KR20120006490U - Flexible sheet for face pressure transmitting of fingerprint pattern - Google Patents

Flexible sheet for face pressure transmitting of fingerprint pattern Download PDF

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KR20120006490U
KR20120006490U KR2020110010998U KR20110010998U KR20120006490U KR 20120006490 U KR20120006490 U KR 20120006490U KR 2020110010998 U KR2020110010998 U KR 2020110010998U KR 20110010998 U KR20110010998 U KR 20110010998U KR 20120006490 U KR20120006490 U KR 20120006490U
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flexible sheet
fingerprint
film
ultra
micrometers
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Korean (ko)
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미노루 아미시마
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신텐 산교 가부시키가이샤
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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

본 고안은 날인지문패턴의 면압력전달용 가요성 시트에 관한 것으로, 특히 지문의 요철을 정확하게 검출하기 위해 센서부 표면에 탑재되는 감압시트를 가능한 한 극박으로 한 면압력전달용 가요성 시트이다. 본 고안은 센서부 표면에 탑재되는 감압시트가 복수의 초극박 ＰＥＴ 필름 등의 적층체로 형성된 가요성 시트로서, 상기 적층체 내에 도전성 물질의 증착막이 개재되어 있는 것을 특징으로 하는 날인지문패턴의 면압력전달용 가요성 시트를 제공한다.The present invention relates to a flexible sheet for surface pressure transfer of a fingerprint fingerprint pattern, and in particular, to a surface pressure transfer flexible sheet having a pressure-sensitive sheet mounted on the surface of the sensor part as thin as possible in order to accurately detect irregularities of the fingerprint. The present invention is a flexible sheet in which a pressure-sensitive sheet mounted on the surface of a sensor unit is formed of a laminate of a plurality of ultra-thin PET films, and the like, and a surface pressure of a fingerprint pattern having a deposition film of a conductive material interposed therein. Provided is a flexible sheet for delivery.

Description

날인 지문패턴의 면압력전달용 가요성 시트{Flexible sheet for face pressure transmitting of fingerprint pattern}Flexible sheet for face pressure transmitting of fingerprint pattern

본 고안은 날인지문패턴의 면압력전달용 가요성 시트에 관한 것으로, 특히 지문의 요철을 정확하게 검출하기 위해 센서부 표면에 탑재되는 감압시트를 가능한 한 극박으로 한 면압력전달용 가요성 시트이다.The present invention relates to a flexible sheet for surface pressure transfer of a fingerprint fingerprint pattern, and in particular, to a surface pressure transfer flexible sheet having a pressure-sensitive sheet mounted on the surface of the sensor part as thin as possible in order to accurately detect irregularities of the fingerprint.

본 고안자는 앞서의 특허출원에서 휴대통신 단말의 인증결제 시스템 및 그 인증결제 방법을 제안했으나, 그것은 휴대통신 단말에서 검출한 지문정보의 인증을 인터넷상에 설치한 지문등기소에서 행하여 적정하고 또 확실한 전자인증, 전자결제를 행할 수 있는 것으로, 단말 등의 부정사용을 방지하고, 조작성 면에서도 우수한 획기적인 휴대통신 단말의 인증결제 시스템 및 그 인증결제 방법을 제공하는 것이었다.The present inventor has proposed the authentication payment system and the authentication payment method of the mobile communication terminal in the above-mentioned patent application, but it is performed by the fingerprint registry installed on the Internet to verify the fingerprint information detected by the mobile communication terminal. It is possible to perform authentication and electronic payment, and to provide an innovative authentication and payment system for a mobile communication terminal, which prevents illegal use of a terminal, etc., and also has excellent operability, and an authentication payment method thereof.

또한 본 고안자는, 상기한 시스템을 확실하게 실행하기 위해 지문센서부에 서 확실한 날인 지문패턴의 면압력을 전달할 수 있는 가요성 시트를 실현시키는 연구를 진행해 갈 필요성이 있었다.In addition, the present inventors need to proceed with the research to realize a flexible sheet capable of transmitting the surface pressure of the fingerprint pattern, which is a sure stamp in the fingerprint sensor unit in order to reliably execute the above system.

