JPS58115421A - Manufacture of electrochromic display - Google Patents

Manufacture of electrochromic display

Info

Publication number
JPS58115421A
JPS58115421A JP56213297A JP21329781A JPS58115421A JP S58115421 A JPS58115421 A JP S58115421A JP 56213297 A JP56213297 A JP 56213297A JP 21329781 A JP21329781 A JP 21329781A JP S58115421 A JPS58115421 A JP S58115421A
Authority
JP
Japan
Prior art keywords
electrolyte
counter electrode
display
lithium
pouring
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
JP56213297A
Other languages
Japanese (ja)
Other versions
JPH044570B2 (en
Inventor
Minoru Yazaki
矢崎　稔
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP56213297A priority Critical patent/JPS58115421A/en
Publication of JPS58115421A publication Critical patent/JPS58115421A/en
Publication of JPH044570B2 publication Critical patent/JPH044570B2/ja
Granted 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • G02F1/1524—Transition metal compounds
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • G02F1/1524—Transition metal compounds
    • G02F1/15245—Transition metal compounds based on iridium oxide or hydroxide
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/157—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/155—Electrodes
    • G02F2001/1555—Counter electrode

Abstract

PURPOSE:To improve the display property, by leaving a counter electrode in the air or in the atmosphere of the constant steam density after heating or vacuuming or dehydrating in the inactive gas and by adsorbing water and pouring an electrolyte prior to pour the counter electrode into the electrolyte. CONSTITUTION:A transition metallic oxide such as WO3, MoO3 and Ir2O3 is used as a display material. A counter electrode consists of active carbon or carbon black. The substance in which 0.1-2.0M/l borofluoride lithium or lithium perchlorate is incorporated in propylene carbonate or gamma-butyllactone is used as an electrolyte. The counter electrode is left in the air or in the atmosphere of the constant steam density after heating or vacuuming or dehydrating in the inactive gas prior to pour the counter electrode into the electrolyte and is allowed to adsorb water and a pouring of the electrolyte is performed. Moisture density of the electrolyte in a display material after pouring the electrolyte is preferably 1.0-2.5wt%.

Description

【発明の詳細な説明】 本発明は電気化学的酸化還元反応を利用した表示体に間
し、特に対向電極材料に活性炭又はカーボンブラックを
用いたエレクトロクロミック表示体（以下ＭＯＤと略す
）の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display using an electrochemical redox reaction, and in particular to a method for manufacturing an electrochromic display (hereinafter abbreviated as MOD) using activated carbon or carbon black as a counter electrode material. It is related to.

一般にＩＯＤは表示電極と対向電極の間に電解質を介在
させた構造を有し、表示電極と対向電極間に直流電圧を
印加し、ｌ０ＩＩ物質に通電することにより発色又は消
色させパターン表示を可能としたものである。発色−消
色を可逆的に進行させ長寿命のＩＣ０Ｄを得るためには
、発消色にともなう表示電極の電気化学反応と対向電極
の電気化学的反応が可逆的でなければならない。Generally, an IOD has a structure in which an electrolyte is interposed between a display electrode and a counter electrode, and by applying a DC voltage between the display electrode and the counter electrode and energizing the l0II material, it is possible to display a pattern by coloring or decoloring. That is. In order to reversibly progress color development and color decolorization and obtain a long-life IC0D, the electrochemical reaction of the display electrode and the electrochemical reaction of the counter electrode that accompany color development and decolorization must be reversible.

本出願人は、先に活性炭、カーボンブラックがそれらの
もつ、超微細構造、立体的鎖状構造でしかも大表面積で
あることによる電気化学反応の可逆的な進行を見い出し
、１０Ｄ対向電極材料として用いることにより、長寿命
化を図ることのできるｌ＠Ｄｔｔ提供した。このＩＯＤ
は表示電極に、ＶＯ，等の遷移金属階化物を用いた場合
においては、電解質としてホウ７ツ化リチウム、過塩素
醗リチウムをプロピレンカルボナート（ｐ−ｏ）又はγ
−ブチルラクトン（ｒ−ＢＩＩ）に溶解し更に水を混合
したものを使用することで、応答速度の連い着消色駆動
寿命の長いｌｌ０Ｄが得られた。The present applicant has previously discovered that activated carbon and carbon black exhibit reversible progress in electrochemical reactions due to their ultrafine structure, three-dimensional chain structure, and large surface area, and have used them as 10D counter electrode materials. As a result, we have provided l@Dtt that can extend its life. This IOD
When a transition metal oxide such as VO is used for the display electrode, lithium boro7tride, lithium perchloride is used as the electrolyte, and propylene carbonate (po) or γ
- By using a solution dissolved in butyllactone (r-BII) and further mixed with water, an 110D with high response speed and long coloring/decoloring drive life was obtained.

