JP2000207983A - Touch panel - Google Patents
Touch panelInfo
- Publication number
- JP2000207983A JP2000207983A JP514399A JP514399A JP2000207983A JP 2000207983 A JP2000207983 A JP 2000207983A JP 514399 A JP514399 A JP 514399A JP 514399 A JP514399 A JP 514399A JP 2000207983 A JP2000207983 A JP 2000207983A
- Authority
- JP
- Japan
- Prior art keywords
- transparent
- electrode sheet
- lower electrode
- holding plate
- touch panel
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術の分野】本発明は、ＬＣＤ（液晶デ
ィスプレイ）やＣＲＴ（ブラウン管）などの画面上に配
置し、透視した画面の指示にしたがって指やペンなどで
上から押圧することにより位置入力が行えるタッチパネ
ルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inputting a position on a screen such as an LCD (Liquid Crystal Display) or a CRT (CRT) by pressing the screen from above with a finger or a pen in accordance with an instruction on a transparent screen. The present invention relates to a touch panel capable of performing the following.
【０００２】[0002]
【従来の技術】従来より、抵抗膜方式の透明なタッチパ
ネルとしては、透明フィルム上にＩＴＯ等からなる透明
電極を有する一対の上部電極シート１と下部電極シート
２とが電極間に絶縁物よりなるスペーサー３を介して対
向配置され、下部電極シート２の下面に樹脂よりなる透
明保持板５が透明接着層４を介して全面的に接着された
ものがある（図２参照）。2. Description of the Related Art Conventionally, as a transparent touch panel of the resistive film type, a pair of an upper electrode sheet 1 and a lower electrode sheet 2 having a transparent electrode made of ITO or the like on a transparent film is made of an insulator between the electrodes. There is a case where a transparent holding plate 5 made of resin is entirely adhered to the lower surface of the lower electrode sheet 2 via a transparent adhesive layer 4 (see FIG. 2).
【０００３】上部電極シート１および下部電極シート２
の透明フィルムとしては、入力のための可撓性に優れ
た、厚み１００〜２００μｍのポリエチレンテレフタレ
ートフィルムが用いられ、通常、二軸延伸されている。
また、透明保持板５としては、入力の押圧からＬＣＤ等
の画面を保護するための剛性に優れた厚み０．５〜３．
０ｍｍのポリカーボネート板や、このポリカーボネート
板の下面に低反射処理を施したものが用いられ、通常、
未延伸である。[0003] Upper electrode sheet 1 and lower electrode sheet 2
As the transparent film, a polyethylene terephthalate film having excellent flexibility for input and having a thickness of 100 to 200 μm is used, and is usually biaxially stretched.
In addition, the transparent holding plate 5 has a thickness of 0.5 to 3 which is excellent in rigidity for protecting a screen such as an LCD from input pressure.
A 0 mm polycarbonate plate or a plate obtained by subjecting a lower surface of the polycarbonate plate to a low reflection treatment is used.
Not stretched.
【０００４】[0004]
【発明が解決しようとする課題】しかし、下部電極シー
ト２の透明フィルムに用いるポリエチレンテレフタレー
トフィルムと透明保持板５に用いるポリカーボネート板
とは膨張係数の違い、さらには延伸の有無の違いなどが
ある。しかも下部電極シート２の透明フィルムと透明保
持板５とは、全面的に接着されている。そのため、タッ
チパネルが厳しい温度環境や湿度環境に曝されたとき
に、透明保持板の下部電極シート側とその反対側とでは
寸法変化に差ができ、タッチパネルの中央部分が上に出
っ張るように反りが発生することがあった（図３参
照）。この反りは、タッチパネルとその下の画面との間
に空気層を形成することになり、入力時にタッチパネル
全体に余計な撓みを生じさせて操作感触を鈍らせる。However, the polyethylene terephthalate film used for the transparent film of the lower electrode sheet 2 and the polycarbonate plate used for the transparent holding plate 5 have a difference in expansion coefficient and a difference in the presence or absence of stretching. In addition, the transparent film of the lower electrode sheet 2 and the transparent holding plate 5 are entirely bonded. Therefore, when the touch panel is exposed to severe temperature or humidity environment, there is a difference in dimensional change between the lower electrode sheet side of the transparent holding plate and the opposite side, and the central part of the touch panel warps so as to protrude upward. (See FIG. 3). This warp causes an air layer to be formed between the touch panel and the screen below the touch panel, causing extra flexure in the entire touch panel at the time of input, thereby dulling the operation feeling.
