An inverse prism composite prism film and a manufacturing system and manufacturing method thereof

Abstract

The application discloses a reverse edge composite prism film and a manufacturing system and method thereof, and the prism film comprises a first film piece, a second film piece and a third film piece, wherein the first film piece comprises a first base, 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 second film piece comprises a second base, a second upper film layer and a second lower film layer; the third film piece comprises a third base, a third upper film layer and a third lower film layer; wherein the first upper film layer, the second upper film layer and the third lower film layer each comprise a first main body part and a first groove part; the first lower film layer, the second lower film layer and the third upper film layer comprise a second main body part and a second groove part. 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, and compared with a conventional lower diffusion + POP prism, the reverse edge composite prism film has higher brightness.

Description

TECHNICAL FIELD

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

[0002] The light homogenizing film is mainly used between a light source and a display screen, the light source is a plurality of point light sources, the light homogenizing film is used to homogenize the light of the plurality of point light sources, so that the light is 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, but in the prior art, some display screens may still have light points with relatively strong light intensity and insufficient light homogenization, and the light homogenization effect still needs to be improved.

[0003] At the same time, when the light homogenizing film is manufactured, a solvent type thermosetting resin is used, there is a serious environmental problem, a large amount of odor is generated during the drying process of the solvent, 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 present application aims to provide a reverse-prism composite prism film and a manufacturing system and method thereof to solve the technical problems in the prior art.

[0005] The present application provides a reverse-prism composite prism 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] A third film piece comprises a third base, a third upper film layer and a third lower film layer, the third upper film layer is located on the upper surface of the third base, and the third lower film layer is located on the lower surface of the third base;

[0009] Wherein:

[0010] The first upper film layer, the second upper film layer and the third lower film layer all 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 arranged in an array, and the extension direction of the first groove part at the third lower film layer is opposite to the extension direction of the first groove part of the first upper film layer and the second upper film layer;

[0011] The first lower film layer, the second lower film layer and the third upper film layer comprise a second main body part and a second groove part, a plurality of the second groove parts are recessed on the surface of the second main body part, the plurality of the second groove parts are irregularly distributed, and the structure and depth of each of the second groove parts are different.

[0012] The inverse prism composite prism film as described above, preferably, the groove surface of the first groove part comprises a prism structure, the prism structure of the first upper film layer and the second upper film layer extends upward, and the prism structure of the third lower film layer extends downward.

[0013] The inverse prism composite prism film as described above, preferably, the groove surface of the second groove part comprises a curved surface structure.

[0014] The application further provides a prism film manufacturing system for manufacturing the light homogenizing film as described above, comprising a first device and a second device, wherein:

[0015] 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 part or the second groove part, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove part or the second groove part, the UV light source is located below the forming roller, and a plurality of the first tension rollers are used to support the continuous tension control of the first raw material.

[0016] 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 or fourth raw material sent out by the second raw material roller and the third raw material or fifth raw material sent out by the third raw material roller are laminated in the preset gap between the third compression roller and the fourth compression roller, the laminated second raw material and the third raw material or fourth raw material and the fifth raw material are wound on the second winding roller after being cured by the first UV curing device, and a plurality of the second tension rollers are used to support the continuous tension control of the second raw material and / or the third raw material.

[0017] The prism film manufacturing system as described above, preferably further comprising a third device, the third device comprising 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:

[0018] The fourth raw material roller, the fifth compression roller, and the third winding roller are sequentially arranged along a sixth 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 sixth 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, a plurality of third tension rollers are distributed on the feeding path of the sixth raw material, and the plurality of third tension rollers are used to support the continuous tension control of the sixth raw material;

[0019] The sixth compression roller is pressed against the fifth compression roller, the sixth compression roller and the plurality of fourth tension rollers support a seventh raw material, the sixth raw material and the seventh raw material are clamped between the fifth compression roller and the sixth compression roller, the seventh raw material extends into the second UV curing device from the gap between the fifth compression roller and the sixth compression roller and is attached to the sixth raw material, and after passing through the second UV curing device together with the sixth raw material, the seventh raw material is separated from the sixth raw material.

[0020] The prism film manufacturing system as described above, preferably further comprising a third device, the third device comprising 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:

[0021] 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, 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 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, 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 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 at the first stage;

[0022] 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;

[0023] 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;

[0024] 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 first stage of the uniform light film, at this time the first lower film layer of the first film is attached to the second upper film layer of the second film;

[0025] S5: using the first device, the first stage of the light uniformization film on the second winding roller is turned and placed on the 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 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 pressure roller, the forming roller and the second pressure 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 a second stage of the light uniformization film;

[0026] S6: using the first device, the new first raw material wound on the first raw material roller passes through the first pressure roller, the forming roller and the second pressure 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, the outer profile surface of the protrusions is adapted to the inner profile surface of the second 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, in the transportation process, the UV light source is used to cure the UV glue, the UV glue is gradually cured to form a third upper film layer, and at the same time the forming roller forms a plurality of second groove parts on the surface of the third upper film layer, thereby obtaining a first stage of the third film sheet;

[0027] S7: using the second device, one end of the second stage of the light uniformization film is wound on the second raw material roller to serve as the fourth 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 fourth raw material is horizontally transported in the transportation process, the UV glue is poured on the fourth raw material between the second raw material roller and the third pressure roller, at the same time one end of the first stage of the third film sheet is wound on the second raw material roller to serve as the fifth raw material, the fifth 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 fourth raw material and the fifth raw material are attached at the gap between the third pressure roller and the fourth pressure roller and are cured into one body in the first UV curing device to form a third stage of the light uniformization film;

[0028] S8: using the first device, the third 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 first groove part, the outer profile surface of the protrusions is adapted to the inner profile surface of the first groove part, the third 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 third lower film layer, and at the same time, the forming roller forms a plurality of first groove parts on the surface of the third lower film layer, thereby obtaining the finished light uniformization film.

