CN113917733A

CN113917733A - Mini-LED backlight display screen

Info

Publication number: CN113917733A
Application number: CN202110419883.XA
Authority: CN
Inventors: 董博彦; 林荣镇; 严丞辉
Original assignee: Beijing Xianxin Technology Co ltd
Current assignee: Beijing Xianxin Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-01-11

Abstract

The invention provides a Mini-LED backlight display screen, which relates to the technical field of LCD display and aims to solve the problem that black spots or black spots are easy to appear on the LED backlight display screen when a high-brightness picture is watched in the related technology. The Mini-LED backlight display screen provided by the invention can not only avoid black spots or black spots easily appearing on the LED backlight display screen, but also realize the effect of uniform light divergence, thereby improving the uniformity of the brightness of the LED backlight display screen and the utilization efficiency of light.

Description

Mini-LED backlight display screen

Technical Field

The invention relates to the technical field of LCD display, in particular to a Mini-LED backlight display screen.

Background

An LED (Light Emitting Diode) is a semiconductor electronic component that converts electrical energy into optical energy, and has the characteristics of low energy consumption, low heat productivity, high stability, high refresh rate, long service life, environmental protection, and the like, so that the LED (Light Emitting Diode) is widely applied to more and more scenes such as outdoor display, monitoring centers, advertisements, media display, stages, and the like, and an LED display screen, also called a liquid crystal display screen, is composed of structures such as an LED dot matrix module, a Dimmer chip (Dimmer IC), and a circuit board.

LED dot matrix module and dimmer chip all set up on the circuit board, and LED dot matrix module generally adopts the array form to arrange, and the dimmer chip is the electric device that is used for adjusting LED luminance, and dimmer self does not give out light, and dimmer chip and LED dot matrix module set up the homonymy at the circuit board in the current, and the size of dimmer chip is greater than the size of LED lamp.

However, when light is emitted, the light intensity at the position of the dimmer chip is poor, and when a high-brightness picture is viewed from the front of the display screen, black spots or black spots are easy to appear at the position of the dimmer chip.

Disclosure of Invention

The invention provides a Mini-LED backlight display screen which is beneficial to solving the problem that black spots or black spots are easy to appear on the LED backlight display screen when a high-brightness picture is watched in the prior art.

The invention provides a Mini-LED backlight display screen which comprises an LED dot matrix module, a lens body, a light modulator, an optical diaphragm and a circuit board, wherein the LED dot matrix module comprises a plurality of LED light-emitting diodes which are arranged in an array mode, the optical diaphragm and the circuit board are arranged oppositely, the LED dot matrix module and the light modulator are arranged on the circuit board, the light modulator is electrically connected with the circuit board, and the lens body covers the outside of the light modulator.

According to the Mini-LED backlight display screen provided by the invention, the lens body is arranged and covers the outside of the light modulator, so that on one hand, the lens body can prevent light rays emitted by the light emitting diode from reaching the light modulator, the problem that black spots or black spots are easy to appear at the position of the light modulator when a high-brightness picture is watched is solved, on the other hand, the lens body is arranged, the light rays can be refracted when reaching the lens body, the light rays emitted by the light emitting diode can reach the optical film from each position and are emitted from the optical film, the effect of realizing uniform light ray dispersion is achieved, and the brightness uniformity of the LED backlight display screen and the light utilization efficiency are improved.

As mentioned above for the Mini-LED backlight display, optionally, the lenticles are cones.

In the Mini-LED backlight display screen, optionally, the sidewall of the lens body has an incident surface and an exit surface, the incident surface is located on the sidewall of the lens body near the circuit board, and the exit surface is located on the sidewall of the lens body near the optical film;

and part of light rays emitted by the LED enter the lens body from the incident surface, are emitted from the emergent surface after being refracted, and are emitted out from the optical diaphragm.

As for the Mini-LED backlight display screen, optionally, an accommodating area is arranged inside the lens body, and the accommodating area is a cone;

the optical density of the medium filled in the accommodating area is smaller than that of the lens body.

