The invention provides a transparent OLED display panel and manufacturing method thereof, the OLED display panel comprising: a transparent substrate and a plurality of sub-pixels disposed on the substrate arranged in an array; each sub-pixel comprising: an anode disposed on the substrate, an organic light-emitting layer disposed on the anode, and a transparent cathode disposed on the organic light-emitting layer; the anode comprising: a first transparent electrode, a reflective electrode stacked on the first transparent electrode, a second transparent electrode stacked on the reflective electrode, the reflective electrode forming a hollow area at the center; through forming hollow area on the reflective electrode of the anode, the light can be emitted simultaneously for the cathode and the hollow area to achieve transparent display with a simple and stable structure, high yield rate and low production cost.

Disclosed are a quantum dot display device and a manufacture method thereof. The quantum dot display device includes a flexible substrate, a first electrode layer, a second electrode layer, and a component combination layer. The material of the first electrode layer is a fullerene-graphene material or a carbon nanotube-graphene material. The material of the second electrode layer is the carbon nanotube-graphene material or the fullerene-graphene material. Or else, both of the material of the first electrode layer and the material of the second electrode layer are non-metal doped graphene. The device can reduce a use of metal material and thus avoid damage to the environment.

The present invention relates to active-matrix OLED display, comprising a plurality of OLED pixels, wherein each pixel itself comprises a stack of organic layers and each layer of the stack of organic layers can form a common semiconductor layer, whereinat least a first OLED pixel and a second OLED pixel comprisingan anode layer, a common cathode layer, at least one emission layer, which is optional a common emission layer, at least a stack of organic layers, wherein the stack of organic layers is arranged between the anode layer and cathode layer.

The present disclosure provides a display panel, a manufacturing method thereof. The display panel includes: a display substrate, and a planarization layer, a pixel defining layer and a light emitting device on the display substrate. The light emitting device includes a first electrode, a second electrode and an organic functional layer, wherein the first electrode and the second electrode are oppositely arranged, and the organic functional layer is between the first electrode and the second electrode; a separation groove is formed in the planarization layer between the light emitting region and the transparent region; at least a portion of the pixel defining layer is in the separation groove; both of the first electrode and the second electrode extend to the separation groove from the light emitting region and stop at the separation groove; the organic functional layer is located within a region defined by the pixel defining layer.

Provided is a display substrate, including: a base, a first signal line, a second signal line, and a first electrode. The first signal line, the second signal line and the first electrode are located on the base and sequentially arranged away from the base, and are insulated from each other; orthographic projections of the first signal line and the second signal line on the base at least partially overlap, an orthographic projection of the first electrode partially overlaps with an overlapping region in which the orthographic projections of the first signal line and the second signal line on the base overlap; an opening is provided in at least a partial region of the first electrode, with the orthographic projection thereof on the base overlaps with the overlapping region in which the orthographic projections of the first signal line and the second signal line on the base overlap with each other.

A display substrate and a display device. The display substrate includes a driving substrate, an anode layer, a pixel definition layer, a light emitting functional layer, a cathode layer and an encapsulation layer; the driving circuit includes at least one transistor, the at least one transistor includes a semiconductor layer, the anode layer includes a plurality of anodes, the display substrate includes a plurality of pixel openings; the plurality of pixel openings are configured to at least overlap with the plurality of anodes; each of the anodes includes a main body portion and a protrusion portion, the protrusion portion is connected with the main body portion; the light emitting functional layer includes a plurality of light emitting portions which are arranged in contact with the main body portions of the plurality of anodes.

A display panel includes a first anode, a pixel defining layer disposed on a base layer and provided with a first light emitting opening, a partition wall disposed on the pixel defining layer and provided with a first partition wall opening corresponding to the first light emitting opening, a first conductive pattern disposed in the first light emitting opening and disposed on the first anode, a first cathode at least partially disposed in the first partition wall opening and disposed over the first conductive pattern, and a first emission pattern disposed between the first conductive pattern and the first cathode. The first conductive pattern contacts a side surface of the pixel defining layer which defines the first light emitting opening.

A display panel and a manufacturing method thereof, and a display device. The display panel includes a display area including a first and a second display area. The display panel includes: a base substrate; a driving circuit layer; anode structures located at the first display area, a gap being provided between adjacent anode structures, at least one anode structure including a functional layer and a first anode and an orthographic projection of the functional layer includes a portion not overlapped with an orthographic projection of the first anode; and a pixel defining layer including a pixel defining portion located in the gap. ?0.1 microns?d1?d2?0.1 microns, wherein d1 is a thickness of the functional layer, $d2=\frac{?\left(2m+1\right)}{2.Math.n1-n2.Math.},$
n1 and n2 are refractive indexes of the functional layer and the pixel defining portion respectively, ? is a wavelength of visible light, and m is an integer.

A display substrate and a method of manufacturing the display substrate are provided. The display substrate includes a base substrate and a plurality of sub-pixels (Pxl). A first electrode of a light-emitting element of the sub-pixel (Pxl) includes: a first conductive layer electrically connected to a source (S) or a drain (D) of a driving transistor of the sub-pixel (Pxl); a second conductive layer; and a transparent material layer. The transparent material layer includes a first transparent material sub-layer and a second transparent material sub-layer, the first transparent material sub-layer is between the second transparent material sub-layer and the second conductive layer, the second transparent material sub-layer covers the first transparent material sub-layer, and an edge of the first transparent material sub-layer is aligned with an edge of the second conductive layer.

Disclosed is a method of manufacturing a display panel. The method includes forming a lower layer on a base layer, forming a preliminary anode including a first initial layer and a second initial layer on the lower layer, patterning the preliminary anode so as to form an anode including a first layer and a second layer, forming an emission part, and forming a cathode. The patterning of the preliminary anode includes forming a photoresist layer, etching the first and second initial layers to form the first layer and the second layer, removing the photoresist layer, and first cleaning. At least a part of the lower layer exposed from the anode is removed during the removing of the photoresist layer or the first cleaning.