このＩＯＤを得るための従来製造方法によると対極は脱
水したものを用い１．０〜２．　ｓ　Ｗｔｌの水はあら
かじめ電解液中に添加したものを表示体中に注入してい
た。しかしながらこの製造方法において次の様な改良す
べき点を有していた。それは、脱水した活性炭及びカー
ボンブラックは電解液との測れ性が比咬的悪く、注液後
しばらく放置すると気泡が生じ易い。この気泡は場合に
よっては表示極表面に付着したりする。又、この気泡が
対極中に残り一種の空気電池な形成し、表示の一部に応
答速度の異なった所を生じたりする。更に表示たものは
無水系とは界面現象が異なり色むらを生じ易かった。According to the conventional manufacturing method for obtaining this IOD, the counter electrode is made of a dehydrated material with an IOD of 1.0 to 2. The water of s Wtl was added in advance to an electrolytic solution and then injected into the display body. However, this manufacturing method had the following points to be improved. The reason is that dehydrated activated carbon and carbon black have poor measurability with the electrolyte, and bubbles tend to form if left for a while after injection. In some cases, these bubbles may adhere to the surface of the display electrode. In addition, these bubbles remain in the counter electrode and form a kind of air cell, causing parts of the display to have different response speeds. Furthermore, the displayed materials had different interfacial phenomena from those of the anhydrous type, and were likely to cause color unevenness.

本発明は上記点に留意してなされたものである。即ち、
対向電極を液注入前に加熱、真空、下話性気体中で脱水
した後、空中又は一定木蒸気ａｍ雰囲気中に放置し、必
要量の水分を吸着させ、電解波注入を行ない対向電極付
着の水分の電解液への拡散により表示体中の水分濃度を
コントロールした゛もので１．この方法により、対向電
極８表示電極と電解液の濡れ性の良い表示特性の優れた
Ｎ。The present invention has been made with the above points in mind. That is,
Before injecting the liquid, the counter electrode is heated, vacuumed, and dehydrated in an aqueous gas, then left in the air or in a constant wood vapor atmosphere to adsorb the required amount of moisture, and electrolytic waves are injected to prevent the counter electrode from adhering. 1. The moisture concentration in the display is controlled by the diffusion of moisture into the electrolyte. By this method, N has excellent display characteristics with good wettability between the counter electrode 8 display electrode and the electrolyte.

Ｄを作り出したものである。又、対極の液注入前の脱水
は、活性炭、カーボンブラックの吸着性から空気中の水
分を＠湿しているので表示体中の水分量のバラツキをな
すために行なう。従って一定　−水蒸気濃度雰囲気中で
飽和水蒸気量が＠湿量とする場合には省略することも可
能である。It is what created D. Furthermore, dehydration before injecting the counter electrode liquid is carried out in order to compensate for variations in the amount of water in the display, since activated carbon and carbon black absorb moisture from the air due to their adsorption properties. Therefore, it can be omitted if the saturated water vapor amount is @humidity in a constant - water vapor concentration atmosphere.

以下、実施例により本発明を更に具体的に説明する。Hereinafter, the present invention will be explained in more detail with reference to Examples.

実施例 第１図は本発明罵ＯＤのセル構造を示した図である。透
明ガラス基板１をアルカリ洗浄、水洗。Embodiment FIG. 1 is a diagram showing a cell structure of an OD according to the present invention. The transparent glass substrate 1 is washed with alkali and water.

