Light field screen adjusting device and adjusting system

Abstract

The utility model relates to a light field screen adjusting device and adjusting system, the light field screen adjusting device comprises a light machine, the light machine comprises a display screen, a light path module and a distance adjusting mechanism, the display screen is adjacent to the light path module, the light emitting surface of the display screen faces the light path module, and the distance adjusting mechanism is arranged between the light emitting surface of the display screen and the light path module. The distance adjusting mechanism is connected to the display screen and is used for adjusting the distance between the display screen and the light path module; and the rotating mechanism is connected to the light machine, and the rotating mechanism is used for driving the light machine to rotate so as to adjust the light emitting angle of the light path module. According to the utility model, the angle and the picture size of the light field screen can be flexibly adjusted, so that the best viewing effect is provided for viewers.

Description

Technical Field

[0001] This utility model relates to the field of vehicle display technology, and more specifically, to a light field screen adjustment device and adjustment system. Background Technology

[0002] Light field screens are innovative technologies that overcome physical space limitations and increase viewing distance and image size, based on spatial optical system design, optical components, and image processing algorithms. The viewing principle of a light field screen is similar to viewing a very large image behind a small window. When the window position and image size are relatively fixed, the viewing position can only see the whole picture within a specific area (eyebox); outside the eyebox, the image is not fully visible. In reality, due to factors such as viewer height and seating position, viewers often easily exceed the eyebox, affecting the viewing experience. Utility Model Content

[0003] The purpose of this invention is to provide a light field screen adjustment device and system that can flexibly adjust the angle and size of the light field screen, thereby providing the best viewing effect for the viewer.

[0004] A light field screen adjustment device includes: an optical engine, the optical engine including a display screen, an optical path module, and a distance adjustment mechanism, the display screen and the optical path module being disposed adjacent to each other, the light emitting surface of the display screen facing the optical path module, the distance adjustment mechanism being connected to the display screen and used to adjust the distance between the display screen and the optical path module; and a rotation mechanism connected to the optical engine, the rotation mechanism being used to drive the optical engine to rotate, thereby adjusting the light emission angle of the optical path module.

[0005] In the above technical solution, the display screen and the optical path module are arranged adjacent to each other, and the light emitted from the display screen passes through the optical path module to achieve the effect of a light field screen. By setting a distance adjustment mechanism, the distance between the display screen and the optical path module can be adjusted, thereby adjusting the size of the image to meet the viewer's desired image size. A rotation mechanism can rotate the optical engine, thereby changing the light output angle of the optical path module to accommodate viewers of different heights. The distance adjustment mechanism and the rotation mechanism work together to flexibly adjust the display effect of the optical engine, thus meeting the viewer's needs and enhancing the viewing experience.

[0006] Furthermore, the distance adjustment mechanism includes a first cover plate, a second cover plate, a linkage assembly, and a drive assembly. The first cover plate is connected to the display screen, the second cover plate is opposite to the first cover plate, the linkage assembly is connected between the first cover plate and the second cover plate, and the drive assembly can drive the first cover plate and the second cover plate to move closer or further apart through the linkage assembly.

[0007] In the above technical solution, the display screen can be installed on the first cover plate, the second cover plate can be fixed to the external bracket, the first cover plate and the second cover plate are connected by a linkage assembly, and the linkage assembly can be driven by a drive assembly to move, thereby making the first cover plate and the second cover plate move closer or further apart, thereby adjusting the distance between the display screen and the optical path module.

[0008] Furthermore, the linkage assembly includes two linkage units arranged in a mirror image. Each linkage unit includes two connecting rods arranged opposite each other and a shaft connecting the two connecting rods. Each connecting rod includes a first segment and a second segment hinged to each other via the shaft. The first segment and the second segment are rotatably connected to the first cover plate and the second cover plate, respectively.

[0009] In the above technical solution, each linkage unit includes two linkages, which are disposed opposite to each other on both sides of the first cover plate and the second cover plate. The two linkages are connected by a shaft. The first segment and the second segment of each linkage are hinged to each other and rotatably connected to the first cover plate and the second cover plate respectively. The first segment and the second segment can rotate about the shaft, thereby driving the first cover plate and the second cover plate to move closer or further apart. The structure is reasonable and can ensure the stable movement of the display screen.

