CN115542443A

CN115542443A - Reverse prism composite prism film and manufacturing system and manufacturing method thereof

Info

Publication number: CN115542443A
Application number: CN202211334030.7A
Authority: CN
Inventors: 朴永珍; 钱保平; 崔珪雄
Original assignee: Anhui Shenghua Optical Technology Co ltd
Current assignee: Anhui Shenghua Optical Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2022-12-30

Abstract

The invention discloses a reverse prism composite prism film and a manufacturing system and a manufacturing method thereof, wherein the prism film comprises: the first diaphragm comprises a first substrate, a first upper diaphragm layer and a first lower diaphragm layer, wherein the first lower diaphragm layer is positioned on the lower surface of the first substrate; the second membrane comprises a second substrate, a second upper membrane layer and a second lower membrane layer; a third membrane comprising a third substrate, a third upper membrane layer, and a third lower membrane layer; wherein: the first upper film layer, the second upper film layer and the third lower film layer respectively comprise a first main body part and a first groove part, and the first lower film layer, the second lower film layer and the third upper film layer respectively comprise a second main body part and a second groove part. Compared with the prior art, the brightness of the inverse prism composite prism film is higher than that of a conventional down-diffusion + POP prism film by arranging the first film layer with the first groove part on the front surfaces of the first substrate and the second substrate and arranging the second film layer with the second groove part on the back surface.

Description

Reverse edge composite prism film and manufacturing system and manufacturing method thereof

Technical Field

The invention relates to the technical field of light homogenizing films, in particular to a reverse edge composite prism film and a manufacturing system and a manufacturing method thereof.

Background

Even light membrane mainly uses between light source and display screen, this light source is a plurality of pointolite, utilize even light membrane to carry out even light to the light of a plurality of pointolite, thereby with the light dispersion, become the area source by the pointolite, area source light distribution is more dispersed than the pointolite, the formation of image picture visual effect of display screen is also better, but among the prior art, some display screens still probably have the light intensity stronger, the insufficient light spot of even light, even light effect still needs the place that promotes.

Meanwhile, when the light homogenizing film is manufactured, solvent type thermosetting resin is utilized, so that the problem of serious environmental protection exists, a large amount of stink is generated in the solvent drying process, the equipment length needs more than 20m, the space utilization rate is reduced, the production speed is 15-20m/min, and the production efficiency is low.

Disclosure of Invention

The invention aims to provide a reverse prism composite prism film, a manufacturing system and a manufacturing method thereof, which aim to solve the technical problems in the prior art.

The invention provides a reverse prism composite prism film, which comprises:

the first diaphragm comprises a first substrate, a first upper diaphragm layer and a first lower diaphragm layer, wherein the first upper diaphragm layer is positioned on the upper surface of the first substrate, and the first lower diaphragm layer is positioned on the lower surface of the first substrate;

the second membrane comprises a second substrate, a second upper membrane layer and a second lower membrane layer, wherein the second upper membrane layer is positioned on the upper surface of the second substrate, and the second lower membrane layer is positioned on the lower surface of the second substrate;

the third membrane comprises a third substrate, a third upper membrane layer and a third lower membrane layer, wherein the third upper membrane layer is positioned on the upper surface of the third substrate, and the third lower membrane layer is positioned on the lower surface of the third substrate;

wherein:

the first upper film layer, the second upper film layer and the third lower film layer respectively comprise a first main body part and a first groove part, a plurality of first groove parts are formed on the surface of the first main body part in a recessed mode and distributed in an array mode, and the extending direction of the first groove parts at the third lower film layer is opposite to the extending direction of the first groove parts 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 part and a second groove part, the second groove parts are formed on the surface of the second main body part in a recessed mode and are distributed irregularly, and the structure and the depth of each second groove part are different.

In the above reverse prism composite film, preferably, the groove surface of the first groove portion includes a prism structure, the prism structures of the first upper film layer and the second upper film layer extend upward, and the prism structure of the third lower film layer extends downward.

In the above reverse prism composite film, preferably, the groove surface of the second groove portion includes a curved surface structure.

The present application further provides a prism film manufacturing system for manufacturing the uniform light film, including a first apparatus and a second apparatus, wherein:

the first device comprises a first raw material roller, a first compression roller, a forming roller, a second compression roller, a first reeling roller, a first tension roller and a UV light source which are sequentially arranged along a first raw material feeding direction, wherein the first compression roller and the second compression roller are positioned on two opposite sides of the forming roller, preset gaps are formed among the first compression roller, the forming roller, the second compression roller and the forming roller, a plurality of protrusions are formed on the surface of the forming roller, 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 each protrusion is adapted to the inner contour surface of the first groove part or the second groove part, the UV light source is positioned below the forming roller, and the first tension rollers are used for supporting and providing continuous tension control on the first raw material;

the second equipment includes first UV curing equipment, second raw materials roller, third compression roller, fourth compression roller, second tension roller and second roll-up roller, the second roll-up roller is located the exit end of UV curing equipment, the third compression roller and the fourth compression roller is located the entrance point of UV curing equipment, the third compression roller with form preset clearance between the fourth compression roller, second raw materials or fourth raw materials that the second raw materials roller was sent out and third raw materials or fifth raw materials that the third raw materials roller was sent out in the third compression roller and laminate in the preset clearance between the fourth compression roller, second raw materials after the laminating and third raw materials or fourth raw materials and fifth raw materials process first UV curing equipment solidification back roll-up in the second roll-up roller, it is a plurality of the second tension roller is used for supporting and provides the second raw materials and/or the tension control that the third raw materials lasts.

A prism film manufacturing system as described above, wherein preferably, further comprising a third apparatus, the third apparatus comprising a fourth raw material roll, a fifth pressing roll, a third take-up roll, a sixth pressing roll, a third tension roll, a fourth tension roll, and a second UV curing device, wherein:

the fourth raw material roller, the fifth compression roller and the third furling roller are sequentially arranged along a sixth raw material feeding direction, a second UV curing device is positioned between the fifth compression roller and the third furling roller, one end of a sixth raw material is connected to the fourth raw material roller, the other end of the sixth raw material is furled to the third furling roller after sequentially passing through the fifth compression roller and the second UV curing device, a plurality of third tension rollers are distributed on a feeding path of the sixth raw material, and the third tension rollers are used for supporting and providing continuous tension control for the sixth raw material;

the sixth pressing roller abuts against the fifth pressing roller, a seventh raw material is supported by the sixth pressing roller and the fourth tension rollers, the sixth raw material and the seventh raw material are clamped between the fifth pressing roller and the sixth pressing roller, the seventh raw material extends into the second UV curing device from a gap between the fifth pressing roller and the sixth pressing roller and is attached to the sixth raw material, and the seventh raw material and the sixth raw material are separated from contact after passing through the second UV curing device together with the sixth raw material.

The application also provides a prism film manufacturing method, which is used for manufacturing the prism film by using the prism film manufacturing system and comprises the following steps:

s1: the first raw material originally wound on the first raw material roller sequentially passes through the first compression roller, the forming roller and the second compression roller and then is wound on the first winding roller by utilizing the first equipment, the distribution of the bulges on the forming roller is adapted to the distribution of the first groove parts, the surfaces of the bulges are adapted to the inner contour surface of the first groove parts, at the moment, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manpower or mechanical equipment, the driving part drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by utilizing a UV light source, the UV glue is gradually cured to form a first upper film layer, and meanwhile, the forming roller forms a plurality of first groove parts on the surface of the first upper film layer, so that a first membrane in a first stage is obtained;

s2: the first equipment is utilized to place a first membrane of a first stage on a first winding roller on an original first raw material roller after being turned over, and a forming roller is replaced, the distribution of protrusions on the forming roller at the stage is matched with that of second groove portions, the convex outer contour surface is matched with that of the inner contour surface of the second groove portions, the first membrane of the first stage sequentially passes through a first pressing roller, the forming roller and the second pressing roller and then is wound on the first winding roller, the back surface of the first membrane is attached to the forming roller at the moment, a driving piece drives the first winding roller to rotate, the first membrane is conveyed to the first winding roller by the first raw material roller, in the conveying process, a UV light source is utilized to cure UV glue, the UV glue is gradually cured to form a first lower membrane layer, and meanwhile, the forming roller forms a plurality of second groove portions on the surface of the first lower membrane layer, so that the first membrane of a finished product stage is obtained;

