See-through coordinate graphic input tablet

摘要

The see-through coordinate input tablet is formed of two oppositely facing elements each made of a transparent substrate provided with fine metal wires running in parallel on the inward surface of the substrate, the running directions on the two substrates being perpendicular to each other. At least either one of the elements is provided with a detecting resistor along a side periphery crossing the end portions of the parallel-running metal wires so that the accuracy and reliability in the detection of the coordinates of the inputted point can be improved.