×

Active matrix type liquid crystal display apparatus

  • US 5,831,707 A
  • Filed: 08/24/1995
  • Issued: 11/03/1998
  • Est. Priority Date: 08/24/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An active matrix type liquid crystal display apparatus comprising:

  • a pair of substrates, at least one of which is transparent; and

    a liquid crystal layer composed of a liquid crystal composition enclosed in an interval between said pair of substrates;

    wherein one substrate of said pair of substrates has formed thereon;

    (a) a plurality of scan electrodes;

    (b) a plurality of signal electrodes intercrossing with said plurality of scan electrodes in a matrix shape;

    (c) a plurality of semiconductor switching elements formed at respective crossing points of said plurality of scan electrodes and said plurality of signal electrodes;

    (d) at least one of a plurality of pixel electrodes connected to respective ones of said plurality of switching elements; and

    (e) at least one of a plurality of counter electrodes connected to respective ones of said plurality of scan electrodes; and

    whereinrespective ones of said plurality of pixel electrodes and said plurality of counter electrodes are arranged at a respective region surrounded by ones of said plurality of scan electrodes and ones of said plurality of signal electrodes; and

    a voltage source is coupled to each corresponding pixel electrode by respective ones of said plurality of switching elements to supply an alternating voltage having a substantially symmetrical shape in positive and negative values taking a non-selective voltage level of said scan electrode as a standard.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×