[0029] The application also provides a prism film manufacturing method, which uses the prism film manufacturing system to manufacture the prism film, and includes the following steps:

[0030] 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, the 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 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 the first soft film;

[0031] S2: using the third device, the first soft film is sleeved on the fifth compression roller and a plurality of fourth tension rollers, and is used as the seventh raw material, one end of the sixth 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 the 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 the first film sheet with the first upper film layer and the first groove part;

[0032] 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 profile surface of the protrusions is adapted to the inner profile 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;

[0033] 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 seventh material, the first film piece obtained in the S2 stage is turned over and one end thereof is led out 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, 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 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, 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;

[0034] 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 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 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;

[0035] S6: Using the third device, the third soft film is placed on the fifth pressure roller and several fourth tension rollers as the seventh raw material. One end of the sixth raw material is led out from the fourth raw material roller, passed through the gap between the sixth and fifth pressure rollers, and then introduced into the second UV curing device and wound into the third take-up roller. UV adhesive is added between the sixth and fifth pressure rollers. Since 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 is transferred to the UV adhesive layer on the fourth raw material and cured at the second UV curing device, thereby obtaining a second film with a first groove having a second upper film layer.

[0036] S7: Using the second device, one end of the first film in the finished product stage is wound onto the second raw material roller to serve as the second raw material. The second raw material passes through the gap between the third and fourth pressure rollers in sequence, and then is wound onto the second take-up roller through the first UV curing device. The second raw material is conveyed horizontally during the conveying process. UV adhesive is poured onto the second raw material between the second raw material roller and the third pressure roller. At the same time, one end of the second film manufactured in step S6 is wound onto the second raw material roller to serve as the third raw material. The third raw material passes through the gap between the third and fourth pressure rollers in sequence, and then is wound onto the second take-up roller through the first UV curing device. The second raw material and the third raw material are bonded together at the gap between the third and fourth pressure rollers and cured into one piece in the first UV curing device to form the first stage uniform light film. At this time, the first lower film layer of the first film is bonded to the second upper film layer of the second film.

[0037] S8: Using the first device, the new first raw material originally wound on the first raw material roller passes through the first pressure roller, the forming roller, and the second pressure roller in sequence and is then wound onto the first take-up roller. The distribution of the protrusions on the forming roller is adapted to the distribution of the second groove, and the outer contour surface of the protrusion is adapted to the inner contour surface of the second groove. At this time, the front surface of the first raw material is attached to the forming roller. Using manual or mechanical equipment, liquid UV adhesive is poured between the first pressure roller and the forming roller according to preset parameters. The driving component drives the first take-up roller to rotate, and the first raw material is conveyed from the first raw material roller to the first take-up roller. During the conveying process, UV adhesive is cured using a UV light source. The UV adhesive gradually cures to form a second lower film layer. At the same time, the forming roller forms several second grooves on the surface of the second lower film layer, thereby obtaining a fourth soft film.

[0038] 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 seventh raw material, the first stage of the light uniform film obtained in S7 is turned over and one end 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 introduced into the second UV curing device and wound into the third winding roller, and UV glue is added between the sixth pressure roller and the fifth pressure roller, because the fourth soft film is pressed on the light uniform film from the fifth pressure 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 uniform film, and the second UV curing device is obtained. Curing, thereby obtaining the second stage of the light uniform film;

[0039] S10: 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 turn, 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, and 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 third upper film layer, and the forming roller forms a plurality of second groove parts on the surface of the third upper film layer, thereby obtaining a fifth soft film.

[0040] S11: using the third device, the fifth soft film is sleeved on the fifth pressure roller and a plurality of fourth tension rollers, as the seventh raw material, one end of the sixth 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 introduced into the second UV curing device and wound into the third winding roller, and 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, so as to transfer the first groove part to the UV glue layer on the fourth raw material, and the second UV curing device is obtained. Curing, thereby obtaining the third film piece with the first groove part of the third upper film layer;

[0041] S12: using the second device, winding one end of the first film sheet of the finished product stage on the second raw material roller as the fourth raw material, the second raw material passing through the gap between the third pressure roller and the fourth pressure roller in turn and then being wound on the second winding roller by the first UV curing device, the second raw material being horizontally conveyed during the conveying process, pouring UV glue on the fourth raw material between the second raw material roller and the third pressure roller, and winding one end of the third film sheet manufactured in the S7 step on the second raw material roller as the fifth raw material, the fifth raw material passing through the gap between the third pressure roller and the fourth pressure roller in turn and then being wound on the second winding roller by the first UV curing device, the fourth raw material and the fifth raw material being attached at the gap between the third pressure roller and the fourth pressure roller and being cured into one body in the first UV curing device to form the light uniformizing film of the third stage;

[0042] S13: using the first device, winding the new first raw material originally wound on the first raw material roller 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 being adapted to the distribution of the first groove portions, the outer profile surface of the protrusions being adapted to the inner profile surface of the first groove portions, at this time, the front surface of the first raw material being attached to the forming roller, pouring liquid UV glue according to preset parameters between the first pressure roller and the forming roller by using manpower or mechanical equipment, driving the first winding roller to rotate by the driving member, the first raw material being conveyed from the first raw material roller to the first winding roller, during the conveying process, curing the UV glue by using the UV light source, the UV glue being gradually cured to form the third lower film layer, and the forming roller forming a plurality of first groove portions on the surface of the third lower film layer, so as to obtain the sixth soft film;

[0043] S14: using the third device, sleeving the sixth soft film on the fifth pressure roller and a plurality of fourth tension rollers as the seventh raw material, leading out one end of the light uniformizing film of the first stage obtained in the S12 stage from the fourth raw material roller, passing through the gap between the sixth pressure roller and the fifth pressure roller, and then being wound into the third winding roller after entering the second UV curing device, adding UV glue between the sixth pressure roller and the fifth pressure roller, transferring the second groove portions to the UV glue layer on the light uniformizing film since the sixth soft film is pressed on the light uniformizing film from the fifth pressure roller to the outlet of the second UV curing device, and being cured at the second UV curing device, so as to obtain the light uniformizing film of the finished product stage.

