Patent ID: 6576383
Filing Date: 2003-06-10
Classification: H01J

Abstract:
A method of manufacturing a luminescent screen assembly for a color cathode-ray tube (CRT), comprising:providing a faceplate panel, wherein the faceplate panel has a light absorbing matrix thereon; applying an organic conductive (OC) layer on the panel having the light-absorbing matrix; applying an organic photoconductive (OPC) layer on the organic conductive (OC) layer; electrically charging the organic photoconductive (OPC) layer; sequentially discharging selected portions of the electrically charged organic photoconductive (OPC) layer using a symmetric exposure profile and an asymmetric exposure profile, wherein the asymmetric exposure profile is generated by exposing the OPC layer at a plurality of light source positions that are asymmetrical with respect to a midpoint location of a color-emitting phosphor line; and affixing a color-emitting phosphor onto the discharged portions of the organic photoconductive (OPC) layer after each exposure step.