Abstract: An improved baked-hardenable solution and method is disclosed for painting an electrical bridge within a cathode ray tube during its manufacture. The solution is particularly valuable in providing a permanent electrically conductive bridge between the high-voltage charged shadow mask of a color picture tube and the aluminum film deposited on the faceplate to ensure that the aluminum film is charged with the same high voltage present on the shadow mask. The solution according to the invention essentially comprises a mixture of substantially equal parts of glass frit particles and graphite particles each consisting of about 14 to 21 percent weight percent of said solution and in the size range of 0.5 to 10 microns. The particles are in solution in an evaporable solvent consisting of about 14 to 21 weight percent and including a thickening agent in an amount sufficient to provide a paintable viscosity.

Abstract: A method is disclosed for providing an electrically conductive bridge between the high-voltage charged shadow mask of a color picture tube and the aluminum film deposited on the faceplate to ensure that the aluminum film is charged with the same high voltage present on the shadow mask. A paintable solution is provided which essentially comprises a mixture of substantially equal parts of glass frit particles and graphite particles in the micron-sized range. The particles are in solution in an evaporable solvent including a thickening agent in an amount sufficient to provide a paintable viscosity.