Display box light device and display box

Abstract

The utility model discloses a display box light device and a display box. The display box light device is arranged in a top plate of a display box, a containing cavity with an open bottom end is formed in the top plate, a light reflecting film, a diffusion plate and a light uniformizing plate are sequentially arranged in the containing cavity from top to bottom, a plurality of lamp beads are arranged on the front side end face of the diffusion plate in the length direction, and the lamp beads irradiate from the front end of the diffusion plate to the rear side. The lamp beads are arranged on the inner surface of the front side of the top plate and irradiate from the front end of the diffusion plate to the rear side, the front side lighting effect is achieved, the front side edge of the top plate is ingeniously used for physically shielding an existing dark area, the dark area which can be seen by human eyes is just ingeniously avoided, the dark area cannot be seen under the normal visual angle, and the visual effect is good. According to the front side lighting design mode, the structural characteristics of the top plate of the display box are ingeniously utilized, and the light effect of the lamplight display box can be ideally presented by reasonably arranging the position of the light source and overlapping the light guide materials, so that the visual experience of a user is amazing.

Description

Technical Field

[0001] This utility model relates to the field of display box technology, and in particular to a display box lighting device and a display box including such a lighting device. Background Technology

[0002] Display cases are typically used to store and display various figurines, toys, handicrafts, or for storing shoes. Current display cases are usually made of transparent material. To improve the display effect, lighting is often placed inside the case to enhance the visual appeal. Currently, the lighting inside display cases is usually vertically downward from the top. However, due to the cone-shaped emission characteristics of light, if only one light source is placed at the top of the case, large dark areas will appear inside, affecting the lighting and display effect. To solve this problem, a large number of LEDs are usually arranged at the top of the case to increase the bright areas and weaken the dark areas. However, within a 2cm-3cm illumination range close to the LED light source, dark areas still appear at the intervals between the LEDs, creating an alternating light and dark phenomenon. (See [link to relevant documentation]). Figure 7 The area within the dotted circle is the dark area. The existence of this dark area is a technical barrier that cannot be overcome at present. To solve this problem, a light doubling plate is usually added below the light source. The light doubling plate must be located below the dark area, which results in a large space between the light source and the light doubling plate. In addition, the LEDs need to be arranged very densely to achieve the light doubling effect. This not only increases the thickness of the light panel, but also increases the number of LEDs, making the structure complex and costly. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a display box lighting device with reasonable arrangement, simplified structure, and uniform light, as well as a display box containing such a lighting device.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a display box lighting device, which is installed in the top plate of the display box. The top plate has a cavity with an open bottom. The cavity is provided with a reflective film, a diffuser plate, and a light-diffusing plate arranged from top to bottom. A number of LED beads are arranged along the length direction on the front end face of the diffuser plate. The LED beads irradiate from the front end of the diffuser plate to the rear.

[0005] As a preferred technical solution, a plurality of the lamp beads are mounted on a circuit board, and the circuit board is mounted on the inner surface of the leading edge of the top plate.

[0006] As a preferred technical solution, the inner surface of the leading edge of the top plate is provided with a limiting groove, and the circuit board is vertically slidably installed in the limiting groove.

[0007] As a preferred technical solution, the edge of the light-diffusing plate extends beyond the diffuser plate and abuts against the bottom of the circuit board to limit the circuit board.

[0008] As a preferred technical solution, the reflective film is adhered and fixed to the diffuser plate.

[0009] As a preferred technical solution, the top plate is provided with a limiting post to limit the position of the diffuser plate.

[0010] As a preferred technical solution, the reflective film, the diffuser plate, and the light-diffusing plate are fixed to the top plate by bolts.

[0011] As a preferred technical solution, the left and right edge faces of the diffuser plate are provided with auxiliary reflective films.

[0012] As a preferred technical solution, the rear edge end face of the diffuser plate is provided with an auxiliary reflective film.

[0013] As a preferred technical solution, a display box includes a top plate, a bottom plate, a front plate, a rear plate, a left side plate, and a right side plate, wherein a display box lighting device is provided inside the top plate.

[0014] By adopting the above technical solution, a display box lighting device is provided inside the top plate of the display box. The top plate has a cavity with an open bottom. From top to bottom, a reflective film, a diffuser plate, and a light-diffusing plate are arranged sequentially inside the cavity. Several LED beads are arranged along the length of the front end face of the diffuser plate, illuminating the rear from the front end of the diffuser plate. The beneficial effect of this utility model is that the LED beads are located on the inner front surface of the top plate, illuminating the rear from the front end of the diffuser plate, achieving a front-side lighting effect. Because the dark areas between the LED beads are close to the display box... The front edge of the top panel is cleverly used to physically shield any dark areas, effectively avoiding the dark areas visible to the human eye. This ensures that the dark areas are not visible from any normal viewing angle (horizontal, overhead, or side views), and the area visible to the outside is uniformly bright. This front-lit design cleverly utilizes the structural features of the display box's top panel, rationally arranges the light source positions, and uses the layering of light-guiding materials to achieve an ideal lighting effect, providing a stunning visual experience for users. Attached Figure Description

