JPS62232827A - Operation panel driver with lighting device - Google Patents
Operation panel driver with lighting deviceInfo
- Publication number
- JPS62232827A JPS62232827A JP7499786A JP7499786A JPS62232827A JP S62232827 A JPS62232827 A JP S62232827A JP 7499786 A JP7499786 A JP 7499786A JP 7499786 A JP7499786 A JP 7499786A JP S62232827 A JPS62232827 A JP S62232827A
- Authority
- JP
- Japan
- Prior art keywords
- matrix
- switch
- operation panel
- circuit
- led
- 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
- 239000011159 matrix material Substances 0.000 claims description 27
- 238000010586 diagram Methods 0.000 description 3
- LFVLUOAHQIVABZ-UHFFFAOYSA-N Iodofenphos Chemical compound COP(=S)(OC)OC1=CC(Cl)=C(I)C=C1Cl LFVLUOAHQIVABZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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) [Summary] 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、電子様器のＬＥＤ表示付操作パネルに用いる
スイッチ検知回路とＬＥＤ点で回路とをす６えた照光素
子付操作パネル駆動回路に関づるものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an operation panel driving circuit with an illuminating element, which includes a switch detection circuit and an LED point circuit for use in an operation panel with an LED display of an electronic device. It is something.
従来の技術
近年、機器の電子化が急伸１Ｊる中で、操作パネルにお
いては、多機能電話器などにみられるＪ、うにキー人力
部へＬＥＤを付加して、使用キーを表示できるパネルス
イッチが要望されている。このようなパネルの駆動回路
は、従来たとえば第４図の回路のように、キーマトリク
ス・ＬＥＤ７１−リクスドライバー１１のドライブライ
ンＡ、Ｂ、Ｃを共用し、キーマトリクスレシーバ−１２
のレシーブラインＤ、Ｅ、Ｆと、Ｌ ｉＥ Ｄマトリク
スのもう一方のドライバー１３のドライブラインＧ、Ｈ
，Ｉを別ラインで構成していた。ここで１４はｌ：−マ
トリクス、１５はＬ Ｅ Ｄマトリクス、１６はＬＥＤ
電流制限抵抗である。Background of the Invention In recent years, with the rapid increase in the computerization of devices, panel switches that can display the keys in use have been developed by adding LEDs to the keypads found in multi-function telephones and other devices. It is requested. Conventionally, a drive circuit for such a panel, as in the circuit shown in FIG.
receive lines D, E, F, and drive lines G, H of the other driver 13 of the LiE D matrix.
, I were configured on separate lines. Here, 14 is l:-matrix, 15 is LED matrix, and 16 is LED
It is a current limiting resistor.
従来、第４図に示す回路におけるキースキャンとＬＥＤ
スキトンのタイミングは、第５図に示すようになってい
た。すなわち、キーマトリクス・ＬＥＤマトリクスドラ
イブスキャンは、アクティブＬｏｖにて常時一定の時間
をおいてスキャンを行ない、上記スキャンラインに対す
るキーの検索を、キーマトリクス受信ラインとしてのレ
シーブラインＤ、Ｅ、Ｆにて行なっていた。ＬＥＤの点
灯は、上記レシーブラインＤ、Ｅ、Ｆに対し、指定した
Ｌ Ｅ Ｄマトリクスドライバー１３のラインＧ、ｌ＋
。Conventionally, key scan and LED in the circuit shown in Fig. 4
The skidding timing was as shown in Figure 5. That is, in the key matrix/LED matrix drive scan, scanning is always performed at the active LOV after a certain period of time, and the key search for the above scan line is performed on the receive lines D, E, and F as the key matrix receiving lines. I was doing it. The LEDs are lit on the lines G, l+ of the specified LED matrix driver 13 for the above receive lines D, E, and F.
.
１をスキャンの間のみｔｌｉｇｈにしておくことにより
、指定したＬＥＤのｊａ［ができるようになっていた。By setting 1 to tligh only during scanning, it was possible to perform ja[ of the specified LED.
発明が解決しようとする問題点
しかしながら、上記のような従来の＠成においては、キ
ーマトリクス１４とＬＥＤマトリクス１５の駆動に対し
３系統の送受信ラインＡ・・・夏が必要で、キー数が多
く、キーピッチが高密度になるにつれてパターンの引き
まわしが困難となり、パターン設計に膨大な時間を必要
としていた。Problems to be Solved by the Invention However, in the conventional @ configuration as described above, three systems of transmitting/receiving lines A are required for driving the key matrix 14 and the LED matrix 15, and the number of keys is large. As the key pitch became denser, it became difficult to route the pattern, and pattern design required a huge amount of time.
