JPS63271893A - Driving of electrochromic element - Google Patents
Driving of electrochromic elementInfo
- Publication number
- JPS63271893A JPS63271893A JP62105420A JP10542087A JPS63271893A JP S63271893 A JPS63271893 A JP S63271893A JP 62105420 A JP62105420 A JP 62105420A JP 10542087 A JP10542087 A JP 10542087A JP S63271893 A JPS63271893 A JP S63271893A
- Authority
- JP
- Japan
- Prior art keywords
- coloring
- voltage
- gradually
- discoloring
- decreasing
- 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
Links
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000001965 increasing effect Effects 0.000 claims abstract description 10
- 230000003247 decreasing effect Effects 0.000 claims abstract description 9
- 238000004040 coloring Methods 0.000 abstract description 30
- 230000002093 peripheral effect Effects 0.000 abstract description 17
- 230000007423 decrease Effects 0.000 abstract description 15
- 230000005611 electricity Effects 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract 2
- 230000002040 relaxant effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000006479 redox reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
本発明はエレクトロクロミック素子の駆動方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a method for driving an electrochromic device.
（従来の技術及び発明が解決しようとする問題点）エレ
クトロクロミック（以下、ＥＣという。）素子の通常の
駆動方法は、第３図に示すように着色時に所定の定電圧
を急に印加し、潤色時に逆の定電圧を急に印加するとい
うものであるから、結局ＥＣ素子は矩形状の定電圧によ
って駆動されているといえる。面積の小さいＥＣ素子（
例えば、１００ｃｆｆｌ以下）はこの方法によって良好
に駆動することができる。(Prior art and problems to be solved by the invention) A normal method for driving an electrochromic (hereinafter referred to as EC) element is to suddenly apply a predetermined constant voltage during coloring, as shown in FIG. Since a reverse constant voltage is suddenly applied during color embellishment, it can be said that the EC element is driven by a rectangular constant voltage. Small area EC element (
For example, 100 cffl or less) can be favorably driven by this method.
ところが、面積の大きいＥＣ素子（例えば、１００Ｃｄ
以上）を上記方法によって駆動すると、第３図に光透過
事変化を比較して示すように、着色時にＥＣ素子の周辺
部が急に濃く着色してから中央部が徐々に着色してゆく
という問題が顕在化する。なぜなら、ＥＣ素子は容口性
を持っているため、第３図に示すように矩形状の電圧の
立上がり時には過大なラッシュカレントが流れることに
なり、ざらにＥＣ素子に用いられている透明電極は面抵
抗が大きいので、その電極取出し部でおる周辺部に前記
ラッシュカレントが集中して過剰な電気量が注入される
からである。However, EC elements with large areas (for example, 100Cd
When the above) is driven by the above method, as shown in Figure 3 for comparison of light transmission, the peripheral part of the EC element suddenly becomes darkly colored during coloring, and then the central part gradually becomes colored. A problem becomes apparent. This is because EC elements have porosity, so when a rectangular voltage rises, an excessive rush current flows, as shown in Figure 3, and the transparent electrodes used in EC elements This is because, since the sheet resistance is large, the rush current is concentrated in the periphery of the electrode lead-out portion, and an excessive amount of electricity is injected.
また、潤色時にはＥＣ素子の周辺部から急に消色してゆ
くという同様の問題が起こる。Further, when coloring is applied, a similar problem occurs in that the color suddenly disappears from the periphery of the EC element.
ざらに、前記周辺部への過剰電気損の注入が繰り返され
ると、同周辺部にじみや色むらが残ったり、同周辺部が
剥離したりして、ＥＣ素子の寿命が短くなるという不具
合もある。Furthermore, if excessive electrical loss is repeatedly injected into the peripheral area, bleeding or uneven coloring may remain in the peripheral area, or the peripheral area may peel off, resulting in problems such as shortening the life of the EC element. .
発明の構成
（問題点を解決するための手段）
そこで、本発明は前記問題点を解決するために、ＥＣ素
子への印加電圧を漸増又は漸減させて同ＥＣ素子を着色
又は消色するという技術的手段をとった。Structure of the Invention (Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the present invention provides a technique for coloring or decolorizing the EC elements by gradually increasing or decreasing the voltage applied to the EC elements. I took appropriate measures.
（作用）
まず、ＥＣ素子を着色さけるには、同ＥＣ素子への印加
電圧を漸増させる。すると、印加電圧は徐々に増加する
から、ＥＣ素子は容ａ性負荷であるにも拘らず、同ＥＣ
素子への電流も徐々に増加することとなり、ラッシュカ
レントが防止される。(Function) First, in order to avoid coloring the EC element, the voltage applied to the EC element is gradually increased. Then, since the applied voltage gradually increases, even though the EC element is a capacitive load, the same EC
The current to the element also increases gradually, and rush current is prevented.
従って、ＥＣ素子の周辺部への過剰な電気量の注入が緩
和され、ＥＣ素子の周辺部はその着色速度が減少して中
央部とともに徐々に着色する。Therefore, injection of an excessive amount of electricity to the peripheral portion of the EC element is alleviated, and the coloring speed of the peripheral portion of the EC element decreases, and the peripheral portion of the EC element is gradually colored together with the central portion.
次に、ＥＣ素子を消色させるには、同ＥＣ素子への印加
電圧を漸減させる。すると、印加電圧は徐々に減少する
から、着色時と同様、ラッシュカレントが防止される。Next, in order to decolor the EC element, the voltage applied to the EC element is gradually decreased. Then, since the applied voltage gradually decreases, rush current is prevented as in the case of coloring.
従って、ＥＣ素子の周辺部への過剰な電気量の注入が緩
和され、ＥＣ素子の周辺部はその消色速度が減少して中
央部とともに徐々に消色する。Therefore, injection of an excessive amount of electricity into the periphery of the EC element is alleviated, and the decoloring speed of the periphery of the EC element decreases, and the color gradually disappears along with the central part.
（実施例）
以下、本発明を自動車のサンルーフ用のＥＣ素子に具体
化した実施例を第１図及び第２図に従って説明する。(Example) Hereinafter, an example in which the present invention is embodied in an EC element for an automobile sunroof will be described with reference to FIGS. 1 and 2.
第１図に示すように、本実施例のＥＣ調光板としてのサ
ンルーフ１は寸法７００ｍＸ ５００ｍＸ２．５Ｍの強
化無機ガラス板よりなる上部及び下部の基板２ａ、 ２
ｂと、それらの間に形成され透過モードで使用される電
極間寸法４００ｍＸ４００ｍ（セル面積１６００ｃｆｆ
ｌ）のＥＣ素子３とにより構成されている。As shown in FIG. 1, a sunroof 1 as an EC dimming plate of this embodiment has upper and lower substrates 2a and 2 made of reinforced inorganic glass plates with dimensions of 700m x 500m x 2.5M.
b, and the interelectrode size 400m x 400m formed between them and used in transmission mode (cell area 1600cff
The EC element 3 shown in FIG.
