Including Impedance Detection Patents (Class 345/174)
  • Patent number: 11644916
    Abstract: According to one embodiment, a touch panel display device includes sensor electrodes, an electrode driver, and lines for connection between the electrode driver and the sensor electrodes. The sensor electrodes include first and second electrodes. The lines include first and second lines connected to the first and second electrodes. The second line includes first portions drawn in a direction opposite to terminals of the electrode driver, and a second portion drawn in a direction to the terminals. The first portions are connected to one another via a coupling line.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: May 9, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshinori Aoki, Hiroyuki Abe
  • Patent number: 11644862
    Abstract: A system and method for synchronizing multiple integrated circuit (IC) chips for an input device having a display device integrated with a capacitive sensing device. A first one of the IC chips is a master IC chip and a second one of the IC chips is a slave IC chip. The master IC chip is configured to transmit synchronization signals to and from the slave IC chip, such that capacitive frames are acquired by each of the IC chips at substantially the same time, the initiation of the sensing signals is synchronized for each of the IC chips and the clock signals of the slave IC chips are synchronized with the clock signal of the master IC chip.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: May 9, 2023
    Assignee: Synaptics Incorporated
    Inventors: Jeremy Roberson, David Sobel
  • Patent number: 11640210
    Abstract: A touch panel includes a substrate, a raised structure, a touch sensing electrode layer, and a peripheral circuit layer. The substrate has a visible region and a border region surrounding the visible region. The raised structure is disposed on the substrate and located in the border region, in which the raised structure and the substrate constitute a step area. The touch sensing electrode layer is disposed in the visible region and partially extends to the border region to cross over the raised structure and cover the step area. The peripheral circuit layer is disposed in the border region, and overlaps the touch sensing electrode layer at least on the raised structure and the step area.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: May 2, 2023
    Assignee: TPK Advanced Solutions Inc.
    Inventors: Chien-Hsien Yu, Zi-Jun Ding, Yun-Guo Xu, Jian-Hua Fang, Li-De Lv
  • Patent number: 11640223
    Abstract: A sensing circuit includes: a plurality of sensor electrodes; a first capacitance between the sensor electrodes; a plurality of proximity sensing electrodes electrically isolated from the sensor electrodes; and a second capacitance between at least one of the sensor electrodes and the proximity sensing electrodes. A density of at least one of the proximity sensing electrodes is less than a density of at least one of the sensor electrodes.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: May 2, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choon Hyop Lee, Kang Won Lee, Ga Young Kim, Jang Hui Kim, A Ra Jo
  • Patent number: 11635853
    Abstract: A touch sensing method, apparatus for a touch panel, and electronic device are provided. The method includes: determining a first number of to-sense touch sensing circuits, and determining a second number of reference touch sensing circuits, each to-sense touch sensing circuit having a corresponding reference touch sensing circuit; causing each to-sense touch sensing circuit to receive a touch excitation signal TX1, and apply TX1 to a corresponding touch sensitive cell and receive a touch sensing signal therefrom, and output a first output signal; causing each reference touch sensing circuit to receive a touch reference signal DC/TX2, and apply DC/TX2 to a corresponding touch sensitive cell and receive a reference sensing signal therefrom, wherein DC/TX2 and TX1 are different signals; and obtaining, according to respective first and second output signals, a capacitance difference of capacitances sensed by each to-sense touch sensing circuit and its corresponding reference touch sensing circuit.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 25, 2023
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hung-Kai Chen, Yu-Huang Chen, Feng-Lin Chan
  • Patent number: 11635866
    Abstract: A display device including an input sensor having sensing electrodes disposed in a sensing area and signal lines. Each of the signal lines is connected to a corresponding electrode of the sensing electrodes and disposed in the line area. One signal line of the signal lines includes a first portion having a constant width, a second portion disposed outside a corner area of the sensing area, extending from the first portion, and having a width gradually increasing in a direction that is away from the first portion, a third portion extending from the second portion and having a width gradually varying in a direction that is away from the second portion, and a fourth portion extending from the third portion and having a constant width.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jisu Na, Kwangmin Kim, Kiwook Kim, Yangwan Kim
  • Patent number: 11635846
    Abstract: A display device includes a display substrate having a non-display area at least partially surrounding a display area, and pixels in the display area, and a sensor substrate covering the pixels and a portion of the display substrate. The display device also includes first and second pads in the non-display area, a first sensor on the sensor substrate, a first sensor line connecting the first pad and the first sensor, and a second sensor line connecting the second pad and the first sensor. In addition, the display device includes a sensor transmitter to supply a sensing signal to the first pad during a first period, and a sensor receiver to receive a sampling signal from the second pad during a second period after the first period.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hun Park, Yong Sub So