そこで本発明はこのような問題点を解決し、キーピッチ
を高密邸にしてもパターンの引きまわしを容易に行なえ
るようにすることを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to make it possible to easily route patterns even if the key pitch is set to a high density.
問題点を解決するための手段
上記問題点を解決するため本発明もよ、発光ダイオード
とスイッチ回路とを並列に接続してマトリクスの中位構
成部を形成したものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention also includes a light emitting diode and a switch circuit connected in parallel to form an intermediate component of a matrix.
作用
上記の構成とすることにより、キーマトリクスとＬＥＤ
マトリクスを共用することができ、２系統の送受信ライ
ンのみで、従来と聞苦のｕ１能を持たせることができる
。Effect By having the above configuration, the key matrix and LED
The matrix can be shared, and with only two transmitting/receiving lines, it is possible to provide the U1 function, which is difficult compared to the conventional method.
実施例
以下、本発明の実施例を第１図〜第３図により説明する
。EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 to 3.
第１図は本発明の一実施例で、回路上の各単位構成部２
１は、スイッチ２２とこのスイッチ２２に直列に配置さ
れたダイオード２３とを有したスイッチ回路２４を具備
するとともに、このスイッチ回路２４に対し並列に、か
つダイオード２３と逆方向に接続された光光ダイオード
（Ｌ Ｅ Ｄ ） ２５を具備している。FIG. 1 shows an embodiment of the present invention, in which each unit component 2 on the circuit
1 includes a switch circuit 24 having a switch 22 and a diode 23 arranged in series with the switch 22, and an optical circuit 24 connected in parallel with the switch circuit 24 and in the opposite direction to the diode 23. A diode (LED) 25 is provided.
これらの単位構成部２１が７トリクス状に配置されてい
る。２６はキーマトリクス・ＬＥＤマトリクスドライバ
ー、２７は１・Ｏポート、２８はＬＥＤ電流ｆｆ、ＩＪ
限低抵抗２９はキースキトン用プルアップ抵抗である。These unit components 21 are arranged in a 7-trix pattern. 26 is key matrix/LED matrix driver, 27 is 1/O port, 28 is LED current ff, IJ
The low limit resistor 29 is a pull-up resistor for the key kit.
第２図は上記キーマトリクスのタイミングチャー１〜を
示し、キーマトリクス・ＬＥＤマトリクスドライバー２
６の出力略よ、キースキャンの場合アクティブｌｏｗに
てスキャンを行い、このときの１・Ｏボート２７は入力
モードとし、キーマトリクス・ｉ Ｅ Ｄマトリクスド
ライバー２６の出力がＬｏｗで、■・Ｏポート２７の入
力がＩＯＷの場合をスイッチ０Ｎ１１−Ｏポート２７の
入力がＩｌｉｇｈの場合はスイッチＯＦＦと判定する。FIG. 2 shows the timing charts 1 to 1 of the above key matrix, and the key matrix/LED matrix driver 2.
The output of 6 is omitted. In the case of key scan, the scan is performed at active low, and at this time, the 1/O port 27 is in input mode, the output of the key matrix/iED matrix driver 26 is low, and the ■/O port When the input of the switch 27 is IOW, it is determined that the switch is OFF, and when the input of the switch 0N11-O port 27 is Ilight, it is determined that the switch is OFF.
ただし、このときのＬＥＤ２５は、逆バイアスになるの
で点燈しない。ＬｔｌＥＤスキャンの場合は、４−マト
リクス・し〔Ｄマトリクスドライバー２７の出力はアク
ディプｌｌｉｇｈとし、１・０ボー１−２７４１出力モ
ードとする。キーマトリクス・ＬＥＤ７トリクスドライ
バー２６の出力がｌＩｉｇｈでＩ−Ｏボート２７の出力
がｌＩｉｇｈの場合にＬＥＤ２５は消燈となり、１・Ｏ
ポート２７の出力がｌｏｗの場合のみＬ Ｅ Ｄ ２５
４よ点灯する。ＬＥＤ２５を単位構成部２１に６う一つ
追加する場合は、バッファラインの追加により容易に実
現できる。However, the LED 25 at this time is not lit because it is reverse biased. In the case of LtlED scan, the output of the D matrix driver 27 is set to 1.0 baud 1-2741 output mode, and the output of the D matrix driver 27 is set to 1.0 baud. When the output of the key matrix/LED 7 trix driver 26 is lIigh and the output of the I-O boat 27 is lIigh, the LED 25 turns off, and the 1/O
