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1、一、走进导光板导光板设计原理源于笔记本电脑的液晶显示屏,是将侧边的线光源转换成面光源并均匀发光,因其具有超薄、超亮、导光均匀、节能、环保、无暗区、耐用、不易黄化等众多优点,被广泛应用于液晶显示器的背光源、超薄的广告灯箱、医疗用的X光看片器、平板型的灯饰照明、亮光工程的光效运用、发光标示牌等类的场合,广阔的市场前景为导光板加工业带来了一片生机。然而,随着行业竞争的加剧以及导光板逐步走向高端化,传统的制作工艺已无法满足市场的需求,对于导光板加工业而言,工艺革新势在必行。1.EntertheworldofLGPThedesignprincipleoflightguideplateisfr
2、omlaptopcomputer'sLCDscreen.Itconvertslinearlightsourceonthesideintoarealightsourceandemitsuniformlight.BecauseLGPissuper-thin,super-bright,durable,environmentalfriendlyandenergysavingandhastheadvantagesofopticaluniformity,nodarkareas,difficulttoyellowandsoon,itiswidelyusedinLCDbacklight,super
3、-thinadvertisinglightboxes,medicalX-rayfilmbox,flattypelightingdevices,lightusageoflightproject,light-emittingsignsandotherplaces.ThebroadmarketprospectshavebroughtvitalitytotheLGPprocessingindustry.However,asindustrialcompetitionintensifiesandLGPindustrygraduallybecomeshigh-grade,thetradition
4、alproductionprocesshasbeenunabletomeetthemarketdemand.Therefore,forLGPplateprocessingindustry,technologicalinnovationisimperative.二、导光板制作工艺第一代制作工艺:油印网点导光板。其主要特点是生产速度比较高,但由于要出菲林做模板,所以产品设计修改不方便,制作周期较长。这种传统的工艺工序也非常多,操作复杂,生产耗材较多,人工投入较大,厂房占地面积很大(一般200-300平方米/每条线)。此外,由于起始点油墨不均匀,烘烤不均匀的问题,使产品的合格率较低。而且
5、加工方式是化学过程,在生产过程中腐蚀性酸产生,原材料有毒,是一种不环保的生产方式。2.ProductionprocessofLGPThefirstgenerationofproductionprocess:LGPsmadebyscreenprintingtechnique.Itsmainfeatureisthattheproductionrateisrelativelyhigh,butthistechniqueneedsfilmasatemplate,andisinconvenientindesigningandmodifyingtheproductsandthushaslonge
6、rproductioncycle.Thisconventionalproductionhasmultipleprocessesandcomplexoperation.Thereneedsalotofconsumablematerialsandlaborcostduringproduction.Becausetheunevenprintinginkatstartingpointandunevenbaking,theratioofqualifiedproductsisverylow.Itisnotanenvironmentalfriendlyproductionmethod.第二代制作
7、工艺:划线导光板。划线导光板是用机械和激光在光学亚克力表面划出直线,利用光栅原理形成漫反射达到导光的目的。由于采用一条直线来取透射光,所以经过几次透射光就变得很弱,使光不能均匀的传递。Thesecondgenerationoftheproductionprocess:LGPswithlines.TheproductionofLGPswithlinesistoscribestraightlinesonopticsacrylicsurfacebymechanicaland