JPS62139584A - Led display unit - Google Patents
Led display unitInfo
- Publication number
- JPS62139584A JPS62139584A JP28132385A JP28132385A JPS62139584A JP S62139584 A JPS62139584 A JP S62139584A JP 28132385 A JP28132385 A JP 28132385A JP 28132385 A JP28132385 A JP 28132385A JP S62139584 A JPS62139584 A JP S62139584A
- Authority
- JP
- Japan
- Prior art keywords
- led display
- display device
- led
- circuit board
- chip
- 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
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of El Displays (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) [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、ＬＥＤ表示装置を用いた製品、装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to products and devices using LED display devices.
従来の技術
従来の例えば第４図の様な４桁のカソード共通７セグメ
ン）ＬＥＤ表示装置９の回路において、各ＬＩＣＤ１０
に適正な電流を流す為に、各桁の共通アノード部と、マ
イクロコンピュータ出力部との間に固定抵抗器ｓｆ、挿
入する必要がある。この回路ブロックを実際のプリント
基板に実装した様子を表わしたのが第５図及びその側面
を表わした第６図である。ＬＥＤ表示装置１は、適当な
高さにスペーサ７にて固定され、マイクロコンピュータ
を含むプリント基板６とは、外部接続端子１２にて信号
の伝達を行っている。2. Description of the Related Art In the conventional circuit of a 4-digit cathode (common 7 segment) LED display device 9 as shown in FIG.
In order to flow an appropriate current to the digits, it is necessary to insert a fixed resistor sf between the common anode section of each digit and the microcomputer output section. FIG. 5 shows how this circuit block is mounted on an actual printed circuit board, and FIG. 6 shows a side view thereof. The LED display device 1 is fixed at an appropriate height with a spacer 7, and transmits signals to a printed circuit board 6 including a microcomputer through an external connection terminal 12.
第７図はＬＥＤ表示装置の一例の断面図で、ＬＩＣＤ表
示装置用プリント基板２のパターン１６上にＩ４Ｄチッ
プの片側電極を導電性接着剤等（図示せず）で接続し、
他方の電極は導電性のワイヤ１４にて接続されている。FIG. 7 is a cross-sectional view of an example of an LED display device, in which one side electrode of the I4D chip is connected to the pattern 16 of the printed circuit board 2 for the LICD display device using a conductive adhesive or the like (not shown).
The other electrode is connected by a conductive wire 14.
外部接続端子１２はパターン１６とハンダ１８にて接続
されＬＥＤとつながっている。また発光したＬＥＤチッ
プ１３の光は、光反射ケースにて光を上面に導かれ。The external connection terminal 12 is connected to the pattern 16 with solder 18 and connected to the LED. Further, the emitted light from the LED chip 13 is guided to the upper surface by the light reflecting case.
その光が所定の模様を印刷された光拡散フィルムにてそ
の模様に発光する。The light is emitted in a pattern on a light diffusion film printed with a predetermined pattern.
発明が解決しようとする問題点
ところが、このようなＬＥＩ）表示装置においては、プ
リント基板６上に、電流制限用固定抵抗器５を施さなけ
ればならず、プリント基板全体の小型化全する時に弊害
となる。Problems to be Solved by the Invention However, in such an LEI) display device, a fixed resistor 5 for current limiting must be provided on the printed circuit board 6, which causes problems when the entire printed circuit board is miniaturized. becomes.
本発明はこのような従来の問題点を解消するものであり
、プリント基板ユニットを小型にする目的とする〇
問題点を解決するだめの手段
上記目的を達するため、本発明のＬＩＥＤ表示装置は、
同装置外で接続していた電流制限用抵抗器をチップ化し
て、同装置内に組み込む構成としたものである。The present invention solves these conventional problems, and aims to reduce the size of the printed circuit board unit.Means for solving the problems In order to achieve the above object, the LIED display device of the present invention has the following features:
The current limiting resistor, which was connected outside the device, is made into a chip and built into the device.
作用
本発明のＬＥＤ表示装置は、電流制御用抵抗器をチップ
化し、同装置内に組み込む事で、システム全般のプリン
ト基板ユニットを、小型化にする事が可能になる効果を
有するものである。Function: The LED display device of the present invention has the effect of making it possible to downsize the printed circuit board unit of the entire system by making the current control resistor into a chip and incorporating it into the device.
