CN217333065U

CN217333065U - Lamp bead lens, backlight module and liquid crystal display device

Info

Publication number: CN217333065U
Application number: CN202220575759.2U
Authority: CN
Inventors: 张小明
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-30
Anticipated expiration: 2032-03-16

Abstract

The application belongs to the technical field of display, and particularly relates to a lamp bead lens, a backlight module and a liquid crystal display device. The application aims at solving the problem that the optical uniformity of the existing backlight module is poor, the shadow area is easy to appear on the display screen, and the display effect is influenced. This application lamp pearl lens includes lens body and two reflection platforms, two reflection platforms are located the first side and the second side of lens body respectively, the reflection platform has plane of reflection and refracting surface, wherein, the plane of reflection has first contained angle with the bottom surface of lens body, the refracting surface has the second contained angle with the bottom surface, so make plane of reflection and refracting surface be the inclined plane of relative bottom surface slope, the light that the lamp pearl sent is when dispersing through the lens body, partial light is in the plane of reflection to the refracting surface, take place the middle zone of two adjacent lamp pearls of refraction back to same lamp strip at the refracting surface, improve this regional luminance, improve backlight unit's optical homogeneity, improve display device's display effect.

Description

Lamp bead lens, backlight module and liquid crystal display device

Technical Field

The application relates to the technical field of display, especially, relate to a lamp pearl lens, backlight unit and liquid crystal display device.

Background

With the development of Display technology, flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages of high image quality, power saving, thin body, and wide application range, and are therefore widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers. Since the lcd panel does not emit light, a backlight module is usually required to be disposed on the back of the lcd panel to provide backlight for the lcd panel.

The backlight module can be divided into a direct type backlight source and a side type backlight source according to the arrangement position of the light source. The direct type backlight source is usually set to be in a lamp panel form, and lamp beads on the lamp panel are distributed on a plane parallel to the liquid crystal display panel. The lamp pearl is the matrix usually and arranges on the lamp plate, and is concrete, and width direction interval arrangement along the lamp plate forms the lamp strip to length direction interval arrangement along the lamp plate has a plurality of lamp strips, and there can be bright dark difference directly over regional and the lamp pearl between two adjacent lamp pearls of same lamp strip, and the optical homogeneity that leads to backlight unit is poor, and the shadow region appears easily on the display screen, influences the display effect.

SUMMERY OF THE UTILITY MODEL

The application provides a lamp pearl lens, backlight unit and liquid crystal disply device to the optics homogeneity of solving current backlight unit is poor, appears the shadow region easily on the display screen, influences display effect's technical problem.

In order to solve the technical problem, the following technical scheme is adopted in the application:

the first aspect of the application provides a lamp pearl lens, includes:

the lens comprises a lens body, a first lens body and a second lens body, wherein the lens body is provided with a bottom surface and a first side surface and a second side surface which are oppositely arranged on the bottom surface at intervals, and the first side surface and the second side surface both extend along the length direction of the bottom surface; the bottom surface is provided with a containing groove for containing the lamp bead;

the two reflecting tables are respectively arranged on the first side surface and the second side surface; the reflecting table is provided with a reflecting surface for reflecting the light rays emitted by the lamp beads and a refracting surface for refracting the light rays reflected by the reflecting surface; the reflecting surface and the bottom surface have a first included angle, the refracting surface and the bottom surface have a second included angle, and the first included angle and the second included angle are acute angles.

Compared with the prior art, the lamp pearl lens that the first aspect of this application provided has following advantage:

the utility model provides a lamp pearl lens, including lens body and two reflection platforms, two reflection platforms are located the first side and the second side of lens body respectively, the reflection platform has plane of reflection and refracting surface, wherein, the plane of reflection has first contained angle with the bottom surface of lens body, the refracting surface has the second contained angle with the bottom surface, so make plane of reflection and refracting surface be the inclined plane of relative bottom surface slope, the light that the lamp pearl sent is when dispersing through the lens body, partial light is in the plane of reflection to the refracting surface, take place the middle zone of two adjacent lamp pearls of refraction back to same lamp strip at the refracting surface, improve this regional luminance, improve backlight unit's optical homogeneity, improve display device's display effect.

In one possible implementation manner, one end of the reflecting surface, which is far away from the lens body, is connected with one end of the refracting surface, which is far away from the lens body; and the reflecting surface and the refracting surface form a third included angle which is equal to the sum of the first included angle and the second included angle.

