Can be a stand alone component, the top layer of a membrane switch, or the top layer of a PC board with mechanical switches. Used to display logos and relevant information about a product. Typically made from Polyester or Polycarbonate. Optional hard coating for scratch and chemical resistance. Buttons and other features can be embossed Backlighting can be added for added visibility in low light conditions. Colors and textures can be custom matched to your specifications. Typical thickness between 0.002" and 0.040"