実施例
以下、本発明の一実施例について図面に基づき説明する
。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.
第１図〜第３図において、ＬＥＤ表示装置用プリント基
板２においてＬＥＤチッグの共通アノード部と外部接続
端子とを接続するパターン１５の途中を切断し、その部
分にＬＩＥＤの電流制限用チップ抵抗器３をハンダ１８
にて取り付ける。同ハンダ付けは、外部接続端子１２を
ノ−ンダ付けする時に同時にすればよく、手間はかから
ない。また図上では角型チップを使用したが、丸型のリ
ードレスタイプでも可能である。1 to 3, the pattern 15 connecting the common anode part of the LED chip and the external connection terminal is cut in the middle of the printed circuit board 2 for the LED display device, and a chip resistor for current limiting of the LIED is installed in that part. Solder 3 to 18
Attach at. This soldering can be done at the same time as soldering the external connection terminals 12, and does not require much effort. Also, although a square chip is used in the diagram, a round leadless type can also be used.
発明の効果
以上のように本発明のＬＥＤ表示装置によれば、次の効
果を得ることができる。Effects of the Invention As described above, according to the LED display device of the present invention, the following effects can be obtained.
（１）外部で構成されていた電流制限抵抗器が無くなっ
た分プリント基板ユニットが小型にでき、またコストダ
ウンにもなる。(1) The printed circuit board unit can be made smaller because the external current limiting resistor is no longer required, and the cost can also be reduced.
（２５電流制限抵抗器を含んだ形でＩ、ＫＤ表示装置の
検査をする事になるので、装置としての完成度及びシス
テム全体としての品質の向上になる。(Since the I and KD display devices will be tested including the 25 current limiting resistor, the completeness of the device and the quality of the system as a whole will be improved.
第１図は本発明の一実施例であるＬＩＣＤ表示装置の斜
視図、第２図は同側面図、第３図は同要部斜視図、第４
図は一般的なＩ４Ｄ表示装置の制御回路図、第６図は従
来例のＬＥＤ表示装置の斜視図、第６図は同側面図、第
７図は同要部断面図である。
１・・・・・・Ｌｇｎ表示装置、３・・・・・・チップ
抵抗器、７・・・・・・スペーサー、９・・・・・・７
セグメントＬＥＤユニツト、１ｏ・・・・・・ＬＩＣＤ
、１１・・・・・・マイクロコンピュータ、１３・・・
・・・Ｌ１ｃＤチップ、１６・・・・・・光拡散フィル
ム、１７・・・・・光反射ケース。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名菓
２ 図
第４１２１
第 ｓｌ！１
！
第７図FIG. 1 is a perspective view of an LICD display device which is an embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a perspective view of the same essential parts, and FIG.
The figure is a control circuit diagram of a general I4D display device, FIG. 6 is a perspective view of a conventional LED display device, FIG. 6 is a side view of the same, and FIG. 7 is a sectional view of the same essential part. 1...Lgn display device, 3...chip resistor, 7...spacer, 9...7
Segment LED unit, 1o...LICD
, 11...Microcomputer, 13...
...L1cD chip, 16...Light diffusion film, 17...Light reflection case. Name of agent: Patent attorney Toshio Nakao and one other name
2 Figure No. 4121 sl! 1! Figure 7
Claims (1)
ップを、同ＬＥＤの電流制限用抵抗器としてのチップ抵
抗を介して外部接続端子と接続したＬＥＤ表示装置。An LED display device in which an LED chip directly bonded onto a printed circuit board is connected to an external connection terminal via a chip resistor that serves as a current limiting resistor for the LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28132385A JPS62139584A (en) | 1985-12-13 | 1985-12-13 | Led display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28132385A JPS62139584A (en) | 1985-12-13 | 1985-12-13 | Led display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62139584A true JPS62139584A (en) | 1987-06-23 |
Family
ID=17637503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28132385A Pending JPS62139584A (en) | 1985-12-13 | 1985-12-13 | Led display unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62139584A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139091A (en) * | 1983-01-31 | 1984-08-09 | 株式会社東芝 | Display unit |
-
1985
- 1985-12-13 JP JP28132385A patent/JPS62139584A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139091A (en) * | 1983-01-31 | 1984-08-09 | 株式会社東芝 | Display unit |
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