JPS63239424A - System for driving electrochromic element - Google Patents
System for driving electrochromic elementInfo
- Publication number
- JPS63239424A JPS63239424A JP7178087A JP7178087A JPS63239424A JP S63239424 A JPS63239424 A JP S63239424A JP 7178087 A JP7178087 A JP 7178087A JP 7178087 A JP7178087 A JP 7178087A JP S63239424 A JPS63239424 A JP S63239424A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- coloring
- transmittance
- switch
- temp
- 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
- 238000004040 coloring Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 abstract description 13
- 230000005856 abnormality Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 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 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910001930 tungsten oxide Inorganic materials 0.000 description 2
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 230000004793 poor memory Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、エレクトロクロミック（ＥＣ）素子における
駆動方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a driving method for an electrochromic (EC) element.
［従来の技術］
エレクトロクロミック素子（以下単にＥＣ素子という、
）は１表示素子、調光窓、防眩鏡等に使用されることが
望まれている。第３図は、このＥＣ素子の駆動の原理を
示す回路図であり、ＥＣ素子の代表的な駆動法のひとつ
である定電圧駆動法を示している。[Prior art] Electrochromic device (hereinafter simply referred to as EC device)
) is desired to be used in display elements, dimming windows, anti-glare mirrors, etc. FIG. 3 is a circuit diagram showing the principle of driving this EC element, and shows a constant voltage driving method, which is one of the typical driving methods for the EC element.
ＥＣ素子は、ガラス、プラスチック等の基板に透明電極
（ＥＣ電極）を形成し、その上に酸化タングステン、醸
化モリブデン等のＥＣ薄膜を配し、別のガラス等の基板
に対向電極を形成した第２の基板とを対向させ、それら
の間に、プロトン、リチウムイオン、ナトリウムイオン
等を含む電解質を封入し、当該透明電極と当該対向電極
との間に電圧を印加して着消色駆動する。The EC element has a transparent electrode (EC electrode) formed on a substrate made of glass, plastic, etc., an EC thin film made of tungsten oxide, molybdenum fermentation, etc. placed on top of the transparent electrode, and a counter electrode formed on another substrate made of glass, etc. A second substrate is placed facing each other, an electrolyte containing protons, lithium ions, sodium ions, etc. is sealed between them, and a voltage is applied between the transparent electrode and the counter electrode to drive coloring and decoloring. .
第３図において３７は対向電極であり３８はＥＣ電極で
ある。酸化タングステン、酸化モリブデン等の還元着色
型のＥＣ薄膜を使用した場合には、このＥＣ素子を着色
させる場合には、電池のプラス側のスイッチ３１を３２
の側に倒し、電池のプラスを対向電極３７に接続すると
ともに、電池のマイナス側のスイッチ３４を３５の側に
倒し、電池のマイナスをＥＣ電極３８に接続すればよい
、所望の濃さに着色した時点で、この２つのスイッチの
接点をオープンにすれば、ＥＣ素子はその状態を保ち、
表示が継続される。逆に、このＥＣ素子を消色させる場
合には、電池のプラス側のスイッチ３１を３２の側に倒
し、電池のプラスをＥＣ電極３８に接続するとともに、
電池のマイナス側スイッチ３４を３８の側に倒し、電池
のマイナスを対向電極３７に接続すればよい。In FIG. 3, 37 is a counter electrode and 38 is an EC electrode. When using a reduction colored EC thin film such as tungsten oxide or molybdenum oxide, if you want to color this EC element, turn the switch 31 on the positive side of the battery to 32.
, and connect the positive terminal of the battery to the counter electrode 37. At the same time, flip the switch 34 on the negative side of the battery to the 35 side, and connect the negative terminal of the battery to the EC electrode 38. Color the battery to the desired density. At that point, if you open the contacts of these two switches, the EC element will maintain that state,
Display continues. Conversely, when decolorizing this EC element, turn the switch 31 on the positive side of the battery to the 32 side, connect the positive side of the battery to the EC electrode 38, and
The negative side switch 34 of the battery may be turned to the 38 side, and the negative terminal of the battery may be connected to the counter electrode 37.