[0010] Furthermore, the drive assembly includes a telescopic drive member, a lead screw, and a transmission block. The transmission block is disposed on the shaft, the telescopic drive member is connected to the lead screw, and the lead screw spans between the shafts of the two connecting rod units and is threadedly connected to the transmission block.

[0011] In the above technical solution, the telescopic drive component can drive the lead screw to rotate. The lead screw drives the two shafts to move closer or further away through the transmission blocks of the two linkage units, thereby driving the first section and the second section to rotate, and thus causing the first cover plate and the second cover plate to move closer or further away from each other. The position adjustment of the display screen can be achieved through a single drive component, and the overall structure is reliable and the movement is stable.

[0012] Furthermore, the rotating mechanism includes a bracket, a rotating drive component, and a transmission assembly. The bracket is provided with a rotating shaft, which passes through the optical engine. The rotating drive component is located in the optical engine and is connected to the rotating shaft through the transmission assembly. The rotating drive component can drive the optical engine to rotate relative to the bracket about the rotating shaft as an axis.

[0013] In the above technical solution, the rotary drive component can drive the optical engine to rotate around the rotating shaft, thereby adjusting the light output angle of the optical path module. The structure is simple and easy to implement.

[0014] Furthermore, the transmission assembly includes a reduction gear connected to the output end of the rotary drive and a transmission gear disposed on the outer periphery of the rotating shaft, wherein the reduction gear meshes with the transmission gear.

[0015] In the above technical solution, the reduction gear and the transmission gear work together to ensure the stability of the optical engine rotation and make the operation smoother and more stable.

[0016] Furthermore, it also includes a damping gear, which meshes with the transmission gear.

[0017] In the above technical solution, the damping gear can provide damping for the rotation of the optical engine, making the rotation smooth.

[0018] Furthermore, it also includes a housing, which has a mounting groove and at least one limiting buckle in the mounting groove. The bracket has an insert plate with a locking spring piece. The insert plate can extend into the mounting groove, and the locking spring piece cooperates with the limiting buckle to fix the bracket.

[0019] In the above technical solution, the outer shell is provided with a mounting groove, and a limiting buckle is provided in the mounting groove. It can cooperate with the locking spring on the bracket to achieve screwless quick fixation. When disassembling, the bracket can be separated from the outer shell simply by removing the locking spring from the limiting buckle, which is quick and convenient.

[0020] Furthermore, the outer casing is provided with a viewing window.

[0021] In the above technical solution, viewers can view the imaging of the optical path module through a viewing window.

[0022] A light field screen adjustment system includes the aforementioned light field screen adjustment device and a camera. The camera is electrically connected to the light field screen adjustment device. The camera is used to acquire human eye information of the viewer, and the light field screen adjustment device adjusts the display effect according to the human eye information.

[0023] In the above technical solution, the camera can capture the viewer's eyes, and the visual system calculates the spatial distance and relative height between the viewer's eyes and the headrest. The distance adjustment mechanism is controlled to adjust the distance between the display screen and the optical path module, thereby changing the size of the image frame. At the same time, the rotation mechanism is controlled to adjust the angle of the optical engine, thereby adjusting the light output angle of the optical path module, so as to achieve automatic adjustment so that the viewer can see the best image frame effect.

[0024] Compared with existing technologies, the advantages of this invention are as follows: the display screen and the optical path module are arranged adjacent to each other, and the light emitted from the display screen achieves the effect of a light field screen through the optical path module. By setting a distance adjustment mechanism, the distance between the display screen and the optical path module can be adjusted, thereby adjusting the size of the image to meet the viewer's desired image size. The rotation mechanism can rotate the optical engine, thereby changing the light output angle of the optical path module to accommodate viewers of different heights. The combination of the distance adjustment mechanism and the rotation mechanism allows for flexible adjustment of the display effect of the optical engine, thereby meeting the viewer's needs and enhancing the viewing experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the light field screen adjustment device according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the distance adjustment mechanism according to an embodiment of the present invention.