【０００５】ＬＣＤやＣＲＴなどの画面上に設置する際
にこの反りを強制的にフラットにすることもできるが、
そうすると下部電極シート２の透明フィルムに波打ちが
発生するため、タッチパネルの見映えおよび画面の視認
性が悪くなる。また、下部電極シート２の透明フィルム
に波打ちが発生すると電極間のギャップにムラができ、
結果、場所によりタッチパネルの入力感が異なってく
る。さらに波打ちがひどい場合には、電極が接触するの
で絶縁不良が起こることもある。[0005] This warpage can be forcibly made flat when it is installed on a screen such as an LCD or CRT.
Then, since the transparent film of the lower electrode sheet 2 is wavy, the appearance of the touch panel and the visibility of the screen are deteriorated. Further, when the transparent film of the lower electrode sheet 2 is wavy, the gap between the electrodes becomes uneven,
As a result, the input feeling of the touch panel differs depending on the location. Further, when the undulation is severe, the electrodes may come into contact with each other, resulting in poor insulation.
【０００６】したがって、本発明の目的は、入力のため
の可撓性および入力の押圧からＬＣＤ等の画面を保護す
るための剛性に優れたタッチパネルにおいて、上記の問
題を解決し、厳しい温度環境や湿度環境に曝されても反
りがほとんど発生しないタッチパネルを提供することに
ある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems in a touch panel excellent in flexibility for input and rigidity for protecting a screen such as an LCD from pressing of the input, to solve the above-mentioned problems. An object of the present invention is to provide a touch panel that hardly warps even when exposed to a humidity environment.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係るタッチパネルは、ポリエチレンテレフ
タレートからなる透明フィルム上に透明電極を有する一
対の上部電極シートおよび下部電極シートとが電極間に
絶縁物よりなるスペーサーを介して対向配置され、下部
電極シートの下面にポリカーボネート板からなる透明保
持板が透明接着層を介して全面的に接着され、さらに透
明保持板の下面にポリエチレンテレフタレートフィルム
からなる透明反り矯正シートが透明接着層を介して全面
的に接着されているように構成した。In order to achieve the above object, a touch panel according to the present invention comprises a pair of upper and lower electrode sheets each having a transparent electrode on a transparent film made of polyethylene terephthalate. A transparent holding plate made of a polycarbonate plate is entirely adhered to the lower surface of the lower electrode sheet via a transparent adhesive layer, and is further made of a polyethylene terephthalate film on the lower surface of the transparent holding plate. It was configured such that the transparent warp correcting sheet was entirely adhered via the transparent adhesive layer.
【０００８】[0008]
【発明の実施の形態】図１は本発明のタッチパネルの基
本構成を示すものであり、透明フィルム上に透明電極を
有する一対の上部電極シート１および下部電極シート２
とが電極間に絶縁物よりなるスペーサー３を介して対向
配置され、下部電極シート２の下面に透明保持板５が透
明接着層４を介して全面的に接着されている。本発明の
特徴は、透明保持板５の下面にさらに透明反り矯正シー
ト６が透明接着層４を介して全面的に接着されているこ
とにある。FIG. 1 shows a basic structure of a touch panel according to the present invention. A pair of an upper electrode sheet 1 and a lower electrode sheet 2 each having a transparent electrode on a transparent film are shown.
Are disposed between the electrodes with a spacer 3 made of an insulator therebetween, and a transparent holding plate 5 is entirely adhered to the lower surface of the lower electrode sheet 2 via a transparent adhesive layer 4. A feature of the present invention resides in that a transparent warp correcting sheet 6 is further entirely adhered to the lower surface of the transparent holding plate 5 via the transparent adhesive layer 4.
