阅读说明：本技术 一种导光板的网点结构、撞针结构以及撞点工艺 (Dot structure, striker structure and dot hitting process of light guide plate ) 是由 黄爱群 张佳奕 阮绪红 于 2021-09-30 设计创作，主要内容包括：本申请公开一种导光板的网点结构、撞针结构以及撞点工艺,其技术方案要点在于：安装于导光板本体的网点面上,网点结构包括第一受光面、第二受光面以及若干第一连接面,第一受光面与第二受光面相互连接,第一受光面背离第二受光面的一侧与导光板本体的网点面连接,第二受光面的一侧与导光板本体的网点面连接；第一受光面与第二受光面的另外两侧边分别通过第一连接面与网点面连接,第一受光面与网点面的夹角为锐角,且第一受光面与第二受光面之间夹角角度范围为60°-170°。本申请可使更多的光线能通过网点结构漫反射后折射出光,对直接射向出光侧处的光线起到指向性引导,减少出光侧的漏光,由此提高导光板的光能利用率和出光亮度。(The application discloses dot structure, firing pin structure and the point of hitting technology of light guide plate, its technical scheme main points lie in: the screen point structure comprises a first light receiving surface, a second light receiving surface and a plurality of first connecting surfaces, wherein the first light receiving surface is connected with the second light receiving surface, one side of the first light receiving surface, which is far away from the second light receiving surface, is connected with the screen point surface of the light guide plate body, and one side of the second light receiving surface is connected with the screen point surface of the light guide plate body; the other two sides of the first light receiving surface and the second light receiving surface are respectively connected with the screen dot surface through a first connecting surface, the included angle between the first light receiving surface and the screen dot surface is an acute angle, and the included angle between the first light receiving surface and the second light receiving surface ranges from 60 degrees to 170 degrees. This application can make more light can pass through refraction light-emitting behind the dot structure diffuse reflection, plays directive property guide to the light of direct to light-emitting side department, reduces the light leak of light-emitting side, improves the light energy utilization ratio and the light-emitting luminance of light guide plate from this.)

1. A dot structure of a light guide plate is characterized in that: the light guide plate structure is used for being mounted on a dot surface (102) of a light guide plate body (1), the dot structure (2) comprises a first light receiving surface (3), a second light receiving surface (4) and a plurality of first connecting surfaces (5), the first light receiving surface (3) and the second light receiving surface (4) are connected with each other, one side, away from the second light receiving surface (4), of the first light receiving surface (3) is connected with the dot surface (102) of the light guide plate body (1), and one side, away from the first light receiving surface (3), of the second light receiving surface (4) is connected with the dot surface (102) of the light guide plate body (1); the other two sides of the first light receiving surface (3) and the second light receiving surface (4) are respectively connected with the mesh point surface (102) through the first connecting surface (5), the included angle between the first light receiving surface (3) and the mesh point surface (102) is an acute angle, and the included angle between the first light receiving surface (3) and the second light receiving surface (4) is in the range of 60-170 degrees.

2. A dot structure of a light guide plate according to claim 1, wherein: the first light receiving surface (3) comprises a first light receiving surface (31) and a second light receiving surface (32) which are connected with each other, the second light receiving surface (4) comprises a third light receiving surface (41) and a fourth light receiving surface (42) which are connected with each other, the side edge of the first light receiving surface (31) is connected with the side edge of the third light receiving surface (41) to form an included angle, the first light receiving surface (31) forms an included angle with the third light receiving surface (41), and the side edge of the second light receiving surface (32) is connected with the side edge of the fourth light receiving surface (42) to form an included angle; the first photon receiving surface (31), the second photon receiving surface (32), the third photon receiving surface (41) and the fourth photon receiving surface (42) are respectively connected with the mesh point surface (102) through a first connection surface (5).

3. A dot structure of a light guide plate according to claim 2, wherein: the first light receiving surface (31) is provided with a first side edge (311), the second light receiving surface (32) is provided with a second side edge (321), the third light receiving surface (41) is provided with a third side edge (411), the fourth light receiving surface (42) is provided with a fourth side edge (421), the first side edge (311), the second side edge (321), the third side edge (411) and the fourth side edge (421) are combined to form a third light receiving surface (6), and the orthographic projection of the third light receiving surface (6) on the mesh point surface (102) is square.

4. A dot structure of a light guide plate according to claim 3, wherein: the first connection surface (5), the first light receiving surface (3), the second light receiving surface (4), and the third light receiving surface (6) are all planar.

5. A dot structure of a light guide plate according to claim 3, wherein: the first connection surface (5), the first light receiving surface (3) and the second light receiving surface (4) are all curved surfaces, and the first light receiving surface (3) and the second light receiving surface (4) are connected to form a curved surface protruding towards the light emitting surface (101) of the light guide plate body (1).

6. A dot structure of a light guide plate according to claim 3, wherein: the first connection surface (5) is a curved surface, the first light receiving surface (3) and the second light receiving surface (4) are both planar, the connection part of the first light receiving surface (3) and the second light receiving surface (4) protrudes towards the light emitting surface (101) of the light guide plate body (1) to form an included angle, and the included angle is 60-170 degrees.

