JPS6361283A - Touch panel - Google Patents
Touch panelInfo
- Publication number
- JPS6361283A JPS6361283A JP61205563A JP20556386A JPS6361283A JP S6361283 A JPS6361283 A JP S6361283A JP 61205563 A JP61205563 A JP 61205563A JP 20556386 A JP20556386 A JP 20556386A JP S6361283 A JPS6361283 A JP S6361283A
- Authority
- JP
- Japan
- Prior art keywords
- transparent
- touch panel
- liquid
- dot spacer
- transparent electrode
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 21
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- AZWHFTKIBIQKCA-UHFFFAOYSA-N [Sn+2]=O.[O-2].[In+3] Chemical compound [Sn+2]=O.[O-2].[In+3] AZWHFTKIBIQKCA-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、透明基板間に反射抑制液を封入して透過光の
減少、反射光によるチラッキ等を抑制し、視認性の向上
をはかったタッチパネルに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a touch panel that improves visibility by sealing a reflection suppressing liquid between transparent substrates to suppress reduction in transmitted light and flicker caused by reflected light. .
従来の技術及び問題点
ＣＲＴ’ｌ′）ＬＣＤ等の表示装置における視認側にタ
ッチパネルを配置してなる入力装置付表示装置が普及し
ている。BACKGROUND ART AND PROBLEMS Display devices with input devices are in widespread use, in which a touch panel is disposed on the viewing side of a display device such as a CRT'l' LCD.
従来、そのタッチパネルとしてはドツトスペーサを介在
させた状態で、透明電極を設けた透明基板をその透明電
極付設側を内側にして隼に対向配置したものが知られて
いた。Conventionally, such a touch panel has been known in which a transparent substrate provided with a transparent electrode is disposed opposite to each other with the side provided with the transparent electrode facing inside with a dot spacer interposed therebetween.
しかしながら、このタッチパネルにあっては反射光によ
るチラッキ、ドツトスペーサの顕著な視覚、反射損によ
る透過光の減少などにより、これを用いた表示装置が視
認性に劣る問題点があった。However, this touch panel has problems in that a display device using it has poor visibility due to flickering caused by reflected light, noticeable visibility of the dot spacer, and reduction in transmitted light due to reflection loss.
また、空気層を介して透明基板が対向配置された構造で
あるので透明電極の酸化問題、入力時に透明電極に及ぼ
す衝撃問題などにより信頼性に劣る問題点もあった。In addition, since the structure is such that the transparent substrates are placed opposite to each other with an air layer in between, there are problems of poor reliability due to problems such as oxidation of the transparent electrodes and problems of impact on the transparent electrodes during input.
問題点を解決するための手段
本発明は、透明基板間に反射抑制液を封入することによ
り上記の問題点を克服したちのである。Means for Solving the Problems The present invention overcomes the above problems by sealing a reflection suppressing liquid between the transparent substrates.
すなわち、本発明は、透明電極を設けた透明基板をその
透明電極付設側を内側にして、かつドツトスペーサを介
在させて対向配置した間に、反射抑制液を封入してなる
タッチパネルを提供するものである。That is, the present invention provides a touch panel in which a reflection suppressing liquid is sealed between transparent substrates provided with transparent electrodes, which are placed facing each other with the transparent electrode provided side facing inside, with a dot spacer interposed therebetween. It is.
作用
透明基板間に反射抑制液を封入することにより、透明基
板ないし透明電極と反射抑制液との界面における反射が
抑制され、総じてタッチパネルにより反射される光量が
減少する。その結果、透過光が増加し、反射光によるチ
ラッキが減少する。また、ドツトスペーサとの屈折率差
が減少してドツトスペーサの視覚性が低下する。さらに
、反射抑制液により衝！力が緩和され、透明電極の酸化
が抑制される。By sealing the reflection suppressing liquid between the working transparent substrates, reflection at the interface between the transparent substrate or the transparent electrode and the reflection suppressing liquid is suppressed, and the amount of light reflected by the touch panel is generally reduced. As a result, transmitted light increases and flickering due to reflected light decreases. Furthermore, the difference in refractive index between the dot spacer and the dot spacer decreases, thereby reducing the visibility of the dot spacer. In addition, anti-reflection liquid makes it more effective! The force is relaxed and oxidation of the transparent electrode is suppressed.
