EP1636641A1 - Elektrochrome passiv-matrix-anzeige mit diode in jedem pixel - Google Patents
Elektrochrome passiv-matrix-anzeige mit diode in jedem pixelInfo
- Publication number
- EP1636641A1 EP1636641A1 EP04741861A EP04741861A EP1636641A1 EP 1636641 A1 EP1636641 A1 EP 1636641A1 EP 04741861 A EP04741861 A EP 04741861A EP 04741861 A EP04741861 A EP 04741861A EP 1636641 A1 EP1636641 A1 EP 1636641A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrochromic
- layer
- passive matrix
- matrix display
- diode
- 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.)
- Ceased
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
- G02F1/1533—Constructional details structural features not otherwise provided for
-
- 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
- G02F1/1516—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 organic material
- G02F1/15165—Polymers
-
- 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
- G02F2001/164—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 the electrolyte is made of polymers
Definitions
- the present invention relates to a passive matrix display based on the electrochromic effect of organic layers, in particular organic polymers.
- the discoloration curves for electrochromic pixels show a different position if the absorption is plotted in relation to the control voltage.
- the electrochromic effect with a negative voltage and in the neutral state can already cause a slight discoloration, which increases when a positive voltage is applied.
- Systems are also possible that make a pixel appear colorless with negative voltage and the neutral state. Discoloration occurs when a positive voltage is applied. Still other electrochromic systems only lead to discoloration when a certain activation voltage exceeds a certain threshold value.
- the invention is based on the finding that crosstalk in a passive matrix display can be avoided if each individual layer structure within the arrangement has a nonlinearity in the voltage / absorption behavior which is associated with a specific value of an activation voltage, which is in the positive range.
- a diode characteristic can be introduced into an electrochromic cell with additional layers, with a threshold or activation voltage being considered. It is essential that an electrochromic layer is applied to an electrode in order to separate the power supply from the coloring layer. Overall, so-called primary current paths can thus be controlled in a targeted manner, secondary current paths which bring about crosstalk being avoided.
- a layer system which consists of organic materials, in particular of organic polymers.
- the materials are electrochromic.
- the aim is to operate two functions at the same time.
- the discoloration of a layer package is to be achieved via the electrochromic effect when an electrical voltage is applied.
- a diode or double diode behavior with one-sided or two-sided forward voltage should be achieved in the same element.
- the display When using a simple diode, the display is discolored or recolored after a certain waiting period. time about the diffusion of ions due to a chemical potential.
- the decolorization or decolorization is generated by applying a reverse voltage.
- a passive matrix display consists of a large number of pixels, each of which is made up of a layer package. Organic materials are used, with at least one layer exhibiting electrochromic behavior and a second layer serving as an electrolyte or ion conductor.
- the diode behavior can be effected in two ways.
- additional layers that exhibit diode behavior can be introduced into the layer package of an electrochromic cell.
- an electrochromic cell can be shown a voltage / absorption behavior which shows an activation voltage that is greater than zero.
- the characteristic of such an element intersects the voltage axis in the positive voltage range.
- FIG. 1 shows possible discoloration characteristics for electrochromic pixels
- FIG. 2 shows the top view of a passive matrix display with primary and secondary current paths
- FIG. 3 shows the current flow in the primary current path
- FIG. 4 shows the current flow in a secondary current path (crosstalk)
- FIG. 5 shows a diode characteristic
- FIG. 6 shows a double diode characteristic
- FIG. 7 shows a specific exemplary embodiment of an electrochromic pixel for a passive matrix display based on organic polymers.
- Figure 1 shows various discoloration characteristics a, b and c.
- the characteristic curve a indicates that a pixel is colorless when the voltage is negative and has a slight discoloration in the neutral state, which increases when a positive voltage is applied.
- the characteristic curve b shows that the pixel is colorless when the voltage is negative and in the neutral state. Discoloration occurs when a positive voltage is applied.
- the characteristic curve c is essential in the context of the invention, since the discoloration of the pixel only occurs when a certain threshold voltage or activation voltage is reached and is further intensified if the voltage continues to rise.
- FIG. 2 shows a section of a passive matrix display with primary and secondary current paths, the secondary current path not being desired.
- Individual elements of the passive matrix display can be controlled by switching between a pair of supply lines 1, 2, 3 or 4 on the one hand and on the other hand, a voltage is applied to the leads A, B, C or D.
- the primary current path when applying voltages between z. B. 2 and C is represented by the reinforced solid line.
- the undesired secondary current path is shown by a dashed line and also affects the control function 2-C.
- the actually desired discoloration of the pixel with the coordinates 2, C when a voltage is applied between the supply lines 2 and C can thus be impeded by crosstalk in that neighboring pixels also show a certain discoloration.
- FIGS. 3 and 4 show cross sections of current paths in the form of reinforced solid lines on matrix display systems.
- FIG. 3 shows the current flow in the primary current path, the pixel 2C being driven.
