Method for manufacturing display device, display device, display module, and electronic device

A method for manufacturing a display device, comprising:

• forming a plurality of first pixel electrodes aligned in a first direction and a plurality of second pixel electrodes aligned in the first direction, the plurality of first pixel electrodes and the plurality of second pixel electrodes being aligned in a second direction;
• forming a first layer over the plurality of first pixel electrodes and the plurality of second pixel electrodes;
• forming a first sacrificial layer over the first layer;
• processing the first layer and the first sacrificial layer to expose at least part of each of the plurality of second pixel electrodes;
• forming a second layer over the plurality of first pixel electrodes and the plurality of second pixel electrodes;
• forming a second sacrificial layer over the second layer;
• processing the second layer and the second sacrificial layer to expose at least part of the first sacrificial layer;
• removing the first sacrificial layer and the second sacrificial layer;
• forming a third layer over the plurality of first pixel electrodes and the plurality of second pixel electrodes;
• forming a counter electrode over the third layer;
• processing the third layer and the counter electrode to remove at least part of each of the third layer and the counter electrode included in a region between the first pixel electrode and the second pixel electrode in a top view;
• forming a protective layer over the counter electrode;
• processing the protective layer to expose at least part of the counter electrode included in a region between the plurality of first pixel electrodes and a region between the plurality of second pixel electrodes in the top view;
• and
• forming a conductive layer over the counter electrode and the protective layer.

A display device comprising:

• a plurality of first light-emitting devices and a plurality of second light-emitting devices;
• a protective layer over the plurality of first light-emitting devices and the plurality of second light-emitting devices;
• and
• a conductive layer over the protective layer,
• wherein the first light-emitting devices each include a first pixel electrode, a first layer over the first pixel electrode, a third layer over the first layer, and a counter electrode over the third layer,
• wherein the second light-emitting devices each include a second pixel electrode, a second layer over the second pixel electrode, the third layer over the second layer, and the counter electrode over the third layer,
• wherein the first light-emitting devices and the second light-emitting devices are configured to emit light of different colors,
• wherein a region between the first pixel electrode and the second pixel electrode in a top view includes a first part where the third layer and the counter electrode are not provided,
• wherein the third layer and the counter electrode are shared by the plurality of first light-emitting devices,
• wherein the third layer and the counter electrode are shared by the plurality of second light-emitting devices,
• wherein a region between two first pixel electrodes and a region between two second pixel electrodes in the top view each include a second part where the protective layer is not provided, and
• wherein in the second part, the counter electrode and the conductive layer are electrically connected to each other.