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JP3374225B2 - Magnetic card with display - Google Patents

Magnetic card with display

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Publication number
JP3374225B2
JP3374225B2 JP29845994A JP29845994A JP3374225B2 JP 3374225 B2 JP3374225 B2 JP 3374225B2 JP 29845994 A JP29845994 A JP 29845994A JP 29845994 A JP29845994 A JP 29845994A JP 3374225 B2 JP3374225 B2 JP 3374225B2
Authority
JP
Japan
Prior art keywords
magnetic
display
card
magnetic layer
pole
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.)
Expired - Fee Related
Application number
JP29845994A
Other languages
Japanese (ja)
Other versions
JPH08156400A (en
Inventor
勝琉 鈴木
光夫 西村
隆 杉山
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.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal Co Ltd
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 Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP29845994A priority Critical patent/JP3374225B2/en
Publication of JPH08156400A publication Critical patent/JPH08156400A/en
Application granted granted Critical
Publication of JP3374225B2 publication Critical patent/JP3374225B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Duplication Or Marking (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、磁性体層に記録されて
いるデータを目視できる表示器を備えた磁気カード(以
下“表示器付き磁気カード”という)に関するものであ
る。 【0002】 【関連技術】前述のような表示器付き磁気カードは、使
用者がカードリーダを用いることなく、磁気記録内容を
目視確認できるので、ポイントカード,プリペイドカー
ドに好適であり、既に実用化されている。 【0003】図3は、本出願人の出願にかかる特願平6
−286670号に開示の表示器付き磁気カードの構成
を示す図であり、(a)は平面図、(b)は(a)の矢
印Aの向きから見た断面図である。 【0004】図3において、5はポリ塩化ビニール製の
カードの基材であり、その開口部に後述の構成の表示媒
体(請求項の表示器に対応する)2が嵌め込まれてい
る。3は表示媒体2で表示される可視像である。この表
示媒体2が嵌め込まれた基材5の両面には透明塩化ビニ
ール製の保護材4,6が接着されている。なお、基材5
の表面には予め所要の印刷が行われており、表示媒体2
部分は外部から透明窓部9のように見える。7は不図示
の記録トラックを有する磁気ストライプであり、不図示
のカードライタにより所要のデータが書き込まれる。 【0005】前記表示媒体2は、マイクロカプセルを多
数、合成樹脂内に分散させたものを、磁性体層8上に配
置し、これらを板状に形成したものである。マイクロカ
プセル内には、液体と、この液体中に浮遊しかつ磁場に
感応する磁性粒子とが封入されている。このマイクロカ
プセルを有する表示器は、たとえば特開平5−1657
8号公報等に詳しく説明されている。 【0006】この表示媒体2の動作原理を図4〜図7の
模式図により説明する。磁性体層8は、多数の微小磁石
の集まりと考えることができる。不図示のカードリーダ
ライタの磁気ヘッドを磁気カード1の保護材6側に接触
させ、磁気ストライプ7の磁気トラックからデータを読
み取り、演算を行い、その結果を磁気トラックに書き込
む。この際に、残高等の所要のデータを磁性体層8に書
き込む。この書込みは、図4に示すように予め磁気ヘッ
ドの摺動方向に一様に磁化した磁性体層8を図5に示す
ように、磁気ヘッドにより部分的に反転磁化することに
より行われる。これにより所要のデータに応じたパター
ンに微小磁石10の磁化方向が変わる。このとき図6に
示すように、微小磁石10のN極とN極の隣接部12か
らS極とS極の隣接部11にかけて漏れ磁束13が出て
おり、マイクロカプセル内の磁性粒子14は隣接部1
1,12に引き付けられる。 【0007】透明窓部9から入射した光は、前述の磁性
粒子14の配置に応じて反射し、前記パターンが透明窓
部9から目視確認できる。磁性粒子14の配置は、磁性
体層8の抗磁力により維持されているので、カードのユ
ーザは何時でも透明窓部9から残高等の所要のデータ
(通常は数字)を目視確認できる。 【0008】 【発明が解決しようとする課題】前述の書込みでは、磁
気ヘッドによる1回の反転磁化によって、図5に示すよ
うに、S極とS極の隣接部11、N極とN極の隣接部1
2ができ、2本の線が表示される。 【0009】よって、たとえば7トラックの磁性体層8
で数字を表示すると、図7のように表示される。図7は
数字の零を表示した例である。 【0010】このように、現行の方式では線の集合で文
字,数字を表示しているので、必ずしも鮮明とはいえな
いという問題がある。 【0011】本発明は、このような状況のもとでなされ
たもので、磁気記録内容に応じた文字,数字等をより鮮
明に表示できる表示器付きの磁気カードを提供すること
を目的とするものである。 【0012】 【課題を解決するための手段】前記目的を達成するた
め、本発明では、磁性体層における磁性粉末の磁気配向
方向を、磁気ヘッドの摺動方向に対し傾けている。 【0013】すなわち、表示器付き磁気カードを次の
(1)のとおりに構成するものである。 【0014】(1)磁性体層上に磁性粒子を移動自在に
配置し、前記磁性体層の磁気による前記磁性粒子の配置
状態を視るようにした表示器を備えた表示器付き磁気カ
ードであって、前記磁性体層における磁性粉末の磁気配
向方向を、前記磁性体層にデータを書き込む磁気ヘッド
の摺動方向に対し傾けた表示器付き磁気カード。 【0015】 【実施例】以下本発明を実施例により詳しく説明する。 【0016】実施例の“表示器付き磁気カード”の全体
構成は、図3に示す関連技術例の構成と同様であり、説
明は省略する。関連技術例と本実施例との相違点は、磁
性体層8における磁性粉末の磁気配向方向にある。 【0017】すなわち、関連技術例では、図5に示すよ
うに、磁気ヘッド14の摺動方向Bに対し磁性粉末10
は同一方向に配向されているに対し、本実施例では、図
1に示すように、磁気ヘッド21の摺動方向Bに対し磁
性粉末20は45°傾けて配向されている。 【0018】このため、本実施例では磁気ヘッド21に
よる1回の反転磁化により、図1に示すように、微小磁
石のN極とN極の隣接部22と、S極とS極の隣接部2
3が上下左右に形成され、四角形すなわちドットが表示
される。 【0019】本実施例により、たとえば7トラックの磁
性体層8で数字の零を表示すると、図2のように表示さ
れる。このように、本実施例によれば、文字,数字等が
ドット24の集合で表示されるので、文字,数字等をよ
り鮮明に表示することができる。 【0020】磁性体層8は、表示媒体2の基体に、磁気
粉末をバインダで溶いた磁性塗料を塗布して形成する。
その際、磁性塗料が固まる前に、静磁界をかけて磁性粉
末の磁化容易軸を磁界の方向に整列させ、所望の磁気配
向を得る。なおこの種の磁性体層に用いる磁気粉末の形
状は針状で、その長軸方向が磁化容易軸であり、短軸方
向が磁化困難軸である。 【0021】(変形)実施例では、表示媒体の基体の一
面に磁性体層を設けているが、本発明はこれに限らず、
表示媒体の基体の一面およびこの面に対向する磁気カー
ドの表面に磁性体層を設ける形、あるいは表示媒体の基
体の一面に設けることなく、磁気カードの表面のみに設
ける形で実施することができる。 【0022】また、実施例では、磁性粒子を封入したマ
イクロカプセルを用いているが、本発明はこれに限ら
ず、たとえば適当に区切られた空間に磁性粒子を移動自
在に封入する形で実施することができる。 【0023】請求項の「磁性体層上に磁性粒子を移動自
在に配置し」という表現は、これらの変形の構成をも含
む意味で用いている。 【0024】また、実施例では、磁気配向を磁気ヘッド
の摺動方向に対し45°傾けているが、これに限らず適
宜の角度傾ける形で実施することができる。磁気ヘッド
のギャップの方向は、摺動方向に直交する方向に限ら
ず、たとえば、磁気配向方向に直交する方向とする形で
実施することができる。 【0025】 【発明の効果】以上説明したように、本発明によれば、
表示器において、文字,数字等がドットで表示でき、文
字,数字等をより鮮明に表示することができる表示器付
