DE102010008679A1 - Display device e.g. electro-chromic display, for electronic watch, has organic FET connected with electrode of display under formation of polarity change circuitry, and another organic FET connected with another electrode of display - Google Patents

Display device e.g. electro-chromic display, for electronic watch, has organic FET connected with electrode of display under formation of polarity change circuitry, and another organic FET connected with another electrode of display

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Publication number
DE102010008679A1
DE102010008679A1 DE102010008679A DE102010008679A DE102010008679A1 DE 102010008679 A1 DE102010008679 A1 DE 102010008679A1 DE 102010008679 A DE102010008679 A DE 102010008679A DE 102010008679 A DE102010008679 A DE 102010008679A DE 102010008679 A1 DE102010008679 A1 DE 102010008679A1
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Germany
Prior art keywords
field effect
display
effect transistor
electrode
organic
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Ceased
Application number
DE102010008679A
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German (de)
Inventor
Jürgen 91056 Krumm
Klaus 91058 Ludwig
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.)
Polyic & Co Kg 90763 GmbH
PolyIC GmbH and Co KG
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PolyIC GmbH and Co KG
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Priority to DE102010008679A priority Critical patent/DE102010008679A1/en
Publication of DE102010008679A1 publication Critical patent/DE102010008679A1/en
Application status is Ceased legal-status Critical

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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/163Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/163Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
    • G02F2001/1635Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor the pixel comprises active switching elements, e.g. TFT

Abstract

The device has a drive circuit and a display provided with a layer of display material arranged between electrodes. The drive circuit is formed as a film body (80) that includes electrical function layers (81-85) under formation of organic electronic parts e.g. organic diodes. The drive circuit controls the display that includes two or more organic FETs e.g. P-type or N-type FETs, where one of the organic FETs is connected with an electrode of the display under the formation of a polarity change circuitry. The other organic FET is connected with another electrode of the display. The electrical function layers of the film body is formed as an electrically conductive, electrically or semi-conducting or electrically isolated function layer.

