Patents Examined by Andrew Sasinowski
  • Patent number: 11294462
    Abstract: A method is disclosed, the method comprising the steps of receiving, at a first time interval from a first sensor configured to output data indicative of a first position of an eye, first data; receiving, at a second time interval from a second sensor configured to output data indicative of a delta position of the eye, second data; determining, based on the first data, a first position of the eye; determining, based on the second data, a delta position of the eye; determining, using the first position of the eye and the delta position of the eye, a second absolute position of the eye; and in response to determining the second position of the eye, generating an output signal indicative of the second position of the eye.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 5, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Edwin Joseph Selker, Ivan Yeoh
  • Patent number: 11289016
    Abstract: Discussed is a display device including a plurality of semiconductor light-emitting devices applied to sub-pixels included in each pixel of a display panel; and a driving unit for driving the plurality of semiconductor light-emitting devices on the basis of a digital pulse width modulation (PWM) signal, wherein the driving unit further includes: a current sensing unit for sensing the value of a current flowing through at least one of the plurality of semiconductor light-emitting devices; and a current compensation unit for compensating for the current deviation between the plurality of semiconductor light-emitting devices on the basis of the current value sensed by the sensing unit.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: March 29, 2022
    Assignees: LG ELECTRONICS INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Sunghwan Kim, Seongjin Park, Oh-Kyong Kwon
  • Patent number: 11276342
    Abstract: A display driving device capable of performing overdriving compensation for image data using a comparison result between pixel data of a previous sub-pixel and pixel data of a current sub-pixel in units of horizontal lines includes overdriving controller configured to generate overdriving pixel data for a current sub-pixel based on a result of comparison between first pixel data for a previous sub-pixel and second pixel data for the current sub-pixel and a color arrangement pattern of the previous sub-pixel and the current sub-pixel in units of horizontal lines of image data, and a data driver configured to generate a source signal for the current sub-pixel based on one of the second pixel data and the overdriving pixel data to supply the source signal to the current sub-pixel.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: March 15, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Do Seok Kim, Hyun Mo Yang, Young Gi Kim
  • Patent number: 11276344
    Abstract: The present application discloses a pixel circuit for a light-emitting diode display panel. The pixel circuit includes a reset sub-circuit configured to initialize voltage levels of some nodes. Additionally, the pixel circuit includes a data-input and compensation sub-circuit configured to load a data signal and adjust the voltage levels of the nodes for determining a driving current flown through a driving sub-circuit. The pixel circuit further includes a voltage-control sub-circuit for controlling a switch sub-circuit to determine whether the driving current is flowing or not. Moreover, the pixel circuit includes an emission-control sub-circuit configured to control a partial time span in one scan for passing the driving current to the light-emitting diode to drive light emission. The one scan is one of multiple different scans in one cycle time of displaying one frame of image.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 15, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Minghua Xuan, Han Yue, Xiaochuan Chen, Ning Cong
  • Patent number: 11270630
    Abstract: The embodiments of the present disclosure provide a driving circuit, a driving method thereof and a display apparatus, and relates to the field of display technology. The driving circuit is configured to drive a to-be-driven element and includes a driving element. The driving element and the to-be-driven element are coupled in series between a first operating voltage terminal and a second operating voltage terminal. The driving element comprises a driving sub-circuit, a writing sub-circuit and a gray scale control sub-circuit. The writing sub-circuit writes a first data voltage provided by the first data signal terminal into the driving sub-circuit. The gray scale control sub-circuit transmits the first operating voltage provided by the first operating voltage terminal to the driving sub-circuit. The driving sub-circuit generates a drive current. The gray scale control sub-circuit also controls an on-state duration of the current path.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 8, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Xiaochuan Chen, Han Yue, Ning Cong
  • Patent number: 11263962
    Abstract: A stage including a node control unit which controls a voltage of a first control node and a voltage of a second control node, in correspondence with a first input signal supplied to a first input terminal, a second input signal supplied to a second input terminal, and a third input signal supplied to a third input terminal, a node maintenance unit which maintains the voltage of the first control node to be constant in correspondence with the voltage of the second control node, and an output unit which supplies a first gate voltage supplied to a first power terminal or a second gate voltage supplied to a second power terminal to an output terminal in correspondence with the voltage of the first control node and the voltage of the second control node.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: March 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Won Park, Min Woo Byun
  • Patent number: 11263941
