JPH0216895B2 - - Google Patents
Info
- Publication number
- JPH0216895B2 JPH0216895B2 JP57057512A JP5751282A JPH0216895B2 JP H0216895 B2 JPH0216895 B2 JP H0216895B2 JP 57057512 A JP57057512 A JP 57057512A JP 5751282 A JP5751282 A JP 5751282A JP H0216895 B2 JPH0216895 B2 JP H0216895B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- present
- display
- display device
- decoloring
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004040 coloring Methods 0.000 claims description 3
- 206010063836 Atrioventricular septal defect Diseases 0.000 description 7
- 238000001211 electron capture detection Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000004042 decolorization Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance 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
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
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
【発明の詳細な説明】
本発明はエレクトロクロミツク表示装置の駆動
方法に関し、エレクトロクロミツク（以下ECD
と略す）材料としてスチリル類似化合物を用いた
セグメント及び文字表示の消色レスポンスを速め
ることのできる駆動方法を提供することを目的と
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for driving an electrochromic display device.
An object of the present invention is to provide a driving method that can speed up the decoloring response of segments and character displays using styryl-like compounds as materials.
本発明で用いているECD材料としてのスチリ
ル類似化合物は、従来の液晶とは異なり視角依存
性がなく、また表示以外の部分は白色であり、一
方従来のECDに比較して有機材料を用いている
事から青以外の色も発色可能であり、且つカラー
化も容易であり、電流値も低いという特徴を有す
るものである。 The styryl-like compound used as the ECD material used in the present invention has no viewing angle dependence, unlike conventional liquid crystals, and the area other than the display is white. Because of this, it is possible to produce colors other than blue, it is easy to create colors, and the current value is low.
一方駆動方法に関しては従来のECDとは異な
る。 On the other hand, the driving method is different from conventional ECD.
以下本発明の例としてはセグメント表示に関し
てのものであるが、文字表示の場合も原理的には
変わらない。 The following example of the present invention relates to segment display, but the principle is the same for character display.
一般に従来のECDでの発色表示方法として特
に長時間の発色表示セグメントに関して、デコー
ドされたセグメントデコード期間の初期にそのセ
グメントに電圧を一時的に印加し、その後はメモ
リー性を利用する事から、電圧印加を中止する駆
動方法が行なわれている。 In general, as a color display method in conventional ECDs, especially for long color display segments, a voltage is temporarily applied to the decoded segment at the beginning of the decoding period, and then the memory property is utilized. A driving method is used in which the application is stopped.
ECD材料としてスチリル類似化合物を用いた
場合、液晶に比べ見栄えが良く、且つ従来の
ECDに比べ多色化，低電流等の特長があるが、
消色反応が他のECD材料とは異なるため、駆動
方法に関しては単に同じ方法を用いるだけでは十
分な結果は得られない。 When a styryl-like compound is used as an ECD material, it has a better appearance compared to liquid crystal, and
Compared to ECD, it has features such as multiple colors and lower current.
Since the decolorization reaction is different from other ECD materials, sufficient results cannot be obtained simply by using the same driving method.
本発明はスチリル類似化合物を発色材とするエ
レクトロクロミツク表示装置において対極に対し
−1.5V以上０未満の範囲の２種類の電位パルス
波形を用い、消色初期のパルス電圧の絶対値を消
色中のそれより大きくすることにより消色レスポ
ンスを早めたものである。 The present invention uses two types of potential pulse waveforms in the range of -1.5 V or more and less than 0 with respect to a counter electrode in an electrochromic display device using a styryl-like compound as a coloring material, and the absolute value of the pulse voltage at the initial stage of color erasure is By making it larger than the one in the middle, the erasing response is accelerated.
以下に本発明の一実施例を図面を用いて説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明のエレクトロクロミツク表示装
置の基本的な構成を示す断面図であり、１はガラ
スまたはプラスチツクなどの透明基板、２は酸化
インジウムや酸化錫などの透明電極からなる表示
極、４は同じく透明電極からなる対極、３は同じ
く透明電極からなる消色している表示電極、５は
封止部、６はエレクトロクロミツク材料である。 FIG. 1 is a sectional view showing the basic structure of the electrochromic display device of the present invention, in which 1 is a transparent substrate made of glass or plastic, 2 is a display electrode made of transparent electrodes such as indium oxide or tin oxide, 4 is a counter electrode made of a transparent electrode, 3 is a decolorized display electrode made of a transparent electrode, 5 is a sealing portion, and 6 is an electrochromic material.