In the Mini-LED backlight display screen, optionally, a reflecting sheet is disposed on an end surface of the lens body on a side close to the light modulator, and a reflecting surface is disposed on a side of the reflecting sheet close to the optical film;

and part of light emitted by the LED is refracted after passing through the incident surface and the accommodating area, the refracted light is reflected by the reflecting surface, and the part of reflected light reaches the emergent surface and is emitted from the optical diaphragm.

As for the Mini-LED backlight display screen, optionally, a positioning portion extends outwards from an end of the reflecting surface close to the light modulator, and the positioning portion is clamped outside the light modulator;

the positioning part is a light resistance piece.

As mentioned above, optionally, the Mini-LED backlight display screen includes a display area and a non-display area, a plurality of support portions are disposed between the display area and the non-display area, and the plurality of support portions are disposed at intervals in the non-display area and surround the periphery of the LED dot matrix module.

In the Mini-LED backlight display screen as described above, optionally, the height of the lens body is equal to the distance between the circuit board and the optical film.

In the Mini-LED backlight display screen, the lens body is made of a high molecular polymer.

As mentioned above, in the Mini-LED backlight display screen, optionally, a reflective coating is disposed on the reflective sheet.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural diagram of a Mini-LED backlight display screen according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a Mini-LED backlight display screen according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a lens body according to an embodiment of the invention;

FIG. 4 is a schematic structural diagram of a lens body according to an embodiment of the present invention;

FIG. 5 is a schematic view of another structure of a lens body according to an embodiment of the invention;

fig. 6 is a top view of a Mini-LED backlight display screen according to an embodiment of the present invention.

Description of reference numerals:

100-Mini-LED backlight display screen;

10-LED dot matrix module;

11-a light emitting diode;

20-a lens body;

21-an incident plane;

22-an exit face;

23-a reflective surface;

24-a holding area;

25-a positioning section;

30-a dimmer;

40-an optical film;

50-a circuit board;

60-support part.

Detailed Description

An LED (Light Emitting Diode) is a semiconductor electronic component that converts electrical energy into optical energy, and has the characteristics of low energy consumption, low heat generation, high stability, high refresh rate, long service life, environmental protection, and the like, so that it is widely used in more and more scenes such as outdoor display, monitoring centers, advertisements, media displays, stages, and the like, and an LED display screen, also called a liquid crystal display screen, is composed of structures such as an LED dot matrix module, a Dimmer chip (Dimmer IC), an optical film, and a circuit board, and is a device for displaying various information such as characters, images, videos, and the like, and integrates microelectronic technology, computer technology, and information processing technology, and has the advantages of bright color, wide dynamic range, high brightness, and the like, wherein the LED dot matrix module includes a plurality of LED Light Emitting diodes arranged in an array, and generally ensures the overall display brightness of a large-scale LED display screen to be consistent, in the same LED matrix module, the distance between two LEDs in each row and column needs to be the same.

In practice, the LED dot matrix module and the dimmer chip are both disposed on the circuit board, and the dimmer chip is electrically connected to the circuit board, wherein the dimmer chip is an electrical device for changing the luminous flux of the light source in the lighting device and adjusting the illumination level, and the basic principle thereof is that the purpose of dimming is achieved by changing the effective value of the current of the input light source, so that when the light is emitted from the light emitting diode, a part of the light is directly emitted from the optical film, and a part of the light is emitted to the dimmer chip, wherein the dimmer chip does not emit light itself, so that after the dimmer chip receives a part of the light, the position where the dimmer chip is located has no light reflection effect, and thus the light intensity at the position where the dimmer chip is located is poor compared with that at other positions, so that when a user views a high-brightness image of the LED backlight display screen, on one hand, black spots or black spots are easy to appear at the position where the dimmer chip is positioned on the display screen; on the other hand, because the position of the dimmer chip has no light reflection effect, the light can not be uniformly dispersed, and the brightness of the light is not uniform enough; secondly, in the manufacturing process of the LED backlight display screen, in order to ensure the flatness between the optical film and the circuit board, a plurality of supporting frames are usually disposed between the optical film and the circuit board, which, however, wastes time and labor in the installation process and has low production efficiency.

