Patents by Inventor Jeffrey B. Sampsell

Jeffrey B. Sampsell 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: 7766498
    Abstract: An illuminator for a display is provided that includes a light guide plate to substantially cover a viewable portion of the display, and a thin film light-emitting source. Light from the thin film light-emitting source is directed into an edge of the light guide plate to provide light for the viewable portion of the display.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: August 3, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7768690
    Abstract: A transmissive backlit display is disclosed. In one aspect, the backlit display comprises a backlight and an array of transmissive interferometric modulators. Each interferometric modulator comprises a fixed and moving dielectric mirror stack. The interferometric modulators cause light within the desired wavelength range to be transmitted while reflecting at least a portion of the remaining light.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: August 3, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7763546
    Abstract: Provided herein are methods for preventing the formation and accumulation of surface-associated charges, and deleterious effects associated therewith, during the manufacture of a MEMS device. In some embodiments, methods provided herein comprise etching a sacrificial material in the presence of an ionized gas, wherein the ionized gas neutralizes charged species produced during the etching process and allows for their removal along with other etching byproducts. Also disclosed are microelectromechanical devices formed by methods of the invention, and visual display devices incorporating such devices.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: July 27, 2010
    Assignee: Qualcomm MEMS Technologies, Inc.
    Inventors: Manish Kothari, Jeffrey B. Sampsell
  • Publication number: 20100172012
    Abstract: A system and method of reducing color shift in a display includes an interferometric modulator display configured to reflect light from at least one light source and through at least one converging optical element in an optical path from the light source to a viewer via the display. In one embodiment, the converging optical element comprises a diffractive optical element.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Applicant: IDC, LLC
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7750886
    Abstract: Various devices and methods of lighting a display are disclosed. In one embodiment, for example, a display device includes a transmissive display configured to be illuminated through a back surface and a reflective display configured to be illuminated through a front surface. A light source is disposed with respect to the back of the transmissive display to illuminate the transmissive display through the back surface. A light pipe is disposed with respect to the light source to receive light from the light source and is configured to propagate the light such that this light provides front illumination of the reflective display.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: July 6, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7746539
    Abstract: A method for packaging a display device and the device obtained thereof are disclosed. In one aspect, the method comprises providing a substrate. The method further comprises manufacturing an array of display elements on a back side of the substrate, the array comprising a plurality of posts between the display elements connecting electrodes of the display elements. The method further comprises providing a back plate. The method further comprises sealing the back plate to the back side of the substrate, wherein one or more posts are in contact with the back plate after sealing the back plate to the back side of the substrate.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 29, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Publication number: 20100149627
    Abstract: A microelectromechanical systems device having support structures formed of sacrificial material surrounded by a protective material. The microelectromechanical systems device includes a substrate having an electrode formed thereon. Another electrode is separated from the first electrode by a cavity and forms a movable layer, which is supported by support structures formed of a sacrificial material.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Teruo Sasagawa, Clarence Chui, Manish Kothari, SuryaPrakash Ganti, Jeffrey B. Sampsell, Chun-Ming Wang
  • Publication number: 20100147790
    Abstract: A microelectromechanical systems device having support structures formed of sacrificial material surrounded by a protective material. The microelectromechanical systems device includes a substrate having an electrode formed thereon. Another electrode is separated from the first electrode by a cavity and forms a movable layer, which is supported by support structures formed of a sacrificial material.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Teruo Sasagawa, Clarence Chui, Manish Kothari, SuryaPrakash Ganti, Jeffrey B. Sampsell, Chun-Ming Wang
  • Patent number: 7733439
    Abstract: A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: June 8, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jeffrey B. Sampsell, Russell W. Gruhlke, Mark Mienko, Gang Xu, Ion Bita
  • Publication number: 20100134503
    Abstract: The invention comprises systems and methods for controller and driver features for displays, and in particular, controller and driver features that relate to displays with bi-stable display elements. In one embodiment, such a display includes at least one driving circuit and an array comprising a plurality of bi-stable display elements, where the array is configured to be driven by the driving circuit, and where the driving circuit is programmed to receive video data and provide a subset of the received video data to the array based on a frame skip count. In some embodiments, the frame skip count is programmable or dynamically determined.
    Type: Application
    Filed: February 2, 2010
    Publication date: June 3, 2010
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jeffrey B. Sampsell, Karen Tyger, Mithran Mathew
  • Patent number: 7719617
    Abstract: Method and apparatus for use with televisions having an internal Java engine are included among the embodiments. In exemplary systems, a PCMCIA port allows the Java engine to load and execute Java applets selected by the viewer. Provision is made for system-aware applets to run concurrently with platform-independent applets on different Java display planes that are merged for display. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: May 18, 2010
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Jon Arthur Fairhurst, Henry Y. Fang, Bryan Severt Hallberg, Mark Gregory Hanley, Vishnu Kumar Shivaj Rao, Jeffrey B. Sampsell
  • Publication number: 20100118382
    Abstract: A microelectromechanical system (MEMS) device includes a first electrode, a second electrode electrically insulated from the first electrode, and a third electrode electrically insulated from the first electrode and the second electrode. The MEMS device also includes a support structure which separates the first electrode from the second electrode and a reflective element located and movable between a first position and a second position. The reflective element is in contact with a portion of the device when in the first position and is not in contact with the portion of the device when in the second position. An adhesive force is generated between the reflective element and the portion when the reflective element is in the first position. Voltages applied to the first electrode, the second electrode, and the third electrode at least partially reduce or counteract the adhesive force.
