the selected areas of the photoconductive layer are developed with triboelectrically charged dry powdered surface treated screen structure materials the improved process increases the adherence of the surface treated materials to the photoconductive layer by contacting the surface treated materials with a solvent to render the photoconductive layer and the materials tacky the dried screen is fixed with a plurality of coatings of an aqueous alcohol mixture of dichromated polyvinyl alcohol or potassium silicate and then filmed aluminized and baked to form the screen assembly application_number US 29950789 A description fig1 shows a color crt 10 having a glass envelope 11 comprising a rectangular faceplate panel 12 and a tubular neck 14 connected by a rectangular funnel 15 the funnel 15 has an internal conductive coating not shown that contacts an anode button 16 and extends into the neck 14 the panel 12 comprises a viewing faceplate or substrate 18 and a peripheral flange or sidewall 20 which is sealed to the funnel 15 by a glass frit 21 a three color phosphor screen 22 is carried on the inner surface of the faceplate 18 the screen 22 shown in fig2 preferably is a line screen which includes a multiplicity of screen elements comprised of red emitting green emitting and blue emitting phosphor stripes r g and b respectively arranged in color groups or picture.