Backlit contrast display device

By combining the inner support frame, outer support frame, iron sheet, and bar magnets, the complex connection problem of existing backlight contrast display devices is solved, enabling quick disassembly and replacement of the lightbox fabric and simplifying the operation process.

CN224461405UActive Publication Date: 2026-07-07GUANGDONG UPAL DISPLAY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG UPAL DISPLAY TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-07

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  • Figure CN224461405U_ABST
    Figure CN224461405U_ABST
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Abstract

The utility model discloses a kind of backlight contrast display devices, it is related to the technical field of adhering steel reinforcement, including base, the base one side is provided with fixed frame, the base is provided with two light box cloth away from the fixed frame one side, the outer edge of the light box cloth is provided with support outer frame, the inboard of the support outer frame is provided with support inner frame, the outer ring side of the support outer frame is provided with iron sheet.The utility model is connected by the support inner frame, support outer frame, iron sheet and bar magnet, so that the support inner frame and support outer frame of installation light box cloth are fixedly connected by iron sheet and bar magnet adsorption, only need to buckle support inner frame and support outer frame when disassembling, simplify connection mode, it is convenient to quickly disassemble and replace.
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Description

Technical Field

[0001] This utility model relates to the field of steel bonding reinforcement technology, specifically a backlight contrast display device. Background Technology

[0002] When displaying LED backlit light boxes, a special comparison device is needed to demonstrate the contrast effect of the backlit light boxes, allowing two different LED light sources to be displayed in comparison and show different lighting effects.

[0003] In existing comparative display devices, the connection between the lightbox fabric and the display device is made by clips or screws, which is complicated and not convenient for quick disassembly and replacement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a backlight contrast display device. By setting up an inner support frame, an outer support frame, iron sheets and bar magnets, the inner support frame and the outer support frame for installing the lightbox cloth are fixedly connected by the iron sheets and bar magnets. When disassembling, it is only necessary to snap off the inner support frame and the outer support frame, which simplifies the connection method and facilitates quick disassembly and replacement, and can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backlight contrast display device, comprising a base, a fixing frame on one side of the base, two lightbox slots on the side of the base away from the fixing frame, a lightbox cloth in the lightbox slots, a supporting outer frame on the outer edge of the lightbox cloth, a supporting inner frame on the inner side of the supporting outer frame, an iron sheet on the outer ring side of the supporting outer frame, a light-shielding cloth on the outer side of the iron sheet, and a strip magnet on the base corresponding to the position of the light-shielding cloth on the supporting outer frame.

[0006] Furthermore, one of the lightbox fabrics is provided with a dot matrix light-transmitting plate on the upper part, and a frosted acrylic light-transmitting plate is provided on one side of the dot matrix light-transmitting plate.

[0007] Furthermore, a fixing screw is installed on the fixing frame, and a Mini LED light panel is provided inside the fixing frame corresponding to the position of the frosted acrylic light-transmitting plate.

[0008] Furthermore, a traditional LED light panel is provided on one side of the Mini LED light panel, and the base is made of black glossy acrylic material.

[0009] Furthermore, an adjustment switch is connected to the lower side of the fixed frame via a power cord, and a power interface is connected to the adjustment switch via a power cord.

[0010] Furthermore, the adjustment switch includes a power button and a brightness adjustment button.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses an inner support frame, an outer support frame, an iron sheet, and a bar magnet to fix the inner and outer support frames for installing the lightbox fabric by adsorption between the iron sheet and the bar magnet. When disassembling, you only need to snap off the inner and outer support frames, which simplifies the connection method and facilitates quick disassembly and replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of this utility model without the lightbox fabric and the light-transmitting panel;

[0016] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 This is a side sectional view of the lightbox fabric and the supporting inner frame in this utility model.

[0018] Figure 6 This utility model Figure 5 A magnified structural diagram at point B in the middle.

[0019] In the diagram: 1. Power interface; 2. Adjustment switch; 3. Base; 4. Traditional LED light panel; 5. Light box cloth; 6. Mini LED light panel; 7. Dot matrix light-transmitting panel; 8. Frosted acrylic light-transmitting panel; 9. Fixing frame; 10. Fixing screws; 11. Light box slot; 12. Strip magnet; 13. Supporting inner frame; 14. Supporting outer frame; 15. Iron sheet; 16. Light-blocking cloth. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5This embodiment provides a technical solution: a backlight contrast display device, including a base 3, a fixing frame 9 on one side of the base 3, two light box slots 11 on the side of the base 3 away from the fixing frame 9, a light box cloth 5 in the light box slots 11, a supporting outer frame 14 on the outer edge of the light box cloth 5, a supporting inner frame 13 on the inner side of the supporting outer frame 14, an iron sheet 15 on the outer ring side of the supporting outer frame 14, a light-shielding cloth 16 on the outer side of the iron sheet 15, and a strip magnet 12 on the base 3 corresponding to the position of the light-shielding cloth 16 on the supporting outer frame 14.

