Patent ID: 6417628
Filing Date: 2002-07-09
Classification: H01J

Abstract:
A protective device for a tube bonded on a plasma display panel (PDP), the PDP comprising a plate which does not break when experiencing a first force, an air hole for passing air above and below the plate and in air communications with the tube, and a doughnut-shaped base disposed around the air hole and the tube, the protective device comprising:a hollow shield with a first opening on a bottom end bonded to the doughnut-shaped base for containing the tube, the first opening of the hollow shield having a shape corresponding to a shape of the doughnut-shaped base; and a binding compound for binding the hollow shield onto the doughnut-shaped base, the hollow shield remaining bonded to the doughnut-shaped base when experiencing a second force which is smaller than the first force; wherein when the hollow shield experiences an external force greater than the second force, the hollow shield will separate from the doughnut-shaped base without breaking the plate.