[0027] Figure 3 This is a comparison diagram of the display screen position in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the light field screen adjustment system according to an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the optical path module in an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] Optical engine 1, display screen 11, optical path module 12, semi-transparent mirror 121, spherical mirror 122, distance adjustment mechanism 13, first cover plate 131, second cover plate 132, connecting rod assembly 133, connecting rod unit 1331, connecting rod 1332, shaft 1333, first section 1334, second section 1335, drive assembly 134, telescopic drive component 1341, lead screw 1342, transmission block 1343, rotating mechanism 2, bracket 21, rotating shaft 211, insert plate 212, locking spring 213, rotating drive component 22, transmission assembly 23, reduction gear 231, transmission gear 232, damping gear 233, housing 3, mounting slot 31, limit buckle 32, viewing window 33, camera 4. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] Please refer to Figures 1 to 5In a preferred embodiment, the light field screen adjustment device of this utility model mainly includes an optical engine 1 and a rotating mechanism 2. The optical engine 1 includes a display screen 11, an optical path module 12, and a distance adjustment mechanism 13. The display screen 11 and the optical path module 12 are arranged adjacent to each other, with the light-emitting surface of the display screen 11 facing the optical path module 12. The distance adjustment mechanism 13 is connected to the display screen 11 and is used to adjust the distance between the display screen 11 and the optical path module 12. The rotating mechanism 2 is connected to the optical engine 1 and is used to drive the optical engine 1 to rotate, thereby adjusting the light emission angle of the optical path module 12.

[0035] It should be noted that, in specific implementations, the optical engine 1 includes a housing (not shown), and the display screen 11, optical path module 12, and distance adjustment mechanism 13 are all housed within the housing. For ease of observation, the housing is hidden in the accompanying drawings. The display screen 11 can be an existing display device. The optical path module 12 is used to reflect the light emitted from the display screen 11 and form a light field screen effect. In specific implementations, the optical path module 12 can use an existing light field screen optical path system. Figure 5 This is one embodiment of the optical path module 12, which may include a semi-transparent mirror 121 and a spherical mirror 122. The image on the display screen 11 is projected onto the semi-transparent mirror 121 and then reflected onto the spherical mirror 122. The spherical mirror 122 magnifies and extends the image, and the reflected light then passes through the semi-transparent mirror 121 and enters the human eye.

[0036] The display screen 11 and the optical path module 12 are arranged adjacent to each other. The light emitted from the display screen 11 passes through the optical path module 12 to achieve the effect of a light field screen. By setting a distance adjustment mechanism 13, the distance between the display screen 11 and the optical path module 12 can be adjusted, thereby adjusting the size of the image to meet the viewer's desired image size. The rotation mechanism 2 can rotate the optical engine 1, thereby changing the light emission angle of the optical path module 12 to accommodate viewers of different heights. The distance adjustment mechanism 13 and the rotation mechanism 2 work together to flexibly adjust the display effect of the optical engine 1, thereby meeting the viewer's needs and improving the viewing experience.

[0037] Please refer to Figure 2 The distance adjustment mechanism 13 includes a first cover plate 131, a second cover plate 132, a linkage assembly 133, and a drive assembly 134. The first cover plate 131 is connected to the display screen 11, the second cover plate 132 is opposite to the first cover plate 131, the linkage assembly 133 is connected between the first cover plate 131 and the second cover plate 132, and the drive assembly 134 can drive the first cover plate 131 and the second cover plate 132 to move closer or further apart through the linkage assembly 133.

[0038] For example, the display screen 11 can be mounted on the first cover plate 131, and the second cover plate 132 can be fixed to a housing (not shown). The first cover plate 131 and the second cover plate 132 are connected by a linkage assembly 133. The linkage assembly 133 can be driven to move by the drive assembly 134, thereby moving the first cover plate 131 and the second cover plate 132 closer to or further away from each other, thereby adjusting the distance between the display screen 11 and the optical path module 12.

