A light guide plate structure

Abstract

The present invention discloses a light guide plate structure, belonging to the field of display. A light guide plate structure. It includes a light guide plate; a coated white film is attached to one end face of the light guide plate; a plurality of mesh dot structures are arranged on one end face where the coated white film and the light guide plate are attached, and are constructed to be recessed into the coated white film to form a concave surface, and the concave surface is a smooth curved surface. Compared with the prior art, the light guide plate structure of the present application is more convenient to assemble, and the reflective sheet is integrated into the coated white film. When the coated white film is attached, the arrangement of the reflective mesh dot structure is completed, which is more convenient for assembly and is not prone to offset.

Description

Technical Field

[0001] The invention relates to the field of displays, and in particular to a light guide plate. 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] Most existing light guide plates have reflective sheets attached to them. During the assembly process, optical problems caused by reflective sheet offset and normal defects such as white spots and foreign matter are prone to occur. In addition, the adhesion area between the reflective sheet and the light guide plate is limited, and the reflective sheet is easy to fall off the light guide plate. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention proposes a light guide plate structure to solve the technical problems of the prior art light guide plate structure, such as complex assembly operation, easy deviation and high defect rate.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A light guide plate structure, comprising:

[0007] Light guide plate;

[0008] Applying a white film and attaching it to one end surface of the light guide plate;

[0009] A plurality of dot structures are arranged on one end surface where the coated white film is attached to the light guide plate, and are constructed to be sunken into the coated white film to form a concave surface, and the concave surface is a smooth curved surface.

[0010] Furthermore, the concave surface of the mesh structure is hemispherical.

[0011] Furthermore, the coating white film is made of PET material.

[0012] Furthermore, it also includes a plurality of pressing plates, each of which is arranged on a side of the light guide plate away from the coated white film, and is arranged close to an end of the light guide plate away from the coated white film, and the pressing plate extends to the outer edge of the light guide plate, and a flange is fixedly connected to the pressing plate, and a threaded hole is opened on the flange;

[0013] A rotating plate is hinged on the pressure plate, and a mounting hole is opened on the rotating plate. The mounting hole is parallel to the threaded hole. The rotating plate is constructed so that when the mounting hole is aligned with the threaded hole, the edge of the coated white film can be pressed tightly onto the light guide plate; a bolt is arranged in the mounting hole, and the bolt passes through the mounting hole and is connected to the threaded hole.

[0014] Furthermore, when the threaded hole is aligned with the mounting hole, the distance between the rotating plate and the light guide plate is smaller than the thickness of the coated white film.

[0015] Furthermore, the threaded holes and the mounting holes are both arranged along the length direction of the light guide plate.

[0016] Furthermore, a mold frame is provided on the periphery of the light guide plate, a slot is provided on the pressing plate, and the mold frame is detachably engaged in the slot.

[0017] Furthermore, it also includes a mold frame, which is sleeved on the outside of the light guide plate. The mold frame is punched to form a flange, and the flange presses the edge portion of the coated white film onto the light guide plate.

[0018] Beneficial effects of the present invention:

[0019] Compared with the prior art, the light guide plate of the present invention, by providing a coated white film with a dot structure, does not need to attach a reflective sheet externally, and as long as the coated white film is aligned and attached to the light guide plate, the dot structure can be aligned, reducing the offset of reflective points during the assembly process, improving assembly accuracy, and reducing normal defects such as white spots and foreign matter.

[0020] On the other hand, the coated white film itself is a reflective material. While forming the dot structure, the coated white film is also fully utilized to improve the reflectivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the light guide plate of the present application;

[0023] Figure 2 This is a schematic cross-sectional view of the light guide plate structure of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the pressing plate and the rotating plate of this application;

[0025] Figure 4 This is a structural schematic diagram of the pressure plate and the rotating plate of the present application from another perspective.

[0026] The components corresponding to the numbers in the figure are as follows:

[0027] 1. Coating white film; 2. Light guide plate; 3. Pressing plate; 4. Rotating plate; 5. Bolts; 6. Grid structure; 31. Flange. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1-3 As shown, a light guide plate structure includes: a light guide plate 2; a coated white film 1 attached to one end surface of the light guide plate 2; and a plurality of mesh structures 6, arranged on one end surface where the coated white film 1 and the light guide plate 2 are bonded, and constructed to be recessed into the coated white film 1 to form a concave surface, and the concave surface is a smooth curved surface.

[0031] The working principle of the present invention is described in detail below. According to the light guide plate structure of the present invention, when assembling, the coated white film 1 with the mesh structure 6 processed is first attached to the end face of the light guide plate 2. In this way, when light is incident, since the mesh structure 6 on the coated white film 1 has the same function as the reflective sheet, there is no need to attach the reflective sheet externally, and as long as the coated white film 1 and the light guide plate 2 are aligned and attached, the mesh structure 6 can be aligned, the deviation of the reflective points during the assembly process is reduced, the assembly accuracy is improved, and the normal defects such as white spots and foreign matter are reduced.

[0032] On the other hand, the coated white film 1 itself is a reflective material. When the mesh structure 6 is formed, the coated white film 1 is fully utilized to improve the reflectivity.

[0033] More specifically, the concave surface of the mesh structure 6 is hemispherical, and after the light enters the light guide plate 2, it passes through the spherical mesh structure to more effectively form a surface light source. The coated white film 1 is made of PET, a reflective material.

