Crown develops and sells optical switching film that can be embedded between sheets of glass or applied to the surface of glass, or other rigid substrates such as acrylic, to electronically control opacity (“DynamicTint™”). Developed under an exclusive license from Hewlett-Packard (“HP”), their technology allows a transition between clear and dark in seconds and can be applied to a wide array of windows, including commercial buildings, automotive sunroofs, and residential skylights and windows. At the core of Crown’s proprietary and patent-protected technology is a thin film that is powered by electrically charged pigment which not only replaces common window tints but is also a more sustainable alternative to traditional window treatments. Crown partners with leading glass and film manufacturers for mass production and distribution of DynamicTint. Crown’s electrokinetic (EK) technology was derived from proprietary ink and microfluidic technology developed at HP. Electrokinetic refers to the movement of particles within a fluid under the influence of an electric field. Their EK film technology utilizes nanometer-sized pigment particles that are electrically charged and suspended in a liquid that is sandwiched between two clear substrates that are coated with a transparent conductor oxide (TCO) film.