Abstract: An organic electroluminescent device, a display panel, a display device, and a light emitting device are described. The organic electroluminescent device includes an anode, an electron blocking layer, a buffer layer, an organic light emitting layer, and a cathode that are sequentially stacked. The thickness of the buffer layer is in a range from 1 nm to 100 nm. The material of the buffer layer comprises a compound shown in a first chemical formula as below: The organic electroluminescence device can improve the life of the device.

Abstract: A light emitting diode is provided. The light emitting diode includes a hole injection layer; and at least one of a hole transport layer or an electron barrier layer. The hole injection layer includes a host material doped with a guest material. The host material includes an aromatic material having one or more large steric hindrance groups.

Abstract: The present disclosure provides a light emitting device and a display panel, and belongs to the field of display technology. The light emitting device includes an anode, a cathode, a plurality of light emitting units between the anode and the cathode, and a charge separation generation unit between every two adjacent light emitting units; the plurality of light emitting units include a first light emitting unit and a second light emitting unit, and the first light emitting unit is closer to the anode than the second light emitting unit; and the first light emitting unit at least includes a first electron transport sub-unit, the second light emitting unit at least includes a second electron transport sub-unit, and a thickness of the first electron transport sub-unit is less than that of the second electron transport sub-unit.

Abstract: A light-emitting device includes at least two capping layers which include a first capping layer closest to a second electrode. A refractive index of a capping layer closer to the second electrode is greater than that of a capping layer farther away from the second electrode. A first capping layer material satisfies at least one of: the intermolecular minimum center-of-mass distance of the first capping layer material is in a range of 2 ? to 6 ?, and the dimension of the molecular structure of the first capping layer material in the third direction is in a range of 3 ? to 15 ?; and further satisfies at least one of: the molecular volume of the first capping layer material is in a range of 4000 Bohr3 to 8000 Bohr3, and the molecular density of the first capping layer material is in a range of 1.2 g/cm3 to 2.6 g/cm3.

Abstract: A phosphoryl derivative, the use, an organic light-emitting diode, and a display apparatus. A phosphoryl group of the phosphoryl derivative is directly bonded to two substituted or unsubstituted aryl groups, and at least is directly bonded to or is indirectly bonded via a bridge group to a non-conjugated substituent group.

Abstract: A structural general formula of a diarylamine compound is formula (I):

Abstract: The present application provides a light-emitting device and a display device, which relates to the field of display technology, including: a substrate; a first electrode and a second electrode located on the substrate: a light-emitting layer located between the first electrode and the second electrode; and a capping layer located on a side of the second electrode away from the light-emitting layer, wherein the capping layer includes a compound of aromatic amines, and a structure of the compound of aromatic amines includes one of following two structures 1: and the capping layer made of the compound of aromatic amines has a high refractive index and high stability, such that when the light-emitting device is used, the light-outlet efficiency of the device may be improved, and the service life of the device may be prolonged.

Abstract: A light emitting material includes a host material, the host material comprises a first compound having a structural general Formula I.

Abstract: Disclosed are a method, an apparatus and a non-transitory storage medium. The method includes: dividing satellites of the mega-constellation into satellite topology groups, so as to construct corresponding space-time grids, obtaining a dynamic matching relationship in time domain between the space-time grids and the satellite topology groups, setting a path weight for each space-time grid, acquiring a static grid path for forwarding a mission, where the static grid path is determined by an order of the space-time grids that need to be passed sequentially to forward the mission, adjusting the static grid path according to the satellite node currently receiving the mission and the dynamic matching relationship, so as to acquire the next satellite node to which the mission is forwarded from the satellite node currently receiving the mission.

Abstract: An organic light-emitting diode includes: an anode, a cathode and a light-emitting layer between the anode and the cathode. The light-emitting layer has a blue light host material; on the side of the light-emitting layer facing the anode, an electron blocking layer is provided in the direction away from the light-emitting layer; the electron blocking layer has a hole material; and the hole material has a structural formula as shown in the following formula (I), and the blue light host material has a structural formula as shown in the following formula (II).

Abstract: A method is implemented in a digital unit connected with a plurality of distributed antennas including a first antenna, a second antenna and a third antenna. The method comprises: causing transmitting a first signal from the first antenna, a second signal from the second antenna, and a third signal from the third antenna in a same frequency resource; obtaining a receiver and transmitter side loop-back phase difference between the first antenna and the second antenna based on the first signal received at the third antenna, the second signal received at the third antenna, the third signal received at the first antenna, and the third signal received at the second antenna; and obtaining estimations of a time delay difference and an initial phase difference between the first and second antennas based on the obtained loop-back phase difference.