    Abstract: Embodiments of the present disclosure relate to a data driving circuit, a driving method thereof, an array substrate, and a display panel. The data driving circuit includes a data driver, a multiplex circuit, and a control circuit. The data driver includes M data output terminals, and each of the data output terminals provides a data signal to L data lines via the multiplex circuit. The multiplex circuit includes M×L switch groups, and each of the switch groups includes N switch tubes and is coupled between one data line and the corresponding data output terminal. Each switch tube is coupled to one of L×N gate control terminals of the control circuit. Each gate control terminal is coupled to M switch tubes that are spaced apart from each other by (L×N×1) switch tubes. In the embodiments, M is an integer, and L and N are integers greater than or equal to 2.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 1, 2022
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaolin Wang, Pengcheng Fu, Rui Wang, Jungho Park, Xiaofeng Ma, Jianfeng Yuan
  • Patent number: 11263957
    Abstract: Provided is a display device including: a display panel; and a driving chip. The display panel includes: sub-pixels including first sub-pixels and second sub-pixels located, each first sub-pixel including a first pixel circuit and a first light-emitting element, and each second sub-pixel including a second light-emitting element. The driving chip includes: a data signal output module electrically connected to the first pixel circuit and configured to output a first data signal to the first pixel circuit, so that the first pixel circuit outputs, in response to the first data signal, a first driving current signal for driving the first light-emitting element to emit light; and a driving current signal output module electrically connected to the second light-emitting element and configured to output a second driving current signal to the second light-emitting element, so that the second light-emitting element emits light in response to the second driving current signal.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 1, 2022
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Yuqian He
  • Patent number: 11257423
    Abstract: A pixel driving circuit includes a driving control sub-circuit and a driving duration control sub-circuit. The driving control sub-circuit includes a first driving sub-circuit connected to a first node. The driving control sub-circuit is configured to be connected to an element to be driven. The driving control sub-circuit is configured to output a driving signal to drive the element to be driven to operate. The driving duration control sub-circuit includes a second driving sub-circuit connected to a second node. The driving duration control sub-circuit is configured to write a first voltage signal into the second node, write a third voltage signal into the second node, and transmit a second voltage signal to the first node in response to a voltage variation at the second node to stop the first driving sub-circuit from outputting the driving signal, so as to control an operating duration of the element to be driven.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: February 22, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Qi Qi, Jing Liu
  • Patent number: 11251761
    Abstract: An operational amplifier includes a first transistor, a second transistor, a third transistor, a first constant current source, an output state, a first switch, and a second switch. The first transistor has a first gate configured to receive an output voltage from an output node. The second transistor has a second gate. The third transistor has a third gate configured to receive an input voltage. The first constant current source is coupled to sources of the first transistor, the second transistor, and the third transistor. The output stage is configured to drive the output voltage on the output node based on a first current through the first transistor, a second current through the second transistor, and a third current through the third transistor. The first switch is coupled between the second gate of the second transistor and the third gate of the third transistor; and the second switch is coupled between the output node and the second gate of the second transistor.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: February 15, 2022
    Assignee: Synaptics Incorporated
    Inventor: Yutaka Saeki
  • Patent number: 11250807
    Abstract: Disclosed herein is a driver integrated circuit (IC), which can be miniaturized and includes a plurality of circuits, including a first substrate, a first circuit driven at a first level voltage and mounted on the first substrate, a second substrate bonded to the first substrate, and a second circuit including one or more sub-circuits driven at a second level voltage that is higher than the first level voltage, wherein at least one among the one or more sub-circuits is mounted on the second substrate.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 15, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Kee Joon Choi
  • Patent number: 11250752
    Abstract: In some examples, a display includes a plurality of display pixels, an integrated timing controller and driver circuit to drive the display pixels, and a de-multiplexer circuit including one or more transistors coupled to the integrated timing controller and driver circuit and coupled to one or more of the plurality of display pixels.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: February 15, 2022
    Assignee: Intel Corporation
    Inventors: Dong Yeung Kwak, Ramon C. Cancel Olmo, Thomas A. Nugraha, Jue Li
  • Patent number: 11244598
    Abstract: The present application discloses pixel circuit including a current-control circuit coupled respectively to a first data-signal terminal, a first voltage terminal, a first scan-signal terminal, and a first output node. The current-control circuit is configured to output a driving current to the first output node based on a first data signal and a first voltage signal in response to a first scan signal. The pixel circuit further includes a timing-control circuit coupled respectively to a second data-signal terminal, a second scan-signal terminal, multiple modulation-signal terminals, the first output node, and a second output node. The timing-control circuit is configured to select one modulation signal based on a second data signal in response to a second scan signal and to output the driving current from the current-control circuit via the second output node to a light-emitting device based on the modulation signal.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 8, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Han Yue, Xiaochuan Chen, Minghua Xuan, Can Zhang, Can Wang, Ming Yang, Ning Cong
  • Patent number: 11237651
