Airborne display screen with night vision compatibility

Abstract

The invention discloses a night vision compatible airborne display screen, which comprises a U-shaped mounting shell, a central groove of the mounting shell is fixedly connected with a display screen body, the mounting shell is internally provided with a U-shaped cavity, the two ends of the interior of the mounting shell are rotatably connected with transmission rollers, and the transmission rollers are rotatably connected with the display screen body. Two ends of the two transmission rollers penetrate through the side wall of the mounting shell, a protective film belt is in transmission connection between the two transmission rollers, the protective film belt is formed by connecting a filter film and an anti-dazzle film, outlet grooves are formed in two sides of a central groove of the mounting shell, and the two outlet grooves are located in two sides of the surface of the display screen body respectively. And the protective film belt penetrates through the two outlet grooves. According to the invention, the anti-dazzle film and the night-vision compatible filter film can be quickly and conveniently replaced on the surface of the display screen body, and in the replacement process, the scraper can abut against the surface of the protective film belt to move, so that the protective film belt is more attached to the surface of the display screen body.

Description

Technical Field

[0001] The present invention relates to the technical field of airborne display screens, and in particular to an airborne display screen with night vision compatibility. Background Art

[0002] In the modern military field, night vision technology plays an important role. Weapons and equipment equipped with night vision equipment are used in sea, land and air combat platforms and are applied to large, medium and small weapons and equipment. At the same time, on equipment with night vision imaging system (Night Vision Imaging System), each luminous body must meet night vision compatibility. The so-called night vision compatibility means that the luminous body will not interfere with the night vision imaging system and remain visible to the naked eye. At the same time, night vision compatibility also means that it is difficult or impossible for the enemy's night vision imaging system to detect luminous bodies with night vision compatibility performance at a distance. Ordinary light sources such as incandescent light, electroluminescent light, display and LED will interfere with the night vision imaging system due to the IR (Infra-Red) light emitted, including a small amount of red light, within the range that its night vision imaging system can receive. A luminous body that has not been designed for night vision compatibility or is poorly designed will produce a spotlight effect in a naked vision environment, causing the pilot to lose his sight, and even causing the night vision imaging system to malfunction or be damaged. Therefore, to ensure the successful application of night vision imaging systems on aircraft, the realization of night vision compatibility is crucial.

[0003] The traditional design idea is to install a night vision compatible filter in the display. However, when the display is working during the day, especially when working under direct sunlight, the filter must be removed to meet the brightness requirements, and it must be reinstalled at night, which is extremely inconvenient to use. Frequent disassembly and assembly can easily lead to light leakage, and the installation process also has high requirements for craftsmanship. Summary of the invention

[0004] The present invention provides an airborne display screen with night vision compatibility to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A night vision compatible airborne display screen comprises a U-shaped mounting shell, a central groove of the mounting shell being fixedly connected to a display screen body, a U-shaped chamber being provided inside the mounting shell, transmission rollers being rotatably connected to both ends of the interior of the mounting shell, both ends of the two transmission rollers passing through the side walls of the mounting shell, a protective film belt being transmission-connected between the two transmission rollers, the protective film belt being composed of a filter film and an anti-glare film connected together, exit grooves being provided on both sides of the central groove of the mounting shell, the two exit grooves being respectively located on both sides of the surface of the display screen body, the protective film belt passing through the two exit grooves, a portion of the protective film belt between the two exit grooves being against the surface of the display screen body, a driving device being provided at one end of the transmission roller, and a scraping device being provided on the surface of the display screen body.

[0006] Preferably, the driving device comprises a mounting tube, the mounting tube is fixedly connected to the side wall of the mounting shell, a motor is fixedly connected inside the mounting tube, and an output end of the motor is fixedly connected to one end of the driving roller.

[0007] Preferably, the two transmission rollers are rotated to drive the protective film belt to rotate and move.

[0008] Preferably, the scraping device includes two first fixed plates and two second fixed plates, and the two first fixed plates and the two second fixed plates are respectively fixedly connected to the side walls at both ends of the mounting shell, a fixed rod is fixedly connected between the side walls of the two first fixed plates, and a rotating rod is rotatably connected between the two second fixed plates, a moving rod passes through the fixed rod and the rotating rod, a scraper is fixedly connected to the bottom side wall of the moving rod, and the bottom side of the scraper rests on the upper side of the protective film band on the surface of the display screen body, a guide block is fixedly connected to the through hole of the moving rod passing through the rotating rod, a track groove is opened on the side wall of the rotating rod, and the track groove is arranged in a diamond-shaped track, and one end of the guide block extends into the track groove.

[0009] Preferably, a second fixed plate extends from one end of the rotating rod, and a belt is connected between one end of the rotating rod and the driving roller.

[0010] Preferably, both upper and lower sides of the outlet slot are fixedly connected with pressing strips, and the two pressing strips in the outlet slot are respectively pressed against the upper and lower side walls of the protective film belt.

[0011] Preferably, the pressure strips are all made of silicone.

[0012] Preferably, each of the pressure strips is in the shape of a long strip with a triangular cross section, and the length of the pressure strip is greater than the width of the protective film strip.

