JPS5997120A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5997120A
JPS5997120A JP20618182A JP20618182A JPS5997120A JP S5997120 A JPS5997120 A JP S5997120A JP 20618182 A JP20618182 A JP 20618182A JP 20618182 A JP20618182 A JP 20618182A JP S5997120 A JPS5997120 A JP S5997120A
Authority
JP
Japan
Prior art keywords
heater
liquid crystal
display device
crystal display
substrate
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
JP20618182A
Other languages
Japanese (ja)
Inventor
Hiroshige Tanaka
田中　裕成
Shichiro Kobayashi
小林　七朗
Mikio Kanezaki
金崎　幹雄
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 JP20618182A priority Critical patent/JPS5997120A/en
Publication of JPS5997120A publication Critical patent/JPS5997120A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To enable heating of a liquid crystal layer in a short time and to form a liquid crystal display device provided with a heater having high reliability by forming a heater resistor of a transparent conductive film on the outside surface of a glass substrate and specifying the electric power consumption of the heater. CONSTITUTION:Orientation control films 3, 4 and electrodes 5, 6 are formed on two sheets of glass substrates 1, 2. The substrates 1, 2 are sealed with a sealant 7 and a liquid crystal 8 is sealed in the inside. A heater 9 is formed on the outside surface of the one substrate 2. A polarization plate 10 is provided on the heater 9 and a polarization plate 11 is provided on the other substrate 1. The heater 9 is formed of a heater electrode 12 and a transparent conductive film 13 for the heater. The electric power consumption of the heater is specified at 0.2- 0.5W/cm<2>. A high heating rate (30 deg.C up in one minute) is thus obtd. and a liquid crystal display device provided with the heater having high reliability is obtd.

Description

【発明の詳細な説明】 本発明は液晶表示装置に係り、特にヒータを備えた液晶
表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device equipped with a heater.

従来の液晶表示装置においては、ヒータを基板に接触さ
せて使用されていた。そのため、低温（例えば−３０℃
）において液晶表示装置の中の液晶層の温度を０℃以上
ζこ上昇させるのに数分〜数十分必要であった。In conventional liquid crystal display devices, a heater is used in contact with a substrate. Therefore, low temperature (e.g. -30℃)
), it took several minutes to several tens of minutes to raise the temperature of the liquid crystal layer in the liquid crystal display device by 0° C. or more.

本発明の目的は液晶層を短時間で加熱し、さらに高信頼
度のヒータを備えた液晶表示装置を提供することにある
。An object of the present invention is to provide a liquid crystal display device that heats a liquid crystal layer in a short time and is equipped with a highly reliable heater.

以下、本発明の一実施例を第１図により説明する。２枚
のガラス基板１．２（こはそれぞれ配向制御膜３．４お
よび電極５．６が形成されている。An embodiment of the present invention will be described below with reference to FIG. Two glass substrates 1.2 (on which an alignment control film 3.4 and an electrode 5.6 are formed, respectively).

これら２枚のガラス基板１．２をシール剤７でシールし
、内部に液晶８を封入し、また一方のガラス基板２の外
面にはヒータ９が形成され、その上に偏光板１０を設け
、他方のガラス基板１には偏光板１１を設けてなる。These two glass substrates 1.2 are sealed with a sealant 7, a liquid crystal 8 is sealed inside, and a heater 9 is formed on the outer surface of one of the glass substrates 2, and a polarizing plate 10 is provided thereon. A polarizing plate 11 is provided on the other glass substrate 1.

第２図は前記ヒータ９の平面図（第１図下側から見たも
の）であり、１２はヒータ電極、１３はヒータ用透明導
電膜である。ａはヒータ電極の電極間距離、ｂはヒータ
の幅である。ｖＯはヒータ電極間に印加される印加電圧
である。FIG. 2 is a plan view of the heater 9 (viewed from the bottom side of FIG. 1), where 12 is a heater electrode and 13 is a transparent conductive film for the heater. a is the distance between the heater electrodes, and b is the width of the heater. vO is the applied voltage applied between the heater electrodes.

ヒータ用透明導電膜１３のシート抵抗値をＲ％実験的に
検討した結果、単位面積当りの消費電力Ｗが０．５〜以
上となると、２分〜５分連続通電にてガラスにクラック
が生じた。また消費電力０、２　Ｗ／ｄ以上では、液晶
温度が一３０℃からＯ℃まで約１分間で上昇されるのが
確認された。As a result of experimentally examining the sheet resistance value of the transparent conductive film 13 for heaters by R%, it was found that when the power consumption W per unit area is 0.5 or more, cracks occur in the glass when the current is continuously applied for 2 to 5 minutes. Ta. Furthermore, when the power consumption was 0.2 W/d or more, it was confirmed that the liquid crystal temperature rose from 130° C. to 0° C. in about 1 minute.

本発明によれば、ヒータの消費電力を０．２〜０．４Ｗ
−とすることにより、高速加熱速度（１分間ζこ３０℃
上昇）を得ることができ、かつ高信頼度のヒータ付液晶
表示装置が実現できる。According to the present invention, the power consumption of the heater can be reduced to 0.2 to 0.4 W.
- By setting a high heating rate (1 minute ζ 30℃
It is possible to realize a highly reliable liquid crystal display device with a heater.

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

第１図は本発明の一実施例を示す液晶表示装置の断面図
、第２図は、第１図を下側から見たヒータ構造の平面図
である。 １．２・・・ガラス基板、　　　３．４・・・配向制御
膜、５．６・・・電極、　　　　　８・・・液晶、９・
・・ヒータ、　　　　　　　１２・・・ヒータ用電極、
１３・・・透明導電膜。 ３− 第１図 第２図FIG. 1 is a sectional view of a liquid crystal display device showing an embodiment of the present invention, and FIG. 2 is a plan view of a heater structure as viewed from below in FIG. 1.2... Glass substrate, 3.4... Orientation control film, 5.6... Electrode, 8... Liquid crystal, 9...
...Heater, 12...Heater electrode,
13...Transparent conductive film. 3- Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 内面に電極を形成した２枚のガラス基板間に液晶を設け
た液晶表示装置において、２枚のガラス基板の少なくと
も一方の外面ζこ透明導電膜にてヒータ抵抗を形成し、
そのヒータの消費電力を０．２〜０．５　Ｗ　／　ａｌ
としたことを特徴とする液晶表示装置。In a liquid crystal display device in which a liquid crystal is provided between two glass substrates having electrodes formed on their inner surfaces, a heater resistor is formed with a transparent conductive film on the outer surface of at least one of the two glass substrates,
The power consumption of the heater is 0.2 to 0.5 W/al
A liquid crystal display device characterized by:
JP20618182A 1982-11-26 1982-11-26 Liquid crystal display device Pending JPS5997120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20618182A JPS5997120A (en) 1982-11-26 1982-11-26 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20618182A JPS5997120A (en) 1982-11-26 1982-11-26 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS5997120A true JPS5997120A (en) 1984-06-04

Family

ID=16519152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20618182A Pending JPS5997120A (en) 1982-11-26 1982-11-26 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5997120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523873A (en) * 1994-02-23 1996-06-04 Ois Optical Imaging Systems, Inc. LCD heater with flex circuit buss bars

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523873A (en) * 1994-02-23 1996-06-04 Ois Optical Imaging Systems, Inc. LCD heater with flex circuit buss bars

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