FORMULATION AND METHOD FOR FABRICATING A TRANSPARENT FORCE SENSING LAYER

摘要

A method and formulation for fabricating a transparent force sensing (TFS) layer is provided. The TFS layer is fabricated by preparing a formulation for a transparent polymer-conductor composite (TPCC). The TPCC formulation comprises transparent conducting oxide (TCO) nanoparticles, a first solvent for forming a dispersion of the TCO nanoparticles and having an intermediate boiling point ranging from one hundred and twenty five (125) to one hundred and ninety nine (199) degrees centigrade, at least one additive to prevent agglomeration of the TCO nanoparticles, a second solvent for facilitating dissolving of the at least one additive, a third solvent having a high boiling point above one hundred and ninety nine (199) degrees centigrade and a transparent polymer dissolved in the first and third solvents. The TPCC formulation is disposed on a substrate forming a wet film and dried to form a dry film.

主权项

1. A method of fabricating a Transparent Force Sensing (TFS) layer comprising:
preparing a transparent polymer-conductor composite TPCC formulation by mixing:
transparent conducting oxide (TCO) nanoparticles;a first solvent for forming a dispersion of the TCO nanoparticles and having an intermediate boiling point ranging from one hundred and twenty five (125) to one hundred and ninety nine (199) degrees centigrade;at least one additive to prevent agglomeration of the TCO nanoparticles;a second solvent for facilitating dissolving of the at least one additive;a third solvent having a high boiling point above one hundred and ninety nine (199) degrees centigrade; anda transparent polymer dissolved in the first and third solvents; disposing the TPCC formulation on a substrate forming a wet film; and drying the disposed TPCC formulation.