A double-layer composite homogenizing film and a manufacturing system and method thereof

Abstract

The application discloses a double-layer composite light-uniformizing film and a manufacturing system and method thereof. The light-uniformizing film comprises a first film piece, a second film piece, a first upper film layer and a first lower film layer. The first lower film layer is located on the lower surface of the first base. The first upper film layer and the second upper film layer each comprise a first main body part and a first groove part. The first groove parts are irregularly distributed, and the structure and depth of each first groove part are different. The first lower film layer and the second lower film layer comprise a second main body part and a second groove part. The second groove parts are arrayed. Compared with the prior art, the first film layer with the first groove part is arranged on the front surface of the first base and the second base, and the second film layer with the second groove part is arranged on the back surface. More and more dispersed light points are formed on the projection surface, the light intensity of the display screen is more uniform, and the light-uniformizing effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of light uniformity film, in particular to a double-layer composite light uniformity film and a manufacturing system and method thereof. BACKGROUND

[0002] The light uniformity film is mainly used between a light source and a display screen. The light source is a plurality of point light sources. The light uniformity film is used to uniformly light the light rays of the plurality of point light sources, so that the light rays are dispersed, the point light source is changed into a surface light source, the light intensity distribution of the surface light source is more dispersed than that of the point light source, and the visual effect of the imaging picture of the display screen is better. However, in the prior art, some display screens may still have light points with relatively strong light intensity and insufficient light uniformity, and the light uniformity effect still needs to be improved.

[0003] At the same time, when the light uniformity film is manufactured, a solvent type thermosetting resin is used, which has a serious environmental problem. During the drying process of the solvent, a large amount of odor is generated. The length of the equipment needs to be more than 20 m, the space utilization rate is reduced, and the production speed is 15-20 m / min, so the production efficiency is low. SUMMARY

[0004] The purpose of the present application is to provide a double-layer composite light uniformity film and a manufacturing system and method thereof to solve the technical problems in the prior art.

[0005] The present application provides a double-layer composite light uniformity film, comprising:

[0006] A first film piece comprises a first base, a first upper film layer and a first lower film layer. The first upper film layer is located on the upper surface of the first base, and the first lower film layer is located on the lower surface of the first base.

[0007] A second film piece comprises a second base, a second upper film layer and a second lower film layer. The second upper film layer is located on the upper surface of the second base, and the second lower film layer is located on the lower surface of the second base.

[0008] Among them:

[0009] The first upper film layer and the second upper film layer each comprise a first main body part and a first groove part. A plurality of first groove parts are recessed on the surface of the first main body part. A plurality of first groove parts are irregularly distributed, and the structure and depth of each first groove part are different.

[0010] The first lower film layer and the second lower film layer comprise a second main body part and a second groove part. A plurality of second groove parts are recessed on the surface of the second main body part. A plurality of second groove parts are arrayed.

[0011] As described above, the double-layer composite light uniformity film, wherein preferably, the groove surface of the first groove part comprises an arc surface structure.

[0012] The double-layer composite light homogenizing film as described above, wherein preferably, the groove surface of the second groove portion comprises a quadrangular pyramid structure or a triangular pyramid structure.

[0013] The double-layer composite light homogenizing film as described above, wherein preferably, the edge of the quadrangular pyramid structure comprises a first edge, a second edge, a third edge and a fourth edge, the first edge and the second edge are symmetrically arranged, the first edge and the second edge form a first plane, the third edge and the fourth edge are symmetrically arranged, the third edge and the fourth edge form a second plane, and the first plane and the second plane have a height difference.

[0014] The double-layer composite light homogenizing film as described above, wherein preferably, the interval between two adjacent quadrangular pyramid structures comprises 20-100 um, and the height difference between the first plane and the second plane is 2-10 um.

[0015] The application also provides a light homogenizing film manufacturing system for manufacturing the light homogenizing film as described above, comprising a first device and a second device, wherein:

[0016] The first device comprises a first raw material roller, a first compression roller, a forming roller, a second compression roller, a first winding roller, a first tension roller and a UV light source arranged in sequence along a first raw material feeding direction, the first compression roller and the second compression roller are located on opposite sides of the forming roller, a preset gap is formed between the first compression roller and the forming roller and between the second compression roller and the forming roller, the surface of the forming roller is formed with a plurality of protrusions, the distribution of the protrusions is adapted to the distribution of the first groove portion or the second groove portion, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove portion or the second groove portion, the UV light source is located below the forming roller, and a plurality of first tension rollers are used to support the continuous tension control of the first raw material;

[0017] The second device comprises a first UV curing device, a second raw material roller, a third raw material roller, a third compression roller, a fourth compression roller, a second tension roller and a second winding roller, the second winding roller is located at the outlet end of the UV curing device, the third compression roller and the fourth compression roller are located at the inlet end of the UV curing device, a preset gap is formed between the third compression roller and the fourth compression roller, the second raw material sent out by the second raw material roller and the third raw material sent out by the third raw material roller are attached in the preset gap between the third compression roller and the fourth compression roller, the attached second raw material and the third raw material are wound on the second winding roller after being cured by the first UV curing device, and a plurality of second tension rollers are used to support the continuous tension control of the second raw material and / or the third raw material.

[0018] The uniform light film manufacturing system as described above, preferably further comprising a third device, the third device comprising a fourth raw material roller, a fifth pressing roller, a third winding roller, a sixth pressing roller, a third tension roller, a fourth tension roller, and a second UV curing device, wherein:

[0019] The fourth raw material roller, the fifth pressing roller, and the third winding roller are sequentially arranged along a fourth raw material feeding direction, the second UV curing device is located between the fifth pressing roller and the third winding roller, one end of the fourth raw material is connected to the fourth raw material roller, and the other end is wound on the third winding roller after sequentially passing through the fifth pressing roller and the second UV curing device, a plurality of third tension rollers are distributed on the feeding path of the fourth raw material, and the plurality of third tension rollers are used to support the continuous tension control of the fourth raw material;

[0020] The sixth pressing roller is pressed against the fifth pressing roller, the sixth pressing roller and a plurality of fourth tension rollers support a fifth raw material, the fourth raw material and the fifth raw material are clamped between the fifth pressing roller and the sixth pressing roller, the fifth raw material extends into the second UV curing device from the gap between the fifth pressing roller and the sixth pressing roller and is attached to the fourth raw material, and after passing through the second UV curing device together with the fourth raw material, the fifth raw material is separated from the fourth raw material.

