JPS63153525A - Electrochromic display element - Google Patents
Electrochromic display elementInfo
- Publication number
- JPS63153525A JPS63153525A JP30029186A JP30029186A JPS63153525A JP S63153525 A JPS63153525 A JP S63153525A JP 30029186 A JP30029186 A JP 30029186A JP 30029186 A JP30029186 A JP 30029186A JP S63153525 A JPS63153525 A JP S63153525A
- Authority
- JP
- Japan
- Prior art keywords
- display element
- particles
- liquid electrolyte
- silicon carbide
- electrode
- 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
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000011244 liquid electrolyte Substances 0.000 claims abstract description 25
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 22
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 20
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 20
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 abstract description 6
- 230000004043 responsiveness Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 description 15
- 238000004040 coloring Methods 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- KMHSUNDEGHRBNV-UHFFFAOYSA-N 2,4-dichloropyrimidine-5-carbonitrile Chemical compound ClC1=NC=C(C#N)C(Cl)=N1 KMHSUNDEGHRBNV-UHFFFAOYSA-N 0.000 description 2
- 206010063836 Atrioventricular septal defect Diseases 0.000 description 2
- 238000001211 electron capture detection Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は電気化学的な着消色現象を利用するエレクト
ロクロミック表示素子の構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to the structure of an electrochromic display element that utilizes electrochemical coloring/decoloring phenomena.
エレクトロクロミック表示素子は所謂ＥＣＤ（エレクト
ロクロミック・ディスプレイ＋ Ｅｌｅｃｔｒｏ−ｃｈ
ｒｏｍｉｃ Ｄｉｓｐｌａｙ）において使用されるもの
で、物質に電圧を印加することによ又電極面あるいは電
極面近傍でおこる酸化還元反応によって、可逆的に色や
光透過度が変化する所謂エレクトロクロミズム現象を応
用する表示素子である。The electrochromic display element is the so-called ECD (electrochromic display + Electro-ch
(romic Display), and applies the so-called electrochromism phenomenon in which color and light transmittance change reversibly by applying a voltage to a substance or by an oxidation-reduction reaction that occurs at or near the electrode surface. It is a display element that displays
ディスプレイを大別すると発光ダイオード等の自発発光
型と、液晶等の非発光型に分かれるがエレクトロクロミ
ック表示素子は非発光型に属する。Displays can be roughly divided into self-luminous types such as light-emitting diodes, and non-luminous types such as liquid crystals, and electrochromic display elements belong to the non-luminous type.
ＥＣＤはどこからも良く見え、表示品位は良いが、消費
電力がＬＣＤ （液晶表示、Ｌｉｑｕｉｄ Ｃｒｙｓ
ｔａｌＤｉｓｐｌａｙ）に比して大きい、寿命がオン−
オフサイクル数に依存する。マルチプレックス駆動（時
分割駆動）が困難といった難点もあるので、交通関係の
行先案内板、料金表示、病院の窓口案内、各種計測器類
等の用途が考えられている。ECDs are visible from any angle and have good display quality, but they consume less power than LCDs (Liquid Crystal Displays, Liquid Crys
talDisplay), and has a long lifespan.
Depends on number of off cycles. Since multiplex drive (time division drive) is difficult, applications such as transportation-related destination information boards, fare displays, hospital counter information, and various measuring instruments are being considered.
エレクトロクロミズム現象を示す材料には−０３のよう
な金属酸化物があり、着消色の機構も解明されている。Materials that exhibit electrochromism include metal oxides such as -03, and the mechanism of coloring and fading has also been elucidated.
一方有機物のエレクトロクロミズム材料も広く研究され
ており、例えばシフタロジアニンの希土類化合物など多
色化が可能２画像が鮮明等の特長を有している。On the other hand, organic electrochromic materials have also been widely studied, such as rare earth compounds such as sifthalodianine, which have features such as the ability to produce multiple colors and clear images.
