Abstract:
According to an embodiment of the disclosure, a display device is provided. The display device includes a substrate, and a light emitting element layer on the substrate and including an anode electrode portion, a cathode electrode portion, a light emitting structure electrically connected between the anode electrode portion and the cathode electrode portion, and a pixel defining layer. The light emitting structure includes a first light emitting structure included in a first sub-pixel and a second light emitting structure included in a second sub-pixel adjacent to the first sub-pixel. The pixel defining layer is between the first sub-pixel and the second sub-pixel and includes a separating structure between the first light emitting structure and the second light emitting structure. The cathode electrode portion includes a first cathode electrode including an opaque conductive material and a second cathode electrode including a transparent conductive material.
Abstract:
An organic light emitting diode display includes a substrate including a light transmitting area which is at a display area for displaying an image, and an emission area which is adjacent the light transmitting area, an organic light emitting diode on the substrate at a location corresponding to the emission area; and a light control unit on the substrate at a location corresponding to the light transmitting area and configured to control transmission of light.
Abstract:
An organic light emitting device includes an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer includes an emission layer, an electron transport layer, and an assistance layer interposed therebetween, and the assistance layer has a higher HOMO level than the electron transport layer by more than 0.3 eV. The accumulation of holes in the electron transport layer is decreased or prevented by the gap of the HOMO level between the assistance layer and the electron transport layer such that the lifetime of the organic light emitting device may be increased.