Electroluminescent devices are fabricated using either organic or inorganic electroluminescent materials. Powder phosphor-based electroluminescent panels are frequently used as backlights for liquid crystal displays. Applications of PEDOT include electrochromic displays, antistatics, photovoltaics, electroluminescent displays, printed wiring, and sensors. PEDOT is found in electrochromic displays, photovoltaics, electroluminescent displays, printed wiring, and sensors. Materials from this class of polymers variously possess conducting, semiconducting, electroluminescent, photovoltaic and other properties. Character LCDs may have a backlight, which may be LED, fluorescent, or electroluminescent. Casio introduced their version of electroluminescent backlight technology in 1995. Electroluminescent devices have been produced from single nanotubes and their macroscopic assemblies. Non-LED backlights often require higher voltages (I.E. electroluminescent). Copper-doped zinc sulfide ("ZnS plus Cu") is used also in electroluminescent panels. The wood cabinet was painted black and the control panel was backlit using electroluminescent technology. This method can produce RGB patterned electroluminescent structures with 1000 ppi (pixels-per-inch) resolution. Also standard was a Landau vinyl roof with electroluminescent opera lamps. The electroluminescent materials can also be applied using inkjet printing. Beneq is the only manufacturer of TFEL (Thin Film Electroluminescent Display) and TAESL displays.