JP2015092422A - Curved touch panel - Google Patents
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- JP2015092422A JP2015092422A JP2015031984A JP2015031984A JP2015092422A JP 2015092422 A JP2015092422 A JP 2015092422A JP 2015031984 A JP2015031984 A JP 2015031984A JP 2015031984 A JP2015031984 A JP 2015031984A JP 2015092422 A JP2015092422 A JP 2015092422A
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Abstract
【課題】スマートフォンのように加飾パネルで機器の表面全体を覆って自動車の内装と一体感のあるフラットなデザインに対応できるといった効果を得ることができる表面が湾曲している静電容量方式タッチパネルを提供する。【解決手段】表面が凸状に湾曲した湾曲面２１を有するベースガラス２と、ベースガラス２の湾曲面に対応して湾曲する静電容量方式のタッチセンサー部４と、ベースガラス２の湾曲面２１の曲率半径で全体が湾曲しているカバーガラス６とが、ＯＣＡ３，５によって貼り合わされ、表面が湾曲した湾曲型タッチパネル１が形成される。【選択図】図４Capacitive touch panel having a curved surface capable of obtaining an effect of covering the entire surface of a device with a decorative panel like a smartphone and being able to cope with a flat design having a sense of unity with the interior of an automobile I will provide a. A base glass 2 having a curved surface 21 whose surface is curved in a convex shape, a capacitive touch sensor unit 4 curved corresponding to the curved surface of the base glass 2, and a curved surface of the base glass 2. The cover glass 6, which is entirely curved with a curvature radius of 21, is bonded by the OCA 3, 5 to form the curved touch panel 1 having a curved surface. [Selection] Figure 4
Description
本発明は、スマートフォンやタブレット型端末等に用いられる湾曲型タッチパネルに関する。 The present invention relates to a curved touch panel used for smartphones, tablet terminals, and the like.
近年、ゲーム機、自動車の操作パネル、ファッション性の高いパソコンの入出力装置では曲面を持つタッチパネルが求められている。そのようなタッチパネルとしては、例えば、特許文献１に記載のタッチパネルがあり、このタッチパネルは、板状で、表面に指示体が接触又は近接した際に指示位置を検出する検出部材と、検出部材が拘束部材によって拘束された状態で、検出部材の裏面を支持して検出部材を湾曲させる湾曲部材と、から構成された抵抗膜方式タッチパネルである。 In recent years, a touch panel having a curved surface is required for an input / output device of a game machine, an operation panel of an automobile, or a highly fashionable personal computer. As such a touch panel, for example, there is a touch panel described in Patent Document 1. This touch panel is plate-shaped, and includes a detection member that detects an indication position when an indicator contacts or approaches the surface, and a detection member. It is a resistive film type touch panel comprised from the curved member which supports the back surface of a detection member and curves a detection member in the state restrained by the restraint member.
抵抗膜方式タッチパネルは、誤動作が少なく手袋などでの入力が可能であることから、カーナビゲーションなどの車載ディスプレイに採用されてきた。しかしながら、近年のスマートフォンの急速な普及や通信機能を持ち、Ｗｅｂサービスを利用できるような車載情報システムの搭載により、国内外の自動車／電装メーカーから静電容量方式タッチパネルの操作感を車載用途にも採用したいという要望が高まっている。 Resistive touch panels have been used for in-vehicle displays such as car navigation systems because they have few malfunctions and can be input with gloves. However, with the rapid spread of smartphones in recent years and the installation of in-vehicle information systems that have communication functions and can use Web services, the operational feeling of capacitive touch panels from domestic and overseas automobile / electrical equipment manufacturers can also be applied to in-vehicle applications. There is a growing demand for adoption.
また、静電容量方式タッチパネルを使うと、センサー表面にガラスやアクリルなど厚く硬い加飾パネルを用いることができるため、スマートフォンのように加飾パネルで機器の表面全体を覆って自動車の内装と一体感のあるフラットなデザインに対応できるといった利点もあり、市場においては、表面が湾曲した静電容量方式タッチパネルの開発が切望されている。 In addition, when a capacitive touch panel is used, a thick and hard decorative panel such as glass or acrylic can be used on the sensor surface, so that the entire surface of the device is covered with a decorative panel like a smartphone to match the interior of the car. There is also an advantage that it can correspond to a flat design with a feeling, and development of a capacitive touch panel with a curved surface is eagerly desired in the market.
