CN102385094A - Light guide plate and fabrication method thereof - Google Patents
Light guide plate and fabrication method thereof Download PDFInfo
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- CN102385094A CN102385094A CN201010270925XA CN201010270925A CN102385094A CN 102385094 A CN102385094 A CN 102385094A CN 201010270925X A CN201010270925X A CN 201010270925XA CN 201010270925 A CN201010270925 A CN 201010270925A CN 102385094 A CN102385094 A CN 102385094A
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Abstract
A light guide plate comprises a transparent substrate; an adhesive layer mixed with fluorescent ink is attached on one surface of the transparent substrate, and a preset pattern is formed on the adhesive layer mixed with the fluorescent ink. The method for fabricating the light guide plate includes the following steps: a mold with the preset pattern is provided; solution-like adhesive mixed with the fluorescent ink is poured into the mold; the transparent substrate is placed upon the solution-like adhesive mixed with the fluorescent ink; the solution-like adhesive mixed with the fluorescent ink is solidified to be stuck on the transparent substrate; and after the mold is removed, the light guide plate is formed. The light guide plate comprising the adhesive layer mixed with the fluorescent ink can realize backlight color; the fabrication method for the light guide plate directly mixes the fluorescent ink in the adhesive, the fabrication process is simple, and the cost is low.
Description
Technical field
The present invention relates to a kind of LGP and manufacturing approach thereof.
Background technology
LGP is one of main element of electronic product LCD, and the LGP major function is that the incident light with pointolite becomes area source, and brightness is even, and the guiding LCDs is used to represent the brightness of backlight and display screen.
It is the area source that the pointolite of backlight is converted into homogeneous that LGP mainly acts on; In order to improve the homogeneity of beam projecting; Generally a plurality of sites are set on the LGP surface; Be used for the total reflection condition of broken beam, and make the homogeneity of its scattering, and then improve the whole optical property of module backlight with raising LGP outgoing beam in the LGP internal transmission.
At present the manufacturing approach of light guide plate mesh point is broadly divided into mode of printing and non-mode of printing, and wherein the printing-type processing procedure is because the ink viscosity of net-point printing is not easy control, and the product yield is low thereby have by the substituted trend of non-printing process.The problem that exists is following: mode of printing: 1, mode of printing adopts screen printing, and the light guide plate mesh point precision receives the restriction of screen printing.2, printing-ink adopts solvent type ink, and its set time is long, so molding cycle is long; Because the ink viscosity of net-point printing is not easy control, the product yield is low thereby have by the substituted trend of non-printing process.Non-mode of printing: the leaded light pattern that designs (corresponding with the surface configuration of LGP) is produced on the mould, adopts modes such as ejection formation or impression to produce LGP with leaded light pattern; Exist and ask as follows: 1, the forming technique difficulty of LGP is higher, invests bigger.2, after leaded light site Design and Machining forms, cannot change, dirigibility is not high, and light guide plate receives the mould restriction can not realize ultra-thin light guide board.The LGP of non-mode of printing need have certain thickness according to oneself requirement, so occupy certain space, it is thinner that electronic product can not be accomplished, and above two kinds of methods all can't realize backlight color.
The method that realizes backlight color at present is on LGP, to paste colored diffusion barrier, and colored diffusion barrier is a semitransparent thin film body, and its surperficial silk-screen has the fluorescence oil reservoir.But its technology is more loaded down with trivial details, and cost is higher, colored diffusion barrier processing time consuming and occupy certain space.
Summary of the invention
The technical matters that the present invention solves is to utilize the high problem of method complex manufacturing technology, cost that colored diffusion barrier is realized backlight color of pasting in the prior art.
For solving the problems of the technologies described above, the present invention provides following technical scheme:
A kind of LGP comprises: transparency carrier; The glue-line that is mixed with fluorescent ink is attached at the one side of said transparency carrier, and the said glue-line that is mixed with fluorescent ink is formed with predetermined pattern.