[0044] Compared with the prior art, the present application 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, the extension direction of the first groove part of the back surface of the third substrate is opposite to the extension direction of the first groove part of the first upper film layer and the second upper film layer, that is, the prism surface faces the light guide plate, the lower diffusion sheet of the conventional backlight module is replaced, the brightness of the backlight module can be improved by about 10%, the customer end module assembly is facilitated, the number of light uniformity films is reduced from multiple to one, the failure rate caused by dirt, scratches and the like during film assembly is reduced, the total thickness can be reduced, the solvent-free UV glue curing molding roller molding technology is used, the energy saving and environmental protection are better, the space utilization rate of the production equipment is high, and the production speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a structure diagram of the light uniformity film provided by the embodiment of the present application Figure 1 ;

[0046] Figure 2 is a structure diagram of the light uniformity film provided by the embodiment of the present application Figure 2 ;

[0047] Figure 3 is a SEM diagram of the second groove part of the light uniformity film provided by the embodiment of the present application

[0048] Figure 4 is a SEM diagram of the first groove part of the light uniformity film provided by the embodiment of the present application

[0049] Figure 5 is a structure diagram of the first device provided by the first embodiment of the present application

[0050] Figure 6 is a structure diagram of the second device provided by the first embodiment of the present application

[0051] Figure 7 is a structure diagram of the molding roller with the first type of protrusions of the prism film manufacturing system provided by the first embodiment of the present application

[0052] Figure 8 is a structure diagram of the molding roller with the second type of protrusions of the prism film manufacturing system provided by the first embodiment of the present application

[0053] Figure 9 is a structure diagram of the third device provided by the second embodiment of the present application

[0054] BRIEF DESCRIPTION OF DRAWINGS

[0055] 100-Uniform light film, 101-First film, 102-First substrate, 103-First upper film layer, 104-First lower film layer, 105-Second film, 106-Second substrate, 107-Second upper film layer, 108-Second lower film layer, 109-First main body, 110-First groove, 111-Second main body, 112-Second groove, 117-Third film, 118-Third substrate, 119-Third upper film layer, 120-Third lower film layer;

[0056] 200 - First equipment, 201 - First raw material roller, 202 - First pressure roller, 203 - Forming roller, 204 - Second pressure roller, 205 - First take-up roller, 206 - Protrusion, 207 - UV light source, 208 - First tension roller;

[0057] 300 - Second equipment, 301 - First UV curing equipment, 302 - Second raw material roller, 303 - Third raw material roller, 304 - Third pressure roller, 305 - Fourth pressure roller, 306 - Second tension roller, 307 - Second take-up roller;

[0058] 400 - Third equipment, 401 - Fourth raw material roller, 402 - Fifth pressure roller, 403 - Third take-up roller, 404 - Sixth pressure roller, 405 - Third tension roller, 406 - Fourth tension roller, 407 - Second UV curing device. Detailed Implementation

[0059] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0060] In the prior art, an LCD display module includes a display screen and a backlight. The backlight emits light and forms an image on the display screen. The backlight includes several point light sources. If the point light sources are directly projected onto the display screen, it will cause uneven light and dark in the image formed by the display screen, affecting the visual effect of the image. Therefore, a light-diffusing film 100 is usually installed between the backlight and the display screen to dilute the light from the point light sources. The light-diffusing film 100 transforms the light from the point light sources into light from the surface light sources. The light intensity distribution of the surface light sources is more dispersed than that of the point light sources, and the visual effect of the image formed by the display screen is also better. However, in the prior art, some displays may still have bright spots with strong light intensity and insufficient light diffusing. The light diffusing effect of the light-diffusing film 100 still needs to be improved.

[0061] like Figure 1 as well as Figure 2 As shown, an embodiment of the present invention provides a reverse prism composite prism film 100, comprising:

[0062] The first diaphragm 101 comprises a first substrate 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 substrate 102, and the first lower film layer 104 is located on the lower surface of the first substrate 102. The upper surface and the lower surface are oppositely arranged along a first direction. In the embodiments provided in the present application, the first direction is the normal direction of the display screen. The first substrate 102 can adopt a transparent substrate such as an optical-grade PET or PC film with a surface subjected to chemical treatment. 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 here. When the value exceeds this range, the first substrate 102 is too thick, the light transmittance is reduced, the light intensity is affected, and the first substrate 102 is too thin, the strength is insufficient, it is easy to bend, and it also affects the light passing through.

[0063] The second diaphragm 105 comprises a second substrate 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 substrate 106, and the second lower film layer 108 is located on the lower surface of the second substrate 106. The second substrate 106 can adopt a transparent substrate such as an optical-grade PET or PC film with a surface subjected to chemical treatment. 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 here. When the value exceeds this range, the second substrate 106 is too thick, the light transmittance is reduced, the light intensity is affected, and the second substrate 106 is too thin, the strength is insufficient, it is easy to bend, and it also affects the light passing through.

[0064] The third diaphragm 117 comprises a third substrate 118, a third upper film layer 119 and a third lower film layer 120. The third upper film layer 119 is located on the upper surface of the third substrate 118, and the third lower film layer 120 is located on the lower surface of the third substrate 118. The third substrate 118 can adopt a transparent substrate such as an optical-grade PET or PC film with a surface subjected to chemical treatment. 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 here. When the value exceeds this range, the third substrate 118 is too thick, the light transmittance is reduced, the light intensity is affected, and the third substrate 118 is too thin, the strength is insufficient, it is easy to bend, and it also affects the light passing through.

[0065] The first upper film layer 103, the second upper film layer 107 and the third lower film layer 120 each include a first main body part 109 and a first groove part 110, as shown in 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, and the plurality of first groove parts 110 are arranged in an array, as shown in Figure 5 As shown in the figure, the groove surface of the first groove part 110 includes a prism structure. The prism structure limits the range of the exit angle of the light rays by using the principle of tapered collimation, thereby improving the collimation effect of the light rays, so that more dispersed light spots can be formed on the display screen, and the light intensity at each place of the projection surface is more uniform, and the light uniformity effect is better.

[0066] The extension direction of the first groove part 110 at the third lower film layer 120 is opposite to the extension direction of the first groove part of the first upper film layer 103 and the second upper film layer 107, the prism structure of the first upper film layer 103 and the second upper film layer 107 extends upward, and the prism structure of the third lower film layer 120 extends downward. That is, the prism structure of the first upper film layer 103 and the second upper film layer 107 is a positive pyramid, and the prism structure of the third lower film layer 120 is an inverse pyramid structure, that is, the prism surface faces the light guide plate, instead of the conventional lower diffusion sheet of the backlight module, which can improve the brightness of the backlight module by about 10%.

[0067] The first lower film layer 104, the second lower film layer 108 and the third upper film layer 119 include 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 irregularly distributed, the structure and depth of each second groove part 112 are different, the structure and depth of each second groove part 112 are different, the groove surface of the second groove part 112 includes an arc surface structure, the shape of the arc surface structure of each second groove part 112 is different, and there is also a case, as shown in Figure 2 As shown in the figure, the recessed structure of the second groove part 112 is formed by a protrusion protruding from the surface of the second main body part 109, and the structure and function thereof can be referred to the foregoing content, as shown in Figure 3 thereby forming a high-haze fog surface shape on the surface of the second main body part 111, the haze is the percentage of the transmitted light intensity deviating from the incident light by 2.5° or more in the total transmitted light intensity, the higher the haze of the light uniformity film 100, the more the light rays diffuse after passing through the light uniformity film 100, and the better the light uniformity effect, in this embodiment, by forming irregular arc recesses on the surface of the second main body part 109, the haze of the fog surface shape is between 5% and 99%, including the end point value.

[0068] Compared with the prior art, the present application 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 is better, the extension direction of the first groove part 110 of the back surface of the third substrate 118 is opposite to the extension direction of the first groove part 110 of the first upper film layer 103 and the second upper film layer 107, that is, the prism surface faces the light guide plate, which replaces the lower diffusion sheet of the conventional backlight module, can improve the brightness of the backlight module by about 10%, and is convenient for customer end module assembly, reduces the number of light uniformity films 100 from multiple to one, reduces the failure rate caused by dirt, scratches and the like during film assembly, and can reduce the total thickness.

[0069] In the prior art, when the light uniformity film 100 is manufactured, solvent type thermosetting resin is used, which has serious environmental problems. 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, the production speed is 15-20 m / min, and the production efficiency is low.

[0070] Embodiment one

[0071] To solve the above technical problems, while manufacturing the light uniformity film 100 mentioned in the above embodiments, the present application also provides a light uniformity film 100 manufacturing system for manufacturing the aforementioned light uniformity film 100, which comprises a first device 200 and a second device 300, wherein:

[0072] Referring to Figure 5 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 the 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, and a predetermined 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, and the outer contour surface of the protrusions 206 is adapted to the inner contour 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 and provide continuous tension control of the first raw material.

[0073] Above the area between the first pressure roller 202 and the forming roller 203, a feeding platform (not shown) is provided for supplying UV adhesive. The UV adhesive is supplied between the first pressure roller 202 and the forming roller 203. The substrate continues to feed and is held by the first pressure roller 202 and the forming roller 203. During this process, the UV adhesive is squeezed by the protrusions 206 on the forming roller 203 to form grooves, thereby forming the first groove 110 or the second groove 112. The UV light source 207 provides curing during this process. The use of solvent-free UV adhesive curing combined with the forming roller 203 molding technology is more energy-efficient and environmentally friendly. Compared with the prior art, the equipment provided in this application is 11m long, which makes the space utilization of the production equipment large, the production speed is 10-20m / min, and the production efficiency is improved.

[0074] 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.

[0075] Reference Figure 6 As shown, the second device 300 includes a first UV curing device 301, a second material roller 302, a third material roller 303, a third pressure roller 304, a fourth pressure roller 305, a second tension roller 306, and a second take-up roller 307. The second take-up roller 307 is located at the outlet end of the UV curing device, and the third pressure roller 304 and the fourth pressure roller 305 are located at the inlet end of the UV curing device. A preset gap is formed between the third pressure roller 304 and the fourth pressure roller 305. The second or fourth material fed by the second material roller 302 and the third or fifth material fed by the third material roller 303 are bonded together within the preset gap between the third pressure roller 304 and the fourth pressure roller 305. After the bonded second material, the third or fourth material, and the fifth material are cured by the first UV curing device 301, they are wound up by the second take-up roller 307. A plurality of second tension rollers 306 are used to support and provide continuous tension control for the second material and / or the third material.

