3622224

Information

• Patent Grant
• 3622224

• References
• Source

• Patent Number

  3,622,224

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • G02F1/13731 - based on a field-induced phase transition
  • G02F1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
  • G09F9/35 - being liquid crystals
  • G09F9/46 - in which the desired character is selected from a number of characters arranged one behind the other
  • H03K21/08 - Output circuits

• US Classifications

  • 349 - Liquid crystal cells, elements and systems
  • 252 - Compositions