[0021] The application also provides a uniform light film manufacturing method, which utilizes the aforementioned uniform light film manufacturing system to manufacture a uniform light film, comprising the following steps:

[0022] S1: using the first device, the first raw material originally wound on the first raw material roller is wound on the first winding roller after sequentially passing through the first pressing roller, the forming roller, and the second pressing roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove portions, and the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove portions, at this time the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first pressing roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first raw material is conveyed from the first raw material roller to the first winding roller, in the conveying process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form a first upper film layer, and at the same time the forming roller forms a plurality of first groove portions on the surface of the first upper film layer, thereby obtaining a first film piece in the first stage;

[0023] S2: using the first device, the first stage of the first film on the first winding roller is turned over and placed on the original first raw material roller, and the forming roller is replaced, the distribution of the protrusions on the forming roller at this stage is adapted to the distribution of the second groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove part, the first film of the first stage is wound on the first winding roller after passing through the first pressure roller, the forming roller and the second pressure roller in turn, at this time the back surface of the first film is attached to the forming roller, the driving member drives the first winding roller to rotate, the first film is transported from the first raw material roller to the first winding roller, and the UV glue is cured by using the UV light source during the transportation process, the UV glue is gradually cured to form the first lower film layer, and at the same time the forming roller forms a plurality of second groove parts on the surface of the first lower film layer, so that the first film of the finished stage is obtained;

[0024] S3: using the first device, the new first raw material wound on the first raw material roller is wound on the first winding roller after passing through the first pressure roller, the forming roller and the second pressure roller in turn, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, and the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove part, at this time the front surface of the substrate is attached to the forming roller, the liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the substrate is transported from the first raw material roller to the first winding roller, and the UV glue is cured by using the UV light source during the transportation process, the UV glue is gradually cured to form the second upper film layer, and at the same time the forming roller forms a plurality of first groove parts on the surface of the second upper film layer, so that the second film of the first stage is obtained;

[0025] S4: using the second device, one end of the first film of the finished stage is wound on the second raw material roller as the second raw material, the second raw material passes through the gap between the third pressure roller and the fourth pressure roller in turn and is then wound on the second winding roller by the first UV curing device, the second raw material is horizontally transported during the transportation process, the UV glue is poured on the second raw material between the second raw material roller and the third pressure roller, and at the same time one end of the second film of the first stage is wound on the second raw material roller as the third raw material, the third raw material passes through the gap between the third pressure roller and the fourth pressure roller in turn and is then wound on the second winding roller by the first UV curing device, the second raw material and the third raw material are attached at the gap between the third pressure roller and the fourth pressure roller and are integrated and cured in the first UV curing device to form the uniform light film of the first stage, at this time the first lower film layer of the first film is attached to the second upper film layer of the second film;

[0026] S5: using the first device, the first stage of the light uniformization film located on the second winding roller is placed on the first raw material roller after being turned over, and the forming roller is replaced, the distribution of the protrusions on the forming roller at this stage is adapted to the distribution of the second groove part, the outer profile surface of the protrusions is adapted to the inner profile surface of the second groove part, the first stage of the light uniformization film passes through the first compression roller, the forming roller and the second compression roller in turn and is wound on the first winding roller, at this time the back surface of the second film sheet is attached to the forming roller, the driving member drives the first winding roller to rotate, the light uniformization film is transported from the first raw material roller to the first winding roller, in the transportation process, the UV light source is used to cure the UV glue, the UV glue is gradually cured to form a second lower film layer, and at the same time the forming roller forms a plurality of second groove parts on the surface of the second lower film layer, thereby obtaining the finished stage of the light uniformization film.

[0027] The application also provides a light uniformization film manufacturing method, which uses the aforementioned light uniformization film manufacturing system to manufacture a light uniformization film, and includes the following steps:

[0028] S1: using the first device, the first raw material originally wound on the first raw material roller passes through the first compression roller, the forming roller and the second compression roller in turn and is wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, the outer profile surface of the protrusions is adapted to the inner profile surface of the first groove part, at this time the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first raw material is transported from the first raw material roller to the first winding roller, in the transportation process, the UV light source is used to cure the UV glue, the UV glue is gradually cured to form a first upper film layer, and at the same time the forming roller forms a plurality of first groove parts on the surface of the first upper film layer, thereby obtaining a first soft film;

[0029] S2: using the third device, the first soft film is sleeved on the fifth compression roller and a plurality of fourth tension rollers, serving as a fifth raw material, one end of the fourth raw material is led out from the fourth raw material roller, passes through the gap between the sixth compression roller and the fifth compression roller, is introduced into the second UV curing device and is wound into the third winding roller, and UV glue is added between the sixth compression roller and the fifth compression roller, since the first soft film is pressed on the second raw material from the fifth compression roller to the outlet of the second UV curing device, the first groove part is transferred to the UV glue layer on the fourth raw material, is cured at the second UV curing device, thereby obtaining a first film sheet with the first upper film layer of the first groove part;

[0030] S3: using the first device, the new first material originally wound on the first material roll is sequentially passed through the first pressure roller, the forming roller, the second pressure roller and wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the second groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove part, at this time, the front surface of the first material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first material is conveyed from the first material roll to the first winding roller, in the conveying process, the UV light source is used to cure the UV glue, the UV glue is gradually cured to form the first lower film layer, and the forming roller forms a plurality of second groove parts on the surface of the first lower film layer, so as to obtain a second soft film;

[0031] S4: using the third device, the second soft film is sleeved on the fifth pressure roller and a plurality of fourth tension rollers, as the fifth material, one end of the first film piece obtained in the S2 stage is introduced from the fourth material roll, passes through the gap between the sixth pressure roller and the fifth pressure roller, is introduced into the second UV curing device and is wound into the third winding roller, UV glue is added between the sixth pressure roller and the fifth pressure roller, the second groove part is transferred to the UV glue layer on the first film piece since the second soft film is pressed on the second material from the fifth pressure roller to the outlet of the second UV curing device, is cured at the second UV curing device, so as to obtain the first film piece with the first upper film layer, the first groove part and the second groove part of the first lower film layer;

[0032] S5: using the first device, the new first material originally wound on the first material roll is sequentially passed through the first pressure roller, the forming roller, the second pressure roller and wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove part, at this time, the front surface of the first material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first material is conveyed from the first material roll to the first winding roller, in the conveying process, the UV light source is used to cure the UV glue, the UV glue is gradually cured to form the second upper film layer, and the forming roller forms a plurality of first groove parts on the surface of the second upper film layer, so as to obtain a third soft film;

[0033] S6: using the third device, the third soft film sleeve is set on the fifth compression roller and several fourth tension rollers, as the fifth raw material, one end of the fourth raw material is drawn out from the fourth raw material roller, passes through the gap between the sixth compression roller and the fifth compression roller, and then is introduced into the second UV curing device and is wound into the third winding roller, and UV glue is added between the sixth compression roller and the fifth compression roller. Because the first soft film is pressed on the second raw material from the fifth compression roller to the outlet of the second UV curing device, the first groove part is transferred to the UV glue layer on the fourth raw material, and is cured at the second UV curing device, so that the second film piece with the second upper film layer of the first groove part is obtained;

[0034] S7: using the second device, one end of the first film piece in the finished product stage is wound on the second raw material roller, serving as the second raw material, which passes through the gap between the third compression roller and the fourth compression roller in turn, and then is wound on the second winding roller through the first UV curing device. The second raw material is horizontally conveyed during conveying. UV glue is poured on the second raw material between the second raw material roller and the third compression roller, and one end of the second film piece manufactured in the S6 step is wound on the second raw material roller, serving as the third raw material. The third raw material passes through the gap between the third compression roller and the fourth compression roller in turn, and then is wound on the second winding roller through the first UV curing device. The second raw material and the third raw material are attached at the gap between the third compression roller and the fourth compression roller, and are cured as a whole in the first UV curing device to form the first stage of the light uniformity film. At this time, the first lower film layer of the first film piece is attached to the second upper film layer of the second film piece;

[0035] S8: using the first device, the new first raw material originally wound on the first raw material roller passes through the first compression roller, the forming roller and the second compression roller in turn and is wound on the first winding roller. The distribution of the protrusions on the forming roller is adapted to the distribution of the second groove part, and the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove part. At this time, the front surface of the first raw material is attached to the forming roller. Liquid UV glue is poured between the first compression roller and the forming roller according to the preset parameters by using manpower or mechanical equipment. The driving member drives the first winding roller to rotate. The first raw material is conveyed from the first raw material roller to the first winding roller. During conveying, the UV glue is cured by using the UV light source. The UV glue is gradually cured to form the second lower film layer. At the same time, the forming roller forms several second groove parts on the surface of the second lower film layer, so that the fourth soft film is obtained.

