Patents Examined by Amare Mengistu
  • Patent number: 11854462
    Abstract: A display system and an operating method thereof are provided. The display system includes a display panel, a source driver, and a timing controller. The source driver is coupled to the display panel for providing a plurality of pixel voltages to the display panel. The timing controller has a transmission interface circuit and is coupled to the source driver. The timing controller detects whether an operation timing of the display system enters a vertical blanking (VBK) period. When the operation timing of the display system enters the VBK period, the timing controller turns off the transmission interface circuit and causes the source driver to enter an idle mode. When the operation timing of the display system is at a preset time before an end of the VBK period, the timing controller turns on the transmission interface circuit and wakes up the source driver.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: December 26, 2023
    Assignee: AUO Corporation
    Inventors: Ke-Hsin Tseng, Tsung-Hsuan Ho
  • Patent number: 11854495
    Abstract: Embodiments of the disclosure relate to a display device and a display driving method. Specifically, there may be provided a display device comprising a display panel including a plurality of subpixels and a plurality of driving voltage lines supplying a driving voltage to the plurality of subpixels, a plurality of data driving circuits supplying a data voltage to the display panel, a timing controller controlling the plurality of data driving circuits to supply a compensated data voltage according to a position of the display panel, wherein in the compensated data voltage, a first compensation gain for at least some subpixels is varied depending on positions corresponding to the plurality of data driving circuits in a first direction of the display panel, and a second compensation gain for at least some subpixels is varied depending on distances from the plurality of data driving circuits in a second direction of the display panel.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: December 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sangjae Park, Minsung Kang
  • Patent number: 11847952
    Abstract: A luminance compensator includes a memory device and a luminance compensation circuit. The memory device stores a plurality of luminance compensation data and provides first luminance compensation data and second luminance compensation data among the plurality of luminance compensation data in response to a frame rate dimming-on signal. The first luminance compensation data corresponds to a first frame rate. The second luminance compensation data corresponds to a second frame rate. The plurality of luminance compensation data is for compensating luminance of at least one region that operates with a plurality of frame rates. The frame rate dimming-on signal represents time intervals in which frame rates of the at least one region are gradually changed. The luminance compensation circuit generates third luminance compensation data in response to the frame rate dimming-on signal, the first luminance compensation data, and the second luminance compensation data.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: December 19, 2023
    Inventors: Pilseung Heo, Jinyong Park, Hyeonsu Park, Hyunwook Lim
  • Patent number: 11847965
    Abstract: A pixel structure, a driving method thereof and a display device are disclosed. The pixel structure includes: a pixel circuit and a plurality of light emitting devices; the pixel circuit has a plurality of display periods, each display period includes: a first reset stage, a data write stage, a second reset stage and a light emitting stage, the driving method includes: in the second reset stage, providing a valid level signal to at least one second reset line to cause the corresponding second reset sub-circuit to write a voltage on the initialization signal line into a first electrode of the light emitting device; in the light emitting stage, providing a valid level signal to a first light emitting control line and providing a valid level signal to at least one second light emitting control line.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: December 19, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lian Xiang, Wenbo Chen, Yudan Shui, Zhengmao Yu, Shanghong Li
  • Patent number: 11847972
    Abstract: Disclosed is an electronic device, which includes a display panel, a data driving circuit, a scan driving circuit, a signal control circuit, and a power supply circuit that trims a first voltage and a second voltage based on a first control value generated based on the first voltage and the second voltage, and the power supply circuit includes a controller that generates the first control value, a sign determining circuit that determines a sign of the first control value based on the first voltage and the second voltage, a plurality of voltage generators that generate a trimming voltage of the first control value based on the first voltage and the second voltage, and a first memory that stores the first control value, and the first control value is a value for controlling the sign determining circuit and each of the plurality of voltage generators.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: December 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Sik Lee, Keunoh Kang, Sanghyun Lee
  • Patent number: 11837190
    Abstract: A display apparatus is provided. The display apparatus includes: a liquid crystal panel; a source driver configured to output a grayscale voltage to the liquid crystal panel; a power supply configured to provide a voltage to the source driver; and a controller configured to control the power supply and the source driver to change a maximum voltage provided to the source driver and a grayscale voltage based on conversion of a screen mode, and to set a predetermined grayscale region and an over driving region within an entire grayscale region.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jinoh Kim