本発明は、上述した事情に鑑みてなされたものであり、表面が湾曲した静電容量方式のタッチパネルを提供することを目的とするものである。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a capacitive touch panel having a curved surface.
前記の目的を達成するために、本発明の湾曲型タッチパネルは、湾曲面を有する湾曲部材と、該湾曲部材の湾曲面に対応して湾曲して設けられた静電容量方式のタッチセンサー部と、を備えることを特徴とする。 In order to achieve the above object, a curved touch panel according to the present invention includes a curved member having a curved surface, and a capacitive touch sensor unit that is curved and provided corresponding to the curved surface of the curved member. It is characterized by providing.
本発明によれば、湾曲面を有する湾曲部材と、該湾曲部材の湾曲面に対応して湾曲している静電容量方式のタッチセンサー部と、を備える湾曲型タッチパネルを提供する。これにより、従来の湾曲型の抵抗膜方式タッチパネルでは得られなかった効果、具体的には、静電容量方式タッチパネルの操作感を車載用途にも採用したいという要望が叶えられるとともに、スマートフォンのように加飾パネルで機器の表面全体を覆って自動車の内装と一体感のあるフラットなデザインに対応できるといった効果が得られる。 According to the present invention, there is provided a curved touch panel including a curved member having a curved surface and a capacitive touch sensor unit that is curved corresponding to the curved surface of the curved member. As a result, the effect that cannot be obtained with the conventional curved resistive touch panel, specifically, the desire to adopt the operation feeling of the capacitive touch panel for in-vehicle use, as well as the smartphone. The effect is that the entire surface of the device is covered with a decorative panel and a flat design with a sense of unity with the interior of the car can be accommodated.
以下、本発明を実施するための形態について、図面を参照しながら説明する。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
図１に示すように、本発明の湾曲型タッチパネル１は、表面に湾曲面２１を有するベースガラス２（湾曲部材）と、静電容量方式のタッチセンサー部４と、を備えている。タッチセンサー部４は、フィルム状の粘着シート（光学糊）であるＯＣＡ３により湾曲面２１上に貼り合わされる。同様に、カバーガラス６も、ＯＣＡ５によってタッチセンサー部５上に貼り合わされる。 As shown in FIG. 1, the curved touch panel 1 of the present invention includes a base glass 2 (curved member) having a curved surface 21 on the surface, and a capacitive touch sensor unit 4. The touch sensor unit 4 is bonded onto the curved surface 21 by OCA3 which is a film-like adhesive sheet (optical glue). Similarly, the cover glass 6 is also bonded onto the touch sensor unit 5 by the OCA 5.
図２に示すようにベースガラス２は、表面が湾曲したガラスであり、本実施形態においては、その端部２１Ａの厚みｔ１は０．６ｍｍ、一番厚い中央部２１Ｂの厚みｔ２は２．５ｍｍ、湾曲面２１の曲率半径は６００ｍｍ乃至１２００ｍｍである。本実施形態においては底面を平面で形成していることから、従来のＬＣＤモジュールを使用することが可能である。 As shown in FIG. 2, the base glass 2 is a glass having a curved surface. In this embodiment, the thickness t1 of the end portion 21A is 0.6 mm, and the thickness t2 of the thickest central portion 21B is 2.5 mm. The curvature radius of the curved surface 21 is 600 mm to 1200 mm. In the present embodiment, since the bottom surface is formed as a flat surface, a conventional LCD module can be used.