[0036] S9: using the third device, the fourth soft film sleeve is set on the fifth compression roller and several fourth tension rollers, as the fifth raw material, the first stage of the light uniformization film obtained in S7 stage is turned over and one end is drawn out from the fourth raw material roller, through the gap between the sixth compression roller and the fifth compression roller, and then introduced into the second UV curing device and wound into the third winding roller, and the UV glue is added between the sixth compression roller and the fifth compression roller, because the fourth soft film is pressed on the light uniformization film from the fifth compression roller to the outlet of the second UV curing device, so as to transfer the second groove part to the UV glue layer on the light uniformization film, and obtain the cured product at the second UV curing device, so as to obtain the finished light uniformization film.

[0037] Compared with the prior art, the first film layer with the first groove part is arranged on the front surface of the first substrate and the second substrate, and the second film layer with the second groove part is arranged on the back surface, more dispersed light spots can be formed on the projection surface, the light intensity of each part of the display screen is more uniform, the light uniformization effect is better, the customer end module assembly is facilitated, the number of light uniformization films is reduced from multiple to one, the failure rate caused by dirt, scratches and other reasons during the assembly of the film piece is reduced. The total thickness can be reduced, and the space utilization rate of the production equipment is high, the production speed is improved, and the solvent-free UV glue curing molding roller molding technology is used, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is the structure diagram of the light uniformization film provided by the embodiment of the application Figure One ;

[0039] Figure 2 is the structure diagram of the light uniformization film provided by the embodiment of the application Figure Two ;

[0040] Figure 3 is the SEM diagram of the first groove part of the light uniformization film provided by the embodiment of the application

[0041] Figure 4 is the SEM diagram of the second groove part of the first film piece of the light uniformization film provided by the embodiment of the application

[0042] Figure 5 is the SEM diagram of the second groove part of the second film piece of the light uniformization film provided by the embodiment of the application

[0043] Figure 6 is the structure diagram of the first device provided by the embodiment one of the application

[0044] Figure 7 is the structure diagram of the second device provided by the embodiment one of the application

[0045] Figure 8is a structure schematic view of a forming roller with a first type of protrusion of the uniform light film manufacturing system provided by embodiment one of the present application;

[0046] Figure 9 is a structure schematic view of a forming roller with a second type of protrusion of the uniform light film manufacturing system provided by embodiment one of the present application.

[0047] Figure 10 is a structure schematic view of a third device provided by embodiment two of the present application.

[0048] Legend:

[0049] 100-uniform light film, 101-first film piece, 102-first base, 103-first upper film layer, 104-first lower film layer, 105-second film piece, 106-second base, 107-second upper film layer, 108-second lower film layer, 109-first main body, 110-first groove, 111-second main body, 112-second groove, 113-first side, 114-second side, 115-third side, 116-fourth side;

[0050] 200-first device, 201-first raw material roller, 202-first compression roller, 203-forming roller, 204-second compression roller, 205-first winding roller, 206-protrusion, 207-UV light source, 208-first tension roller;

[0051] 300-second device, 301-first UV curing device, 302-second raw material roller, 303-third raw material roller, 304-third compression roller, 305-fourth compression roller, 306-second tension roller, 307-second winding roller;

[0052] 400-third device, 401-fourth raw material roller, 402-fifth compression roller, 403-third winding roller, 404-sixth compression roller, 405-third tension roller, 406-fourth tension roller, 407-second UV curing device. DETAILED DESCRIPTION

[0053] The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be explained as a limitation of the present application.

[0054] In the prior art, the LCD display module includes a display screen and a backlight source, the backlight source emits light rays, and the light rays are imaged on the display screen, the backlight source includes a plurality of point light sources, if the point light sources are directly projected on the display screen, the image formed by the display screen will be non-uniform in light and dark, which affects the visual effect of the imaging picture, therefore, it is usually necessary to arrange a light uniformizing film 100 between the backlight source and the display screen to uniformize the light rays of the point light sources, the light uniformizing film 100 changes the light rays of the point light sources into light rays of a surface light source, the light intensity distribution of the surface light source is more dispersed than that of the point light source, and the visual effect of the imaging picture of the display screen is also better, but in the prior art, some display screens still have light points with relatively strong light intensity and insufficient light uniformization, and the light uniformization effect of the light uniformizing film 100 still needs to be improved.

[0055] As shown in Figure 1 and Figure 2 Embodiments of the present application provide a double-layer composite light uniformizing film 100, which comprises:

[0056] The first film sheet 101 comprises a first base 102, a first upper film layer 103 and a first lower film layer 104, the first upper film layer 103 is located on the upper surface of the first base 102, the first lower film layer 104 is located on the lower surface of the first base 102, and the upper surface and the lower surface are oppositely arranged along a first direction, in the embodiments of the present application, the first direction is the normal direction of the display screen, the first base 102 can adopt a transparent base material such as an optical-grade PET or PC film with a surface subjected to chemical treatment, and the thickness is 25-250 μm, including the end point value, specifically, the thickness is 25 um, 50 um, 75 um, 100 um, 125 um, 150 um, 175 um, 200 um, 225 um, 250 um, etc., of course, it can also be other values within the above range, which are not limited herein, when the value exceeds the range, the first base 102 is too thick, the light transmittance is reduced, the light intensity is affected, and the first base 102 is too thin, the strength is insufficient, it is easy to bend, and the light transmission is also affected.

[0057] The second film sheet 105 comprises a second base 106, a second upper film layer 107 and a second lower film layer 108, the second upper film layer 107 is located on the upper surface of the second base 106, and the second lower film layer 108 is located on the lower surface of the second base 106, the second base 106 can adopt a transparent base material such as an optical-grade PET or PC film with a surface subjected to chemical treatment, and the thickness is 25-250 μm, including the end point value, specifically, the thickness is 25 um, 50 um, 75 um, 100 um, 125 um, 150 um, 175 um, 200 um, 225 um, 250 um, etc., of course, it can also be other values within the above range, which are not limited herein, when the value exceeds the range, the second base 106 is too thick, the light transmittance is reduced, the light intensity is affected, and the second base 106 is too thin, the strength is insufficient, it is easy to bend, and the light transmission is also affected.

[0058] The first upper film layer 103 and the second upper film layer 107 each comprise a first main body part 109 and a first groove part 110, as shown in the figure Figure 1 As shown in the figure, a plurality of first groove parts 110 are recessed on the surface of the first main body part 109, the plurality of first groove parts 110 are irregularly distributed, the structure and depth of each first groove part 110 are different, the structure and depth of each first groove part 110 are different, the groove surface of the first groove part 110 comprises an arc surface structure, the shape of the arc surface structure of each first groove part 110 is different, and there is also a case, as shown in the figure Figure 2 As shown in the figure, the recessed structure of the first groove part 110 is formed by a protrusion protruding from the surface of the first main body part 109, the structure and function of which can be referred to the foregoing, as shown in the figure Figure 3 Thus, a high-haze fog surface shape is formed on the surface of the first film layer, the haze is the percentage of the transmitted light intensity deviating from the incident light by more than 2.5° in the total transmitted light intensity, the higher the haze of the light diffusion film 100, the more the light is diffused after passing through the light diffusion film 100, and the better the light diffusion effect, in the embodiment, by forming irregular arc recesses on the surface of the first main body part 109, the haze of the fog surface shape is between 5% and 99%, including the end point value.