In one possible implementation, the first included angle is greater than 0 °, and the first included angle is less than 30 °.

In one possible implementation, the second included angle is greater than 10 °, and the second included angle is less than 30 °.

In one possible implementation manner, the reflecting table extends along the length direction of the bottom surface; the length of refracting surface along the width direction of bottom surface is first length, first length is greater than 1mm, just first length is less than 3 mm.

In one possible implementation, the bottom surface has a first center line parallel to a width direction thereof, the bottom surface is symmetrical about the first center line, and the reflection table is symmetrical about the first center line.

In one possible implementation manner, the lens body includes a support portion and a diffusion portion located above the support portion, the support portion has the bottom surface, the first side surface and the second side surface, and the bottom portions of the support portion and the diffusion portion are provided with the accommodating grooves; the bottom surface is provided with a plurality of fixed column bases, and the fixed column bases are arranged along the circumferential direction of the accommodating groove at intervals.

A second aspect of the application provides a backlight module, which comprises a lamp panel and the lamp bead lens of the first aspect, wherein the lamp panel comprises a circuit board and a plurality of lamp beads, the plurality of lamp beads are arranged at intervals along the width direction of the circuit board to form lamp bars, and the plurality of lamp bars are arranged at intervals along the length direction of the circuit board; every the outside of lamp pearl all covers establishes one lamp pearl lens, the lens body of lamp pearl lens is fixed on the circuit board, the reflecting table of lamp pearl lens is followed the length direction of circuit board extends.

The backlight module provided by the second aspect of the present application also has the same advantages as the lamp bead lens of the first aspect, because the backlight module comprises the lamp bead lens of the first aspect.

A third aspect of the present application provides a liquid crystal display device, comprising: the backlight module comprises a liquid crystal display panel and the backlight module, wherein the liquid crystal display panel is arranged in front of a lamp panel of the backlight module.

The liquid crystal display device provided by the third aspect of the present application also has the same advantages as the backlight module described in the second aspect, because the liquid crystal display device provided by the third aspect of the present application includes the backlight module described in the second aspect.

In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, other technical problems, technical features included in technical solutions, and advantageous effects brought by the technical features that can be solved by the bead lens, the backlight module, and the liquid crystal display device provided by the present application will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only a part of the embodiments of the present application, and the drawings and the description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for a person skilled in the art by referring to a specific embodiment, and other drawings can be obtained from the drawings without inventive efforts for the person skilled in the art.

Fig. 1 is a front view of a lamp bead lens provided in an embodiment of the present application;

FIG. 2 is an enlarged schematic view of region P of FIG. 1;

fig. 3 is a top view of a lamp bead lens provided in the present application;

fig. 4 is a light path diagram of a backlight module provided in the embodiment of the present application;

fig. 5 is an enlarged schematic view of the region Q in fig. 4.

Description of reference numerals:

100: a lens body; 110: a support portion; 111: a bottom surface; 112: a first side surface; 113: a second side surface; 120: a diffusion portion; 121: a lateral refracting surface; 122: a top refracting surface; 130: an accommodating recess; 131: a trench sidewall; 132: a trough top wall; 140: fixing the column base;

200: a reflection stage; 210: a reflective surface; 220: a refracting surface;

300: a lamp panel; 310: a circuit board; 320: a lamp bead;

410: a shadow area; 420: a reflective sheet; 430: a back plate; 440: and a diffusion plate.

Detailed Description

Backlight unit is shaded for liquid crystal display panel, backlight unit's lamp plate includes a plurality of lamp pearls that are matrix arrangement usually, and is concrete, width direction interval arrangement along the lamp plate forms the lamp strip, and length direction interval arrangement along the lamp plate has a plurality of lamp strips, there can be bright dark difference in the region between two adjacent lamp pearls of same lamp strip and directly over the lamp pearl, lead to backlight unit's optical homogeneity poor, the shadow region appears on the display screen easily, influence the display effect. Especially for the backlight module with the reflector plate positioned between the back plate and the lamp panel, the problem of the shadow area is especially obvious due to the low reflectivity of the lamp panel.