［発明の解決しようとする問題点］
このＥＣ素子は、電荷の蓄積により着色するため、電荷
の蓄積量に応じて透過率（以下単にＴＶという、）が異
なってくる。このため、一定の電流の一定時間の駆動、
又は一定電圧の一定時間の駆動により最初に所望の電荷
を注入しても、当該ＥＣ素子の内部放電によって、当初
のＴＶを維持することができない。[Problems to be Solved by the Invention] Since this EC element is colored by the accumulation of charge, the transmittance (hereinafter simply referred to as TV) differs depending on the amount of charge accumulation. For this reason, driving a constant current for a constant time,
Alternatively, even if a desired charge is first injected by driving at a constant voltage for a certain period of time, the original TV cannot be maintained due to internal discharge of the EC element.
このような問題点を解消するために従来では電解質及び
着色ＥＣ層の相互作用により、着色のメモリ性が決まる
ので、ＥＣ層の物性を制御するか（例えば、−０３膜の
密度を上げる。第５図参照）電解質中での酸化体拡散を
抑制しなければならなかった（例えば、ポリマー 濃度
を上げる。又はセルギャップを広げる。第６図参照）。Conventionally, in order to solve these problems, since the memory property of coloring is determined by the interaction between the electrolyte and the colored EC layer, it is necessary to control the physical properties of the EC layer (for example, increase the density of the -03 film. Oxidant diffusion in the electrolyte had to be suppressed (eg, by increasing the polymer concentration or widening the cell gap; see Figure 6).
ここで第５図と第６図の説明をすると第５図は、ＥＣ素
子を２０％の透過率で着色後の透過率とＷＯ３膜の密度
の特性を示し、 （ｌｌ１０３膜の密度がメモリ性に関
係していることを示している。）第６図は、ＥＣ素子の
着色後１時間後のメモリ性の特性（８１は、ポリマー濃
度５％セルギャップ５０濤■、６２は、ポリマー濃度１
０％セルギャップ５０ＩＬｍ 、 ６３は、ポリマー濠
度５％セルギャップ２０ＯＩＬ層、の特性を示し、６１
．６２．６３ともｌ１１０３膜の密度は５．５ｇ／ｅ厘
３である。）を示す。To explain Figures 5 and 6 here, Figure 5 shows the characteristics of the transmittance and the density of the WO3 film after coloring the EC element at a transmittance of 20%. ) Figure 6 shows the memory characteristics of the EC element one hour after coloring (81 indicates a polymer concentration of 5% and a cell gap of 50mm, 62 indicates a polymer concentration of 1%).
0% cell gap 50ILm, 63 shows the characteristics of a polymer moat 5% cell gap 20OIL layer, 61
．． The density of both 62.63 and 1103 films is 5.5 g/e. ) is shown.
前述したように、メモリ性を改善すると消色特性が著し
るしく悪くなり、消色電圧が同じであった場合は、消色
時間は、約２倍〜数倍も長くなってしまう、又、消色時
間を短かくしようとして、消色電圧を上げると（通常１
．０ｖ以上）対向電極に損傷を生じたりする。As mentioned above, if the memory property is improved, the decoloring property becomes significantly worse, and if the decoloring voltage is the same, the decoloring time becomes about twice to several times longer. If you try to shorten the erasing time and increase the erasing voltage (usually 1
．． 0V or more) may cause damage to the counter electrode.
［問題点を解決するための手段］
本発明は、前述の問題点を解決すべくなされたものであ
り、エレクトロクロック素子において、着色後のＥＣ電
極と対向電極間の電圧にほぼ等しい直流電圧を印加する
ことを特徴とするエレクトロクロミック素子の駆動方式
を提供するものである。[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and in an electroclock element, a DC voltage approximately equal to the voltage between the EC electrode and the counter electrode after coloring is applied. The present invention provides a method for driving an electrochromic element characterized by applying a voltage.
