JPS63155189U - - Google Patents
Info
- Publication number
- JPS63155189U JPS63155189U JP4586787U JP4586787U JPS63155189U JP S63155189 U JPS63155189 U JP S63155189U JP 4586787 U JP4586787 U JP 4586787U JP 4586787 U JP4586787 U JP 4586787U JP S63155189 U JPS63155189 U JP S63155189U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- display device
- power supply
- supply circuit
- synchronization signal
- 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
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は同実施例の同期信号監視回路の一例を示
す回路図、第３図は同回路のタイミングチヤート
、第４図は従来例を示すブロツク図、第５図は同
従来例の制御装置との接続の一例を示すブロツク
図、第６図は同従来例の制御装置との接続の他の
例を示すブロツク図である。
１…ＣＲＴ、２…ＣＲＴ駆動回路、５…ＣＲＴ
制御装置、６…ビデオインターフエースケーブル
、７…主電源回路、８…同期信号監視回路、９…
予熱回路、１０…補助電源回路。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Fig. 2 is a circuit diagram showing an example of the synchronization signal monitoring circuit of the same embodiment, Fig. 3 is a timing chart of the same circuit, Fig. 4 is a block diagram showing a conventional example, and Fig. 5 is a control device of the same conventional example. FIG. 6 is a block diagram showing another example of connection with the conventional control device. 1...CRT, 2...CRT drive circuit, 5...CRT
Control device, 6... Video interface cable, 7... Main power circuit, 8... Synchronization signal monitoring circuit, 9...
Preheating circuit, 10...auxiliary power supply circuit.
Claims (1)
する表示器と、 該表示器を駆動する駆動回路と、 これら表示器及び駆動回路に接続した電源回路
とを有し、 制御装置と接続して、制御装置より送出される
信号により、表示器上に出画する表示動作を行う
表示装置において、 前記電源回路を主電流回路とし、 常時動作している小容量の補助電源回路と、 該補助電源回路を作動電源とし、制御装置より
供給される同期信号の有無を監視し、同期信号有
りで主電源回路への電圧供給を開に、同期信号無
しで主電源回路への電圧供給を閉にする同期信号
監視回路と、 前記補助電源回路を作動電源とし、表示器のカ
ソードにヒータ電流を供給する予熱回路とを設け
たことを特徴とする表示装置。[Claims for Utility Model Registration] A display device that displays arbitrary images such as characters, images, or symbols, a drive circuit that drives the display device, and a power supply circuit that is connected to the display device and the drive circuit. , in a display device that is connected to a control device and performs a display operation of displaying an image on the display device based on signals sent from the control device, the power supply circuit being a main current circuit, and a small-capacity auxiliary circuit that is always operating. The power supply circuit and the auxiliary power supply circuit are used as operating power sources, and the presence or absence of a synchronization signal supplied from the control device is monitored, and when a synchronization signal is present, the voltage supply to the main power supply circuit is opened, and when there is no synchronization signal, the voltage supply to the main power supply circuit is opened. A display device comprising: a synchronization signal monitoring circuit for closing a voltage supply; and a preheating circuit that uses the auxiliary power supply circuit as an operating power source and supplies a heater current to a cathode of the display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4586787U JPS63155189U (en) | 1987-03-30 | 1987-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4586787U JPS63155189U (en) | 1987-03-30 | 1987-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63155189U true JPS63155189U (en) | 1988-10-12 |
Family
ID=30865001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4586787U Pending JPS63155189U (en) | 1987-03-30 | 1987-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63155189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1097356A (en) * | 1996-08-14 | 1998-04-14 | Samsung Electron Co Ltd | Power saving display device |
-
1987
- 1987-03-30 JP JP4586787U patent/JPS63155189U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1097356A (en) * | 1996-08-14 | 1998-04-14 | Samsung Electron Co Ltd | Power saving display device |
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