JPS61262835A - Picture terminal equipment - Google Patents

Picture terminal equipment

Info

Publication number
JPS61262835A
JPS61262835A JP60102970A JP10297085A JPS61262835A JP S61262835 A JPS61262835 A JP S61262835A JP 60102970 A JP60102970 A JP 60102970A JP 10297085 A JP10297085 A JP 10297085A JP S61262835 A JPS61262835 A JP S61262835A
Authority
JP
Japan
Prior art keywords
electrodes
recording medium
liquid crystal
impressed
effect characteristic
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
JP60102970A
Other languages
Japanese (ja)
Inventor
Shuji Iwata
修司 岩田
Akihiro Watanabe
昭裕 渡辺
Masakado Nakada
中田 正矩
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP60102970A priority Critical patent/JPS61262835A/en
Publication of JPS61262835A publication Critical patent/JPS61262835A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To form a picture input part and an output part integrally by supplying two types of signals having different time widths to electrodes installed on both surfaces of a recording medium where a substance having a photoelectric effect characteristic is sealed between flat glasses. CONSTITUTION:When a voltage necessary for changing the molecule orientation of a liquid crystal having the electric field optical effect characteristic is impressed on the electrodes 2 and 3, the color of the liquid crystal 10 of the part held by the electrodes 2 and 3 changes emulsive, and functions as picture information. When an input detecting signal which does not cause the molecule orientation to change because of a short time width is impressed on the electrodes 2 and 3, rotary magnetic fields corresponding to said impression are generated in the vicinity of the electrodes. Here, when a sensor embedded by the substance having the electromagnetic induction effect characteristic approaches the electrodes, detection voltages corresponding to the rotary magnetic fields are outputted from the sensor 7. When the outputs are sequentially compared in synchronizing with the input detecting signal impressed on the electrodes 2 and 3, the intersection between the electrodes 2 and 3 can be sensed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は電子計算機とその操作者との対話の手段とし
ての画像端末装置の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an improvement in an image terminal device as a means of interaction between a computer and its operator.

〔従来の技術〕[Conventional technology]

電子計算機との間で文字、記号、図形等の画像情報の入
出力を行なう端末装置としては、各種の分野で種々の構
成のものが考えられ用いられている。
2. Description of the Related Art As terminal devices for inputting and outputting image information such as characters, symbols, and graphics to and from electronic computers, terminal devices with various configurations have been considered and used in various fields.

これらの装置の代表的なものとしては、陰極線管(CR
T)とタブレットとを組み合わせたもの、及びCRTと
ライトペンとを組み合わせたものがよく知られている。
A typical example of these devices is a cathode ray tube (CR).
A combination of a T) and a tablet, and a combination of a CRT and a light pen are well known.

〔この発明が解決しようとする問題点1上述の従来の装
置の内のCRTとタブレットとを組み合わせたものは比
較的高価であり、CRTとタブレットとが物理的に離れ
た場所に置かれているので、CRTに映し出されている
画rI!の位置とタブレット上の位置との位置合わせが
一体的な感覚で付なわれにくいという欠点があり、CR
Tとライトベンとを組み合わせたものは、CRTの前面
のガラスが厚いので、OE、 Tに映し出されている画
像上の所望点へのライトペンの位置合わせが容易でない
とbう問題点を有して匹る。
[Problem to be Solved by the Invention 1 Among the above-mentioned conventional devices, those that combine a CRT and a tablet are relatively expensive, and the CRT and tablet are physically located in separate locations. So, the image displayed on the CRT! CR has the disadvantage that it is difficult to align the position of
The combination of T and light pen has the problem that the front glass of the CRT is thick, so it is not easy to align the light pen to a desired point on the image displayed on the OE and T. It's worth it.

