CN105121939A - Manufacturing method for optical sheet and manufacturing method for planar light source device - Google Patents
Manufacturing method for optical sheet and manufacturing method for planar light source device Download PDFInfo
- Publication number
- CN105121939A CN105121939A CN201480008763.9A CN201480008763A CN105121939A CN 105121939 A CN105121939 A CN 105121939A CN 201480008763 A CN201480008763 A CN 201480008763A CN 105121939 A CN105121939 A CN 105121939A
- Authority
- CN
- China
- Prior art keywords
- resin film
- blooming piece
- functional structure
- face
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
This manufacturing method for an optical sheet (90) includes: a functional structure formation step (S3) wherein one or more functional structures (82) having a reflection function or a diffusion function are formed on at least one surface (95a) of a resin sheet (95); and a precision cutting step (S5) wherein one or more optical sheets (90) of an intended size are obtained by cutting the resin sheet, on which the one or more functional structures have been formed, by irradiating the resin sheet with a laser beam or by using a punching device.
Description
Technical field
The present invention relates to the manufacture method of blooming piece and the manufacture method of planar light source device.
Background technology
The transmission-type image display device of liquid crystal indicator etc. has the planar light source device as backlight usually.There is the backlight of so-called straight-down negative in planar light source device.Light source due to the backlight of straight-down negative is positioned at immediately below liquid crystal panel, therefore when remaining unchanged, may see the image of light source through picture.Therefore, in the backlight of straight-down negative, this optics of light diffusing sheet is provided with.Light diffusing sheet is for the parts by the light uniformization from light source, such as, utilizes the ink with light diffusing to print the surface of light diffusing sheet according to the pattern of regulation.(such as, Japanese Unexamined Patent Publication 2010-128447 publication (patent document 1)).
In addition, in planar light source device, existence has light guide plate and is provided with the planar light source device of the edge-lit of light source along its end face.The light guide plate being provided with light scattering point at an interarea of the light guide plate base forming light guide plate is there is in the light guide plate that such planar light source device uses.In this light guide plate, the light injected from the end face of light guide plate is totally reflected and advances in light guide plate base.If to the light scattering point incidence of an interarea being arranged at light guide plate, there is scattering, become the angle component of more than critical angle, and penetrate from another interarea of light guide plate in this light.Such light scattering point passes through methods formation (such as, Japanese Unexamined Patent Publication 09-068614 publication (patent document 2)) such as such as printing.
This diffuser plate and the so-called blooming piece of light guide plate, after such as manufacturing continuous resin film by extrinsion pressing etc., are cut to target size (being assembled in size during planar light source device).Then, use cutting processing machine, mechanically grind its end face.To being cut to target size like this and the resin film that end face is polished carries out for applying diffusion function, reflection function printing etc.Like this, manufactured blooming piece is transported to the position of fitting surface light supply apparatus, is jointly assembled with the miscellaneous part forming planar light source device.
But, in the manufacture method of above-mentioned existing planar light source device, manufacture to keep intact in blooming piece manufacturing process and be assembled in the blooming piece of planar light source device state, and be delivered to planar light source device assembly process, therefore in this conveying operation, the end face of blooming piece may damage.In order to prevent this damage, need the packaging of strictly carrying out the end face for the protection of blooming piece, this packaging and open bag and need labour.
Summary of the invention
Therefore, the manufacture method of the main purpose of the present invention manufacture method that is to provide a kind of blooming piece that the productivity ratio of planar light source device can be made to improve and the planar light source device that productivity ratio can be made to improve.
To achieve these goals, the invention provides following method.
The manufacture method of a < 1 > blooming piece, it comprises:
Functional structure formation process, in this operation, forms at least one face of resin film the functional structure that more than has reflection function or diffusion function; With
Accurate cut-out operation, in this operation, by irradiating laser, or by using blanking units, cutting off the resin film being formed with above-mentioned functions structure, obtaining the blooming piece of more than one target size.
＜2＞
The manufacture method of the blooming piece described in above-mentioned < 1 >; also bonding process is comprised between described functional structure formation process and described conveying operation; in this operation, to fit diaphragm at least one party in the face in the face and the side contrary with the face being formed with above-mentioned functions structure that are formed with above-mentioned functions structure.
＜3＞
The manufacture method of the blooming piece described in above-mentioned < 1 > or above-mentioned < 2 >,
Cut off in operation in above-mentioned precision, cut off the resin film being formed with more than one above-mentioned functions structure, while obtaining the blooming piece of more than one target size, make the end face of above-mentioned blooming piece have concaveconvex shape.