지금까지의 생체인증에 이용되는 생체정보에서 가장 확실하고 궁극적인 인증 수단은 ＤＮＡ이기는 하지만, 지문의 인증은 가장 사용 빈도가 높고 신뢰성이 높은 인증 방식으로, 수많은 지문센서장치가 제안되고 있고, 일례로서 하기의 특허공보를 들 수 있다.Although the most reliable and ultimate means of authentication in biometric information used up to now is DNA, fingerprint authentication is the most frequently used and reliable authentication method, and numerous fingerprint sensor devices have been proposed. The following patent publications are mentioned.

: 일본국 특개평 5-61966호 공보JP-A 5-61966 : 일본국 등록특허 제4266363호 공보: Japanese Patent Publication No. 4266363

상기한 일본국 특개평 5-61966호 공보는 복수 개의 압전박막소자를 매트릭스 상으로 배치하고, 각 압전박막소자에 가해진 압력을 전기출력신호로 변환함으로써 손가락의 지문정보를 검출하는 지문센서이며, 상기한 일본국 등록특허 제4266363호 공보는 손가락을 꽉 눌렀을 때의 압력의 강약으로부터 지문의 형태를 검출시키는 지문감지부와 지문의 형태의 요철에 의한 압력의 차이를 전위차로서 인출하는 검출회로로 이루어지는 장치에 터치 패널 기능을 부수한 감압식 지문센서인데, 모두 지문센서부에 탑재하여 확실한 날인 지문패턴의 면압력을 전달할 수 있는 가요성 시트를 특별히 설치하는 것은 아니었다.Japanese Patent Laid-Open No. 5-61966 discloses a fingerprint sensor which detects fingerprint information of a finger by arranging a plurality of piezoelectric thin film elements on a matrix and converting the pressure applied to each piezoelectric thin film element into an electrical output signal. Japanese Patent Laid-Open No. 4266363 is a device comprising a fingerprint sensing unit for detecting the form of a fingerprint from the strength of pressure when a finger is pressed tightly and a detection circuit for drawing out the difference in pressure due to the irregularities of the form of the fingerprint as a potential difference. It is a pressure-sensitive fingerprint sensor with a touch panel function, but it is not installed in a flexible sheet that can be mounted on the fingerprint sensor unit to transfer the surface pressure of the fingerprint pattern is surely stamped.

또한, 시판하는 지문센서를 사용해도 건조한 손가락이나 젖은 손가락인 경우의 지문 패턴의 정확도에 문제가 있고, 내수성이나 외부광원의 영향도 있으며, 손가락 접촉부의 내마모성이나 변형에도 문제가 있었으므로, 이러한 문제를 해결할 필요가 있었다.In addition, even if a commercially available fingerprint sensor is used, there is a problem in the accuracy of the fingerprint pattern in the case of dry or wet fingers, water resistance and external light sources, and abrasion resistance and deformation of the finger contact part. I needed to solve it.

지문의 요철을 정확하게 검출하기 위해서는 가요성 시트를 가능한 한 초극박으로 하고, 더구나 확실한 가요성이어야 하며, 검출 대상이 되는 건조한 손가락, 젖은 손가락, 상처난 손가락, 더러운 손가락, 정전기대전 손가락인 경우에도 충분히 대응할 수 있어 지문 패턴을 정확하게 검출할 수 있는 것이어야 하였다.In order to accurately detect the irregularities of the fingerprint, the flexible sheet should be as ultra-thin as possible, and moreover, it must be flexible enough, even if it is dry, wet, wounded, dirty or electrostatically charged. It had to be able to cope and to accurately detect a fingerprint pattern.

본 고안은 상기한 과제에 대응하기 위해 예의 연구한 결과, 이러한 과제를 해결하기 위한 고안을 얻을 수 있었다.As a result of earnestly researching the present invention in order to cope with the above problems, the present invention was able to obtain an idea for solving the above problems.

