Abstract: The OLED display includes a flat display area and an edge curved-surface display area; wherein the edge curved-surface display area is provided with an optical film layer, and the optical film layer is configured to reduce a light intensity of emergent light with a preset color in the edge curved-surface display area.

Abstract: A display panel and a display device are provided. The display panel includes a first color sub-pixels and a second color sub-pixel. The first color sub-pixel includes a first effective light emitting region, the second color sub-pixel includes a second effective light emitting region, an area of the second effective light emitting region is smaller than that of the first effective light emitting region. The first color sub-pixel includes a first color light emitting layer, the second color sub-pixel includes a second color light emitting layer, an area ratio between orthographic projections of the first color light emitting layer and the first effective light emitting region on the base substrate is less than an area ratio between orthographic projections of the second color light emitting layer and the second effective light emitting region on the base substrate.

Abstract: An organic electroluminescence display panel, a manufacturing method, a color shift reducing method, and a display device are provided. The display panel includes a flat surface portion and a curved surface portion. The hole transport layer of the display panel includes a common hole transport layer and hole transport units. The common hole transport layer is distributed in the flat surface portion and the curved surface portion. The hole transport units are disposed on the common hole transport layer and are in one-to-one relationship with sub-pixels of the two portions; the hole transport layer of the sub-pixel of at least one color has different thickness in the two portions; and the thickness of the hole transport layer of the sub-pixel is the sum of the thickness of the common hole transport layer in sub-pixel and the thickness of the hole transport unit of the sub-pixel.

Abstract: The present disclosure relates to a display substrate, a method for preparing the same, and a display device. The display substrate of the present disclosure includes a base substrate, a pixel definition layer located on the base substrate, and a first pixel and a second pixel that are adjacent to each other and defined by the pixel definition layer, in which a spacer function layer for blocking hole transport between adjacent pixels is arranged at at least a part of a contact interface between the second hole transport layer in the second pixel and the light function layer in the first pixel. By providing the spacer function layer, the present disclosure effectively prevents the migration of holes between the hole transport layers of adjacent pixels or between the hole transport layer and the light emitting layer, thereby avoiding accompanying light emission between adjacent pixels.

Abstract: The present disclosure relates to a display substrate, a method for preparing the same, and a display device. The display substrate of the present disclosure includes a base substrate, a pixel definition layer located on the base substrate, and a first pixel and a second pixel that are adjacent to each other and defined by the pixel definition layer, in which a spacer function layer for blocking hole transport between adjacent pixels is arranged at at least a part of a contact interface between the second hole transport layer in the second pixel and the light function layer in the first pixel. By providing the spacer function layer, the present disclosure effectively prevents the migration of holes between the hole transport layers of adjacent pixels or between the hole transport layer and the light emitting layer, thereby avoiding accompanying light emission between adjacent pixels.

Abstract: The disclosure discloses an OLED element, a display panel, and a display device. The OLED element includes an anode, a light-emitting layer, a cathode stacked, and at least one of following components: an electric charge transfer and hole transmission component located between the anode and the light-emitting layer, where the electric charge transfer and hole transmission component includes a first light-induced electron transfer material and a hole transmission material; or an electric charge transfer and electron transmission component located between the cathode and the light-emitting layer, where the electric charge transfer and electron transmission component includes a second light-induced electron transfer material and an electron transmission material.

Abstract: A display panel and a display device are provided. The display panel includes a first color sub-pixels and a second color sub-pixel. The first color sub-pixel includes a first effective light emitting region, the second color sub-pixel includes a second effective light emitting region, an area of the second effective light emitting region is smaller than that of the first effective light emitting region. The first color sub-pixel includes a first color light emitting layer, the second color sub-pixel includes a second color light emitting layer, an area ratio between orthographic projections of the first color light emitting layer and the first effective light emitting region on the base substrate is less than an area ratio between orthographic projections of the second color light emitting layer and the second effective light emitting region on the base substrate.

Abstract: A light-emitting assembly contains a light-emitting diode and a driving circuit configured to provide a driving current for driving the light-emitting diode to emit a light. The driving circuit comprises a thermistor, which is coupled to the light-emitting diode and configured to have an electrical resistance thereof altering with a change of a temperature of the light-emitting assembly to thereby adjust an intensity of the driving current. The thermistor can be a metal thermistor, a negative-temperature coefficient thermistor, a critical-temperature thermistor, or a positive-temperature coefficient thermistor. The light-emitting assembly can automatically adjust a brightness of the light emitted by the light-emitting diode to be within an expected range, causing an improved working life and reliability. The light-emitting assembly can be employed in a lighting device or a display panel.

Abstract: A display panel and a manufacturing method thereof, an electroluminescent device, and a display device are disclosed. The display panel includes: a base substrate; a plurality of electroluminescent elements on the base substrate, each of the plurality of electroluminescent elements including a light emitting layer and a transparent electrode layer on a light exit side of the light emitting layer; and a first optical coupling layer on a side of the plurality of electroluminescent elements where the transparent electrode layer is located, and being coupled to at least a part of the transparent electrode layer. The first optical coupling layer is conductive.

Abstract: An organic electroluminescence display panel, a manufacturing method, a color shift reducing method, and a display device are provided. The display panel includes a flat surface portion and a curved surface portion. The hole transport layer of the display panel includes a common hole transport layer and hole transport units. The common hole transport layer is distributed in the flat surface portion and the curved surface portion. The hole transport units are disposed on the common hole transport layer and are in one-to-one relationship with sub-pixels of the two portions; the hole transport layer of the sub-pixel of at least one color has different thickness in the two portions; and the thickness of the hole transport layer of the sub-pixel is the sum of the thickness of the common hole transport layer in sub-pixel and the thickness of the hole transport unit of the sub-pixel.

Abstract: A display panel and a manufacturing method thereof, an electroluminescent device, and a display device are disclosed. The display panel includes: a base substrate; a plurality of electroluminescent elements on the base substrate, each of the plurality of electroluminescent elements including a light emitting layer and a transparent electrode layer on a light exit side of the light emitting layer; and a first optical coupling layer on a side of the plurality of electroluminescent elements where the transparent electrode layer is located, and being coupled to at least a part of the transparent electrode layer. The first optical coupling layer is conductive.

Abstract: The present disclosure relates to a display substrate, a method for preparing the same, and a display device. The display substrate of the present disclosure includes a base substrate, a pixel definition layer located on the base substrate, and a first pixel and a second pixel that are adjacent to each other and defined by the pixel definition layer, in which a spacer function layer for blocking hole transport between adjacent pixels is arranged at at least a part of a contact interface between the second hole transport layer in the second pixel and the light function layer in the first pixel. By providing the spacer function layer, the present disclosure effectively prevents the migration of holes between the hole transport layers of adjacent pixels or between the hole transport layer and the light emitting layer, thereby avoiding accompanying light emission between adjacent pixels.

Abstract: A light-emitting assembly contains a light-emitting diode and a driving circuit configured to provide a driving current for driving the light-emitting diode to emit a light. The driving circuit comprises a thermistor, which is coupled to the light-emitting diode and configured to have an electrical resistance thereof altering with a change of a temperature of the light-emitting assembly to thereby adjust an intensity of the driving current. The thermistor can be a metal thermistor, a negative-temperature coefficient thermistor, a critical-temperature thermistor, or a positive-temperature coefficient thermistor. The light-emitting assembly can automatically adjust a brightness of the light emitted by the light-emitting diode to be within an expected range, causing an improved working life and reliability. The light-emitting assembly can be employed in a lighting device or a display panel.

Abstract: An organic light-emitting display panel and a display device, comprising: multiple light-emitting components; pixel circuits connected one-to-one to the light-emitting components, the pixel circuits being connected to corresponding first poles of the light-emitting components, second poles of the light-emitting components being connected to first power ends; diversion modules corresponding one-to-one to the light-emitting components, wherein the diversion modules are connected at first ends thereof to the corresponding first poles of the light-emitting components and connected at second ends to the corresponding second poles of the light-emitting components, and the diversion modules are used for diversion with respect to the corresponding light-emitting components when the temperature of the organic light-emitting display panel satisfies a selected temperature range.

Abstract: The OLED display includes a flat display area and an edge curved-surface display area; wherein the edge curved-surface display area is provided with an optical film layer, and the optical film layer is configured to reduce a light intensity of emergent light with a preset color in the edge curved-surface display area.

Abstract: An aging test method for a light emitting device is provided. The aging test method includes: collecting, in an aging process applied to the light emitting device, an initial value of a first characteristic parameter of the light emitting device and an initial test time point; collecting a current value of the first characteristic parameter and a current test time point (step S1); generating a feature line according to the initial value, the current value, the initial test time point, and the current test time point, and calculating a slope of the feature line; determining whether the slope of the feature line is greater than or equal to a predetermined threshold and less than 0, and returning to the step S1 if a result of the determination is NO; and terminating the aging process applied to the light emitting device if the result of the determination is YES.

Abstract: The disclosure discloses an OLED element, a display panel, and a display device. The OLED element includes an anode, a light-emitting layer, a cathode stacked, and at least one of following components: an electric charge transfer and hole transmission component located between the anode and the light-emitting layer, where the electric charge transfer and hole transmission component includes a first light-induced electron transfer material and a hole transmission material; or an electric charge transfer and electron transmission component located between the cathode and the light-emitting layer, where the electric charge transfer and electron transmission component includes a second light-induced electron transfer material and an electron transmission material.

Abstract: This application discloses a feeding device for a crucible, belonging to the field of display technology. The feeding device includes: a base, a robot arm and a bottle holder. The base is movably connected to one end of the robot arm, the one end of the robot arm can move linearly on the base, a motion trajectory of the robot arm is parallel to a lengthwise direction of the crucible. The bottle holder is disposed at the other end of the robot arm and the bottle holder is rotatable at the other end. This application can protect operator's health, improve production efficiency and reduce production costs.

Abstract: An electroluminescent device, a method of manufacturing the electroluminescent device and a display panel are provided. The electroluminescent device includes a first electrode; a second electrode; a light emitting layer between the first electrode and the second electrode; and a light extraction layer on a side of the second electrode facing away from the light emitting layer. The light extraction layer includes a photoresponsive material such that an optical property of the light extraction layer is variable.

Abstract: An aging test method for a light emitting device is provided. The aging test method includes: collecting, in an aging process applied to the light emitting device, an initial value of a first characteristic parameter of the light emitting device and an initial test time point; collecting a current value of the first characteristic parameter and a current test time point (step S1); generating a feature line according to the initial value, the current value, the initial test time point, and the current test time point, and calculating a slope of the feature line; determining whether the slope of the feature line is greater than or equal to a predetermined threshold and less than 0, and returning to the step S1 if a result of the determination is NO; and terminating the aging process applied to the light emitting device if the result of the determination is YES.