JPS6039624A - Electrochromic display device - Google Patents
Electrochromic display deviceInfo
- Publication number
- JPS6039624A JPS6039624A JP58147650A JP14765083A JPS6039624A JP S6039624 A JPS6039624 A JP S6039624A JP 58147650 A JP58147650 A JP 58147650A JP 14765083 A JP14765083 A JP 14765083A JP S6039624 A JPS6039624 A JP S6039624A
- Authority
- JP
- Japan
- Prior art keywords
- ecd
- acid
- electrolyte
- electrode
- vinyl group
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- 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
本発明はエレクトロクロミック表示装置（以下ＥＣＵと
略す）、特にその電解液に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrochromic display device (hereinafter abbreviated as ECU), and particularly to an electrolyte thereof.
従来例の構成とそのＩｌ「利点
ＥＣＤはエレクトロクロミック表示材料を表示極とし、
それに対向して陥凹された対向電極との間に電解液が存
在し、表示極と対向電極間に電圧が印加した際に、表示
材料が電気化学的に酸化または還元して発色する現象を
表示の原理とした表示装置である。Structure of conventional example and its advantages ECD uses electrochromic display material as a display electrode,
An electrolytic solution exists between the opposing electrode and the counter electrode, and when a voltage is applied between the display electrode and the counter electrode, the display material electrochemically oxidizes or reduces and colors. This is a display device based on the display principle.
従来、この種の表示装置では、表示材料に酸化タングス
テンや酸化モリブデン等の遷移金属酸化物、電解液とし
ては表示材料の溶Ｍ防止の観点から有機電解質のものが
広く用いられている。Conventionally, in this type of display device, a transition metal oxide such as tungsten oxide or molybdenum oxide is widely used as a display material, and an organic electrolyte is widely used as an electrolyte from the viewpoint of preventing dissolution of the display material.
ところが、かかるＥＣＤでは装置の保存および駆動中の
特性の低下が著しく、特に高温の環境においては短時間
で劣化し、同一駆動電圧では着色製度が淡くなる（すな
わち着色電気量が小さくなる）という欠点を有していた
。これは、かかる環境中で表示材料である酸化タングス
テンや酸化モリブデンの特性が劣化するために起こるこ
とが判明している。However, such ECDs have the disadvantage that the characteristics of the device deteriorate significantly during storage and operation, particularly in a high-temperature environment, in a short period of time, and that the degree of coloring becomes lighter (that is, the amount of colored electricity becomes smaller) at the same driving voltage. It had It has been found that this occurs because the properties of display materials such as tungsten oxide and molybdenum oxide deteriorate in such an environment.
発明の目的
本発明は劣化を防止する材料について詳細に検討した結
果得られたもので、保存および駆動中の劣化の少ない長
寿命のＥＣＤを提供することを目的とするものである。OBJECTS OF THE INVENTION The present invention was obtained as a result of detailed studies on materials that prevent deterioration, and an object of the present invention is to provide an ECD with a long life and less deterioration during storage and operation.
発明の構成
本発明は上記の目的を達成するため、極板または電解液
にビニル基を有する有機酸を添加して用いる構成にした
ものである。Structure of the Invention In order to achieve the above object, the present invention has a structure in which an organic acid having a vinyl group is added to an electrode plate or an electrolytic solution.
本発明の構成をさらに詳しく説明すると、ビニル基を有
するイイ機酸としては、アクリル酸、メタクリル酸、イ
タコン酸、スチレンスルホン酸等が適している。これら
はＥＣＤセル組立の際、電解液中に適量混合して用いる
のが最も一般的な方法であり、また対向電極や反射板に
混合含浸させても良い。さらに該有機酸はいずれもビニ
ル基を有するためポリマー化じやすく、該ポリマー膜を
表示極上に形成させても表示紙の劣化防止効果を有する
。To explain the structure of the present invention in more detail, suitable acids having a vinyl group include acrylic acid, methacrylic acid, itaconic acid, and styrenesulfonic acid. The most common method is to mix an appropriate amount of these into an electrolytic solution when assembling an ECD cell, or they may be mixed and impregnated into a counter electrode or a reflecting plate. Furthermore, since all of the organic acids have vinyl groups, they are easily polymerized, and even if the polymer film is formed on top of the display, it has the effect of preventing deterioration of the display paper.
このような本発明によれば、添加された有機酸が酸化タ
ングステンや酸化モリブデン表示材料の特性劣化を防ぎ
、着色濃度の低下の少ない寿命のすぐれたＥＣＤが得ら
れる。According to the present invention, the added organic acid prevents the characteristics of the tungsten oxide or molybdenum oxide display material from deteriorating, and an ECD with an excellent life span and less decrease in coloring density can be obtained.
実施例の説明 以下本発明の実施例を図面に基づいて説明する。Description of examples Embodiments of the present invention will be described below based on the drawings.
（実施例１）
第１図は本実施例のＥＣＤを示す。（１）はガラス基板
、（２）はＩｎ２Ｏ５，５ｎ０２などの薄膜透明電極、
（３）は表示極で、ＷＯ３を蒸着したものである。（４
）は背面ガラス基板、（５）はアルミナ反射板、（６）
はカーボンを主体とする対向電極、（７）は対向電極（
６）の集電体、（８）は電解液（０，８ＭのＬｉＣｌＯ
４を含む炭酸プロピレン溶液）である。ＷＯ３を蒸着し
た部分以外の薄膜透明電極（２）上には５ｉ０２ など
の絶縁膜（９）が設けられている。電解液（８）には有
機酸としてアクリル酸溶液を５％添加した。(Example 1) FIG. 1 shows the ECD of this example. (1) is a glass substrate, (2) is a thin film transparent electrode such as In2O5, 5n02,
(3) is a display electrode on which WO3 is vapor-deposited. (4
) is the back glass substrate, (5) is the alumina reflector, (6)
is a counter electrode mainly made of carbon, and (7) is a counter electrode (
6) current collector, (8) electrolyte solution (0.8M LiClO
4). An insulating film (9) such as 5i02 is provided on the thin film transparent electrode (2) other than the part where WO3 is deposited. A 5% acrylic acid solution was added to the electrolytic solution (8) as an organic acid.
（実施例２）
有機酸としてメタクリル酸溶液を１０％添加した電解液
を用いた以外は実施例１と同様にしてＥＣＵを作成した
。(Example 2) An ECU was created in the same manner as in Example 1 except that an electrolytic solution containing 10% methacrylic acid solution as an organic acid was used.
（実施例８）
有機酸としてイタコン酸粉末を１０％添加した電解液を
用いた以外は実施例１と同様にしてＥＣＤを作成した。(Example 8) An ECD was prepared in the same manner as in Example 1 except that an electrolytic solution containing 10% itaconic acid powder as an organic acid was used.
（実施例４）
有機酸としてスチレンスルホン酸粉末を１０％添加した
電解液を用いた以外は実施例１と同様にしてＥＣＤを作
成した。(Example 4) An ECD was prepared in the same manner as in Example 1 except that an electrolytic solution containing 10% styrene sulfonic acid powder as an organic acid was used.
（実施例５）
表示極上に有機酸ポリマー膜を形成させた例を第２図に
示す。表示極（３）上にポリスチレンスルホン酸をアル
ゴンスパッタ（真空度４Ｘ １０ Ｔｏｒｒ 。(Example 5) FIG. 2 shows an example in which an organic acid polymer film was formed on the top of the display. Polystyrene sulfonic acid was sputtered with argon onto the display electrode (3) (vacuum level: 4×10 Torr).
高周波電源出力８１０ Ｗ ） Ｌ／て、膜厚８０μの
ポリマー膜Ｑ１３を形成した。それ以外は実施例１と同
様にしてＥＣＤを作成した。A polymer film Q13 having a thickness of 80 μm was formed using a high frequency power supply output of 810 W) L/. ECD was produced in the same manner as in Example 1 except for the above.
（実施例６）
表示材料として酸化モリブデンを用いた以外は実地例１
と同様にしてＥＣＤを作成した。(Example 6) Practical example 1 except that molybdenum oxide was used as the display material
An ECD was created in the same manner.
第１表は実施例１〜６のＥＣＤについて７０°Ｃの恒温
槽中に保存し、着色電気量の変化（着色濃度に比例する
）を示したものである。なお、着色電気量は対向電極に
対して表示極に一１ｖ・２秒のノ（ルスを与えたときの
電気量であり、保存開始時を１００とし、低下変分を示
している。また、従来例１は有機酸を添加しない電解液
を用いた以外は実施例１．と同様にしてＥＣＤを作成し
たものであり、従来例２は有機酸を添加しない電解液を
用いた以外は実施例６と同様にしてＥＣＤを作成したも
のである。Table 1 shows the changes in the amount of colored electricity (proportional to the coloring density) for the ECDs of Examples 1 to 6 stored in a constant temperature bath at 70°C. Note that the amount of colored electricity is the amount of electricity when a voltage of 1 V/2 seconds is applied to the display electrode with respect to the counter electrode, and it shows a decreasing variation with the start of storage being 100. Conventional Example 1 is an ECD prepared in the same manner as in Example 1 except that an electrolytic solution to which no organic acid is added is used, and Conventional Example 2 is the same as Example 1 except that an electrolytic solution to which no organic acid is added is used. The ECD was created in the same manner as 6.
