Display device, vehicle-mounted display system and vehicle

Abstract

The utility model discloses a display device, a vehicle-mounted display system and a vehicle, and belongs to the technical field of vehicle-mounted display. The display device comprises a scroll screen, a fixing piece and a fastening piece; a plurality of uniformly distributed positioning holes are formed in the first surface of the fixing piece; a first connecting part is arranged at one end of the scroll screen, through holes corresponding to the positioning holes are uniformly formed in the first connecting part in the first direction, and the first direction is parallel to the display surface of the scroll screen and perpendicular to the unfolding direction or the shrinking direction of the scroll screen; the fastener is used for being matched with the positioning hole and the through hole corresponding to the positioning hole so that the first connecting part and the fixing piece can be fixed. The plurality of through holes are uniformly distributed, so that stress concentration on the scroll screen can be eliminated or partially eliminated, and when the scroll screen is unfolded, the scroll screen can be prevented from curling or wrinkling.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted display technology, and more specifically, to a display device, a vehicle-mounted display system and a vehicle. Background Art

[0002] With the continuous development of automobiles, the functions of in-vehicle systems are gradually enriched, and passengers' demand for watching movies is also increasing. Although some in-car projection screens have been developed, the existing in-car projection screens are prone to stress concentration, curling or wrinkling, and the uneven surface or wrinkles of the screen will reduce the user's viewing experience. Utility Model Content

[0003] The present application proposes a display device, a vehicle-mounted display system and a vehicle to improve the above-mentioned defects.

[0004] In a first aspect, an embodiment of the present application provides a display device, comprising: a scroll screen, a fixing member and a fastener; a plurality of evenly distributed positioning holes are provided on a first surface of the fixing member; a first connecting portion is provided at one end of the scroll screen, and through holes corresponding to each positioning hole are evenly arranged on the first connecting portion along a first direction, and the first direction is parallel to the display surface of the scroll screen and perpendicular to the expansion direction or contraction direction of the scroll screen; the fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole, so as to fix the first connecting portion to the fixing member.

[0005] Optionally, for a possible implementation, the fixing member includes a pressure strip and a positioning plate, a second surface of the pressure strip is provided with a plurality of evenly distributed positioning holes, and the positioning plate is provided with a positioning groove; the pressure strip is clamped in the positioning groove, and the side wall of the positioning groove is provided with a limiting hole corresponding to each positioning hole, and the fastener is used to cooperate with the positioning hole, the through hole corresponding to the positioning hole, and the limiting hole corresponding to the positioning hole, so as to fix the positioning groove, the first connecting part and the pressure strip, and the first connecting part is located between the second surface and the limiting hole.

[0006] Optionally, in a possible implementation manner, when the scroll screen is unfolded, the second surface is perpendicular to an unfolding direction or a contracting direction of the scroll screen.

[0007] Optionally, for a possible implementation, a third connection portion is provided between one end of the scroll screen and one end of the first connection portion, and a second connection portion is provided at the other end of the first connection portion; wherein the second connection portion is fixedly connected to the pressure strip.

[0008] Optionally, in a possible implementation manner, the second connection portion is bonded to the pressure strip.

[0009] Optionally, for a possible implementation, the surface of the molding strip bonded to the second connecting portion is a third surface, the surface of the second connecting portion bonded to the third surface has multiple first marking areas, and the third surface has a second marking area corresponding to each first marking area; each first marking area overlaps with the corresponding second marking area, wherein each first path is the same as the corresponding second path, the first path corresponding to the first marking area is the shortest path from the first marking area along the contact surface to the axis of the nearest through hole, the second path corresponding to the second marking area is the shortest path from the second marking area along the surface of the molding strip to the axis of the nearest positioning hole, and the contact surface is the surface of the first connecting portion and the second connecting portion facing the molding strip.

[0010] Optionally, in a possible implementation manner, the limiting hole is a countersunk hole.

[0011] Optionally, in a possible implementation manner, an inner surface of the positioning groove forms a receiving cavity, and the receiving cavity is used to receive the pressure strip; and a cross-sectional shape of the receiving cavity is the same as a cross-sectional shape of the pressure strip.

