Patent ID: 6437499
Filing Date: 2002-08-20
Classification: H01J

Abstract:
A cathode-ray tube comprising:a vacuum envelope including a panel that has a phosphor screen formed on an inner surface thereof; a plurality of electron guns disposed in the vacuum envelope, for emitting electron beams to the phosphor screen and dividedly scanning a plurality of scanning regions on the phosphor screen; a shadow mask arranged between the phosphor screen and the electron guns and including a substantially rectangular mask body and a substantially rectangular mask frame attached to the periphery of the mask body, the mask body having a plurality of effective areas which include numerous electron beam passage apertures and are defined in association with the scanning regions, and a boundary portion defined between the effective areas and opposing to the boundary between the scanning regions of the phosphor screen; and a coupling member coupled to the boundary portion of the mask body and the mask frame in order to hold the boundary portion of the mask body at a predetermined position.