JPH0444626U - - Google Patents

Info

Publication number
JPH0444626U
JPH0444626U JP8544990U JP8544990U JPH0444626U JP H0444626 U JPH0444626 U JP H0444626U JP 8544990 U JP8544990 U JP 8544990U JP 8544990 U JP8544990 U JP 8544990U JP H0444626 U JPH0444626 U JP H0444626U
Authority
JP
Japan
Prior art keywords
illumination
light
resistor
supplied
lcd backlight
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
Application number
JP8544990U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8544990U priority Critical patent/JPH0444626U/ja
Publication of JPH0444626U publication Critical patent/JPH0444626U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の１実施例としてのＬＣＤバツ
クライトの減光装置の全体構成図、第２図は上記
第１図の装置におけるＬＣＤバツクライトの明る
さの変化する状態を示す図である。 符号の説明、Ｔ１〜Ｔ３……トランジスタ、Ｒ
……抵抗、Ｄ１，Ｄ２……ダイオード、Ｌ１……
前面文字板照明灯、Ｌ２……ＬＣＤバツクライト
。 FIG. 1 is an overall configuration diagram of an LCD backlight dimming device as an embodiment of the present invention, and FIG. 2 is a diagram showing how the brightness of the LCD backlight changes in the device shown in FIG. 1. Explanation of symbols, T1 to T3...transistor, R
...Resistance, D1, D2...Diode, L1...
Front dial light, L2...LCD back light.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] スモールライトの点灯に連動して電源供給され
る照明用電源ラインに前面文字板の照明灯が持続
されるとともに、該前面文字板の照明灯と並列に
所定の抵抗値を有する抵抗とＬＣＤバツクライト
との直列回路が接続され、該照明用電源ライトへ
の電圧供給時に、該抵抗に生ずる電圧降下により
該ＬＣＤバツクライトを１ステツプ減光させるよ
うにしたことを特徴とする夜間時などにおけるＬ
ＣＤバツクライトの減光装置。 The illumination light on the front dial is maintained in the illumination power line that is supplied with power in conjunction with the lighting of the small light, and a resistor having a predetermined resistance value and an LCD backlight are connected in parallel to the illumination light on the front dial. A series circuit is connected, and when voltage is supplied to the illumination power source light, the LCD backlight is dimmed by one step due to the voltage drop that occurs in the resistor.
CD backlight dimming device.
JP8544990U 1990-08-14 1990-08-14 Pending JPH0444626U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8544990U JPH0444626U (en) 1990-08-14 1990-08-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8544990U JPH0444626U (en) 1990-08-14 1990-08-14

Publications (1)

Publication Number Publication Date
JPH0444626U true JPH0444626U (en) 1992-04-15

Family

ID=31816725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8544990U Pending JPH0444626U (en) 1990-08-14 1990-08-14

Country Status (1)

Country Link
JP (1) JPH0444626U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141195A (en) * 1983-01-31 1984-08-13 日本精機株式会社 Dimmer
JPH02165189A (en) * 1988-12-19 1990-06-26 Hitachi Ltd On-vehicle liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141195A (en) * 1983-01-31 1984-08-13 日本精機株式会社 Dimmer
JPH02165189A (en) * 1988-12-19 1990-06-26 Hitachi Ltd On-vehicle liquid crystal display device

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