[0012] In the second aspect, an embodiment of the present application also provides a vehicle-mounted display system, comprising: a shell, a transmission member, a driving assembly, a rotating mechanism and the display device described in the first aspect; the rotating mechanism is connected to the scroll screen, and the rotating mechanism and the first connecting part are respectively located at the two ends of the scroll screen; the driving assembly is arranged on the shell and connected to the rotating mechanism, and is used to drive the rotating mechanism to rotate, thereby driving the fixed member to move closer to or away from the shell; one end of the transmission member is connected to the shell, and the other end is connected to the fixed member, and is used to support the fixed member.

[0013] In a third aspect, an embodiment of the present application further provides a vehicle, comprising: a vehicle body, wherein a mounting position is provided in the vehicle body; and the vehicle-mounted display system as described in the second aspect, wherein the vehicle-mounted display system is used to be fixed at the mounting position.

[0014] The display device, vehicle-mounted display system and vehicle provided in the present application include: a scroll screen, a fixing member and a fastener; a plurality of evenly distributed positioning holes are opened on the first surface of the fixing member; a first connecting portion is provided at one end of the scroll screen, and through holes corresponding to each positioning hole are evenly arranged on the first connecting portion along a first direction, and the first direction is parallel to the display surface of the scroll screen and perpendicular to the expansion direction or contraction direction of the scroll screen; the fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole, so that the first connecting portion is fixed to the fixing member.

[0015] In the present application, a plurality of evenly distributed positioning holes are provided on the first surface of the fixing member, and through holes corresponding to each positioning hole are evenly provided on the first connection portion along the first direction, and the fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole to fix the first connection portion to the fixing member. Since the plurality of through holes are evenly distributed, after the fastener fixes the first connection portion to the fixing member, the stress concentration on the scroll screen can be eliminated or partially eliminated, and when the scroll screen is unfolded, curling or wrinkling of the scroll screen can be avoided.

[0016] Other features and advantages of the embodiments of the present application will be described in the subsequent description, and partly become apparent from the description, or can be understood by practicing the embodiments of the present application. The purpose and other advantages of the embodiments of the present application can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a display device provided in an embodiment of the present application is shown;

[0019] Figure 2 A schematic structural diagram of a fixing member provided in an embodiment of the present application is shown;

[0020] Figure 3 A schematic diagram of the structure of unfolding a scroll provided in an embodiment of the present application is shown;

[0021] Figure 4 A schematic diagram showing the structure of the vehicle-mounted display system provided by an embodiment of the present application in an unfolded state;

[0022] Figure 5 A schematic diagram showing the structure of the vehicle-mounted display system provided by an embodiment of the present application in a retracted state;

[0023] Figure 6 A schematic structural diagram of a display device provided by another embodiment of the present application is shown;

[0024] Figure 7 A schematic structural diagram of a fixing member provided in another embodiment of the present application is shown;

[0025] Figure 8 Shows Figure 6 A bottom view of the display device in FIG.

[0026] Fig. 9 A partial cross-sectional schematic diagram of a display device provided in an embodiment of the present application is shown.

[0027] Description of reference numerals:

[0028] 11. Shell; 12. Transmission member; 13. Scroll screen; 14. Fixing member; 15. Fastener; 131. Through hole; 132. First connecting part; 133. Second connecting part; 134. Third connecting part; 141. Positioning hole; 142. Pressure strip; 143. Positioning plate; 144. Positioning groove; 1441. Limiting hole. DETAILED DESCRIPTION

[0029] In order to make those skilled in the art better understand the present application scheme, the technical scheme in the present application embodiment will be clearly and completely described below in conjunction with the drawings in the present application embodiment. Obviously, the described embodiment is only a part of the present application embodiment, rather than all the embodiments. The components of the present application embodiment usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiment of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] With the continuous development of automobiles, the functions of in-vehicle systems are gradually enriched, and the passengers' demand for watching movies is also increasing. Although some in-vehicle projection screens have been developed, the existing in-vehicle projection screens are prone to stress concentration. When the stress at the stress concentration point exceeds the elastic stress limit of the material, the material at the stress concentration point may undergo irreversible deformation, which can easily cause the screen to curl or wrinkle. The screen surface is uneven or wrinkled, causing the image presented on the screen to be irregularly stretched or compressed, greatly reducing the user's viewing experience. Therefore, it is very valuable to propose an in-vehicle display system that reduces wrinkles on the screen surface.