Description

  • The present invention relates to a display device with a drive circuit and a display.
  • From the US 4,148,015 A For example, a drive circuit for an electrochromic display device for an electronic watch is known. In a first embodiment, the drive signals are applied to section electrodes of the electrochromic display device by a plurality of source followers of first and second metal oxide semiconductor field effect transistors. The first and second transistors have source electrodes connected to each other and also to the section electrode for reducing the voltage applied across the section electrode and a common electrode for driving the display device at a lower voltage. Alternatively, in a second embodiment, the common electrode of the display device is coupled to high and low potentials of a battery by means of an inverter circuit composed of source follower transistors which act to reduce the electrical voltage applied across the section electrodes and the common electrode.
  • From the US 2004/0001056 A1 is a driver known. The driver provides an electrical voltage level and a polarity selection control via an electrochromic device to change the light transmission of the device. The driver has a fail-safe property relative to the electrochromic device if a microcontroller of the driver fails. The driver is sufficiently efficient so there is no need for a heat conduction plate. The driver can sense and measure electrical current and voltage in the electrochromic device.
  • The present invention has for its object to provide an improved display device with a drive circuit and a display.
  • The object of the invention is achieved by a display device having a drive circuit and a display with a layer arranged between a first electrode and a second electrode of a display material, wherein it is provided that the drive circuit is formed as a multilayer film body, wherein the film body a plurality of electrical functional layers comprising forming a plurality of organic electronic components, and that the drive circuit for driving the display comprises two or more organic field effect transistors, wherein a first field effect transistor of the two or more organic field effect transistors is connected to the first electrode of the display to form a polarity change circuit and a second field effect transistor two or more organic field effect transistors is connected to the second electrode of the display.
  • The invention makes it possible to drive a display, in particular an electrochromic display or an electrochromic pixel, by means of a drive, which is preferably designed as printed electronics. Normally display pixels are switched on by applying a voltage and deactivated by removing this voltage. In order to accelerate the switching process of a, preferably electrochromic, pixel, the polarity of the drive current through the pixel must be inverted. Preferred embodiments of the invention can advantageously be used in, preferably electrochromic, flashing circuits, since the switching speeds of the displays, which can be used by the polarity reversal, ie. H. Displays and / or display devices are possible. Also in other display technologies, such. As electrophoretic displays or cholesteric PDLC (PDLC = polymer-dispersed liquid crystals), the displays must be actively switched off by an inverted voltage. Again, these embodiments of the invention can be used.
  • In a preferred embodiment of the invention can be provided that with a single unipolar voltage source by cross-switching two current paths, the current direction in a, preferably electrochromic, display element can be reversed. Preferably, the display consists of a plurality of preferably electrochromic, display elements.
  • Advantageous developments of the invention are designated in the subclaims.
  • In a preferred embodiment of the invention it can be provided that at least one of the two or more organic field-effect transistors is designed as a P-type field-effect transistor (P-type = P-switching).
  • In a preferred embodiment of the invention it can be provided that at least one of the two or more organic field-effect transistors is formed as an N-type field-effect transistor (N-type = N-switching).
  • In a preferred embodiment of the invention it can be provided that each of the two or more organic field-effect transistors is designed as a P-type field effect transistor or as an N-type field effect transistor.
  • Preferably, the first field effect transistor and the second field effect transistor are connected in phase opposition. However, it can also be provided that only the potential at an electrode is changed in order to obtain a potential change.
  • In a preferred embodiment of the invention it can be provided that the drive circuit has at least two organic resistors, wherein a first resistor of the at least two organic resistors is connected to the first electrode and a second resistor of the at least two organic resistors is connected to the second electrode.
  • In a preferred embodiment of the invention it can be provided that the first resistor and the second resistor are connected to each other. It is further provided that either an electrical potential is applied to the first resistor and the second resistor or that the first resistor and the second resistor are connected to the ground.
  • In a preferred embodiment of the invention it can be provided that the drive circuit has at least four organic field-effect transistors for driving the display. It is further provided that, forming the polarity change circuit, a third field effect transistor of the at least four organic field effect transistors is connected to the first electrode of the display and a fourth field effect transistor of the at least four organic field effect transistors is connected to the second electrode of the display.
  • In a preferred embodiment of the invention it can be provided that the gate electrode of the first field effect transistor is connected to the gate electrode of the fourth field effect transistor. Furthermore, the gate electrode of the second field effect transistor is connected to the gate electrode of the third field effect transistor.
