CN1227106C - 场致发光夹物模压件制造方法 - Google Patents
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
- B29C2045/14844—Layers protecting the insert from injected material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2715/00—Condition, form or state of preformed parts, e.g. inserts
- B29K2715/006—Glues or adhesives, e.g. hot melts or thermofusible adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0036—Electroluminescent
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Electroluminescent Light Sources (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
本发明的目的是提供一种EL夹物模压件制造方法,该方法能够制造EL元件而不会造成损坏,同时被注入的树脂的温度和压力保持在优化成形状态。在EL元件中装有发光部分3A与非发光部分3B。EL元件3被插入到注塑模具的腔体15内,树脂被注入到腔体中以制造EL夹物模压件。在腔体15中,铸口部分18装设在与EL元件3非发光部分3B相对的部分。装饰膜2可在EL元件3的前面整体形成。
Description
技术领域
本发明涉及用于移动电话、移动信息终端、电器、工业设备、音频设备及用于汽车等的电气组件的场致发光(EL)夹物模压件制造方法。
背景技术
在现有技术的EL元件的制造方法中,在腔体中可选的位置装设注塑模具的注入树脂的铸口,但没有注意到关于与夹持的EL元件相对的位置关系。
发明内容
因此,EL元件的发光部分由于从铸口注入的树脂的热量和压力被损坏,这可能降低EL元件的质量,对EL元件造成诸如点亮失效等损坏。为了防止EL元件的点亮失效,已试图采取诸如降低被注入的树脂温度、降低注入的压力等措施,然而生成压模缺陷的概率高,因为这些措施并不总是优化的成形条件。
就以上来看,本发明的目的是要提供一种EL夹物模压件制造方法,该方法不会损坏EL元件且不会引起EL元件点亮失效,同时被注入的树脂的温度和压力保持在优化成形状态。
根据本发明的EL夹物模压件制造方法的特征在于,装有发光部分和非发光部分的EL元件被插入到注塑模具的腔体内,在腔体中与EL元件非发光部分相对的位置装设铸口部分,并从铸口部分向腔体注入树脂,以形成EL夹物模压件。通过这种结构,能够产生不损坏EL元件的EL夹物模压件,同时被注入的树脂的温度和压力保持在优化的成形状态。
最好设计使得装饰膜在EL元件的前面整体形成。
附图说明
图1是表示本发明实施例的剖视图;
图2是局部放大剖视图。
具体实施方式
以下将参照附图说明本发明的实施例。
图1是实施例的剖视图,其中装饰膜2和EL元件3一体提供的的薄片被插入到注塑模具1的腔体中,并向EL元件3的背侧腔体注入模压树脂以形成EL夹物模压件。
在注塑模具1中,浇口模板(runner stripper plate)12配置在前模板11的前方,腔体保持板13配置在浇口模板12的前方。型芯保持板14装设在腔体保持板13对面,腔体15设在腔体保持板13与型芯保持板14之间。提供注塑树脂的模制浇口16固定在前模板11中,树脂从铸口部分18(gate portion)通过与模制浇口的树脂注入口连通的流道部分17注入到腔体15中。分离线L在腔体保持板13与型芯保持板14之间。
以下将说明插入在腔体15中的装饰膜2与EL元件3。如图2所示,在装饰膜2中,由包含聚碳酸酯(PC)和聚对苯二甲酸丁二醇酯(PBT)聚合物混合物(PC/PBT)形成厚度大约175μm的透明膜21,并在透明膜21上形成由模样、图示、字符绘制装饰层22等。
在EL元件3中,作为透明电极的铟锡氧化物(ITO)沉积在聚碳酸酯(PC)制成的基片膜31上,以形成透明电极层32,或印刷散布在粘合剂树脂中的ITO的针状结晶以形成透明电极层32。在实施例中,透明膜31的厚度为100μm。
在透明电极层32上,在要成为发光的位置印刷发光墨水以形成发光层33。掺以Cu的硫化锌(ZnS)用作为组成发光墨水的发光体。使用粘合剂,二氟乙烯和丙烯六氟化物的共聚物作为氟树脂粘合剂溶解在作为溶剂的丁酮中,发光体和粘合剂混合并被搅拌而制成发光墨水。通过诸如屏幕印刷等方法在透明电极层32上印刷发光墨水,并然后通过加热和干燥形成发光层33。
通过相同的印刷方法在发光层33上形成铁电材料层34。通过混合并搅拌包含钛酸钡(BaTio3)的铁电材料与上述发光树脂粘合剂,制成形成铁电材料层34的绝缘墨水。在铁电材料层34上印刷碳墨水,通过加热和干燥以形成背侧电极层35。背侧电极层35可包含碳粉、银粉、铜粉,及聚酯作为粘合剂。
虽然发光部分3A这样形成,以至在透明电极层32上叠层为发光层33、铁电材料层34、及背侧电极层35,但没有叠加发光层等的位置是非发光部分3B,EL元件3包括发光部分3A与非发光部分3B。在非发光层3B的透明电极层32及发光部分3A的背侧电极层35上形成防护层36。防护层36可以是电绝缘材料,诸如聚酯、丙烯酸树脂、聚氯乙烯(PVC)等。聚酯是多种材料的一般名称,具体有聚对苯二甲酸乙二醇酯(PET),聚对苯二甲酸丁二醇酯(PBT)等可作为防护层36。丙烯酸树脂也是一个一般的名称,具体有聚甲基丙烯酸甲酯(PMMA)树脂等可用作为防护层36。
此外,在防护层36上形成粘胶层37。通过对夹物模压件印刷屏幕印刷墨水形成粘胶层37,一种可强力附着到夹物模压树脂上并有良好的抗热性及冷固性的材料用作为屏幕印刷墨水。
使用粘合剂或粘附材料诸如双面粘附胶带等,通过上述方法形成的EL元件3附着到装饰膜2的背侧,被粘合的装饰膜2和EL元件3被塑性变形为需要的形状,例如盒子等三维形状,被塑性变形的装饰膜2和EL元件3被插入到腔体15中。在图1所示的实施例中,虽然装饰膜2对应于腔体15的内面,而EL元件3位于腔体15的底面范围内,装饰膜2和EL元件的尺寸不限于图1中所示的尺寸,装饰膜2可以小于图1所示,或EL元件3可以到达腔体15的侧面。
当EL元件3插入在腔体15时,注塑模具1的铸口部分18在与EL元件3的非发光部分3B相对的位置形成。虽然图1中只示出一个铸口部分18,但铸口部分的数目不限于图1所示的铸口部分18,可以装设多个铸口部分,任何铸口部分应当与EL元件3的非发光部分3B相对装设。
然后,树脂通过模制浇口16、流道部分17、及铸口部分18被注入到与粘附层37相邻装设的腔体15中,以形成EL夹物模压件。从与防护层36较强的粘合观点而言,最好是与防护层36相同的材料,包含与防护层36相同的材料以及其它材料的聚合物混合物,具有比防护层36材料更高熔点的材料等用作为被注入的树脂。
例如,在PET用作为防护层36的情形下,PET/PP,PET/PC,及PET/PE可用作为聚合物混合物,在PBT用作为防护层36的情形下,PBT/PC,PBT/PPE,及PBT/ABS可用作为聚合物混合物,在PMMA用作为防护层36的情形下,PMMA/PP,PMMA/PC,及PMMA/PS可用作为聚合物混合物,并且在PVC用作为防护层36的情形下,PVC/PP,PVC/PE,PVC/PS等可用作为聚合物混合物。其中PP是聚丙烯,PE是聚乙烯,PPE是聚苯醚,PS是聚苯乙烯。
在比防护层36具有较高熔点的材料中,首先参照防护层材料的熔点,PET是250℃,PBT是220℃,PMMA是125℃,且PVC是170℃,另一方面,参照具有较高熔点的材料,尼龙6(PA6)是215℃,PC是230℃,聚缩醛(POM)是165℃,聚苯硫醚(PPS)是285℃。于是,PPS作为具有较高温度的材料适用于PET或其聚合物混合物,PPS与PC适用于PBT或其聚合物混合物,PA6,PC,POM及PPS任何之一适用于PMMA或其聚合物混合物,以及PA6,PC及PPS适用于PVC及其聚合物混合物。
上述的树脂从铸口部分18注入到腔体15中。如上所述,铸口部分18与EL元件的非发光部分3B相对。这就是说,由于铸口部分18不与包含发光层33的发光部分3A相对,不会产生发光部分3A被来自注入中的树脂的热量和压力损坏而造成点亮失效等情形。此外,粘胶层37被树脂的热量熔化,因为树脂包含与防护层36材料相同的材料,故树脂与防护层36的材料通过熔化而彼此坚固地粘附。因此,在模压之后,从树脂与防护层36之间的粘合点绝不会发生剥离等情形。
根据本发明,因为在注塑模具的腔体中,铸口部分装设在与EL元件非发光部分相对的位置,故能够不损坏EL元件而制造EL夹物模压件,同时被注入的树脂的温度和压力保持在优化的成形状态,这允许提供高质量的没有点亮失效的EL夹物模压件。
Claims (2)
1.一种场致发光夹物模压件制造方法,其特征在于,装有发光部分和非发光部分的场致发光元件被插入到注塑模具的腔体内,
在腔体中与场致发光元件非发光部分相对的位置装设铸口部分,并从铸口部分向腔体注入树脂,以形成场致发光夹物模压件。
2.如权利要求1中所述的场致发光夹物模压件制造方法,其中场致发光夹物模压件制造方法的特征在于,装饰膜在场致发光元件的前面整体形成。
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Application Number | Priority Date | Filing Date | Title |
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JP2001323288A JP2003127169A (ja) | 2001-10-22 | 2001-10-22 | Elインサート成形品の製造方法 |
JP323288/2001 | 2001-10-22 |
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CN1413819A CN1413819A (zh) | 2003-04-30 |
CN1227106C true CN1227106C (zh) | 2005-11-16 |
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US (1) | US20030075826A1 (zh) |
EP (1) | EP1304906A3 (zh) |
JP (1) | JP2003127169A (zh) |
KR (1) | KR100514688B1 (zh) |
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WO2004103678A1 (de) * | 2003-05-22 | 2004-12-02 | Weidmann Plastics Technology Ag | Verfahren zur herstellung eines formteils durch hinterspritzen eines flächigen dekormaterials sowie mit einem eingebetteten dekormaterial |
US20070286966A1 (en) * | 2006-06-09 | 2007-12-13 | Meng Chen | Method of depositing an abrasion-resistant layer onto an electroluminescent plastic window |
EP2051839A1 (de) * | 2006-08-14 | 2009-04-29 | Schreiner Group GmbH & Co. KG | Dreidimensionales bauteil und verfahren zur herstellung desselben |
TW200920583A (en) * | 2007-11-07 | 2009-05-16 | Darfon Electronics Corp | Electronic device having luminescence surface and manufacturing method of the housing for the same |
CN102229226B (zh) * | 2011-07-07 | 2013-06-05 | 宁波市阳光汽车配件有限公司 | 复合簇绒地毯塑料内饰件的注塑模压成型方法 |
KR101751244B1 (ko) | 2015-08-21 | 2017-06-28 | 엠티코리아 주식회사 | 이엘(el)필름 삽입 제품용 이중 사출 금형 및 성형방법 |
KR20180096401A (ko) | 2017-02-21 | 2018-08-29 | 엠티코리아 주식회사 | El필름 삽입 제품용 금형 및 사출방법 |
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GB2360011B (en) * | 2000-03-10 | 2004-08-11 | Nokia Mobile Phones Ltd | A component with a metallic foil secured to an injection moulded substrate |
US6617186B2 (en) * | 2000-09-25 | 2003-09-09 | Dai Nippon Printing Co., Ltd. | Method for producing electroluminescent element |
US6515312B1 (en) * | 2001-12-03 | 2003-02-04 | Windell Corporation | Method for packaging organic electroluminescent device |
-
2001
- 2001-10-22 JP JP2001323288A patent/JP2003127169A/ja active Pending
-
2002
- 2002-10-15 US US10/271,229 patent/US20030075826A1/en not_active Abandoned
- 2002-10-18 EP EP02023414A patent/EP1304906A3/en not_active Withdrawn
- 2002-10-18 KR KR10-2002-0063779A patent/KR100514688B1/ko not_active IP Right Cessation
- 2002-10-22 CN CNB021471029A patent/CN1227106C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100514688B1 (ko) | 2005-09-13 |
CN1413819A (zh) | 2003-04-30 |
EP1304906A3 (en) | 2006-04-26 |
US20030075826A1 (en) | 2003-04-24 |
KR20030033937A (ko) | 2003-05-01 |
JP2003127169A (ja) | 2003-05-08 |
EP1304906A2 (en) | 2003-04-23 |
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