Patents by Inventor Jean-Pierre S. Guillou

Jean-Pierre S. Guillou 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: 20200192500
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Patent number: 10592021
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Publication number: 20190073962
    Abstract: A display may have an active area that includes display pixels. The display may include an inactive notch region that extends into the active area. Data lines may provide image data from display driver circuitry to the display pixels. The image data may include data signals that correspond to portions of the display that do not include pixels, such as the inactive notch region. The null data signals may cause nonuniformities in the displayed image. The null data signals may be adjusted to minimize the nonuniformities. Null data signals corresponding to the inactive notch region may be adjusted to have gray levels that gradually decrease with distance from the border between the inactive notch and the active area. All of the data signals corresponding to the inactive notch may be set to a uniform gray level.
    Type: Application
    Filed: May 24, 2018
    Publication date: March 7, 2019
    Inventors: Koorosh Aflatooni, Warren S. Rieutort-Louis, Jean-Pierre S. Guillou, Pierre-Yves Emelie, Myung-Je Cho, Marc Albrecht, Graeme M. Williams, Sean C. Chang, Zhao Wang
  • Patent number: 10170711
    Abstract: A thin-film transistor layer, an organic light-emitting diode layer, and other layers may be used in forming an array of pixels on a substrate in a display. Vias may be formed through one or more layers of the display such as the substrate layer to form vertical signal paths. The vertical signal paths may convey signals between display driver circuitry underneath the display and the pixels. The vias may pass through a polymer layer and may contact pads formed within openings in the substrate. Vias may pass through a glass support layer. Metal traces may be formed in the thin-film transistor layer to create signal paths such as data lines and gate lines. Portions of the metal traces may form vias through a polymer layer such as a substrate layer or a polymer layer that has been formed on top of the substrate layer.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: January 1, 2019
    Assignee: Apple Inc.
    Inventors: Jason C. Sauers, Jean-Pierre S. Guillou, Peter J. Kardassakis, Shaowei Qin, Yi Tao
  • Patent number: 10163388
    Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: December 25, 2018
    Assignee: Apple Inc.
    Inventors: Yifan Zhang, Paul S. Drzaic, Chieh-Wei Chen, Jean-Pierre S. Guillou, Koorosh Aflatooni
  • Publication number: 20180314355
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 1, 2018
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Patent number: 10031268
    Abstract: An organic light-emitting diode display may have an active area that contains pixels and an inactive area. The inactive area of the display may be provided with opaque masking layer structures having an appearance that matches the active area of the display when the pixels are off and are not displaying images. The opaque masking layer structures may include a polymer layer coated with a layer of metal. The display may have pixels with anodes and a cathode layer. The anodes may be formed from metal pads. Dummy structures such as a dummy cathode and dummy anodes may be formed in the inactive area. A circular polarizer in the display may overlap the active area and the inactive area or may overlap the active area without overlapping some or all of the inactive area.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 24, 2018
    Assignee: Apple Inc.
    Inventors: Erik G. de Jong, Jean-Pierre S. Guillou
  • Patent number: 10019086
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: July 10, 2018
    Assignee: APPLE INC.
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Publication number: 20170322357
    Abstract: An organic light-emitting diode display may have an active area that contains pixels and an inactive area. The inactive area of the display may be provided with opaque masking layer structures having an appearance that matches the active area of the display when the pixels are off and are not displaying images. The opaque masking layer structures may include a polymer layer coated with a layer of metal. The display may have pixels with anodes and a cathode layer. The anodes may be formed from metal pads. Dummy structures such as a dummy cathode and dummy anodes may be formed in the inactive area. A circular polarizer in the display may overlap the active area and the inactive area or may overlap the active area without overlapping some or all of the inactive area.
    Type: Application
    Filed: July 21, 2017
    Publication date: November 9, 2017
    Inventors: Erik G. de Jong, Jean-Pierre S. Guillou
  • Patent number: 9753195
    Abstract: An organic light-emitting diode display may have an active area that contains pixels and an inactive area. The inactive area of the display may be provided with opaque masking layer structures having an appearance that matches the active area of the display when the pixels are off and are not displaying images. The opaque masking layer structures may include a polymer layer coated with a layer of metal. The display may have pixels with anodes and a cathode layer. The anodes may be formed from metal pads. Dummy structures such as a dummy cathode and dummy anodes may be formed in the inactive area. A circular polarizer in the display may overlap the active area and the inactive area or may overlap the active area without overlapping some or all of the inactive area.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 5, 2017
    Assignee: Apple Inc.