  • Patent number: 11637155
    Abstract: A display device includes: a display panel; an input sensor on the display panel; a panel driving circuit to drive the display panel, and to output a synchronization signal; and a sensor controller to control the input sensor. The sensor controller determines a sensing mode in response to the synchronization signal, and changes the sensing mode to a second sensing mode when the synchronization signal is activated in a first sensing mode.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyeong-Ub Moon, Yun-Ho Kim, Chui Kim, Jaeuk Choi
  • Patent number: 11635843
    Abstract: An electronic device, includes: a sensor layer having an active region and a peripheral region adjacent to the active region, the sensor layer including a plurality of sensing units on the active region and a plurality of wiring lines on the peripheral region, wherein each of the plurality of sensing units includes a plurality of sub-sensing units, wherein each of the plurality of sub-sensing units includes: a first portion extending in a first direction; a plurality of second portions protruding from the first portion; a plurality of cross patterns spaced apart from each other across the first portion; and a bridge pattern insulated from the first portion and electrically connected to the plurality of cross patterns, the bridge pattern intersecting the first portion, wherein the plurality of wiring lines include a first wiring line and a second wiring line that are electrically connected to the plurality of sub-sensing units.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyeongnam Bang, Deokjung Kim, Eunyoung Kim, Hyeyun Han
  • Patent number: 11630540
    Abstract: The disclosure includes a touch display apparatus having AFE circuit that performs a noise cancellation of an AFE channel by utilizing noise signal received by a neighboring AFE channels. The first AFE channel includes a first integrator having an input terminal coupled to the first terminal receiving a first sensing signal. The second AFE channel includes an input amplifier. The second AFE channel is coupled between the input terminal of the first integrator in the first AFE channel and a second terminal connected to the touch panel. The second AFE channel is configured to generate a reversal input signal based on a second sensing signal received by the second terminal and couple the reversal input signal to a common node between the first integrator and the first terminal.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: April 18, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventor: Yen-Cheng Cheng
  • Patent number: 11630544
    Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 18, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takayuki Nakanishi, Koji Noguchi, Koji Ishizaki, Yasuyuki Teranishi, Takeya Takeuchi
  • Patent number: 11630535
    Abstract: A touch display device and a display panel uniformly distributing capacitances between the touch lines and the touch electrodes are provided. The device includes a display panel in which a plurality of X-touch electrodes are electrically connected to form a X-touch electrode line and a plurality of X-touch electrode lines arranged in parallel to receive a plurality of touch driving signals, and a plurality of Y-touch electrode lines to transmit a plurality of touch sensing signals, and a touch driving circuit. A plurality of X-touch lines transmit the touch driving signals connect together the plurality of X-touch electrodes constituting a same X-touch electrode line through a plurality of contact holes. Distances between at least one Y-touch electrode line and the plurality of contact holes through which the plurality of X-touch lines are electrically connected to the X-touch electrodes adjacent to the at least one Y-touch electrode line are uniform.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: April 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Wooram Oh, YoungChul Kwon
  • Patent number: 11625127
    Abstract: A processing system configured to receive a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The processing system is further configured to acquire, based on receipt of the first display control signal, first resulting signals from sensor electrodes electrically connected to the sensor driver by operating the sensor electrodes for a first type of input sensing during a first period overlapping with at least a portion of the non-display update period. Further, the processing system is configured to acquire, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period overlapping with at least a portion of the display update period.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: April 11, 2023
    Assignee: Synaptics Incorporated
    Inventors: Jonathan Losh, Dipankar Talukdar
  • Patent number: 11625067
    Abstract: Disclosed is a mobile terminal comprising a display including a first area and a second area, wherein the first area is located at a first side of the mobile terminal and the second area is located at a second side facing the first side, a camera disposed on the second side, and a controller, wherein the controller is configured to display an image acquired through the camera in the first area and the second area.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 11, 2023
    Assignee: LG ELECTRONICS INC.