との余量はこのような問題点を解消するためになされた
もので、画像入力部と出力部とを一体化し、簡単な構成
で、しかも画像入力の位置精度の高い画像端末装置を得
ることを目的とする。
The purpose of this invention was to solve these problems by integrating an image input section and an output section to obtain an image terminal device with a simple configuration and high positional accuracy for image input. With the goal.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

この余明に係る画像端末装置では電気光学効果特性を有
する物質を平板ガラス間に封入した記録媒体の両面に互
いに直交する電極をそれぞれ設け、これらの電極に計算
機からの出力用と計算機への入力用の2糧類の信号を供
給できる駆動回路と各tit (tに流れる電流による
磁界を検出するセンサとを設けたものである。
In this image terminal device according to Yumei, electrodes perpendicular to each other are provided on both sides of a recording medium in which a substance having electro-optic effect characteristics is sealed between flat glass plates, and these electrodes are used for output from a computer and for input to the computer. The device is equipped with a drive circuit that can supply two types of signals for each tit (t) and a sensor that detects the magnetic field caused by the current flowing through each tit (t).

〔作用〕[Effect]

この余量では記録媒体の両電極に供給する信号の種類に
よって、入力モードの動作と出力モードの動作が可能で
、出力モードでは画像表示装置として働き、入力モード
ではタブレット装置とじて働く。すなわち画f象出力部
と画像入力部とが一体化さt″1.るので、表示位置の
精度を高く、しかも誤入力をなくすることができる。
Depending on the type of signal supplied to both electrodes of the recording medium, this surplus capacity can operate in an input mode or an output mode; in the output mode it functions as an image display device, and in the input mode it functions as a tablet device. In other words, since the image output section and the image input section are integrated, it is possible to increase the accuracy of the display position and eliminate erroneous input.

〔実施例] 第1図はとの余量の一実施例の構成図、第2図はこの実
施例に用する記録媒体の@成を示す断面図で、(1)は
電界光学効果特性を有する液晶00と、この液晶00を
封じるシール材01)及び両面のガラス(IJ 、 (
13とからなる記録媒体、(2)は媒体(1)の一方の
ガラス板04の面に被着された電極、(3)は媒体(1
)の他方のガラス板03の面に上記電vi(2)と直交
するように被着された電極、(4)及び(5)はそれぞ
れ°K Ffi−(2)及び(3)に接続される電動回
路、(6)は制御回路である。
[Example] Figure 1 is a block diagram of an example of the remaining amount, and Figure 2 is a sectional view showing the structure of the recording medium used in this example. A liquid crystal 00 having a liquid crystal 00, a sealing material 01 for sealing this liquid crystal 00) and glass on both sides (IJ, (
13, (2) is an electrode adhered to the surface of one glass plate 04 of the medium (1), and (3) is a recording medium consisting of the medium (1).
), the electrodes (4) and (5) are attached to the other glass plate 03 in such a way that they are perpendicular to the electric vi (2), and are connected to °K Ffi- (2) and (3), respectively. (6) is a control circuit.

媒体(1)内に封入さね、だ液晶(1()け大きい電界
光学効果特性を有しているので、駆動回路(4) 、 
(5)の出力信号は小さくてよく、駆動回路(4) 、
 (5)の(黄謂は簡単なものでよい。電ti (2>
 、 (3)はネサ換や工TO(インジウム・スズ酸化
物)の透明導電llの、または各屯隋のそれぞれのガラ
ス板((功、03上での被着間隔長より十分小さい幅の
アルミニウム蒸着嘆などによ多構成される。駆動(ロ)
路(4) 、 (5)は、接続される各軍fi (2)
、 (3)に選択的に所定の駆動電圧を印加する。制御
回路(6)は、各電極(21、(3)にそれぞれ回路(
4) 、 (5)から順次信号を印加できるよう制御す
る。
Since the liquid crystal (1) enclosed in the medium (1) has a large electro-optical effect characteristic, the driving circuit (4),
The output signal of (5) may be small, and the drive circuit (4),
In (5), a simple explanation is enough.Electronic Ti (2>
, (3) is a transparent conductive material made of Nessa or TO (indium tin oxide), or each glass plate of each tun ((Ingredients, aluminum with a width sufficiently smaller than the deposition interval length on 03). It is composed of many things such as vapor deposition etc. Drive (b)
Paths (4) and (5) are each connected army fi (2)
, (3) selectively applying a predetermined driving voltage. The control circuit (6) connects each electrode (21, (3) with a circuit (
4) Control so that signals can be applied sequentially from (5).

