JPS6175423A - Display and input device - Google Patents

Display and input device

Info

Publication number
JPS6175423A
JPS6175423A JP59197173A JP19717384A JPS6175423A JP S6175423 A JPS6175423 A JP S6175423A JP 59197173 A JP59197173 A JP 59197173A JP 19717384 A JP19717384 A JP 19717384A JP S6175423 A JPS6175423 A JP S6175423A
Authority
JP
Japan
Prior art keywords
light
display panel
crystal display
light pen
liquid
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
Application number
JP59197173A
Other languages
Japanese (ja)
Inventor
Hiroshi Hasegawa
洋 長谷川
Yasuto Isozaki
康人 礒崎
Shunzo Oka
俊三 岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59197173A priority Critical patent/JPS6175423A/en
Publication of JPS6175423A publication Critical patent/JPS6175423A/en
Pending legal-status Critical Current

Links

Landscapes

  • Position Input By Displaying (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To perform both display and input operation by use of only one display panel by providing a light source behind a liquid-crystal display panel which has a translucent reflecting plate and photodetecting light transmitted through the panel by a light pen. CONSTITUTION:Light emitted by an electroluminescence panel or light emitting body 1 such as a flat plate type fluorescent lamp is transmitted through the translucent reflecting plate 2 of the liquid-crystal display panel 3, the liquid- crystal display panel 3, and a front polarizing plate 4 arranged when necessary and photodetected by a phototransistor 6, etc., provided to the light pen 5. The detected signal is led out as an input signal through a switch 7 provided to the light pen 5 and fed back to a liquid-crystal driving circuit (not shown in figure) at the same time, so that the point 8 where the switch 7 of the light pen 5 is pressed illuminates. The method of detecting the position where the input signal is generated by the light pen 5 from the timing of a display drive signal is used widely for a CRT, etc., and known.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は各種情報機器の入出力装置に関するものであり
、特に、単一のパネルで情報の表示と入力を同時に行う
ことのできる表示兼入力装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an input/output device for various information devices, and more particularly to a display/input device that can simultaneously display and input information on a single panel. It is something.

従来例の構成とその問題点 従来より、各種情報愼器の入力装置や出力装置としては
多くの方式のものが知られている。しかしながら、従来
これら入力装置と出力装置すなわち表示装置とは別個の
ものとして使用されている。2. Description of the Related Art Conventional Structures and Problems Many types of input devices and output devices for various information machines have been known in the past. However, conventionally, these input devices and output devices, ie, display devices, are used as separate devices.

このため、これら機器の操作者は例えばＣＲＴ等の表示
装置を眺めつつ、手許にあるタブレット、マウス等の入
力装置を操作するという繁帷な操作を必要としておシ、
この不自由さを解決するために表示装置と一体となった
入力装置が望まれてきた。この解決策の一手法として、
ＣＲＴの前面に透明なタッチパネルを設けるかあるいは
ライトペンによりＣＲＴに直接情報を書き込む等の手法
が行われてきたが、操作がわずられしく、長時間の作業
には不適当であった０ このため、机上に置いて入出力操作のできる平板上の表
示兼入力装置が望まれてきたが、未だ十分に満足できる
ものは作られていないのが現状であるＯ 発明の目的 それ故に、本発明の目的は手許に置いたまま操作するこ
とのできる平板状の表示兼入力装置を提供することであ
る。For this reason, operators of these devices are required to perform frequent operations such as viewing a display device such as a CRT while operating an input device such as a tablet or mouse at hand.
In order to solve this inconvenience, an input device integrated with a display device has been desired. As one method for this solution,
Methods such as installing a transparent touch panel on the front of the CRT or writing information directly onto the CRT using a light pen have been used, but these methods are cumbersome to operate and unsuitable for long hours of work. Therefore, there has been a desire for a flat panel display/input device that can be placed on a desk and perform input/output operations, but at present, a fully satisfactory display and input device has not yet been produced. The purpose of this is to provide a flat display/input device that can be operated while in hand.

発明の構成 この目的を達成するために本発明にかかる表示兼入力装
置は、半透明の反射板と、この半透明反射板の背後に光
源を有する液晶表示パネルと、上記光源よシ、上記液晶
表示パネルを通過した光を検知するための受光素子を有
するライトペンとからなることを特徴とするものである
０ すなわち、従来よｐｃＲＴ等の表示装置において、その
表示装置の発する光をライトペンで受光し、駆動のタイ
ミングから信号位置を検知する手法は広く行われている
が、液晶表示パネルの反射板を半透明にし、透過光を受
光素子を有するライトペ／で検知して同一液晶表示パネ
ルにフィードバックし入力するという表示兼入力装置と
いうものは未だ知られておらず、全く新しい概念である
。Structure of the Invention In order to achieve this object, a display/input device according to the present invention includes a semi-transparent reflecting plate, a liquid crystal display panel having a light source behind the semi-transparent reflecting plate, the above-mentioned light source, and the above-mentioned liquid crystal display panel. It is characterized by comprising a light pen having a light receiving element for detecting light passing through a display panel.0 In other words, conventionally, in a display device such as a PCRT, the light emitted by the display device is detected by a light pen. The method of receiving light and detecting the signal position from the driving timing is widely used, but it is also possible to make the reflective plate of the liquid crystal display panel semitransparent and detect the transmitted light with a light pen having a light receiving element to display the same liquid crystal display panel. A display/input device that provides feedback and input is not yet known and is a completely new concept.

