Patents Examined by Tai W. Duong
  • Patent number: 5323254
    Abstract: In a display device of the reset type, damage of switching elements such as diodes (9, 19) due to electrostatic discharge is prevented by arranging a switching unit (14) between column electrodes (8) and lines (18) for a reference voltage. The switching unit (14) comprises, for example a series arrangement of diodes (13) which is arranged anti-parallel to the diodes (9, 19) between column electrodes and the reference line. Further measures for preventing electrostatic discharge between row electrodes (7, 11) and column electrodes (8) are described.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: June 21, 1994
    Assignee: U.S. Philips Corporation
    Inventor: Michael G. Pitt