Abstract: Among other things, embodiments of the present disclosure improve the functionality of electronic messaging software and systems by allowing senders to transmit messages and content using a messaging system, and recipients to access such messages and content, even if the recipients do not have access to the messaging system.

Abstract: The present disclosure provides a display panel comprising multiple first, second and third sub-pixels having first, second and third effective light-emitting regions respectively. In a row direction, the first effective light-emitting regions form first rows of effective light-emitting regions, and the second and third effective light-emitting regions are alternately arranged to form second rows of effective light-emitting region. The first and second rows are alternately arranged in a column direction perpendicular to the row direction. A virtual quadrilateral is formed by lines connecting geometric centers of gravity of four first effective light-emitting regions in two adjacent rows and two adjacent columns. Geometric centers of gravity of the second and third effective light-emitting region are located in corresponding virtual quadrilaterals respectively.

Abstract: A color film structure includes a black matrix, a color film layer and a reflective layer. The black matrix has a plurality of openings. The color film layer includes a plurality of filter portions, and at least a portion of each filter portion is located in an opening of the black matrix. The reflective layer is located on a side of the black matrix configured to be proximate to a light-emitting substrate, and an orthographic projection of the reflective layer on a plane where the black matrix is located is covered by the black matrix. The reflective layer is configured to reflect at least a part of light emitted from the light-emitting substrate to the black matrix back to the light-emitting substrate, so that at least a part of the light reflected back to the light-emitting substrate is emitted through the color film layer.

Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a substrate; and a light-emitting device and a packaging structure on the substrate, the packaging structure sealing the light-emitting device on the substrate. The light-emitting device includes a cathode, an anode, and a light-emitting layer between the cathode and the anode; the packaging structure includes a first inorganic packaging layer, and the first inorganic packaging layer includes a first inorganic packaging sublayer, a second inorganic packaging sublayer, and a third inorganic packaging sublayer that are sequentially stacked; and a refractive index of the second inorganic packaging sublayer is greater than a refractive index of the first inorganic packaging sublayer, and a difference between the refractive index of the second inorganic packaging sublayer and the refractive index of the first inorganic packaging sublayer is greater than 0.

Abstract: This invention provides an OLED display substrate, a method for manufacturing the same, and a display device, which belongs to the technical field of displays. The OLED display substrate includes: a drive substrate, the drive substrate being provided with a light-emitting unit; and an encapsulation structure covering the light-emitting unit. The encapsulation structure comprises a first inorganic structure, an organic layer and a second inorganic structure arranged in sequence along a direction away from the drive substrate. A refractive index of the first inorganic structure is higher than a refractive index of the organic layer, the first inorganic structure comprises at least one inorganic layer, and a thickness of one inorganic layer of the at least one inorganic layer is not larger than 500 nm. With the technical solution of this invention, the display effect of the OLED display substrate can be improved.

Abstract: A display substrate includes a first electrode layer, a pixel define layer, an organic light-emitting layer, a second electrode layer and a first encapsulation layer which are sequentially disposed away from an base substrate. The pixel define layer has a plurality of openings, at least one of which exposes the first electrode layer. The pixel define layer has a first climbing part and a second climbing part close to the edge of at least one opening, the distance from a surface of the second climbing part away from the base substrate to the base substrate is greater than the distance from a surface of the first climbing part away from the base substrate to the base substrate, and the slope angle of the first climbing part is different from that of the second climbing part.

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, and a display device. The display substrate includes a pixel define layer and a post spacer disposed on a driving structure layer, wherein the post spacer is disposed on a surface of the pixel define layer at one side away from the driving structure layer, and an orthographic projection of the post spacer on a substrate is within an orthographic projection of the pixel define layer on the substrate; there is a protrusion on a surface of the post spacer at one side away from the driving structure layer, a height of the protrusion being less than 0.2 µm.

Abstract: An organic light emitting diode, a manufacturing method thereof, a display substrate and a display apparatus are disclosed. The organic light emitting diode includes: a first electrode and a second electrode opposite to each other and a first hole transport layer, a first electron blocking layer, a blue emission layer, at least one first hole blocking layer, and a first electron transport layer, which are between the first electrode and the second electrode and sequentially arranged in a direction approaching the second electrode, wherein a total thickness of all the at least one first hole blocking layer is greater than a thickness of the first electron blocking layer.

Abstract: A material with a hole injection function and/or a hole transport function includes a host material and a crystallisation inhibitor doped in the host material. The crystallisation inhibitor is capable of inhibiting crystallisation of the host material during evaporation, and the crystallisation inhibitor has a hole injection function and/or a hole transport function.

Abstract: A display panel is provided, has a first region and a second region and includes a base substrate; a light-emitting layer arranged on a side of the base substrate, the light-emitting layer includes a plurality of light-emitting patterns, and orthographic projections of the plurality of light-emitting patterns on the base substrate do not overlap with each other; a plurality of transparent suppression patterns arranged on the side of the base substrate and located between at least a part of adjacent light-emitting patterns, the plurality of transparent suppression patterns are located in the first region and spaced apart; a first electrode arranged on a side of the light-emitting layer away from the base substrate, a plurality of through holes are defined on the first electrode, orthographic projections of the through holes on the base substrate overlap with that of the transparent suppression patterns on the base substrate.

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, a display apparatus and a mask. In the display substrate, a pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel, a luminance brightness ratio of the first sub-pixel is greater than a luminance brightness ratio of the second sub-pixel, and the luminance brightness ratio of the second sub-pixel is greater than a luminance brightness ratio of the third sub-pixel. The first sub-pixel and the second sub-pixel are located in a first column, the third sub-pixel is located in a second column, and the plurality of pixel units includes a plurality of first pixel units and a plurality of second pixel units.

