Surface light source

Abstract

The utility model provides an area light source. A pattern area is arranged on the diffusion plate; the area light source further comprises a plurality of light guide plates, each pattern area corresponds to one light guide plate, and the light guide plates are spliced into a whole light guide plate. The light guide plate is arranged between the reflecting plate and the diffusion plate, and the position of each light guide plate is opposite to the position of the corresponding pattern area; and the light-emitting component is assembled with the reflecting plate, the diffusion plate and the light guide plate assembly. According to the area light source product, the pattern area is designed on the diffusion plate, and the structure of the light guide plate is improved, so that the area light source has a three-dimensional pattern display effect.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a surface light source. Background Art

[0002] Surface light sources are widely used in products such as refrigerators and freezers.

[0003] like Figure 1 As shown, it is a schematic diagram of the structure of a surface light source product in the prior art, including a reflector 1, a light guide plate 3, a diffuser 2, and an appearance plate 8, which are fixed by a frame on all sides.

[0004] This type of surface light source has a single display effect, usually using a single white LED light source. Some products can achieve different cold and warm lighting effects by adjusting the color temperature. However, the above types of surface light sources are only used as lighting lamps, and only have lighting effects, and the functions and display effects are single. Utility Model Content

[0005] The utility model aims to provide a surface light source with a graphic display effect in view of the problem that the display function and display effect of the surface light source in the prior art are single.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A three-dimensional surface light source, comprising: a reflector, a diffuser and a light-emitting component;

[0008] The diffusion plate is provided with a pattern area;

[0009] The surface light source further includes a plurality of light guide plates, each of the pattern areas corresponds to a light guide plate, and the light guide plates are spliced ​​into a whole light guide plate;

[0010] The light guide plate is arranged between the reflective plate and the diffuser plate, and the position of each light guide plate section is opposite to the position of the corresponding pattern area;

[0011] The light emitting component is assembled with a reflection plate, a diffusion plate and a light guide plate assembly.

[0012] In some embodiments of the present invention, the light guide plate includes a central plate and side plates arranged on both sides of the central plate.

[0013] In some embodiments of the present invention, the side panels are symmetrically arranged on both sides of the central panel.

[0014] In some embodiments of the present invention, the side panels are strip-shaped and have the same height as the central panel.

[0015] In some implementations of the present invention, the parts where adjacent light guide plates are spliced ​​form a splicing line, and a shielding pattern is provided on the diffusion plate at a position corresponding to the splicing part of the light guide plates, and the shielding pattern includes but is not limited to shielding lines.

[0016] In some embodiments of the utility model, the pattern area on the diffuser plate includes a stepped pattern arranged on one edge of the diffuser plate, the stepped pattern includes a stepped pattern block corresponding to the central plate, and a stepped pattern block corresponding to each side plate; the light-emitting component is arranged on the same side of the stepped pattern.

[0017] In some embodiments of the utility model, the light-emitting component is a light bar, which is installed on the side edge of the reflection plate, the diffusion plate and the light guide plate combination. The light bar includes lamp beads of various colors, and the color of the lamp beads is selected according to the display requirements in the light guiding area of ​​each light guide plate.

[0018] In some embodiments of the utility model, the light-emitting component is a light bar, which is installed on the side edge of the reflection plate, the diffusion plate and the light guide plate combination. The light bar includes lamp beads, and the lamp beads include first color lamp beads corresponding to the central plate and second color lamp beads corresponding to the side plate.

[0019] In some embodiments of the utility model, a controller is further included, and the controller is connected to the light bar and can independently control the lamp beads corresponding to each light guide plate.

[0020] In some embodiments of the utility model, a frame fixing piece is further included; the frame fixing piece is installed on the side edge of the assembly of the reflection plate, the diffusion plate, the light guide plate and the light-emitting component to fix the assembly.

[0021] In some embodiments of the present invention, each light guide plate is adhered to the reflective plate.

[0022] Compared with the prior art, the technical advantages of the utility model are:

[0023] 1. By designing a pattern area on the diffusion plate and improving the structure of the light guide plate, the surface light source can have the effect of three-dimensional pattern display.

[0024] 2. Through the design of the color of the lamp beads on the light strip and the control of the light emission of the lamp beads, a three-dimensional dynamic pattern display effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 It is a schematic diagram of the structure of a surface light source in the prior art;

[0027] Figure 2 A schematic diagram of the structure of the three-dimensional surface light source in decomposed state provided by the utility model;

[0028] Figure 3 A schematic diagram of the assembly state of the three-dimensional surface light source provided by the utility model;

[0029] Figure 4 A schematic diagram of the assembly state of the three-dimensional surface light source provided by the utility model;

[0030] Figure 5 Schematic diagram of the light bar structure.

