US2005242721A1PendingUtilityA1

Large organic light-emitting diodes and methods of fabricating large organic light-emitting diodes

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Individually held — no corporate assignee on recordPriority: Dec 20, 2002Filed: Jul 5, 2005Published: Nov 3, 2005
Est. expiryDec 20, 2022(expired)· nominal 20-yr term from priority
Inventors:Donald Franklin FoustAnil Raj Duggal
H10K 59/8731H10K 59/871H10K 59/80516H10K 50/80H10K 50/841H10K 50/125H10K 2102/311H10K 50/814H10K 50/8445H10K 77/111H10K 50/805Y02E10/549Y02P70/50
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Claims

Abstract

Large, light-weight organic light emitting diode (OLED) devices and methods of preparing large, light-weight displays of organic light emitting diode (OLED) devices for area-lighting. Specifically, flexible and rigid light-weight plastics are implemented. The flexible plastic may be disposed from a reel. A metal grid is fabricated on the flexible plastic to provide current conduction over the large area. A transparent oxide layer is provided over the metal grid to form the bottom electrode of the OLED. A light emitting organic layer is disposed on the transparent oxide layer. A second electrode is disposed over the organic layer. Electrodes are coupled to the metal grid and the second electrode to provide electrical current to facilitate light emission from the organic layer.

Claims

exact text as granted — not AI-modified
1 . A system comprising: 
 a rigid plastic layer;    a hermetic coating layer disposed on the rigid plastic layer;    a flexible transparent film coupled to the hermetic coating layer;    a metal grid pattern formed on the flexible transparent film;    a transparent conductive oxide (TCO) layer disposed over the metal grid pattern and the transparent film;    an organic layer disposed over the transparent conductive oxide layer; and    a top electrode disposed over the organic layer.    
     
     
         2 . The system, as set forth in  claim 1 , wherein the flexible transparent film comprises a film disposed from a reel.  
     
     
         3 . The system, as set forth in  claim 1 , wherein the metal grid pattern comprises a plurality of electrically isolated metal squares.  
     
     
         4 . The system, as set forth in  claim 1 , wherein the transparent conductive layer comprises an indium-tin-oxide (ITO) layer.  
     
     
         5 . The system, as set forth in  claim 1 , comprising electrical leads coupled to each of the metal grid pattern and the top electrode.  
     
     
         6 . The system, as set forth in  claim 1 , comprising electrical leads coupled to some of the plurality of metal squares.  
     
     
         7 . The system, as set forth in  claim 1 , comprising a hermetic coating disposed over the top electrode.  
     
     
         8 . The system, as set forth in  claim 1 , wherein the top electrode comprises a reflective metal to reflect impinging light through the system.  
     
     
         9 . The system, as set forth in  claim 1 , wherein an adhesive is disposed between the flexible transparent film and the hermetic coating.  
     
     
         10 . The system, as set forth in  claim 1 , wherein a color changing layer is disposed between the flexible transparent film and the hermetic coating.  
     
     
         9 . The system, as set forth in  claim 1 , wherein the system comprises an area lighting system.  
     
     
         10 . The system, as set forth in  claim 1 , wherein the system comprises a photovoltaic system.  
     
     
         11 . A system comprising: 
 a transparent backer portion;    a transparent film coupled to the transparent backer portion;    a metal pattern formed on the flexible transparent film;    a transparent conductive layer disposed over the metal pattern and transparent film;    an organic layer disposed over the transparent conductive layer; and    a top electrode layer disposed over the organic layer.    
     
     
         12 . The system, as set forth in  claim 11 , wherein the transparent backer portion comprises a plastic layer, a hermetic coating disposed over the plastic layer, and an adhesive layer disposed over the hermetic coating.  
     
     
         13 . The system, as set forth in  claim 12 , wherein a color changing layer is disposed between the hermetic coating and the adhesive layer.  
     
     
         14 . The system as set forth in  claim 11 , wherein apertures extend through the transparent backer portion coincident with the metal pattern.  
     
     
         15 . The system, as set forth in  claim 11 , wherein the transparent film comprises a film disposed from a reel.  
     
     
         16 . The system, as set forth in  claim 11 , wherein the metal pattern comprises a plurality of electrically isolated metal squares.  
     
     
         17 . The system, as set forth in  claim 11 , wherein the transparent conductive layer comprises an indium-tin-oxide (ITO) layer.  
     
     
         18 . The system, as set forth in  claim 11 , wherein the top electrode layer comprises a reflective metal to reflect impinging light through the transparent portions of the system.  
     
     
         19 . The system, as set forth in  claim 11 , comprising a hermetic coating disposed over the top electrode layer.  
     
     
         20 . The system, as set forth in  claim 11 , comprising electrical leads coupled to each of the metal pattern and the top electrode layer.  
     
     
         21 . The system, as set forth in  claim 11 , wherein the system comprises an area lighting system.  
     
     
         22 . The system, as set forth in  claim 11 , wherein the system comprises a photovoltaic system.  
     
     
         23 . An area lighting system comprising: 
 a transparent backer portion having a plurality of apertures;    a transparent film coupled to the transparent backer portion and having a plurality of apertures coincident with the plurality of apertures of the transparent backer portion;    a metal pattern formed on the flexible transparent film;    a transparent conductive layer disposed over the metal pattern;    an organic layer disposed over the transparent conductive layer;    a metal layer disposed over the organic layer; and    electrical leads coupled to each of the metal pattern and the metal layer disposed over the organic layer.    
     
     
         24 . The area lighting system, as set forth in  claim 23 , wherein the transparent backer comprises a plastic layer, a hermetic coating over the plastic layer, and an adhesive layer over the hermetic coating.  
     
     
         25 . The system, as set forth in  claim 24 , wherein a color changing layer is disposed between the hermetic coating and the adhesive layer.  
     
     
         26 . The area lighting system, as set forth in  claim 23 , wherein the transparent film comprises a film disposed from a reel.  
     
     
         27 . The system, as set forth in  claim 23 , comprising a hermetic coating disposed over the metal layer disposed over the organic layer.  
     
     
         28 . The area lighting system, as set forth in  claim 23 , wherein the electrical leads coupled to the first electrode are disposed in the apertures extending through the transparent backer portion and the transparent film and coincident with the metal pattern formed on the flexible transparent film.  
     
     
         29 . The system, as set forth in  claim 23 , wherein the system comprises a photovoltaic system.

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