CN1383345A - 用于无线移动通信终端液晶画面的导电性衬垫及其制造方法 - Google Patents
用于无线移动通信终端液晶画面的导电性衬垫及其制造方法 Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133325—Assembling processes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133334—Electromagnetic shields
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
- G02F2201/503—Arrangements improving the resistance to shock
Abstract
本发明提供了一种用于无线移动通信终端的导电性液晶画面衬垫及其制造方法。该衬垫既具有缓冲性,把液晶画面弹性地支撑在外壳上,又具有导电性,可吸收、屏蔽静电和电磁波。使用导电性粘结剂,把含浸进镍等导电性金属的织布、不织布、编布等具有伸缩性的纤维制成的1~4层功能性面料重叠组合,用自动切割机切割成所希望的形状后,对上述切割面进行热熔融处理,从而使其同时具有可成型性、缓冲性、导电性,各剖面经热熔融处理后固定成型,纤维屑和灰尘得到清除,把这种加工过的功能性面料实际运用于无线移动通信终端的液晶画面衬垫时,既具有缓冲的良好效果,又具有吸收、屏蔽终端内外部产生的电磁波和静电的良好效果。
Description
技术领域
本发明与用于无线移动通信终端的液晶画面衬垫及其制造方法有关,更详细地说,是有关既具有缓冲性来弹性地支撑液晶画面,又具有导电性来吸收和屏蔽静电及电磁波的液晶画面衬垫及其制造方法。
背景技术
众所周知,数字式无线移动通信终端中必须配备把文字或符号显示于外部的液晶画面(LCD),以橡胶、聚氨酯为原材料的液晶画面衬垫填充在液晶画面和外部框架之间,弹性地支撑该液晶画面。
另一方面,随着对有害电磁波危险性的认识,对于无线移动通信终端也存在这样一种趋势,即制定相对于有害电磁波的基准值,加以严格限制。通常,在无线移动通信终端的外壳的内侧覆盖上导电性材料,用这种方法吸收或屏蔽有害电磁波。但由于无线移动通信终端液晶画面部位的内部电路和外部直接相通,是产生有害电磁波最强的一个部位,因此,有必要对能够吸收或屏蔽液晶画面部位有害电磁波的构造或方法进行研究。
然而,以一般的橡胶、聚氨酯为原材料的液晶画面衬垫,虽然具有缓冲性能,但由于其几乎没有吸收或屏蔽电磁波的能力,所以由内部电路产生并经液晶画面和外部框架之间向外发射的电磁波或静电可以说是完全处于无屏蔽的暴露状态,即使在上述终端的其它部分用涂覆或附着导电性材料的方式来试图解决上述问题,但还没有一种方法能够从根本上吸收或屏蔽液晶画面产生的电磁波或静电。
为解决这些问题,可以用导电性材料制成能吸收、屏蔽电磁波或静电的液晶画面衬垫,但几乎所有这些导电性材料都存在缓冲能力弱、可成型性差的问题而无法直接使用。
发明内容
因此,考虑到上述问题,本发明把导电性材料含浸于一般纤维中制成功能性面料,用导电性粘结剂使之多重结合形成所需的厚度和可成型性,加工成所需的形状,使之适用于无线移动通信终端的液晶画面衬垫,既具备缓冲性又具备导电性,这样,它既可充分发挥其作为液晶画面衬垫的功能,又能在液晶画面和外部框架之间吸收屏蔽发射出的有害电磁波或静电。本发明的目的就是提供这样一种无线移动通信终端的液晶画面衬垫及其制造方法。
为达到上述目的,本发明提供一种用于无线移动通信终端的液晶画面衬垫,在液晶画面和支撑该画面的外壳之间,弹性支撑上述液晶画面,其特点在于,把导电性材料含浸进有伸缩性的纤维中,使形成既具有缓冲性,又同时具有小于1.0Ω/mm2的水平阻抗和小于1.0Ω/mm2的垂直阻抗的导电性的功能性面料,使用导电性粘结剂把该功能性面料叠加组合成厚度小于1mm的层状结构(可以是1层至4层),通过热熔融处理其上表面、外部剖面、内径剖面而构成用于无线移动通信终端的上述液晶画面衬垫。
如上述说明,本发明的液晶画面衬垫,可选择1~3种含浸进有导电材料且具伸缩性的纤维制成的功能性面料,用导电性粘结剂把1~4层该功能性面料叠加组合,由于有很好的可成型性,可使用自动切割机切割成所希望的纤细形状,且其厚度小于1mm,因而适用于液晶画面和外壳之间的狭小空间,更重要的是,它既具有缓冲性把液晶画面弹性地支撑在外壳上,又能够吸收和屏蔽液晶画面和外壳间发射出来的有害电磁波或静电,所以既可改善无线移动通信终端的通话质量,又能达到保护使用者健康的目的。
此外,本发明的液晶画面衬垫同以往的东西相比,无论大小、形状、重量都处于同等水准,因此我们没有必要改变现有终端的结构。
附图说明
图1本发明用于无线移动通信终端的液晶画面衬垫的剖面图。
图2本发明用于无线移动通信终端的液晶画面衬垫的示例图,
a)织布或无纺布的一层结构。
b)织布、无纺布的两层结构。
c)织布、无纺布、织布的三层结构。
d)织布、编布、织布的三层结构。
e)织布、编布、无纺布的三层结构。
f)织布、编布、编布、无纺布的四层结构。
g)织布、编布、编布、编布的四层结构。
h)织布、无纺布、编布、无纺布的四层结构。
图3本发明用于无线移动通信终端的液晶画面衬垫的制造工序图。
发明的实施例
下面,对照附图,详细说明本发明的合适的实施形态。
本发明的无线移动通信终端的液晶画面衬垫,如图1所示,是把导电性金属14,比如镍等,含浸于象织布11,无纺布12,编布13等的伸缩性纤维中形成功能性面料15,使用导电性粘结剂16把该功能性面料叠加组合成1至4层的层状结构,通过热熔融处理其上表面、外部剖面、内径剖面而构成,该液晶画面衬垫10位于无线移动通信终端的液晶画面(图中未示)和外壳(图中未示)之间,弹性地支撑液晶画面。
如图3所示,本发明的液晶画面衬垫10,首先把含有镍等导电性金属14的金属涂料涂覆在织布11,无纺布12,编布13等具有伸缩性的纤维材料上,干燥后,导电性金属14就自然地含浸进纤维材料中。这里,把含浸进有导电性金属14的纤维材料称为功能性面料15。
选择1~3种纤维材料,使用导电性粘结剂16,叠加组合成功能性面料15,上述的导电性粘结剂16是含有导电性材料的粘结剂,既有令人满意的粘结效果又带有导电性,所以使用这种粘结剂把1~4层功能性面料15叠加组合,则结合体全体就会带有导电性。此时,液晶画面衬垫10的导电性设定在水平阻抗小于1.0Ω/mm2、垂直阻抗小于1.0Ω/mm2,并且考虑到液晶画面和外壳之间的狭小空间,功能性面料的厚度设定在1mm以下。
另外,由于功能性面料15是用织布11、无纺布12、编布13等制成,在各种无线移动通信终端中,根据各种纤维的特性合理选择功能性面料的种类,就可在实现其较薄的厚度的同时最大限度地实现缓冲性和导电性,具体请参照图2。
叠加组合而成的功能性面料15,与现有的以橡胶、聚氨酯为原材料的液晶画面衬垫相比,具有相同水准的可成型性和抗冲击性,从而可以把该功能性面料送入自动切割机(又叫密封机,Automatic die cutting machine)中,按照预先的设定进行切割,使之与无线移动通信终端液晶画面的纤细形状能够相符。
完成切割后,为了固定成型,清除纤维屑、尘埃等污染物,必须对上述切割面和上表面进行热熔融处理。热熔融处理分两次进行,第一次使用小型火焰喷射器,在被切割后的功能性面料15的上表面和外部的切割面上,在0.2~0.5秒的时间内边移动边加热熔融该上表面和外部切割面,第2次用电焊枪轻微地熔解上述内径切割剖面的表面而不损伤内径的形状。这样,既具有弹性地支撑液晶画面的缓冲性、又具有可吸收或屏蔽有害电磁波或静电的导电性的液晶衬垫10的制造就告完成。
符号说明10:液晶画面衬垫 11:织布12:无纺布 13:编布14:导电性金属 15:功能性面料16:导电性粘结剂
Claims (2)
1.一种无线移动通信终端液晶画面的衬垫,位于液晶画面和支撑液晶画面的外壳之间,可弹性地支撑液晶画面,其特征是,把导电性材料含浸进于具有伸缩性的纤维中,形成既同时具有小于1.0Ω/mm2的水平阻抗和小于1.0Ω/mm2的垂直阻抗的导电性,又具有缓冲性的功能性面料,使用导电性粘结剂把1~4层该功能性面料重叠组合,其厚度小于1mm,再对其上表面、外部剖面、内径剖面进行热熔融处理,形成所述衬垫。
2.一种无线移动通信终端的液晶画面衬垫的制造方法,其特征是,该制造方法包括:
把含有导电性材料的涂料涂覆和含浸进在具有伸缩性的纤维上,使其在具有缓冲性的同时又具有导电性,其水平阻抗小于1.0Ω/mm2,其垂直阻抗小于1.0Ω/mm2;
选择1-3种含浸进有上述导电性材料的功能性面料,使用导电性粘结剂把1-4层功能性面料叠加组合,其叠加后的厚度小于1mm;
利用自动切割机,把经由上述叠加组合而成的功能性面料切割成和无线移动通信终端液晶画面相符的形状;
使用小型火焰喷射器,在0.2-0.5秒的时间内,在上述被切割后的功能性面料的上表面上和外部剖面上边移动边进行第1次加热熔融;
该功能性面料的上表面和外部剖面经过第1次加热熔融处理后,使用电焊枪,对其被切割后的内径剖面,不损伤该内径的形状地轻度熔融其表面,进行第2次加热熔融。
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JP3442877B2 (ja) * | 1994-02-21 | 2003-09-02 | 富士通株式会社 | 樹脂成形品及びその製造方法 |
KR100396279B1 (ko) * | 1996-08-05 | 2003-08-27 | 세이렌가부시끼가이샤 | 도전성 재료 및 그의 제조방법 |
JPH11330778A (ja) * | 1998-03-18 | 1999-11-30 | Toray Ind Inc | 電磁波シ―ルド用積層体およびその製造方法 |
KR19990042063U (ko) * | 1998-05-30 | 1999-12-27 | 김태수 | 유해전자파 차단구 |
JP2001111288A (ja) * | 1999-10-07 | 2001-04-20 | Daido Steel Co Ltd | ノイズ電磁波の放射を防止した電子機器 |
KR200198309Y1 (ko) * | 2000-03-09 | 2000-10-02 | 나창호 | 전자파 흡수체가 내장된 휴대 전화기 |
KR20010086529A (ko) * | 2000-03-02 | 2001-09-13 | 송문섭 | 폴더형휴대폰의 엘시디 보강 및 전자파 차단 장치 |
KR20000049893A (ko) * | 2000-05-04 | 2000-08-05 | 이병철 | 유해 전자파 차단 휴대폰 |
US6515223B2 (en) * | 2001-06-11 | 2003-02-04 | Richard Tashjian | Cellular shield |
-
2001
- 2001-04-25 KR KR10-2001-0022504A patent/KR100394151B1/ko not_active IP Right Cessation
-
2002
- 2002-04-19 CN CNB02118139XA patent/CN1210983C/zh not_active Expired - Fee Related
- 2002-04-24 US US10/131,708 patent/US6768524B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100444599C (zh) * | 2003-04-04 | 2008-12-17 | 乐金电子(中国)研究开发中心有限公司 | 便携式终端的冲击吸收装置 |
WO2013071566A1 (zh) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | 一种反射板以及背光系统 |
Also Published As
Publication number | Publication date |
---|---|
CN1210983C (zh) | 2005-07-13 |
KR20010069664A (ko) | 2001-07-25 |
US20020159000A1 (en) | 2002-10-31 |
KR100394151B1 (ko) | 2003-08-09 |
US6768524B2 (en) | 2004-07-27 |
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