In view of this, the embodiment of the present application provides a lamp bead lens, which covers the outside of a lamp bead, and two reflecting tables are respectively disposed on two sides of the lamp bead lens, and each reflecting table is provided with a reflecting surface and a refracting surface. The light emitted by the lamp beads is reflected by the reflecting surface and is emitted to the refracting surface; after the light is refracted on the refraction surface, the light is emitted to the shadow area, so that the optical uniformity of the backlight module is improved, and the display effect of the display device is improved.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

The embodiment of the application provides a liquid crystal display device, including liquid crystal display panel and backlight unit, liquid crystal display panel installs in the front of backlight unit's lamp plate, and backlight unit's lamp plate provides backlight for liquid crystal display panel.

The liquid crystal display device of the embodiment of the application further comprises a main control board, wherein the main control board is respectively in communication connection with the driving board of the liquid crystal display panel and the lamp panel of the backlight module to control the picture display of the liquid crystal display panel.

It should be noted that, in the embodiments of the present application, the "front" is a side facing the display surface, and the "back" is a side facing away from the display surface.

Fig. 1 is a front view of a lamp bead lens provided in an embodiment of the present application; FIG. 2 is an enlarged schematic view of region P of FIG. 1; fig. 3 is a top view of a lamp bead lens provided in the present application; fig. 4 is a light path diagram of a backlight module provided in the embodiment of the present application; fig. 5 is an enlarged schematic view of the region Q in fig. 4.

With reference to fig. 4 and 5, the backlight module of the embodiment of the present application includes a lamp panel 300 and a lamp bead lens, where the lamp panel 300 includes a circuit board 310 and a plurality of lamp beads 320, and the lamp beads 320 may be LED lamp beads. The circuit board 310 has a first and a second opposing board, wherein the lamp beads 320 are arranged on the first board. Optionally, the circuit board 310 is a rectangular board. The length direction of the circuit board 310 corresponds to the Y-axis direction in the drawing, the width direction of the circuit board 310 corresponds to the X-axis direction in the drawing, and the thickness direction of the circuit board 310 corresponds to the Z-axis direction in the drawing.

In a possible arrangement of the lamp beads 320, a plurality of lamp beads 320 are arranged at intervals along the width direction (corresponding to the X axis) of the circuit board 310 to form lamp strips, and a plurality of lamp strips are arranged at intervals along the length direction (corresponding to the Y axis) of the circuit board 310, so that the plurality of lamp beads 320 are arranged on the circuit board 310 in a matrix. Generally, the plurality of lamp beads 320 are uniformly spaced along the width direction (corresponding to the X axis) of the circuit board 310, and the plurality of lamp strips are uniformly spaced along the length direction (corresponding to the Y axis) of the circuit board 310, so that the plurality of lamp beads 320 are uniformly disposed on the circuit board 310, and the backlight is uniform.

In order to disperse the light emitted by the lamp beads 320, the outer side of each lamp bead 320 is covered with a lamp bead lens, and the light emitted by the lamp beads 320 is reflected to the liquid crystal display panel after being refracted by the lamp bead lenses. The lamp bead lens is fixed on the circuit board 310, for example, adhered to avoid the lamp bead lens from moving relative to the lamp bead 320 to affect the light path.

With reference to fig. 1 to 3, the lamp bead lens of the embodiment of the present application includes a lens body 100 and two reflecting tables 200, wherein the lens body 100 has a bottom surface 111, and a first side surface 112 and a second side surface 113 that are located on the bottom surface 111 at an interval, and the bottom surface 111 is parallel to a first plate surface of a circuit board 310. The first side surface 112 and the second side surface 113 are parallel, and the first side surface 112 is perpendicular to the bottom surface 111. The first side surface 112 and the second side surface 113 extend along a length direction (corresponding to the Y axis) of the bottom surface 111, that is, the first side surface 112 and the second side surface 113 extend along a width direction (corresponding to the Y axis) of the circuit board 310. The bottom surface 111 is provided with a receiving groove 130 for receiving a lamp bead 320.

Referring to fig. 1, the receiving recess 130 includes a slot top wall 132 and slot side walls 131, and the slot side walls 131 surround the edges of the slot top wall 132, thus forming the receiving recess 130 with an open bottom end. Alternatively, the groove side wall 131 is an arc-shaped wall protruding toward the center of the receiving groove 130, and the groove top wall 132 is uneven, for example, the groove top wall 132 is a wall surface which is concave upward in the middle and convex downward at both sides. So set up, can increase the area of penetrating of light to improve the effect of dispersing of light.

The two reflecting tables 200 are respectively arranged on the first side surface 112 and the second side surface 113, and optionally, the two reflecting tables 200 and the lens body 100 are an integrally formed integral piece, which not only facilitates processing, but also is beneficial to reducing the loss of light transmission.

In some possible implementations, the reflective table 200 extends along the length direction (corresponding to the Y axis) of the circuit board 310, and the arrangement is such that the light reflected by the reflective table 200 can be refracted to the shadow area 410 between two adjacent lamp beads 320 of the same lamp strip.

Referring to fig. 2, the reflection stage 200 has a reflection surface 210 and a refraction surface 220, wherein the reflection surface 210 is used for reflecting light emitted from the lamp bead 320, and the refraction surface 220 is used for refracting the light reflected by the reflection surface 210. In the embodiment of the present application, the reflective surface 210 and the bottom surface 111 form a first included angle β, the refractive surface 220 and the bottom surface 111 form a second included angle α, and both the first included angle β and the second included angle α are acute angles. The projection of the reflecting surface 210 at least partially in the YZ plane is opposite to the lamp bead 320, so that the light emitted from the lamp bead 320 can be emitted to the reflecting surface 210. In the embodiment of the present application, the reflective surface 210 and the refractive surface 220 are both inclined surfaces inclined with respect to the bottom surface 111, so that the light can be emitted to the shadow area 410. The shadow area 410 is an area between two adjacent lamp beads 320 of the same lamp strip.

Of course, in order to emit light to the shadow area 410, in conjunction with fig. 3 to 5, the reflective stage 200 of the embodiment of the present application extends along the width direction (corresponding to the Y axis) of the circuit board 310, and at this time, the two reflective stages 200 extend along the length direction (corresponding to the X axis) of the circuit board 310.

It should be noted that the light is reflected or refracted on the reflecting surface 210, and certainly, the light emitted by the lamp bead 320 can be totally reflected on the reflecting surface 210 only by setting the material of the lamp bead lens and the first included angle β. The light is refracted at the refracting surface 220 and may also be reflected.

Therefore, the lamp bead lens provided by the embodiment of the application comprises a lens body 100 and two reflecting tables 200, the two reflecting tables 200 are respectively located on a first side surface 112 and a second side surface 113 of the lens body 100, the reflecting tables 200 are provided with a reflecting surface 210 and a refracting surface 220, wherein the reflecting surface 210 and a bottom surface 111 of the lens body 100 are provided with a first included angle β, and the refracting surface 220 and the bottom surface 111 are provided with a second included angle α, so that the reflecting surface 210 and the refracting surface 220 are inclined planes inclined relative to the bottom surface 111, when light rays emitted by the lamp beads 320 are dispersed through the lens body 100, part of the light rays are reflected to the refracting surface 220 at the reflecting surface 210, and are reflected to a middle area of two adjacent lamp beads 320 of the same lamp bar after being refracted at the refracting surface 220, so that the brightness of the area is improved, the optical uniformity of a backlight module is improved, and the display effect of the display device is improved.

In some implementations, the reflection stage 200 further includes other surfaces, for example, the reflection stage 200 may further include connection surfaces respectively connected with the reflection surface 210 and the refraction surface 220, and the reflection stage 200 is configured such that the structure of the reflection stage 200 is relatively stable.

In other implementations, with continued reference to fig. 1 and 2, an end of the reflection surface 210 away from the lens body 100 is connected to an end of the refraction surface 220 away from the lens body 100, that is, the cross-section of the reflection stage 200 is triangular. Thus, the reflecting surface 210 and the refracting surface 220 have a third included angle θ, which is equal to the sum of the first included angle β and the second included angle α.

With the arrangement, light rays reflected by the reflecting surface 210 can be refracted to the middle area of two adjacent lamp beads 320 of the same lamp strip through the refracting surface 220.

Optionally, the first included angle β is greater than 0 °, and the first included angle β is less than 30 °. In this way, the projection of the reflecting surface 210 on the YZ plane may be opposite to the lamp bead 320, so that part of the light emitted from the lamp bead 320 may be emitted to the reflecting surface 210, and the reflected light of the reflecting surface 210 may be emitted to the refracting surface 220. In a possible implementation manner, considering the material of the reflective table 200 and the refractive index thereof, total reflection occurs at the reflective surface 210, so that all the light rays emitted to the reflective surface 210 can be emitted to the refractive surface 220, and the loss in the light transmission process is increased.

