CN101526640B - Light guide plate and method for manufacturing same - Google Patents
Light guide plate and method for manufacturing same Download PDFInfo
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- CN101526640B CN101526640B CN2008100832229A CN200810083222A CN101526640B CN 101526640 B CN101526640 B CN 101526640B CN 2008100832229 A CN2008100832229 A CN 2008100832229A CN 200810083222 A CN200810083222 A CN 200810083222A CN 101526640 B CN101526640 B CN 101526640B
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Abstract
The invention relates to a method for manufacturing a light guide plate. The method is used for manufacturing the light guide plate of which the surface is provided with a plurality of point-like micro-optical structures. The method comprises: preparing a substrate of which the surface is provided with a concave-convex structure so as to arrange a plurality of colloid point-like objects with different sizes on the surface of the substrate in a mode of spraying drops, and carrying out a drying process so as to make the colloid point-like objects fixed on the surface of the substrate and form a plurality of preset point-like micro-optical structures. Additionally, the invention also provides the light guide plate manufactured by the method.
Description
Technical field
The present invention relates to a kind of optical sheet, and particularly relate to a kind of LGP (light guide plate, LGP) and manufacturing approach, and the backlight module that uses this LGP.
Background technology
Generally speaking, display panels itself is not luminous, so need to provide display panels required display light source through backlight module.Backlight module mainly is made up of light source, LGP and other blooming piece.Wherein, the major function of LGP is that the light that light source is sent becomes area source.
The LGP in the backlight module and the surface structure of other blooming piece are produced (for example roll extrusion, take out technology such as crowded, hot pressing, ejaculation) by forming technique mostly; Utilize " mould " in the technology to define the surface structure on its certain surface; Be used in addition also including print process and non-print process (like electrocasting, injection moulding) etc. in the method for above-mentioned optical element surface formation microstructure.
The technology of optical elements such as existing LGP or blooming is also inequality, can't support mutually and complex process, for making different micro optical structures, must design corresponding technology again, and is therefore not good for the change elasticity of design; Concrete example is as shown in Figure 1; With the flow process of utilizing Mold Making at present is example, at first need set up design load (promptly predetermined product form) and (S1), make template (stamper) prototype (S2) according to design load again; Utilize this template prototype prototype (being raw product) again (S3); If need to revise design,, just need repeat aforesaid step (S1～S3) such as newly-increased other the optical texture of the LGP that will have concaveconvex structure on the surface; Just can begin afterwards to set up the template (S4) that volume production is used, the template of utilizing volume production to use is at last carried out volume production (S5).
In approved U.S. Pat 20060291065; A kind of ink-jetting style that utilizes is disclosed at diffusion barrier or the surface of otpical leaf (light diffusing plate or optical sheet) forms lenticular method; Lenticule wherein is that to arrange by single pattern (be that lenticular size is consistent; And the mode according to fixing is arranged), and need utilize gravity act on and the placement angle of otpical leaf is controlled lenticular shape and size.
Though also disclose a kind ofly with the technology of ink-jetting style at the surface coated fluorescent powder of LGP at the TaiWan, China patent of invention TWI253769 that checks and approves bulletin, fluorescent powder is a kind of optical wavelength conversion material.Disclosed technology only terminates in the surface of fluorescent powder being coated equably LGP in this patent of invention, does not form special style and relate on the surface of LGP, like the different size or the technology of diverse location.
Summary of the invention
The present invention provides a kind of manufacturing method of light conducting board, to enhance productivity.
The present invention also provides a kind of LGP, and its production cost is lower.
Other purpose of the present invention and advantage can further be understood from the disclosed technical characterictic of the present invention.
For reaching above-mentioned one or partly or all purposes or other purpose, a kind of manufacturing method of light conducting board of the present invention, it comprises:
Set up the design load of said LGP;
Comply with said design load and make the prototype of said LGP, this prototype is the substrate that a kind of surface has convex-concave structure;
When said prototype has the change design, set up new design load according to the specification or the function of product;
Mode through liquid droplets is with the surface of colloid optics injection of material at said substrate; To form a plurality of colloid point-like things that vary in size; Said colloid point-like thing is fixed on the said surface of said substrate to form a plurality of preset point-like micro optical structures; Thereby need not to make the template prototype again, and the said prototype of direct modification;
The prototype of revise accomplishing turned over be made as the template that volume production is used; And
The said LGP of the template construct that utilizes said volume production to use.
