Patent ID: 6812629
Filing Date: 2004-11-02
Classification: H01J

Abstract:
A shadow mask frame assembly of a flat cathode ray tube, comprising:a shadow mask including a plurality of strips formed at a main body ina vertical direction by being separated by a predetermined distance by slits and a plurality of bridges forming the slots by connecting neighboring strip and sectioning the slits, the slots including a plurality of first slot groups and second slot groups with the slots, the first slot groups having a wider interval between the bridges than the second slot groups, with at least two columns including at least both said first and second slot groups in each column, the slots partially passing through thermions emitted from an electron gun of said flat cathode ray tube while the remaining thermions colliding against the strips and the bridges; and a frame supporting said shadow mask, said frame comprising: a first support member and a second support member secured at a long side portion of said shadow mask; and a first elastic member and a second elastic member, said first elastic member and said second elastic member each having two end portions, one of said two end portions coupled to said first support member and the other one of the two end portions coupled to said second support member, said first and second elastic members applying a tension force to said shadow mask.