Abstract: An operation method of electronic device, comprising providing a first panel, wherein the first panel comprises first substrate, first medium layer disposed on the first substrate, a first electrode layer disposed between the first substrate and the first medium layer, and a second electrode layer disposed between the first electrode layer and the first medium layer; providing a second panel overlapped with the first panel, providing an adhesive layer, wherein the first panel is attached to the second panel through the adhesive layer, and the first panel and the second panel present a mirror-symmetrical structure with the adhesive layer as the axis of symmetry; applying a first voltage to the first electrode layer; applying a second voltage to the second electrode layer; applying a third voltage to the first electrode layer.

Abstract: An electrically tunable liquid crystal lens includes a carrier substrate, a common electrode layer disposed on the carrier substrate, a liquid crystal unit, a patterned electrode layer, a terminal electrode layer, a dielectric insulating layer, and a cover. The liquid crystal unit is disposed on the common electrode layer opposite to the carrier substrate, and includes a plurality of liquid crystal molecules. The patterned electrode layer is disposed on the liquid crystal unit opposite to the common electrode layer, and has a plurality of aperture patterns located within a projection of the liquid crystal unit on the patterned electrode layer. The terminal electrode layer is disposed on the patterned electrode layer opposite to the liquid crystal unit. The dielectric insulating layer is disposed between the patterned electrode layer and the terminal electrode layer. The cover is disposed on the terminal electrode layer opposite to the dielectric insulating layer.

Abstract: A power device with multiple electrifying modes is disclosed. The power device includes a casing, a power wire, a receptacle unit, a connecting port unit, a circuit unit and a wireless charging module. The power wire is coupled to an alternating current power source. The receptacle unit and the connecting port unit are disposed on the casing. The circuit unit is coupled to the power wire, the receptacle unit and the connecting port unit. The circuit unit rectifies the alternating current power source to a direct current power source and provides the connecting port unit with the direct current power source. The circuit unit further provides the receptacle unit with the alternating current power source. The wireless charging module is coupled to the circuit unit. The circuit unit drives the wireless charging module to generate an electromagnetic field, so as to induct an electric potential for power supply.

Abstract: A power device with multiple electrifying modes is disclosed. The power device includes a casing, a power wire, a receptacle unit, a connecting port unit, a circuit unit and a wireless charging module. The power wire is coupled to an alternating current power source. The receptacle unit and the connecting port unit are disposed on the casing. The circuit unit is coupled to the power wire, the receptacle unit and the connecting port unit. The circuit unit rectifies the alternating current power source to a direct current power source and provides the connecting port unit with the direct current power source. The circuit unit further provides the receptacle unit with the alternating current power source. The wireless charging module is coupled to the circuit unit. The circuit unit drives the wireless charging module to generate an electromagnetic field, so as to induct an electric potential for power supply.

Abstract: A power device with multiple electrifying modes is disclosed. The power device includes a casing, a power wire, a receptacle unit, a connecting port unit, a circuit unit and a wireless charging module. The power wire is coupled to an alternating current power source. The receptacle unit and the connecting port unit are disposed on the casing. The circuit unit is coupled to the power wire, the receptacle unit and the connecting port unit. The circuit unit rectifiers the alternating current power source to a direct current power source and provides the connecting port unit with the direct current power source. The circuit unit further provides the receptacle unit with the alternating current power source. The wireless charging module is coupled to the circuit unit. The circuit unit drives the wireless charging module to generate an electromagnetic field, so as to induct an electric potential for power supply.

Abstract: A flow meter comprises a housing with a tube, a floater inside the tube, and a permanent magnet embracing the housing. The volume of a fluid being passed through the tube defines the height of the floater position in the tube. The floater is equipped with a rotation coil and bulb connected thereto. Rotating the floater in the magnetic field of the permanent magnet under the influence of a fluid induces a voltage in the coil, and the bulb is turned on making reading volume values easier and more convenient.

Abstract: A flow meter comprises a housing with a tube, a floater inside the tube, and a permanent magnet embracing the housing. The volume of a fluid being passed through the tube defines the height of the floater position in the tube. The floater is equipped with a rotation coil and bulb connected thereto. Rotating the floater in the magnetic field of the permanent magnet under the influence of a fluid induces a voltage in the coil, and the bulb is turned on making reading volume values easier and more convenient.