図３（ａ）に示すようにタッチセンサー部４は、Ｙ電極ガラス部４１とＸ電極ガラス部４２とがＯＣＡ４３によって貼り合わせてなり、フレキシブルプリント回路基板ＦＰＣ４０を介してコントロールボード（図示しない）と接続される。Ｙ電極ガラス部４１及びＸ電極部４２の厚みは０．０５ｍｍ乃至０．２ｍｍであることから、湾曲面２１に対応して湾曲した状態でベースガラス上に貼り合わせることが可能である。 As shown in FIG. 3A, the touch sensor unit 4 includes a Y electrode glass unit 41 and an X electrode glass unit 42 bonded together by an OCA 43, and a control board (not shown) via a flexible printed circuit board FPC 40. Connected. Since the thickness of the Y electrode glass part 41 and the X electrode part 42 is 0.05 mm to 0.2 mm, it can be bonded to the base glass in a curved state corresponding to the curved surface 21.
また、上記のようにタッチセンサー部４を２枚のガラスの貼り合わせ構造にしたことによって、次のような効果が得られる。図３（ｂ）には、その効果を説明すべく指でタッチした状態の模式図が図示されており、４１０及び４２０はガラス板、４１ＹはＩＴＯ（酸化インジウム・スズ）によって形成されたＹ電極、４２ＹはＩＴＯによって形成されたＸ電極である。このタッチセンサー部４では、Ｙ電極４１ＹとＸ電極４２Ｘ間に安定したキャパシタンスがあるため、図３（ｂ）のように、電界は上部に強く下部に弱く発生しノイズに強くなる。また、Ｘ電極４２Ｘがシールド効果をもつので、ＬＣＤ側（図示しない）からのノイズ耐性に優れる。さらに、Ｘ、Ｙ電極を一枚のガラス基板上に形成する従来のタッチパネル構造ではなく、Ｘ、Ｙ電極を２枚のガラスに分割して形成する構造を採用しているので、Ｘ、Ｙ電極の交差部分にジャンパーを形成する必要がなく、交差部分での断線の心配がないといった効果を得られる。 Moreover, the following effects are acquired by making the touch sensor part 4 into the laminated structure of 2 sheets of glass as mentioned above. FIG. 3B is a schematic diagram showing a state where the finger is touched to explain the effect. 410 and 420 are glass plates, and 41Y is a Y electrode formed of ITO (indium tin oxide). 42Y are X electrodes made of ITO. In this touch sensor unit 4, since there is a stable capacitance between the Y electrode 41Y and the X electrode 42X, the electric field is generated at the upper part and weakly at the lower part and becomes more resistant to noise as shown in FIG. Further, since the X electrode 42X has a shielding effect, it is excellent in noise resistance from the LCD side (not shown). Furthermore, since the X and Y electrodes are not formed on a single glass substrate but a structure in which the X and Y electrodes are divided and formed on two glasses, the X and Y electrodes are used. It is not necessary to form a jumper at the crossing portion, and there is an effect that there is no fear of disconnection at the crossing portion.
図１に示すように、カバーガラス６は、ベースガラス２の湾曲面２１の曲率半径に対応するよう、同一の曲率半径（６００ｍｍ乃至１，２００ｍｍ）にて全体が湾曲している。本実施形態では、その厚みは０．７ｍｍで構成されている。 As shown in FIG. 1, the cover glass 6 is entirely curved with the same curvature radius (600 mm to 1,200 mm) so as to correspond to the curvature radius of the curved surface 21 of the base glass 2. In the present embodiment, the thickness is 0.7 mm.
上述のように構成された各構成をＯＣＡ３，５によって貼り合わせると本発明の湾曲型タッチパネル１となる。図４（ａ）には、この湾曲型タッチパネル１の断面図が図示されており、この湾曲型タッチパネル１は、ベースガラス２の湾曲面２１にタッチセンサー部４がＯＣＡ３によって貼り合わされ、さらに、この上にカバーガラス６がＯＣＡ５によって貼り合わされる。このように構成したことにより、表面が湾曲した静電容量方式タッチパネルとなる。 When the components configured as described above are bonded together by the OCAs 3 and 5, the curved touch panel 1 of the present invention is obtained. FIG. 4A shows a cross-sectional view of the curved touch panel 1. In the curved touch panel 1, the touch sensor unit 4 is bonded to the curved surface 21 of the base glass 2 by the OCA 3. A cover glass 6 is bonded to the top by OCA 5. With this configuration, a capacitive touch panel having a curved surface is obtained.