前記ＥＣ素子３は、
■ 上部基板２ａの下面に形成された厚さ約２０００Ａ
のＩＴＯ（インジウムスズ酸化物）膜よりなる上部透明
電極４、
■ 同上部透明電極４の下面に電解重合により形成され
た厚さ約６０００Ａのポリアニリン膜よりなる酸化発色
層５、
■ 下部基板２ｂの上面に形成された厚さ約２０００Ａ
のＩＴＯ膜よりなる下部透明電極８、■ 同下部透明電
極８の上面に積層された厚さ約６０００Ａの酸化タング
ステン膜よりなる還元発色層７、及び、
■ 両基板２ａ、２ｂ間を一定間隔に支持するスペー＋
Ｊ ９ ａと前記酸化発色層５と還元発色層７との間に
満たされた、ポリエチレンオキサイドと１Ｍ ＬｉＣ
ｌＯ４／プロピレンカーボネイトとが１：６で配合され
てなるゲル状電解質のイオン供与体層６
の積層物からなり、同ＥＣ素子３の周囲はエポキシ樹脂
よりなる硬質の封止材９ｂによって封止されている。前
記上部及び下部の基板２ａ、２ｂ上の透明電極４，８は
約２００／口の面抵抗を有し、それらの−側部には導電
ペースト１０．１１が塗布され、同導電ペースト１０．
１１に駆動電圧印加用のリード線１２．１３がはんだ付
けされている。The EC element 3 has a thickness of approximately 2000 Å formed on the lower surface of the upper substrate 2a.
an upper transparent electrode 4 made of an ITO (indium tin oxide) film, ■ an oxidized coloring layer 5 made of a polyaniline film with a thickness of about 6000 A formed by electrolytic polymerization on the lower surface of the upper transparent electrode 4, and ■ a lower substrate 2b. Approximately 2000A thick formed on the top surface
A lower transparent electrode 8 made of an ITO film, ■ A reduction coloring layer 7 made of a tungsten oxide film with a thickness of about 6000 A laminated on the upper surface of the lower transparent electrode 8, and ■ A constant interval between both substrates 2a and 2b. Supporting space+
J 9 a, polyethylene oxide and 1M LiC filled between the oxidation coloring layer 5 and the reduction coloring layer 7
It consists of a laminate of an ion donor layer 6 made of a gel electrolyte with a ratio of lO4/propylene carbonate in a ratio of 1:6, and the EC element 3 is surrounded by a hard sealing material 9b made of epoxy resin. ing. The transparent electrodes 4, 8 on the upper and lower substrates 2a, 2b have a sheet resistance of about 200/hole and are coated with a conductive paste 10.11 on their negative sides.
Lead wires 12 and 13 for applying a driving voltage are soldered to 11.
次に、ＥＣ素子３を駆動するための電源１４について説
明すると、第１図に示すように同電源１４はバッテリ、
オルタネータ、ダイナモ等（交流源による場合は変圧ト
ランス、整流回路、平滑回路等も含む）の電力供給源１
５と、ＥＣ素子３への印加電圧を所定電圧から別の所定
電圧まで漸増させ、ざらに同じく漸減させるための電圧
漸増漸減回路１６と、同回路１６における電圧漸増（着
色側）と電圧漸減（潤色側）を切替えるための切替スイ
ッチ１７とを備えている。前記電圧漸増漸減回路１６に
は例えば長周期三角波発娠回路を利用することができる
。Next, the power source 14 for driving the EC element 3 will be explained. As shown in FIG. 1, the power source 14 is a battery,
Power supply source 1 for alternators, dynamos, etc. (including transformers, rectifier circuits, smoothing circuits, etc. when using AC sources)
5, a voltage gradual increase/decrease circuit 16 for gradually increasing the voltage applied to the EC element 3 from a predetermined voltage to another predetermined voltage, and roughly decreasing the voltage in the same way; It is equipped with a changeover switch 17 for changing over the embellished color side. For example, a long-period triangular wave generation circuit can be used as the voltage gradual increase/decrease circuit 16.
本実施例の電源１４は、着色時に印加電圧をＯ■から１
．４ｖまで約２０秒間で直線的に漸増させた後、１．４
Ｖで一定化させる一方、潤色時にＯ■から−２，１ｖま
で約２０秒で直線的に漸減させた後、−２，１Ｖで一定
化させるように調整・設定されており、一旦ＥＣ素子３
が所定の濃度に達した後は電源を開放状態として、ＥＣ
素子３のメモリ性によりその濃度を一定に保持する。The power supply 14 of this embodiment changes the applied voltage from O to 1 during coloring.
