Patents Examined by B. Lee
  • Patent number: 11545058
    Abstract: An electronic device includes: a video signal processing unit that receives a video signal and outputs a predetermined type of signal; an arithmetic processing unit that transfers a correction segment data corresponding to a different segment between a current unevenness correction data and a previous unevenness correction data; and an unevenness correction unit that corrects the predetermined type of signal based on the current unevenness correction data.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 3, 2023
    Assignee: SHARP NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Hiroshi Sunagare
  • Patent number: 11545092
    Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a first power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyojin Lee, Sehyuk Park, Jinyoung Roh, Geunjeong Park, Eunho Lee, Hui Nam, Bonghyun You
  • Patent number: 11539501
    Abstract: A clock data recovery circuit includes the following elements: a phase detector for outputting a phase adjustment signal by comparing a clock signal of a first node and an input signal; a charge pump for adjusting a charge amount of a second node according to the phase adjustment signal; a first switch including one end coupled to the second node and including another end coupled to a third node; a second switch including one end which receives a bias voltage and including another end coupled to the third node; a capacitor including a first electrode coupled to the third node; third switches; and voltage control oscillators including control terminals coupled to the third node and including output terminals coupled to the first node through the third switches.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: December 27, 2022
    Inventors: Ki Hyun Pyun, Min Young Park, Jong Min Shim
  • Patent number: 11538426
    Abstract: A display panel includes a display area and a first peripheral area located around the display area. A first gate driver is provided in the first peripheral area. The display panel is further provided with a plurality of first driving signal lines and a plurality of second driving signal lines. The plurality of first driving signal lines are arranged in a different layer from a layer in which the plurality of second driving signal lines are located. The m-th first driving signal line of the plurality of first driving signal lines and the k-th second driving signal line of the plurality of second driving signal lines are both electrically connected, in the first peripheral area, to an m-th output terminal of the first gate driver, where m is an integer greater than or equal to 1 and k is also an integer greater than or equal to 1.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: December 27, 2022
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinwei Wu, Zhen Zhang, Wei Zhang, Cunzhi Li, Jonguk Kwak, Yanyan Xu
  • Patent number: 11531428
    Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: generating gate driving signals that are sequentially shifted based on the first clock signal (GCK); sequentially applying the gate driving signals that are sequentially shifted to the plurality of GLs; writing display data in a display driving period for each row of pixels, to the row of pixels, wherein a time length of the display driving period depends on a corresponding gate driving signal and is smaller than the clock cycle; and for a display driving period for each of at least one row of pixels, setting a touch detection period corresponding to the display driving period or corresponding to the display driving period for previous row of pixels at least partially overlapping with the display driving period in time.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: December 20, 2022
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Chun-Hung Chen, Kai-Wen Shao, Feng-Lin Chan, Shuo-Wen Jang
  • Patent number: 11531390
    Abstract: Systems, devices, media, and methods are presented for an immersive augmented reality (AR) experience using an eyewear device. A portable eyewear device includes a processor, a memory, and a display projected onto at least one lens assembly. The memory has programming stored therein that, when executed by the processor, captures information depicting an environment surrounding the device and identifies a match between objects in that information and predetermined objects in previously obtained information for the same environment. When the position of the eyewear device reaches a preselected location with respect to the matched objects, a physical output is provided to produce the immersive experience. The physical output changes as the position of the eyewear device moves to maintain the immersive experience.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: December 20, 2022
    Assignee: Snap Inc.