エレクトロクロミック表示素子（以下ＥＣ表示素子と略
記する）はエレクトロクロミズムの動作を行なう表示電
極と対向電極との間に電圧を印加し、その印加電圧の制
御によって着消色を繰返すものである。先に本件出願人
より出願された特願昭６１−０１０６２２絆は、第３図
で明示するように、ガラス基板１上に形成されたＩ Ｔ
Ｏ（Ｉｎｄｉｕｍ ＴｉｎｏｘＩｄａ）透明を極３の
上に鉄フタロシアニンのようなエレクトロクロミック発
色層４を蒸着させた表示電極９をガラス基板２上に形成
された白金のような対向電極５と対向配置し、両電極間
に飽和のＭＣＩ水溶液からなる液体電解質６Ｂを配して
構成するＥＣ表示素子が示されている。電解質としては
固体電解質もあるが、液体電解質６Ｂを用いたＥＣ表示
素子は応答性に優れる特長がある。An electrochromic display element (hereinafter abbreviated as an EC display element) applies a voltage between a display electrode that performs an electrochromic operation and a counter electrode, and repeats coloring and decoloring by controlling the applied voltage. Japanese Patent Application No. 61-010622 previously filed by the present applicant is an IT bond formed on a glass substrate 1, as clearly shown in FIG.
A display electrode 9 in which an electrochromic coloring layer 4 such as iron phthalocyanine is deposited on a transparent electrode 3 made of O (Indium Tinox Ida) is placed opposite to a counter electrode 5 such as platinum formed on a glass substrate 2. An EC display element is shown in which a liquid electrolyte 6B made of a saturated MCI aqueous solution is arranged between both electrodes. Although solid electrolytes are available as electrolytes, EC display elements using liquid electrolyte 6B have the advantage of excellent responsiveness.
しかしながらこのようなＥＣ表示素子においては、液体
電解質を用いているために、液体電解質がＥＣ表示素子
から液漏れを起こし、その結果ＥＣ表示素子の寿命が短
かくなるという問題点があった。However, since such an EC display element uses a liquid electrolyte, there is a problem in that the liquid electrolyte leaks from the EC display element, resulting in a shortened lifespan of the EC display element.
この発明の目的は、液体電解質の液漏れを防止すること
により、応答性に優れ且つ信幀性の高いＥＣ表示素子を
提供することにある。An object of the present invention is to provide an EC display element with excellent responsiveness and high reliability by preventing leakage of liquid electrolyte.
上記目的は、この発明によれば、表示電極と対向電極と
の間に液体電解質を有するエレクトロクロミック表示素
子において、シリコンカーバイドの粒子をポリテトラフ
ロロエチレンの粒子で結着してなる多孔質体を前記表示
電極と対向電極の間に配置し、この多孔質体に液体電解
質６Ｂを含浸させることにより達成される。According to the present invention, in an electrochromic display element having a liquid electrolyte between a display electrode and a counter electrode, a porous body formed by bonding silicon carbide particles with polytetrafluoroethylene particles is provided. This is achieved by placing the porous body between the display electrode and the counter electrode and impregnating the liquid electrolyte 6B.
シリコンカーバイドの粒子１０のポリテトラフロロエチ
レンの粒子１１による結着体は多孔質であるから、これ
に液体電解質が吸収保持されると、多孔質部分を介して
物質移動（イオンの移動）が起こり、イオンは電荷を有
するので物質移動は即、電流に相当する。また、液体電
解質が多孔質体に保持される結果、液体電解質が表示素
子の外部に漏出することがなくなる。Since the bond formed by the polytetrafluoroethylene particles 11 of the silicon carbide particles 10 is porous, when the liquid electrolyte is absorbed and retained by this, mass transfer (ion movement) occurs through the porous portion. Since ions have a charge, mass transfer corresponds to an electric current. Furthermore, since the liquid electrolyte is held in the porous body, the liquid electrolyte is prevented from leaking to the outside of the display element.
次にこの発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第１図はこの発明の実施例に係るＥＣ表示素子を示す模
式断面図である。第１図で１，２はガラス基板である。FIG. 1 is a schematic cross-sectional view showing an EC display element according to an embodiment of the present invention. In FIG. 1, 1 and 2 are glass substrates.