s3: the new first raw material wound on the first raw material roller sequentially passes through the first compression roller, the forming roller and the second compression roller and then is wound on the first winding roller by utilizing the first equipment, the distribution of the bulges on the forming roller is adapted to the distribution of the first groove parts, the surfaces of the bulges are adapted to the inner contour surface of the first groove parts, at the moment, the front surface of the substrate is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manpower or mechanical equipment, the driving part drives the first winding roller to rotate, the substrate is conveyed to the first winding roller by utilizing the first raw material roller, in the conveying process, the UV glue is cured by utilizing a UV light source, the UV glue is gradually cured to form a second upper film layer, and meanwhile, the forming roller forms a plurality of first groove parts on the surface of the second upper film layer, so that a second film in the first stage is obtained;

s4: winding one end of the first membrane in a finished product stage on a second raw material roller by using the second equipment to serve as a second raw material, wherein the second raw material is wound on a second winding roller through a first UV curing device after sequentially passing through a gap between a third pressing roller and a fourth pressing roller, the second raw material is horizontally conveyed in the conveying process, UV glue is poured on the second raw material between the second raw material roller and the third pressing roller, one end of the second membrane in the first stage is wound on the second raw material roller to serve as a third raw material, the third raw material is wound on the second winding roller through a first UV curing device after sequentially passing through a gap between the third pressing roller and the fourth pressing roller, the second raw material and the third raw material are attached at the gap between the third pressing roller and the fourth pressing roller and are cured into a whole in the first UV curing equipment to form a uniform light film in the first stage, and at the moment, a first lower film layer of the first membrane is attached to a second film layer of the second membrane;

s5: the first equipment is utilized to turn over the uniform light film in the first stage on the second winding roller, then the uniform light film is placed on a first raw material roller, the forming roller is replaced, the convex distribution on the forming roller in the stage is matched with the distribution of the second groove parts, the convex outer contour surface is matched with the inner contour surface of the second groove parts, the uniform light film in the first stage sequentially passes through the first compression roller, the forming roller and the second compression roller and then is wound on the first winding roller, the back surface of the second membrane is attached to the forming roller at the moment, the driving part drives the first winding roller to rotate, the uniform light film is conveyed to the first winding roller by the first raw material roller, in the conveying process, a UV light source is utilized to cure the UV glue, the UV glue is gradually cured to form a second lower film layer, and meanwhile, the forming roller forms a plurality of second groove parts on the surface of the second lower film layer, so that the uniform light film in the second stage is obtained;

s6: the method comprises the steps that a new first raw material wound on a first raw material roller sequentially passes through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller by utilizing first equipment, the distribution of bulges on the forming roller is adaptive to the distribution of second groove parts, the surfaces of the bulges are adaptive to the inner contour surface of the second groove parts, the front surface of a substrate is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manual or mechanical equipment, a driving part drives the first winding roller to rotate, the substrate is conveyed to the first winding roller by the first raw material roller, the UV glue is cured by utilizing a UV light source in the conveying process, a third upper film layer is formed by gradually curing the UV glue, and meanwhile, a plurality of second groove parts are formed on the surface of the third upper film layer by the forming roller, so that a third film in a first stage is obtained;

s7: utilizing the second equipment, winding one end of the second stage of the light homogenizing film on a second raw material roller to serve as a fourth raw material, enabling the third raw material to sequentially pass through a gap between a third press roller and a fourth press roller and then be wound on a second winding roller through a first UV curing device, horizontally conveying the fourth raw material in the conveying process, pouring UV glue on the fourth raw material between the second raw material roller and the third press roller, simultaneously winding one end of a third membrane in the first stage on the second raw material roller to serve as a fifth raw material, enabling the fifth raw material to sequentially pass through a gap between the third press roller and the fourth press roller and then be wound on the second winding roller through the first UV curing device, attaching the fourth raw material and the fifth raw material at the gap between the third press roller and the fourth press roller, and curing the fourth raw material and the fifth raw material into a whole in the first UV curing equipment to form a third stage of the light homogenizing film;

s8: utilize first equipment will be located the third stage of the even light membrane on the second roll-up roller and place on first raw materials roller after the upset to change the forming roll, this stage the protruding distribution on the forming roll with the distribution of first slot part suits, protruding outer profile surface with the interior profile surface of first slot part suits, the even light membrane of third stage passes in proper order first compression roller become the forming roll second compression roller after convoluteing in first roll-up roller, the back surface laminating of second diaphragm this moment in on the forming roll, the first roll-up roller of driving piece drive rotates, even light membrane is carried to first roll-up roller by first raw materials roller, in transportation process, utilizes UV light source to solidify UV and glues, and UV glues progressively solidifies and form the third and descend the rete, and the forming roll forms a plurality ofly on the surface of rete under the third simultaneously first slot part to obtain off-the even light membrane of finished product.

s1: the first raw material which is originally wound on the first raw material roller sequentially passes through the first compression roller, the forming roller and the second compression roller and then is wound on the first winding roller by utilizing the first equipment, the raised distribution on the forming roller is adaptive to the distribution of the first groove parts, the raised outer contour surface is adaptive to the inner contour surface of the first groove parts, at the moment, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manual or mechanical equipment, the driving part drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by utilizing a UV light source, the UV glue is gradually cured to form a first upper film layer, and meanwhile, the forming roller forms a plurality of first groove parts on the surface of the first upper film layer, so that a first soft film is obtained;

s2: the first soft film is sleeved on a fifth compression roller and a plurality of fourth tension rollers by using third equipment to serve as a seventh raw material, one end of the sixth raw material is led out from the fourth raw material roller, passes through a gap between the sixth compression roller and the fifth compression roller, is led into a second UV curing device and then is wound into a third winding roller, UV glue is added between the sixth compression roller and the fifth compression roller, 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, so that the first groove part is transferred onto the UV glue layer on the fourth raw material, and the first film with the first groove part of the first upper film layer is cured at the second UV curing device;

s3: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with the distribution of second groove portions, the protruding outer contour surface is matched with the inner contour surface of the second groove portions, the front surface of the first raw material is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters through manual or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller through the first raw material roller, in the conveying process, a UV light source is used for curing the UV glue, the UV glue is gradually cured to form a first lower film layer, and meanwhile the forming roller forms a plurality of second groove portions on the surface of the first lower film layer, so that a second soft film is obtained;

s4: the second soft film is sleeved on a fifth compression roller and a plurality of fourth tension rollers by using third equipment to serve as a seventh raw material, one end, after overturning, of the first film obtained in the S2 stage is led out from a fourth raw material roller, passes through a gap between a sixth compression roller and the fifth compression roller, is led into a second UV curing device and then is rolled into a third rolling roller, UV glue is added between the sixth compression roller and the fifth compression roller, and the second soft film is pressed on the second raw material from the fifth compression roller to an outlet of the second UV curing device, so that the second groove portion is transferred onto the UV glue layer on the first film, and is cured at the second UV curing device, and the first film with the first groove portion of the first upper film layer and the second groove portion of the first lower film layer is obtained;

s5: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with the distribution of first groove portions, the protruding outer contour surface is matched with the inner contour surface of the first groove portions, the front surface of the first raw material is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters through manual or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller through the first raw material roller, in the conveying process, a UV light source is used for curing the UV glue, the UV glue is gradually cured to form a second upper film layer, and meanwhile the forming roller forms a plurality of first groove portions on the surface of the second upper film layer, so that a third soft film is obtained;

s6: by utilizing third equipment, sleeving the third soft film on a fifth compression roller and a plurality of fourth tension rollers to serve as a seventh raw material, leading one end of the sixth raw material out of a fourth raw material roller, leading the sixth raw material into a second UV curing device through a gap between the sixth compression roller and the fifth compression roller, then rolling the sixth raw material into a third rolling roller, adding UV glue between the sixth compression roller and the fifth compression roller, pressing the first soft film on the second raw material from the fifth compression roller to an outlet of the second UV curing device, transferring the first groove part onto the UV glue layer on the fourth raw material, and curing the first soft film at the second UV curing device to obtain a second film with a first groove part of a second upper film layer;

