JP2010009456A - Electrostatic capacity type touch panel - Google Patents

Electrostatic capacity type touch panel Download PDF

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JP2010009456A
JP2010009456A JP2008170177A JP2008170177A JP2010009456A JP 2010009456 A JP2010009456 A JP 2010009456A JP 2008170177 A JP2008170177 A JP 2008170177A JP 2008170177 A JP2008170177 A JP 2008170177A JP 2010009456 A JP2010009456 A JP 2010009456A
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electrode
touch panel
electrodes
viewed
interval
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Minoru Yoshikawa
実 吉川
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MICRO GIJUTSU KENKYUSHO KK
Micro Gijutsu Kenkyusho KK
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MICRO GIJUTSU KENKYUSHO KK
Micro Gijutsu Kenkyusho KK
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrostatic capacity type touch panel which is arranged on a display surface side and in which an electrode pattern is hard to be visible from a front side to a degree of being unaware of its existence. <P>SOLUTION: The electrostatic capacity type touch panel is formed such that X electrodes (12) and Y electrodes (14), each having a certain shape and area, are arranged on the surface of a transparent substrate (11) as a transparent electrode pattern with a predetermined space between them when viewed from the front side. On the surface of the transparent substrate (11) corresponding to the space where the X electrodes (12) and the Y electrodes (14) are not seen when viewed from the front side of the transparent substrate (11), there is formed a dummy pattern (20) which is not electrically connected with the X electrodes (12) and the Y electrodes (14) and makes the space hard to be seen when viewed from the front side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、携帯電話機、携帯端末機あるいはパーソナルコンピュータ等の表示画面上に配置され、使用者が表示画面側を指やペン等で直接押してデータを入力する静電容量型タッチパネルに関するものである。   The present invention relates to a capacitive touch panel that is arranged on a display screen of a mobile phone, a mobile terminal, a personal computer, or the like, and allows a user to input data by directly pressing the display screen side with a finger or a pen.

近年、携帯電話機、携帯端末機あるいはパーソナルコンピュータ等の各種電子機器の高機能化あるいは多様化が進むに伴い、その電子機器の表示パネルの前面に光透過性のタッチパネルを装着し、このタッチパネルを通して背面側の表示パネルの表示を視認しながら、指あるいはペン等でタッチパネルの表面を押圧操作することにより、電子機器の各機能の切換操作を行うことができるものが使用されている。   In recent years, as various electronic devices such as mobile phones, portable terminals, and personal computers have become highly functional or diversified, a light transmissive touch panel is mounted on the front surface of the display panel of the electronic device, and the back surface is passed through this touch panel. A device that can perform switching operation of each function of the electronic device by pressing the surface of the touch panel with a finger or a pen while visually recognizing the display on the side display panel is used.

このようなタッチパネルとして、例えば、静電容量型タッチパネルにおいては、透明な基板に、Ｘ方向に所定形状の透明電極パターンを形成するとともに、Ｙ方向に同様の透明電極パターンが形成されたものが知られている。   As such a touch panel, for example, in a capacitive touch panel, a transparent substrate having a transparent electrode pattern having a predetermined shape in the X direction and a similar transparent electrode pattern formed in the Y direction is known on a transparent substrate. It has been.

図４及び図５は従来のタッチパネル構造を説明する図であり、図４は静電容量型タッチパネルの電極構成を説明する表面図、図５は静電容量型タッチパネルの電極パターン部分を説明する部分拡大図である。   4 and 5 are diagrams for explaining a conventional touch panel structure, FIG. 4 is a front view for explaining the electrode configuration of the capacitive touch panel, and FIG. 5 is a part for explaining an electrode pattern portion of the capacitive touch panel. It is an enlarged view.

