Investigation of electrical characteristics of multi-thin-film metal electrodes deposited on flexible polydimethylsiloxane substrates by using an automatic folding test system

This study presents an electrical characterization of multi-thin-film metal electrodes deposited on flexible substrates by using an automatic folding test system (AFTS). To quantize folding conditions, AFTS for folding function is utilized to control radii of curvature of the flexible substrates, folding times, and velocities. Additionally, AFTS measures the electrical characteristics of flexible substrates during folding test. As a result, the new technique successfully measures electrical characteristics of flexible polydimethylsiloxane (PDMS)/gold electrodes for analysis during the 0/cm to 0.5/cm curvature folding cycles. Inspection results of folding characteristics depicted on flexible displays help a designer or maker of flexible displays design useful and comfortable flexible electronic products.