センサ(7)は、各電極(2) 、 (3)に流れる電
流によって生じる回転磁界を感知し、電気@号に変換す
る部分であって、磁気抵抗素子や誘導コイルなどで構成
される。増幅部(8)は、センサ(7)からの信号を所
定の大きさの電圧に変換する。
The sensor (7) is a part that senses the rotating magnetic field generated by the current flowing through each electrode (2), (3) and converts it into an electric signal, and is composed of a magnetoresistive element, an induction coil, and the like. The amplifier (8) converts the signal from the sensor (7) into a voltage of a predetermined magnitude.

このように構成された装置は、各電極(2) 、 (3
)に印加する駆動回路(4) 、 (5)からの信号の
時間幅により出力モードと入力モードとに分けられる。
In the device configured in this way, each electrode (2), (3
) is divided into an output mode and an input mode depending on the time width of the signals from the drive circuits (4) and (5).

出力モードでは、画像表示装置として働き、入力モード
は、タブレット装置として働く。
In the output mode, it works as an image display device, and in the input mode, it works as a tablet device.

第3図は、各電極(2) 、 (3)に印加される信号
の種類を示す図であって、表示駆動色好Sr+ut  
と入力検出信号Sinが周期的、または規則的に駆動回
路(4) 、 (5)から出力される。この信号の出力
により出力モードと入力モードとが仕分けられる。まず
、出力モードについて説明する。
FIG. 3 is a diagram showing the types of signals applied to each electrode (2) and (3), and shows the display drive color difference Sr+ut
and input detection signal Sin are periodically or regularly outputted from the drive circuits (4) and (5). The output mode and input mode are distinguished by outputting this signal. First, the output mode will be explained.

液晶01は、電極間(2)、 (3)に電圧を印加し、
その電位差V、が液晶i1iの分子配向の変化するのに
必要なしきい値vthより十分大きく、かつ、表示駆動
色8′SOはtが分子配向の変化する時間より十分長い
時間幅のものであれば、電tili(2) 、 (3)
に挾まれた部分の液晶00が乳濁色に変化し、いわゆる
、選択された画素になる。選択されない画素の電1i 
(2) 、 +3)での電位差V、け、V、 −Vい〈
0になっており、その部分は、透明色のままである。こ
のように各電圧をtfi 極(2) 、 +3)に選択
的に印加することにより、光を透過、または、散乱させ
ることができ画像情報として機能する。
Liquid crystal 01 applies voltage between electrodes (2) and (3),
The potential difference V is sufficiently larger than the threshold value vth necessary for the molecular orientation of liquid crystal i1i to change, and the display drive color 8'SO has a time width t that is sufficiently longer than the time for the molecular orientation to change. If, electric tili (2), (3)
The portion of the liquid crystal 00 sandwiched between the two changes to a milky color and becomes a so-called selected pixel. Electricity 1i of unselected pixels
(2) , +3) potential difference V, ke, V, −V〈
0, and that part remains transparent. By selectively applying each voltage to the tfi poles (2) and +3) in this manner, light can be transmitted or scattered and function as image information.

次に入力モードについて説明する。Next, the input mode will be explained.

液晶Onは電極(2) 、 (3)間に電圧を印加し、
仮にそれが、■、−vth〉0であっても印加時間が液
晶01の分子配向の変化に要する時間より十分短かく、
かつ、その印加信号の印加間隔が、分子配向の変化に要
する時間より十分長ければ完全な分子配向の変化は起り
得す、画素は透明色のままである。
Liquid crystal On applies voltage between electrodes (2) and (3),
Even if ■, -vth〉0, the application time is sufficiently shorter than the time required to change the molecular orientation of liquid crystal 01,
Moreover, if the application interval of the applied signal is sufficiently longer than the time required for a change in molecular orientation, a complete change in molecular orientation can occur, and the pixel remains transparent.