[0032] To this end, the present application proposes a display device, see Figure 1 , Figure 1A schematic structural diagram of the display device 100 is shown, wherein the display device 100 includes: a scroll screen 13, a fixing member 14 and a fastener.

[0033] A plurality of evenly distributed positioning holes are formed on the first surface of the fixing member 14 .

[0034] A first connecting portion is provided at one end of the scroll screen 13, and through holes corresponding to each positioning hole are evenly arranged on the first connecting portion along a first direction. The first direction is parallel to the display surface of the scroll screen and perpendicular to the expansion direction or contraction direction of the scroll screen.

[0035] The fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole, so that the first connecting part is fixed to the fixing member.

[0036] See also Figure 2 , Figure 2 A schematic structural diagram of a fixing member 14 is shown. A plurality of evenly distributed positioning holes 141 are formed on a first surface of the fixing member 14 .

[0037] It should be noted that the fixing member 14 is a rigid object, which can support the scroll screen in the first direction to avoid unnecessary bending of the scroll screen. Figure 2 The shape of the fixing member 14 is only one implementation mode, and this embodiment does not specifically limit the shape of the fixing member 14. The fixing member 14 can be made of metal.

[0038] See also Figure 3 , Figure 3 The schematic diagram of the structure of the unfolded scroll screen 13 is shown. A first connecting portion 132 is provided at one end of the scroll screen 13. Through holes 131 corresponding to each positioning hole 141 are evenly arranged on the first connecting portion 132 along a first direction. The first direction is parallel to the display surface of the scroll screen and perpendicular to the unfolding direction or the contraction direction of the scroll screen 13. The first direction can be Figure 3 The direction H in the diagram indicates .

[0039] The scroll screen is made of a flexible material. For example, the scroll screen can be a screen for projection, and the projection can be achieved by emitting corresponding light from a projector to illuminate the scroll screen.

[0040] In another exemplary embodiment, the scroll screen may also be a display screen composed of multiple electronic display units, and the processor controls the multiple display units to display different pixels, thereby realizing functions such as projecting pictures and videos through the scroll screen.

[0041] It should be noted that in this embodiment, the material and color of the screen are not specifically limited.

[0042] The positioning hole can be a threaded hole or a non-threaded hole. When the positioning hole is a threaded hole, the fastener can be a screw; when the positioning hole is a non-threaded hole, the fastener can be a rivet. The positioning hole and the fastener are used in conjunction with each other.

[0043] In an optional embodiment, the positioning hole is a threaded hole, and the fastener is a screw. The screw passes through the through hole and cooperates with the threaded hole to fix the first connecting part to the fixing member.

[0044] In an optional embodiment, the positioning hole is a non-threaded hole, and the fastener is a rivet. The rivet passes through the through hole and cooperates with the non-threaded hole to fix the first connecting part to the fixing member.

[0045] It should be noted that when the first connection portion is fixed to the fixing member, there may be various fixing positions of the positioning hole and the first connection portion.

[0046] In an exemplary embodiment, the axis of the positioning hole is perpendicular to the display surface of the scroll screen.

[0047] In another exemplary embodiment, the axis of the positioning hole is parallel to the display surface of the scroll screen.

[0048] Among them, a first connection part is provided at one end of the scroll screen. It can be understood that the connection between the scroll screen and the first connection part is flat, and the force at the connection between the scroll screen and the first connection part is uniform.

[0049] For example, the scroll screen can be made of the same material as the first connection portion, and the scroll screen can also be integrally connected to the first connection portion. For another example, the scroll screen can be made of the same material as the first connection portion, and the scroll screen can be integrally connected to the first connection portion.

[0050] Since the lower end of an existing vehicle-mounted screen is usually bonded to a fixed object, the bonding point is easily deformed with changes in the environment, which causes wrinkles in the screen, reducing the user's viewing experience.

[0051] The present application provides a plurality of evenly distributed positioning holes on the first surface of the fixing member, and evenly provides through holes corresponding to each positioning hole on the first connection part along the first direction, and the fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole to fix the first connection part to the fixing member. On the one hand, the present application fixes the first connection part to the fixing member by the fastener, which can avoid wrinkles caused by the adhesion of the fastener to the first connection part. On the other hand, after the fastener fixes the first connection part to the fixing member, the stress concentration on the scroll screen can be eliminated or partially eliminated due to the even distribution of the multiple through holes, and when the scroll screen is unfolded, curling or wrinkles on the scroll screen can be avoided.

