Patents Examined by Hong Zhou
  • Patent number: 11656724
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer, at least one first detection electrode disposed in a display area and a plurality of second detection electrodes disposed in a peripheral area. In a display period in which images are displayed on the display area, a predetermined voltage is applied to the first detection electrode to drive the liquid crystal layer, and in a period in which the liquid crystal layer is not driven, the first detection electrode is set to a state of being not electrically connected to anywhere or being connected to a predetermined potential with an impedance of 50 k? or higher.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 23, 2023
    Assignee: Japan Display Inc.
    Inventors: Akihiko Fujisawa, Kaoru Ito, Daichi Abe
  • Patent number: 11650692
    Abstract: A touch sensing method for a touch panel and an electronic device are provided. The touch sensing method includes: selecting a portion of multiple touch sensing units as to-sense touch sensing units, applying first touch excitation signals to the those to obtain multiple first touch sensing signals, and obtaining multiple differential sensing signals based on multiple first touch sensing signals; selecting a touch sensing unit as a reference touch sensing unit, and applying a touch reference signal to it to obtain a reference sensing signal; selecting a to-sense touch sensing unit as a preprocessing touch sensing unit, and applying a second touch excitation signal to it to obtain a second touch sensing signal; obtaining a capacitance sensing signal from the reference sensing signal and the second touch sensing signal; and acquiring capacitance values of multiple to-sense touch sensing units according to the differential sensing signals and the capacitance sensing signal.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: May 16, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Huang Chen, Feng-Lin Chan
  • Patent number: 11642026
    Abstract: The human body sensing device includes a contact sensing unit that includes a sensing electrode and a signal electrode, an activation module that senses a contact with a body through the sensing electrode when the sensing electrode and the signal electrode contact the body and outputs a wake-up signal in response to the sensing of the contact, and a human body communication unit that provides a ground voltage to the signal electrode and outputs a data signal to the signal electrode when the wake-up signal from the activation module is received.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 9, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Eun Kim, Kwang Il Oh, Tae Wook Kang, Hyuk Kim, Mi Jeong Park, Hyung-Il Park, Kyung Jin Byun, Jae-Jin Lee, In Gi Lim
  • Patent number: 11635835
    Abstract: A touch display device includes light emitting devices disposed on a substrate, an encapsulation unit disposed on the light emitting devices, a touch buffer film disposed on the encapsulation unit, second bridge electrodes disposed on the touch buffer film, a black matrix disposed on the touch buffer film and including openings, color filters that fill the openings, and a cover layer disposed on the color filters and the black matrix.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: April 25, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Eun Lee, Kyong Ha Lee, Tae Gyu Lee, Tae Hwan Kim, Eun Hye Lee, Hyeon Chul Im
  • Patent number: 11620023
    Abstract: A touch event processing circuit includes a plurality of receiving circuits and an average circuit. Each of the plurality of receiving circuits includes a first integrator circuit, a resistor, and a touch event detection circuit. The first integrator circuit is arranged to receive an input signal that includes a voltage sensing signal from a touch panel, and output a first integrated voltage signal. The resistor has a first terminal coupled to an output terminal of the first integrator circuit and a second terminal. The touch event detection circuit is arranged to detect a touch event according to the output from the second terminal of the resistor and a voltage average signal. The average circuit is arranged to: receive a plurality of first integrated voltage signals from the plurality of receiving circuits; and perform an average operation upon the plurality of first integrated voltage signals, to generate the voltage average signal.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: April 4, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Jia-Ming He, Yaw-Guang Chang, Yi-Yang Tsai
  • Patent number: 11620008
    Abstract: A single position indicator that can be used with a plurality of different types of position detection systems. The position indicator includes a communication circuit which, in operation, communicates with an outer device, a configuration circuit which, in operation, performs an initial setting process based on a signal from the outer device, a signal generation circuit which, in operation, generates a stylus position signal, and a control circuit. The control circuit, in operation, controls transmission of the stylus position signal based on an initial setting of at least one switch circuit that is set by the initial setting process performed by the configuration circuit, and controls reception of a signal received from the outer device via the communication circuit.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 4, 2023
    Assignee: Wacom Co., Ltd.