従来の静電容量型タッチパネル１は、例えば、電子機器の表示装置の表示面上に配置されて使用されるものであり、透明な材料からなる基板２に透明な電極パターンが形成されたものが使用される。例えば、基板２は、可透性を有するガラス板等の透明基板からなり、表面に透明な材料からなるＸ電極３が形成され、またこのＸ電極３に直交する方向に同様に透明な材料からなるＹ電極４が形成されたものが知られている。また、この静電容量型タッチパネル１では、図４に示すように、Ｘ電極３は、基板の左右側に設けられる引き回し電極６，７に接続され、Ｙ電極４は、基板２の一方側の、例えば、上部側に形成された接続電極８側に接続されるようになっている。これらのＸ電極３及びＹ電極４は、それぞれ所定の電極パターンにより形成される。この静電容量型タッチパネル１において、Ｘ電極３は、例えば、図５の実線で示すように形成され、Ｙ電極４は、図５の点線で示すような形状に形成されている。また、一方のＸ電極３と、他方のＹ電極４とは、表面側から見たときにＸ電極接続領域３ａ及びＹ電極接続領域４ａが交差し、隣接するＸ電極３及びＹ電極４の間は、表面側から見たとき、一定の小さい間隔５を設けた形状に形成したものが一般的に知られている。   A conventional capacitive touch panel 1 is used, for example, by being placed on a display surface of a display device of an electronic device, and having a transparent electrode pattern formed on a substrate 2 made of a transparent material. used. For example, the substrate 2 is made of a transparent substrate such as a permeable glass plate, the surface is formed with an X electrode 3 made of a transparent material, and is similarly made of a transparent material in a direction perpendicular to the X electrode 3. A Y electrode 4 formed is known. In this capacitive touch panel 1, as shown in FIG. 4, the X electrode 3 is connected to the routing electrodes 6 and 7 provided on the left and right sides of the substrate, and the Y electrode 4 is connected to one side of the substrate 2. For example, it is connected to the connection electrode 8 formed on the upper side. These X electrode 3 and Y electrode 4 are each formed with a predetermined electrode pattern. In this capacitive touch panel 1, the X electrode 3 is formed, for example, as shown by a solid line in FIG. 5, and the Y electrode 4 is formed in a shape, as shown by a dotted line in FIG. In addition, when viewed from the surface side, one X electrode 3 and the other Y electrode 4 intersect with each other between the X electrode connection region 3a and the Y electrode connection region 4a, and between the adjacent X electrode 3 and Y electrode 4 Is generally known to be formed in a shape having a certain small interval 5 when viewed from the surface side.

すなわち、従来の静電容量型タッチパネル１が、表面側から見たとき、隣接するＸ電極３及びＹ電極４の間が、一定の小さい間隔５を設けた形状に形成されたものが知られている。このタッチパネル１の表面側から見たときのＸ電極３及びＹ電極４の間隔５は、例えば、２００μｍ程度に形成されているのが一般的であり、この間隔５が、タッチ性能に与える影響は全く生じることがない。しかしながら、従来のタッチパネル１の構造において、Ｘ電極３及びＹ電極４が透明電極から形成されているが、隣接するＸ電極３及びＹ電極４の間に小さい間隔５が形成されているため、表面側から見たときには、この間隔５のために、例えば、矩形状に形成されたＸ電極３及びＹ電極４の形状が見え易くなり、タッチ性能に与える電気的な影響は全く生じなくても、その表面側に見えるＸ電極３及びＹ電極４の形状が気になることがあった。   That is, it is known that the conventional capacitive touch panel 1 is formed in a shape in which a certain small interval 5 is provided between the adjacent X electrode 3 and Y electrode 4 when viewed from the surface side. Yes. The interval 5 between the X electrode 3 and the Y electrode 4 when viewed from the surface side of the touch panel 1 is generally formed to be about 200 μm, for example, and the influence of the interval 5 on the touch performance is It does not occur at all. However, in the structure of the conventional touch panel 1, the X electrode 3 and the Y electrode 4 are formed of transparent electrodes, but since a small gap 5 is formed between the adjacent X electrode 3 and Y electrode 4, When viewed from the side, for example, because of the interval 5, the shapes of the X electrode 3 and the Y electrode 4 formed in a rectangular shape can be easily seen, and even if there is no electrical influence on the touch performance, The shape of the X electrode 3 and the Y electrode 4 that can be seen on the surface side may be worrisome.