The present invention also provides the another kind of method of making above-mentioned LGP, may further comprise the steps: provide one have a predetermined pattern mould; On this mould, pour the solution shape glue that is mixed with fluorescent ink into; Above being mixed with the solution shape glue of fluorescent ink, put into a transparency carrier; Sclerosis is mixed with the solution shape glue of fluorescent ink, makes itself and transparency carrier bonding; Remove this mould, form LGP.
Compared with prior art the present invention has following beneficial effect: a kind of LGP and manufacturing approach thereof that the embodiment of the invention provides, LGP comprise that the glue-line that is mixed with fluorescent ink can realize backlight color; Manufacturing method of light conducting board directly is mixed with fluorescent ink in glue, manufacture craft is simple, and cost is low.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment of the invention LGP;
Fig. 2 is an embodiment of the invention method for manufacturing light guide plate process flow diagram;
Fig. 3 is the mould synoptic diagram of embodiment of the invention method for manufacturing light guide plate;
Fig. 4 is that embodiment of the invention method for manufacturing light guide plate is poured the solution shape glue synoptic diagram that is mixed with fluorescent ink on mould;
Fig. 5 is that embodiment of the invention method for manufacturing light guide plate is put into the transparency carrier synoptic diagram;
Fig. 6 is that embodiment of the invention method for manufacturing light guide plate is removed the bubble synoptic diagram;
Fig. 7 is the solution shape glue synoptic diagram that the sclerosis of embodiment of the invention method for manufacturing light guide plate is mixed with fluorescent ink;
Fig. 8 is the LGP vertical view that embodiment of the invention method for manufacturing light guide plate obtains.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 is the synoptic diagram of embodiment of the invention LGP; A kind of LGP 10 comprises: transparency carrier 11; The glue-line 15 that is mixed with fluorescent ink is attached at the one side of said transparency carrier, and the said glue-line that is mixed with fluorescent ink is formed with predetermined pattern.This LGP comprises that the glue-line that is mixed with fluorescent ink can realize backlight color.Wherein transparency carrier 11 is a kind of in polyethylene terephthalate, polymethyl methyl esters, the acrylonitrile-butadiene-styrene (ABS) polymkeric substance; The glue-line 15 that wherein is mixed with fluorescent ink is the high grade of transparency ultraviolet cured adhesives that are mixed with fluorescent ink.
Fig. 2 is an embodiment of the invention method for manufacturing light guide plate process flow diagram; A kind of method of making above-mentioned LGP may further comprise the steps: 201: provide one have a predetermined pattern mould; 202: on this mould, pour the solution shape glue that is mixed with fluorescent ink into; 203: above being mixed with the solution shape glue of fluorescent ink, put into a transparency carrier; 204: sclerosis is mixed with the solution shape glue of fluorescent ink, makes itself and transparency carrier bonding; 205: remove this mould, form LGP.A kind of LGP and manufacturing approach thereof that the embodiment of the invention provides, LGP comprise that the solution shape glue that is mixed with fluorescent ink can realize backlight color; Manufacturing method of light conducting board directly is mixed with fluorescent ink in glue, manufacture craft is simple, and cost is low.
Consulting Fig. 3 to Fig. 8, is respectively each step synoptic diagram in the flow process of method for manufacturing light guide plate of the present invention, may further comprise the steps:
Step 201: provide one have a predetermined pattern mould 3, as shown in Figure 3; Pattern according to predetermined relates to mould, and mould can be processed through the method for machining, chemical corrosion, laser engraving.Predetermined pattern on the mould can be groove or site 31, and present embodiment is an example with site 31, the preferred nickel board mold of mould; Because mould online spot size is less, meticulousr, the preferred high accuracy Laser Processing processes the LGP grand master pattern, copies the nickel board mold through electroforming process; This nickel board mold cost is low, and the process-cycle is short, and dirigibility is good, and mold thickness is between 0.20mm-5.00cm.
