Abstract: The present disclosure provides a display panel and preparing method thereof, and a display apparatus. In one or more embodiments, the display panel includes a substrate that includes an off-screen camera region including a plurality of opening regions, a flexible layer located at a side of the substrate, a backplate layer located at a side of the flexible layer away from the substrate and including a plurality of light-transmitting film layers, and a light-emitting device layer located at a side of the backplate layer away from the substrate and including a plurality of cathodes. An orthographic projection of the flexibly layer on the substrate is not overlapped with the opening regions. An orthographic project of at least one light-transmitting film layer on the substrate covers the opening regions. Orthographic projections of the cathodes on the substrate are not overlapped with the opening regions.

Abstract: A pixel circuit includes a driving circuit, configured to drive a light-emitting element to emit light; a compensation control circuit, electrically connected to a first gate line and configured to control a control terminal of the driving circuit to be connected with a second terminal of the driving circuit under the control of a first gate drive signal provided by the first gate line; and a data writing circuit, electrically connected to a second gate line and configured to control a data voltage to be provided to a first terminal of the driving circuit under the control of a second gate drive signal provided by the second gate line. A voltage value of the first gate drive signal is substantially different from a voltage value of the second gate drive signal.

Abstract: The present disclosure provides a rehabilitation training equipment and a rehabilitation training system. The rehabilitation training equipment includes a driving device, a back placement device, a leg aid device, a cushion device, a first feedback device, and a control device. The driving device is configured to adjust rotation angles between the back placement device, the cushion device, and the leg aid device to achieve a posture training mode selected from a plurality of posture training modes including a standing mode, a sitting-up mode, and a lying mode. The first feedback device is used to obtain core muscle strength parameters of the human body. The control device is electrically connected to the first feedback device and the driving device, and is configured to obtain the core muscle strength parameters and send a control signal to the driving device.

Abstract: A display panel includes an array substrate, an OLED light-emitting layer and a color filter structure laminated in sequence, the color filter structure including a color filter layer, a black matrix and a heat conducting layer, wherein the color filter layer and the black matrix are disposed in a same layer, the heat conducting layer is disposed on at least one side of the black matrix and configured to conduct heat from the black matrix to a periphery of the color filter structure.

Abstract: A wafer testing machine and a method for training an artificial intelligence (AI) model to test wafers are provided. The wafer contains multiple dies. The method includes the following steps of: determining a target die from the dies; selecting multiple reference dies close to the target die based on the target die and a preset range; generating a main training data which includes a measured value of the target die and the measured value of each reference die; generating an auxiliary training data which indicates whether each reference die is a passed die or a failed die; and training the AI model using the main training data and the auxiliary training data.

Abstract: A pixel circuit includes a driving circuit, configured to drive a light-emitting element to emit light; a compensation control circuit, electrically connected to a first gate line and configured to control a control terminal of the driving circuit to be connected with a second terminal of the driving circuit under the control of a first gate drive signal provided by the first gate line; and a data writing circuit, electrically connected to a second gate line and configured to control a data voltage to be provided to a first terminal of the driving circuit under the control of a second gate drive signal provided by the second gate line. A voltage value of the first gate drive signal is substantially different from a voltage value of the second gate drive signal.

Abstract: A display panel is disclosed, which includes: a first substrate; a second substrate opposite to the first substrate; a liquid crystal layer disposed between the first and second substrate; a shielding pattern disposed on the second substrate and defining a first region and a second region, wherein a transmittance of the first region is larger than a transmittance of the second region; a first polymer layer disposed on a side of the first substrate facing to the second substrate; and a second polymer layer disposed on a side of the second substrate facing to the first substrate, wherein a roughness of a first area of the first polymer layer is different from a roughness of a second area of the second polymer layer, the second area overlaps with the first region, and the first area overlaps with a projection of the first region on the first polymer layer.

Abstract: A laser preheating control method is applied to a laser preheating control device. When a cutter processes a workpiece along a process path, a laser source of the device is provided to output a laser beam to the workpiece for selectively forming a laser spot on the workpiece surface. And according to a movement direction of the cutter, a laser controller of the device is provided to form the laser spot only on a preheating region of the workpiece, where in front of the cutter in the process path, for preheating the workpiece in the preheating region. As a result, the laser spot will not repeatedly heat the workpiece behind the cutter in the process path, and the qualitative change of the workpiece caused by repeating heating is preventable.

Abstract: A dual rail power supply system and a method for providing a first voltage and a second voltage to a load are presented. The power supply system draws a load current from the dual rail power supply system. The system has a first voltage rail for coupling to a first terminal of the load, a second voltage rail for coupling to a second terminal of the load, a first power converter to provide the first voltage at the first voltage rail, a second power converter to provide the second voltage at the second voltage rail, a third power converter comprising a first output coupled to the first voltage rail and a second output coupled to the second voltage rail. The third power converter generates a slave current and provides the slave current to the load such that the load current comprises the slave current, during a first mode.

Abstract: A multifunctional shaft apparatus includes a shaft base, a spindle, a tool holder, an ultrasonic vibration assembly, a laser light source and a mirror assembly. The spindle is disposed in the shaft base. The spindle has a laser channel extending along the spindle. The tool holder is disposed on the spindle. The tool holder has a hollow passage, an inner space and a recessed portion. The hollow passage is communicated with the laser channel. An inner wall of the hollow passage has at least one through hole communicated with the inner space, and the recessed portion is disposed on a bottom surface of the tool holder. The bottom surface has a light outlet. The ultrasonic vibration assembly includes a vibration member disposed in the recessed portion. The mirror assembly is disposed in the tool holder and is configured to reflect the laser light beam generated by the laser light source.