  • In a preferred embodiment of the invention it can be provided that the gate electrode of the first field effect transistor is connected to the gate electrode of the third field effect transistor. Furthermore, it is provided that the gate electrode of the second field effect transistor is connected to the gate electrode of the fourth field effect transistor.
  • In a preferred embodiment of the invention it can be provided that the gate electrode of the first field effect transistor is connected to the gate electrode of the second field effect transistor. It is further provided that either the source electrode of the first field effect transistor is connected to the source electrode of the second field effect transistor or that the drain electrode of the first field effect transistor is connected to the drain electrode of the second field effect transistor.
  • In a preferred embodiment of the invention it can be provided that the gate electrode of the first field effect transistor is connected to the first electrode of the display. Furthermore, it can additionally or alternatively be provided that the gate electrode of the second field effect transistor is connected to the second electrode of the display. The gate electrodes of the field effect transistors are connected to the source electrodes or the drain electrodes of the field effect transistors.
  • In a preferred embodiment of the invention, it may be provided that the display is designed as an electochrome display, as an electrophoretic display, or as a cholesteric LC display (LC = liquid crystal).
  • In a preferred embodiment of the invention can be provided that the display has an optically active layer which is deposited from a solution.
  • In a preferred embodiment of the invention can be provided that at least one of the plurality of electrical functional layers of the film body is formed as an electrically conductive, electrically semiconducting or electrically insulating functional layer.
  • The display material of the layer, the first electrode and / or the second electrode of the display preferably has an electrically conductive, electrically semiconductive, and / or electrically insulating material.
  • In one embodiment of the invention, it may preferably be provided that a substrate layer is formed from a flexible plastic film. On the substrate layer, the drive circuit may be applied.
  • In a preferred embodiment of the invention can be provided that the plurality of organic electronic components are formed as an organic diode, resistor and / or field effect transistor.
  • In a preferred embodiment of the invention can be provided that the two or more organic field effect transistors are connected to a flip-flop and / or latch.
  • Preferably, it can be provided that the display device has a flip-flop and / or a latch, each having a first output and respectively having a second output. The flip-flop can be designed as an edge-triggered flip-flop. It can be provided that the latch is designed as a state-controlled latch. Furthermore, it can be provided that the respective first output is connected to the first electrode of the display. The respective second output can be connected to the second electrode of the display.
  • In the following, the invention will be explained by way of example with reference to several embodiments with the aid of the accompanying drawings.
  • 1 shows a schematic sectional view of a display device according to the invention with a drive circuit and an electrochromic display.
  • 2 shows a schematic circuit diagram of a first display device according to the invention with a drive circuit and an electrochromic display.
  • 2a shows a schematic circuit diagram of a first modified variant of the first display device according to the invention with a drive circuit and an electrochromic display.
  • 2 B shows a schematic circuit diagram of a second modified variant of the first display device according to the invention with a drive circuit and an electrochromic display.
  • 3 shows a schematic circuit diagram of a second display device according to the invention with a drive circuit and an electrochromic display.
  • 4 shows a schematic circuit diagram of a third display device according to the invention with a drive circuit and an electrochromic display.
  • 4a shows a schematic circuit diagram of a modified variant of the third display device according to the invention with a drive circuit and an electrochromic display.
  • 1 shows a schematic sectional view of a drive circuit 1 . 1a . 1b . 2 . 3 . 3a a display device according to the invention with a drive circuit and an electrochromic display. The basic structure of the drive circuit 1 . 1a . 1b . 2 . 3 . 3a which in connection with the following 2 to 4a be described is the same. These drive circuits 1 . 1a . 1b . 2 . 3 . 3a are each as a multilayer organic film body 80 on a substrate layer 70 , ie a carrier substrate or a carrier foil applied. The film body 80 includes several electrical functional layers 81 . 82 . 83 . 84 . 85 under formation of several organic electronic components. At least one of the plurality of electrical functional layers 81 . 82 . 83 . 84 . 85 of the film body 80 is designed as an electrically conductive, electrically semiconductive or electrically insulating functional layer. The substrate layer 70 is made of a flexible plastic film. The plurality of organic electronic components may be formed as an organic diode, resistor and / or field effect transistor.
