JPS58142318A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS58142318A
JPS58142318A JP2431382A JP2431382A JPS58142318A JP S58142318 A JPS58142318 A JP S58142318A JP 2431382 A JP2431382 A JP 2431382A JP 2431382 A JP2431382 A JP 2431382A JP S58142318 A JPS58142318 A JP S58142318A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
transparent
display element
resistance heating
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
JP2431382A
Other languages
Japanese (ja)
Inventor
Masahiro Kawamoto
河元　正博
Netsuo Okazaki
岡崎　熱郎
Yutaka Okada
裕 岡田
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
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2431382A priority Critical patent/JPS58142318A/en
Publication of JPS58142318A publication Critical patent/JPS58142318A/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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To decrease the voltage and to enhance the transmissivity, by forming a resistance heating element as if it covers a display pattern while minimizing the area without damaging the pattern. CONSTITUTION:A liq. crystal 13 is held in about 10mum thickness between a transparent substrate 12 having a transparent common electrode 11 and a transparent substrate 12' having a transparent segment electrode 11', and the substrates are fixed with a sealant 14. A transparent resistance heating element 15 is partially formed on the underside of the substrate 2 opposite to the electrode 11 in a shape almost corresponding to the display pattern 20 as if the element 15 covers the pattern 20 while minimizing the area without damaging display. The electrode terminals 16 of the element 15 are arranged so as to make the distance between the terminals shortest and the resistance lowest, and the terminals are led to a power source 17 through parts where the pattern 20 is not present. Thus, a liq. crystal display element is fabricated.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 本発明は液晶表示素子を加熱するための抵抗加熱体を具
備してなる液晶表示素子に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a liquid crystal display element comprising a resistance heating element for heating the liquid crystal display element.

〔従来技術とその問題点〕[Prior art and its problems]

一般響二液晶表示素子の応答速度はａＩＩ７Ｆに強く依
存し、室温では数１０〜数１００１１１秒であるが低温
では遅くなり、例えば０℃以下になると数秒かかる。従
って液晶表示素子を０℃以下で使用する場合応答速度が
極端１；遍くなり、はとんど使用不能となる。こうした
液晶表示素子の応答速度を改善する（二は液晶材料の低
粘度化あるいは液晶層の厚さを薄くする方法があるが、
前者では大幅に改善できず後者では現在一般的なｌＯμ
より菱に薄くする必要のため製造上困難を生ずる。最も
簡単に応答速度を改善する１：は液晶表示素子の内面も
しくは外面に抵抗加熱体を全面Ｃ：設けてこれｉ：電流
を通じて液晶表示素子を加熱し外気の温Ｉが低下した時
４：も這い応答速度を可能とする方法が知られている。The response speed of a general Hibiki liquid crystal display element strongly depends on aII7F, and is several tens to hundreds of seconds at room temperature, but slows down at low temperatures, for example, it takes several seconds at temperatures below 0°C. Therefore, when a liquid crystal display device is used at temperatures below 0° C., the response speed becomes extremely uneven and becomes almost unusable. Improving the response speed of these liquid crystal display elements (the second method is to lower the viscosity of the liquid crystal material or reduce the thickness of the liquid crystal layer)
The former cannot be significantly improved, and the latter is currently common lOμ
The need to make it even thinner creates manufacturing difficulties. The simplest way to improve the response speed is to 1: provide a resistance heating element all over the inner or outer surface of the liquid crystal display element. Methods are known that allow for faster response speeds.

以下に従来の液晶表示素子の構成例を説明する。An example of the structure of a conventional liquid crystal display element will be explained below.

従来の液晶表示素子の構成例を第１図、第２（！３ζ二
示す。透明な共通電１ｋｌを有する透明基板２と透明な
セグメント電機１′　　を有する透明基板２′の間１：
液晶３を約ｌＯ声の厚さく；で保持しシール材４にて固
定し更−二透明基板２の共通電極１とは反対の面ζ：透
明な抵抗加熱体器を表示パターン１゜を含む素子全面に
設け、該抵抗加熱体の電極端子６を電＄　７１：導びき
、従来の液晶表示素子が構成される。かくして抵抗加熱
体ｓ＋＝電流が流れ、これ（二より液晶表示素子全体が
加熱され、外気温度が低下しても応答速度が速くできる
。An example of the structure of a conventional liquid crystal display element is shown in FIGS.
The liquid crystal 3 is held with a thickness of about 10 mm and fixed with a sealing material 4, and then the surface of the transparent substrate 2 opposite to the common electrode 1 ζ: includes a display pattern of 1° with a transparent resistance heating element. A conventional liquid crystal display element is constructed by providing the electrode terminal 6 of the resistance heating body over the entire surface of the element and guiding the electrode terminal 6 of the resistance heating element to an electric current. In this way, current flows through the resistance heating element s+, which heats the entire liquid crystal display element, increasing the response speed even when the outside temperature drops.

