Patents Examined by Chanh D. Nguyen
  • Patent number: 11468821
    Abstract: The disclosure provides a source driving circuit adapted to a display panel. The source driving circuit includes a data channel and a control circuit. The data channel is configured to be coupled to a data line of the display panel and drive the data line of the display panel sequentially according to first display data and second display data. The first display data corresponds to a first scan line of the display panel, and the second display data corresponds to a second scan line of the display panel next to the first scan line of the display panel. The control circuit is coupled to the data channel and is configured to control a time point that the data channel outputs the second display data according to similarity between the first display data and the second display data.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventor: Cheng-Tsu Hsieh
  • Patent number: 11468854
    Abstract: Aspects of the subject technology relate to control circuitry for light-emitting diodes. The control circuitry may include feedforward control and a feedback control for a power supply for the light-emitting diodes. The feedforward control may include host circuitry for the device that determines a maximum zone current, a maximum row current, and the maximum row-to-row current step for an upcoming backlight frame while a current backlight frame is being executed. A headroom voltage for the upcoming backlight frame is determined based on the maximum zone current, the maximum row current, and/or the maximum row-to-row current step and provided to the power supply so that the power supply can settle at a corresponding supply voltage before the upcoming backlight frame is executed. The feedback control utilizes dynamic thresholds determined for each backlight frame to fine tune the feedforward-determined headroom voltage.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: October 11, 2022
    Assignee: Apple Inc.
    Inventors: Vehbi Calayir, James E. Brown
  • Patent number: 11468841
    Abstract: An emission control driver includes: a plurality of stages having: a first circuit portion configured to generate a first control signal at a first node and a second control signal at a second node; a second circuit portion configured to control a voltage level of the first control signal; a third circuit portion configured to generate a third control signal based on the first control signal, the second control signal, and the second clock signal; a first output transistor configured to output a first voltage as the emission control signal in response to the first control signal; and a second output transistor configured to output a second voltage as the emission control signal, and wherein the third circuit portion comprises a first capacitor configured to maintain a substantially constant voltage between both electrodes while each of the plurality of stages outputs the emission control signal.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: October 11, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Minwoo Byun, Jongwon Park
  • Patent number: 11462179
    Abstract: A liquid crystal display device includes a first liquid crystal display panel of a field sequential type, a second liquid crystal display panel of a color filter type disposed on a back face side of the first liquid crystal display panel, and a backlight configured to emit white light on a back face side of the second liquid crystal display panel.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11460921
    Abstract: Embodiments of the invention are directed to a system, method, and computer program product for wireless communication between a brain activity morning system and a resource. The system first transmits a request for a password associated with a resource account based on determining a user is utilizing a brain activity measuring device. The system determines, based on a first brain activity signal, that the first brain activity signal indicates the password associated with the resource account. The system can also perform a resource transaction based on the first brain activity sign and the resource account.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 4, 2022
    Assignee: BANK OF AMERICA CORPORATION
    Inventors: Sandeep Kumar Chauhan, Ravi Kumar Kesani
  • Patent number: 11450259
    Abstract: The present application discloses a driving method and a driving system for a display panel. The driving method includes: dividing the display panel into two compensation regions in units of sub-pixels; and outputting a driving voltage according to the compensation region which a sub-pixel belongs to.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 20, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wenqin Zhao, Wei Chen
  • Patent number: 11449139
    Abstract: A method for passively calibrating and verifying eye tracking in a surgical robotic system. The gaze of a user facing a user display of a user console of a surgical robotic system is tracked while the user is using a user interface device (UID). When a user interaction to the UID is detected, an expected gaze position on the display of the user console is determined without instructing the user to look at the expected gaze position. The latter becomes a reference gaze point of the user at the time of detected user action. The measured gaze point of the user is compared with an acceptable threshold of the reference gaze point, and in response to a determination of a mismatch, calibration parameters used by the tracking are adjusted according to the reference gaze point. Other aspects are also described and claimed.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 20, 2022
    Assignee: VERB SURGICAL INC.
    Inventors: Anette Lia Freiin von Kapri, Denise Miller, Joan Savall
  • Patent number: 11443021
    Abstract: An unlocking processing method can be applied to a terminal, and include: in response to detecting a touch operation on a hot zone for a spot of the terminal, determining a direction of a signal generated by the touch operation among a plurality of directions; determining a threshold according to the direction, wherein at least two of the plurality of directions each corresponds to a respective different threshold; and reporting a request for lighting up the spot in the hot zone, in response to that a coverage of the signal exceeds the threshold.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: September 13, 2022
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventor: Nan Liu
  • Patent number: 11437408
    Abstract: A display device and an electronic apparatus both include a display part and a camera part. The display part has a first display region and a second display region. The first display region is around the second display region. A pixel density of the second display region is less than a pixel density of the first display region, wherein a plurality of first sub-pixels within the first display region are configured into a red-green-blue-green array, and a plurality of second sub-pixels within the second display region are configured into a red-green-blue array. The camera part is disposed at a position corresponding to the second display region on a side of the display part. Thus, it can solve a problem of complex panel opening and assembly in the prior art.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: September 6, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Hai Wang
  • Patent number: 11436957
    Abstract: An abnormality detection circuit includes: a plurality of voltage dividing circuits; a first selector configured to select and output one of a plurality of outputs of the plurality of voltage dividing circuits; a first comparator configured to compare an output of the first selector with a reference voltage; and a first detector configured to detect an abnormality based on an output of the first comparator, wherein the selection of the first selector is switched in synchronization with a vertical synchronization signal or a horizontal synchronization signal of a liquid crystal display device.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: September 6, 2022
    Assignee: Rohm Co., Ltd.
