HIGHLY MULTIPLEXED DOT-MATRIX LCD SUITABLE FOR WIDE TEMPERATURE RANGE

Double Layered Super Twisted Nematic LCD (D-STN) which can be operated by 1/128 duty ratio is presented. Two conflicting requirements, good visibility and a wide operating temperature range, are fulfilled through optimization of cell parameters, such as twist angle, pretilt angle of liquid crystal to glass substrate and elastic properties of liquid crystal material. The response time of LCD decreases with increasing temperature. Hence at high temperature, the "frame response" phenomenon is observed and this results in reduction of contrast ratio. The authors propose multiple line selection (MLS) method for increasing contrast ratio at high temperature.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1560913495
• Supplemental Notes:
  • This paper appears in SAE SP-964, "Automotive Display Systems and IVHS".
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Muraji, H
  • Matsumoto, T
  • Ruckmongathan, T N
  • Sigeno, K
  • Ohara, K
• Publication Date: 1993-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 51-57
• Serial:
  • SAE Special Publications
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Design; Emergency response time; High temperature; Liquid crystal displays; Optimization; Reaction time; Temperature; Visibility
• Uncontrolled Terms: Contrast ratio
• Old TRIS Terms: Multiple line selection; Operating temperature; Optimum design
• Subject Areas: Design; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00634510
• Record Type: Publication
• ISBN: 1560913495
• Report/Paper Numbers: SAE/SP-93/964, Paper 930455, Paper 930456
• Files: TRIS
• Created Date: Aug 23 1993 12:00AM