JP2020024590A - Touch operation panel - Google Patents

Touch operation panel Download PDF

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Publication number
JP2020024590A
JP2020024590A JP2018149008A JP2018149008A JP2020024590A JP 2020024590 A JP2020024590 A JP 2020024590A JP 2018149008 A JP2018149008 A JP 2018149008A JP 2018149008 A JP2018149008 A JP 2018149008A JP 2020024590 A JP2020024590 A JP 2020024590A
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Prior art keywords
touch operation
liquid crystal
crystal display
substrate
operation panel
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JP2018149008A
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Japanese (ja)
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努 井上
Tsutomu Inoue
努 井上
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SMK Corp
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SMK Corp
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Abstract

To provide a touch operation panel with an excellent force feedback function.SOLUTION: A touch operation panel comprises a liquid crystal display part, and a substrate laminated to the surface of a liquid crystal display part. The substrate has an extention part extending outward from the outer edge of the liquid crystal display part. A touch operation part is provided on the front surface of the extention part, and a vibrator is provided on the back surface of the extention part.SELECTED DRAWING: Figure 1

Description

本発明は、フォース フィードバック機能を有するタッチ操作パネルに関する。   The present invention relates to a touch operation panel having a force feedback function.

静電容量方式のタッチパネルはカーナビゲーションディスプレイ,インフォメーションディスプレイ,各種電子機器の操作パネル,各種FA機器の操作パネル等に広く採用されている。
この静電容量方式のタッチパネルにあっては、操作荷重が概ねゼロであるため、使用者にとっては操作感が得られにくい性質を有している。
そこで、使用者の押圧操作を検知して、操作部に振動を与えるフォース フィードバック機能を持たせることが検討されている。
Capacitive touch panels are widely used in car navigation displays, information displays, operation panels of various electronic devices, operation panels of various FA devices, and the like.
Since the operation load is substantially zero, the capacitance type touch panel has a property that a user cannot easily obtain an operation feeling.
Therefore, it has been studied to provide a force feedback function that detects a pressing operation by a user and applies vibration to the operation unit.

例えば特許文献1には、保護基板の背面側に検出基板を備え、この保護基板は検出基板の周縁から張出した張出部の表面に振動体を固定した入力装置を開示する。
しかし、同公報に記載された振動体は、保護基板の張出部に固定されているものの、表示体と保護基板との間に検出体を接合し、保護基板全体を振動させることが前提になっているため、振動体の振動が保護基板の裏面に接合されている検出体や表示部にて阻害され、充分なフォース フィードバック機能が得られにくい技術的課題がある。
For example, Patent Literature 1 discloses an input device in which a detection substrate is provided on the back side of a protection substrate, and the protection substrate is provided with a vibrating body fixed to a surface of a protruding portion that protrudes from a periphery of the detection substrate.
However, although the vibrating body described in the publication is fixed to the overhanging portion of the protective substrate, it is premised that the detecting body is joined between the display body and the protective substrate and the entire protective substrate is vibrated. Therefore, there is a technical problem that the vibration of the vibrating body is hindered by the detecting body and the display unit bonded to the back surface of the protective substrate, and it is difficult to obtain a sufficient force feedback function.

特開2011−175506号公報JP 2011-175506 A

本発明は、優れたフォース フィードバック機能を備えたタッチ操作パネルの提供を目的とする。   An object of the present invention is to provide a touch operation panel having an excellent force feedback function.

本発明に係るタッチパネルは、液晶表示部と、前記液晶表示部の表面に貼合された基材とを備え、前記基材は前記液晶表示部の外縁から外側に延出した延出部を有し、前記延出部の表面にタッチ操作部を配設し前記延出部の裏面に振動子を配設してあることを特徴とする。   The touch panel according to the present invention includes a liquid crystal display unit, and a base material bonded to a surface of the liquid crystal display unit, and the base material has an extension that extends outward from an outer edge of the liquid crystal display unit. A touch operation unit is provided on a surface of the extension unit, and a vibrator is provided on a back surface of the extension unit.

ここで、液晶表示部とは、液晶組成物を利用した平面状で薄型の視覚表示装置をいい、情報表示装置,画像表示装置等として広く使用されているものをいう。   Here, the liquid crystal display unit refers to a flat and thin visual display device using a liquid crystal composition, which is widely used as an information display device, an image display device, or the like.

