Abstract: A display device is provided, and the display device includes a display panel and a light adjusting portion. The light adjusting portion is stacked with the display panel, the light adjusting portion includes a first substrate, a refractive index variable material layer, an electrode structure, and a second substrate stacked with each other, and the refractive index variable material layer and the electrode structure are between the first substrate and the second substrate. The light adjusting portion further includes a plurality of signal lines, and the electrode structure and the plurality of signal lines are on the first substrate; the electrode structure includes a first electrode structure and a second electrode structure, the first electrode structure includes a plurality of first electrodes insulated from each other, the first substrate includes a plurality of regions, and first electrodes in different regions are configured to be electrically connected to different signal lines.

Abstract: Provided are a method and molten salt system for recovering rare earth elements from NdFeB waste and use of ferric oxide as a raw material of a manganese-zinc ferrite. The molten salt system comprising the following components in percentage by weight: 40% of K3AlF6 or Na3AlF6, 40% of KBe2F5, and 20% of KAlF4. By adopting the three-component molten salt system of the present invention, recovery rates of rare earth elements extracted from NdFeB waste all can reach 98% or above. By adopting the three-component molten salt system, extraction temperature is 100-400° C. lower than that of all current similar halogenation methods, and extraction time is fold shorted to 1-3 h. The reduction of the extraction temperature and the shortening of the melting time greatly reduce the energy consumption of extracting rare earth elements from NdFeB waste, and the economic benefits are remarkable.

Abstract: Provided is a method for preparing a soft magnetic manganese-zinc ferrite composite by removing impurities from industrial waste step by step. Manganese-containing waste residue is crushed and dried, and then mixed with a flux in a muffle furnace and roasted at a temperature below 1000° C. till solid-liquid stratification; then, multi-step impurity removal is performed to obtain a high-purity quaternary purification solution of manganese sulfate. Similarly, zinc residue is melted to remove impurities, and then multi-step impurity removal is performed to obtain a high-purity quaternary purification solution of zinc sulfate. According to a manganese-zinc-iron ratio required for the manganese-zinc ferrite, the two purification solutions are mixed, and ferrous sulfate is added.

Abstract: Provided are a method and molten salt system for recovering rare earth elements from NdFeB waste and use of ferric oxide as a raw material of a manganese-zinc ferrite. The molten salt system comprising the following components in percentage by weight: 40% of K3AlF6 or Na3AlF6, 40% of KBe2F5, and 20% of KAlF4. By adopting the three-component molten salt system of the present invention, recovery rates of rare earth elements extracted from NdFeB waste all can reach 98% or above. By adopting the three-component molten salt system, extraction temperature is 100-400° C. lower than that of all current similar halogenation methods, and extraction time is fold shorted to 1-3 h. The reduction of the extraction temperature and the shortening of the melting time greatly reduce the energy consumption of extracting rare earth elements from NdFeB waste, and the economic benefits are remarkable.

Abstract: The technology of this application relates to a high electron mobility transistor including a GaN substrate layer, a barrier layer, a circuit layer, and a field plate that are sequentially stacked. The GaN substrate layer includes a main body layer and a channel layer that are stacked, the channel layer is adjacent to the barrier layer, the circuit layer includes a source, a drain, and a dielectric layer, the dielectric layer is disposed between the source and the drain, the field plate is disposed on a side that is of the dielectric layer and that is away from the barrier layer, an orthographic projection of the field plate on the channel layer is a field plate projection, the channel layer includes a modulation region and a non-modulation region, the non-modulation region surrounds the modulation region, the modulation region and the field plate projection at least partially overlap.

Abstract: A method for synchronous production of manganese tetraoxide and ferric oxide for a soft magnetic material by using marine polymetallic nodules includes: 1) crushing and grinding marine manganese nodules and baking to a constant weight; thoroughly mixing with a mixed flux and roasting in a muffle furnace; 2) carrying out solid-liquid separation, washing solid-phase precipitates with water, grinding the solid, adding sulfuric acid, controlling the temperature to be below 50° C., and vacuuming a reactor up; 3) adding a reducing agent to react at room temperature for 5-10 min, adding ammonia water to adjust the pH value to 5.5, and carrying out separation and filtering; 4) controlling the temperatures of manganese sulfate and ferric sulfate solutions to be below 50° C., and adding ammonium sulfide; and 5) washing with deionized water, and calcining at 800-900° C. for 1-3 s by a suspension low-temperature instantaneous firing system.