Step 202: on this mould 3, pour the solution shape glue 12 that is mixed with fluorescent ink into, as shown in Figure 4; At first process the solution shape glue 12 that is mixed with fluorescent ink; Glue selects transmittance to reach the glue more than 95%; Preferred high grade of transparency solution shape ultraviolet cured adhesive (UV glue); This high grade of transparency solution shape ultraviolet cured adhesive starts chemical chain reaction by the UV light source irradiation, and in time several seconds, solidifies; Fluorescent ink is added by a certain percentage in the glue of UV photocuring, add a certain proportion of foam-breaking agent, the foam-breaking agent ratio stirs with the glue of electromagnetism stirring machine with preparation between 5 ‰～1%.The fluorescent ink ratio is between 5 ‰～1%, and allotment glue transmittance well is between 80%～97%.The configuration proportion of UV glue is adjusted according to the viscosity of UV glue voluntarily, does not influence the UV glue curing and gets final product.Nickel board mold one side is applied an amount of solution shape glue that is mixed with fluorescent ink, also can the solution shape glue that be mixed with fluorescent ink be coated in other places of nickel board mold, such as the centre of nickel board mold.
Step 203: above being mixed with the solution shape glue 12 of fluorescent ink, put into a transparency carrier 11, as shown in Figure 5; Transparency carrier 11 is a kind of in polyethylene terephthalate, polymethyl methyl esters, the acrylonitrile-butadiene-styrene (ABS) polymkeric substance, preferred polymethyl methyl esters; Transparency carrier 11 thickness are between 0.05mm～0.3mm, and guaranteeing has adhesion preferably with the solution shape glue that is mixed with fluorescent ink of preparation.When fluorescent ink has the irradiation that receives ambient light, can absorb the energy of certain form, these energy can not be converted into heat energy, but transform and be excited into photon, with the form of visible light the energy that absorbs are discharged, and lead the special efficacy of bright whole base plate.Also be included in the light step of removing bubble of pressing on the transparency carrier in this step, as shown in Figure 6, with the transparency carrier 11 of roller 4 roller coating moulds 3 tops, make the solution shape glue that is mixed with fluorescent ink fully also cover nickel board mold 3 site district equably.
Step 204: sclerosis is mixed with the solution shape glue of fluorescent ink, makes itself and transparency carrier bonding, as shown in Figure 7; Nickel board mold 3 is put into the UV machine together with transparency carrier 11 be cured moulding, select suitable UV stove cure parameter, guarantee UV glue full solidification, xanthochromia not, sheet material does not have warpage, no bubble.
Can utilize digital control processing to mill out the LGP profile at last as required; Can the LGP of forming be placed on the punching molding mould, carry out punching molding, obtain needed LGP profile; The LGP that obtains moulding can be used in the key-press backlight source module of electronic products such as mobile phone key, notebook computer button, MP3.
Method for manufacturing light guide plate of the present invention is not limited to above embodiment, and the solution shape glue that is mixed with fluorescent ink that wherein hardens can adopt light-struck method, especially uses UV-irradiation, makes the solution shape glue sclerosis that is mixed with fluorescent ink.Mould pattern also is not limited to site, groove, also can be other structures.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LGP is characterized in that, comprising:
Transparency carrier;
The glue-line that is mixed with fluorescent ink is attached at the one side of said transparency carrier, and the said glue-line that is mixed with fluorescent ink is formed with predetermined pattern.
2. a kind of LGP according to claim 1 is characterized in that, said transparency carrier is a kind of in polyethylene terephthalate, polymethyl methyl esters, the acrylonitrile-butadiene-styrene (ABS) polymkeric substance.
3. a kind of LGP according to claim 1 is characterized in that, the said glue-line that is mixed with fluorescent ink is the high grade of transparency ultraviolet cured adhesive that is mixed with fluorescent ink.
4. a method of making LGP as claimed in claim 1 is characterized in that, may further comprise the steps:
Provide one have a predetermined pattern mould;
On this mould, pour the solution shape glue that is mixed with fluorescent ink into;
Above being mixed with the solution shape glue of fluorescent ink, put into a transparency carrier;
Sclerosis is mixed with the solution shape glue of fluorescent ink, makes itself and transparency carrier bonding;
Remove this mould, form LGP.
5. manufacturing method of light conducting board according to claim 4 is characterized in that, sclerosis is mixed with before the solution shape glue of fluorescent ink, further is included in the light step of removing bubble of pressing on the transparency carrier.
6. manufacturing method of light conducting board according to claim 5 is characterized in that, this light pressure is removed the bubble process and can be used the roller roller coating.
