Patents by Inventor Minhyuk AN

Minhyuk AN 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: 10354569
    Abstract: The present disclosure provides devices and techniques for correcting misalignment in a multi-display system by identifying a misalignment between a plurality of displays in the multi-display device and determining a line start position of at least one of the plurality of displays in response to identifying the misalignment. The techniques further include transmitting a first line start signal at the line start position of the at least one of the plurality of displays to correct the misalignment.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: July 16, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Minhyuk Choi, Ying Zheng, Rajesh Dighde
  • Publication number: 20190204877
    Abstract: A window includes a window that includes a first hole, a second hole, and a third hole between the first and second holes, a front protection film disposed on a front surface of the window that covers the first, second, and third holes, a first protection film disposed on a rear surface of the window that covers the first hole, a second protection film disposed on the rear surface of the window that covers the second hole, a cover disposed on the rear surface of the window and inserted into the third hole, the cover including a plurality of holes, and a cap disposed on the rear surface of the window and on the first and second protection films and the cover.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Inventors: Dong-Su Yee, Minhyuk Im, Myungan Min, Sujin Jung
  • Publication number: 20190182331
    Abstract: A head unit and a method for controlling the same are disclosed, which output the audio streams generated from a plurality of devices connected to a single head unit through Bluetooth communication. The head unit of a vehicle includes a Bluetooth communicator and a controller. The Bluetooth communicator is configured to be communicably connected to a plurality of Bluetooth devices. The controller is configured to allocate priority information based on a preset reference to the respective Bluetooth devices, and control an audio route of each of the plurality of Bluetooth devices according to the priority information so as to output all audio streams generated by the plurality of Bluetooth devices.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 13, 2019
    Inventors: Hyewon You, Minhyuk Oh, Keunhang Heo
  • Patent number: 10319802
    Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: June 11, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Minhyuk Choi, Rajesh Dighde
  • Publication number: 20190172409
    Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation).
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Inventors: Minhyuk CHOI, Ying ZHENG, Matthew Morris, Andrew CADY, Jerry Michael HILL, Gangok LEE, Rajesh DIGHDE
  • Publication number: 20190157372
    Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 23, 2019
    Inventors: Minhyuk Choi, Rajesh Dighde
  • Publication number: 20190156737
    Abstract: A display driver circuit includes a first memory in which a plurality of gamma adjustment datasets are stored, each gamma adjustment dataset of the plurality of gamma adjustment datasets corresponding with a respective amount of display degradation, a second memory in which selection instructions and compensation instructions are stored, and a processor configured via execution of the selection instructions to select one of the plurality of gamma adjustment datasets based on usage data indicative of past display operation. The processor is further configured via execution of the compensation instructions to generate drive control signaling in accordance with the selected gamma adjustment dataset to compensate for display degradation arising from the past display operation.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 23, 2019
    Inventors: Minhyuk Choi, Rajesh Dighde, Matthew Morris, Ying Zheng
  • Patent number: 10281396
    Abstract: Disclosed is a system for simultaneously measuring a surface normal vector and a surface reflection function in microscale. The system includes a light dome having a hemispherical-shaped structure and including LEDs to radiate light to an object placed therein; a macro lens installed camera arranged over the light dome to photograph the object through a hole formed at a center of the light dome under an environment in which a light is radiated from the light dome; an xyz micro-translation stage arranged under the light dome and configured to move in xyz-directions to adjust a focal distance between the macro lens installed camera and the object, and a measurement unit configured to control the light dome and the macro lens installed camera to obtain a microscale image, and configured to simultaneously measure a surface normal vector and a surface reflection function of the object based on the microscale image.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 7, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: MinHyuk Kim, Giljoo Nam, Joo Ho Lee
  • Publication number: 20190114963
    Abstract: While organic light-emitting diode (OLED) display devices are often calibrated upon commissioning to provide similar output colors in response to input signals, they are not calibrated based on varying display content. Significant variation in output color as a function of varying output display content is increasingly unacceptable to users. In an OLED display, an emissive electroluminescent layer selectively emits light in discrete areas in response to an electric current. Higher overall applied electrical currents correspond to higher overall output luminesces, however, as current is increased, attendant voltage generally drops. Variation in attendant voltage causes variation in output color.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 18, 2019
    Inventors: Minhyuk CHOI, Samu Matias KALLIO, Ying ZHENG
  • Publication number: 20190114971
    Abstract: Varying electrical currents are selectively applied to each pixel within an OLED display to create desired images. High applied electrical currents to groupings of nearby pixels create high luminance features, while low applied electrical currents to groupings of nearby pixels create low luminance features. A combination of a high luminance and low luminance features may be present on the OLED display. Pulse-width modulation (PWM) is often used to increase the current applied to the OLED display by modulating the applied current, particularly when creating low luminance features. The presently disclosed systems and methods detect a gray portion of an image to be presented, and select PWM independently of peak luminance based on the detected gray portion. The allows the OLED display to display low-luminance features at high quality, even when high-luminance features are also present within a frame.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 18, 2019
    Inventors: Minhyuk CHOI, Samu Matias KALLIO, Ying ZHENG
  • Publication number: 20190103073
    Abstract: A method for optical calibration of a plurality of displays is provided. At a manufacturing stage, a plurality of one-time programmable (OTP) values for each display is created, each OTP value including a value of manufacture gamma voltage corresponding to a manufacture luminance and color value. The OTP values are stored in non-volatile memory of the respective display. At an assembly stage, each display is connected to a respective power management integrated circuit (PMIC); assembly test voltages are applied corresponding to the manufacture gamma voltage of each stored OTP value. Differences between assembly luminance and color values of each display and an expected value as a result of applying each assembly test voltage are measured. For each display, one value of manufacture gamma voltage of a respective OTP value is selected that corresponds to a minimal difference between the assembly luminance and color values and the expected value.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 4, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventor: Minhyuk CHOI
  • Patent number: 10235962
    Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation). By dynamically adjusting the bias voltage levels, the TFT displays of the present disclosure consume lower power than their conventional counterparts and improve the lifetime of the display itself.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: March 19, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Minhyuk Choi, Ying Zheng, Matthew Morris, Andrew Cady, Jerry Michael Hill, Gangok Lee, Rajesh Dighde
  • Patent number: 10204423
    Abstract: Disclosed are techniques for more accurately estimating the pose of a camera used to capture a three-dimensional scene. Accuracy is enhanced by leveraging three-dimensional object priors extracted from a large-scale three-dimensional shape database. This allows existing feature matching techniques to be augmented by generic three-dimensional object priors, thereby providing robust information about object orientations across multiple images or frames. More specifically, the three-dimensional object priors provide a unit that is easier and more reliably tracked between images than a single feature point. By adding object pose estimates across images, drift is reduced and the resulting visual odometry techniques are more robust and accurate. This eliminates the need for three-dimensional object templates that are specifically generated for the imaged object, training data obtained for a specific environment, and other tedious preprocessing steps.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: February 12, 2019
    Assignee: Adobe Inc.