乾燥したものに、メタルマスクな用いて工’ｒＬＨＯＢ
を電子ビーム真空蒸着により約５ｏｏｏｉ蒸着し透明電
極２を形成する。次にＮｏ物質としてＷＯｌを同じく電
子ビ、−五真空蒸着により５ｏｏｏｉ形成し表示電極５
とする。この時の基板温度は約１００℃でメタルマスク
な用いた０次に対向電極４は、活性炭粉末に約１５ｖｔ
−のカルｌキシメチルセルロースナトリウム及び約４０
ｗｔ−の水を混合しよ（混練した後、約２−の切込みの
テ１からなるエキスバンプイツトメタル５を芯に油圧プ
レスによりプレス成形した。この時のプレス圧は５　ｔ
ｏｎ／−である、それを約１００℃て乾燥し水分を除去
した後、この対向電極の端部の一部を壊し、Ｔｉメッシ
ａｉを出しこれにＴ１からなるリード＄１４をスｌット
溶接し、対向電極４を作成した。次にリード線取出口６
及び液注入ロア迄大明洗浄した背景容Ｉ１９に対向電極
４のリード１１１６をリード線取出口８に固定した。こ
の固定封止には二液性エポキシを用いた。この対向電極
４迄固定された背景容器９を真空雰Ｈ％中１×１０″″
’　ＴＯｒｒ中で約２時間真空脱水した後湿度７４％の
空気中に約１時間放置した。この時の重量変化は約１０
５８９であった。これに白色多孔質板１０を入れ、先は
ど作成したガラス基板１とを貼り合せた。After drying, use a metal mask.
A transparent electrode 2 is formed by depositing about 5000 yen of the transparent electrode 2 by electron beam vacuum evaporation. Next, 5oooi of WOl was formed as a No material by electron beam evaporation, and display electrode 5 was formed.
shall be. The substrate temperature at this time was about 100°C, and the zero-order counter electrode 4, which was used as a metal mask, was made of activated carbon powder with a voltage of about 15V.
- cal-xymethylcellulose sodium and about 40
(After kneading, the mixture was press-formed using a hydraulic press using an expanded metal 5 with an approximately 2-inch incision as a core.The press pressure at this time was 5 tons.
After drying it at about 100℃ to remove moisture, break a part of the end of this counter electrode, take out the Ti mesh ai, and insert the lead $14 made of T1 into it. Welding was performed to create a counter electrode 4. Next, lead wire outlet 6
The lead 1116 of the counter electrode 4 was fixed to the lead wire outlet 8 in the background volume I19 which had been thoroughly cleaned up to the liquid injection lower part. Two-component epoxy was used for this fixed sealing. The background container 9 fixed up to the counter electrode 4 was placed in a vacuum atmosphere of 1×10''
' After vacuum dehydration in TOrr for about 2 hours, it was left in air with a humidity of 74% for about 1 hour. The weight change at this time is about 10
It was 589. A white porous plate 10 was placed in this, and the glass substrate 1 previously prepared was bonded thereto.

このように対向電極に吸湿させたＩＯＤセルに電解液１
１を注入ロアより注入し、液入口を封止した。電解液は
１ｕ／ｌのホウフッ化リチウムをプロピレンカルボナー
トに溶解したものを用いた。Electrolyte 1 was added to the IOD cell with the opposite electrode absorbing moisture.
1 was injected from the injection lower, and the liquid inlet was sealed. The electrolytic solution used was one in which 1 u/l of lithium fluoroborate was dissolved in propylene carbonate.

このようにして作成された］１ｔＯＩ）は、約１時間で
水分量が一定化し約’Ｌ７ｗｔ％であった。この値はセ
ル容積及び対極重量変化から予想される水分量とほぼ一
致した。得られたＩｃ０Ｄは、色むらもなく一過間放置
においても気泡の発生はほとんど見られなかった。又同
時に上記構成で５０個作成したが水分量のバラツキもほ
とんどなく又、表示特性も良好で歩留りも９３襲であっ
た。更に、比較のために従来法におけるｍ０Ｄｌｌｌ造
によると３０個作成した時の歩留りは約６０−であった
。[1tOI] prepared in this way had a constant moisture content of about 7 wt% in about 1 hour. This value almost coincided with the water content expected from changes in cell volume and counter electrode weight. The obtained Ic0D had no uneven color and hardly any bubbles were observed even after being left for one hour. At the same time, 50 pieces were made with the above configuration, and there was almost no variation in moisture content, the display characteristics were good, and the yield was 93%. Furthermore, for comparison, when 30 pieces were manufactured using the conventional method, the yield was about 60.

以上の如く本発明方法によれば、あらかじめ対向電極に
吸湿させ、電解液との濡れ性を改善することにより表示
特性の優れたＩ＠Ｄが得られた。As described above, according to the method of the present invention, an I@D with excellent display characteristics was obtained by allowing the counter electrode to absorb moisture in advance to improve wettability with the electrolytic solution.

尚、本発明における成分の限定理由について述べると、
電解質としてのホウフッ化リチウム、過塩素酸リチウム
の量はＱ、ＩＭ／ｌより少ないと電解液の導電性が小さ
く、駆動電圧が水の分解電圧より高くなり水の電気分解
が起こり又、２Ｍ／ｌ。In addition, the reasons for limiting the components in the present invention are as follows:
If the amount of lithium borofluoride or lithium perchlorate as an electrolyte is less than Q, IM/l, the conductivity of the electrolyte will be low, and the driving voltage will be higher than the water decomposition voltage, causing water electrolysis. l.

を越えても導電性がほとんど変わらす又低温において再
結晶を生ずるため１１〜２．０　Ｍ　／　ｔに限定した
。又、表示セル中の水分量が１ｖｔ％より少ないと、水
による応答速度の改良が顕著に現われず更に寿命試験に
おける点滅回数の増加により応答速度変化を生じ易い。Even if the conductivity is exceeded, the conductivity hardly changes, and recrystallization occurs at low temperatures, so it was limited to 11 to 2.0 M/t. Furthermore, if the water content in the display cell is less than 1 vt%, the improvement in response speed due to water will not be noticeable, and furthermore, the response speed will likely change due to an increase in the number of blinks in the life test.

