Light guide assembly with smooth edge
By designing the inlet and cutting lines of the light guide plate at the edge of the light guide plate, the edge cutting and polishing process is performed after forming, the rough cutting problem of the light guide plate is solved, the edge is smooth, and the quality of the light guide plate and the backlight display effect are improved. .
Patent Information
- Application Number
- CN202420050511.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing light guide plates have rough and uneven cuts after cutting, resulting in a strong contrast between the concentration and the edges, affecting the backlight display effect.
Design a light guide assembly with smooth edges. The edge of the light guide plate main body is equipped with a light guide plate inlet and cutting line. The length of the cutting line is consistent with the length of the light guide plate main body. The edges are uniform and smooth through the whole edge cutting and polishing process to avoid brightness. Line contrast.
The edges of the light guide plate are smooth and neat, the quality of the light guide plate is improved, the bright line contrast generated by the incision concentration is avoided, and the backlight display effect is improved.
Smart Images
Figure CN222178567U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a light guide component, more specifically, to a light guide component with smooth edges. Background Art
[0002] The light guide plate is an important component in the backlight structure. The common light guide plate is injection molded. Figure 1 and Figure 2 As shown, after the light guide plate 100 is formed, the glue 200 needs to be cut off. After the cut, the cut 300 is rough and uneven, which will focus the light. At the same time, the cut and the edge are easily misaligned, and the light focus of the cut forms a strong contrast with the uniform and smooth edge. As the border of the backlight product becomes narrower and narrower, the edge of the light guide plate is closer and closer to the viewing area. The cut of the light guide plate focuses light, forming a bright line at the edge of the viewing area, affecting the backlight display effect.
[0003] Chinese invention patent document CN110027230A discloses a method for processing a light guide plate with a special-shaped structure, comprising the following steps: drying the raw material for making the light guide plate; importing the structural parameters into a mold processing device and completing computer settings, and processing a plurality of mold cores without special-shaped structures accordingly; performing preliminary processing on the mold core to obtain a primary mold; performing fine processing on the primary mold to obtain a finished injection mold; hot-melting the dried raw material for making the light guide plate, and introducing the hot-melted raw material into the mold cavity of the finished injection mold, cooling and shrinking it, and continuously adding the molten raw material for making the light guide plate into the mold cavity under pressure to shape it; finally, the mold cavity is depressurized and cooled and solidified, and the mold is opened to obtain a semi-finished light guide plate; the semi-finished light guide plate is cut at high temperature to obtain a light guide plate with a special-shaped structure; the light guide plate is polished and fine-processed; the light guide plate after the above polishing and fine-processing is cleaned and dried to obtain a finished light guide plate.
[0004] Obviously, the light guide plate of the patent has no special-shaped structure during injection molding, so no weld line will be generated during the injection molding process, which improves the strength of the light guide plate and reduces the occurrence of cracking during polishing of the light guide plate. This structure cannot solve the existing problem of incision focusing.
[0005] Chinese utility model patent document CN207799135U discloses a special-shaped light guide plate for a backlight module, including a light guide plate and a back plate, wherein a convex structure is arranged on the outer side of the light guide plate, and a back plate is installed below the light guide plate, a baffle frame is arranged on the side of the back plate, and a back plate groove matching the convex structure is provided on the back plate, a convex bottom plate is arranged on the convex structure, and a convex top plate is fixed on the top of the convex structure. Symmetrical convex structures are arranged on both the front and rear sides of the light guide plate, and the convex bottom plate arranged on the convex structure is located in the same plane as the upper surface of the light guide plate, and the convex top plate arranged above the convex structure is located in the same plane as the top of the back plate groove arranged on the back plate. Two groups of back plate grooves matching the convex structure arranged on the side of the light guide plate are arranged on the back plate, and the back plate grooves are inclined structures, and the inclined structure of the back plate grooves corresponds to the inclined surface layer arranged at the front end of the convex structure. The four groups of baffle frames of the enclosed structure arranged above the back plate are not connected to each other, and the corners above the baffle frames are rounded chamfered. The back plate is provided with inwardly inclined baffle frames all around, and the grooves arranged inside the baffle frames match the inclined structure below the light guide plate.