【０００９】上部電極シート１および下部電極シート２
の透明フィルムとしては、入力のための可撓性に優れた
厚み１００〜２００μｍのポリエチレンテレフタレート
フィルムを用いる。また、上部電極シート１の透明電極
を有する面と反対の面には、アクリルエポキシ系、ウレ
タン系の熱硬化型樹脂やアクリレート系の光硬化型樹脂
などからなるハードコート層が設けられていてもよい。
なお、上部電極シート１および下部電極シート２の透明
フィルムは、ロール状のフィルム原反に透明電極を連続
して形成した後、上部電極シート１および下部電極シー
ト２の寸法に切断して得るのが好ましい。Upper electrode sheet 1 and lower electrode sheet 2
As a transparent film, a polyethylene terephthalate film having excellent thickness for input and having a thickness of 100 to 200 μm is used. Also, a hard coat layer made of an acrylic epoxy-based, urethane-based thermosetting resin, an acrylate-based photocurable resin, or the like is provided on the surface of the upper electrode sheet 1 opposite to the surface having the transparent electrodes. Good.
The transparent films of the upper electrode sheet 1 and the lower electrode sheet 2 are obtained by forming transparent electrodes continuously on a roll-shaped film raw material and then cutting the transparent electrodes into the dimensions of the upper electrode sheet 1 and the lower electrode sheet 2. Is preferred.
【００１０】上部電極シート１と下部電極シート２の対
向する面にそれぞれ設けられる透明電極としては、透明
性および導電性を有する金属膜や金属酸化物膜を真空蒸
着、スパッタリング、イオンプレーティングなどの方法
にて形成する。たとえば、ＩＴＯ、酸化錫、酸化インジ
ウム、酸化アンチモン、酸化亜鉛、酸化カドミウムなど
の金属酸化物膜、これらの金属酸化物を主体とする複合
膜、金、銀、銅、錫、ニッケル、アルミニウム、パラジ
ウムなどの金属膜がある。透明電極の厚さは、一般に１
００〜１０００Åである。As the transparent electrodes provided on the opposing surfaces of the upper electrode sheet 1 and the lower electrode sheet 2, a transparent and conductive metal film or metal oxide film is formed by vacuum deposition, sputtering, ion plating, or the like. It is formed by a method. For example, metal oxide films such as ITO, tin oxide, indium oxide, antimony oxide, zinc oxide, and cadmium oxide; composite films mainly containing these metal oxides; gold, silver, copper, tin, nickel, aluminum, and palladium And the like. The thickness of the transparent electrode is generally 1
00 to 1000 °.
【００１１】スペーサー３は、上部電極シート１または
下部電極シート２のいずれかの透明電極表面に任意の形
状で形成される。スペーサー３の形成方法としては、メ
ラミンアクリレート樹脂、ウレタンアクリレート樹脂、
エポキシアクリレート樹脂、メタアクリルアクリレート
樹脂、アクリルアクリレート樹脂などのアクリレート樹
脂、ポリビニールアルコール樹脂などの透明な光硬化型
樹脂を用いたフォトプロセスがある。また、ウレタン系
透明樹脂などを用い印刷法にてスペーサー３を形成する
こともできる。スペーサー３は、一般に直径３０〜１０
０μｍ、高さ１〜１５μｍのドット状に形成され、０．
１ｍｍ〜１０ｍｍの一定の間隔で配列される。The spacer 3 is formed in an arbitrary shape on the surface of the transparent electrode of either the upper electrode sheet 1 or the lower electrode sheet 2. As a method for forming the spacer 3, a melamine acrylate resin, a urethane acrylate resin,
There is a photo process using an acrylate resin such as an epoxy acrylate resin, a methacryl acrylate resin, and an acrylic acrylate resin, and a transparent photocurable resin such as a polyvinyl alcohol resin. Further, the spacer 3 can be formed by a printing method using a urethane-based transparent resin or the like. The spacer 3 generally has a diameter of 30 to 10
It is formed in a dot shape of 0 μm and a height of 1 to 15 μm.
They are arranged at regular intervals of 1 mm to 10 mm.
【００１２】透明保持板５としては、入力の押圧からＬ
ＣＤ等の画面を保護するための剛性に優れた、０．５〜
３．０ｍｍのポリカーボネート板を用いる。As for the transparent holding plate 5, L
Excellent rigidity for protecting screens such as CDs, 0.5-
A 3.0 mm polycarbonate plate is used.