    Inventor: Sadao Yamamoto
  • Patent number: 11609603
    Abstract: An electronic device may have a housing. The housing may be characterized by a vertical axis and may have housing structures such as cylindrical housing structures with a cylindrical surface. A speaker may be mounted in the housing to provide sound through openings in the housing structures. A visual output device may be mounted in the housing to provide light through openings in the housing structures. The visual output device may include an electrophoretic display, a light-emitting diode display, or other display with an array of pixels that display images or may include other components for emitting light. During operation, voice commands may be received by a microphone in the device and action taken based on the commands and other information. The action taken may include playing sound with the speaker and providing visual output with the visual output device.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: March 21, 2023
    Assignee: Apple Inc.
    Inventors: Paul X. Wang, Jie Gu
  • Patent number: 11609664
    Abstract: A capacitance detection circuit is provided, which includes a capacitance control module, a charge conversion module and a filter module connected with each other. The capacitance control module controls a capacitor to be charged/discharged for multiple times and generates a digital voltage signal according to an amount of received charges. The capacitor releases all stored charges after being charged to a preset voltage during each charge/discharge. In response to the digital voltage signal being at a high level, the charge conversion module outputs negative charges with a preset charge amount to the capacitance control module. The preset charge amount is greater than or equal to an amount of the stored charges when the capacitor is charged to the preset voltage. The filter module obtains a value representing a capacitance of the capacitor according to the digital voltage signal.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 21, 2023
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventor: Hong Jiang
  • Patent number: 11611333
    Abstract: The present disclosure discloses a driving circuit and a related chip and electronic device. The driving circuit is configured to drive a load and includes: a control unit, configured to generate a first control signal and a second control signal; a first output terminal, coupled to the capacitive touch screen; a mutual capacitive driving circuit, including: a first pull-up unit, configured to selectively pull up the first output terminal coupled to a high voltage level according to the first control signal; a first pull-down unit, configured to selectively couple the first output terminal to a low voltage level according to the second control signal; a first low-pass filter circuit, coupled between the control unit and the first pull-up unit; and a second low-pass filter circuit, coupled between the control unit and the first pull-down unit.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: March 21, 2023
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Hong Jiang, Chang Kun Ding
  • Patent number: 11610946
    Abstract: A display device prevents cracks from spreading to an active area. The display device includes a substrate including an active area and a non-active area having a bending area, a thin-film transistor disposed in the active area, a light-emitting element disposed in the active area and connected to the thin-film transistor, an encapsulation layer disposed on the light-emitting element, a touch sensor disposed on the encapsulation layer, a touch pad disposed in the non-active area, a first routing line connecting the touch sensor to the touch pad via a second routing line in the bending area, and a crack prevention layer disposed on the second routing line in the bending area. Thus, the crack prevention layer is capable of preventing the occurrence of cracks in the bending area BA, thus preventing cracks from spreading to the active area AA.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: March 21, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyuk Won, Min-Joo Kim, Jae-Won Lee, Sang-Hoon Pak, Byong-Hoo Kim, Ji-Hye Lee, Jae-Man Jang, Sung-Jin Kim, Jae-Hyung Jang
  • Patent number: 11604528
    Abstract: A display device includes: a panel including a display region and a touch region; and a circuit board, and including a first conductive layer, a second conductive layer and a first insulating layer between the first conductive layer and the second conductive layer. The circuit board includes: a plurality of data lines electrically connected with a plurality of data signal lines; a plurality of touch lines electrically connected with a plurality of touch electrodes; and a first ground line disposed between at least two or more of the plurality of data lines and the plurality of touch lines. The first ground line includes a first part of the first conductive layer, a first part of the second conductive layer, and a first via passing through the first insulating layer and connecting the first part of the first conductive layer with the first part of the second conductive layer.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hee Lee, Hyo Chul Lee
