At 04:59 PM 4/3/03 -0500, Royce Simmons wrote: >Hello All, > >What is the voltage needed for elecrto luminescient backlighting for an LCD? Check the spec sheet but typical values range from 85 Vac to 200 Vac at frequencies in the 100 to 400 Hz range. Brightness is directly proportional to voltage and frequency and the half-life of the EL panel is inversely proportional to brightness: the brighter the panel, the shorter the life. Do make sure that you have an EL back-light panel and not LEDs. They can give similar results but LED back-light panels need about 4V at about 60 or so mA (DC). dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 19 years of Engineering Innovation (1984 - 2003) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics