WO2009053872A1 - Connexions robustes dans un tissu multicouche - Google Patents

Connexions robustes dans un tissu multicouche Download PDF

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Publication number
WO2009053872A1
WO2009053872A1 PCT/IB2008/054205 IB2008054205W WO2009053872A1 WO 2009053872 A1 WO2009053872 A1 WO 2009053872A1 IB 2008054205 W IB2008054205 W IB 2008054205W WO 2009053872 A1 WO2009053872 A1 WO 2009053872A1
Authority
WO
WIPO (PCT)
Prior art keywords
textile
yarn
electrically conductive
warp
yarns
Prior art date
Application number
PCT/IB2008/054205
Other languages
English (en)
Inventor
Dirk Zschenderlein
Andreas G. Neudeck
Liesbeth Van Pieterson
Rabin Bhattacharya
Petrus C. P. Bouten
Olaf J-B. Van Loon
Jan C. Kriege
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2009053872A1 publication Critical patent/WO2009053872A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0088—Fabrics having an electronic function
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D19/00—Gauze or leno-woven fabrics
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/038—Textiles
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
    • H05K2201/0275—Fibers and reinforcement materials
    • H05K2201/0281—Conductive fibers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
    • H05K2201/0275—Fibers and reinforcement materials
    • H05K2201/029—Woven fibrous reinforcement or textile

