Abstract: The present disclosure provides an inkjet printing device includes a first sprayer and a second sprayer; a first alignment unit configured to align the first sprayer to be above a display region of a display substrate; a second alignment unit configured to align the second sprayer to be above a peripheral region of the display substrate, the peripheral region surrounding the display region; a control unit configured to control the first sprayer to spray a solution toward the display region of the display substrate and control the second sprayer to spray a second solvent toward the peripheral region of the display substrate, the solution being obtained by dissolving a film-forming material in a first solvent; and an evaporation unit configured to evaporate the first solvent and the second solvent so as to form a film at the display region of the display substrate.

Abstract: An ink measuring system and a printing device including the ink measuring system. The ink measuring system includes: a measuring cavity body provided with an opening, where the measuring cavity body includes a side wall and a bottom, and the bottom and the opening are oppositely disposed; at least an air exhaust pipeline penetrating through the bottom; and a filter core disposed inside the measuring cavity body. The printing device further includes a printing system having a bubble discharging function. The printing system includes: a liquid storage box; a sprayer; a liquid inlet pipeline connected to the liquid storage box and the sprayer; a bubble detecting device disposed outside a bubble detecting point of the liquid inlet pipeline; a sprayer valve disposed in the liquid inlet pipeline; a bubble discharging pipeline connected with the liquid inlet pipeline; and a bubble discharging valve disposed in the bubble discharging pipeline.

Abstract: The present disclosure provides a calibration method and a calibration device for a volume of an ink droplet and a printing apparatus including the calibration device. The calibration method for a volume of an ink droplet comprises: calculating a first volume of a single ink droplet based on a mass and a density of an ink droplet; calibrating a measurement parameter used in an optical measurement approach based on the first volume; and acquiring a second volume of a single ink droplet using the optical measurement approach based on the calibrated measurement parameter.

Abstract: The present disclosure provides a printing head cleaning device, comprising a cleaning unit configured to spray cleaning liquid onto a nozzle of a printing head so as to clean the nozzle; and a drying unit configured to dry the cleaned nozzle.

Abstract: An evaporation coating apparatus comprising a heating unit (3) and a cylindrical member (1) disposed within the heating unit (3), wherein the cylindrical member (1) comprises a hollow sleeve (13) and a barrel (12) disposed at an inner side of the hollow sleeve (13) in a fitting manner; wherein a top end area of the hollow sleeve (13) is provided with a first evaporation hole (131), and an external surface of the hollow sleeve (13) is provided with an internal heater strip (4) connected to a control unit; wherein an external surface of the barrel (12) is provided with a groove (1?) extending along an axial central line of the barrel (12), the groove (1?) is provided with a plurality of compartments (11) arranged at interval space, and each of the compartments (11) is provided with a crucible (2); wherein the crucible (2) comprises a main body (21) which is disposed within the compartment (11) and sealed all around with one side opened, and a cover (22) which is connected to the main body (21) in a fitting mann

Abstract: The present disclosure provides a substrate support structure, a vacuum drying device and a vacuum drying method. The substrate support structure includes a support platform and a plurality of pins in the support platform. The plurality of pins is divided into at least two groups, and the at least two groups of pins are in the support platform in such a manner as to be liftable in the support platform, so that a substrate is supported by the at least two groups of pins alternately.

Abstract: An inkjet printing device and method are provided. The inkjet printing device includes a nozzle head; and the nozzle head is provided with a main printing unit and an auxiliary printing unit which share a common liquid supplying pipeline. The main printing unit is located at a middle of the nozzle head and is configured to perform inkjet printing of pixel patterns. The auxiliary printing unit is located at an edge of the nozzle head and is configured to perform inkjet printing of protective patterns. The protective patterns are configured to produce a solvent-protective atmosphere for the pixel patterns at an edge of every printing process.

Abstract: A printing apparatus is provided, including: a liquid supply tank for storing and supplying ink, where a liquid supply outlet is arranged on a bottom wall of the liquid supply tank; a liquid level measuring device for measuring a height of a liquid level in the liquid supply tank; a regulating device for regulating an air pressure in the liquid supply tank; and a controller, for controlling the regulating device to regulate the air pressure in the liquid supply tank based on the height of the liquid level measured by the liquid level measuring device and maintaining a pressure at the liquid supply outlet of the liquid supply tank.

Abstract: The present disclosure provides an evaporation device and an evaporation method using the evaporation device. The evaporation device includes a main chamber with an internal space and an evaporation mechanism under the main chamber. The evaporation mechanism includes at least two crucible accumulation chambers. The evaporation mechanism is configured to be operated in a first state where a first crucible accumulation chamber is at an evaporation position and in communication with the main chamber to form a vacuum space, and evaporation of a material in the crucible in the first crucible accumulation chamber is performed, and in a second state where, in a vacuum environment, the first crucible accumulation chamber is moved away from the evaporation position and a second crucible accumulation chamber is moved to the evaporation position and in communication with the main chamber.

Abstract: The present invention provides a mask plate, a method for processing an organic layer and a method for fabricating an organic light-emitting diode display substrate. The mask plate comprises a light transmitting region and a light shading region. The light transmitting region corresponds to a region of an organic layer to be removed. The light transmitting region is provided with a photothermal conversion material for converting light energy into heat energy. The light shading region is provided with a light blocking layer for blocking transmission of light. The mask plate is suitable for processing an organic layer and particularly suitable for forming an auxiliary via hole in an organic light-emitting layer of an organic light-emitting diode display substrate.

