Organic electroluminescent display panel with projecting ramparts and method for manufacturing the same
First Claim
1. An organic electroluminescent display panel having a plurality of emitting portions arranged as a matrix comprising:
- a substrate on which a plurality of first display electrodes corresponding to emitting portions are formed;
electrical insulation ramparts formed on said substrate so as to project higher than a level of said first display electrodes from said substrate between said first display electrodes;
organic function layers each including at least one organic electroluminescent medium formed on said first display electrodes between said ramparts; and
at least one second display electrode formed on said ramparts and said organic function layers.
1 Assignment
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Accused Products
Abstract
A method for manufacturing an organic EL display panel having a plurality of emitting portions surrounded by ramparts and arranged as a matrix. The method includes the steps of forming a plurality of first display electrodes corresponding to emitting portions on a substrate; forming, on the substrate around the first display electrodes, electrical insulation ramparts surrounding the first display electrodes respectively; putting a shadow mask onto top surfaces of the ramparts, the shadow mask having a plurality of openings each exposing the first display electrode in the rampart, and aligning the openings to the first display electrodes respectively; depositing organic electroluminescent media through the openings onto the first display electrodes in the ramparts respectively, thereby forming organic function layers each including at least one organic electroluminescent medium on the first display electrodes in the ramparts; and forming a second display electrode formed all over or in stripe on the ramparts and the organic function layers. In the method, the mask putting and aligning step and the media depositing step are repeated in such a manner of that the shadow mask is shifted to an adjacent portion, whereby the openings are aligned to adjacent other first display electrodes, thereby enabling a highly efficient manufacturing method.
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Citations
15 Claims
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1. An organic electroluminescent display panel having a plurality of emitting portions arranged as a matrix comprising:
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a substrate on which a plurality of first display electrodes corresponding to emitting portions are formed; electrical insulation ramparts formed on said substrate so as to project higher than a level of said first display electrodes from said substrate between said first display electrodes; organic function layers each including at least one organic electroluminescent medium formed on said first display electrodes between said ramparts; and at least one second display electrode formed on said ramparts and said organic function layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for manufacturing an organic electroluminescent display panel having a plurality of emitting portions arranged as a matrix, comprising the steps of;
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forming a plurality of first display electrodes corresponding to emitting portions on a substrate; forming, on said substrate around said first display electrodes, electrical insulation ramparts so as to project higher than a level of said first display electrodes from said substrate between said first display electrodes; putting a shadow mask onto top surfaces of said ramparts, the shadow mask having a plurality of openings each exposing one of said first display electrodes between said ramparts, and aligning the openings to said first display electrodes respectively; depositing organic electroluminescent media through said openings onto said first display electrodes between said ramparts respectively, thereby forming organic function layers each including at least one organic electroluminescent medium on said first display electrodes between said ramparts; and forming at least one second display electrode on said ramparts and said organic function layers. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification