JP2012189564A - Flexible sheet for transmitting surface pressure of taken finger print pattern - Google Patents

Flexible sheet for transmitting surface pressure of taken finger print pattern Download PDF

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JP2012189564A
JP2012189564A JP2011073491A JP2011073491A JP2012189564A JP 2012189564 A JP2012189564 A JP 2012189564A JP 2011073491 A JP2011073491 A JP 2011073491A JP 2011073491 A JP2011073491 A JP 2011073491A JP 2012189564 A JP2012189564 A JP 2012189564A
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flexible sheet
film
surface pressure
pressure
ultra
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Minoru Amishima
稔 網島
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Shinten Sangyo Co Ltd
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Shinten Sangyo Co Ltd
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Priority to JP2011073491A priority Critical patent/JP2012189564A/en
Priority to KR2020110010998U priority patent/KR20120006490U/en
Priority to CN201220023120XU priority patent/CN202428735U/en
Publication of JP2012189564A publication Critical patent/JP2012189564A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a flexible sheet for transmitting a surface pressure of a taken finger print pattern in particular, a flexible sheet for transmitting a surface pressure including a pressure-sensitive sheet put on a sensor part surface for detecting irregularity of a finger print as extra-thin as possible.SOLUTION: A flexible sheet for transmitting a surface pressure of a taken finger print pattern includes a pressure-sensitive sheet put on a sensor part surface, that is a flexible sheet formed by laminates such as a plurality of extra-thin PET films where a vapor deposition film of a conductive substance is sandwiched by the laminates.

Description

本発明は押捺指紋パターンの面圧力伝達用可撓性シートに関し、特に指紋の凹凸を正確に検出するためにセンサー部表面に載置される感圧シートをできるだけ極薄とした面圧力伝達用可撓性シートである。  The present invention relates to a flexible sheet for surface pressure transmission of an imprinted fingerprint pattern, and more particularly to surface pressure transmission with a pressure-sensitive sheet placed on the surface of a sensor unit being as thin as possible to accurately detect fingerprint irregularities. It is a flexible sheet.

本発明者は、先の特許出願において、携帯通信端末の認証決済システムおよびその認証決済方法を提案したが、それは携帯通信端末で検出した指紋情報の認証をインターネット上に設けた指紋登記所にて行い、適正かつ確実な電子認証、電子決済を行えるものであって、端末等の不正使用を防止し、操作性の面でも優れた画期的な携帯通信端末の認証決済システムおよびその認証決済方法を提供するものであった。In the previous patent application, the present inventor proposed an authentication settlement system and authentication settlement method for a mobile communication terminal, which is a fingerprint registration office provided on the Internet for authentication of fingerprint information detected by the mobile communication terminal. Performing appropriate and reliable electronic authentication and electronic payment, preventing unauthorized use of terminals and the like, and a groundbreaking mobile communication terminal authentication and payment method excellent in operability Was to provide.

更に本発明者は、前記せるシステムの確実な実行のために、指紋センサー部において、確実な押捺指紋パターンの面圧力を伝達できる可撓性シートを実現させる研究を進めていく必要性があった。  Furthermore, the present inventor needed to proceed with research to realize a flexible sheet capable of transmitting the surface pressure of a reliable fingerprint pattern in the fingerprint sensor unit for the reliable execution of the system described above. .

これまでの生体認証に利用される生体情報で最も確実で究極的な認証手段はＤＮＡではあるが、指紋の認証は最も使用頻度が高く信頼性の高い認証方式であって、数多くの指紋センサー装置が提案されており、一例として下記の特許公報を挙げることができる。  The most reliable and ultimate authentication means of biometric information used for biometric authentication so far is DNA, but fingerprint authentication is the most frequently used and highly reliable authentication method, and has many fingerprint sensor devices. As an example, the following patent publications can be cited.

特開平５−６１９６６号公報  JP-A-5-61966 特許第４２６６３６３号公報  Japanese Patent No. 4266363

前記せる特開平５−６１９６６号公報は、複数個の圧電薄膜素子をマトリックス状に配置して、各圧電薄膜素子に加えられた圧力を電気出力信号に変換することにより、指の指紋情報を検出する指紋センサーであり、前記せる特許第４２６６３６３号公報は、指を押しつけたときの圧力の強弱から指紋の紋様を検出させる指紋感知部と指紋の紋様の凹凸による圧力の違いを電位差として取出す検出回路からなる装置にタッチパネル機能を付随した感圧式指紋センサーであるが、いずれも指紋センサー部に載置して確実な押捺指紋パターンの面圧力を伝達できる可撓性シートを特別に設けるものではなかった。  In Japanese Patent Laid-Open No. 5-61966, a plurality of piezoelectric thin film elements are arranged in a matrix, and the pressure applied to each piezoelectric thin film element is converted into an electrical output signal, thereby detecting finger fingerprint information. Japanese Patent No. 4266363 discloses a detection circuit that detects a fingerprint pattern from the strength of pressure when a finger is pressed, and a detection circuit that takes out a difference in pressure due to unevenness of the fingerprint pattern as a potential difference However, none of these devices were specially provided with a flexible sheet that can be placed on the fingerprint sensor unit and transmit the surface pressure of a reliable fingerprint pattern. .

