CH624821GA3 - - Google Patents
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- Publication number
- CH624821GA3 CH624821GA3 CH709178A CH709178A CH624821GA3 CH 624821G A3 CH624821G A3 CH 624821GA3 CH 709178 A CH709178 A CH 709178A CH 709178 A CH709178 A CH 709178A CH 624821G A3 CH624821G A3 CH 624821GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- counter electrode
- electrode
- additional electrode
- metals
- combination
- Prior art date
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
- G02F1/153—Constructional details
- G02F1/155—Electrodes
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
An additional electrode is provided for developing a secondary electrochromic phenomenon on a counter electrode apart from the major electrochromic phenomenon which is developed between one or more display electrodes and the counter electrode. Current flows from an additional electrode to the counter electrode in developing the secondary electrochromic phenomenon. Coloration of the counter electrode, where the magnitude of an overvoltage of the counter electrode is small is stabilized to thereby enhance electronic properties of the electrochromic display. The material of the additional electrode is selected from metals having an appropriate ionization tendency with respect to an electrolyte, such as Mg, Al, Zn, Cr, Fe, Ni, Sn, and Pb, or a combination thereof. Otherwise, the material of the additional electrode is selected to be an inert material with respect to the electrolyte such as Ag, Au, Pt, Pd, In2O3, and SnO2 or a combination thereof. The combination which is composed of both the appropriate ionization tendency metals and the inert metals can be available for the additional electrode. The electrochromic display can be controlled under one of several groups of driving techniques consisting of a potentiostatic driving, a constant current driving, and a constant voltage driving method.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7811177A JPS5412595A (en) | 1977-06-29 | 1977-06-29 | Driving method of electrochromic display device |
JP9925177A JPS5432999A (en) | 1977-08-18 | 1977-08-18 | Structure of electro-chromic display unit |
JP11621177A JPS5449099A (en) | 1977-09-26 | 1977-09-26 | Electrochromic display unit and its driving method |
Publications (2)
Publication Number | Publication Date |
---|---|
CH624821B CH624821B (en) | |
CH624821GA3 true CH624821GA3 (en) | 1981-08-31 |
Family
ID=27302617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH709178A CH624821B (en) | 1977-06-29 | 1978-06-29 | ELECTROCHROME DISPLAY DEVICE WITH AN ADDITIONAL ELECTRODE AND A METHOD FOR REFRESHING THE DISPLAY STATE OF SUCH DISPLAY DEVICE. |
Country Status (3)
Country | Link |
---|---|
US (1) | US4229080A (en) |
CH (1) | CH624821B (en) |
DE (1) | DE2828185C2 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55159377U (en) * | 1979-04-28 | 1980-11-15 | ||
JPS569792A (en) * | 1979-07-04 | 1981-01-31 | Seiko Instr & Electronics | Electrochromic display device |
JPS5642213A (en) * | 1979-07-17 | 1981-04-20 | Seiko Instr & Electronics Ltd | Electrochromic display device |
JPS5657097A (en) * | 1979-10-15 | 1981-05-19 | Seiko Instr & Electronics | Method of driving electrochromic display unit |
JPS56100387A (en) * | 1980-01-14 | 1981-08-12 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS56140327A (en) * | 1980-04-02 | 1981-11-02 | Matsushita Electric Ind Co Ltd | Electrochromic display device |
JPS56168685A (en) * | 1980-05-30 | 1981-12-24 | Sharp Kk | Electrochromatic display unit |
JPS5714887A (en) * | 1980-06-30 | 1982-01-26 | Sharp Kk | Device for driving electrochromatic display unit |
US4773741A (en) * | 1987-04-09 | 1988-09-27 | Central Glass Company, Limited | Electrochromic display device having auxiliary electrode |
DE50211637D1 (en) * | 2001-11-30 | 2008-03-20 | Siemens Ag | ELECTROCHROMIC COLOR SYSTEM |
US8064120B2 (en) * | 2004-03-12 | 2011-11-22 | The Boeing Company | Aircraft cabin services system including zone controllers for lighting control modules and dimmable windows |
US7450294B2 (en) | 2004-03-12 | 2008-11-11 | Boeing Co | Multi-color electrochromic apparatus and methods |
US20050200934A1 (en) * | 2004-03-12 | 2005-09-15 | The Boeing Company | Dimming control system for an array of electrochromic devices |
WO2006052067A1 (en) * | 2004-11-11 | 2006-05-18 | Lg Chem, Ltd. | Electrochromic mirror or window displaying information |
US7355161B2 (en) | 2005-12-15 | 2008-04-08 | The Boeing Company | Systems and methods for controlling windows with variable light transmission |
EP1977284B1 (en) * | 2006-01-09 | 2016-03-16 | LG Chem, Ltd. | Electrode comprising lithium nickel oxide layer, method for preparing the same, and electrochromic device comprising the same |
US7893890B2 (en) * | 2007-03-05 | 2011-02-22 | The Boeing Company | Electrically dimmable combiner optics for head-up display |
TWI384310B (en) * | 2009-04-13 | 2013-02-01 | Univ Nat Cheng Kung | Photovoltachromic device and the application thereof |
JP5998519B2 (en) | 2011-05-31 | 2016-09-28 | 株式会社リコー | Display device and driving method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3840288A (en) * | 1973-07-30 | 1974-10-08 | Optel Corp | Electrochromic display having electro-catalyst |
US3840287A (en) * | 1973-07-30 | 1974-10-08 | Optel Corp | Symmetrical electrochromic cell |
JPS5810753B2 (en) * | 1975-09-29 | 1983-02-26 | シャープ株式会社 | Electrochromic Hiyoji Soshino Seizou Hohou |
GB1473772A (en) * | 1975-09-30 | 1977-05-18 | Ibm | Electrochromic display device |
GB1566031A (en) * | 1977-04-19 | 1980-04-30 | Ibm | Electrochromic display device |
JPS53130996A (en) * | 1977-04-20 | 1978-11-15 | Sharp Corp | Driving system for display unit |
DE2825390C2 (en) * | 1977-06-14 | 1983-01-05 | Sharp K.K., Osaka | Driver circuit for an electrochromic display device |
-
1978
- 1978-06-23 US US05/918,416 patent/US4229080A/en not_active Expired - Lifetime
- 1978-06-27 DE DE2828185A patent/DE2828185C2/en not_active Expired
- 1978-06-29 CH CH709178A patent/CH624821B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2828185A1 (en) | 1979-01-04 |
CH624821B (en) | |
US4229080A (en) | 1980-10-21 |
DE2828185C2 (en) | 1985-01-24 |
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