しかしながら、従来例では全面を加熱するごとく抵抗加
熱体が設けられているため、電源７の電圧あるいは抵抗
加熱体の材質Ｃ：制約を生じ、特に液晶表示素子の面積
が広くなるにつれ実用上困難となる。すなわち透明な抵
抗加熱体として酸化イリジウムや酸化スズの薄膜が使用
するのが一般的であ本が、これらの抵抗加熱体は抵抗が
高く、高い電圧の電源を必要とするため、実用上不刺で
ある。また金などを薄く蒸着して抵抗加熱体の抵抗を下
げることは可能である畔透過率が著しく低下するため、
液晶表示素子の明るさとコントラストを悪くしたり１色
付いてしまうという問題を生ずる。However, in the conventional example, since a resistance heating element is provided to heat the entire surface, there are restrictions on the voltage of the power source 7 and the material C of the resistance heating element, which becomes difficult in practice, especially as the area of the liquid crystal display element becomes larger. Become. In other words, a thin film of iridium oxide or tin oxide is generally used as a transparent resistance heating element, but these resistance heating elements have high resistance and require a high voltage power source, so they are not practical for non-piercing purposes. It is. It is also possible to lower the resistance of the resistance heating element by depositing a thin layer of gold or the like, but this will significantly reduce the ridge transmittance.
This causes problems such as deterioration of the brightness and contrast of the liquid crystal display element and the appearance of one color.

本発明は上述した従来素子の欠点を改良したもので、抵
抗加熱体を表示パターンをそこなうことなく、最小の面
積にて表示パターンを覆うごとく設こすこと１：より、
電圧の低減と透過率の向上が可能な液晶表示素子を提供
するものである。The present invention improves the above-mentioned drawbacks of the conventional element, and includes the following steps: 1. A resistance heating element is provided to cover the display pattern in a minimum area without damaging the display pattern.
The present invention provides a liquid crystal display element that can reduce voltage and improve transmittance.

〔発明の概要〕[Summary of the invention]

すなわち、本発明は透明な共通電極を有する透明基板と
透明なセグメント電極を有する透明基社間Ｃ：液晶を保
持してなる液晶表示素子（；おいて、前記液晶表示素子
の内面もしくは外面（二表示パターンにほぼ対応した形
状でかつ表示をそこなわずに必要十分な面積にて表示パ
ターンを覆うごとく部分的Ｃ：透明な抵抗加熱体を設け
、該抵抗加熱体の電極端子を最も抵抗値が低くなるごと
く形状に合せて低抵抗体Ｃ：て設け、前記電機端子を前
記液晶表示素子の表示パターンの無い場所を通して引出
したことを特徴とする液晶表示素子Ｃ；関する。That is, the present invention provides a transparent substrate having a transparent common electrode and a transparent substrate having transparent segment electrodes. Partial C: A transparent resistance heating element is provided in a shape that almost corresponds to the display pattern and covers the display pattern in a necessary and sufficient area without damaging the display, and the electrode terminal of the resistance heating element is connected to the electrode terminal with the highest resistance value. The present invention relates to a liquid crystal display element C, characterized in that a low resistance element C is provided in accordance with the shape of the liquid crystal display element, and the electric terminal is drawn out through a place where there is no display pattern of the liquid crystal display element.

〔発明の効果〕〔Effect of the invention〕

本発明は従来の液晶表示素子のごとく全面Ｃ；抵抗加熱
体を設けて、全面を加熱せずビニ、表示−二必要な部分
のみ加熱できるように抵抗加熱体を設ければよい。従っ
て、抵抗加熱体の端子間抵抗が低くなり加熱用電源の電
圧が低くでき、また抵抗加熱体のシート抵抗自体も従来
はど低い必要がないため透過率が良く、液晶表示素子の
コントラストや明るさを低下させない。更＆：液晶表示
素子全体を加熱する必要がないため、素子全体の面積が
大きくなっても電圧や透過率ζ；あまり影響しないとい
う利点がある。In the present invention, as in conventional liquid crystal display elements, a resistance heating element may be provided on the entire surface of the display so that only the necessary areas can be heated without heating the entire surface. Therefore, the resistance between the terminals of the resistance heating element is lowered, and the voltage of the heating power supply can be lowered, and the sheet resistance of the resistance heating element itself does not need to be as low as conventionally, so the transmittance is good, and the contrast and brightness of the liquid crystal display element is improved. Do not reduce the quality. Further: Since there is no need to heat the entire liquid crystal display element, there is an advantage that even if the area of the entire element becomes large, the voltage and transmittance ζ are not affected much.