Abstract: The present disclosure provides a multi-arm spacecraft model predictive control method based on the mixture of Gaussian processes, equipment, and a medium. Model predictive control has excellent performance in dealing with complex nonlinear systems such as multi-arm spacecrafts with various constraints, and is widely applied to ground robots, unmanned aerial vehicles, autonomous driving and other practical scenarios. Therefore, a task space controller is designed based on the model predictive control in the present disclosure. Besides, in order to enhance the anti-interference capability of the present disclosure, an interference model is established and compensation is carried out in the model predictive control by utilizing the characteristics of small training data volume and high training speed in the mixture of Gaussian processes. Finally, a thrust distribution method is designed to complete platform control.

Abstract: A material for forming a blue light-emitting layer, comprising: a main material and a dopant material doped in the main material, wherein there is an overlapping region between the normalized fluorescence emission spectrum of the main material and the normalized absorption spectrum of the dopant material, and the integrated area of the overlapping region is greater than or equal to 50% of the integrated area of the normalized fluorescence emission spectrum of the main material.

Abstract: The present disclosure provides an OLED display device, a display panel and a manufacturing method of the OLED display device, and belongs to the field of display technology. The OLED display device includes a light-emitting layer, a material of the light-emitting layer includes a host light-emitting material and a carrier balance material doped in the host light-emitting material; and the carrier balance material is used for balancing an electron mobility and a hole mobility of the light-emitting layer.

Abstract: Disclosed are a ground test system and a test method for a space-oriented multi-arm spacecraft system. A spacecraft system simulator floats on an air-floating platform through four porous air feet, a test truss is placed around the air-floating platform, a simulation auxiliary docking device, a simulation crawling truss and a satellite model are arranged in a middle of a ceiling of the test truss, and an assembly test area and a silent air compressor are arranged on sides of the test truss. The application is used to solve the problems that the prior art cannot simulate the movement and crawling of the multi-arm spacecraft system in space, assembly of large space structures, and the prior art cannot simulate the influence of assembling, catching and other actions on a base in a weightless environment.

Abstract: A light-emitting device includes a light-emitting layer. The light-emitting layer includes a host material. The host material includes a p-type material and an n-type material. The p-type material and the n-type material are configured to form an exciplex. An absolute value of a difference between a wavelength corresponding to a peak of a normalized fluorescence emission spectrum of the exciplex and a wavelength corresponding to a peak of a normalized fluorescence emission spectrum of the n-type material being less than or equal to 5 nm.

Abstract: Disclosed are a ground test system and a test method for a space-oriented multi-arm spacecraft system. A spacecraft system simulator floats on an air-floating platform through four porous air feet, a test truss is placed around the air-floating platform, a simulation auxiliary docking device, a simulation crawling truss and a satellite model are arranged in a middle of a ceiling of the test truss, and an assembly test area and a silent air compressor are arranged on sides of the test truss. The application is used to solve the problems that the prior art cannot simulate the movement and crawling of the multi-arm spacecraft system in space, assembly of large space structures, and the prior art cannot simulate the influence of assembling, catching and other actions on a base in a weightless environment.

Abstract: An organic electroluminescent device, a display panel, a display device, and a light emitting device are described. The organic electroluminescent device includes an anode, an electron blocking layer, a buffer layer, an organic light emitting layer, and a cathode that are sequentially stacked. The thickness of the buffer layer is in a range from 1 nm to 100 nm. The material of the buffer layer comprises a compound shown in a first chemical formula as below: The organic electroluminescence device can improve the life of the device.

Abstract: The present disclosure provides a blue organic light-emitting diode. The blue organic light-emitting diode comprises a hole transport layer, a co-evaporation layer, a blue light-emitting auxiliary layer, a blue light-emitting layer, and an electron transport layer which are sequentially stacked. A material of the co-evaporation layer includes a mixture of a material of the hole transport layer and a material of the blue light-emitting auxiliary layer. The present disclosure also provides a display device. The display device has a good display effect under a low gray scale.

Abstract: The present application relates to an image-fusion method and apparatus, a computing and processing device and a storage medium.