実施例
図は本発明の実施例を示したものである。１は透明基板
であり、これは厚さ１００νｍの二軸延伸ポリエステル
フィルムからなる。２は透明基板１の片面に設けられた
透明電極であり、これはスパッタリング方式により形成
した厚さ２００Ａのインジウム酸化物−スズ酸化物から
なるＩＴ○膜を所定のパターンにエツチング処理したも
のからなる。Embodiment The drawings show an embodiment of the present invention. 1 is a transparent substrate, which is made of a biaxially stretched polyester film with a thickness of 100 νm. 2 is a transparent electrode provided on one side of the transparent substrate 1, which is made of an IT○ film made of indium oxide-tin oxide with a thickness of 200 A formed by sputtering and etched into a predetermined pattern. .
３は透明基板１．７間に封入された反射抑制液であり、
これはシリコーン系界面活性剤からなる。3 is a reflection suppressing liquid sealed between the transparent substrates 1.7;
It consists of a silicone surfactant.
４はエポキシ系接着剤からなるシール材である。4 is a sealing material made of epoxy adhesive.
５は透明基板間のギャップを保証するためのドツトスペ
ーサである。ドツトスペーサ５は、透明なエポキシ系樹
脂からなる高さ５０ｕｍの突起として透明基板７の片面
の所定箇所に点在する。６は透明基板７の片面に設けら
れた透明電極であり、これは所定のパターンに処理され
た厚さ４００ＡのＩＴＯ膜からなる。なお、透明基板７
は厚さ１聴のソーダガラスからなる。5 is a dot spacer for ensuring a gap between the transparent substrates. The dot spacers 5 are dotted at predetermined locations on one side of the transparent substrate 7 as protrusions with a height of 50 um made of transparent epoxy resin. A transparent electrode 6 is provided on one side of the transparent substrate 7, and is made of a 400A thick ITO film processed into a predetermined pattern. Note that the transparent substrate 7
is made of soda glass 1 mm thick.
反射抑制液からなる層は透明基板１，７をその透明電極
２，６を設けた側を内側にして対向配置し、その周囲を
注入孔を残してシール材４でシールしたのち注入孔より
反射抑制液を注入し、最後に注入孔をシールして形成し
た。The layer consisting of the anti-reflection liquid is formed by arranging the transparent substrates 1 and 7 facing each other with the sides on which the transparent electrodes 2 and 6 are provided inside, and sealing the periphery with a sealing material 4 leaving an injection hole. The suppression liquid was injected and the injection hole was finally sealed.
本発明において反射抑制液としては絶縁性の透明液が用
いられる。その他の点については特に限定はない。一般
には、界面活性剤、樹脂液、その他無機系ないし有機系
の液体などが用いられる。In the present invention, an insulating transparent liquid is used as the reflection suppressing liquid. There are no particular limitations on other points. Generally, surfactants, resin liquids, and other inorganic or organic liquids are used.
好ましくは、タッチパネルを構成する透明基板又は透明
電極と反射抑制液との界面における反射率がタッチパネ
ル全体として最少となる屈折率を有するものが用いられ
る。なお、透明基板ないし透明電極を腐食する物質は好
ましくない。Preferably, a material having a refractive index such that the reflectance at the interface between the transparent substrate or the transparent electrode constituting the touch panel and the reflection suppressing liquid is minimized for the touch panel as a whole is preferably used. Note that substances that corrode the transparent substrate or transparent electrode are not preferred.
本発明のタッチパネルにおける透明基板、透明電極、ド
ツトスペーサ等の反射抑制液以外のものについては、そ
の種類、形態等について特に限定はなく公知のものが用
いられる。なお、ドツトスペーサ形成材としてはその屈
折率が反射抑制液のそれと同じか近いものが好ましく用
いられる。Regarding the transparent substrate, transparent electrode, dot spacer, etc. other than the anti-reflection liquid in the touch panel of the present invention, there are no particular limitations on the type, form, etc., and known ones can be used. As the dot spacer forming material, a material whose refractive index is the same as or close to that of the reflection suppressing liquid is preferably used.
