JPS6111189U - Dimming circuit for in-vehicle equipment display section - Google Patents

Dimming circuit for in-vehicle equipment display section

Info

Publication number
JPS6111189U
JPS6111189U JP9545984U JP9545984U JPS6111189U JP S6111189 U JPS6111189 U JP S6111189U JP 9545984 U JP9545984 U JP 9545984U JP 9545984 U JP9545984 U JP 9545984U JP S6111189 U JPS6111189 U JP S6111189U
Authority
JP
Japan
Prior art keywords
dimming
vehicle
light
display section
circuit
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.)
Granted
Application number
JP9545984U
Other languages
Japanese (ja)
Other versions
JPH0521486Y2 (en
Inventor
俊彦 緒方
Original Assignee
富士通テン株式会社
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 by 富士通テン株式会社 filed Critical 富士通テン株式会社
Priority to JP9545984U priority Critical patent/JPS6111189U/en
Publication of JPS6111189U publication Critical patent/JPS6111189U/en
Application granted granted Critical
Publication of JPH0521486Y2 publication Critical patent/JPH0521486Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Audible And Visible Signals (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

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

第１図は本考案の一実施例を示すブロック図、′第２図
および第３図は異なる具体例を示す回路図、第４図は従
来の減光回路の一例を示すブロック図、第５図および第
６図はその具体例を示す回路図である。 図中、１はライトスイッチ、２は減光切換制御回路、３
は表示部、４は受光素子、５はアンプ、Ｄ〜Ｄｎは発光
ダイオードである。Fig. 1 is a block diagram showing one embodiment of the present invention; Figs. 2 and 3 are circuit diagrams showing different specific examples; Fig. 4 is a block diagram showing an example of a conventional dimming circuit; The figure and FIG. 6 are circuit diagrams showing a specific example thereof. In the figure, 1 is a light switch, 2 is a dimming switching control circuit, and 3 is a light switch.
4 is a display section, 4 is a light receiving element, 5 is an amplifier, and D to Dn are light emitting diodes.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 車両内部で各種の情報を表示する表示素子に発光ダイオ
ードを使用した車載用機器表示部の減光回路において、
該車両のライトスイッチをオンにすると該発光ダイオー
ドー、の印加電圧を低下させて減光する減光切換制街回
路と、該車両内部の明るさを検知する受光素子と、該受
光素子の出力電流を増幅して該電流が一定値を越えてい
るときは該減光切換制御回路を強制的に減光不可の状態
にしておく増幅器とを備えてなることを特徴とする車載
用機器表示部の減光回路。In the dimming circuit of the display section of in-vehicle equipment that uses light-emitting diodes as the display element that displays various information inside the vehicle,
A dimming switching circuit that reduces the voltage applied to the light emitting diode to dim the light when the vehicle's light switch is turned on, a light receiving element that detects the brightness inside the vehicle, and an output current of the light receiving element. and an amplifier that amplifies the current and forcibly sets the dimming switching control circuit in a state where dimming is not possible when the current exceeds a certain value. Dimming circuit.
JP9545984U 1984-06-26 1984-06-26 Dimming circuit for in-vehicle equipment display section Granted JPS6111189U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9545984U JPS6111189U (en) 1984-06-26 1984-06-26 Dimming circuit for in-vehicle equipment display section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9545984U JPS6111189U (en) 1984-06-26 1984-06-26 Dimming circuit for in-vehicle equipment display section

Publications (2)

Publication Number Publication Date
JPS6111189U true JPS6111189U (en) 1986-01-23
JPH0521486Y2 JPH0521486Y2 (en) 1993-06-02

Family

ID=30654596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9545984U Granted JPS6111189U (en) 1984-06-26 1984-06-26 Dimming circuit for in-vehicle equipment display section

Country Status (1)

Country Link
JP (1) JPS6111189U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002132218A (en) * 2000-10-26 2002-05-09 Sony Corp Display device, brightness limiting circuit, and method for driving the display device
JP2006131008A (en) * 2004-11-04 2006-05-25 Xanavi Informatics Corp Vehicle electronic device system and on-vehicle electronic device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562090A (en) * 1979-06-15 1981-01-10 Matsushita Electric Works Ltd Display device using battery power
JPS5669548U (en) * 1979-10-29 1981-06-09
JPS5725048U (en) * 1980-07-21 1982-02-09
JPS58214429A (en) * 1982-06-08 1983-12-13 Nissan Motor Co Ltd Dimmer device for car display unit
JPS5937144U (en) * 1982-09-01 1984-03-08 日産自動車株式会社 Dimmer device for vehicle display device
JPS5989391U (en) * 1982-12-06 1984-06-16 日立電子株式会社 In-vehicle electronic equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5275356A (en) * 1975-12-19 1977-06-24 Toshiba Corp Magnetic flowmeter
JPS5937144B2 (en) * 1976-06-30 1984-09-07 新日本製鐵株式会社 Connecting device for roll unit for steel plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562090A (en) * 1979-06-15 1981-01-10 Matsushita Electric Works Ltd Display device using battery power
JPS5669548U (en) * 1979-10-29 1981-06-09
JPS5725048U (en) * 1980-07-21 1982-02-09
JPS58214429A (en) * 1982-06-08 1983-12-13 Nissan Motor Co Ltd Dimmer device for car display unit
JPS5937144U (en) * 1982-09-01 1984-03-08 日産自動車株式会社 Dimmer device for vehicle display device
JPS5989391U (en) * 1982-12-06 1984-06-16 日立電子株式会社 In-vehicle electronic equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002132218A (en) * 2000-10-26 2002-05-09 Sony Corp Display device, brightness limiting circuit, and method for driving the display device
JP2006131008A (en) * 2004-11-04 2006-05-25 Xanavi Informatics Corp Vehicle electronic device system and on-vehicle electronic device
JP4624074B2 (en) * 2004-11-04 2011-02-02 クラリオン株式会社 Vehicle electronic device system and vehicle-mounted electronic device

Also Published As

Publication number Publication date
JPH0521486Y2 (en) 1993-06-02

Similar Documents

Publication Publication Date Title
JPS6111189U (en) Dimming circuit for in-vehicle equipment display section
JPS585085U (en) Vehicle light emitting diode display circuit
JPS58140840U (en) Vehicle display device
JPS6133395U (en) Dimming circuit when lamps and light emitting diodes are mixed
JPS5989391U (en) In-vehicle electronic equipment
JP2518981Y2 (en) Display device
JPS5830350U (en) Signal level display circuit
JPS58110861U (en) voltage display circuit
JPS6082386U (en) LED lighting display circuit
JPS60165995U (en) Power supply voltage checker
JPS5881144U (en) Vehicle lamp lighting circuit
JPS5923760U (en) Light emitting diode switching circuit
JPS59119744U (en) Electronic equipment with light emitting display elements
JPS5893878U (en) Battery check circuit
JPS5893988U (en) Indicator light control circuit with flicker function
JPS585086U (en) Display circuit of mode switching device
JPS5813699U (en) dimmer circuit
JPS60129792A (en) Dimmer for display
JPS5826088U (en) display device
JPS59178790U (en) Display circuit using light emitting diodes
JPS585203U (en) Vehicle indicator circuit
JPS60129022U (en) Operation display structure of electronic equipment
JPS59104191U (en) Fluorescent display tube dimmer circuit
JPS6061845U (en) Display and control signal generation circuit
JPS60139544U (en) Vehicle meter lighting control circuit