  • In the drive circuits 1 . 1a . 1b . 2 . 3 . 3a are organic-electronic circuits. The organic-electronic circuit according to a preferred embodiment has one or more organic electronic components, which differs fundamentally in the materials and manufacturing processes used from a silicon chip commonly used for integrated circuits. The organic-electronic circuit may have one or more electrically semiconducting and / or electrically insulating functional layers. Furthermore, one or more electrically insulating functional layers may be formed as a dielectric and / or ferroelectric layer of the organic-electronic circuit. The organic-electronic circuit is made of the layers of a multilayer film body 80 educated. These layers can be applied by printing, knife coating, vapor deposition or sputtering. The electrically conductive, semiconducting and / or insulating functional layers, as well as ferroelectric and / or dielectric layers of the organic-electronic circuit are in contrast to a silicon chip on a flexible carrier substrate, ie a carrier film, comprising one or more plastic films and / or paper a thickness of preferably 10 .mu.m to 100 .mu.m, constructed. This carrier film thus forms the carrier substrate of the integrated electronic-organic circuit instead of a silicon wafer in an integrated electronic circuit formed by a silicon chip. The electrically conductive, electrically semiconductive, and / or the electrically insulating functional layers, the dielectric and / or ferroelectric layers of this organic electronic circuit are preferably applied in a solution and can thus be applied for example by printing, spraying, knife coating and / or casting. The material of a layer applied in solution and / or functional layer is preferably insoluble in the material of another layer applied in solution and / or functional layer. The solution-applied layer and / or functional layer is preferably formed adjacent to the other solution-applied layer and / or functional layer.
  • As materials for electrically semiconducting functional layers in this case preferably semiconductive functional polymers such as polythiophene, polyterthiophene, polyfluorene, pentacene, tetracene, oligothiophene embedded in angoranic silicon in a polymer matrix, nano-silicon or polyarylamine come into question, but also inorganic materials which in solution or by Sputtering or vapor deposition can be applied, for example ZnO, a-Si.
  • An organic or organo-electronic component is understood here to mean an electrical component which consists predominantly of organic material, in particular of at least 90% by weight of organic material. A single organic component consists of different layers with an electrical function, in particular in the form of non-self-supporting, thin layers, and further at least from the areas of a carrier substrate, d. H. the carrier film, together, on which the layer layers are located. The individual layer layers can be formed from organic or inorganic material, it being possible to use only organic, only inorganic, or organic and inorganic layer layers in combination for forming an organic component. Thus, an electrical component comprising an organic support film and only inorganic layer layers with electrical function due to the usually large mass of the carrier substrate, d. H. the carrier film, compared to the mass of the functional layers considered as an organic component.
  • 2 shows a schematic circuit diagram of a first display device according to the invention 100 with a drive circuit 1 and an electrochromic display 40 in particular for actively driving an EC pixel 40 (EC = electrochromic). In the following, the invention is based on a single EC pixel 40 in the 2 to 4 described. An electrochromic display consists of at least one EC pixel, but it can also consist of a plurality of EC pixels. Thus, in the in the 2 to 4a shown exemplary embodiments of the invention, the EC pixel 40 with the EC display 40 are considered equivalent, and the wording EC pixel and EC display are used analogously to explain the inventive idea.
  • For this purpose, the in 2 shown circuit diagram three voltage sources 10 . 11 and 12 , two P-type field effect transistors 21 and 22 , two N-type field effect transistors 23 and 24 , and an EC pixel 40 on.
  • Normally display pixels are switched on by applying a voltage and deactivated by removing this voltage. To the switching process of an electrochromic pixel 40 To accelerate, the polarity of the drive current must 60 through the pixel 40 be inverted.
  • The in 2 shown circuit diagram of the drive circuit 1 , as well as in the following in connection with in the 2a . 2 B . 3 . 4 and 4a shown schematics of the drive circuits 1a . 1b . 2 . 3 , respectively 3b , can advantageously be used in electrochromic flashing circuits or in segmented displays, which must be switched quickly from one segment to another (eg seven-segment display), since the switchable polarity allows usable switching speeds of the display devices. The circuits 1a . 1b . 2 . 3 and 3a will be discussed in detail later in detail 2a . 2 B . 3 . 4 and 4a explained. In other display technologies, such as electrophoretic displays or cholesteric PDLC, the displays, ie display devices, must be actively switched off by an inverted voltage. Again, these circuits can 1 . 1a . 1b . 2 . 3 , and or 3a be used.
  • Here, a method is presented in which with a single unipolar voltage source by cross-switching two current paths, the current direction 60 in an electrochromic display element 40 can be turned around.
  • The in 2 shown circuit diagram has a polarity switching circuit with n- 23 . 24 and P-switching transistors 21 . 22 on. An EC pixel 40 is located between a first electrode 51 and a second electrode 52 , With the drawn current direction 60 for I pixels , this becomes the EC pixel 40 switched on. This requires the first electrode 51 a higher electric potential than the second electrode 52 exhibit. This is achieved by the transistors 21 and 24 turned on and the transistors 22 and 23 are locked. This will be a first tension 11 to 0 V and a second voltage 12 to an electrical potential of a supply voltage 10 set. To the EC-pixel 40 turn off, the current direction must be 60 for I pixels , are inverted. Accordingly, the transistors must 22 and 23 conduct. This is achieved by the first voltage 11 to the electrical potential of the supply voltage 10 and the second tension 12 set to 0V.
