Patents by Inventor Ingrid Maria Vogels

Ingrid Maria Vogels 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).

  • Driving To Reduce Aging In An Active Matrix Led Display
    Publication number: 20080018632
    Abstract: A driver (DD, SD, PD1, PS1, PD2, PS2) supplies, at a frame rate, a first current (I1) with a first duty cycle being smaller than one to a first light emitting element (PL1) of an active matrix display (AMD) and a second current (I2) to a second light emitting element (PL2) of the active matrix display (AMD). The second light emitting element (PL2) has a shorter lifetime than the first light emitting element (PL1). The driver (DD, SD, PD1, PS1, PD2, PS2) limits controls the second duty cycle to be larger than the first duty cycle.
    Type: Application
    Filed: June 13, 2005
    Publication date: January 24, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Claus Cordes, Frank Budzelaar, Ingrid Maria Vogels, Jurgen Hoppenbrouwers, Michiel Klompenhouwer, Nijs Van Der Vaart