JPS63253925A - Electrochromic element - Google Patents

Electrochromic element

Info

Publication number
JPS63253925A
JPS63253925A JP62089335A JP8933587A JPS63253925A JP S63253925 A JPS63253925 A JP S63253925A JP 62089335 A JP62089335 A JP 62089335A JP 8933587 A JP8933587 A JP 8933587A JP S63253925 A JPS63253925 A JP S63253925A
Authority
JP
Japan
Prior art keywords
resin
substrate
electrochromic element
ultraviolet
electrochromic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62089335A
Other languages
Japanese (ja)
Inventor
Takaaki Mori
崇彰 森
Mamoru Kato
守 加藤
Atsushi Minoura
淳 箕浦
Nariyuki Takahashi
高橋 成幸
Toshiyasu Ito
伊藤 敏安
Junichi Shimada
潤一 島田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP62089335A priority Critical patent/JPS63253925A/en
Publication of JPS63253925A publication Critical patent/JPS63253925A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/15Devices 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
    • G02F1/153Constructional details
    • G02F1/1533Constructional details structural features not otherwise provided for

Abstract

PURPOSE:To simplify a manufacturing process by using a material having UV absorptivity for a substrate for forming an electrochromic element. CONSTITUTION:The electrochromic element 2 is joined to one face of the transparent substrate 1. This substrate 1 is formed of a resin having the UV absorptivity or resin incorporated therein with a UV absorbent in order to prevent the deterioration of the electrochromic element 2 by UV rays. The material for the substrate 1 are exemplified by a polycarbonate resin, polyester resin, acrylic resin, PVC resin, epoxy resin, acetal resin, polyamide resin, PE resin, PP resin, polystyrene resin, etc. The need for separately providing a UV cut filter is thereby eliminated and the manufacturing process is simplified.

Description

【発明の詳細な説明】 発明の目的 (産業上の利用分野) この発明はエレクトロクロミック素子に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to an electrochromic device.

(従来の技術) 従来から、電気化学的な酸化還元反応に基づいて発色、
消色を伴う素子として2枚の透明電極間に酸化発色層と
還元発色層を介在させたエレクトロクコミック素子があ
る。この種のエレクトロクロミック素子は紫外線によっ
て劣化するものが多く、その劣化防止のため、例えば第
4図に示すように無機ガラス等よりなる基板2Lの前面
に紫外線カツトフィルタ22を設けたり、紫外線カツト
膜を設けたりしている。なお、23はエレクトロクロミ
ック素子である。
(Conventional technology) Traditionally, color development and
As an element that involves decoloring, there is an electrocomic element in which an oxidation coloring layer and a reduction coloring layer are interposed between two transparent electrodes. Many of these types of electrochromic elements are degraded by ultraviolet rays, and in order to prevent this deterioration, for example, as shown in FIG. We have also set up Note that 23 is an electrochromic element.

(発明が解決しようとする問題点) ところが、このような紫外線カツトフィルタ22や紫外
線カツト膜を基板21上に設けるためには、エレクトロ
クロミック素子の製作工程とは別の処理工程が必要であ
り、エレクトロクロミック素子の製作工程の簡略化や低
コスト化にはつながらないものである。
(Problems to be Solved by the Invention) However, in order to provide such an ultraviolet cut filter 22 and an ultraviolet cut film on the substrate 21, a treatment process separate from the manufacturing process of the electrochromic element is required. This does not lead to simplification of the manufacturing process or cost reduction of electrochromic elements.

発明の構成 (問題点を解決するための手段) この発明は前記問題点を解決するため、エレクトロクロ
ミック素子を形成する基板を紫外線吸収性を備えた材料
とするという構成を採用している。
Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention employs a structure in which the substrate on which the electrochromic element is formed is made of a material having ultraviolet absorbing properties.

(作用) 従って、基板により紫外線が吸収され、エレクトロクロ
ミック素子の劣化が防止される。
(Function) Therefore, ultraviolet rays are absorbed by the substrate, and deterioration of the electrochromic element is prevented.

(実施例) 以下、この発明を具体化した一実施例を第1゜2図に従
って説明する。
(Embodiment) An embodiment embodying the present invention will be described below with reference to FIGS. 1-2.

第1図に示すように、透明な、基板1の片面にはエレク
トロクロミック素子2が接合されており、同基板Iは紫
外線によるエレクトロクロミック素子2の劣化を防止す
るために紫外線吸収性を備えた樹脂、又は紫外線吸収剤
を混入した樹脂により形成されている。
As shown in FIG. 1, an electrochromic element 2 is bonded to one side of a transparent substrate 1, and the substrate I has ultraviolet absorbing properties to prevent deterioration of the electrochromic element 2 due to ultraviolet rays. It is made of resin or resin mixed with an ultraviolet absorber.

前記基板1の材質としてはポリカーボネイト樹脂、ポリ
エステル樹脂、アクリル酸樹脂、ポリ塩化ビニル樹脂、
エポキシ樹脂、アセタール樹脂、ポリアミド樹脂、ポリ
エチレン樹脂、ポリプロピレン樹脂、ポリスチレン樹脂
等が挙げられる。ポリカーボネイト樹脂はそれ自身に紫
外線吸収性を備えているため、単独で使用可能であり、
390 nm(ナノメートル)以下の波長の紫外線を吸
収することができる。
The material of the substrate 1 includes polycarbonate resin, polyester resin, acrylic acid resin, polyvinyl chloride resin,
Examples include epoxy resin, acetal resin, polyamide resin, polyethylene resin, polypropylene resin, polystyrene resin, and the like. Polycarbonate resin itself has UV absorbing properties, so it can be used alone.
It can absorb ultraviolet light with a wavelength of 390 nm (nanometers) or less.

又、ポリカーボネイト樹脂以外の樹脂はそれ自身に紫外
線吸収性を備えていないため、紫外線吸収剤を混入する
。この紫外線吸収剤としてはベンゾフェノン系、ベンゾ
トリアゾル系、ヱ換アクリルニトリル系、サリチレート
系の化合物等が挙げられる。表1−1及び表1−2に各
界の物質を示す。
Furthermore, since resins other than polycarbonate resin do not have ultraviolet absorbing properties themselves, an ultraviolet absorber is mixed therein. Examples of the ultraviolet absorber include benzophenone-based, benzotriazole-based, dimethylated acrylonitrile-based, and salicylate-based compounds. Tables 1-1 and 1-2 show substances from various fields.

次に各樹脂に混入する紫外線吸収剤を表2に示す。これ
らの紫外線吸収剤は250nm〜420nm間に最大吸
収波長を持つ。又、第2図に2−ヒドロキシ−4−メト
キシベンゾフェノンの吸収波長と吸光度との関係を示す
Next, Table 2 shows the ultraviolet absorbers mixed into each resin. These ultraviolet absorbers have a maximum absorption wavelength between 250 nm and 420 nm. Further, FIG. 2 shows the relationship between absorption wavelength and absorbance of 2-hydroxy-4-methoxybenzophenone.

(以下、余白) 表2 前記エレクトロクロミック素子2は透明電極3、酸化発
色層4、固体のイオン供与体層5、還元発色層6及びア
ルミニウム電極7の積層物からなっている。透明電極3
及びアルミニウム電極7の一側部には駆動電圧印加用の
リード線8,9が半田10により接続されている。そし
て、アルミニウム電極7の外側にはエレクトロクロミッ
ク素子2を覆うように封止材11が設けられている。
(Hereinafter, blank spaces) Table 2 The electrochromic device 2 consists of a laminate of a transparent electrode 3, an oxidized coloring layer 4, a solid ion donor layer 5, a reduced coloring layer 6, and an aluminum electrode 7. Transparent electrode 3
Lead wires 8 and 9 for applying a driving voltage are connected to one side of the aluminum electrode 7 by solder 10. A sealing material 11 is provided outside the aluminum electrode 7 so as to cover the electrochromic element 2.

このように、この実施例では基板1を紫外線吸収性を備
えた、又は紫外線吸収剤を混入した透明樹脂により形成
しているため、従来とは異なり基板lに対して紫外線カ
ツトフィルタを設けずに紫外線を吸収でき、エレクトロ
クロミック素子2の劣化を防止することができる。
As described above, in this embodiment, since the substrate 1 is made of a transparent resin having ultraviolet absorbing properties or containing an ultraviolet absorber, unlike the conventional method, no ultraviolet cut filter is provided for the substrate l. It can absorb ultraviolet rays and prevent deterioration of the electrochromic element 2.

又、この実施例では紫外線吸収性を備えた、又は紫外線
吸収剤を混入した樹脂により基板1を形成したので、従
来とは異なりエレクトロクロミック素子2の製作工程以
外の処理工程を必要とせず、エレクトロクロミック素子
の製作工程を簡略化できるとともに、製作コストを低減
することができる。
Further, in this embodiment, the substrate 1 is formed of a resin having ultraviolet absorbing properties or containing an ultraviolet absorber, so unlike the conventional method, no processing steps other than the manufacturing process of the electrochromic element 2 are required, and electrochromic The manufacturing process of the chromic element can be simplified and the manufacturing cost can be reduced.

