CN109147605B

CN109147605B - Identification structure and electronic device

Info

Publication number: CN109147605B
Application number: CN201811207391.9A
Authority: CN
Inventors: 蔡亲明
Original assignee: TCL Technology Electronics Huizhou Co Ltd
Current assignee: Tonly Electronics Holdings Ltd
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2021-12-03
Anticipated expiration: 2038-10-16
Also published as: CN109147605A

Abstract

The invention discloses an identification structure and an electronic device, wherein the identification structure comprises a box body, an identification hole is formed in the box body, and a light source is also accommodated in the box body; the light guide plate is contained in the box body and exposes the light of the light source in the identification hole, one side face of the light guide plate is opposite to the light source, the light guide plate faces the side face of the light source and is convexly provided with two convex parts and a light-gathering part, the light-gathering part focuses the incident light of the light source on the central shaft of the light guide plate, the light-gathering part faces the surface of the light source and is convexly provided with a plurality of tooth-shaped protrusions, the two convex parts are respectively positioned on two opposite sides of the light-gathering part, the convex parts comprise incident faces and total reflection faces, the incident faces face faces the light-gathering part, and the total reflection faces back to the light-gathering part. The identification structure provided by the invention improves the utilization rate of light energy, improves the light intensity and light emitting uniformity of the light guide plate, improves the user experience and further reduces the cost.

Description

Identification structure and electronic device

Technical Field

The present invention relates to the field of product identification technologies, and in particular, to an identification structure and an electronic device including the identification structure.

Background

LOGO is a necessary part of audio, television and other electronic products, and along with the requirement of users on the product LOGO is higher and higher, a lot of product LOGOs begin to use luminous effect to the outward appearance effect and the visual experience of reinforcing product. The existing identification structure usually adopts a side-in type backlight source structure, the light source of the side-in type light guide plate mostly adopts a lamp tube or a light emitting diode, and the light emitted by the lamp tube or the light emitting diode is incident from the side surface of the light guide plate, so that the brightness of the light guide plate is reduced along with the increase of the transverse distance from the light emitting element, the light use efficiency is not high, the identification structure is easy to cause the problems of bright two sides and dark middle, and the user experience is reduced.

Disclosure of Invention

The invention mainly aims to provide an identification structure, aiming at improving the utilization rate of light energy, improving the light intensity and light emitting uniformity of a light guide plate, improving the user experience and further reducing the cost.

In order to achieve the above object, the present invention provides an identification structure, comprising: the box body is provided with an identification hole, and a light source is accommodated in the box body; and

the light guide plate is accommodated in the box body and exposes the light of the light source in the identification hole, one side face of the light guide plate is opposite to the light source, two protruding parts and a light-gathering part are convexly arranged on the side face, facing the light source, of the light guide plate, the light-gathering part focuses the incident light of the light source on the central shaft of the light guide plate, a plurality of tooth-shaped protrusions are convexly arranged on the surface, facing the light source, of the light-gathering part, the two protruding parts are respectively located on two opposite sides of the light-gathering part, the protruding parts comprise incident faces and total reflection faces, the incident faces face faces the light-gathering part, and the total reflection faces back to the light-gathering part.

Optionally, the tooth-shaped protrusions extend in a thickness direction of the light guide plate, and the tooth-shaped protrusions are arranged in a width direction of the light guide plate.

Optionally, the light guide plate includes a left side surface, a right side surface, a front side surface and a rear side surface, the left side surface is opposite to the light source and is provided with the light condensing portion, the right side surface and the left side surface are located at two opposite sides of the light guide plate, the front side surface and the rear side surface are respectively connected to the right side surface and the left side surface, and the front side surface, the rear side surface and the right side surface are coated with a total reflection coating.

Optionally, the light guide plate is provided with a recessed portion extending from the right side surface to the light source direction, and the recessed portion reflects and converges light rays at a central axis of the light guide plate.

Optionally, the light guide plate includes a light emitting surface and an emitting surface opposite to the light emitting surface, the light emitting surface is disposed facing the identification hole, and the emitting surface of the light guide plate is provided with a plurality of printing dots.

Optionally, the cross-sectional area of the printed dots gradually decreases in a direction away from the central axis of the light guide plate, and the pitch between the printed dots gradually increases in a direction away from the central axis of the light guide plate.