第 １ 表
第２表は実施例１〜６のＥＣＤと従来例１．２のＥＣＤ
について６０℃の環境で高温駆動試験を行ない、着色電
気量の変化を示したものである。駆動条件は±１ｖ・各
２秒である。Table 1 Table 2 shows the ECD of Examples 1 to 6 and the ECD of Conventional Example 1.2.
A high-temperature drive test was conducted in an environment of 60°C, and changes in the amount of coloring electricity were shown. The driving conditions are ±1v for 2 seconds each.
第 ２ 表
第１表、第２表から明らかなように本実施例０ＥＣＤは
いずれも従来例のＥＣＤに比べて、着色電気量の低下度
合が小さく、保存および駆動寿命の向上が見られた。Table 2 As is clear from Tables 1 and 2, the ECDs of Example 0 showed a smaller degree of decrease in the amount of coloring electricity and improved storage and drive life compared to the conventional ECD.
発明の効采
以上本発明によれば、極板または電解液番ζビニル基を
有する有機酸を添加したので、高温における保存および
駆動において、着色電気量の低下の少ない、優れたＥＣ
Ｄを得るに至ったものである。Effects of the Invention According to the present invention, since an organic acid having a vinyl group is added to the electrode plate or electrolyte, an excellent EC with less decrease in the amount of colored electricity during storage and operation at high temperatures can be achieved.
This is what led to me getting a D.
その結果、信頼性が高く、商品価値の大きいＥＣＤを提
供することが出来、工業的価値も大なるものとなる。As a result, it is possible to provide an ECD with high reliability and great commercial value, and the industrial value is also great.
第１図は本発明の一実施例のＥＣＤの断面図、第２図は
他の実施例のＥＣＤの断面図である。
（１）・・・ガラス基板、（２）・・・薄膜透明電極、
（３）・・・表示極（エレクトロクロミック表示材料）
、（５）・・・反射板、（６）・・・対向電極、（８）
・・・電解液、α（ト・・ポリマー膜代理人 森本義弘
第１図
第２図FIG. 1 is a cross-sectional view of an ECD according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view of an ECD according to another embodiment. (1)...Glass substrate, (2)...Thin film transparent electrode,
(3) Display electrode (electrochromic display material)
, (5)...Reflector plate, (6)...Counter electrode, (8)
... Electrolyte, α (g)... Polymer membrane agent Yoshihiro Morimoto Figure 1 Figure 2
Claims (1)
からな壬エレクトロクロミック表示装置であって、前記
極板または電解液にビニル基を有する有機酸を添加した
エレクトロクロミック表示装置。 ２、 ビニル基を有する有機酸として、アクリル酸、メ
タクリル酸、イタコン酸、スチレンスルホン酸の群より
選ばれる少なくとも１種を用いた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装置
。[Scope of Claims] 1. An electrochromic display device comprising a display electrode made of a transition metal oxide, a counter electrode, and an electrolyte, wherein an organic acid having a vinyl group is added to the electrode plate or the electrolyte. Chromic display device. 2. The electrochromic display according to claim 1, characterized in that at least one kind selected from the group of acrylic acid, methacrylic acid, itaconic acid, and styrene sulfonic acid is used as the organic acid having a vinyl group. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58147650A JPS6039624A (en) | 1983-08-11 | 1983-08-11 | Electrochromic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58147650A JPS6039624A (en) | 1983-08-11 | 1983-08-11 | Electrochromic display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6039624A true JPS6039624A (en) | 1985-03-01 |
| JPH0217008B2 JPH0217008B2 (en) | 1990-04-19 |
Family
ID=15435143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58147650A Granted JPS6039624A (en) | 1983-08-11 | 1983-08-11 | Electrochromic display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948238A (en) * | 1988-03-11 | 1990-08-14 | Matsushita Electric Industrial Co., Ltd. | Optical projection system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147654A (en) * | 1982-02-26 | 1983-09-02 | Matsushita Electric Ind Co Ltd | Optical type frequency generator |
-
1983
- 1983-08-11 JP JP58147650A patent/JPS6039624A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147654A (en) * | 1982-02-26 | 1983-09-02 | Matsushita Electric Ind Co Ltd | Optical type frequency generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948238A (en) * | 1988-03-11 | 1990-08-14 | Matsushita Electric Industrial Co., Ltd. | Optical projection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0217008B2 (en) | 1990-04-19 |
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