．． After increasing linearly to 4v in about 20 seconds, 1.4
While keeping it constant at V, it is adjusted and set so that it gradually decreases linearly from O to -2.1V in about 20 seconds during embellishment, and then becomes constant at -2.1V, and once the EC element 3
After reaching the predetermined concentration, the power supply is opened and the EC
The memory property of the element 3 keeps its concentration constant.
そして、電源１４の出力端子にリード線１２゜１３を介
してＥＣ素子３の上部及び下部の透明電極４．８が接続
されている。The upper and lower transparent electrodes 4.8 of the EC element 3 are connected to the output terminal of the power source 14 via lead wires 12.about.13.
続いて、前記電源１４によるＥＣ素子３の駆動方法につ
いて説明する。Next, a method of driving the EC element 3 using the power source 14 will be explained.
■ 着色時
まず、切替スイッチ１７を着色側に投入して、電源１４
の電圧漸増漸減回路１６による電圧漸増作用を開始させ
、ＥＣ素子３への印加電圧を漸増させる。■ When coloring, first turn on the selector switch 17 to the coloring side and turn on the power supply 14.
The voltage gradual increase/decrease circuit 16 starts the voltage gradual increase action, and the voltage applied to the EC element 3 is gradually increased.
すると、第２図に示すように印加電圧はＯＶから１．４
■まで約２０秒かけて徐々に増加するから、ＥＣ素子３
は各回性負荷であるにも拘らず、同ＥＣ素子３への電流
も第２図に示すように徐々に増加することとなり、ラッ
シュカレントが防止される。Then, as shown in Figure 2, the applied voltage increases from OV to 1.4
EC element 3 increases gradually over about 20 seconds until ■.
Although is a circular load, the current to the EC element 3 also gradually increases as shown in FIG. 2, and rush current is prevented.
従って、前述したようなＥＣ素子３の周辺部への過剰な
電気量の注入が緩和され、第２図に光透通事変化を比較
して示すように、ＥＣ素子３の周辺部はその着色速度が
減少して中央部とともに徐々に着色する。Therefore, the injection of an excessive amount of electricity into the periphery of the EC element 3 as described above is alleviated, and as shown in FIG. The speed decreases and the color gradually increases along with the center.
着色電圧印加時から約２０秒が経過するとＥＣ素子３へ
の印加電圧は１．４■で一定になり、やがてＥＣ素子３
における酸化還元反応が飽和するため、光透過率は周辺
部でも中央部でも約２０％まで低下して着色度がほぼ定
常状態となる。When about 20 seconds have passed since the coloring voltage was applied, the voltage applied to the EC element 3 becomes constant at 1.4■, and soon the EC element 3
Since the redox reaction in the area is saturated, the light transmittance decreases to about 20% in both the peripheral and central areas, and the degree of coloring becomes almost steady.
■ 潤色時
前記切替スイッチ１７投入から約３０秒経過したとき、
同切替スイッチ１７を潤色側に切替えて、電源１４の電
圧漸増漸減回路１６による電圧漸減作用を開始させ、Ｅ
Ｃ素子３への印加電圧を漸減させる。■ When about 30 seconds have passed since the changeover switch 17 was turned on during embellishment,
Switch the changeover switch 17 to the embellishing side to start the voltage gradual decrease action by the voltage gradual increase gradual decrease circuit 16 of the power supply 14,
The voltage applied to the C element 3 is gradually decreased.
すると、第２図に示すように印加電圧はＯＶから−２，
１ｖまで約２０秒かけて徐々に減少するから、着色時と
同様、ラッシュカレントが防止される。Then, as shown in Figure 2, the applied voltage decreases from OV to -2,
Since the voltage gradually decreases to 1 V over about 20 seconds, rush current is prevented as in the case of coloring.
