Abstract: Provided are a top emitting display panel and a display device, the top emitting display panel includes a substrate, a light-emitting structure and a cover layer, wherein the light-emitting structure comprises a first light-emitting structure, a second light-emitting structure and a third light-emitting structure, and corresponding light-emitting wavelengths are a first wavelength, a second wavelength and a third wavelength respectively; the cover layer is located on a side of the light-emitting structure away from the substrate, and includes at least two of a first region located on the first light-emitting structure, a second region located on the second light-emitting structure, and a third region located on the third light-emitting structure, the first region has a thickness such that twice of the length of an equivalent optical path in the first region along a thickness direction is an integer multiple of the first wavelength; the second region has a thickness such that twice of the length of an equivale

Abstract: A display panel is provided, including a driving back plate, sub-pixels and micro-lens units; the micro-lens units are on a side of the sub-pixels away from the driving back plate; an orthographic projection of each micro-lens unit covers an orthographic projection of an opening of the corresponding sub-pixel; a pattern of each micro-lens unit is axisymmetric with respect to an axis in any cross section perpendicular to the driving back plate and passing through a center of the orthographic projection of the micro-lens unit; the axis is a straight line passing through the center and perpendicular to the driving back plate; in the cross section, a distance from any point on a side of the micro-lens unit away from the driving back plate to the center is D, a length of a side of the micro-lens unit close to the driving back plate is 2R, and 0.9?D/R?1.0.

Abstract: A display panel and a display device are provided. The display panel includes a base substrate and a pixel definition layer, the pixel definition layer includes multiple first retaining walls and multiple second retaining walls, and a height of the first retaining walls is less than a height of the second retaining walls. A first retaining wall includes multiple sub-retaining walls, a sub-retaining wall is located between two adjacent second retaining walls, multiple first structures are provided on a surface of at least one of the sub-retaining walls, a first structure includes a first sub-structure and a second sub-structure, the first sub-structure and the second sub-structure are alternately provided, and a height of the first sub-structure is less than or equal to the height of the first retaining wall.

Abstract: A display panel, a manufacturing method, and a display device are provided. The display panel includes a substrate and a pixel definition layer. The pixel definition layer includes multiple first barrier walls extending along a first direction and arranged along a second direction and multiple second barrier walls extending along the second direction and arranged along the first direction. The first direction and the second direction intersect. The first barrier walls include two edge barrier walls at two edges along the second direction, multiple intermediate barrier walls between the two edge barrier walls, and two separation barrier walls between the two edge barrier walls and respectively on two sides of the intermediate barrier walls along the second direction. The heights of the second barrier walls, the edge barrier walls and the separation barrier walls each is greater than the height of the intermediate barrier wall.

Abstract: A method of preparing organic functional layers of light-emitting device including: forming a plurality of holding portions in a pixel definition layer on a substrate; forming a plurality of ink droplets in the holding portions, the ink droplets including a first solvent, a second solvent and one or more solutes, a first saturated vapor pressure of the first solvent being higher than a second saturated vapor pressure of the second solvent, a solubility of the solutes in the first solvent being less than a solubility of the solutes in the second solvent, and a first affinity of lower parts of side walls of the holding portions for the first solvent is greater than a second affinity of the lower parts of the side walls of the holding portions for the second solvent; adjusting a vacuum degree of vacuum drying equipment to a first vacuum degree below the first saturated vapor pressure and above the second saturated vapor pressure to completely remove the first solvent; and adjusting the vacuum degree of the vacuu

Abstract: A display substrate and a manufacturing method thereof, a display device, and an inkjet printing method. The display substrate comprises a base substrate. A pixel definition layer is provided at the base substrate. The pixel definition layer is provided with a pixel area for accommodating print drops. A stepped hole having a step shape is formed in the pixel area. The stepped hole comprises at least two steps. A barrier wall is provided inside the stepped hole to separate the adjacent steps.