  • Thus, the in 2 shown display device 100 with a drive circuit 1 and an electrochromic display 40 a circuit diagram of a polarity switching circuit with N-switching transistors 23 and 24 and P-switching transistors 21 and 22 ready.
  • 2a shows a schematic circuit diagram of a first modified variant 100a the first display device according to the invention 100 with a drive circuit 1 and an electrochromic display 40 , Here corresponds to the first modified variant 100a with associated control circuit 1a essentially the first display device according to the invention 100 , It is provided that the gate electrode of the first field effect transistor 21 with the gate electrode of the second field effect transistor 22 connected is. It is further provided that either the source electrode of the first field effect transistor 21 with the source of the second field effect transistor 22 is connected or that the drain electrode of the first field effect transistor 21 with the drain electrode of the second field effect transistor 22 connected is. In this case, the gate electrodes of the field effect transistors 21 . 22 with the source electrodes or drain electrodes of the field effect transistors 21 . 22 connected.
  • 2 B shows a schematic circuit diagram of a second modified variant 100b the first display device according to the invention 100 with a drive circuit 1 and an electrochromic display 40 , Here corresponds to the second modified variant 100b with associated control circuit 1b essentially the first display device according to the invention 100 , It can be provided that the gate electrode of the first field effect transistor 21 with the first electrode of the electrochromic display 40 is connected and / or that the gate electrode of the second field effect transistor 22 with the second electrode of the electrochromic display 40 connected is. In 2 B However, it is shown that the gate electrode of the first field effect transistor 21 with the first electrode of the electrochromic display 40 is connected and that the gate electrode of the second field effect transistor 22 with the second electrode of the electrochromic display 40 connected is.
  • 3 shows a schematic circuit diagram of a second display device according to the invention 200 with a drive circuit 2 and an electrochromic display 40 ,
  • For this purpose, the in 3 shown circuit diagram three voltage sources 10 . 11 and 12 , four P-type field effect transistors 21 . 22 . 25 and 26 , and an EC pixel 40 on.
  • As with the first embodiment, with a single unipolar voltage source by cross-switching two current paths, the current direction 60 in an electrochromic display element 40 be turned around.
  • The in 3 shown circuit diagram has a polarity switching circuit with P-switching transistors 21 . 22 . 25 and 26 on. The operating principle of the second embodiment is similar to the "polarity switching circuit with N- and P-switching transistors", ie the first embodiment, except that instead of the N-type field effect transistors 23 and 24 of the first embodiment now P-type field effect transistors 25 and 26 are used and each transistors 21 and 26 and the transistors 22 and 25 be switched together.
  • Thus, the in 3 shown display device 200 with a drive circuit 2 and an electrochromic display 40 a circuit diagram of a polarity switching circuit with P-switching transistors 21 . 22 . 25 and 26 ready.
  • 4 shows a schematic circuit diagram of a third display device according to the invention 300 with a drive circuit 3 and an electrochromic display 40 ,
  • Also in this third embodiment can with a single unipolar voltage source by cross-switching two current paths, the current direction 60 in an electrochromic display element 40 be turned around.
  • For this purpose, the in 4 shown circuit diagram three voltage sources 10 . 11 and 12 , two P-type field effect transistors 21 and 22 , two resistances 31 and 32 , and an EC pixel 40 on.
  • The in 4 shown circuit diagram has a polarity switching circuit with P-switching transistors 21 . 22 and resistors 31 . 32 on. The operating principle of the third embodiment is similar to the "polarity switching circuit with N- and P-switching transistors", ie the first embodiment, only that instead of the N-type field effect transistors resistors 31 . 32 be used. Preferably, these resistors have an electrical resistance of 50 kΩ. It is envisaged that the first resistance 31 and the second resistance 32 connected to the ground.
  • The operating principle corresponds to the first embodiment, ie a unipolar polarity switching circuit with N- and P-switching field-effect transistors, wherein the transistors 23 and 24 of the first embodiment by resistors 31 respectively 32 have been replaced. Here now lies an improved, in particular increased, current efficiency compared to the P-type field effect transistors 23 and 24 of the first embodiment, ie over the first embodiment. Furthermore, the resistance values of the resistors 31 and 32 more flexible than the properties of P-switching and / or N-switching transistors.
  • Thus, the in 4 shown display device 300 with a drive circuit 3 and an electrochromic display 40 a circuit diagram of a polarity switching circuit with P-switching transistors 21 and 22 and resistors 31 and 32 ready.
  • 4a shows a schematic circuit diagram of a modified variant 300a the third display device according to the invention 300 with a drive circuit 3 and an electrochromic display 40 , Here corresponds to the modified variant 300a with associated control circuit 3a essentially the third display device according to the invention 300 , It is envisaged that the first resistance 31 and the second resistor are connected together. It is further provided that at the first resistor 31 and the second resistor 32 an electrical potential is applied.
  • As mentioned above, in the 2 to 4a shown display device 100 . 100a . 100b . 200 . 300 and 300a with drive circuits 1 . 1a . 1b . 2 . 3 , respectively. 3a and an electrochromic display 40 an advantageous acceleration of the switching process in EC displays or EC pixels 40 on.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • US 4148015 A [0002]
    • US 2004/0001056 A1 [0003]