    Inventor: Changmok Kim
  • Patent number: 11625135
    Abstract: A touch sensor includes a first sensing electrode unit formed on a substrate in a first direction and a second sensing electrode unit formed on the substrate in a second direction crossing the first direction. A plurality of micro-etched patterns are formed on a boundary of unit transparent electrodes constituting the first sensing electrode unit and the second sensing electrode unit. The unit transparent electrode has a shape in which a portion of a curve connecting vertices of a polygon is removed, and adjacent unit transparent electrodes are electrically connected to each other. It includes a segmental pattern dividing the first or second sensing electrode unit into two or more areas.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: April 11, 2023
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Dohyoung Kwon, Cheol Hun Lee
  • Patent number: 11625118
    Abstract: An electronic device, includes: a display panel; and an input sensor on the display panel, wherein the input sensor includes a plurality of sensing electrodes, each having a first region and a second region that surrounds the first region, each of the plurality of sensing electrodes including a pen electrode configured to detect an input tool and a touch electrode configured to detect a touch input, wherein the pen electrode is at the first region, and wherein the touch electrode is at the second region.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junghak Kim, Youngsik Kim, Kyowon Ku, Jeongheon Lee
  • Patent number: 11620021
    Abstract: Cross-coupling correction techniques on a touch sensor panel can be improved using machine learning models (particularly for touch sensor panels with relatively low signal-to-noise ratio). In some examples, the machine learning model can be implemented using a neural network. The neural network can receive a touch image and perform cross-coupling correction to mitigate cross-talk due to routing traces of the touch sensor panel. Mitigating cross-talk can improve touch sensing accuracy, reduce jitter, and/or reduce false positive touch detection.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: April 4, 2023
    Assignee: Apple Inc.
    Inventors: Sai Zhang, Behrooz Shahsavari, Ari Y. Benbasat, Nima Ferdosi
  • 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: 11620019
    Abstract: Techniques for adaptive predictions of points on a screen are described. In an example, a device predicts a first point to be detected on a screen at a first time. At the first time, the device detects a second point on the screen. The device also predicts a set of points based at least in part on the second point. The set of points includes a third point to be detected on the screen at a second time. Based least in part on the first point and the second point, the device determines a first prediction error. The device also selects the third point from the set of points based at last in part on the first prediction error. Prior to the second time, an output is displayed on the screen at the third point.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: April 4, 2023
    Assignee: Amazon Technologies. Inc.