[0052] It should be noted that the application scenario of the display device of the present application is a vehicle-mounted display system. Figure 4 A structural schematic diagram of the vehicle-mounted display system 200 in an unfolded state is shown, wherein the vehicle-mounted display system 200 includes: a shell 11, a transmission member 12, a driving assembly, a rotating mechanism and the display device; the rotating mechanism is connected to the scroll screen, and the rotating mechanism and the first connecting part are respectively located at both ends of the scroll screen 13; the driving assembly is arranged on the shell 11, connected to the rotating mechanism, and is used to drive the rotating mechanism to rotate, thereby driving the fixing member 14 to move closer to or away from the shell 11; one end of the transmission member 12 is connected to the shell 11, and the other end is connected to the fixing member 14, and is used to support the fixing member 14.

[0053] Among them, the rotating mechanism is connected to the scroll screen 13, and the rotating mechanism and the first connecting part are respectively located at the two ends of the scroll screen. When the driving component drives the rotating mechanism to rotate, the rotating mechanism drives the scroll screen to rotate, so that the fixing part moves in the direction close to or away from the shell, thereby realizing the folding and opening of the vehicle-mounted display system.

[0054] Among them, one end of the transmission member is connected to the shell, and the other end is connected to the fixing member. When the scroll screen is unfolded, the scroll screen can be prevented from swinging.

[0055] in, Figure 5 The schematic diagram of the structure of the vehicle-mounted display system 200 in a retracted state is shown. The scroll screen is in a retracted state and is located inside the housing 11 . The scroll screen is fixedly connected to the fixing member 14 via a fastener.

[0056] For further information, see Figure 6 , Figure 6 A display device 300 proposed in another embodiment of the present application is shown, the fixing member 14 includes a pressure strip 142 and a positioning plate 143, a second surface of the pressure strip 142 is provided with a plurality of evenly distributed positioning holes, and the positioning plate is provided with a locking groove.

[0057] The pressure strip 142 is clamped in the clamping groove, and the side wall of the clamping groove is provided with a limiting hole corresponding to each positioning hole, and the fastener is used to cooperate with the positioning hole, the through hole corresponding to the positioning hole and the limiting hole corresponding to the positioning hole to fix the clamping groove, the first connecting part and the pressure strip, and the first connecting part is located between the second surface and the limiting hole.

[0058] Since the lower end of the scroll screen in the vehicle-mounted display system may swing, the lower end of the scroll screen needs to be fixed, and the fixing part needs to be connected to other objects to prevent the fixing part from swinging relative to the vehicle body when the scroll screen is unfolded. The positioning plate can be connected to the transmission part to prevent the fixing part from swinging relative to the vehicle body when the scroll screen is unfolded.

[0059] The pressure strip may be prismatic, and when installing the pressure strip into the positioning slot, the pressure strip may be directly placed in the positioning slot, or may be slid into the positioning slot along an inner track of the positioning slot.

[0060] Among them, since the pressure strip is a rigid object and the positioning plate is a rigid object, the combination of the pressure strip and the positioning plate can further improve the rigidity of the fixing parts, thereby improving the stress state of the scroll screen, making the stress distribution of the scroll screen more uniform and the projection effect better.

[0061] Figure 7 A schematic structural diagram of a fixing member 14 proposed in the present application is shown, wherein the pressure strip 142 is clamped in the clamping groove 144 , and the side wall of the clamping groove is provided with a limiting hole corresponding to each positioning hole.

[0062] Figure 8 Shows Figure 6 In the bottom view of the display device 300 in FIG. 1 , the positioning plate 143 includes a positioning groove, the pressure strip is clamped in the positioning groove, and the side wall of the positioning groove is provided with a limiting hole 1441 corresponding to each positioning hole.

[0063] For further information, see Fig. 9 , Fig. 9 A partial cross-sectional schematic diagram of the display device 300 is shown. When the scroll screen 13 is unfolded, the second surface is perpendicular to the unfolding direction or the contraction direction of the scroll screen. The positioning hole is arranged in the force direction when the scroll screen is tensioned. The first connecting part is reliably connected to the fixing part, and the stress distribution of the scroll screen is uniform and controllable. The curling and wrinkling conditions are significantly improved, and various harsh working conditions can also be coped with.