Abstract: A semiconductor device includes a substrate, a gate, a second dielectric layer, and a field plate. The substrate has a first dielectric layer, and a thickness of the first dielectric layer in a first area is greater than a thickness of the first dielectric layer in a second area outside the first area. The gate is located on the substrate and in the first area, the gate includes a first gate structure and a second gate structure, and the second gate structure is formed on a side of the first dielectric layer that is away from the substrate and covers a part of the first dielectric layer. The second dielectric layer covers the gate and the first dielectric layer. The field plate is located on the second dielectric layer and is disposed in both the first area and the second area.

Abstract: The present disclosure provides a display device including a display panel, a pair of supporting components, a rotating component, a first fixing part and a second fixing part. The display panel comprises: a first side and a second side which are opposite to each other, and the first side is fixedly connected to the first fixing part, and the second side is fixedly connected to the second fixing part. The pair of supporting components comprises: a first supporting component and a second supporting component which are opposite to each other. A first end of the first supporting component is fixedly connected to a first end of the rotating component, and a second end of the first supporting component is fixedly connected to a first end of the second fixing part at the second side of the display panel.

Abstract: A pixel driving circuit, an organic light emitting display panel and a pixel driving method. The pixel driving circuit includes: a switching sub-circuit, a driving sub-circuit, a storage capacitor and a charge eliminating sub-circuit; the charge eliminating sub-circuit has a control terminal connected to a first scanning signal line, and other terminals connected to the first terminal of the driving sub-circuit, a cathode of the organic light emitting element (OLED) and a reference voltage terminal respectively, and can enable a potential between the anode and the cathode of the organic light emitting element to be reversed under control of the first scanning signal line.

Abstract: An array substrate, a manufacturing method thereof, and a display device are disclosed. The array substrate includes: a base substrate; a gate line located on the base substrate and extending in a first direction; a data line located on the base substrate and extending in a second direction; the gate line and the data line crossing each other to define an orthographic projection of a pixel region on the base substrate; an organic film located on the gate line and the data line and located in the pixel region; and a pixel electrode located on the organic film in the pixel region. The organic film located directly above the data line has a first thickness, the organic film located directly below the pixel electrode has a second thickness, and the first thickness is greater than the second thickness.

Abstract: A pixel driving circuit, an organic light emitting display panel and a pixel driving method. The pixel driving circuit includes: a switching sub-circuit, a driving sub-circuit, a storage capacitor and a charge eliminating sub-circuit; the charge eliminating sub-circuit has a control terminal connected to a first scanning signal line, and other terminals connected to the first terminal of the driving sub-circuit, a cathode of the organic light emitting element (OLED) and a reference voltage terminal respectively, and can enable a potential between the anode and the cathode of the organic light emitting element to be reversed under control of the first scanning signal line.

Abstract: A display substrate, a display module and a method for driving the display module, and a display apparatus are provided. The display substrate includes a plurality of pixel units. At least one pixel unit includes: a first sub-pixel; a color-changing layer covering a part of a light-emitting surface of the first sub-pixel, the color-changing layer being able to be switched between a first state and a second state, and the color-changing layer being configured to enable a first wavelength light emitted by the first sub-pixel to pass through the color-changing layer in the first state; and a light-emitting layer located on a side of the color-changing layer that is away from the first sub-pixel, and configured to emit a second wavelength light under excitation of the first wavelength light. The second wavelength light is an invisible light.

Abstract: A touch display panel, a test method thereof and a display device are provided. The touch display panel includes: a base substrate, a plurality of touch electrodes in an array provided in a touch area of the base substrate, at least four test signal lines in a non-touch area of the base substrate, and a plurality of touch traces of connecting the touch electrodes and corresponding test signal lines. Each touch electrode and peripheral touch electrodes correspond to different test signal lines. The peripheral touch electrodes refer to other touch electrodes adjacent to one touch electrode and arranged along the row direction, the column direction and the diagonal direction.