Optionally, the material of the box body further comprises a light diffusion agent.

Optionally, the box body further accommodates a circuit board, the circuit board is located on one side of the light guide plate, which is far away from the identification hole, and the circuit board is coated with a layer of ink layer.

Optionally, the distance between the light source and the light guide plate is L, and L is larger than or equal to 0.2 mm.

The invention also provides an electronic device, which comprises a shell and an identification structure, wherein the identification structure is arranged on the shell; the identification structure includes: the box body is provided with an identification hole, and a light source is accommodated in the box body; the light guide plate is contained in the box body and exposes the light of the light source in the identification hole, one side face of the light guide plate is opposite to the light source, two protruding parts and a light-gathering part are convexly arranged on the side face, facing the light source, of the light guide plate, the light-gathering part focuses the incident light of the light source on the central shaft of the light guide plate, a plurality of tooth-shaped protrusions are convexly arranged on the surface, facing the light source, of the light-gathering part, the two protruding parts are respectively located on two opposite sides of the light-gathering part, the protruding parts comprise incident faces and total reflection faces, the incident faces face faces the light-gathering part, and the total reflection faces back to the light-gathering part.

In this embodiment, the light-condensing portion and the two protruding portions form a total reflection structure, on one hand, when the light beam is emitted to the light-condensing portion, the light beam is condensed at the central axis of the light guide plate by refraction of the light-condensing portion, and then is reflected in the light guide plate for multiple times, so that a part of the light beam can be emitted from the area of the light guide plate away from the light source, on the other hand, when the light beam is emitted to the incident surface, the light beam is partially reflected, the reflected light beam is directed to the light-condensing portion, and can also be emitted to the central axis of the light guide plate through the light-condensing portion, so that the light beam can be emitted from the area of the light guide plate away from the light source, and a part of the light beam is refracted by the incident surface, and the refracted light beam is emitted to the total reflection surface, and the light beam can also be emitted from the area of the light guide plate away from the light source by reflection of the total reflection surface; therefore, in the whole identification structure, because the light is sufficient and the brightness is high, the brightness of the light guide plate can be ensured only by the partial light of the incident surface, and because the light is insufficient and the brightness is low on the side far away from the light source, the light of the light source is directly reflected only by the incident surface, the brightness is not enough, but after the partial light of the side near the light source is refracted by the incident surface, the partial light is reflected by the total reflection surface to be reflected to the side far away from the light source of the light guide plate, and the partial light is converged at the central axis of the light guide plate by the light converging part and then reflected to the side far away from the light source by the total reflection in the light guide plate, the more the light is converged by the light converging part and the incident surface far away from the light source, so that the brightness of the light emitted from the light emitting surface on the side far away from the light source can be ensured to be close to the brightness of the light emitting surface near the light source side, and the luminance is equal, in addition, reflects and refracts light through a plurality of profile of tooth archs, has improved the utilization ratio to the light, can let more even that light disperses moreover for each part luminance is more even when the sign shows, improves visual effect, thereby has guaranteed the degree of consistency of light guide plate light. According to the identification structure, most of light rays emitted by the light source are converged in the central area of the light guide plate through refraction of the light-gathering part, part of light rays are refracted, the emitting surface of the whole light guide plate is intensively formed into a surface light source through refraction of the incident surface and reflection of the total reflection surface, the emitted light brightness is equivalent, the uniformity is ensured, the lighting effect is better, the luminous effect of the identification is better, the visual experience of a user is improved, the light energy utilization rate is improved while the number of the light sources is reduced, the light guide plate has the same brightness, and the manufacturing cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a tag structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at reference A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at reference B;

FIG. 4 is a schematic diagram of the optical path of the light-condensing portion of FIG. 3;

FIG. 5 is a schematic view of a light guide plate structure of the identification structure of the present invention;

FIG. 6 is a schematic view of another view of the logo structure of the present invention;

FIG. 7 is an enlarged fragmentary view of FIG. 6 at reference C;

fig. 8 is a partial enlarged view of fig. 6 at reference D.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Identification structure	531	Tooth-shaped bulge
10	Box body	55	Front side
				11	Identification hole	551	Rear side
30	Light source	553	Right side surface
				50	Light guide plate	553a	Concave part
51	Projecting part	57	Total reflection coating
				511	Incident surface	58	Light emitting surface
513	Total reflection surface	59	Emitting surface
				53	Light-gathering part	70	Circuit board

