Patents by Inventor Jae Hyeong Seo

Jae Hyeong Seo 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: 9293076
    Abstract: This disclosure provides systems, methods and apparatus for an arrangement of pixels and interconnects in a display. In one aspect, polarities of pixels may be in a dot inversion configuration, or checkerboard pattern, to reduce the visibility of flicker. Various interconnect alternatively couple between modules in different columns or rows to provide dot inversion.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: March 22, 2016
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Edward Keat Leem Chan, Bing Wen, Cheonhong Kim, Wilhelmus Johannes Robertus Van Lier, Chih-Hsiang Ho, Rihui He, Ming-Hau Tung, Alok Govil, Jae Hyeong Seo
  • Publication number: 20150349000
    Abstract: This disclosure provides apparatuses and methods for fabricating TFTs and storage capacitors on a substrate. In one aspect, an apparatus includes a TFT and a storage capacitor, where the TFT includes a first metal layer, a second metal layer, and a semiconductor layer, where the semiconductor layer is protected by a first etch stop layer and a second etch stop layer. The storage capacitor includes the second etch stop layer as a dielectric between the first metal layer and the second metal layer. In another aspect, an apparatus includes a TFT and a storage capacitor, where the TFT includes a first metal layer, a dielectric layer, and a semiconductor layer, where the semiconductor layer is protected by an etch stop layer. The storage capacitor includes the dielectric layer as a dielectric between the first metal layer and the semiconductor layer.
    Type: Application
    Filed: October 13, 2014
    Publication date: December 3, 2015
    Inventors: Cheonhong Kim, Tze-Ching Fung, Jae Hyeong Seo, Tallis Young Chang
  • Publication number: 20150109265
    Abstract: This disclosure provides systems, methods and apparatus for an arrangement of pixels and interconnects in a display. In one aspect, polarities of pixels may be in a dot inversion configuration, or checkerboard pattern, to reduce the visibility of flicker. Various interconnect alternatively couple between modules in different columns or rows to provide dot inversion.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 23, 2015
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Edward Keat Leem Chan, Bing Wen, Cheonhong Kim, Wilhelmus Johannes Robertus Van Lier, Chih-Hsiang Ho, Rihui He, Ming-Hau Tung, Alok Govil, Jae Hyeong Seo
  • Publication number: 20140210866
    Abstract: Display elements of a display array include at least one fixed layer and a movable layer. The movable layer is positioned with respect to the at least one fixed layer by placing a charge on the movable layer and applying a voltage to the at least one fixed layer. The at least one fixed layer may be two layers positioned on either side of the movable layer. The movable layer may be positioned in a desired position when driving an array of display elements by executing a reset stage, a charging stage, and a bias stage.
    Type: Application
    Filed: August 28, 2013
    Publication date: July 31, 2014
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jae Hyeong Seo, Alok Govil, Ming-Hau Tung, Russel A. Martin
  • Publication number: 20130120327
    Abstract: This disclosure provides systems, methods and apparatus for storage capacitors. In one aspect, a device includes an array having at least a first display element and a second display element, at least one switch configured to control a flow of charge between a source and the first display element, and at least one interferometric optical mask structure disposed in a non-active area of the array between the first display element and the second display element. The optical mask structure includes a storage capacitor formed by a first conductive layer and a second conductive layer. The storage capacitor is electrically coupled to the at least one switch and the first display element.
    Type: Application
    Filed: June 26, 2012
    Publication date: May 16, 2013
    Applicant: Qualcomm Mems Technologies, Inc.
    Inventors: Jae Hyeong Seo, Ming-Hau Tung, Marc M. Mignard, Rihui He
  • Publication number: 20130120416
    Abstract: This disclosure provides systems, methods and apparatus for storage capacitors. In one aspect, an electromechanical systems (EMS) device includes a substrate, an optical stack disposed over the substrate, a mechanical layer positioned over the optical stack, and a storage capacitor. The optical stack includes a stationary electrode and at least one dielectric layer disposed over the stationary electrode, and the storage capacitor includes a first plate, a second plate and a dielectric structure disposed between the first and second plates. The first plate includes a portion of the mechanical layer positioned over an optically non-active region of the device, and the dielectric structure of the storage capacitor includes a portion of the at least one dielectric layer of the optical stack.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 16, 2013
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jae Hyeong Seo, Ming-Hau Tung, Marc M. Mignard
  • Publication number: 20120274611
    Abstract: This disclosure provides systems, methods and apparatus relating to pixel designs for use in active matrix displays which employ poly-silicon (p-Si) thin-film transistors (TFTs) having dual gate structures to control the pixels. The poly-silicon island of the TFT is configured to take advantage of the black mask area attributable to other non-reflective display components, thus enhancing the fill factor of the display.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 1, 2012
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Jae Hyeong Seo, Marc Maurice Mignard, Ming-Hau Tung, Russel Allyn Martin
  • Publication number: 20110261088
    Abstract: This disclosure provides methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling analog display elements. In one aspect, a control scheme can be used for controlling analog display elements, including interferometric modulators. This control scheme can be used to drive the analog display elements to a plurality of discrete different states, and can be referred to as “digital” control of the display element state.
    Type: Application
    Filed: March 16, 2011
    Publication date: October 27, 2011
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Jae Hyeong Seo, Marc M. Mignard, Alok Govil, Russel A. Martin
  • Publication number: 20110109615
    Abstract: A method of writing a display image to a display having an array of pixels according to a selected driving sequence. One driving sequence includes addressing each color row in a line of the array in a sequence before addressing a second line. Another driving sequence includes addressing a first color row of each line in the array before addressing a second color row of each line in the array.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 12, 2011
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Marc Maurice Mignard, Jae Hyeong Seo, Pavankumar Mulabagal