    Inventors: Vladimir Kim, Oliver Wang, Minhyuk Sung, Mehmet Ersin Yumer
  • Patent number: 10163984
    Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing subpixels in some of the pixels with transparent windows. When subpixels are replaced by transparent windows, adjacent subpixels may be overdriven to compensate for lost light from the replaced subpixels. Adjacent subpixels may also be enlarged to help compensate for lost light. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 25, 2018
    Assignee: Apple Inc.
    Inventors: Meng-Huan Ho, Minhyuk Choi, Chin-Wei Lin, Shih Chang Chang, Jae Won Choi, Jun Jiang, Rui Liu, Cheng Chen
  • Patent number: 10157590
    Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: December 18, 2018
    Assignee: Apple Inc.
    Inventors: Koorosh Aflatooni, Minhyuk Choi, Mohammad Ali Jangda, Sang Y. Youn, Yafei Bi, Jean-Pierre Guillou, Wei Y. Yao
  • Publication number: 20180342200
    Abstract: A graphical display device includes a plurality of color-specific subpixels spatially distributed across a display region. Subpixel wear compensation is performed for some or all of the color-specific subpixels. For each color-specific subpixel, the compensation may include sampling one or more display signals directed to the color-specific subpixel to obtain a time-series of sampled values. The compensation may further include storing, in non-volatile storage, compensation data for the color-specific subpixel derived from the time-series of sampled values. The compensation may further include driving the color-specific subpixel based on the compensation data.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Matthew MORRIS, Ying ZHENG, Minhyuk CHOI, Rajesh Manohar DIGHDE
  • Patent number: 10068551
    Abstract: An electronic device includes a first digital-to-analog converter (DAC) configured to provide brightness control for a first subset of pixels of a display and a second DAC configured to provide brightness control for a second subset of pixels of the display. A display controller selectively operates the second DAC to provide the brightness control for the second subset of pixels while simultaneously operating the first DAC to provide the brightness control for the first subset of pixels of the display.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 4, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Minhyuk Choi, Andrew N. Cady, Ying Zheng
  • Publication number: 20180246365
    Abstract: A display device comprises a chassis and a cover glass substrate. A display unit is positioned between the cover glass substrate and the chassis. The display unit comprises a backlight housing comprising a shelf between the cover glass substrate and a base. A light guide plate is positioned within the backlight housing. A display glass substrate is positioned between the light guide plate and the cover glass substrate, with the display glass substrate bonded to the shelf.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 30, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Minhyuk CHOI, Kabir SIDDIQUI, Rajesh Manohar DIGHDE
  • Publication number: 20180246355
    Abstract: A display device comprises a first chassis and a first backlight housing attached to the first chassis and comprising a first wall. A first optical film layer between a first light guide plate and a first rear polarizer comprises a secured end bonded to the first wall. A second chassis is rotatably coupled to the first chassis and includes a second backlight housing attached to the second chassis and comprising a second wall. A second optical film layer between a second light guide plate and a second rear polarizer includes a secured end bonded to the second wall.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 30, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Rajesh Manohar DIGHDE, Kabir SIDDIQUI, Minhyuk CHOI
  • Publication number: 20180231827
    Abstract: Described are examples of display devices including a display panel comprised of a transparent layer, a color filter layer adjacent to the transparent layer, wherein the color filter layer comprises a matrix of colored light filters, and a black matrix layer comprising a base portion disposed on the transparent layer between two of the different colored light filters and an extension portion that extends into the color filter layer between the two colored light filters to block a light path that may otherwise traverse both of the two colored light filters. The base portion and the extension portion differ in a height dimension that is substantially perpendicular to the transparent layer.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 16, 2018
    Inventors: Minhyuk CHOI, Gangok LEE, Jignesh V. Gandhi, Camilo LEON, Andrew N. CADY, Rajesh DIGHDE