    Inventors: Junwu Luo, Kevin Joonho Moon
  • Patent number: 11615719
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a base substrate including a display unit and a bendable unit, the bendable unit being connected to the display unit and bendable to a back of the display unit; a multiplexer on the bendable unit; and a metal shielding portion on a side of the multiplexer away from the base substrate, wherein an orthographic projection of the metal shielding portion on the base substrate covers an orthographic projection of the multiplexer on the base substrate, and the metal shielding portion is connected to a fixed voltage signal to shield signal interference caused by the multiplexer.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 28, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mengmeng Du, Xiangdan Dong, Hongwei Ma, Jun Yan, Bo Cheng
  • Patent number: 11616214
    Abstract: A display device includes a display layer including an active area including a plurality of pixel areas, and a peripheral area adjacent to the active area, an insulating layer disposed on the display layer, the insulating layer including at least one first opening overlapping the plurality of pixel areas, and at least one second opening in the peripheral area, a refractive index layer disposed on the insulating layer, having a refractive index greater than a refractive index of the insulating layer, and spaced apart from the at least one second opening, and a polarizing layer overlapping the refractive index layer. At least a portion of the polarizing layer overlaps the at least one second opening.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il-Joo Kim, Gunwoo Ko, Yong-Hwan Kim, Taekon Kim, Hyunyoung Kim, Jong-Ryuk Park, Wangwoo Lee, Hyungjun Lim, Youngbae Jung, Jung-Hyun Cho
  • Patent number: 11614842
    Abstract: An electronic device, includes: a display panel; and an input sensor on the display panel, wherein the input sensor is configured to operate in a first mode during which the input sensor detects a first input from a user's touch or in a second mode during which the input sensor detects a second input from an input apparatus, wherein the input sensor includes: a first sensing part configured to detect the first input and the second input; and a second sensing part configured to recognize the input apparatus.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyeongnam Bang, Deokjung Kim, Eunyoung Kim, Hyeyun Han
  • Patent number: 11614816
    Abstract: Sensing time of a touch sensor is shortened to increase responsiveness of touch sensing. A display device includes a gate driver, a plurality of touch sensors, and a plurality of touch wirings. The gate driver has a function of supplying a scan signal to the plurality of touch wirings at the same timing, and the touch sensors in different positions sense a plurality of touches at the same timing. In this manner, the responsiveness of touch sensing is increased. The gate driver has a function of controlling a scan signal for refreshing display and a scan signal used by the touch sensor for sensing.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: March 28, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroyuki Miyake, Takahiro Fukutome
  • Patent number: 11614820
    Abstract: The present invention relates to touch sensor detector systems and methods incorporating an interpolated variable impedance touch sensor array and specifically to such systems and methods for gesture recognition and associating a UI element with the recognized gesture. In one embodiment, the present invention provides a variable impedance array (VIA) system for receiving a gesture that includes: a plurality of physical VIA columns connected by interlinked impedance columns; a plurality of physical VIA rows connected by interlinked impedance rows; and a processor configured to interpolate a location and/or pressure of the gesture in the physical columns and rows from an electrical signal from a plurality of column drive sources (connected to the plurality of physical VIA columns through the interlinked impedance columns) sensed at a plurality of row sense sinks (connected to the plurality of physical VIA rows through the interlinked impedance rows).
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: March 28, 2023
    Assignee: Sensel, Inc.
    Inventors: John Aaron Zarraga, Alexander Meagher Grau, Bethany Noel Haniger, Bradley James Bozarth, Brogan Carl Miller, Ilya Daniel Rosenberg, James Frank Thomas, Mark Joshua Rosenberg, Peter Hans Nyboer, Reuben Eric Martinez, Scott Gregory Isaacson, Stephanie Jeanne Oberg, Timothy James Miller, Tomer Moscovich, Yibo Yu
  • Patent number: 11614813
    Abstract: A pointing stick assembly includes: a head having a top surface configured to interface with a finger; a shaft connected to the head, wherein the shaft configured to be moved downward based on a finger pressing down on the head and to be tilted based on a finger tilting the head; a first sensor layer comprising a receiver electrode and a transmitter electrode; a second sensor layer comprising a transmitter electrode; and a third sensor layer comprising a plurality of receiver electrodes. The first sensor layer is configured for detection of presence of a finger based on a change in capacitance between the receiver electrode and the transmitter electrode of the first sensor layer caused by the presence of the finger on the top surface of the head.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: March 28, 2023