すなわち、表示パターンの面積のみに性能が関係する。In other words, performance is related only to the area of the display pattern.

〔発明の実施例〕[Embodiments of the invention]

以下Ｃ：実施例を具体的４：第３図、第４図にて説明す
る。第３図のごとく透明な共通電極１１を有する透明基
板１２と透明なセグメント電ｊｉｌｔ’を有する透明基
板１２′の間に液晶１３を約１０μの厚さにて保持し、
シール材１４（：て固定した。更（＝透明基板１２の共
通電ａ１１とは反対の面１：＄４図のとと（表示パター
ン２０にほば対応した形状で、かつ表示をそこなわず６
二必要十分な面積にて表示パターン２０を覆うごとく部
分的（；透明な抵抗加熱体１５を設ける。そして、抵抗
加熱体１５の電機端子１６は最も端子間距離が短かく抵
抗が低くなるように＠４図のごとく設け、各ｔ＆喘子は
表示パターン２０の無い場所を通して引出し、第３図の
ごとく、電源１７に導びき、本発明に係る液晶表示素子
を構成した。Hereinafter, C: Example will be specifically explained with reference to 4: FIGS. 3 and 4. As shown in FIG. 3, a liquid crystal 13 with a thickness of about 10μ is held between a transparent substrate 12 having a transparent common electrode 11 and a transparent substrate 12' having a transparent segment electrode.
The sealing material 14 (:) was fixed with the sealing material 14 (= side 1 of the transparent substrate 12 opposite to the common electrode a11: $4 and the shape shown in the figure (with a shape that roughly corresponds to the display pattern 20 and without damaging the display). 6
2. A transparent resistance heating element 15 is provided partially so as to cover the display pattern 20 with a necessary and sufficient area.The electrical terminals 16 of the resistance heating element 15 are arranged so that the distance between the terminals is the shortest and the resistance is the lowest. It was provided as shown in Figure 4, and each T&panel was pulled out through a place where there was no display pattern 20, and led to a power source 17 as shown in Figure 3, thereby constructing a liquid crystal display element according to the present invention.

本発明に係る液晶表示素子の抵抗加熱体としてシート抵
抗２００Ω／口の酸化インジウムを用いても、従来素子
Ｃ：比較し、低電圧で加熱できた。また金を蒸着して用
いた場合、従来素子よりも抵抗は高くてよいため透過率
が向上し、コントラスト、明るさく二はとんど影譬がな
かった。Even when indium oxide with a sheet resistance of 200 Ω/gate was used as the resistance heating body of the liquid crystal display element according to the present invention, heating was possible at a lower voltage compared to the conventional element C. Furthermore, when gold is vapor-deposited, the resistance can be higher than that of conventional elements, so the transmittance is improved, and there is almost no difference in contrast or brightness.

〔発明の他の実施例〕[Other embodiments of the invention]

上記実施例では、液晶表示素子の外面に１接抵抗加熱体
を設けた例を示したが別Ｉ：透明プラスチックシートや
ガラス板に抵抗加熱体を設けてこれを液晶表示素子１二
密着してもよい。In the above embodiment, an example was shown in which one contact resistance heating body was provided on the outer surface of the liquid crystal display element. Good too.