＜4＞
The manufacture method of the blooming piece described in any one of above-mentioned < 1 > ~ < 3 >, also comprises:
Resin forming, in this operation, is the continuous resin film along a direction continuous print sheet by resin film molding procedure; With
Rough cut operation, in this operation, cuts off the above-mentioned continuous resin film come from above-mentioned resin film molding procedure continus convergence, obtains the rough lumber monolithic diaphragm that size is greater than above-mentioned target size,
Above-mentioned resin film is the above-mentioned rough lumber monolithic diaphragm obtained by above-mentioned rough cut operation.
＜5＞
The manufacture method of blooming piece described any one of above-mentioned < 1 > ~ < 4 >, also comprises between described functional structure formation process and described conveying operation:
Packaging process, in this operation, packs above-mentioned resin film;
Conveying operation, in this operation, the above-mentioned resin film that bull ladle installs; And
Open job contract sequence, in this operation, bag is opened to above-mentioned resin film that is packaged and conveying.
＜6＞
A manufacture method for planar light source device, comprising:
The operation of blooming piece is manufactured by method described any one of above-mentioned < 1 > ~ < 5 >, and
Assemble above-mentioned blooming piece and light supply apparatus to manufacture the operation of planar light source device.
In the manufacture method of the blooming piece of above-mentioned < 1 >, by irradiating laser or using blanking units to implement accurate cut-out operation, therefore do not need the end face grinding the blooming piece obtained.Therefore, even if implement accurate to cut off operation after functional structure formation process, the blooming piece obtained also can be kept intact and to be used as product.Thus, to be formed after functional structure utilizing functional structure formation process, accurate cut off operation before, do not apply strict packaging and just can carry the resin film being formed with functional structure.On the other hand, in the manufacture method of above-mentioned existing blooming piece, due to needs face machined flat before formation functional structure, therefore cannot implement accurate cut-out operation after functional structure formation process.Therefore, when conveying is formed with resin film (blooming piece) of functional structure, in order to protect end face, need to apply strict packaging, it is packed and opens to wrap needs suitable labour.In the manufacture method of blooming piece of the present invention, do not apply strict packaging and just can carry the resin film being formed with functional structure, therefore, it is possible to reduce its packaging and the labour opened required for bag, productivity ratio improves.
In the manufacture method of the blooming piece of above-mentioned < 2 >, if to the face bonding protective film forming meritorious energy structure, just can prevent the face being formed with functional structure from damaging in conveying.If to the face bonding protective film of the side contrary with the face being formed with functional structure, then can prevent the face of the side contrary with the face being formed with functional structure from damaging in conveying.
In the manufacture method of above-mentioned existing blooming piece, when blooming piece end face being applied with concaveconvex shape is transported to the assembly process of planar light source device, need the strict packaging for the protection of this end face, this operation needs the time.In the manufacture method of the blooming piece of above-mentioned < 3 >, due to accurate cut-out operation can be implemented after conveying etc., therefore, it is possible to reduce for preventing conveying to the packaging of the damage of end face and the labour opening bag.
According to the manufacture method of blooming piece of the present invention and the manufacture method of planar light source device, productivity ratio can be made to improve.
Accompanying drawing explanation
Fig. 1 is the overall skeleton diagram of manufacturing installation used in one embodiment.
Fig. 2 is the figure of the machining state of the resin film represented in a kind of each operation of embodiment.
Fig. 3 is the flow chart of the operation representing a kind of embodiment.
Fig. 4 is the figure for being described other embodiment.
Detailed description of the invention
Below, with reference to accompanying drawing, one embodiment of the present invention are described.In addition, the Reference numeral identical to identical or suitable element annotation, and the repetitive description thereof will be omitted.In addition, accompanying drawing dimension scale might not with illustrate consistent.In addition, in representing and illustrate " on ", the word in the direction of D score etc. facilitates term based on state shown in the drawings.
Fig. 1 is the overall skeleton diagram of manufacturing installation used in one embodiment.Fig. 2 is the figure of the machining state of the resin film represented in a kind of each operation of embodiment.As shown in Figure 1, manufacture the device 1 (hereinafter referred to as " planar light source device manufacturing installation 1 ") of planar light source device possess be arranged at primary importance P1 resin film forming part 10, rough cut portion 20 and functional structure forming portion 30; Be arranged at accurate cutting portion 50 and the department of assembly 60 of second place P2; And the delivery section 40 be arranged between primary importance P1 and second place P2.First, the device for the manufacture of light guide plate (blooming piece) is described.
First, be described being arranged at the resin film forming part 10 of primary importance P1, rough cut portion 20 and functional structure forming portion 30.
Resin film forming part 10 is parts of the shaping continuous resin film 80 as the resin along direction (throughput direction) continuous print sheet.The extrusion forming device being carried out shaping continuous resin film 80 by the thermoplastic resin of extrusion molten can be used in resin film forming part 10.Extrusion forming device having resin charge mouth 11 for dropping into the thermoplastic resin as raw material, for the extruder 12 of heating and melting thermoplastic resin, to extrude be extruded the first compression roller 14, second compression roller 15 into the continuous resin film 80 of sheet and the 3rd compression roller 16 from punch die 13 for the punch die 13 that is sheet by the molten resin supplied from extruder 12 extruding and being used for.
