Far image display device

Abstract

A far image display device comprises a shell, an image source screen, a curved mirror and light splitting glass are arranged on the shell, a dustproof foam plate is arranged on the outer side of the image source screen, and the dustproof foam plate is used for solving the problem of installation accuracy of the image source screen and also has the effect of preventing dust around the image source screen. The image source screen is of a rectangular frame-shaped structure and is arranged on the periphery of the image source screen. A screen pressing plate is arranged on the outer side of the dustproof foam plate, the screen pressing plate is installed on the shell through screws, and the screen pressing plate further stably fixes the image source screen.

Description

Technical Field

[0001] The utility model relates to the field of display devices, in particular to a telescopic image display device. Background Art

[0002] The telescopic display device is structured by accurately fixing the image source screen, the beam splitter glass and the curved mirror to the inner shell through a certain fixing method. The telescopic display device optically enlarges the image on the image source screen to the curved mirror through the optical path. The imaging of the telescopic display device not only requires the precision of the relative position assembly of the three optical components, but also the optical components themselves cannot be deformed after assembly. The material of the beam splitter glass and the curved mirror is glass. The glass itself has a certain strength and is not easy to deform during assembly. The image source screen without a die-cast back plate is overall soft and easy to deform. In addition, the image source screen and the inner shell need to be sealed and dustproof during assembly, which will further cause the image source screen to be stressed and cause the screen to distort. Utility Model Content

[0003] The utility model provides a telescopic image display device to solve the above-mentioned deficiencies of the prior art, solve the problem that the image source screen of the telescopic image display device is easily deformed during assembly; solve the problem of assembly accuracy of the image source screen of the telescopic image display device; and solve the problem of dust prevention of the telescopic image display device at the image source screen.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A telescopic image display device comprises a housing, on which an image source screen, a curved mirror and a light splitting glass are arranged;

[0006] A dustproof foam plate is provided on the outside of the image source screen. The use of the dustproof foam plate solves the problem of image source screen installation accuracy and also plays a role in dustproofing around the image source screen. It has a rectangular frame structure and is arranged on the periphery of the image source screen. A screen pressure plate is provided on the outside of the dustproof foam plate. The screen pressure plate is installed on the shell by screws, and the screen pressure plate further stabilizes and fixes the image source screen.

[0007] Furthermore, the splitting glass is arranged at the front end of the shell, the image source screen is arranged at the rear end of the shell, and the curved mirror is arranged at the lower side of the shell. The above arrangement constitutes the structure of the telescopic image display device.

[0008] Furthermore, there is an angle between the image source screen and the beam splitter glass, and the angle between the image source screen and the beam splitter glass is an acute angle.

[0009] Furthermore, the outer side of the curved mirror is an outwardly convex arc structure.

[0010] Furthermore, an opening is provided on one side of the shell for installing the image source screen, and a fixing groove is formed around the opening. The image source screen is arranged in the fixing groove, and the image source screen can be positioned through the fixing groove, thereby improving the installation accuracy of the image source screen. At the same time, when the image source screen is pasted and fixed, the fixing groove also expands the contact area during pasting.

[0011] Furthermore, a plurality of reinforcing ribs are provided on the outer periphery of the fixing groove of the shell, and reinforcing ribs are provided around the sides of the fixing groove. When assembling, the image source screen is naturally placed in the fixing groove of the shell, and the image source screen is close to the reinforcing ribs on the left and lower sides to achieve the purpose of positioning. At this time, the image source screen is in a completely stress-free state and the image source screen will not be deformed.

[0012] Furthermore, the image source screen is adhered to the housing by glue, so as to quickly fix the image source screen.

[0013] Furthermore, the dustproof foam plate includes a pair of first foam plates arranged in parallel to each other and a pair of second foam plates arranged in parallel to each other, the length direction of the first foam plate and the length direction of the second foam plate are perpendicular to each other, and adhesive glue is attached to the inner and outer walls of the first foam plate and the second foam plate. In addition, the reinforcing ribs on the four sides of the fixing groove are in a step-like structure, and the step height is 1.0 mm higher than that of the image source screen. And in order to facilitate the pasting operation of the dustproof foam plate, it is set as the first foam plate and the second foam plate.