［作用］
本発明において、連続通電によって紫外線昭射時の寿命
が伸びることの作用について述べると、着色反応は、対
極： ＸＡ＋ ＸＢ＋ Ｘｅ−、ＷＯ３１： ＸＬｉ争
＋Ｗ０３＋Ｘｅ−＋ＬｉｘＷＯｘ （ただし、 Ｘ＝実
数、Ａ＝還元体、Ｂ＝酸化体）のように行われ、紫外線
照射を行うと酸化体Ａが減少するので消色反応が十分に
行われなくなり、劣化の原因となるが、連続通電すると
紫外線照射により酸化体Ａが減少することが少ない、こ
のように、本発明の連続通電による酸化体Ａの減少の防
止によってＥＣ素子の長寿命化の如き効果を生ずるもの
と考えられる。[Function] In the present invention, to describe the effect of extending the lifespan during ultraviolet irradiation by continuous energization, the coloring reaction is as follows: Opposite electrode: XA+ XB+ Xe-, WO31: A = reduced form, B = oxidized form), and when irradiated with ultraviolet rays, oxidized form A decreases, so the decoloring reaction is not carried out sufficiently and causes deterioration, but continuous energization causes irradiation with ultraviolet rays. Therefore, it is thought that the prevention of the decrease in oxidant A due to continuous energization according to the present invention produces effects such as prolonging the life of the EC element.
［実施例］
３０ｃｍ角の透明電極を設けた硝子基板上に一〇３を蒸
着したＥＣ側基板と、透明電極を設けた硝子基板からな
る対向電極基板とを相対向させ周辺をシールして内部に
スルホランと３−メチルスルホランの４＝１（体積比）
の混合溶媒にＬｉＩを０．７５Ｍ／ｉ、ポリビニルピロ
リドン５重量％を配合した電解質を注入して封止してＥ
Ｃ素子を形成した。第１図、第２図にこの駆動回路のブ
ロック図を示す。[Example] An EC side substrate in which 103 was deposited on a glass substrate with a 30 cm square transparent electrode and a counter electrode substrate made of a glass substrate with a transparent electrode were placed facing each other and the periphery was sealed to seal the inside. 4=1 (volume ratio) of sulfolane and 3-methylsulfolane
An electrolyte containing 0.75 M/i of LiI and 5% by weight of polyvinylpyrrolidone was injected into the mixed solvent of E and sealed.
A C element was formed. FIGS. 1 and 2 show block diagrams of this drive circuit.
第１図、第２図において、 １，２１は上述のＥＣ素子
であり、 ３，２３は、当該ＥＣ素子を定電流駆動可能
な着ｅ消色駆動回路であり、５．２５は、ＥＣ素子１の
温度を測定するための温度センサーであり、２７は、Ｅ
Ｃ素子２１の電極の電圧を測定するてめの起電力測定器
である。In FIGS. 1 and 2, 1 and 21 are the above-mentioned EC elements, 3 and 23 are coloring and decoloring drive circuits that can drive the EC elements with constant current, and 5.25 is the EC element. 27 is a temperature sensor for measuring the temperature of E
This is the first electromotive force measuring device for measuring the voltage of the electrode of the C element 21.
６．２６は、第４図に示した、透過率平衝値ＴＶ（当該
ＥＣ素子は、着色後約１分間で、電極の電圧が安定する
。）と着色時のＥＣ素子１．２１の電極の電圧の特性を
記憶させた計算回路とその計算回路に基づきＥＣ素子１
，２１に電圧を供給するバックアップ電源である。6.26 is the transmittance average value TV (the voltage of the electrode becomes stable in about 1 minute after coloring of the EC element) and the electrode of EC element 1.21 during coloring, shown in Figure 4. EC element 1 based on the calculation circuit that memorizes the voltage characteristics of
, 21.
尚、第４図は、ＥＣ素子に電荷注入（着色）後１分後の
ＴＶとＥＣ電極と対向電極間の電圧（以下単にｅ■ｆと
いう、）の周囲温度をパラメータとした場合の特性図で
ある。Fig. 4 is a characteristic diagram of the voltage between the TV, the EC electrode, and the counter electrode (hereinafter simply referred to as e f) one minute after charge injection (coloring) into the EC element, with the ambient temperature as a parameter. It is.
実施例１
第１図において、ＴＶが２０％になるようにスイッチ２
をオンして、着−消色駆動回路３で、１５０ｍＡの定電
流を１０Ｑｓｅｃ間流す、（このＥＣ素子は、この条件
でＴ Ｖ ＝ ２０％となる。）そして１分間後、スイ
ッチ２をオフし、スイッチ４をオンして、計算回路・バ
ックアップ電源Ｂは、温度センサー５から温度データー
と計算回路令バックアップ電源８の中に記憶しである一
２０℃〜＋１２０℃との間の温度をパラメーターとした
時の、Ｔ Ｖ −ｅｍｆ特性（第７図）よりＴ Ｖ ＝
２０％においてのＥＣ素子の温度に対応したａｓｆに
等しい電圧を選択し （常温なら、第７図より約０．５
４Ｖ）、出力すべき電圧をＥＣ素子に与える。Example 1 In FIG. 1, switch 2 is set so that the TV is at 20%.