【００１３】上部電極シート１と下部電極シート２とが
表示面の領域外において接着剤や両面テープなどによっ
て接着されているのに対し、下部電極シート２と透明保
持板５とは全面的に透明接着層４を介して接着されてい
る。下部電極シート２と透明保持板５との間に空気層が
存在しないので、入力時に上部電極シート１に余計な撓
みを生じて操作感触を鈍らせることもなく、また空気層
との境界における光の減衰も起きない。透明接着層４に
は、下部電極シート２と透明保持板５との全面接着に一
般に使用されているアクリル系接着剤などの透明な接着
剤を用いることができ、下部電極シート２の透明フィル
ムおよび透明保持板５と屈折率の近似したものを用いる
のがより好ましい。なお、透明接着層４の形成は、接着
剤を下部電極シート２または透明保持板５に直接塗布し
てもよいし、あらかじめ接着剤を薄い透明支持フィルム
の両面に塗布してなる両面接着フィルムをつくり下部電
極シート２または透明保持板５に貼りあわせてもよい。While the upper electrode sheet 1 and the lower electrode sheet 2 are adhered by an adhesive or a double-sided tape outside the display surface area, the lower electrode sheet 2 and the transparent holding plate 5 are entirely transparent. It is adhered via the adhesive layer 4. Since there is no air layer between the lower electrode sheet 2 and the transparent holding plate 5, the upper electrode sheet 1 does not bend excessively at the time of input, so that the operation feeling is not dulled, and light at the boundary with the air layer is not generated. Does not occur. The transparent adhesive layer 4 may be made of a transparent adhesive such as an acrylic adhesive that is generally used for bonding the lower electrode sheet 2 and the transparent holding plate 5 over the entire surface. It is more preferable to use a material having a refractive index similar to that of the transparent holding plate 5. The transparent adhesive layer 4 may be formed by applying an adhesive directly to the lower electrode sheet 2 or the transparent holding plate 5 or by applying a double-sided adhesive film in which an adhesive is applied to both surfaces of a thin transparent support film in advance. It may be bonded to the lower electrode sheet 2 or the transparent holding plate 5.
【００１４】透明反り矯正シート６としては、厚み５０
〜２００μｍのポリエチレンテレフタレートフィルムを
用いる。このフィルムは、下部電極シート２の透明フィ
ルムと同じポリエチレンテレフタレートからなるので、
タッチパネルが厳しい温度環境や湿度環境に曝されたと
きでも、透明保持板５の下部電極シート２側と透明反り
矯正シート６側とで寸法変化にほとんど差がなく、タッ
チパネルに反りがほとんど発生しない。また、透明反り
矯正シート６の下面には、低反射処理が施されていても
よい。低反射処理にはフッ素樹脂やシリコン樹脂などの
低屈折率樹脂を用いた低反射材料を塗布したり、金属の
多層膜を形成したりするなどの処理がある。透明反り矯
正シート６と透明保持板５とを接着する透明接着層４に
は、前記の下部電極シート２と透明保持板５との接着と
同様の接着剤を用いる。なお、透明接着層４の形成は、
接着剤を透明反り矯正シート６または透明保持板５に直
接塗布してもよいし、あらかじめ接着剤を薄い透明支持
フィルムの両面に塗布してなる両面接着フィルムをつく
り透明反り矯正シート６または透明保持板５に貼りあわ
せてもよい。The transparent warp correcting sheet 6 has a thickness of 50
A polyethylene terephthalate film of up to 200 μm is used. Since this film is made of the same polyethylene terephthalate as the transparent film of the lower electrode sheet 2,
Even when the touch panel is exposed to severe temperature and humidity environments, there is almost no difference in dimensional change between the lower electrode sheet 2 side of the transparent holding plate 5 and the transparent warp correction sheet 6 side, and the touch panel hardly warps. Further, the lower surface of the transparent warp correction sheet 6 may be subjected to a low reflection treatment. The low-reflection processing includes processing such as applying a low-reflection material using a low-refractive-index resin such as a fluorine resin or a silicon resin, or forming a metal multilayer film. For the transparent adhesive layer 4 for bonding the transparent warp correcting sheet 6 and the transparent holding plate 5, the same adhesive as used for bonding the lower electrode sheet 2 and the transparent holding plate 5 is used. In addition, the formation of the transparent adhesive layer 4
The adhesive may be applied directly to the transparent warp correcting sheet 6 or the transparent holding plate 5, or a double-sided adhesive film formed by applying an adhesive to both sides of a thin transparent support film in advance may be used. It may be attached to the plate 5.
