Patents Examined by Dong Hui Liang
  • Patent number: 11335274
    Abstract: An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 17, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jeong Lee, Kyung Min Shin, Yong Sung Ahn, Gi Woong Shin
  • Patent number: 11320919
    Abstract: The present invention discloses a touch and display driver integration circuit, which includes a touch circuit and a display driver circuit. The touch circuit generates a status signal standing for the status of the touch circuit. The display driver circuit is coupled to the touch circuit and transmits at least one signal and/or at least one information to the touch circuit according to the status signal so as to drive the touch circuit.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 3, 2022
    Assignee: SITRONIX TECHNOLOGY CORPORATION
    Inventor: Hsuan-Yi Shaw
  • Patent number: 11321958
    Abstract: An electronic device and a fingerprint sensing control method thereof are provided. The electronic device includes a touch control circuit and a fingerprint sensing control circuit. The touch control circuit is coupled to the display panel. The touch control circuit performs touch detection on the display panel to obtain a finger press area corresponding to the finger on the display panel. The fingerprint sensing control circuit is coupled to the touch control circuit to obtain a finger press area. The fingerprint sensing control circuit is coupled to the display panel to perform a fingerprint sensing control on a display panel. The fingerprint sensing control circuit scans the finger press area on the display panel in a first direction during a first period and scans the finger press area in a second direction different from the first direction during a second period after the first period.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: May 3, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Cho-Hsuan Jhang, Shih-Cheng Chen, Su-Wei Lien, Chih-Peng Hsia, Shiang-Fei Wang
  • Patent number: 11315494
    Abstract: The present disclosure relates to a pixel circuit and a display device using the same. The pixel circuit includes a first switch element configured to connect a first node to a third node in a sampling step, a second switch element configured to supply a data voltage to a second node in the sampling step, a third switch element configured to supply a pixel driving voltage to the second node in a emission step after the sampling step, a fourth switch element configured to connect the third node to an anode of a light-emitting element in the emission step, a first capacitor connected to the first node, a second capacitor connected between the third node and the anode of the light-emitting element, and a third capacitor connected between the anode and the cathode of the light-emitting element.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: April 26, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Min Ha Kang, Ho Young Lee, Jae Sung Kim
  • Patent number: 11315475
    Abstract: A pixel driving circuit includes: current control sub-circuit outputting driving current in response to light emission control signal of the light emission control signal terminal; time control sub-circuit transmitting time modulation signal of the time modulation signal terminal to the third control terminal in response to time control signal of the time control signal terminal, and controlling time during which the driving current flows through the light emitting element; initial time control sub-circuit transmitting initial control signal of the initial control signal terminal to the output terminal of the initial time control sub-circuit in response to initial time control signal of the initial time control signal terminal. Time control sub-circuit controls the time during which the driving current flows through the light emitting element in response to time modulation signal transmitted to the third control terminal and initial control signal transmitted to the third control terminal.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Ning Cong, Dongni Liu, Can Zhang
  • Patent number: 11308884
    Abstract: A display device includes: a display unit; a display driver configured to drive the display unit; and a display-data generator configured to transfer a screenful of update display data to the display driver. The display driver includes a light-emission controller configured to control self-luminous elements to emit light, and a memory storing a screenful of the update display data. After a lapse of a predetermined time period from a driving stop time, the display driver reads the update display data stored in the memory and then uses the update display data to drive a screen, the driving stop time being a time when the display unit is stopped from driving based on the update display data. The display driver causes the self-luminous elements of the display unit to emit light, even during a display update or no display update performed on the display driver by the display-data generator.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: April 19, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumitaka Seki, Kenji Maeda, Takuya Okamoto, Shinji Yamamoto, Yuichi Sato, Masafumi Ito, Yohichi Takazane
  • Patent number: 11308904