[0015] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0016] Figure 1 This is an exploded structural diagram of an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3This is a structural cross-sectional view of an embodiment of the present utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 yes Figure 3 Enlarged view of point C in the middle;

[0021] Figure 6 This is a schematic diagram of the top panel installed inside the display case;

[0022] Figure 7 This is a schematic diagram of the dark area between LED chips in the background technology;

[0023] In the diagram: 1-Top plate; 2-Reflective film; 3-Diffuser plate; 4-Light-diffusing plate; 5-LED beads; 6-Circuit board; 7-Limiting slot; 8-L-shaped block; 9-Limiting post. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0025] See Figure 6 A display box includes a top plate 1, a bottom plate, a front plate, a rear plate, a left side plate, and a right side plate. The top plate 1, bottom plate, front plate, rear plate, left side plate, and right side plate are assembled to form a rectangular box structure with internal storage space.

[0026] In order to achieve the lighting effect inside the display box, a display box lighting device is installed inside the top plate 1, specifically inside the open cavity at the bottom of the top plate 1, and the top plate 1 is provided with a baffle around the outside of the lighting device.

[0027] See Figures 1 to 5 A display box lighting device includes a reflective film 2, a diffuser plate 3, and a light-diffusing plate 4 arranged from top to bottom in the cavity. A plurality of LED beads 5 are arranged along the length of the front end face of the diffuser plate 3, and the LED beads 5 illuminate the rear side from the front end of the diffuser plate 3.

[0028] The LED beads 5 are located on the inner front surface of the top plate 1, illuminating the rear from the front end of the diffuser plate 3, thus achieving a front lighting effect. Since the dark area between the LED beads 5 is close to the front of the top plate 1, the front edge of the top plate 1 can be cleverly used to physically shield the existing dark area, effectively avoiding the dark area visible to the human eye (see [link to dark area location]). Figure 6 The circled area indicated by the middle arrow ensures that no dark areas are visible from a normal viewing angle (horizontal, overhead, or side view). The area visible to the outside is uniformly bright. This front-lit design cleverly utilizes the structural features of the top panel 1 of the display box. By rationally arranging the light source positions and using the superposition of light-guiding materials, the light effect of the light display box can be ideally presented, creating a stunning visual experience for users.

[0029] The diffuser plate 3 is correspondingly arranged with the lamp beads 5. The lamp beads 5 emit light at the front end of the diffuser plate 3. After passing through the diffuser plate 3, the light source of the lamp beads 5 can be evenly emitted from the front end to the rear end. The reflective film 2 is arranged above the diffuser plate 3 to prevent light source overflow and reduce light source waste. At the same time, the light-diffusing plate 4 is arranged below the diffuser plate 3 to evenly distribute the light source within the diffuser plate 3. The combination of the reflective film 2, the diffuser plate 3, and the light-diffusing plate 4 forms a new type of light guide material, which can ensure the formation of a uniform surface light source within the top of the box, allowing for better and more uniform light diffusion within the display box.

[0030] In addition, the LED beads 5 in this device are arranged in a row along the width of the display box. By using the diffuser plate 3, the light-diffusing plate 4, and the reflective film 2 together, the linearly arranged light source is formed into a surface light source. Compared with the existing technology that densely lays multiple rows and columns of LED beads 5 on the top, the number of LED beads 5 can be greatly reduced.

[0031] In this embodiment, a 0.18mm reflective film 2, a 3mm diffuser plate 3, and a 1mm light-diffusing plate 4 are selected sequentially from top to bottom, and the three are in contact and bonded together. The overall thickness is less than 4mm, and they are directly placed on the top plate 1, which can significantly reduce the thickness of the top plate 1. While ensuring uniform light diffusion, the size of the display box can be reduced and the storage space of the display box can be expanded.

[0032] To further prevent light source overflow and waste, auxiliary reflective films are provided on the left and right edge faces of the diffuser plate 3. Alternatively, an auxiliary reflective film can also be provided on the rear edge face of the diffuser plate 3. These auxiliary reflective films are used to block the light source on the left, right, and rear sides of the diffuser plate 3, thereby improving light utilization.