３はＩ Ｔ Ｏ（Ｉｎｄｉｕｓ＋ Ｔｉｎ ０ｘｉｄｅ
）透明電極である。４は鉄フタロシアニン（ＦｅＰｃ）
からなるエレクトロクロミンク発色層である。ＩＴＯ透
明電極３とエレクトロクロミック発色層４は表示電極９
を構成する。５は白金からなる対向電極である。６＾は
電解質マトリクスでシリコンカーバイドの粒子１０をポ
リテトラフロロエチレンの粒子１１で結着した多孔質の
結着体（マトリクス６Ｃ）に飽和ＸＣＩの水溶液からな
る液体電解質６Ｂを含浸させて製作する。７はスペーサ
で表示電極９と対向電極５の対向する間隔を決める。８
は表示電極９および対向電極５とスペーサ７との間を密
封するシール部である。3 is ITO(Indius+Tin Oxide
) It is a transparent electrode. 4 is iron phthalocyanine (FePc)
It is an electrochromic coloring layer consisting of. The ITO transparent electrode 3 and the electrochromic color forming layer 4 are the display electrode 9
Configure. 5 is a counter electrode made of platinum. 6^ is an electrolyte matrix, and is manufactured by impregnating a porous bonded body (matrix 6C) in which silicon carbide particles 10 are bound with polytetrafluoroethylene particles 11 with a liquid electrolyte 6B made of an aqueous solution of saturated XCI. A spacer 7 determines the distance between the display electrode 9 and the counter electrode 5 so that they face each other. 8
is a seal portion that seals between the display electrode 9, the counter electrode 5, and the spacer 7.
このようなＥＣ表示素子は次のようにして作製される。Such an EC display element is manufactured as follows.
ガラス基板１の上にスパッタでＩＴＯ透明電極３を形成
する。ＦｅＰｃを蒸着法で約１０００人厚にＩＴＯ透明
電極３上に蒸着させ、エレクトロクロミック発色層４を
形成する。対向電極５はガラス基板２の上に白金をスパ
ッタして形成する。粒径０６１ないし０．３μのシリコ
ンカーバイドとポリテトラフロロエチレンの粒子の所定
量を１００■ｌのイソプロピルアルコールと混合し、超
音波分散を施したのち、通常のロール法によりスペーサ
間隔０．５ｆｌにてシートを作製する。得られたシート
は乾燥および焼成の工程によりシート状マトリックス６
Ｃを形成する。このシート状マトリックス６Ｃを表示電
極９と対向電極５で挟持し、スペーサ７で周囲をかこん
だあとＫＣＩの飽和水溶液の液体電解質６Ｂをマトリッ
クス６Ｃに含浸させて、電解質マトリクス６Ａを形成さ
せる。最後にシール部８で電極５．９とスペーサ７との
間のシールを行う。An ITO transparent electrode 3 is formed on a glass substrate 1 by sputtering. FePc is deposited to a thickness of about 1000 layers on the ITO transparent electrode 3 by a vapor deposition method to form an electrochromic coloring layer 4. The counter electrode 5 is formed on the glass substrate 2 by sputtering platinum. A predetermined amount of silicon carbide and polytetrafluoroethylene particles with a particle size of 061 to 0.3μ are mixed with 100μl of isopropyl alcohol, subjected to ultrasonic dispersion, and then dispersed with a spacer spacing of 0.5fl using a conventional roll method. to produce a sheet. The obtained sheet is dried and fired to form a sheet-like matrix 6.
form C. This sheet-like matrix 6C is sandwiched between a display electrode 9 and a counter electrode 5, surrounded by a spacer 7, and then a liquid electrolyte 6B of a saturated aqueous solution of KCI is impregnated into the matrix 6C to form an electrolyte matrix 6A. Finally, the seal portion 8 seals between the electrode 5.9 and the spacer 7.