is turned on, and a constant current of 150 mA is caused to flow for 10 Qsec by the coloring/decoloring drive circuit 3. (This EC element becomes T V = 20% under this condition.) Then, after 1 minute, the switch 2 is turned off. Then, by turning on the switch 4, the calculation circuit/backup power supply B receives the temperature data from the temperature sensor 5 and the temperature between -20°C and +120°C stored in the calculation circuitry backup power supply 8 as a parameter. From the T V -emf characteristics (Fig. 7) when T V =
Select a voltage equal to asf corresponding to the temperature of the EC element at 20% (at room temperature, approximately 0.5 from Figure 7).
4V), the voltage to be output is given to the EC element.
温度の検出は、周期的に行って周期的に計算回路・・バ
ックアップ電源８の出力電圧を温度に合わせて可変する
。当該周期は、ＥＣ素子の設置されている環境によって
も異なるが、数分〜数十分程度が適当である。Temperature detection is performed periodically, and the output voltage of the calculation circuit/backup power supply 8 is periodically varied in accordance with the temperature. Although the period varies depending on the environment in which the EC element is installed, it is appropriate to range from several minutes to several tens of minutes.
尚出力電圧は、第４図から理解されるように数十露マの
誤差が生じても、ＴＶは数％しかずれない。As can be seen from FIG. 4, even if an error of several tens of exposures occurs in the output voltage, the TV will deviate by only a few percent.
以上のように行うことにより、着色後２４時間経過後、
その間に、周囲温度が一２０℃〜＋１２０℃の間で変化
しても当初に設定された２０％の透過率は、約±３％の
範囲の変化に収まり、且つ当該ＥＣ素子１の着ψ消色状
態に何ら異常は認められなかった。By doing as above, 24 hours after coloring,
During that time, even if the ambient temperature changes between -120°C and +120°C, the initially set transmittance of 20% will remain within a range of approximately ±3%, and No abnormality was observed in the decolorized state.
実施例２
第２図において、上述と同様にスイッチ２２をオンして
、着・消色駆動回路２３で、 １５０ｍＡの定電流を１
００ｓｅｃ間流す、１分間後、スイッチ２２をオフし、
スイッチ２４をオンして、最初に起電力測定器２５によ
り測定したｅ■ｆと同じ値の電圧を計算回路・バックア
ップ電源２Ｂは、記憶するとともにＥＣ素子２１に与え
る。この際温度も記憶する （以下、この際記憶された
温度、ｅｍｆをそれぞれＴｏ、 Ｅｏという、）、とこ
ろで、第７図は本実例に使用した製造直後のＥＣ素子に
ついて、Ｔ Ｖ ＝ ２０％の時の、ＥＣ素子の温度と
ｅ＋ｓｆの特性図であるがＥＣ素子は一般に、経時変化
によって第７図の特性が変化することがある。Embodiment 2 In FIG. 2, the switch 22 is turned on in the same manner as described above, and the coloring/decoloring drive circuit 23 applies a constant current of 150 mA to 1.
After 1 minute, turn off the switch 22,
When the switch 24 is turned on, the calculation circuit/backup power supply 2B stores a voltage having the same value as e■f initially measured by the electromotive force measuring device 25 and supplies it to the EC element 21. At this time, the temperature is also stored (hereinafter, the temperature and emf stored at this time will be referred to as To and Eo, respectively). By the way, FIG. 7 is a characteristic diagram of the temperature and e+sf of the EC element at the time of the test. In general, the characteristics of the EC element shown in FIG. 7 may change due to changes over time.
その変化の度合はｅ■ｆ軸方向に負あるいは正方向に約
２００〜３００膳Ｖ平行にずれることがある。The degree of the change may be approximately 200 to 300 degrees V parallel to the negative or positive direction of the e and f axes.
従って、経時変化に対応した制御が望ましい。Therefore, control that responds to changes over time is desirable.
