Method of fabricating organic electroluminescent display panel

DETAILED DESCRIPTION Accordingly, the present invention is directed to a novel method of fabricating an organic electroluminescent display panel that substantially obviates the problems associated with related art methods.
An object of the present invention is to provide a method of fabricating an organic EL display panel, wherein pixelation can be performed without resorting to the use of a shadow mask and also without active EL elements being exposed to solvents from photoresist or developing and stripping solutions.
The present invention may be achieved in whole or in part by a method of fabricating an organic electroluminescent (EL) display panel, comprising the steps of: (1) providing an organic function layer, said organic function layer comprising at least one organic EL medium layer laminated between first and second electrodes; and (2) pixelizing the organic function layer with at least one laser beam.
The present invention may also be achieved in whole or in part by a method of fabricating an organic EL display panel, comprising the steps of: (1) forming, in succession, a first electrode layer, organic function layers, including at least one organic EL medium layer, and a second electrode layer on a transparent substrate; and (2) removing, selectively, said second electrode layer and organic function layers in a predefined region with at least one laser beam.
The present invention may also be achieved in whole or in part by a method of fabricating an organic EL display panel, comprising the steps of: (1) forming a first electrode layer and an insulating layer, in succession, on a transparent substrate; (2) removing said insulating layer in a predefined region with at least one laser beam; (3) forming organic function layers and a second electrode layer, in succession, on the predefined region, inclusive of the insulating layer; and (4) repeating steps (2) and (3) at least once.
The present invention may also be achieved in whole or in part by a method of fabricating an organic EL display panel, comprising the steps of: (1) forming a first electrode layer and an insulating layer, in succession, on a transparent substrate; (2) removing said insulating layer in a predefined region with at least one laser beam; (3) forming organic function layers, a second electrode layer and a protection layer, in succession, on the predefined region inclusive of the insulating layer; and (4) repeating the steps of (2) and (3) once or more