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides an identification structure 100, as shown in fig. 1 to 8, including: the box body 10 is provided with a mark hole, and the box body 10 is internally provided with a light source 30; and a light guide plate 50, the light guide plate 50 is accommodated in the case 10 and exposes the light of the light source 30 in the identification hole 11, one side surface of the light guide plate 50 is opposite to the light source 30, and the side surface of the light guide plate 30 facing the light source 30 is convexly provided with two protrusions 51 and a light-gathering portion 53, the light-gathering portion 53 focuses the light emitted from the light source 30 on the central axis of the light guide plate 50, the surface of the light-gathering portion 53 facing the light source 30 is convexly provided with a plurality of tooth-shaped protrusions 531, the two protrusions 51 are respectively positioned on two opposite sides of the light-gathering portion 53, the protrusions 51 comprise an incident surface 511 and a total reflection surface 513, the incident surface 511 faces the light-gathering portion 53, and the total reflection surface 513 faces away from the light-gathering portion 53.

In the present embodiment, the light-condensing portion 53 and the two protrusions 51 form a total reflection structure, on one hand, when the light beam is emitted to the light-condensing portion 53, the light beam is condensed on the central axis of the light guide plate 50 by refraction of the light-condensing portion 53, and then reflected in the light guide plate 50 for a plurality of times, so that a part of the light beam can be emitted from the area of the light guide plate 50 away from the light source 30, on the other hand, when the light beam is emitted to the incident surface 511, the part of the light beam is reflected, the reflected light beam is directed to the light-condensing portion 53, and can also be emitted to the central axis of the light guide plate 50 through the light-condensing portion 53, so that the light beam can be emitted from the area of the light guide plate 50 away from the light source 30, and a part of the light beam is refracted by the incident surface 511, and emitted to the total reflection surface 513, so that the light beam can also be emitted from the area of the light guide plate 50 away from the light source 30 by reflection of the total reflection surface 513; therefore, in the whole sign structure 100, the side close to the light source 30 has sufficient light and high brightness, so that the brightness of the light guide plate 50 can be ensured only by the light of the portion of the incident surface 511, while the side away from the light source 30 has insufficient light and low brightness, so that the light of the light source 30 is directly reflected only by the incident surface 511, and the brightness is insufficient, but after a portion of the light close to the light source 30 is refracted by the incident surface 511, the light is reflected by the total reflection surface 513 to be reflected to the side of the light guide plate 50 away from the light source 30, and a portion of the light is converged at the central axis of the light guide plate 50 by the light converging portion 53, and then reflected to the side of the light guide plate 50 away from the light source 30 by the total reflection occurring in the light guide plate 50, because the more away from the light source 30, the more converged light is reflected by the light converging portion 53 and the incident surface 511, therefore, the brightness of the light emitted from the light emitting surface 51 on the side far away from the light source 30 is similar to the brightness of the light emitted from the light emitting surface 51 on the side close to the light source 30, and the brightness is equivalent, in addition, the light is reflected and refracted by the plurality of tooth-shaped protrusions 531, the utilization rate of the light is improved, and the light can be dispersed more uniformly, so that the brightness of each part is more uniform during the display of the mark, the visual effect is improved, and the uniformity of the light guide plate 50 is ensured. According to the identification structure 100, most of light emitted by the light source 30 is converged in the central area of the light guide plate 50 through refraction of the light-condensing part 53, part of light is refracted, the surface light source is densely formed on the emitting surface 59 of the whole light guide plate 50 through refraction of the incident surface 511 and reflection of the total reflection surface 513, the emitted light brightness at each position is equivalent, the uniformity is guaranteed, the light effect is better, the identification light-emitting effect is better, the visual experience of a user is improved, the number of the light sources 30 can be reduced, the light energy utilization rate is improved, the light guide plate 50 has the same brightness, and the manufacturing cost is reduced.