であるから第７図において、計算回路・バックアップ電
・源２ＢはＴｏ、 Ｅｏの点を通り、第７図に示した基
準となる直線と同じ傾きを有する直線を演算することに
よって決定し、以後この決定された直線（以下、単にＦ
（ｃ）という、）によりＥＣ素子２１の制御を行う、制
御は実施例１と同様に数分〜数十分毎に温度センサー２
５によりＥＣ素子２１の温度を測定し、Ｆ（ｃ）上のそ
の温度に対応したｅ層ｆの値をＥＣ素子２１に印加する
。Therefore, in Fig. 7, the calculation circuit/backup power supply/source 2B is determined by calculating a straight line that passes through the points To and Eo and has the same slope as the reference straight line shown in Fig. 7. This determined straight line (hereinafter simply F
The EC element 21 is controlled by (c)), and the control is carried out by the temperature sensor 21 every few minutes to several tens of minutes, as in the first embodiment.
5, the temperature of the EC element 21 is measured, and the value of the e layer f corresponding to the temperature on F(c) is applied to the EC element 21.
具体的にＥＣ素子２１に印加する電圧は、常温で約０．
５±０．２〜０．３ｖ程度である。Specifically, the voltage applied to the EC element 21 is about 0.0 at room temperature.
It is about 5±0.2 to 0.3v.
以上のように行うことにより、製造直後のもの、製造後
２００時間駆動したもの製造後１０００時間駆動したも
のの３つのＥＣ素子を使い、温度範囲一２０℃〜＋１２
０℃の間で温度を可変したが、２４時間経過後３つのＥ
Ｃ素子のいずれの素子も当初に設定された２０％の透過
率は、約±３％の範囲の変化に収まり、且つ当該ＥＣ調
光対の着・消色状態に何ら異常は認められなかった。実
施例２は、実施例１と比較すると、ＥＣ素子自体の経時
変化に対しても、一定のＴＶを維持できる。By doing the above, three EC elements, one immediately after manufacture, one operated for 200 hours after manufacture, and one operated for 1000 hours after manufacture, were used, and the temperature range was -20℃ to +12℃.
The temperature was varied between 0℃, but after 24 hours, three E
The originally set transmittance of 20% for all C elements was within a range of approximately ±3%, and no abnormality was observed in the colored or bleached state of the EC dimming pair. . In comparison with Example 1, Example 2 can maintain a constant TV even when the EC element itself changes over time.
［発明の効果］
本発明は、メモリー性の劣るＥＣ素子でも、長時間所望
の透過率を正確に保持できるという優れた効果を有し、
特に多数のＥＣ素子の駆動の際、１つの計算回路・バッ
クアップ電源と各ＥＣ素子の間に、当該各ＥＣ素子の着
色性能のバラツキに合わせた抵抗値を有する抵抗を直列
に接続し、基準のＥＣ素子に印加する電圧とほぼ同じ電
圧を印加することにより同じ透過率にできるという効果
も認められる（この場合、当該ＥＣ調光体は数十〜数ｍ
Ａの電流が流れこの電流値と当該抵抗による電圧効果に
よって印加電圧を調整することによって透過率を調整す
る。）、更にＥＣ素子は太陽光等の紫外線照射により劣
化するが、本発明の駆動方式の連続通電により通電しな
い場合より約４〜５倍寿命が伸びることがわかり、ＥＣ
素子の品質維持に絶大なる効果があることがわかった。[Effects of the Invention] The present invention has the excellent effect that even an EC element with poor memory performance can accurately maintain a desired transmittance for a long time.
In particular, when driving a large number of EC elements, a resistor having a resistance value that matches the variation in coloring performance of each EC element is connected in series between one calculation circuit/backup power supply and each EC element, and It is also observed that the same transmittance can be achieved by applying almost the same voltage as that applied to the EC element (in this case, the EC light control body is several tens to several meters
A current flows and the transmittance is adjusted by adjusting the applied voltage based on this current value and the voltage effect due to the resistor. ), furthermore, although EC elements deteriorate due to ultraviolet irradiation from sunlight, etc., it was found that continuous energization using the drive method of the present invention extends the lifespan by about 4 to 5 times than when no energization occurs.
It was found that this method has a great effect on maintaining the quality of the device.
