JPS61181659A - Two-dimensional thermal head - Google Patents

Two-dimensional thermal head

Info

Publication number
JPS61181659A
JPS61181659A JP2095985A JP2095985A JPS61181659A JP S61181659 A JPS61181659 A JP S61181659A JP 2095985 A JP2095985 A JP 2095985A JP 2095985 A JP2095985 A JP 2095985A JP S61181659 A JPS61181659 A JP S61181659A
Authority
JP
Japan
Prior art keywords
thermal head
dimensional thermal
heating resistors
heating
resistors
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.)
Pending
Application number
JP2095985A
Other languages
Japanese (ja)
Inventor
Tomohiro Nakamori
仲森　智博
Kenji Kuroki
賢二 黒木
Takashi Kanamori
孝史 金森
Susumu Shibata
進 柴田
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP2095985A priority Critical patent/JPS61181659A/en
Publication of JPS61181659A publication Critical patent/JPS61181659A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent the creeping of current on the heating resistors of each dot by using a simple structure in which banded continuous heating resistors are formed in a matrixed state with interposition of insulator layers. CONSTITUTION:Plural X- and Y-axis-directed heating resistors 11 and 13 having a band-formed continuous Ni thin film pattern for examle, are arranged with a spacing in parallel on one side of a base plate 10 of glass, etc., in a continuous matrixed state with interposition of an insulator layer 12. Each supporting point through the insulator layer 12 of the resistors 11 and 13 acts as a heating point. When voltage is applied to two heating resistors forming the crossing point, a resultant heat quantity is obtained, and printing and displaying are made possible.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、サーマルプリンタ等に用いられる二次元サ
ーマルヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a two-dimensional thermal head used in a thermal printer or the like.

（従来の技術） 従来の二次元サーマルヘッドの等両回路を第２図に示す
、同図かられかるように、従来の二次元サーマルヘッド
は１ドツト１ドツトが独立した発熱抵抗体ｌをもち、マ
トリクス状に形成された給電体２及び３により所望のド
ツトの発熱抵抗体を選択的に発熱させる方式である。(Prior art) The circuit of a conventional two-dimensional thermal head is shown in Fig. 2. As can be seen from the figure, the conventional two-dimensional thermal head has an independent heating resistor l for each dot. This is a system in which desired dots of heat-generating resistors are selectively heated by power feeders 2 and 3 formed in a matrix.

この方式による二次元サーマルヘッドの構成は１例えば
米国特許第３，４８３，３５６号明細書に開示されるも
のと類似したものとなる。その−例を第３図に示す、同
図において、基板４上にＸ軸方向配線５が設けられ、絶
縁体６を介しスルーホール７によって発熱抵抗体８の一
端に接続されている。更に、発熱抵抗体８の他端はＹ軸
方向配線９に接続されている。すなわち、従来の方式で
構成された二次元サーマルヘッドは、スルーホールを有
する多層配線とドツト数分の独立した発熱抵抗体をもつ
ものになっている。The construction of a two-dimensional thermal head in this manner is similar to that disclosed in, for example, US Pat. No. 3,483,356. An example of this is shown in FIG. 3, in which an X-axis wiring 5 is provided on a substrate 4 and connected to one end of a heating resistor 8 through a through hole 7 via an insulator 6. Further, the other end of the heating resistor 8 is connected to a Y-axis direction wiring 9. That is, a two-dimensional thermal head constructed using the conventional method has multilayer wiring having through holes and independent heating resistors corresponding to the number of dots.

（発明が解決しようとする問題点） しかしながら、上記従来の二次元サーマルヘッドは次の
ような問題点を有する。第１に、前述したように、従来
の二次元サーマルヘッドはスルーホールを有する多層配
線とドツト数分の独立した発熱抵抗体を有するので、構
成が極めて複雑である。第２に、第２図の給電体２と３
の間に電圧を印加して選択されたドツトの発熱抵抗体を
通電した場合、この選択された発熱抵抗体以外の発熱抵
抗体にも電流が波れてしまう、従って、従来の二次元サ
ーマルヘッドでは、その構成１各ドツトにダイオード等
を設けない限り、非選択ドツトへの電流の回り込みを防
止することはできない。(Problems to be Solved by the Invention) However, the conventional two-dimensional thermal head described above has the following problems. First, as described above, the conventional two-dimensional thermal head has a multilayer wiring having through holes and as many independent heating resistors as the number of dots, so the structure is extremely complicated. Second, power feeders 2 and 3 in Figure 2
When a voltage is applied between the dots and the heating resistor of the selected dot is energized, the current flows to heating resistors other than the selected heating resistor. In Configuration 1, unless a diode or the like is provided for each dot, it is not possible to prevent the current from flowing into the non-selected dots.

