Display device having an optical adjustment element switchable between light changing states

A display device comprising:

• a first electrode and a second electrode overlapping each other in a plan view;
• a light-emitting layer containing quantum dots and overlapping the first electrode and the second electrode in the plan view;
• a third electrode capable of forming an electrical field between the second electrode and the third electrode;
• and
• an optical adjustment element overlapping the light-emitting layer in the plan view and having light transmittance that changes in accordance with a potential difference between the second electrode and the third electrode,
• wherein, in a case that the potential difference exceeds a first voltage, the optical adjustment element switches from a light blocking state to a transient state, and
• in a case that the potential difference exceeds a second voltage, the optical adjustment element switches from the transient state to a light transmitting state.