[0059] The first lower film layer 104 and the second lower film layer 108 comprise a second main body part 111 and a second groove part 112, a plurality of second groove parts 112 are recessed on the surface of the second main body part 111, the plurality of second groove parts 112 are arrayed, as shown in the figure Figure 5 As shown in the figure, the groove surface of the second groove part 112 comprises a quadrangular pyramid structure or a triangular pyramid structure. The quadrangular pyramid structure or the triangular pyramid structure limits the exit angle range of the light by using the principle of cone collimation, thereby improving the collimation effect of the light, so that more dispersed light spots can be formed on the display screen, the light intensity at each place of the projection surface is more uniform, and the light diffusion effect is better.

[0060] In the embodiments provided in the present application, as shown in the figure Figure 4 As shown in the figure, the groove surface of the first groove part 112 of the first film sheet 101 is a quadrangular pyramid structure, the edge of the quadrangular pyramid structure comprises a first edge 113, a second edge 114, a third edge 115 and a fourth edge 116, the first edge 113 and the second edge 114 are symmetrically arranged, the plane where the first edge 113 and the second edge 114 are located forms a first plane, the third edge 115 and the fourth edge 116 are symmetrically arranged, the plane where the third edge 115 and the fourth edge 116 are located forms a second plane, and the distance between the first plane and the first base 102 is greater than the distance between the second plane and the first base 102. Thus, a high-low misalignment is formed, which on the one hand can further enhance the light emission uniformity of the light, thereby improving the collimation degree of the light in each direction of the composite film, and on the other hand, when a plurality of light diffusion films 100 are attached, the height difference part is embedded in the attachment adhesive layer, thereby improving the firmness of the attachment.

[0061] In a feasible implementation, the third edge 115 and the fourth edge 116 of the part on the second plane are flush with the first plane, thereby forming a partial rectangular or square structure on the first plane.

[0062] Referring to Figure 5 As shown, the groove surface of the second groove part 112 is a quadrangular pyramid structure, and the edge of the quadrangular pyramid structure also includes the first edge 113, the second edge 114, the third edge 115, and the fourth edge 116. The first edge 113 and the second edge 114 are symmetrically arranged, and the plane on which the first edge 113 and the second edge 114 are located forms a first plane. The third edge 115 and the fourth edge 116 are symmetrically arranged, and the plane on which the third edge 115 and the fourth edge 116 are located forms a second plane. The distance between the first plane and the second base 106 is equal to the distance between the second plane and the second base 106.

[0063] In the embodiments provided in the present application, the distance between two adjacent quadrangular pyramid structures is 20-100 um, including the end point value. Specifically, the distance value is 20 um, 40 um, 60 um, 80 um, 100 um, etc. Of course, it can also be other values within the above range, which are not limited herein. When the distance value exceeds the range, the light uniformity is reduced due to too large distance, and the film gloss, transparency, and especially imaging degree are reduced due to too small distance.

[0064] In the embodiments provided in the present application, the height difference between the first plane and the second plane is 2-10 um, including the end point value. Specifically, the height difference includes 2 um, 4 um, 6 um, 8 um, 10 um, etc. Of course, it can also be other values within the above range, which are not limited herein. When the height difference exceeds the range, the bonding force of the two light uniformity films 100 is poor due to too small height difference, and the light flux is affected due to too large height difference, thereby reducing the light uniformity.

[0065] Compared with the prior art, the present application sets the first film layer with the first groove part 110 on the front surface of the first base 102 and the second film layer with the second groove part 112 on the back surface, can form more dispersed light points on the projection surface, makes the light intensity of the display screen more uniform, and has better light uniformity effect. Meanwhile, it is convenient for the customer end module assembly, reduces the number of light uniformity films 100 from multiple to one, reduces the defect rate caused by dirt, scratches, etc. during the film piece assembly, and reduces the total thickness.

[0066] In the prior art, when the light uniformity film 100 is manufactured, a solvent type thermosetting resin is used, which has a serious environmental problem. During the solvent drying process, a large amount of odor is generated, the equipment length needs to be more than 20 m, the space utilization rate is reduced, and the production speed is 15-20 m / min, thereby reducing the production efficiency.

[0067] Embodiment one

[0068] To solve the above technical problems, while manufacturing the light uniformization film 100 mentioned in the above embodiments, the application also provides a light uniformization film 100 manufacturing system for manufacturing the aforementioned light uniformization film 100, comprising a first device 200 and a second device 300, wherein:

[0069] Referring to Figure 6 As shown in the figure, the first device 200 comprises a first raw material roller 201, a first compression roller 202, a forming roller 203, a second compression roller 204, a first winding roller 205, a first tension roller 208 and a UV light source 207 arranged in sequence along a first raw material feeding direction, the first compression roller 202, the forming roller 203, the second compression roller 204 and the first winding roller 205 are all driven to rotate by a driving mechanism, so that the substrate can be wound through the first compression roller 202, the forming roller 203 and the second compression roller 204 in sequence and then wound on the first winding roller 205, the first compression roller 202 and the second compression roller 204 are located on the opposite sides of the forming roller 203, a preset gap is formed between the first compression roller 202 and the forming roller 203 and between the second compression roller 204 and the forming roller 203, the surface of the forming roller 203 is formed with a plurality of protrusions 206, the distribution of the protrusions 206 is adapted to the distribution of the first groove part 110 or the second groove part 112, the outer profile surface of the protrusions 206 is adapted to the inner profile surface of the first groove part 110 or the second groove part 112, the UV light source 207 is located below the forming roller 203, and a plurality of first tension rollers 208 are used to support the continuous tension control of the first raw material.

[0070] A feeding table (not shown) is arranged above the area between the first compression roller 202 and the forming roller 203 for providing UV glue, the UV glue is provided between the first compression roller 202 and the forming roller 203, the substrate continuously feeds and is clamped by the first compression roller 202 and the forming roller 203, the UV glue is extruded to form a groove by the protrusions 206 on the forming roller 203 in the process, thereby forming the first groove part 110 or the second groove part 112, the UV light source 207 provides curing effect in the process, and the solvent-free UV glue curing cooperation forming roller 203 forming technology is more energy-saving and environmentally friendly, compared with the prior art, the device provided by the application is 11 m long, so that the space utilization rate of the production equipment is large, the production speed is 10-20 m / min, and the production efficiency is improved.

[0071] In a feasible implementation manner, the UV glue comprises a mixture of 50-60% mass fraction of acrylate monomer, 40-50% mass fraction of acrylate oligomer and 1-5% light initiator and other auxiliary agents. By using such high light transmittance UV glue, the forming degree is good, the light transmittance is good, and the light flux can be ensured.

[0072] Referring to Figure 7As shown, the second device 300 comprises a first UV curing device 301, a second raw material roller 302, a third raw material roller 303, a third compression roller 304, a fourth compression roller 305, a second tension roller 306, and a second winding roller 307 located at the outlet end of the UV curing device, the third compression roller 304 and the fourth compression roller 305 are located at the inlet end of the UV curing device, a preset gap is formed between the third compression roller 304 and the fourth compression roller 305, the second raw material sent out by the second raw material roller 302 and the third raw material sent out by the third raw material roller 303 are attached in the preset gap between the third compression roller 304 and the fourth compression roller 305, and the attached second raw material and third raw material are wound on the second winding roller 307 after being cured by the first UV curing device 301. A plurality of second tension rollers 306 are used to support and provide continuous tension control of the second raw material and / or the third raw material.