  • Patent number: 11836301
    Abstract: Systems, methods, and non-transitory media are provided for tracking operations using data received from a wearable device. An example method can include determining a first position of a wearable device in a physical space; receiving, from the wearable device, position information associated with the wearable device; determining a second position of the wearable device based on the received position information; and tracking, based on the first position and the second position, a movement of the wearable device relative to an electronic device.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: December 5, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Sebastien Mounier, Tom Edward Botterill, Jonathan Kies, Ramesh Chandrasekhar
  • Patent number: 11835723
    Abstract: An optical device may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: December 5, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Hui-Chuan Cheng, Hyunsun Chung, Jahja I. Trisnadi, Clinton Carlisle, Kevin Richard Curtis, Chulwoo Oh
  • Patent number: 11829566
    Abstract: A touch sensor device (TSD) includes TSD electrodes associated with a surface of the TSD. Also, an overlay that includes marker electrode(s) is also associated with a region of the surface of the TSD. The TSD also includes drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes. A DSC is configured to provide a TSD electrode signal to a TSD electrode and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the marker electrode(s) of the overlay. Processing module(s) is configured to process a digital signal generated by the DSC and other digital signals generated by other DSCs determine the region of the surface of the TSD that is associated with the overlay and to adapt sensitivity of the TSD within that region.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: November 28, 2023
    Assignee: SigmaSense, LLC.
    Inventors: Patrick Troy Gray, Gerald Dale Morrison, Daniel Keith Van Ostrand, Richard Stuart Seger, Jr., Kevin Joseph Derichs, Shayne X. Short, Timothy W. Markison
  • Patent number: 11829572
    Abstract: There is provided an image display apparatus that enables an intuitive operation even when a detection target is not able to be inserted into a first space in which a three-dimensional object is visually recognized. A position of a detection target is detected, and a display position of a pointer displayed by a display unit is moved on a basis of a position of the detection target that exists within a second space not overlapping the first space which is a space in which the three-dimensional object is displayed among the position of the detected detection target.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 28, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Kaoru Koike, Itaru Shimizu, Takanobu Omata, Yuichi Miyagawa, Hisataka Izawa
  • Patent number: 11817048
    Abstract: The present technology relates to a signal processing apparatus, a signal processing method, and a display apparatus that are able to provide suitable functionality according to applications. The signal processing apparatus provided by the present technology includes a signal processing section that acquires at least one of first information regarding a color of a video to be displayed on a panel section, second information regarding brightness of a screen of the panel section, and third information measured as a physical quantity related to the panel section, and that performs, on the basis of the acquired information, adaptive control of a voltage according to a load on and an application of the panel section. The voltage is used for driving the panel section. The present technology is applicable, for example, to a self-luminous display apparatus.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: November 14, 2023
    Inventors: Masao Zen, Tetsuo Ikeyama, Daisuke Miki, Syunsuke Kikuchi, Kazuhiro Nukiyama, Kazutaka Kobayashi, Yasushi Konuma, Kazuki Uchida, Masayoshi Sasaki, Masayuki Okochi
  • Patent number: 11816817
    Abstract: A method includes: obtaining a plurality of view images; identifying a representative value from among difference values between values of a plurality of sub-pixels corresponding to a first position in the plurality of view images and an intermediate value of a bit range of a display; determining filtering strength corresponding to the representative value, based on a correspondence map indicating a correspondence relationship between filtering strength and a difference value between a value of a sub-pixel and the intermediate value; and applying a filter having the determined filtering strength to the plurality of sub-pixels corresponding to the first position, wherein a value resulting from applying the filter having the determined filtering strength to the plurality of sub-pixels corresponding to the first position is included in a range of sub-pixel values according to the bit range of the display.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyungmin Lim, Seunghyun Lee, Jaesung Lee, Sunil Lee
  • Patent number: 11804179
    Abstract: An electroluminescent display device according to an embodiment of the present disclosure includes a pixel including a driving element having a gate electrode connected to a data line and a source electrode connected to a readout line, a sensing circuit configured to sense a voltage of the readout line which changes according to a pixel current flowing through the driving element during sensing operation, and a boosting circuit connected between the data line and the readout line and configured to change a voltage of the data line according to the changed voltage in the readout line during the sensing operation.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 31, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Min Kim, Hyuck Jun Kim, Ji Su Choi, Tae Young Lee
  • Patent number: 11804142