[0076] The first compression roller 202, the forming roller 203, the second compression roller 204 and the first winding roller 205 are driven to rotate by a driving mechanism, so that the substrate can be wound over the first compression roller 202, the forming roller 203 and the second compression roller 204 in turn and then wound on the first winding roller 205. A plurality of tension rollers are arranged on the material conveying 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. A predetermined 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 predetermined gap matches the thickness of the substrate. The first compression roller 202 and the second compression roller 204 are smooth rollers. The surface of the forming roller 203 is provided with a plurality of protrusions 206. As shown in FIGS. 10, 11 and 12, the distribution of the protrusions 206 matches the distribution of the first groove portion 110 or the second groove portion 112, and the outer profile surface of the protrusions 206 matches the inner profile surface of the first groove portion 110 or the second groove portion 112. Figure 7 and Figure 8 The surface of the forming roller 203 is provided with a plurality of protrusions 206. As shown in FIGS. 10, 11 and 12, the distribution of the protrusions 206 matches the distribution of the first groove portion 110 or the second groove portion 112, and the outer profile surface of the protrusions 206 matches the inner profile surface of the first groove portion 110 or the second groove portion 112.

[0077] In the embodiments provided in the present application, a UV light source 207 is also included. The UV light source 207 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 arranged to provide UV glue. The UV glue is provided between the first compression roller 202 and the forming roller 203. The substrate continuously moves 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 effect during 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, thereby improving the production efficiency.

[0078] In a possible implementation, the UV glue includes a mixture of 50-60% by mass fraction of acrylate monomer, 40-50% by mass fraction of acrylate oligomer and 1-5% of light initiator and other additives. The use of such high-transmittance UV glue and the like has good forming degree and good light transmittance, which can ensure the light flux.

[0079] Based on the light homogenizing film 100 manufacturing system, the present embodiment also provides a light homogenizing film 100 manufacturing method, which includes the following steps:

[0080] S1: using the first device 200, the first material originally wound on the first material roller 201 is wound on the first winding roller 205 after passing through the first compression roller 202, the forming roller 203 and the second compression roller 204 in turn, 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 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 process of transportation, the UV light source 207 is used to cure the UV glue, the UV glue is gradually cured to form the first upper film layer 103, and the forming roller 203 forms a plurality of first groove parts 110 on the surface of the first upper film layer 103, so as to obtain the first film piece 101 in the first stage;

[0081] S2: using the first device 200, the first stage first film piece 101 on the first winding roller 205 is turned over and placed on the first material roller 201, and the forming roller 203 is replaced, the distribution of the protrusions 206 on the forming roller 203 in this stage is adapted to the distribution of the second groove part 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove part 112, the first stage first film piece 101 passes through the first compression roller 202, the forming roller 203 and the second compression roller 204 in turn and is wound on the first winding roller 205, at this time, the back surface of the first film piece 101 is attached to the forming roller 203, the driving member drives the first winding roller 205 to rotate, the first film piece 101 is transported from the first material roller 201 to the first winding roller 205, in the process of transportation, 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 first film piece 101 in the finished stage;

[0082] 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 that the second film piece 105 in the first stage is obtained;

[0083] 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;

[0084] 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 in 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 compression roller 202, the forming roller 203 and the second compression 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, 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 to cure the UV glue, the UV glue is gradually cured to form the second lower film layer 108, 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 second stage of the light uniformity film 100;

[0085] S6: using the first device 200, the new first raw material wound on the first raw material roller 201 passes through the first compression roller 202, the forming roller 203 and the second compression roller 204 in turn 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, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove part 112, 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 raw 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 third upper film layer 119, at the same time the forming roller 203 forms a plurality of second groove parts 112 on the surface of the third upper film layer 119, thereby obtaining the first stage of the third film piece 117;

[0086] S7: using the second device 300, winding one end of the first film sheet 101 of the finished product stage on the second raw material roller 302 as the fourth raw material, the fourth raw material sequentially passes through the gap between the third compression roller 304 and the fourth compression roller 305, and then is wound on the second winding roller 307 through the first UV curing device, the fourth raw material is horizontally conveyed during the conveying process, the UV glue is poured on the fourth raw material between the second raw material roller 302 and the third compression roller 304, and one end of the second film sheet 105 of the first stage is wound on the second raw material roller 302 as the fifth raw material, the fifth raw material sequentially passes through the gap between the third compression roller 304 and the fourth compression roller 305, and then is wound on the second winding roller 307 through the first UV curing device, the fourth raw material and the fifth raw material are attached at the gap between the third compression roller 304 and the fourth compression roller 305, and are cured as a whole in the first UV curing device 301 to form the light uniformizing film 100 of the third stage;

[0087] S8: using the first device 200, turning over the light uniformizing film 100 of the first stage on the second winding roller 307 and placing it on the first raw material roller 201, and replacing the forming roller 203, the distribution of the protrusions 206 on the forming roller 203 of this stage 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, the light uniformizing film 100 of the third stage sequentially passes through the first compression roller 202, the forming roller 203, and the second compression roller 204, and is wound on the first winding roller 205, at this time, the back surface of the second film sheet 105 is attached to the forming roller 203, the driving member drives the first winding roller 205 to rotate, the light uniformizing film 100 is conveyed from the first raw material roller 201 to the first winding roller 205, and 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 third lower film layer 120, and the forming roller 203 forms a plurality of first groove parts 110 on the surface of the third lower film layer 120, thereby obtaining the light uniformizing film 100 of the finished product stage.

[0088] The light uniformizing film 100 manufactured by using 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 uniformizing effect is better, 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.