하기의 구성으로 이루어지는 가요성 시트에서, 상기의 과제를 해결할 수 있는 고안을 발견한 것이며, 그 특징은 센서부 표면에 탑재되는 감압시트가 복수의 초극박 ＰＥＴ 필름 등의 적층체로 형성된 가요성 시트로서, 상기 적층체 내에 도전성 물질의 증착막이 개재되어 있는 것을 특징으로 하고, 적층체가 하층으로부터 순서대로 초극박 ＰＥＴ 필름, 양면점착 테이프, 초극박 ＰＥＴ 필름, 도전성 물질의 증착막, 미세점착 ＰＥＴ 표면보호 테이프에 의해 구성되어 있는 가요성 시트이다.In the flexible sheet which consists of the following structures, the invention which has solved the said subject was discovered, The characteristic is the flexible sheet in which the pressure-sensitive sheet mounted on the surface of a sensor part was formed from laminated bodies, such as some ultra-thin PET film. And a vapor deposition film of a conductive material is interposed in the laminate, and the laminate is deposited on the ultra-thin PET film, the double-sided adhesive tape, the ultra-thin PET film, the vapor-deposited film of the conductive material, and the microadhesive PET surface protection tape in order from the lower layer. It is a flexible sheet constituted by.

상기한 도전성 물질의 증착막은 금 등의 증착막인 것이 바람직하다. 또한, 적층체의 각 층이 초극박 ＰＥＴ 필름 6㎛, 양면점착 테이프 10㎛, 초극박 ＰＥＴ 필름 2㎛, 도전성 물질의 증착막 300Å, 미세점착 ＰＥＴ 표면보호 테이프 10㎛?12㎛의 막두께로 구성되어 있는 가요성 시트가 최적의 날인 지문패턴의 면압력전달용 가요성 시트로서 유용하다는 고안을 얻었다.It is preferable that the above-mentioned vapor deposition film of the conductive material is a vapor deposition film such as gold. In addition, each layer of a laminated body consists of the ultra-thin PET film 6 micrometers, the double-sided adhesive tape 10 micrometers, the ultra-thin PET film 2 micrometers, the vapor-deposited film 300 kV of a conductive material, and the microadhesive PET surface protection tape 10 micrometers-12 micrometers. It has been devised that the flexible sheet is useful as a flexible sheet for surface pressure transfer of a fingerprint pattern which is an optimal blade.

상기한 날인지문패턴의 면압력전달용 가요성 시트는 우수한 가요성과 복원성을 갖고 있고, 적층체 내에 개재되어 있는 금 등의 증착막은 트랜지스터 또는 ＴＦＴ(박막 트랜지스터)의 일부 전극으로 작용하고, 압력-전기 변환하는 기능도 구비하고, 또한 증착부는 핀 홀을 모두 없애 습기나 수분의 침입을 막는 동시에, 외부의 광원을 완전히 차단하여 센서부에 대한 빛의 영향을 방지할 수도 있다.The above-described flexible sheet for surface pressure transfer of the fingerprint pattern has excellent flexibility and resilience, and a deposited film such as gold interposed in the laminate acts as a part of an electrode of a transistor or TFT (thin film transistor), and is used for pressure-electricity. It also has a function of converting, and the evaporation unit also prevents the intrusion of moisture or moisture by removing all the pinholes, and at the same time can completely block the external light source to prevent the influence of light on the sensor unit.

이상 설명한 바와 같이 본 고안에 따른 날인 지문패턴의 면압력전달용 가요성 시트의 구성에 의하면, 건조한 손가락, 젖은 손가락, 상처난 손가락, 더러운 손가락, 정전기대전 손가락의 경우에도 대응할 수 있어 지문 패턴을 정확하게 검출할 수 있는 우수한 효과를 얻을 수 있었다.As described above, according to the configuration of the flexible sheet for surface pressure transfer of the fingerprint pattern according to the present invention, it is possible to cope with dry fingers, wet fingers, wounded fingers, dirty fingers, electrostatically charged fingers, An excellent effect that could be detected was obtained.

도 1은 가요성 시트를 개재하여 손가락으로 감압센서부를 가압한 개략단면도이다.
도 2는 가요성 시트의 분해 사시도 이다.1 is a schematic cross-sectional view of pressing the pressure-sensitive sensor unit with a finger through a flexible sheet.
2 is an exploded perspective view of the flexible sheet.

