Display device, display module, and electronic device

A display device comprising:

• a first light-emitting device, a second light-emitting device, a first insulating layer, a second insulating layer, a first coloring layer and a second coloring layer,
• wherein the first light-emitting device comprises a first pixel electrode over the first insulating layer, a first layer over the first pixel electrode, and a common electrode over the first layer,
• wherein the second light-emitting device comprises a second pixel electrode over the first insulating layer, a second layer over the second pixel electrode, and the common electrode over the second layer,
• wherein the first insulating layer comprises a first groove and a second groove in a region between the first pixel electrode and the second pixel electrode in a top view,
• wherein the second insulating layer is over the first insulating layer,
• wherein the second insulating layer and each of a side surface of the first layer, a side surface of the second layer, the first groove and the second groove overlap each other,
• wherein the common electrode comprises a portion positioned over the second insulating layer,
• wherein the first coloring layer and the first light-emitting device overlap each other,
• wherein the second coloring layer and the second light-emitting device overlap each other,
• wherein the second coloring layer and the first coloring layer are configured to transmit light of different colors, and
• wherein the first layer and the second layer comprise the same light-emitting material, and
• wherein the first layer and the second layer are apart from each other.