Based on the technical problems, the invention provides a Mini-LED backlight display screen, wherein a lens body is arranged and covers the outside of a light modulator, so that on one hand, the lens body can prevent light emitted by a light emitting diode from reaching the light modulator, thereby avoiding the problem that black spots or black spots are easily generated at the position of the light modulator when a high-brightness picture is viewed, and on the other hand, the lens body is arranged, so that the light emitted by the light emitting diode can reach an optical film from each position and be emitted from the optical film, thereby achieving the effect of uniformly dispersing the light, and improving the uniformity of the brightness of the LED backlight display screen and the utilization efficiency of the light.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 should be understood that the described embodiments are some embodiments of the present invention, but not all 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.

Fig. 1 is a schematic structural diagram of a Mini-LED backlight display provided in an embodiment of the present invention, fig. 2 is a schematic structural diagram of another Mini-LED backlight display provided in an embodiment of the present invention, fig. 3 is a schematic three-dimensional structural diagram of a lens body provided in an embodiment of the present invention, fig. 4 is a schematic structural diagram of a lens body provided in an embodiment of the present invention, fig. 5 is a schematic structural diagram of another lens body provided in an embodiment of the present invention, and fig. 6 is a top view of a Mini-LED backlight display provided in an embodiment of the present invention.

As shown in fig. 1 and fig. 2, in this embodiment, the Mini-LED backlight display 100 may include an LED dot matrix module 10, a lens body 20, a light modulator 30, an optical film 40, and a circuit board 50, where the LED dot matrix module 10 may include a plurality of light emitting diodes 11 arranged in an array, and the plurality of LED dot matrix modules 10 may form the Mini-LED backlight display 100 (see fig. 6 specifically), for example, an 8 × 8 LED dot matrix module 10 is formed by arranging 64 light emitting diodes 11 according to a certain rule, and is connected to a low level in a row and connected to a high level in a column, so that the light emitting diodes 11 are turned on to emit light. It should be noted that the number of the light emitting diodes 11 is not particularly limited as long as the LED dot matrix module 10 can be formed.

In the embodiment, the optical film 40 and the circuit board 50 are disposed opposite to each other, the LED dot matrix module 10 and the light modulator 30 are disposed on the circuit board 50, and the light modulator 30 is electrically connected to the circuit board 50, the lens body 20 is disposed outside the light modulator 30, such that when light is emitted from each of the LEDs 11, as shown in fig. 1, a portion of the light is directly emitted from the optical film 40 along an arrow L1 direction, a portion of the light is emitted onto the lens body 20 along an arrow L2 direction and is refracted, and the refracted light is emitted through the optical film 40, so that by disposing the lens body 20, the lens body 20 is disposed outside the light modulator 30, on one hand, the lens body 20 can block the light emitted from the LEDs 11 from reaching the light modulator 30, thereby avoiding the problem that black spots or black spots are likely to appear at the position of the light modulator 30 when viewing a high-brightness picture, on the other hand, by arranging the lens body 20, the light reaching the lens body 20 is refracted, that is, at the moment, the light is emitted from the optical film 40 at the position of the light modulator 30, so that the light emitted by the light emitting diode 11 can reach the optical film 40 from various positions and be emitted from the optical film 40, the effect of realizing uniform light dispersion is achieved, and the uniformity of the brightness of the Mini-LED backlight display 100 and the utilization efficiency of the light are improved.

In the embodiment, the lens body 20 is a transparent object formed by planes which are intersected with each other in pairs but are not parallel to each other, and is widely applied to the fields of digital equipment, science and technology, medical instruments and the like, and can be used for splitting light or dispersing light beams, and the lens body 20 can converge or disperse light rays emitted by a point light source to play a role in changing the size of a beam angle, so that the purpose of changing the illumination area and illumination value of an illuminated surface is achieved, wherein the light rays enter the lens body 20 and are subjected to refraction reaction due to the change of media.