[0089] Example Two

[0090] The difference between this embodiment and Example One is that a third device 400 is additionally provided, as shown in Figure 9 The third device 400 includes a fourth raw material roller 401, a fifth compression roller 402, a third winding roller 403, a sixth compression roller 404, a third tension roller 405, a fourth tension roller 406, and a second UV curing device 407, wherein:

[0091] The fourth material roller 401, the fifth pressure roller 402 and the third winding roller 403 are sequentially arranged along a sixth 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 sixth material is connected to the fourth material roller 401, and the other end is sequentially wound on the third winding roller 403 through the fifth pressure roller 402 and the second UV curing device 407, and a plurality of third tension rollers 405 are distributed on the material feeding path of the sixth material, and the plurality of third tension rollers 405 are used to support the continuous tension control of the sixth material;

[0092] The sixth pressure roller 404 abuts against the fifth pressure roller 402, the sixth pressure roller 404 and the plurality of fourth tension rollers 406 support a seventh material, the sixth material and the seventh material are clamped between the fifth pressure roller 402 and the sixth pressure roller 404, the seventh material extends into the second UV curing device 407 from the gap between the fifth pressure roller 402 and the sixth pressure roller 404 and is attached to the sixth material, and after passing through the second UV curing device together with the sixth material, the seventh material is separated from the sixth material.

[0093] 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:

[0094] S1: using the first device 200, the first material originally wound on the first material roller 201 is sequentially wound on the first winding roller 205 through the first pressure roller 202, the forming roller 203 and the second pressure roller 204, 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 material is attached to the forming roller 203, 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 material is conveyed from the first 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 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, so as to obtain the first soft film;

[0095] S2: using the third device 400, the first soft film is sleeved on the fifth pressure roller 402 and several fourth tension rollers 406, as the seventh raw material, one end of the sixth 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 wound into the third winding roller 403, and UV glue is added between the sixth pressure roller 404 and the fifth pressure roller 402, because 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, so that the first film piece 101 with the first upper film layer 103 of the first groove part 110 is obtained;

[0096] S3: using the first device 200, the new first raw material originally wound on the first raw material roller 201 is sequentially wound on the first winding roller 205 after passing through the first pressure roller 202, the forming roller 203 and the second pressure roller 204, 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 contour surface of the protrusions 206 is adapted to the inner contour 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, 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, and the UV glue is cured by using the UV light source 207 in the conveying process, the UV glue is gradually cured to form the first lower film layer 104, and at the same time, the forming roller 203 forms several second groove parts 112 on the surface of the first lower film layer 104, so that the second soft film is obtained;

[0097] S4: using the third device 400, the second soft film is sleeved on the fifth pressure roller 402 and several fourth tension rollers 406, as the seventh raw material, one end of the first film piece 101 obtained in the S2 stage 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, 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, because the second 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 second groove part 112 is transferred to the UV glue layer on the first film piece 101, and is cured at the second UV curing device 407, so that the first film piece 101 with the first upper film layer 103 of the first groove part 110 and the second groove part 112 of the first lower film layer 104 is obtained;

[0098] S5: using the first device 200, the new first material originally wound on the first material roller 201 is wound on the first winding roller 205 after passing through the first compression roller 202, the forming roller 203 and the second compression roller 204 in turn, 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 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, and 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 a third soft film;

[0099] S6: using the third device 400, the third soft film is sleeved on the fifth compression roller 402 and a plurality of fourth tension rollers 406, and is taken as the seventh material, one end of the sixth material is led out from the fourth 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 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 material, is cured at the second UV curing device 407, and thus a second film piece 105 with the first groove part 110 of the second upper film layer 107 is obtained;

[0100] S7: using the second device 300, one end of the first film piece 101 in the finished product stage is wound on the second material roller 302 to serve as the second material, the second material passes through the gap between the third compression roller 304 and the fourth compression roller 305 in turn, and then is wound on the second winding roller 307 through 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, one end of the second film piece 105 manufactured in the S6 step is wound on the second material roller 302 to serve as the third material, the third material passes through the gap between the third compression roller 304 and the fourth compression roller 305 in turn, and then is wound on the second winding roller 307 through the first UV curing device, the second material and the third material are attached at 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 first stage light uniformization 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;

[0101] S8: Using the first device 200, the new 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 second grooves 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second grooves 112. 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 adhesive 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 adhesive is cured using the UV light source 207. The UV adhesive is gradually cured to form the second lower film layer 108. At the same time, the forming roller 203 forms a number of second grooves 112 on the surface of the second lower film layer 108, thereby obtaining the fourth soft film.

[0102] S9: Using the third device 400, the fourth soft film is placed on the fifth pressure roller 402 and several fourth tension rollers 406 as the seventh raw material. One end of the first stage uniform light film 100 obtained in stage S7 is flipped out from the fourth raw material roller 401, passed through the gap between the sixth pressure roller 404 and the fifth pressure roller 402, and then introduced into the second UV curing device 407 and wound into the third take-up roller 403. UV adhesive is added between the sixth pressure roller 404 and the fifth pressure roller 402. Since the fourth soft film is pressed on the uniform light film 100 from the fifth pressure roller 402 to the outlet of the second UV curing device 407, the second groove 112 is transferred to the UV adhesive layer on the uniform light film 100 and cured at the second UV curing device 407, thereby obtaining the second stage uniform light film 100.

[0103] S10: Using the first device 200, the new 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 second grooves 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second grooves 112. 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 adhesive 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 adhesive is cured using the UV light source 207. The UV adhesive is gradually cured to form the third upper film layer 119. At the same time, the forming roller 203 forms a number of second grooves 12 on the surface of the third upper film layer 119, thereby obtaining the fifth soft film.