このようにして製作されたＥＣ表示素子は表示電極９と
対向電極５の間に表示電極９を負電位にして−２，５ｖ
とＯｖを印加する。−２，５Ｖにすると表示電極９のＦ
ｅＰｃエレクトロクロミック層４は赤色になる。Ｏｖに
すると、青色になる。このときの色相変化は次の反応（
１）によるものと推定される。The EC display element manufactured in this way has a negative potential of -2.5 V between the display electrode 9 and the counter electrode 5.
and Ov are applied. -2.5V, F of display electrode 9
The ePc electrochromic layer 4 becomes red. When set to Ov, it becomes blue. The hue change at this time is the following reaction (
It is presumed that this is due to 1).
（青色”） （ＯＶ） （赤色）マトリ
ックス６Ｃの製作におけるシリコンカーバイドとポリテ
トラフロロエチレンの粒子径および混合比が膜厚、成型
性などにおよぼす影響をまとめて第１表ないし第３表に
示す。比較のために上記粒子径以外についても併記する
。表中の膜厚の平均と偏差は焼成後シートをｌＱｃｍＸ
ＩＱｃｍに切り出してそれぞれの辺の１ｃＩｌ内側の点
と中央の点の計９点の膜厚を測定し算出したものである
。第１表はシリコンカーバイド （Ｓａｃ）とポリテト
ラフロロエチレンをそれぞれＬｏｇ宛混合し、ＰＴＦＨ
の粒子径は０．３μに固定して、シリコンカーバイドの
粒子径を変化させた場合の結果である。(Blue”) (OV) (Red) Tables 1 to 3 summarize the effects of the particle size and mixing ratio of silicon carbide and polytetrafluoroethylene on film thickness, moldability, etc. in the production of Matrix 6C. .For comparison, particle sizes other than those listed above are also listed.The average and deviation of the film thickness in the table is calculated using the sheet after firing as lQcmX.
The film thickness was calculated by cutting out the film into IQ cm and measuring the film thickness at a total of 9 points, including a point 1 cIl inside each side and a point in the center. Table 1 shows the mixture of silicon carbide (Sac) and polytetrafluoroethylene to each log, and PTFH.
The results are obtained when the particle size of silicon carbide was fixed at 0.3μ and the particle size of silicon carbide was varied.
第１表
第２表はＳｉＣとＰＴ′ＦＥの粒子径をそれぞれ０．３
ｔｎｎ。Table 1 and Table 2 show the particle diameters of SiC and PT'FE, each 0.3
tnn.
ＳｉＣの量をＬｏｇに固定してＰＴＦＥの量を変化させ
た場合の結果である。These are the results when the amount of SiC is fixed to Log and the amount of PTFE is varied.
第２表
第３表はＳｉＣの粒子径を０．３１ｔｍ、Ｓｉ（：量１
０ｇ、 ＰＴＦＥ量１０ｇに固定してＰＴＦＨの粒子径
を変化させた場合である。Table 2 and Table 3 show the particle diameter of SiC, 0.31 tm, Si (: amount 1
This is a case where the particle size of PTFH is changed while fixing the amount of PTFE to 10 g.
第３表
第１表乃至第２表に示す結果から明らかなようにＳＩＣ
の粒子径は０．１乃至０．３μのものがシートの仕上が
り等が良好でＰＴＦｔ！の量は５ＩＣＩＯ重量部に対し
２０乃至２００重量部が良いことがわかる。As is clear from the results shown in Table 3, Tables 1 and 2, SIC
PTFt! has a particle size of 0.1 to 0.3μ, which gives a good sheet finish. It is found that the amount of 20 to 200 parts by weight per 5 parts by weight of ICIO is good.
次にＳｔＣの粒子径を０．１乃至０．３ ｔｎｎ 、
ＰＴＦＢの量を２０乃至２００重量部とし、ＰＴＦＨの
粒子径を第３表の通り変化させてマトリックス６Ｃを製
作し、液体電解質の保持性を検討した。検討方法は第２
図に示すようにマトリックスを１ ａｍ Ｘ １０．５
ｃｍに切り出し、その一端の５Ｎを飽和）［ＣＩ水溶液
に浸漬して、１時間後の飽和ＫＣＩ水溶液の鉛直方向の
滲透距離を測定し、液体電解質の保持性の目安とした。Next, the particle size of StC was set to 0.1 to 0.3 tnn,
Matrix 6C was manufactured by varying the amount of PTFB from 20 to 200 parts by weight and the particle size of PTFH as shown in Table 3, and the retention of liquid electrolyte was examined. The second method of consideration is
The matrix is 1 am x 10.5 as shown in the figure.
cm, one end of which was saturated with 5N) [It was immersed in a CI aqueous solution, and the permeation distance in the vertical direction of the saturated KCI aqueous solution was measured after 1 hour, which was used as a measure of liquid electrolyte retention.