[0034] In addition, in this embodiment, the light guide plate structure of the present invention further includes a mold frame, which is mounted on the outside of the light guide plate 2 and is stamped to form a flange, which presses the edge of the coated white film 1 onto the light guide plate 2.

[0035] That is to say, the operator first sets the mold frame on the outer edge of the light guide plate 2, and the mold frame and the light guide plate 2 can be clearance-fitted, and at this time, the two sides of the mold frame are higher than the combination of the light guide plate 2 and the coated white film 1. At this time, the part of the mold frame that is higher than the light guide plate 2 and the coated white film 1 is bent or punched to form a flange, and the outer edge of the coated white film 1 is pressed tightly against the light guide plate 2. Therefore, through this arrangement, after the operator assembles the light guide plate 2 and the coated white film 1, he punches the mold frame after the assembly to form a flange, which can fully fix the light guide plate 2 and the coated white film 1, increase the firmness of the product, and the coated white film 1 will not easily fall off the light guide plate 2. In addition, the mold frame punching method is simple, which saves assembly time, and after the mold frame is punched to form a flange, the structure is compact and does not occupy additional assembly space.

[0036] Furthermore, the light guide plate structure of the present invention also includes a plurality of pressing plates 3, which are all arranged on the side of the light guide plate 2 away from the coated white film 1, and are arranged close to the end of the light guide plate 2 away from the coated white film 1, and the pressing plate 3 extends to the outer edge of the light guide plate 2, and a flange 31 is fixedly connected to the pressing plate 3, and a threaded hole is provided on the flange 31; a rotating plate 4 is hinged on the pressing plate 3, and a mounting hole is provided on the rotating plate 4, and the mounting hole is parallel to the threaded hole, and the rotating plate 4 is constructed so that when the mounting hole is aligned with the threaded hole, the edge of the coated white film 1 can be pressed against the light guide plate 2; a bolt 5 is provided in the mounting hole, and the bolt 5 passes through the mounting hole and is connected to the threaded hole.

[0037] Specifically, after assembling the coated white film 1 and the light guide plate 2, the operator can place the light guide plate 2 with the coated white film 1 attached on the pressing plate 3, and then press the coated white film 1 by rotating the rotating plate 4, and clamp the coated white film 1 and the light guide plate 2 by the pressing plate 3 and the rotating plate 4. At this time, the mounting hole is aligned with the threaded hole, and then the bolt 5 is inserted into the mounting hole and screwed into the threaded hole, and finally the rotating plate 4 and the pressing plate 3 are fixed, so that the coated white film 1 and the light guide plate 2 are continuously pressed, and the coated white film 1 is prevented from falling off.

[0038] More specifically, when the threaded holes are aligned with the mounting holes, the distance between the rotating plate 4 and the light guide plate 2 is less than the thickness of the coated white film 1. The threaded holes and the mounting holes are arranged along the length direction of the light guide plate 2, and do not occupy space in the thickness direction, making the structure more compact and more conducive to assembly and arrangement.

[0039] In another embodiment of the present invention, a mold frame is provided on the periphery of the light guide plate 2, and a slot is provided on the pressing plate 3, and the mold frame is detachably engaged in the slot. With this arrangement, the mold frame can be buckled in the slot, and the pressing plate 3, the light guide plate 2 and the coated white film 1 are fixed as a whole, which is convenient for assembly and also convenient for fixing the pressing plate 3, the light guide plate 2 and the coated white film 1 on an external device.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A light guide plate structure, characterized in that: include: Light guide plate (2); A white film (1) is applied and attached to one end surface of the light guide plate (2); A plurality of mesh structures (6) are arranged on one end surface of the coated white film (1) and the light guide plate (2) which are bonded together, and are structured to be recessed into the coated white film (1) to form a concave surface, and the concave surface is a smooth curved surface; The light guide plate structure further comprises a plurality of pressing plates (3), each of the pressing plates (3) being arranged on a side of the light guide plate (2) away from the coated white film (1), the pressing plates (3) being arranged in close proximity to an end of the light guide plate (2) away from the coated white film (1), the pressing plates (3) extending to the outer edge of the light guide plate (2), the pressing plates (3) being fixedly connected to a flange (31), the flange (31) being provided with a threaded hole; The pressing plate (3) is hingedly connected to a rotating plate (4), the rotating plate (4) being provided with a mounting hole, the mounting hole being parallel to the threaded hole, the rotating plate (4) being configured so that when the mounting hole is aligned with the threaded hole, the edge of the coated white film (1) can be pressed against the light guide plate (2); a bolt (5) is provided in the mounting hole, the bolt (5) passing through the mounting hole and connected to the threaded hole; When the threaded hole is aligned with the mounting hole, the distance between the rotating plate (4) and the light guide plate (2) is smaller than the thickness of the coated white film (1); The concave surface of the mesh point structure (6) is hemispherical.

2. The light guide plate structure according to claim 1, characterized in that: The coating white film (1) is made of PET.

3. The light guide plate structure according to claim 1, characterized in that: The threaded holes and the mounting holes are both arranged along the length direction of the light guide plate (2).

4. The light guide plate structure according to claim 1, characterized in that: A mold frame is provided on the periphery of the light guide plate (2), a slot is provided on the pressing plate (3), and the mold frame is detachably engaged in the slot.

5. The light guide plate structure according to claim 1, characterized in that: It also comprises a mould frame, the mould frame being sleeved on the outside of the light guide plate (2), the mould frame being punched to form a flange, the flange pressing the edge portion of the coated white film (1) onto the light guide plate (2).

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