なお、光学特性や耐久性を有し、ハンディタイプの機器に適用できる薄型静電容量式タッチパネルに関する技術が知られている（特許文献１）。   In addition, the technique regarding the thin capacitive touch panel which has an optical characteristic and durability and can be applied to a handy type apparatus is known (patent document 1).

特開２００６−２３９０４号公報（第２〜３ページ、図１）Japanese Patent Laying-Open No. 2006-23904 (pages 2 and 3, FIG. 1)

本発明は、上記事情に鑑みなされたもので、携帯電話機あるいは携帯端末機等の表示パネルの表示面側に配置されるタッチパネルであって、表面側から電極パターンが気にならない程度に見え難くできる構造の静電容量型タッチパネルを提供することを目的とする。   The present invention has been made in view of the above circumstances, and is a touch panel disposed on the display surface side of a display panel such as a mobile phone or a mobile terminal, and can be hardly seen from the surface side to the extent that the electrode pattern is not a concern. An object of the present invention is to provide a capacitive touch panel having a structure.

上記目的を達成するために請求項１に記載の発明にあっては、透明基板の表面に透明な電極パターンとして一定の形状と面積を有するＸ電極及びY電極が、正面側から見たとき所定の間隔を設けて形成した静電容量型タッチパネルにおいて、前記透明基板の正面側から見たとき、前記Ｘ電極及びY電極が見えない前記間隔に相当する前記透明基板の表面には、前記Ｘ電極及びY電極と電気的に接続されないとともに、正面側から見たとき前記間隔を見え難くするダミーパターンが形成したことを特徴とするものである。   In order to achieve the above object, according to the first aspect of the present invention, the X electrode and the Y electrode having a certain shape and area as a transparent electrode pattern on the surface of the transparent substrate are predetermined when viewed from the front side. In the capacitance-type touch panel formed with an interval of, the X electrode and the Y electrode are not visible when viewed from the front side of the transparent substrate. In addition, a dummy pattern is formed which is not electrically connected to the Y electrode and makes it difficult to see the gap when viewed from the front side.

請求項２に記載の発明にあっては、前記ダミーパターンは、前記Ｘ電極及びY電極と同じ材料と膜厚から形成されていることを特徴とするものである。   The invention according to claim 2 is characterized in that the dummy pattern is formed of the same material and film thickness as the X electrode and the Y electrode.

請求項３に記載の発明にあっては、前記ダミーパターンは、前記Ｘ電極とＹ電極との間の間隔の表面側を覆う形状に形成された複数の第１のパターン、前記Ｘ電極とＹ電極とが交差する側の領域を覆う第２のパターン、及び前記Ｘ電極とＹ電極とが交差しない側の領域を覆う第３のパターンから形成されていることを特徴とするものである。   In the invention according to claim 3, the dummy pattern includes a plurality of first patterns formed in a shape covering the surface side of the space between the X electrode and the Y electrode, the X electrode and the Y electrode. It is characterized by being formed from a second pattern covering a region on the side where the electrode intersects and a third pattern covering a region on the side where the X electrode and the Y electrode do not intersect.

請求項４記載の発明にあっては、前記Ｘ電極及びY電極は、矩形状又は３角形に形成され、その電極の間が小さい領域のＸ電極接続領域及びＹ電極接続領域で接続された形状に形成されていることを特徴とするものである。   According to a fourth aspect of the present invention, the X electrode and the Y electrode are formed in a rectangular shape or a triangular shape, and a shape in which the electrodes are connected in a small region between the X electrode connection region and the Y electrode connection region. It is characterized by being formed.