Acrylic resin, styrene resin, polymethyl methacrylate (PMMA) resin, polystyrene (PS) resin, MS (copolymer of methyl methacrylatestyrene) resin, polycarbonate resin, AS (acrylonitritrile-styrene resin) resin, cycloolefin resin, polyvinyl resin, acrylic resin and pet resin etc. are comprised at the example of resin.In addition, also the additives such as light diffusing agent, ultra-violet absorber, heat stabilizer, photopolymerization stabilizing agent can be added in these resins.
Rough cut portion 20 is configured between resin film forming part 10 and functional structure forming portion 30.Rough cut portion 20 cuts off the continuous resin film 80 from resin film forming part 10 continus convergence, obtains the part that size is greater than the rough lumber monolithic diaphragm 95 of the size of the blooming piece of target.The laser disconnecting device utilizing laser is comprised at the example in rough cut portion 20.As the LASER Light Source of laser disconnecting device, suitably use such as carbon dioxide laser, YAG laser, excimer laser etc.In addition, the example in rough cut portion 20 also can be guillotine, rotating knife and cutter etc.
Functional structure forming portion 30 forms more than one functional structure at a face 95a of the rough lumber monolithic diaphragm 95 by resin film forming part 10 continus convergence.Functional structure makes the dot pattern 82 of the irreflexive light scattering point (having the function part of reflection function) 81 of light be formed by being such as configured with the specification of regulation.Above-mentioned functions structure is formed by printing light scattering point at a face 95a of rough lumber monolithic diaphragm 95.
As functional structure forming portion 30, the ink discharge device being carried out print point pattern 82 by the ink of the light reflective of a face 95a exudate drop-wise to rough lumber monolithic diaphragm 95 can be used.The mode that ink discharge device can be discharged at the whole width of rough lumber monolithic diaphragm 95 with the ink of the droplet-like of such as being discharged by multiple nozzle is simultaneously formed.Preferred while make rough lumber monolithic diaphragm 95 with certain speed continuous moving, by discharging the dot pattern 82 that ink printed specifies.In addition, also can repeat under the state stopped by rough lumber monolithic diaphragm 95, to discharge ink and make rough lumber monolithic diaphragm 95 move to next print position just to stop (intermittent delivery), print the dot pattern 82 of regulation.As shown in Figure 2, in functional structure forming portion 30, print the dot pattern 82 of regulation at the region 90a becoming objective optics diaphragm.
As the ink being discharged to rough lumber monolithic diaphragm 95, such as, as long as by solidification or the dry ink forming light scattering point, use ultraviolet curing ink, water-base ink or solvent-based inks.Even if among these inks, from viewpoints such as the simplifications of environmental cure, preferred ultraviolet curing ink and water-base ink.When using ultraviolet curing ink, UV lamp etc. is utilized to be cured.When using water-base ink or solvent-based inks, utilizing the dry ink of drying device, forming light scattering point.When using ink discharge device as functional structure forming portion 30, also can the plasma treatment portion implementing plasma treatment be set closer to upstream side compared with functional structure forming portion 30.
Next, the delivery section 40 be arranged between primary importance P1 and second place P2 is described.In other words, delivery section 40 is configured between functional structure forming portion 30 and accurate cutting portion 50.Delivery section 40 is the parts rough lumber monolithic diaphragm 95 being formed with the dot pattern 82 produced at primary importance P1 being delivered to second place P2.Rough lumber monolithic diaphragm 95 can be carried via staff between primary importance P1 and second place P2, also can utilize the conveyer conveying rough lumber monolithic diaphragm 95 as transfer robot.
In addition, in delivery section 40, automobile, railway, ship, aircraft also can be used to carry rough lumber monolithic diaphragm 95.Rough lumber monolithic diaphragm 95 is after utilizing delivery section 40 to carry; critically cut off by accurate cutting portion 50 and remove its end; become the blooming piece of target size, therefore when utilizing delivery section 40 to carry, without the need to strictly carrying out the packaging of the end face for the protection of rough lumber monolithic diaphragm 95.