Manufacturing method of light conducting board in the embodiments of the invention is a kind of flexible manufacturing approach of change that has; In other words when the prototype of LGP has the change design; Need not rebulid the template prototype; Just can directly make or revise prototype, and then utilize other technology (like electrocasting) directly to turn over the system volume production and use template.Therefore, the manufacturing method of light conducting board in the embodiments of the invention can be enhanced productivity, and then reduces the production cost of LGP.
For let above and other objects of the present invention, feature and advantage can be more obviously understandable, hereinafter is special lifts preferred embodiment, and combines accompanying drawing, elaborates as follows.
Description of drawings
Fig. 1 is the making process flow diagram of existing LGP;
Fig. 2 A to Fig. 2 C is the process flow diagram of the manufacturing method of light conducting board of one embodiment of the invention;
Fig. 3 is in another embodiment of the present invention, forms the synoptic diagram of colloid point-like thing in the surface of another substrate;
Fig. 4 is the synoptic diagram of the ink-jet apparatus of one embodiment of the invention;
Fig. 5 is in the manufacturing method of light conducting board of using one embodiment of the invention, LGP be designed with change the time the making process flow diagram.
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in DETAILED DESCRIPTION OF THE PREFERRED, can clearly appear below in conjunction with accompanying drawing.The direction term of being mentioned in following examples, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to accompanying drawing.Therefore, the direction term of use is to be used for explaining not to be to be used for limiting the present invention.
Fig. 2 A to Fig. 2 C is the process flow diagram of the manufacturing method of light conducting board of one embodiment of the invention.With reference to Fig. 2 A to Fig. 2 C, the manufacturing method of light conducting board of present embodiment has comprised the following step:
At first, shown in Fig. 2 A, preparation surface has had the substrate 10 of concaveconvex structure 11.At the concaveconvex structure 11 shown in Fig. 2 A for example is the groove structure with V-type cutting.
Then, shown in Fig. 2 B, form a plurality of colloid point-like things 20 that vary in size on the surface of substrate 10 with the mode of liquid droplets.Forming the method for colloid point-like thing 20, is to form colloid point-like thing 20 according to preset eject position and preset injecting times on the surface of substrate 10.Afterwards, shown in Fig. 2 C, make aforementioned colloid point-like thing 20 (shown in Fig. 2 B) be fixed on the surface of substrate 10, to form preset a plurality of point-like micro optical structures 20 '.In other words, the LGP 100 that manufactures of the manufacturing method of light conducting board of present embodiment comprises the point-like micro optical structure 20 ' that the surface has the substrate 10 of concaveconvex structure 11 and is positioned at the surface of substrate 10.In addition, be to make aforementioned colloid point-like thing 20 be fixed on the surface of substrate 10 in the present embodiment through dry treatment process.
In one embodiment of the invention, above-mentioned concaveconvex structure 11 also can be the structure of other shape, like pyramidal structure (as shown in Figure 3), cylindrical lens structure, cone-shaped structure or polygonal cone structure etc. except can be the groove structure with V-type cutting.
In addition, be used for one of the embodiment of the utensil of liquid droplets in the abovementioned steps, as shown in Figure 4.The utensil of liquid droplets can be the ink-jet apparatus that includes ink gun 30, print cartridge 31 (wherein storing the optical material of colloid) and driving mechanism.Driving mechanism comprises driver element 35 and two sliding parts 32; Wherein driver element 35 is to be electrically connected to print cartridge 31 and sliding part 32; Slides on first slide bar 33 to drive sliding part 32 (promptly sliding), and drive print cartridge 31 on second slide bar 34, slide (promptly along the slip of Y axle) along the X axle.
This ink-jet apparatus can be with the colloid optics material (for example: UV cured colloid) be sprayed on arbitrary surface (possibly be single surface or two above surfaces) of substrate 10 at random.In addition, the mode through control ink-jet number of times can form a plurality of colloid point-like things 20 that designed in advance and varied in size on the surface of substrate 10.So, can directly accomplish prototype or product, and these a plurality of colloid point-like things 20 can be stochastic distribution, and the radii size of colloid point-like thing 20 is inconsistent.
Fig. 5 is in the manufacturing method of light conducting board of using one embodiment of the invention, LGP be designed with change the time the making process flow diagram.With reference to Fig. 5, at first, set up design load (promptly predetermined product form) (I1) according to the specification or the function of actual product, again (I2) according to design load making prototype (being raw product).This prototype is the substrate 10 that a kind of surface has had concaveconvex structure 11.If need to revise design, increase other optical texture (for example lenticule or cloudy surface structure) newly such as the substrate that will have concaveconvex structure 10, as long as set up new design load (I1) according to the specification or the function of product again on the surface.Then, the mode through liquid droplets is with the surface of colloid optics injection of material at substrate 10, to form a plurality of colloid point-like things 20 (being optical texture) that vary in size.So, just can not need to make the template prototype again, and then direct modification prototype (I2).