지문의 요철을 정확하게 검출하기 위해서는 가요성 시트(2)를 가능한 한 초극박으로 해야 하며, 더구나 확실한 가요성을 부여해야 하므로 본 고안은 다수의 실험에 기초하여 이하의 구성에 달할 수 있었던 것이며, 그 결과, 이 적층체의 구조에 의해 가장 정확하게 지문(31)의 날인지문패턴을 센서부(1)에 전달할 수 있는 지견을 얻은 것이다.In order to accurately detect the irregularities of the fingerprint, the flexible sheet 2 should be made as ultra-thin as possible, and furthermore, since it is necessary to provide reliable flexibility, the present invention has been able to reach the following configuration based on a number of experiments. As a result, the knowledge of being able to transmit the fingerprint recognition pattern of the fingerprint 31 to the sensor part 1 most accurately by the structure of this laminated body was obtained.

이하, 도면에 기초하여 본 고안을 구체적으로 설명한다. 도면에 있어서, 도 1은 가요성 시트를 개재하여 손가락으로 감압센서부를 가압한 개략단면도이며, 도 2는 가요성 시트의 분해 사시도 이다. 도 1에 도시하는 바와 같이 손가락(3)을 가요성 시트(2)을 개재하여 센서부(1)에 누르면, 가요성 시트(2)는 정확하게 지문(31)의 날인지문패턴을 센서부에 전달할 수 있다.Hereinafter, the present invention will be described in detail with reference to the drawings. 1 is a schematic cross-sectional view of pressing the pressure-sensitive sensor unit with a finger via 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 on the sensor unit 1 via the flexible sheet 2, the flexible sheet 2 accurately transmits the fingerprint pattern of the fingerprint 31 to the sensor unit. Can be.

도 2에 도시하는 바와 같은 실시 예에 의하면, 가요성 시트(2)는 센서부(1)에 탑재되는 하층으로부터 순서대로 적층체의 각 층이, 부호 21의 초극박 ＰＥＴ 필름 6㎛, 부호 22의 양면점착 테이프 10㎛, 부호 23의 초극박 ＰＥＴ 필름 2㎛, 부호 24의 금 등의 증착막 300Å, 부호 25의 미세점착 ＰＥＴ 표면보호 테이프 10㎛?12㎛의 막두께로 구성되어 가요성 시트가 가장 적합하게 날인 지문패턴을 센서부(1)에 전달할 수 있었다.According to the Example as shown in FIG. 2, the flexible sheet 2 has each layer of a laminated body in order from the lower layer mounted to the sensor part 1, the ultra-thin PET film 6 micrometers of code | symbol 21, and code | symbol 22. FIG. A double-sided adhesive tape having a thickness of 10 μm, an ultra-thin PET film having a sign of 23, 2 μm, a deposited film 300Å such as a gold of 24, a fine adhesive PET surface protection tape having a sign of 25, and having a film thickness of 10 μm to 12 μm. The most suitable fingerprint pattern could be transferred to the sensor unit 1.

상기 미세점착 ＰＥＴ 표면보호 테이프(25)는 지문 잔상이 남지 않는 표면처리가 실시되고 있어 내마모성에도 우수한 표면에 형성되어 있다.The microadhesive PET surface protection tape 25 is formed on a surface excellent in abrasion resistance because surface treatment is performed in which no fingerprint residual image remains.

한편, 본 고안의 가요성 시트(2)를 탑재하는 센서부(1)의 구조는 복수개의 압전박막소자를 매트릭스 상으로 배치하여 각 압전박막소자에 가해진 압력을 전기출력신호로 변환함으로써 손가락의 지문정보를 검출하는 구조나, 손가락을 눌렀을 때의 압력의 강약으로부터 지문의 형태를 검출시키는 지문감지부와 지문의 형태의 요철에 의한 압력의 차이를 전위차로서 인출하는 검출회로로 이루어지는 센서부의 구조 등에 한정되지 않고, 그 밖의 센서부의 구조여도 본 고안의 날인지문패턴의 면압력전달용 가요성 시트는 다양한 센서부에 대하여 폭넓게 응용할 수 있는 것이다.On the other hand, the structure of the sensor unit 1 on which the flexible sheet 2 of the present invention is mounted has a plurality of piezoelectric thin film elements arranged in a matrix to convert the pressure applied to each piezoelectric thin film element into an electrical output signal, thereby fingerprinting a finger. It is limited to a structure for detecting information or a structure of a sensor part comprising a fingerprint detection unit for detecting the form of the fingerprint from the strength of the pressure when a finger is pressed and a detection circuit for drawing out the difference in pressure due to the unevenness of the form of the fingerprint as a potential difference. However, even if the structure of the other sensor unit, the flexible sheet for surface pressure transfer of the fingerprint pattern of the present invention can be widely applied to various sensor units.

