JPS55114908A - Liquid crystal display measuring instrument board - Google Patents

Liquid crystal display measuring instrument board

Info

Publication number
JPS55114908A
JPS55114908A JP2194679A JP2194679A JPS55114908A JP S55114908 A JPS55114908 A JP S55114908A JP 2194679 A JP2194679 A JP 2194679A JP 2194679 A JP2194679 A JP 2194679A JP S55114908 A JPS55114908 A JP S55114908A
Authority
JP
Japan
Prior art keywords
liquid crystal
power source
electrode
warming
measuring instrument
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
JP2194679A
Other languages
Japanese (ja)
Inventor
Takao Umeda
Yuzuru Shimazaki
Eiichi Ishikawa
Takao Miyashita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2194679A priority Critical patent/JPS55114908A/en
Publication of JPS55114908A publication Critical patent/JPS55114908A/en
Pending legal-status Critical Current

Links

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  • Indicating Measured Values (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To make it possible to keep normal functions sufficiently even in the cold northern district, by flowing a current from the external to one electrode, at least, of a liquid crystal display measuring instrument board and by using this electrode as a heating element to heat the liquid crystal layer.
CONSTITUTION: In the figure, lower electrode 2' of a liquid crystal element is used in common as a heating element for liquid crystal layer warming. In the example of the figure, a DC power source (voltage E) is used as the warming power source, and an AC power source of voltage Vs is used for the liquid crystal driving. When lower electrode 2' is used in common as the warming resistor also, heat generated by supplying to lower electrode 2' is propagated to lower substrate 1' first, and simultaneously, this heat is propagated to liquid crystal layer 4 through orientation film 3. Then, the element reaches a certain temperature, it can perform display operations, and the calorific value can be controlled by variable resistance R1 after the liquid crystal element reaches the temperature where it can operate normally.
COPYRIGHT: (C)1980,JPO&Japio
JP2194679A 1979-02-28 1979-02-28 Liquid crystal display measuring instrument board Pending JPS55114908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2194679A JPS55114908A (en) 1979-02-28 1979-02-28 Liquid crystal display measuring instrument board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2194679A JPS55114908A (en) 1979-02-28 1979-02-28 Liquid crystal display measuring instrument board

Publications (1)

Publication Number Publication Date
JPS55114908A true JPS55114908A (en) 1980-09-04

Family

ID=12069217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2194679A Pending JPS55114908A (en) 1979-02-28 1979-02-28 Liquid crystal display measuring instrument board

Country Status (1)

Country Link
JP (1) JPS55114908A (en)

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