Abstract: A novel display apparatus that is highly convenient, useful, or reliable is provided. The display apparatus includes a first light-emitting device including a first electrode, a first layer, a first unit, and a second electrode and a second light-emitting device including a third electrode, a second layer, a second unit, and a fourth electrode. The first unit is between the first electrode and the second electrode and includes a first light-emitting material. The first layer is between the first unit and the first electrode and is in contact with the first electrode. The third electrode is adjacent to the first electrode. A first gap is between the third electrode and the first electrode. The second unit is between the third electrode and the fourth electrode and includes a second light-emitting material. The second layer is between the second unit and the third electrode and is in contact with the third electrode.

Abstract: A display device includes a backlight, a display element, a plate for holding at least a portion of an emission surface, from which an image light is emitted, provided on the display element, and a heat dissipation portion that dissipates heat generated from the display element. The display element is connected to the heat dissipation portion via the plate.

Abstract: A first contact part of a first terminal includes a linear part extending linearly in an insertion direction of an insertion protrusion, and a termination part of the linear part; and a first contact part of a second terminal includes a linear part extending linearly in an insertion direction of an insertion protrusion, and a termination part of the linear part; where, when an insertion protrusion is inserted into an insertion recess such that a first connector and a second connector achieve a completely mated state, the termination part of the linear part of the first contact part of the second terminal is positioned more in front of the insertion direction of the insertion protrusion than the termination part of the linear part of the first contact part of the first terminal.