Abstract: A display substrate includes a peripheral display region and a central display region. Multiple first pixel units are regularly arranged within the peripheral display region, and multiple second pixel units are regularly arranged within the central display region. Pixels Per Inch of the first pixel units within the peripheral display region is greater than Pixels Per Inch of the second pixel units within the central display region; or, Pixels Per Inch of the first pixel units within the peripheral display region is equal to Pixels Per Inch of the second pixel units within the central display region, and an area of the first pixel unit is larger than an area of the second pixel unit.

Abstract: The present application relates to a display substrate, a method of manufacturing thereof and a display device. The display substrate includes a base and sub-pixels on the base. Each of the sub-pixels includes a light-emitting device. The light-emitting device includes an anode layer, a light-emitting material layer, an electron transport layer, an electron injection layer and a cathode layer; the light-emitting device includes at least one electron injection layer, and the light-emitting device further includes at least one high impedance layer.

Abstract: Provided are a display panel and a display device. The display panel includes a substrate; sub-pixels on a side of the substrate, where the sub-pixels include light-emitting layers respectively, and each of at least one light-emitting layer includes an internal region and an edge region surrounding the internal region; and a first structure layer, on a light-emitting side of the light-emitting layers, and including lens sets each including microlenses, where the lens sets correspond to the sub-pixels one by one. The lens set includes a first region corresponding to the internal region and a second region corresponding to the edge region, and a density of microlenses in the second region is smaller than a density of mircolenses in the first region. According to the present disclosure, a display effect is improved.

Abstract: A display substrate includes a peripheral display region and a central display region. Multiple first pixel units are regularly arranged within the peripheral display region, and multiple second pixel units are regularly arranged within the central display region. Pixels Per Inch of the first pixel units within the peripheral display region is greater than Pixels Per Inch of the second pixel units within the central display region; or, Pixels Per Inch of the first pixel units within the peripheral display region is equal to Pixels Per Inch of the second pixel units within the central display region, and an area of the first pixel unit is larger than an area of the second pixel unit.

Abstract: An anti-reflective stack and a method of manufacturing the same, a display panel, and a display device. The anti-reflective stack includes: a substrate having a first refractive index and a first surface; an antistatic layer on a side of the substrate, the antistatic layer having a second refractive index and a second surface opposite to the first surface; and an anti-reflective layer between the substrate and the antistatic layer, the anti-reflective layer including at least one composite layer which includes a first anti-reflective layer having a third refractive index and a second anti-reflective layer having a fourth refractive index, where at most one first anti-reflective layer is attached with the first surface, and at most one second anti-reflective layer is attached with the second surface, and each of the second refractive index and the third refractive index is greater than the first refractive index and the fourth refractive index.

Abstract: A display panel and a method for manufacturing the same, and a displaying device, which relates to the technical field of displaying. The display panel includes a substrate base plate, and a pixel definition layer. The pixel definition layer is configured for defining a plurality of sub-pixel openings, and includes: primary pixel blocking walls and a plurality of sub-pixel blocking walls that intersect. The plurality of sub-pixel blocking walls include first sub-pixel blocking walls and second sub-pixel blocking walls, both of heights of the first sub-pixel blocking walls and heights of the second sub-pixel blocking walls are less than heights of the primary pixel blocking walls, and the first sub-pixel blocking walls and the second sub-pixel blocking walls have different heights and/or different materials.

Abstract: A display substrate includes a display area including multiple first electrodes and a pixel definition layer; the pixel definition layer includes multiple blocking portions extending in a second direction and spaced in a first direction, and multiple groups of spacing portions spaced in the second direction, each group of spacing portions includes multiple spacing portions spaced in the first direction, each spacing portion is between two adjacent blocking portions; a portion of a blocking portion between two adjacent spacing portions in the first direction is a first portion, and a portion of the blocking portion between two adjacent first portions is a second portion; in the display area, the first portion includes a first material layer and a second material layer that are sequentially stacked in a direction away from the base substrate, a material of the second material layer is the same as a material of the second portions.