In addition, in the present invention, the cut-out of the resin film carried out owing to utilizing accurate cutting portion 50 is by irradiation laser or use blanking units and implement, therefore without the need to grinding the end face of the blooming piece obtained.As described in background technology one hurdle, the cut-out in the past owing to not using laser, blanking units to carry out continuous resin film, therefore needs the end face of the resin film after abrasive cutting-off.If the end face of grind resin diaphragm applying diffusion function, after reflection function, then due to vibration now, cutting swarf, be applied with diffusion function, the surface of resin film of reflection function may be damaged, pollute, therefore not preferred.Therefore, in the past before applying diffusion function, reflection function, the end face of grind resin diaphragm.That is, in the past continuous resin film cut-out being become the size of objective optics diaphragm and after grinding its end face, applying diffusion function, reflection function, blooming piece is manufactured.When above-mentioned blooming piece dispatches from the factory, in order to not damage the end face of blooming piece, need strictly to carry out for the protection of packaging, this packaging and open bag and need labour.But according to the present invention, because rough lumber monolithic diaphragm 95 dispatches from the factory, the packaging for the protection of end face also can be so strict.
In order to carry a large amount of rough lumber monolithic diaphragms 95, preferably by rear packagings such as multiple rough lumber monolithic diaphragm 95 overlaps, after utilizing delivery section 40 to carry, open bag.
In addition, this packaging and the operation of opening bag do not illustrate in FIG.
In addition, as mentioned above, this packaging may not be strict packaging.
Accurate cutting portion 50 is the parts critically cut off the rough lumber monolithic diaphragm 95 being formed with dot pattern 82 carried by delivery section 40 thus form the light guide plate 90 of target size.Accurate cutting portion 50 preferably use does not need the shearing device of the milled processed in the sectility face after cutting off, in other words, while cutting off, apply the shearing device of mirror finish, serration (sawtooth) processing (with reference to Fig. 4 (a)) etc.Accurate cutting portion 50 like this comprises the laser disconnecting device utilizing laser.As the LASER Light Source of laser disconnecting device, suitably use such as carbon dioxide laser, YAG laser, excimer laser etc.
Critically cut off the picture dimension being sized to the planar light source device being applicable to becoming target during rough lumber monolithic diaphragm 95.Its size is generally more than the size of short side direction 120mm, long side direction 220mm, below the size of short side direction 1250mm, long side direction 2220mm.In addition, cornerwise length when critically cutting off rough lumber monolithic diaphragm 95 is generally more than 25cm below 250cm.
Department of assembly 60 is at least assembled with light guide plate 90, light supply apparatus 71 and connects the parts of light guide plate 90 and light supply apparatus 71 and manufacture the part of planar light source device 73.As connecting the example of light guide plate 90 with the parts of light supply apparatus 71, framework can be enumerated.In department of assembly 60, the light guide plate 90 utilizing accurate cutting portion 50 to obtain is held by holding handle 61, and is moved to the position being configured with framework.In addition, light supply apparatus 71 is held by holding handle 61, and moves to the position being configured with framework.And light guide plate 90 and light supply apparatus 71 are fixed via framework, fitted to be planar light source device 73.
In the manufacturing installation 1 shown in Fig. 1, continuous resin film 80 and rough lumber monolithic diaphragm 95 use conveying device from accurate cutting portion 50 from resin film forming part 10 to the conveying of functional structure forming portion 30 and rough lumber monolithic diaphragm 95 and light guide plate 90 to the conveying of department of assembly 60.The example of this conveying device comprises conveying roller, travelling table, conveyer belt, conveying roller and air suspension conveyor etc.
Next, an example of the manufacturing process of light guide plate 90 is described.Fig. 3 is the flow chart of the operation representing a kind of embodiment.As shown in Figure 3, the manufacturing process of the light guide plate in present embodiment comprises: at resin film molding procedure S1, rough cut operation S2 and the functional structure formation process S3 of primary importance P1 enforcement; Conveying operation S4; The precision implemented at second place P2 cuts off operation S5 and assembly process S6.Below, in order each operation is described.
First, the operation implemented at primary importance P1 is described.Shaping continuous resin film 80 in resin film molding procedure S1.The extrinsion pressing of the next shaping continuous resin film of thermoplastic resin of extrusion molten is comprised at the example of the method for shaping continuous resin film 80.In extrinsion pressing, as thermoplastic resin, melting mixing and extrude such as acrylic resin, utilizes various compression roller to clamp extruding.Thus, the continuous resin film 80 of the thickness of shaping regulation.The thickness of continuous resin film 80 is generally more than 0.1mm, below 2.0mm, is preferably more than 0.1mm, below 1.0mm, is more preferably more than 0.2mm, below 0.7mm.
Rough cut operation S2 is implemented between resin film molding procedure S1 and functional structure formation process S3.In rough cut operation S2, cut off the continuous resin film 80 transported by resin film molding procedure S1, obtain the rough lumber monolithic diaphragm 95 (with reference to Fig. 2) that size is greater than the size of objective optics diaphragm.The example obtaining the method for rough lumber monolithic diaphragm 95 cutting off continuous resin film 80 comprises the method utilizing the continuous resin film 80 of laser cutting.In addition, cutting off the example that continuous resin film 80 obtains the method for rough lumber monolithic diaphragm 95 also can be the method utilizing guillotine, rotating knife and cutter etc.