[0073] The first compression roller 202, the forming roller 203, the second compression roller 204, and the first winding roller 205 are all driven to rotate by a driving mechanism, so that the substrate can be wound in sequence through the first compression roller 202, the forming roller 203, and the second compression roller 204, and then wound on the first winding roller 205. A plurality of tension rollers are also provided on the material path to provide continuous tension control. The first compression roller 202 and the second compression roller 204 are located on opposite sides of the forming roller 203, and a preset gap is formed between the first compression roller 202 and the forming roller 203 and between the second compression roller 204 and the forming roller 203. The value of the preset gap matches the thickness of the substrate. The first compression roller 202 and the second compression roller 204 are light rollers. The surface of the forming roller 203 is formed with a plurality of protrusions 206. For reference Figure 8 and Figure 9 As shown, the distribution of the protrusions 206 is adapted to the distribution of the first groove portion 110 or the second groove portion 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove portion 110 or the second groove portion 112.

[0074] In the embodiments provided in the present application, a UV light source 207 is also included, which is located below the forming roller 203 and above the area between the first compression roller 202 and the forming roller 203. A feeding table (not shown) is provided to provide UV glue, which is provided between the first compression roller 202 and the forming roller 203. The substrate continuously feeds and is clamped by the first compression roller 202 and the forming roller 203. The UV glue is extruded by the protrusions 206 on the forming roller 203 to form grooves, thereby forming the first groove portion 110 or the second groove portion 112. The UV light source 207 provides curing action in this process, so that the UV glue forms the first film layer or the second film layer. The use of solvent-free UV glue curing combined with the forming technology of the forming roller 203 is more energy-saving and environmentally friendly. Compared with the prior art, the device provided in the present application is 11 m long, which makes the space utilization rate of the production equipment large, and the production speed is 10-20 m / min, so that the production efficiency is improved.

[0075] In one feasible embodiment, the UV adhesive comprises a mixture of 50–60% by mass of acrylate monomers, 40–50% by mass of acrylate oligomers, and 1–5% by mass of photoinitiators and other additives. Using this high-transmittance UV adhesive results in good formability and excellent light transmittance, ensuring sufficient light flux.

[0076] Based on the above-described uniform light film 100 manufacturing system, this embodiment also provides a method for manufacturing the uniform light film 100, including the following steps:

[0077] S1: Using the first device 200, the first raw material originally wound on the first raw material roller 201 is passed through the first pressure roller 202, the forming roller 203, and the second pressure roller 204 in sequence and then wound onto the first take-up roller 205. The distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the first groove 110, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove 110. At this time, the front surface of the first raw material is attached to the forming roller 203. Using manual or mechanical equipment, liquid UV glue is poured between the first pressure roller 202 and the forming roller 203 according to preset parameters. The driving component drives the first take-up roller 205 to rotate, and the first raw material is conveyed from the first raw material roller 201 to the first take-up roller 205. During the conveying process, the UV glue is cured using the UV light source 207. The UV glue gradually cures to form the first upper film layer 103. At the same time, the forming roller 203 forms a number of first grooves 110 on the surface of the first upper film layer 103, thereby obtaining the first film 101 of the first stage.

[0078] S2: Using the first device 200, the first film 101 of the first stage, located on the first take-up roller 205, is flipped and placed on the original first raw material roller 201. The forming roller 203 is then replaced. In this stage, the distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the second groove 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove 112. The first film 101 of the first stage passes through the first pressure roller 202, the forming roller 203, and the second pressure roller 204 in sequence and is then wound up. At the first take-up roller 205, the back surface of the first film 101 is attached to the forming roller 203. The driving component drives the first take-up roller 205 to rotate. The first film 101 is conveyed from the first raw material roller 201 to the first take-up roller 205. During the conveying process, UV adhesive is cured using UV light source 207. The UV adhesive is gradually cured to form the first lower film layer 104. At the same time, the forming roller 203 forms a number of second grooves 112 on the surface of the first lower film layer 104, thereby obtaining the first film 101 in the finished product stage.

[0079] S3: using the first device 200, the new first material wound on the first material roller 201 is sequentially passed through the first compression roller 202, the forming roller 203, the second compression roller 204 and wound on the first winding roller 205, the distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the first groove part 110, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove part 110, at this time, the front surface of the substrate is attached to the forming roller 203, the liquid UV glue is poured between the first compression roller 202 and the forming roller 203 according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller 205 to rotate, the substrate is transported from the first material roller 201 to the first winding roller 205, in the transportation process, the UV glue is cured by using the UV light source 207, the UV glue is gradually cured to form the second upper film layer 107, and the forming roller 203 forms a plurality of first groove parts 110 on the surface of the second upper film layer 107, so as to obtain the second film piece 105 in the first stage;

[0080] S4: using the second device 300, one end of the first film piece 101 in the finished stage is wound on the second material roller 302 as the second material, the second material is sequentially passed through the gap between the third compression roller 304 and the fourth compression roller 305, and then wound on the second winding roller 307 by the first UV curing device, the second material is horizontally transported in the transportation process, the UV glue is poured on the second material between the second material roller 302 and the third compression roller 304, and one end of the second film piece 105 in the first stage is wound on the second material roller 302 as the third material, the third material is sequentially passed through the gap between the third compression roller 304 and the fourth compression roller 305, and then wound on the second winding roller 307 by the first UV curing device, the second material and the third material are attached in the gap between the third compression roller 304 and the fourth compression roller 305, and are integrated and cured in the first UV curing device 301 to form the uniform light film 100 in the first stage, at this time, the first lower film layer 104 of the first film piece 101 is attached to the second upper film layer 107 of the second film piece 105;

[0081] S5: using the first device 200, the first stage of the light uniformity film 100 located on the second winding roller 307 is turned over and placed on the first raw material roller 201, and the forming roller 203 is replaced, the distribution of the protrusions 206 on the forming roller 203 at this stage is adapted to the distribution of the second groove part 112, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove part 112, the first stage of the light uniformity film 100 passes through the first pressure roller 202, the forming roller 203, and the second pressure roller 204 in turn and is wound on the first winding roller 205, at this time the back surface of the second film piece 105 is attached to the forming roller 203, the driving member drives the first winding roller 205 to rotate, and the light uniformity film 100 is transported from the first raw material roller 201 to the first winding roller 205, in the transportation process, the UV light source 207 is used for curing the UV glue, the UV glue is gradually cured to form the second lower film layer 108, and at the same time the forming roller 203 forms a plurality of second groove parts 112 on the surface of the second lower film layer 108, thereby obtaining the finished stage of the light uniformity film 100.

[0082] The light uniformity film 100 manufactured by the above manufacturing method can form more dispersed light spots on the projection surface, so that the light intensity of the display screen is more uniform, the light uniformity effect is better, and at the same time, the solvent-free UV glue curing is used in cooperation with the forming technology of the forming roller 203, which is more energy-saving and environmentally friendly, and the space utilization rate of the production equipment is high and the production speed is improved.

