and the second shaft segment 2332 is plugged into the plug-in hole and transmissionally matched with the plug-in hole.

[0103] In one embodiment, the number of transmission shafts 233 corresponds to the number of display screen mounting seats 21. Each transmission shaft 233 is engaged with the transmission wheel 232

[0104] Please refer to Figure 11 In one embodiment, the first transmission mechanism 23 further includes a reverse wheel 234. The reverse wheel 234 is arranged between the transmission wheel 232 and the transmission shaft 233. When the reverse wheel 234 is engaged with the transmission wheel 232, the rotation direction of the reverse wheel 234 is opposite to that of the transmission wheel 232.

[0105] When using the display device, the target user is generally located in the center of the display device, and the display screens 1 on the left and right sides of the target user need to rotate by the same angle and in opposite directions. Therefore, by arranging the reverse wheel 234, the same rotation angle and opposite rotation directions of the transmission shafts 233 distributed on the left and right sides are provided.

[0106] Please refer to Figures 9 to 11In one embodiment, the second transmission mechanism 25 comprises a worm 252 and a worm wheel 253. The worm 252 is mounted on the second rotating shaft 251; the worm wheel 253 is fixedly connected to the base 24 and engaged with the worm 252.

[0107] The worm 252 is used to receive the power input from the power input mechanism 4. Since the worm wheel 253 is fixedly connected to the base 24, when the worm 252 rotates, the worm 252 will generate a revolution around the circumferential direction of the worm wheel 253, i.e. the first adjusting link, the display screen 1 and the support arm 22 will rotate relative to the base 24. In use, the axial direction of the worm wheel 253 is parallel to the X axis of the display plane. When the worm 252 rotates around the worm wheel 253, the support arm 22 is driven to rotate around the axial direction of the worm wheel 253, i.e. the display screen 1 mounted on the support arm 22 is driven to rotate around the axial direction of the worm wheel 253, i.e. the display is driven to rotate around the X axis of the display plane, so as to adjust the angle of the forward inclination or the backward inclination of the display plane.

[0108] The conventional use method of the worm and worm wheel mechanism is to drive the rotation of the worm wheel by the rotation of the worm. In this application, the inventor reversely connects the worm wheel 253 to the base 24. When the worm 252 rotates, the axial force generated by the worm 252 will drive the worm 252 to rotate around the worm wheel 253, so as to drive the support arm 22 to rotate relative to the base 24. The transmission cooperation between the worm wheel 253 and the worm 252 not only can realize the motion transmission between two intersecting shafts, but also can realize the self-locking of the support arm 22 and the base 24, i.e. when the worm 252 does not rotate, the worm wheel 253 and the worm 252 can be self-locked by the friction force due to the lead angle of the worm 252 being smaller than the equivalent friction angle of the worm wheel 253. The transmission cooperation between the worm wheel 253 and the worm 252 can only drive the worm 252 to rotate around the worm wheel 253 by the self-rotation of the worm 252, so as to make the operation of the second transmission mechanism 25 more stable and reliable, and avoid the "sinking head" phenomenon of the display screen 1.

[0109] Please refer to Figure 9 and Figure 10 In one embodiment, the driving transmission member 41 is a sliding sleeve, the sliding sleeve is provided with a protruding tooth, the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251 are all provided with a limiting slot, the protruding tooth is slidably connected in each limiting slot, so that the sliding sleeve can selectively engage with the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251. Through the engagement of the protruding tooth and the limiting slot, the driving force on the driving wheel 42 is transmitted to the sliding sleeve, and then the driving force is transmitted to the first rotating shaft 231 or the second rotating shaft 251 by the sliding sleeve.

[0110] Please refer to Figure 9 , Figure 10 , Figure 12 and Figure 13In one embodiment, the limiting groove is an external spline provided on the outer surface of the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251, and the protruding teeth are internal splines provided on the inner surface of the sliding sleeve. The sliding sleeve is slidably connected to the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251 through the cooperation of the internal splines and the external splines, and the driving wheel 42 transmits the driving force to the first rotating shaft 231 or the second rotating shaft 251 through the sliding sleeve by the engagement of the internal splines and the external splines.

[0111] As shown in Figure 14 and Figure 15 , in one embodiment, the sliding sleeve also forms a gear set with the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251. The sliding sleeve is provided with a gear, and the gear on the sliding sleeve is slidably connected to the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251, and the sliding sleeve can selectively engage with the driving wheel 42 and the first rotating shaft 231 or the driving wheel 42 and the second rotating shaft 251.