s7: winding one end of the first membrane in a finished product stage on a second raw material roller by using the second equipment to serve as a second raw material, wherein the second raw material is wound on a second winding roller through a first UV curing device after sequentially passing through a gap between a third pressing roller and a fourth pressing roller, the second raw material is horizontally conveyed in the conveying process, UV glue is poured on the second raw material between the second raw material roller and the third pressing roller, one end of the second membrane manufactured in the step S6 is wound on the second raw material roller to serve as a third raw material, the third raw material is wound on the second winding roller through a first UV curing device after sequentially passing through a gap between the third pressing roller and the fourth pressing roller, the second raw material and the third raw material are attached at the gap between the third pressing roller and the fourth pressing roller and are cured into a whole in the first UV curing equipment to form a uniform light film in the first stage, and at the moment, a first lower film layer of the first membrane is attached to a second film layer of the second membrane;

s8: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the convex distribution of the forming roller is matched with that of a second groove portion, the convex outer contour surface is matched with that of the inner contour surface of the second groove portion, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by means of manpower or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, the UV glue is cured by a UV light source in the conveying process, the UV glue is gradually cured to form a second lower film layer, and meanwhile the forming roller forms a plurality of second groove portions in the surface of the second lower film layer, so that a fourth soft film is obtained;

s9: the fourth soft film is sleeved on a fifth compression roller and a plurality of fourth tension rollers by utilizing third equipment and used as a seventh raw material, one end, obtained in the S7 stage, of the uniform light film in the first stage after overturning is led out from the fourth raw material roller, the uniform light film is drawn into a third furling roller after being led into a second UV curing device through a gap between a sixth compression roller and the fifth compression roller, UV glue is added between the sixth compression roller and the fifth compression roller, and the fourth soft film is pressed on the uniform light film from the fifth compression roller to the outlet of the second UV curing device, so that a second groove part is transferred onto the UV glue layer on the uniform light film, and the uniform light film in the second stage is obtained after curing at the second UV curing device;

s10: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with the distribution of second groove portions, the protruding outer contour surface is matched with the inner contour surface of the second groove portions, the front surface of the first raw material is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters through manual or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller through the first raw material roller, in the conveying process, a UV light source is used for curing the UV glue, the UV glue is gradually cured to form a third upper film layer, and meanwhile the forming roller forms a plurality of second groove portions on the surface of the third upper film layer, so that a fifth soft film is obtained;

s11: by utilizing third equipment, sleeving the fifth flexible film on a fifth compression roller and a plurality of fourth tension rollers to serve as a seventh raw material, leading one end of the sixth raw material out of a fourth raw material roller, leading the sixth raw material into a second UV curing device through a gap between the sixth compression roller and the fifth compression roller, then rolling the sixth raw material into a third rolling roller, adding UV glue between the sixth compression roller and the fifth compression roller, pressing the first flexible film on the second raw material from the fifth compression roller to an outlet of the second UV curing device, transferring the first groove part onto the UV glue layer on the fourth raw material, and curing the first flexible film at the second UV curing device to obtain a third membrane with a first groove part of a third upper membrane layer;

s12: utilizing the second equipment, winding one end of the first membrane in a finished product stage on a second raw material roller to serve as a fourth raw material, wherein the second raw material is wound on the second winding roller through a first UV curing device after sequentially passing through a gap between a third pressing roller and the fourth pressing roller, the second raw material is horizontally conveyed in the conveying process, pouring UV glue on the fourth raw material between the second raw material roller and the third pressing roller, meanwhile, winding one end of the third membrane manufactured in the step S7 on the second raw material roller to serve as a fifth raw material, the fifth raw material sequentially passes through a gap between the third pressing roller and the fourth pressing roller and is wound on the second winding roller through the first UV curing device, and the fourth raw material and the fifth raw material are attached at the gap between the third pressing roller and the fourth pressing roller and cured into a whole in the first UV curing equipment to form a third-stage light homogenizing membrane;

s13: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with the distribution of first groove portions, the protruding outer contour surface is matched with the inner contour surface of the first groove portions, the front surface of the first raw material is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters through manual or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller through the first raw material roller, in the conveying process, a UV light source is used for curing the UV glue, the UV glue is gradually cured to form a third lower film layer, and meanwhile the forming roller forms a plurality of first groove portions on the surface of the third lower film layer, so that a sixth soft film is obtained;

s14: and sleeving the sixth flexible film on a fifth compression roller and a plurality of fourth tension rollers by utilizing third equipment to serve as a seventh raw material, leading one end, obtained in the S12 stage, of the turned uniform light film in the first stage out of the fourth raw material rollers, leading the end, obtained in the S12 stage, of the uniform light film in the first stage into a third winding roller through a gap between the sixth compression roller and the fifth compression roller, then leading the end, obtained in the S12 stage, of the uniform light film into a second UV curing device, adding UV glue between the sixth compression roller and the fifth compression roller, and pressing the sixth flexible film on the uniform light film from the fifth compression roller to an outlet of the second UV curing device, so that a second groove part is transferred onto the UV glue layer on the uniform light film, and curing is obtained at the second UV curing device, and thus the uniform light film in a finished product stage is obtained.

Compared with the prior art, the invention can form more scattered light-gathering points on the projection surface by arranging the first film layer with the first groove part on the front surfaces of the first substrate and the second substrate and arranging the second film layer with the second groove part on the back surface, so that the light intensity at each position of the display screen is more uniform, the light-homogenizing effect is better, the extending direction of the first groove part of the back surface of the third substrate is opposite to the extending direction of the first groove parts of the first upper film layer and the second upper film layer, namely, the prism faces the light guide plate, the invention replaces the lower diffusion sheet of the conventional backlight module to use, the brightness of the backlight module can be improved by about 10 percent, and meanwhile, the customer-end module assembly is convenient, a plurality of light-homogenizing films are reduced to one light-homogenizing film, and the reject ratio caused by dirt, scratch and the like during the film assembly is reduced. The total thickness can be reduced, the solvent-free UV adhesive is used for curing and matched with a forming roller forming technology, the energy is saved, the environment is protected, the space utilization rate of production equipment is high, and the production speed is improved.

Drawings

FIG. 1 is a first schematic structural view of a light uniformizing film according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a light homogenizing film provided by the embodiment of the invention;

FIG. 3 is an SEM image of a second groove portion of a light uniformity film provided by an example of the present invention;

fig. 4 is an SEM image of a first groove portion of the light uniformity film provided in the example of the present invention;

fig. 5 is a schematic structural diagram of a first device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second device according to a first embodiment of the present invention;

FIG. 7 is a schematic diagram of a forming roll with protrusions of a first type in a prism film manufacturing system according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a second pattern of raised form rollers of a prismatic film manufacturing system according to one embodiment of the present invention;

fig. 9 is a schematic structural diagram of a third apparatus according to the second embodiment of the present invention.

Description of reference numerals:

100-light homogenizing 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 part, 110-first groove part, 111-second main body part, 112-second groove part 117-third film layer, 118-third substrate, 119-third upper film layer, 120-third lower film layer;

200-first apparatus, 201-first stock roll, 202-first press roll, 203-form roll, 204-second press roll, 205-first take-up roll, 206-embossment, 207-UV light source, 208-first tension roll;

300-second equipment, 301-first UV curing equipment, 302-second raw material roller, 303-third raw material roller, 304-third press roller, 305-fourth press roller, 306-second tension roller, 307-second take-up roller;

400-third equipment, 401-fourth raw material roller, 402-fifth press roller, 403-third winding roller, 404-sixth press roller, 405-third tension roller, 406-fourth tension roller and 407-second UV curing device.

Detailed Description

The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In prior art, LCD display module is including display screen and backlight, the backlight sends light, formation of image on the display screen, including a plurality of pointolite in the backlight, if the pointolite directly throws on the display screen, can lead to the display screen to become image light dark inhomogeneous, influence the visual effect of formation of image picture, therefore, need set even membrane 100 between backlight and display screen usually, carry out even light with the light of pointolite, even membrane 100 becomes the light of area source with the light of pointolite, area source light distribution is more dispersed than the pointolite, the formation of image picture visual effect of display screen is also better, but among the prior art, some display screens still probably exist the light intensity stronger, the insufficient light spot of even light, even light effect of even membrane 100 still need promote the place.