[0013] Preferably, the scraper is made of rubber.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention is reasonably designed, and not only can the anti-glare film and the night vision compatible filter film be quickly and conveniently replaced on the surface of the display screen body, but also during the replacement process, the scraper can be moved against the surface of the protective film belt, so that the protective film belt can better fit the surface of the display screen body.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the three-dimensional structure of an airborne display screen with night vision compatibility proposed by the present invention; Figure 2 This is a schematic diagram of a top view structure of an airborne display screen with night vision compatibility proposed by the present invention; Figure 3 A schematic diagram of a top-view cross-sectional structure of an airborne display screen with night vision compatibility proposed by the present invention; Figure 4 A schematic diagram of a side cross-sectional structure of an onboard display screen with night vision compatibility proposed by the present invention; Figure 5 for Figure 4 A is a schematic diagram of the partially enlarged structure of the middle part; Figure 6 for Figure 4 A schematic diagram of the partially enlarged structure of B in the middle; Figure 7 It is a schematic diagram of the unfolded structure of the circumferential side wall of the rotating rod in the present invention; Figure 8 This is a schematic diagram of the structure of the filter film and the anti-glare film proposed in the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Mounting cylinder; 2. First fixing plate; 3. Fixing rod; 4. Moving rod; 5. Filter film; 6. Scraper; 7. Second fixing plate; 8. Track groove; 9. Rotating rod; 10. Display screen body; 11. Mounting shell; 12. Belt; 13. Transmission roller; 14. Exit groove; 15. Motor; 16. Pressure strip; 17. Anti-glare film; 18. Guide block. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0021] See also Figures 1 to 8 In an embodiment of the present invention, an airborne display screen compatible with night vision includes a U-shaped mounting shell 11, a display screen body 10 is fixedly connected to the central groove of the mounting shell 11, a U-shaped chamber is provided inside the mounting shell 11, transmission rollers 13 are rotatably connected to both ends of the interior of the mounting shell 11, both ends of the two transmission rollers 13 penetrate the side wall of the mounting shell 11, a protective film belt is transmission-connected between the two transmission rollers 13, the protective film belt is composed of a filter film 5 and an anti-glare film 17 connected together, exit grooves 14 are provided on both sides of the central groove of the mounting shell 11, the two exit grooves 14 are respectively located on both sides of the surface of the display screen body 10, the protective film belt penetrates the two exit grooves 14, and the part of the protective film belt located between the two exit grooves 14 is against the surface of the display screen body 10, a driving device is provided at one end of the transmission roller 13, and a scraping device is provided on the surface of the display screen body 10.

[0022] Specifically, the driving device includes a mounting tube 1, which is fixedly connected to the side wall of the mounting shell 11. A motor 15 is fixedly connected inside the mounting tube 1. The output end of the motor 15 is fixedly connected to one end of the transmission roller 13. When the motor 15 is started, the motor 15 can drive the transmission roller 13 to rotate. The rotation of the two transmission rollers 13 can drive the protective film belt to rotate and move. When the part of the night vision compatible filter film 5 in the protective film belt moves to the surface of the display screen body 10, the display screen body 10 can be used at night. Similarly, when the motor 15 is started again during the day, the part of the anti-glare film 17 in the protective film belt moves to the surface of the display screen body 10, which reduces the reflection effect of the display screen during the day, and the operation is convenient. While the transmission roller 13 rotates, the transmission roller 13 can drive the rotating rod 9 to rotate through the belt 12. The rotation of the rotating rod 9 can make the guide block 18 in one end of the moving rod 4 move along the track groove 8, so that the moving rod 4 moves back and forth along the rotating rod 9. The reciprocating movement of the moving rod 4 can make the scraper 6 on its bottom side move against the protective film belt, so that the protective film belt fits the surface of the display screen body 10 more closely.

[0023] Specifically, the scraping device includes two first fixed plates 2 and two second fixed plates 7, the two first fixed plates 2 and the two second fixed plates 7 are respectively fixedly connected to the side walls at both ends of the mounting shell 11, a fixed rod 3 is fixedly connected between the side walls of the two first fixed plates 2, a rotating rod 9 is rotatably connected between the two second fixed plates 7, a moving rod 4 is passed through the fixed rod 3 and the rotating rod 9, a scraper 6 is fixedly connected to the bottom side wall of the moving rod 4, the bottom side of the scraper 6 is against the upper side of the protective film belt on the surface of the display body 10, the scraper 6 is made of rubber, the moving rod 4 passes through the through hole of the rotating rod 9 and is fixedly connected to a guide block 18, and the rotating rod 9 is fixedly connected to the bottom side wall of the moving rod 4. A track groove 8 is provided on the side wall of the movable rod 9, and the track groove 8 is arranged in a diamond-shaped track. One end of the guide block 18 extends into the track groove 8, and the second fixed plate 7 extends from one end of the rotating rod 9. A belt 12 is connected between one end of the rotating rod 9 and the transmission roller 13. The transmission roller 13 can drive the rotating rod 9 to rotate through the belt 12. The rotation of the rotating rod 9 can make the guide block 18 in one end of the moving rod 4 move along the track groove 8, so that the moving rod 4 moves back and forth along the rotating rod 9. The reciprocating movement of the moving rod 4 can make the scraper 6 on its bottom side move against the protective film belt, so that the protective film belt is more in line with the surface of the display screen body 10.