In this embodiment, the size of the light modulator 30 is larger than the size of the light emitting diodes 11, so when the light modulator 30 is disposed on the same side as the LED dot matrix module 10, the light modulator 30 is easily affected by the arrangement of the peripheral light emitting diodes 11 due to its large size, for example, an 8 x 8 LED dot matrix module 10 is formed by arranging 64 light emitting diodes 11 according to a certain rule, and when the light modulator 30 is disposed between the light emitting diodes 11, the light modulator 30 occupies a part of the positions of the light emitting diodes 11, that is, the light emitting diodes 11 may deviate, so that when the light emitting diodes 11 emit light, the light may be uneven, and therefore, after the lens body 20 is covered on the light modulator 30, the position of the light modulator 30 emits even light under the action of the lens body 20, so as to ensure that the light emitted by the light emitting diodes 11 is emitted from the optical film 40 evenly, and improves the uniformity of the brightness of the Mini-LED backlight display 100 and the efficiency of light utilization.

In this embodiment, the LED dot matrix module 10 includes a plurality of LEDs 11 arranged in an array, the LEDs 11 have high brightness, are not glaring, save energy, and have an attractive appearance, are not direct light sources, and have no stroboscopic effect on protecting eyes, the LEDs 11 may be fixedly mounted on the circuit board 50, or detachably mounted on the circuit board 50, for example, by using fasteners such as screws, alternatively, the plurality of leds 11 may be attracted to the circuit board 50 by magnetic attraction, for example, a magnet is fixed on the circuit board 50, the patch is fixed on the light emitting diode 11, and it should be noted that, the light emitting diode 11 is fixed on the circuit board 50 without skew, therefore, the problem that bright seams or dark seams appear on the Mini-LED backlight display screen 100 and the display effect is influenced can be avoided.

In the present embodiment, the shape of the lens body 20 is not further limited, the lens body 20 may be a cone, the lens body 20 may be a tetrahedron, and the lens body 20 may also be other shapes, which is not specifically limited in the present embodiment, as long as the light emitted by the light emitting diode 11 can be emitted from the optical film 40 uniformly, which belongs to the protection scope of the present application, and in addition, the installation positions of the lens body 20 and the light modulator 30 are also not further limited, as long as the light emitted by the light emitting diode 11 can be blocked from reaching the light modulator 30, which is specifically described in the present embodiment by taking the case that the lens body 20 is covered outside the light modulator 30 as an example.

Therefore, in the Mini-LED backlight display 100 provided in this embodiment, by providing the lens body 20, the lens body 20 is covered outside the light modulator 30, on one hand, the lens body 20 can block the light emitted by the light emitting diode 11 from reaching the light modulator 30, so as to avoid the problem that a black spot or a black spot is easily generated at the position where the light modulator 30 is located when a high-brightness picture is viewed, and on the other hand, by providing the lens body 20, the light reaches the lens body 20 and is refracted, so that the light emitted by the light emitting diode 11 can reach the optical film 40 from various positions and be emitted from the optical film 40, so as to achieve the effect of uniformly dispersing the light, and improve the uniformity of the brightness of the Mini-LED backlight display 100 and the utilization efficiency of the light.

Further, in this embodiment, as shown in fig. 3 to fig. 5, the lens body 20 may be a cone, wherein the top of the cone is a tip, the bottom of the cone is a circle, the cone is a fan shape after being unfolded, and by setting the lens body 20 to be a cone, the light is reflected and refracted by the lens body 20, so that the light can be emitted from different heights and different angles, and is emitted out through the optical film 40 to be displayed on the Mini-LED backlight display screen 100, which is further beneficial to achieving the effect of uniform light divergence, and improving the uniformity of the brightness of the Mini-LED backlight display screen 100 and the utilization efficiency of the light, wherein the lens body 20 of the cone mainly includes a plano-convex conical lens, a plano-concave conical lens and a biconvex conical lens, the plano-convex conical lens can focus the laser beam to form a laser ring, and convert the parallel laser beam into a ring-shaped laser, the plano-concave conical lens is mainly composed of a plane and a concave cone, and can convert light spots into light rays along an axis.