    Assignee: Synaptics Incorporated
    Inventors: Wei-Lung Lee, Chih-Chien Chou, Lin-Hsiang Hsieh
  • Patent number: 11614843
    Abstract: A touch panel includes a first substrate and a second substrate. The touch panel includes a drive electrode formed on a surface of the first substrate, a position sensor electrode and a pressing force sensor electrode formed on a surface of the second substrate, a position sensor wiring line that connects the position sensor electrode to a terminal portion, a pressing force sensor wiring line that connects the pressing force sensor electrode to the terminal portion, and a shield wiring line disposed between the position sensor wiring line and the pressing force sensor wiring line in a plan view.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: March 28, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takenori Maruyama, Kazutoshi Kida, Shinji Yamagishi, Takuma Yamamoto, Yasuhiro Sugita, Hiroshi Fukushima
  • Patent number: 11614790
    Abstract: Disclosed are an electronic pen, a method and a device for controlling an electronic pen, and a computer-readable storage medium. The method includes: obtaining state information of the electronic pen; and determining a time for the electronic pen to send coding signal frequency information according to the state information, and controlling the electronic pen to send the coding signal frequency information when reaching the time, to reduce an energy consumption of the electronic pen.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: March 28, 2023
    Assignee: SHENZHEN QIANFENYI INTELLIGENT TECHNOLOGY CO., LTD
    Inventors: Hongyao Zhong, Junjie Lei, Lin Li
  • Patent number: 11609458
    Abstract: According to one embodiment, a display device includes a first drain electrode, a first insulating film which is organic, a first metal electrode in contact with the first drain electrode in a first through-hole of the first insulating film, a second insulating film which is organic, a first transparent electrode in contact with the first metal electrode in a second through-hole of the second insulating film and formed of a transparent conductive material, a third insulating film which is inorganic, a pixel electrode in contact with the first transparent electrode in a third through-hole of the third insulating film and a metal wire located between the first insulating film and the second insulating film and formed of a material identical to that of the first metal electrode.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: March 21, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventor: Hideki Shiina
  • Patent number: 11609637
    Abstract: A switch assembly that provides haptic feedback includes a printed circuit board (PCB) having a first planar surface that faces in a first direction and a second planar surface that faces in a second direction, the second direction being opposite from the first direction, a touch plate having a first surface that faces in the first direction and a second surface that faces in the second direction, wherein the first surface of the touch plate is proximate the second planar surface of the PCB, and a haptic exciter that has a conductive coil of wire having a hollow inner core and a magnet that is at least partially disposed within the hollow inner core of the coil of wire such that the magnet alternatively moves in the first and second directions as an alternating current passes through the conductive coil of wire.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: March 21, 2023
    Assignee: Joyson Safety Systems Acquisition LLC
    Inventor: Kenneth Myers
  • Patent number: 11609665
    Abstract: A system and method for sharing and manipulating digital content allows users an intuitive mechanism with which to interact with touchscreen devices. A provided device with short-range wireless connectivity can interact with a mobile device by providing physical contact points that can be moved or adjusted to interact with displayed content. A series of the physical contact points distributed about the perimeter of the provided device allows an application to collect data regarding the position and orientation of the provided device placed upon the screen of the mobile device. A second set of physical contact points, also made of conductive material, contains at least one individual contact point that functions as a capacitive ‘button’ when the user touches it. Upon placement of the provided device on the capacitive screen of a mobile device, real-time tracking of the changing touch patterns can provide a more intuitive interface for handling digital content.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: March 21, 2023
    Inventor: Peter Andras Vikar
  • Patent number: 11609653
    Abstract: A touch apparatus according to an exemplary embodiment of the present invention includes: a touch sensor; and a touch controller that operates in a resonance driving mode during which a first driving signal is output for generation of a resonance signal of a stylus pen to the touch sensor and an idle mode during which the driving signal output to the touch sensor is stopped, and obtains first touch coordinate information from a detection signal input from the touch sensor during the resonance driving mode.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 21, 2023
    Assignee: HIDEEP INC.