Abstract: A washing machine includes a breathing light group, a door body, a door hinge, a housing and a computer program controller. The breathing light group is arranged on the door body, and includes a plurality of breathing lights. The computer program controller is configured to change a quantity ratio of bright breathing lights to dimmed breathing lights among the breathing lights in the breathing light group according to a change of a working progress of the washing machine. The door body is connected to the housing via the door hinge. The door hinge has a passage through which a wire harness of the breathing light group penetrates. The wire harness penetrates through the housing through the passage and is connected to the computer program controller.

Abstract: An exposure system and a manufacturing method of a component of a display panel are disclosed. The exposure system includes a carrying device and a light source device. The carrying device carries the object. The light source device, including a plurality of lamp sets arranged along a first direction, emits light to irradiate the object. The lamp sets include a first lamp set and a second lamp set, which are disposed adjacent to each other. The first lamp set has a first lamp and a second lamp, which are extending along a second direction. The second lamp set has a third lamp and a fourth lamp, which are extending along the second direction. The first and second lamps are connected with a first junction, and the third and fourth lamps are connected with a second junction. The first junction and the second junction are misaligned on the first direction.

Abstract: A laser preheating control method is applied to a laser preheating control device. When a cutter processes a workpiece along a process path, a laser source of the device is provided to output a laser beam to the workpiece for selectively forming a laser spot on the workpiece surface. And according to a movement direction of the cutter, a laser controller of the device is provided to form the laser spot only on a preheating region of the workpiece, where in front of the cutter in the process path, for preheating the workpiece in the preheating region. As a result, the laser spot will not repeatedly heat the workpiece behind the cutter in the process path, and the qualitative change of the workpiece caused by repeating heating is preventable.

Abstract: A method for preparing a multi-element alloy compound is provided. The method includes the following steps: placing materials to be melted in a high-temperature synthesis zone of a vacuum container after being uniformly mixed, and placing materials to be sublimated in a low-temperature evaporation zone of the vacuum container; heating the materials to be melted in the high-temperature synthesis zone to a molten state to form a molten material; heating the materials to be sublimated in the low-temperature evaporation zone to a gaseous state to allow the sublimated gaseous material to react with the molten material. The prepared multi-element alloy compound, a method for preparing ink by adopting the multi-element alloy compound and the prepared multi-element alloy compound ink, as well as a method for preparing a film absorption layer by adopting the multi-element alloy compound ink and the prepared multi-element alloy compound film absorption layer are provided.

Abstract: A device for preparing a multi-element alloy compound includes a reactor, a low-temperature evaporation zone, a high-temperature synthesis zone, a sealing device and heating devices. The high-temperature synthesis zone and the low-temperature evaporation zone are respectively arranged at two ends of the reactor; the heating devices are arranged around the reactor at intervals and are configured to heat the reactor and form a temperature gradient; the reactor has an opening, and the sealing device is configured to be able to seal the opening.

Abstract: A display panel is disclosed, which includes: a first substrate; a second substrate opposite to the first substrate; a liquid crystal layer disposed between the first and second substrate; a shielding pattern disposed on the second substrate and defining a first region and a second region, wherein a transmittance of the first region is larger than a transmittance of the second region; a first polymer layer disposed on a side of the first substrate facing to the second substrate; and a second polymer layer disposed on a side of the second substrate facing to the first substrate, wherein a roughness of a first area of the first polymer layer is different from a roughness of a second area of the second polymer layer, the second area overlaps with the first region, and the first area overlaps with a projection of the first region on the first polymer layer.

Abstract: A display panel is disclosed, which comprises: a first substrate; a second substrate opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a shielding pattern disposed on the second substrate and comprising a first region and a second region, in which a transmittance of the first region is larger than that of the second region; and a first aggregation layer disposed on a side of the first substrate facing to the second substrate, wherein a roughness of the first aggregation layer corresponding to the first region of the shielding pattern is larger than that of the first aggregation layer corresponding to the second region thereof.

Abstract: A display device including a first substrate, a second substrate, a display medium, a color converting layer and a backlight module is provided. The display medium is disposed between the first substrate and the second substrate, and includes blue phase liquid crystal (BP-LC), polymer dispersed liquid crystal (PD-LC), self-assembled liquid crystal (SA-LC), dye doped nematic liquid crystal, dye doped cholesteric liquid crystal, dye doped blue phase liquid crystal, dye doped polymer dispersed liquid crystal or dye doped self-assembled liquid crystal. The color converting layer is disposed on the second substrate, and includes multiple quantum dots. The first substrate is disposed between the backlight module and the display medium.

Abstract: A washing machine includes a breathing light group, a door body, a door hinge, a housing and a computer program controller. The breathing light group is arranged on the door body, and includes a plurality of breathing lights. The computer program controller is configured to change a quantity ratio of bright breathing lights to dimmed breathing lights among the breathing lights in the breathing light group according to a change of a working progress of the washing machine. The door body is connected to the housing via the door hinge. The door hinge has a passage through which a wire harness of the breathing light group penetrates. The wire harness penetrates through the housing through the passage and is connected to the computer program controller.

Abstract: A display panel and a display device are provided. The display panel includes a first substrate having a display region and a non-display region, a second substrate disposed opposite to the first substrate, at least a data line and at least a scan line disposed in the display region, a liquid crystal layer, a plurality of spacers and a seal disposed between the first substrate and the second substrate, a light shielding layer disposed between the first substrate and the second substrate, and including a light transmitting portion and a light shielding portion, and an alignment layer and a plurality of particles disposed on the light transmitting portion and the light shielding portion. A first surface roughness corresponding to the light transmitting portion of the non-display region is greater than a second surface roughness corresponding to the light shielding portion of the non-display region.