Optionally, the second included angle α is greater than 10 °, and the four second included angles of the lamp beads are less than 30 °, so that the light refracted by the refraction surface 220 can be emitted to the shadow area, that is, between two adjacent lamp beads 320 of the same lamp strip, the second included angle α is prevented from being too large or too small, and the shadow area 410 is prevented from deviating.

Optionally, the reflecting table 200 extends along the length direction (corresponding to the Y axis) of the bottom surface 111; the length of refracting surface 220 along the width direction (corresponding X axle) of bottom surface 111 is first length L, and first length L is greater than 1mm, and first length L is less than 3mm, so set up, can make the light homoenergetic of plane of reflection 210 can be through refracting the middle zone to two adjacent lamp pearls 320 of same lamp strip of refracting surface 220 to improve the luminance of shadow region 410.

Optionally, the bottom surface 111 has a first central line a parallel to the width direction (corresponding to the X axis), the bottom surface 111 is symmetrical about the first central line a, and the reflective table 200 is symmetrical about the first central line a, so that the brightness of the shadow areas 410 on both sides of the first central line a can be uniformly improved, and the uniformity of the backlight can be further improved.

With reference to fig. 1 to 3, the lens body 100 includes a support portion 110 and a diffusion portion 120 located above the support portion 110, the support portion 110 is used to support the whole lens, and the support portion 110 has a bottom surface 111, a first side surface 112 and a second side surface 113. The bottom of the support part 110 and the diffusion part 120 are provided with receiving grooves 130 to receive the lamp beads 320.

In order to fix the lamp bead lens, in the embodiment of the present application, a plurality of fixing posts 140 are disposed on the bottom surface 111 of the supporting portion 110, and the plurality of fixing posts 140 are spaced apart along the circumferential direction of the accommodating groove 130, which is not a limitation to the arrangement manner of the fixing posts 140, for example, the plurality of fixing posts 140 may also be disposed at intervals along the length direction and the width direction of the rectangular bottom surface 111. The fixing pedestal 140 may be a cylinder, a prismatic column, or the like protruding from the bottom surface 111; the fixing post 140 is fixedly connected to, for example, adhered to, the first surface of the circuit board 310.

Referring to fig. 1, the fixing stub 140 has a certain interval from the side of the support 110. When setting up reflecting table 200, reflecting surface 210 downwardly extending to fixed column base 140 position of reflecting table 200, so set up the processing that not only makes things convenient for reflecting table 200, do benefit to the just right area of increase reflecting table 200 and lamp pearl 320 moreover to improve the light of refracting to the shadow region.

With continued reference to fig. 1, the diffuser 120 functions to diffuse the light of the lamp bead 320. Specifically, diffusion portion 120 includes lateral part refracting surface 121 and top refracting surface 122, and wherein lateral part refracting surface 121 can include the bottom arcwall face and connect the top inclined plane on bottom arcwall face top, so set up the area that can increase lateral part refracting surface 121, improves the diffusion effect of lamp pearl lens. The top of diffuser portion 120 is the toper recess, and the side of toper recess is top refracting surface 122, and top refracting surface 122 is to the convex arcwall face in recess center, so sets up the surface area that can increase top refracting surface 122 to improve the diffusion of lamp pearl lens.

Of course, the surface of diffuser portion 120 may have other shapes, for example, side refracting surface 121 of diffuser portion 120 may include multiple segments of connected arcuate surfaces.

With continued reference to fig. 4 and 5, the backlight module provided in the embodiment of the present application further includes a reflective sheet 420 and a back plate 430, where the back plate 430 is located on a side of the circuit board 310 away from the lamp bead 320, that is, the back plate 430 is located on a side of the second board surface of the circuit board 310. The reflective sheet 420 is fixed between the back plate 430 and the circuit board 310, and at the moment, the reflective sheet 420 is located on one side of the second plate surface of the circuit board 310, so that the reflective sheet 420 is convenient to operate automatically, and the production efficiency is improved.

Alternatively, the reflective sheet 420 is fixed on the second surface of the circuit board 310, for example, the reflective sheet 420 is adhered on the second surface of the circuit board 310. In some embodiments, the circuit board 310 has an opening facing the reflective sheet 420 of the light bar, and the light bar is fixed by dispensing, such that the reflective sheet 420 is adhered to the light bar through the opening of the circuit board 310. In addition, the heat that circuit board 310 and lamp pearl 320 distribute can also be passed through opening and trompil and transmitted to backplate 430 on, convenient heat dissipation.

