Display device

A display device comprising:

• a first light-emitting device comprising a first lower electrode, a first light-emitting layer over the first lower electrode, a first layer over the first light-emitting layer, and a second light-emitting layer over the first layer;
• a second light-emitting device comprising a second lower electrode, a third light-emitting layer over the second lower electrode, a second layer over the third light-emitting layer, and a fourth light-emitting layer over the second layer;
• a common electrode included in the first light-emitting device and the second light-emitting device;
• and
• an auxiliary wiring electrically connected to the common electrode,
• wherein a color exhibited by a light-emitting material included in the first light-emitting layer is the same as a color exhibited by a light-emitting material included in the second light-emitting layer,
• wherein a color exhibited by a light-emitting material included in the third light-emitting layer is the same as a color exhibited by a light-emitting material included in the fourth light-emitting layer,
• wherein the first layer and the second layer each comprise lithium,
• wherein the auxiliary wiring comprises a first wiring layer and a second wiring layer,
• wherein the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer,
• wherein the first wiring layer has a lattice shape in a top view, and
• wherein each of the first lower electrode, the second lower electrode, and the second wiring layer comprises a region over the insulating layer.

A display device comprising:

• a first light-emitting device comprising a first lower electrode, a first light-emitting layer over the first lower electrode, a first layer over the first light-emitting layer, and a second light-emitting layer over the first layer;
• a second light-emitting device comprising a second lower electrode, a third light-emitting layer over the second lower electrode, a second layer over the third light-emitting layer, and a fourth light-emitting layer over the second layer;
• a common electrode included in the first light-emitting device and the second light-emitting device;
• and
• an auxiliary wiring electrically connected to the common electrode,
• wherein a color exhibited by a light-emitting material included in the first light-emitting layer is the same as a color exhibited by a light-emitting material included in the second light-emitting layer,
• wherein a color exhibited by a light-emitting material included in the third light-emitting layer is the same as a color exhibited by a light-emitting material included in the fourth light-emitting layer,
• wherein the first layer and the second layer each comprise lithium,
• wherein the auxiliary wiring comprises a first wiring layer and a second wiring layer,
• wherein the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer,
• wherein each of the first wiring layer and the second wiring layer has a lattice shape in a top view,
• wherein each of the first lower electrode, the second lower electrode, and the second wiring layer comprises a region over the insulating layer, and
• wherein a width of the second wiring layer is smaller than a width of the first wiring layer.

A display device comprising:

• a first light-emitting device comprising a first lower electrode, a first light-emitting layer over the first lower electrode, a first layer over the first light-emitting layer, and a second light-emitting layer over the first layer;
• a first color filter overlapping with the first light-emitting device;
• a second light-emitting device comprising a second lower electrode, a third light-emitting layer over the second lower electrode, a second layer over the third light-emitting layer, and a fourth light-emitting layer over the second layer;
• a second color filter overlapping with the second light-emitting device;
• a common electrode included in the first light-emitting device and the second light-emitting device;
• and
• an auxiliary wiring electrically connected to the common electrode,
• wherein a color exhibited by a light-emitting material included in the first light-emitting layer is the same as a color exhibited by a light-emitting material included in the second light-emitting layer,
• wherein a color exhibited by a light-emitting material included in the third light-emitting layer is the same as a color exhibited by a light-emitting material included in the fourth light-emitting layer,
• wherein the first layer and the second layer each comprise lithium,
• wherein the auxiliary wiring comprises a first wiring layer and a second wiring layer,
• wherein the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer, and
• wherein the first wiring layer has a lattice shape in a top view.

A display device comprising:

• a first light-emitting device comprising a first lower electrode, a first light-emitting layer over the first lower electrode, a first layer over the first light-emitting layer, and a second light-emitting layer over the first layer;
• a first color filter overlapping with the first light-emitting device;
• a second light-emitting device comprising a second lower electrode, a third light-emitting layer over the second lower electrode, a second layer over the third light-emitting layer, and a fourth light-emitting layer over the second layer;
• a second color filter overlapping with the second light-emitting device;
• a common electrode included in the first light-emitting device and the second light-emitting device;
• and
• an auxiliary wiring electrically connected to the common electrode,
• wherein a color exhibited by a light-emitting material included in the first light-emitting layer is the same as a color exhibited by a light-emitting material included in the second light-emitting layer,
• wherein a color exhibited by a light-emitting material included in the third light-emitting layer is the same as a color exhibited by a light-emitting material included in the fourth light-emitting layer,
• wherein the first layer and the second layer each comprise lithium,
• wherein the auxiliary wiring comprises a first wiring layer and a second wiring layer,
• wherein the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer,
• wherein the first wiring layer has a lattice shape in a top view, and
• wherein each of the first lower electrode, the second lower electrode, and the second wiring layer comprises a region over the insulating layer.

A display device comprising:

• a first light-emitting device comprising a first lower electrode, a first light-emitting layer over the first lower electrode, a first layer over the first light-emitting layer, and a second light-emitting layer over the first layer;
• a first color filter overlapping with the first light-emitting device;
• a second light-emitting device comprising a second lower electrode, a third light-emitting layer over the second lower electrode, a second layer over the third light-emitting layer, and a fourth light-emitting layer over the second layer;
• a second color filter overlapping with the second light-emitting device;
• a common electrode included in the first light-emitting device and the second light-emitting device;
• and
• an auxiliary wiring electrically connected to the common electrode,
• wherein a color exhibited by a light-emitting material included in the first light-emitting layer is the same as a color exhibited by a light-emitting material included in the second light-emitting layer,
• wherein a color exhibited by a light-emitting material included in the third light-emitting layer is the same as a color exhibited by a light-emitting material included in the fourth light-emitting layer,
• wherein the first layer and the second layer each comprise lithium,
• wherein the auxiliary wiring comprises a first wiring layer and a second wiring layer,
• wherein the second wiring layer is electrically connected to the first wiring layer through a contact hole of an insulating layer,
• wherein each of the first wiring layer and the second wiring layer has a lattice shape in a top view,
• wherein each of the first lower electrode, the second lower electrode, and the second wiring layer comprises a region over the insulating layer, and
• wherein a width of the second wiring layer is smaller than a width of the first wiring layer.