更（：＠５図のごとく、透明な共通電１ｓＩＡｌｌを有
する透明基板１２と透明基板１２’の上Ｃ；抵抗加熱体
１５を表示パターンＣ二対応して部分的に設け、電極端
子を施こし、更（：この上−６絶縁膜１８を介して透明
なセグメント電ａ１１′を設けた透明基板１２′の間−
二液晶１３を保持しシール材１４にで気密シールして本
発明にかかる他の液晶表示素子を構成した。本実施例で
は抵抗加熱体１５と液晶１３とが数１０００　Ｉｔの絶
縁層１８と１ｏｏｏＸ程度のセグメント電極１１′を介
して接しているため、前記実施例のとと（ｉｓ程度の厚
さのガラス板を介して接するのと異なり熱の伝達も速く
、電力も少なくてすむという特徴がある。加熱用の電源
の電圧は前記実施例と同様（二従来素子より低く、透過
率も向上した。Furthermore, as shown in Figure 5, the transparent substrate 12 and the transparent substrate 12' having the transparent common electrode 1sIAll are provided with a resistive heating element 15 partially corresponding to the display pattern C2, and an electrode terminal is provided. , further (: between the transparent substrates 12' on which the transparent segment electrodes a11' are provided via the insulating film 18).
Two liquid crystals 13 were held and hermetically sealed with a sealing material 14 to construct another liquid crystal display element according to the present invention. In this embodiment, the resistance heating element 15 and the liquid crystal 13 are in contact with each other through the insulating layer 18 of several thousand It and the segment electrode 11' of about 1 ooo Unlike contact through a plate, heat transfer is faster and less power is required.The voltage of the heating power source is the same as in the previous example (lower than the two conventional elements, and the transmittance is also improved).

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

＠１図は従来の液晶表示素子の断面を示す模式図、第２
図は従来の液晶表示素子の平面を示す模式図、第３図は
本発明に係る液晶表示素子の断面を示す模式図、第４図
は本発明に係る液晶表示素子の平面を示す模式図、８ｇ
５図は本発明の他の実施例を示す模式図である。 １１・・・共通電＠　　　　　　１１’・・・セグメン
ト電極１２．１２’・・・透明型ＶＩＡ１３・・・液晶
１４・・・シール材　　　　　１５・・・抵抗加熱体１
６・・・電―端子　　　　　１７・・・電源１８・・・
絶縁膜　　　　　　２０・・・表示バターソ代理人　弁
理士　則　近　謝　佑 （ほか１名） 第１図 第２図 第３図 第４図 １〃 第５図@Figure 1 is a schematic diagram showing the cross section of a conventional liquid crystal display element, Figure 2
FIG. 3 is a schematic diagram showing a plane of a conventional liquid crystal display element, FIG. 3 is a schematic diagram showing a cross section of a liquid crystal display element according to the present invention, and FIG. 4 is a schematic diagram showing a plane of a liquid crystal display element according to the present invention. 8g
FIG. 5 is a schematic diagram showing another embodiment of the present invention. 11... Common electrode @ 11'... Segment electrode 12. 12'... Transparent VIA 13... Liquid crystal 14... Seal material 15... Resistance heating element 1
6... Power terminal 17... Power supply 18...
Insulating film 20...Display Bataso agent Patent attorney Nori Chika Hsieh Yu (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 4 Figure 1 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 透明な共通電極を有する透明基板と透明なセグメント電
極を有する透明基板間Ｃ−液晶を保持してなる液晶表示
素子において、前記液晶表示素子の内面もしくは外面監
；素示パターンにほぼ対応した形状でかつ表示をそこな
わずＣ二必要十分な面積にて表示パターンを覆うごとく
部分的（；透明な抵抗加熱体を設け、該抵抗加熱体の電
極端子を最も抵抗値が低くなるごとく形状に合せて低抵
抗体にて設け、前記電極端子を前記液晶表示素子の表子
パター　ンの無い場所を通して引出したことを特徴とす
る液晶表示素子。In a liquid crystal display element formed by holding a C-liquid crystal between a transparent substrate having a transparent common electrode and a transparent substrate having transparent segment electrodes, an inner or outer surface of the liquid crystal display element; And without damaging the display, partially cover the display pattern with a necessary and sufficient area (a transparent resistance heating element is provided, and the electrode terminals of the resistance heating element are aligned with the shape so that the resistance value is the lowest. A liquid crystal display element, characterized in that the electrode terminal is provided with a low-resistance material, and the electrode terminal is drawn out through a place where there is no front pattern of the liquid crystal display element.
JP2431382A 1982-02-19 1982-02-19 Liquid crystal display element Pending JPS58142318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2431382A JPS58142318A (en) 1982-02-19 1982-02-19 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2431382A JPS58142318A (en) 1982-02-19 1982-02-19 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS58142318A true JPS58142318A (en) 1983-08-24

Family

ID=12134687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2431382A Pending JPS58142318A (en) 1982-02-19 1982-02-19 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS58142318A (en)

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