Patents Examined by Michael J Jansen, II
  • Patent number: 11817058
    Abstract: A light emitting display device includes a display panel configured to display an image, a data driver configured to supply a data voltage to data lines of the display panel, and a sensing circuit configured to obtain a sensing voltage through sensing lines of the display panel after reflecting a negative impedance value canceling impedance differences of the sensing lines.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: November 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Yo Han Hong, Kyung Rok Kim, Dong Kyu Woo
  • Patent number: 11817029
    Abstract: A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: November 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kihyun Pyun, Heesook Park
  • Patent number: 11810522
    Abstract: A pixel circuit driving method of controlling an operation of a light-emitting element provided in a pixel of a display panel may comprise: applying pulse amplitude modulation (PAM) signals having a plurality of levels to a first terminal of a first transistor having a second terminal connected to a control terminal of a second transistor configured to drive the light-emitting element with a current according to a gray scale required for the light-emitting element; and applying a PAM signal of any one level selected from the PAM signals to the control terminal of the second transistor during each sub-frame time corresponding to a turn-on time of the first transistor controlled by a pulse width modulation (PWM) signal having a plurality of sub-frames in a single frame according to the gray scale.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: November 7, 2023
    Assignees: Electronics and Telecommunications Research Institute, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Chun Won Byun, Chan Mo Kang, Nam Sung Cho, Byong Deok Choi, Yong Duck Kim
  • Patent number: 11810394
    Abstract: The present invention provides a fingerprint identification panel and the fingerprint identification circuit thereof, which comprise a gate driving circuit, a source driving circuit, and a detection circuit. The gate driving circuit is coupled to a plurality of gate lines, outputs a plurality of gate signals to the plurality of gate lines, and controls a state transition of the plurality of gate signals. The source driving circuit is coupled to a plurality of source lines. The detection circuit is coupled to the plurality of source lines or to a portion of the plurality of source lines. The detection circuit detects the levels of the plurality of signals on the coupled source lines when the state of the gate signal is changed and generates a plurality of detection signals.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 7, 2023
    Assignee: Sitronix Technology Corp.
    Inventor: Min-Nan Liao
  • Patent number: 11810488
    Abstract: A method of driving a display device. The display device comprises a liquid crystal panel, a display engine and a hologram engine. The liquid crystal display panel comprising a plurality of pixels. The display device comprises a display engine arrange to drive each pixel of the plurality of pixels during each display interval of a plurality of display intervals defined by the display device. Each pixel is driven in accordance with a drive signal. The drive signal may comprise a pixel voltage for each pixel. The display engine is arranged to invert the polarity of the drive signal every display interval. The hologram engine is arranged to send multi-level phase holograms for display to the display engine. The method comprises displaying the multi-level phase holograms in immediately consecutive display intervals without field inversion.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: November 7, 2023
    Assignee: Dualitas Ltd
    Inventor: Jamieson Christmas
  • Patent number: 11804170
    Abstract: A display device of the present inventive concept includes a processor supplying grayscale data in active periods of frame periods and stopping supply of the grayscale data in blank periods of the frame periods; a switch controller generating a first switch control signal when a blank period is longer than a predetermined period, and generating a second switch control signal when the blank period ends; a power supply supplying a voltage different from a first power voltage to a first power line when the first switch control signal is received and supplying the first power voltage to the first power line when the second switch control signal is received; and pixels commonly connected to the first power line.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: October 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyuk Kim, Yang Hwa Choi, Jung Hwan Hwang
  • Patent number: 11798509
    Abstract: A display driver drives a display device including a plurality of data lines and a demultiplexer. The demultiplexer includes a plurality of first switches connected to the respective plurality of data lines, and a series of driving voltages including a plurality of driving voltages is supplied via a first wiring. The demultiplexer supplies the plurality of driving voltages to the respective plurality of data lines via the plurality of first switches. The display driver includes: a voltage multiplexing part that generates the series of driving voltages; a second switch connected between the voltage multiplexing part and the first wiring; and a controller connected to the plurality of first switches and the second switch.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 24, 2023