つまり、入力検出信号B□1.の印加時間幅を数μ8以
下であったり、その繰返し間隔Tinpが平均数百m6
以上であればこのイ18によって分子配列の変化はない
。さて、このような入力検出山号Siユを制御回路(6
)の制御により各市1i (2) 、 (3)に順次印
加してゆくと、各市ti(2) 、 (3)の周辺には
、それに対応して回転磁界が余生する。そこで、゛ボ磁
誘導効果特性を有した物質を埋めこんだセンサ(7)を
そこに近づければ、センサ(7)からは回転磁界に対応
する検出電圧が出力される。これを、増幅器(8)に導
き、適当な大きさの電圧に増幅する。そして、この増幅
器(8)の出力信号を各電極(2) 、 (3)に印加
する入力検出信号S1nのタイミングに同期して順次比
較してゆくことによって、電極(2)と電極(3)との
交点位置をセンサできる。
In other words, input detection signal B□1. The application time width is several μ8 or less, and the repetition interval Tinp is several hundred m6 on average.
If the above is the case, there will be no change in the molecular arrangement due to A18. Now, the control circuit (6
) is applied sequentially to each city 1i (2), (3), a corresponding rotating magnetic field remains around each city 1i (2), (3). Therefore, when a sensor (7) embedded with a material having a magnetic induction effect characteristic is brought close to the sensor (7), a detection voltage corresponding to the rotating magnetic field is outputted from the sensor (7). This is led to an amplifier (8) and amplified to an appropriate voltage. By sequentially comparing the output signal of this amplifier (8) in synchronization with the timing of the input detection signal S1n applied to each electrode (2) and (3), The intersection position can be detected.

第4図はこの宅間に用いる記録媒体の他の例を示す断面
図で、第2図に示した媒体の両表面ガラス02及び03
の上にそねぞれ偏光板(+41及び00をはり合わせた
ものである。偏光板04)、θυの液晶01との重ね合
わせは、表示画像がポジティブかネガティブかによって
、偏光方向を液晶00の初期配向と直交またけ+行にな
るようにすれはよい。なお、この例では透過形の表示装
時の場合で、光りを出す光源は目Eとは反対側に置くが
、反射形の表示装置を実現するには、目Eと反対IH1
1の偏光板04)K反射板を貼り、光源を目Eと同一側
に置けばよい。
FIG. 4 is a cross-sectional view showing another example of a recording medium used in this home, with glass 02 and 03 on both surfaces of the medium shown in FIG.
A polarizing plate (+41 and 00 is glued on top of each other.Polarizing plate 04) is superimposed on the θυ liquid crystal 01 depending on whether the displayed image is positive or negative. It is good to have a line that spans orthogonal to the initial orientation of . Note that in this example, when using a transmissive display device, the light source that emits light is placed on the opposite side of the eye E, but in order to realize a reflective display device, the light source that emits light is placed on the opposite side of the eye E and IH1.
1 polarizing plate 04) A K reflective plate may be attached and the light source placed on the same side as the eye E.

また、媒体01のガラス板の上にK % (2) 、 
(3)に対応したパターンの3色フィルタを被着させれ
ば、簡単にカラー画像に関する入出力機能をもつ画f象
表示端末装置が得られる。
Also, on the glass plate of medium 01, K % (2),
If a three-color filter with a pattern corresponding to (3) is applied, an image display terminal device having input/output functions for color images can be easily obtained.

1@明の効果〕 以北のように、この全問では画像入力部と画像出力部と
が一体化されるので、表示位置の精度が高く、しかも誤
入力の々い画r象端末装■が実現できる。また、入力機
能と出力機能との実現のだめの特別のデバイスを用意す
ることなく、若干の駆動回路及び検出回路の追加と、コ
本のセンサを用意するだけでよく装置が簡単になる。
1 @ Light effect] As mentioned above, the image input section and image output section are integrated in all questions, so the accuracy of display position is high, and the image r image terminal system is less prone to input errors. can be realized. Furthermore, the device can be simplified by simply adding a few drive circuits and detection circuits and preparing a few sensors, without having to prepare special devices for realizing input and output functions.