In functional structure formation process S3, a face 95a of the rough lumber monolithic diaphragm 95 transported by rough cut operation S2 forms more than one functional structure.Functional structure is such as the dot pattern 82 that the specification that specifies is configured with the light scattering point (function part) 81 with reflection function.Above-mentioned functions structure by printing light scattering point and being formed on a face 95a of rough lumber monolithic diaphragm 95.As comprising with the dot pattern 82 of the specification of regulation configuration along with the distance with the end face becoming the plane of incidence becomes large and the shape of light scattering point 81 becomes large dot pattern and light scattering point 81 density uprises dot pattern etc.The ink-jet method of the face 95a ink of the droplet-like of being discharged by nozzle being expelled to rough lumber monolithic diaphragm 95 is comprised at the example of the method printing above-mentioned dot pattern 82.
In conveying operation S4, the rough lumber monolithic diaphragm 95 being formed with functional structure is transported to from primary importance P1 implements the second place P2 that precision described later cuts off operation S5.In this conveying operation S4, automobile, railway, ship, aircraft also can be used to carry the rough lumber monolithic diaphragm 95 being formed with functional structure.Because rough lumber monolithic diaphragm 95 is after conveying operation S4; cut off in operation S5 in precision and critically cut off and remove its end; the blooming piece of target size can be obtained, therefore in conveying operation S4, without the need to strictly carrying out the packaging of the end face for the protection of rough lumber monolithic diaphragm 95.
In order to carry a large amount of rough lumber monolithic diaphragms 95, preferably by rear packagings such as multiple rough lumber monolithic diaphragm 95 overlaps, after utilization conveying operation S4 carries, open bag.Wherein, this packaging may not be strict packaging.
Cutting off in operation S5 in precision, by having the rough lumber monolithic diaphragm 95 of dot pattern 82 to be critically cut to target size by being transported to the accurate printing cutting off operation S5, forming light guide plate (blooming piece) 90.The method utilizing laser cutting rough lumber monolithic diaphragm 95 is comprised at the example that rough lumber monolithic diaphragm 95 is critically cut to the method for target size.In addition, as the method cutting off rough lumber monolithic diaphragm 95, while cutting off, preferably apply the method for mirror finish, as shown in Fig. 4 (a), while cutting off, apply the method for sawtooth (serration) processing (applying the processing of the concaveconvex shape extended along the thickness direction of continuous resin film in the face becoming end face).
In assembly process S6, at least assemble light guide plate 90, light supply apparatus 71 and connect light guide plate 90 and the parts of light supply apparatus 71, manufacture planar light source device 73.As connecting the example of light guide plate 90 with the parts of light supply apparatus 71, enumerate framework.Also at frame assembled planar light source device, liquid crystal indicator and blooming piece etc., the operation manufacturing transmission-type image display device can be continued.
Next, the action effect of the manufacture method of above-mentioned light guide plate and planar light source device is described.In the manufacture method of this planar light source device, because functional structure formation process S3 and the accurate operation S5 that cuts off clips the conveying operation S4 that the rough lumber monolithic diaphragm 95 being formed with dot pattern 82 is transported to second place P2 from primary importance P1, be therefore interrupted at these inter processes.The accurate operation S5 and assembly process S6 that cuts off is not interrupted at these inter processes and performs continuously.Here, if the manufacture method of the manufacture method of above-mentioned existing planar light source device and the planar light source device of above-mentioned embodiment is compared, then the former conveying is critically cut to target size and the blooming piece that obtains, and the latter's conveying be critically cut to target size before the blooming piece (being rough lumber monolithic diaphragm 95 here) of state.In the manufacture method of the planar light source device of above-mentioned embodiment, even if size is greater than the end face damage of the blooming piece (being rough lumber monolithic diaphragm 95) of target size here in conveying, this broken parts also can cut off cut-off in operation S5 removal in precision.That is, in precision cut-out operation S5, new end face is formed.Keeping intact is assembled in planar light source device 73 to be continuously formed with the blooming piece (here for light guide plate 90) of new end face.Therefore, it is possible to cancel, reduce the damage of the end face of the blooming piece obtained to prevent from being critically cut to target size and open bag in the strict packaging of the end face for the protection of blooming piece of carrying out in the manufacture method of above-mentioned existing planar light source device and assembly process.Its result, can make productivity ratio improve.
Above, be that one embodiment of the present invention are illustrated, but the present invention is not limited to above-mentioned embodiment, can various change be carried out within a range not departing from the gist of the invention.