Further, as shown in fig. 3, the sidewall of the lens body 20 may have an incident surface 21 and an exit surface 22, wherein the incident surface 21 is located on a side of the sidewall of the lens body 20 close to the circuit board 50, and the exit surface 22 is located on a side of the sidewall of the lens body 20 close to the optical film 40, so that part of the light emitted from the light emitting diode 11 can enter the inside of the lens body 20 from the incident surface 21, and be refracted to emit from the exit surface 22 and finally exit through the optical film 40, and therefore, by arranging the incident surface 21 and the exit surface 22, the light can be uniformly emitted through the lens body 20, thereby improving the light utilization efficiency.

Further, as shown in fig. 5, the accommodating area 24 may be disposed inside the lens body 20, and the accommodating area 24 is a cone, wherein in this embodiment, the optical density of the medium filled in the accommodating area 24 is smaller than the optical density of the lens body 20, it should be noted that the optical density is a characteristic of the material that can slow down the propagation speed of light and generate a refraction effect, and therefore, in this embodiment, the accommodating area 24 may be filled with an optically thinner medium, and the refractive index of the optically thinner medium is smaller, so that when light enters the accommodating area 24, that is, the light enters the optically thinner medium from the optically denser medium, the refraction effect may occur.

In this embodiment, the accommodating area 24 is specifically configured as a hollow area, and the hollow area is filled with air, so that the hollow area can provide a refraction effect on light rays and reduce the weight of the lens body 20.

Further, as shown in fig. 4 and 5, a reflective sheet may be disposed on an end surface of the lens body 20 close to the light modulator 30, and a side of the reflective sheet close to the optical film 40 has a reflective surface 23, so that a part of light emitted from the light emitting diode 11 is refracted after passing through the incident surface 21 and the accommodating area 24, the refracted light is reflected by the reflective surface 23, and a part of the reflected light reaches the exit surface 22 and exits from the optical film 40, and in addition, the part of the reflected light may be refracted again after passing through the accommodating area 24 and the incident surface 21, and the refracted light reaches the exit surface 22 and exits from the optical film 40.

Further, as shown in fig. 4 and 5, one end of the reflection surface 23 close to the light modulator 30 may have a positioning portion 25 extending outward, and the positioning portion 25 is clamped outside the light modulator 30 (see fig. 2 in particular), by providing the positioning portion 25, on one hand, the positioning portion 25 can fix the light modulator 30, and on the other hand, the positioning portion 25 abuts against the circuit board 50, so that the lens body 20 can be in a stable state.

In this embodiment, the shape of the positioning portion 25 is not particularly limited, for example, one possible implementation manner is that the positioning portion 25 may be a positioning ring, that is, the positioning portion 25 is an annular structure, and the annular structure may be covered outside the light modulator 30, so as to block light from reaching the light modulator 30, and another possible implementation manner is that the positioning portion 25 may be a plurality of positioning segments arranged at intervals, where the plurality of positioning segments may be arc segments, and of course, the shape of the positioning portion 25 includes but is not limited thereto, as long as the positioning portion can be clamped outside the light modulator 30, and all belong to the protection scope of the present application.

In this embodiment, the positioning portion 25 may be a light-blocking member, and the positioning portion 25 is a light-blocking member, so that light can be blocked from being emitted to the light modulator 30, and therefore, the problem that a black spot or a black spot is easily generated at the position where the light modulator 30 is located when a high-brightness image is viewed is avoided. The material of the resist member is mainly formed by mixing three components, i.e., a resin, a sensitizer, and a solvent.