[0006] Obviously, the patent adopts a protruding structure of the light guide plate that can cooperate with the back plate, instead of the smooth and straight edge of the traditional light guide plate, thereby reducing the requirements for the light guide plate mold and reducing costs. This structure also cannot solve the problem of existing cutout focusing. Utility Model Content
[0007] Based on this, it is necessary to provide a light guide component with smooth edges in order to solve the above technical problems. The light guide component with smooth edges includes a light guide plate body. The edge of the light guide plate body is provided with a light guide plate glue inlet. A cutting line is provided between the light guide plate glue inlet and the light guide plate body. The length of the cutting line is consistent with the length of the light guide plate body. A pair of first cutting marks are provided at the edge of the light guide plate glue inlet. A pair of second cutting marks are provided at the edge of the light guide plate body. The second cutting marks match the first cutting marks. The distance from the first cutting mark to the cutting line is equal to the distance from the second cutting mark to the cutting line. Since the length of the cutting line is consistent with the length of the light guide plate body, after the light guide plate is formed, the edges are cut off and then polished to make the edges of the light guide plate body uniform and smooth, avoid the bright line contrast caused by the incision focusing, and improve the quality of the light guide plate.
[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0009] A light guide component with a smooth edge, characterized in that the light guide component with a smooth edge comprises a light guide plate body, a light guide plate glue inlet is provided at the edge of the light guide plate body, a cutting line is provided between the light guide plate glue inlet and the light guide plate body, and the length of the cutting line is consistent with the length of the light guide plate body.
[0010] As a preferred embodiment of the smooth-edge light guide component provided by the utility model, a pair of first cutting marks are provided on the edge of the light guide plate glue inlet, and a pair of second cutting marks are provided on the edge of the light guide plate body, and the second cutting marks match the first cutting marks.
[0011] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the distance from the first cutting mark to the cutting line is equal to the distance from the second cutting mark to the cutting line.
[0012] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the distance from the first cutting mark position to the cutting line is between 0.01 mm and 0.04 mm.
[0013] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the distance from the first cutting mark position to the cutting line is 0.02 mm.
[0014] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the first cutting mark position and the second cutting mark are both cross-shaped.
[0015] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the first cutting mark position and the second cutting mark are both circular.
[0016] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the first cutting mark position and the second cutting mark are both in the shape of a cross.
[0017] As a preferred implementation of the light guide component with smooth edges provided by the utility model, a preset shrinkage groove is provided on the cutting line.
[0018] As a preferred implementation of the light guide component with smooth edges provided by the utility model, the shrinkage groove is in an arc shape.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] The utility model provides a light guide component with smooth edges. Since the length of the cutting line is consistent with the length of the light guide plate body, after the light guide plate is formed, the edge is cut and then polished to make the edge of the light guide plate body uniform and smooth, avoid the bright line contrast caused by the incision focusing, and improve the quality of the light guide plate.
[0021] In addition, a pair of first cutting marks can be provided on the edge of the glue inlet of the light guide plate, and a pair of second cutting marks can be provided on the edge of the light guide plate body, and the second cutting marks can be matched with the first cutting marks. The distance from the first cutting mark to the cutting line is equal to the distance from the second cutting mark to the cutting line. The distance from the first cutting mark to the cutting line is between 0.01 mm and 0.04 mm. Preferably, the distance from the first cutting mark to the cutting line is 0.02 mm. The first cutting mark and the second cutting mark can be used to assist the laser cutting machine in rapid alignment, thereby achieving precise cutting.
[0022] In addition, the first cutting mark and the second cutting mark can be both cross-shaped. Alternatively, the first cutting mark and the second cutting mark can be both circular. Alternatively, the first cutting mark and the second cutting mark can be both cross-shaped. The cross-shaped first cutting mark and the second cutting mark can assist the laser cutting machine in fast horizontal positioning and vertical positioning, thereby achieving precise cutting.