    Type: Application
    Filed: January 14, 2010
    Publication date: May 13, 2010
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Manish Kothari, Lior Kogut, Jeffrey B. Sampsell
  • Patent number: 7706050
    Abstract: A spatial light modulator includes an array of elements to modulate light in accordance with image data. The modulator has a display panel having first and second surfaces arranged adjacent to the array of elements such that the second surface is directly adjacent the array of elements to allow a viewer to view an image produced by modulation of light. The modulator may also include a light source to provide light to the display panel and illumination dots on the first surface of the display panel to reflect light from the source to the array of elements.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: April 27, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7702192
    Abstract: Systems and methods for driving a display of MEMS devices are disclosed. In one embodiment, a display device comprises an array of MEMS display elements, at least one test deflecting element, and a deflection sensing circuit connected to the test deflecting element, the deflection sensing circuit being configured to monitor deflection of the test deflecting element without actuating the test deflection element and to provide a signal indicative of one or more parameters affecting operation of the array of MEMS display elements based on the deflection.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: April 20, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7684106
    Abstract: A method of fabricating a display device includes forming a switch and forming a plurality of display elements in parallel electrical communication with the switch. The switch includes an electrode, a first contact, and a second contact. The switch is responsive to voltages applied to the electrode to selectively place the first contact and the second contact in communication with one another. Forming the switch includes a first set of patterning steps. Forming the plurality of display elements includes a second set of patterning steps. The second set of patterning steps includes the first set of patterning steps.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: March 23, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventor: Jeffrey B. Sampsell
  • Patent number: 7684104
    Abstract: Described is an apparatus, method for manufacturing, and systems comprising a MEMS device, for example, an interferometric modulator, comprising a substrate, a movable mirror, a deformable layer, and a support structure. In some embodiments, the support structure comprises a plurality of support posts. A connector secures the movable mirror secured to the deformable layer. At least one of the connector and the support post is a composite comprising a first component and a second component, where at the first component forms at least a portion of at least one of the perimeter of the connector and support post.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: March 23, 2010
    Assignee: IDC, LLC
    Inventors: Clarence Chui, Jeffrey B. Sampsell
  • Patent number: 7679812
    Abstract: A microelectromechanical systems device having support structures formed of sacrificial material surrounded by a protective material. The microelectromechanical systems device includes a substrate having an electrode formed thereon. Another electrode is separated from the first electrode by a cavity and forms a movable layer, which is supported by support structures formed of a sacrificial material.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: March 16, 2010
    Assignee: Qualcomm Mems Technologies Inc.
    Inventors: Teruo Sasagawa, Clarence Chui, Manish Kothari, SuryaPrakash Ganti, Jeffrey B. Sampsell, Chun-Ming Wang
  • Patent number: 7679627
    Abstract: The invention comprises systems and methods for controller and driver features for displays, and in particular, controller and driver features that relate to displays with bi-stable display elements. In one embodiment, such a display includes at least one driving circuit and an array comprising a plurality of bi-stable display elements, where the array is configured to be driven by the driving circuit, and where the driving circuit is programmed to receive video data and provide a subset of the received video data to the array based on a frame skip count. In some embodiments, the frame skip count is programmable or dynamically determined.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: March 16, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jeffrey B. Sampsell, Karen Tyger, Mithran Mathew
  • Patent number: 7672035
    Abstract: A separable modulator architecture is disclosed. The modulator has a mirror suspended from a flexible layer over a cavity. The flexible layer also forms supports and support posts for the mirror. An alternative separable modulator architecture has a mirror suspended over a cavity. The modulator is supported by supports and support posts. The support posts comprise a flexible layer over support post plugs. A bus structure may be formed upon the flexible layer arranged over the support posts.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: March 2, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jeffrey B. Sampsell, Mark W. Miles, Clarence Chui, Manish Kothari
  • Patent number: 7649671
    Abstract: A microelectromechanical system (MEMS) device includes a first electrode, a second electrode electrically insulated from the first electrode, and a third electrode electrically insulated from the first electrode and the second electrode. The MEMS device also includes a support structure which separates the first electrode from the second electrode and a reflective element located and movable between a first position and a second position. The reflective element is in contact with a portion of the device when in the first position and is not in contact with the portion of the device when in the second position. An adhesive force is generated between the reflective element and the portion when the reflective element is in the first position. Voltages applied to the first electrode, the second electrode, and the third electrode at least partially reduce or counteract the adhesive force.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: January 19, 2010
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Manish Kothari, Lior Kogut, Jeffrey B. Sampsell