[0112] As shown in Figure 16 and Figure 17 , in one embodiment, the limiting groove can also be provided on the end surface of the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251, and the protruding teeth are provided on the corresponding end surface of the sliding sleeve. The protruding teeth of the sliding sleeve can be selectively inserted into the limiting groove of the driving wheel 42 and the first rotating shaft 231 or the limiting groove of the driving wheel 42 and the second rotating shaft 251, so as to transmit the driving force to the first rotating shaft 231 or the second rotating shaft 251 through the sliding sleeve.

[0113] It can be understood that in other embodiments, the limiting groove can also be provided on the sliding sleeve, and the protruding teeth can be provided on the driving wheel 42, the first rotating shaft 231 and the second rotating shaft 251. The driving wheel 42 can also be located on one side of the first rotating shaft 231 and the second rotating shaft 251, but compared with the driving wheel 42 being located between the first rotating shaft 231 and the second rotating shaft 251, the two arrangements of the driving wheel 42 will cause the sliding sleeve to have adaptive structural changes. The former arrangement will cause the transmission distance of the sliding sleeve to increase, the structural avoidance space to increase, and the required structure to be more complex and difficult to produce and manufacture. The latter arrangement of the sliding sleeve has a short transmission distance, a simple structure and a small difficulty in production and manufacture.

[0114] As shown in Figure 9 and Figure 10 , in one embodiment, the execution unit is an electrically controlled force applying assembly 5, which includes a magnetic body 51 and an electromagnet 52. The magnetic body 51 is connected to the driving transmission member 41, and the electromagnet 52 magnetically acts on the magnetic body 51 to drive the driving transmission member 41 to move axially between the first rotating shaft 231 and the second rotating shaft 251 and selectively engage with one of the two rotating shafts.

[0115] The electromagnet 52 is installed on the mounting base 26 and is used to generate a magnetic field after being electrified. The magnetic field of the electromagnet 52 acts on the magnetic body 51 to generate an attractive force or a repulsive force. When the electromagnet 52 and the magnetic body 51 attract each other, the traction drive conductor 41 engages with one of the two rotating shafts; when the electromagnet 52 and the magnetic body 51 repel each other, the traction drive conductor 41 engages with the other of the two rotating shafts. By controlling the current direction of the electromagnet 52, the magnetic field direction can be changed, that is, the attractive force or the repulsive force of the electromagnet 52 acting on the magnetic body 51 can be changed.

[0116] In other embodiments, the execution unit can also be a motor, a hydraulic / pneumatic cylinder, etc.

[0117] Please refer to Figure 9 and Figure 10 In one embodiment, the electrically controlled force applying assembly 5 further comprises a push rod 53, one end of the push rod 53 being connected with the drive conductor 41 and the other end being connected with the magnetic body 51, the push rod 53 being provided with a fulcrum, the distance from the drive conductor 41 to the fulcrum being less than the distance from the magnetic body 51 to the fulcrum.

[0118] The push rod 53 can rotate around the fulcrum to make the push rod 53 function as a lever. The distance (force arm) from the drive conductor 41 to the fulcrum is less than the distance (force arm) from the magnetic body 51 to the fulcrum. According to the principle of the lever, the small attractive force or repulsive force on the magnetic body 51 can be amplified through the lever action, so as to generate a larger driving force for pushing or pulling the drive conductor 41, thereby ensuring the reliability of the axial movement of the drive conductor 41 between the first rotating shaft 231 and the second rotating shaft 251.

[0119] When the electromagnet 52 is electrified to generate a magnetic field and the magnetic body 51 on the push rod 53 generates an attractive force, the end of the push rod 53 on which the magnetic body 51 is installed is lifted upward, and the end of the push rod 53 connected with the drive conductor 41 moves downward to press the drive conductor 41 into the position of engaging with the drive wheel 42 and the second rotating shaft 251 for transmission; when the electromagnet 52 is electrified in the opposite direction, the electromagnet 52 and the magnetic body 51 generate a repulsive force, which repels the end of the push rod 53 on which the magnetic body 51 is installed downward, and the end of the push rod 53 connected with the drive conductor 41 moves upward to lift the drive conductor 41 into the position of engaging with the drive wheel 42 and the first rotating shaft 231 for transmission.