It should be noted that, as shown in fig. 1 and fig. 2, in this embodiment, the outer contour of the projection of the light-condensing portion 53 to the box 10 is a closed and symmetrical shape formed by a straight line, an arc line or a combination of the straight line and the arc line, for example, the outer contour of the projection of the light-condensing portion 53 to the light-emitting surface 51 is a triangle, a quadrangle, a trapezoid or a fan, the shape of the curved surface of the light-condensing portion 53 facing the light source 30 is various, and the curved surface is a free curved surface, in order to reduce the processing difficulty and achieve the purpose of focusing the light on the central axis of the light guide plate 50, in this embodiment, the outer contour of the projection of the light-condensing portion 53 to the light-emitting surface 51 is set to be a triangle, and a skilled person may set the shape of the curved surface of the light-condensing portion 53 facing the light source 30 according to actual situations, and details thereof are not repeated herein.

In addition, the light source 30 may be an LED lamp, the LED lamp is connected to the circuit board 70, and light emitted from the LED lamp is emitted from the bottom plate 11 through the light guide plate 50, so that the identification structure 100 forms a specific identification, which may be a text or a pattern, or a combined structure of the text or the pattern, and the technician may select the identification according to actual situations, and details are not described herein.

Preferably, as shown in fig. 1 to 4, in the present embodiment, the tooth-shaped protrusions 531 extend in the thickness direction of the light guide plate 50, and the plurality of tooth-shaped protrusions 531 are arranged in the width direction of the light guide plate 30. Since the light source 30 is generally disposed in the central region of the light-gathering portion 53, and the light intensity of the light-gathering portion 53 is weaker in the region far from the light source, the plurality of tooth-shaped protrusions 531 are disposed to extend in the thickness direction of the light guide plate 50, so that the light can be reflected and refracted for multiple times by the tooth-shaped protrusions 531, and the light is incident on the region far from the light source of the light-gathering portion 53, so that the light intensity of all regions of the light-gathering portion 53 is kept constant, thereby improving the uniformity of the incident light, specifically, the cross section of the tooth-shaped protrusions 531 may not only adopt a triangular structure, but also adopt a trapezoid shape, a semicircle shape or other irregular shapes, and in this embodiment, the cross section of the tooth-shaped protrusions 531 is set to be trapezoid, and the tooth-shaped protrusions 531 of two adjacent trapezoids may have two inclined surfaces connected to each other, thereby enabling different refraction angles to be provided on different surfaces of the tooth-shaped protrusions 531, reflect and refract through two inclined planes, can be so that to be broken up from penetrating into the light that leads the light part 53 to incide, and then make light diffuse at board 30 in a poor light, improve the board 30 overall uniformity in a poor light, can let more soft that light becomes, it is not dazzling, but also can the most or all the penetrating light of abundant utilization, improve the utilization ratio of light. The angle between the opposite side surfaces of two adjacent tooth-shaped protrusions 531 is smaller than 45 degrees, if the angle between the two adjacent side surfaces is too large, some or a large amount of light is absorbed into the air when the light is reflected or refracted, so that the amount of reflected light is reduced, and the angle between the opposite side surfaces of two adjacent tooth-shaped protrusions 531 is smaller than 45 degrees in the embodiment, so that the light can be prevented from losing, the light can be reflected and refracted for many times in the tooth-shaped protrusions 531, and the utilization rate of the light is improved.

Preferably, as shown in fig. 1, 7 and 8, in the present embodiment, the light guide plate 50 includes a left side surface, a front side surface 55, a rear side surface 551 and a right side surface 553, the left side surface is opposite to the light source 30 and is provided with the light-condensing portion 53, the right side surface 553 and the left side surface are located at both sides opposite to the light guide plate 50, the front side surface 55 and the rear side surface 551 are respectively connected to the right side surface 553 and the left side surface, and the front side surface 55, the rear side surface 551 and the right side surface 553 are all coated with the total reflection coating 51. Specifically, in the present embodiment, the total reflection coating 57 is polymethyl methacrylate, also called as acryl or organic glass, and the light guide plate 50 is polycarbonate, in the present embodiment, the refractive index of the light guide plate 50 is greater than that of the total reflection coating 57, when the angle of the light striking the total reflection coating 57 is greater than the critical angle for generating total reflection, the light is not transmitted through the total reflection coating 57, and is totally reflected back, and is continuously transmitted forward in the light guide plate 50, and meanwhile, the refractive index of the light guide plate 50 is greater than that of the total reflection coating 57, so that the angle of light diffusion is greater, thereby achieving light expansion, and improving the light energy utilization rate. Of course, the technical staff may set the specific structures of the light guide plate 50 and the total reflection coating 57 according to the actual situation, and only the refractive index of the light guide plate 50 is required to be ensured to be larger than that of the total reflection coating 57, which is not described herein again.

