Patents by Inventor Michael G. Pitt

Michael G. Pitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Display device with transflective electrode
    Patent number: 6330100
    Abstract: A transflective color display having apertures in reflective electrodes through which light from a backlight (9) passes in the transmissive mode. The switching behavior for both the reflective and the transmissive mode is made identical by introducing a retardation plate (11). The transmission efficiency is further increased by using only a monochrome green mode in transmission.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: December 11, 2001
    Assignee: U. .S Philips Corporation
    Inventors: Nicolaas A. J. M. Van Aerle, Michael G. Pitt
  • Display device with transflective electrode
    Publication number: 20010004296
    Abstract: A transflective color display having apertures in reflective electrodes through which light from a backlight (9) passes in the transmissive mode. The switching behavior for both the reflective and the transmissive mode is made identical by introducing a retardation plate (11). The transmission efficiency is further increased by using only a monochrome green mode in transmission.
    Type: Application
    Filed: February 6, 2001
    Publication date: June 21, 2001
    Applicant: U.S. PHILIPS CORPORATION
    Inventors: Nicolass A.J.M. Van Aerle, Michael G. Pitt
  • Display device with transflective electrode
    Patent number: 6211992
    Abstract: A transflective color display having apertures in reflective electrodes through which light from a backlight (9) passes in the transmissive mode. The switching behavior for both the reflective and the transmissive mode is made identical by introducing a retardation plate (11). The transmission efficiency is further increased by using only a monochrome green mode in transmission.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: April 3, 2001
    Assignee: Flat Panel Display Co. (FPD) B.V.
    Inventors: Nicolaas A. J. M. Van Aerle, Michael G. Pitt
  • Display device having drive electrode with projections
    Patent number: 5929829
    Abstract: Display device having such electrically conducting patterns in the supply electrodes (4, 5) that flashover easily occurs between the supply electrodes (for example, pointed projections (3, 15). Damage of switching elements (12, 23) due to electrostatic charge is thereby prevented.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: July 27, 1999
    Assignee: Flat Panel Display Co. B.V. (FPD)
    Inventor: Michael G. Pitt
  • Electro-optical display device with electrostatic breakdown control means
    Patent number: 5442469
    Abstract: In a display device (1) with symmetrical two-pole switching elements (9) on a first substrate (active plate) damage due to electrostatic discharge of too high voltages across row electrodes (11) on a second substrate (passive plate) is prevented by arranging switching units (13) on the first substrate. The switching units are connected to the row electrodes (11) on the second plate via, for example an anisotropic conductor. Electrostatic discharge between column electrodes (8) and row and column electrodes is also prevented by arranging extra switching units (16, 26) on the active plate.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: August 15, 1995
    Assignee: U.S. Philips Corporation
    Inventor: Michael G. Pitt
  • Display device with electrostatic discharge protection
    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