Because the reflector plate 420 is arranged between the lamp beads 320 of two adjacent lamp strips, and the reflectivity of the reflector plate 420 is high, the reflecting table 200 is only arranged on the first side surface 112 and the second side surface 113 of the lens body 100 in the embodiment of the application, and the reflecting table 200 is positioned between two adjacent lamp beads 320 of the same lamp strip. Of course, this is not restrictive, and the reflecting stages 200 may be provided on the other two side surfaces of the lens body 100, respectively.

The backlight module of the embodiment of the application further includes a diffusion plate 440, a supporter (not shown) is disposed on the back plate 430, and a via hole is disposed on the circuit board 310, so that the supporter passes through and contacts with the diffusion plate 440, thereby supporting the diffusion plate 440. The diffusion plate 440 is used to diffuse and atomize the light emitted from the lamp beads 320, so that the point light source becomes a surface light source.

On the side of the diffuser 440 facing away from the support, a film is disposed, which can increase the brightness of the backlight, and may include a super micro-distance multi-crystal structure Brightness Enhancement Film (BEF), a reflective polarized brightness enhancement film (DBEF), and the like.

To sum up, in the backlight module provided in the embodiment of the present application, a lamp bead lens is covered on an outer side of each lamp bead, the lamp bead lens includes a lens body 100 and two reflecting tables 200, the two reflecting tables 200 are respectively located on the first side surface 112 and the second side surface 113 of the lens body 100, the reflecting tables 200 have a reflecting surface 210 and a refracting surface 220, wherein the reflecting surface 210 and the bottom surface 111 of the lens body 100 have a first included angle β, and the refracting surface 220 and the bottom surface 111 have a second included angle α, so that the reflecting surface 210 and the refracting surface 220 are both inclined planes inclined with respect to the bottom surface 111, when light emitted by the lamp beads 320 is diffused through the lens body 100, part of the light is reflected to the refracting surface 220 by the reflecting surface 210, and after the refracting surface 220 is refracted, the light is emitted to a middle area between two adjacent lamp beads 320 of the same lamp bar, brightness of the area is improved, and optical uniformity of the backlight module is improved, the display effect of the display device is improved.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lamp bead lens, characterized in that includes:

2. The lamp bead lens of claim 1, wherein the end of the reflecting surface away from the lens body is connected to the end of the refracting surface away from the lens body; and the reflecting surface and the refracting surface form a third included angle which is equal to the sum of the first included angle and the second included angle.

3. The lamp bead lens of claim 1, wherein the first included angle is greater than 0 ° and the first included angle is less than 30 °.

4. The lamp bead lens of claim 1, wherein the second included angle is greater than 10 °, and the second included angle is less than 30 °.

5. The lamp bead lens of claim 1, wherein the reflecting stage extends along a length of the bottom surface; the length of refracting surface along the width direction of bottom surface is first length, first length is greater than 1mm, just first length is less than 3 mm.

6. The lamp bead lens of claim 4, wherein the bottom surface has a first center line parallel to a width direction thereof, the bottom surface is symmetrical about the first center line, and the reflective stage is symmetrical about the first center line.

7. A lamp bead lens according to any one of claims 1-6, wherein the lens body comprises a support part and a diffusion part located above the support part, the support part having the bottom surface, the first side surface and the second side surface, the bottom of the support part and the diffusion part being provided with the receiving groove; the bottom surface is provided with a plurality of fixed column bases, and the fixed column bases are arranged at intervals along the circumferential direction of the accommodating groove.

8. A backlight module, comprising: the lamp panel comprises a circuit board and a plurality of lamp beads, the plurality of lamp beads are arranged at intervals along the width direction of the circuit board to form lamp bars, and the plurality of lamp bars are arranged at intervals along the length direction of the circuit board; every the outside of lamp pearl all covers establishes one lamp pearl lens, the lens body of lamp pearl lens is fixed on the circuit board, the reflecting table of lamp pearl lens is followed the length direction of circuit board extends.

9. The backlight module according to claim 8, further comprising a reflective sheet and a back plate, wherein the back plate is located on a side of the circuit board away from the lamp beads, and the reflective sheet is fixed between the back plate and the circuit board.

10. A liquid crystal display device, comprising: a liquid crystal display panel and the backlight module of claim 8 or 9, the liquid crystal display panel being mounted in front of a lamp panel of the backlight module.