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US 9,865,816 B2Granted
Solution for forming function layer contained in organic light emitting element and method for manufacturing organic light emitting element
AssigneeJoled Inc.
InventorsMasakazu Takata, Hirotaka Nanno
Life of this patent
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Abstract
A solution contains a functional material for constituting a function layer, and a solvent. The solvent contains a high-boiling-point solvent composed of one or more solvent components having a boiling point of not less than 200° C. The high-boiling-point solvent has a viscosity of from 13 mPa·s to 25 mPa·s, inclusive, and a surface tension of from 33 mN/m to 37 mN/m, inclusive.
Claims16
A solution, comprising:
- a functional material that constitutes a function layer of an organic light emitting element;
- and
- a solvent that contains a high-boiling-point solvent, wherein the high-boiling-point solvent is composed of at least one first solvent component having a boiling point greater than or equal to 200° C., and wherein the high-boiling-point solvent has a viscosity in a range from 13 mPa·s to 25 mPa·s, and a surface tension in a range from 33 mN/m to 37 mN/m.
A method of manufacturing an organic light emitting element, the method comprising:
- forming a first electrode;
- applying a solution containing a functional material and a solvent to a side of the first electrode;
- drying the applied solution to form a function layer composed of the functional material over the first electrode;
- and
- forming a second electrode over the function layer,
- wherein the solvent contains a high-boiling-point solvent composed of at least one first solvent component having a boiling point greater than or equal to 200° C., and the high-boiling-point solvent has a viscosity in a range from 13 mPa·s to 25 mPa·s, and a surface tension in a range from 33 mN/m to 37 mN/m.
3 more elements
Dependencies are inferred from the claim text.