A connector set includes at least one of a header and a socket and a jointer. The surge guard includes an outer loop of P-type surge guard material and an inner grid of linear sections which form a plurality of inner loops extending inside the outer loop. As the compounds of the present invention have superior antibacterial activity and pharmacokinetic profiles to their enantiomers, their racemates and conventional antibacterial agents, with nearly no phototoxicity, the compounds of this invention are useful for antibacterial agents. The cross-members are positioned between and slidably engaged with the side members, wherein the cross-members and cover are moved along the side members to retract the cover. The washing machine includes: a housing ; a tube installed inside the housing, for storing washing water, the tub including at least one opening and at least one pipe connected with the opening ; a drum installed inside the tub and configured to wash laundry; and cutoff means for preventing bubbles generated in the drub and the tub from being leaked to an outside through the opening and the pipe. Solving MeansBy performing the formation of the pixel electrode 127, the source region 123 and the drain region 124 by using three photomasks in three photolithography steps, a liquid crystal display device prepared with a pixel TFT portion, having a reverse stagger type n-channel TFT, and a storage capacitor can be realized.