JPS6459329A - Liquid crystal protecting circuit for liquid crystal display device - Google Patents

Liquid crystal protecting circuit for liquid crystal display device

Info

Publication number
JPS6459329A
JPS6459329A JP21739787A JP21739787A JPS6459329A JP S6459329 A JPS6459329 A JP S6459329A JP 21739787 A JP21739787 A JP 21739787A JP 21739787 A JP21739787 A JP 21739787A JP S6459329 A JPS6459329 A JP S6459329A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal indicator
display device
temperature
crystal display
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
JP21739787A
Other languages
Japanese (ja)
Other versions
JP2558731B2 (en
Inventor
Yoshiyuki Tomizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba Audio Video Engineering Co Ltd
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 Toshiba Corp, Toshiba Audio Video Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP62217397A priority Critical patent/JP2558731B2/en
Publication of JPS6459329A publication Critical patent/JPS6459329A/en
Application granted granted Critical
Publication of JP2558731B2 publication Critical patent/JP2558731B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To protect a liquid crystal indicator from its deterioration and breakdown, by providing a temperature detector for outputting a detecting signal for showing a fact that the temperature of the inside of a liquid crystal display device has exceeded a prescribed temperature, and a control means for outputting a control signal for turning off a power source supply of a power source circuit, based on said detecting signal. CONSTITUTION:By installing a temperature detector 15 in the inside of a liquid crystal display device, it is detected that the temperature of the inside of the device has become a high temperature, its detecting output is processed by a control means (microcomputer) 17, and by controlling a power source circuit 14 so that a liquid crystal indicator 11 is not operated for many hours at the time of a high temperature, the liquid crystal indicator 11 is protected. In such a way, it is prevented that the liquid crystal indicator is operated in a high temperature state, the liquid crystal indicator can be protected from its deterioration and breakdown, and especially, in case of using the liquid crystal display device in the inside of a vehicle in which the possibility of operating it at a high temperature is high, a long service life of the liquid crystal indicator can be realized by this protecting circuit.
JP62217397A 1987-08-31 1987-08-31 LCD protection circuit for LCD Expired - Lifetime JP2558731B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62217397A JP2558731B2 (en) 1987-08-31 1987-08-31 LCD protection circuit for LCD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217397A JP2558731B2 (en) 1987-08-31 1987-08-31 LCD protection circuit for LCD

Publications (2)

Publication Number Publication Date
JPS6459329A true JPS6459329A (en) 1989-03-07
JP2558731B2 JP2558731B2 (en) 1996-11-27

Family

ID=16703550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217397A Expired - Lifetime JP2558731B2 (en) 1987-08-31 1987-08-31 LCD protection circuit for LCD

Country Status (1)

Country Link
JP (1) JP2558731B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429174A2 (en) * 2002-12-11 2004-06-16 Denso International America, Inc. High temperature shut-off for an LCD heater
WO2007034593A1 (en) * 2005-09-26 2007-03-29 Mitsubishi Denki Kabushiki Kaisha Display device
WO2014080521A1 (en) * 2012-11-26 2014-05-30 パイオニア株式会社 Display device, control method, program, and storage medium
JP2020091107A (en) * 2018-12-03 2020-06-11 株式会社堀場エステック Fluid control device, control method for fluid control device, and program for fluid control device
CN116300169A (en) * 2023-03-31 2023-06-23 业成科技（成都）有限公司 Display panel, display device, and control method of display panel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429174A2 (en) * 2002-12-11 2004-06-16 Denso International America, Inc. High temperature shut-off for an LCD heater
US6891129B2 (en) 2002-12-11 2005-05-10 Denso International America, Inc. High temperature shut-off for an LCD heater
US6891135B2 (en) 2002-12-11 2005-05-10 Denso International America, Inc. High temperature shut-off for an LCD heater
WO2007034593A1 (en) * 2005-09-26 2007-03-29 Mitsubishi Denki Kabushiki Kaisha Display device
WO2014080521A1 (en) * 2012-11-26 2014-05-30 パイオニア株式会社 Display device, control method, program, and storage medium
JP2020091107A (en) * 2018-12-03 2020-06-11 株式会社堀場エステック Fluid control device, control method for fluid control device, and program for fluid control device
CN116300169A (en) * 2023-03-31 2023-06-23 业成科技（成都）有限公司 Display panel, display device, and control method of display panel

Also Published As

Publication number Publication date
JP2558731B2 (en) 1996-11-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term