[0023] In addition, a preset shrinkage groove can be provided on the cutting line. The shrinkage groove is in an arc shape. During laser cutting, the shrinkage groove will automatically shrink into an arc shape under the high temperature of the laser, which is convenient for the next step of grinding and further improves the quality of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 is a schematic diagram of the structure of an existing light guide plate;
[0026] Figure 2 for Figure 1 A schematic diagram of a partial structure of a light guide plate in FIG.
[0027] Figure 3 It is a structural schematic diagram of a light guide assembly with smooth edges of the utility model;
[0028] Figure 4It is a structural schematic diagram of another embodiment of the light guide assembly with smooth edges of the utility model;
[0029] Figure 5 for Figure 4 A detailed enlarged schematic diagram of area A in FIG.
[0030] Figure 6 It is a structural schematic diagram of another embodiment of the light guide assembly with smooth edges of the utility model;
[0031] Figure 7 for Figure 6 A detailed enlarged schematic diagram of the B area;
[0032] Figure 8 It is a structural schematic diagram of another embodiment of the light guide assembly with smooth edges of the utility model;
[0033] Fig. 9 for Figure 8 A detailed enlarged schematic diagram of the C region in FIG.
[0034] Fig.10 It is a structural schematic diagram of another embodiment of the light guide assembly with smooth edges of the utility model;
[0035] The markings in the figure are as follows: 1. Light guide plate body; 11. Second cutting mark; 2. Light guide plate glue inlet; 21. First cutting mark position; 3. Cutting line; 31. Shrinkage groove. DETAILED DESCRIPTION
[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0037] As described in the background technology, in the prior art, the light guide plate is an important component in the backlight structure. The common light guide plate is injection molded. Figure 1 and Figure 2 As shown, after the light guide plate 100 is formed, the glue 200 needs to be cut off. After the cut, the cut 300 is rough and uneven, which will focus the light. At the same time, the cut and the edge are easily misaligned, and the light focus of the cut forms a strong contrast with the uniform and smooth edge. As the border of the backlight product becomes narrower and narrower, the edge of the light guide plate is closer and closer to the viewing area. The cut of the light guide plate focuses light, forming a bright line at the edge of the viewing area, affecting the backlight display effect.
[0038] In order to solve this technical problem, the utility model provides a light guide component with smooth edges, including a light guide plate main body 1, a light guide plate glue inlet 2 is provided at the edge of the light guide plate main body 1, a cutting line 3 is provided between the light guide plate glue inlet 2 and the light guide plate main body 1, and the length of the cutting line 3 is consistent with the length of the light guide plate main body 1.
[0039] Through the above-mentioned structural design, since the length of the cutting line 3 is consistent with the length of the light guide plate body 1, after the light guide plate is formed, the edge is cut and then polished to make the edge of the light guide plate body 1 uniform and smooth, avoiding the bright line contrast caused by the incision focusing, thereby improving the quality of the light guide plate.
[0040] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0043] Example 1
[0044] like Figure 1 and Figure 2 As shown, the light guide assembly with smooth edges includes a light guide plate body 1, the edge of the light guide plate body 1 is provided with a light guide plate glue inlet 2, a cutting line 3 is provided between the light guide plate glue inlet 2 and the light guide plate body 1, and the length of the cutting line 3 is consistent with the length of the light guide plate body 1.
[0045] The working mode of this embodiment is described below.
[0046] Since the length of the cutting line 3 is consistent with the length of the light guide plate body 1, after the light guide plate is formed, the edges are trimmed and then polished to make the edges of the light guide plate body 1 uniform and smooth, avoiding the bright line contrast caused by the incision focusing and improving the quality of the light guide plate.
