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US 6,656,519 B2Granted
Multicolor organic electroluminescent panel and process for production thereof
AssigneeNEC Corporation
InventorsYoshikazu Sakaguchi, Jyoji Suzuki
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Abstract
In a multicolor organic electroluminescent panel of the present invention, 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. This organic electroluminescent panel can prevent the concentration or nonuniformity of the electric field so that short-circuiting or current leakage does not take place.
Claims2
A method of making a multicolor organic electroluminescent panel comprising the steps of:
- forming an organic luminescent layer on a substrate, the organic luminescent layer having pixels that are arranged to emit light of different wavelengths;
- and
- forming an electron transport layer on the organic luminescent layer, the electron transport layer being formed of separate elements that are over the pixels, each of the separate elements having an edge that overlaps an edge of an adjacent one of the separate elements at a boundary between adjacent ones of the pixels of different wavelengths.
Dependencies are inferred from the claim text.