Abstract: The present disclosure provides an organic electroluminescent device, a display panel and a display device, including a first electrode, a first light-emitting layer, a first electron transport layer, an N-type charge generation layer, a P-type charge generation layer, a first hole transport layer, a second light-emitting layer and a second electrode that are stacked; where the N-type charge generation layer includes a host electron transport material and a first guest electron transport material having a set matching energy level there between.

Abstract: An assembly and a device for vapor deposition are provided in this disclosure, an assembly includes a cell and a housing, the cell is accommodated in the housing, the gaseous materials to be vapor deposited eject from the housing and are vapor deposited onto the substrate. The housing is capable of rotating relative to the cell. The film layer structure can be obtained by controlling the angles of rotation of the housing. Single film layer as well as the composite film layer with various changes of doping ratio can be formed on the substrate of the assembly and the device for vapor deposition in this disclosure.

Abstract: The present disclosure relates to an apparatus for detecting a distance between a carrier and a plate, the apparatus comprising: a base provided on the carrier; a rotation mechanism rotatably provided on the base and configured to rotate when the carrier is in contact with the plate during movement of the carrier relative to the plate; a rotation angle measuring mechanism configured to measure a rotation angle of the rotation mechanism so as to obtain the distance according to the rotation angle. The distance between the carrier and the plate can be calculated based on the rotation angle of the rotation mechanism, so that accurate measurement of the distance between the carrier and the plate can be realized. Further, the operation performance of the gap detection apparatus would not be affected or damaged by the vacuum environment.

Abstract: Embodiments of the present disclosure provide a printhead, a printing equipment and a printing method. The printhead includes: a primary liquid discharging assembly, including a plurality of primary liquid discharging nozzles for forming primary droplets; and a plurality of flow branching components below the primary liquid discharging assembly, and the plurality of flow branching components being in one-to-one correspondence with the plurality of primary liquid discharging nozzles, wherein each of the plurality of flow branching component is configured to be in contact with the primary droplet formed by the corresponding primary liquid discharging nozzle of the plurality of primary liquid discharging nozzles, and split each of the primary droplets into at least two branched droplets.

Abstract: Embodiments of the present disclosure provide a printhead, a printing equipment and a printing method. The printhead includes: a primary liquid discharging assembly, including a plurality of primary liquid discharging nozzles for forming primary droplets; and a plurality of flow branching components below the primary liquid discharging assembly, and the plurality of flow branching components being in one-to-one correspondence with the plurality of primary liquid discharging nozzles, wherein each of the plurality of flow branching component is configured to be in contact with the primary droplet formed by the corresponding primary liquid discharging nozzle of the plurality of primary liquid discharging nozzles, and split each of the primary droplets into at least two branched droplets.

Abstract: The present disclosure relates to an apparatus for detecting a distance between a carrier and a plate, the apparatus comprising: a base provided on the carrier; a rotation mechanism rotatably provided on the base and configured to rotate when the carrier is in contact with the plate during movement of the carrier relative to the plate; a rotation angle measuring mechanism configured to measure a rotation angle of the rotation mechanism so as to obtain the distance according to the rotation angle. The distance between the carrier and the plate can be calculated based on the rotation angle of the rotation mechanism, so that accurate measurement of the distance between the carrier and the plate can be realized. Further, the operation performance of the gap detection apparatus would not be affected or damaged by the vacuum environment.

Abstract: An assembly and a device for vapor deposition are provided in this disclosure, an assembly includes a cell and a housing, the cell is accommodated in the housing, the gaseous materials to be vapor deposited eject from the housing and are vapor deposited onto the substrate. The housing is capable of rotating relative to the cell. The film layer structure can be obtained by controlling the angles of rotation of the housing. Single film layer as well as the composite film layer with various changes of doping ratio can be formed on the substrate of the assembly and the device for vapor deposition in this disclosure.

Abstract: A method and a system for controlling automatic quantitative fluid supply are disclosed, and the method and the system automatically control the quantitative fluid supply by timing a period of time t required for introducing gas (20) into a sealing tank (4) in such a way that the pressure in the sealing tank (4) reaches a default value and calculating a period of time T, required for continuously introducing the gas (20) into the sealing tank (4) to extrude a fixed volume (V) of the fluid, from the time t, in the process of automatic quantitative fluid supply, so as to automatically control the switching-on and -off of a gas passage (1), overcome the impact of the reduction of the liquid level on the quantitative supply accuracy and guarantee the accuracy requirement of repeated quantitative supply.

Abstract: A vapor deposition system including a vapor deposition mechanism and a separation mechanism is provided. The vapor deposition mechanism includes a vapor deposition source, and further includes a vapor deposition baseplate and a cover plate that are located at a side of the vapor deposition source in a vapor deposition direction in order; the cover plate comprises a frame defining an enclosed frame region, the frame comprises a contact surface with the vapor deposition baseplate, and the contact surface comprise an adhesion portion, and the vapor deposition baseplate is capable of being adhered to the cover plate; the separation mechanism comprises at least one support plate and at least one movable bar connected with the support plate, the movable bar is configured to separate the vapor deposition baseplate from the cover plate after completion of film vapor deposition.

Abstract: A vacuum evaporation apparatus comprises a housing, in which a main vacuum cavity, a side vacuum cavity and a switch assembly are disposed. The main vacuum cavity is configured for vacuum evaporation. A tomography detection module for scanning a crucible to be measured and a manipulator for accessing a crucible in main vacuum cavity are disposed in the side vacuum cavity. A switch assembly is disposed between the main vacuum cavity and the side vacuum cavity. Where the switch assembly is opened, the main vacuum cavity and the side vacuum cavity are communicated with each other to enable accessing the crucible. Where the switch assembly is closed, the main vacuum cavity and the side vacuum cavity are separated from each other.

Abstract: A method and a system for controlling automatic quantitative fluid supply are disclosed, and the method and the system automatically control the quantitative fluid supply by timing a period of time t required for introducing gas (20) into a sealing tank (4) in such a way that the pressure in the sealing tank (4) reaches a default value and calculating a period of time T, required for continuously introducing the gas (20) into the sealing tank (4) to extrude a fixed volume (V) of the fluid, from the time t, in the process of automatic quantitative fluid supply, so as to automatically control the switching-on and -off of a gas passage (1), overcome the impact of the reduction of the liquid level on the quantitative supply accuracy and guarantee the accuracy requirement of repeated quantitative supply.

Abstract: A portable electronic device includes a control unit, an antenna, a switching unit, a multimedia broadcasting unit, a FM unit, and a speaker. The control unit and the antenna are electrically connected to the switching unit. The switching unit is electrically connected to the speaker via the multimedia broadcasting unit and the FM unit. The antenna receives multimedia broadcasting signals and FM signals. The control unit controls the switching unit switch between the multimedia broadcasting unit and the FM unit to receive corresponding signals from the antenna. The speaker outputs the signals from the multimedia broadcasting unit and the FM unit.