L E D 25 only when the output of port 27 is low
4. Lights up. When six LEDs 25 are added to the unit component 21, this can be easily achieved by adding a buffer line.
第３図は本発明の別実施例で、各１１１位構成部２１は
、スイッチ２２とこのスイッチ２２に直列に配置された
Ｍ（ＦＬ３０とを有したスイッチ回路２４を具備すると
ともに、このスイッチ回路２４に対し並列に接続された
発光ダイオード（Ｌ Ｅ Ｄ ＞ ２５を具備している
。これらの単位構成部２１が４゛−マトリクス状に配置
されている。ただし、この構成においては、スイッチＯ
Ｎ時に抵抗３０によりＬ Ｅ Ｉ） ２５の両端が接続
されてし状うので、抵抗３０の抵抗１ｎは十分大さ゛な
値とする必要がある。また、ＬＥＤ制限抵抗２８、キー
スキャン用プルアップ抵抗２９および抵抗３０の抵抗値
を、それぞれＲｔ 、Ｒ２、Ｒ１とづると、Ｒｔ Ｃ
ＲＩ ＜Ｒ２
なる関係が要求される。FIG. 3 shows another embodiment of the present invention, in which each 111th-order component 21 is equipped with a switch circuit 24 having a switch 22 and an M (FL 30) arranged in series with the switch 22. 24 is provided with light emitting diodes (LED > 25) connected in parallel to the unit components 21. These unit components 21 are arranged in a 4'-matrix.
Since both ends of L E I ) 25 are connected by the resistor 30 at the time of N, the resistance 1n of the resistor 30 needs to have a sufficiently large value. Furthermore, if the resistance values of the LED limiting resistor 28, key scan pull-up resistor 29, and resistor 30 are respectively written as Rt, R2, and R1, then Rt C
The relationship RI < R2 is required.
上記構成による動作は、第２図のタイミングヂャートと
同様となる。The operation with the above configuration is similar to the timing chart in FIG. 2.
ブを明の効果
以上のように本発明によれば、キーマ１〜リクスとＬ
Ｅ Ｄマトリクスが共用できるので、パターンの引きま
わしが容易となり、従来の３系統の送受信ラインを有り
る回路構成に比ベキーピツヂを高密度にすることができ
る。According to the present invention, keyma 1 to
Since the ED matrix can be shared, patterns can be easily routed, and the frequency density can be increased compared to the conventional circuit configuration with three transmission/reception lines.
４、図面のｆｌ？ｌ ｌｉｌな説明
第１図は本発明をダイオードを用いて構成した実施例を
示づ図、第２図は第１図の実施例のタイミングヂト一ト
を示す図、第３図は本発明を抵抗を用いて構成した実施
例を示す図、第４図は従来のマｉ・リクス構成を示す図
、第５図は第４図の従来例のタイミングヂャートを示づ
図である。4. Fl of the drawing? l lil explanation Fig. 1 shows an embodiment of the present invention using diodes, Fig. 2 shows a timing chart of the embodiment of Fig. 1, and Fig. 3 shows the embodiment of the present invention. 4 is a diagram showing a conventional i-mix configuration, and FIG. 5 is a diagram showing a timing diagram of the conventional example of FIG. 4.
２１・・・単位構成部、２２・・・スイッチ、２３・・
・ダイオード、２４・・・スイッチ回路、２５・・・発
光ダイオード（Ｌ［ＥＤ）、３０・・・抵抗
代理人 森 木 残 弘
第１ 函
２ｒ−４１／ｃ、 ダイ オーと”（ＬεＤ）第２図
第３図
第４図
箇５図21...Unit component, 22...Switch, 23...
・Diode, 24...Switch circuit, 25...Light emitting diode (L[ED), 30...Resistor agent Figure 2 Figure 3 Figure 4 Section 5
Claims (1)
マトリクスの単位構成部を形成したことを特徴とする照
光素子付操作パネル駆動回路。 ２、スイッチ回路は、スイッチと、発光ダイオードと逆
方向に配置されて前記スイッチに直列に接続されたダイ
オードとを有することを特徴とする特許請求の範囲第１
項記載の照光素子付操作パネル駆動回路。 ３、スイッチ回路は、スイッチと抵抗との直列回路にて
構成されていることを特徴とする特許請求の範囲第１項
記載の照光素子付操作パネル駆動回路。 ４、複数の単位構成部をマトリクス状に配置してマトリ
クスドライバーとＩ・Ｏポートに接続したことを特徴と
する特許請求の範囲第１項から第３項までのいずれかに
記載の照光素子付操作パネル駆動回路。[Scope of Claims] 1. An operation panel drive circuit with a lighting element, characterized in that a light emitting diode and a switch circuit are connected in parallel to form a unit component of a matrix. 2. Claim 1, wherein the switch circuit includes a switch and a diode arranged in a direction opposite to a light emitting diode and connected in series to the switch.