In the above-described embodiment, as the method for shaping continuous resin film 80, enumerate extrinsion pressing and use the example of the shaping continuous resin film 80 of extrusion forming device to be illustrated as an one example, but the present invention is not limited thereto.Such as, the foundry goods method for making etc. that template cast raw material makes it polymerization forming can be used in.The foundry goods template making process etc. of the continous way of the endless belt formed by continuous stainless-steel sheet etc. is include the use of in the example of foundry goods method for making.Specifically, being included in be injected by the spatial portion formed with the opposed faces of a pair endless belt of the opposed motion in interval of regulation and two packing rings moving along with the motion of this endless belt makes polymerization initiator dissolve and the polymerism raw material that obtains, this polymerism polymerizable raw material is solidified, shaping sheet polymer is peeled off from endless belt and the method etc. of taking-up.
In the above-described embodiment, as the method for print point pattern 82 on a face 95a of rough lumber monolithic diaphragm 95, list ink-jet method, in addition, as an one example, list and use the example of ink discharge device print point pattern 82 on a face 95a of rough lumber monolithic diaphragm 95 to be described, but the present invention is not limited thereto.
Such as, silk screen print method is comprised at the example of the method for print point pattern 82.In addition, in functional structure formation process S3, formed the method being configured with the functional structure of the function part with reflection function or diffusion function with the specification of regulation comprise irradiate laser formed the functional structure be made up of multiple recess method, be formed with by pressing the method etc. that small concavo-convex press mold forms the functional structure be made up of multiple recess or protuberance.
In the above-described embodiment, as printing the cutting-off method having the rough lumber monolithic diaphragm 95 of dot pattern 82, list the method using laser cutting, in addition, as an one example, list the example using laser disconnecting device to cut off rough lumber monolithic diaphragm 95 to be described, but the present invention is not limited thereto.Such as, also can utilize the method for the rough lumber monolithic diaphragm 95 having dot pattern 82 according to the die-cut printing of the shape of light guide plate 90, form light guide plate (blooming piece) 90.The blanking units with Thomson cutter etc. is comprised at the example that rough lumber monolithic diaphragm 95 is punched to the Dire cutting type of desired shape.
In the above-described embodiment, list in resin film molding procedure S1, the example of concavo-convex etc. shape is not applied on the surface of outgoing plane side of the light becoming light guide plate 90, namely, list and do not form concavo-convex example at any one side face of the first ~ three compression roller 14,15,16 of extrusion forming device and be illustrated, but the present invention is not limited thereto.Such as, in resin film molding procedure S1, the convex strip portions etc. that the surface that also can be molded in continuous resin film 80 becomes light emergence face side extends along a direction.In this case, the side face of the second compression roller 14 in extrusion forming device concavo-convex grade can be set and shaping convex strip portions etc.In addition, in the same manner, the crowning of diffusion function can also shapingly be had.
In addition, in the above-described embodiment, list in functional structure formation process S3 along the width of rough lumber monolithic diaphragm 95 form a region 90a and this region 90a print point pattern 82 example and be illustrated, but the present invention is not limited thereto.Such as, also can form two region 90a (with reference to Fig. 4 (b)) along the width of rough lumber monolithic diaphragm 95, or form more than three.Print a dot pattern 82 at each region 90a and formed.And each dot pattern 82 can obtain a light guide plate (blooming piece) 90.
In the conveying operation S4 of above-mentioned embodiment, also can by the face that prints and with under the state of diaphragm of having been fitted by least one party in the face (non-print face) of face opposite side printed, conveying rough lumber monolithic diaphragm 95.That is, the bonding process of laminating diaphragm also can be possessed before conveying operation S4.Thereby, it is possible to prevent printing surface and the damage of non-print when carrying.In addition, in this case, the operation possessing the agent of coating anti-static electricity interference in the downstream of the bonding process of laminating diaphragm can be also configured to.
In addition, in the above-described embodiment, list the example of the light guide plate that the backlight that manufactures so-called edge-lit uses, namely, print the example of the dot pattern 82 be made up of the light scattering point 81 with reflection function at a face 95a of rough lumber monolithic diaphragm 95 and be illustrated, but the present invention is not limited thereto.Such as, in the present invention, the light diffusing sheet (blooming piece) that the backlight that also can form so-called straight-down negative uses.In this case, in above-mentioned functions structure formation process S3, at the dot pattern that a face 95a of rough lumber monolithic diaphragm 95 uses formation such as having the ink of light diffusing to be made up of diffusion point (having the function part of diffusion function).Even if when manufacturing such light diffusing sheet, productivity ratio also can be made to improve.In addition, the light diffusing sheet manufactured so also can configure according to printing the mode having the face of dot pattern to become light emergence face, also can configure according to the mode becoming light entrance face.But, be preferably configured to print the mode having the face of dot pattern to become light emergence face.
Utilizability in industry
According to the manufacture method of blooming piece of the present invention and the manufacture method of planar light source device, productivity ratio can be made to improve.
