The present invention is related to a flat panel for cathode-ray tube capable of securing a large viewing area in the flat panel wich is fitted into a window of a cabinet. In accordance with the panel of the present invention, stepped portions area formed alond an edge of a face to fit the panel into the window of the cabinet. A depht from a surface of the face to a surface of the stepped portion is set to satisfy a condition of 2>/=Tf/Tc>/=0.7 where Tf is a vertical distance from a starting point of the stepped portion to an inner surface of the panel and Tc is a thickness of the center of the face. The panel in accordance with the present invention can provide perceptual flatness to a viewer; improved implosion-proof characteristics; and a structure capable of enduring an external mechanical impact. Further, the panel having a precise structure can be manufactured by a press-molding process.