従って、前述したようなＥＣ素子３の周辺部への過剰な
電気量の注入が緩和され、第２図に比較して示すように
、ＥＣ素子３の周辺部はその潤色速度が減少して中央部
とともに徐々に消色する。Therefore, the excessive amount of electricity injected into the peripheral part of the EC element 3 as described above is alleviated, and as shown in comparison with FIG. The color gradually fades over time.
着色電圧印加時から約２０秒が経過するとＥＣ素子３へ
の印加電圧は“−２，１Ｖで一定になり、やがてＥＣ素
子３における酸化還元反応が飽和するため、光透過率は
周辺部でも中央部でも約７８％まで増加して潤色度がほ
ぼ定常状態となる。After approximately 20 seconds have elapsed since the application of the coloring voltage, the voltage applied to the EC element 3 becomes constant at -2.1V, and the redox reaction in the EC element 3 eventually becomes saturated, so that the light transmittance changes even in the periphery as well as in the center. %, it increases to about 78%, and the degree of embellishment becomes almost steady state.
上記の通り、本実施例によればＥＣ素子３周辺部への過
剰な電気量の注入が防止され、これにより同周辺部の過
剰な酸化還元反応による着消色が防止されるので、着色
又は潤色が進んで定常状態になったときの着色度又は潤
色度の均一性が向上する。As described above, according to this embodiment, injection of an excessive amount of electricity into the peripheral area of the EC element 3 is prevented, and thereby coloring or decoloring due to excessive redox reaction in the peripheral area is prevented. The degree of coloring or the uniformity of the degree of embellishment improves when the embellishment progresses and reaches a steady state.
また、着色及び消色が繰り返されても、同周辺部にじみ
や色むらが残ったり、同周辺部が劣化して剥離したりす
ることがなく、ＥＣ素子の野命を延ばすこともできる。Further, even if coloring and decoloring are repeated, bleeding or uneven coloring will not remain in the peripheral area, nor will the peripheral area deteriorate and peel, thereby extending the life of the EC element.
なお、本発明は前記実施例の構成に限定されるものでは
なく、例えば以下のように発明の趣旨から逸脱しない範
囲で任意に変更して具体化することもできる。It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and may be modified and embodied as desired without departing from the spirit of the invention, for example, as described below.
（１） 本発明は特に１００ＣＩｄ以上の面積のＥＣ素
子の駆動方法とじてに具体化するとその効果が著しいが
、勿論それ以下の面積のＥＣ素子に具体化することもで
きる。(1) The present invention is particularly effective when embodied as a method for driving an EC element with an area of 100 CId or more, but it can of course be embodied in an EC element with an area smaller than that.
（２） ＥＣ素子３への印加電圧の漸増又は漸減は時
間に対して曲線的に変化するものでもよい。(2) The voltage applied to the EC element 3 may be gradually increased or decreased in a curved manner with respect to time.
（３） 液体タイプ又は全固体タイプのＥＣ素子に具体
化したり、反射モードのＥＣ素子に具体化したりするこ
ともできる。(3) It can be implemented as a liquid type or all solid type EC element, or as a reflection mode EC element.
発明の効果
以上詳述したように、本発明はＥＣ素子の着色度及び潤
色度の均一性を向上させることができるばかりでなく、
ＥＣ素子のしみ、色むら及び剥離を防止して寿命を延ば
すこともできるという優れた効果を奏する。Effects of the Invention As detailed above, the present invention not only improves the uniformity of the degree of coloring and embellishment of the EC element, but also
It has the excellent effect of preventing stains, color unevenness, and peeling of the EC element and extending its life.