7. A striker structure for processing a dot structure of a light guide plate according to any one of claims 1 to 6, characterized in that: the needle bar (7) is detachably mounted on a point hitting machine, the point hitting head (8) comprises a connecting portion (10) and a protruding portion (9), one end of the connecting portion (10) is fixedly connected with one end of the needle bar (7), the protruding portion (9) comprises a first face (91), a second face (92) and a plurality of second connecting faces (93), the first face (91) and the second face (92) are connected with each other, the side edge of the first face (91) departing from the second face (92) is connected with the side edge of the side face of the connecting portion (10) to form an included angle, and the side edge of the second face (92) far away from the first face (91) is connected with the side edge of the other side face of the connecting portion (10) to form an included angle; the other two sides of the first surface (91) and the second surface (92) are respectively connected with the connecting part (10) through the second connecting surface (93).

8. The firing pin structure of claim 7, wherein: the first surface (91) comprises a first sub-surface (911) and a second sub-surface (912) which are connected with each other, the second surface (92) comprises a third sub-surface (921) and a fourth sub-surface (922) which are connected with each other, the third sub-surface (921) and the fourth sub-surface (922) form an included angle, the side edge of the first sub-surface (911) is connected with the side edge of the third sub-surface (921) to form the included angle, and the side edge of the second sub-surface (912) is connected with the side edge of the fourth sub-surface (922 to form the included angle; the first sub-surface (911), the second sub-surface (912), the third sub-surface (921) and the fourth sub-surface (922) are connected to the mesh surface (102) by a second connection surface (93), respectively.

9. The firing pin structure of claim 8, wherein: the second connecting surface (93), the first surface (91) and the second surface (92) are curved surfaces, and the first surface (91) and the second surface (92) are connected to form a curved surface protruding towards the connecting portion (10).

10. A dot impact process for processing the dot structure of the light guide plate of any one of claims 1 to 6, wherein: the method comprises the following steps:

forming a plurality of convex net points on the metal mold core by mechanical impact by adopting the firing pin structure of any one of claims 7 to 9 to obtain the metal mold core with the convex net points;

the convex dots on the metal mold core are transferred to the dot surface (102) of the light guide plate body (1) through injection molding or hot press molding by adopting the metal mold core, so that the light guide plate with the dot structure (2) is manufactured.

Technical Field

The application relates to the technical field of light guide structures, in particular to a mesh point structure, a striker structure and a striker process of a light guide plate.

Background

The light guide plate is generally applied to a liquid crystal display, and referring to fig. 1, the light guide plate includes a light guide plate body 1. The light guide plate body 1 is provided with an incident light side, an emergent light side, a dot surface 102 and an emergent light surface 101, one side of the light guide plate body 1 close to the light source 11 is the incident light side, one side of the light guide plate body 1 close to the light source 11 is the emergent light side, the emergent light surface 101 of the light guide plate body 1 is positioned between the incident light side and the emergent light side, and the dot surface 102 is positioned on the opposite surface of the emergent light surface 101. Light emitted from the light source 11 enters the light guide plate body 1 from the light incident side of the light guide plate body 1, and is reflected and diffused to exit from the light exiting surface 101 of the light guide plate body 1, so as to form a surface light source 11 for the display panel.

At present, generally, the dot structures 2 are disposed in a protruding manner on the dot surface 102 of the light guide plate body 1, and the dot structures 2 serve to change the propagation direction of light. The orthographic projection of the dot structure 2 of the light guide plate is generally circular, and the dot structure 2 is mainly prepared and molded by a hot pressing, laser or injection process.

In view of the above-mentioned technology, the inventors believe that when light is diffusely reflected by the dot structure 2, the light-emitting brightness of the light guide plate is low because the light-receiving surface area is small and the diffuse reflection scattering light is seriously lost.

Disclosure of Invention

In order to improve the light-emitting brightness of the light guide plate, the present application provides a dot structure of the light guide plate.

The application provides a dot structure of light guide plate adopts following technical scheme:

a dot structure of a light guide plate is used for being installed on a dot surface of a light guide plate body, and comprises a first light receiving surface, a second light receiving surface and a plurality of first connecting surfaces, wherein the first light receiving surface is connected with the second light receiving surface, one side, away from the second light receiving surface, of the first light receiving surface is connected with the dot surface of the light guide plate body, and one side, away from the first light receiving surface, of the second light receiving surface is connected with the dot surface of the light guide plate body; the other two sides of the first light receiving surface and the second light receiving surface are respectively connected with the screen dot surface through the first connecting surface, the included angle between the first light receiving surface and the screen dot surface is an acute angle, and the included angle between the first light receiving surface and the second light receiving surface ranges from 60 degrees to 170 degrees.

By adopting the technical scheme, the mesh point structure is arranged on the mesh point surface of the light guide plate and is used for reflecting incident light to the light-emitting surface, the first light-receiving surface and the second light-receiving surface in the mesh point structure are connected with each other, and the included angle between the first light-receiving surface and the mesh point surface is an acute angle, so that more light can be emitted to the first light-receiving surface, and the diffusion range of the light is favorably enlarged; on the basis that the included angle between the first light receiving surface and the mesh surface is an acute angle, the included angle between the first light receiving surface and the second light receiving surface is in the range of 60-170 degrees, so that the second light receiving surface can play a role in directional guiding on light directly emitted to the light emitting side, more light can be reflected to the light emitting surface, and the light emitting brightness of the light guide plate is improved; the other two sides of the first light receiving surface and the second light receiving surface are respectively connected with the mesh point surface through the first connecting surface, the first connecting surface is favorable for collecting incident light, so that more light can be emitted to the first light receiving surface and the second light receiving surface, the light receiving area of the mesh point structure is increased by matching the first light receiving surface and the second light receiving surface, and the light emitting brightness of the light guide plate is further improved.