きの磁気カードを提供することができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic card provided with a display capable of visually confirming data recorded on a magnetic layer (hereinafter referred to as "magnetic card with display"). ). 2. Related Art A magnetic card with an indicator as described above is suitable for a point card and a prepaid card because a user can visually check the contents of magnetic recording without using a card reader. Have been. [0003] FIG. 3 is a diagram showing a Japanese Patent Application No. Hei 6 (Japanese Patent Application) No.
BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the magnetic card with a display disclosed by -286670, (a) is a top view, (b) is sectional drawing seen from the direction of arrow A of (a). [0004] In FIG. 3, reference numeral 5 denotes a base material of a card made of polyvinyl chloride, and a display medium (corresponding to a display device in the claims) 2 having a configuration described later is fitted in an opening of the card. Reference numeral 3 denotes a visible image displayed on the display medium 2. Protective members 4 and 6 made of transparent vinyl chloride are adhered to both surfaces of the substrate 5 in which the display medium 2 is fitted. In addition, the substrate 5
Has been printed in advance on the surface of the display medium 2.
The portion looks like a transparent window 9 from the outside. Reference numeral 7 denotes a magnetic stripe having a recording track (not shown), and required data is written by a card writer (not shown). The display medium 2 is formed by dispersing a large number of microcapsules in a synthetic resin, disposing the microcapsules on the magnetic layer 8, and forming these into a plate shape. In the microcapsule, a liquid and magnetic particles suspended in the liquid and responsive to a magnetic field are encapsulated. A display having this microcapsule is disclosed in, for example, Japanese Patent Application Laid-Open No. H5-1657.
No. 8, for example. The principle of operation of the display medium 2 will be described with reference to FIGS. The magnetic layer 8 can be considered as a collection of a large number of micromagnets. A magnetic head of a card reader / writer (not shown) is brought into contact with the protective material 6 of the magnetic card 1 to read data from a magnetic track of the magnetic stripe 7, perform an operation, and write the result to the magnetic track. At this time, necessary data such as a balance is written to the magnetic layer 8. This writing is performed by partially reversing the magnetization of the magnetic layer 8 previously magnetized uniformly in the sliding direction of the magnetic head by the magnetic head as shown in FIG. As a result, the magnetization direction of the micro magnet 10 changes to a pattern corresponding to the required data. At this time, as shown in FIG. 6, the leakage magnetic flux 13 is emitted from the N pole and the N pole adjacent part 12 of the micromagnet 10 to the S pole and the S pole adjacent part 11, and the magnetic particles 14 in the microcapsule are adjacent to each other. Part 1
Attracted to 1,12. Light incident from the transparent window 9 is reflected in accordance with the arrangement of the magnetic particles 14 described above, and the pattern can be visually confirmed from the transparent window 9. Since the arrangement of the magnetic particles 14 is maintained by the coercive force of the magnetic layer 8, the user of the card can visually check required data such as balance (usually a number) from the transparent window 9 at any time. In the above-mentioned writing, as shown in FIG. 5, the adjacent portion 11 of the S pole and the S pole and the N pole and the N pole Adjacent part 1
2 is made and two lines are displayed. Therefore, for example, the magnetic layer 8 having seven tracks
When a numeral is displayed with, it is displayed as shown in FIG. FIG. 7 is an example in which the numeral zero is displayed. As described above, in the current system, characters and numbers are displayed by a set of lines, and therefore, there is a problem that it is not always clear. The present invention has been made under such circumstances, and it is an object of the present invention to provide a magnetic card with a display capable of displaying characters, numerals, and the like according to the contents of magnetic recording more clearly. Things. In order to achieve the above object, in the present invention, the magnetic orientation direction of the magnetic powder in the magnetic layer is inclined with respect to the sliding direction of the magnetic head. That is, a magnetic card with a display is configured as in the following (1). (1) A magnetic card with a display having a display in which magnetic particles are movably arranged on a magnetic layer and the arrangement of the magnetic particles is viewed by the magnetism of the magnetic layer. A magnetic card with a display, wherein a magnetic orientation direction of magnetic powder in the magnetic layer is inclined with respect to a sliding direction of a magnetic head for writing data to the magnetic layer. The present invention will be described in more detail with reference to the following examples. The overall configuration of the "magnetic card with display" of the embodiment is the same as the configuration of the related art example shown in FIG. 3, and a description thereof will be omitted. The difference between the related art example and this embodiment lies in the magnetic orientation direction of the magnetic powder in the magnetic layer 8. That is, in the related art example, as shown in FIG.
In the present embodiment, the magnetic powder 20 is oriented at an angle of 45 ° with respect to the sliding direction B of the magnetic head 21, as shown in FIG. For this reason, in the present embodiment, as shown in FIG. 1, the adjacent portion 22 between the N pole and the N pole and the adjacent portion between the S pole and the S pole by one reversal magnetization by the magnetic head 21. 2
3 are formed at the top, bottom, left and right, and a square, that is, a dot is displayed. According to the present embodiment, for example, when the number zero is displayed on the magnetic layer 8 of seven tracks, it is displayed as shown in FIG. As described above, according to the present embodiment, characters, numbers, and the like are displayed as a set of dots 24, so that characters, numbers, and the like can be displayed more clearly. The magnetic layer 8 is formed by applying a magnetic paint in which a magnetic powder is dissolved in a binder to the base of the display medium 2.
At this time, before the magnetic paint hardens, a static magnetic field is applied to align the axis of easy magnetization of the magnetic powder in the direction of the magnetic field to obtain a desired magnetic orientation. The shape of the magnetic powder used for this kind of magnetic layer is needle-like, with the major axis direction being the axis of easy magnetization and the minor axis direction being the hard axis. (Modification) In the embodiment, the magnetic layer is provided on one surface of the substrate of the display medium. However, the present invention is not limited to this.
The present invention can be implemented in a form in which a magnetic layer is provided on one surface of a display medium base and a surface of a magnetic card opposed to this surface, or provided only on the surface of a magnetic card without being provided on one surface of a display medium base. . In the embodiments, the microcapsules enclosing the magnetic particles are used. However, the present invention is not limited to this, and is implemented, for example, in such a manner that the magnetic particles are movably enclosed in an appropriately partitioned space. be able to. The expression "disposed magnetic particles on the magnetic layer movably" is used in the meaning including these modified configurations. In the embodiment, the magnetic orientation is inclined by 45 ° with respect to the sliding direction of the magnetic head. However, the present invention is not limited to this, and the magnetic orientation can be implemented at an appropriate angle. The direction of the gap of the magnetic head is not limited to the direction perpendicular to the sliding direction, but may be, for example, a direction perpendicular to the magnetic orientation direction. As described above, according to the present invention,
It is possible to provide a magnetic card with a display that can display characters, numbers, and the like with dots on the display and that can display characters, numbers, and the like more clearly.

【図面の簡単な説明】 【図1】 本発明の表示原理を示す模式図 【図2】 実施例の説明図 【図3】 関連技術例の構成を示す図 【図4】 関連技術例における磁性体層の書込み前の状
態を示す模式図 【図5】 関連技術例における磁性体層の書込み後の状
態を示す模式図 【図6】 関連技術例における表示媒体の動作原理を示
す模式図 【図7】 関連技術例の説明図 【符号の説明】 20 磁性粒子 22 N極とN極の隣接部 23 S極とS極の隣接部
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a display principle of the present invention. FIG. 2 is an explanatory view of an embodiment. FIG. 3 is a view showing a configuration of a related art example. FIG. FIG. 5 is a schematic diagram showing a state before writing of a body layer. FIG. 5 is a schematic diagram showing a state after writing of a magnetic layer in a related art example. FIG. 6 is a schematic diagram showing an operation principle of a display medium in a related art example. 7: Description of related art examples [Description of symbols] 20 Magnetic particles 22 Adjacent portion between N pole and N pole 23 Adjacent portion between S pole and S pole

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−294599(JP,A) 特開 平5−96888(JP,A) 特開 平6−87289(JP,A) 実開 昭55−132734(JP,U) 実開 昭63−125568(JP,U) 実開 平2−146073(JP,U) (58)調査した分野(Int.Cl.7,DB名) B42D 5/00 - 15/10 G11B 5/80 G11B 23/40 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-294599 (JP, A) JP-A-5-96888 (JP, A) JP-A-6-87289 (JP, A) 132734 (JP, U) Japanese Utility Model 63-125568 (JP, U) Japanese Utility Model 2-146073 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B42D 5/00-15 / 10 G11B 5/80 G11B 23/40

Claims (1)

(57)【特許請求の範囲】 【請求項1】 磁性体層上に磁性粒子を移動自在に配置
し、前記磁性体層の磁気による前記磁性粒子の配置状態
を視るようにした表示器を備えた表示器付き磁気カード
であって、前記磁性体層における磁性粉末の磁気配向方
向を、前記磁性体層にデータを書き込む磁気ヘッドの摺
動方向に対し傾けたことを特徴とする表示器付き磁気カ
ード。
(57) [Claim 1] A display device in which magnetic particles are movably arranged on a magnetic layer so that the arrangement state of the magnetic particles due to the magnetism of the magnetic layer is viewed. A magnetic card with a display provided with a display, wherein the magnetic orientation direction of the magnetic powder in the magnetic layer is inclined with respect to the sliding direction of a magnetic head that writes data to the magnetic layer. Magnetic card.
JP29845994A 1994-12-01 1994-12-01 Magnetic card with display Expired - Fee Related JP3374225B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29845994A JP3374225B2 (en) 1994-12-01 1994-12-01 Magnetic card with display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29845994A JP3374225B2 (en) 1994-12-01 1994-12-01 Magnetic card with display

Publications (2)

Publication Number Publication Date
JPH08156400A JPH08156400A (en) 1996-06-18
JP3374225B2 true JP3374225B2 (en) 2003-02-04

Family

ID=17859984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29845994A Expired - Fee Related JP3374225B2 (en) 1994-12-01 1994-12-01 Magnetic card with display

Country Status (1)

Country Link
JP (1) JP3374225B2 (en)

Also Published As

Publication number Publication date
JPH08156400A (en) 1996-06-18

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