Preferably, as shown in fig. 1, 7 and 8, in the present embodiment, the light guide plate 50 is provided with a recess 553a extending from the right side surface 553 to the light source 30, and light of the recess 553a is reflected and converged on the central axis of the light guide plate 50. Because the right side 553 is far away from the light source 30, the light intensity is the weakest, so set up the depressed part 553a that extends to the light source 30 direction by the right side 553 at the light guide plate 50, can make the light that reflects to the depressed part 553a can gather at the center pin department of light guide plate 50, thereby be equivalent to set up a snoot in the one side that keeps away from the light source 30 at light guide plate 50, thereby can make the intensity that improves light guide plate 50 and keeps away from the one side light of light source 30, further improve the luminance uniformity of each department of light guide plate 50, make the sign display effect better, improve user experience.

Preferably, as shown in fig. 1, 5 and 6, in the present embodiment, the light guide plate 50 includes a light emitting surface 58 and an emitting surface 59 opposite to the light emitting surface 58, the light emitting surface 58 is disposed facing the identification hole 11, and the emitting surface 59 of the light guide plate 50 is disposed with a plurality of printing dots. The light guide plate 50 includes a light emitting surface 51 located at the top of the light guide plate 50 and an emitting surface 59 located at the bottom of the light guide plate 50, and printed dots are distributed on the emitting surface 59. When the light does not strike the printing dots, the light is totally reflected in the light guide plate 50. When the light rays strike the printing dots, the total reflection is damaged, the light rays are subjected to diffuse reflection at the printing dots and are projected out of the light-emitting surface 51 of the light guide plate 50, and the uniform projection of the light rays is realized.

Preferably, in the present embodiment, the cross-sectional area of the printed dots gradually decreases in a direction away from the central axis of the light guide plate 50, and the pitch between the printed dots gradually increases in a direction away from the central axis of the light guide plate 50. Further, the distribution interval between every two adjacent printing mesh points gradually decreases in the direction from the side surface of the light guide plate 50 to the central axis of the light guide plate 50, that is, the closer to the central axis of the light guide plate 50, the denser the distribution of the printing mesh points is, so that the diffuse reflection effect of light in the light guide plate 50 is better, the uniform projection effect of light is better, and the requirements of the identification structure 100 that the middle is bright and the two ends are dark are met; so that light passes through the identification holes 11 of the identification to realize good lighting effect.

Preferably, in this embodiment, the material of the box 10 further includes a light diffusing agent. Specifically, in the present embodiment, the case 10 is integrally injection-molded by silica gel and light diffusing agent; the light diffusing agent is a microsphere product developed by means of crosslinking, grafting functional groups and the like by utilizing a high molecular polymerization technology. The light diffusant can be acrylic type, styrene type or acrylic resin type, the resins are transparent or semitransparent, most of light can pass through, and by utilizing the difference between the refractive index of the material of the light diffusant and the refractive index of the silica gel, the light passing through the silica gel becomes bright and soft after being refracted for multiple times, and the influence on the light transmittance of the material is small. The scattering and transmission of light are increased, the light source 30 and the dazzling light source 30 are shielded, and meanwhile, the whole resin can emit softer, more attractive and more elegant light, so that the box body 10 achieves the comfortable effect of light transmission and opaqueness.

Preferably, as shown in fig. 1, in this embodiment, the case 10 further accommodates a circuit board 70, the circuit board 70 is located on a side of the light guide plate 50 away from the identification hole 11, and the circuit board 70 is coated with an ink layer. Light source 30 installs on circuit board 70, so sets up, can promote circuit board 70 surface reflectivity, strengthens the holistic luminance of identification structure 100, and more specifically, in this embodiment, white printing ink layer can be chooseed for use on the printing ink layer, and white printing ink layer reflectivity keeps more than 85%, can further improve circuit board 70 reflectivity for identification structure 100 has highlight, hi-lite effect.