静電容量方式のタッチパネルにおいては、この液晶表示部の表面に、押圧位置を検出するための透明なITO膜が所定のパターンで形成されたセンサー基材と、その上にカバー基材とを接合させたものが採用されている。
また、このセンサー基材とカバー基材とを一体化し、一枚のガラス基板等の基材にセンサー面を一体的に形成したOGS(One Glass Solution)方式のタッチパネルも知られている。
そこで、本発明における基材には、液晶表示部の表面に貼り合せたセンサー基板の上に設けたカバー基材及び前記OGSにおけるタッチパネル基材の両方が含まれる。
In a capacitance type touch panel, a sensor substrate in which a transparent ITO film for detecting a pressed position is formed in a predetermined pattern on the surface of the liquid crystal display unit, and a cover substrate is bonded thereon. What has been adopted.
Also, an OGS (One Glass Solution) type touch panel in which the sensor substrate and the cover substrate are integrated and the sensor surface is integrally formed on a substrate such as a single glass substrate is known.
Therefore, the base material in the present invention includes both a cover base material provided on the sensor substrate bonded to the surface of the liquid crystal display unit and a touch panel base material in the OGS.

本発明において振動子は、操作者がパネルにタッチした位置を検知し、前記基材(カバー基材又はタッチパネル基材)に振動を与えるものをいい、例えば振動子は前記延出部の裏面に貼付された圧電素子であってもよい。   In the present invention, the vibrator refers to a device that detects a position at which an operator touches a panel and applies vibration to the base material (a cover base material or a touch panel base material). It may be an attached piezoelectric element.

本発明に係るタッチ操作パネルにあっては、液晶表示部の外縁から外側に延出部が延出するように基材を貼り合せるとともに、この延出部の表面側にタッチ操作部及び裏面側に振動子を配設したので、この延出部は振動子により振動しやすくなり、フォース フィードバック機能が向上する。   In the touch operation panel according to the present invention, the base material is bonded so that the extension portion extends outward from the outer edge of the liquid crystal display portion, and the touch operation portion and the rear surface side are provided on the front surface side of the extension portion. Since the vibrator is arranged in the vibrator, the extension portion is easily vibrated by the vibrator, and the force feedback function is improved.

本発明に係るタッチ操作パネルの構造例を示し、(a)は平面視、(b)は側面視を模式的に示す。2A and 2B show a structural example of a touch operation panel according to the present invention, in which FIG.

本発明に係るタッチ操作パネルの構造例を以下図に基づいて説明する。
図1に、タッチ操作パネル10の構造例を模式的に示す。
液晶表示部12の表面にパネル状の基材11を接着剤、両面テープ等にて貼り合せてある。
基材11は、液晶表示部12の外周部の外縁部12a,12bから外側に延出させた寸法Lの延出部11aを有する。
延出部11aの表面側には、指等で押圧入力するタッチ操作部(14a〜14c),(15a〜15c)を有し、裏面側に振動子(13a〜13d)として圧電素子を貼り付けてある。
基材11の端部11b,11cは、自由端あるいは振動が阻害されないようにクッション材,弾性材等にて支持されている。
基材11の延出部11aの表面側のタッチ操作部(14a〜14c,15a〜15c)のいずれかにタッチすると、それが静電容量的に検知され、図示を省略した制御回路にて少なくともその位置に対応した振動子(圧電素子)(13a〜13d)に電気信号が送られ、その振動子が振動することで操作者にフィードバックされる。
特許文献1は、保護基板全体に振動を与えることを前提としているのに対して、本発明は延出部のタッチ操作部に対応して圧電素子が貼付固定されているので、この延出部が振動しやすくなっている。
即ち、延出部11aが液晶表示部12に接合された外縁部12a,12bを支点にして、上下に振動しやすくなっている。
An example of the structure of the touch operation panel according to the present invention will be described below with reference to the drawings.
FIG. 1 schematically shows a structural example of the touch operation panel 10.
A panel-shaped substrate 11 is bonded to the surface of the liquid crystal display unit 12 with an adhesive, a double-sided tape, or the like.
The base material 11 has an extension portion 11a having a dimension L that extends outward from outer edges 12a and 12b of the outer peripheral portion of the liquid crystal display portion 12.
On the front side of the extension part 11a, there are touch operation parts (14a to 14c) and (15a to 15c) for pressing and input with a finger or the like, and on the back side, a piezoelectric element is pasted as a vibrator (13a to 13d). It is.
The ends 11b and 11c of the base material 11 are supported by a free end or a cushion material, an elastic material or the like so as not to hinder the vibration.
When any one of the touch operation sections (14a to 14c, 15a to 15c) on the front surface side of the extension section 11a of the base material 11 is touched, it is detected in terms of capacitance, and at least a control circuit not shown in the drawing is used. An electric signal is sent to a vibrator (piezoelectric element) (13a to 13d) corresponding to the position, and the vibrator vibrates and is fed back to the operator.
Patent Document 1 is based on the premise that vibration is applied to the entire protection substrate. On the other hand, in the present invention, since the piezoelectric element is attached and fixed corresponding to the touch operation section of the extension section, the extension section is provided. Is easy to vibrate.
In other words, the extension 11a is easily vibrated up and down with the outer edges 12a and 12b joined to the liquid crystal display 12 as fulcrums.