[0039] Specifically, the linkage assembly 133 includes two linkage units 1331 arranged in a mirror image. The linkage unit 1331 includes two links 1332 arranged opposite to each other, and a shaft 1333 connected between the two links 1332. The link 1332 includes a first segment 1334 and a second segment 1335 that are hinged to each other through the shaft 1333. The first segment 1334 and the second segment 1335 are rotatably connected to the first cover plate 131 and the second cover plate 132, respectively.

[0040] For example, each linkage unit 1331 includes two linkages 1332, which are disposed opposite to each other on both sides of the first cover plate 131 and the second cover plate 132. The two linkages 1332 are connected by a shaft 1333. The first segment 1334 and the second segment 1335 of each linkage 1332 are hinged to each other and rotatably connected to the first cover plate 131 and the second cover plate 132 respectively. The first segment 1334 and the second segment 1335 can rotate about the shaft 1333, thereby driving the first cover plate 131 and the second cover plate 132 to move closer or further apart. The structure is reasonable and can ensure the stable movement of the display screen 11.

[0041] In this embodiment, the drive assembly 134 includes a telescopic drive member 1341, a lead screw 1342, and a transmission block 1343. The transmission block 1343 is disposed on the shaft 1333. The telescopic drive member 1341 is connected to the lead screw 1342. The lead screw 1342 spans between the shafts 1333 of the two connecting rod units 1331 and is threadedly connected to the transmission block 1343.

[0042] The telescopic drive component 1341 can be a motor, with its output end connected to the lead screw 1342. A transmission block 1343 is located in the middle of the shaft 1333, dividing it into two sections. The lead screw 1342 passes through the transmission block 1343 and is threadedly connected to it. The telescopic drive component 1341 can drive the lead screw 1342 to rotate. The lead screw 1342, through the two transmission blocks 1343, drives the two shafts 1333 to move closer or further apart, thereby causing the first section 1334 and the second section 1335 to rotate. This, in turn, causes the first cover plate 131 and the second cover plate 132 to move closer or further apart. The position adjustment of the display screen 11 can be achieved with a single drive component, and the overall structure is reliable and the movement is stable.

[0043] Please refer to this again. Figure 1The rotating mechanism 2 includes a support 21, a rotating drive 22, and a transmission assembly 23. The support 21 is provided with a rotating shaft 211, which passes through the optical engine 1. The rotating drive 22 is provided on the optical engine 1 and is connected to the rotating shaft 211 through the transmission assembly 23. The rotating drive 22 can drive the optical engine 1 to rotate relative to the support 21 with the rotating shaft 211 as the axis, thereby adjusting the light output angle of the optical path module 12. The structure is simple and easy to implement.

[0044] Specifically, the transmission assembly 23 includes a reduction gear 231 connected to the output end of the rotary drive 22, and a transmission gear 232 disposed on the outer periphery of the rotating shaft 211. The reduction gear 231 meshes with the transmission gear 232. The cooperation between the reduction gear 231 and the transmission gear 232 ensures the stability of the rotation of the optical engine 1, making the operation smoother and more fluid.

[0045] In this embodiment, a damping gear 233 is also included, which meshes with the transmission gear 232. The damping gear 233 can provide damping for the rotation of the optical engine 1, making the rotation smooth.

[0046] The light field screen adjustment device in this embodiment also includes a housing 3. The housing 3 is provided with a mounting groove 31. At least one limiting buckle 32 is provided in the mounting groove 31. The bracket 21 is provided with a plate 212. A locking spring piece 213 is provided on the plate 212. The plate 212 can extend into the mounting groove 31. The locking spring piece 213 cooperates with the limiting buckle 32 to fix the bracket 21.

[0047] In this embodiment, the outer casing 3 is a headrest for a car seat. The optical engine 1 and the rotating mechanism 2 are located inside the headrest, providing video entertainment for rear passengers. In other possible embodiments, the outer casing 3 can be any other structure that requires video playback. The outer casing 3 is provided with a mounting groove 31, and a limiting buckle 32 is provided in the mounting groove 31. The limiting buckle 32 can cooperate with the locking spring 213 on the bracket 21 to achieve screwless quick fixing. During disassembly, the bracket 21 can be separated from the outer casing 3 simply by removing the locking spring 213 from the limiting buckle 32, which is quick and convenient.