Abstract: A pixel structure includes: a pixel definition layer having a first side and a second side which are opposite to each other in a thickness direction of the pixel definition layer, the pixel definition layer including a pixel opening having sidewalls; an island-shaped portion disposed in the pixel opening of the pixel definition layer and spaced apart from the sidewalls of the pixel opening, the island-shaped portion having sidewalls, and the sidewalls of the pixel opening and the sidewalls of the island-shaped portion defining a ring-shaped pixel groove; and a light emitting unit, at least a part of which is disposed in the ring-shaped pixel groove.

Abstract: A display apparatus is provided, including a plurality of light-emitting units disposed on a substrate. Each light-emitting unit includes a first electrode layer, an organic light-emitting layer and a second electrode layer arranged in sequence along a first direction, and has a first light-emitting region, an island-shaped region and a second light-emitting region continuously arranged in sequence along a second direction. The first direction is a direction perpendicular to the substrate, and the second direction is a direction parallel to the substrate. The first electrode layer continuously extends in the first light-emitting region, the island-shaped region and the second light-emitting region, and the first electrode layer is formed with a first protrusion portion in the island-shaped region.

Abstract: The present disclosure provides a mask plate and a fabricating method thereof. The mask plate includes a patterning layer having a plurality of openings; a bonding region at a periphery of the patterning region and including a bonding part configured to be bonded to an external frame; and a transition region between the patterning region and the bonding region and including a transition part, the transition part adjoining the patterning layer and the bonding part, respectively; a thickness of the patterning layer is less than a thickness of the bonding part; and a thickness of a portion of the transition part adjoining the patterning layer is less than a thickness of a portion of the transition part adjoining the bonding part. The mask plate of the present disclosure can alleviate problem that the patterning layer is thin and easy to deform and has improved flatness of the patterning layer.

Abstract: Provided is an organic light emitting device, including a first electrode, second electrode, and first and second emitting layers that are disposed between first and second electrodes. The first emitting layer is located on a side of the second emitting layer close to the first electrode. The first emitting layer includes a first host material and first dopant material. The second emitting layer includes a second host material different from the first host material, and second dopant material. An electron block layer disposed between first emitting layer and first electrode, first emitting layer and second emitting layer satisfy: |HOMOEBL<|HOMOEML1|<HOMOEML2|, |HOMOEML1?HOMOEBL|=0.2 eV to 0.4 eV, where HOMOEBL is a HOMO energy level of the electron block layer, HOMOEML1 is a HOMO energy level of the first emitting layer, HOMOEML2 is a HOMO energy level of the second emitting layer.

Abstract: A display substrate, a display panel, an electronic device and a display method. The display substrate includes first electrodes in a first display region and second electrodes in a second display region, a first light-emitting portion in the first display region and a second light-emitting portion in the second display region, and the first electrodes being of strip shapes extending along a first direction and being spaced apart from each other along a second direction; third electrodes in the first display region and a fourth electrode in the second display region, the third electrode being of strip shapes extending along the second direction and being spaced apart from each other along the first direction.

Abstract: A device and method for evaluating long-term operation of a transformer oil pump. An inlet of an oil pump is connected to an outlet of an oil tank through an oil pipe, and an outlet of the oil pump is connected to an inlet of the oil tank through an oil pipe. A pressure gauge is provided on the oil pipe to the inlet and the outlet of the oil pump, respectively. An ultra-high-frequency (UHF) sensor is provided on an inner wall of an oil pipe close to the oil pump. A pressure difference between the oil pipes to the inlet and to the outlet of the oil pump is monitored. A three-phase unbalanced current of a stator winding is monitored. The vibration of the oil pump is monitored. The rotor-to-stator rub is monitored. Based on the above inspection, a long-term health status of the oil pump is determined.

Abstract: Provided are a method for preparing an organic light-emitting display panel, an organic light-emitting display panel, and a display device. The method comprises: forming a pixel defining layer on one side of a substrate; forming a pixel supporting layer on the side of the pixel defining layer away from the substrate, and causing the orthographic projection of the surface of the pixel supporting layer that faces the pixel defining layer on the substrate to be within the range of the orthographic projection of the side surface of the pixel supporting layer away from the pixel defining layer on the substrate; forming a light-emitting functional layer on the side of the pixel supporting layer away from the pixel defining layer; and removing the pixel supporting layer to obtain an organic light-emitting display panel.

Abstract: Provided are a display substrate, and a display device. The display substrate includes a base substrate and a plurality of pixel units on the base substrate. Each of the pixel units includes a plurality of sub-pixels, the pixel units include a target pixel unit, the target pixel unit includes target sub-pixels, the target sub-pixel includes a pixel driving circuit and a light-emitting unit capable of emitting light under the drive of the pixel driving circuit, the target sub-pixel further includes a photoresistor, the photoresistor is electrically connected to the pixel driving circuit, and the resistance value of the photoresistor increases as light intensity decreases. According to the present disclosure, the pixel driving circuit includes a photoresistor, and the resistance value of the photoresistor decreases as light intensity increases.

Abstract: A light-emitting device includes a first electrode, a light-emitting function pattern and a second electrode. The first electrode has at least one first depression portion. The light-emitting function pattern is disposed on the first electrode, the light-emitting function pattern covers at least the first depression portion(s), and a portion of the light-emitting function pattern covering a first depression portion is conformal to the first depression portion.