結果を第４表に示す。The results are shown in Table 4.
第４表
第４表に示す結果から明らかなように、ＰＴＦＨの量は
５ＩＧ１０重量部に対し、２０乃至１００重量部がよ＜
、ＰＴＦＥの粒径は０．１乃至０．３ ｔｒｍのもの
が保持性が良い（滲透距離１０ｃＩｍ）。以上を総合す
ると、ＳｉＣとＰＴＦＨの粒子径はそれぞれ０．１乃至
０．３μ、 ＰＴＦＥ量は５ｉＣ１０重量部に対し２０
乃至１００重量部とするべきことが結論される。Table 4 As is clear from the results shown in Table 4, the amount of PTFH is preferably 20 to 100 parts by weight per 10 parts by weight of 5IG.
, PTFE with a particle size of 0.1 to 0.3 trm has good retention (penetration distance 10 cIm). To summarize the above, the particle diameters of SiC and PTFH are each 0.1 to 0.3 μ, and the amount of PTFE is 20 parts by weight per 10 parts by weight of 5iC.
It is concluded that the amount should be between 100 parts by weight.
最後に以上の結果をＥＣ表示素子の特性によって確認す
る。第１図に示すＥＣ表示素子の電解質マトリクス６Ａ
を第５表の条件で作製し、色変化。Finally, the above results will be confirmed based on the characteristics of the EC display element. Electrolyte matrix 6A of the EC display element shown in FIG.
was produced under the conditions shown in Table 5, and the color changed.
応答性、液漏れなどを検討した。比較のために電解質と
してフッ化リチウム （ＬｉＦ）固定電解質を用いた全
固体型の素子も検討した。ＬｉＦは蒸着法で膜厚１ｎに
形成し、対向電極はアルミニウムを当該ＬｉＰ蒸着膜上
に１＃ｌｌ厚に形成して電極とした。We examined responsiveness, liquid leakage, etc. For comparison, we also investigated an all-solid-state device using a fixed lithium fluoride (LiF) electrolyte. LiF was formed to a thickness of 1n by a vapor deposition method, and the counter electrode was formed by forming aluminum to a thickness of 1#ll on the LiP vapor-deposited film.
ＥＣ表示素子の特性はＥＣ表示素子の表示電極９を対向
電極５に対し、−２，５ＶとＯＶに各５秒宛保持し、そ
の５万回繰り返し後の色変化と応答特性で評価した。応
答特性は５００ｎ−における吸光度０．３の変化に要す
る時間とした。結果を第５表に示した。The characteristics of the EC display element were evaluated by keeping the display electrode 9 of the EC display element at -2.5V and OV for 5 seconds each with respect to the counter electrode 5, and by the color change and response characteristics after repeating this 50,000 times. The response characteristic was defined as the time required for a change in absorbance of 0.3 at 500 n-. The results are shown in Table 5.
第５表
第５表においては、前述の結論と一致するものが良好な
特性を示していることがわかる。このようにして電解質
マトリクス６Ａにより、応答性に優れ、液漏れのないＥ
Ｃ表示素子を製作することが可能になるが、マトリクス
６Ｃは白色であるので、これを背景板としても兼用でき
るメリットもある。Table 5 In Table 5, it can be seen that those that are consistent with the above-mentioned conclusion exhibit good characteristics. In this way, the electrolyte matrix 6A provides an E with excellent responsiveness and no leakage.
Although it becomes possible to manufacture a C display element, since the matrix 6C is white, there is also the advantage that it can also be used as a background plate.
