US2005025881A1PendingUtilityA1

Methods for forming light active devices

Priority: Nov 19, 2002Filed: Aug 28, 2004Published: Feb 3, 2005
Est. expiryNov 19, 2022(expired)· nominal 20-yr term from priority
Inventors:John J. Daniels
Y02E10/549Y10S428/917H01J 1/63H10K 59/8791H10K 59/874H10K 59/873H10K 50/11H10F 39/8063H10F 39/15H10K 59/32H10K 59/13H10K 71/13H10K 50/00H10K 71/12H10K 59/00H10K 50/80H01J 63/04H01J 1/62H05B 33/00Y02P70/50H10K 50/182
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Claims

Abstract

A method is provided for forming a light active device. A fluid carrier has light active particulate dispersed within it. A first electrode layer is provided and a layer of the fluid carrier dispersed with the light active particulate is laminated or coated on the first electrode layer. A second electrode layer is provided on top of the laminated layer of the fluid carrier dispersed with the light active particulate. The light active particulate may comprise field reactive light active particulate randomly dispersed within the fluid carrier. An aligning field is applied between the first electrode and the second electrode to form a desired alignment of the field reactive light active particulate within the fluid carrier between the first electrode and the second electrode. The carrier may comprise a hardenable material. The carrier can be hardened to form a hardened carrier for maintaining the desired alignment of the light active particulate within the hardened carrier. The light active particulate can be effective for receiving through the carrier electrical charges from the first electrode layer and the second electrode layer and generating photon emissions in response to receiving said electrical charges. The light active particulate can be effective for receiving a photon and separating electrical charges in response to the received photon, the separated electrical charges being transfer through the carrier to the first electrode layer and the second electrode.

Claims

exact text as granted — not AI-modified
1 ) A method for forming an organic light active device, comprising the steps of: providing a first electrode and a second electrode defining a gap there between; disposing within the gap organic light active particulate dispersed within a carrier.  
     
     
         2 ) A method for forming an organic light active device according to  claim 1;  wherein the organic light active particulate comprises field reactive organic light active particulate randomly dispersed within a fluid carrier; and further comprising the step of applying an aligning field between the first electrode and the second electrode to form a desired orientation of the field reactive organic light active particulate within the fluid carrier between the first electrode and the second electrode.  
     
     
         3 ) A method for forming an organic light active device according to  claim 2;  wherein the carrier comprises a hardenable material; and further comprising the steps of hardening the carrier to form a hardened carrier for maintaining the desired orientation of the organic light active particulate within the hardened carrier.  
     
     
         4 ) A method for forming an organic light active device according to  claim 1;  wherein the organic light active particulate is formed by the steps of providing a first particle comprised of a hole transport material having a net first electrical charge and providing a second particle comprised of an electron transport material having a net second electrical charge, the first electrical charge being opposite polarity from the second electrical charge; bringing the first particle and the second particle together to form a unified organic light active particulate having a hole transport layer and an electron transport layer forming a heterojunction between them.  
     
     
         5 ) A method for forming an organic light active device according to  claim 4;  wherein the first particle further includes at least one of an emissive or receptive photon-active layer.  
     
     
         6 ) A method for forming an organic light active device according to  claim 1;  wherein the organic light active particulate is formed by microencapsulating an internal phase within a shell, at least one of the internal phase and the shell including an organic light active material and at least one of the internal phase and the shell including a field reactive material comprising at least one of an electrostatic material and a magnetically reactive material.  
     
     
         7 ) A method for forming an organic light active device according to  claim 1;  wherein the organic light active particulate is formed by microencapsulating an internal phase within a shell, the internal phase comprising at least one of an organic light active emitter material and an organic light active hole transport material in a solution.  
     
     
         8 ) A method for forming an organic light active device according to  claim 7;  wherein at least one of the internal phase and the shell includes a field reactive component.  
     
     
         9 ) A method for forming an organic light active device according to  claim 1;  wherein at least one of the first electrode and the second electrode comprises an electrode grid for forming organic light active pixels between the first electrode and the second electrode.  
     
     
         10 ) A method for forming an organic light active device according to  claim 1;  wherein the organic light active particulate dispersed within the carrier is disposed within the gap through a nozzle.  
     
     
         11 ) A method for forming a light active device according to  claim 1;  wherein the organic light active particulate dispersed within the carrier is disposed within the gap through an inkjet nozzle.  
     