Claims (16)

  1. Display device ( 100 . 200 . 300 ) with a drive circuit ( 1 . 2 . 3 ) and a display ( 40 ) with a layer of a display material arranged between a first electrode and a second electrode, it being provided that the drive circuit ( 1 . 2 . 3 ) as a multilayer film body ( 80 ), wherein the film body ( 80 ) several electrical functional layers ( 81 . 82 . 83 . 84 . 85 ) comprises forming a plurality of organic electronic components, and that the drive circuit ( 1 . 2 . 3 ) to control the display ( 40 ) two or more organic field effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ), wherein a first field effect transistor is formed while forming a polarity change circuit ( 21 ) of the two or more organic field effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) with the first electrode of the display ( 40 ) and a second field effect transistor ( 22 ) of the two or more organic field effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) with the second electrode of the display ( 40 ) connected is.
  2. Display device ( 100 . 200 . 300 ) according to claim 1, wherein it is provided that at least one of the two or more organic field-effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) is formed as a P-type field effect transistor.
  3. Display device ( 100 . 200 . 300 ) according to claim 1 or 2, wherein it is provided that at least one of the two or more organic field-effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) is formed as an N-type field effect transistor.
  4. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that each of the two or more organic field-effect transistors ( 21 . 22 . 25 . 26 ) as a P-type field effect transistor or as an N-type field effect transistor ( 23 . 24 ) is trained.
  5. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that the drive circuit ( 1 . 2 . 3 ) at least two organic resistors ( 31 . 32 ), wherein a first resistor ( 31 ) of the at least two organic resistors ( 31 . 32 ) is connected to the first electrode and a second resistor ( 32 ) of the at least two organic resistors ( 31 . 32 ) is connected to the second electrode.
  6. Display device ( 300 . 300a ) according to claim 5, wherein it is provided that the first resistor ( 31 ) and the second resistor ( 32 ) and that either at the first resistor ( 31 ) and the second resistor ( 32 ) an electrical potential is applied or that the first resistor ( 31 ) and the second resistor ( 32 ) are connected to the ground.
  7. Display device ( 100a . 100b . 200 ) according to one of the preceding claims, wherein it is provided that the drive circuit ( 1 . 2 . 3 ) to control the display ( 40 ) at least four organic field effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ), and that, forming the polarity switching circuit, a third field effect transistor ( 25 ) of the at least four organic field-effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) with the first electrode of the display ( 40 ) and a fourth field effect transistor ( 26 ) of the at least four organic field-effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) with the second electrode of the display ( 40 ) connected is.
  8. Display device ( 200 ) according to claim 7, wherein it is provided that the gate electrode of the first field effect transistor ( 21 ) with the gate electrode of the fourth field effect transistor ( 26 ), and that the gate electrode of the second field effect transistor ( 22 ) with the gate electrode of the third field effect transistor ( 25 ) connected is.
  9. Display device ( 100 ) according to one of claims 7 or 8, wherein it is provided that the gate electrode of the first field effect transistor ( 21 ) with the gate electrode of the third field effect transistor ( 23 ), and that the gate electrode of the second field effect transistor ( 22 ) with the gate electrode of the fourth field effect transistor ( 24 ) connected is.
  10. Display device ( 100a ) according to one of the preceding claims, wherein it is provided that the gate electrode of the first field effect transistor ( 21 ) with the gate electrode of the second field effect transistor ( 22 ) and that either the source electrode of the first field effect transistor ( 21 ) with the source electrode of the second field effect transistor ( 22 ) or that the drain electrode of the first field effect transistor ( 21 ) with the drain electrode of the second field effect transistor ( 22 ) connected is.
  11. Display device ( 100b ) according to one of the preceding claims, wherein it is provided that the gate electrode of the first field effect transistor ( 21 ) with the first electrode of the display ( 40 ) and / or that the gate electrode of the second field effect transistor ( 22 ) with the second electrode of the display ( 40 ), wherein the gate electrodes of the field effect transistors ( 21 . 22 ) with the source electrodes or the drain electrodes of the field effect transistors ( 21 . 22 ) are connected.
  12. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein is provided that the display ( 40 ) is designed as an electrochromic display, as an electrophoretic display or as a cholesteric LC display.
  13. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that the display ( 40 ) has an optically active layer which is deposited from a solution.
  14. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that at least one of the plurality of electrical functional layers ( 81 . 82 . 83 . 84 . 85 ) of the film body ( 80 ) is formed as an electrically conductive, electrically semiconductive or electrically insulating functional layer.
  15. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that the plurality of organic electronic components are formed as an organic diode, resistor and / or field effect transistor.
  16. Display device ( 100 . 200 . 300 ) according to one of the preceding claims, wherein it is provided that the two or more organic field-effect transistors ( 21 . 22 . 23 . 24 . 25 . 26 ) are connected to a flip-flop and / or latch.
DE102010008679A 2010-02-19 2010-02-19 Display device e.g. electro-chromic display, for electronic watch, has organic FET connected with electrode of display under formation of polarity change circuitry, and another organic FET connected with another electrode of display Ceased DE102010008679A1 (en)