透明基板の表面に透明な電極パターンとして一定の形状と面積を有するＸ電極及びY電極が、正面側から見たとき所定の間隔を設けて形成した静電容量型タッチパネルにおいて、透明基板の正面側から見たとき、Ｘ電極及びY電極が見えない間隔に相当する透明基板の表面には、Ｘ電極及びY電極と電気的に接続されないとともに、正面側から見たとき間隔を見え難くするダミーパターンが形成したことで、携帯電話機あるいは携帯端末機等の表示パネルの表示面側に配置されるタッチパネルであって、表面側から電極パターンが気にならない程度に見え難くできる。   In the capacitive touch panel in which X electrodes and Y electrodes having a certain shape and area as a transparent electrode pattern on the surface of the transparent substrate are formed with a predetermined interval when viewed from the front side, the front side of the transparent substrate A dummy pattern that is not electrically connected to the X electrode and the Y electrode on the surface of the transparent substrate corresponding to an interval at which the X electrode and the Y electrode cannot be seen when viewed from the front, and that makes the interval difficult to see when viewed from the front side As a result, the touch panel is disposed on the display surface side of a display panel of a mobile phone or a portable terminal, and the electrode pattern can be hardly seen from the surface side to the extent that it is not bothered.

以下、本発明を図示の一実施形態により具体的に説明する。図１は本発明実施形態のタッチパネルの表面側から透視したタッチ部分の第１の平面図、図２は本発明実施形態のタッチパネルの表面側から透視したタッチ部分の第２の平面図、図３は図１及び図２のタッチ部分を含むタッチパネルの平面図である。   Hereinafter, the present invention will be specifically described with reference to an illustrated embodiment. 1 is a first plan view of a touch part seen through from the surface side of the touch panel according to the embodiment of the present invention, FIG. 2 is a second plan view of the touch part seen through from the surface side of the touch panel according to the embodiment of the present invention, FIG. FIG. 3 is a plan view of a touch panel including the touch portion of FIGS. 1 and 2.

これらの図において、本実施形態における静電容量型タッチパネル１０は、従来と同様に表示装置の表示面の表面上に配置されて使用されるものであり、透明基板１１に、透明な電極パターンが形成されたものが使用される。この透明基板１１としては、例えば、可透性を有するガラスあるいはプラスチック等の材料からなる板材を使用することができ、この透明基板１１に、それぞれ透明な材料からなるＩＴＯ（Indium Tin Oxide）膜等で、所定の大きさの面積を有する矩形状に形成されたＸ電極１２（図において実線で記載）、及び同様に矩形状に形成されたY電極１4（図において点線で記載）が形成される。これらのＸ電極１２及びY電極１4は、所定の大きさの面積を有する形状に形成された、例えば、１００〜２５０オングストローム程度の膜厚に形成されている。これらのＸ電極１２及びY電極１4は、それぞれ同じ大きさの矩形状等に形成された部分が角部において電気的に接続された形状に形成されており、その接続部分においてＸ電極１２とY電極１4とが正面側から見たとき、図３に示すように、交差する部分（Ａ部分）と、交差しない部分（Ｂ部分）とを有する。   In these drawings, the capacitive touch panel 10 according to the present embodiment is arranged and used on the surface of the display surface of the display device as in the prior art, and the transparent substrate 11 has a transparent electrode pattern. The formed one is used. As the transparent substrate 11, for example, a plate made of a material such as glass or plastic having transparency can be used, and an ITO (Indium Tin Oxide) film made of a transparent material or the like is used for the transparent substrate 11. Thus, the X electrode 12 (shown by a solid line in the drawing) having a predetermined area and the Y electrode 14 (shown by a dotted line in the drawing) similarly formed in a rectangular shape are formed. . These X electrode 12 and Y electrode 14 are formed in a shape having an area of a predetermined size, for example, a film thickness of about 100 to 250 angstroms. Each of these X electrode 12 and Y electrode 14 is formed in a shape in which a portion formed in a rectangular shape or the like having the same size is electrically connected at a corner portion. When the electrode 14 is viewed from the front side, as shown in FIG. 3, it has a crossing portion (A portion) and a non-crossing portion (B portion).