    Inventors: Seyeob Kim, Bonkee Kim
  • Patent number: 11609651
    Abstract: A device with touch sensing. The device includes a first sensor configured to detect a touch and to provide a first sensing signal, a second sensor configured to detect another touch and to provide a second sensing signal, a threshold generator configured to set a first threshold by a reflecting of an amount of change of the second sensing signal to an initial threshold, and a sensor circuit configured to generate a first differential signal based on the first sensing signal, and to determine a first touch based on a consideration of the first threshold with respect to a first signal generated based on the first differential signal and the first sensing signal.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: March 21, 2023
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Gye Won Lee, Jong Yun Kim, Mun Sun Jung, Hong Seok Lee, Chang Ju Lee, Hee Sun Oh
  • Patent number: 11610958
    Abstract: A display apparatus includes: a substrate including a first area, a second area surrounding the first area and spaced apart from the first area, and a third area between the first area and the second area; a plurality of pixel circuits on the substrate at the second area, each of the plurality of pixel circuits including one or more thin-film transistors, and a storage capacitor; a plurality of lines on the substrate at the third area, and electrically connected to the pixel circuits, respectively; an encapsulation member covering the pixel circuits; an input sensing section on the encapsulation member to overlap with the second area, and including sensing electrodes, and trace lines electrically connected to the sensing electrodes; and a plurality of shielding portions on the encapsulation member to overlap with at least one of the plurality of lines, the plurality of shielding portions being spaced apart from each other.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: March 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changho Lee, Taeyong Eom, Dongjin Moon
  • Patent number: 11609673
    Abstract: A display device is provided. The display device comprise a substrate a display layer disposed on the substrate and including a plurality of light-emitting areas, and a touch layer disposed on the display layer and including a touch area and a non-touch area, the touch layer includes: a plurality of first sensor electrodes and a plurality of second sensor electrodes disposed in the touch area, and a plurality of antenna patterns disposed in a portion of the touch area disposed adjacent to the non-touch area, the plurality of antenna patterns includes: a first antenna pattern transmitting a transmit signal, and a second antenna pattern receiving the transmit signal, wherein each of the first antenna pattern and the second antenna pattern is at least partially surrounded by one of the plurality of first sensor electrodes or one of the plurality of second sensor electrodes in a plan view.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: March 21, 2023
    Inventors: Sang Rock Yoon, Ki Seo Kim, Eun Jin Sung, Seung Wook Chun
  • Patent number: 11604544
    Abstract: A touch sensor includes a first area and a second area; first electrode units comprising a plurality of first touch electrodes arranged in a first direction and electrically connected to one another and located in the first area; second electrode units comprising a plurality of second touch electrodes arranged in a second direction and electrically connected to one another and located in the first area; and a first electrode pattern comprising a first portion located in the first area and electrically connected to one of the first electrode units that is adjacent thereto, and a second portion extended from the first portion to the second area, wherein a width of the first electrode pattern in the first direction is less than a width of the first touch electrodes in the first direction and is greater than half the width of the first touch electrodes.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Cheol Kim, Hwan Hee Jeong, Mi Kyung Seo
  • Patent number: 11604524
    Abstract: An electronic device including a display unit and an input sensing unit including a sensing insulating layer including a first insulating layer disposed on the display unit, and a second insulating layer disposed on the first insulating layer and including first contact holes and second contact holes, a first sensing electrode including first sensing patterns and a plurality of first conductive patterns disposed between the first sensing patterns, and a second sensing electrode including second sensing patterns and second conductive patterns disposed between the second sensing patterns, in which the first sensing patterns and the first conductive patterns are coupled to each other through corresponding ones of the first contact holes, and at least one of the first sensing electrode and the second sensing electrode is in contact with the first insulating layer through the second contact holes.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinkyu Kim, Yeon-Mun Jeon, Byoung-Chan Kwak, Jooil Kim, Sangmin Baek, Jungchul Woo, Kwangrae Lee
  • Patent number: 11604525