     
         12 ) A method for forming an organic light active device, comprising the steps of providing a fluid carrier; dispersing organic light active particulate within the fluid carrier; providing a first electrode layer; coating a layer of the fluid carrier dispersed with the organic light active particulate on the first electrode layer; and providing a second electrode layer on top of the coated layer of the fluid carrier dispersed with the organic light active particulate.  
     
     
         13 ) A method for forming an organic light active device according to  claim 12;  wherein the organic light active particulate comprises field reactive organic light active particulate randomly dispersed within the fluid carrier; and further comprising the step of applying an aligning field between the first electrode and the second electrode to form a desired alignment of the field reactive organic light active particulate within the fluid carrier between the first electrode and the second electrode.  
     
     
         14 ) A method for forming an organic light active device according to  claim 13;  wherein the carrier comprises a hardenable material; and further comprising the steps of hardening the carrier to form a hardened carrier for maintaining the desired alignment of the organic light active particulate within the hardened carrier.  
     
     
         15 ) A method for forming an organic light active device according to  claim 12;  wherein the first electrode layer comprises an x-electrode layer having x-electrode lines; the second electrode layer comprises a y-electrode layer having y-electrode line disposed adjacent to the x electrode layer and defining a gap therebetween so that pixel volumes are defined at intersections of respective x-electrode lines and y-electrode lines.  
     
     
         16 ) A method for forming an organic light active device according to  claim 12;  wherein the organic light active particulate is effective receiving through the carrier electrical charges from the first electrode layer and the second electrode layer and generating photon emissions in response to receiving said electrical charges.  
     
     
         17 ) A method for forming an organic light active device according to  claim 12;  wherein the organic light active particulate is effective for receiving a photon and separating electrical charges in response to the received photon, the separated electrical charges being transfer through the carrier to the first electrode layer and the second electrode.  
     
     
         18 ) A method for forming an organic light active device according to  claim 12;  wherein the organic light active particulate dispersed within the carrier is coated on the first electrode layer through a nozzle.  
     
     
         19 ) A method for forming a light active device according to  claim 12;  wherein the organic light active particulate dispersed within the carrier is coated on the first electrode layer through an inkjet nozzle.  
     
     
         20 ) A method for forming a light active device, comprising the steps of providing a fluid carrier; dispersing light active particulate within the fluid carrier; providing a first electrode layer; coating a layer of the fluid carrier dispersed with the light active particulate on the first electrode layer; and providing a second electrode layer on top of the coated layer of the fluid carrier dispersed with the light active particulate.  
     
     
         21 ) A method for forming a light active device according to  claim 20;  wherein the light active particulate comprises field reactive light active particulate randomly dispersed within the fluid carrier; and further comprising the step of applying an aligning field between the first electrode and the second electrode to form a desired alignment of the field reactive light active particulate within the fluid carrier between the first electrode and the second electrode.  
     
     
         22 ) A method for forming a light active device according to  claim 21;  wherein the carrier comprises a hardenable material; and further comprising the steps of hardening the carrier to form a hardened carrier for maintaining the desired alignment of the light active particulate within the hardened carrier.  
     
     
         23 ) A method for forming a light active device according to  claim 20;  wherein the first electrode layer comprises an x-electrode layer having x-electrode lines; the second electrode layer comprises a y-electrode layer having y-electrode line disposed adjacent to the x electrode layer and defining a gap therebetween so that pixel volumes are defined at intersections of respective x-electrode lines and y-electrode lines.  
     
     
         24 ) A method for forming a light active device according to  claim 20;  wherein the light active particulate is effective receiving through the carrier electrical charges from the first electrode layer and the second electrode layer and generating photon emissions in response to receiving said electrical charges.  
     
     
         25 ) A method for forming a light active device according to  claim 20;  wherein the light active particulate is effective for receiving a photon and separating electrical charges in response to the received photon, the separated electrical charges being transfer through the carrier to the first electrode layer and the second electrode.  
     
     
         26 ) A method for forming a light active device according to  claim 20;  wherein the carrier dispersed with the light active particulate is coated on the first electrode layer through a nozzle.  
     
     
         27 ) A method for forming a light active device according to  claim 20;  wherein the fluid carrier dispersed with the light active particulate is carrier is coated on the first electrode layer through an inkjet nozzle.

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