Color selecting member, method of preventing vibration of color selecting member, and cathode ray tube

摘要

Disclosed is a technique for lightening a shadow of a damper line (25) for preventing vibration of a color selecting member (22) cast on a video screen (21) and further preventing occurrence of the shadow. In a cathode ray tube in which electrom beams (eBR, eBL) emitted from neighboring electron guns (41R, 41L) cross each other before passing through a plurality of apertures of a color selecting member (22) and has an area (OL) through which both of the electron beams (eBR, eBL) pass, a damper line (25) is provided in the area (OL) through which both of the electron beams (eBR, eBL) pass. Since one of the electron beams falls on a shadow cast by the other electron beam, the shadow becomes lighter.