In addition, as shown in fig. 1, an EVA layer is further disposed between the circuit board 70 and the case 10, the EVA layer abuts against the circuit board 70 and the case 10, the EVA layer is an ethylene-vinyl acetate (vinyl acetate) copolymer, the circuit board 70 and the light guide plate 50 can be more stably fixed in the case 10 by the abutment of the EVA layer, and meanwhile, the flexibility, the impact resistance and the heat sealing performance of the identification structure 100 can be improved by the EVA layer.

In addition, as shown in FIG. 6 to FIG. 8, in the present embodiment, the distance between the light source 30 and the light guide plate 50 is L, L ≧ 0.2 mm. If the distance between the light source 30 and the light guide plate 50 is set too close, the light guide plate 50 will collide with the light source 30 when expanding, and the light source 30 will be damaged, so in the embodiment, the distance L between the light source 30 and the light guide plate 50 is set to be L ≧ 0.2mm, so that the gap required when the light guide plate 50 expands is reserved, and the damage of the light source 30 will not be caused.

The invention also provides an electronic device (not identified in the figures), which comprises a shell (not identified in the figures) and an identification structure 100, wherein the identification structure 100 is fixedly arranged on the shell through screws; the specific structure of the identification structure 100 refers to the above embodiments, and since the electronic device adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

In addition, it should be noted that the electronic device of the present invention may be a multimedia device such as a sound, a television, a computer, a mobile phone, and the like, and a technician may select to install the identifier structure 100 of the present invention on a specific electronic device according to actual situations, and details of the installation manner and the specific installation position are not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An identification structure, comprising:

the box body is provided with an identification hole, and a light source is accommodated in the box body; and

the light guide plate is accommodated in the box body and exposes the light of the light source in the identification hole, one side face of the light guide plate is opposite to the light source, two convex parts and a light-gathering part are convexly arranged on the side face, facing the light source, of the light guide plate, the light-gathering part focuses the light emitted by the light source on the central shaft of the light guide plate, a plurality of tooth-shaped bulges are convexly arranged on the surface, facing the light source, of the light-gathering part, the two convex parts are respectively positioned on two opposite sides of the light-gathering part, the convex parts comprise incident surfaces and total reflection surfaces, the incident surfaces face the light-gathering part, and the total reflection surfaces face away from the light-gathering part; the tooth-shaped bulges are used for reflecting and refracting light rays emitted by the light source;

the light guide plate comprises a left side surface, a right side surface, a front side surface and a rear side surface, the left side surface is opposite to the light source and is provided with the light-gathering part, the right side surface and the left side surface are positioned at two opposite sides of the light guide plate, the front side surface and the rear side surface are respectively connected with the right side surface and the left side surface, and the front side surface, the rear side surface and the right side surface are coated with total reflection coatings;

the light guide plate is provided with a sunken part extending from the right side to the light source direction, and the sunken part reflects and gathers light rays on a central shaft of the light guide plate.

2. The identification structure of claim 1, wherein said tooth-shaped protrusions extend in a thickness direction of said light guide plate, and a plurality of said tooth-shaped protrusions are arranged in a width direction of said light guide plate.

3. The identification structure of any one of claims 1 to 2, wherein the light guide plate comprises a light emitting surface and an emitting surface opposite to the light emitting surface, the light emitting surface is disposed facing the identification holes, and the emitting surface of the light guide plate is disposed with a plurality of printing dots.

4. The identification structure of claim 3, wherein the cross-sectional area of the printed dots gradually decreases away from the central axis of the light guide plate, and the spacing between the printed dots gradually increases away from the central axis of the light guide plate.

5. The identification structure of claim 1 wherein said box material further comprises a light diffuser.

6. The indicating structure of claim 1 wherein said housing further houses a circuit board, said circuit board being disposed on a side of said light guide plate away from said indicating hole, said circuit board being coated with an ink layer.

7. The identification structure of claim 1 wherein said light source is spaced from said light guide plate by a distance L ≧ 0.2 mm.

8. An electronic device comprising a housing and an identification structure mounted to the housing, the identification structure comprising an identification structure according to any of claims 1 to 7.