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Hiroyoshi Ichikura
  • Patent number: 11790854
    Abstract: An electronic device includes a display panel including pixels respectively connected to scan lines, scan stages corresponding to the scan lines, where each of the scan stages receives a carry signal, and outputs a scan signal, masking circuits electrically connected to some of the scan stages, respectively, where each of the masking circuits outputs a masking carry signal in response to a masking signal and the scan signal, and transmission circuits electrically connected to others of the scan stages, respectively, where each of the transmission circuits outputs the scan signal output from a corresponding scan stage among the scan stages. A j-th (j is an integer greater than 1) scan stage among the scan stages receives one of the scan signal output from a (j?1)-th scan stage and the masking carry signal as the carry signal.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Heerim Song, Gyungsoon Park, Jinseok Jeong
  • Patent number: 11790857
    Abstract: A display device includes a display panel including data lines and pixels electrically connected to the data lines. The data driver supplies data signals to the data lines. The data driver includes: a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo Yeon Kim, Tae Gon Im, Jong Jae Lee, Dae Gwang Jang
  • Patent number: 11790836
    Abstract: A display module including a display panel comprising a plurality of pixels each comprising a plurality of sub pixels, the pixels being disposed on a plurality of row lines of the display panel and a driver. The driver being configured to apply a pulse width modulation (PWM) data voltage to the sub pixels in a sequential order of the row lines; and drive the display panel such that the sub pixels included in a plurality of consecutive row lines among the plurality of row lines emit light, in the sequential order of the row lines, for a time corresponding to the applied PWM data voltage.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: October 17, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jinho Kim, Yong-Sang Kim, Daisuke Kawae, Junichi Yamashita, Takashige Fujimori, Donggun Oh, Jongsu Oh, Tetsuya Shigeta
  • Patent number: 11782594
    Abstract: A display apparatus includes circuitry to display a display area at a first location. The display area is a portion of an input receiving area for receiving hand drafted input. The circuitry selects an object to be retained in the display area based on a user operation, receives an operation of moving the display area to a second location different from the first location in the input receiving area, and displays the display area in which the object is retained at the second location according to the operation of moving the display area.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: October 10, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kanae Igarashi, Susumu Fujioka
  • Patent number: 11783771
    Abstract: Disclosed are a display apparatus and a method for controlling same. The disclosed display apparatus and method for controlling same execute a first operation and a second operation to prevent afterimages from appearing on a display panel, the afterimages being significantly reduced by executing the second operation using the history of the first operation.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 10, 2023
    Assignee: LG ELECTRONICS INC.
    Inventor: Shin Ho Park
  • Patent number: 11776484
    Abstract: A display device of the invention includes a pixel unit including first pixels which display a first color; and a data driver which supplies first data voltages to the first pixels. The data driver includes: a first master gamma block including first master amplifiers which generate first reference gamma voltages; a first slave gamma block which generates first gamma voltages by dividing the first reference gamma voltages; and a first decoder which provides some of the first gamma voltages as the first data voltages, and each of the first master amplifiers is enabled or disabled based on a maximum luminance of the pixel unit.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Ho Lim, Hyun Ha Yang, Myeong Bin Lim
  • Patent number: 11776498
    Abstract: Disclosed are method and apparatus for compensating for image quality of liquid crystal display device, and a terminal device. The method includes: acquiring RGB value of each pixel in image information output by the liquid crystal display device at a predetermined time interval within preset time period and calculating RGB sum of the RGB values of each pixel, when a duration of display on a screen of the liquid crystal display device is greater than or equal to a preset duration; selecting a RGB sum with the maximum value from the individual RGB sums as a first compensation evaluation value; and compensating for the RGB value of each pixel according to the first compensation evaluation value, each of the RGB sums, an acquired RGB offset compensation value, and the RGB value of each pixel, if the first compensation evaluation value is greater than or equal to a first compensation threshold.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: October 3, 2023
    Assignee: SHENZHEN CHUANGWEI-RGB ELECTRONICS CO., LTD.