    Inventors: Erik G. de Jong, Jean-Pierre S. Guillou
  • Patent number: 9612152
    Abstract: An electronic device includes a transparent surface, a light emitting device that emits light through the transparent surface, and a light sensor for receiving ambient light and providing an ambient light value. A retarder and a linear polarizer are placed between the transparent surface and the light emitting device. The retarder and linear polarizer may attenuate internal reflections from the transparent surface. The light sensor may have two channels and a second linear polarizer may attenuate the ambient light directed toward a second channel. A second retarder may be used with the second linear polarizer to attenuate the ambient light directed toward the second channel. A light detection circuit may use the difference between the two channels of the light sensor to provide the ambient light value.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: April 4, 2017
    Assignee: Apple Inc.
    Inventors: Erik G. deJong, Jean-Pierre S. Guillou, Koorosh Aflatooni
  • Publication number: 20170076659
    Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.
    Type: Application
    Filed: November 9, 2015
    Publication date: March 16, 2017
    Inventors: Yifan Zhang, Paul S. Drzaic, Chieh-Wei Chen, Jean-Pierre S. Guillou, Koorosh Aflatooni
  • Publication number: 20160379557
    Abstract: An organic light-emitting diode display may have an active area that contains pixels and an inactive area. The inactive area of the display may be provided with opaque masking layer structures having an appearance that matches the active area of the display when the pixels are off and are not displaying images. The opaque masking layer structures may include a polymer layer coated with a layer of metal. The display may have pixels with anodes and a cathode layer. The anodes may be formed from metal pads. Dummy structures such as a dummy cathode and dummy anodes may be formed in the inactive area. A circular polarizer in the display may overlap the active area and the inactive area or may overlap the active area without overlapping some or all of the inactive area.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 29, 2016
    Inventors: Erik G. de Jong, Jean-Pierre S. Guillou
  • Patent number: 9524676
    Abstract: A display may receive image data to be displayed for a user of an electronic device. Display driver circuitry in the display may analyze the data to detect static data. The image data may contain static frames of data or static portions of a frame of data. In response to detection of static data, the display driver circuitry can take actions to avoid display damage due to burn-in effects. The display driver circuitry may reduce a peak luminance value associated with a peak luminance control algorithm, may reduce display brightness, may map image data to reduced brightness levels, or may take other actions to ensure that display pixels in the display are not damaged. Temperature information may be used in determining how to classify information as static data and in determining how significantly to reduce display pixel drive currents in response to the detection of static image data.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: December 20, 2016
    Assignee: Apple Inc.
    Inventors: Yafei Bi, Wei H. Yao, Ahmad Al-Dahle, Jean-Pierre S. Guillou, Hyunwoo Nho, Koorosh Aflatooni
  • Publication number: 20160329386
    Abstract: A thin-film transistor layer, an organic light-emitting diode layer, and other layers may be used in forming an array of pixels on a substrate in a display. Vias may be formed through one or more layers of the display such as the substrate layer to form vertical signal paths. The vertical signal paths may convey signals between display driver circuitry underneath the display and the pixels. The vias may pass through a polymer layer and may contact pads formed within openings in the substrate. Vias may pass through a glass support layer. Metal traces may be formed in the thin-film transistor layer to create signal paths such as data lines and gate lines. Portions of the metal traces may form vias through a polymer layer such as a substrate layer or a polymer layer that has been formed on top of the substrate layer.