[0104] S11: using the third device 400, the fifth soft film sleeve is set on the fifth compression roller 402 and several fourth tension rollers 406, as the seventh raw material, one end of the sixth raw material 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 then is introduced into the second UV curing device 407 and wound into the third winding roller 403. UV glue is added between the sixth compression roller 404 and the fifth compression roller 402. Since the fifth 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 third film piece 117 with the third upper film layer 109 of the first groove part 110;

[0105] S12: 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 fourth raw material, which is sequentially conveyed through the gap between the third compression roller 304 and the fourth compression roller 305, and then is wound on the second winding roller 307 through the first UV curing device. The fourth raw material is horizontally conveyed during the conveying process. UV glue is poured on the fourth raw material between the second raw material roller 302 and the third compression 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 fifth raw material, which is sequentially conveyed through the gap between the third compression roller 304 and the fourth compression roller 305, and then is wound on the second winding roller 307 through the first UV curing device. The fourth raw material and the fifth raw material are bonded at the gap between the third compression roller 304 and the fourth compression roller 305, and are cured as a whole in the first UV curing device 301 to form the third stage of the light homogenizing film 100.

[0106] S13: 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 compression roller 202, the forming roller 203, the second compression roller 204, and then 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 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 bonded 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. During 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 first groove parts 110 on the surface of the third lower film layer 120, thereby obtaining the sixth soft film.

[0107] S14: using the third device 400, the sixth soft film sleeve is arranged on the fifth compression roller 402 and several fourth tension rollers 406, as the seventh raw material, the end of the third stage of the light uniformization film 100 obtained in S12 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 introduced into the second UV curing device 407 and 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 sixth 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 is cured at the second UV curing device 407, thereby obtaining the finished stage of the light uniformization film 100.

[0108] The light uniformization film 100 manufactured by the manufacturing method can form more dispersed spotlight 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 for forming the roller 203, the energy saving and environmental protection are better, the space utilization of the production equipment is high, and the production speed is improved.

[0109] 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, still within the scope of the present application.

Claims

1. A prism 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; a third film sheet comprising a third base, a third upper film layer and a third lower film layer, the third upper film layer being located on the upper surface of the third base, and the third lower film layer being located on the lower surface of the third base; wherein: the first upper film layer, the second upper film layer and the third lower film layer each comprise a first main body portion and a first groove portion, a plurality of the first groove portions being recessed on the surface of the first main body portion, and the plurality of the first groove portions being arranged in an array, the extension direction of the first groove portion at the third lower film layer being opposite to the extension direction of the first groove portion of the first upper film layer and the second upper film layer; the first lower film layer, the second lower film layer and the third upper film layer comprise a second main body portion and a second groove portion, a plurality of the second groove portions being recessed on the surface of the second main body portion, and the plurality of the second groove portions being irregularly arranged, the structure and depth of each of the second groove portions being different; 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, a plurality of protrusions being formed on the surface of the forming roller, the distribution of the protrusions being adapted to the distribution of the first groove portion or the second groove portion, the outer contour surface of the protrusions being adapted to the inner contour surface of the first groove portion or the second groove portion, the UV light source being located below the forming roller, and a plurality of the 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 or fourth raw material sent out by the second raw material roller and the third raw material or fifth raw material sent out by the third raw material roller being laminated in the preset gap between the third compression roller and the fourth compression roller, the laminated second raw material and the third raw material or fourth raw material and the fifth raw material being wound on the second winding roller after being cured by the first UV curing device, and a plurality of the second tension rollers being used to support the continuous tension control of the second raw material and / or the third raw material.

2. The prismatic film manufacturing system of claim 1, wherein, Further comprising a third device, the third device comprising 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 sixth 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 sixth 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 compression roller and the second UV curing device, a plurality of third tension rollers are distributed on the feeding path of the sixth raw material, and the plurality of third tension rollers are used to support the continuous tension control of the sixth 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 seventh raw material, the sixth raw material and the seventh raw material are clamped between the fifth compression roller and the sixth compression roller, the seventh raw material extends into the second UV curing device from the gap between the fifth compression roller and the sixth compression roller and is attached to the sixth raw material, and after passing through the second UV curing device together with the sixth raw material, the seventh raw material is separated from the sixth raw material.

3. A method for manufacturing a prism film using the prism film manufacturing system according to claim 2, wherein a light uniformizing film is manufactured. 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 after passing through 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 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 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 at a first stage; S2: using the first device, the first film piece at the first stage located on the first 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 portions, the outer contour surface of the protrusions is adapted to the inner contour surface of the second groove portions, the first film piece at the first stage is sequentially wound on the first winding roller after passing through 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 driving member drives the first winding roller to rotate, the first film piece 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 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 at 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 of the first stage is obtained; S4: using the second device, one end of the first film piece of the finished product 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 at the same time, one end of the second film piece of 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 of 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 first stage uniform light film 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 of 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 uniform light film 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 second stage uniform light film is obtained. S6: using the first device, the new first material wound on the first material roll is sequentially passed through the first compression roller, the forming roller, the second compression 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, the outer profile surface of the protrusions is adapted to the inner profile surface of the second 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 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 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 third upper film layer, and the forming roller forms a plurality of second groove parts on the surface of the third upper film layer, so that the third film piece of the first stage is obtained; S7: using the second device, one end of the second stage light uniformizing film is wound on the second material roll to serve as the fourth material, the third material is sequentially passed through the gap between the third compression roller and the fourth compression roller and is then wound on the second winding roller by the first UV curing device, the fourth material is conveyed horizontally in the conveying process, the UV glue is poured on the fourth material between the second material roll and the third compression roller, one end of the third film piece of the first stage is wound on the second material roll to serve as the fifth material, the fifth material is sequentially passed through the gap between the third compression roller and the fourth compression roller and is then wound on the second winding roller by the first UV curing device, the fourth material and the fifth material are attached at the gap between the third compression roller and the fourth compression roller and are integrated in the first UV curing device to form the third stage light uniformizing film; S8: using the first device, the third stage light uniformizing film on the second winding roller is turned over and is placed on the first material roll, and the forming roller is replaced, the distribution of the protrusions on the forming roller of this stage 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, the third stage light uniformizing film is sequentially passed through the first compression roller, the forming roller and the second compression roller and is 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 light uniformizing 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 third lower film layer, and the forming roller forms a plurality of first groove parts on the surface of the third lower film layer, so that the finished light uniformizing film is obtained.

