to electrons incident thereon for emitting light in forming a video image as described above the flat tension shadow mask 150 includes a plurality of apertures which are illustrated in greatly enlarged size in fig2 the shadow mask support structure is generally rectangular in shape and is comprised of four elongated linear members 148 each of which is coupled at one end thereof to another elongated linear support structure element the shadow mask structure 148 is typically comprised of steel such as stainless or a rolled steel but may also be comprised of a ceramic material and is affixed to the inner surface of the crt 39 s faceplate 124 by means of a glass sealing frit cement which is heated to its annealing temperature during manufacture of the crt 39 s front assembly 122 the flat tension shadow mask 150 is securely attached to the aft surfaces of the four shadow mask support structures 148 by tack welding the flat tension shadow mask around its periphery where the shadow mask support structure 148 is comprised of a ceramic material the flat tension shadow mask 150 may be affixed to the support structure by means of a glass sealing frit cement as previously described with respect to the mounting of the shadow mask support structure 148 to the crt 39 s faceplate 124 fig2 is shown for illustrative purposes only and does not represent a limitation of the present invention as the flat glass faceplate of the present invention may be incorporated in a color crt in various ways and may have.