    Abstract: A method in a system including an active stylus and a display controller that detects the active stylus and that drives a display device. The method includes: driving the display device to display first pixel data during a first display period in a first time period, wherein the driving is started a first amount of time and ended a second amount of time after the beginning of the first time period; and driving the display device to display second pixel data during a second display period in a second time period, wherein the driving is started a third amount of time and ended a fourth amount of time after the beginning of the second time period. The first and second display periods have a same time length. The first amount of time is different from the third amount of time, and the second amount of time is different from the fourth amount of time.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: February 1, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Haruhiko Hisano, Hideyuki Hara
  • Patent number: 11232735
    Abstract: A method of driving a display panel includes determining whether an input data signal represents a moving image or a static image, determining an image transition from a first static image to a second static image when the input data signal represents the static image, determining a number of afterimage compensation frames using data of the first static image and data of the second static image when the image transition occurs and inserting the afterimage compensation frames corresponding to a determined number of the afterimage compensation frames in a single low frequency driving cycle between a first normal frame corresponding to the first static image and a second normal frame corresponding to the second static image.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sehyuk Park, Hyo Jin Lee
  • Patent number: 11227530
    Abstract: The present application discloses a display panel, including a display body and a plurality of driving modules including a driving unit electrically connected to the display body; wherein at least a part of the driving modules further includes a voltage conversion unit, an input terminal of the voltage conversion unit is connected to a high-potential power supply voltage, and an output terminal of the voltage conversion unit is electrically connected to an input terminal of the driving unit to provide a preset driving voltage for the driving unit.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: January 18, 2022
    Inventor: Xianming Zhang
  • Patent number: 11222573
    Abstract: A stage circuit including: a first sub-stage circuit coupled to a first input terminal receiving an input signal, a second input terminal receiving a first clock signal, and a third input terminal receiving a second clock signal, the first sub-stage circuit controlling a voltage of a first node, a second node, and a third node based on the input signal and the first and second clock signals, and supplying a first scan signal to a first output terminal based on the voltage of the second and third nodes; and a second substage circuit coupled to the second input terminal, a fourth input terminal receiving a third clock signal, and the first and second nodes, the second sub-stage circuit supplying a second scan signal to a second output terminal based on the first and third clock signal, and the voltage of the first and second nodes.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: January 11, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Na Young Kim, Dong Hwi Kim, Jin Jeon
  • Patent number: 11217154
    Abstract: A display panel includes sub-pixels each including a light-emitting element and a pixel circuit including a first transistor and a second transistor; a timing control unit to generate bias data based on first characteristic information of the first transistor, and generate correction data based on second characteristic information of the second transistor; and a data sensing driving unit configured to receive the bias data and the correction data, and output a bias voltage and a grayscale voltage to the pixel circuit. The pixel circuit includes the first transistor to output a driving current to the light-emitting element; a first driving circuit to control a magnitude of the driving current based on the bias voltage; and a second driving circuit including the second transistor and configured to control a pulse width of the driving current based on the grayscale voltage.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: January 4, 2022
    Assignees: SAMSUNG DISPLAY CO., LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP.
    Inventors: Minjae Jeong, Keechan Park, Joonho Lee, Kyunghoon Chung, Chongchul Chai
  • Patent number: 11217144
    Abstract: A driver integrated circuit (IC) according to one embodiment of the present disclosure includes a first IC, a second IC that is combined with the first IC, a first circuit configured to receive first image data, and generate second image data by correcting the first image data, a second circuit configured to sample the second image data, and a third circuit configured to convert the sampled second image data into a source signal, wherein the first circuit is mounted on the first IC, the second circuit is mounted on one of the first IC and the second IC, and the third circuit is mounted on the second IC.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: January 4, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Sung Ahn, Sung Ha Kim, Goon Seok Oh
  • Patent number: 11211015
    Abstract: A pixel data compensation method and device for a display device, and a display device are disclosed. The pixel data compensation method includes: obtaining, for a sub-pixel of an n-th row in a column, a pixel compensation quantity Q of the sub-pixel according to a row compensation coefficient Kn of the n-th row of sub-pixels and a voltage deviation ?Vdata corresponding to an initial pixel data Vdata of the sub-pixel; compensating the initial pixel data Vdata of the sub-pixel according to the pixel compensation quantity Q of the sub-pixel to obtain a compensated pixel data V?data of the sub-pixel, and the row compensation coefficient Kn decreases as a row number of the row in which the sub-pixel is located increases.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 28, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xinshe Yin