本発明にかかる表示兼入力装置に使用できる表示パネル
としては、従来から知られている液晶表示パネルを挙げ
ることができる。液晶表示方式においては必ずしも反射
板を必要とはしない場合もあるが、明瞭なコントラスト
を得ようとすると反射板は必須であり、本発明にかかる
手法が有効に作用するものである。As a display panel that can be used in the display/input device according to the present invention, a conventionally known liquid crystal display panel can be cited. Although a reflective plate is not always necessary in a liquid crystal display system, a reflective plate is essential if clear contrast is to be obtained, and the method according to the present invention is effective.

実施例の説明 以下、本発明の一実施例につき図面により説明する０ 図において、エレクトロルミネツセ／スノくネルまたは
平板状壁光灯等の発光体１より発した光は液晶表示パネ
ル３０半透明反射板２、その液晶表示パネル３および必
要により配置された前面偏光板４を通過してライトペ／
６に設けられたフォトトランジスタ等の受光素子６にて
検知される０上記前面反射板４は液晶の表示方式によっ
ては必ずしも必要ではない０そして、１検知された信号
はライトペン５に設けられたスイッチ７を介して入力信
号として取出され、同時に液晶ドライブ回路（図示せず
）にフィードバックされることにより、ライトペン５の
スイッチ７が押された点８が点灯する。ここでライトペ
ン６から入力信号が発せられに位置を表示駆動信号のタ
イミングから検知する午法は、ＣＲＴ等で広く行われて
おり公知である。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The light beam passes through the reflector 2, its liquid crystal display panel 3, and the front polarizing plate 4 disposed as necessary.
0 is detected by a light receiving element 6 such as a phototransistor provided at 6. The front reflector 4 is not necessarily required depending on the display method of the liquid crystal. The signal is taken out as an input signal via the switch 7 and fed back to a liquid crystal drive circuit (not shown) at the same time, so that the point 8 of the light pen 5 where the switch 7 is pressed lights up. Here, the method of detecting the position of an input signal emitted from the light pen 6 from the timing of a display drive signal is widely used in CRTs and the like and is well known.

発明の効果 以上、述べたように従来は入力用と表示用の２種類の装
置を必要としていたものが、本発明では半透明の反射板
を有する液晶表示パネルの背後に光源を設け、パネルを
透過する光をライトペ／で受光することＫよシ、唯一枚
の表示パネルを用いるのみで表示と入力を行うことがで
きるものであシ、極めて安価な平板状の表示兼出力装置
が作られ、産業上の効果は大なるものである。Effects of the Invention As mentioned above, conventional devices required two types of devices, one for input and one for display, but in the present invention, a light source is provided behind the liquid crystal display panel having a translucent reflector, and the panel In addition to receiving the transmitted light with a light panel, display and input can be performed using only one display panel, and an extremely inexpensive flat display/output device has been created. The industrial effects are significant.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明にかかる表示兼入力装置の一実施例を示す概
念図である。 １・・・・・・光源（発光体）、２・・・・・・半透明
反射板、３・・・・・・液晶表示パネル、５・・−・・
・ライトペン、６・・・・・・受光素子。The figure is a conceptual diagram showing an embodiment of the display/input device according to the present invention. 1...Light source (light emitter), 2...Semitransparent reflector, 3...Liquid crystal display panel, 5...---
・Light pen, 6... Light receiving element.

Claims (1)

【特許請求の範囲】[Claims] 半透明の反射板と、この半透明反射板の背後に光源を有
する液晶表示パネルと、上記光源より上記液晶表示パネ
ルを通過した光を検知するための受光素子を有するライ
トペンとからなることを特徴とする表示兼入力装置。The light pen includes a semi-transparent reflector, a liquid crystal display panel having a light source behind the semi-transparent reflector, and a light-receiving element for detecting light transmitted from the light source through the liquid crystal display panel. Characteristic display and input device.
JP59197173A 1984-09-20 1984-09-20 Display and input device Pending JPS6175423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59197173A JPS6175423A (en) 1984-09-20 1984-09-20 Display and input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59197173A JPS6175423A (en) 1984-09-20 1984-09-20 Display and input device

Publications (1)

Publication Number Publication Date
JPS6175423A true JPS6175423A (en) 1986-04-17

Family

ID=16370006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59197173A Pending JPS6175423A (en) 1984-09-20 1984-09-20 Display and input device

Country Status (1)

Country Link
JP (1) JPS6175423A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7298367B2 (en) 2003-11-25 2007-11-20 3M Innovative Properties Company Light emitting stylus and user input device using same
US7348969B2 (en) 2003-12-30 2008-03-25 3M Innovative Properties Company Passive light stylus and user input device using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7298367B2 (en) 2003-11-25 2007-11-20 3M Innovative Properties Company Light emitting stylus and user input device using same
US7348969B2 (en) 2003-12-30 2008-03-25 3M Innovative Properties Company Passive light stylus and user input device using same

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