Preferably, the first light receiving surface comprises a first light receiving surface and a second light receiving surface which are connected with each other, the second light receiving surface comprises a third light receiving surface and a fourth light receiving surface which are connected with each other, the side edge of the first light receiving surface is connected with the side edge of the third light receiving surface to form an included angle, and the side edge of the second light receiving surface is connected with the side edge of the fourth light receiving surface to form an included angle; the first photon receiving surface, the second photon receiving surface, the third photon receiving surface and the fourth photon receiving surface are respectively connected with the mesh point surface through a first connecting surface to form an included angle.

By adopting the above scheme, the first photon receiving surface and the second photon receiving surface are connected to form an included angle, the third photon receiving surface and the fourth photon receiving surface are connected to form an included angle, so that the first photon receiving surface, the second photon receiving surface, the third photon receiving surface and the fourth photon receiving surface are combined to form a structure with folded light, the possibility that the incident light directly penetrates out from the light-emitting side of the light guide plate is reduced, and more light can be reflected to the light-emitting surface of the light guide plate.

Preferably, the first light receiving surface is provided with a first side edge, the second light receiving surface is provided with a second side edge, the third light receiving surface is provided with a third side edge, the fourth light receiving surface is provided with a fourth side edge, the first side edge, the second side edge, the third side edge and the fourth side edge are combined to form a third light receiving surface, and the orthogonal projection of the third light receiving surface on the mesh point surface is square.

By adopting the above scheme, the arrangement of the third light receiving surface is beneficial to increasing the light receiving area of the dot structure, so that more incident light can be reflected to the light emitting surface of the light guide plate after being emitted to the third light receiving surface, thereby being beneficial to improving the brightness of the light emitting surface of the light guide plate.

Preferably, the first connection surface, the first light receiving surface, the second light receiving surface, and the third light receiving surface are all flat surfaces.

By adopting the above scheme, the first connection surface, the first light receiving surface, the second light receiving surface and the third light receiving surface are arranged in a plane, so that on one hand, the directional guiding effect on the incident light emitted towards the light emitting side is favorably realized, on the other hand, the range of the light reflected by the light emitting surface of the light guide plate is favorably expanded, and the incident light can be more uniformly distributed on the light emitting surface of the light guide plate.

Preferably, the first connection surface, the first light receiving surface, and the second light receiving surface are curved surfaces, and the first light receiving surface and the second light receiving surface are connected to form a curved surface protruding toward the light emitting surface.

By adopting the above scheme, the first connection surface, the first light receiving surface and the second light receiving surface are all curved surfaces, so that under the condition of ensuring that the incident light emitted towards the light emitting side is directionally guided, on one hand, the incident light received by the first light receiving surface and the second light receiving surface can be reflected to the light emitting surface of the light guide plate more, and on the other hand, the first light receiving surface and the second light receiving surface are connected to form a curved surface protruding towards the light emitting surface, so that the incident light can be emitted to the light emitting surface of the light guide plate from different directions after being reflected by the curved surface, and the light on the light emitting surface of the light guide plate can be softer.

Preferably, the first connection surface is a curved surface, the first light receiving surface and the second light receiving surface are both flat surfaces, and a joint of the first light receiving surface and the second light receiving surface protrudes toward the light emitting surface to form an included angle, and the included angle is in an angle range of 60 degrees to 170 degrees.

By adopting the scheme, the first connecting surface is a curved surface, so that the directional guiding effect on the incident light emitted towards the light emitting side is realized, and the utilization rate of the incident light is improved; based on the condition that the first connection surface is a curved surface, the first light receiving surface and the second light receiving surface are both flat surfaces, and the joint of the first light receiving surface and the second light receiving surface protrudes towards the direction of the light emitting surface and forms an included angle with an angle range of 60-170 degrees, so that more incident light can be received, and meanwhile, the second light receiving surface can diffuse more light rays to the light emitting surface of the light guide plate, so that the incident light can be more uniformly distributed on the light emitting surface of the light guide plate.

Preferably, the light-emitting surface of the light guide plate body is provided with a plurality of cutting grooves.

By adopting the scheme, the light-emitting surface of the light guide plate body is provided with the plurality of grooves, so that the area of the light-emitting surface of the light guide plate is increased, and the light-emitting of the light-emitting surface of the light guide plate is more uniform.

In a second aspect, in order to process the light guide plate in the above scheme, the present application provides a striker structure for processing the light guide plate.

The application provides a striker structure for processing dot structure of light guide plate adopts following technical scheme:

a firing pin structure for processing a mesh point structure of a light guide plate comprises a needle bar and a firing pin head, wherein the needle bar is detachably mounted on a firing pin machine, the firing pin head comprises a connecting part and a protruding part, one end of the connecting part is fixedly connected with one end of the needle bar, the protruding part comprises a first surface, a second surface and a plurality of second connecting surfaces, the first surface and the second surface are connected with each other, the side edge of the first surface, which is far away from the second surface, is connected with the side edge of the side surface of the connecting part, and the side edge of the second surface, which is far away from the first surface, is connected with the side edge of the other side surface of the connecting part; the other two side edges of the first surface and the second surface are respectively connected with the connecting part through the second connecting surface, the included angle between the first surface and the side surface of the connecting part is an acute angle, and the included angle between the first surface and the second surface ranges from 60 degrees to 170 degrees.

