EP1609192A1 - Afficheur multifonction a capteurs - Google Patents

Afficheur multifonction a capteurs

Info

Publication number
EP1609192A1
EP1609192A1 EP04712005A EP04712005A EP1609192A1 EP 1609192 A1 EP1609192 A1 EP 1609192A1 EP 04712005 A EP04712005 A EP 04712005A EP 04712005 A EP04712005 A EP 04712005A EP 1609192 A1 EP1609192 A1 EP 1609192A1
Authority
EP
European Patent Office
Prior art keywords
display
photodetector array
display according
photodetector
active layer
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.)
Withdrawn
Application number
EP04712005A
Other languages
German (de)
English (en)
Inventor
Christoph Brabec
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1609192A1 publication Critical patent/EP1609192A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K65/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element and at least one organic radiation-sensitive element, e.g. organic opto-couplers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K39/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
    • H10K39/30—Devices controlled by radiation
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K39/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
    • H10K39/30—Devices controlled by radiation
    • H10K39/32—Organic image sensors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes

Definitions

  • the invention relates to a display and a device with a display.
  • the invention has for its object to provide a display that has added value compared to conventional displays.
  • the display has a large number of photodetectors in the form of a photodetector array.
  • the optoelectronically active material used in each case is preferably an organic material both in the display and in the photodetector array.
  • the display is advantageously an organic, polymer-based display and the photodetector array is preferably based on conjugated polymers. Accordingly, the display contains in particular one or more organic light-emitting diodes (OLEDs) and the photodetector array contains one or more organic photodetectors.
  • OLEDs organic light-emitting diodes
  • the photodetector array is preferably essentially transparent or semi-transparent. As a result, the photodetector array can be arranged in front of the display without covering it.
  • the photodetector array can also be integrated in the display.
  • use the pixels on the display and the photodetectors of the photodetector array each have the same optoelectronically active layer.
  • This optoelectronically active layer can then be operated with a forward voltage or a reverse voltage to choose between a mode in which the display emits light and a mode in which the photodetectors detect light.
  • the optoelectronically active layer is therefore operated either as a light-emitting layer or as a photoactive layer.
  • each pixel of the display and a photodetector of the photodetector array also have a common electrode, common intermediate layers and a common counter electrode.
  • the display has in particular 10 or more pixels that can be operated as photo detectors. In particular, all pixels of the display can be operated as photo detectors.
  • the optoelectronically active layer can in particular contain polythiophenes or consist of polythiophenes.
  • the display In a method for operating a display which has a photodetector array, the display is switched between a light-emitting mode and a photodetector mode.
  • Advantageous refinements of the method result analogously to the advantageous refinements of the device.
  • Figure 2 shows an integrated solution.
  • 1 shows a discrete solution that is created by externally connecting two independent components.
  • Organic photodetectors have the advantage that they can be made semi-transparent. This makes it possible to place a photodetector array 20 over a display 10, with only slight loss of light (filter effect) of the display.
  • this solution is technically relatively complex and requires the manufacture, connection and packaging of two individual components.
  • FIG. 2 shows an integrated solution in which a component has multiple functionality.
  • a pixel of an organic display typically consists of a layer structure in which the following layers are arranged next to one another: an electrode 1, one or more
  • An organic photodetector has the same structure, except that a photoactive layer is used as the optoelectronically active layer 3 instead of the emitting layer. The difference is that the photodetector is operated in reverse voltage, while the display (light emission) is operated in forward voltage.
  • a compromise in the choice of materials, i.e. polymers that have sufficient performance in both light-emitting and photodetector modes, allows a component to be produced that fulfills both the function of a display and the function of a photodetector array. By choosing the operating voltage, you can select the different functionality.
  • the class of polythiophenes may be mentioned as an example of polymers for which both functional variants, that is to say organic light-emitting diodes (OLEDs) or photodetectors, are possible.
  • the result is a polymer-based multifunction sensor display that emits light in normal OLED mode and detects light in photodetector mode.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

Afficheur organique qui possède en plus la fonctionnalité d'un groupe de photodétecteurs.
EP04712005A 2003-03-28 2004-02-18 Afficheur multifonction a capteurs Withdrawn EP1609192A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10314164 2003-03-28
DE10314164 2003-03-28
PCT/EP2004/001551 WO2004086527A1 (fr) 2003-03-28 2004-02-18 Afficheur multifonction a capteurs

Publications (1)

Publication Number Publication Date
EP1609192A1 true EP1609192A1 (fr) 2005-12-28

Family

ID=33038799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04712005A Withdrawn EP1609192A1 (fr) 2003-03-28 2004-02-18 Afficheur multifonction a capteurs

Country Status (2)

Country Link
EP (1) EP1609192A1 (fr)
WO (1) WO2004086527A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2538030C2 (ru) 2009-04-22 2015-01-10 Конинклейке Филипс Электроникс Н.В. Измерительная система визуализации с печатной матрицей органических фотодиодов
WO2013164015A1 (fr) * 2012-04-30 2013-11-07 Barco N.V. Système de capteur semi-transparent intégré dans un dispositif d'affichage et son utilisation
US10115000B2 (en) 2015-12-11 2018-10-30 Synaptics Incorporated Method and system for optical imaging using patterned illumination

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550095A (en) * 1967-05-02 1970-12-22 Matsushita Electric Ind Co Ltd Luminescent memory and display device
JPH0922778A (ja) * 1995-07-04 1997-01-21 Matsushita Electric Ind Co Ltd 有機発光受光素子及びこれを用いた有機発光受光装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004086527A1 *

Also Published As

Publication number Publication date
WO2004086527A1 (fr) 2004-10-07

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Inventor name: BRABEC, CHRISTOPH-C/O KONARKA TECHNOLOGIES AUSTRIA

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