This paper reviews advances made in the state of the art of twisted nematic field effect liquid crystal displays from an automotive designer point of view. The extension of glass frit sealing techniques to larger displays and the advent of polarizing films that are able to maintain efficiency after prolonged exposure to heat and humidity have contributed to the displays' long term life and reliability. Likewise the development of liquid crystal fluids capable of operating over a wide temperature range results in performance features which are close to automotive requirements. Finally the paper discusses some multiplex drive techniques using currently available drive circuits. The intent is to show practical methods of reducing pin count without serious loss of performance.

  • Supplemental Notes:
    • Also published in HS-028 950 (SAE-SP-457), "Automotive Electronic Instrumentation; Displays and Sensors," Warrendale, Pennsylvania, 1980 p 13-20. 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:
    • Riordan, K
  • Publication Date: 1980

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00322855
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800239, HS-028 953
  • Files: HSL, TRIS
  • Created Date: Jan 19 1985 12:00AM