EP0435029A3 - Data carrier with a liquid crystal security element - Google Patents

Data carrier with a liquid crystal security element Download PDF

Info

Publication number
EP0435029A3
EP0435029A3 EP19900123341 EP90123341A EP0435029A3 EP 0435029 A3 EP0435029 A3 EP 0435029A3 EP 19900123341 EP19900123341 EP 19900123341 EP 90123341 A EP90123341 A EP 90123341A EP 0435029 A3 EP0435029 A3 EP 0435029A3
Authority
EP
European Patent Office
Prior art keywords
liquid crystal
security
security element
data carrier
plastic
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19900123341
Other languages
English (en)
Other versions
EP0435029B1 (de
EP0435029A2 (de
EP0435029B2 (de
Inventor
Christoph Heckenkamp
Gerhard Schwenk
Juergen Moll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAO Gesellschaft fuer Automation und Organisation mbH
Original Assignee
GAO Gesellschaft fuer Automation und Organisation mbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6396250&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0435029(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GAO Gesellschaft fuer Automation und Organisation mbH filed Critical GAO Gesellschaft fuer Automation und Organisation mbH
Publication of EP0435029A2 publication Critical patent/EP0435029A2/de
Publication of EP0435029A3 publication Critical patent/EP0435029A3/de
Publication of EP0435029B1 publication Critical patent/EP0435029B1/de
Application granted granted Critical
Publication of EP0435029B2 publication Critical patent/EP0435029B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/364—Liquid crystals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D2033/26—

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Liquid Crystal (AREA)
  • Burglar Alarm Systems (AREA)
  • Laminated Bodies (AREA)
EP90123341A 1989-12-22 1990-12-05 Datenträger mit einem Flüssigkristall-Sicherheitselement Expired - Lifetime EP0435029B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942663 1989-12-22
DE3942663A DE3942663A1 (de) 1989-12-22 1989-12-22 Datentraeger mit einem fluessigkristall-sicherheitselement

Publications (4)

Publication Number Publication Date
EP0435029A2 EP0435029A2 (de) 1991-07-03
EP0435029A3 true EP0435029A3 (en) 1991-09-18
EP0435029B1 EP0435029B1 (de) 1995-08-09
EP0435029B2 EP0435029B2 (de) 2003-01-02

Family

ID=6396250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123341A Expired - Lifetime EP0435029B2 (de) 1989-12-22 1990-12-05 Datenträger mit einem Flüssigkristall-Sicherheitselement

Country Status (6)

Country Link
EP (1) EP0435029B2 (de)
JP (1) JP3244278B2 (de)
AT (1) ATE126135T1 (de)
CA (1) CA2032587C (de)
DE (2) DE3942663A1 (de)
ES (1) ES2075871T5 (de)

Cited By (1)

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RU2344054C2 (ru) * 2003-07-07 2009-01-20 Коммонвелс Сайнтифик Энд Индастриал Рисеч Организейшен Способ кодирования латентного изображения

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* Cited by examiner, † Cited by third party
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RU2344054C2 (ru) * 2003-07-07 2009-01-20 Коммонвелс Сайнтифик Энд Индастриал Рисеч Организейшен Способ кодирования латентного изображения

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EP0435029B1 (de) 1995-08-09
ES2075871T3 (es) 1995-10-16
EP0435029A2 (de) 1991-07-03
DE3942663A1 (de) 1991-06-27
ES2075871T5 (es) 2003-07-16
ATE126135T1 (de) 1995-08-15
DE59009504D1 (de) 1995-09-14
CA2032587A1 (en) 1991-06-23
CA2032587C (en) 1996-07-09
JPH04144796A (ja) 1992-05-19
EP0435029B2 (de) 2003-01-02
JP3244278B2 (ja) 2002-01-07

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