Abstract: Disclosed are a display panel and a display device. The display panel is provided with an display region and a peripheral region, and includes a display substrate and at least one alignment mark disposed in the peripheral region. The display substrate is sequentially provided with a first packaging layer, a light-shielding layer, and a second packaging layer at a side, distal to the base substrate, of a second electrode layer. The light-shielding layer is provided with an opening hole, and a distance between a medial edge of the opening hole and a first end of the light-shielding layer is greater than a distance between a lateral edge of the opening hole and a second end of the light-shielding layer.

Abstract: A display substrate and a display apparatus are provided.

Abstract: An acceleration sensor, including a base; anchor point; an inner side supporting unit, a middle part of which is fixed to the base through the anchor point, a first seesaw unit elastically connected to an outer side of a first end of the inner side supporting unit; a second seesaw unit elastically connected to an outer side of a second end of the inner side supporting unit; and an out-of-plane displacement detection unit. Each of the first seesaw unit and the second seesaw unit is symmetrically distributed about a symmetry axis of the acceleration sensor. The first seesaw unit includes two first seesaw structures at two sides of the symmetry axis and the second seesaw unit includes two second seesaw structures at two sides of the symmetry axis. An influence of Y-axis angular acceleration on the acceleration sensor is greatly reduced and a cross inhibition ratio thereof is improved.

Abstract: Provided is an acceleration sensor, including a base; a first anchor point fixed to a middle part of the base; an inner side mass unit surrounding an outer side of the first anchor point, an outer side mass unit surrounding an outer side of the inner side mass unit, a first seesaw unit and a second seesaw unit arranged opposite to each other to define an annular structure surrounding an outer side of the outer side mass unit, a first acceleration detection unit and a second acceleration detection unit. Part of the first acceleration detection unit is arranged at the annular structure to detect acceleration in an out-of-plane Z-axis direction, the second acceleration detection unit is arranged at the outer side mass unit to detect acceleration in an in-plane X-axis direction and in an in-plane Y-axis direction. A design thereof is reasonable and the sensitivity is high.

Abstract: An acceleration sensor, including a first acceleration detection unit configured to detect acceleration in an out-of-plane Z-axis direction, a second acceleration detection unit configured to detect acceleration in an in-plane X-axis direction and/or an in-plane Y-axis direction, a base, a connecting arm, a first anchor point, a first elastic member and a second elastic member. The first acceleration detection unit includes a first seesaw unit and a second seesaw unit arranged opposite to each other to define an annular structure. The annular structure surrounds an outer side of the second acceleration detection unit. The first anchor point is located at a middle part of the substrate, and the connection arm is fixed to the substrate through the first anchor point. The connection arm is located between the first acceleration detection unit and the second acceleration detection unit. A structure design thereof is reasonable and the anti-interference capability is great.

Abstract: Provided is a fully decoupled MEMS gyroscope, including a base, a sensing unit elastically connected to the base, and a driving unit coupled with the sensing unit and driving the sensing unit to move. The base includes a coupling anchor point located at a center of a rectangle and a coupling structure elastically connected to the coupling anchor point. The driving unit includes four driving members located at inner positions of four corners of the rectangle. The sensing unit includes two X mass blocks symmetrically arranged in two of the avoiding intervals, two Y mass blocks symmetrically arranged in the other two of the avoiding intervals, four Z mass blocks elastically connected to the adjacent driving members and located at the four corners of the rectangle, and four Z detection decoupling members elastically connected to the adjacent Z mass blocks and elastically connected to each other around the rectangle.

Abstract: A three-axis MEMS gyroscope includes a substrate, a sensing unit connected with the substrate, and a driving unit driving the sensing unit to move. The substrate includes anchor point structures and coupling structures connected with the anchor point structures. The driving unit includes driving pieces. One ends of each of the driving pieces are elastically connected with an adjacent coupling structure. The sensing unit includes X and Y mass blocks and Z mass blocks. Each of the X and Y mass blocks is arranged in a corresponding avoiding space. The X and Y mass blocks are respectively connected with adjacent coupling structures to form a rectangular frame. The Z mass blocks are connected with the driving pieces and separately arranged on one side of each driving piece away from each anchor point structure. The three-axis MEMS gyroscope is differentially driven, which realizes differential detection and reduces quadrature error.

Abstract: Disclosed are a display substrate and preparation method thereof, and a display device. The display substrate includes a display area (100) and a bonding area (200). On a plane perpendicular to the display substrate, the bonding area (200) includes a base substrate (10), a bonding structure layer (70) disposed on the base substrate (10), and a bonding pad (80) disposed on the bonding structure layer (70). The bonding pad (80) is configured to be bonded to connect to a circuit board; and at least includes a first bonding pad layer (210) and a second bonding pad layer (220), the first bonding pad layer (210) is disposed on a side of the second bonding pad layer (220) away from the base substrate (10), at least one first concave-convex structure (310) is disposed on a surface of a side of the first bonding pad layer (210) away from the base substrate (10).

Abstract: The invention discloses a MEMS gyroscope, including a substrate, a first unit and a second unit, and the first unit and the second unit are relatively arranged on the substrate along the first direction. The first unit is connected to the second unit through a coupling spring, and the substrate is also provided with a driving electrode and a detection electrode. The first unit includes a first weight and a second weight. The second unit includes the third weight and the fourth weight set oppositely along the second direction. The second set of coupling structures are connected to the third weight and fourth weight. Compared with the prior art, the beneficial effect of the present invention is that the MEMS gyroscope adopts a symmetrical layout, which facilitates the realization of differential detection and improves the sensitivity.

Abstract: The present invention relates to the technical field of medicinal chemistry, and particularly to a method for preparing a 3-tetrazolylmethyl-1,3,5-triazin-2,4-dione compound inhibiting coronavirus 3CL protease activity and use thereof. Specifically, a compound of Formula I, or a pharmaceutically acceptable salt, or an optical isomer, or an isotope-substituted form thereof is provided. The compound effectively inhibits the SARS-CoV-2 3CLpro activity, and is useful in the preparation of a SARS-CoV-2 3CLpro inhibitor to block the replication and transcription of SARS-CoV-2 viruses in patients. The compound prepared in the present invention has high in-vitro safety, and very good prospect of application in the preparation of SARS-CoV-2 3CLpro inhibitors and anti-SARS-CoV-2 drugs.

Abstract: Provided is a fully decoupled MEMS gyroscope, including an anchor point unit, a sensing unit elastically connected to the anchor point unit, and a driving unit configured to drive the sensing unit to move. The anchor point unit includes a center anchor point subunit located at a center of a rectangle and four side anchor points. The driving unit includes four driving members located on four sides of the rectangle. The sensing unit includes two X mass blocks symmetrically arranged in two avoiding intervals, two Y mass blocks symmetrically arranged in the other two avoiding intervals, four Z mass blocks respectively located at an outer side of each driving member, and four Z detection decoupling members respectively located at an outer side of each Z mass block. The X mass blocks and the Y mass blocks are respectively connected to each side anchor point.

Abstract: A method of preparing a Polygoni Milletii Rhizome tincture includes: preparing a first mixture; extracting the first mixture with 70-90% ethanol under reflux condition to obtain a first extract solution; preparing a second mixture; extracting the second mixture with 50-70% ethanol to obtain a second extract solution; and mixing the first extract solution with the second extract solution to obtain the polygoni milletii rhizome tincture. A method of preparing a Polygoni Milletii Rhizome poultice includes: reparing a Polygoni Milletii Rhizome mixture; mixing the Polygoni Milletii Rhizome mixture and a skin penetration enhancer in water; mixing a moisturizing agent and a binder in water; adding a thickener in water; mixing methylparaben and ethylparaben in 90% ethanol; mixing all solutions to form a mixture; and applying the mixture on a non-woven fabric cloth and drying to form the Polygoni Milletii Rhizome poultice.

Abstract: A micromachined gyroscope and an electronic product are provided. The micromachined gyroscope includes a driving component, a detecting component, first connecting components, and second connecting components. The driving component includes first driving pieces, second driving pieces, and driving devices driving the first driving pieces and the second driving piece to move. The detecting component includes first detecting pieces arranged along a third direction, second detecting pieces arranged along a fourth direction, and detecting devices for detecting movement distances of the first detecting pieces and/or the second detecting pieces along a fifth direction. Each of the first connecting pieces and the second connecting pieces rotates around a center thereof, so the second detecting pieces and the first detecting pieces respectively reciprocate along the third direction and the fourth direction.

Abstract: Provided are a micromechanical gyroscope and an electronic product. The micromechanical gyroscope includes a first mass, a plurality of second masses, a plurality of first flexible beams and a plurality of second flexible beams. The first mass is provided with a mounting area, the plurality of second masses are distributed in a first direction, and the plurality of drivers are distributed in first direction and disposed on two opposite sides of the plurality of second masses in first direction. The plurality of drivers and the plurality of second masses are all located within the mounting area, and the first mass surrounds outer sides of the plurality of drivers and outer sides of the plurality of second masses. With the micromechanical gyroscope and the electronic product, the coriolis conversion rate of the first mass 1 can be improved, and the utilization of a chip area can be maximized.

Abstract: A MEMS gyroscope for three-axis detection relates to the technical field of gyroscope and includes a substrate, a sensing unit elastically connected with the substrate, and a driving unit coupled with the sensing unit and driving the sensing unit to move. The substrate includes anchor point structures respectively located at four corners of the substrate and four coupling structures respectively elastically connected with the four anchor point structures. An avoiding space is formed between two adjacent coupling structures. The driving unit includes two driving pieces separately elastically connected with adjacent coupling structures. The two driving pieces are symmetrically arranged and are frame-shaped. The sensing unit includes four X and Y mass blocks, two Z mass blocks elastically connected with the driving pieces, and two decoupling mass blocks. The two decoupling mass blocks are elastically connected.

Abstract: The present invention relates to an accelerometer, which comprises a substrate and detecting devices. The substrate is provided with supporting anchor points and electrode fixing anchor points; the detecting device comprises two detecting plates and corresponding detecting electrodes, and the detecting electrodes are connected to the electrode fixing anchor points through connecting arms; the detecting plate is elastically connected to the supporting anchor point, the two detecting plates are asymmetrically arranged with respect to axes of the supporting anchor points, and the two detecting plates are parallel to each other and in opposite directions; and the detecting electrodes and the detecting plates are arranged at intervals to form a detecting capacitor.

Abstract: A micromechanical gyroscope and an electronic device are related. The micromechanical gyroscope includes a first movement member, a second movement member, many drive members and a detection member, the first movement member has a first center, with two ends along a second direction oscillating around the first center along a first and a third directions, the second movement member has a second center, with two ends along the first direction oscillating around the second center along the second and third directions. The drive members can drive oscillations of the first and second movement members. The detection member is located above or below the first and second movement members in the third direction, to detect moving distances of the first and second movement members along the third direction. The micromechanical gyroscope can detect angular velocities in two directions simultaneously and perform differential detection to reduce errors, thus expanding application scenarios.

Abstract: The present invention provides a dual-axis gyroscope and an electronic device. The dual-axis gyroscope comprises first mass blocks, second mass blocks, a driving unit and a detecting unit. Tightly coupled connections are formed between adjacent first mass blocks, and between adjacent second mass blocks, thus improving the accuracy of displacement ratios of the first mass blocks and the second mass blocks, and enhancing the operational accuracy and stability of the dual-axis gyroscope. Furthermore, the requirement for the machining precision of the first mass blocks and the second mass blocks is reduced, thus lowering the manufacturing cost of the dual-axis gyroscope and the electronic device.

Abstract: The invention provides a micromachined gyroscope. The micromachined gyroscope includes a driving structure, a detection structure and a connection component. The driving structure includes a first moving component and a driving component. The driving component is used to drive the movement of the first moving component. The detection structure includes a second moving component and a detection component installed in the second moving component. The detection component is used to detect the movement distance of the second moving component along the third or fourth direction. The driving component is installed inside the first moving component, and the detection component is installed inside the second moving component. Greater drive of amplitude can be achieved at the same drive voltage, thereby increasing the sensitivity of the micromachined gyroscope.

Abstract: An electronic device includes an insulation top cover, a middle frame, a display, and a flexible printed circuit electrically connected to an end of the display, where one side of the insulation top cover is located above an outer edge of the display, and the other side of the insulation top cover is connected to the middle frame. The electronic device further includes an electrostatic protection structure, where the electrostatic protection structure is configured to ground, at the middle frame, static electricity entering the electronic device from a gap between the display and the insulation top cover, to discharge, on the middle frame, the static electricity entering the electronic device.