Abstract: A printed circuit board includes: a core portion including a cavity in one surface thereof; first and second penetration holes disposed in a bottom surface of the cavity and penetrating through the core portion; an electronic component disposed in the cavity; and an insulating material filling the cavity and each of the first and second penetration holes, wherein a sidewall of the cavity is higher than the electronic component.

Abstract: Disclosed is a nozzle drive device for a bidet, the device including: a nozzle cover mounted on a water supply part to which a water supply source is connected; a nozzle fixing part coupled to an inside of the nozzle cover; an extended nozzle part slidably coupled to an inside of the nozzle fixing part and simultaneously communicating with a base end of the nozzle cover and a front end of the nozzle cover; a spray nozzle part coupled to the inside of the extended nozzle part to be slidably movable toward an upper end portion, and having at least one spray hole connected to the water supply part so as to spray wash water to an outside; and a driving part having a wound member coupled to an outside of the nozzle cover, the wound member being rotated so as to draw and insert the extended nozzle part and the spray nozzle part in multiple stages.

Abstract: A method of driving an electronic device includes displaying a plurality of fingerprint recognition icons on a display device configured to perform fingerprint recognition, and releasing a lock state of the display device through a fingerprint authentication process upon determining at least one first fingerprint recognition icon among the plurality of fingerprint recognition icons is touched. The plurality of fingerprint recognition icons include at least one first fingerprint recognition icon configured to support the fingerprint recognition and at least one second fingerprint recognition icon configured to not support the fingerprint recognition.

Abstract: The present disclosure relates to a semi-automatic toilet bowl system that automatically closes a toilet cover and performs flush by sensing that a user finishes relieving nature after manually opening the toilet cover to relieve nature. More particularly, the present disclosure relates to a semi-automatic toilet bowl system that can prevent excreta and toilet water from flying outside, can semi-automatically open a cover only when the toilet is used, and can prevent power consumption for opening the toilet by automatically rotating and closing the toilet cover and automatically performing flush when a user who feels nature's call manually open the toilet cover and then finishes relieving his/her nature.