As shown in fig. 1 and 2, an embodiment of the present invention provides a reverse prism film 100, including:

the first film 101 includes a first substrate 102, a first upper film 103, and a first lower film 104, the first upper film 103 is located on an upper surface of the first substrate 102, the first lower film 104 is located on a lower surface of the first substrate 102, and the upper surface and the lower surface are disposed opposite to each other along a first direction, in an embodiment provided by the present application, the first direction is a normal direction of the display screen, the first substrate 102 may be an optical-grade PET or PC film with a chemically processed surface, and the thickness of the transparent substrate is 25-250 μm, including an end point value, specifically, the thickness is 25um, 50um, 75um, 100um, 125um, 150um, 175um, 200um, 225um, 250um, and the like.

The second film 105 includes 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, the second lower film layer 108 is located on the lower surface of the second substrate 106, the second substrate 106 may be a transparent substrate such as an optical-grade PET or PC film whose surface is chemically processed, and the thickness is 25-250 μm, including an end point value, specifically, the thickness is 25um, 50um, 75um, 100um, 125um, 150um, 175um, 200um, 225um, 250um, and the like, and may be other values within the above range, which are not limited herein.

The third film 117 includes a third substrate 118, a third upper film 119 and a third lower film 120, the third upper film 119 is located on the upper surface of the third substrate 118, the third lower film 120 is located on the lower surface of the third substrate 118, the third substrate 118 may be an optical-grade PET or PC film or other transparent substrate whose surface is chemically processed, and has a thickness of 25-250 μm, including an end point value, specifically, a thickness of 25um, 50um, 75um, 100um, 125um, 150um, 175um, 200um, 225um, 250um, and the like, and may also be other values within the above range, which are not limited herein.

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 portion 109 and first groove portions 110, as shown in fig. 1, the plurality of first groove portions 110 are formed on the surface of the first main body portion 109 in a recessed manner, the plurality of first groove portions 110 are distributed in an array manner, as shown in fig. 5, groove surfaces of the first groove portions 110 include prism structures. The prism structure utilizes the conical collimation principle to limit the range of the emergent angle of the light, so that the collimation effect of the light is improved, more scattered light-gathering points can be formed on the display screen, the light intensity of each position of the projection surface is more uniform, and the light-homogenizing effect is better.

The extending direction of the first groove 110 of the third lower film layer 120 is opposite to the extending direction of the first groove of the first upper film layer 103 and the second upper film layer 107, the prism structures of the first upper film layer 103 and the second upper film layer 107 extend upward, and the prism structure of the third lower film layer 120 extends downward. That is, the prism structures of the first upper film layer 103 and the second upper film layer 107 are regular pyramids, and the prism structure of the third lower film layer 120 is an inverse pyramid structure, that is, the prisms face the light guide plate, and are used instead of the lower diffusion sheet of the conventional backlight module, so that the brightness of the backlight module can be improved by about 10%.

The first lower film layer 104, the second lower film layer 108, and the third upper film layer 119 include a second main body 111 and a second groove 112, the plurality of second grooves 112 are recessed and formed on the surface of the second main body 111, the plurality of second grooves 112 are distributed irregularly, the structure and depth of each second groove 112 are different, the groove surface of the second groove 112 includes an arc structure, and the shape of the arc structure of each second groove 112 has different values, and there is also a case, as shown in fig. 2, the recessed structure of the second groove 112 is formed by protrusions protruding from the surface of the second main body 109, and the structure and function of the recessed structure can be referred to the above, as shown in fig. 3, so that a haze surface shape with a higher haze is formed on the surface of the second main body 111, the haze is a percentage of a transmission light intensity which deviates from an incident light by an angle of 2.5 ° or more, and the higher the haze is the haze value of the transmission light intensity of the total transmission light intensity, and the haze value is formed by the surface of the second main body 109, and the recessed surface of the irregular shape, and the haze value is 99% -99% included between the haze value of the haze value.

Compared with the prior art, the invention can form more scattered light-gathering points on the projection surface by arranging the first film layer with the first groove 110 on the front surface of the first substrate 102 and the second substrate 106 and arranging the second film layer with the second groove 112 on the back surface, so that the light intensity at each position of the display screen is more uniform, the light-homogenizing effect is better, the extending direction of the first groove 110 on the back surface of the third substrate 118 is opposite to the extending direction of the first groove 110 on the first upper film layer 103 and the second upper film layer 107, namely, the prism faces to the light guide plate, the invention replaces the lower diffusion sheet of the conventional backlight module, the brightness of the backlight module can be improved by about 10 percent, the assembly of a customer end module is facilitated, the number of light-homogenizing films 100 is reduced to one light-homogenizing film 100, and the reject ratio caused by dirt, scratch and the like during the assembly of the film is reduced. The total thickness can be reduced.

In the prior art, when the light homogenizing film 100 is manufactured, solvent type thermosetting resin is utilized, so that the problem of serious environmental protection exists, a large amount of stink is generated in the solvent drying process, the equipment length needs to be more than 20m, the space utilization rate is reduced, the production speed is 15-20m/min, and the production efficiency is low.

Example one

In order to solve the above technical problem and simultaneously manufacture the light homogenizing film 100 mentioned in the above embodiments, the present application further provides a light homogenizing film 100 manufacturing system for manufacturing the light homogenizing film 100 mentioned above, comprising a first apparatus 200 and a second apparatus 300, wherein:

referring to fig. 5, the first apparatus 200 includes a first raw material roller 201, a first pressing roller 202, a forming roller 203, a second pressing roller 204, a first winding roller 205, a first tension roller 208 and a UV light source 207, which are sequentially arranged along a first raw material feeding direction, the first pressing roller 202, the forming roller 203, the second pressing roller 204 and the first winding roller 205 are all driven by a driving mechanism to rotate, so that the substrate can be wound on the first pressing roller 205 sequentially by the first pressing roller 202, the forming roller 203 and the second pressing roller 204, and then winding is achieved on the first winding roller 205, the first pressing roller 202 and the second pressing roller 204 are located on opposite sides of the forming roller 203, a preset gap is formed between the first pressing roller 202 and the forming roller 203, and between the second pressing roller 204 and the forming roller 203, a plurality of protrusions 206 are formed on the surface of the forming roller 203, the distribution of the protrusions 206 is adapted to the distribution of the first groove 110 or the second groove 112, the outer profile of the protrusions 206 is adapted to the inner profile of the first groove 110 or the second groove 112, the UV light source 207 is located below the first pressing roller 203, and the plurality of the tension rollers 208 are used for supporting the first tension roller 208 to continuously control the raw material.

Above the area between the first press roller 202 and the forming roller 203, a feeding table (not shown) is arranged for supplying UV glue, the UV glue is supplied between the first press roller 202 and the forming roller 203, the substrate is continuously fed and clamped by the first press roller 202 and the forming roller 203, in the process, the UV glue is extruded by the protrusion 206 on the forming roller 203 to form a groove, so that the first groove part 110 or the second groove part 112 is formed, in the process, the UV light source 207 provides a curing effect, and the forming roller 203 forming technology is matched by using solvent-free UV glue curing, so that the energy is saved, the environment is protected, compared with the prior art, the equipment provided by the application has the length of 11m, the space utilization rate of the production equipment is large, the production speed is 10-20m/min, and the production efficiency is improved.

In a possible embodiment, the UV glue comprises a mixture of 50-60% by mass of acrylate monomers, 40-50% by mass of acrylate oligomers and 1-5% by mass of auxiliaries such as photoinitiators. The use of the high-transmittance UV adhesive has good formability and light permeability, and can ensure light flux.

Referring to fig. 6, the second apparatus 300 includes a first UV curing apparatus 301, a second raw material roller 302, a third raw material roller 303, a third pressing roller 304, a fourth pressing roller 305, a second tension roller 306, and a second retracting roller 307, the second retracting roller 307 is located at an outlet end of the UV curing apparatus, the third pressing roller 304 and the fourth pressing roller 305 are located at an inlet end of the UV curing apparatus, a predetermined gap is formed between the third pressing roller 304 and the fourth pressing roller 305, the second raw material or the fourth raw material sent out by the second raw material roller 302 and the third raw material or the fifth raw material sent out by the third raw material roller 303 are bonded in the predetermined gap between the third pressing roller 304 and the fourth pressing roller 305, the bonded second raw material and the third raw material or the fourth raw material and the fifth raw material are cured by the first UV curing apparatus 301 and then retracted into the second retracting roller 307, and a plurality of second tension rollers 306 are used for supporting and providing continuous tension control of the second raw material and/or the third raw material.