[0048] In this embodiment, the outer casing 3 is also provided with a viewing window 33, through which the viewer can view the imaging of the optical path module 12.

[0049] This utility model also provides a light field screen adjustment system, including the above-mentioned light field screen adjustment device and a camera 4. The camera 4 is electrically connected to the light field screen adjustment device. The camera 4 is used to acquire the viewer's eye information, and the light field screen adjustment device adjusts the display effect according to the eye information.

[0050] Camera 4 can capture the viewer's eyes. The visual analysis system calculates the spatial distance and relative height between the viewer's eyes and the headrest. It then controls the distance adjustment mechanism 13 to adjust the distance between the display screen 11 and the optical path module 12, thereby changing the image size. Simultaneously, it controls the rotation mechanism 2 to adjust the angle of the optical engine 1, thus adjusting the light output angle of the optical path module 12, achieving automatic adjustment to ensure the viewer sees the optimal image size. It is understood that an existing visual analysis system can be used, and this application will not elaborate further.

[0051] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A light field screen adjustment device, characterized in that, include: An optical engine, comprising a display screen, an optical path module, and a distance adjustment mechanism, wherein the display screen is disposed adjacent to the optical path module, the light-emitting surface of the display screen faces the optical path module, and the distance adjustment mechanism is connected to the display screen for adjusting the distance between the display screen and the optical path module; as well as A rotating mechanism, connected to the optical engine, is used to drive the optical engine to rotate in order to adjust the light output angle of the optical path module.

2. The light field screen adjustment device according to claim 1, characterized in that, The distance adjustment mechanism includes a first cover plate, a second cover plate, a linkage assembly, and a drive assembly. The first cover plate is connected to the display screen, the second cover plate is opposite to the first cover plate, the linkage assembly is connected between the first cover plate and the second cover plate, and the drive assembly can drive the first cover plate and the second cover plate to move closer or further apart through the linkage assembly.

3. The light field screen adjustment device according to claim 2, characterized in that, The linkage assembly includes two linkage units arranged in a mirror image. Each linkage unit includes two connecting rods arranged opposite each other and a shaft connecting the two connecting rods. Each connecting rod includes a first segment and a second segment that are hinged to each other via the shaft. The first segment and the second segment are rotatably connected to the first cover plate and the second cover plate, respectively.

4. The light field screen adjustment device according to claim 3, characterized in that, The drive assembly includes a telescopic drive component, a lead screw, and a transmission block. The transmission block is disposed on the shaft. The telescopic drive component is connected to the lead screw. The lead screw spans between the shafts of the two connecting rod units and is threadedly connected to the transmission block.

5. The light field screen adjustment device according to claim 1, characterized in that, The rotating mechanism includes a bracket, a rotating drive, and a transmission assembly. The bracket has a rotating shaft that passes through the optical engine. The rotating drive is located in the optical engine and is connected to the rotating shaft through the transmission assembly. The rotating drive can drive the optical engine to rotate relative to the bracket about the rotating shaft.

6. The light field screen adjustment device according to claim 5, characterized in that, The transmission assembly includes a reduction gear connected to the output end of the rotary drive and a transmission gear disposed on the outer periphery of the rotating shaft, wherein the reduction gear meshes with the transmission gear.

7. The light field screen adjustment device according to claim 6, characterized in that, It also includes a damping gear, which meshes with the transmission gear.

8. The light field screen adjustment device according to claim 5, characterized in that, It also includes a housing, which has a mounting groove and at least one limiting buckle in the mounting groove. The bracket has an insert plate with a locking spring piece. The insert plate can extend into the mounting groove, and the locking spring piece cooperates with the limiting buckle to fix the bracket.

9. The light field screen adjustment device according to claim 8, characterized in that, The outer casing has a viewing window.

10. A light field screen adjustment system, characterized in that, The device includes a light field screen adjustment device as described in any one of claims 1 to 9, and a camera, wherein the camera is electrically connected to the light field screen adjustment device, the camera is used to acquire human eye information of the viewer, and the light field screen adjustment device adjusts the display effect according to the human eye information.

Images