Patents by Inventor Roland van Gelder

Roland van Gelder 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).

  • Publication number: 20200312824
    Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.
    Type: Application
    Filed: April 28, 2020
    Publication date: October 1, 2020
    Inventors: Jonathan S. Steckel, Jean-Jacques P. Drolet, Roland Van Gelder, Kelly C. McGroddy, Ion Bita, James Michael Perkins, Andreas Bibl, Sajjad A. Khan, James E. Pedder, Elmar Gehlen
  • Patent number: 10685940
    Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: June 16, 2020
    Inventors: Jonathan S. Steckel, Jean-Jacques P. Drolet, Roland Van Gelder, Kelly C. McGroddy, Ion Bita, James Michael Perkins, Andreas Bibl, Sajjad A. Khan, James E. Pedder, Elmar Gehlen
  • Publication number: 20190237444
    Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.
    Type: Application
    Filed: April 4, 2019
    Publication date: August 1, 2019
    Inventors: Jonathan S. Steckel, Jean-Jacques P. Drolet, Roland Van Gelder, Kelly C. McGroddy, Ion Bita, James Michael Perkins, Andreas Bibl, Sajjad A. Khan, James E. Pedder, Elmar Gehlen
  • Patent number: 10297581
    Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: May 21, 2019
    Assignee: Apple Inc.
    Inventors: Jonathan S. Steckel, Jean-Jacques P. Drolet, Roland van Gelder, Kelly C. McGroddy, Ion Bita, James Michael Perkins, Andreas Bibl, Sajjad A. Khan, James E. Pedder, Elmar Gehlen
  • Publication number: 20180190625
    Abstract: Display panels and methods of manufacture are described for down converting a peak emission wavelength of a pump LED within a subpixel with a quantum dot layer. In some embodiments, pump LEDs with a peak emission wavelength below 500 nm, such as between 340 nm and 420 nm are used. QD layers in accordance with embodiments can be integrated into a variety of display panel structures including a wavelength conversion cover arrangement, QD patch arrangement, or QD layers patterned on the display substrate.
    Type: Application
    Filed: July 5, 2016
    Publication date: July 5, 2018
    Inventors: Jonathan S. Steckel, Jean-Jacques P. Drolet, Roland van Gelder, Kelly C. McGroddy, Ion Bita, James Michael Perkins, Andreas Bibl, Sajjad A. Khan, James E. Pedder, Elmar Gehlen
  • Patent number: 9061887
    Abstract: Apparatus and method of making an improved moisture-resistant package for a MEMS device having movable parts, the package including a substrate, a translucent cover over the substrate, a seal and moisture barrier and a plurality of parallel sidewalls around the periphery of the substrate and cover. The sidewalls have ends and an area between the sidewalls, and the sidewalls separate the substrate and cover by a sufficient distance to provide clearance for the movement of the movable parts. The package is sealed using a glue layer that at least partially fills the area between the sidewalls, and lies between the ends of the sidewalls and one of the substrate or cover. The glue layer causes the substrate or cover, respectively, to adhere to the ends of the sidewalls. The glue layer and the sidewalls together prevent moisture from entering the package.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: June 23, 2015
    Assignee: Spatial Photonics, Inc.
    Inventors: Chen Hua Lin, Roland van Gelder
  • Publication number: 20130220874
    Abstract: Apparatus and method of making an improved moisture-resistant package for a MEMS device having movable parts, the package including a substrate, a translucent cover over the substrate, a seal and moisture barrier and a plurality of parallel sidewalls around the periphery of the substrate and cover. The sidewalls have ends and an area between the sidewalls, and the sidewalls separate the substrate and cover by a sufficient distance to provide clearance for the movement of the movable parts. The package is sealed using a glue layer that at least partially fills the area between the sidewalls, and lies between the ends of the sidewalls and one of the substrate or cover. The glue layer causes the substrate or cover, respectively, to adhere to the ends of the sidewalls. The glue layer and the sidewalls together prevent moisture from entering the package.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 29, 2013
    Applicant: Spatial Photonics, Inc.
    Inventors: Chen Hua Lin, Roland van Gelder
  • Publication number: 20040008291
    Abstract: A color video projection display system having an improved contrast ratio is disclosed. At least one reflective or transmissive panel, e.g., a liquid crystal on silicon (LCoS) panel, is arranged within the system to receive incident light of one or more designated colors via an input optical path. The reflective or transmissive panel modulates the incident light in accordance with corresponding applied signals, and the resulting modulated light is further processed via an output optical path to generate a viewable display. At least one low-retardance film is arranged within one of (i) the input optical path of the system between an input optical path polarizer and the panel, and (ii) the output optical path of the system between the panel and an output optical path polarizer, so as to increase a contrast ratio of the viewable display. The invention can be implemented in single-panel or multi-panel configurations.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Roland van Gelder, George Melnik
  • Patent number: 6626539
    Abstract: A color video projection display system having an improved contrast ratio is disclosed. At least one reflective or transmissive panel, e.g., a liquid crystal on silicon (LCoS) panel, is arranged within the system to receive incident light of one or more designated colors via an input optical path. The reflective or transmissive panel modulates the incident light in accordance with corresponding applied signals, and the resulting modulated light is further processed via an output optical path to generate a viewable display. At least one low-retardance film is arranged within one of (i) the input optical path of the system between an input optical path polarizer and the panel, and (ii) the output optical path of the system between the panel and an output optical path polarizer, so as to increase a contrast ratio of the viewable display. The invention can be implemented in single-panel or multi-panel configurations.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: September 30, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Roland van Gelder, George Melnik
  • Publication number: 20020159033
    Abstract: A color video projection display system having an improved contrast ratio is disclosed. At least one reflective or transmissive panel, e.g., a liquid crystal on silicon (LCoS) panel, is arranged within the system to receive incident light of one or more designated colors via an input optical path. The reflective or transmissive panel modulates the incident light in accordance with corresponding applied signals, and the resulting modulated light is further processed via an output optical path to generate a viewable display. At least one low-retardance film is arranged within one of (i) the input optical path of the system between an input optical path polarizer and the panel, and (ii) the output optical path of the system between the panel and an output optical path polarizer, so as to increase a contrast ratio of the viewable display. The invention can be implemented in single-panel or multi-panel configurations.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Roland van Gelder, George Melnik