[0083] Example two

[0084] The difference between this embodiment and example one is that a third device 400 is added, referring to Figure 10 The third device 400 includes a fourth raw material roller 401, a fifth pressure roller 402, a third winding roller 403, a sixth pressure roller 404, a third tension roller 405, a fourth tension roller 406, and a second UV curing device 407, wherein:

[0085] The fourth raw material roller 401, the fifth pressure roller 402, and the third winding roller 403 are sequentially arranged along the fourth raw material feeding direction, the second UV curing device 407 is located between the fifth pressure roller 402 and the third winding roller 403, one end of the fourth raw material is connected to the fourth raw material roller 401, and the other end is wound on the third winding roller 403 after passing through the fifth pressure roller 402 and the second UV curing device 407 in turn, a plurality of third tension rollers 405 are distributed on the feeding path of the fourth raw material, and the plurality of third tension rollers 405 are used to support and provide continuous tension control of the fourth raw material;

[0086] The sixth compression roller 404 is pressed against the fifth compression roller 402, the sixth compression roller 404 and the plurality of fourth tension rollers 406 support a fifth raw material, the fourth raw material and the fifth raw material are clamped between the fifth compression roller 402 and the sixth compression roller 404, the fifth raw material extends into the second UV curing device 407 from the gap between the fifth compression roller 402 and the sixth compression roller 404 and is attached to the fourth raw material, and after passing through the second UV curing device together with the fourth raw material, the fifth raw material is separated from the fourth raw material.

[0087] Based on the light homogenizing film 100 manufacturing system provided in Embodiment Two, the application further provides a light homogenizing film 100 manufacturing method, comprising the following steps:

[0088] S1: using the first device 200, the first raw material originally wound on the first raw material roller 201 is sequentially wound on the first compression roller 202, the forming roller 203, the second compression roller 204, and then wound on the first winding roller 205, the distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the first groove part 110, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove part 110, at this time, the front surface of the first raw material is attached to the forming roller 203, liquid UV glue is poured between the first compression roller 202 and the forming roller 203 according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller 205 to rotate, the first raw material is conveyed from the first raw material roller 201 to the first winding roller 205, in the conveying process, the UV light source 207 is used for curing the UV glue, the UV glue is gradually cured to form the first upper film layer 103, and at the same time, the forming roller 203 forms a plurality of first groove parts 110 on the surface of the first upper film layer 103, thereby obtaining a first soft film;

[0089] S2: using the third device 400, the first soft film is sleeved on the fifth compression roller 402 and the plurality of fourth tension rollers 406 as a fifth raw material, one end of the fourth raw material is led out from the fourth raw material roller 401, passes through the gap between the sixth compression roller 404 and the fifth compression roller 402, is introduced into the second UV curing device 407, and is wound into the third winding roller 403, and the UV glue is added between the sixth compression roller 404 and the fifth compression roller 402, since the first soft film is pressed on the second raw material from the fifth compression roller 402 to the outlet of the second UV curing device 407, the first groove part 110 is transferred to the UV glue layer on the fourth raw material, and is cured at the second UV curing device 407, thereby obtaining the first film piece 101 with the first upper film layer 103 and the first groove part 110;

[0090] S3: using the first device 200, the new first material originally wound on the first material roller 201 is sequentially wound on the first winding roller 205 through the first compression roller 202, the forming roller 203 and the second compression roller 204, the distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the second groove part 112, the outer profile surface of the protrusions 206 is adapted to the inner profile surface of the second groove part 112, at this time, the front surface of the first material is attached to the forming roller 203, liquid UV glue is poured between the first compression roller 202 and the forming roller 203 according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller 205 to rotate, the first material is transported from the first material roller 201 to the first winding roller 205, in the transportation process, the UV light source 207 is used to cure the UV glue, the UV glue is gradually cured to form the first lower film layer 104, and the forming roller 203 forms a plurality of second groove parts 112 on the surface of the first lower film layer 104, so as to obtain the second soft film;

[0091] S4: using the third device 400, the second soft film is sleeved on the fifth compression roller 402 and a plurality of fourth tension rollers 406, as the fifth material, one end of the first film piece 101 obtained in the S2 stage is introduced from the fourth material roller 401, passes through the gap between the sixth compression roller 404 and the fifth compression roller 402, is wound into the third winding roller 403 after being introduced into the second UV curing device 407, and the UV glue is added between the sixth compression roller 404 and the fifth compression roller 402, because the second soft film is pressed on the second material from the fifth compression roller 402 to the outlet of the second UV curing device 407, the second groove part 112 is transferred to the UV glue layer on the first film piece 101, is cured at the second UV curing device 407, so as to obtain the first film piece 101 with the first upper film layer 103 and the second groove part 112 of the first lower film layer 104;

[0092] S5: using the first device 200, the new first material originally wound on the first material roller 201 is sequentially wound on the first winding roller 205 through the first compression roller 202, the forming roller 203 and the second compression roller 204, the distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the first groove part 110, the outer profile surface of the protrusions 206 is adapted to the inner profile surface of the first groove part 110, at this time, the front surface of the first material is attached to the forming roller 203, liquid UV glue is poured between the first compression roller 202 and the forming roller 203 according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller 205 to rotate, the first material is transported from the first material roller 201 to the first winding roller 205, in the transportation process, the UV light source 207 is used to cure the UV glue, the UV glue is gradually cured to form the second upper film layer 107, and the forming roller 203 forms a plurality of first groove parts 110 on the surface of the second upper film layer 107, so as to obtain the third soft film;

[0093] S6: using the third device 400, the third soft film sleeve is set on the fifth pressure roller 402 and several fourth tension rollers 406 as the fifth raw material, one end of the fourth raw material is drawn out from the fourth raw material roller 401, passes through the gap between the sixth pressure roller 404 and the fifth pressure roller 402, and then is introduced into the second UV curing device 407 and is wound into the third winding roller 403, and UV glue is added between the sixth pressure roller 404 and the fifth pressure roller 402. Since the first soft film is pressed on the second raw material from the fifth pressure roller 402 to the outlet of the second UV curing device 407, the first groove part 110 is transferred to the UV glue layer on the fourth raw material, and is cured at the second UV curing device 407, thereby obtaining the second film piece 105 with the second upper film layer 107 of the first groove part 110;

[0094] S7: using the second device 300, one end of the first film piece 101 in the finished product stage is wound on the second raw material roller 302 as the second raw material, which is sequentially conveyed through the gap between the third pressure roller 304 and the fourth pressure roller 305, and then is wound on the second winding roller 307 through the first UV curing device. The second raw material is horizontally conveyed during conveying, and the UV glue is poured on the second raw material between the second raw material roller 302 and the third pressure roller 304. At the same time, one end of the second film piece 105 manufactured in the S6 step is wound on the second raw material roller 302 as the third raw material, which is sequentially conveyed through the gap between the third pressure roller 304 and the fourth pressure roller 305, and then is wound on the second winding roller 307 through the first UV curing device. The second raw material and the third raw material are attached at the gap between the third pressure roller 304 and the fourth pressure roller 305, and are cured as a whole in the first UV curing device 301 to form the first stage of the light homogenizing film 100. At this time, the first lower film layer 104 of the first film piece 101 is attached to the second upper film layer 107 of the second film piece 105;

[0095] S8: using the first device 200, the new first raw material originally wound on the first raw material roller 201 is sequentially conveyed through the first pressure roller 202, the forming roller 203, and the second pressure roller 204, and is wound on the first winding roller 205. The distribution of the protrusions 206 on the forming roller 203 is adapted to the distribution of the second groove part 112, and the outer profile surface of the protrusions 206 is adapted to the inner profile surface of the second groove part 112. At this time, the front surface of the first raw material is attached to the forming roller 203. The liquid UV glue is poured between the first pressure roller 202 and the forming roller 203 according to the preset parameters by using manpower or mechanical equipment. The driving member drives the first winding roller 205 to rotate. The first raw material is conveyed from the first raw material roller 201 to the first winding roller 205. In the conveying process, the UV glue is cured by using the UV light source 207. The UV glue is gradually cured to form the second lower film layer 108. At the same time, the forming roller 203 forms several second groove parts 112 on the surface of the second lower film layer 108, thereby obtaining the fourth soft film.