    Inventors: Ilteris Canberk, Shin Hwun Kang, Doug Mead
  • Patent number: 11527214
    Abstract: An image processing method, an image processing circuit and a display apparatus are provided. The image processing method includes: converting an RGB gray-scale value of each pixel in a current image frame into an RGB luminance value; converting the RGB luminance value into a first RGBW luminance value; determining a luminance level of the current image frame according to the first RGBW luminance value corresponding to each pixel; determining a luminance gain value of the current image frame according to the luminance level of the current image frame; calculating a second RGBW luminance value according to the luminance gain value and the first RGBW luminance value; and converting the second RGBW luminance value into an RGBW gray-scale value.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: December 13, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Song Meng, Zhongyuan Wu
  • Patent number: 11520377
    Abstract: Reconfigurable touch screen computing devices with folding configurations that include flexible displays which are made up of segments that can be reconfigured from a compact state to an expanded state. The form factor of the compact state is roughly the size of a typical handheld phone, with an integrated speaker and microphone. The form factor of the expanded state is roughly the size of a tablet. Both states may provide a configuration which includes a touch screen display on a front side and a protective housing on a back side. The computing devices may further include sensors to indicate the state of configuration and mechanisms for alignment, locking, and structural support. In one embodiment, a module attached to, situated within, or otherwise associated with at least one segment may contain all or substantially all processing and memory, along with a communications system, all of which may be used in either state.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: December 6, 2022
    Assignee: Lepton Computing LLC
    Inventor: Stephen E. Delaporte
  • Patent number: 11520467
    Abstract: In some embodiments, a device displays functionality information in response to receiving an indication of a first input for which a contact meets functionality display criteria. In some embodiments, a device generates a user interface that includes a navigation bar including images from different positions in a respective content item, and a representation of an adjacent content item. In some embodiments, a device moves a selection-indicator in a user interface by a predefined amount in response to receiving an indication of a first input that meets unitary movement criteria. In some embodiments, a device interprets movement of a contact of an input based at least in part on a grip of a user. In some embodiments, a device displays a plurality of character selection options when a text entry field is not tolerant of character ambiguity and a first input corresponds to a plurality of candidate characters.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 6, 2022
    Assignee: Apple Inc.
    Inventors: Marcel Van Os, William M. Bachman, Elbert D. Chen, Jeffrey L. Robbin, Joe Howard, Joshua McGlinn, Jonathan Lochhead, Benjamin W. Keighran, Jennifer L. C. Folse, Lynne Kress, Julian Missig, Imran Chaudhri, Alessandro Sabatelli, Nicholas Zambetti
  • Patent number: 11520378
    Abstract: Reconfigurable touch screen computing devices with folding configurations that include flexible displays made up of segments reconfigured from a folded state to an expanded state are described. The form factor of the folded state is the size of a handheld phone (including an integrated speaker and microphone). The form factor of the expanded state is the size of a tablet computer. Both states provide a configuration including a touch screen display on a front side and a protective housing on a back side. The computing devices include sensors indicating the state and mechanisms for folding, alignment, and structural support, and magnets for the devices to be locked in the folded or unfolded state. A module attached to at least one segment may contain substantially all processing and memory, and a communications system, all which may be used in either state.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: December 6, 2022
    Assignee: Lepton Computing LLC
    Inventor: Stephen E. Delaporte
  • Patent number: 11514844
    Abstract: A pixel drive circuit includes a data write sub-circuit, an input and read sub-circuit, a drive sub-circuit, and a first output control sub-circuit. The data write sub-circuit is configured to transmit data signals input from a first data voltage terminal at different times to a first node. The input and read sub-circuit is configured to: transmit a signal of a signal transmission terminal to a second node in a write period, and transmit an electrical signal of the second node to the signal transmission terminal in a threshold voltage read period. The drive sub-circuit is configured to output a drive signal. The first output control sub-circuit is configured to: be coupled to an element to be driven, and transmit the drive signal output by the drive sub-circuit to the element to be driven.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: November 29, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Li Xiao, Minghua Xuan, Dongni Liu, Jing Liu, Qi Qi, Haoliang Zheng, Zhenyu Zhang, Liang Chen, Hao Chen
  • Patent number: 11514846
    Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Jae Jeong, Kyung Bae Kim, Chong Chul Chai, Kyung Hoon Chung
  • Patent number: 11514862
    Abstract: A device for increasing a slew rate of a driving amplifier includes a driving amplifier, a slew rate improvement circuit, and a controller. The driving amplifier is configured to amplify an input voltage and output an output voltage. The slew rate improvement circuit is configured to provide or receive a current to increase the slew rate of the driving amplifier. The controller is configured to control an operation of the slew rate improvement circuit based on a difference between a first code corresponding to the input voltage of the driving amplifier during a current horizontal line time and a second code corresponding to the input voltage during a next horizontal line time.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: November 29, 2022