    Inventor: Yuming Dai
  • Patent number: 11769458
    Abstract: A display device includes a display unit including a first pixel, a second pixel disposed adjacent to the first pixel in a first direction, a third pixel disposed adjacent to the first pixel in a second direction crossing the first direction, and a fourth pixel disposed adjacent to the third pixel in the first direction. Each of the first to fourth pixels includes a first sub-pixel and a second sub-pixel. The display device further includes a data driver that outputs a plurality of data voltages, a selective output unit that outputs the data voltages to the first to fourth pixels in a different order for each of a plurality of frames, and a scan driver that outputs a first scan signal to the first and second pixels and outputs a second scan signal, which is delayed from the first scan signal, to the third and fourth pixels.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Wook Yang, Soon-Dong Kim, Changnoh Yoon
  • Patent number: 11762481
    Abstract: In some implementations, an apparatus may include a housing enclosing a circuitry may include a processor and a memory, the housing forming a handgrip. In addition, the apparatus may include a plurality of light sensors arranged in a particular configuration, each of the plurality of light sensors coupled to an exterior the housing via a sensor arm. Also, the apparatus may include one or more controls mounted on the exterior of the housing and electrically coupled to the circuitry. The apparatus can include one or more antenna mounted on an exterior of the housing; and a transmitter connected to the circuitry and electrically connected to the one or more antenna to send data from the apparatus via a wireless protocol. The apparatus can include an electronic device for mounting an electronic device to the housing, the electronic device configured to execute an application for an immersive content generation system.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: September 19, 2023
    Assignee: LUCASFILM ENTERTAINMENT COMPANY LTD.
    Inventors: Michael Jutan, David Hirschfield, Robert Derry, Gary Martinez
  • Patent number: 11755146
    Abstract: An electronic device, detects a touch input. After a latency period, the device delivers to an application a sequence of input events that represent the touch input, including, in sequence: a first input event that represents the touch input at a first input time and is delivered at a first delivery time, a second input event that represents the touch input at a second input time and is delivered at a second delivery time, and a third input event that represents the touch input at a third input time and is delivered at a third delivery time, a time interval between the second input time and the second delivery time is smaller than a time interval between the first input time and the first delivery time, and a time interval between the third input time and the third delivery time is smaller than the time interval between the second input time and the second delivery time.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: September 12, 2023
    Assignee: APPLE INC.
    Inventors: Aleksandr Chugunov, Ari Y. Benbasat, Brent W. Schorsch, Michael T. Turner, Stephen C. Moseley, Steven S. Noble, Giovanni M. Agnoli, Jacob Z. Weiss, Joshua C. Weinberg, Yiqiang Nie
  • Patent number: 11741889
    Abstract: A display device includes: a pixel component including pixels; a timing controller, which generates adjusted image data by converting grayscale values of input image data based on a gain value and generates first and second control signals control signal in response to an input control signal; a scan driver, which supplies a scan signal to the pixels in response to the first control signal; a data driver, which generates a data signal corresponding to the adjusted image data and supplies the data signal to the pixels based on the second control signal and the adjusted image data, and an image controller, which analyzes an input image in the input image data and gradually decreases the gain value during a first control period when the input image is a still image.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang Mi Lee, Ki Hyun Pyun, Hyun Joo Seo
  • Patent number: 11741900
    Abstract: The embodiments relate to a display device that includes an input terminal through which a feedback voltage of a high-potential driving voltage is received from a display panel. An output terminal is included through which a high reference voltage and a low reference voltage generated on the basis of the feedback voltage are output. A flexible printed circuit board (FPCB) includes at least one capacitor connected between the input terminal and the output terminal.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: August 29, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Wonsuk Lee, Joonmo Yang
  • Patent number: 11726581
    Abstract: In some implementations, an apparatus may include a housing enclosing a circuitry may include a processor and a memory, the housing forming a handgrip. In addition, the apparatus may include a plurality of light sensors arranged in a particular configuration, each of the plurality of light sensors coupled to an exterior the housing via a sensor arm. Also, the apparatus may include one or more controls mounted on the exterior of the housing and electrically coupled to the circuitry. The apparatus can include one or more antenna mounted on an exterior of the housing; and a transmitter connected to the circuitry and electrically connected to the one or more antenna to send data from the apparatus via a wireless protocol. The apparatus can include an electronic device for mounting an electronic device to the housing, the electronic device configured to execute an application for an immersive content generation system.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: August 15, 2023
    Assignee: LUCASFILM ENTERTAINMENT COMPANY LTD.
    Inventors: Michael Jutan, David Hirschfield, Robert Derry, Gary Martinez