7. manufacturing method of light conducting board according to claim 4 is characterized in that, hardens that this is mixed with the solution shape glue of fluorescent ink, adopts light-struck method.
8. manufacturing method of light conducting board according to claim 7 is characterized in that, uses UV-irradiation, makes the solution shape glue sclerosis that is mixed with fluorescent ink.
9. manufacturing method of light conducting board according to claim 4 is characterized in that, said transparency carrier is a kind of in polyethylene terephthalate, polymethyl methyl esters, the acrylonitrile-butadiene-styrene (ABS) polymkeric substance.
10. manufacturing method of light conducting board according to claim 4 is characterized in that, the solution shape glue that is mixed with fluorescent ink is the high grade of transparency solution shape ultraviolet cured adhesive that is mixed with fluorescent ink.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010270925XA CN102385094A (en) | 2010-08-27 | 2010-08-27 | Light guide plate and fabrication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010270925XA CN102385094A (en) | 2010-08-27 | 2010-08-27 | Light guide plate and fabrication method thereof |
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| CN102385094A true CN102385094A (en) | 2012-03-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169635A (en) * | 2012-03-30 | 2014-11-26 | 武藤工业株式会社 | Light-guide-plate creation method and device |
| CN108381130A (en) * | 2018-01-16 | 2018-08-10 | 滁州佳宏光电有限公司 | A kind of manufacturing method of mobile phone light guide panel template |
| CN111290068A (en) * | 2020-02-26 | 2020-06-16 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and manufacturing method of light guide plate |
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| CN101241810A (en) * | 2007-02-05 | 2008-08-13 | 毅嘉科技股份有限公司 | Making method for key light guide plate |
| US20090059553A1 (en) * | 2007-05-08 | 2009-03-05 | Tai-Yen Lin | Light guiding structure and manufacturing of the same |
| CN201266247Y (en) * | 2008-08-13 | 2009-07-01 | 达方电子股份有限公司 | Light conducting plate of lighting keyboard |
| CN201508444U (en) * | 2009-06-02 | 2010-06-16 | 深圳市帝显电子有限公司 | Liquid crystal back light structure capable of being made to present various back light colors |
| CN101806978A (en) * | 2010-04-02 | 2010-08-18 | 四川长虹电器股份有限公司 | Novel liquid crystal module light guide plate and backlight source thereof |
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2010
- 2010-08-27 CN CN201010270925XA patent/CN102385094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241810A (en) * | 2007-02-05 | 2008-08-13 | 毅嘉科技股份有限公司 | Making method for key light guide plate |
| US20090059553A1 (en) * | 2007-05-08 | 2009-03-05 | Tai-Yen Lin | Light guiding structure and manufacturing of the same |
| CN201266247Y (en) * | 2008-08-13 | 2009-07-01 | 达方电子股份有限公司 | Light conducting plate of lighting keyboard |
| CN201508444U (en) * | 2009-06-02 | 2010-06-16 | 深圳市帝显电子有限公司 | Liquid crystal back light structure capable of being made to present various back light colors |
| CN101806978A (en) * | 2010-04-02 | 2010-08-18 | 四川长虹电器股份有限公司 | Novel liquid crystal module light guide plate and backlight source thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169635A (en) * | 2012-03-30 | 2014-11-26 | 武藤工业株式会社 | Light-guide-plate creation method and device |
| CN108381130A (en) * | 2018-01-16 | 2018-08-10 | 滁州佳宏光电有限公司 | A kind of manufacturing method of mobile phone light guide panel template |
| CN111290068A (en) * | 2020-02-26 | 2020-06-16 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and manufacturing method of light guide plate |
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Owner name: BIYADI PRECISION MANUFACTURING CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20140208 |
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Effective date of registration: 20140208 Address after: Longgang District of Shenzhen City, Guangdong province 518116 Lotus Road No. 3001 A3 Chengbao Baolong Industrial plant first layer, A1 layer, A10 building fourth building third layer Applicant after: Biyadi Precision Manufacturing Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Applicant before: Biyadi Co., Ltd. |
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Application publication date: 20120321 |