4. A method of manufacturing a prismatic film using the prismatic film manufacturing system according to claim 2, 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 compression roller, the forming roller, the second compression 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 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 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 compression roller and a plurality of fourth tension rollers, as the seventh material, one end of the sixth material is led out from the fourth 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, the UV glue is added between the sixth compression roller and the fifth compression roller, since the first soft film is pressed on the second 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 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 compression roller, the forming roller and the second compression 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 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 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 a plurality of fourth tension rollers as the seventh raw material, one end of the first film piece obtained in the 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 UV glue is added between the sixth pressure roller and the fifth pressure roller, since 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 curing is obtained at the second UV curing device, thereby obtaining 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; 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, and 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 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, thereby obtaining the third soft film; S6: using the third device, the third soft film is sleeved on the fifth pressure roller and a plurality of fourth tension rollers as the seventh raw material, one end of the sixth 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 UV glue is added between the sixth pressure roller and the fifth pressure roller, since 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 curing is obtained at the second UV curing device, thereby obtaining the second film piece with the first groove part of the second upper film layer; S7: using the second device, winding one end of the first film piece of the finished stage on the second raw material roller as the second raw material, the second raw material passing through the gap between the third pressure roller and the fourth pressure roller in turn and then being wound on the second winding roller through the first UV curing device, the second raw material being horizontally conveyed during the conveying process, pouring UV glue on the second raw material between the second raw material roller and the third pressure roller, and winding one end of the second film piece manufactured in the S6 step on the second raw material roller as the third raw material, the third raw material passing through the gap between the third pressure roller and the fourth pressure roller in turn and then being wound on the second winding roller through the first UV curing device, the second raw material and the third raw material being attached at the gap between the third pressure roller and the fourth pressure roller and being cured as a whole in the first UV curing device to form the first-stage 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, winding the new first raw material originally wound on the first raw material roller on the first winding roller in turn through the first pressure roller, the forming roller, and the second pressure roller, the distribution of the protrusions on the forming roller being adapted to the distribution of the second groove portions, and the outer profile surface of the protrusions being adapted to the inner profile surface of the second 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 pressure 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 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 the second lower film layer, and the forming roller forms a plurality of second groove portions on the surface of the second lower film layer, thereby obtaining the fourth soft film; S9: using the third device, sleeving the fourth soft film on the fifth pressure roller and a plurality of fourth tension rollers as the seventh raw material, winding the end of the first-stage light uniformization film obtained in the S7 stage after being turned over from the fourth raw material roller, passing through the gap between the sixth pressure roller and the fifth pressure roller, and then being wound into the third winding roller after entering the second UV curing device, adding UV glue between the sixth pressure roller and the fifth pressure roller, transferring the second groove portions to the UV glue layer on the light uniformization film 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, and curing in the second UV curing device, thereby obtaining the second-stage light uniformization film; S10: using the first device, the new first material originally wound on the first material roll is sequentially passed through the first compression roller, the forming roller, the second compression 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 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 material 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 a third upper film layer, and the forming roller forms a plurality of second groove parts on the surface of the third upper film layer, thereby obtaining a fifth soft film; S11: using the third device, the fifth soft film is sleeved on the fifth compression roller and a plurality of fourth tension rollers, as the seventh material, one end of the sixth material is led out from the fourth material roll, passes through the gap between the sixth compression roller and the fifth compression roller, and is wound into the third winding roller after the second UV curing device, and the UV glue is added between the sixth compression roller and the fifth compression roller, since the first soft film is pressed on the second 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 material, and is cured at the second UV curing device, thereby obtaining a third film piece with a third upper film layer and a first groove part; S12: using the second device, one end of the first film piece in the finished product stage is wound on the second material roll to serve as the fourth material, the second material sequentially passes through the gap between the third compression roller and the fourth compression roller, and is then wound on the second winding roller by the first UV curing device, the second material is horizontally conveyed during the conveying process, the UV glue is poured on the fourth material between the second material roll and the third compression roller, and one end of the third film piece manufactured in the S7 step is wound on the second material roll to serve as the fifth material, the fifth material sequentially passes through the gap between the third compression roller and the fourth compression roller, and is then wound on the second winding roller by the first UV curing device, the fourth material and the fifth material are attached at the gap between the third compression roller and the fourth compression roller, and are integrated and cured in the first UV curing device to form a uniform light film in the third stage. S13: using the first device, the new first material originally wound on the first material roller is sequentially wound on the first winding roller through the first compression roller, the forming roller, the second compression roller, the distribution of the protrusions on the forming roller is adapted to the distribution of the first groove, the outer contour surface of the protrusions is adapted to the inner contour surface of the first groove, at this time the front surface of the first 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 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 third lower film layer, at the same time the forming roller forms a plurality of first grooves on the surface of the third lower film layer, thereby obtaining the sixth soft film; S14: using the third device, the sixth soft film is sleeved on the fifth compression roller and a plurality of fourth tension rollers, as the seventh material, one end of the first-stage light uniformization film obtained in the S12 stage is introduced from the fourth 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, UV glue is added between the sixth compression roller and the fifth compression roller, the sixth soft film is pressed on the light uniformization film from the fifth compression roller to the outlet of the second UV curing device, so that the second groove is transferred to the UV glue layer on the light uniformization film, is cured at the second UV curing device, and thereby the light uniformization film in the finished stage is obtained.

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