Inkjet printhead and apparatus and method for manufacturing organic luminescence display using the inkjet printhead

Abstract

An inkjet printhead, and an apparatus and method for manufacturing an organic luminescence display using the inkjet printhead. An apparatus for manufacturing an organic luminescence display including an inkjet printhead placeable over a substrate and including a plurality of nozzles; and a moving unit configured to move at least one of the inkjet printhead or the substrate relative to the other, and the plurality of nozzles includes one or more ink ejecting nozzles ejecting an organic light-emitting ink; and one or more solvent ejecting nozzles ejecting a first solvent.

What is claimed is: 
     
         1 . An apparatus for manufacturing an organic luminescence display, the apparatus comprising:
 an inkjet printhead placeable over a substrate and comprising a plurality of nozzles; and   a moving unit configured to move at least one of the inkjet printhead or the substrate relative to the other,   wherein the plurality of nozzles comprises:
 one or more ink ejecting nozzles ejecting an organic light-emitting ink; and 
 one or more solvent ejecting nozzles ejecting a first solvent. 
   
     
     
         2 . The apparatus of  claim 1 , wherein the nozzles are arranged in a row in a first direction parallel to a surface of the substrate, and the at least one of the inkjet printhead or the substrate moves in a second direction perpendicular to the first direction and parallel to the surface of the substrate. 
     
     
         3 . The apparatus of  claim 2 , wherein the one or more solvent ejecting nozzles are located at one or more ends of the plurality of nozzles. 
     
     
         4 . The apparatus of  claim 3 , wherein the one or more solvent ejecting nozzles comprise solvent ejecting nozzles located at both ends of the plurality of nozzles. 
     
     
         5 . The apparatus of  claim 2 , wherein the one or more ink ejecting nozzles and the one or more solvent ejecting nozzle are arranged alternately. 
     
     
         6 . The apparatus of  claim 1 , wherein the organic light-emitting ink comprises an organic light-emitting material, and a second solvent having a same composition as the first solvent. 
     
     
         7 . The apparatus of  claim 1 , wherein the substrate includes a display region to display images, and a non-display region to not display images, and the one or more solvent ejecting nozzles eject the first solvent onto at least a part of the non-display region. 
     
     
         8 . The apparatus of  claim 7 , wherein the non-display region includes one or more dummy patterns located around the display region, and the one or more solvent ejecting nozzles eject the first solvent onto the one or more dummy patterns. 
     
     
         9 . The apparatus of  claim 7 , wherein the one or more ink ejecting nozzles eject the organic light-emitting ink onto at least a part of the non-display region adjacent to the display region. 
     
     
         10 . An inkjet printhead comprising:
 a plurality of nozzles arranged in a row in a direction; and   a head holder supporting the nozzles,   wherein the plurality of nozzles comprises:
 one or more solvent ejecting nozzles ejecting a first solvent; and 
 one or more ink ejecting nozzles ejecting an organic light-emitting ink comprising an organic light-emitting material and a second solvent having a same composition as the first solvent. 
   
     
     
         11 . The inkjet printhead of  claim 10 , wherein the one or more solvent ejecting nozzles comprise solvent ejecting nozzles located at both ends of the plurality of nozzles. 
     
     
         12 . The inkjet printhead of  claim 10 , wherein the one or more ink ejecting nozzles and the one or more solvent ejecting nozzles are arranged alternately.