First compression roller 202, forming roller 203, second compression roller 204 and first furling roller 205 are all driven by actuating mechanism and rotate to make the basement can twine first compression roller 202 in proper order, forming roller 203, behind the second compression roller 204, realize the furling on first furling roller 205, on the walking material route, still be equipped with a plurality of tension rollers, in order to provide continuous tension control, first compression roller 202 and second compression roller 204 are located the relative both sides of forming roller 203, all form preset clearance between first compression roller 202 and forming roller 203, second compression roller 204 and the forming roller 203, the numerical value of preset clearance matches with the thickness of basement. The first pressure roller 202 and the second pressure roller 204 are smooth rollers, and the forming roller 203 has a plurality of protrusions 206 formed on the surface thereof, and as shown in fig. 7 and 8, the distribution of the protrusions 206 is adapted to the distribution of the first groove 110 or the second groove 112, and the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove 110 or the second groove 112.

In the embodiment provided by the present application, the UV light source 207 is further included, the UV light source 207 is located below the forming roller 203, and above the area between the first pressing roller 202 and the forming roller 203, a supply table (not shown) is provided for supplying UV glue, the UV glue is supplied between the first pressing roller 202 and the forming roller 203, the substrate is continuously fed and clamped by the first pressing roller 202 and the forming roller 203, the UV glue is pressed by the protrusion 206 on the forming roller 203 to form the groove, so as to form the first groove portion 110 or the second groove portion 112, the UV light source 207 provides a curing effect in the process, so that the UV glue forms the first film layer or the second film layer, and the forming roller 203 is cured by using the solvent-free UV glue, which is more energy-saving and environmentally-friendly, compared with the prior art, the apparatus provided by the present application has a length of 11m, so that the space utilization ratio of the production apparatus is large, the production speed is 10-20m/min, and the production efficiency is improved.

Based on the above manufacturing system of the light uniformizing film 100, the present embodiment further provides a manufacturing method of the light uniformizing film 100, which includes the following steps:

s1: the first raw material originally wound on a first raw material roller 201 sequentially passes through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then is wound on a first winding roller 205 by using first equipment 200, the distribution of protrusions 206 on the forming roller 203 is adapted to the distribution of first groove parts 110, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove parts 110, at the moment, the front surface of the first raw material is attached to the forming roller 203, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters by using manpower or mechanical equipment, a driving part drives the first winding roller 205 to rotate, the first raw material is conveyed to the first winding roller 205 by the first raw material roller 201, in the conveying process, the UV glue is cured by using a UV light source 207, the UV glue is gradually cured to form a first upper film layer 103, and meanwhile, the forming roller 203 forms a plurality of first groove parts 110 on the surface of the first upper film layer 103, so that the first film 101 in a first stage is obtained;

s2: the first film 101 of the first stage on the first take-up roll 205 is placed on the original first raw material roll 201 after being turned over by using the first equipment 200, and is replaced by the forming roll 203, the distribution of the protrusions 206 on the forming roll 203 of the first stage is adapted to the distribution of the second groove portions 112, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove portions 112, the first film 101 of the first stage sequentially passes through the first pressing roll 202, the forming roll 203 and the second pressing roll 204 and is wound on the first take-up roll 205, the back surface of the first film 101 is attached to the forming roll 203 at the moment, the driving part drives the first take-up roll 205 to rotate, the first film 101 is conveyed from the first raw material roll 201 to the first take-up roll 205, in the conveying process, the UV light source 207 is used for curing UV glue, the UV glue is gradually cured to form the first lower film layer 104, and the forming roll 203 forms a plurality of second groove portions 112 on the surface of the first lower film layer 104, so as to obtain the first film 101 of the finished product stage;

s3: using a first apparatus 200, sequentially passing a new first raw material wound on a first raw material roller 201 through a first press roller 202, a forming roller 203 and a second press roller 204, then winding the new first raw material on a first winding roller 205, wherein the distribution of protrusions 206 on the forming roller 203 is adapted to the distribution of first groove portions 110, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove portions 110, at this time, the front surface of the substrate is attached to the forming roller 203, using manual or mechanical equipment to pour liquid UV glue between the first press roller 202 and the forming roller 203 according to preset parameters, a driving member drives the first winding roller 205 to rotate, the substrate is conveyed from the first raw material roller 201 to the first winding roller 205, in the conveying process, using a UV light source 207 to cure the UV glue, the UV glue is gradually cured to form a second upper film layer 107, and simultaneously, the forming roller 203 forms a plurality of first groove portions 110 on the surface of the second upper film layer 107, thereby obtaining a second film 105 in a first stage;

s4: using a second apparatus 300, winding one end of the first film sheet 101 in the finished product stage on a second raw material roller 302 to serve as a second raw material, wherein the second raw material sequentially passes through a gap between a third pressing roller 304 and a fourth pressing roller 305 and then is wound on a second winding roller 307 through a first UV curing device, the second raw material is horizontally conveyed in the conveying process, pouring UV glue on the second raw material between the second raw material roller 302 and the third pressing roller 304, simultaneously winding one end of the second film sheet 105 in the first stage on the second raw material roller 302 to serve as a third raw material, the third raw material sequentially passes through a gap between the third pressing roller 304 and the fourth pressing roller 305 and then is wound on the second winding roller 307 through the first UV curing device, and the second raw material and the third raw material are bonded at the gap between the third pressing roller 304 and the fourth pressing roller 305 and are cured into a whole in the first UV curing device 301 to form the light-uniformizing film 100 in the first stage, and at this time, the first lower film sheet 104 of the first film sheet 101 is bonded with the second lower film 107 of the second film sheet 105 in the first UV curing device 301;

s5: the first stage of the light uniformizing film 100 on the second winding roller 307 is placed on the first raw material roller 201 after being turned over by using the first equipment 200, and is replaced by a forming roller 203, the distribution of the protrusions 206 on the forming roller 203 at this stage is adapted to the distribution of the second groove parts 112, the outer contour surfaces of the protrusions 206 are adapted to the inner contour surface of the second groove parts 112, the light uniformizing film 100 at the first stage sequentially passes through the first pressing roller 202, the forming roller 203 and the second pressing roller 204 and is wound on the first winding roller 205, the back surface of the second film sheet 105 is attached to the forming roller 203 at this time, 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, in the conveying process, the UV light source 207 is used for curing the UV glue, the UV glue is gradually cured to form the second lower film layer 108, and the forming roller 203 forms a plurality of second groove parts 112 on the surface of the second lower film layer 108, so as to obtain the light uniformizing film 100 at the second stage;

s6: using a first apparatus 200, sequentially passing a new first raw material wound on a first raw material roller 201 through a first press roller 202, a forming roller 203 and a second press roller 204, then winding the new first raw material on a first winding roller 205, wherein the distribution of protrusions 206 on the forming roller 203 is adapted to the distribution of second groove portions 112, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the second groove portions 112, at this time, the front surface of the substrate is attached to the forming roller 203, using manual or mechanical equipment to pour liquid UV glue between the first press roller 202 and the forming roller 203 according to preset parameters, driving a driving member to drive the first winding roller 205 to rotate, conveying the substrate from the first raw material roller 201 to the first winding roller 205, curing the UV glue by using a UV light source 207 during the conveying process, gradually curing the UV glue to form a third upper film layer 119, and simultaneously forming the forming roller 203 forms a plurality of second groove portions 112 on the surface of the third upper film layer 119, thereby obtaining a third film 117 in a first stage;