以上の説明から明らかなようにこの発明によれば、表示
電極と対向電極との間に液体電解質を有するエレクトロ
クロミック表示素子において、シリコンカーバイドの粒
子をポリテトラフロロエチレンの粒子で結着してなる多
孔質体に液体電解質を含浸させたので、ポリテトラフロ
ロエチレンで結着されたシリコンカーバイドは多孔質の
マトリクスを形成し、液体電解質がその細孔によく吸収
保持される結果、液体電解質がＥＣ表示素子外部に漏出
することがなくなり、液体電解質の長所である高速応答
性と、高い信頼性とを兼ね備えたＥＣ表示素子を製造す
ることが可能となる。As is clear from the above description, according to the present invention, in an electrochromic display element having a liquid electrolyte between a display electrode and a counter electrode, silicon carbide particles are bonded with polytetrafluoroethylene particles. Since the porous body is impregnated with the liquid electrolyte, the silicon carbide bonded with polytetrafluoroethylene forms a porous matrix, and the liquid electrolyte is well absorbed and retained in the pores. There is no leakage to the outside of the display element, and it becomes possible to manufacture an EC display element that combines the advantages of liquid electrolytes, such as high-speed response and high reliability.
第１図はこの発明の実施例に係るＥＣ表示素子。
の模式断面図、第２図はマトリクスの液体保持性を試験
する方法を示す模式断面図、第３図は従来のＥＣ表示素
子を示す模式断面図である。
１．２ニガラス基板、３：ＩＴＯ透明電極、４：エレク
トロクロミソク発色層、５：対向電極、６Ａ：電解質マ
トリクス、７：スペーサ、８：シール部１．９：表示電
極、１０：シリコンカーバイドの粒子、１１：ポリテト
ラフロロエチレンの粒子。FIG. 1 shows an EC display element according to an embodiment of the invention. FIG. 2 is a schematic cross-sectional view showing a method of testing the liquid retention property of a matrix, and FIG. 3 is a schematic cross-sectional view showing a conventional EC display element. 1.2 Glass substrate, 3: ITO transparent electrode, 4: Electrochromic coloring layer, 5: Counter electrode, 6A: Electrolyte matrix, 7: Spacer, 8: Seal part 1.9: Display electrode, 10: Silicon carbide Particles 11: Particles of polytetrafluoroethylene.
Claims (1)
レクトロクロミック表示素子において、シリコンカーバ
イドの粒子をポリテトラフロロエチレンの粒子で結着し
てなる多孔質体を前記表示電極と対向電極の間に配置し
、この多孔質体に液体電解質を含浸させたことを特徴と
するエレクトロクロミック表示素子。 ２）特許請求の範囲第１項記載の表示素子において、シ
リコンカーバイドの粒子径は０．１乃至０．３μｍであ
ることを特徴とするエレクトロクロミック表示素子。 ３）特許請求の範囲第１項記載の表示素子において、ポ
リテトラフロロエチレンの粒子径は０．１乃至０．３μ
ｍであることを特徴とするエレクトロクロミック表示素
子。 ４）特許請求の範囲第１項記載の表示素子において、ポ
リテトラフロロエチレンとシリコンカーバイドの混合量
をシリコンカーバイド１０重量部に対し、ポリテトラフ
ロロエチレンを２０乃至１００重量部加えることを特徴
とするエレクトロクロミック表示素子。[Claims] 1) In an electrochromic display element having a liquid electrolyte between a display electrode and a counter electrode, a porous body formed by bonding silicon carbide particles with polytetrafluoroethylene particles is used as the display element. An electrochromic display element, characterized in that it is disposed between an electrode and a counter electrode, and the porous body is impregnated with a liquid electrolyte. 2) An electrochromic display element according to claim 1, wherein the silicon carbide has a particle diameter of 0.1 to 0.3 μm. 3) In the display element according to claim 1, the particle size of polytetrafluoroethylene is 0.1 to 0.3μ.
