JPH0470693U - - Google Patents

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Publication number
JPH0470693U
JPH0470693U JP11160790U JP11160790U JPH0470693U JP H0470693 U JPH0470693 U JP H0470693U JP 11160790 U JP11160790 U JP 11160790U JP 11160790 U JP11160790 U JP 11160790U JP H0470693 U JPH0470693 U JP H0470693U
Authority
JP
Japan
Prior art keywords
temperature
liquid crystal
circuit
crystal display
video
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
JP11160790U
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 JP11160790U priority Critical patent/JPH0470693U/ja
Publication of JPH0470693U publication Critical patent/JPH0470693U/ja
Pending legal-status Critical Current

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  • Liquid Crystal Display Device Control (AREA)

Description

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

第１図は本考案による液晶表示装置の一実施例
を示すブロツク図、第２図は第１図の液晶表示装
置の動作を示す動作流れ図、第３図は上記液晶表
示装置の動作を示すタイミング図、第４図は従来
の液晶表示装置のブロツク図、第５図は従来の液
晶表示装置の動作を示すタイミング図である。 １……調光電圧制御回路、３……インバータ、
４……バツクライト、５……映像回路、６……液
晶表示パネル、７……電源回路、９……温度セン
サ、１０……温度センサ回路、１１……制御回路
。 FIG. 1 is a block diagram showing an embodiment of the liquid crystal display device according to the present invention, FIG. 2 is an operation flowchart showing the operation of the liquid crystal display device of FIG. 1, and FIG. 3 is a timing diagram showing the operation of the liquid crystal display device described above. 4 is a block diagram of a conventional liquid crystal display device, and FIG. 5 is a timing chart showing the operation of the conventional liquid crystal display device. 1... Dimming voltage control circuit, 3... Inverter,
4... Backlight, 5... Video circuit, 6... Liquid crystal display panel, 7... Power supply circuit, 9... Temperature sensor, 10... Temperature sensor circuit, 11... Control circuit.

Claims (1)

【実用新案登録請求の範囲】 液晶表示パネルを背後から照らし、調光電圧に
よつて輝度が変化されるバツクライトと、 この液晶パネルに映像信号を出力する映像回路
と、 環境温度を検知する温度センサと、 この温度センサからのセンサ出力に基づき環境
温度が設定下限温度より低いときに低温度検出信
号を出力する環境温度判定回路と、 装置本体への電源投入時に、この環境温度判定
回路からの低温度検出信号に基づき、電源投入後
の一定時間だけ調光電圧をバツクライトが起動で
きる十分な電圧に高めるとともに、この一定時間
だけ映像回路から出力される映像信号にミユート
をかける制御回路とを有することを特徴とする液
晶表示装置。[Scope of claim for utility model registration] A backlight that illuminates a liquid crystal display panel from behind and whose brightness is changed by a dimming voltage, a video circuit that outputs a video signal to this liquid crystal panel, and a temperature sensor that detects the environmental temperature. an environmental temperature determination circuit that outputs a low temperature detection signal when the environmental temperature is lower than the set lower limit temperature based on the sensor output from this temperature sensor; It has a control circuit that increases the dimming voltage to a voltage sufficient to start the backlight for a certain period of time after power is turned on based on the temperature detection signal, and mutes the video signal output from the video circuit for this certain period of time. A liquid crystal display device featuring:
JP11160790U 1990-10-26 1990-10-26 Pending JPH0470693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11160790U JPH0470693U (en) 1990-10-26 1990-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11160790U JPH0470693U (en) 1990-10-26 1990-10-26

Publications (1)

Publication Number Publication Date
JPH0470693U true JPH0470693U (en) 1992-06-23

Family

ID=31859076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11160790U Pending JPH0470693U (en) 1990-10-26 1990-10-26

Country Status (1)

Country Link
JP (1) JPH0470693U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008164844A (en) * 2006-12-27 2008-07-17 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
JP2009512894A (en) * 2005-10-19 2009-03-26 ローズマウント インコーポレイテッド LCD design for low temperature operation
JP2010217213A (en) * 2009-03-13 2010-09-30 Sony Corp Liquid crystal display device, and method for controlling liquid crystal display device at power-on

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009512894A (en) * 2005-10-19 2009-03-26 ローズマウント インコーポレイテッド LCD design for low temperature operation
JP2008164844A (en) * 2006-12-27 2008-07-17 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
JP2010217213A (en) * 2009-03-13 2010-09-30 Sony Corp Liquid crystal display device, and method for controlling liquid crystal display device at power-on

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