Abstract: The present disclosure discloses an optical lens assembly. The optical lens assembly may include, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens may have negative refractive power, a convex object-side surface and a concave image-side surface. The fourth lens may have positive refractive power, a convex object-side surface and a convex image-side surface. The fifth lens may have positive refractive power, a convex object-side surface and a convex image-side surface. The sixth lens may have negative refractive power, a concave object-side surface and a concave image-side surface. The seventh lens may have positive refractive power and a convex object-side surface.

Abstract: The titanium-containing oxide slag, low-purity silicon and slagging fluxes are subject to reduction smelting together, and a bulk Si—Ti intermediate alloy is obtained by slag-metal separation; the obtained bulk Si—Ti intermediate alloy is crushed into Si—Ti intermediate alloy particles; and the obtained Si—Ti intermediate alloy particles are used as an anode, metallic molybdenum or metallic nickel as a cathode, metallic titanium as a reference electrode, and NaCl—KCl—NaF together with small amounts of Na3TiF6 or K3TiF6 as a molten salt, to carry out the electrolysis under a high-purity argon atmosphere at a temperature of 973 K. Ti in the Si—Ti intermediate alloy particles dissolved at the anode and deposited at the cathode, while Si in the Si—Ti intermediate alloy particles fell off from the anode as metallic silicon powder.

Abstract: Provided is a display substrate. The display substrate includes a base substrate, and a pixel unit disposed on the base substrate. The pixel unit includes a storage capacitor, the storage capacitor includes a first plate and a second plate facing each other, and a plate of the storage capacitor is a transparent plate. The pixel unit further includes an active layer and a source/drain pattern, which are disposed in two different layers.

Abstract: A pixel circuit, a display panel and a method for driving the pixel circuit. The pixel circuit includes a first light emission control module and a gate initialization module. The first light emission control module includes a control terminal, a first terminal and a second terminal, where the control terminal of the first light emission control module is electrically connected with a first light emission control signal, the first terminal of the first light emission control module is electrically connected with a first power signal, and the second terminal of the first light emission control module is electrically connected to the first electrode of the drive transistor.

Abstract: The invention discloses a powder leakage monitoring device and a powder leakage monitoring method. The powder leakage monitoring device comprises light field camera, 3D PTZ (3-Dimensional Pan/Tilt/Zoom) and computer. Wherein, the light field camera records original light field images of monitored area; the 3D PTZ under the light field camera adjusts the shooting angle of the light field camera when it rotates according to the set direction; and the computer respectively connects to the light field camera and the 3D PTZ, which generates refocused images corresponding to the original light field images, and determines the spatial coordinates of the powder leakage point and the hazard range of the powder leakage in the monitored area according to the refocused images and the shooting angle. Therefore, the range and accuracy of powder leakage monitoring are both increased by using this invention.

Abstract: The disclosure provides a display panel and a display device. The display panel includes a first substrate and a second substrate, the second substrate has an organic electroluminescent device, an anode layer of the organic electroluminescent device is away from the first substrate and a cathode layer thereof is closer to the first substrate than the anode layer; the cathode layer is electrically connected to an auxiliary electrode on a light entering surface of the first substrate through multiple conductive spacers, the cathode layer is a transparent electrode layer; the auxiliary electrode has a resistance smaller than that of the cathode layer of the organic electroluminescent device; the auxiliary electrode is a grid-shaped auxiliary electrode and in a non-display region, the auxiliary electrode is opaque; the multiple conductive spacers includes first conductive spacers on the auxiliary electrode and second conductive spacers on the cathode layer of the second substrate.

Abstract: At least one embodiment of the present disclosure provides an oxide thin film transistor, a display device, and a preparation method of the oxide thin film transistor, and the oxide thin film transistor includes a base substrate; an oxide semiconductor layer provided on the base substrate, and an insulating layer provided on a side of the oxide semiconductor layer away from the base substrate; in which the insulating layer is made of oxide; the insulating layer includes a first insulating layer and a second insulating layer which are stacked; a density of the second insulating layer is greater than a density of the first insulating layer; and the second insulating layer is farther away from the base substrate than the first insulating layer.

