Organic EL panel and manufacturing method thereof
First Claim
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1. An organic EL panel in which organic EL elements are arranged in a matrix, each organic EL element having at least an organic emissive layer and a hole transport layer intervening between a pair of electrodes, wherein the hole transport layer has a thickness of more than 150 nm, preferably 170 nm or more.
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Abstract
A hole transport layer has a thickness of 170 nm or larger. This can prevent a hole transport layer from being broken down even when a cathode is partly in contact with the surface of the hole transport layer due to dust introduced during manufacturing of an organic emissive layer, and leads to suppression of defects.
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Citations
7 Claims
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1. An organic EL panel in which organic EL elements are arranged in a matrix, each organic EL element having at least an organic emissive layer and a hole transport layer intervening between a pair of electrodes,
wherein the hole transport layer has a thickness of more than 150 nm, preferably 170 nm or more.
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5. A method for manufacturing an organic EL panel in which organic EL elements are arranged in a matrix, each organic EL element having at least an organic emissive layer and a hole transport layer intervening between a pair of electrodes, comprising the steps of:
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forming an anode of the organic EL element;
forming a hole transport layer having a thickness of 170 nm or more so as to cover an entire surface of the organic elements arranged in a matrix; and
forming an organic emissive layer, using a mask, for every organic EL element segmented in the hole transport layer. - View Dependent Claims (6, 7)
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Specification