また、市販の指紋センサーを使用しても乾燥指や濡れ指の場合の指紋パターンの正確度に問題があり、耐水性や外部光源の影響もあり、指接触部の耐摩耗性や変形にも問題があったので、これらの問題を解決する必要があった。  Even if a commercially available fingerprint sensor is used, there is a problem with the accuracy of the fingerprint pattern in the case of dry or wet fingers, there is also the influence of water resistance and external light source, and the wear resistance and deformation of the finger contact area are also affected. Because there were problems, it was necessary to solve these problems.

指紋の凹凸を正確に検出するには可撓性シートをできる限り超極薄にし、しかも確実な可撓性でなければならならず、検出対象となる乾燥指、濡れ指、傷指、汚れ指、静電気帯電指の場合でも十分に対応でき、指紋パターンを正確に検出することができるものでなければならなかった。  In order to accurately detect fingerprint irregularities, the flexible sheet must be made ultrathin as much as possible, and it must be as flexible as possible, and dry, wet, wounded, and dirty fingers are detected. In the case of electrostatically charged fingers, it was necessary to be able to cope sufficiently and to detect the fingerprint pattern accurately.

本発明は前記せるような課題に応えるために鋭意研究の結果、これらの課題を解決するための知見を得ることができた。  As a result of intensive studies in order to meet the above-mentioned problems, the present invention has been able to obtain knowledge for solving these problems.

下記の構成からなる可撓性シートで、上記の課題を解決することのできる知見を見出したものであり、その特徴はセンサー部表面に載置される感圧シートが複数の超極薄ＰＥＴフィルム等の積層体で形成された可撓性シートであって、該積層体中に導電性物質の蒸着膜が介在挟持されていることを特徴とし、積層体が下層から順次に、超極薄ＰＥＴフィルム、両面粘着テープ、超極薄ＰＥＴフィルム、導電性物質の蒸着膜、微粘着ＰＥＴ表面保護テープによって構成されている可撓性シートである。  A flexible sheet having the following constitution has been found to be able to solve the above-mentioned problems, and its feature is that an ultra-thin PET film having a plurality of pressure-sensitive sheets placed on the surface of the sensor unit. A flexible sheet formed of a laminated body such as a laminated body, wherein a vapor deposited film of a conductive material is interposed in the laminated body. It is a flexible sheet composed of a film, a double-sided adhesive tape, an ultra-thin PET film, a vapor-deposited film of a conductive substance, and a slightly adhesive PET surface protective tape.

前記せる導電性物質の蒸着膜は金等の蒸着膜であることが望ましい。また、積層体の各層が、超極薄ＰＥＴフィルム６μ、両面粘着テープ１０μ、超極薄ＰＥＴフィルム２μ、導電性物質の蒸着膜３００Å、微粘着ＰＥＴ表面保護テープ１０μ〜１２μの膜厚で構成されている可撓性シートが好適な押捺指紋パターンの面圧力伝達用可撓性シートとして有用であるいう知見を得た。  The deposited film of the conductive material is preferably a deposited film of gold or the like. Each layer of the laminate is composed of ultra-thin PET film 6 μ, double-sided adhesive tape 10 μ, ultra-thin PET film 2 μ, conductive film 300 μm, and micro-adhesive PET surface protective tape 10 μ to 12 μ. The present inventors have found that the flexible sheet is useful as a flexible sheet for transmitting surface pressure of a suitable fingerprint pattern.

前記せる押捺指紋パターンの面圧力伝達用可撓性シートは優れた可撓性と復元性を有しており、積層体中に介在挟持されている金等の蒸着膜は、トランジスタまたはＴＦＴ（薄膜トランジスタ）の一部電極に作用し、圧力−電気変換する機能も備え、また、蒸着部はピンホールを皆無とし、湿気や水分の侵入を防ぐとともに、外部の光源を完全に遮断してセンサー部に対する光の影響を防止することもできる。  The flexible sheet for transmitting the surface pressure of the fingerprint pattern to be printed has excellent flexibility and resilience, and the deposited film such as gold interposed between the laminated body is a transistor or TFT (thin film transistor). ) Has a function of pressure-electrical conversion on some electrodes, and the vapor deposition part has no pinhole, prevents moisture and moisture from entering, and completely shuts off the external light source and prevents the sensor part from entering. The influence of light can also be prevented.

