Patent ID: 6514649
Filing Date: 2003-02-04
Classification: G03G,H01L,Y10S

Abstract:
A method of forming pixel light emitting layers and pixel electrodes in an organic EL panel wherein an organic light emitting material is laminated between a pair of opposing electrodes, at least one of which is transparent or semitransparent, said method comprising:a transparent substrate being prepared wherein a transparent or semitransparent common electrode is formed on at least one face thereof; a photosensitive thin film having a charge generating layer and charge transfer layer being formed on said common electrode; said photosensitive thin film being uniformly charged, and an electrostatic image being formed by exposure in a specified pattern; the unexposed portions or the exposed portions of said photosensitive thin film being developed using a powder developer, and a separation wall being formed from said charged powder developer; a laminate of a light emitting layer, an electron transporting layer, and a pixel electrode layer being uniformly deposited in that order; and after deposition, using the charge of said electrostatic latent image, said powder developer used in said separation wall being removed by transfer, and the laminate being selectively removed together therewith; selective removal of the laminate causing pattern formation of the pixel light emitting layer and separation of the pixel electrode layer to be performed simultaneously, and a pixel light emitting layer and pixel electrode to be formed in a specified pixel pattern.