Disclosed are display device and preparation method therefor. Display device includes red light sub pixel, green light sub pixel, and first blue light sub pixel. Red light sub pixel includes anode, hole functional layer, red quantum dot light-emitting layer, transition layer, electron transport layer, and cathode arranged sequentially in layers. Green light sub pixel includes anode, hole functional layer, green quantum dot light-emitting layer, transition layer, electron transport layer, and cathode arranged sequentially in layers. First blue light sub pixel includes anode, hole functional layer, blue light organic light-emitting material layer, transition layer, electron transport layer, and cathode arranged sequentially in layers. Material of transition layer includes aromatic compound with conjugate plane, material of electron transport layer includes metal oxide. Ensuring same structure and technology of R, G, and B1 sub pixels, effectively solving problem of incompatibility between structure and technology during process of preparing existing QLED and OLED.

According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate by forming a lower electrode, forming a rib, and forming a partition including a lower portion and an upper portion, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode, and forming a second transparent layer on the first transparent layer. The first transparent layer and the second transparent layer are formed of organic materials different from each other. A refractive index of the second transparent layer is less than a refractive index of the first transparent layer.

Provided are a display panel and a method for manufacturing the same, and a display device. The display panel includes: a base substrate including a display area and a peripheral area; a separator located at the peripheral area and including at least one separation portion, each separation portion including a first and a second separation layer, and the orthographic projection of the first separation layer on the base substrate is within that of the second separation layer; a cathode including: a first cathode portion, and a second cathode apart from the first cathode portion; and an encapsulation layer including a first and a second inorganic layer, and an organic layer located between the first and the second inorganic layer, wherein edges of the orthographic projections of the first inorganic layer, the organic layer, and the second inorganic layer on the base substrate overlap.

The present disclosure provides a display device and a display panel. The display device includes an optical area included in a display area in which images can be displayed and allowing light to be transmitted, a normal area included in the display area and located outside of the optical area, a cathode electrode commonly disposed in the optical area and the normal area and including a plurality of cathode holes in the optical area, and a plurality of ring patterns respectively corresponding to the plurality of cathode holes. As each ring pattern is disposed to overlap an edge of each cathode hole, an optical electronic device located under the optical area is able to perform a high-performance operation. For example, when the optical electronic device is a camera, the display device enables the camera to acquire a high-quality image.

A display substrate, a display panel and a method of manufacturing a display substrate are provided. The display substrate includes: a substrate; a plurality of pixel units including at least a first pixel unit including a first light-emitting region and a first non-light-emitting region; a first light-emitting element arranged in the first light-emitting region, including a first electrode, a light-emitting layer and a second electrode; a scan driving circuit arranged in the first non-light-emitting region; and a first auxiliary electrode located in a first partial region in the first non-light-emitting region, wherein the scan driving circuit includes a plurality of scan driving sub-circuits located in a second partial region in the first non-light-emitting region; an orthographic projection of the first partial region on the substrate overlaps an orthographic projection of the second partial region on the substrate, and the first auxiliary electrode is electrically connected to the second electrode.

A display apparatus includes a first subpixel electrode, a metal bank layer having a first opening overlapping the first subpixel electrode, and including a first metal layer and a second metal layer on the first metal layer, a first intermediate layer overlapping the first subpixel electrode through the first opening of the metal bank layer, and a first opposite electrode on the first intermediate layer and positioned in the first opening of the metal bank layer, wherein the first opposite electrode includes an aluminum (Al)-based alloy including aluminum (Al) and at least two elements other than the aluminum (Al).

An organic light-emitting diode display panel and a manufacturing method therefor, and a display apparatus are provided. The orange light-emitting diode display panel comprises: a base substrate; an anode and an auxiliary electrode arranged on the base substrate, wherein the anode and the auxiliary electrode are insulated from each other, a pixel definition layer arranged on the anode and the auxiliary electrode, wherein the pixel definition layer has a pixel opening region exposing the anode and a via exposing the auxiliary electrode; and the luminescent layer and a cathode sequentially arranged on the pixel definition layer, wherein the cathode is electrically connected to the auxiliary electrode arranged in the via.

A display device has excellent luminous efficiency, the display device including: a display portion including pixels defined by a pixel defining layer; and a touch portion on the display portion. The touch portion includes: a first touch electrode overlapping the pixel defining layer; a first organic layer on the first touch electrode; a second touch electrode contacting the first touch electrode; a second organic layer on the second touch electrode; and a high refractive index layer on the first organic layer, the second touch electrode, and the second organic layer. The high refractive index layer is disposed between adjacent second touch electrodes in a plan view and includes a first convex surface protruding toward the display portion and overlapping one of the pixels.

The present disclosure relates to an organic light-emitting display device capable of preventing threshold voltage variation in a thin film transistor. In the organic light-emitting display device according to the present disclosure, an upper light-shielding layer overlying a pixel driving circuit which drives a light-emitting element is disposed on the same plane as an anode electrode and a bank is disposed to cover the sides of the upper light-shielding layer, and thus light input to the sides and the upper surface of an active layer can be blocked.

According to one embodiment, a display device includes a plurality of pixels and a bank provided between each adjacent pair of the plurality of pixels, and each of the plurality of pixels includes, on a base, a cathode, an organic EL layer provided on the cathode, a protective layer provided to cover a side surface of the organic EL layer, and an anode provided on the protective layer and in an aperture of the bank, so as to be in contact with the organic EL layer.