Abstract: Provided is a display substrate. The display substrate includes a base substrate, a patterned film disposed on a side of the base substrate, and a planarization film disposed on a side, distal from the base substrate, of the patterned film, wherein a surface, distal from the base substrate, of the patterned film has a depressed portion and a non-depressed portion. A thickness of the depressed portion is less than a thickness of the non-depressed portion, and lyophilicity of the depressed portion is higher than the lyophilicity of the non-depressed portion.

Abstract: Provided are a top emitting display panel and a display device, the top emitting display panel includes a substrate, a light-emitting structure and a cover layer, wherein the light-emitting structure comprises a first light-emitting structure, a second light-emitting structure and a third light-emitting structure, and corresponding light-emitting wavelengths are a first wavelength, a second wavelength and a third wavelength respectively; the cover layer is located on a side of the light-emitting structure away from the substrate, and includes at least two of a first region located on the first light-emitting structure, a second region located on the second light-emitting structure, and a third region located on the third light-emitting structure, the first region has a thickness such that twice of the length of an equivalent optical path in the first region along a thickness direction is an integer multiple of the first wavelength; the second region has a thickness such that twice of the length of an equivale

Abstract: An organic light emitting device, a display substrate and a display apparatus are provided, wherein the organic light emitting device comprises an anode, an organic light emitting layer, a first transition protective layer and a cathode which are stacked sequentially; the organic light emitting layer comprises a hole injection layer, a light emitting material layer, an electron transport layer and an electron injection layer; and a first transition protective layer is disposed between the electron injection layer and the cathode, and forms a PN junction with the electron injection layer.

Abstract: A manufacturing method for a display substrate, a display substrate, and a display device. The uniformity of film thicknesses of light-emitting functional layers in sub-pixel regions of different colors can be achieved, the effective aperture ratio of the sub-pixel regions of different colors can be ensured, and the service life of the device can be prolonged. The manufacturing method includes: providing a base substrate, the base substrate including a plurality of sub-pixel regions of different colors; printing a solution of a light-emitting functional layer in each sub-pixel region, in which the volumes of the solution in the sub-pixel regions of different colors are positively correlated with the saturated vapor pressure of the solution; and performing vacuum drying on the solution to form light-emitting functional layers having uniform film thicknesses.

Abstract: An OLED display panel, a manufacturing method thereof and a display device are provided. The OLED display panel includes an OLED display substrate and an encapsulation layer for encapsulating the OLED display substrate. The OLED display substrate includes a flexible base substrate, and a TFT layer, a planarization layer and an OLED element layer arranged sequentially on the flexible base substrate. At least one layer of the encapsulation layer, and at least one of the flexible base substrate or the planarization layer, are polymer material layers each doped with flexible nano-composite glass fibers.

Abstract: A display substrate and a display device, the display substrate comprising a transparent display area and a non-display area disposed on the periphery of the transparent display area; the transparent display area comprises a base substrate and a plurality of display units which are arranged in an array on the base substrate; the display units each comprise a display area and a first transparent area; the display areas each comprise a plurality of sub-pixels, and each sub-pixel comprises a pixel driving circuit and a light-emitting element; the pixel driving circuits are configured to drive the light-emitting elements to emit light; and the display area is at least partially surrounded by the first transparent area. The display device comprises the display substrate.

Abstract: The present disclosure provides a defining solution for preparing a pixel defining layer configured to define individual pixels on a substrate, comprising: a lyophilic material, a lyophobic material and an initiator, wherein the lyophobic material comprises: a first lyophobic material and a second lyophobic material, and wherein a mass average molecular weight of the first lyophobic material is greater than a mass average molecular weight of the second lyophobic material, and a mass average molecular weight of the lyophilic material is greater than the mass average molecular weight of the first lyophobic material. The present disclosure further provides a display panel, a display apparatus and a method of preparing a pixel defining layer.