Abstract: An array substrate, a manufacturing method thereof, and a display device are disclosed. The array substrate includes: a base substrate; a gate line located on the base substrate and extending in a first direction; a data line located on the base substrate and extending in a second direction; the gate line and the data line crossing each other to define an orthographic projection of a pixel region on the base substrate; an organic film located on the gate line and the data line and located in the pixel region; and a pixel electrode located on the organic film in the pixel region. The organic film located directly above the data line has a first thickness, the organic film located directly below the pixel electrode has a second thickness, and the first thickness is greater than the second thickness.

Abstract: Embodiments of the present disclosure provide an array substrate, a method for fabricating the same, and a display panel. The array substrate comprises a substrate, first signal lines and touch electrode signal lines the substrate. The touch electrode signal lines intersect with the first signal lines. Each of the touch electrode signal lines includes a plurality of first sub-signal lines and a plurality of second sub-signal lines. The first sub-signal lines are arranged in a same layer as and insulated from the first signal line. Each of the second sub-signal lines run across one of the first signal lines and are electrically connected with the first sub-signal lines adjacent to said second sub-signal line through vias. The first sub-signal lines are arranged in a layer different from the second sub-signal lines.

Abstract: The present invention provides a display substrate and a manufacturing method thereof, and a display device. The display substrate comprises a base substrate, and gate lines, data lines, a gate driving circuit and a source driving circuit on the base substrate, the gate lines and the data lines define pixel units, the pixel unit comprises a thin film transistor and a pixel electrode, the data lines are connected to the source driving circuit, the display substrate further comprising gate line connection wires on the base substrate, the gate lines are connected to the gate driving circuit through the gate line connection wires, the gate driving circuit and the source driving circuit are located at edge positions on the base substrate in an extending direction of the data lines, and they are opposite to each other. The widths of the bezel in the extending direction of the gate lines are reduced.

Abstract: Provided are a pixel circuit and driving method thereof, array substrate and display device. The pixel circuit includes a light-emitting element, a driving sub-circuit, a scanning sub-circuit, and a carrier releasing sub-circuit. The driving sub-circuit is connected to a first electrode of light-emitting element, and the driving sub-circuit is configured to store a driving voltage and control the magnitude of a current passing through light-emitting element according to the driving voltage; the scanning sub-circuit is connected to driving sub-circuit.

Abstract: The present disclosure provides a display device including a display panel, a pair of supporting components, a rotating component, a first fixing part and a second fixing part. The display panel comprises: a first side and a second side which are opposite to each other, and the first side is fixedly connected to the first fixing part, and the second side is fixedly connected to the second fixing part. The pair of supporting components comprises: a first supporting component and a second supporting component which are opposite to each other. A first end of the first supporting component is fixedly connected to a first end of the rotating component, and a second end of the first supporting component is fixedly connected to a first end of the second fixing part at the second side of the display panel.

Abstract: Embodiments of the present disclosure provide an array substrate, a method for fabricating the same, and a display panel. The array substrate comprises a substrate, first signal lines and touch electrode signal lines the substrate. The touch electrode signal lines intersect with the first signal lines. Each of the touch electrode signal lines includes a plurality of first sub-signal lines and a plurality of second sub-signal lines. The first sub-signal lines are arranged in a same layer as and insulated from the first signal line. Each of the second sub-signal lines run across one of the first signal lines and are electrically connected with the first sub-signal lines adjacent to said second sub-signal line through vias. The first sub-signal lines are arranged in a layer different from the second sub-signal lines.

Abstract: An array substrate, manufacturing method thereof, and display device. The array substrate comprises a subpixel unit, and the subpixel unit comprises: a first transparent common electrode a pixel electrode disposed over and insulated from the first transparent common electrode, wherein an orthographic projection of the first transparent common electrode on a surface where the pixel electrode is located has an overlapping portion with the pixel electrode; and a second transparent common electrode disposed over and insulated from the pixel electrode.