従って、この発明はこれらの問題点を解決し、従来とは
異なる新たな構成の二次元サーマルヘッドを提供するこ
とを目的とする。Therefore, an object of the present invention is to solve these problems and provide a two-dimensional thermal head with a new configuration different from the conventional one.

（問題点を解決するための手段） この発明は、帯状の連続した発熱抵抗体を、絶縁層の対
向する面上にマトリクス状に配列して形成される二次元
サーマルヘッドにある。(Means for Solving the Problems) The present invention resides in a two-dimensional thermal head in which continuous band-shaped heating resistors are arranged in a matrix on opposing surfaces of an insulating layer.

（作　用） マトリクス状に配列された発熱抵抗体の絶縁層を介した
各交点は、発熱点として作用する。すなわち、例えばあ
る１つの交点を発熱させるためには、この交点を形成す
る２つの発熱抵抗体にそれぞれ電圧を印加して、これら
を通電する。すると、交点では、２つの発熱抵抗体のそ
れぞれの交点における発熱量が合成された発熱量が得ら
れる。従って、この合成された発熱量を用いて、印字や
表示等が可能となる。(Function) Each intersection of the heating resistors arranged in a matrix with an insulating layer in between acts as a heating point. That is, for example, in order to generate heat at a certain intersection, a voltage is applied to each of the two heating resistors forming this intersection to energize them. Then, at the intersection, the amount of heat generated is obtained by combining the amounts of heat generated at the intersections of the two heating resistors. Therefore, printing, display, etc. can be performed using this combined calorific value.

（実施例） 以下、この発明を実施例に基づき図面を参照して詳細に
説明する。(Example) Hereinafter, the present invention will be described in detail based on an example with reference to the drawings.

第１図はこの発明の一実施例を示す図で、同図（ａ）は
断面図、同図（ｂ）は平面図及び同図（Ｃ）は等価回路
を示す。第１図（ａ）及び（ｂ）において、ガラス等で
形成された基板ｌＯの一表面上にはＮｉ薄膜を用いて帯
状の連続したパターンとなるように形成された複数のＸ
軸方向発熱抵抗体１１が、Ｘ軸方向にほぼ平行に離間し
て配列されている。このパターンはホトリソグラフ、エ
ツチングにより形成される。このＸ軸方向発熱抵抗体１
１の上には、ポリイミド樹脂（例えば東し株式会社製の
セミコファイン５Ｐ−８１０）が塗布、ベータされ、２
〜５ル謬程度の薄い絶縁Ｈ１２が設けられている。更に
、絶縁層１２の上には、Ｎｉ薄膜を用いて帯状の連続し
たパターンとなるように形成されたＹ軸方向発熱抵抗体
１３が、Ｙ軸方向にほぼ平行に離間して配列されている
。このパターンも、前述のようにホトリソグラフ、エツ
チングにより形成される。FIG. 1 shows an embodiment of the present invention, in which (a) is a cross-sectional view, (b) is a plan view, and (c) is an equivalent circuit. In FIGS. 1(a) and 1(b), on one surface of a substrate IO made of glass or the like, a plurality of X
Axial heating resistors 11 are arranged substantially parallel to and spaced apart from each other in the X-axis direction. This pattern is formed by photolithography and etching. This X-axis heating resistor 1
A polyimide resin (for example, Semicofine 5P-810 manufactured by Toshi Co., Ltd.) is coated and betaened on top of 2.
A thin insulation H12 of about .about.5 mm is provided. Further, on the insulating layer 12, Y-axis heating resistors 13 formed using a Ni thin film in a continuous band-like pattern are arranged at a distance substantially parallel to the Y-axis direction. . This pattern is also formed by photolithography and etching as described above.

このように構成された二次元サーマルヘッドの等価回路
は、第１図（Ｃ）に示すとおりである。同図から、Ｘ軸
方向発熱抵抗体１１及びＹ軸方向発熱抵抗体１３が、絶
縁層１２（第１図（Ｃ）には図示しない）を介してマト
リクス状に連続して形成されていることかわかる。The equivalent circuit of the two-dimensional thermal head constructed in this way is as shown in FIG. 1(C). From the same figure, it can be seen that the X-axis direction heating resistor 11 and the Y-axis direction heating resistor 13 are continuously formed in a matrix shape with an insulating layer 12 (not shown in FIG. 1(C)) interposed therebetween. I understand.