Definitions

  • the present invention relates to textiles for photonic and/or electronic applications.
  • the present invention relates to via-connections made in a multilayer woven fabric to connect two electrically conductive yarns.
  • document WO2006/ 129272 discloses a multilayer woven fabric display in which the fabric comprises non- insulated conductive yarns in a top layer and a bottom layer to carry electrical current to electronic components (LEDs) connected to the fabric, each of the electronic component corresponding to a pixel of the display.
  • LEDs electronic components
  • the use of a multilayer woven fabric is advantageous since optoelectronic devices may be connected to either one of or both faces of the fabric.
  • via-connections electrical connections between the top and bottom layers of the fabric, i.e. from one face of the textile to another, is sensitive, in particular for foldable displays since loose connections may cause malfunctioning of the textile display.
  • An object of the present invention is to wholly or partly overcome the above disadvantages and drawbacks of the prior art and to provide improved multilayer textiles.
  • the present invention provides a multilayer textile for photonic and/or electronic applications such as a foldable and flexible display.
  • the via- connections become robust and little sensitive to mechanical deformation such as e.g. wrinkling of the textile.
  • specific structure of the yarns at the via connections provides robust via connections and thereby reliable fabrics (textiles).
  • a textile formed of interwoven electrically conductive and insulating yarns (or fibres, threads or strikes) arranged along a warp direction and a weft direction is provided.
  • the textile includes a multilayer structure comprising a first layer of electrically insulating yarns and at least one electrically conductive yarn, a second layer of electrically insulating yarns, and a third layer of electrically insulating yarns arranged between the first and the second layers.
  • the weft yarns of the first, second and third layers are arranged along the weft direction.
  • the textile includes also a warp comprising at least one electrically conductive warp yarn arranged along the warp direction.
  • the at least one electrically conductive warp yarn establishes an electrical connection with at least one electrically conductive weft yarn of the first layer by means of a loop arranged around the at least one electrically conductive weft yarn.
  • the at least one electrically conductive warp yarn engages with (or interlaces) also the two weft yarns most adjacent to the loop in either one of the second and third layers.
  • the present invention is based on an insight that a tight interweaving between an electrically warp yarn and an electrically conductive weft yarn of the first layer increases the robustness of the via-connection realized between these two yarns.
  • a tight interweaving is obtained by maximizing the contact area, and thereby the contact pressure, between the electrically conductive weft yarn of the first layer and the electrically conductive warp yarn.
  • a robust via-connection is obtained by means of an electrically conductive warp yarn forming a loop around an electrically conductive weft yarn, wherein a first section of the electrically conductive warp yarn going into the loop is substantially parallel to a second section of the electrically conductive warp yarn going out of the loop.
  • the course of the electrically conductive warp yarn before and after the via-connection (or loop) is substantially parallel. Further, the electrically conductive warp yarn is significantly bended around each of the two adjacent weft yarns in order to form stable fixation points, thereby ensuring a robust via contact.
  • the bending of the electrically conductive warp yarn around the electrically conductive weft yarn may cause the two sections to be directed towards each other.
  • the two sections of the electrically conductive warp yarn may touch each other.
  • the angle formed by the electrically conductive warp yarn before and after the via-connection may vary from e.g. 100 to 270° but even more preferable 150-210°, and most preferable 180°.
  • a robust via- connection is obtained with an electrically conductive warp yarn interlacing an electrically conductive weft yarn by means of a loop interlacing also the most adjacent weft yarns of either one of the second and third layers.
  • An advantage of the present invention is that robust via-connections are provided in the textile, thereby increasing the mechanical stability and functional life time of the electronic textile. Similarly, any device such as a display made of such a textile has an increased mechanical stability and life time while still providing flexibility.
  • electrically conductive weft and warp yarns may also be used in combination with via connections in the textile to realize electrical connection zones at one of the faces of the textile, which faces are defined by the first and second layers. However, it is not necessary that these zones are arranged in the first and second layer. These electrical connection zones may then be used as addressing lines, or to connect electronic components such as sensors, actuators, integrated circuits or optoelectronic devices. As an example, a plurality of light emitting diodes may be connected to the textile and arranged in the form of an array or matrix in order to form a display.
  • the weft yarns of the first, second and third layers may be arranged essentially parallel along the weft direction.
  • the weft yarns of the first, second and third layers may be shifted from one to another along the warp direction.
  • the second layer of the textile further comprises at least one electrically conductive yarn in either one of the warp and weft directions.
  • the third layer of the textile further comprises at least one electrically conductive yarn in either one of the warp and weft directions.
  • the yarn density in the weft direction for a region of the textile is in a range of 20-70 strikes per cm. Normally, using a yarn fineness of 110 dtex for the electrically insulating (non-conductive) yarns, a yarn density of 44 to 48 strikes/cm may be achieved. The density of the weft yarns may be increased by reducing the yarn fineness. As an example, a yarn fineness of 78 dtex would result in a yarn density of 55- 60 strikes/cm.
  • the product P D*VA is limited to the range 440 ⁇ P ⁇ 525 for the present multilayer (3-layer) fabric.
  • the reduction of the yarn fineness i.e. the increase of the yarn density, decreases the efficiency of the production process.
  • the yarn density in the weft direction may range from 20 to 70 strikes/cm.
  • the yarn density in the warp direction is defined by the weaving apparatus, such as a jacqardmachine, and is set in accordance with various standards.
  • the following standards are available: 32-34 threads/cm for fabric quality, 55-60 threads/cm for label quality taft, 70-72 threads/cm for fabric quality, and 120 threads/cm for label quality satin.
  • the maximum density in warp and weft direction is depending on the yarn diameter and there is a coherence between the two densities, i.e. if the yarn density in the warp direction is increased, the yarn density in the weft direction is decreased.
  • the diameter of a thread depends on the fineness, the material (such as polyester, polyamid or cotton for instance), the specific density and the packaging density of the yarn (i.e. monofil or multifil).
  • This range of yarn density provides both a flexible textile and robust via- connections. Higher yarn densities would provide a stiff textile which would reduce the drape-able properties of the textile while lower yarn densities would provide loose via- connections which may cause malfunctioning of eventual electronic components arranged on the textile.
