Abstract: The disclosure provides a dartboard, a dart scoring device and a dart scoring method. The dartboard comprises a target board body; and a projection device disposed on the target board body and configured to project a target image around a periphery of the target board body to form a virtual target. The target board body according to the disclosure has a small size and is convenient to carry and use.

Abstract: A screen, a projection system and a focusing method are provided. The screen is used for presenting a projected image and it includes a screen body, a photosensitive detector and a processor. The photosensitive detector is on a projection surface of the screen body for collecting a gray level of the image presented on the screen body. The processor is for obtaining description information of the image according to the gray level of the image collected by the photosensitive detector, the description information of the image indicating definition of the projected image.

Abstract: The disclosure provides a focusing method of optical machine of projector, a focusing device and an optical machine. The focusing method comprises steps of: detecting deformation amount of lens of an optical machine; and controlling and adjusting a focal length of the lens of the optical machine according to the deformation amount of the lens of the optical machine. In the he focusing method, by detecting the deformation amount of the lens of the optical machine in real time and controlling to adjust the focal length of the lens of the optical machine in real time according to the deformation amount of the lens of the optical machine, the adjustment precision of the focal length of the lens of the optical machine can be greatly improved.

Abstract: A portable sunscreen applying apparatus and a sunscreen application reminding method are provided, and the portable sunscreen applying apparatus includes: an ultraviolet processing device and a sunscreen accommodating device connected with the ultraviolet processing device, the sunscreen accommodating device is configured for accommodating sunscreens of different protection levels; the ultraviolet processing device includes: an ultraviolet detecting unit, for detecting current ultraviolet and obtaining an intensity of the current ultraviolet; and a sunscreen application reminding unit, for issuing a warning reminder of one of the sunscreens of the protection level corresponding to the intensity of the current ultraviolet. The ultraviolet processing device and the sunscreen accommodating device are provided together, the intensity of the current ultraviolet is detected by the ultraviolet detecting unit in the ultraviolet processing device, and the user is reminded to use the appropriate sunscreen.

Abstract: The present disclosure provides a system for generating a mask pattern, a method for generating a mask pattern, and an exposure system. According to an embodiment of the present disclosure, the system for generating a mask pattern comprises: a mask pattern provision device configured to provide a mask pattern signal via a wired or wireless network; a mask pattern transmission device configured to process the mask pattern signal provided by the mask pattern provision device to generate mask pattern information, and to transmit the generated mask pattern information over a Radio Frequency Identification (RFID) signal; and a mask pattern generation device configured to generate a mask pattern corresponding to the mask pattern information based on the mask pattern information and display the generated mask pattern.

Abstract: A method and a system for controlling automatic quantitative fluid supply are disclosed, and the method and the system automatically control the quantitative fluid supply by timing a period of time t required for introducing gas (20) into a sealing tank (4) in such a way that the pressure in the sealing tank (4) reaches a default value and calculating a period of time T, required for continuously introducing the gas (20) into the sealing tank (4) to extrude a fixed volume (V) of the fluid, from the time t, in the process of automatic quantitative fluid supply, so as to automatically control the switching-on and -off of a gas passage (1), overcome the impact of the reduction of the liquid level on the quantitative supply accuracy and guarantee the accuracy requirement of repeated quantitative supply.

Abstract: The present disclosure discloses an array substrate, comprising a substrate, a plurality of pixel regions on the substrate, and a thin-film transistor formed in each of the pixel regions, each of the pixel regions comprising a pixel electrode region, wherein, the thin-film transistor comprises a gate layer and a source/drain layer formed laminatedly on the substrate; the array substrate further comprises a flat layer and a reflective metal layer formed in sequence on the substrate and covering at least the pixel electrode region and the thin-film transistor; the reflective metal layer is electrically connected to a drain of the thin-film transistor; and at least one of the gate layer and the source/drain layer is formed of a single metal layer. The present disclosure further provides a method for manufacturing the array substrate and a totally reflective type liquid crystal display comprising the array substrate.

Abstract: A method and a system for controlling automatic quantitative fluid supply are disclosed, and the method and the system automatically control the quantitative fluid supply by timing a period of time t required for introducing gas (20) into a sealing tank (4) in such a way that the pressure in the sealing tank (4) reaches a default value and calculating a period of time T, required for continuously introducing the gas (20) into the sealing tank (4) to extrude a fixed volume (V) of the fluid, from the time t, in the process of automatic quantitative fluid supply, so as to automatically control the switching-on and -off of a gas passage (1), overcome the impact of the reduction of the liquid level on the quantitative supply accuracy and guarantee the accuracy requirement of repeated quantitative supply.

Abstract: An array substrate comprises a substrate, a gate electrode, a source electrode and a drain electrode, the source electrode and the drain electrode being provided in different areas on the substrate and the vertical projections of the source electrode and the drain electrode on the substrate having an overlapping area; a semiconductor layer formed between the source electrode and the drain electrode, a vertical projection of the semiconductor layer on the substrate having overlapping areas with the vertical projections of the source electrode and the drain electrode on the substrate; a first insulating layer formed on the substrate while below the gate electrode and covering the source electrode or the drain electrode; a pixel electrode, a gate line, and a data line. A manufacturing method for the array substrate is also disclosed.

Abstract: An array substrate comprises a substrate, a gate electrode, a source electrode and a drain electrode, the source electrode and the drain electrode being provided in different areas on the substrate and the vertical projections of the source electrode and the drain electrode on the substrate having an overlapping area; a semiconductor layer formed between the source electrode and the drain electrode, a vertical projection of the semiconductor layer on the substrate having overlapping areas with the vertical projections of the source electrode and the drain electrode on the substrate; a first insulating layer formed on the substrate while below the gate electrode and covering the source electrode or the drain electrode; a pixel electrode, a gate line, and a data line. A manufacturing method for the array substrate is also disclosed.