    Abstract: The disclosure provides a display panel including a substrate, an active layer, a first electrode layer, a common electrode layer, a cathode layer, and a spacer. The active layer is located on the substrate. The first electrode layer is located on the active layer, and the first electrode layer includes a first gate and a second gate. The common electrode layer is located on the first electrode layer. The common electrode layer has a first region, a second region, and a first necking region. The first necking region connects the first region and the second region. The first region and the first gate are correspondingly disposed, and the second region and the second gate are correspondingly disposed. The cathode layer is located on the common electrode layer. The spacer is located between the common electrode layer and the cathode layer. The spacer and the first necking region are correspondingly disposed.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: March 14, 2023
    Assignee: Innolux Corporation
    Inventors: Chung-Wen Yen, Hsia-Ching Chu, Kuan-Feng Lee, Yu-Sheng Tsai
  • Patent number: 11604539
    Abstract: A charge compensation circuit is disclosed that provides amplified charge cancellation. A touch controller is disclosed that includes such a charge compensation circuit and may realize improved immunity to baseline capacitance signals that are much larger than a change in capacitance due to proximity of an object. Such a charge compensation circuit may include a capacitor, a driver circuit arranged to apply a pulsed voltage signal to the capacitor, and a current conveyor having a programmable gain and arranged to amplify an initial charge generated by the capacitor in response to the pulsed voltage signal and provide an amplified charge to an output of the charge cancellation circuit.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: March 14, 2023
    Assignee: Microchip Technology Incorporated
    Inventors: Torbjoern Loevseth Finnoey, Lei Zou
  • Patent number: 11604545
    Abstract: An electroluminescent display is disclosed. The electroluminescent display includes an electroluminescent element disposed in a display area of a substrate, an encapsulation unit disposed on the electroluminescent element, a first mesh electrode layer disposed on the encapsulation unit, an insulating layer covering the first mesh electrode layer, and a second mesh electrode layer disposed on the insulating layer. The first mesh electrode layer includes a first mesh electrode and a second mesh electrode separated from the first mesh electrode. The second mesh electrode layer includes a third mesh electrode extended in a first direction and a fourth mesh electrode extended in a second direction intersecting the first direction through the first mesh electrode intersecting the third mesh electrode.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: March 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jonghyun Han, Seungrok Shin
  • Patent number: 11605842
    Abstract: A cylindrical battery comprising a lithium secondary battery and having a pressure sensor for measuring an internal pressure of the secondary battery, the cylindrical battery as a whole includes: an electrode assembly including a cathode plate, an anode plate, and a separator electrically insulating the cathode plate and the anode plate from each other; the pressure sensor positioned on one side of the electrode assembly and embedded in the cylindrical battery; and a top cap positioned on the other side of the electrode assembly, wherein the pressure sensor has an insulating property.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: March 14, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jinsoo Kim, Joo Hwan Sung, Minsu Cho, Sunghae Park
  • Patent number: 11605679
    Abstract: A display device including: a display panel; and a touch member on the display panel and including a first touch conductive layer, a second touch conductive layer, and a first touch insulating film between the first touch conductive layer and the second touch conductive layer, wherein the first touch conductive layer includes a first touch connection pattern including a first connecting area and a second connecting area having a larger width than that of the first connecting area, wherein the second touch conductive layer includes first touch sensor patterns connected by the first touch connection pattern, second touch sensor patterns insulated from the first touch sensor patterns, and a second touch connection pattern connecting the second touch sensor patterns with one another, and wherein the second connecting area of the first touch connection pattern is between the first touch sensor pattern and the second touch sensor pattern facing each other.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jeong Woo Kim
  • Patent number: 11604527
    Abstract: A display device may include a display panel, a sensor unit, and a touch driver. The sensor unit is provided on the display panel and may output a sensing signal corresponding to a touch input. The sensor unit may include a first electrode and may include a conductive layer provided between the display panel and the first electrode and spaced from the first electrode. The touch driver may include a signal receiver. The signal receiver may include a first input terminal electrically coupled to the first electrode, may include a second input terminal electrically coupled to the conductive layer, may receive the sensing signal, and may output a signal corresponding to a voltage difference the first input terminal and the second input terminal.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: March 14, 2023
    Inventor: Do Ik Kim
  • Patent number: 11604534