  • the interweaving of the warp and the weft yarns in a region of the textile forms a Leno structure in which two warp yarns adjacent to each other are twisted around consecutive weft yarns to form a spiral pair.
  • the use of a Leno structure effectively "locks" each weft at a predetermined place in the textile.
  • the Leno structure or the combination of the Leno structure with a plain weave structure is advantageous in that it improves the stability of the textile (or fabric), in particular for low yarn density.
  • Fig. 1 shows a cross-sectional view of a textile illustrating the interweaving of an electrically conductive warp yarn in a multilayer structure according to an embodiment of the present invention
  • Fig. 2 shows a top view of a schematic representation of a textile according to another embodiment of the present invention, wherein the weaving structure is a Leno weave structure.
  • Fig. 1 shows a cross-sectional view of a textile 100 illustrating the interweaving of an electrically conductive warp yarn 141 in a multilayer structure 105.
  • the multilayer structure 105 of the textile (or fabric) 100 comprises a first layer 110, a second layer 120 and a third layer 130 arranged between the first layer 110 and the second layer 120.
  • the weft yarns of the first, second and third layers 110, 120 and 130 are shifted from one to another along a warp direction.
  • the first layer 110 comprises at least one electrically conductive weft yarn 111 and electrically insulating weft yarns 112.
  • the second and third layers 120 and 130 comprise electrically insulating weft yarns 122 and 132, respectively.
  • the textile 100 also comprises a warp comprising the electrically conductive warp yarn 141 which is interwoven within the yarns of the multilayer structure 105 and crosses the first layer 110 by means of a loop 145 arranged around the electrically conductive weft yarn 111 of the first layer 110 in order to establish an electrical connection (also called via-connection or via-connection point).
  • the course of the electrically conductive warp yarn 141 is arranged in such a manner that it also interlaces or engages with an adjacent weft yarn 122a of the second layer 120 on one side of the loop 145 and an adjacent weft yarn 132a of the third layer 130 on the other side of the loop 145, which provides a tight interweaving, thereby resulting in a robust via-connection.
  • a first section 141a of the electrically conductive warp yarn 141 going into the loop 145 is directed towards a second section 141b of the electrically conductive warp yarn 141 going out of the loop 145.
  • the two sections 141a and 141b touch each other.
  • the first section 141a of the electrically conductive warp yarn 141 before the loop 145 (or going into the loop 145) forms an angle about 180° with the second section 141b of the electrically conductive warp yarn 141 after the loop 145 (or going out of the loop 145).
  • the course of the electrically conductive warp yarn 141 may be considered to go from left to right with respect to Fig. 1. However, the same reasoning would be applied if the course of the electrically conductive warp yarn 141 was considered to go from right to left.
  • the weft and warp directions along which the yarns are arranged are different from each other. As an example, the weft and warp directions may be orthogonal to each other. However, any angle may be formed between these two directions.
  • first, second and third layers each comprises yarns along both the weft and warp directions.
  • weft yarns of the first, second and third layers arranged along the weft direction are represented in the drawings.
  • the warp comprises more than one electrically conductive warp yarn which are electrically separated from each other by at least one insulating weft yarn (not shown in the figures), thereby enabling different types of connections in the textile.
  • the fabric or textile may also comprise more than one electrically conductive weft yarn which are electrically separated from each other by at least one insulating weft yarn.
  • Fig. 2 shows a top view of a schematic representation of a textile 300 according to an embodiment of the present invention, wherein the weaving structure formed by the weft yarns 311 and 312 and the warp yarns 341 is a Leno weave structure.
  • the Leno weave structure may be used for the entire fabric or may be combined with a plain weave structure.
  • the leno structure is provided at the via-contact (intersection point) with the conductive weft yarn. At other locations, where there is no via contact, the crossing conductive weft and warp yarns in the multi-layer structure needs to pass at different layers.
  • Figure 2 shows the first layer 310 of the multilayer structure of the textile 300.
  • two adjacent warp yarns 341a and 341b of the warp are interwoven within the weft yarns of the multilayer structure.
  • the two adjacent warp yarns 341a and 341b of the warp are twisted around consecutive weft yarns 311 and 312 to form a spiral pair.
  • the two adjacent warp yarns 341a and 341b may be two electrically conductive warp yarns or may be of different types, one being electrically conductive and the other one being electrically insulating.
  • two consecutive weft yarns of the first layer may be of the same type or of different types.
  • a first warp yarn 341a is electrically conductive and a second warp yarn 341b is electrically insulating, the two warp yarns being twisted around electrically insulating weft yarns 312 and an electrically conductive weft yarn 311, thereby establishing an electrical connection between the first warp yarn 341a and the electrically conductive weft yarn 311.
  • the electrically conductive weft yarns 341a and 341b may be interwoven in the multilayer structure in a similar manner as that described with reference to Fig. 1, thereby establishing a via-connection in the textile.
  • Leno structure is particularly advantageous for a textile having a low yarn density (low fibre count).
  • more than one electrically conductive yarn may be arranged adjacent to each other within the first layer and electrically separated from other electrically conductive yarns by at least one electrically insulating yarn.
  • an electrically conductive yarn may be made of one or more electrically conductive yarns.
  • the electrically conductive fabric (or weft) described in the embodiments above may be made of one or more electrically conductive yarns.
  • the number of insulating warp yarns electrically separating two adjacent electrically conductive warp yarns in the first layer may vary and various combinations are possible.
  • the multilayer structure may be made of more than three layers.
  • the third layer (130) may be made of two or more physical layers arranged between the first (110) and the second (120) layers, thereby forming a multilayer structure having four or more layers.
  • the warp and weft directions may be interchanged, thereby forming a textile comprising a multilayer structure having three or more layers and a weft comprising electrically conductive and insulating yarns interwoven within the yarns of the multilayer structure.
  • the present invention is applicable for all types of electronic and/or photonic multilayer textiles.
  • the textile of the present invention may be used for dynamic interior lighting systems at home or on the move (e.g. furniture upholsteries, curtains or carpets), wearable communication displays (e.g. in a bag or jacket) and photonic therapy devices such as a baby jaundice sleeping bag and an acne treating t-shirt.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Woven Fabrics (AREA)