s7: utilizing a second apparatus 300, winding one end of the first film sheet 101 in the finished product stage on a second raw material roller 302 to serve as a fourth raw material, wherein the fourth raw material sequentially passes through a gap between a third pressing roller 304 and a fourth pressing roller 305 and then is wound on a second winding roller 307 through a first UV curing device, the fourth raw material is horizontally conveyed in the conveying process, pouring UV glue on the fourth raw material between the second raw material roller 302 and the third pressing roller 304, meanwhile, winding one end of the second film sheet 105 in the first stage on the second raw material roller 302 to serve as a fifth raw material, the fifth raw material sequentially passes through a gap between the third pressing roller 304 and the fourth pressing roller 305 and then is wound on the second winding roller 307 through the first UV curing device, and the fourth raw material and the fifth raw material are bonded in the gap between the third pressing roller 304 and the fourth pressing roller 305 and are cured into a whole in the first UV curing apparatus 301 to form the light-uniformizing film 100 in the third stage;

s8: the first step of the light uniformizing film 100 on the second winding roller 307 is placed on the first raw material roller 201 after being turned over by the first equipment 200, and is replaced by the forming roller 203, the distribution of the protrusions 206 on the forming roller 203 at this stage is adapted to the distribution of the first groove portions 110, the outer contour surface of the protrusions 206 is adapted to the inner contour surface of the first groove portions 110, the third step of the light uniformizing film 100 sequentially passes through the first pressing roller 202, the forming roller 203 and the second pressing 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, during the conveying process, the UV light source 207 is used for curing the UV glue, the UV glue is gradually cured to form a third lower film layer 120, and the forming roller 203 forms a plurality of the first groove portions 110 on the surface of the third lower film layer 120, thereby obtaining the light uniformizing film 100 at the finished product stage.

The dodging film 100 manufactured by the manufacturing method can form more scattered light-gathering points on a projection surface, so that light intensity at each position of a display screen is more uniform, a dodging effect is better, meanwhile, the solvent-free UV glue is used for curing and matched with a forming roller 203 forming technology, energy is saved, environment is protected, the space utilization rate of production equipment is high, and the production speed is improved.

Example two

The difference between this embodiment and the first embodiment is that a third apparatus 400 is added, and as shown in fig. 9, the third apparatus 400 includes a fourth raw material roller 401, a fifth pressing roller 402, a third take-up roller 403, a sixth pressing roller 404, a third tension roller 405, a fourth tension roller 406, and a second UV curing device 407, where:

a fourth raw material roller 401, a fifth pressing roller 402 and a third winding roller 403 are sequentially arranged along a sixth raw material feeding direction, a second UV curing device 407 is positioned between the fifth pressing roller 402 and the third winding roller 403, one end of a sixth raw material is connected to the fourth raw material roller 401, the other end of the sixth raw material is wound on the third winding roller 403 after sequentially passing through the fifth pressing roller 402 and the second UV curing device 407, a plurality of third tension rollers 405 are distributed on a feeding path of the sixth raw material, and the plurality of third tension rollers 405 are used for supporting and providing continuous tension control of the sixth raw material;

the sixth pressing roller 404 is pressed against the fifth pressing roller 402, a seventh raw material is supported by the sixth pressing roller 404 and a plurality of fourth tension rollers 406, the sixth raw material and the seventh raw material are clamped between the fifth pressing roller 402 and the sixth pressing roller 404, the seventh raw material extends into the second UV curing device 407 from a gap between the fifth pressing roller 402 and the sixth pressing roller 404 and is attached to the sixth raw material, and the seventh raw material and the sixth raw material are separated from contact after passing through the second UV curing device together with the sixth raw material.

Based on the manufacturing system of the light uniformizing film 100 provided by the second embodiment, the present application further provides a manufacturing method of the light uniformizing film 100, which includes the following steps:

s1: using a first device 200, sequentially enabling a first raw material originally wound on a first raw material roller 201 to pass through a first press roller 202, a forming roller 203 and a second press roller 204 and then to be wound on a first winding roller 205, enabling distribution of protrusions 206 on the forming roller 203 to be adapted to distribution of first groove portions 110, enabling outer contour surfaces of the protrusions 206 to be adapted to inner contour surfaces of the first groove portions 110, enabling front surfaces of the first raw material to be attached to the forming roller 203, pouring liquid UV glue between the first press roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, driving a driving piece to drive the first winding roller 205 to rotate, enabling the first raw material to be conveyed to the first winding roller 205 through the first raw material roller 201, curing the UV glue through a UV light source 207 in the conveying process, enabling the UV glue to be gradually cured to form a first upper film layer 103, and enabling the forming roller 203 to form a plurality of first grooves 110 on the surface of the first upper film layer 103, so that a first soft film is obtained;

s2: the first soft film is sleeved on a fifth compression roller 402 and a plurality of fourth tension rollers 406 by using a third device 400, as a seventh raw material, one end of the sixth raw material is led out from a fourth raw material roller 401, passes through a gap between the sixth compression roller 404 and the fifth compression roller 402, is led into a second UV curing device 407 and then is wound into a third winding roller 403, UV glue is added between the sixth compression roller 404 and the fifth compression roller 402, the first soft film is pressed on the second raw material from the fifth compression roller 402 to the outlet of the second UV curing device 407, so that the first groove part 110 is transferred to the UV glue layer on the fourth raw material, and the first film is cured at the second UV curing device 407, so that the first film 101 with the first groove part 110 of the first upper film layer 103 is obtained;

s3: the method comprises the steps that a first device 200 is used for enabling a new first raw material which is originally wound on a first raw material roller 201 to sequentially pass through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then to be wound on a first winding roller 205, the distribution of protrusions 206 on the forming roller 203 is matched with the distribution of second groove portions 112, the outer contour surface of the protrusions 206 is matched with the inner contour surface of the second groove portions 112, the front surface of the first raw material is attached to the forming roller 203, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, a driving piece drives the first winding roller 205 to rotate, the first raw material is conveyed to the first winding roller 205 through the first raw material roller 201, in the conveying process, the UV glue is cured through a UV light source 207, the UV glue is gradually cured to form a first lower film layer 104, and meanwhile the forming roller 203 forms a plurality of second groove portions 112 on the surface of the first film layer 104, so that a second soft film is obtained;

s4: sleeving the second soft film on a fifth compression roller 402 and a plurality of fourth tension rollers 406 by using a third device 400, leading one end of the first film 101 obtained in the step S2 after overturning out of the fourth raw material roller 401, leading the end of the first film through a gap between a sixth compression roller 404 and the fifth compression roller 402, then leading the end of the first film into a second UV curing device 407, and then rolling into a third rolling-up roller 403, adding UV glue between the sixth compression roller 404 and the fifth compression roller 402, wherein the second soft film presses on the second raw material from the fifth compression roller 402 to an outlet of the second UV curing device 407, so that the second groove 112 is transferred onto the UV glue layer on the first film 101, and the second soft film is cured at the second UV curing device 407, so that the first film 101 with the first groove 110 of the first upper film layer 103 and the second groove 112 of the first lower film layer 104 is obtained;

s5: the method comprises the steps that a first device 200 is used for enabling a new first raw material which is originally wound on a first raw material roller 201 to sequentially pass through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then to be wound on the first winding roller 205, the distribution of protrusions 206 on the forming roller 203 is matched with that of first groove portions 110, the outer contour surface of the protrusions 206 is matched with that of the inner contour surface of the first groove portions 110, the front surface of the first raw material is attached to the forming roller 203 at the moment, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, a driving piece drives the first winding roller 205 to rotate, the first raw material is conveyed to the first winding roller 205 through the first raw material roller 201, in the conveying process, the UV glue is cured through a UV light source 207, the UV glue is gradually cured to form a second upper film layer 107, and meanwhile the forming roller 203 forms a plurality of first groove portions 110 on the surface of the second upper film layer 107, so that a third soft film is obtained;

s6: using a third apparatus 400, the third soft film is sleeved on a fifth pressing roller 402 and a plurality of fourth tension rollers 406, as a seventh raw material, one end of the sixth raw material is led out from a fourth raw material roller 401, passes through a gap between the sixth pressing roller 404 and the fifth pressing roller 402, is led into a second UV curing device 407, and is rolled into a third rolling roller 403, and UV glue is added between the sixth pressing roller 404 and the fifth pressing roller 402, so that the first soft film is pressed on the second raw material from the fifth pressing roller 402 to the outlet of the second UV curing device 407, thereby transferring the first groove part 110 onto the UV glue layer on the fourth raw material, and is cured at the second UV curing device 407, thereby obtaining the second film 105 with the first groove part 110 of the second upper film layer 107;