By adopting the scheme, the needle rod is detachably arranged on the striking point machine, so that a worker can conveniently replace the striking pin; the connecting part is fixedly connected with the needle bar, and the bulge part is fixedly connected with the needle bar through the connecting part, so that the collision point head of the firing pin can be more effectively used for processing the light guide plate; and the bulge is formed by connecting the first surface, the second surface and a plurality of second connecting surfaces, so that the shape of the bulge is matched with the shape of a mesh point structure which needs to be processed and formed on the light guide plate, and the one-step forming of the mesh point structure on the light guide plate is facilitated.

Preferably, the first surface comprises a first sub-surface and a second sub-surface which are connected with each other, the second surface comprises a third sub-surface and a fourth sub-surface which are connected with each other, a side edge of the first sub-surface is connected with a side edge of the third sub-surface to form an included angle, and a side edge of the second sub-surface is connected with a side edge of the fourth sub-surface to form an included angle; the first sub-surface, the second sub-surface, the third sub-surface and the fourth sub-surface are respectively connected with the mesh point surface through second connection surfaces.

By adopting the scheme, the first sub-surface is connected with the second sub-surface to form an included angle, and the third sub-surface is connected with the fourth sub-surface to form a mesh point structure, so that the first sub-surface, the second sub-surface, the third sub-surface and the fourth sub-surface are combined to form the mesh point structure, and the mesh point structure at the position of the light guide plate can be processed more accurately by improving the striker structure.

Preferably, the second connection surface, the first surface and the second surface are curved surfaces, and the first surface and the second surface are connected to form a curved surface protruding towards the direction of the connection portion.

By adopting the above scheme, the second connection surface is a curved surface, so that the mesh point structure corresponding to the second connection surface can be processed in a matched manner, the secondary polishing and grinding process of the mesh point structure can be saved, and the processing efficiency of the mesh point structure of the light guide plate can be improved.

In order to process the light guide plate in the above scheme, the application provides a dot bumping process for processing a dot structure of the light guide plate.

The application provides a hit some technologies for processing the dot structure of light guide plate, adopts following technical scheme:

a dot hitting process for processing the dot structure of the light guide plate in any one of the above schemes comprises the following steps:

adopting the striker structure in any one of the schemes to form a plurality of convex mesh points on the metal mold core through mechanical impact so as to obtain the metal mold core with the convex mesh points;

the convex dots on the metal mold core are transferred to the dot surfaces of the light guide plate by injection molding or hot press molding of the metal mold core, so that the light guide plate with the dot structure is manufactured.

By adopting the scheme, the metal mold core is manufactured by adopting the striker structure in the scheme, so that the metal mold core is provided with convex mesh points, and then the convex mesh points are transcribed on the light guide plate by adopting the metal mold core, so that a plurality of mesh point structures are formed on the mesh point surface of the light guide plate, and the light guide plate with the mesh point structures is processed and formed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first light receiving surface and the second light receiving surface in the mesh point structure are connected with each other, and the included angle between the first light receiving surface and the mesh point surface is an acute angle, so that more light can be emitted onto the first light receiving surface, and the diffusion range of the light is favorably enlarged; on the basis of the fact that the included angle between the first light receiving surface and the mesh point surface is an acute angle, the included angle between the first light receiving surface and the second light receiving surface is set to be 60-170 degrees, on one hand, the second light receiving surface can play a role in directional guiding on light rays directly emitted to the light emitting side, and more light rays can be reflected to the light emitting surface, so that brightness is improved, on the other hand, the second light receiving surface enables the light rays to be reflected to the position, close to the light emitting side, of the light emitting surface, and reflected light rays can be uniformly distributed on the light emitting surface; the other two sides of the first light receiving surface and the second light receiving surface are respectively connected with the mesh point surface through the first connecting surface, the first connecting surface is favorable for collecting incident light, so that more light can be emitted to the first light receiving surface and the second light receiving surface, the light receiving area of the mesh point structure is increased by matching the first light receiving surface and the second light receiving surface, and the light emitting brightness of the light guide plate is further improved.

2. The first connection surface, the first light receiving surface, the second light receiving surface and the third light receiving surface are arranged in a plane, so that on one hand, the directional guiding effect on incident light emitted towards the light emitting side is favorably realized, on the other hand, the range of the light reflected by the light falling on the light emitting surface of the light guide plate is favorably expanded, and the incident light can be more uniformly distributed on the light emitting surface of the light guide plate.

3. The angle range of the included angle formed by the connection of the first photon receiving surface and the second photon receiving surface is 60-170 degrees, the angle range of the included angle formed by the connection of the third photon receiving surface and the fourth photon receiving surface is 60-170 degrees, so that the first photon receiving surface, the second photon receiving surface, the third photon receiving surface and the fourth photon receiving surface are combined to form a structure with folded light, the incident light is further folded, the possibility that the incident light directly penetrates out from the light-emitting side of the light guide plate is reduced, more light can be reflected to the light-emitting surface of the light guide plate, the light loss is reduced, the light energy utilization rate is improved, and the light-emitting brightness of the light guide plate is improved.

Drawings

Fig. 1 is a schematic structural diagram of a light guide plate having a dot structure in the related art.

Fig. 2 is a schematic structural diagram of a light guide plate in embodiment 1 of the present application.