次に、動作について、上述した二次元サーマルヘッドの
使用例に従って説明する。この二次元サーマルヘッドを
ディスプレイ用として用いる場合、二次元サーマルヘッ
ド上に示温層を設ける０例えば、８０℃で変色を起こす
示温剤を用いる場合、第１図（１）のＡ点を変色させる
ときは、ラインａ及びｂに電流を流し、これらのＸ軸方
向発熱抵抗体１１及びＹ軸方向発熱抵抗体１３を８０℃
以下で６０℃程度に発熱するように電圧を設定する。Next, the operation will be explained according to an example of use of the above-mentioned two-dimensional thermal head. When using this two-dimensional thermal head for display purposes, a temperature-indicating layer is provided on the two-dimensional thermal head. For example, when using a temperature-indicating agent that changes color at 80°C, when discoloring point A in Figure 1 (1), , a current is applied to lines a and b to heat the X-axis heating resistor 11 and the Y-axis heating resistor 13 to 80°C.
The voltage is set so that heat is generated to about 60°C below.

すると、ラインａとｂの交点であるＡ点は、Ｘ軸方向発
熱抵抗体１１及びＹ軸方向発熱抵抗体１３のそれぞれの
Ａ点における発熱量が合成され、１２０℃程度に発熱す
る。従って、示温層のうちＡ点のみが変色し、ラインａ
及びｂの他の部分は変色しない、また、この二次元サー
マルヘッドをプリンタ用として用いるときは、示温層の
かわりに感熱紙を密着させるか、またはインクリボンと
紙を密着させることにより、ディスプレイとして用いる
場合と同様の動作で印字が可能である。Then, at point A, which is the intersection of lines a and b, the amount of heat generated at point A of each of the X-axis heating resistor 11 and the Y-axis heating resistor 13 is combined, and heat is generated to about 120°C. Therefore, only point A of the temperature-indicating layer changes color, and line a
The other parts of and b do not change color. Also, when using this two-dimensional thermal head for a printer, it can be used as a display by attaching thermal paper instead of the temperature-indicating layer or by attaching the ink ribbon and paper. Printing can be performed using the same operations as when using the printer.

以上、この発明な一実施例に基づき説明した。The above description has been based on one embodiment of this invention.

上記実施例では、Ｘ軸方向発熱抵抗体１１及びＹ軸方向
発熱抵抗体１３としてＮｉを用いたが、この発明はこれ
に限定されず、他の金属等の材料を用いることができる
。特に、この場合、発熱抵抗体材料として温度抵抗係数
（ＴＣＲ）が正で高いもの、すなわち温度を高くすると
抵抗値の高くなる材料（一般に純金属）を用いることに
より、Ｘ軸方向発熱抵抗体１１とＹ軸方向発熱抵抗体１
３の絶縁層１２を介した交点の発熱量を他の部分にくら
べより大きくすることができる。また、絶縁層１２とし
てポリイミド樹脂を用いたが、この発明はこれに限定さ
れず、他の樹脂？適宜に選択可能である。In the above embodiment, Ni was used as the X-axis heating resistor 11 and the Y-axis heating resistor 13, but the present invention is not limited thereto, and other materials such as metals may be used. In particular, in this case, by using a material with a positive and high temperature resistance coefficient (TCR) as the heating resistor material, that is, a material (generally pure metal) whose resistance value increases as the temperature increases, the heating resistor 11 in the X-axis direction and Y-axis heating resistor 1
The amount of heat generated at the intersection through the insulating layer 12 of No. 3 can be made larger than that at other parts. Further, although polyimide resin is used as the insulating layer 12, the present invention is not limited thereto, and other resins may be used. It can be selected as appropriate.

（発明の効果） 以上説明したように、この発明によれば、帯状の連続し
た発熱抵抗体を絶縁層をはさんでマトリクス状に配列し
て形成される構成としたため、従来の二次元サーマルヘ
ッドのようにスルーホールを用いた複雑な多層構造にく
らべ、簡単な構造で製造コストの低い二次元サーマルヘ
ッドを提供することができる。また、上記のように簡単
な構造であるため、サーマルヘッドの大型化及びドツト
ピッチの精細化を容易に実施することができる。(Effects of the Invention) As explained above, according to the present invention, the structure is formed by arranging continuous band-shaped heating resistors in a matrix with an insulating layer sandwiched between them. It is possible to provide a two-dimensional thermal head with a simpler structure and lower manufacturing cost than the complex multilayer structure using through holes such as the one shown in FIG. Further, since the structure is simple as described above, it is possible to easily increase the size of the thermal head and refine the dot pitch.

