Multicolor organic electroluminescent panel and process for production thereof

DETAILED DESCRIPTION The present invention has been completed in order to solve the above-mentioned problems of the prior art.
The present invention is intended to provide a multicolor organic electroluminescent panel which can prevent appearance of electric field concentration and electric field nonuniformity and which gives rise to neither short-circuiting nor current leakage therein and incurs neither nonuniform deterioration of luminance nor generation of dark spots therein, and a process for producing the electroluminescent panel.
The present invention is directed to a multicolor organic electroluminescent panel having, between two kinds of electrodes facing each other wherein at least one kind is transparent or translucent, organic luminescent layers each capable of emitting a light of different wavelength corresponding to predetermined colors and an electron transport layer(s), wherein: the organic luminescent layers are separated from each other between each adjacent pixels of different colors and the electron transport layer(s) has no gap between each adjacent pixels and is filled in each gap present between the organic luminescent layers.
The present invention is also directed to a multicolor organic electroluminescent panel having, between two kinds of electrodes facing each other wherein at least one kind is transparent or translucent, organic luminescent layers each capable of emitting a light of different wavelength corresponding to predetermined colors and electron transport layer(s), wherein: at least either of the organic luminescent layers and the electron transport layers overlap with each other at the boundary of each adjacent pixels of different colors.
The present invention is also directed to a process for producing a multicolor organic electroluminescent panel which comprises a step of forming, on a transparent substrate, organic luminescent layers each capable of emitting a light of different wavelength corresponding to predetermined colors and a step of forming an electron transport layer(s) on the organic luminescent layers, wherein: the organic luminescent layers are formed so as to be separated from each other between each adjacent pixels of different colors and the electron transport layer(s) is formed so as to have no gap between each adjacent pixels and be filled in each gap present between the organic luminescent layers