Fig. 3 is an orthographic view of the light guide plate in embodiment 1 of the present application.

Fig. 4 is a schematic diagram of an optical path of a light guide plate in embodiment 1 of the present application.

Fig. 5 is a schematic structural diagram of a light guide plate in an embodiment of example 2 of the present application.

Fig. 6 is an orthographic view of a light guide plate in an embodiment of example 2 of the present application.

Fig. 7 is a schematic diagram of the optical path of the light guide plate when the dot structure is schematically shown in embodiment 2 of the present application.

Fig. 8 is a schematic structural diagram of a light guide plate in another embodiment of example 2 of the present application.

Fig. 9 is an orthographic view of a light guide plate according to another embodiment of example 2 of the present application.

Fig. 10 is a schematic diagram of an optical path of a light guide plate in another embodiment of example 2 of the present application, in which a dot structure is schematically shown.

Fig. 11 is an orthographic view of a light guide plate in another embodiment of example 2 of the present application.

Fig. 12 is a schematic diagram of an optical path of a light guide plate in another embodiment of example 2 of the present application.

Fig. 13 is a structural view of a light guide plate in an embodiment of example 3 of the present application.

Fig. 14 is an orthographic view of a light guide plate in an embodiment of example 3 of the present application.

Fig. 15 is a schematic diagram of an optical path of a light guide plate in an embodiment of example 3 of the present application.

Fig. 16 is a schematic structural diagram of a mesh point structure in another embodiment of example 3 of the present application.

Fig. 17 is an orthographic view of a light guide plate in another embodiment of example 3 of the present application.

Fig. 18 is a schematic diagram of an optical path of a light guide plate in another embodiment of example 3 of the present application.

Fig. 19 is a schematic view of the structure of a striker in the embodiment of the present application.

Fig. 20 is a bottom view of the striker in the embodiment of the present application.

Fig. 21 is a schematic view of a striker according to an embodiment of the present application.

FIG. 22 is a schematic view of a striker head in accordance with an embodiment of the present application.

Figure 23 is a bottom view of a striker head in an embodiment of the present application.

Figure 24 is a bottom view of a striker head in another embodiment of the present application.

Fig. 25 is a structural sectional view of a head of a striking point according to an embodiment of the present application.

Figure 26 is a cross-sectional view of a striker head in another embodiment of the present application.

Description of reference numerals:

1. a light guide plate body; 101. a light-emitting surface; 1011. grooving; 102. a mesh point surface; 2. a dot structure; 3. a first light receiving surface; 31. a first photon-receiving surface; 311. a first side edge; 32. a second photon-receiving surface; 321. a second side edge; 4. a second light-receiving surface; 41. a third photon-receiving surface; 411. a third side; 42. a fourth photon-receiving surface; 421. a fourth side; 5. a first connection face; 6. a third light-receiving surface; 7. a needle bar; 8. hitting a point head; 9. a boss portion; 91. a first side; 911. a first sub-surface; 9111. a first side; 912. a second sub-surface; 9121. a second edge; 92. a second face; 921. a third sub-surface; 9211. a third side; 922. a fourth sub-surface; 9221. a fourth side; 93. a second connection face; 94. a third surface; 10. a connecting portion; 11. a light source.

Detailed Description

The present application is described in further detail below with reference to figures 1-26.

Fig. 1 shows a light guide plate structure with a dot structure in the related art, and the light guide plate includes a light guide plate body 1. When the light guide plate is used, generally, the light source 11 is disposed on one side of the light guide plate body 1, one side of the light guide plate body 1 close to the light source 11 is a light incident side, one side of the light guide plate body 1 close to the light source 11 is a light emitting side, the light emitting surface 101 of the light guide plate body 1 is located between the light incident side and the light emitting side, and the dot surface 102 is located on the opposite side of the light emitting surface 101, the dot surface 102 of the light guide plate body 1 is provided with a plurality of dot structures 2, the dot structures 2 are substantially hemispherical, so that light is mainly concentrated on one side of the light emitting surface 101 of the light guide plate body 1 close to the light incident side, and the brightness of one side of the light emitting surface 101 of the light guide plate body 1 close to the light emitting side is small, so that the light is difficult to be uniformly distributed on the light emitting surface 101 of the light guide plate body 1, and at the same time, the light receiving surface of the hemispherical dot structure 2 is small, so that most of the light source 11 is emitted from the light emitting side of the light guide plate, this results in a large loss of light from the light guide plate, resulting in a low luminance of light emitted from the light guide plate.

Based on the above-mentioned condition of the correlation technique, in order to reduce the light loss of light guide plate for light can evenly distributed in the play plain noodles 101 of light guide plate, and improve the light-emitting luminance of light guide plate, this application discloses a dot structure of light guide plate. Referring to fig. 2, the light guide plate body 1 is made of PMMA material, and may be made of PC material or PS material. The dot surface 102 of the light guide plate body 1 is provided with a plurality of dot structures 2, the dot structures 2 are randomly arranged on the dot surface 102 of the light guide plate, and the dot structures 2 are special-shaped structures.

