Abstract: Provided are a neodymium-iron-boron magnet material, raw material composition, preparation method, and application. The raw material composition of the neodymium-iron-boron magnet material comprises the following mass content components: R: 28-33%; R is a rare earth element, R comprises R1 and R2; R1 is a rare earth element added during smelting, and R1 comprises Nd and Dy; R2 is a rare earth element added during grain boundary diffusion, R2 comprises Tb, the content of R2 is 0.2%-1%; Co: <0.5%, but not 0; M: ?0.4%, but not 0, and M is one or more of Bi, Sn, Zn, Ga, In, Au, and Pb; Cu: ?0.15%, but not 0; B: 0.9-1.1%; Fe: 60-70%; the percentage is the mass percentage of the mass of each component to the total mass of the raw material composition. The neodymium-iron-boron magnet material has high remanence, coercivity, and good thermal stability.

Abstract: Disclosed are a neodymium-iron-boron magnet material, a raw material composition, a preparation method therefor and a use thereof. The raw material composition of the neodymium-iron-boron magnet material comprises the following components in weight content: R: 28-33%; R being rare earth elements, and comprising R1 and R2, R1 being a rare earth element added during smelting, R1 comprising Nd and Dy, R2 being a rare earth element added during grain boundary diffusion, R2 comprising Tb, and the content of R2 being 0.2-1%; M: ?0.4% but not 0, M being one or more elements among Bi, Sn, Zn, Ga, In, Au and Pb; Cu: ?0.15% but not 0; B: 0.9-1.1%; Fe: 60-70%; but not containing Co. The neodymium-iron-boron magnet material under the condition of adding a small amount of heavy rare earth elements and not adding cobalt, can still have a relatively high coercivity and remanence, and excellent thermal stability.

Abstract: The present disclosure provides an OLED display substrate, a fabricating method thereof and a display device. The OLED display substrate includes a substrate; an inorganic layer and a light-emitting unit on substrate, light-emitting unit being on a side of inorganic layer away from substrate and including a light-emitting structure; a camera on a side of substrate away from inorganic layer, and light-emitting unit being not in orthographic projection region; a protective layer in orthographic projection region and on side of inorganic layer away from substrate, wherein protective layer is configured to protect inorganic layer in orthographic projection region from warping or cracking in a process of removing part of light-emitting structure in orthographic projection region by laser cutting.

Abstract: A display panel has a display region and a bezel region located on a periphery of the display region, and the display region includes a first region and a second region. The display panel includes a plurality of pixel driving circuits located in the first region and a plurality of pixel driving circuits located in the second region. A density of the pixel driving circuits in the first region is less than a density of the pixel driving circuits in the second region.

Abstract: A touch panel and a manufacturing method thereof, and a display device. An insulation layer (4) positioned between a substrate (1) and a polarizer (3) is configured to comprise a silicon nitride layer (41) and a barrier layer (42) positioned at one side of the silicon nitride layer (41) away from the substrate (1). The barrier layer (42) can serve as a covering layer that stops an ammonia gas escaped from the silicon nitride layer (41) from moving to the polarizer (3) so as to prevent fading of the polarizer. The insulation layer (4) is configured to comprise two thin layers, namely a silicon nitride layer (41) and a barrier layer (42).

Abstract: The disclosure relates to a pixel circuit and a testing method of the pixel circuit. The pixel circuit comprises a light emitting element, a storage capacitor Cst, a drive sub-circuit, a reset sub-circuit, a write sub-circuit, a light emission control sub-circuit and a testing element, wherein a control terminal of the testing element is connected to s reset control signal line, a first terminal of the testing element is connected to a reset signal line, a second terminal of the testing element is connected to the drive sub-circuit, and the testing element is configured to test elements included in the pixel circuit.

Abstract: A display panel includes a base, a plurality of sub-pixels and a plurality of gate control lines that are disposed on the base. Each sub-pixel includes a pixel circuit. The pixel circuit includes a driving transistor and at least one first switching transistor electrically connected to a control electrode of the driving transistor. Each pixel circuit is electrically connected to at least two gate control lines. A first switching transistor includes an active layer. The active layer includes an active layer body and at least one extension portion, and the active layer body includes at least one channel portion and at least one conductive portion. An extension portion is electrically connected to a conductive portion of the active layer body. At least a portion of an orthogonal projection of the extension portion on the base is overlapped with an orthogonal projection of a gate control line on the base.

Abstract: A driving backplane includes: a base; a first conductive layer disposed on the base, the first conductive layer including at least one first signal line; a first insulating layer disposed on a side of the first conductive layer away from the base; a second conductive layer disposed on a side of the first insulating layer away from the first conductive layer, the second conductive layer including at least one second signal line. Each first signal line and a second signal line constitute a signal line pair. In the signal line pair, extending directions of the first signal line and the second signal line are the same, an orthogonal projection of the first signal line on the base and an orthogonal projection of the second signal line on the base have a first overlapping region, and the second signal line is coupled to the first signal line.

Abstract: An R-T-B series permanent magnet material, a raw material composition, a preparation method, and an application. The R-T-B series permanent magnet material comprises the following components: R: 29-31.0 wt. %, RH is greater than 1 wt. %, B: 0.905-0.945 wt. %, C: 0.04-0.15 wt. %, N: 0.1-0.4 wt. %, and Fe: 67-69 wt. %, wherein R comprises RL and RH, RL is a light rare earth element, RL comprises Nd, RH is a heavy rare earth element, a (RL1-yRHy)2T17Cx phase is present at the grain boundary of the R-T-B series permanent magnet material, x: 2-3, y: 0.15-0.35, and T must comprise Fe, and also comprises one or more among Co, Ti and N. The permanent magnet material retains relative high Br and Hcj under different heat treatment temperatures.