次にこの表示装置の駆動方法について説明す
る。第２図に基本的な駆動方法を示す。第２図に
おいて２は表示極、４は対極、３は消色している
表示極、７は消色のための電源である。スチリル
類似化合物の発色閾値電圧は0.8Vで、これ以上
の電圧（例えば約2V）を印加して発色させた表
示極を消色するにあたり、第３図ｂに示すような
駆動電圧を印加する。第３図ａはその比較例であ
り、消色を維持する電圧が直流電圧となつてい
る。これに対し、本願実施例である同図ｂは消色
を維持する電圧がパルス波形になつており、消色
初期の電圧の絶対値の消色を維持する際の電圧よ
り高くとつている。消色維持電圧は0Vでも消色
するが、第３図ｂのように電圧を印加した方が消
色レスポンスは早くなる。この際印加される電圧
は消色初期パルスよりも絶対値として小さく、−
1.5V以上０末満の範囲であることが適当である。
これよりも絶対値的に大きい負の電圧を印加する
と電極が還元されて劣化してゆく。またパルス波
形はパルス印加時間が長くなるほど消色が早くな
るが、本発明の駆動方法の本質的な原理には大き
な差はない。なおパルス電圧を印加することによ
り、直流の場合に比べて、パネルの表示寿命が長
くなる。 Next, a method for driving this display device will be explained. Figure 2 shows the basic driving method. In FIG. 2, 2 is a display electrode, 4 is a counter electrode, 3 is a decoloring display electrode, and 7 is a power source for decoloring. The coloring threshold voltage of a styryl-like compound is 0.8V, and in order to decolor a display electrode that has been colored by applying a voltage higher than this voltage (for example, about 2V), a driving voltage as shown in FIG. 3b is applied. FIG. 3a shows a comparative example, in which the voltage that maintains decolorization is a DC voltage. On the other hand, in the embodiment of the present invention shown in FIG. 5B, the voltage for maintaining decolorization has a pulse waveform, and the absolute value of the voltage at the initial stage of decolorization is higher than the voltage for maintaining decolorization. Although decoloring occurs even when the decoloring maintenance voltage is 0V, the decoloring response becomes faster when a voltage is applied as shown in FIG. 3b. The voltage applied at this time is smaller in absolute value than the initial pulse of color erasure, and -
It is appropriate that the voltage be in the range from 1.5V to 0.
If a negative voltage larger in absolute value than this is applied, the electrode will be reduced and deteriorated. Furthermore, the longer the pulse application time, the faster the pulse waveform fades, but there is no major difference in the essential principle of the driving method of the present invention. Note that by applying a pulse voltage, the display life of the panel becomes longer than in the case of direct current.
以上のように本発明によれば消色レスポンスを
早めることができる。 As described above, according to the present invention, the decoloring response can be accelerated.
第１図はエレクトロクロミツク表示装置の断面
図、第２図は本発明のエレクトロクロミツク表示
装置の駆動方法を示す基本構成図、第３図ａは比
較例としての電圧波形図、第３図ｂは本発明の一
実施例を示す電圧波形図である。
１……透明基板、２……表示極、３……消色し
ている表示極、４……対極、５……封止部、６…
…ECD材料、７……電源。
FIG. 1 is a sectional view of an electrochromic display device, FIG. 2 is a basic configuration diagram showing the driving method of the electrochromic display device of the present invention, FIG. 3a is a voltage waveform diagram as a comparative example, and FIG. b is a voltage waveform diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Transparent substrate, 2... Display electrode, 3... Discolored display electrode, 4... Counter electrode, 5... Sealing part, 6...
...ECD materials, 7...Power supply.
Claims (1)
ロクロミツク表示装置を消色するに際して、電位
波形が対極に対し−1.5V以上０未満の範囲の２
種類の電位パルス波形であり、消色初期の電圧を
消色中の電圧より絶対値として大きくしたことを
特徴とするエレクトロクロミツク表示装置の駆動
方法。1. When decoloring an electrochromic display device whose coloring layer is a styryl-like compound, 2.
1. A method for driving an electrochromic display device, characterized in that the voltage at the initial stage of erasing is larger in absolute value than the voltage during erasing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57057512A JPS58184128A (en) | 1982-04-06 | 1982-04-06 | Driving method of electrochromic display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57057512A JPS58184128A (en) | 1982-04-06 | 1982-04-06 | Driving method of electrochromic display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58184128A JPS58184128A (en) | 1983-10-27 |
| JPH0216895B2 true JPH0216895B2 (en) | 1990-04-18 |
Family
ID=13057780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57057512A Granted JPS58184128A (en) | 1982-04-06 | 1982-04-06 | Driving method of electrochromic display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58184128A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2868850B1 (en) * | 2004-04-09 | 2006-08-25 | Saint Gobain | METHOD FOR SUPPLYING AN ELECTROCOMMANDABLE DEVICE HAVING VARIABLE OPTICAL AND / OR ENERGY PROPERTIES |
-
1982
- 1982-04-06 JP JP57057512A patent/JPS58184128A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58184128A (en) | 1983-10-27 |
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