Composition, film manufacturing method, as well as functional device and manufacturing method therefore

A composition characterized in that said composition comprises an organic electroluminescent (EL) material and a solvent comprising at least one benzene derivative having 1 or more substituents, and these substituents having 3 or more carbon atoms in total,

• wherein said solvent, which comprises at least one benzene derivative, contains another solvent of boiling point 140° C. or higher.

A composition characterized in that said composition comprises an organic electroluminescent (EL) material and a solvent comprising at least one benzene derivative having 1 or more substituents, and these substituents having 3 or more carbon atoms in total,

• wherein said solvent, which comprises at least one benzene derivative, contains another solvent of boiling point 180° C. or higher.

A composition characterized in that said composition comprises an organic electroluminescent (EL) material and a solvent comprising at least one benzene derivative having 1 or more substituents, and these substituents having 3 or more carbon atoms in total,

• wherein a vapor pressure (at room temperature) of said benzene derivative is 0.10-10 mmHg, and
• said benzene derivative is 1,2,3,4-tetramethylbenzene.

A composition characterized in that said composition comprises an organic electroluminescent (EL) material and a solvent comprising at least one benzene derivative having 1 or more substituents, and these substituents having 3 or more carbon atoms in total,

• wherein a vapor pressure (at room temperature) of said benzene derivative is 0.10-10 mmHg, and
• said benzene derivative is a mixture of at least one benzene derivative of vapor pressure 0.10-0.50 mmHg, and at least one benzene derivative of vapor pressure 0.50-10 mmHg.

A composition characterized in that said composition comprises an organic electroluminescent (EL) material and a solvent comprising at least one benzene derivative having 1 or more substituents, and these substituents having 3 or more carbon atoms in total,

• wherein said organic EL material is at least one of fluorine derivative, and said fluorine derivative is a compound of compounds 1 through 4 herein below: