a metallic frame for use in a fluorescent display panel having a cig structure and containing a driver ic chip in a vacuum chamber . the metallic frame includes a box - type metallic shield covering the ic chip , metallic external leads , and a deformable part coupled between the box - type metallic shield and the metallic external leads . the deformable part deforms more easily than the metallic shield and the leads upon receiving a tensile force . the deformable part is preferably formed at a bent section of the metallic shield or near a shield side end of the metallic external leads . the deformable part preferably consists of two bent or curved elements which are positioned to form a circle , ellipse , or polygon .