以上説明したように本発明に係る押捺指紋パターンの面圧力伝達用可撓性シートの構成によれば、乾燥指、濡れ指、傷指、汚れ指、静電気帯電指の場合でも対応でき、指紋パターンを正確に検出することができる優れた効果を得ることができた。  As described above, according to the configuration of the flexible sheet for surface pressure transmission of an imprinted fingerprint pattern according to the present invention, it can be applied to a dry finger, a wet finger, a wound finger, a dirty finger, and an electrostatically charged finger. It was possible to obtain an excellent effect that can be accurately detected.

可撓性シートを介して指で感圧センサー部を押圧した略示断面図である。  It is the schematic sectional drawing which pressed the pressure-sensitive sensor part with the finger | toe via the flexible sheet | seat. 可撓性シートの分解斜視図である。  It is a disassembled perspective view of a flexible sheet.

指紋の凹凸を正確に検出するには可撓性シート２をできる限り超極薄にしなければならず、しかも確実な可撓性を付与しなければならないので、本発明は多数の実験に基づいて以下の構成に達することができたものであり、その結果この積層体の構造によって最も正確に指紋３１の押捺指紋パターンをセンサー部１に伝達することのできる知見を得たものである。  In order to accurately detect the unevenness of the fingerprint, the flexible sheet 2 must be made extremely thin as much as possible, and a certain degree of flexibility must be imparted. Therefore, the present invention is based on numerous experiments. The following configuration has been achieved, and as a result, the knowledge that can transmit the fingerprint pattern of the fingerprint 31 to the sensor unit 1 most accurately by the structure of the laminate is obtained.

以下、図面に基づき本発明を具体的に説明する。図面において、図１は可撓性シートを介して指で感圧センサー部を押圧した略示断面図であり、図２は可撓性シートの分解斜視図である。図１に示すように指３を、可撓性シート２を介してセンサー部１に押し付けると、可撓性シート２は正確に指紋３１の押捺指紋パターンをセンサー部に伝達することができる。  Hereinafter, the present invention will be specifically described with reference to the drawings. In the drawings, FIG. 1 is a schematic cross-sectional view in which a pressure-sensitive sensor unit is pressed with a finger through a flexible sheet, and FIG. 2 is an exploded perspective view of the flexible sheet. As shown in FIG. 1, when the finger 3 is pressed against the sensor unit 1 via the flexible sheet 2, the flexible sheet 2 can accurately transmit the fingerprint pattern of the fingerprint 31 to the sensor unit.

図２に示すような実施例によれば、可撓性シート２はセンサー部１に載置される下層より順に、積層体の各層が、図番２１の超極薄ＰＥＴフィルム６μ、図番２２の両面粘着テープ１０μ、図番２３の超極薄ＰＥＴフィルム２μ、図番２４の金等の蒸着膜３００Å、図番２５の微粘着ＰＥＴ表面保護テープ１０μ〜１２μの膜厚で構成されて可撓性シートが最も好適に押捺指紋パターンをセンサー部１に伝達することができた。  According to the embodiment as shown in FIG. 2, the flexible sheet 2 is composed of the ultrathin PET film 6 μ of FIG. No. 23, ultra-thin PET film 2 μ of FIG. 23, 300 μm of vapor deposition film such as gold of FIG. 24, and slightly adhesive PET surface protection tape 10 μ to 12 μ of FIG. The adhesive sheet was most preferably able to transmit the fingerprint pattern to the sensor unit 1.

前記の微粘着ＰＥＴ表面保護テープ２５は、指紋残像が残らない表面処理が施されており、耐摩耗性にも優れた表面に形成されている。  The fine-adhesive PET surface protective tape 25 is subjected to a surface treatment that does not leave a fingerprint afterimage, and is formed on a surface with excellent wear resistance.

なお、本発明の可撓性シート２を載置するセンサー部１の構造は複数個の圧電薄膜素子をマトリックス状に配置し各圧電薄膜素子に加えられた圧力を電気出力信号に変換することにより指の指紋情報を検出する構造や、指を押しつけたときの圧力の強弱から指紋の紋様を検出させる指紋感知部と指紋の紋様の凹凸による圧力の違いを電位差として取出す検出回路からなるようなセンサー部の構造等に限らず、その他のセンサー部の構造であっても本発明の押捺指紋パターンの面圧力伝達用可撓性シートは多様なセンサー部に対して幅広く応用することができるものである。  The structure of the sensor unit 1 on which the flexible sheet 2 of the present invention is placed is obtained by arranging a plurality of piezoelectric thin film elements in a matrix and converting the pressure applied to each piezoelectric thin film element into an electrical output signal. A sensor that consists of a structure that detects fingerprint information of a finger and a detection circuit that detects the difference in pressure due to the unevenness of the fingerprint pattern as a potential difference, and detects the fingerprint pattern from the strength of the pressure when the finger is pressed The flexible sheet for surface pressure transmission of the fingerprint pattern of the present invention can be widely applied to various sensor parts even in the structure of other sensor parts as well as the structure of the parts. .