【００１５】[0015]
【実施例】厚さ２００μｍのロール状のポリエチレンテ
レフタレートフィルムの片面にスパッタリング法によっ
て厚さ２００ÅのＩＴＯ等からなる透明電極を設けた
後、縦１４２ｍｍ、横７８ｍｍの長方形に切り取って上
部電極シートを作製した。EXAMPLE A 200 μm thick transparent electrode made of ITO or the like was provided on one side of a roll-shaped polyethylene terephthalate film having a thickness of 200 μm by a sputtering method, and then cut into a rectangle having a length of 142 mm and a width of 78 mm to form an upper electrode sheet. did.
【００１６】また、厚さ２００μｍのロール状のポリエ
チレンテレフタレートフィルムの片面にスパッタリング
法によって厚さ２００ÅのＩＴＯ等からなる透明電極を
設けた後、縦１４２ｍｍ、横７８ｍｍの長方形に切り取
って下部電極シートを作製した。また、下部電極シート
の透明電極上にウレタン系透明樹脂をドット状に印刷し
て、直径５０μｍ、高さ１０μｍのスペーサーを１ｍｍ
の間隔で配列させた。A 200 μm-thick roll of polyethylene terephthalate film is provided on one side with a transparent electrode made of ITO or the like having a thickness of 200 ° by sputtering, and then cut into a rectangle 142 mm long and 78 mm wide to form a lower electrode sheet. Produced. In addition, a urethane-based transparent resin is printed on the transparent electrode of the lower electrode sheet in a dot shape, and a spacer having a diameter of 50 μm and a height of 10 μm is formed by 1 mm.
Were arranged at intervals.
【００１７】この上部電極シートと下部電極シートと
を、電極面を対向させ、表示面の領域外において厚さ２
０μｍ、幅５ｍｍのアクリル系接着剤で接着した。The upper electrode sheet and the lower electrode sheet are opposed to each other with the electrode surfaces facing each other, and have a thickness of 2 outside the area of the display surface.
Bonded with an acrylic adhesive having a thickness of 0 μm and a width of 5 mm.
【００１８】一方、縦１４２ｍｍ、横７８ｍｍ、厚さ７
５ｍｍのポリエチレンテレフタレートフィルムからなる
透明反り矯正シートの片面に、金属多層膜を形成するこ
とにより低反射処理を施した。On the other hand, the height 142 mm, width 78 mm, thickness 7
A low-reflection treatment was performed by forming a metal multilayer film on one surface of a transparent warpage correcting sheet made of a 5 mm polyethylene terephthalate film.
【００１９】次に、縦１４２ｍｍ、横７８ｍｍ、厚さ
１．５ｍｍのポリカーボネート板からなる透明保持板の
片面にアクリル系接着剤からなる透明接着層を塗布形成
し、透明反り矯正シートを貼りあわせた。次いで、透明
保持板の透明反り矯正シートを貼りあわせた面と反対の
面に、アクリル系接着剤からなる透明接着層を塗布形成
し、下部電極シートの下面に貼りあわせてタッチパネル
を得た。Next, a transparent adhesive layer made of an acrylic adhesive was applied to one surface of a transparent holding plate made of a polycarbonate plate having a length of 142 mm, a width of 78 mm and a thickness of 1.5 mm, and a transparent warp correcting sheet was attached. . Next, a transparent adhesive layer made of an acrylic adhesive was applied and formed on the surface of the transparent holding plate opposite to the surface on which the transparent warp correcting sheet was bonded, and then bonded to the lower surface of the lower electrode sheet to obtain a touch panel.
