JPH0179098U - - Google Patents
Info
- Publication number
- JPH0179098U JPH0179098U JP1987174420U JP17442087U JPH0179098U JP H0179098 U JPH0179098 U JP H0179098U JP 1987174420 U JP1987174420 U JP 1987174420U JP 17442087 U JP17442087 U JP 17442087U JP H0179098 U JPH0179098 U JP H0179098U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- display
- accessory switch
- drive circuit
- battery
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
第１図は本考案による表示駆動回路の一実施例
を示す回路構成図、第２図は本考案の別の実施例
を示す一部構成図、第３図は従来の表示駆動回路
の一例を示す回路構成図である。
１……バツテリー、３……アクセサリ（Ａｃｃ
）スイツチ、４……ドアスイツチ、５……ルーム
ランプスイツチ、６……ルームランプ、７……カ
ーテシランプ、８……時計用フイラメント回路、
９，１０……ダイオード、１１，１２……抵抗、
１３……定電圧ダイオード、１４……ＶＦＤのフ
イラメント、１７……ＬＣＤのバツク照明ランプ
、１８……ＬＣＤバツク照明ランプ回路。
FIG. 1 is a circuit configuration diagram showing one embodiment of a display drive circuit according to the present invention, FIG. 2 is a partial configuration diagram showing another embodiment of the present invention, and FIG. 3 is an example of a conventional display drive circuit. FIG. 1...Battery, 3...Accessories (Acc
) switch, 4... door switch, 5... room lamp switch, 6... room lamp, 7... courtesy lamp, 8... filament circuit for clock,
9, 10...Diode, 11, 12...Resistor,
13... Constant voltage diode, 14... VFD filament, 17... LCD back lighting lamp, 18... LCD back lighting lamp circuit.
Claims (1)
電源供給路を開閉するアクセサリスイツチを備え
、このアクセサリスイツチのオン、オフ操作に応
じて表示器を点灯表示させる表示駆動回路におい
て、ドアの開閉に応じてオン、オフ動作するドア
スイツチを前記アクセサリスイツチに対して並列
的に設け、これらドアスイツチとアクセサリスイ
ツチとの論理和により前記表示器の表示を制御す
るようにしたことを特徴とする表示駆動回路。 The display drive circuit is equipped with a battery and an accessory switch that opens and closes the power supply path from the battery to the display, and turns on and off in response to the on/off operation of the accessory switch. A display drive circuit characterized in that a door switch that is turned off is provided in parallel with the accessory switch, and the display of the display device is controlled by a logical sum of the door switch and the accessory switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174420U JPH0179098U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174420U JPH0179098U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0179098U true JPH0179098U (en) | 1989-05-26 |
Family
ID=31466276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987174420U Pending JPH0179098U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0179098U (en) |
-
1987
- 1987-11-17 JP JP1987174420U patent/JPH0179098U/ja active Pending
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