- the standard structure of the electrochromic cell has an electrolyte, a first electrochromic layer, a second electrochromic layer and an electrode on each side.
- FIG. 4 shows the current flow in a secondary current path, which can also discolor pixels 2B, 3B and 3C.
- FIGS 5 and 6 show the diode characteristics of single or double diodes, the voltage Vrj and V D ⁇ rj2 are the so-called threshold or activation voltages.
- FIG. 7 shows an exemplary embodiment of an electrochromic pixel with an integrated diode for a passive matrix display based on organic polymers.
- the substantial introduction of additional layers with diode behavior or the design of an electrochromic cell with a positive activation voltage in each case have the result that a discoloration characteristic curve c is present in Figure 1. If layers with diode behavior are additionally introduced, the curves a or b shift into the discoloration characteristic curve c.
- FIG. 7 shows a special exemplary embodiment of the invention in which the second electrochromic layer, for example consisting of PEDOT or PANI, serves both the electrochromic cell and the diode due to its double function behavior with the electrochromic effect and the electrical conductivity.
- the material PEDOT is in contact with the electrolyte 7, so that it can perform this double function.
- the second electrochromic layer 8 thus represents the common electrode for the electrochromic cell and the diode. Without such a double function layer, a common electrode and additionally an electrochromic layer of the electrochromic cell would be necessary.
- a particularly advantageous embodiment provides the mixing of the materials with an electrochromic layer and an electrolyte. In total, a single layer is produced from this mixture, which means a significant simplification in the production of a passive matrix display.
- the so-called diode behavior of a layer structure can be generated if, for example, two diodes are connected in reverse polarity in parallel. It is irrelevant whether the positive and negative forward voltages have the same absolute value. There is a double diode function. A discoloration or discoloration of the display happens when using a simple diode after a certain waiting time via the diffusion of ions. When using a double diode, the decolorization or recoloring is generated by applying a reverse voltage.
- the layer of electrolyte 7 can be made of PC-LiC104, for example.
- Layer is made, for example, from Pedot or Pani or the like.
- the electrochromic layers 6, 8 provide the corresponding color effect.
- the layer sequence must be set up depending on the function of individual layers, but there is a large number of variants. In principle, care must be taken that the incidence of light is not obstructed by the material of an electrode.
- layer structures according to the invention can be realized with a wide variety of transparent materials.
- the material of the semiconductor 9 can be P3HT, for example.
- An electrode is made of metal, ITO or PEDOT, for example.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10328377A DE10328377A1 (de) | 2003-06-24 | 2003-06-24 | Elektrochromes Anzeigesystem |
PCT/EP2004/051200 WO2004114008A1 (de) | 2003-06-24 | 2004-06-23 | Elektrochrome passiv-matrix-anzeige mit diode in jedem pixel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1636641A1 true EP1636641A1 (de) | 2006-03-22 |
Family
ID=33520891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04741861A Ceased EP1636641A1 (de) | 2003-06-24 | 2004-06-23 | Elektrochrome passiv-matrix-anzeige mit diode in jedem pixel |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1636641A1 (de) |
DE (1) | DE10328377A1 (de) |
WO (1) | WO2004114008A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023747A1 (de) | 2007-05-22 | 2008-11-27 | Siemens Ag | Organisches elektrochromes Bauelement für Daueranzeigen |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004066410A1 (en) | 2003-01-17 | 2004-08-05 | Diode Solutions, Inc. | Display employing organic material |
US20080186559A1 (en) * | 2005-02-09 | 2008-08-07 | Koninklijke Philips Electronics, N.V. | Display Device With Solid Redox Centres |
DE102006046020A1 (de) * | 2006-09-28 | 2008-04-03 | Siemens Ag | Vorrichtung mit zwei Elektroden und einer zwischen den Elektroden befindlichen elektrochromen Schicht, Verfahren zum Betreiben der Vorrichtung sowie Verwendung der Vorrichtung |
CN101627476B (zh) | 2006-11-07 | 2013-03-27 | 希百特股份有限公司 | 金属-绝缘体-金属(mim)装置及其制备方法 |