  • Patent number: 11604542
    Abstract: In a display system, a display device includes a plurality of gate lines, a plurality of source lines and a plurality of common electrodes used for both image display and touch detection. A first acquirer acquires a specific frequency to be avoided. A second acquirer acquires a frequency of a control signal used to control the display device. When the specific frequency and the frequency of the control signal satisfy a changing condition, a changing unit changes the frequency of the control signal.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: March 14, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Atsushi Hirai
  • Patent number: 11592941
    Abstract: Electronic equipment includes a pressed body as either a housing or a display, a pressure-sensitive sensor, a support configured to support the pressure-sensitive sensor such that the pressure-sensitive sensor is opposed to the pressed body, and a filler provided between the pressed body and the pressure-sensitive sensor. The filler has a thickness that changes with distance between the pressed body and the pressure-sensitive sensor.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 28, 2023
    Assignee: SONY CORPORATION
    Inventors: Akira Ebisui, Ken Kobayashi, Hayato Hasegawa, Yoshiaki Sakakura, Manami Miyawaki
  • Patent number: 11594200
    Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: February 28, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hung-Hsiang Chen, Tso-Hua Chien, Huang-Chin Tang
  • Patent number: 11586288
    Abstract: A controller for sensing interior motion includes a sensor structure having transmitting conductors and receiving conductors. The controller comprises circuitry to drive and sense signals on interacting pairs of conductors (the transmitting conductor or receiving conductor can act as the drive side, or as the sense side). Signals are processed to analyze changes in measured signal and analyzed to determine interior movement. When the controller is deployed proximate to human skin, movement of muscles, tendons and bones within the skin are reflected in the measured signals.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: February 21, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventor: David Holman
  • Patent number: 11580917
    Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Moonshik Kang, Dae-Sik Lee, Jun Pyo Lee, Min-Soo Choi, Songyi Han
  • Patent number: 11579728
    Abstract: A touch display device of the present disclosure may include a display panel on which a plurality of touch electrodes are electrically connected to a plurality of touch lines; a gate driving circuit for supplying scan signals to the display panel through a plurality of gate lines; a touch driving circuit for sensing a touch by detecting a touch signal from the plurality of touch electrodes and supplying a common voltage to the touch electrodes through the touch lines; a common voltage feedback line electrically connected to the plurality of touch lines or disposed to overlap with the plurality of gate lines in a non-display area of the display panel; and a common voltage compensation circuit for supplying a compensated common voltage based on a distortion in the common voltage.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: February 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jinseong Kim, JuHan Kim, Haewon Lee
  • Patent number: 11568815
    Abstract: The present disclosure provides a pixel driving circuit, a manufacturing method thereof, and a display device. In the pixel driving circuit, a first terminal of a coupling sub-circuit is electrically connected to a control terminal of a driving sub-circuit; a second compensation sub-circuit is electrically connected to a first control terminal, a second terminal of the coupling sub-circuit and a first level signal input terminal, respectively; the pixel driving circuit is configured to control the connection or disconnection between the second terminal of the coupling sub-circuit and the first level signal input terminal under the control of the first control terminal.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: January 31, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yang Yu, Zheng Liu
  • Patent number: 11561661
    Abstract: A transform is used to transform raw sensor data from the time domain to the frequency or sequency domain. The transformed data falls into several signal bins. The transformed data in at least one of the signal bins is analyzed to determine whether a touch event or release event has occurred.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: January 24, 2023
    Assignee: TOUCHSENSOR TECHNOLOGIES, LLC
    Inventor: James W. Citta
  • Patent number: 11561647
    Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 24, 2023
    Assignee: Apple Inc.
    Inventors: Yingxuan Li, Weijun Yao, Vivek Pant, Martin Paul Grunthaner, Marduke Yousefpor, Sumant Ranganathan