[0022] like Figure 1-5 As shown, during the display, the lightbox fabric 5 is fixed by the inner support frame 13 and the outer support frame 14. Then, it is magnetically fixed to the bar magnet 12 of the lightbox slot 11 by the iron plate 15 on the outer support frame 14. During disassembly or installation, the bar magnet 12 allows for quick connection and easy disassembly between the outer support frame 14 and the lightbox slot 11. It is connected to a power source via the power interface 1, and the light brightness is adjusted by the switch 2, thus enabling the Mini... The brightness difference between LED light panel 6 and traditional LED light panel 4, along with the different light transmission effects of dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8, results in different light display effects when the lightbox fabric 5 is illuminated, serving as a contrast. Dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8 are located in the same light source groove as the lower lightbox fabric 5, making both of them share the same light source. However, since dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8 are two different types of light-transmitting panels inside the lightbox, the effects after illumination differ, leading to different display effects of the lightbox fabric 5 when illuminated by different light sources.

[0023] One of the lightbox fabrics 5 has a dot matrix light-transmitting plate 7 on its upper part, and a frosted acrylic light-transmitting plate 8 is provided on one side of the dot matrix light-transmitting plate 7.

[0024] Fixing screws 10 are installed on the fixing frame 9, and a Mini LED light panel 6 is set inside the fixing frame 9 corresponding to the position of the frosted acrylic light-transmitting plate 8.

[0025] The Mini LED light panel 6 has a traditional LED light panel 4 on one side, and the base 3 is made of black glossy acrylic material.

[0026] An adjustment switch 2 is connected to the lower side of the fixed frame 9 via a power cord, and a power interface 1 is connected to the adjustment switch 2 via a power cord.

[0027] The adjustment switch 2 includes a power button and a brightness adjustment button.

[0028] The working principle of the backlight contrast display device provided by this utility model is as follows: Figures 1-5As shown, during the display, the lightbox fabric 5 is fixed by the inner support frame 13 and the outer support frame 14. Then, it is magnetically fixed to the bar magnet 12 of the lightbox slot 11 by the iron plate 15 on the outer support frame 14. During disassembly or installation, the bar magnet 12 allows for quick connection and easy disassembly between the outer support frame 14 and the lightbox slot 11. It is connected to a power source via the power interface 1, and the light brightness is adjusted by the switch 2, thus enabling the Mini... The brightness difference between LED light panel 6 and traditional LED light panel 4, along with the different light transmission effects of dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8, results in different light display effects when the lightbox fabric 5 is illuminated, serving as a contrast. Dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8 are located in the same light source groove as the lower lightbox fabric 5, making both of them share the same light source. However, since dot matrix light-transmitting panel 7 and frosted acrylic light-transmitting panel 8 are two different types of light-transmitting panels inside the lightbox, the effects after illumination differ, leading to different display effects of the lightbox fabric 5 when illuminated by different light sources.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A backlit contrast display device, comprising a base (3), characterized in that: A fixing frame (9) is provided on one side of the base (3). Two light box slots (11) are provided on the side of the base (3) away from the fixing frame (9). A light box cloth (5) is provided in the light box slot (11). A supporting outer frame (14) is provided on the outer edge of the light box cloth (5). A supporting inner frame (13) is provided on the inner side of the supporting outer frame (14). An iron sheet (15) is provided on the outer ring side of the supporting outer frame (14). A light-shielding cloth (16) is provided on the outer side of the iron sheet (15). A strip magnet (12) is provided on the base (3) corresponding to the position of the light-shielding cloth (16) on the supporting outer frame (14).

2. The backlight contrast display device according to claim 1, characterized in that: One of the light box fabrics (5) has a dot matrix light-transmitting plate (7) on its upper part, and a frosted acrylic light-transmitting plate (8) is provided on one side of the dot matrix light-transmitting plate (7).

3. The backlight contrast display device according to claim 2, characterized in that: Fixing screws (10) are installed on the fixing frame (9), and a Mini LED light panel (6) is provided inside the fixing frame (9) corresponding to the position of the frosted acrylic light-transmitting plate (8).

4. The backlight contrast display device according to claim 3, characterized in that: The Mini LED light panel (6) has a traditional LED light panel (4) on one side, and the base (3) is made of black glossy acrylic material.

5. A backlight contrast display device according to claim 1, characterized in that: The lower side of the fixed frame (9) is connected to an adjustment switch (2) via a power cord, and the adjustment switch (2) is connected to a power interface (1) via a power cord.

6. The backlight contrast display device according to claim 5, characterized in that: The adjustment switch (2) includes a power button and a brightness adjustment button.