第１図、第２図・・・本発明の実施例のブロック図。
第３図・・・ＥＣ素子の駆動の回路図。
第４図・・・実施例に使用したＥＣ素子のＴＶとａｍｆ
’の特性図。
第５図・・・ＥＣ素子のＴＶと一０３膜の密度の特性図
。
第６図・・・ＥＣ素子の１時間後のメモリ性の特性図。
第７図・・・ＥＣ素子の透過率２０％時の温度とａｍｆ
の特性図。
ＥＣ素子・・・１，２１
着・消色駆動回路・・・３，２３
温度センサー・・・５
計算回路Φバックアップ電源・・・６，２６１３ω
賀牟口
＝ （已／アｙｈ（（ｖンFIGS. 1 and 2 are block diagrams of embodiments of the present invention. Fig. 3: Circuit diagram for driving the EC element. Figure 4: TV and amf of the EC element used in the example
Characteristic diagram of '. Fig. 5: Characteristic diagram of the TV of the EC element and the density of the 103 film. Fig. 6: Characteristic diagram of memory properties of the EC element after 1 hour. Figure 7...Temperature and amf when the transmittance of the EC element is 20%
Characteristic diagram. EC element...1, 21 Coloring/decoloring drive circuit...3, 23 Temperature sensor...5 Calculation circuit Φ backup power supply...6,2613Ω
Kamuguchi= (已/ayh((vn
Claims (1)
電極と対向電極間の電圧にほぼ等しい直流電圧を印加す
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
式。(1) In electro clock elements, EC after coloring
A driving method for an electrochromic device characterized by applying a DC voltage approximately equal to the voltage between an electrode and a counter electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7178087A JPS63239424A (en) | 1987-03-27 | 1987-03-27 | System for driving electrochromic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7178087A JPS63239424A (en) | 1987-03-27 | 1987-03-27 | System for driving electrochromic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63239424A true JPS63239424A (en) | 1988-10-05 |
Family
ID=13470425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7178087A Pending JPS63239424A (en) | 1987-03-27 | 1987-03-27 | System for driving electrochromic element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63239424A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02216131A (en) * | 1989-02-17 | 1990-08-29 | Nikon Corp | Display controller for electrochromic element |
| JP2016218358A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
| JP2016218357A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
| JP2016218437A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
-
1987
- 1987-03-27 JP JP7178087A patent/JPS63239424A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02216131A (en) * | 1989-02-17 | 1990-08-29 | Nikon Corp | Display controller for electrochromic element |
| JP2016218358A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
| JP2016218357A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
| JP2016218437A (en) * | 2015-05-25 | 2016-12-22 | 株式会社リコー | Driving method of electrochromic device and electrochromic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5973818A (en) | Method and apparatus for controlling an electrochromic device | |
| EP3072011B1 (en) | Method and apparatus for control of electrochromic devices | |
| US4302751A (en) | Driver circuit for electrochromic displays | |
| WO2002017008A2 (en) | Method and apparatus for controlling an electrochromic device | |
| US4205903A (en) | Writing/erasing technique for an electrochromic display cell | |
| JPS5922949B2 (en) | Display device drive method | |
| EP1812925A2 (en) | Display driver | |
| WO2007095139A1 (en) | Method and system for lowering the drive potential of an electrochromic device | |
| EP0007110B1 (en) | Electrooptical display | |
| JPH05147983A (en) | Light transmittance variable glass | |
| JPS63239424A (en) | System for driving electrochromic element | |
| RU2743655C1 (en) | Method for stabilized control of high-speed optical switching of an electrochromic module and a device for using this method | |
| US6650465B2 (en) | Light-switching device | |
| JPS592907B2 (en) | Hiyojisouchinokudouhouhou | |
| Knowles | Optical regeneration of aged WO3 electrochromic cells | |
| JP2002229072A (en) | Method and unit for controlling electrochromic light control element | |
| JPS63192024A (en) | Method and circuit for driving ec glare-proof mirror | |
| Hamada et al. | Electrochromic displays: status and future prospects | |
| US4209770A (en) | Driving technique for electrochromic displays of the segmented type driving uncommon segment electrodes only | |
| JPH0359545A (en) | Electrochromic element | |
| Bruinink | Electrochromic display devices | |
| JPS638888Y2 (en) | ||
| JPS625219A (en) | Electro chromic displaying device | |
| Shay et al. | Performance of a seven‐segment iridium oxide electrochromic display | |
| JPS6131851B2 (en) |