Abstract

La présente invention concerne des tissus multicouches pour des applications photoniques et/ou électroniques. Le tissu (100) comporte une structure multicouche comprenant des première et seconde couches séparées électriquement par une troisième couche. La première couche comporte des fils d'isolation électrique (112) et au moins un fil conducteur d'électricité (111). Les seconde et troisième couches comportent des fils d'isolation électrique (133, 122) dans de sens de la trame. Au moins une liaison de trous d'interconnexion est réalisée entre un fil de chaîne conducteur d'électricité (141) et ledit fil de trame conducteur d'électricité (111) de la première couche par un entrelacement serré. Ainsi, la présente invention concerne un tissu souple (100) avec des connexions robustes par des trous d'interconnexion.
PCT/IB2008/054205 2007-10-26 2008-10-13 Connexions robustes dans un tissu multicouche WO2009053872A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07119347 2007-10-26
EP07119347.8 2007-10-26

Publications (1)

Publication Number Publication Date
WO2009053872A1 true WO2009053872A1 (fr) 2009-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/054205 WO2009053872A1 (fr) 2007-10-26 2008-10-13 Connexions robustes dans un tissu multicouche

Country Status (2)

Country Link
TW (1) TW200949032A (fr)
WO (1) WO2009053872A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010004262A3 (fr) * 2008-07-08 2010-03-25 Bae Systems Plc Tissus hybrides et composants structurels les incorporant
WO2014163882A1 (fr) * 2013-03-13 2014-10-09 Federal-Mogul Powertrain, Inc. Étoffe antiparasite, manchette enroulable faite dans cette étoffe, et procédé de réalisation correspondant
WO2015067626A1 (fr) * 2013-11-05 2015-05-14 Koninklijke Philips N.V. Dispositif textile électriquement conducteur
US9119916B2 (en) 2010-03-23 2015-09-01 Fresenius Medical Care Deutschland Gmbh Device for detecting moisture for use with a device for monitoring an access to a patient, in particular for monitoring the vascular access in an extracorporeal blood treatment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479565A (en) * 1967-09-06 1969-11-18 Southern Weaving Co Woven circuit device
US3631298A (en) * 1969-10-24 1971-12-28 Bunker Ramo Woven interconnection structure
US20030211797A1 (en) * 2002-05-10 2003-11-13 Hill Ian Gregory Plural layer woven electronic textile, article and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479565A (en) * 1967-09-06 1969-11-18 Southern Weaving Co Woven circuit device
US3631298A (en) * 1969-10-24 1971-12-28 Bunker Ramo Woven interconnection structure
US20030211797A1 (en) * 2002-05-10 2003-11-13 Hill Ian Gregory Plural layer woven electronic textile, article and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010004262A3 (fr) * 2008-07-08 2010-03-25 Bae Systems Plc Tissus hybrides et composants structurels les incorporant
AU2009269881B2 (en) * 2008-07-08 2014-09-11 Bae Systems Plc Hybrid fabric materials. and structural components incorporating same
AU2009269881B9 (en) * 2008-07-08 2014-10-30 Bae Systems Plc Hybrid fabric materials. and structural components incorporating same
US9119916B2 (en) 2010-03-23 2015-09-01 Fresenius Medical Care Deutschland Gmbh Device for detecting moisture for use with a device for monitoring an access to a patient, in particular for monitoring the vascular access in an extracorporeal blood treatment
US9867934B2 (en) 2010-03-23 2018-01-16 Fresenius Medical Care Deutschland Gmbh Device for detecting moisture for use with a device for monitoring an access to a patient, in particular for monitoring the vascular access in an extracorporeal blood treatment
WO2014163882A1 (fr) * 2013-03-13 2014-10-09 Federal-Mogul Powertrain, Inc. Étoffe antiparasite, manchette enroulable faite dans cette étoffe, et procédé de réalisation correspondant
US9913415B2 (en) 2013-03-13 2018-03-06 Federal-Mogul Powertrain Llc EMI shielding textile fabric, wrappable sleeve constructed therefrom and method of construction thereof
WO2015067626A1 (fr) * 2013-11-05 2015-05-14 Koninklijke Philips N.V. Dispositif textile électriquement conducteur
CN105830541A (zh) * 2013-11-05 2016-08-03 飞利浦灯具控股公司 导电纺织品设备
US9826633B2 (en) 2013-11-05 2017-11-21 Philips Lighting Holding B.V. Electrically conducting textile device

Also Published As

Publication number Publication date
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