s7: using a second apparatus 300, winding one end of the first film 101 in the finished product stage on a second raw material roller 302 to serve as a second raw material, wherein the second raw material sequentially passes through a gap between a third pressing roller 304 and a fourth pressing roller 305 and then is wound on a second winding roller 307 through a first UV curing device, the second raw material is horizontally conveyed in the conveying process, pouring UV glue on the second raw material between the second raw material roller 302 and the third pressing roller 304, meanwhile, winding one end of the second film 105 manufactured in the step S6 on the second raw material roller 302 to serve as a third raw material, the third raw material sequentially passes through a gap between the third pressing roller 304 and the fourth pressing roller 305 and then is wound on the second winding roller 307 through the first UV curing device, and the second raw material and the third raw material are bonded at the gap between the third pressing roller 304 and the fourth pressing roller 305 and are cured into a whole in a first UV curing apparatus 301 to form a first stage light-uniformizing film 100, and at this time, a second lower film layer 104 of the first film 101 is bonded on a second film layer 107 of the second film 105;

s8: the method comprises the steps that a first device 200 is used for enabling a new first raw material which is originally wound on a first raw material roller 201 to sequentially pass through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then to be wound on a first winding roller 205, the distribution of protrusions 206 on the forming roller 203 is matched with that of second groove portions 112, the outer contour surface of the protrusions 206 is matched with that of the inner contour surface of the second groove portions 112, the front surface of the first raw material is attached to the forming roller 203 at the moment, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, a driving piece drives the first winding roller 205 to rotate, the first raw material is conveyed to the first winding roller 205 through the first raw material roller 201, in the conveying process, the UV glue is cured through a UV light source 207, the UV glue is gradually cured to form a second lower film layer 108, and meanwhile the forming roller 203 forms a plurality of second groove portions 112 on the surface of the second lower film layer 108, so that a fourth soft film is obtained;

s9: the fourth soft film is sleeved on a fifth compression roller 402 and a plurality of fourth tension rollers 406 by using a third device 400, as a seventh raw material, one end of the uniform light film 100 in the first stage obtained in the step S7 after being turned is led out from a fourth raw material roller 401, is led into a second UV curing device 407 through a gap between a sixth compression roller 404 and the fifth compression roller 402 and then is wound into a third winding roller 403, and UV glue is added between the sixth compression roller 404 and the fifth compression roller 402;

s10: the method comprises the steps that a first device 200 is used for enabling a new first raw material which is originally wound on a first raw material roller 201 to sequentially pass through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then to be wound on the first winding roller 205, the distribution of protrusions 206 on the forming roller 203 is matched with that of second groove portions 112, the outer contour surface of the protrusions 206 is matched with that of the inner contour surface of the second groove portions 112, the front surface of the first raw material is attached to the forming roller 203 at the moment, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, a driving piece drives the first winding roller 205 to rotate, the first raw material is conveyed to the first winding roller 205 through the first raw material roller 201, in the conveying process, the UV glue is cured through a UV light source 207, the UV glue is gradually cured to form a third upper film layer 119, and meanwhile the forming roller 203 forms a plurality of second soft films 12 on the surface of the third upper film layer 119, and accordingly a fifth soft film is obtained;

s11: by using the third apparatus 400, the fifth soft film is sleeved on the fifth press roll 402 and the plurality of fourth tension rolls 406, as the seventh raw material, one end of the sixth raw material is led out from the fourth raw material roll 401, passes through the gap between the sixth press roll 404 and the fifth press roll 402, is led into the second UV curing device 407, and is wound into the third take-up roll 403, the UV glue is added between the sixth press roll 404 and the fifth press roll 402, and the fifth soft film is pressed on the second raw material from the fifth press roll 402 to the outlet of the second UV curing device 407, so that the first groove 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 membrane 117 having the first groove 110 of the third upper membrane layer 109;

s12: winding one end of the first film sheet 101 in the finished product stage on a second raw material roller 302 by using a second apparatus 300 to serve as a fourth raw material, wherein the fourth raw material is wound on a second winding roller 307 by a first UV curing device after sequentially passing through a gap between a third pressing roller 304 and a fourth pressing roller 305, the fourth raw material is horizontally conveyed in the conveying process, UV glue is poured on the fourth raw material between the second raw material roller 302 and the third pressing roller 304, one end of the second film sheet 105 manufactured in the step S6 is wound on the second raw material roller 302 to serve as a fifth raw material, the fifth raw material sequentially passes through a gap between the third pressing roller 304 and the fourth pressing roller 305 and is wound on the second winding roller 307 by the first UV curing device, the fourth raw material and the fifth raw material are attached to the gap between the third pressing roller 304 and the fourth pressing roller 305 and are cured into a whole in the first UV curing apparatus 301, and a third stage light-uniformizing film 100 is formed;

s13: the method comprises the steps that a first device 200 is used for enabling a new first raw material which is originally wound on a first raw material roller 201 to sequentially pass through a first pressing roller 202, a forming roller 203 and a second pressing roller 204 and then to be wound on a first winding-up roller 205, the distribution of protrusions 206 on the forming roller 203 is matched with the distribution of first groove portions 110, the outer contour surface of the protrusions 206 is matched with the inner contour surface of the first groove portions 110, the front surface of the first raw material is attached to the forming roller 203 at the moment, liquid UV glue is poured between the first pressing roller 202 and the forming roller 203 according to preset parameters through manpower or mechanical equipment, a driving piece drives the first winding-up roller 205 to rotate, the first raw material is conveyed to the first winding-up roller 205 through the first raw material roller 201, in the conveying process, the UV glue is cured through a UV light source 207, the UV glue is gradually cured to form a second lower film layer 108, and meanwhile the forming roller 203 forms a plurality of first groove portions 110 on the surface of a third lower film layer 120, and accordingly a sixth soft film is obtained;

s14: the sixth soft film is sleeved on a fifth compression roller 402 and a plurality of fourth tension rollers 406 by using a third device 400, as a seventh raw material, one end of the turned-over uniform film 100 of the third stage obtained in the stage S12 is led out from the fourth raw material roller 401, passes through a gap between the sixth compression roller 404 and the fifth compression roller 402, is led into a second UV curing device 407, and is wound into a third winding roller 403, and UV glue is added between the sixth compression roller 404 and the fifth compression roller 402, and since the sixth soft film is pressed on the uniform film 100 from the fifth compression roller 402 to an outlet of the second UV curing device 407, the second groove part 112 is transferred to the UV glue layer on the uniform film 100, and is cured in the second UV curing device 407, the uniform film 100 of the finished stage is obtained.

The dodging film 100 manufactured by the manufacturing method can form more scattered light-gathering points on the projection surface, so that the light intensity at each position of the display screen is more uniform, the dodging effect is better, meanwhile, the solvent-free UV adhesive is used for curing and matched with the forming roller 203 forming technology, the energy is saved, the environment is protected, the space utilization rate of production equipment is high, and the production speed is improved.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and it is therefore intended that the present invention not be limited to the exact forms and details shown and described, but that various changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A reverse prism composite prism film, comprising:

wherein:

the first upper film layer, the second upper film layer and the third lower film layer respectively comprise a first main body part and first groove parts, the first groove parts are formed on the surface of the first main body part in a recessed mode and distributed in an array mode, and the extending direction of the first groove parts on the third lower film layer is opposite to the extending direction of the first groove parts on the first upper film layer and the second upper film layer;

2. The reverse prism film as claimed in claim 1, wherein: the groove surface of the first groove part comprises a prism structure, the prism structures of the first upper film layer and the second upper film layer extend upwards, and the prism structure of the third lower film layer extends downwards.

3. The reverse prism composite film according to claim 1, wherein: the groove surface of the second groove portion comprises an arc-shaped surface structure.