[0031] In the above figures:

[0032] 1-Reflector;

[0033] 2-Diffuser plate;

[0034] 3-light guide plate; 301-central plate, 302-side plate;

[0035] 4-Staircase pattern;

[0036] 5-Obstruction lines;

[0037] 601-left border, 602-top border, 603-right border, 604-bottom border;

[0038] 7-light bar, 701-first color lamp bead, 702-second color lamp bead;

[0039] 8- Appearance layer. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] It should be noted that when an element is referred to as being "disposed on", "connected to", or "fixed to" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0042] The utility model provides a surface light source, referring to Figure 2 , including a reflector 1, a diffuser 2 and a light-emitting component, having a three-dimensional image display effect.

[0043] A pattern area is provided on the diffusion plate 2 , and the pattern area can be designed according to display effect requirements and can be processed on the diffusion plate 2 by printing or other methods.

[0044] The surface light source also includes a light guide plate. In the prior art, the light guide plates are all integral structures, and their areas are equal to those of the reflective plate 1 and the diffuser plate 2. In the present invention, the integral light guide plate is cut into a plurality of light guide plates. The number of light guide plates is designed according to the display effect of the pattern area on the diffuser plate 2. Each pattern area corresponds to a light guide plate, and the light guide plates are spliced ​​into an integral light guide plate.

[0045] The light guide plate is disposed between the reflector plate 1 and the diffuser plate 2 and can be fixed by a frame fixing member. In a common implementation, the light guide plate, the reflector plate 1 and the diffuser plate 2 are all square and include four sides. A left frame 601, an upper frame 602, a right frame 603 and a lower frame 604 can be designed at the positions of the four sides to fix the positions between the plates.

[0046] After fixed installation, the position of each light guide plate is opposite to the position of the corresponding pattern area; since each pattern area has a light guide plate to cooperate with it, it can meet the display requirements of each pattern area and achieve better pattern display effects.

[0047] The light-emitting component is assembled with the reflector 1, the diffuser 2 and the light guide plate assembly, and a plurality of light guide plates can be attached to the reflector 1. After the light-emitting component is activated, a three-dimensional pattern display effect is achieved on the diffuser 2.

[0048] Since the parts where adjacent light guide plates are spliced ​​form a splicing line, and the part of the splicing line does not have light-guiding light spots, it will affect the light-emitting display effect. In order to solve this problem, a shielding pattern is set on the diffuser 2 at the position corresponding to the splicing part of the light guide plate, and the shielding pattern includes but is not limited to the shielding line 5. The length and width of the shielding line 5 are adapted to the splicing line design of the light guide plate.

[0049] In some embodiments of the present invention, the pattern area on the diffusion plate 2 includes a central pattern area and side pattern areas on both sides of the central pattern area. Accordingly, the light guide plate includes a central plate 301 and side plates 302 arranged on both sides of the central plate.

[0050] As a preferred embodiment, the pattern area is arranged on the side edge of the diffusion plate 2, and correspondingly, the light-emitting component is arranged on the same side of the pattern area.

[0051] A specific pattern implementation form is taken as an example to illustrate the composition of the pattern area on the diffusion plate 2 and the arrangement form of the light guide plate.

[0052] The diffuser plate 2 is a square plate, and the pattern area on the diffuser plate 2 includes a step pattern 4 arranged on one edge of the diffuser plate 2, and the step pattern 4 includes a step pattern block corresponding to the central plate 301, and a step pattern block corresponding to each side plate; the light-emitting component is arranged on the same side of the step pattern 4.

[0053] In some embodiments of the utility model, the side panels 302 are symmetrically arranged on both sides of the central panel. As shown in the attached drawings, the central panel 301 located in the middle is square and has a large area. Three side panels 302 are correspondingly distributed on both sides of the central panel 301. The width of each side panel 302 is small and is the same height as the central panel 301. A shielding line 5 is provided at the splicing position of each side panel 302 and the central panel 301, and at the splicing position of each adjacent side panel 302. In order to cooperate with the display of the step pattern 4, the width of the central panel 301 is the same as the middle part of the step pattern 4, and each side panel 302 is the same width as a step block of the step pattern 4. When the light-emitting component is lit, each side panel 302 corresponds to the display of a step block pattern, achieving a three-dimensional pattern display effect.