Priority Applications (1)

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DE102010008679A DE102010008679A1 (en) 2010-02-19 2010-02-19 Display device e.g. electro-chromic display, for electronic watch, has organic FET connected with electrode of display under formation of polarity change circuitry, and another organic FET connected with another electrode of display

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148015A (en) 1975-10-24 1979-04-03 Citizen Watch Co., Ltd. Electronic timepiece with an electrochromic display
US20040001056A1 (en) 2002-06-28 2004-01-01 Honeywell International Inc. Electrochromic window driver
DE10330063A1 (en) * 2003-07-03 2005-02-03 Siemens Ag Organic layer structuring method for organic integrated circuit manufacture e.g. for manufacture of radio frequency identification tag, using structured anorganic layer as structuring mask
DE60203921T2 (en) * 2001-09-18 2006-02-16 Koninklijke Philips Electronics N.V. Electrophoretic display device with active matrix
DE102005015612A1 (en) * 2005-04-05 2006-10-12 Polyic Gmbh & Co. Kg Control on organic basis for electronic components
DE602005005451D1 (en) * 2005-04-21 2008-04-30 Samsung Sdi Germany Gmbh Active matrix circuit, active matrix display and their manufacturing process
US20090115581A1 (en) * 2004-12-29 2009-05-07 Avery Dennison Corporation Radio frequency identification device with visual indicator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148015A (en) 1975-10-24 1979-04-03 Citizen Watch Co., Ltd. Electronic timepiece with an electrochromic display
DE60203921T2 (en) * 2001-09-18 2006-02-16 Koninklijke Philips Electronics N.V. Electrophoretic display device with active matrix
US20040001056A1 (en) 2002-06-28 2004-01-01 Honeywell International Inc. Electrochromic window driver
DE10330063A1 (en) * 2003-07-03 2005-02-03 Siemens Ag Organic layer structuring method for organic integrated circuit manufacture e.g. for manufacture of radio frequency identification tag, using structured anorganic layer as structuring mask
US20090115581A1 (en) * 2004-12-29 2009-05-07 Avery Dennison Corporation Radio frequency identification device with visual indicator
DE102005015612A1 (en) * 2005-04-05 2006-10-12 Polyic Gmbh & Co. Kg Control on organic basis for electronic components
DE602005005451D1 (en) * 2005-04-21 2008-04-30 Samsung Sdi Germany Gmbh Active matrix circuit, active matrix display and their manufacturing process

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