생체인증에는 많은 생체정보를 이용한 인증 장치가 사용되고 있으며, 지문인증도 많이 이용되고 있으나, 잔류 지문을 젤라틴에 옮겨 복사하여 인공손가락을 만들고, 인공손가락으로 인증을 통과시키는 등의 사건도 일어나고 있으므로, 보다 정확한 날인지문패턴을 센서부에 전달하는 것이 필요하며, 본 고안의 날인지문패턴의 면압력전달용 가요성 시트는 산업상의 이용 가치가 매우 높은 것이다. 또한, 다양한 센서부의 구조에도 이용할 수 있는 이점도 있다.In the biometric authentication, a large number of biometric information authentication devices are used, and fingerprint authentication is also widely used. However, since the remaining fingerprints are transferred to gelatin, the artificial finger is made, and the authentication is performed with the artificial finger. It is necessary to transfer the precise fingerprint pattern to the sensor unit, the flexible sheet for the surface pressure transfer of the fingerprint pattern of the present design is very high in industrial use value. In addition, there is an advantage that can be used in the structure of various sensor units.

1 : 센서부 2 : 가요성 시트
21 : 초박막 ＰＥＴ 필름 22 : 양면접착 필름
23 : 초박막 ＰＥＴ 필름 24 : 증착막
25 : 미세점착 ＰＥＴ 표면보호 테이프
3 : 손가락 31 : 지문면1 sensor 2 flexible sheet
21: ultra thin PET film 22: double sided adhesive film
23: ultra thin PET film 24: deposited film
25: fine adhesion PET surface protection tape
3: finger 31: fingerprint surface

Claims (3)

센서부 표면에 탑재되는 감압시트가 복수의 초극박 ＰＥＴ 필름 등의 적층체로 형성된 가요성 시트로서, 상기 적층체 내에 도전성 물질의 증착막이 개재되어 있는 것을 특징으로 하는 날인 지문패턴의 면압력전달용 가요성 시트.The pressure-sensitive sheet mounted on the surface of the sensor unit is a flexible sheet formed of a laminate of a plurality of ultra-thin PET films, etc., wherein a deposition film of a conductive material is interposed in the laminate. Castle sheet. 제1항에 있어서,
상기 적층체가 하층으로부터 순서대로 초극박 ＰＥＴ 필름, 양면 점착테이프, 초극박 ＰＥＴ 필름, 도전성 물질의 증착막, 미세점착 ＰＥＴ 표면보호 테이프로 구성되어 있고, 도전성 물질의 증착막이 금 등의 증착막인 것을 특징으로 하는 날인지문패턴의 면압력전달용 가요성 시트.The method of claim 1,
The laminate is composed of an ultra-thin PET film, a double-sided adhesive tape, an ultra-thin PET film, a deposition film of a conductive material, a microadhesive PET surface protection tape in order from the lower layer, and the deposition film of the conductive material is a deposition film such as gold. Flexible sheet for the surface pressure transfer of the fingerprint pattern. 제1항에 있어서,
상기 적층체 각 층의 적합한 막두께가 초극박 ＰＥＴ 필름 6㎛, 양면 점착테이프 10㎛, 초극박 ＰＥＴ 필름 2㎛, 금의 증착막 300Å, 미세점착 ＰＥＴ 표면보호 테이프 10㎛?12㎛의 막두께인 것을 특징으로 하는 날인지문패턴의 면압력전달용 가요성 시트.

The method of claim 1,
The film thickness of each layer of the said laminated body is the ultra-thin PET film 6 micrometers, the double-sided adhesive tape 10 micrometers, the ultra-thin PET film 2 micrometers, the gold-deposited film 300 micrometers, and the microadhesive PET surface protection tape 10 micrometers-12 micrometers. Flexible sheet for the surface pressure transfer of the fingerprint pattern.

KR2020110010998U 2011-03-10 2011-12-12 Flexible sheet for face pressure transmitting of fingerprint pattern KR20120006490U (en)

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JP2011073491A JP2012189564A (en) 2011-03-10 2011-03-10 Flexible sheet for transmitting surface pressure of taken finger print pattern

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