Electroluminescence display and manufacturing method of same, mask and manufacturing method of same
OwnerTsutomu Yamada, Ryuji Nishikawainventors
Life of this patent
Estimating the term…
Abstract
In an EL display having an EL element in which an emissive element layer is formed between an anode and a cathode, projections (pillars) (20) are formed on a base structure (10) in a region outside the emissive region, so that a hole transport layer, an emissive layer, and an electron transport layer can be formed through evaporation while the distance from the mask is maintained. Alternatively, the pillars (20) can be formed on the mask.
Claims10
An electroluminescence display comprising:
- an emissive element layer including an emissive layer and formed between a first electrode and a second electrode by placing, in contact with a base structure onto which said first electrode is formed, a mask having an opening for allowing an emissive material to be deposited onto a desired emissive region, and depositing said emissive material from an emissive material source through said opening, wherein,
- at least one of said base structure and said mask comprises projections for maintaining a predetermined distance between said base structure and said mask, and said projections being in contact with the non-emissive regions on said base structure.
A method for manufacturing an electroluminescence display wherein
- when an emissive layer is formed between a first electrode and a second electrode by placing, in contact with a base structure onto which said first electrode is formed, a mask having an opening for allowing an emissive material to be deposited onto a desired emissive region, and depositing the emissive material from an emissive material source through said opening,
- projections for maintaining a predetermined distance between said base structure and said mask are provided on a non-emissive region of said base structure, and the emissive material is deposited onto the desired emissive region on said base structure while the distance between said base structure and said mask is maintained.
A mask for placement between an emissive material source and a base structure which is the depositing target of the emissive material, said mask having:
- an opening for allowing said emissive material to be deposited onto a desired emissive region on said base structure, and projections for maintaining a predetermined distance from said base structure.
Dependencies are inferred from the claim text.