又、２．５ｖｔ％を越えると寿命試験において、書込情
夫のバランスが悪くなり、いわゆる消残り現象を生じ易
い更に長期放置により１０．の液への溶出を生じ易くな
るため１．０〜２．５ｖｔ％に限定される。又、本発明
では表示材料としてＷＯ８を使用した例を示したがＭｏ
ｂ、、工ｒ、０８等の遷移金属酸化物を使用した場合で
も同様の効果が期待できるものであるIn addition, if it exceeds 2.5vt%, the balance of the writing speed becomes poor in the life test, and the so-called residual phenomenon tends to occur. It is limited to 1.0 to 2.5 vt% because it tends to elute into the liquid. Further, in the present invention, an example was shown in which WO8 was used as the display material, but Mo
Similar effects can be expected when using transition metal oxides such as B, R, 08, etc.

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

第１図は本発明ＥＱＤのセル構造の一例を示した略図で
ある。 １・・・・・・表示電極基板 ２・・・・・・透明電極 ３・・・・・・表示電極 ４・・・・・・対向電極 ５・・・・・・金　網 ６・−・・・リード線 ７・・・・・・液注入口 ８・・・・・・リード線取出口 ９・・・・・・背景容器 １０・・・白色多孔質板 １１・・・電解液 以　　上 出願人　株式会社趣訪精工舎 代理人　弁理士　最上　　務FIG. 1 is a schematic diagram showing an example of the cell structure of the EQD of the present invention. 1... Display electrode substrate 2... Transparent electrode 3... Display electrode 4... Counter electrode 5... Wire mesh 6... ...Lead wire 7...Liquid inlet 8...Lead wire outlet 9...Background container 10...White porous plate 11...Electrolyte and above Applicant Shuwa Seikosha Co., Ltd. Representative Patent Attorney Tsutomu Mogami

Claims (1)

【特許請求の範囲】 （リ　電気化学的に着消色が可能な表示材料と電解液、
対向電極の組合せからなるエレクトロクロミック表示体
において、該対向電極が活性炭或いはカーボンブラック
からなり、電解液としてプロピレンカルボナート又はｒ
−ブチルラクトンに、（Ｌ１〜２．０Ｍ／ｌのホウ７ツ
化リチウム又は過塩素酸リチウムを含有したものを用い
、前記対向電極な電解液注入前に、加熱又は真空或いは
不活性気体中で脱水した後空気中又は−走水蒸気濃度雰
囲気中に放置し、水分吸着させ電解液注入を行なったこ
とを特徴とするエレクトロクロ主ツク表示体の製造方法
。 （２ン　　液注入後の表示体中電解液の水分浸度が１．
０〜２．５ｗｔ％の範囲内であることを特徴とする特許
請求の範囲第１項記載のエレクトロクロミック表示体の
製造方法。[Claims] (Li) Display material and electrolyte that can be electrochemically colored and erased
In an electrochromic display consisting of a combination of counter electrodes, the counter electrode is made of activated carbon or carbon black, and the electrolyte is propylene carbonate or r
- Butyllactone containing (L1 to 2.0 M/l) lithium boro7tride or lithium perchlorate is used, and before injecting the electrolyte into the counter electrode, heat or in vacuum or in an inert gas. A method for manufacturing an electrochrome main display, characterized in that after dehydration, it is left in the air or in an atmosphere with a running water vapor concentration to adsorb moisture and inject an electrolytic solution. The water immersion degree of the electrolyte is 1.
2. The method for producing an electrochromic display according to claim 1, wherein the content is within the range of 0 to 2.5 wt%.
JP56213297A 1981-12-28 1981-12-28 Manufacture of electrochromic display Granted JPS58115421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56213297A JPS58115421A (en) 1981-12-28 1981-12-28 Manufacture of electrochromic display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56213297A JPS58115421A (en) 1981-12-28 1981-12-28 Manufacture of electrochromic display

Publications (2)

Publication Number Publication Date
JPS58115421A true JPS58115421A (en) 1983-07-09
JPH044570B2 JPH044570B2 (en) 1992-01-28

Family

ID=16636783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56213297A Granted JPS58115421A (en) 1981-12-28 1981-12-28 Manufacture of electrochromic display

Country Status (1)

Country Link
JP (1) JPS58115421A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799621A (en) * 1980-12-12 1982-06-21 Matsushita Electric Ind Co Ltd Production of electrochromic display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799621A (en) * 1980-12-12 1982-06-21 Matsushita Electric Ind Co Ltd Production of electrochromic display device

Also Published As

Publication number Publication date
JPH044570B2 (en) 1992-01-28

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