[0096] S9: using the third device 400, the fourth soft film sleeve is set on the fifth compression roller 402 and several fourth tension rollers 406 as the fifth raw material, the end of the first stage of the light uniformization film 100 obtained in the S7 stage is drawn out from the fourth raw material roller 401, passes through the gap between the sixth compression roller 404 and the fifth compression roller 402, and is then wound into the third winding roller 403 after being introduced into the second UV curing device 407, and the UV glue is added between the sixth compression roller 404 and the fifth compression roller 402, since the fourth soft film is pressed on the light uniformization film 100 from the fifth compression roller 402 to the outlet of the second UV curing device 407, the second groove part 112 is transferred to the UV glue layer on the light uniformization film 100, and curing is obtained at the second UV curing device 407, thereby obtaining the finished light uniformization film 100.

[0097] The light uniformization film 100 manufactured by the above manufacturing method can form more dispersed spotlight points on the projection surface, so that the light intensity of the display screen is more uniform, the light uniformization effect is better, the solvent-free UV glue curing is used in cooperation with the forming roller 203 forming technology, which is more energy-saving and environmentally friendly, the space utilization rate of the production equipment is high, and the production speed is improved.

[0098] The above describes the structure, features and effects of the present application in detail according to the embodiments shown in the drawings, and the above description is only the preferred embodiments of the present application, but the present application is not limited to the embodiments shown in the drawings, any changes or modifications made according to the concept of the present application, or equivalent embodiments with equivalent changes, as long as they are within the scope of the present application, should be within the protection scope of the present application.

Claims

1. A homogenizing film manufacturing system for manufacturing a homogenizing film, characterized by, The uniform light film comprises: a first film sheet comprising a first base, a first upper film layer and a first lower film layer, the first upper film layer being located on the upper surface of the first base, and the first lower film layer being located on the lower surface of the first base; a second film sheet comprising a second base, a second upper film layer and a second lower film layer, the second upper film layer being located on the upper surface of the second base, and the second lower film layer being located on the lower surface of the second base; wherein: the first upper film layer and the second upper film layer each comprise a first main body part and a first groove part, a plurality of the first groove parts being recessed on the surface of the first main body part, and the plurality of the first groove parts being irregularly distributed, the structure and depth of each of the first groove parts being different; the first lower film layer and the second lower film layer comprise a second main body part and a second groove part, a plurality of the second groove parts being recessed on the surface of the second main body part, and the plurality of the second groove parts being arrayed; the system comprises a first device and a second device, wherein: the first device comprises a first raw material roller, a first compression roller, a forming roller, a second compression roller, a first winding roller, a first tension roller and a UV light source arranged in sequence along a first raw material feeding direction, the first compression roller and the second compression roller being located on opposite sides of the forming roller, a preset gap being formed between the first compression roller and the forming roller and between the second compression roller and the forming roller, the surface of the forming roller being provided with a plurality of protrusions, the distribution of the protrusions being adapted to the distribution of the first groove part or the second groove part, the outer contour surface of the protrusions being adapted to the inner contour surface of the first groove part or the second groove part, the UV light source being located below the forming roller, and the plurality of first tension rollers being used to support the continuous tension control of the first raw material; the second device comprises a first UV curing device, a second raw material roller, a third raw material roller, a third compression roller, a fourth compression roller, a second tension roller and a second winding roller, the second winding roller being located at the outlet end of the UV curing device, the third compression roller and the fourth compression roller being located at the inlet end of the UV curing device, a preset gap being formed between the third compression roller and the fourth compression roller, the second raw material sent out by the second raw material roller and the third raw material sent out by the third raw material roller being attached in the preset gap between the third compression roller and the fourth compression roller, the attached second raw material and the third raw material being wound on the second winding roller after being cured by the first UV curing device, and the plurality of second tension rollers being used to support the continuous tension control of the second raw material and / or the third raw material.

2. The light uniformity film manufacturing system of claim 1, wherein a third device is further included, and the third device comprises a fourth raw material roller, a fifth compression roller, a third winding roller, a sixth compression roller, a third tension roller, a fourth tension roller and a second UV curing device, wherein: The fourth raw material roller, the fifth compression roller and the third winding roller are sequentially arranged along a fourth raw material feeding direction, the second UV curing device is located between the fifth compression roller and the third winding roller, one end of the fourth raw material is connected to the fourth raw material roller, and the other end is sequentially wound on the third winding roller via the fifth compression roller and the second UV curing device, and a plurality of third tension rollers are distributed on a feeding path of the fourth raw material, and the plurality of third tension rollers are used to support the continuous tension control of the fourth raw material; The sixth compression roller is pressed against the fifth compression roller, the sixth compression roller and the plurality of fourth tension rollers support a fifth raw material, the fourth raw material and the fifth raw material are clamped between the fifth compression roller and the sixth compression roller, the fifth raw material extends into the second UV curing device from a gap between the fifth compression roller and the sixth compression roller and is attached to the fourth raw material, and after passing through the second UV curing device together with the fourth raw material, the fifth raw material is separated from the fourth raw material.