    Abstract: The present invention relates to apparatus for simulating visual impairment of a person 10. The apparatus for simulating visual impairment of a person 10 comprises a headset 14 and a position sensor 16. The headset 14 is worn by a user and displays a scene 20 to the user. The position sensor 16 senses the position of the headset. The headset 14 changes the scene 20 displayed to the user in dependence on an output from the position sensor 16. The headset 14 also changes an extent of obscuration of the scene 20 displayed to the user in dependence on an output from the position sensor 16.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: October 31, 2023
    Assignee: Virtual Reality Empathy Platform Limited
    Inventors: David Burgher, Kevin Gordon
  • Patent number: 11803347
    Abstract: An image display system causes a plurality of image display devices having different device characteristics to respectively display images. The image display system includes an external light detection device that detects external light and an image adjustment device that performs adjustment to make at least one of contrast, chromaticity, and luminance continuous between the images displayed on the plurality of image display devices, the adjustment being performed based on the device characteristics and the detected external light.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 31, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshito Tanaka, Takashi Yamada, Daizaburo Matsuki, Yoshinori Okazaki
  • Patent number: 11798490
    Abstract: A gate drive circuit, a driving method of the gate drive circuit, and a display panel are disclosed. The gate drive circuit includes a gate start signal selection circuit, at least two gate drive units, and at least two gate start signal lines. The gate driving units drive the at least two display sections in one-to-one correspondence. The gate start signal lines are connected to the gate driving units in one-to-one correspondence. After receiving a gate start signal, the gate start signal selection circuit outputs the gate start signal to the corresponding gate start signal output terminal to drive the corresponding display section.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: October 24, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhicheng Tao, Haijiang Yuan
  • Patent number: 11797081
    Abstract: Methods, devices, and media are disclosed for mapping of input and output spaces in head-based human-computer interactions. In some embodiments, an end-to-end method is described for designing a head-based user interface, calibrating the interface to individual users, and interacting with a user in real time by mapping head-based user inputs to an output space in a way that optimizes the target selection efficiency of the interaction. Head orientation may be leveraged to define the mapping between the user input and the output space.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: October 24, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wei Zhou, Mona Hosseinkhani Loorak, Ghazaleh Saniee-Monfared, Sachi Mizobuchi, Xiu Yi, Pourang Polad Irani, Jian Zhao, Wei Li
  • Patent number: 11790841
    Abstract: A pixel and a display device including the same are disclosed. The pixel includes a light emitting element, first through seventh transistors, and a first capacitor. The first transistor is connected between first and second nodes. The second transistor is connected between a data line and a fourth node and configured to be turned on by a first scan signal. The third transistor is connected between the first node and a third node and configured to be turned on by a second scan signal. The fourth transistor is connected between the fourth node and a third power line and configured to be turned on by a third scan signal. The fifth transistor is connected between the third node and the third power line and configured to be turned on by a fourth scan signal. The sixth transistor is connected between the first node and a fifth node and configured to be turned off by an emission control signal.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: October 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Chang Yu, Hyun Joon Kim, Hae Min Kim, Myung Hoon Park, Dong Hoon Lee
  • Patent number: 11789551
    Abstract: A method, an apparatus and a corresponding electronic device for dynamically providing perceptible feedback for a rotary control component of an electronic device are provided. An operation on the rotary control component is detected. An initial value of the rotary control component is synchronized with a software control value of the electronic device. A variation value corresponding to the operation is identified. It is determined that the initial value and the variation value meet a feedback condition. Perceptible feedback is provided through a feedback component of the electronic device.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 17, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Paul Kos, Masaaki Fukumoto, Siyuan Ma
  • Patent number: 11783755
    Abstract: The disclosure relates to a disclosed display device and a display driving method. According to an embodiment, the disclosed display device may include a display panel having a first subpixel including a light emitting element and being connected to a sensing line in the display panel for sensing a characteristic value of the first subpixel; a gate driving circuit configured to supply a scan signal to the first subpixel through a gate line in the display panel; a data driving circuit configured to supply a data voltage to the first subpixel through a data line in the display panel; and a timing controller. The timing controller may be configured to: control the gate driving circuit; determine compensation data for compensating for a deviation in the characteristic value of the first subpixel based on a first sensing voltage, a second sensing voltage, and a third sensing voltage on the sensing line; and control the data driving circuit based on the compensation data.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: October 10, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SangHyun Park, Sieun Park