JPS59114591U - display device - Google Patents
display deviceInfo
- Publication number
- JPS59114591U JPS59114591U JP713183U JP713183U JPS59114591U JP S59114591 U JPS59114591 U JP S59114591U JP 713183 U JP713183 U JP 713183U JP 713183 U JP713183 U JP 713183U JP S59114591 U JPS59114591 U JP S59114591U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- display drive
- display device
- voltage
- power supply
- 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)
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
第１図に従来の表示装置の回路図、第２図は本考案の一
実施例の回路図、第３図乙イは制御回路の出力波形図、
第４図乙イは他の実施例における出力波形図である。
１・・・・・・制御回路、ｌｅ、 １ｆ・・・・・・
出力端子、１１〜１４・・・・・・発光ダイオード、１
５〜１８・・・・・・抵抗、１９・・・・・・第１のＰ
ＮＰ ）ランジスタ、２０・・・・・・第２のＰＮＰ
）ランジスタ、２１・・・・・・第１のダイオード、２
２・・・・・・第２のダイオード、２３・・・・・・第
１のコンデンサ、２４・・・・・・第２のコンデンサ。Figure 1 is a circuit diagram of a conventional display device, Figure 2 is a circuit diagram of an embodiment of the present invention, Figure 3 is an output waveform diagram of a control circuit,
FIG. 4B is an output waveform diagram in another embodiment. 1...Control circuit, le, 1f...
Output terminal, 11-14... Light emitting diode, 1
5-18...Resistance, 19...First P
NP) transistor, 20...Second PNP
) transistor, 21...first diode, 2
2...Second diode, 23...First capacitor, 24...Second capacitor.
Claims (1)
ドと、これら発光ダイオードのアノードにそれぞれ直列
接続された抵抗と、電源電圧と２相のパルス信号とを用
いて、表示駆動出力信号を前記各抵抗の他端に共通に印
加する表示駆動手段とを備え、この表示駆動手段により
各発光ダイオードに印加する電圧を電源電圧の略１／２
としたことを特徴とする表示装置。Using a large number of light emitting diodes whose cathodes are commonly connected to ground, resistors connected in series to the anodes of these light emitting diodes, and a power supply voltage and two-phase pulse signals, a display drive output signal is generated from each of the resistors. and a display drive means that applies a common voltage to the other end, and the display drive means applies a voltage to each light emitting diode to approximately 1/2 of the power supply voltage.
A display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP713183U JPS59114591U (en) | 1983-01-20 | 1983-01-20 | display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP713183U JPS59114591U (en) | 1983-01-20 | 1983-01-20 | display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59114591U true JPS59114591U (en) | 1984-08-02 |
Family
ID=30138664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP713183U Pending JPS59114591U (en) | 1983-01-20 | 1983-01-20 | display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59114591U (en) |
-
1983
- 1983-01-20 JP JP713183U patent/JPS59114591U/en active Pending
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