Abstract: A screw pair including inner walls of screw holes in a working nut and a pre-tightening nut with sensor groups including a plurality of displacement sensors capable of measuring a value of a gap between an inner and outer wall of a screw in a diameter direction of the screw hole, the group includes four displacement sensors evenly distributed in a circumferential direction of the screw hole, every two displacement sensors are paired and symmetrical about a center axis, and projections of a plurality of sensor groups in an axial direction overlap the screw; and an adaptive excitation coil is mounted to each displacement sensor, which is capable of attracting the screw in a measurement direction of the adaptive displacement sensor, and a magnetic force of the coil attached is adjustable to change the value of the gap, so that axes of the screw, working nut, and pre-tightening nut coincide.

Abstract: A network device (100) is included in a ring-type network system (500) which selects a time master. A link processing unit (20) generates a link for communicating a frame. The link processing unit (20) has a frame discarding function of discarding the frame in order to avoid a broadcast storm. A path control unit (108) generates a time distribution path starting at and terminating at a time master, clockwise and counterclockwise of the time master. The path control unit (108) communicates a time synchronization message out of the frame, the synchronization message being used for time synchronization of a plurality of network devices (100). A filtering unit (103), upon acquisition of the time synchronization message, makes the time synchronization message to pass through regardless of the frame discarding function.

Abstract: A black frame insertion (BFI) processing method and device and a display device thereof. The BFI processing method includes: determining whether a piezoelectric signal detected in response to a touch operation is greater than a pressure threshold; generating a trigger signal when determining that the piezoelectric signal is greater than the pressure threshold; and controlling a display panel to perform BFI display based on the trigger signal and a logic determination signal.

Abstract: An optical touch substrate, an in-cell touch panel and a display device are disclosed. The optical touch substrate includes a base substrate, a light shielding matrix and a plurality of pixel regions defined by the light shielding matrix. The light shielding matrix includes a plurality of first optical touch electrodes and a plurality of second optical touch electrodes arranged to cross each other. The first optical touch electrodes are insulated from the second optical touch electrodes, and at least one optical touch electrode of the plurality of first optical touch electrodes and the plurality of second optical touch electrodes includes a light sensing layer and a conductive layer provided in a stacked manner. A sensing signal on each optical touch electrode changes as an intensity of light irradiated to a corresponding light sensing layer changes.

Abstract: An optical touch substrate, an in-cell touch panel and a display device are disclosed. The optical touch substrate includes a base substrate, a light shielding matrix and a plurality of pixel regions defined by the light shielding matrix. The light shielding matrix includes a plurality of first optical touch electrodes and a plurality of second optical touch electrodes arranged to cross each other. The first optical touch electrodes are insulated from the second optical touch electrodes, and at least one optical touch electrode of the plurality of first optical touch electrodes and the plurality of second optical touch electrodes includes a photosensitive layer and a conductive layer provided in a stacked manner. A sensing signal on each optical touch electrode changes as an intensity of light irradiated to a corresponding photosensitive layer changes.

Abstract: A black frame insertion (BFI) processing method and device and a display device thereof. The BFI processing method includes: determining whether a piezoelectric signal detected in response to a touch operation is greater than a pressure threshold; generating a trigger signal when determining that the piezoelectric signal is greater than the pressure threshold; and controlling a display panel to perform BFI display based on the trigger signal and a logic determination signal.