また、上記実施形態（第１実施形態）においては、ベースガラス２の湾曲面２１を凸状に形成したことから、湾曲型タッチパネル１は凸状に湾曲した湾曲型タッチパネルとなったが、図４（ｂ）のように、ベースガラス２０を凹状の湾曲面とし、この上にタッチセンサー部４を凹状に湾曲させて貼り合わせ、さらに、ベースガラス２０の湾曲面の曲率に対応する湾曲状のカバーガラス６０を貼り合わせれば、凹状の湾曲型タッチパネル１０とすることができる（第２実施形態）。 Moreover, in the said embodiment (1st Embodiment), since the curved surface 21 of the base glass 2 was formed in convex shape, although the curved touch panel 1 became a curved curved touch panel curved convexly, FIG. As shown in (b), the base glass 20 is formed into a concave curved surface, and the touch sensor unit 4 is curved and bonded to the concave curved surface, and further, a curved cover corresponding to the curvature of the curved surface of the base glass 20. If the glass 60 is bonded together, the concave curved touch panel 10 can be obtained (second embodiment).
なお、第１実施形態においては、ベースガラス２の底面を平面で形成したが、図４（ｃ）のように、底面が凸状に形成されたベースガラス２００を使用することも可能である。この場合、タッチセンサー部４及びカバーガラス６の構成は第１実施形態と同様であり、貼り合わせ方も同様である。 In addition, in 1st Embodiment, although the bottom face of the base glass 2 was formed in the plane, as shown in FIG.4 (c), it is also possible to use the base glass 200 in which the bottom face was formed in convex shape. In this case, the configurations of the touch sensor unit 4 and the cover glass 6 are the same as those in the first embodiment, and the way of bonding is also the same.
１ ：湾曲型タッチパネル（第１実施形態）
１０ ：湾曲型タッチパネル（第２実施形態）
１００：湾曲型タッチパネル（第３実施形態）
２ ：ベースガラス（第１実施形態の湾曲部材）
２０ ：ベースガラス（第２実施形態の湾曲部材）
２００：ベースガラス（第３実施形態の湾曲部材）
２１ ：湾曲面
２１Ａ：端部
２１Ｂ：中央部
３ ：ＯＣＡ
４ ：タッチセンサー部
４０ ：ＦＰＣ
４１ ：Ｙ電極ガラス部
４１Ｙ：Ｙ電極
４１０：ガラス板
４２ ：Ｘ電極ガラス部
４２Ｘ：Ｘ電極
４２０：ガラス板
４３ ：ＯＣＡ
５ ：ＯＣＡ
６ ：カバーガラス（第１実施形態）
６０ ：カバーガラス（第２実施形態）
６００：カバーガラス（第３実施形態）
1: Curved touch panel (first embodiment)
10: Curved touch panel (second embodiment)
100: Curved touch panel (third embodiment)
2: Base glass (curved member of the first embodiment)
20: Base glass (curved member of the second embodiment)
200: Base glass (curved member of the third embodiment)
21: Curved surface 21A: End portion 21B: Center portion 3: OCA
4: Touch sensor unit 40: FPC
41: Y electrode glass part 41Y: Y electrode 410: Glass plate 42: X electrode glass part 42X: X electrode 420: Glass plate 43: OCA
5: OCA
6: Cover glass (first embodiment)
60: Cover glass (second embodiment)
600: Cover glass (third embodiment)
Claims (1)
A curved touch panel, comprising: a curved member having a curved surface; and a capacitive touch sensor unit that is curved and provided corresponding to the curved surface of the curved member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015031984A JP2015092422A (en) | 2015-02-20 | 2015-02-20 | Curved touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015031984A JP2015092422A (en) | 2015-02-20 | 2015-02-20 | Curved touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2015092422A true JP2015092422A (en) | 2015-05-14 |
Family
ID=53195510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015031984A Pending JP2015092422A (en) | 2015-02-20 | 2015-02-20 | Curved touch panel |
Country Status (1)
| Country | Link |
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| JP (1) | JP2015092422A (en) |
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2015
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