The present application discloses a display panel and an onboard display apparatus. The display panel comprises a first electrode layer; an emissive layer group provided on the first electrode layer; a light extraction layer provided on the emissive layer group, the light extraction layer being in a light emission direction of the display panel and serving as a second electrode layer; and an encapsulation layer provided on the light extraction layer; wherein a refractive index of the light extraction layer is smaller than that of the encapsulation layer, so that the anti-reflection of light emitted by the emissive layer group is realized. In the display panel, the light extraction layer and the encapsulation layer form an anti-reflection layer, so that light emitted by the emissive layer group is emitted as much as possible, and the brightness of the display panel is improved.

A touch display device can include a substrate including an active area and a non-active area, a transistor disposed on the substrate, a sub-pixel electrically connected to the transistor and including an organic light emitting diode, an encapsulation layer disposed on the organic light emitting diode, a planarization layer disposed on the encapsulation layer and including a lens unit, and a plurality of touch electrodes disposed between the encapsulation layer and the planarization layer. The plurality of touch electrodes can include an open area. Further, the lens unit can be disposed in the open area of the plurality of touch electrodes.

A display device includes an auxiliary electrode disposed on a substrate, a bank layer disposed on the auxiliary electrode, a conductive layer disposed on the auxiliary electrode, the conductive layer including a base portion and protrusions protruded from the base portion, an organic layer disposed on the conductive layer, and a cathode electrode disposed on the organic layer, the cathode electrode being in contact with the protrusions.

An organic light emitting element includes a reflection layer, a first electrode, an organic layer including a light emitting layer, and a second electrode, arranged in this order from a side of a substrate. The reflection layer includes a first portion having a first thickness and a second portion having a second thickness smaller than the first thickness. The first electrode overlaps with the second portion, and at least part of an edge of the first electrode overlaps with the second portion in a planar view with respect to the substrate.

A display panel including a power supplying auxiliary electrode above the substrate in at least one gap among gaps between pixel electrodes in row and column directions, not in contact with the pixel electrodes, extending in the row and/or column direction. An intermediate layer is on or above light-emitting layers and the auxiliary electrode, and includes a fluoride of an alkali metal or an alkaline earth metal. A functional layer is on or above the intermediate layer, and includes an organic material that facilitates electron transport and/or facilitates electron injection and a rare earth metal dopant. A counter electrode is on or above the functional layer. Further, 1≤x≤3, 20≤y≤40, and y≥10x+10, where x is film thickness of the intermediate layer in nanometers, and y is percentage by weight of the rare earth metal dopant in the functional layer.

An organic light-emitting diode (OLED) device includes a substrate, a well structure on the substrate with the well structure having a recess with side walls and a floor, a lower metal layer covering the floor and side-walls of the well, an upper conductive layer on the lower metal layer covering the floor of the well and contacting the lower metal layer, the upper conductive layer having outer edges at about an intersection of the side walls and the floor, a dielectric layer formed of an oxide of the lower metal layer covering the side walls of the well without covering the upper conductive layer, a stack of OLED layers covering at least the floor of the well, the upper conductive layer providing an electrode for the stack of OLED layers, and a light extraction layer (LEL) in the well over the stack of OLED layers and the dielectric layer.

A quantum dot LED display apparatus includes a substrate having a plurality of banks deposited thereon. A plurality of red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels are individually disposed between the banks. Each of the red emitting LED sub-pixels, green emitting LED sub-pixels, and blue emitting LED sub-pixels has an emissive layer, wherein each of the emissive layers comprises quantum dots, an organic matrix, and a photoinitiator. A first concentration of the photoinitiator in the blue emitting LED sub-pixels is lower than a second concentration of the photoinitiator in the red emitting LED sub-pixels, and lower than a third concentration of the photoinitiator in the green emitting LED sub-pixels.

A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.

A display panel includes a substrate, a pad, an auxiliary electrode layer, a data line layer, a first electrode layer, a light emitting layer, and a second electrode layer. The substrate has a display area and a peripheral area. The pad is disposed on a side of the substrate and located in the peripheral area. The auxiliary electrode layer is disposed on the same side of the substrate as the pad; the data line layer is disposed on a same layer as the auxiliary electrode layer; the first electrode layer is disposed on a side of the auxiliary electrode layer facing away from the substrate; the light emitting layer is disposed on a side of the first electrode layer facing away from the substrate; and the second electrode layer is disposed on a side of the light emitting layer facing away from the substrate and connected to the auxiliary electrode layer.

A display device includes an anode electrode, an organic light emitting layer, and a first cathode electrode. Provided are a plurality of light emitting elements in which the anode electrode, the organic light emitting layer, and the first cathode are separated for each sub-pixel, a protective layer covering the plurality of light emitting elements, and a second cathode electrode provided on the protective layer. The second cathode electrode is connected to each separated first cathode electrode.