Self-diffusion light guide plate and optical device

Abstract

The utility model belongs to the technical field of light guide plate structures, and particularly relates to a self-diffusion light guide plate which comprises a plate body and an optical structure provided with a diffusion plate, and the plate body and the diffusion plate are respectively provided with correspondingly matched clamping structures for mutual clamping. One surface, facing the optical structure, of the plate body and / or the optical structure are / is provided with a supplementary structure, and the supplementary structure is used for making up light errors caused by the clamping structure. According to the self-diffusion light guide plate, the plate body and the optical structure are connected in the clamping mode, replacement can be carried out when the plate body or the optical structure is damaged, cost is saved, convenience and practicability are achieved, meanwhile, the supplementary structure can compensate for light errors, and the basic functions of the light guide plate cannot be affected by the clamping structure. In addition, the utility model also discloses an optical device comprising the self-diffusion light guide plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of light guide plate structures, and in particular relates to a self-diffusion light guide plate and an optical device. Background Art

[0002] The light guide plate is made of optical grade acrylic / PC sheet, and then with high-tech materials with extremely high refractive index and no light absorption, the light guide points are printed on the bottom of the optical grade acrylic sheet by laser engraving, V-shaped cross grid engraving, and UV screen printing technology. The optical grade acrylic sheet is used to absorb the light emitted from the lamp and stay on the surface of the optical grade acrylic sheet. When the light hits each light guide point, the reflected light will spread to various angles, and then destroy the reflection conditions and be emitted from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly.

[0003] Among them, when the light guide plate is used in actual applications, light spots are easily formed on the light guide plate body, affecting its optical performance. In order to have better optical performance, most current light guide plates are installed with other optical sheets to form an integrated body, resulting in the need to completely replace the composite light guide plate when light spots appear on the light guide plate body. Therefore, it is urgent to propose a new technical solution to solve the above problem. Utility Model Content

[0004] One of the purposes of the utility model is to provide a self-diffusing light guide plate in view of the deficiencies of the prior art, which facilitates the replacement of the plate body by providing a snap-fit ​​plate body and an optical structure, and is convenient and practical.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-diffusing light guide plate comprises a plate body and an optical structure provided with a diffusion plate, wherein the plate body and the diffusion plate are respectively provided with corresponding matching snap-in structures for snapping into each other, and a side of the plate body facing the optical structure and / or the optical structure is provided with a supplementary structure, wherein the supplementary structure is used to compensate for the light error caused by the snap-in structure.

[0007] As an improvement of the self-diffusing light guide plate described in the utility model, the plate body is provided with a groove surrounding the plate body, the diffusion plate is provided with an extension piece extending toward the plate body, and the extension piece is provided with a protrusion corresponding to the groove.

[0008] As an improvement of the self-diffusing light guide plate described in the utility model, a support block larger than the width of the plate body is arranged below the plate body, and the diffusion plate is provided with an opening, and the opening is used to accommodate the plate body.

[0009] As an improvement of the self-diffusing light guide plate described in the utility model, a microstructure is arranged on one side of the plate body facing the diffusion plate, and a plurality of microstructures are arranged.

[0010] As an improvement of the self-diffusing light guide plate described in the utility model, the diffusion plate includes a plastic layer and diffusion particles in the plastic layer, and the number of the diffusion particles is multiple.

[0011] As an improvement of the self-diffusing light guide plate described in the utility model, a plurality of vertical diffusion bodies are arranged on one side of the diffusion plate away from the plate body, and the plurality of vertical diffusion bodies are wavy and closely arranged.

[0012] As an improvement of the self-diffusing light guide plate described in the utility model, the optical structure also includes a prism body, which is arranged on a side of the diffusion plate away from the plate body, and the prism body includes a first prism and a second prism that are alternately arranged, and the height of the second prism is smaller than the height of the first prism.

[0013] As an improvement of the self-diffusing light guide plate described in the utility model, the optical structure further includes a condenser sheet, and the condenser sheet is arranged between the diffuser plate and the prism body.

[0014] As an improvement of the self-diffusing light guide plate described in the utility model, the self-diffusing light guide plate further comprises a reflective sheet, and the reflective sheet is arranged on a side of the plate body away from the diffuser plate.

[0015] In the utility model, the snap-fit ​​structures are provided with two types, one is the groove and the protrusion that match each other, and the other is the diffuser plate with the opening and the plate body with the support block; the supplementary structures are provided with four types, namely: the diffuser plate formed by the diffuser particles and the plastic layer, the first prism and the second prism that are alternately arranged and have different heights, the microstructure and the diffuser vertical member; in actual application, the snap-fit ​​structure can be set in one way, and the compensation result can be selected in at least one way.

[0016] A second objective of the present invention is to provide an optical device, comprising the self-diffusing light guide plate as described above.

[0017] The beneficial effect of the utility model is that the self-diffusing light guide plate of the utility model comprises a plate body and an optical structure provided with a diffusion plate, the plate body and the diffusion plate are respectively provided with corresponding matching snap-in structures for snapping with each other, and the plate body is provided with a supplementary structure on one side facing the optical structure and / or the optical structure, and the supplementary structure is used to compensate for the light error caused by the snap-in structure. The self-diffusing light guide plate of the utility model can be replaced when the plate body or the optical structure is damaged by snap-connecting the plate body and the optical structure, without replacing the entire light guide plate, thereby saving costs, being convenient and practical, and at the same time, the supplementary structure can compensate for the light error, and the snap-in structure will not affect the basic function of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0019] Figure 1 It is a structural schematic diagram of implementation mode 1 of the present utility model.

[0020] Figure 2 It is a structural schematic diagram of implementation mode 2 of the present utility model.

[0021] Figure 3 It is a structural schematic diagram of implementation mode 3 of the present utility model.

[0022] Figure 4 It is a structural schematic diagram of implementation mode 4 of the present utility model.

[0023] Figure 5 It is a schematic structural diagram of a diffusion plate in a fourth embodiment of the present utility model.

[0024] The reference numerals are described as follows:

[0025] 1- plate body; 11- groove; 12- support block; 13- microstructure;

[0026] 2-optical structure; 21-diffuser plate; 211-extension piece; 2111-protrusion; 212-plastic layer; 213-diffuser particles; 214-diffuser vertical body; 215-opening; 22-prism body; 221-first prism; 222-second prism; 23-condenser sheet;

[0027] 3-Reflective sheet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific implementation methods and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0030] Reference to "embodiment" in this application means that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0033] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0034] The term "plurality" used in the present application refers to two or more (including two).

[0035] The following is combined with Figures 1 to 5 The utility model is further described in detail with specific implementation methods, but it is not intended to limit the utility model. It should be noted that the dotted lines in the drawings are used to distinguish components with different names, which do not exist in reality.

[0036] Implementation Method 1

[0037] The following is combined with Figure 1 Description of Implementation Method 1

[0038] A self-diffusing light guide plate comprises a plate body 1 and an optical structure 2 provided with a diffusion plate 21. The plate body 1 and the diffusion plate 21 are respectively provided with corresponding matching snap-in structures for mutual snap-in connection. A side of the plate body 1 facing the optical structure 2 and / or the optical structure 2 are provided with a supplementary structure.

[0039] In this embodiment, the diffuser plate 21 has an extension piece 211 extending toward the plate body 1, and the snap-fit ​​structure includes a matching groove 11 and a protrusion 2111, the groove 11 is arranged around the plate body 1, and the protrusion 2111 is arranged at a position of the extension piece 211 corresponding to the groove 11, or the protrusion 2111 is arranged around the plate body 1, and the groove 11 is arranged at a position of the extension piece 211 corresponding to the protrusion 2111.

[0040] In this embodiment, the supplementary structure is a microstructure 13 disposed on the plate body 1 . Specifically, the microstructure 13 is disposed on a surface of the plate body 1 facing the diffuser plate 21 , and a plurality of microstructures 13 are disposed.

[0041] In actual applications, the plate body 1 is prone to light spots due to multiple light exposures, while in the prior art the plate body and the optical structure are integrated. When light spots appear on the plate body, the light guide plate needs to be replaced as a whole in order not to affect the use. The present technical solution adopts a snap-in structure, so that the plate body 1 and the optical structure 2 are snap-in arranged. When light spots appear on the plate body 1, there is no need to replace the entire light guide plate, but only the plate body 1 needs to be replaced, thus saving replacement costs and being convenient and practical. At the same time, the present embodiment is provided with a supplementary structure for compensating for the light error caused by the snap-in structure, and specifically in the present embodiment, the groove 11 and the protrusion 2111 are used for the snap-in of the plate body 1 and the optical structure 2, and the microstructure 13 can compensate for the light error caused by the setting of the extension 211.

[0042] Implementation Method 2

[0043] like Figure 2As shown, different from the first embodiment, the snap-on structure of this embodiment is a matching opening 215 and a convex structure. Specifically, a support block 12 larger than the width of the plate body 1 is provided below the plate body 1, the support block 12 and the plate body 1 form a convex structure, and the diffuser plate 21 is provided with an opening 215, and the opening 215 is used to accommodate the plate body 1; the supplementary structure is the structure of the diffuser plate 21, the diffuser plate 21 includes a plastic layer 212 and diffusion particles 213 in the plastic layer 212, and there are multiple diffusion particles 213. The diffusion particles 213 can diffuse light in multiple directions to compensate for the light error caused by the opening 215 and the convex structure.