[0064] Among them, when the scroll screen is in the unfolding state, the second surface of the present application is perpendicular to the unfolding direction or the contraction direction of the scroll screen, which can achieve a pre-tightening effect.

[0065] Furthermore, a third connection portion 134 is provided between one end of the scroll screen 13 and one end of the first connection portion 132 , and a second connection portion 133 is provided at the other end of the first connection portion 132 .

[0066] The second connection portion 133 , the positioning plate 143 and the pressure strip 142 are fixedly connected by a fastener 15 .

[0067] It should be noted that the second connection portion is fixedly connected to the pressure strip, and can provide a pre-tightening force for the scroll screen.

[0068] Furthermore, the second connecting portion is bonded to the pressure strip, so that the positioning accuracy of the positioning member can be ensured during the assembly process, and the positioning of the lower end of the scroll screen can be ensured together with the fixing member.

[0069] Furthermore, the surface of the pressure strip bonded to the second connection portion 133 is the third surface, the surface of the second connection portion bonded to the third surface has multiple first marking areas, and the third surface has a second marking area corresponding to each first marking area.

[0070] Each first marking area overlaps with the corresponding second marking area, wherein each first path is the same as the corresponding second path, the first path corresponding to the first marking area is the shortest path from the first marking area along the contact surface to the axis of the nearest through hole, the second path corresponding to the second marking area is the shortest path from the second marking area along the surface of the pressure strip to the axis of the nearest positioning hole, and the contact surface is the surface of the first connecting portion and the second connecting portion facing the pressure strip.

[0071] Since the first connection part is flexible and the material of the pressure strip is rigid, it is difficult to accurately align the positioning hole on the pressure strip, the through hole on the first connection part and the limiting hole on the side wall of the positioning slot during assembly. If the position deviation of the positioning hole, through hole and limiting hole is too large, it will also cause wrinkles on the scroll screen.

[0072] To this end, it can be ensured that the positioning holes on the pressure strip are aligned with the through holes on the first connection part, and then the through holes on the first connection part are aligned with the limit blocks on the positioning groove. The second connection part of the present application is fixedly connected to the pressure strip. During installation, each first mark area on the third surface is overlapped with the corresponding second mark area on the second connection part and the second connection part is bonded to the third surface of the pressure strip. Since each first path is the same as the corresponding second path, the first path corresponding to the first mark area is the shortest path from the first mark area along the contact surface to the axis of the nearest through hole, and the second path corresponding to the second mark area is the shortest path from the second mark area along the surface of the pressure strip to the axis of the nearest positioning hole, and the contact surface is the first connection part and the second connection part facing the pressure strip. For this reason, it can be understood that by overlapping each first mark area with the corresponding second mark area, accurate alignment of each positioning hole with its corresponding through hole is achieved. Then the pressure strip is assembled into the positioning groove, and each through hole is aligned with the corresponding limit hole. Not only can the accuracy of the alignment of the positioning hole and the through hole be improved, but also the difficulty of assembly can be reduced.

[0073] Furthermore, the limiting hole is a countersunk hole, which can prevent the fastener 15 from protruding from the surface of the positioning plate, thereby maintaining the appearance and preventing the fastener from being squeezed and loosened.

[0074] Furthermore, an inner surface of the positioning groove forms a receiving cavity, and the receiving cavity is used to receive the pressure strip.

[0075] The cross-sectional shape of the accommodating cavity is the same as the cross-sectional shape of the pressure strip.

[0076] Wherein, the inner surface of the positioning groove forms an accommodating cavity, and the pressure strip is arranged in the accommodating cavity and fixedly connected to the side wall of the accommodating cavity.

[0077] It should be noted that since the pressure strip is in the shape of a long strip, it is relatively difficult to directly place the pressure strip in the accommodating cavity and align the limiting hole with the positioning hole. For this reason, the cross-sectional shape of the accommodating cavity of the present application is the same as the cross-sectional shape of the pressure strip. The accommodating cavity of the positioning groove is not only used to accommodate the pressure strip, but also has a certain limiting effect on the pressure strip, that is, it limits the pressure strip from undergoing a large displacement in the accommodating cavity, which is beneficial to the alignment of the limiting hole and the positioning hole on the production line.