【００２０】このようなタッチパネルについて温度６０
℃、湿度９０％ＲＨの環境下に２４０時間放置し、さら
に室温で２４時間放置した後に反りを測定したところ、
タッチパネルに中央部分が上に僅かに０．５ｍｍ出っ張
っただけで、ほとんど反りが発生しなかった。For such a touch panel, a temperature of 60
When left for 240 hours in an environment of 90 ° C. and 90% RH and further left for 24 hours at room temperature, the warpage was measured.
The center portion of the touch panel protruded slightly upward by 0.5 mm, and almost no warpage occurred.
【００２１】これに対して、透明反り矯正シートに代え
て同様の低反射処理を施した厚さ７５μｍのトリアセチ
ルセルロースフィルムを透明保持板の下面に接着した比
較例について、上記実施例と同様の環境試験をしたとこ
ろ、タッチパネルに中央部分が上に１．５ｍｍ出っ張
り、実施例の３倍にもなる反りが発生した。On the other hand, a comparative example in which a 75 μm-thick triacetylcellulose film subjected to the same low reflection treatment instead of the transparent warp correcting sheet was adhered to the lower surface of the transparent holding plate was the same as in the above embodiment. When an environmental test was performed, the center portion of the touch panel protruded 1.5 mm upward, and warpage that was three times as large as that of the example was generated.
【００２２】[0022]
【発明の効果】本発明に係るタッチパネルは、以上のよ
うな構成および作用からなるので、次の効果が奏され
る。The touch panel according to the present invention has the above configuration and operation, and has the following effects.
【００２３】すなわち、ポリカーボネート板からなる透
明保持板を間に挟んでポリエチレンテレフタレートフィ
ルムを用いた下部電極シートと透明反り矯正シートとが
透明保持板に全面接着されている。したがって、タッチ
パネルが厳しい温度環境や湿度環境に曝されたときで
も、透明保持板の下部電極シート側と透明反り矯正シー
ト側とで寸法変化にほとんど差がなく、タッチパネルに
反りがほとんど発生しない。That is, a lower electrode sheet using a polyethylene terephthalate film and a transparent warp correction sheet are entirely adhered to the transparent holding plate with a transparent holding plate made of a polycarbonate plate interposed therebetween. Therefore, even when the touch panel is exposed to severe temperature or humidity environment, there is almost no difference in dimensional change between the lower electrode sheet side of the transparent holding plate and the transparent warp correction sheet side, and the touch panel hardly warps.
【図１】本発明のタッチパネルの基本構成を示図であ
る。FIG. 1 is a diagram showing a basic configuration of a touch panel of the present invention.
【図２】一般的なタッチパネルの基本構成を示す図であ
る。FIG. 2 is a diagram showing a basic configuration of a general touch panel.
【図３】タッチパネルの反りについて示す模式図であ
る。FIG. 3 is a schematic diagram illustrating warpage of the touch panel.
１ 上部電極シート ２ 下部電極シート ３ スペーサー ４ 透明接着層 ５ 透明保持板 ６ 透明反り矯正シート DESCRIPTION OF SYMBOLS 1 Upper electrode sheet 2 Lower electrode sheet 3 Spacer 4 Transparent adhesive layer 5 Transparent holding plate 6 Transparent warp correction sheet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 橋本 孝夫 京都府京都市中京区壬生花井町３番地 日 本写真印刷株式会社内 Ｆターム(参考） 5G006 FB14 FB17 FB31 FB39 FD02 5G023 AA12 CA19 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takao Hashimoto F-term in Nihon Photo Printing Co., Ltd. 3 Mibuhanai-cho, Nakagyo-ku, Kyoto, Kyoto 5G006 FB14 FB17 FB31 FB39 FD02 5G023 AA12 CA19
Claims (1)
明フィルム上に透明電極を有する一対の上部電極シート
および下部電極シートとが電極間に絶縁物よりなるスペ
ーサーを介して対向配置され、下部電極シートの下面に
ポリカーボネート板からなる透明保持板が透明接着層を
介して全面的に接着され、さらに透明保持板の下面にポ
リエチレンテレフタレートフィルムからなる透明反り矯
正シートが透明接着層を介して全面的に接着されている
ことを特徴とするタッチパネル。1. A pair of upper and lower electrode sheets each having a transparent electrode on a transparent film made of polyethylene terephthalate are opposed to each other via a spacer made of an insulator between the electrodes, and polycarbonate is provided on the lower surface of the lower electrode sheet. The transparent holding plate made of a plate is entirely adhered via a transparent adhesive layer, and a transparent warp correcting sheet made of a polyethylene terephthalate film is entirely adhered to the lower surface of the transparent holding plate via a transparent adhesive layer. A touch panel characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP514399A JP4435890B2 (en) | 1999-01-12 | 1999-01-12 | Touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP514399A JP4435890B2 (en) | 1999-01-12 | 1999-01-12 | Touch panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000207983A true JP2000207983A (en) | 2000-07-28 |