3. A method for manufacturing a light uniformizing film, which uses the light uniformizing film manufacturing system according to claim 2 to manufacture a light uniformizing film, characterized by: The method comprises the following steps: S1: using the first device, the first raw material originally wound on the first raw material roller is sequentially wound on the first winding roller via the first compression roller, the forming roller and the second compression roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove portions, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove portions, at this time, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by using manpower or mechanical equipment, the first winding roller is driven to rotate by the driving member, the first raw material is conveyed from the first raw material roller to the first winding roller, and the UV glue is cured by using a UV light source in the conveying process, the UV glue is gradually cured to form a first upper film layer, and the forming roller forms a plurality of first groove portions on the surface of the first upper film layer, thereby obtaining a first film piece in a first stage; S2: using the first device, the first film piece in the first stage located on the first winding roller is turned over and placed on the first raw material roller, and the forming roller is replaced, the distribution of the protrusions on the forming roller in this stage is adapted to the distribution of the second groove portions, the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove portions, the first film piece in the first stage is sequentially wound on the first winding roller via the first compression roller, the forming roller and the second compression roller, at this time, the back surface of the first film piece is attached to the forming roller, the first winding roller is driven to rotate by the driving member, the first film piece is conveyed from the first raw material roller to the first winding roller, the UV glue is cured by using a UV light source in the conveying process, the UV glue is gradually cured to form a first lower film layer, and the forming roller forms a plurality of second groove portions on the surface of the first lower film layer, thereby obtaining a first film piece in a finished stage. S3: using the first device, the new first material wound on the first material roll is sequentially passed through the first pressure roller, the forming roller, the second pressure roller and wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, the outer profile surface of the protrusions is adapted to the inner profile surface of the first groove part, at this time, the front surface of the substrate is attached to the forming roller, the liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the substrate is conveyed from the first material roll to the first winding roller, in the conveying process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form the second upper film layer, and the forming roller forms a plurality of first groove parts on the surface of the second upper film layer, so that the second film piece in the first stage is obtained; S4: using the second device, one end of the first film piece in the finished stage is wound on the second material roll to serve as the second material, the second material is sequentially passed through the gap between the third pressure roller and the fourth pressure roller and then wound on the second winding roller by the first UV curing device, the second material is conveyed horizontally in the conveying process, the UV glue is poured on the second material between the second material roll and the third pressure roller, and meanwhile, one end of the second film piece in the first stage is wound on the second material roll to serve as the third material, the third material is sequentially passed through the gap between the third pressure roller and the fourth pressure roller and then wound on the second winding roller by the first UV curing device, the second material and the third material are attached at the gap between the third pressure roller and the fourth pressure roller and are integrated in the first UV curing device to form the uniform light film in the first stage, at this time, the first lower film layer of the first film piece is attached to the second upper film layer of the second film piece; S5: using the first device, the uniform light film in the first stage located on the second winding roller is turned over and placed on the first material roll, and the forming roller is replaced, the distribution of the protrusions on the forming roller in this stage is adapted to the distribution of the second groove part, the outer profile surface of the protrusions is adapted to the inner profile surface of the second groove part, the uniform light film in the first stage is sequentially passed through the first pressure roller, the forming roller, the second pressure roller and wound on the first winding roller, at this time, the back surface of the second film piece is attached to the forming roller, the driving member drives the first winding roller to rotate, the uniform light film is conveyed from the first material roll to the first winding roller, in the conveying process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form the second lower film layer, and the forming roller forms a plurality of second groove parts on the surface of the second lower film layer, so that the uniform light film in the finished stage is obtained.

4. A method for manufacturing a light uniformizing film, which uses the light uniformizing film manufacturing system according to claim 3 to manufacture a light uniformizing film, characterized by: The method comprises the following steps: S1: using the first device, the first material originally wound on the first material roller is sequentially passed through the first pressure roller, the forming roller, the second pressure roller and wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove part, at this time, the front surface of the first material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first material is conveyed from the first material roller to the first winding roller, in the conveying process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form the first upper film layer, and the forming roller forms a plurality of first groove parts on the surface of the first upper film layer, so as to obtain the first soft film; S2: using the third device, the first soft film is sleeved on the fifth pressure roller and a plurality of fourth tension rollers, as the fifth material, one end of the fourth material is led out from the fourth material roller, passes through the gap between the sixth pressure roller and the fifth pressure roller, is introduced into the second UV curing device and is wound into the third winding roller, the UV glue is added between the sixth pressure roller and the fifth pressure roller, since the first soft film is pressed on the second material from the fifth pressure roller to the outlet of the second UV curing device, the first groove part is transferred to the UV glue layer on the fourth material, is cured at the second UV curing device, so as to obtain the first film piece with the first upper film layer and the first groove part; S3: using the first device, the new first material originally wound on the first material roller is sequentially passed through the first pressure roller, the forming roller and the second pressure roller and wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the second groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove part, at this time, the front surface of the first material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first material is conveyed from the first material roller to the first winding roller, in the conveying process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form the first lower film layer, and the forming roller forms a plurality of second groove parts on the surface of the first lower film layer, so as to obtain the second soft film; S4: using the third device, the second soft film is sleeved on the fifth pressure roller and several fourth tension rollers as the fifth raw material, the end of the first film piece obtained in S2 stage is drawn out from the fourth raw material roller, passes through the gap between the sixth pressure roller and the fifth pressure roller, and is then wound into the third winding roller after being introduced into the second UV curing device, and the UV glue is added between the sixth pressure roller and the fifth pressure roller, because the second soft film is pressed on the second raw material from the fifth pressure roller to the outlet of the second UV curing device, the second groove part is transferred to the UV glue layer on the first film piece, and is cured at the second UV curing device, so that the first film piece with the first upper film layer of the first groove part and the second groove part of the first lower film layer is obtained; S5: using the first device, the new first raw material originally wound on the first raw material roller is wound on the first winding roller after passing through the first pressure roller, the forming roller and the second pressure roller in sequence, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove part, and the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove part, at this time, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first raw material is conveyed from the first raw material roller to the first winding roller, and the UV glue is cured by using the UV light source in the conveying process, the UV glue is gradually cured to form the second upper film layer, and the forming roller forms several first groove parts on the surface of the second upper film layer, so that the third soft film is obtained; S6: using the third device, the third soft film is sleeved on the fifth pressure roller and several fourth tension rollers as the fifth raw material, one end of the fourth raw material is drawn out from the fourth raw material roller, passes through the gap between the sixth pressure roller and the fifth pressure roller, and is then wound into the third winding roller after being introduced into the second UV curing device, and the UV glue is added between the sixth pressure roller and the fifth pressure roller, because the first soft film is pressed on the second raw material from the fifth pressure roller to the outlet of the second UV curing device, the first groove part is transferred to the UV glue layer on the fourth raw material, and is cured at the second UV curing device, so that the second film piece with the first groove part of the second upper film layer is obtained; S7: using the second device, winding one end of the first film piece of the finished product stage on the second raw material roller as the second raw material, the second raw material sequentially passes through the gap between the third pressure roller and the fourth pressure roller, and then is wound on the second winding roller through the first UV curing device, the second raw material is horizontally conveyed during transportation, UV glue is poured on the second raw material between the second raw material roller and the third pressure roller, and one end of the second film piece manufactured in the S6 step is wound on the second raw material roller as the third raw material, the third raw material sequentially passes through the gap between the third pressure roller and the fourth pressure roller, and then is wound on the second winding roller through the first UV curing device, the second raw material and the third raw material are attached at the gap between the third pressure roller and the fourth pressure roller, and are cured as a whole in the first UV curing device to form the first stage of the light uniformization film, at this time, the first lower film layer of the first film piece is attached to the second upper film layer of the second film piece; S8: using the first device, the new first raw material originally wound on the first raw material roller sequentially passes through the first pressure roller, the forming roller, the second pressure roller, and is wound on the first winding roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the second groove part, and the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove part, at this time, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first pressure roller and the forming roller according to the preset parameters by using manpower or mechanical equipment, the driving member drives the first winding roller to rotate, the first raw material is transported from the first raw material roller to the first winding roller, and in the transportation process, the UV glue is cured by using the UV light source, the UV glue is gradually cured to form the second lower film layer, and the forming roller forms a plurality of second groove parts on the surface of the second lower film layer, thereby obtaining the fourth soft film; S9: using the third device, the fourth soft film is sleeved on the fifth pressure roller and a plurality of fourth tension rollers as the fifth raw material, one end of the first stage of the light uniformization film obtained in the S7 stage is introduced from the fourth raw material roller, passes through the gap between the sixth pressure roller and the fifth pressure roller, is introduced into the second UV curing device, and is wound into the third winding roller, and UV glue is added between the sixth pressure roller and the fifth pressure roller, since the fourth soft film is pressed on the light uniformization film from the fifth pressure roller to the outlet of the second UV curing device, the second groove part is transferred to the UV glue layer on the light uniformization film, is cured at the second UV curing device, and thereby the finished product of the light uniformization film is obtained.

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