本実施例では、液晶表示部12の左右両側に延出部11aを形成した例になっているが、そのうち一方のみでもよく、また上下方向の片側又は両側に形成してもよい。
延出部11aの形状に制限がなく、本実施例の略方形のみならず、用途やデザインに合せて、いろいろな形状にすることができる。
In the present embodiment, the extension portions 11a are formed on both left and right sides of the liquid crystal display section 12, but only one of them may be formed, or one may be formed on one side or both sides in the up-down direction.
There is no limitation on the shape of the extension portion 11a, and the extension portion 11a can be formed into various shapes according to the application and design, in addition to the substantially square shape of the present embodiment.

本実施例では、表面側のタッチ操作部に対応して、裏面側であってこのタッチ操作部の両側に一対の帯状の振動子(13a,13b),(13c,13d)を設けた例になっているが、振動子の形状や配置位置はタッチ操作部の配置に合せて、適宜設計される。   In the present embodiment, a pair of band-shaped vibrators (13a, 13b) and (13c, 13d) are provided on the back side and on both sides of the touch operation section, corresponding to the touch operation section on the front side. However, the shape and the arrangement position of the vibrator are appropriately designed according to the arrangement of the touch operation unit.

図1では、一枚の基材11にて表現したが、押圧位置を検知するガラスセンサーとカバーガラス(カバー基材)とを貼り合せた二枚以上の構造であってもよい。
なお、OGS方式にあってはこの基材板11は、タッチパネル基材となる。
また、基材11の表面に防眩,反射防止,防汚等の各種機能フィルムを貼り合せることができる。
さらには、液晶表示部12の表面部に対応して、基板11側に拡大,縮小,スクロール等の機能を有する様にしてもよい。
In FIG. 1, one substrate 11 is used, but a structure in which two or more glass sensors for detecting a pressing position and a cover glass (cover substrate) are attached may be used.
In the case of the OGS system, the base plate 11 serves as a touch panel base.
Various functional films such as anti-glare, anti-reflection, and anti-fouling can be bonded to the surface of the base material 11.
Further, a function such as enlargement, reduction, and scrolling may be provided on the substrate 11 side corresponding to the surface of the liquid crystal display unit 12.

10 タッチ操作パネル
11 基材
11a 延出部
12 液晶表示部
13a 振動子
14a タッチ操作部
15a タッチ操作部
Reference Signs List 10 touch operation panel 11 base material 11a extension part 12 liquid crystal display part 13a vibrator 14a touch operation part 15a touch operation part

Claims (3)

液晶表示部と、前記液晶表示部の表面に貼合された基材とを備え、
前記基材は前記液晶表示部の外縁から外側に延出した延出部を有し、
前記延出部の表面にタッチ操作部を配設し前記延出部の裏面に振動子を配設してあることを特徴とするタッチ操作パネル。
A liquid crystal display unit, comprising a substrate bonded to the surface of the liquid crystal display unit,
The base material has an extending portion extending outward from an outer edge of the liquid crystal display portion,
A touch operation panel, wherein a touch operation unit is disposed on a surface of the extension unit, and a vibrator is disposed on a back surface of the extension unit.
前記基材はカバー基材又はタッチパネル基材であることを特徴とする請求項1記載のタッチ操作パネル。   The touch operation panel according to claim 1, wherein the substrate is a cover substrate or a touch panel substrate. 前記振動子は前記延出部の裏面に貼付された圧電素子であることを特徴とする請求項1又は2記載のタッチ操作パネル。   The touch operation panel according to claim 1, wherein the vibrator is a piezoelectric element attached to a back surface of the extension.
JP2018149008A 2018-08-08 2018-08-08 Touch operation panel Pending JP2020024590A (en)

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