[0024] Specifically, the upper and lower sides of the outlet groove 14 are fixedly connected with pressure strips 16. The two pressure strips 16 in the outlet groove 14 are respectively pressed against the upper and lower side walls of the protective film belt. The pressure strips 16 are made of silicone material. Each pressure strip 16 is arranged in a long strip shape with a triangular cross-section. The length of the pressure strip 16 is greater than the width of the protective film belt. When the protective film belt rotates and moves, the two pressure strips 16 can wipe off the dust on the upper and lower surfaces of the protective film belt.

[0025] The working principle of the present invention is: At night, the motor 15 can be started, and the motor 15 can drive the driving roller 13 to rotate. The rotation of the two driving rollers 13 can drive the protective film belt to rotate and move. When the part of the night vision compatible filter film 5 in the protective film belt moves to the surface of the display screen body 10, the display screen body 10 can be used at night. Similarly, the motor 15 is started again during the day, so that the part of the anti-glare film 17 in the protective film belt moves to the surface of the display screen body 10, reducing the reflection effect of the display screen during the day, and the operation is convenient; While the transmission roller 13 is rotating, the transmission roller 13 can drive the rotating rod 9 to rotate through the belt 12. The rotation of the rotating rod 9 can make the guide block 18 in one end of the moving rod 4 move along the track groove 8, so that the moving rod 4 can reciprocate along the rotating rod 9. The reciprocating movement of the moving rod 4 can make the scraper 6 on its bottom side move against the surface of the protective film belt, so that the protective film belt can better fit the surface of the display screen body 10.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An airborne display screen with night vision compatibility, comprising a mounting housing (11) arranged in a U-shape, characterized in that: The central groove of the mounting shell (11) is fixedly connected to the display screen body (10), the interior of the mounting shell (11) is provided with a U-shaped chamber, both ends of the interior of the mounting shell (11) are rotatably connected to transmission rollers (13), both ends of the two transmission rollers (13) penetrate the side wall of the mounting shell (11), a protective film belt is transmission-connected between the two transmission rollers (13), the protective film belt is composed of a filter film (5) and an anti-glare film (17) connected together, both sides of the central groove of the mounting shell (11) are provided with exit grooves (14), the two exit grooves (14) are respectively located on both sides of the surface of the display screen body (10), the protective film belt penetrates the two exit grooves (14), the portion of the protective film belt located between the two exit grooves (14) abuts against the surface of the display screen body (10), one end of the transmission roller (13) is provided with a driving device, and the surface of the display screen body (10) is provided with a scraping device.

2. The night vision compatible airborne display screen according to claim 1, characterized in that: The driving device comprises a mounting cylinder (1), the mounting cylinder (1) being fixedly connected to a side wall of a mounting shell (11), a motor (15) being fixedly connected inside the mounting cylinder (1), and an output end of the motor (15) being fixedly connected to one end of a driving roller (13).

3. The night vision compatible airborne display screen according to claim 2, characterized in that: The two transmission rollers (13) rotate to drive the protective film belt to rotate and move.

4. The night vision compatible airborne display screen according to claim 3, characterized in that: The scraping device comprises two first fixed plates (2) and two second fixed plates (7), the two first fixed plates (2) and the two second fixed plates (7) are respectively fixedly connected to the side walls at both ends of the mounting shell (11), a fixed rod (3) is fixedly connected between the side walls of the two first fixed plates (2), a rotating rod (9) is rotatably connected between the two second fixed plates (7), a moving rod (4) is passed through the fixed rod (3) and the rotating rod (9), a scraper (6) is fixedly connected to the bottom side wall of the moving rod (4), the bottom side of the scraper (6) is against the upper side of the protective film band on the surface of the display screen body (10), a guide block (18) is fixedly connected in the through hole of the moving rod (4) passing through the rotating rod (9), a track groove (8) is opened on the side wall of the rotating rod (9), the track groove (8) is arranged in a rhombus track, and one end of the guide block (18) extends into the track groove (8).

5. The night vision compatible airborne display screen according to claim 4, characterized in that: A second fixed plate (7) extends from one end of the rotating rod (9), and a belt (12) is connected between one end of the rotating rod (9) and a driving roller (13).

6. The night vision compatible airborne display screen according to claim 5, characterized in that: The upper and lower sides of the outlet slot (14) are fixedly connected with pressing strips (16), and the two pressing strips (16) in the outlet slot (14) respectively press against the upper and lower side walls of the protective film belt.

7. The night vision compatible airborne display screen according to claim 6, characterized in that: The pressing strips (16) are all made of silicone material.

8. The night vision compatible airborne display screen according to claim 7, characterized in that: Each of the pressing strips (16) is arranged in the shape of a long strip with a triangular cross section, and the length of the pressing strip (16) is greater than the width of the protective film strip.

9. The night vision compatible airborne display screen according to claim 8, characterized in that: The scraper (6) is made of rubber.

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