Display device
According to one embodiment, a display device includes a substrate, a light-emitting element mounted on the substrate, an anode terminal disposed on an bottom portion of the light-emitting element and a cathode terminal disposed on an emitting surface of the light emitting element, on an opposite side to the anode terminal, and the cathode terminal is formed of a metal material.
1. A display device comprising:
a substrate;
a light-emitting element mounted on the substrate;
an anode terminal disposed on an bottom portion of the light-emitting element;
a cathode terminal disposed on an emitting surface of the light emitting element, on an opposite side to the anode terminal;
a transparent conductive layer; and
a cathode relay electrode, wherein
the cathode terminal is formed of a metal material,
the cathode terminal overlaps an end portion of the emitting surface without overlapping a central portion of the emitting surface,
the transparent conductive layer is disposed on the cathode terminal and the central portion of the emitting surface,
the cathode relay electrode is in contact with the cathode terminal directly.
2. The display device of claim 1 , further comprising:
a plurality of pixels each including the light emitting element, the anode terminal and the cathode terminal; and
a cathode wiring line provided in each of the plurality of pixels, for supplying a voltage applied to the cathode terminal.
3. The display device of claim 2 ,
wherein
the cathode terminal is electrically connected to the cathode wiring line via the cathode relay electrode, and
the cathode relay electrode is located in a same layer as that of the anode terminal.
4. The display device of claim 3 , further comprising:
an anode wiring line which supplying a voltage applied to the anode terminal; and
an anode relay electrode,
wherein
the anode terminal is electrically connected to the anode wiring line via the anode relay electrode, and
the anode relay electrode and the cathode relay electrode are located in a same layer without overlapping each other in planar view.
5. The display device of claim 3 , wherein
the cathode terminal extends along a first direction so as to connect the end portion of the emitting surface with an end portion of an emitting surface of an light-emitting element adjacent along the first direction parallel to a short side of the display device and to overlap a contact portion in contact with the cathode relay electrode in planar view.
6. The display device of claim 3 , wherein
the cathode terminal extends along a second direction so as to connect the end portion of the emitting surface with an end portion of an emitting surface of an light-emitting element adjacent along the second direction parallel to a long side of the display device and to overlap a contact portion in contact with the cathode relay electrode in planar view.
7. The display device of claim 3 , wherein
the pixel has a rectangular shape,
red, green, and blue light-emitting elements are arranged in a triangular fashion at positions corresponding to three of four vertices of the rectangular shape, and
a contact portion which electrically connects the cathode terminal and the cathode relay electrode is arranged at a position corresponding to one vertex different from the three vertices.