    Abstract: The data driver of the display panel of the present disclosure is configured to control an output mode of a data signal, and the output mode includes a first drive mode and a second drive mode. In different frames, data signals are outputted according to the first drive mode and second drive mode, respectively.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Zhi Xiong
  • Patent number: 11308852
    Abstract: Provided are a driving method and driving device of a display panel, and a display device. A sub-display region in which gray scale values of first sub-pixels are 0 and gray scale values of second sub-pixels are less than a first preset gray scale value is determined as a first sub-display region, and a sub-display region in which not all of the gray scale values of the first sub-pixels are 0 and not all of the gray scale values of the second sub-pixels are less than the first preset gray scale value is determined as a second sub-display region. In a reset stage, a first reset signal is provided to an anode of an organic light emitting element of a sub-pixel of the first sub-display region and a second reset signal is provided to an anode of an organic light emitting element of a sub-pixel of the second sub-display region.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 19, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Zhiyong Xiong, Zhengxia Lv, Min Yang
  • Patent number: 11308729
    Abstract: A biometric imaging device configured to capture an image of an object in contact with an outer surface of the imaging device, comprising: an at least partially transparent display panel comprising a repeating transmission pattern defined by an array of display unit cells, each display unit cell having the same transmission pattern; an image sensor comprising a photodetector pixel array arranged underneath the display panel; and a collimator layer arranged between the display panel and the image sensor that comprises a plurality of first collimating structures having a first collimator opening size and a plurality of second collimating structures having a second collimator opening size different from the first collimator opening size, wherein the respective collimator opening size and relative location of the first and second collimating structure in relation to the display unit cell is based on the transmission pattern of the display unit cell.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: April 19, 2022
    Assignee: FINGERPRINT CARDS ANACATUM IP AB
    Inventors: René Nilsson, Hans Martinsson, Ehsan Hashemi, Farzan Ghavanini
  • Patent number: 11301071
    Abstract: A display device includes a display panel having a display surface, the flexible substrate including a first flat portion, a second flat portion disposed to overlap the first flat portion in a thickness direction of the display device, and a bending portion between the first flat portion and the second flat portion; a touch panel disposed on the display panel, and including a pad side portion; a touch printed circuit board including a first attachment portion attached to a surface of the pad side portion; and a first support film disposed to overlap the first flat portion, and a second support film disposed to overlap the second flat portion, wherein the first support film includes a first indent pattern indented inwardly of the bending portion and from a remaining portion of the first support film.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myoung Ha Jeon, Seong Sik Ahn
  • Patent number: 11302237
    Abstract: A display device, a data driving circuit and a display panel capable of displaying YCbCr image data as WRGB image data while simplifying the structure of the data driving circuit and the display panel are discussed. The display device includes a display panel in which pixels including a white subpixel and a colored subpixel are arranged in a matrix form, and subpixels are disposed in a region where gate lines extending in a first direction and data lines extending in a second direction intersect, a gate driving circuit driving the gate lines, a data driving circuit driving the data lines, and a timing controller for controlling the gate driving circuit and the data driving circuit. In the display panel, a luminance data voltage is applied to the white subpixel, and a same data voltage is applied to two colored subpixels adjacent in the first direction.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: April 12, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Jihun Kim
  • Patent number: 11302261
    Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 12, 2022
    Inventors: Jinpil Kim, Namjae Lim, Hoisik Moon, Jae Sung Bae
  • Patent number: 11289024
    Abstract: A display device includes: a display panel provided with multiple pixels; a driving circuit; and a power generator, wherein each of the pixels includes: a first switching transistor of which a gate electrode is connected to the gate line, of which a first electrode is connected to the data line, and of which a second electrode is connected to a first node; a driving transistor of which a gate electrode is connected to a reference line and thus receives a reference voltage supplied from the power generator, of which a first electrode is connected to the first node, and of which a second electrode is connected to a second node; and a light-emitting device of which an anode electrode is connected to the second node, and of which a cathode electrode is connected to a power line through which the power generator supplies a low-potential power supply voltage.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 29, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Kyujin Kim, Taehun Kim, Donggun Lee
  • Patent number: 11289011
    Abstract: Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of driver circuits that are distributed in the display area. An integrated LED and driver circuit includes one or more LEDs of a LED zone and one or more driver circuits integrated on a substrate in a single package with the LED and driver circuit vertically stacked over a substrate. An addressing scheme configures addresses of the driver circuits using address lines that connect between adjacent driver circuits. Control data is provided to the driver circuits via a power line communication signal that provides both a supply voltage and digital data modulated onto the supply voltage.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: March 29, 2022
    Assignee: Huayuan Semiconductor (Shenzhen) Limited Company
    Inventors: Chih-Chang Wei, Jyun-Long Lin, Yung-Ting Chen, Li-Lun Chi, Junjie Zheng, Richard Landry Gray
  • Patent number: 11289021
    Abstract: A pixel circuit, a display panel, a display device and a driving method are provided. The pixel circuit provides an initial signal having an excitation pulse to a control electrode of a driving transistor through a reset circuit in advance; and the initial signal having a preset voltage is provided to the control electrode of the driving transistor after a preset duration.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 29, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Zihua Li, Qi Liu, Guoping Zhang, Jing Liu, Yuqing Yang, Xiping Li
  • Patent number: 11269454
    Abstract: Structured noise from various aggressors can be suppressed to improve touch performance. A respective noise characteristic can be determined for each respective group of touch nodes (e.g., row, column) among multiple groups of touch nodes in a masked touch image. The respective noise characteristic can be removed from the corresponding respective group of touch nodes in the touch image. For example, a respective noise characteristic can be determined for each respective row and/or for each respective column in the masked touch image. The respective noise characteristic can be removed from the respective row and/or column in the unmasked touch image. In some examples, the determining and subtracting of the noise characteristic can be repeated iteratively within a window of time and/or until one or more noise criteria are met.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Judd E. Reed, Ari Y. Benbasat
  • Patent number: 11269442
    Abstract: A transparent high-conductivity layer for providing electrostatic feedback to a user of an electronic device. The transparent high-conductivity layer is positioned over a capacitive input sensor and has a resistivity sufficiently high to prevent interference with the capacitive input sensor. As one example, the transparent high-conductivity layer can be formed from a layer of geometrically-separated regions of high-conductivity material. The average distance between geometrically-separated regions can substantially define the resistivity of the transparent high-conductivity layer.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Alan Kleiman-Schwarsctein, Senem E. Emgin, Terrence L. Van Ausdall, Xianwei Zhao, Yuxi Zhao, Soyoung Kim
  • Patent number: 11270641
    Abstract: A display device includes a first power source, a timing controller, and pixels. The timing controller is connected to the first power source through a main line, an auxiliary line, and a detection line. The pixels are commonly connected to the first power source through a first power line. The first power source includes: a main power source connected to the first power line and the main line; an auxiliary power source connected to the auxiliary line; a rectifier connected between the auxiliary power source and the first power line; and a comparator comparing a voltage of the first power line and providing its output to the detection line.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Sik Lee, Si Duk Sung, Sung Mo Yang, Sang Hyun Lee
  • Patent number: 11263968
    Abstract: A display substrate, a driving method thereof, and a display device. The display substrate includes: a first display sub-region including a plurality of first repeating regions each including a first pixel unit and a second pixel unit disposed adjacently, the first pixel unit including a first sub-pixel and a second sub-pixel, and the second pixel unit including a second sub-pixel and a third sub-pixel; and a second display sub-region including a plurality of second repeating regions each including a third pixel unit and a first transparent pixel, the third pixel unit including a first sub-pixel, a second sub-pixel and a third sub-pixel; the first transparent pixel is configured such that a pixel density of the second display sub-region is less than a pixel density of the first display sub-region, and a light transmittance of the second display sub-region is greater than a light transmittance of the first display sub-region.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: March 1, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yanyan Wang, Lujiang Huangfu, Wenjing Tan
  • Patent number: 11256362
    Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: February 22, 2022
    Assignee: Apple Inc.
    Inventors: Karan Jain, Nandita Venugopal