[0054] The assembly status of the surface light source is as follows Figure 3 and Figure 4 As shown, a design pattern can be selected in the central plate 301 as needed.

[0055] The utility model also provides a colorful and dynamic graphic display solution.

[0056] The light emitting component is preferably a light bar 7, which is mounted on the side edge of the reflector 1, diffuser 2 and light guide plate assembly. The light bar includes lamp beads of various colors, and the color of the lamp beads is selected according to the display requirements of the light guide area of ​​each light guide plate.

[0057] Corresponding to the display of the step pattern 4 described in the above embodiment, the light bar 7 is installed on the same side of the step pattern 4. The lamp beads include first color lamp beads 701 corresponding to the central block 301, and second color lamp beads 702 corresponding to the side block 302. The first color lamp beads 701 play a major lighting effect, and white lamp beads can be used, and the second color lamp beads 702 mainly play a pattern display effect, and blue, red, and other color lamp beads can be used.

[0058] In order to dynamically display patterns, the lamp beads can be further controlled by a controller, which is connected to the light bar 7 and can independently control the lamp beads corresponding to each light guide block. For example, the white light constant of the central block 301 can be controlled, and the colored lights of the side blocks 302 can be controlled to light up in time, alternately, and realize a dynamic display effect.

[0059] Furthermore, since the panel is relatively wide, the light bar can be designed as a segmented structure. In this embodiment, the left and right light bars are spliced ​​together to form an integral light-emitting component. Figure 5 The structure of one side of the light bar is shown. The two parts of the light bar can be controlled synchronously or in time-sharing mode.

[0060] The surface light source can be installed in refrigerators, freezers and other products. When the door of the box or cabinet is opened, the controller controls the light bar 7 to be powered on, and controls the light beads of different areas and colors to light up according to the set control program.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A surface light source, characterized in that: include: Reflector, diffuser and light-emitting components; The diffusion plate is provided with a pattern area; The surface light source further includes a plurality of light guide plates, each of the pattern areas corresponds to a light guide plate, and the light guide plates are spliced ​​into a whole light guide plate; The light guide plate is arranged between the reflective plate and the diffuser plate, and the position of each light guide plate section is opposite to the position of the corresponding pattern area; The light emitting component is assembled with a reflection plate, a diffusion plate and a light guide plate assembly.

2. The surface light source according to claim 1, characterized in that: The light guide plate includes a central plate and side plates arranged on both sides of the central plate.

3. The surface light source according to claim 2, characterized in that: The side panels are symmetrically arranged on both sides of the central panel.

4. The surface light source according to claim 2 or 3, characterized in that: The side panels are strip-shaped and have the same height as the central panel.

5. The surface light source according to claim 2 or 3, characterized in that: The pattern area on the diffusion plate includes a step pattern arranged on one side edge of the diffusion plate, and the step pattern includes a step pattern block corresponding to the central plate and a step pattern block corresponding to each side plate; the light-emitting component is arranged on the same side of the step pattern.

6. The surface light source according to claim 1, 2 or 3, characterized in that: The parts where adjacent light guide plates are spliced ​​form a splicing line, and a shielding pattern is arranged on the diffusion plate at a position corresponding to the splicing part of the light guide plate and light guide plates, and the shielding pattern includes but is not limited to shielding lines.

7. The surface light source according to claim 1, characterized in that: The light-emitting component is a light bar, which is installed on the side edge of the reflection plate, the diffusion plate and the light guide plate assembly. The light bar includes lamp beads of various colors. The light guide area of ​​each light guide plate selects the color of the lamp beads according to the display requirements.

8. The surface light source according to claim 2, characterized in that: The light-emitting component is a light bar, which is installed on the side edge of the reflection plate, the diffusion plate and the light guide plate combination. The light bar includes lamp beads, and the lamp beads include first color lamp beads corresponding to the central plate and second color lamp beads corresponding to the side plates.

9. The surface light source according to claim 6, characterized in that: It further includes a controller, which is connected to the light bar and can independently control the lamp beads corresponding to each light guide plate.

10. The surface light source according to claim 1, characterized in that: It further comprises a frame fixing part; the frame fixing part is installed on the side edge of the reflection plate, the diffusion plate, the light guide plate and the light-emitting component assembly to fix the assembly.

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