[0120] Please refer to Figure 9 and Figure 10In one embodiment, a push rod 53 and the driving transmission member 41 are further provided with a shift fork 54. The shift fork 54 is used to shift the driving transmission member 41 to move axially between the first rotating shaft 231 and the second rotating shaft 251, and the shift fork 54 is rotatably connected with the driving transmission member 41. Specifically, the driving transmission member 41 is provided with a clamping groove, one end of the shift fork 54 is sleeved in the clamping groove, and the other end is hingedly connected with the push rod 53. When the driving transmission member 41 rotates, the shift fork 54 slips with the driving transmission member 41 to avoid that the driving transmission member 41 drives the shift fork 54 to rotate.

[0121] The above description is merely preferred embodiments of the present application, but not to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A display device, characterized by comprising: The display device comprises a plurality of display screens, an adjusting mechanism for adjusting the positions of the display screens, and a control device. The adjusting mechanism adjusts the positions of the display screens based on a first adjusting parameter in a first adjusting link and adjusts the positions of the display screens based on a second adjusting parameter in a second adjusting link. The control device is configured with a display position adjusting function, which comprises determining the first adjusting parameter and / or the second adjusting parameter according to a target position of a target user and initial positions of the display screens, and triggering the adjusting mechanism to switch to a corresponding adjusting link. The control device comprises: a target user determining unit configured to determine a target user, the target user being a real-time user gazing at the display device; a target position determining unit configured to determine a target position, the target position being a real-time position of the target user; a parameter determining unit configured to determine the first adjusting parameter and / or the second adjusting parameter based on the target position and the initial positions of the display screens; an execution unit configured to trigger the adjusting mechanism to switch to a corresponding adjusting link based on the first adjusting parameter and / or the second adjusting parameter determined by the parameter determining unit. The adjusting mechanism comprises: a display screen mounting seat fixedly connected to the display screen; a support arm providing a support force to the display screen through the display screen mounting seat; a power input mechanism; a first transmission mechanism configured to receive power input by the power input mechanism and transmit the power to the display screen mounting seat, so that the display screen mounting seat rotates relative to the support arm; the power input mechanism, the first transmission mechanism, and the display screen mounting seat constitute the first adjusting link; the adjusting mechanism further comprises: a base; a second transmission mechanism configured to receive power input by the power input mechanism and transmit the power to the second adjusting link, so that the first adjusting link, the display screen, and the support arm rotate relative to the base; the power input mechanism, the second transmission mechanism, and the base constitute the second adjusting link; a rotation direction of the first adjusting link, the display screen, and the support arm relative to the base is different from a rotation direction of the display screen mounting seat relative to the support arm; both the second transmission mechanism and the first transmission mechanism receive power input by the power input mechanism and start to rotate in a vertical axial direction; both the first transmission mechanism and the second transmission mechanism have vertical rotation shafts, the rotation shaft of the first transmission mechanism is defined as a first rotation shaft, and the rotation shaft of the second transmission mechanism is defined as a second rotation shaft, and the power input mechanism comprises a driving transmission member; the first rotation shaft and the second rotation shaft are coaxially arranged, the driving transmission member moves axially between the first rotation shaft and the second rotation shaft and selectively engages with one of the first rotation shaft and the second rotation shaft, so as to switch power between the first transmission mechanism and the second transmission mechanism.

2. The display device of claim 1, wherein The first transmission mechanism comprises: a transmission wheel mounted on the first rotation shaft; A transmission shaft, one end of which is in transmission connection with the transmission wheel and the other end is in transmission connection with the display screen mounting base.

3. The display device of claim 1, wherein The second transmission mechanism comprises: A worm is installed on the second rotating shaft; A worm wheel is fixedly connected to the base and is in engagement with the worm.

4. The display device of claim 1, wherein The power input mechanism further comprises a driving wheel and a driving member, the driving member is in transmission connection with the driving wheel, the driving wheel is located between the first rotating shaft and the second rotating shaft, and the driving member is always in engagement with the driving wheel.

5. The display device of claim 1, wherein, The execution unit is an electric control force applying assembly, which comprises: A magnetic body is connected to the driving member; An electromagnet magnetically acts on the magnetic body to drive the driving member to move axially between the first rotating shaft and the second rotating shaft and selectively engage with one of the first rotating shaft and the second rotating shaft.

6. The display device of claim 5, wherein, The electric control force applying assembly further comprises a push rod, one end of the push rod is connected with the driving member and the other end is connected with the magnetic body, the push rod is provided with a fulcrum, and the distance from the driving member to the fulcrum is less than the distance from the magnetic body to the fulcrum.

Images