Example 1:

referring to fig. 2 and 3, the dot structure 2 of the light guide plate includes a first light receiving surface 3, a second light receiving surface 4 and a plurality of first connecting surfaces 5. The first light receiving surface 3, the second light receiving surface 4, and the first connection surface 5 are all flat surfaces, and the first light receiving surface 3 and the second light receiving surface 4 are all rectangular. One side of the first light receiving surface 3 and one side of the second light receiving surface 4 are connected with each other to form an included angle, the side of the first light receiving surface 3 away from the second light receiving surface 4 is connected with the dot surface 102 of the light guide plate to form an included angle, and the side of the second light receiving surface 4 away from the first light receiving surface 3 is connected with the dot surface 102 of the light guide plate body 1 to form an included angle. The other two sides of the first light receiving surface 3 and the second light receiving surface 4 are connected to the halftone dot surface 102 through first connection surfaces 5. In one embodiment, the areas of the first light receiving surface 3 and the second light receiving surface 4 are equal, and in other embodiments, the area of the second light receiving surface 4 may be larger than the area of the first light receiving surface 3, so that the second light receiving surface 4 can receive more incident light and reflect more incident light to the light emitting surface 101 of the light guide plate body 1, thereby improving the light emitting brightness of the light guide plate.

Referring to fig. 4, one side of the first light receiving surface 3 is disposed obliquely from the halftone dot surface 102 in a direction toward the second light receiving surface 4. In order to further improve the light-emitting brightness of the light guide plate, the first light-receiving surface 3 and the mesh surface 102 form an acute angle. For convenience of understanding, the included angle a1, which is set to a1 between the first light receiving surface 3 and the mesh surface 102, may further preferably range from 10 ° to 60 °, and this arrangement is advantageous for increasing the diffusion range of the reflected light. The angle between the first light receiving surface 3 and the second light receiving surface 4 is set to b1, and the angle b1 ranges from 60 ° to 170 °. The angle a2, which is the angle between the second light-receiving surface 4 and the halftone dot surface 102, is set to a2, and may further preferably range from 10 ° to 60 °. In the embodiment, the included angle a1 is preferably 30 °, and the included angle b1 is preferably 140 °, so that on one hand, the second light receiving surface 4 can perform a directional guiding function on the light directly emitted to the light emitting side, which is beneficial to reflecting more light to the light emitting surface 101, and thus is beneficial to improving brightness, and on the other hand, the second light receiving surface 4 can reflect the incident light to a position of the light emitting surface 101 close to the light emitting side, which is beneficial to uniformly distributing the reflected light on the light emitting surface 101.

In one embodiment, as shown in fig. 4, for convenience of understanding, a dividing line L1 is provided at the junction of the halftone dot surface 102 and the first light receiving surface 3, the dividing line L1 divides the included angle a1 into two sub-angles, and when the angles of the two sub-angles are equal, the included angle a1 is a symmetrical included angle; when the angles of the two sub-angles are not equal, the included angle a1 is an asymmetric included angle, and the included angle a2 can be a symmetric included angle or an asymmetric included angle.

In one embodiment, as shown in fig. 4, for convenience of understanding, a dividing line L2 is provided at the connection between the second light receiving surface 4 and the first light receiving surface 3, and the dividing line L2 divides the included angle b1 into two sub-angles, so that the included angle b1 is symmetrical when the angles of the two sub-angles are equal; when the angles of the two sub-angles are not equal, the included angle b1 is an asymmetric included angle.

In one embodiment, the light emitting surface 101 of the light guide plate body 1 is formed with a plurality of grooves 1011, the grooves 1011 are V-shaped grooves 1011, and light reflected by the dot structure 2 is reflected to the V-shaped grooves 1011 on the light emitting surface 101, where the V-shaped grooves 1011 change the transmission direction of the reflected light, so that the light emitted from the light guide plate is more uniform.

In another embodiment, the grooves 1011 on the light-emitting surface 101 of the light guide plate are semi-arc grooves 1011, and the light reflected by the dot structures 2 is reflected to the groove walls of the semi-arc grooves 1011 on the light-emitting surface 101, so that the reflected light is emitted along the arc direction of the semi-arc grooves, and the light emitted by the light guide plate is softer.

Example 2:

this example differs from example 1 in that: referring to fig. 5 and 6, the first light receiving surface 3 includes a first light receiving surface 31 and a second light receiving surface 32 connected to each other, and the first light receiving surface 31 and the second light receiving surface 32 are disposed to increase the range of reflection angles of light. The second light receiving surface 4 includes a third light receiving surface 41 and a fourth light receiving surface 42 connected to each other, on one hand, the light emitted from the light emitting side of the light guide plate is directionally guided from multiple angles to reduce the direct emission of the light from the light emitting side of the light guide plate, so as to reduce the light loss of the light guide plate, and on the other hand, the incident light can be reflected to the light emitting surface 101 of the light guide plate more uniformly. The side of the first light-receiving surface 31 is connected with the side of the third light-receiving surface 41, and the side of the second light-receiving surface 32 is connected with the side of the fourth light-receiving surface 42. The side edge of the first photon receiving surface 31, the side edge of the second photon receiving surface 32, the side edge of the third photon receiving surface 41 and the side edge of the fourth photon receiving surface 42 are respectively connected with the dot surface 102 through the first connecting surface 5.

The included angle between the first photon receiving surface 31 and the second photon receiving surface 32 ranges from 60 degrees to 170 degrees, and the included angle between the first photon receiving surface 31 and the second photon receiving surface 32 is preferably 140 degrees; the included angle between the third light receiving surface 41 and the fourth light receiving surface 42 is 60-170 degrees, the included angle between the third light receiving surface 41 and the fourth light receiving surface 42 is preferably 140 degrees, the included angle between the first light receiving surface 31 and the third light receiving surface 41 is preferably 140 degrees, and the included angle between the second light receiving surface 32 and the fourth light receiving surface 42 is preferably 140 degrees.