| JP4435890B2 JP4435890B2 (en) | 2010-03-24 |
Family
ID=11603091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP514399A Expired - Fee Related JP4435890B2 (en) | 1999-01-12 | 1999-01-12 | Touch panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4435890B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002091161A1 (en) * | 2001-05-07 | 2002-11-14 | Matsushita Electric Industrial Co., Ltd. | Touch panel and electronic apparatus using the same |
| US7097903B2 (en) | 2002-02-21 | 2006-08-29 | Nitto Denko Corporation | Double-sided pressure-sensitive adhesive sheet and method for sticking and fixing touch panel to display device |
| US7298366B2 (en) * | 2000-12-28 | 2007-11-20 | Matsushita Electric Industrial Co., Ltd. | Touch panel and electronic equipment using the same |
| WO2014185404A1 (en) | 2013-05-16 | 2014-11-20 | デクセリアルズ株式会社 | Capacitive touch panel |
| WO2015025711A1 (en) | 2013-08-20 | 2015-02-26 | デクセリアルズ株式会社 | Capacitive touch panel |
| WO2015033569A1 (en) | 2013-09-06 | 2015-03-12 | デクセリアルズ株式会社 | Capacitive touch panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04280014A (en) * | 1991-03-06 | 1992-10-06 | Nissha Printing Co Ltd | Transparent touch panel |
| JPH08148036A (en) * | 1994-11-18 | 1996-06-07 | Nitto Denko Corp | Transparent conductive film |
| JPH10217380A (en) * | 1996-05-28 | 1998-08-18 | Mitsui Chem Inc | Transparent laminate and filter for display using the same |
-
1999
- 1999-01-12 JP JP514399A patent/JP4435890B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04280014A (en) * | 1991-03-06 | 1992-10-06 | Nissha Printing Co Ltd | Transparent touch panel |
| JPH08148036A (en) * | 1994-11-18 | 1996-06-07 | Nitto Denko Corp | Transparent conductive film |
| JPH10217380A (en) * | 1996-05-28 | 1998-08-18 | Mitsui Chem Inc | Transparent laminate and filter for display using the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7298366B2 (en) * | 2000-12-28 | 2007-11-20 | Matsushita Electric Industrial Co., Ltd. | Touch panel and electronic equipment using the same |
| WO2002091161A1 (en) * | 2001-05-07 | 2002-11-14 | Matsushita Electric Industrial Co., Ltd. | Touch panel and electronic apparatus using the same |
| US7161588B2 (en) | 2001-05-07 | 2007-01-09 | Matsushita Electric Industrial Co., Ltd. | Touch panel and electronic apparatus using the same |
| US7097903B2 (en) | 2002-02-21 | 2006-08-29 | Nitto Denko Corporation | Double-sided pressure-sensitive adhesive sheet and method for sticking and fixing touch panel to display device |
| WO2014185404A1 (en) | 2013-05-16 | 2014-11-20 | デクセリアルズ株式会社 | Capacitive touch panel |
| CN105229578A (en) * | 2013-05-16 | 2016-01-06 | 迪睿合株式会社 | Capacitance type touch panel |
| KR20160009630A (en) | 2013-05-16 | 2016-01-26 | 데쿠세리아루즈 가부시키가이샤 | Capacitive touch panel |
| WO2015025711A1 (en) | 2013-08-20 | 2015-02-26 | デクセリアルズ株式会社 | Capacitive touch panel |
| WO2015033569A1 (en) | 2013-09-06 | 2015-03-12 | デクセリアルズ株式会社 | Capacitive touch panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4435890B2 (en) | 2010-03-24 |
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