[0014] Furthermore, in order to facilitate the pasting of the first foam board and the second foam board and achieve a fool-proof effect, a folded-structure snap-fit ​​structure is formed at both ends of the first foam board and the second foam board, and the snap-fit ​​structure on the first foam board matches the snap-fit ​​structure on the second foam board.

[0015] Furthermore, a plurality of positioning posts are provided on one side of the shell for mounting the image source screen, and a plurality of positioning holes corresponding to the positions of the positioning posts are provided on the screen pressure plate, and the positioning posts are inserted into the corresponding positioning holes. The installation accuracy of the screen pressure plate is improved by the arrangement of the positioning posts and the positioning holes, and when fixed by screws, the screen pressure plate applies force to the dustproof foam plate, and the dustproof foam plate will shrink due to the pressure, and finally the pressure is evenly distributed around the image source screen instead of being concentrated at the position of the screws, thereby avoiding problems such as crushing of the image source screen, and the screen pressure plate is a metal product, and the heat dissipation effect of the image source screen can also be improved by the screen pressure plate.

[0016] The advantages of the above technical solution are:

[0017] 1. This design is simple, fast and efficient to assemble, which can improve production efficiency.

[0018] 2. This design can achieve the purpose of preventing the image source screen from deforming and preventing dust while ensuring the assembly accuracy of the image source screen.

[0019] 3. This design does not require the image source screen to have high strength or high-precision assembly structure. It is not only highly compatible with image source screens, but also can effectively reduce material costs and screen development costs.

[0020] 4. The image source screen is a high-brightness screen, which generates a lot of heat. The large sheet metal pressure plate in the design also effectively dissipates the heat of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the exploded structure of a telescopic image display device in one embodiment of the utility model.

[0023] Figure 2 It is a cross-sectional view of a telescopic image display device in one embodiment of the utility model.

[0024] Figure 3 It is a schematic diagram of the assembly structure of a telescopic image display device in one embodiment of the utility model.

[0025] Figure 4 The present invention is a schematic diagram of a telescopic display device in one embodiment of the present invention with the screen pressure plate removed.

[0026] Figure 5 This is a schematic diagram of the structure of the telescopic display device in one embodiment of the utility model with the screen pressing plate and dustproof foam removed.

[0027] Figure 6 It is a schematic diagram of the display direction of the image source screen of the telescopic image display device in one embodiment of the utility model. DETAILED DESCRIPTION

[0028] like Figure 1 to Figure 6 As shown, a telescopic image display device includes a housing 4, on which an image source screen 1, a curved mirror 2 and a beam splitter glass 3 are arranged, the beam splitter glass 3 is arranged at the front end of the housing 4, the image source screen 1 is arranged at the rear end of the housing 4, the curved mirror 2 is arranged at the lower side of the housing 4, there is an angle between the image source screen 1 and the beam splitter glass 3, and the angle between the image source screen 1 and the beam splitter glass 3 is an acute angle. The outer side of the curved mirror 2 is an outwardly convex arc structure.

[0029] A dustproof foam plate is provided on the outside of the image source screen 1, and a screen pressing plate 7 is provided on the outside of the dustproof foam plate. The screen pressing plate 7 is mounted on the shell 4 by screws 8. The shell 4 is provided with an opening on one side for mounting the image source screen 1, and a fixing groove is formed around the opening. The image source screen 1 is arranged in the fixing groove, and a plurality of reinforcing ribs are provided on the outer periphery of the fixing groove of the shell 4. The image source screen 1 is adhered to the shell 4 by glue.