As shown in fig. 6 and 7, fig. 7 is a light path diagram of the dot structure 2 when the dot structure is subjected to the brief display processing, the first light receiving surface 31 is connected with the second light receiving surface 32 to form an included angle of 60 ° to 170 °, and the third light receiving surface 41 is connected with the fourth light receiving surface 42 to form an included angle of 60 ° to 170 °, so that the first light receiving surface 31, the second light receiving surface 32, the third light receiving surface 41 and the fourth light receiving surface 42 are combined to form a structure with collected light, which is beneficial to further collecting incident light to reduce the possibility that the incident light directly passes through the light-emitting side of the light guide plate.

Referring to fig. 8 and 9, in order to further increase the light receiving area of the dot structure 2, the first light receiving surface 31 is provided with a first side 311, the second light receiving surface 32 is provided with a second side 321, the third light receiving surface 41 is provided with a third side 411, the fourth light receiving surface 42 is provided with a fourth side 421, the first side 311, the second side 321, the third side 411 and the fourth side 421 are combined to form a third light receiving surface 6, and the shape of the orthogonal projection of the third light receiving surface 6 on the dot surface 102 is a square. The third light receiving surface 6 is a plane.

Fig. 10 (the dot structure 2 is processed for short) shows the light path of the dot structure 2 when the third light receiving surface 6 is included, and the third light receiving surface 6 and the second light receiving surface 4 cooperate to reflect more incident light, which is beneficial to further improving the brightness of the light output from the light guide plate.

In another embodiment, referring to fig. 11 and 12, the first light receiving surface 31, the second light receiving surface 32, the third light receiving surface 41, and the fourth light receiving surface 42 may also be triangular, so that the light emitting brightness of the light guide plate can be further improved.

Example 3:

this example differs from example 1 in that: referring to fig. 13 and 14, the first connection surface 5, the first light receiving surface 3 and the second light receiving surface 4 are curved surfaces, so that the incident light received by the first light receiving surface 3 and the second light receiving surface 4 is favorably guided under the condition that the incident light emitted toward the light emitting side is guided in a directivity, and therefore, more light can be reflected to the light emitting surface 101 of the light guide plate.

Fig. 15 shows an optical path diagram of the dot structure 2 in this embodiment, the first light receiving surface 3 and the second light receiving surface 4 are connected to form a curved surface protruding toward the light emitting surface 101, and the first light receiving surface 3 and the second light receiving surface 4 are matched to protrude toward the light emitting surface 101, so that more incident light is uniformly reflected onto the light emitting surface 101 of the light guide plate, the light is effectively utilized within the effective viewing area, and the incident light can be reflected by the curved surface and then emitted onto the light emitting surface 101 of the light guide plate from different directions, so that the light on the light emitting surface 101 of the light guide plate is softer.

In another embodiment, referring to fig. 16 and 17, both the first light receiving surface 3 and the second light receiving surface 4 are provided as a plane based on the configuration in which the first connection surface 5 is provided as a curved surface. Referring to fig. 18, the connection portion of the first light receiving surface 3 and the second light receiving surface 4 protrudes toward the light emitting surface 101 to form an included angle c1, in this embodiment, the included angle c1 is 60 ° to 170 °, the included angle c1 is optionally 60 °, 70 °, 80 °, 90 °, 100 °, 110 °, 120 °, 130 °, 135 °, 140 °, 145 °, 150 °, 155 °, 160 °, or 170 °, and the like, and the change of the size of the included angle c1 can change the position where the light is reflected to the light emitting surface 101 of the light guide plate, so that the included angle c1 is disposed in the above range, which is beneficial to more uniformly reflecting the light to the light emitting surface 101 of the light guide plate.

The joint of the first light receiving surface 3 and the second light receiving surface 4 protrudes toward the light emitting surface 101, so that more incident light can be received, and more incident light can be diffused to the light emitting surface 101 of the light guide plate, thereby improving the light emitting brightness of the light guide plate, and being beneficial to more uniformly distributing light on the light emitting surface 101 of the light guide plate.

The embodiment of the application further discloses a striker structure for processing the dot structure of the light guide plate in the embodiment, which is applied to a dot bumping machine, wherein the dot bumping machine forms a plurality of convex dots on a metal mold core through mechanical impact through the striker structure so as to obtain the metal mold core with the convex dots, so that the dot structure 2 of the light guide plate can be directly processed in the subsequent process. Referring to fig. 19, the firing pin structure comprises a pin rod 7 and a firing point head 8, wherein the pin rod 7 is detachably mounted on the firing point machine so that workers can process mesh point structures 2 with different shapes. The striker head 8 comprises a connecting portion 10 and a boss portion 9. One end of the connecting part 10 is fixedly connected with one end of the needle bar 7, and the other end of the connecting part 10 is used for being connected with the bulge part 9. The maximum thickness range of the dot impact head 8 is 0.2-0.8mm, the maximum thickness of the dot impact head 8 is preferably 0.4mm, and the structural strength of the dot impact head 8 is guaranteed under the condition of effectively manufacturing the mesh point structure 2. The thickness of the boss 9 is in the range of 0.01-0.02mm, and in this embodiment, the thickness of the boss 9 is 0.015 mm. The shape of the part of the convex part 9 for processing the dot structure 2 corresponds to the shape of the dot structure 2 required by the light guide plate.

