A top emitting quantum dot light emitting diode (QLED) apparatus for an emissive display apparatus sub-pixel, with at least one bank defining an emissive region of the emissive display apparatus sub-pixel, includes an emissive layer deposited in the emissive region between a first electrode and a second electrode. The first electrode includes a reflective metal, and the second electrode has a transparent conductive electrode and an auxiliary electrode. The bank has a sloped portion adjacent the emissive region. The auxiliary electrode includes a reflective conductive metal and is configured to cover the sloped portion, and the sloped portion is configured at an angle, such that the auxiliary electrode reflects internally reflected light out of the sub-pixel in a viewing direction, and the auxiliary electrode is configured with a partially light scattering surface to broaden a reflective angle range of the auxiliary electrode.

In some embodiments, the present disclosure relates to a method that includes forming an isolation structure over a reflector electrode and forming a protective layer over the isolation structure. Further, a first removal process is performed to form a first opening in the protective layer and the isolation structure to expose a first surface of the reflector electrode. A cleaning process is performed to clean the first surface of the reflector electrode. A conductive layer is formed over the protective layer and within the first opening. The conductive layer includes a different material than the protective layer. A second removal process is performed to remove peripheral portions of the protective layer and the conductive layer to form a via structure within the opening, extending through the isolation structure to contact the reflector electrode, and including the protective layer and the conductive layer.

A display device includes a substrate including a display area at which an image is displayed and a non-display area which is adjacent to the display area, and in the non-display area a common voltage transmitting line which is connected to the display area and through which a common voltage is provided to the display area, an organic insulating layer between the common voltage transmitting line and the substrate, a first opening which is in the common voltage transmitting line and exposes the organic insulating layer to outside the common voltage transmitting line and an auxiliary electrode which faces the organic insulating layer with the common voltage transmitting line therebetween, contacts the common voltage transmitting line at the first opening and covers the first opening.

Disclosed is an electroluminescence display having a structure in which the current leakage between neighboring pixels is prevented. The electroluminescence display comprises a first pixel defined for representing a first color on a substrate, a second pixel defined for representing a second color on the substrate, a first anode electrode disposed at the first pixel, a second anode electrode disposed at the second pixel, and a depletion electrode forming a depletion area between the first anode electrode and the second anode electrode.

Disclosed is an organic light-emitting diode display device. More particularly, an organic light-emitting diode display device including a multilayer dielectric film between a reflective metal and an anode is disclosed. The multilayer film includes alternating layers of dielectric materials having different refractive indices, thereby improving reflectivity, while preventing damage to the reflective metal in subsequent processing.

A display device includes a substrate including a display area and a non-display area; a first overcoating layer disposed on the substrate and including a base portion and a protruding portion protruding from the base portion; a first hydrogen blocking layer disposed on a top surface of the protruding portion in the display area; a first electrode covering the base portion and the first hydrogen blocking layer; a bank disposed on a part of the first electrode; an organic layer disposed on the first electrode and the bank; and a second electrode disposed on the organic layer.

A method of forming microelectronic systems on a flexible substrate includes depositing a plurality of layers on one side of the flexible substrate. Each of the plurality of layers is deposited from one of a plurality of sources. A vertical projection of a perimeter of each one of the plurality of sources does not intersect the flexible substrate. The flexible substrate is in motion during the depositing the plurality of layers via a roll to roll feed and retrieval system.

Disclosed are a display substrate, a preparation method thereof, and a display apparatus. The display substrate includes: a driving substrate, a first electrode, an auxiliary electrode, a pixel definition layer and a hole injection layer. The driving substrate includes a driving circuit and a dielectric layer covering the driving circuit; the first electrode and the auxiliary electrode are on a side of the dielectric layer of the driving substrate away from the driving circuit; the auxiliary electrode at least partially surrounds the first electrode; the pixel definition layer is on a side of the first electrode and the auxiliary electrode away from the driving substrate; the pixel definition layer includes a pixel opening, and the first electrode is at least partially exposed through the pixel opening and is electrically connected to the driving circuit; and the hole injection layer is in the pixel opening and stacked with the first electrode.

An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.

An organic light emitting display apparatus including a substrate including a plurality of pixel areas; a pixel electrode on the substrate; an opposite electrode on the pixel electrode, the opposite electrode transmitting light; an organic light emitting layer between the pixel electrode and the opposite electrode, the organic light emitting layer emitting a first light toward the opposite electrode; a light emitting layer on the opposite electrode, the light emitting layer absorbing a portion of the first light and emitting a second light; and a sealing layer on the light emitting layer, the sealing layer sealing the pixel electrode, the opposite electrode, the organic light emitting layer, and the light emitting layer.