さらに、詳細に説明すると、図１及び図２に示すように、Ｘ電極１２とＹ電極１４とが交差する部分と交差しない部分とで異なる形状に形成されている。すなわち、図１に示すように、実線で記載した矩形状に形成されたＸ電極１２がその角部をＸ電極接続領域１３で接続した形状でＸ軸方向に沿って形成され、同様に点線で記載した矩形状に形成されたＹ電極１４がその角部をＹ電極接続領域１５で接続した形状でＹ軸方向に沿って形成されている。したがって、静電容量型タッチパネル１０を正面側から見たとき、Ｘ電極接続領域１３とＹ電極接続領域１５とが交差し、かつ隣接するＸ電極１２とＹ電極１４との間は、一定の間隔１６が形成されている。この間隔１６は、例えば、２００μｍ程度の大きさに形成されている。Ｘ電極接続領域１３は、例えば、幅（ａ）が２００μｍ、長さ（ｂ）が４８０μｍ程度の大きさに形成され、また、Ｙ電極接続領域１５も正面側から見たときＸ電極接続領域１３の交差するように同様の大きさに形成されている。また、図２に示すように、Ｘ電極１２とＹ電極１４とが交差しない部分においては、それぞれのＸ電極１２とＹ電極１４の角部が一定の間隔１６が形成されている。隣接するＸ電極１２とＹ電極１４との間の間隔１６は、正面側から見たときに一定の、例えば、２００μｍ程度の大きさに形成されている。すなわち、正面側から見たとき、Ｘ電極１２とＹ電極１４とが交差する領域は、それぞれＸ電極接続領域１３とＹ電極接続領域１５とが表面側から見たとき交差するよう形成され、Ｘ電極接続領域１３とＹ電極接続領域１５とが交差しない領域は一定の間隔１６で離れた形状に形成されている。   More specifically, as shown in FIGS. 1 and 2, the X electrode 12 and the Y electrode 14 are formed in different shapes at a portion where it intersects and a portion where it does not intersect. That is, as shown in FIG. 1, the X electrode 12 formed in a rectangular shape indicated by a solid line is formed along the X-axis direction in a shape in which the corners are connected by the X electrode connection region 13, and similarly in the dotted line. The described Y-shaped electrode 14 formed in a rectangular shape is formed along the Y-axis direction in a shape in which the corners are connected by the Y-electrode connection region 15. Therefore, when the capacitive touch panel 10 is viewed from the front side, the X electrode connection region 13 and the Y electrode connection region 15 intersect, and the adjacent X electrode 12 and Y electrode 14 have a certain distance. 16 is formed. The interval 16 is formed in a size of about 200 μm, for example. The X electrode connection region 13 is formed to have a width (a) of about 200 μm and a length (b) of about 480 μm, for example, and the Y electrode connection region 15 is also viewed from the front side. The same size is formed so as to intersect. Further, as shown in FIG. 2, in a portion where the X electrode 12 and the Y electrode 14 do not intersect, the corner portions of the X electrode 12 and the Y electrode 14 are formed with a constant interval 16. The space 16 between the adjacent X electrode 12 and Y electrode 14 is formed to have a constant size, for example, about 200 μm when viewed from the front side. That is, the region where the X electrode 12 and the Y electrode 14 intersect when viewed from the front side is formed so that the X electrode connection region 13 and the Y electrode connection region 15 intersect when viewed from the surface side, respectively. A region where the electrode connection region 13 and the Y electrode connection region 15 do not intersect with each other is formed in a shape separated by a constant interval 16.