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

第1図はこの余量の一実施例の構成図、第2図はこの実
施例に用する記録媒体の構成を示す断面図、第3図は電
極駆動イ1号波形の一例を示す図、第4図はこの路間に
用いる記録媒体の他の例を示す断面図である。 図において、(])は記録媒体、+2) 、 (3)は
線状電極、(4) 、 (5)は駆動回路、(7)けセ
ンサ、0り、0′3はガラスモ板である。 なお、図中同一符号は同一または相当部分を示すO
FIG. 1 is a configuration diagram of an example of this surplus amount, FIG. 2 is a sectional view showing the configuration of a recording medium used in this example, and FIG. 3 is a diagram showing an example of the electrode drive No. 1 waveform. FIG. 4 is a sectional view showing another example of a recording medium used between the paths. In the figure, (]) is a recording medium, +2) and (3) are linear electrodes, (4) and (5) are drive circuits, (7) is a sensor, and 0 and 0'3 are glass plates. In addition, the same reference numerals in the figures indicate the same or corresponding parts.

Claims (2)

【特許請求の範囲】[Claims] (1)電気光学効果特性を有する物質を2枚のガラス平
板間の空間に封入してなり、上記各ガラス平板の表面に
互いに直交する線状電極がそれぞれ形成された記録媒体
、上記記録媒体への電子計算機からの画像情報の出力用
と上記電子計算機への上記記録媒体に記録されている画
像情報の入力用との2種類の信号を各上記線状電極に供
給する駆動回路、及び上記線状電極への上記駆動回路か
ら供給される信号電流によつて生ずる回転磁界を検出す
るセンサを備えた画像端末装置。
(1) A recording medium in which a substance having electro-optical effect characteristics is sealed in a space between two flat glass plates, and linear electrodes perpendicular to each other are formed on the surface of each flat glass plate, and the recording medium a drive circuit that supplies two types of signals to each of the linear electrodes, one for outputting image information from the computer and one for inputting image information recorded on the recording medium to the computer; and An image terminal device comprising a sensor that detects a rotating magnetic field generated by a signal current supplied from the drive circuit to the shaped electrode.
(2)記録媒体のガラス平板は表面に線状電極に対応し
て3色フィルタが被着されていることを特徴とする特許
請求の範囲第1項記載の画像端末装置。
(2) The image terminal device according to claim 1, wherein the glass flat plate of the recording medium has a three-color filter adhered to the surface thereof in correspondence with the linear electrodes.
JP60102970A 1985-05-15 1985-05-15 Picture terminal equipment Pending JPS61262835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60102970A JPS61262835A (en) 1985-05-15 1985-05-15 Picture terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60102970A JPS61262835A (en) 1985-05-15 1985-05-15 Picture terminal equipment

Publications (1)

Publication Number Publication Date
JPS61262835A true JPS61262835A (en) 1986-11-20

Family

ID=14341620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60102970A Pending JPS61262835A (en) 1985-05-15 1985-05-15 Picture terminal equipment

Country Status (1)

Country Link
JP (1) JPS61262835A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0414999A2 (en) * 1989-08-28 1991-03-06 Mitsubishi Denki Kabushiki Kaisha Display device with coordinate input function
US5465103A (en) * 1989-08-28 1995-11-07 Mitsubishi Denki Kabushiki Kaisha Display device with coordinate input function
US5854881A (en) * 1994-05-31 1998-12-29 Sharp Kabushiki Kaisha Coordinate detection device capable of detecting coordinates using display panel provided specially for display

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157339A (en) * 1981-03-24 1982-09-28 Fujitsu Ltd Coordinate input device with display function
JPS57176450A (en) * 1981-04-22 1982-10-29 Fujitsu Ltd Coordinate input device with display function

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157339A (en) * 1981-03-24 1982-09-28 Fujitsu Ltd Coordinate input device with display function
JPS57176450A (en) * 1981-04-22 1982-10-29 Fujitsu Ltd Coordinate input device with display function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0414999A2 (en) * 1989-08-28 1991-03-06 Mitsubishi Denki Kabushiki Kaisha Display device with coordinate input function
US5465103A (en) * 1989-08-28 1995-11-07 Mitsubishi Denki Kabushiki Kaisha Display device with coordinate input function
US5854881A (en) * 1994-05-31 1998-12-29 Sharp Kabushiki Kaisha Coordinate detection device capable of detecting coordinates using display panel provided specially for display

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