An electrochromic display element characterized in that m. 4) The display element according to claim 1, characterized in that the mixed amount of polytetrafluoroethylene and silicon carbide is 20 to 100 parts by weight of polytetrafluoroethylene per 10 parts by weight of silicon carbide. Electrochromic display element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30029186A JPS63153525A (en) | 1986-12-17 | 1986-12-17 | Electrochromic display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30029186A JPS63153525A (en) | 1986-12-17 | 1986-12-17 | Electrochromic display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63153525A true JPS63153525A (en) | 1988-06-25 |
Family
ID=17883018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30029186A Pending JPS63153525A (en) | 1986-12-17 | 1986-12-17 | Electrochromic display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63153525A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1519220A1 (en) * | 2003-09-27 | 2005-03-30 | 3M Innovative Properties Company | Electrochemical display device |
| JP2005099249A (en) * | 2003-09-24 | 2005-04-14 | Minolta Co Ltd | Electrochromic element and driving method of the element |
| JP2005189384A (en) * | 2003-12-25 | 2005-07-14 | Sony Corp | Electrochemical light controlling device and its driving method |
| CN1324392C (en) * | 2002-04-26 | 2007-07-04 | 株式会社普利司通 | Particle for image display and its apparatus |
| JP2007529781A (en) * | 2004-04-19 | 2007-10-25 | エルジー・ケム・リミテッド | Gel polymer electrolyte using ionic liquid and electrochromic device using the same |
| CN111399299A (en) * | 2020-03-18 | 2020-07-10 | 东华大学 | Pore structure electrolyte film for electrochromism and preparation and application thereof |
-
1986
- 1986-12-17 JP JP30029186A patent/JPS63153525A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324392C (en) * | 2002-04-26 | 2007-07-04 | 株式会社普利司通 | Particle for image display and its apparatus |
| JP2005099249A (en) * | 2003-09-24 | 2005-04-14 | Minolta Co Ltd | Electrochromic element and driving method of the element |
| EP1519220A1 (en) * | 2003-09-27 | 2005-03-30 | 3M Innovative Properties Company | Electrochemical display device |
| WO2005033789A1 (en) * | 2003-09-27 | 2005-04-14 | 3M Innovative Properties Company | Electrochemical display device |
| JP2005189384A (en) * | 2003-12-25 | 2005-07-14 | Sony Corp | Electrochemical light controlling device and its driving method |
| JP2007529781A (en) * | 2004-04-19 | 2007-10-25 | エルジー・ケム・リミテッド | Gel polymer electrolyte using ionic liquid and electrochromic device using the same |
| CN111399299A (en) * | 2020-03-18 | 2020-07-10 | 东华大学 | Pore structure electrolyte film for electrochromism and preparation and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3840288A (en) | Electrochromic display having electro-catalyst | |
| US4488780A (en) | Method of producing a color change in a chemically coupled color-changing display | |
| GB2023867A (en) | Counter electrode for electrochromic device | |
| JPS63153525A (en) | Electrochromic display element | |
| GB2230870A (en) | Electrochromic device | |
| EP0081031B1 (en) | Chemically coupled color-changing display | |
| TWI289236B (en) | Electrochromic display device | |
| GB2026189A (en) | Electrochromic display device | |
| JP2005099249A (en) | Electrochromic element and driving method of the element | |
| US4392721A (en) | Electrochromic cell having a mixed solid ion-conducting layer | |
| US4501472A (en) | Tunable electrochromic filter | |
| USH264H (en) | Electrochromic display device | |
| JPS5891431A (en) | Electrochromic display element | |
| JPS63148240A (en) | Electrochromic display element | |
| JPS60247226A (en) | Dimming mirror | |
| JPH06202166A (en) | Electrochromic element | |
| JPS62115129A (en) | Electrochromic display element | |
| JPS62295031A (en) | Electrochromic display device | |
| JPH0371113A (en) | Electrochromic element | |
| GB2067780A (en) | Electro-chromic displays | |
| JPS61145536A (en) | Electrochromic display element | |
| JPH0371112A (en) | Electrochromic element | |
| KR980009422A (en) | Multicolor electrochromic composition and multicolor electrochromic device | |
| JPS589428B2 (en) | Hiyojisouchi | |
| JPH0342635A (en) | Electrochromic element |