Ｘ電極１２とＹ電極１４との間の一定の間隔１６には、その間隔１６を見え難くする本発明実施形態のダミーパターン２０が形成されている。このダミーパターン２０は、透明基板１１の正面側から見たとき、Ｘ電極１２とＹ電極１４との間に形成される間隔１６が見え難くなるように、その間隔１６を覆う透明なＩＴＯ膜から形成され、かつ、それぞれのＸ電極１２とＹ電極１４と電気的な接続がないように形成されている。本実施形態におけるダミーパターン２０は、Ｘ電極１２及びY電極１4と同じ程度の膜厚に形成されたＩＴＯ膜で形成されたものが使用される。ダミーパターン２０の形状は、表面側から見たとき、それぞれのＸ電極１２、Ｙ電極１４及びＸ電極接続領域１３、Ｙ電極接続領域１５が形成されていない領域を覆うとともに、それぞれのＸ電極１２、Ｙ電極１４及びＸ電極接続領域１３、Ｙ電極接続領域１５との間が電気的に接続されない狭い間隔になる形状に形成されている。このダミーパターン２０の例としては、Ｘ電極１２とＹ電極１４との間の間隔１６の表面側を覆う形状に形成された複数の第１のパターン２１，２２、Ｘ電極接続領域１３及びＹ電極接続領域１５側に近い領域の間隔１６の表面側を覆う第２のパターン２１ａ，２２ａ、及びＸ電極１２とＹ電極１４とが交差しない部分の領域を覆う小さい矩形状に形成された第３のパターン２１ｂ，２２ｂから形成されている。すなわち、ダミーパターン２０は、正面側から見たときに、Ｘ電極１２、Ｙ電極１４、Ｘ電極接続領域１３、Ｙ電極接続領域１５が形成されていない間隔１６を覆うように、それぞれの電極又は電極領域に電気的に接続されないように形成されたものである。このようなダミーパターン２０は、例えば、２００μｍ程度に形成された間隔１６に、５５μｍ程度の幅に形成された第１のパターン２１，２２が、それぞれＸ電極１２、Ｙ電極１４の間隔１６に、３０μｍ程度の間隔を隔てて設けられている。他の第２のパターン２１ａ，２２ａ及び第３のパターン２１ｂ，２２ｂもそれぞれ同様な３０μｍ程度の間隔になるように形成されている。   In the constant interval 16 between the X electrode 12 and the Y electrode 14, a dummy pattern 20 according to the embodiment of the present invention that makes the interval 16 difficult to see is formed. The dummy pattern 20 is formed from a transparent ITO film covering the interval 16 so that the interval 16 formed between the X electrode 12 and the Y electrode 14 is difficult to see when viewed from the front side of the transparent substrate 11. The X electrodes 12 and the Y electrodes 14 are formed so as not to be electrically connected. As the dummy pattern 20 in this embodiment, a pattern formed of an ITO film formed to have the same thickness as the X electrode 12 and the Y electrode 14 is used. The shape of the dummy pattern 20 covers the region where the X electrode 12, the Y electrode 14, the X electrode connection region 13, and the Y electrode connection region 15 are not formed, as viewed from the front side. , The Y electrode 14, the X electrode connection region 13, and the Y electrode connection region 15 are formed in a shape having a narrow interval that is not electrically connected. As an example of the dummy pattern 20, a plurality of first patterns 21 and 22 formed to cover the surface side of the space 16 between the X electrode 12 and the Y electrode 14, the X electrode connection region 13, and the Y electrode A second pattern 21a, 22a covering the surface side of the space 16 in the region close to the connection region 15 side, and a third rectangle formed in a small rectangular shape covering the region where the X electrode 12 and the Y electrode 14 do not intersect. It is formed from patterns 21b and 22b. That is, when viewed from the front side, the dummy pattern 20 covers each electrode or the X electrode 12, the Y electrode 14, the X electrode connection region 13, and the electrode 16 so as to cover the interval 16 where the Y electrode connection region 15 is not formed. It is formed so as not to be electrically connected to the electrode region. Such a dummy pattern 20 has, for example, an interval 16 formed to about 200 μm and first patterns 21 and 22 formed to a width of about 55 μm to the interval 16 between the X electrode 12 and the Y electrode 14, respectively. They are provided with an interval of about 30 μm. The other second patterns 21a and 22a and the third patterns 21b and 22b are also formed to have a similar interval of about 30 μm.

