Selective OLED vapor deposition using electric charges
First Claim
Patent Images
1. A method comprising:
- applying a first electric charge having a magnitude of at least 5V to at least a portion of a first mixture, the first mixture comprising a first organic emissive material and a first carrier gas;
applying a second electric charge having a magnitude of at least 5V to a first portion of a substrate, the second electrical charge being of opposite sign to the first electric charge; and
directing the first organic emissive material toward the substrate.
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Abstract
A selective organic emissive material deposition technique is disclosed. A charged organic emissive material may be mixed with a carrier gas and ejected towards a charged intended area of a substrate. The charge for the emissive material may be such that the organic emissive material is attracted to the charged intended area of the substrate and, accordingly, deposited selectively over the charged intended area of the substrate. Additionally, surrounding unintended areas of the substrate may be charged such that the charged organic emissive material is repelled by the unintended areas.
20 Citations
18 Claims
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1. A method comprising:
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applying a first electric charge having a magnitude of at least 5V to at least a portion of a first mixture, the first mixture comprising a first organic emissive material and a first carrier gas; applying a second electric charge having a magnitude of at least 5V to a first portion of a substrate, the second electrical charge being of opposite sign to the first electric charge; and directing the first organic emissive material toward the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A method comprising:
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applying a first electric charge having a magnitude of at least 5V to a carrier gas; subsequent to applying the first electric charge, introducing an organic emissive material to the carrier gas; applying a second electric charge having a magnitude of at least 5V to a first portion of a substrate, the second electric charge being of opposite sign to the first electric charge; and directing the carrier gas and the organic emissive material toward the substrate.
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16. A method comprising:
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applying a first electric charge to at least a portion of a first mixture, the first mixture comprising a first organic emissive material and a first carrier gas; applying a second electric charge of the same sign as the first electric charge to at least a portion of a second mixture, the second mixture comprising a second organic emissive material and a second carrier gas; applying a third electric charge to a first portion of a substrate, the third electrical charge being of opposite sign to the first electric charge; directing the first organic emissive material from a first nozzle toward the substrate; and directing the second organic emissive material from a second nozzle toward the substrate. - View Dependent Claims (17, 18)
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Specification