Light-Emitting Device and Manufacturing Method Thereof

A light-emitting device comprising:

• an insulating layer;
• a first lower electrode over the insulating layer;
• a second lower electrode over the insulating layer;
• a partition over the insulating layer and between the first lower electrode and the second lower electrode;
• a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode;
• an intermediate layer over the first light-emitting unit;
• a second light-emitting unit over the intermediate layer;
• and
• an upper electrode over the second light-emitting unit,
• wherein the partition has a valley, a first mountain to the first lower electrode side of the valley, and a second mountain to the second lower electrode side of the valley,
• wherein a thickness of the intermediate layer over a first inclined surface between a top of the first mountain and the valley in a direction perpendicular to the first inclined surface is smaller than a thickness of the intermediate layer over the first lower electrode in a direction perpendicular to the first lower electrode, and
• wherein a thickness of the intermediate layer over a second inclined surface between a top of the second mountain and the valley in a direction perpendicular to the second inclined surface is smaller than the thickness of the intermediate layer over the first lower electrode in the direction perpendicular to the first lower electrode.

A method for manufacturing a light-emitting device, comprising the steps of:

• forming a first lower electrode and a second lower electrode over an insulating layer;
• forming a partition over the insulating layer and between the first lower electrode and the second lower electrode;
• fanning a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode;
• forming an intermediate layer over the first light-emitting unit;
• forming a second light-emitting unit over the intermediate layer;
• and
• forming an upper electrode over the second light-emitting unit,
• wherein the partition has a first depression.

A method for manufacturing a light-emitting device, comprising the steps of:

• forming an insulating layer over a first wiring and a second wiring;
• forming a first contact hole over the first wiring, a second contact hole over the second wiring, and a second depression, in the insulating layer by processing the insulating layer;
• forming a first lower electrode on one side of the second depression, in the first contact hole and over the insulating layer, and forming a second lower electrode on the other side of the second depression, in the second contact hole and over the insulating layer;
• forming a partition in the second depression and over the insulating layer;
• forming a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode;
• forming an intermediate layer over the first light-emitting unit;
• forming a second light-emitting unit over the intermediate layer;
• and
• forming an upper electrode over the second light-emitting unit,
• wherein the partition has a first depression over the second depression.

A method for manufacturing a light-emitting device, comprising the steps of:

• forming an insulating layer over a first wiring and a second wiring;
• forming a first contact hole over the first wiring, a second contact hole over the second wiring, and a groove, in the insulating layer by processing the insulating layer;
• forming a first lower electrode on one side of the groove, in the first contact hole and over the insulating layer, and forming a second lower electrode on the other side of the groove, in the second contact hole and over the insulating layer;
• forming a partition in the groove and over the insulating layer;
• forming a first light-emitting unit over the first lower electrode, the partition, and the second lower electrode;
• forming an intermediate layer over the first light-emitting unit;
• forming a second light-emitting unit over the intermediate layer;
• and
• forming an upper electrode over the second light-emitting unit,
• wherein the partition has a valley over a bottom of the groove, a first mountain to the first lower electrode side of the valley, and a second mountain to the second lower electrode side of the valley,
• wherein a thickness of the intermediate layer over a first inclined surface between a top of the first mountain and the valley in a direction perpendicular to the first inclined surface is smaller than a thickness of the intermediate layer over the first lower electrode in a direction perpendicular to the first lower electrode, and
• wherein a thickness of the intermediate layer over a second inclined surface between a top of the second mountain and the valley in a direction perpendicular to the second inclined surface is smaller than the thickness of the intermediate layer over the first lower electrode in the direction perpendicular to the first lower electrode.