上記の構成の静電容量型タッチパネル１０では、正面側から見たとき、Ｘ電極１２、Ｙ電極１４の間の間隔１６が、それぞれの電極と電気的に接続されていない複数の第１のパターン２１，２２、第２のパターン２１ａ，２２ａ、及び第３のパターン２１ｂ，２２ｂで覆われているため、その間隔１６の存在が表面側から電極パターンが気にならない程度に見え難くなる。したがって、従来のタッチパネルの構造においては、表面側から見たときには、Ｘ電極１２及びＹ電極１４間の間隔１６のために、それぞれの電極が表面側から見えて気になることがあったが、その間隔１６の間にそれぞれのＸ電極１２及びＹ電極１４と同じ厚さと材料からなる電気的な接続のないダミーパターン２０で覆われているため、その間隔１６の存在が気にならない程度に見え難くなる。   In the capacitive touch panel 10 having the above-described configuration, when viewed from the front side, the interval 16 between the X electrode 12 and the Y electrode 14 is a plurality of first patterns that are not electrically connected to the respective electrodes. 21 and 22, the second patterns 21 a and 22 a, and the third patterns 21 b and 22 b, the presence of the interval 16 is hardly visible from the surface side to the extent that the electrode pattern is not bothered. Therefore, in the structure of the conventional touch panel, when viewed from the front surface side, each electrode may be seen from the front surface side due to the interval 16 between the X electrode 12 and the Y electrode 14, Since the gap 16 is covered with a dummy pattern 20 made of the same thickness and material as the respective X electrode 12 and Y electrode 14 and having no electrical connection, the presence of the gap 16 seems to be unnoticeable. It becomes difficult.

なお、上記の実施形態において、矩形状に形成されたＸ電極１２及びＹ電極１４を例に説明したが、この電極形状については、任意にでき実施形態に限定されない。また、Ｘ電極１２及びＹ電極１４の間隔１６や形状は任意にでき、少なくとも表面側から見たときにＸ電極及びＹ電極の間に形成される間隔を同じ材料の透明材料で電気的に接続されないパターンで覆うように形成することができる。さらに、間隔１６の大きさや形状に関しては、Ｘ電極１２及びＹ電極１４の形状に応じて任意にでき、実施形態に限定されない。   In the above embodiment, the X electrode 12 and the Y electrode 14 formed in a rectangular shape have been described as examples. However, the electrode shape can be arbitrarily set and is not limited to the embodiment. Further, the interval 16 and the shape of the X electrode 12 and the Y electrode 14 can be arbitrarily set, and at least when viewed from the surface side, the interval formed between the X electrode and the Y electrode is electrically connected with the same transparent material. It can be formed so as to be covered with a pattern that is not performed. Furthermore, the size and shape of the interval 16 can be arbitrarily set according to the shapes of the X electrode 12 and the Y electrode 14 and are not limited to the embodiment.

携帯電話機、携帯端末機あるいはパーソナルコンピュータ等の表示面上に配置され、使用者が表示画面を指やペン等で直接押してデータを入力する静電容量型タッチパネルに利用することができる。   It is arranged on a display surface of a mobile phone, a mobile terminal, a personal computer, or the like, and can be used for a capacitive touch panel in which a user inputs data by directly pressing the display screen with a finger or a pen.

本発明実施形態のタッチパネルの表面側から透視したタッチ部分の第１の平面図である。It is the 1st top view of the touch part seen through from the surface side of the touch panel of the embodiment of the present invention. 本発明実施形態のタッチパネルの表面側から透視したタッチ部分の第２の平面図である。It is the 2nd top view of the touch part seen through from the surface side of the touch panel of the embodiment of the present invention. 本発明実施形態のタッチ部分を含むタッチパネルの平面図である。It is a top view of the touch panel containing the touch part of embodiment of this invention. 従来の静電容量型タッチパネルの電極構成を説明する表面図である。It is a surface figure explaining the electrode structure of the conventional electrostatic capacitance type touch panel. 従来の静電容量型タッチパネルの電極パターン部分を説明する部分拡大図である。It is the elements on larger scale explaining the electrode pattern part of the conventional electrostatic capacitance type touch panel.

符号の説明Explanation of symbols

１ 静電容量型タッチパネル
２ 基板
３ Ｘ電極
３ａ Ｘ電極接続領域
４ Ｙ電極
４ａ Ｙ電極接続領域
５ 間隔
６，７ 引き回し電極
８ 接続電極
１０ 静電容量型タッチパネル
１１ 透明基板
１２ Ｘ電極
１３ Ｘ電極接続領域
１４ Y電極
１５ Ｙ電極接続領域
１６ 間隔
２０ ダミーパターン
２１，２２ 第１のパターン
２１ａ，２２ａ 第２のパターン
２１ｂ，２２ｂ 第３のパターン DESCRIPTION OF SYMBOLS 1 Capacitance type touch panel 2 Board | substrate 3 X electrode 3a X electrode connection area | region 4 Y electrode 4a Y electrode connection area | region 5 Space | interval 6,7 Lead-out electrode 8 Connection electrode 10 Capacitive type touch panel 11 Transparent substrate 12 X electrode 13 X electrode connection Region 14 Y electrode 15 Y electrode connection region 16 Interval 20 Dummy pattern 21, 22 First pattern 21 a, 22 a Second pattern 21 b, 22 b Third pattern

Claims (4)

透明基板の表面に透明な電極パターンとして一定の形状と面積を有するＸ電極及びY電極が、正面側から見たとき所定の間隔を設けて形成した静電容量型タッチパネルにおいて、
前記透明基板の正面側から見たとき、前記Ｘ電極及びY電極が見えない前記間隔に相当する前記透明基板の表面には、前記Ｘ電極及びY電極と電気的に接続されないとともに、正面側から見たとき前記間隔を見え難くするダミーパターンが形成したことを特徴とする静電容量型タッチパネル。 In the capacitive touch panel formed with X electrodes and Y electrodes having a certain shape and area as a transparent electrode pattern on the surface of the transparent substrate with a predetermined interval when viewed from the front side,
When viewed from the front side of the transparent substrate, the surface of the transparent substrate corresponding to the interval where the X and Y electrodes are not visible is not electrically connected to the X and Y electrodes, and from the front side. A capacitance-type touch panel, wherein a dummy pattern that makes the interval difficult to see when viewed is formed. 前記ダミーパターンは、前記Ｘ電極及びY電極と同じ材料と膜厚から形成されていることを特徴とする請求項１記載の静電容量型タッチパネル。   The capacitive touch panel according to claim 1, wherein the dummy pattern is formed of the same material and film thickness as the X electrode and the Y electrode. 前記ダミーパターンは、前記Ｘ電極とＹ電極との間の間隔の表面側を覆う形状に形成された複数の第１のパターン、前記Ｘ電極とＹ電極とが交差する側の領域を覆う第２のパターン、及び前記Ｘ電極とＹ電極とが交差しない側の領域を覆う第３のパターンから形成されていることを特徴とする請求項１記載の静電容量型タッチパネル。   The dummy pattern includes a plurality of first patterns formed in a shape covering the surface side of the space between the X electrode and the Y electrode, and a second region covering a region on the side where the X electrode and the Y electrode intersect. 2. The capacitive touch panel according to claim 1, wherein the capacitive touch panel is formed of a third pattern that covers a region where the X electrode and the Y electrode do not cross each other. 前記Ｘ電極及びY電極は、矩形状又は３角形に形成され、その電極の間が小さい領域のＸ電極接続領域及びＹ電極接続領域で接続された形状に形成されていることを特徴とする請求項１記載の静電容量型タッチパネル。   The X electrode and the Y electrode are formed in a rectangular shape or a triangular shape, and the electrodes are formed in a shape connected between the X electrode connection region and the Y electrode connection region in a small region. Item 10. A capacitive touch panel according to Item 1.
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