ELECTRIC DISCHARGE TUBE, MOUTHPIECE, ILLUMINATING DEVICE, DISPLAY, AND TV RECEIVER

摘要

A mouthpiece (50) includes a cylindrical body (51), and elastic holding pieces (54) projecting to the radial inner side are formed on the body (51). The elastic holding pieces (54) elastically abut onto the outer peripheral surface of a glass tube (40). The body (51) of the mouthpiece (50) can accept variances in the outer diameter dimensions of the glass tube (40), since the body (51) is fitted to the glass tube (40) via elastic holding pieces (54) which is elastically deformable in the radial direction. Thereby, the accurate control of the dimensions is not needed when the glass tube (40) is manufactured, and accordingly, the cost can be reduced.