Display device
AssigneeSharp Kabushiki Kaisha
InventorsTazuko Kitazawa, Yoshihiro Ueta, Eiji Satoh
Life of this patent
Estimating the term…
Abstract
A display device includes: a light-emitting element including a first electrode and a second electrode overlapping each other in a plan view, and a light-emitting layer placed between the first electrode and the second electrode; 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 a plan view and having light transmittance that changes in accordance with a potential difference between the second electrode and the third electrode.
Claims3
A display device comprising:
- a light-emitting element including a first electrode and a second electrode overlapping each other in a plan view, and a light-emitting layer placed between the first electrode and the second electrode;
- a third electrode capable of forming an electrical field between the second electrode and the third electrode;
- an optical adjustment element overlapping the light-emitting layer in the plan view and having light transmittance that changes based on a potential difference between the second electrode and the third electrode;
- a transparent body adjacent to the light-emitting layer in a planar direction;
- a fourth electrode capable of forming an electrical field between the third electrode and the fourth electrode;
- and
- an auxiliary element overlapping the transparent body in the plan view and having light transmittance switched based on a potential difference between the fourth 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 transmitting state to a transient state,
- in a case that the potential difference exceeds a second voltage, the optical adjustment element switches from the transient state to a light blocking state,
- during a non-light emission period of the light-emitting layer, the optical adjustment element is in the light transmitting state or the transient state, and
- during a light emission period of the light-emitting layer, the optical adjustment element is in the transient state or the light blocking state.
Dependencies are inferred from the claim text.