Abstract: Disclosed in the present invention is an R—Fe—B sintered magnet and grain boundary diffusion treatment method. The R—Fe—B sintered magnet is obtained by performing HR grain boundary diffusion treatment on an R—Fe—B sintered green body, wherein the green body at least comprises 28 wt %-33 wt % of R, which is at least one rare earth element including Nd; 0.83 wt %-0.96 wt % of B; and 0.3 wt %-1.2 wt % of M. A grain boundary diffusion direction is perpendicular to a magnetization direction, and in the diffusion direction, the ratio of HR contents of any two points spaced from the diffusion plane by a distance of no more than 500 ?m is 0.1-1.0. Grain boundary diffusion of a diffusion source is performed in a direction perpendicular to c axis, so that local demagnetization is efficiently controlled, a diffusion effect is enhanced, a manufacturing procedure is simplified, and deformation factors are eliminated.

Abstract: An array substrate and a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate; a plurality of gate lines on a side of the base substrate; a plurality of data lines on a side of the plurality of gate lines away from the base substrate and intersecting with the plurality of gate lines; and a plurality of light shielding metal portions between the base substrate and each of the plurality of gate lines; respective one of the gate lines includes a plurality of gate line sub-segments separated by the plurality of data lines, respectively, every two adjacent gate line sub-segments in the respective one of the gate lines correspond to one of the light shielding metal portions, and the every two adjacent gate line sub-segments are connected in series through the one of the light shielding metal portions.

Abstract: The present disclosure provides a light emitting device and a manufacturing method thereof, a display panel and a display apparatus. The light emitting device includes a substrate; a light emitting element on the substrate; and a light coupling layer on a light emitting side of the light emitting element, wherein a thickness of the light coupling layer gradually decreases in a direction from a central region of the light emitting device toward an edge region of the light emitting device.

Abstract: A touch substrate and a manufacturing method thereof, and an in-cell touch panel. The touch substrate includes: a base substrate, a first insulation layer, a transmission line and a common electrode. The first insulation layer is on the base substrate, and a groove extending in a first direction is in the first insulation layer; the transmission line is in the groove and is configured to transmit an electrical signal; the common electrode overlaps with the transmission line and is electrically connected with the transmission line.

Abstract: An array substrate, a method for fabricating the same, and a display device are provided. The array substrate includes: a base substrate; touch electrode wiring including a first conductive layer and a second conductive layer, where the first conductive layer is between the base substrate and the second conductive layer, the second conductive layer includes at least one first via hole to expose the first conductive layer, and the first conductive layer has a higher electrical conductivity than that of the second conductive layer; a planarization layer on the second conductive layer, where the planarization layer includes at least one first touch electrode contact hole; and touch electrode on the planarization layer, where the touch electrode is connected with the first conductive layer through the first touch electrode contact hole and the first via hole.

Abstract: An array substrate, its fabricating method, a display panel and a display device are disclosed. The method includes forming an active layer on a substrate, forming a gate layer on a side of the active layer facing or away from the substrate; forming an interlayer dielectric layer on a side of the active layer away from the substrate, which includes a first, second, third and fourth film stacked in this order in a direction away from the substrate; forming a via hole extending from the interlayer dielectric layer to the active layer; forming a source and drain layer on a side of the interlayer dielectric layer away from the substrate, and in a region not covered by the source and drain layer, removing the fourth film in the interlayer dielectric layer at a same time as forming the source and drain layer.

Abstract: A signal line capacitance compensation circuit and a display panel are provided, a signal line capacitance compensation circuit includes: a plurality of signal lines; at least one control line, a compensation capacitor being provided between the control line and at least one of the plurality of signal lines; and a signal source configured to send a charging signal to one or more control lines of the at least one control line, the charging signal being used to charge the compensation capacitor between the one or more control lines receiving the charging signal and the at least one signal line.

Abstract: An organic light-emitting display panel is provided. The organic light-emitting display panel includes a substrate and a plurality of pixel units disposed on a side of the substrate, wherein the pixel unit includes an organic light-emitting diode (OLED); the substrate has a first pixel density area and a second pixel density area, and a density of pixel units in the first pixel density area is greater than that of pixel units in the second pixel density area; and in the second pixel density area, a light-emitting surface of the OLED protrudes along a light-emitting direction of the OLED.

Abstract: The disclosure relates to a pixel circuit and a testing method of the pixel circuit. The pixel circuit comprises a light emitting element, a storage capacitor Cst, a drive sub-circuit, a reset sub-circuit, a write sub-circuit, a light emission control sub-circuit and a testing element, wherein a control terminal of the testing element is connected to s reset control signal line, a first terminal of the testing element is connected to a reset signal line, a second terminal of the testing element is connected to the drive sub-circuit, and the testing element is configured to test elements included in the pixel circuit.

Abstract: A multivariate parameter adaptation approach is disclosed for long-term use of an artificial pancreas using a dual-layer control scheme. The adaptation problem, which can be treated as an optimization problem with an unknown objective function and constraints, may be solved by the proposed BO-assisted multivariate optimization approach. Results showed that the algorithm was able to identify the improperly tuned parameters and smoothly adjust them for improved glucose regulation, despite lifestyle disturbances.

Abstract: An array substrate is provided. The array substrate includes a base, a first electrode and a second electrode which are on the base and a touch line on the base, both the first electrode and the second electrode are configured to transmit a display signal, the touch line is configured to transmit a touch signal; the first electrode and the touch line are respectively in different layers, and an orthographic projection of the first electrode on the base at least partially overlaps with an orthographic projection of the touch line on the base. A preparation method of the array substrate and a touch display panel are further provided.