Description of reference numerals
1 ... planar light source device manufacturing installation; 10 ... resin film forming part; 11 ... resin charge mouth; 12 ... extruder; 13 ... punch die; 14 ... first compression roller; 15 ... second compression roller; 16 ... 3rd compression roller; 20 ... rough cut portion; 30 ... functional structure forming portion; 40 ... delivery section; 50 ... accurate cutting portion; 60 ... department of assembly; 61 ... hold handle; 71 ... light supply apparatus; 73 ... planar light source device; 80 ... continuous resin film; 81 ... light scattering point (function part); 82 ... dot pattern (functional structure); 90 ... light guide plate (blooming piece), 90a ... critically be cut to target size and the region (product area) obtained, 95 ... rough lumber monolithic diaphragm (resin film); S1 ... resin film molding procedure; S2 ... rough cut operation; S3 ... functional structure formation process; S4 ... conveying operation; S5 ... accurate cut-out operation; S6 ... assembly process; P1 ... primary importance; P2 ... the second place.
Claims (6)
1. a manufacture method for blooming piece, is characterized in that, comprising:
Functional structure formation process, in this operation, forms at least one face of resin film the functional structure that more than has reflection function or diffusion function; With
Accurate cut-out operation, in this operation, by irradiating laser or by using blanking units, cutting off the resin film being formed with the above functional structure, obtaining the blooming piece of more than one target size.
2. the manufacture method of blooming piece according to claim 1, is characterized in that,
Between described functional structure formation process and described conveying operation, also comprise bonding process, in this operation, to fit diaphragm at least one party in the face in the face and the side contrary with the face being formed with described functional structure that are formed with described functional structure.
3. the manufacture method of blooming piece according to claim 1 and 2, is characterized in that,
Cut off in operation in described precision, cut off the resin film being formed with the above functional structure, while obtaining the blooming piece of more than one target size, make the end face of described blooming piece have concaveconvex shape.
4. the manufacture method of blooming piece according to claim 1 and 2, is characterized in that,
Also comprise:
Resin forming, in this operation, is the continuous resin film along a direction continuous print sheet by resin film molding procedure; With
Rough cut operation, in this operation, cuts off the described continuous resin film come from described resin film molding procedure continus convergence, obtains the rough lumber monolithic diaphragm that size is greater than described target size,
Described resin film is the described rough lumber monolithic diaphragm obtained by described rough cut operation.
5. the manufacture method of blooming piece according to claim 1 and 2, is characterized in that,
Also comprise between described functional structure formation process and described conveying operation:
Packaging process, in this operation, packs described resin film;
Conveying operation, in this operation, the described resin film that bull ladle installs; And
Open job contract sequence, in this operation, bag is opened to described resin film that is packaged and conveying.
6. a manufacture method for planar light source device, is characterized in that, comprising:
The operation of blooming piece is manufactured by the method according to any one of Claims 1 to 5; And
Assemble described blooming piece and light supply apparatus to manufacture the operation of planar light source device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-031356 | 2013-02-20 | ||
| JP2013031356A JP5705895B2 (en) | 2013-02-20 | 2013-02-20 | Optical sheet manufacturing method and surface light source device manufacturing method |
| PCT/JP2014/054244 WO2014129609A1 (en) | 2013-02-20 | 2014-02-17 | Manufacturing method for optical sheet and manufacturing method for planar light source device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105121939A true CN105121939A (en) | 2015-12-02 |
| CN105121939B CN105121939B (en) | 2017-08-22 |
Family
ID=51391389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480008763.9A Expired - Fee Related CN105121939B (en) | 2013-02-20 | 2014-02-17 | The manufacture method of blooming piece and the manufacture method of planar light source device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5705895B2 (en) |
| KR (1) | KR20150119371A (en) |
| CN (1) | CN105121939B (en) |
| TW (1) | TWI615643B (en) |
| WO (1) | WO2014129609A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307906A (en) * | 2017-07-27 | 2019-02-05 | 群光电能科技股份有限公司 | Light guide member and method for manufacturing the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321896A (en) * | 2000-04-26 | 2001-11-14 | 夏普株式会社 | Optical film, its mfg. method and device |
| JP2009082962A (en) * | 2007-09-28 | 2009-04-23 | Fujifilm Corp | Method for producing piece sheet |
| CN101526641A (en) * | 2008-03-07 | 2009-09-09 | 洪文修 | Production line for light guide plates |
| CN202098890U (en) * | 2011-05-23 | 2012-01-04 | 葉逸仁 | Device for preparing three-dimensional patterns on diaphragm |
| CN102540288A (en) * | 2011-12-28 | 2012-07-04 | 广州市白云信达反光材料有限公司 | High-light-transmittance diffusion type thin film and preparation method thereof |
| CN102825778A (en) * | 2012-09-20 | 2012-12-19 | 福建省晋江市夜光达反光材料有限公司 | Microprism reflective membrane production device |
| JP2012252209A (en) * | 2011-06-03 | 2012-12-20 | Sumitomo Chemical Co Ltd | Light guide plate with protective film |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4673414B2 (en) * | 2009-03-18 | 2011-04-20 | 日東電工株式会社 | Manufacturing method of liquid crystal display element |
| JP5689336B2 (en) * | 2011-03-03 | 2015-03-25 | 日東電工株式会社 | Heat release type adhesive sheet |
-
2013
- 2013-02-20 JP JP2013031356A patent/JP5705895B2/en not_active Expired - Fee Related
-
2014
- 2014-02-17 CN CN201480008763.9A patent/CN105121939B/en not_active Expired - Fee Related
- 2014-02-17 KR KR1020157025465A patent/KR20150119371A/en not_active Application Discontinuation
- 2014-02-17 WO PCT/JP2014/054244 patent/WO2014129609A1/en active Application Filing
- 2014-02-18 TW TW103105326A patent/TWI615643B/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321896A (en) * | 2000-04-26 | 2001-11-14 | 夏普株式会社 | Optical film, its mfg. method and device |
| JP2009082962A (en) * | 2007-09-28 | 2009-04-23 | Fujifilm Corp | Method for producing piece sheet |
| CN101526641A (en) * | 2008-03-07 | 2009-09-09 | 洪文修 | Production line for light guide plates |
| CN202098890U (en) * | 2011-05-23 | 2012-01-04 | 葉逸仁 | Device for preparing three-dimensional patterns on diaphragm |
| JP2012252209A (en) * | 2011-06-03 | 2012-12-20 | Sumitomo Chemical Co Ltd | Light guide plate with protective film |
| CN102540288A (en) * | 2011-12-28 | 2012-07-04 | 广州市白云信达反光材料有限公司 | High-light-transmittance diffusion type thin film and preparation method thereof |
| CN102825778A (en) * | 2012-09-20 | 2012-12-19 | 福建省晋江市夜光达反光材料有限公司 | Microprism reflective membrane production device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307906A (en) * | 2017-07-27 | 2019-02-05 | 群光电能科技股份有限公司 | Light guide member and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5705895B2 (en) | 2015-04-22 |
| KR20150119371A (en) | 2015-10-23 |
| JP2014160625A (en) | 2014-09-04 |
| TWI615643B (en) | 2018-02-21 |
| WO2014129609A1 (en) | 2014-08-28 |
| CN105121939B (en) | 2017-08-22 |
| TW201439619A (en) | 2014-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9116264B2 (en) | Light guide plate producing method, die structure, transfer molding apparatus, light guide plate, area light source device, liquid crystal display device, and mobile device | |
| CN101526641A (en) | Production line for light guide plates | |
| US9618180B2 (en) | Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device | |
| US20140124965A1 (en) | Transfer molding method and transfer molding apparatus | |
| JP2009082962A (en) | Method for producing piece sheet | |
| KR20120135110A (en) | Manufacturing method of light guide plate with protective film | |
| US20140322379A1 (en) | Extrusion molding device | |
| CN108032501A (en) | A kind of automatic production process of light diffusing sheet | |
| CN105121939A (en) | Manufacturing method for optical sheet and manufacturing method for planar light source device | |
| TW201418058A (en) | Transfer formation method, mold structure, transfer formation device and optical member | |
| JP2014160201A (en) | Method for manufacturing optical sheet | |
| JP5986490B2 (en) | Manufacturing method of optical sheet | |
| CN104325633A (en) | Light guide plate transfer molding method, light guide plate, and planar light source apparatus | |
| CN104797403A (en) | Die structure, transfer molding device, and transfer molding method | |
| KR101535771B1 (en) | A Flexible Cutting Die having semi-automatic trancefer part for sheet | |
| KR101422391B1 (en) | Mold structure, transcription molding device, transcription molding method, optical member, surface light source device, lcd device and mobile device | |
| KR101415873B1 (en) | extrusion forming roller for light guide plate having light enterance edge | |
| KR20140125106A (en) | light guide plate having light enterance edge, extruder device and method thereof | |
| KR102455282B1 (en) | A Automatic roll sheet punching device equipped with an anti-shake pilot for punching roll sheets | |
| TW201437703A (en) | Composite light guiding plate, method and device for manufacturing same | |
| CN107867101B (en) | Method for producing resin original plate, method for producing printing plate, and method for producing liquid crystal display element | |
| KR20140063680A (en) | Method for manufacturing film | |
| TWI407164B (en) | Guide-light plate | |
| JP7020405B2 (en) | Optical element plate structure and manufacturing method of optical element | |
| JP2008132715A (en) | Forming apparatus and forming method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20200217 |