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Dong Ho Kim, Chel Ho Chung, Hee Jung Kim, Hyeong Sik Choi
  • Patent number: 11507267
    Abstract: A force sensing system for determining if a user input has occurred, the system comprising: an input channel, to receive an input from at least one force sensor; an activity detection stage, to monitor an activity level of the input from the at least one force sensor and, responsive to an activity level which may be indicative of a user input being reached, to generate an indication that an activity has occurred at the force sensor; and an event detection stage to receive said indication, and to determine if a user input has occurred based on the received input from the at least one force sensor.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: November 22, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Hamid Sepehr, Pablo Peso Parada, Willem Zwart, Tom Birchall, Michael Allen Kost, Tejasvi Das, Siddharth Maru, Matthew Beardsworth, Bruce E. Duewer
  • Patent number: 11508301
    Abstract: An embodiment of the present disclosure provides a pixel circuit, including: a reference writing circuit configured to write a reference voltage to a control electrode of a driving transistor; a data writing circuit configured to write a data voltage to a threshold compensation circuit; the threshold compensation circuit configured to acquire a threshold voltage of the driving transistor, and to supply a first control voltage to the control electrode of the driving transistor and supply a second control voltage to a second electrode of the driving transistor; a reset circuit configured to write a reset voltage to the pixel circuit; and the driving transistor having a first electrode electrically coupled to a first operating voltage terminal and the second electrode electrically coupled to a first electrode of a light emitting element, and configured to drive the light emitting element to emit light.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: November 22, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventor: Tian Dong
  • Patent number: 11508283
    Abstract: The present disclosure relates to a data driving device and a panel driving method of the data driving device. More particularly, it relates to a data driving device and a panel driving method of the data driving device in which a programmable gamma circuit is applied to a gamma voltage circuit of the data driving device and some components of a channel circuit are used in common so as to reduce the size of the data driving device.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: November 22, 2022
    Assignee: LX Semicon Co., Ltd.
    Inventor: Hyun Woo Jeong
  • Patent number: 11501726
    Abstract: A liquid crystal display device includes a backlight, a first liquid crystal panel, a second liquid crystal panel, and a driver. The second liquid crystal panel is overlapped with the first liquid crystal panel, and disposed closer to the backlight than to the first liquid crystal panel. The driver is configured to drive the backlight, the first liquid crystal panel, and the second liquid crystal panel. The second liquid crystal panel is lower in resolution than the first liquid crystal panel. The driver drives the first liquid crystal panel and the second liquid crystal panel at different refresh rates.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takayuki Murai, Makoto Shiomi
  • Patent number: 11495181
    Abstract: The display device includes a display panel in which a first display area and a second display area adjacent to the first display area are defined, a data driving circuit which drives the plurality of data lines, a scan driving circuit which drives the plurality of scan lines, and a driving controller which receives an image signal and a control signal, and controls the data driving circuit and the scan driving circuit based on an operation mode, where the driving controller includes a luminance deviation compensation unit which compensates for luminance deviation of the first display area and the second display area when the operation mode is a multi-frequency mode in which the first display area is driven at a first frequency and the second display area is driven at a second frequency different from the first frequency.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: November 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Dong Kim, Sangan Kwon, Changnoh Yoon, Seungjae Lee
  • Patent number: 11495153
    Abstract: A pixel circuit includes: a first driving line, a second driving line, a data line, and a sensing line; a first pixel sub-circuit including a first writing unit, a first sensing unit, and a first driving unit, the first driving unit being configured to drive a first light-emitting unit to emit light; and a second pixel sub-circuit including a second writing unit, a second sensing unit, and a second driving unit, the second driving unit being configured to drive a second light-emitting unit to emit light. The first writing unit and the second sensing unit are connected to the first driving line, so as to be turned on or off synchronously under control of the first driving line. The second writing unit and the first sensing unit are connected to the second driving line, so as to be turned on or off synchronously under control of the second driving line.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 8, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 11493964
    Abstract: The present invention relates to a device (100) for a portable user apparatus (102), including a portion (104) which can be folded over the user apparatus (102), said foldable portion (104) including at least two detection layers, each kept at a reserve potential and including at least one capacitive detection electrode: a first of said layers being arranged to carry out a function of capacitive detection of at least one control object located on one side of said foldable portion (104); a second of said layers being arranged so as to carry out a function of capacitive detection of at least one control object located on the other side of said foldable portion (104), with a view to triggering a function in the user apparatus (102). The invention also relates to an apparatus (10) provided with such an accessory device.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: November 8, 2022
    Assignee: QuickStep Technologies LLC
    Inventor: Didier Roziere