    Type: Application
    Filed: April 5, 2016
    Publication date: November 10, 2016
    Inventors: Jason C. Sauers, Jean-Pierre S. Guillou, Peter J. Kardassakis, Shaowei Qin, Yi Tao
  • Patent number: 9488862
    Abstract: An electronic device may be provided with a display. The display may include a liquid crystal display cell and an organic light-emitting diode backlight unit. The liquid crystal display cell may include a color filter layer, a liquid crystal layer, and a thin-film transistor layer. The organic light-emitting diode backlight unit may include organic emissive material formed on a substrate. The organic emissive material may generate backlight for liquid crystal display cell. Display pixels in the liquid crystal display cell may control the emission of the backlight from the display. The organic light-emitting diode backlight unit may be attached to the display using adhesive, laminated to a polarizer layer of the display cell, or may be integrated into the liquid crystal display cell. The backlight unit may include conductive vias or bent extended edge portions for coupling the backlight unit to control circuitry.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: November 8, 2016
    Assignee: Apple Inc.
    Inventors: David A. Doyle, Paul S. Drzaic, Jean-Pierre S. Guillou, Joshua G. Wurzel
  • Publication number: 20160274690
    Abstract: An electronic device may be provided with a display. The display may be a variable frame rate display capable of adaptively adjusting a frame rate at which display frames are displayed in response to information associated with the current state of operation of the device. The information may be gathered using control circuitry in the electronic device. The control circuitry may gather the information for adjusting the frame rate by monitoring the electronic device power supply configuration, other device components, the type of content to be displayed, and user-input signals. The control circuitry may adjust the frame rate based on the gathered information by increasing or decreasing the frame rate. The control circuitry may be formed as a portion of display control circuitry for the device such as a display driver integrated circuit or may be formed as a portion of storage and processing circuitry external to the display.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: Brijesh Tripathi, Jean-Pierre S. Guillou
  • Publication number: 20160064947
    Abstract: One or more operations in an electronic device can be adjusted based on environment data, such as temperature data and/or humidity data. The electronic device may be, for example, a receiver device or a transmitter device in an inductive energy transfer system. Example operations that may be adjusted based on environmental data include, but are not limited to, the brightness of a display or a haptic output produced by a haptic mechanism.
    Type: Application
    Filed: August 20, 2015
    Publication date: March 3, 2016
    Inventors: Amaury J. Heresztyn, Nagarajan Kalyanasundaram, John M. Ananny, Keith Cox, Frank F. Liang, Eugene Y. Kim, Mushtaq A. Sarwar, Jim C. Hwang, Jean-Pierre S. Guillou, Paul S. Drzaic, Peter M. Arnold, Storrs T. Hoen, Douglas A. Scott, Anthony J. Guetta
  • Publication number: 20150122978
    Abstract: An electronic device includes a transparent surface, a light emitting device that emits light through the transparent surface, and a light sensor for receiving ambient light and providing an ambient light value. A retarder and a linear polarizer are placed between the transparent surface and the light emitting device. The retarder and linear polarizer may attenuate internal reflections from the transparent surface. The light sensor may have two channels and a second linear polarizer may attenuate the ambient light directed toward a second channel. A second retarder may be used with the second linear polarizer to attenuate the ambient light directed toward the second channel. A light detection circuit may use the difference between the two channels of the light sensor to provide the ambient light value.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 7, 2015
    Applicant: Apple Inc.
    Inventors: Erik G. deJong, Jean-Pierre S. Guillou, Koorosh Aflatooni
  • Publication number: 20140375704
    Abstract: A display may receive image data to be displayed for a user of an electronic device. Display driver circuitry in the display may analyze the data to detect static data. The image data may contain static frames of data or static portions of a frame of data. In response to detection of static data, the display driver circuitry can take actions to avoid display damage due to burn-in effects. The display driver circuitry may reduce a peak luminance value associated with a peak luminance control algorithm, may reduce display brightness, may map image data to reduced brightness levels, or may take other actions to ensure that display pixels in the display are not damaged. Temperature information may be used in determining how to classify information as static data and in determining how significantly to reduce display pixel drive currents in response to the detection of static image data.
    Type: Application
    Filed: April 28, 2014
    Publication date: December 25, 2014
    Applicant: Apple Inc.
    Inventors: Yafei Bi, Wei H. Yao, Ahmad Al-Dahle, Jean-Pierre S. Guillou, Hyunwoo Nho, Koorosh Aflatooni