In one embodiment, referring to fig. 19 and 20, the boss 9 includes a first surface 91, a second surface 92, and a plurality of second connection surfaces 93, and the first surface 91, the second surface 92, and the plurality of second connection surfaces 93 are all planar. One side edge of the first surface 91 is connected to one side edge of the second surface 92, the side edge of the first surface 91 away from the second surface 92 is connected to the side edge of the side surface of the connecting portion 10, and the side edge of the second surface 92 away from the first surface 91 is connected to the side edge of the other side surface of the connecting portion 10; the other two sides of the first surface 91 and the second surface 92 are respectively connected with the connecting portion 10 through the second connecting surface 93, an included angle between the first surface 91 and the side surface of the connecting portion 10 is an acute angle and preferably 30 °, an included angle between the first surface 91 and the second surface 92 ranges from 60 ° to 170 °, and an included angle between the first surface 91 and the second surface 92 is preferably 140 °. The shape of the corresponding mesh point structure 2 can be directly processed by the arrangement, secondary processing steps are saved, and the processing efficiency of the mesh point structure 2 of the light guide plate is favorably improved.

Specifically, the first surface 91 includes a first sub-surface 911 and a second sub-surface 912 which are connected to each other, the second surface 92 includes a third sub-surface 921 and a fourth sub-surface 922 which are connected to each other, a side edge of the first sub-surface 911 is connected to a side edge of the third sub-surface 921, and a side edge of the second sub-surface 912 is connected to a side edge of the fourth sub-surface 922; the first sub-surface 911, the second sub-surface 912, the third sub-surface 921 and the fourth sub-surface 922 are respectively connected to the dot surface 102 through the second connection surface 93.

The angle between the first sub-surface 911 and the second sub-surface 912 is in the range of 60 ° to 170 °, and the angle between the first sub-surface 911 and the second sub-surface 912 is preferably 140 °. The angle between the third sub-surface 921 and the fourth sub-surface 922 is in the range of 60 deg. -170 deg., and the angle between the third sub-surface 921 and the fourth sub-surface 922 is preferably 140 deg.. The angle between the first sub-surface 911 and the third sub-surface 921 is in the range of 60 ° -170 ° and preferably 140 °, and the angle between the second sub-surface 912 and the fourth sub-surface 922 is in the range of 60 ° -170 ° and preferably 140 °.

In another embodiment, referring to fig. 21 and 22, the first sub-surface 911 is provided with a first side 9111, the second sub-surface 912 is provided with a second side 9121, the third sub-surface 921 is provided with a third side 9211, the fourth sub-surface 922 is provided with a fourth side 9221, the first side 9111, the second side 9121, the third side 9211 and the fourth side 9221 combine to form a third surface 94, and the third surface 94 is a plane.

Referring to fig. 23, the shape of the orthogonal projection of the third surface 94 on the connecting portion 10 is a square. The first sub-surface 911, the second sub-surface 912, the third sub-surface 921, the fourth sub-surface 922 and the third surface 94 are matched to form the convex part 9, so that the convex part 9 corresponds to one of the shapes of the mesh point structures 2, and in subsequent point collision processing, the metal mold core can be subjected to point collision molding at one time.

In another embodiment, referring to fig. 24, the first sub-surface 911, the second sub-surface 912, the third sub-surface 921 and the fourth sub-surface 922 may also be triangular, so that the effect of further improving the light emitting brightness of the light guide plate can be achieved.

In another embodiment, referring to fig. 25, the second connection surface 93 is a curved surface, the first surface 91 and the second surface 92 are both planar, and the connection between the first surface 91 and the second surface 92 protrudes toward the connection portion 10 and forms an included angle d1, and the included angle d1 is in the range of 60 ° to 170 °.

In another embodiment, referring to fig. 26, the second connection surface 93, the first surface 91 and the second surface 92 are curved surfaces, and the first surface 91 and the second surface 92 are connected to form a curved surface protruding toward the connection portion 10, so that on one hand, the mesh point structure 2 corresponding to the second connection surface can be processed in a matched manner, on the other hand, the secondary polishing and grinding process for the mesh point structure 2 can be omitted, and the processing efficiency of the mesh point structure 2 of the light guide plate can be improved.

The embodiment of the application further discloses a dot hitting process for processing the dot structure of the light guide plate in any one of the embodiments, the dot structure 2 of the light guide plate is processed by a dot hitting machine or other equipment capable of realizing the dot hitting function, and the dot structures 2 correspond to the protrusions 9 in the dot hitting structure one by one. The point hitting process comprises the following steps:

and S1, forming a plurality of convex net points on the metal mold core by mechanical impact by adopting the firing pin structure in any one of the above embodiments, so as to obtain the metal mold core with the convex net points.

And S2, transferring the convex dots on the metal mold core to the dot surface 102 of the light guide plate body 1 by injection molding or hot press molding by using the metal mold core, and thus obtaining the light guide plate with the dot structure 2.

The metal mold core is manufactured by adopting the striker structure in the embodiment, so that the metal mold core has convex dots, and then the convex dots are transcribed on the light guide plate body 1 by adopting the metal mold core, so that a plurality of dot structures 2 are formed on the dot surface 102 of the light guide plate body 1, and the light guide plate with the dot structures 2 is processed and formed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.