Abstract: Provided are a display substrate and a detection method therefor, and a display apparatus. Compensation sub-circuits that are in one-to-one correspondence with each stage of a shift register are arranged in a gate driving circuit, and a first capacitor in each compensation sub-circuit is thus charged under the control of a detection input circuit when each stage of the shift register outputs a signal stage by stage; and an output control circuit is used to disconnect the compensation sub-circuit from a pull-up node of the corresponding stage of the shift register. The triggering of each stage of the shift register is stopped after each stage of the shift register (CR(n)) completes outputting, and the output control circuit provides a signal of a first power voltage end to the pull-up node of the corresponding stage of the shift register under the control of a second control end and the first capacitor.

Abstract: An optical lens comprises: a first lens (L1) having a negative focal power; a second lens (L2); a third lens (L3); a fourth lens (L4); a fifth lens (L5), wherein the fourth lens (L4) and the fifth lens (L5) forms an achromatic lens group; and a sixth lens (L6), wherein the first lens (L1), the second lens (L2), the third lens (L3), the fourth lens (L4), the fifth lens (L5), and the sixth lens (L6) are sequentially disposed along a direction from an object side to an image side, wherein the first lens (L1) has at least one object surface (S1) facing the object side, and the object surface (S1) of the first lens (L1) is convex, and wherein the second lens (L2) has at least one image surface (S4) facing the image side, and the image surface (S4) of the second lens (L2) is convex so as to facilitate forming a concentric circle structure.

Abstract: A power module, including: a first conductor, disposed at a first reference plane; a second conductor, disposed at a second reference plane, wherein projections of the first and second conductors on the first reference plane have a first overlap area; a third conductor, disposed at a third reference plane; a plurality of first switches and a plurality of second switches, wherein at least one of the first switches and at least one of the second switches that are located on a left side are alternatively disposed, at least one of the first switches and at least one of the second switches that are located on a right side are alternately disposed, and the left side and the right side of the first overlap area are oppositely disposed. Heat sources of the power module are evenly distributed and its parasitic inductance is low.

Abstract: A method for preparing compound or biological drug enhancing CNPase activity for treating heart diseases. The chemical method relates to using kaurane compounds to up-regulating the expression and activity of CNPase. Biological therapeutic drugs related to the preparation of CNPase enzyme expressed by using recombinant adeno-associated virus and local interventional therapy. In a rat myocardial hypertrophy and heart failure model, the methods can effectively improve myocardial hypertrophy, myocardial remodeling, inhibit myocardial hypertrophy and fibrosis, and increase cardiac function.

Abstract: An optical lens and an electronic device comprising same. The optical lens sequentially comprises, from an object side to an image side along an optical axis: a first lens (L1) having a negative focal power, an object side surface (S1) of the first lens being concave; a second lens (L2) having a positive focal power, an object side surface (S3, S4) of the second lens being convex; a third lens (L3) having a positive focal power, an object side surface (S6) of the third lens being convex, and an image side surface (S7) of the third lens being convex; a fourth lens (L4) having a positive focal power, an object side surface (S8) of the fourth lens being convex; a fifth lens (L5) having a negative focal power, an image side surface (S10, S9) of the fifth lens being concave; a sixth lens (L6) having a focal power; and a seventh lens (L7) having a negative focal power, an image-side surface of the fifth lens being a concave surface.

Abstract: A lens assembly for an optical imaging lens is disclosed, which includes a first lens, wherein the first lens has a negative power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the sixth lens has a positive power, wherein the second lens and the third lens define a first cemented achromatic lens assembly, and the fourth lens and the fifth lens define a second cemented achromatic lens assembly, wherein the first lens, the first cemented achromatic lens assembly, the second cemented achromatic lens assembly and the sixth lens are orderly arranged along the direction from the object side to the image side.

