Display device, manufacturing method of display device, and exposure device

A display device comprising:

• a plurality of picture elements,
• wherein a first electrode is formed in each of the plurality of picture elements,
• a second electrode opposite to the first electrode,
• a light-emitting layer is formed between the first electrode and the second electrode,
• a cover layer is formed such that an opening of the first electrode is formed,
• a spacer is provided between two of the first electrodes, the spacer and the cover layer are formed of a same material through a same process,
• wherein a width of the spacer is from 8 μm to 12 μm,
• the spacer is formed with a height greater than a height of the cover layer, the spacer is provided in a display portion,
• wherein the height of the cover layer is from 1 μm to 3 μm,
• an outer edge portion of the spacer is spaced from an outer edge portion of the cover layer, and
• wherein the outer edge portion of the cover layer and the outer edge portion of the spacer are formed at an interval of 2 μm to 5 μm.