Ink composition for light-emitting device and light-emitting device manufactured by using the same
AssigneeSamsung Display Co., Ltd.
InventorsSangyeop Lee, Jongwoo Shin, Dukki Kim, Sehun Kim, Wonjun Park, Jaekook Ha
Life of this patent
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Abstract
An ink composition for a light-emitting device, the ink composition including: a metal oxide; and a mixed solvent composition including a first solvent, a second solvent, and a third solvent, wherein the first solvent includes one hydroxyl group and has a boiling point of 160° C. to 270° C., the second solvent includes one hydroxyl group and has a boiling point of 270° C. to 350° C., and the third solvent includes two or more hydroxyl groups and has a boiling point of 270° C. to 350° C.
Claims20
An ink composition for a light-emitting device, the ink composition comprising:
- a metal oxide;
- and a mixed solvent composition comprising a first solvent, a second solvent, and a third solvent,
- wherein the first solvent comprises one hydroxyl group and has a boiling point of 160° C. to 270° C.,
- the second solvent comprises one hydroxyl group and has a boiling point of 270° C. to 350° C., and
- the third solvent comprises two or more hydroxyl groups and has a boiling point of 270° C. to 350° C.
A light-emitting device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- an interlayer between the first electrode and the second electrode, the interlayer comprising an emission layer,
- wherein a layer of the interlayer is prepared by using an ink composition for a light-emitting device, the ink composition comprising:
- a metal oxide;
- and a mixed solvent composition comprising a first solvent, a second solvent, and a third solvent,
- wherein the first solvent comprises one hydroxyl group and has a boiling point of 160° C. to 270° C.,
- the second solvent comprises one hydroxyl group and has a boiling point of 270° C. to 350° C., and
- the third solvent comprises two hydroxyl groups and has a boiling point of 270° C. to 350° C.
Dependencies are inferred from the claim text.