Then, utilize other technology such as electrocasting directly this prototype that is modified completion to be turned over and be made as volume production, and the template of utilizing volume production to use is carried out volume production (I4) with template (I3).
Comparison diagram 1 can be found with Fig. 5; The substrate 10 that adopts the mode of liquid droplets can directly have concaveconvex structure 11 on the surface increases other optical texture (for example lenticule or cloudy surface structure) newly; So, do not need to make again template prototype (in other words, lacked among prior art Fig. 1 step S2) in when change of being designed with of LGP 100; With making the time of revising design shorten, also make the required time of whole technology shorten.Therefore, the manufacturing method of light conducting board of one embodiment of the invention can improve the production efficiency of LGP 100, and then reduces the production cost of LGP 100.
Though the present invention with preferred embodiment openly as above; So it is not to be used to limit the present invention, and those skilled in the art are not breaking away from the spirit and scope of the present invention; When can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.Arbitrary embodiment of the present invention in addition or claim must not reached the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (8)
1. manufacturing method of light conducting board, it comprises:
Set up the design load of said LGP;
Comply with said design load and make the prototype of said LGP, this prototype is the substrate that a kind of surface has convex-concave structure;
When said prototype has the change design, set up new design load according to the specification or the function of product;
Mode through liquid droplets is with the surface of colloid optics injection of material at said substrate; To form a plurality of colloid point-like things that vary in size; Said colloid point-like thing is fixed on the said surface of said substrate to form a plurality of preset point-like micro optical structures; Thereby need not to make the template prototype again, and the said prototype of direct modification;
The prototype of revise accomplishing turned over be made as the template that volume production is used; And
The said LGP of the template construct that utilizes said volume production to use.
2. manufacturing method of light conducting board as claimed in claim 1, the method that wherein forms a plurality of colloid point-like things that vary in size is through dry treatment process.
3. manufacturing method of light conducting board as claimed in claim 1, wherein said concaveconvex structure are the groove structure with V-type cutting.
4. manufacturing method of light conducting board as claimed in claim 1, wherein said concaveconvex structure are cylindrical lens structure.
5. manufacturing method of light conducting board as claimed in claim 1, wherein said concaveconvex structure are pyramidal structure.
6. manufacturing method of light conducting board as claimed in claim 1, wherein said concaveconvex structure are cone-shaped structure.
7. manufacturing method of light conducting board as claimed in claim 1, wherein said colloid point-like thing is a stochastic distribution, and the radii size of said colloid point-like thing is inconsistent.
8. manufacturing method of light conducting board as claimed in claim 1, the method that wherein forms said colloid point-like thing are to form said colloid point-like thing on the surface more than two of said substrate according to preset eject position and preset injecting times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100832229A CN101526640B (en) | 2008-03-04 | 2008-03-04 | Light guide plate and method for manufacturing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100832229A CN101526640B (en) | 2008-03-04 | 2008-03-04 | Light guide plate and method for manufacturing same |
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| Publication Number | Publication Date |
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| CN101526640A CN101526640A (en) | 2009-09-09 |
| CN101526640B true CN101526640B (en) | 2012-10-31 |
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| CN2008100832229A Expired - Fee Related CN101526640B (en) | 2008-03-04 | 2008-03-04 | Light guide plate and method for manufacturing same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901524A (en) * | 2012-12-27 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and manufacturing method thereof |
| CN104698527B (en) * | 2015-01-26 | 2018-01-26 | 深圳市天诺通光电科技有限公司 | A kind of method that microarray pattern is prepared on PMMA light guide plates |
| CN104698528B (en) * | 2015-01-26 | 2018-05-04 | 深圳市天诺通光电科技有限公司 | A kind of method that micro-nano structure is prepared on PS light guide plates |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580830A (en) * | 2003-07-31 | 2005-02-16 | 明基电通股份有限公司 | Method for limiting pattern for a light plate |
| CN1731242A (en) * | 2004-08-07 | 2006-02-08 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and manufacture method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580830A (en) * | 2003-07-31 | 2005-02-16 | 明基电通股份有限公司 | Method for limiting pattern for a light plate |
| CN1731242A (en) * | 2004-08-07 | 2006-02-08 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and manufacture method thereof |
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| CN101526640A (en) | 2009-09-09 |
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