Patents by Inventor Fransiscus Jacobus Vossen

Fransiscus Jacobus Vossen 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).

  • Patent number: 7777738
    Abstract: An active matrix display comprises a select driver (SD) to drive select electrodes (SE), and a data driver (DD) to supply data (D) to data electrodes (DE). Pixels (10) are associated with intersections of the data electrodes (DE) and the select electrodes (SE). The pixels (10) comprise a light emitting element (L) and a pixel driving circuit (PD). The pixel driving circuit (PD) receives a power supply voltage (VB) via a power supply electrode (PE), and data (D) via a data electrode (DE) to control a brightness of the light emitting element (L). A power supply (PS) supplies the power supply voltage (VB). The power supply electrodes (PE) are arranged to supply the power supply voltage (VB) to the pixel driving circuits (PD) of lines of pixels (10) extending in the same direction as the select electrodes (SE) or in the same direction as the data electrodes (DE).
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: August 17, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jurgen Jean Louis Hoppenbrouwers, Roel Van Woudenberg, Fransiscus Jacobus Vossen
  • Patent number: 6628275
    Abstract: A full-bridge driver circuit comprising four controllable switches supplies a voltage having alternating polarities between a first and a second electrode of a flat panel display. A series arrangement of a capacitance present between the first and a second electrode, an inductor, and a diode, is arranged in parallel with one of the switches. The diode is poled to be conductive during a resonance phase. The control circuit closes one of the switches so that the inductor and the capacitance form a resonant circuit to reverse the polarity of the voltage in an energy-efficient way without requiring any other controllable switches than the ones forming the full-bridge driver circuit.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: September 30, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Fransiscus Jacobus Vossen, Alphonsus Maria Van Amesfoort, Age Jochem Van Dalfsen
  • Publication number: 20020033806
    Abstract: A full-bridge driver circuit comprising four controllable switches (S1, S2, S3, S4) supplies a voltage (Vp) having alternating polarities between a first and a second electrode (E1, E2) of a flat panel display (FP),wherein a series arrangement of a capacitance (Cp) present between the first and a second electrode (E1, E2), an inductor (L1), and a diode (D1) is arranged in parallel with one of the switches (S1), and the diode (D1) is poled to be conductive during a resonance phase (P3) wherein the control circuit (CC) closes one of the switches (S1) so that the inductor (L1) and the capacitance (Cp) form a resonant circuit to reverse the polarity of the voltage (Vp) in an energy-efficient way without requiring any other controllable switches than the ones forming the full-bridge driver circuit.
    Type: Application
    Filed: May 11, 2001
    Publication date: March 21, 2002
    Inventors: Fransiscus Jacobus Vossen, Alphonsus Maria Van Amesfoort, Age Jochem Van Dalfsen
  • Publication number: 20020000955
    Abstract: A display device comprises groups of scan electrodes (X1, X2) and groups of sustain electrodes (Y1-Y2) forming groups of electrode pairs (X1-Y1, X1-Y2, X2-Y1, X2-Y2). The sustain discharge for at least one of these groups occur at a different time than for at least one other group. The currents during sustain discharge are then distributed in time, reducing the peak heights and reducing losses and stray electromagnetic radiation.
    Type: Application
    Filed: May 29, 2001
    Publication date: January 3, 2002
    Inventors: Sander Derksen, Alphonsus Maria Van Amesfoort, Fransiscus Jacobus Vossen