生体認証には多くの生体情報を利用した認証装置が使用されつつあり、指紋認証も多く利用されているが、残留指紋をゼラチンに移し取って人工指を作り、人工指で認証を通過させるような事件もおきているので、より正確な押捺指紋パターンをセンサー部に伝達することが必要であり、本発明の押捺指紋パターンの面圧力伝達用可撓性シートは産業上の利用価値が極めて高いものである。また、多様なセンサー部の構造にも利用できる利点もある。  For biometric authentication, authentication devices using a large amount of biometric information are being used, and fingerprint authentication is also widely used. However, it is assumed that artificial fingerprints are created by transferring residual fingerprints to gelatin, and authentication is passed with artificial fingers. Therefore, it is necessary to transmit a more accurate imprinted fingerprint pattern to the sensor unit, and the flexible sheet for transmitting the surface pressure of the imprinted fingerprint pattern according to the present invention has extremely high industrial utility value. Is. There is also an advantage that it can be used for various sensor structures.

１ センサー部
２ 可撓性シート
２１ 超薄膜ＰＥＴフィルム
２２ 両面接着フィルム
２３ 超薄膜ＰＥＴフィルム
２４ 蒸着膜
２５ 微粘着ＰＥＴ表面保護テープ
３ 指
３１ 指紋面DESCRIPTION OF SYMBOLS 1 Sensor part 2 Flexible sheet 21 Ultra-thin PET film 22 Double-sided adhesive film 23 Ultra-thin PET film 24 Deposition film 25 Slight adhesion PET surface protection tape 3 Finger 31 Fingerprint surface

Claims (3)

センサー部表面に載置される感圧シートが、複数の超極薄ＰＥＴフィルム等の積層体で形成された可撓性シートであって、該積層体中に導電性物質の蒸着膜が介在挟持されていることを特徴とする押捺指紋パターンの面圧力伝達用可撓性シート。  The pressure-sensitive sheet placed on the surface of the sensor unit is a flexible sheet formed of a laminated body such as a plurality of ultra-thin PET films, and a conductive material vapor-deposited film is interposed between the laminated bodies. A flexible sheet for transmitting surface pressure of an imprinted fingerprint pattern. 積層体が下層から順次に、超極薄ＰＥＴフィルム、両面粘着テープ、超極薄ＰＥＴフィルム、導電性物質の蒸着膜、微粘着ＰＥＴ表面保護テープによって構成されており、導電性物質の蒸着膜が金等の蒸着膜であることを特徴とする請求項１記載の押捺指紋パターンの面圧力伝達用可撓性シート。  The laminated body is composed of ultra-thin PET film, double-sided adhesive tape, ultra-thin PET film, vapor-deposited film of conductive material, and slightly-adhesive PET surface protective tape in order from the bottom layer. 2. The flexible sheet for transmitting surface pressure of an imprinted fingerprint pattern according to claim 1, which is a deposited film of gold or the like. 積層体各層の好適膜厚が、超極薄ＰＥＴフィルム６μ、両面粘着テープ１０μ、超極薄ＰＥＴフィルム２μ、金の蒸着膜３００Å、微粘着ＰＥＴ表面保護テープ１０μ〜１２μの膜厚であることを特徴とする請求項１記載の押捺指紋パターンの面圧力伝達用可撓性シート。  The preferred film thickness of each layer of the laminate is 6 μm of ultra-thin PET film, 10 μm of double-sided adhesive tape, 2 μ of ultra-thin PET film, 300 μm of vapor deposition film of gold, and 10 μm to 12 μm of slightly adhesive PET surface protective tape. The flexible sheet for transmitting surface pressure of an imprinted fingerprint pattern according to claim 1.
JP2011073491A 2011-03-10 2011-03-10 Flexible sheet for transmitting surface pressure of taken finger print pattern Withdrawn JP2012189564A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011073491A JP2012189564A (en) 2011-03-10 2011-03-10 Flexible sheet for transmitting surface pressure of taken finger print pattern
KR2020110010998U KR20120006490U (en) 2011-03-10 2011-12-12 Flexible sheet for face pressure transmitting of fingerprint pattern
CN201220023120XU CN202428735U (en) 2011-03-10 2012-01-18 Flexible plate for transferring surface pressure of press fingerprint pattern

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Application Number Priority Date Filing Date Title
JP2011073491A JP2012189564A (en) 2011-03-10 2011-03-10 Flexible sheet for transmitting surface pressure of taken finger print pattern

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JP2012189564A true JP2012189564A (en) 2012-10-04

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