なお、この発明は前記実施例に限定されるものではなく
、例えば、第3図に示すように前記実施例におけるアル
ミニウム電極に代えて透明電極12を用いるとともに、
同透明電極12の表面に前記基板1と同様に紫外線吸収
性を備えた基板13を設けてもよい。
Note that the present invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG. 3, a transparent electrode 12 is used in place of the aluminum electrode in the above-mentioned embodiment, and
A substrate 13 having ultraviolet absorbing properties like the substrate 1 may be provided on the surface of the transparent electrode 12.

又、前記実施例では固体のイオン供与体層5を設けたエ
レクトロクロミック素子2に具体化したが、半固体ある
いは液体のイオン供与体層を設けたエレクトロクロミッ
ク素子に具体化してもよい。
Further, in the above embodiment, the electrochromic device 2 is provided with a solid ion donor layer 5, but the electrochromic device 2 may be provided with a semi-solid or liquid ion donor layer.

発明の効果 以上詳述したように、この発明によれば紫外線カツトフ
ィルタを別途設けることなくエレクトロクロミック素子
の紫外線による劣化を防止できるとともに、エレクトロ
クロミック素子の製作工程以外の処理工程を要しないた
め、その製作工程の簡略化及び製作コストの低減を図る
ことができる優れた効果がある。
Effects of the Invention As detailed above, according to the present invention, it is possible to prevent deterioration of an electrochromic element due to ultraviolet rays without separately providing an ultraviolet cut filter, and no processing steps other than the manufacturing process of the electrochromic element are required. This has the excellent effect of simplifying the manufacturing process and reducing manufacturing costs.

【図面の簡単な説明】 第1図はこの発明を具体化した一実施例を示す断面図、
第2図は紫外線吸収剤の一例における吸収波長と吸光度
との関係を示すグラフ、第3図は側倒を示す断面図、第
4図は従来例を示す断面図である。 図中、■は基板、2はエレクトロクロミック素子、3.
7.12は電極、4は酸化発色層、6は還元発色層であ
る。 特許出願人    豊田合成 株式会社代 理 人  
  弁理士 恩1)博宣波 長(nm) 2−ヒドロキ:/l−4−メト牛シベンゾフエノフの吸
収第3図
[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a sectional view showing an embodiment of the present invention;
FIG. 2 is a graph showing the relationship between absorption wavelength and absorbance in an example of an ultraviolet absorber, FIG. 3 is a sectional view showing a side-positioned case, and FIG. 4 is a sectional view showing a conventional example. In the figure, ■ is a substrate, 2 is an electrochromic element, and 3.
7.12 is an electrode, 4 is an oxidation coloring layer, and 6 is a reduction coloring layer. Patent applicant Toyoda Gosei Co., Ltd. Agent
Patent Attorney On 1) Hironobu Wave Length (nm) 2-Hydroxy:/l-4-methoxybenzofuenov absorption diagram 3

Claims (1)

【特許請求の範囲】 1 2枚の電極(3、7、12)間に酸化発色層(4)
及び/又は還元発色層(6)を介在させたエレクトロク
ロミック素子において、 該エレクトロクロミック素子を形成する基板(1)を紫
外線吸収性を備えた材料としたことを特徴とするエレク
トロクロミック素子。
[Claims] 1. Oxidized coloring layer (4) between two electrodes (3, 7, 12)
and/or an electrochromic element having a reduction coloring layer (6) interposed therebetween, characterized in that the substrate (1) on which the electrochromic element is formed is made of a material having ultraviolet absorbing properties.
JP62089335A 1987-04-10 1987-04-10 Electrochromic element Pending JPS63253925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62089335A JPS63253925A (en) 1987-04-10 1987-04-10 Electrochromic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62089335A JPS63253925A (en) 1987-04-10 1987-04-10 Electrochromic element

Publications (1)

Publication Number Publication Date
JPS63253925A true JPS63253925A (en) 1988-10-20

Family

ID=13967817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62089335A Pending JPS63253925A (en) 1987-04-10 1987-04-10 Electrochromic element

Country Status (1)

Country Link
JP (1) JPS63253925A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054895A (en) * 1988-04-08 1991-10-08 Toyoda Gosei Co. Ltd. Electrochromic element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054895A (en) * 1988-04-08 1991-10-08 Toyoda Gosei Co. Ltd. Electrochromic element

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