MULTIPLEXED LCD (LIQUID CRYSTAL DISPLAY) DRIVER INTEGRATED CIRCUITS FOR USE WITH LOW COST MICROCOMPUTERS

A general-purpose LCD (liquid crystal display) driver chip set employing a 2/3 multiplexing scheme is presented. Mask programmable options of either four or three common backplanes are provided. A master/slave approach is employed to yield a more optimum system expansion of frontplanes. Temperature tracking of LC threshold shift can readily be implemented off chip. Internal clock timing can be generated by either an on-board oscillator circuit or an external clock source. The chip set will be capable of operating over a 3 to 6 volt range at temperatures from -40 to plus 85 degrees C. The maximum frame rate will be limited to 250 Hz. These operating parameters should ensure a wide range of applications.

• Supplemental Notes:
  • Also published in HS-028 950 (SAE-SP-457), "Automotive Electronic Instrumentation; Displays and Sensors," Warrendale, Pennsylvania, 1980 p 105-7. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • BARKER, C
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: 3 p.

Subject/Index Terms

• TRT Terms: Integrated circuits; Liquid crystal displays; Microcomputers; Multiplexing
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00393060
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 800542, HS-028 968
• Files: HSL, USDOT
• Created Date: Feb 28 1985 12:00AM