US7898042B2 (en) | 2006-11-07 | 2011-03-01 | Cbrite Inc. | Two-terminal switching devices and their methods of fabrication |
US9741901B2 (en) | 2006-11-07 | 2017-08-22 | Cbrite Inc. | Two-terminal electronic devices and their methods of fabrication |
EP2312386A1 (de) | 2009-10-05 | 2011-04-20 | Acreo AB | Passiv-Matrix elektrochromische Anzeigevorrichtung |
US9709867B2 (en) | 2010-10-05 | 2017-07-18 | Rise Acreo Ab | Display device |
CN103201676B (zh) | 2010-10-05 | 2016-11-16 | 阿克里奥瑞典信息和通信技术研究(Ict)公司 | 显示装置 |
EP2695020B1 (de) | 2011-04-05 | 2016-05-18 | Acreo Swedish ICT AB | Verfahren zur herstellung einer elektrochemisch aktiven vorrichtung beruhend auf der selbstausrichtung von elektrolyten auf elektroden |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4129861A (en) * | 1976-01-27 | 1978-12-12 | American Cyanamid Company | Multiplex addressing of electrochromic displays |
NL8103376A (nl) * | 1981-07-16 | 1983-02-16 | Philips Nv | Weergeefinrichting. |
US5780160A (en) * | 1994-10-26 | 1998-07-14 | Donnelly Corporation | Electrochromic devices with improved processability and methods of preparing the same |
DE19706918A1 (de) * | 1997-02-20 | 1998-08-27 | Flachglas Ag | Verfahren zum Betreiben eines elektrochromen Elementes |
DE19914093A1 (de) * | 1999-03-27 | 2000-10-19 | Dornier Gmbh | Elektrochromes Element |
CA2441172A1 (en) * | 2001-03-19 | 2002-09-26 | Dow Global Technologies Inc. | Matrix addressable electrochromic display device |
KR100424090B1 (ko) * | 2001-06-25 | 2004-03-22 | 삼성에스디아이 주식회사 | 유기 전계 발광 소자용 정공 수송층, 그 정공 수송층을사용한유기 전계 발광 소자 및 그 소자의 제조 방법 |
CA2451615A1 (en) * | 2001-06-25 | 2003-01-03 | University Of Washington | Electrochromic organic polymer synthesis and devices utilizing electrochromic organic polymers |
-
2003
- 2003-06-24 DE DE10328377A patent/DE10328377A1/de not_active Withdrawn
-
2004
- 2004-06-23 WO PCT/EP2004/051200 patent/WO2004114008A1/de active Application Filing
- 2004-06-23 EP EP04741861A patent/EP1636641A1/de not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2004114008A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023747A1 (de) | 2007-05-22 | 2008-11-27 | Siemens Ag | Organisches elektrochromes Bauelement für Daueranzeigen |
Also Published As
Publication number | Publication date |
---|---|
WO2004114008A1 (de) | 2004-12-29 |
DE10328377A1 (de) | 2005-01-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2433044C2 (de) | Steuerbare elektrochrome Anzeigevorrichtung mit nichtpolarisierbarer Elektrode | |
DE102018129783A1 (de) | Elektrolumineszierende Anzeigevorrichtung | |
DE102015017331B3 (de) | Anordnungssubstrat für Dünnschichttransistoren | |
DE10360454A1 (de) | Organische Elektrolumineszenz-Anzeigevorrichtung mit aktiver Matrix und Verfahren zu deren Herstellung | |
DE2848508C2 (de) | Flüssigkristall-Anzeigetafel | |
WO2011101427A1 (de) | Elektrochrome verglasung mit seriell verschalteten zellen, sowie herstellungsverfahren hierfür | |
EP1636641A1 (de) | Elektrochrome passiv-matrix-anzeige mit diode in jedem pixel | |
DE4025032A1 (de) | Elektrochrome vorrichtung | |
DE2253817A1 (de) | Gasentladungsanordnung fuer anzeigezwecke | |
EP2499671B1 (de) | Organische lichtemittierende vorrichtung mit homogener leuchtdichteverteilung | |
DE102014108954A1 (de) | TFT-Array-Substrat und Anzeigevorrichtung | |
DE2717776A1 (de) | Elektrochromes element | |
CH619552A5 (de) | ||
DE102015117817A1 (de) | Anordnungssubstrat und Flüssigkristall-Anzeigefeld | |
DE2707099A1 (de) | Elektrochrome anzeigevorrichtung | |
DE2459488A1 (de) | Fluessigkristall-verbundanzeigeschirm (-zelle) | |
DE102006055066A1 (de) | Dünnfilmtransistor und organische Elektrolumineszenz-Anzeigevorrichtung, die einen derartigen verwendet | |
DE2825390A1 (de) | Verfahren und schaltungsanordnung zum ansteuern einer elektrochromen anzeigezelle | |
EP2489080A2 (de) | Halbleiter-photodetektor und strahlungsdetektorsystem | |
DE4122055A1 (de) | Plasmaanzeigefeld | |
DE2203572B2 (de) | Gasentladungs-Anzeigefeld fur mehrfarbige Darstellungen | |
DE2723412A1 (de) | Konstantstrom-steuerschaltung fuer elektrochrome segment-anzeigeeinrichtungen | |
DE2124635A1 (de) | Verfahren zur Steuerung eines Bereiches hoher elektrischer Feldstarke in Halblei tem | |
DE3115894C2 (de) | Elektrochromes Schichtsystem | |
DE102018131756A1 (de) | Elektrolumineszente anzeigevorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20051205 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BRABEC, CHRISTOPH Inventor name: HAUCH, JENS |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20130621 |