An operation panel drive circuit with a lighting element as described in . 3. The operation panel drive circuit with a lighting element according to claim 1, wherein the switch circuit is constituted by a series circuit of a switch and a resistor. 4. With a lighting element according to any one of claims 1 to 3, characterized in that a plurality of unit components are arranged in a matrix and connected to a matrix driver and an I/O port. Operation panel drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7499786A JPS62232827A (en) | 1986-03-31 | 1986-03-31 | Operation panel driver with lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7499786A JPS62232827A (en) | 1986-03-31 | 1986-03-31 | Operation panel driver with lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62232827A true JPS62232827A (en) | 1987-10-13 |
Family
ID=13563418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7499786A Pending JPS62232827A (en) | 1986-03-31 | 1986-03-31 | Operation panel driver with lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62232827A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7026756B2 (en) | 1996-07-29 | 2006-04-11 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device with blue light LED and phosphor components |
| JP2011090320A (en) * | 2010-11-26 | 2011-05-06 | Semiconductor Energy Lab Co Ltd | Semiconductor device |
| US8373694B2 (en) | 2002-03-06 | 2013-02-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor integrated circuit and method of driving the same |
| US9196800B2 (en) | 1996-06-26 | 2015-11-24 | Osram Gmbh | Light-radiating semiconductor component with a luminescence conversion element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847932B2 (en) * | 1976-02-10 | 1983-10-25 | 新東工業株式会社 | Film feeding device in vacuum mold making equipment |
-
1986
- 1986-03-31 JP JP7499786A patent/JPS62232827A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847932B2 (en) * | 1976-02-10 | 1983-10-25 | 新東工業株式会社 | Film feeding device in vacuum mold making equipment |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9196800B2 (en) | 1996-06-26 | 2015-11-24 | Osram Gmbh | Light-radiating semiconductor component with a luminescence conversion element |
| US7855092B2 (en) | 1996-07-29 | 2010-12-21 | Nichia Corporation | Device for emitting white-color light |
| US7362048B2 (en) | 1996-07-29 | 2008-04-22 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device with blue light led and phosphor components |
| US7901959B2 (en) | 1996-07-29 | 2011-03-08 | Nichia Corporation | Liquid crystal display and back light having a light emitting diode |
| US7329988B2 (en) | 1996-07-29 | 2008-02-12 | Nichia Corporation | Light emitting device with blue light LED and phosphor components |
| US7915631B2 (en) | 1996-07-29 | 2011-03-29 | Nichia Corporation | Light emitting device and display |
| US7531960B2 (en) | 1996-07-29 | 2009-05-12 | Nichia Corporation | Light emitting device with blue light LED and phosphor components |
| US7682848B2 (en) | 1996-07-29 | 2010-03-23 | Nichia Corporation | Light emitting device with blue light LED and phosphor components |
| US7071616B2 (en) | 1996-07-29 | 2006-07-04 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device with blue light led and phosphor components |
| US7215074B2 (en) | 1996-07-29 | 2007-05-08 | Nichia Corporation | Light emitting device with blue light led and phosphor components |
| US7126274B2 (en) | 1996-07-29 | 2006-10-24 | Nichia Corporation | Light emitting device with blue light LED and phosphor components |
| US7026756B2 (en) | 1996-07-29 | 2006-04-11 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device with blue light LED and phosphor components |
| US7968866B2 (en) | 1996-07-29 | 2011-06-28 | Nichia Corporation | Light emitting device and display |
| US7969090B2 (en) | 1996-07-29 | 2011-06-28 | Nichia Corporation | Light emitting device and display |
| US8148177B2 (en) | 1996-07-29 | 2012-04-03 | Nichia Corporation | Light emitting device and display |
| US9130130B2 (en) | 1996-07-29 | 2015-09-08 | Nichia Corporation | Light emitting device and display comprising a plurality of light emitting components on mount |
| US8373694B2 (en) | 2002-03-06 | 2013-02-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor integrated circuit and method of driving the same |
| JP2011090320A (en) * | 2010-11-26 | 2011-05-06 | Semiconductor Energy Lab Co Ltd | Semiconductor device |
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