[0030] The dustproof foam plate includes a pair of first foam plates 5 and a pair of second foam plates 6 arranged in parallel with each other, and the length direction of the first foam plate 5 and the length direction of the second foam plate 6 are perpendicular to each other. Adhesive glue is attached to the inner and outer walls of the first foam plate 5 and the second foam plate 6. A snap-fit ​​structure with a folded structure is formed at both ends of the first foam plate 5 and the second foam plate 6, and the snap-fit ​​structure on the first foam plate 5 matches the snap-fit ​​structure on the second foam plate 6.

[0031] A plurality of positioning posts are provided on one side of the housing 4 for mounting the image source screen 1, and a plurality of positioning holes corresponding to the positions of the positioning posts are provided on the screen pressing plate 7. The positioning posts are inserted into the corresponding positioning holes, and the screen pressing plate 7 is made of metal.

[0032] When installing the image source screen 1 in this embodiment, the image source screen 1 is first placed in the fixing groove, and the left side and the bottom side of the image source screen 1 are positioned by the reinforcing ribs on the left and bottom sides. At this time, since the image source screen 1 is not subjected to force, the image source screen 1 will not be deformed.

[0033] Next, the second foam board 6 is pasted on the upper and lower sides of the image source screen 1, and then the first foam board 5 is pasted on the left and right sides of the image source screen 1. During pasting, the first foam board 5 and the second foam board 6 need to be positioned by a snap-fit ​​structure.

[0034] Finally, place the screen pressure plate 7 on the dustproof foam plate, and pass the positioning column through the corresponding positioning hole when placing it, and then fix the screen pressure plate 7 with screws 8. After fixation, the pressure generated by the screws 8 will be evenly transmitted to other positions, thereby avoiding deformation of the image source screen 1.

[0035] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A telescopic image display device, characterized in that: It comprises a shell (4), on which an image source screen (1), a curved mirror (2) and a beam splitting glass (3) are provided; A dustproof foam plate is provided on the outer side of the image source screen (1), and a screen pressing plate (7) is provided on the outer side of the dustproof foam plate. The screen pressing plate (7) is mounted on the housing (4) by means of screws (8).

2. The telescopic image display device according to claim 1, characterized in that: The light splitting glass (3) is arranged at the front end of the shell (4), the image source screen (1) is arranged at the rear end of the shell (4), and the curved mirror (2) is arranged at the lower side of the shell (4).

3. The telescopic image display device according to claim 1, characterized in that: There is an angle between the image source screen (1) and the beam splitting glass (3), and the angle between the image source screen (1) and the beam splitting glass (3) is an acute angle.

4. The telescopic image display device according to claim 3, characterized in that: The outer side of the curved mirror (2) is an outwardly convex arc structure.

5. The telescopic image display device according to claim 1, characterized in that: An opening is provided on one side of the shell (4) for mounting the image source screen (1), and a fixing groove is formed around the opening, and the image source screen (1) is arranged in the fixing groove.

6. The telescopic image display device according to claim 5, characterized in that: A plurality of reinforcing ribs are provided on the outer periphery of the fixing groove of the shell (4).

7. The telescopic image display device according to claim 1, characterized in that: The image source screen (1) is adhered to the housing (4) by means of glue.

8. The telescopic image display device according to claim 1, characterized in that: The dustproof foam plate comprises a pair of first foam plates (5) arranged in parallel with each other and a pair of second foam plates (6) arranged in parallel with each other, and the length direction of the first foam plates (5) and the length direction of the second foam plates (6) are perpendicular to each other; Adhesive glue is attached to the inner and outer walls of the first foam board (5) and the second foam board (6).

9. The telescopic image display device according to claim 8, characterized in that: Both ends of the first foam plate (5) and the second foam plate (6) are formed with snap-fit ​​structures in a folded shape, and the snap-fit ​​structure on the first foam plate (5) matches the snap-fit ​​structure on the second foam plate (6).

10. The telescopic image display device according to claim 1, characterized in that: A plurality of positioning posts are provided on one side of the housing (4) for mounting the image source screen (1), and a plurality of positioning holes corresponding to the positions of the positioning posts are provided on the screen pressing plate (7), and the positioning posts are inserted into the corresponding positioning holes; The screen pressing plate (7) is made of metal.

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