[0044] The other structures are the same as those in the first embodiment and will not be described again here.

[0045] Implementation Method 3

[0046] like Figure 3 As shown, different from the second embodiment, the supplementary structure of this embodiment is a prism body 22. Specifically, the prism body 22 is arranged on the side of the diffuser plate 21 away from the plate body 1. The prism body 22 includes a first prism 221 and a second prism 222 that are alternately arranged. The height of the second prism 222 is less than the height of the first prism 221. At the same time, the light guide plate also includes a reflective sheet 3. The reflective sheet 3 is arranged on the side of the plate body 1 away from the diffuser plate 21. The reflective sheet 3 can reflect the light scattered or reflected from the plate body 1 back to the plate body 1 to prevent the light source from leaking out.

[0047] The other structures are the same as those in the second embodiment and will not be described again here.

[0048] Implementation Method 4

[0049] like Figure 4 and Figure 5 As shown, different from the third embodiment, the supplementary structure of this embodiment also includes a diffuser plate 21 provided with a diffuser vertical body 214. Specifically, the diffuser vertical body 214 is arranged on a side of the diffuser plate 21 away from the plate body 1. A plurality of diffuser vertical bodies 214 are provided. The plurality of diffuser vertical bodies 214 are wavy and closely arranged. In addition, the optical structure 2 also includes a focusing sheet 23. The focusing sheet 23 is arranged between the diffuser plate 21 and the prism body 22. The focusing sheet 23 can increase the use efficiency of light after being emitted from the diffuser 21.

[0050] The other structures are the same as those in the third embodiment and will not be described again here.

[0051] It can be understood that the snap-in structures and supplementary structures in the above-mentioned embodiments one to four can be replaced and matched, and the light guide plate only needs to include at least one snap-in structure and one supplementary structure. In some other embodiments, the optical structure 2 can also be provided with other optical parts such as polarization converters, which can be arranged according to actual needs without specific requirements.

[0052] Implementation Method 5

[0053] An optical device includes the self-diffusion light guide plate of embodiment 1, embodiment 2, embodiment 3 or embodiment 4.

[0054] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A self-diffusing light guide plate, characterized in that: The invention comprises a plate body (1) and an optical structure (2) provided with a diffuser plate (21), wherein the plate body (1) and the diffuser plate (21) are respectively provided with corresponding matching snap-fit ​​structures for mutually snap-fitting, and a supplementary structure is provided on one side of the plate body (1) facing the optical structure (2) and / or the optical structure (2), wherein the supplementary structure is used to compensate for light errors caused by the snap-fit ​​structures.

2. The self-diffusing light guide plate according to claim 1, wherein: The plate body (1) is provided with a groove (11) surrounding the plate body (1), the diffuser plate (21) is provided with an extension piece (211) extending in a direction toward the plate body (1), and the extension piece (211) is provided with a protrusion (2111) corresponding to the groove (11).

3. The self-diffusing light guide plate according to claim 1, wherein: A support block (12) having a width greater than that of the plate body (1) is provided below the plate body (1), and an opening (215) is provided on the diffusion plate (21), wherein the opening (215) is used to accommodate the plate body (1).

4. The self-diffusing light guide plate according to claim 1, wherein: A microstructure (13) is provided on one side of the plate body (1) facing the diffuser plate (21), and a plurality of microstructures (13) are provided.

5. The self-diffusing light guide plate according to claim 1, characterized in that: The diffusion plate (21) comprises a plastic layer (212) and diffusion particles (213) in the plastic layer (212), and the diffusion particles (213) are multiple.

6. The self-diffusing light guide plate according to claim 1, wherein: A plurality of vertical diffusion bodies (214) are provided on one side of the diffusion plate (21) away from the plate body (1); the plurality of vertical diffusion bodies (214) are wavy and closely arranged.

7. The self-diffusing light guide plate according to claim 1, wherein: The optical structure (2) further comprises a prism body (22), wherein the prism body (22) is arranged on a side of the diffuser plate (21) away from the plate body (1), and the prism body (22) comprises a first prism (221) and a second prism (222) which are alternately arranged, and the height of the second prism (222) is smaller than the height of the first prism (221).

8. The self-diffusing light guide plate according to claim 7, wherein: The optical structure (2) further comprises a light-collecting sheet (23), wherein the light-collecting sheet (23) is arranged between the diffusion plate (21) and the prism body (22).

9. The self-diffusing light guide plate according to claim 1, wherein: It also comprises a reflective sheet (3), wherein the reflective sheet (3) is arranged on a side of the plate body (1) away from the diffuser plate (21).

10. An optical device, characterized in that: It comprises the self-diffusing light guide plate as described in any one of claims 1-9.

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