発明の効果
本発明によれば透明基板間に反射抑制液を封入したので
、反射光を減少させることができる。従って、透過光を
増加させ、チラッキを抑制することができて視認性に優
れるタッチパネルとすることができる。Effects of the Invention According to the present invention, since the reflection suppressing liquid is sealed between the transparent substrates, reflected light can be reduced. Therefore, it is possible to increase the amount of transmitted light, suppress flickering, and provide a touch panel with excellent visibility.
ちなみに、上記した実施例のタッチパネルに波長５５０
ｎｍの光を垂直入射させた場合の透過率は８４．５？６
である。この値は反射抑制液を封入せずに単なる空気層
とした従来仕様のもの（透過率７３．５ ）に比べｌｌ
？６（ＩＷれたものである。By the way, the touch panel of the above example has a wavelength of 550
The transmittance when vertically incident nm light is 84.5?6
It is. This value is much higher than that of the conventional model (transmittance 73.5), which does not contain reflection suppressing liquid and has a simple air layer.
? 6 (IW).
なお、下表に屈折率が１．７の透明基板の上に屈折率が
２．０の透明電極を設けたものと、屈折率が異なる反射
抑制液との界面における反射率（波長５５０ｎｍ ％垂
直入射、図の矢印参照）の計算値を示す。The table below shows the reflectance (wavelength: 550 nm, % vertical The calculated value of the incidence (see arrow in the figure) is shown.
本発明によれば、上記したように視認性に優れるものと
することができるほか、ドツトスペーサと反射抑制液と
の屈折率差を小さくすることができてドツトスペーサの
視覚性を低減することができる。ドツトスペーサと反射
抑制液との屈折率が同じ場合にはドツトスペーサを完全
に視覚されない状態とすることができる。According to the present invention, in addition to providing excellent visibility as described above, it is possible to reduce the difference in refractive index between the dot spacer and the anti-reflection liquid, thereby reducing the visibility of the dot spacer. can. When the dot spacer and the antireflection liquid have the same refractive index, the dot spacer can be completely invisible.
さらに、透明電極の酸化を抑制し、入力時における衝撃
力を緩和しつる結果、透明電極の信頼性ないし安定１１
の向上をはかることができる。Furthermore, the oxidation of the transparent electrode is suppressed and the impact force during input is reduced, resulting in improved reliability and stability of the transparent electrode.
can be improved.
図は本発明の実施例の側面断面図である。
１．７：透明基板
２．６：透明電極
３：反射抑制液
４：シール材
５：ドツトスペーサ
特許出願人 日東電気工業株式会社
代 理 人 藤 本 勉り：
ｙウトスヘ０−ワThe figure is a side sectional view of an embodiment of the invention. 1.7: Transparent substrate 2.6: Transparent electrode 3: Reflection suppressing liquid 4: Sealing material 5: Dot spacer Patent applicant Nitto Electric Industry Co., Ltd. Representative Fujimoto Study:
youthshe 0-wa
Claims (1)
内側にして、かつドットスペーサを介在させて対向配置
した間に、反射抑制液を封入してなるタッチパネル。1. A touch panel in which a reflection suppressing liquid is sealed between transparent substrates provided with transparent electrodes, which are placed facing each other with the transparent electrode provided side facing inside, with dot spacers interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205563A JPS6361283A (en) | 1986-09-01 | 1986-09-01 | Touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205563A JPS6361283A (en) | 1986-09-01 | 1986-09-01 | Touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6361283A true JPS6361283A (en) | 1988-03-17 |
Family
ID=16508965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61205563A Pending JPS6361283A (en) | 1986-09-01 | 1986-09-01 | Touch panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6361283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009054227A1 (en) * | 2007-10-26 | 2009-04-30 | Teijin Limited | Transparent conductive laminate and touch panel |
-
1986
- 1986-09-01 JP JP61205563A patent/JPS6361283A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009054227A1 (en) * | 2007-10-26 | 2009-04-30 | Teijin Limited | Transparent conductive laminate and touch panel |
| US8512847B2 (en) | 2007-10-26 | 2013-08-20 | Teijin Limited | Transparent conductive laminate and touch panel |
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