[0078] For further information, see Figure 4 , Figure 4 An in-vehicle display system 200 proposed in the present application is shown, and the system includes.

[0079] A housing, a transmission member, a driving assembly, a rotating mechanism and the display device described in the above embodiments.

[0080] The rotating mechanism is connected to the scroll screen, and the rotating mechanism and the first connecting part are respectively located at two ends of the scroll screen.

[0081] The driving assembly is disposed on the housing and connected to the rotating mechanism, and is used for driving the rotating mechanism to rotate, thereby driving the fixing member to move closer to or away from the housing.

[0082] One end of the transmission member is connected to the housing, and the other end is connected to the fixing member for supporting the fixing member.

[0083] Furthermore, the present application proposes a vehicle, comprising: a vehicle body, wherein a mounting position is provided in the vehicle body; and the vehicle-mounted display system described in the aforementioned embodiment, wherein the vehicle-mounted display system is used to be fixed on the mounting position.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, characterized in that: include: Roll-up screens, fixtures and fasteners; A plurality of evenly distributed positioning holes are formed on the first surface of the fixing member; A first connecting portion is provided at one end of the scroll screen, and through holes corresponding to each positioning hole are evenly arranged on the first connecting portion along a first direction, and the first direction is parallel to the display surface of the scroll screen and perpendicular to the expansion direction or the contraction direction of the scroll screen; The fastener is used to cooperate with the positioning hole and the through hole corresponding to the positioning hole, so that the first connecting part is fixed to the fixing member.

2. The device according to claim 1, characterized in that The fixing member includes a pressure strip and a positioning plate, a plurality of evenly distributed positioning holes are opened on the second surface of the pressure strip, and the positioning plate is provided with a positioning groove; The pressure strip is clamped in the clamping groove, and the side wall of the clamping groove is provided with a limiting hole corresponding to each positioning hole, and the fastener is used to cooperate with the positioning hole, the through hole corresponding to the positioning hole and the limiting hole corresponding to the positioning hole to fix the clamping groove, the first connecting part and the pressure strip, and the first connecting part is located between the second surface and the limiting hole.

3. The device according to claim 2, characterized in that When the scroll screen is unfolded, the second surface is perpendicular to the unfolding direction or the contraction direction of the scroll screen.

4. The device according to claim 3, characterized in that A third connection portion is provided between one end of the scroll screen and one end of the first connection portion, and a second connection portion is provided at the other end of the first connection portion; Wherein, the second connecting portion is fixedly connected to the pressure strip.

5. The device according to claim 4, characterized in that The second connection portion is bonded to the pressure strip.

6. The device according to claim 5, characterized in that The surface of the pressure strip bonded to the second connecting portion is the third surface, the surface of the second connecting portion bonded to the third surface has a plurality of first marking areas, and the third surface has a second marking area corresponding to each first marking area; Each first marking area overlaps with the corresponding second marking area, wherein each first path is the same as the corresponding second path, the first path corresponding to the first marking area is the shortest path from the first marking area along the contact surface to the axis of the nearest through hole, the second path corresponding to the second marking area is the shortest path from the second marking area along the surface of the pressure strip to the axis of the nearest positioning hole, and the contact surface is the surface of the first connecting portion and the second connecting portion facing the pressure strip.

7. The device according to claim 2, characterized in that The limiting hole is a countersunk hole.

8. The device according to claim 2, characterized in that The inner surface of the clamping groove forms a receiving cavity, and the receiving cavity is used to receive the pressure strip; The cross-sectional shape of the accommodating cavity is the same as the cross-sectional shape of the pressure strip.

9. A vehicle-mounted display system, characterized in that: The system comprises: A housing, a transmission member, a driving assembly, a rotating mechanism, and a display device according to any one of claims 1 to 8; The rotating mechanism is connected to the scroll screen, and the rotating mechanism and the first connecting part are respectively located at two ends of the scroll screen; The driving assembly is disposed on the housing and connected to the rotating mechanism, and is used to drive the rotating mechanism to rotate, thereby driving the fixing member to move closer to or away from the housing; One end of the transmission member is connected to the housing, and the other end is connected to the fixing member for supporting the fixing member.

10. A vehicle, characterized in that: include: A vehicle body, wherein a mounting position is provided in the vehicle body; and, The vehicle-mounted display system as described in claim 9 is used to be fixed at the installation position.

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