第１．２図は本発明を具体化した実施例を示し、第１図
はＥＣ素子とその駆動方法に使用する電源を示す全体概
略図、第２図は同電源によりＥＣ素子に印加される電圧
、ＥＣ素子に流れる電流、及び、ＥＣ素子の周辺部及び
中央部の光透過率の時間的変化を示すタイムチャート図
である。また、第３図は従来例における電圧、電流及び
光透過率の時間的変化を示すタイムチャート図でおる。
３・・・エレクトロクロミック（ＥＣ’）素子、１４・
・・電源、１６・・・電圧漸増漸減回路。
特許出願人 豊田合成 株式会社株式会社 豊
田中央研究所
代 理 人 弁理士 恩１）博宣２ｍ
口■５ｄ手棒売辛市正豐十
１．事イ１切翫
昭和６２年ネ話γ願第１０５４２０−号２、発明の名称
エレクトロクロミック素子の駆動方法
３、７＋Ｉｔ＋Ｉｉをする者
事件との関係： 特許出願人
住 所 愛美１県西春［Ｊ井郡春日村大字落合字長
畑１番地氏 名 嗣田合成株式会社
（名 称） 代表者根本 正夫
住 所 愛知県愛別１１り長久手町大字長漱字横道
４１番地の１氏名 株式会社ｆｆ、ｌＩＩ中央研究所
（名称） 代表者小松登
４、代理人
住所 〒５００ 岐阜市端詰町２番装置、 ０５８
２ （６５） −１８１０（イ夫ΣＩ乏）ファックス専
用 ０５８２ （６６）−１３３９第２図Figure 1.2 shows an embodiment embodying the present invention, Figure 1 is an overall schematic diagram showing the EC element and the power source used for its driving method, and Figure 2 shows the power applied to the EC element by the same power source. FIG. 3 is a time chart showing temporal changes in voltage, current flowing through the EC element, and light transmittance at the peripheral and central parts of the EC element. Further, FIG. 3 is a time chart showing temporal changes in voltage, current, and light transmittance in the conventional example. 3... Electrochromic (EC') element, 14.
...Power supply, 16...voltage gradual increase gradual decrease circuit. Patent Applicant Toyoda Gosei Co., Ltd. Toyota Central Research Institute Co., Ltd. Agent Patent Attorney On 1) Hironobu 2m Mouth ■ 5d Tebo Selling Shinichi Masafyo 11. Matter 1: 1986 Application No. 105420-2 Name of the invention: Method of driving an electrochromic device 3, 7 + It + Ii Relationship with the case: Patent applicant address Nishiharu, Aimi 1 prefecture [Ji] 1, Nagahata, Ochiai, Kasuga Village, Kasuga Village Name: Tsuguta Gosei Co., Ltd. (Name) Representative: Masao Nemoto Address: 1, 41, Yokomichi, Nagato, Nagakute-machi, Aibetsu, Aichi Prefecture ff, lII Central Research Co., Ltd. Place (name) Representative Noboru Komatsu 4, Agent address 058, No. 2 Hatazume-cho, Gifu City, 500
2 (65) -1810 (Ifu ΣI poor) Fax only 0582 (66) -1339 Figure 2
Claims (1)
漸減させて同エレクトロクロミック素子を着色又は消色
することを特徴とするエレクトロクロミック素子の駆動
方法。1. 1. A method for driving an electrochromic device, which comprises gradually increasing or decreasing a voltage applied to the electrochromic device to color or decolor the electrochromic device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62105420A JPS63271893A (en) | 1987-04-28 | 1987-04-28 | Driving of electrochromic element |
| US07/176,708 US5007718A (en) | 1987-04-02 | 1988-04-01 | Electrochromic elements and methods of manufacturing and driving the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62105420A JPS63271893A (en) | 1987-04-28 | 1987-04-28 | Driving of electrochromic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63271893A true JPS63271893A (en) | 1988-11-09 |
Family
ID=14407107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62105420A Pending JPS63271893A (en) | 1987-04-02 | 1987-04-28 | Driving of electrochromic element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63271893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139899A (en) * | 2005-11-15 | 2007-06-07 | Toshiba Corp | Display device and display element driving method |
-
1987
- 1987-04-28 JP JP62105420A patent/JPS63271893A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139899A (en) * | 2005-11-15 | 2007-06-07 | Toshiba Corp | Display device and display element driving method |
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