4. A prism film manufacturing system for manufacturing the light homogenizing film according to any one of claims 1 to 3, characterized by comprising a first apparatus and a second apparatus, 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, wherein the first raw material roller, the first compression roller, the forming roller, the second compression roller, the first winding roller, the first tension roller and the UV light source are sequentially arranged along a first raw material feeding direction, the first compression roller and the second compression roller are positioned on two opposite sides of the forming roller, preset gaps are formed among the first compression roller, the forming roller, the second compression roller and the forming roller, a plurality of protrusions are formed on the surface of the forming roller, the distribution of the protrusions is matched with the distribution of the first groove parts or the second groove parts, the outer contour surfaces of the protrusions are matched with the inner contour surfaces of the first groove parts or the second groove parts, the UV light source is positioned below the forming roller, and the first tension rollers are used for supporting and providing continuous tension control of the first raw material;

the second equipment comprises first UV curing equipment, a second raw material roller, a third compression roller, a fourth compression roller, a second tension roller and a second retraction roller, the second retraction roller is located at the outlet end of the UV curing equipment, the third compression roller and the fourth compression roller are located at the inlet end of the UV curing equipment, a preset gap is formed between the third compression roller and the fourth compression roller, the second raw material or the fourth raw material sent out by the second raw material roller and the third raw material or the 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 the fourth raw material and the fifth raw material pass through the first UV curing equipment and then are retracted into the second retraction roller, and the second tension roller is used for supporting and providing tension control over the second raw material and/or the third raw material.

5. The prism film manufacturing system according to claim 4, further comprising a third apparatus including a fourth raw material roller, a fifth pressing roller, a third take-up roller, a sixth pressing roller, a third tension roller, a fourth tension roller, and a second UV curing device, wherein:

the sixth pressing roller is abutted against the fifth pressing roller, the sixth pressing roller and the fourth tension rollers are supported by a seventh raw material, the sixth raw material and the seventh raw material are clamped between the fifth pressing roller and the sixth pressing roller, the seventh raw material extends into the second UV curing device from a gap between the fifth pressing roller and the sixth pressing roller and is attached to the sixth raw material, and after passing through the second UV curing device along with the sixth raw material, the seventh raw material is separated from the sixth raw material.

6. A method for producing a prism film, which produces a light-uniformizing film by using the prism film production system according to claim 5, comprising the steps of:

s1: the first raw material which is originally wound on the first raw material roller sequentially passes through the first compression roller, the forming roller and the second compression roller and then is wound on the first winding roller by utilizing the first equipment, the raised distribution on the forming roller is adaptive to the distribution of the first groove parts, the raised outer contour surface is adaptive to the inner contour surface of the first groove parts, at the moment, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manual or mechanical equipment, the driving part drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by utilizing a UV light source, the UV glue is gradually cured to form a first upper film layer, and meanwhile, the forming roller forms a plurality of first groove parts on the surface of the first upper film layer, so that a first membrane in a first stage is obtained;

s3: the method comprises the steps that a new first raw material wound on a first raw material roller sequentially passes through a first compression roller, a forming roller and a second compression roller by utilizing first equipment and then is wound on the first winding roller, the distribution of bulges on the forming roller is adaptive to the distribution of first groove parts, the surfaces of the bulges are adaptive to the inner contour surfaces of the first groove parts, the front surface of a substrate is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by utilizing manual or mechanical equipment, a driving part drives the first winding roller to rotate, the substrate is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by utilizing a UV light source, the UV glue is gradually cured to form a second upper film layer, and meanwhile, the forming roller forms a plurality of first groove parts on the surface of the second upper film layer, so that a second film in a first stage is obtained;

s8: utilize first equipment will be located the third stage of the even light membrane on the second roll-up roller and place on first raw materials roller after the upset to change the forming roller, at this stage the protruding distribution on the forming roller with the distribution of first slot part suits, protruding outer profile surface with the interior profile surface of first slot part suits, the even light membrane of third stage passes in proper order first compression roller, the forming roller, second compression roller after convolute in first roll-up roller, the back surface of second diaphragm laminate in at this moment on the forming roller, the first roll-up roller of driving piece drive rotates, even light membrane is carried to first roll-up roller by first raw materials roller, in transportation process, utilizes UV light source to solidify UV glue, UV glue progressively solidifies and forms the third and descend the rete, and the forming roller forms a plurality of on the surface of the third descends the rete simultaneously first slot part is formed, thereby obtains finished product even light membrane.

7. A method of manufacturing a prism film using the prism film manufacturing system of claim 5, comprising the steps of:

s5: the method comprises the following steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the convex distribution of the forming roller is matched with that of first groove portions, the convex outer contour surface of the forming roller is matched with that of the first groove portions, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by means of manpower or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by a UV light source, the UV glue is gradually cured to form a second upper film layer, and meanwhile the forming roller forms a plurality of first groove portions on the surface of the second upper film layer, so that a third soft film is obtained;

s8: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with the distribution of second groove portions, the protruding outer contour surface is matched with the inner contour surface of the second groove portions, the front surface of the first raw material is attached to the forming roller at the moment, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters through manual or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller through the first raw material roller, in the conveying process, a UV light source is used for curing the UV glue, the UV glue is gradually cured to form a second lower film layer, and meanwhile the forming roller forms a plurality of second groove portions on the surface of the second lower film layer, so that a fourth soft film is obtained;

s9: sleeving a fourth soft film on a fifth compression roller and a plurality of fourth tension rollers by using third equipment to serve as a seventh raw material, leading one end, subjected to overturning, of the uniform light film in the first stage obtained in the S7 stage out of the fourth raw material roller, leading the end, passing through a gap between a sixth compression roller and the fifth compression roller, into a second UV curing device, and then rolling into a third rolling roller, adding UV glue between the sixth compression roller and the fifth compression roller, wherein the fourth soft film is pressed on the uniform light film from the fifth compression roller to an outlet of the second UV curing device, so that a second groove part is transferred onto the UV glue layer on the uniform light film, and the uniform light film in the second stage is obtained through curing at the second UV curing device;

s10: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the protruding distribution of the forming roller is matched with that of a second groove portion, the protruding outer contour surface of the forming roller is matched with that of an inner contour surface of the second groove portion, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by means of manpower or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is solidified by a UV light source, the UV glue is gradually solidified to form a third upper film layer, and meanwhile the forming roller forms a plurality of second groove portions on the surface of the third upper film layer, so that a fifth soft film is obtained;

s11: by utilizing third equipment, sleeving the fifth flexible film on a fifth compression roller and a plurality of fourth tension rollers to serve as a seventh raw material, leading one end of the sixth raw material out of a fourth raw material roller, leading the sixth raw material into a second UV curing device through a gap between the sixth compression roller and the fifth compression roller, then rolling the sixth raw material into a third rolling roller, adding UV glue between the sixth compression roller and the fifth compression roller, pressing the first flexible film on the second raw material from the fifth compression roller to an outlet of the second UV curing device, transferring the first groove part onto the UV glue layer on the fourth raw material, and curing the first flexible film at the second UV curing device to obtain a third film with a first groove part of a third upper film layer;

s13: the method comprises the steps that by means of the first equipment, a new first raw material which is originally wound on a first raw material roller sequentially penetrates through a first compression roller, a forming roller and a second compression roller and then is wound on the first winding roller, the distribution of protrusions on the forming roller is matched with that of first groove portions, the outer contour surfaces of the protrusions are matched with the inner contour surface of the first groove portions, the front surface of the first raw material is attached to the forming roller, liquid UV glue is poured between the first compression roller and the forming roller according to preset parameters by means of manpower or mechanical equipment, a driving piece drives the first winding roller to rotate, the first raw material is conveyed to the first winding roller by the first raw material roller, in the conveying process, the UV glue is cured by a UV light source, the UV glue is gradually cured to form a third lower film layer, and meanwhile the forming roller forms a plurality of first groove portions on the surface of the third lower film layer, so that a sixth soft film is obtained;

s14: utilizing a third device, sleeving the sixth flexible film on a fifth compression roller and a plurality of fourth tension rollers, taking the sixth flexible film as a seventh raw material, leading out one end of the turned uniform light film in the first stage obtained in the S12 stage from the fourth raw material roller, leading in a third furling roller through a gap between the sixth compression roller and the fifth compression roller after a second UV curing device is introduced, adding UV glue between the sixth compression roller and the fifth compression roller, pressing the sixth flexible film on the uniform light film from the fifth compression roller to an outlet of the second UV curing device, thereby transferring a second groove part onto the UV glue layer on the uniform light film, curing the uniform light film in the second UV curing device, and obtaining the uniform light film in the finished product stage.