Patents by Inventor Bernhard Siegmar

Bernhard Siegmar 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).

  • Device for backlighting a liquid-crystal display facility for a display and/or control unit, in particular in a household appliance
    Patent number: 7959340
    Abstract: The aim is to provide backlighting in a liquid-crystal display unit for a display and/or operator control unit, in particular on a domestic appliance. To achieve this, a backlighting layer, to which at least one backlighting source can be coupled, is located beneath an LCD layer and at least one supplementary backlighting layer is located beneath the backlighting layer. The supplementary layer can be coupled to at least one additional backlighting source assigned to the layers and permits the respective supplementary backlighting layer to emit light from the additional backlighting source(s) in respective defined masked zones through the backlighting layer and through the LCD layer.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: June 14, 2011
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Georgios Kofidis, Gerhard Mager, Bernhard Siegmar
  • Device for regulating the backlighting of an LC display
    Patent number: 7902491
    Abstract: A device for controlling the luminosity of an illuminating device, in particular for LC-display units in household appliances, includes a sensor which is used to detect the presence of a user, and a luminosity sensor. An exchange between two different luminosity values of the illuminating device according to the presence of a user and according to the surrounding luminosity takes place in a continuous manner.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: March 8, 2011
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Lorenz Tilmann, Gerhard Mager, Bernhard Siegmar
  • Method for regulating the backlighting of a display
    Publication number: 20090278032
    Abstract: A device for controlling the luminosity of an illuminating device, in particular for LC-display units in household appliances, includes a sensor which is used to detect the presence of a user, and a luminosity sensor. An exchange between two different luminosity values of the illuminating device according to the presence of a user and according to the surrounding luminosity takes place in a continuous manner.
    Type: Application
    Filed: November 9, 2005
    Publication date: November 12, 2009
    Inventors: Lorenz Tilmann, Gerhard Mager, Bernhard Siegmar
  • Device for Backlighting a Liquid-Crystal Display Facility for a Display and/or Control Unit, in Particular in a Household Appliance
    Publication number: 20090059566
    Abstract: The aim is to provide backlighting in a liquid-crystal display unit for a display and/or operator control unit, in particular on a domestic appliance. To achieve this, a backlighting layer, to which at least one backlighting source can be coupled, is located beneath an LCD layer and at least one supplementary backlighting layer is located beneath the backlighting layer. The supplementary layer can be coupled to at least one additional backlighting source assigned to the layers and permits the respective supplementary backlighting layer to emit light from the additional backlighting source(s) in respective defined masked zones through the backlighting layer and through the LCD layer.
    Type: Application
    Filed: January 9, 2007
    Publication date: March 5, 2009
    Applicant: BSH BOSCH UND SIEMENS HAUSGERATE GMBH
    Inventors: Georgios Kofidis, Gerhard Mager, Bernhard Siegmar