更に、Ｘ軸方向及びＹ軸方向の発熱抵抗体は絶縁層を介
して完全に絶縁されているので、従来の二次元サーマル
ヘッドのように各ドツトの発熱抵抗体に電流の回り込み
を防ＩＦするダイオード等を設ける必要はない、この発
明は、サーマルプリンタやサーマルディスプレイ等に適
用して好適である。Furthermore, since the heating resistors in the X- and Y-axis directions are completely insulated via an insulating layer, the IF prevents current from flowing around to the heating resistors of each dot, as in conventional two-dimensional thermal heads. The present invention, which does not require a diode or the like, is suitable for application to thermal printers, thermal displays, and the like.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明による二次元サーマルヘッドの一実施
例を示す図であって、第１図（ａ）は断面図、第１図（
ｂ）は平面図、第１図（Ｃ）は等価回路を示す図、第２
図は従来の二次元サーマルヘッドの等価回路を示す図、
及び第３図は第２図に示す等価回路に従う二次元サーマ
ルヘッドの構成を示す断面図である。 １０−ｍ−基板。 １１−−−　Ｘ軸方向発熱抵抗体、 １２−ｍ−絶縁層、 １３−〜−Ｙ軸方向発熱抵抗体。 特　　許　　出　　願　　人 沖電気工業株式会社 特許出願代理人FIG. 1 is a diagram showing an embodiment of a two-dimensional thermal head according to the present invention, in which FIG. 1(a) is a cross-sectional view, and FIG.
b) is a plan view, Fig. 1 (C) is a diagram showing an equivalent circuit, Fig. 2
The figure shows the equivalent circuit of a conventional two-dimensional thermal head.
3 is a sectional view showing the structure of a two-dimensional thermal head according to the equivalent circuit shown in FIG. 2. 10-m-substrate. 11--X-axis heat generating resistor, 12-m-insulating layer, 13--Y-axis heat generating resistor. Patent Application Hitoki Electric Industry Co., Ltd. Patent Application Agent

Claims (2)

【特許請求の範囲】[Claims] （１）帯状の連続した発熱抵抗体を、絶縁層の対向する
面上にマトリクス状に配列して形成されることを特徴と
する二次元サーマルヘッド。(1) A two-dimensional thermal head characterized in that continuous band-shaped heating resistors are arranged in a matrix on opposing surfaces of an insulating layer. （２）前記発熱抵抗体は温度抵抗係数が正でかつ大きい
材料を用いて形成されることを特徴とする特許請求の範
囲第１項に記載の二次元サーマルヘッド。(2) The two-dimensional thermal head according to claim 1, wherein the heating resistor is formed using a material having a positive and large temperature resistance coefficient.
JP2095985A 1985-02-07 1985-02-07 Two-dimensional thermal head Pending JPS61181659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2095985A JPS61181659A (en) 1985-02-07 1985-02-07 Two-dimensional thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2095985A JPS61181659A (en) 1985-02-07 1985-02-07 Two-dimensional thermal head

Publications (1)

Publication Number Publication Date
JPS61181659A true JPS61181659A (en) 1986-08-14

Family

ID=12041714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2095985A Pending JPS61181659A (en) 1985-02-07 1985-02-07 Two-dimensional thermal head

Country Status (1)

Country Link
JP (1) JPS61181659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1036662A2 (en) * 1999-03-16 2000-09-20 Shinko Electric Co. Ltd. Color printer and method of feeding paper to the same, thermal head and method of making the same, and lamp reflex board and thermal recording device using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1036662A2 (en) * 1999-03-16 2000-09-20 Shinko Electric Co. Ltd. Color printer and method of feeding paper to the same, thermal head and method of making the same, and lamp reflex board and thermal recording device using the same
EP1036662A3 (en) * 1999-03-16 2001-01-24 Shinko Electric Co. Ltd. Color printer and method of feeding paper to the same, thermal head and method of making the same, and lamp reflex board and thermal recording device using the same
US6474886B1 (en) 1999-03-16 2002-11-05 Shinko Electric Co., Ltd. Color printer and method of feeding paper by tension rollers

Similar Documents

Publication Publication Date Title
US4636812A (en) Thermal print head temperature control
JP4894335B2 (en) Planar heating element
JPS61181659A (en) Two-dimensional thermal head
JPS61181661A (en) Two-dimensional thermal head
JPS61181660A (en) Two-dimensional thermal head
JPS6213367A (en) Thermal head
JPS62216763A (en) Thermal-printing-head
JPH065893Y2 (en) Thermal head
JP2868365B2 (en) Pattern shift detection structure in thermal head
JPS62236763A (en) Plane thermal head
JPH07192847A (en) Resistor heater
JPS61283570A (en) Heat ray radiating head
JPS62207658A (en) Thermal head
JPH07192857A (en) Resistor heater
JPS62187051A (en) Thermal head
JPH07125282A (en) Thermal head
JPH062424B2 (en) Thermal printer
JPH0239955A (en) Thermal head
JP3354146B2 (en) Optical print head
JPH0442136Y2 (en)
JPH0452148A (en) Thermal head
JPH03275365A (en) Thermal head
JPH03262654A (en) Thermal head
JPH04251759A (en) Serial type thermal head
JPS62286760A (en) Thermal head