Further, as shown in fig. 2, the Mini-LED backlight display screen 100 may include a display area and a non-display area, the display area and the non-display area are arranged at intervals, a plurality of supporting portions 60 may be disposed between the display area and the non-display area, the plurality of supporting portions 60 are disposed at intervals in the non-display area and surround the periphery of the LED dot matrix module 10, it should be noted that the display area is a position where the light emitting diode 11 is located, and the non-display area is a position between the light emitting diodes 11, by disposing the supporting portions 60, the optical film 40 can be connected to the circuit board 50 in front, so that the optical film 40 and the circuit board 50 are in a stable state, wherein the number of the supporting portions 60 is not limited, for example, the number of the supporting portions 60 may be 2, may be 3, or may be multiple.

Further, as shown in fig. 1 and 4, the height of the lens body 20 is equal to the distance between the circuit board 50 and the optical diaphragm 40, wherein the height of the lens body 20 is H, and by setting the height H of the lens body 20 equal to the distance between the circuit board 50 and the optical diaphragm 40, the lens body 20 can function as the support portion 60 at the position of the light modulator 30, so as to connect the optical diaphragm 40 to the circuit board 50. The height of the lens body 20 is not particularly limited, and may be set according to actual needs.

Further, the lens body 20 may be made of a high molecular polymer, wherein the high molecular polymer is a high molecular weight compound formed by repeatedly connecting bonds, and includes a crystalline structure, an amorphous structure, an oriented structure, and a woven structure, and the high molecular polymer has elasticity, plasticity, and insulation, wherein the elasticity is restorability of material deformation, the plasticity is that the high molecular polymer is softened for a long time after being heated to a certain temperature, and then becomes a viscous flow state, and the insulation is that the high molecular polymer has excellent insulation to electricity, sound, and heat.

Further, a reflective coating may be disposed on the reflective sheet, and the reflective sheet may form a reflective surface 23 by disposing the reflective coating, so that light entering the reflective surface 23 may generate a reflective effect.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, may be used in either the internal or the external relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used 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.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled 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 invention.

Claims

1. A Mini-LED backlight display screen, comprising: LED dot matrix module, the lens body, light modulator, optics diaphragm and circuit board, LED dot matrix module is including being a plurality of emitting diode that the array was arranged, optics diaphragm with the circuit board sets up relatively, LED dot matrix module with the light modulator sets up on the circuit board, the light modulator with circuit board electric connection, the lens body cover is established the outside of light modulator.

2. The Mini-LED backlight display of claim 1, wherein the lenticles are cones.

3. The Mini-LED backlight display of claim 2, wherein the sidewalls of the lenticles have an entrance surface and an exit surface, the entrance surface being located on the sidewalls of the lenticles on a side adjacent to the circuit board, the exit surface being located on the sidewalls of the lenticles on a side adjacent to the optical film;

and part of light rays emitted by the light emitting diode enter the lens body from the incident surface, are emitted from the emergent surface after being refracted, and are emitted out from the optical membrane.

4. The Mini-LED backlight display screen of claim 3, wherein the inside of the lenticles is provided with an accommodating area, and the accommodating area is a cone;

5. The Mini-LED backlight display screen of claim 4, wherein the end surface of the lens body near the light modulator is provided with a reflector plate, and the side of the reflector plate near the optical film is provided with a reflecting surface;

6. The Mini-LED backlight display screen of claim 5, wherein the end of the reflective surface near the light modulator is extended with a positioning part, and the positioning part is clamped outside the light modulator;

the positioning part is a light resistance piece.

7. The Mini-LED backlight display screen according to any one of claims 1 to 6, wherein the Mini-LED backlight display screen comprises a display area and a non-display area, a plurality of supporting parts are arranged between the display area and the non-display area, and the plurality of supporting parts are arranged in the non-display area at intervals and surround the periphery of the LED dot matrix module.

8. The Mini-LED backlight display of any one of claims 1 to 6, wherein the height of the lenticles is equal to the distance between the circuit board and the optical film.

9. The Mini-LED backlight display screen of any one of claims 1 to 6, wherein the lenticules are made of a high molecular polymer.

10. The Mini-LED backlight display screen of claim 5, wherein the reflective sheet is provided with a reflective coating.