[0047] Example 2
[0048] The light guide assembly with smooth edges provided in Example 1 is further optimized. Specifically, a pair of first cutting mark positions 21 are provided at the edge of the light guide plate glue inlet 2, and a pair of second cutting marks 11 are provided at the edge of the light guide plate body 1. The second cutting marks 11 cooperate with the first cutting mark positions 21.
[0049] It should be noted that the distance from the first cutting mark 21 to the cutting line 3 is equal to the distance from the second cutting mark 11 to the cutting line 3 .
[0050] In addition, the distance from the first cutting mark position 21 to the cutting line 3 is between 0.01 mm and 0.04 mm. Preferably, the distance from the first cutting mark position 21 to the cutting line 3 is 0.02 mm.
[0051] The working mode of this embodiment is described below.
[0052] The first cutting mark 21 and the second cutting mark 11 can be used to assist the laser cutting machine in rapid alignment, thereby achieving precise cutting.
[0053] Example 3
[0054] The light guide assembly with smooth edges provided in Example 1 or 2 is further optimized. Specifically, the first cutting mark position 21 and the second cutting mark 11 are both cross-shaped. Alternatively, the first cutting mark position 21 and the second cutting mark 11 are both circular. Alternatively, the first cutting mark position 21 and the second cutting mark 11 are both cross-shaped.
[0055] The working mode of this embodiment is described below.
[0056] The cross-shaped first cutting mark 21 and the second cutting mark 11 can be used to assist the laser cutting machine in rapid lateral positioning as well as longitudinal positioning, thereby achieving precise cutting.
[0057] Example 4
[0058] The light guide assembly with smooth edges provided in Embodiment 1 or 2 is further optimized. Specifically, a preset shrinkage groove 31 is provided on the cutting line 3 .
[0059] It should be noted that the shrinkage groove 31 is in an arc shape.
[0060] The working mode of this embodiment is described below.
[0061] During laser cutting, the shrinkage groove 31 will automatically shrink into an arc shape under the high temperature of the laser, which is convenient for the next step of grinding and further improves the quality of the light guide plate.
[0062] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.
[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0064] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A light guide assembly with smooth edges, characterized in that: The light guide assembly with smooth edges comprises a light guide plate body (1), the edge of the light guide plate body (1) is provided with a light guide plate glue inlet (2), a cutting line (3) is provided between the light guide plate glue inlet (2) and the light guide plate body (1), and the length of the cutting line (3) is consistent with the length of the light guide plate body (1).
2. The light guide assembly with smooth edges according to claim 1, characterized in that: A pair of first cutting mark positions (21) are provided at the edge of the light guide plate glue inlet (2), and a pair of second cutting marks (11) are provided at the edge of the light guide plate body (1), wherein the second cutting marks (11) match the first cutting mark positions (21).
3. The light guide assembly with smooth edges according to claim 2, characterized in that: The distance between the first cutting mark position (21) and the cutting line (3) is equal to the distance between the second cutting mark (11) and the cutting line (3).
4. The light guide assembly with smooth edges according to claim 3, characterized in that: The distance between the first cutting mark position (21) and the cutting line (3) is between 0.01 mm and 0.04 mm.
5. The light guide assembly with smooth edges according to claim 4, characterized in that: The distance between the first cutting mark position (21) and the cutting line (3) is 0.02 mm.
6. The light guide assembly with smooth edges according to claim 2, characterized in that: The first cutting mark (21) and the second cutting mark (11) are both in the shape of a cross.
7. The light guide assembly with smooth edges according to claim 2, characterized in that: The first cutting mark (21) and the second cutting mark (11) are both circular.
8. The light guide assembly with smooth edges according to claim 2, characterized in that: The first cutting mark (21) and the second cutting mark (11) are both in the shape of a cross.
9. The light guide assembly with smooth edges according to claim 1, characterized in that: The cutting line (3) is provided with a preset shrinkage groove (31).
10. The light guide assembly with smooth edges according to claim 9, characterized in that: The shrinkage groove (31) is in an arc shape.