Abstract: An OLED display substrate, a manufacturing method and a display device are provided. The OLED display substrate includes a base substrate and a plurality of pixel units arranged on the base substrate, each pixel unit includes a plurality of subpixel units, and each subpixel unit includes a switching TFT and a bottom-emission OLED, the OLED display substrate further includes a light-shielding layer arranged between the OLED and the switching TFT, and an orthogonal projection of the light-shielding layer onto the base substrate completely covers an orthogonal projection of a semiconductor region of the switching TFT onto the base substrate.

Abstract: Provided is a display substrate. The display substrate includes a base substrate, and a pixel unit disposed on the base substrate. The pixel unit includes a storage capacitor, the storage capacitor includes a first plate and a second plate facing each other, and a plate of the storage capacitor is a transparent plate. The pixel unit further includes an active layer and a source/drain pattern, which are disposed in two different layers.

Abstract: Disclosed by the present application are an optical lens and an electronic device comprising the optical lens. The optical lens comprises in succession from an object side to an image side along an optical axis: a first lens provided with a negative focal power, the image side surface of which is concave; a second lens provided with a focal power, the object side surface of which is concave and the image side surface of which is convex; a third lens provided with a positive focal power, the object side surface of which is convex and the image side surface of which is convex; a fourth lens provided with a focal power, the object side surface of which is convex; a fifth lens provided with a focal power, the image side surface of which is convex; and a sixth lens provided with a focal power.

Abstract: A method for manufacturing a thin film transistor, and a thin film transistor are provided. The method includes: forming an active layer on a substrate by a single patterning process; forming a gate insulating layer by deposition on a side of the active layer away from the substrate; forming a first via hole and a second via hole penetrating through the gate insulating layer by a single patterning process, the first and second via holes being located at two ends of the active layer respectively; and forming a first electrode, a gate electrode, and a second electrode on the gate insulating layer by a single patterning process, the first and second electrodes being connected to the active layer through the first and second via holes, respectively, and an orthographic projection of the gate electrode on the substrate at least partially overlapping that of the active layer on the substrate.

Abstract: An OLED display substrate, a manufacturing method and a display device are provided. The OLED display substrate includes a base substrate and a plurality of pixel units arranged on the base substrate, each pixel unit includes a plurality of subpixel units, and each subpixel unit includes a switching TFT and a bottom-emission OLED, the OLED display substrate further includes a light-shielding layer arranged between the OLED and the switching TFT, and an orthogonal projection of the light-shielding layer onto the base substrate completely covers an orthogonal projection of a semiconductor region of the switching TFT onto the base substrate.

Abstract: An optical lens assembly and an electronic device are provided. From an object side to an image side along an optical axis, the optical lens sequentially comprises: a first lens (L1) having a negative refractive power, wherein the object-side surface (S1) of the first lens is a convex surface, and the image-side surface (S2) of the first lens is a concave surface; a second lens (L2) having refractive power, wherein the object-side surface (S3) of the second lens is a concave surface, and the image-side surface (S4) of the second lens is a convex surface; a third lens (L3) having positive refractive power; a fourth lens (L4) having refractive power, wherein the object-side surface (S8) of the fourth lens is a convex surface; a fifth lens (L5) having refractive power; and a sixth lens (L6) having refractive power.

Abstract: The present disclosure discloses an optical lens assembly and an imaging device including the same. The optical lens assembly includes seven lenses, wherein a first lens has a negative refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a second lens has a negative refractive power, and an image-side surface thereof is a concave surface; a third lens has a negative refractive power; a fourth lens has a positive refractive power, and an object-side surface thereof is a convex surface; an object-side surface of a fifth lens is a convex surface; a seventh lens has a positive refractive power, and an object-side surface thereof is a convex surface; and the fifth lens and the sixth lens are cemented to form a cemented lens.