    Inventors: Akira Hashimoto, Takateru Yamamoto, Sukenori Ito, Yasunobu Inoue
  • Patent number: 11435860
    Abstract: A touch panel including: a first electrode pattern arranged in a first direction, including a plurality of first electrode cells that are physically separated from each other; a second electrode pattern arranged in a second direction crossing the first direction, including a plurality of second electrode cells that are physically separated from each other; first touch signal lines connected to the first electrode cells; and second touch signal lines connected to the second electrode cells. The electrode patterns and the touch signal lines are arranged on the same layer on a substrate such that a first virtual connection line for connecting centers of second electrode cells of a first group corresponding to an n-th first electrode cell crosses a second virtual connection line for connecting centers of second electrode cells of a second group corresponding to an (n+1)-th first electrode cell.
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Shin, Soon Sung Ahn
  • Patent number: 11436987
    Abstract: A display device dynamically determines a duration of the illumination period for a display frame to adjust an average brightness of a display device as the framerate dynamically changes. The display device includes a backlight unit (BLU) for providing light for displaying an image, a plurality of pixels for modulating the light provided by the BLU, and a controller circuit for controlling the BLU. The controller circuit measure a duration of a previous frame and determine a duration for an illumination period of a current frame based on the measured duration of the previous frame. The control circuit then controls the BLU based on the determined duration of the illumination period for the current frame.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: September 6, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Cheonhong Kim, Min Hyuk Choi, Alexander Klement
  • Patent number: 11430402
    Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jahun Koo, Haksun Kim, Kyung-Hun Lee
  • Patent number: 11430838
    Abstract: A display device includes a flexible display module and provides a display area including a fingerprint recognition area, and a non-display area outside the display area. The flexible display module includes a display panel including a light-emitting element, a touch sensing unit disposed on the display panel, and a fingerprint recognition unit overlapping with the fingerprint recognition area. The touch sensing unit is configured to sense pressure applied to the flexible display module in an in-folding mode in which the flexible display module is folded such that a portion of the display area faces another portion of the display area.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung-Iyong Bok
  • Patent number: 11423844
    Abstract: A high-definition display device is provided. A small display device is provided. In the display device, a first layer and a second layer are stacked and provided. The first layer includes a gate driver circuit and a source driver circuit, and the second layer includes a display portion. The gate driver circuit and the source driver circuit are provided to include a region overlapping with the display portion. The gate driver circuit and the source driver circuit have an overlap region where they are not strictly separated from each other. Five or more gate driver circuits and five or more source driver circuits can be provided.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 23, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takayuki Ikeda, Hidetomo Kobayashi, Hideaki Shishido, Kiyotaka Kimura, Takashi Nakagawa, Kosei Nei
  • Patent number: 11392220
    Abstract: A bidirectional active stylus and a sensing system are provided. The stylus includes a receiving electrode, a first emitting diode and a second emitting diode. The receiving electrode is configured to receive a synchronous signal from a touch pad. The receiving electrode is disposed at a position closer to the touch pad with respect to the first emitting diode and the second emitting diode. The strength of received signals is improved.
    Type: Grant
    Filed: August 4, 2019
    Date of Patent: July 19, 2022
    Assignee: Silicon Integrated Systems Corp.
    Inventor: Han-ning Chen
  • Patent number: 11393366
    Abstract: An example calibration device includes a projector projecting a first light region including a first area onto and extending over a border of a non-patterned touch mat. A camera captures a first image of the first light region. A processor establishes a first set of four corner coordinates of the touch mat. The projector projects a second light region including a second area onto the touch mat. The second area is smaller than the first area. The camera captures a second image of the second light region. The processor performs a perspective transformation of the second image using the first set of corner coordinates and a resolution of the second light region to get a second set of four corner coordinates of the touch mat in a coordinate plane of the projector. The processor aligns the first and second set of four corner coordinates.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Xiangfei Qian
  • Patent number: 11392246
    Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and the OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying them to at least a part of gate driving lines of the plurality and corresponding light-emission control lines; during each touch detection period: suspending the generation of gate driving signals or also suspending the generation of light-emission control signals; adjusting the average display luminance of a plurality of rows of pixels within a predetermined time period, so that the display luminance is uniform, and the gate driving signal for each row of pixels and the light-emission control signal of the light-emission control line maintain a preset timing relationship.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 19, 2022
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Chun-Hung Chen, Kai-Wen Shao, Feng-Lin Chan, Shuo-Wen Jang
  • Patent number: 11393412
    Abstract: An electronic device is provided, including a display panel and a processor. The display panel is configured to display image data and includes a backlight module, and the processor is electrically connected to the display panel. The processor averages current values of the backlight module corresponding to the image data in a first time period, to generate an average current value, and compares the average current value with a current threshold. When the average current value is greater than the current threshold, the processor generates an adjusted maximum current value, and correspondingly reduces current values of the backlight module in a second time period according to the adjusted maximum current value, to reduce a temperature of the electronic device. A temperature adjustment method of an electronic device is also provided.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: July 19, 2022
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Yi-Ching Chen, Chia-Feng Yang, Chia-Lei Yu
  • Patent number: 11393369
    Abstract: The present application relates to an overcurrent protection module, comprising a first output terminal, a detection circuit, a first conversion circuit, and a main control circuit. The first output terminal is used for outputting a drive signal; the detection circuit is used for detecting an output current of the first output terminal; the first conversion circuit is used for converting the output current into a voltage, and the voltage comprises a first voltage and a second voltage; the main control circuit is used for transmitting a control signal to control the first conversion circuit to transmit the first voltage or the second voltage to the main control circuit; the main control circuit is further used for calculating an effective value of the output current according to the first voltage and the second voltage, and controlling the output of the drive signal from the first output terminal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Mingliang Wang