Abstract: Disclosed are an ink-jet printing head, an ink-jet printing method using the ink-jet printing head and an ink-jet printing device including the ink-jet printing head. The ink-jet printing head includes a chamber for accommodating ink and nozzle sets provided on a sidewall of the chamber where ink is sprayed. The nozzle sets are used for ink-jet printing on pixels at different positions, respectively. Each of nozzle sets includes sub-nozzles and the sub-nozzles in each nozzle set can spray different volumes of ink. In the printing head, by providing sub-nozzles having different ink spraying volumes in each nozzle set, ink droplets having desirable volumes can be sprayed from nozzle sets such that total volumes of ink droplets sprayed at different positions from nozzle sets could be more accurate. Therefore, a thickness of a film layer formed by ink-jet printing can be flexibly controlled and adjusted, while having a significantly improved accuracy.

Abstract: The present disclosure provides a printing head cleaning device, comprising a cleaning unit configured to spray cleaning liquid onto a nozzle of a printing head so as to clean the nozzle; and a drying unit configured to dry the cleaned nozzle.

Abstract: The disclosure provides an ink jet printing apparatus. The ink jet printing apparatus includes a support base configured to support the to-be-processed substrate; and a solvent adjusting mechanism, configured to supply a dummy region of the to-be-processed substrate on the support base with a first solvent that is same as a solvent in an ink and adjust a solvent atmosphere of the dummy region of the to-be-processed substrate on the support base, to make the solvent atmosphere of the dummy region of the to-be-processed substrate and that of a center region of the to-be-processed substrate reach a predetermined condition. The solvent adjusting mechanism is arranged on the support base.

Abstract: The invention provides a vapor deposition apparatus and a vapor deposition method for flexible substrate, and pertains to the technical field of display, which can solve the problem that an existing method for subjecting a flexible substrate to vapor deposition is prone to damage a structure formed by vapor deposition already on a flexible substrate. The vapor deposition apparatus for flexible substrate comprises at least two reels used for winding and fixing a flexible substrate; and a wire source unit located at one side of the flexible substrate between the two reels and used for subjecting the flexible substrate between the two reels to vapor deposition. In this vapor deposition apparatus for flexible substrate, the flexible substrate is wound and fixed with the reels and does not need to be peeled off from a glass substrate after vapor deposition is complete, and thus the structure formed by vapor deposition on the flexible substrate will not be damaged.

Abstract: The present disclosure provides a magnetic device and a vapor deposition device. The magnetic device is configured to adsorb a metal mask in the vapor deposition device, including: a metal plate; an electromagnet array including a plurality of electromagnets; each of the electromagnets being inserted in the metal plate; a power supply module configured to supply a current; a control module configured to, when adsorbing the metal mask during a vapor deposition process, control the power supply module to supply a direct current to all or some of the plurality of electromagnets and control a direction and a size of the direct current by sending a first control signal to the power supply module.

Abstract: A printing apparatus is provided, including: a liquid supply tank for storing and supplying ink, where a liquid supply outlet is arranged on a bottom wall of the liquid supply tank; a liquid level measuring device for measuring a height of a liquid level in the liquid supply tank; a regulating device for regulating an air pressure in the liquid supply tank; and a controller, for controlling the regulating device to regulate the air pressure in the liquid supply tank based on the height of the liquid level measured by the liquid level measuring device and maintaining a pressure at the liquid supply outlet of the liquid supply tank.

Abstract: The present disclosure relates to a method and an apparatus for separating a flexible display film from a substrate. The method of separating a flexible display film from a substrate according to the present disclosure comprises the steps of dividing the substrate attached with the flexible display film on a side thereof into a plurality of pieces, and separating part or all of the plurality of pieces from the flexible display film. The apparatus for separating a flexible display film from a substrate according to the present disclosure comprises a division component configured to divide the substrate attached with the flexible display film on a side thereof into the plurality of pieces, and a substrate-film separation component configured to separate part or all of the pieces from the flexible display film.

Abstract: A crucible structure including a crucible body and a crucible cover. The crucible body includes a crucible bottom wall and a crucible side wall. One end of the crucible side wall is connected to the crucible bottom wall, and the other end of the crucible side wall is provided with the crucible cover. An included angle between the crucible cover and an axial direction of the crucible is an acute angle. The crucible cover is provided with an opening structure.

Abstract: The present disclosure provides a substrate support structure, a vacuum drying device and a vacuum drying method. The substrate support structure includes a support platform and a plurality of pins in the support platform. The plurality of pins is divided into at least two groups, and the at least two groups of pins are in the support platform in such a manner as to be liftable in the support platform, so that a substrate is supported by the at least two groups of pins alternately.

Abstract: The present disclosure provides an evaporation source and an evaporation device. The evaporation source includes a heat source structure and an evaporation container for accommodating a to-be-evaporated material. The heat source structure includes a heat source and a thermal conductor. The thermal conductor is in contact with the evaporation container, and the heat source is at the thermal conductor and around the evaporation container.