JPH0281089A - Electronic equipment - Google Patents
Electronic equipmentInfo
- Publication number
- JPH0281089A JPH0281089A JP63232167A JP23216788A JPH0281089A JP H0281089 A JPH0281089 A JP H0281089A JP 63232167 A JP63232167 A JP 63232167A JP 23216788 A JP23216788 A JP 23216788A JP H0281089 A JPH0281089 A JP H0281089A
- Authority
- JP
- Japan
- Prior art keywords
- backlight
- battery
- power source
- power supply
- detector
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 る。[Detailed description of the invention] Ru.
第１図は本発明の一実施例を示す。FIG. 1 shows an embodiment of the invention.
図において、１は電源としての乾電池である。In the figure, 1 is a dry battery as a power source.
２は電源としてのＡＣアダプタで、交流を直流に変換す
るものである。３は検出器で乾電池１が本体に電気的に
接続されているか否かを検出するものである。４は検出
器で、ＡＣアダプタ２が電気的に接続されているか否か
を検出するものである。５は電源２次側ユニットで、乾
電池１またはへＣアダプタ２の電圧を所定の電圧にする
ものである。７は判断手段としての制御部で、電源とし
て乾電池１が使用されているか否かを判断するものであ
る。制御部７は電源としてＡＣアダプタ２が使用されて
いるか否かを判断するものである。６は消灯手段どして
の電源供給コントロール部で、電源としてＣｊ＋ ４池
１が使用されている場合、バックライト８を消灯するも
のである。バックライト８は液晶表示器９を照明するも
のである。2 is an AC adapter as a power source, which converts alternating current into direct current. A detector 3 detects whether or not the dry battery 1 is electrically connected to the main body. A detector 4 detects whether or not the AC adapter 2 is electrically connected. Reference numeral 5 denotes a secondary side unit of the power supply, which sets the voltage of the dry battery 1 or the AC adapter 2 to a predetermined voltage. Reference numeral 7 denotes a control section as a determining means, which determines whether or not the dry cell battery 1 is being used as a power source. The control unit 7 determines whether the AC adapter 2 is being used as a power source. Reference numeral 6 denotes a power supply control unit as a light extinguishing means, which turns off the backlight 8 when the Cj+4 battery 1 is used as a power source. The backlight 8 illuminates the liquid crystal display 9.
次に、動作を説明する。Next, the operation will be explained.
へ〇アダプタ２が電気的に接続されていないことが検出
器４により検出され、かつ、乾電池１が電気的に接続さ
れていることが検出器３により検出されると、制御部７
から電源供給コントロール部６に命令信号が出力され、
電源供給コントロール部６により電源２次側ユニット５
からバックライト８への電源供給が停止され、バックラ
イト８が消灯される。〇When the detector 4 detects that the adapter 2 is not electrically connected and the detector 3 detects that the dry battery 1 is electrically connected, the controller 7
A command signal is output from the power supply control section 6,
The power supply control unit 6 controls the power supply secondary side unit 5.
The power supply to the backlight 8 is stopped, and the backlight 8 is turned off.
［発明の効果］
以上説明したように、未発明によれば、上記のように構
成したので、電池の寿命を延ばずことができるという効
果がある。[Effects of the Invention] As explained above, according to the invention, since the structure is configured as described above, there is an effect that the life of the battery can be maintained without being extended.
第１図は本発明実施例の電子機器を示すブロック図であ
る。
１ ・・・ ※乾電池、
３・・・検出器、
６・・・電源供給コントロール部、
７・・・制御部、
８・・・バックライト、
９・・・液晶表示器。
第１図FIG. 1 is a block diagram showing an electronic device according to an embodiment of the present invention. 1... *Dry battery, 3... Detector, 6... Power supply control section, 7... Control section, 8... Backlight, 9... Liquid crystal display. Figure 1
Claims (1)
て、 電源として電池が使用されているか否かを判断する判断
手段と、 判断した結果、電池が使用されている場合、前記バック
ライトを消灯する消灯手段と を備えたことを特徴とする電子機器。[Scope of Claims] 1) An electronic device having a liquid crystal display with a backlight, a determination means for determining whether or not a battery is used as a power source, and a case where it is determined that a battery is being used as a power source. , and a light extinguishing means for extinguishing the backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63232167A JPH0281089A (en) | 1988-09-19 | 1988-09-19 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63232167A JPH0281089A (en) | 1988-09-19 | 1988-09-19 | Electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0281089A true JPH0281089A (en) | 1990-03-22 |
Family
ID=16935045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63232167A Pending JPH0281089A (en) | 1988-09-19 | 1988-09-19 | Electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0281089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453924A (en) * | 1990-06-21 | 1992-02-21 | Sharp Corp | Backlight controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211796A (en) * | 1988-02-19 | 1989-08-24 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
-
1988
- 1988-09-19 JP JP63232167A patent/JPH0281089A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211796A (en) * | 1988-02-19 | 1989-08-24 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453924A (en) * | 1990-06-21 | 1992-02-21 | Sharp Corp | Backlight controller |
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