[0033] In this embodiment, several LED beads 5 are mounted on a circuit board 6, which is mounted on the inner surface of the front edge of the top plate 1. The circuit board 6 is a PCB integrated board, on which, in addition to the LED beads 5, other modules implementing touch and display functions are also arranged. Alternatively, a light strip can be used to replace the circuit board 6. In this case, the LED beads 5 are fixed to the light strip, which is mounted on the inner surface of the front edge of the top plate 1, and the light strip is then connected to the circuit board via connecting wires. In this application, the circuit board 6 is located on the front side of the top plate 1, achieving the purpose of circuit integration. This allows the entire display box to use only one control circuit board, realizing both the arrangement of the LED beads 5 for front lighting and the operation of touch, screen display, and other functional modes. This reduces the layout space of the display box and minimizes defects caused by connecting wires.

[0034] See Figure 1 and Figure 2 The inner surface of the front edge of the top plate 1 is provided with a limiting groove 7. The circuit board 6 is vertically slidably installed in the limiting groove 7. The limiting groove 7 is composed of two L-shaped blocks 8 arranged opposite to each other. The two L-shaped blocks 8 cooperate to limit the circuit board 6, limiting its left and right and front and back positions.

[0035] See Figure 4 The edge of the light-diffusing plate 4 extends beyond the diffuser plate 3 and abuts against the bottom of the circuit board 6 to limit the position of the circuit board 6. After the light-diffusing plate 4 is fixed, it can limit the vertical position of the circuit board 6, and cooperate with the limiting slot 7 to realize the installation of the circuit board 6. Of course, the circuit board 6 can also be directly fixed to the leading edge of the top plate 1 by screws.

[0036] The reflective film 2 is glued and fixed to the diffuser plate 3. Double-sided tape or glue is applied around the perimeter of the diffuser plate 3, and then the reflective film 2 is glued and fixed to the diffuser plate 3 for easy installation.

[0037] See Figure 5 The top plate 1 is provided with a limiting post 9 to limit the position of the diffuser plate 3. The diffuser plate 3 is provided with a limiting groove or limiting hole corresponding to the limiting post 9, which can make the diffuser plate 3 quickly positioned on the top plate 1 and facilitate installation.

[0038] Mounting holes are provided on the reflective film 2, the diffuser plate 3, and the light-diffusing plate 4 respectively. The top plate 1 is provided with threaded holes corresponding to the mounting holes. The light-diffusing plate 4 is fixed to the threaded holes by screws passing through each mounting hole on its lower surface.

[0039] The vertical width of the lamp bead 5 corresponds to the thickness of the diffuser plate 3.

[0040] The installation method of the top plate 1 with lighting device is as follows: First, the top plate 1 is inverted, and the reflective film 2 and diffuser plate 3, which are glued together, are placed in the cavity of the top plate 1 through the limiting post 9. Then, the circuit board 6 with lamp beads 5 is inserted into the limiting slot 7. Next, the light-diffusing plate 4 is covered on the outside of the diffuser plate 3, and its edge abuts against the end of the circuit board 6. Finally, the light-diffusing plate 4, the diffuser plate 3, and the reflective plate are fixed in the top plate 1 by screws passing through them.

[0041] The reflective film 2, the diffuser plate 3, and the light-diffusing plate 4 are basically the same size, and their dimensions are basically consistent with the internal planar space of the display box, thus achieving a better illumination effect.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A display box lighting device, disposed within the top plate of the display box, wherein the top plate has a cavity with an open bottom, characterized in that: The cavity is provided with a reflective film, a diffuser plate, and a light-diffusing plate in sequence from top to bottom. Several LED beads are arranged along the length of the front end face of the diffuser plate, and the LED beads irradiate from the front end of the diffuser plate to the rear.

2. The display box lighting device as described in claim 1, characterized in that: A plurality of the aforementioned LED beads are mounted on a circuit board, which is mounted on the inner surface of the leading edge of the top plate.

3. The display box lighting device as described in claim 2, characterized in that: The inner surface of the leading edge of the top plate is provided with a limiting groove, and the circuit board is vertically slidably installed in the limiting groove.

4. The display box lighting device as described in claim 2, characterized in that: The edge of the light-diffusing plate extends beyond the diffuser plate and abuts against the bottom of the circuit board to limit the circuit board.

5. The display box lighting device as described in claim 1, characterized in that: The reflective film is adhered and fixed to the diffuser plate.

6. The display box lighting device as described in claim 1, characterized in that: The top plate is provided with a limiting post to limit the position of the diffuser plate.

7. The display box lighting device as described in claim 1, characterized in that: The reflective film, the diffuser plate, and the light-diffusing plate are fixed to the top plate by bolts.

8. The display box lighting device as described in claim 1, characterized in that: The diffuser plate has auxiliary reflective films on its left and right edge faces.

9. The display box lighting device as described in claim 1, characterized in that: An auxiliary reflective film is provided on the rear edge end face of the diffuser plate.

10. A display box, characterized in that: It includes a top plate, a bottom plate, a front plate, a rear plate, a left side plate, and a right side plate, wherein the top plate is provided with a display box lighting device as described in any one of claims 1 to 9.

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