Patent ID: 6673390
Filing Date: 2004-01-06
Classification: G06F

Abstract:
A method for manufacturing a linearization pattern for a touch screen including a glass layer having a surface on which a conductive layer having a low conductivity has been sputter coated, a linearization pattern, an isolation layer, a four wire silver printing layer and a tail cable connected to a controller, the controller being arranged to output four equal voltages to four ends of the touch screen and to measure current variation, comprising the steps of:making an ink by blending highly conductive material of silver powder in a percentage weight range of between about 59% to 62% and carbon powder in a percentage weight range of between about 14% to 16% in a contact agent solvent having a percentage weight range of between about 24% to 25%; and using the ink to print a linearization pattern on a border of the sputter-coated glass layer surface to form a linearization pattern such that a resistance value ratio between a square of the sputter-coated glass layer and two ends of the linearization pattern is about 10.