Indium sulfate is primarily used in the electronics industry, especially in the production of transparent conductive coatings. It serves as a precursor for indium tin oxide (ITO), a key material in flat panel displays, touchscreens, and organic light-emitting diodes (OLEDs). It is also employed in electroplating processes to deposit indium coatings, which are valued for their corrosion resistance and ability to form low-melting-point alloys. Additionally, indium sulfate finds use in semiconductor fabrication and in research for developing new optoelectronic materials. Its solubility in water makes it suitable for solution-based manufacturing techniques like spin coating and inkjet printing.