    Abstract: Some embodiments of the present disclosure may include a controller for an object-recognition system. The controller may include a capacitive-sensor-button controller configured to provide a button-status report at least partially responsive to proximity of the object to specified areas of a capacitive sensor. The controller may also include a recognizer configured to generate an object identifier at least partially responsive to the button-status report when an object having a plurality of detectable elements in a predetermined spatial pattern is in proximity thereof. Some embodiments of the present disclosure may include a controller for an object-recognition system. The controller may include a reader configured to capture channel-capacitance measurements of a capacitive sensor.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 14, 2023
    Assignee: Microchip Technology Incorporated
    Inventors: Johan Vaarlid, Petter Diderik Breedveld
  • Patent number: 11600669
    Abstract: An electronic device includes: a display panel configured to display an image; an input sensor on the display panel and comprising a first sensing electrode and a second sensing electrode that is electrically insulated from the first sensing electrode, the input sensor being configured to sense a first input in a first mode and to sense a second input in a second mode; and an input device configured to provide the second input to the input sensor, wherein at least one of the first or second sensing electrodes comprises: a main mesh pattern in a crossing area in which the first and second sensing electrodes cross each other; and a sub mesh pattern in a non-crossing area on which the first and second sensing electrodes do not cross each other and which has a size different from that of the main mesh pattern.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: March 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Seok Na, Younggu Kang, Hyun-Sung Park, Dongjin Seo, Yu Deok Seo
  • Patent number: 11599212
    Abstract: A display module includes a display panel and an input sensing unit. The display panel includes a base surface. The input sensing unit is directly disposed on the base surface. The input sensing unit includes a first electrode, a second electrode, and an insulation layer. The first electrode extends in a first direction. The first electrode includes a first opening area. The second electrode extends in a second direction intersecting the first direction. The second electrode is longer than the first electrode. The second electrode includes a second opening area of a size greater than a size of the first opening area. The insulation layer is configured to insulate the first electrode from the second electrode.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: March 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunjae Na, Jaseung Ku
  • Patent number: 11599231
    Abstract: The present disclosure relates to a touch sensor including: a first electrode layer including a first main electrode and a first auxiliary electrode formed to be spaced apart from the first main electrode; a second electrode layer including a second main electrode and a second auxiliary electrode formed to be spaced apart from the second main electrode; and an insulating layer positioned between the first electrode layer and the second electrode layer and provided with a contact hole, in which one or more of the first electrode layer and the second electrode layer have a line width of an electrode pattern region corresponding to the contact hole larger than the contact hole, and an image display device including the same.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: March 7, 2023
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Cheol-Hun Lee, Do-Hyoung Kwon
  • Patent number: 11599222
    Abstract: This detection device includes a sensor electrode, a shield electrode, which has a parasitic capacitance between the sensor electrode and the shield electrode and is driven by an AC voltage, a detection circuit, which is electrically connected to the sensor electrode and the shield electrode and detects the electrostatic capacitance of the sensor electrode, a capacitor, which is connected in series between the sensor electrode and the detection circuit, and a bias unit, which biases the potential of the sensor electrode via a resistor.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: March 7, 2023
    Assignee: Alps Alpine Co., Ltd.
    Inventor: Tatsumi Fujiyoshi
  • Patent number: 11600671
    Abstract: An electronic panel may include a plurality of sensing electrodes and a plurality of sensing lines. The sensing lines may include a plurality of first group sensing lines and a plurality of second group sensing lines, which are spaced apart from each other in a specific direction and are alternately arranged with respect to each other. Each of the first group sensing lines and the second group sensing lines may include a first pattern layer and a second pattern layer, which are spaced apart from each other with an insulating layer interposed therebetween and are coupled to each other through the insulating layer. Each of the first group sensing lines may include a first pattern layer in a specific region, and each of the second group sensing lines may include a second pattern layer in the specific region.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: March 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeongguk Jeon, Dong-Hyun Lee, Deok-Young Choi
  • Patent number: 11592918
    Abstract: The present disclosure provides a flexible touch panel and a display device. The flexible touch panel includes a flexible substrate baseplate, and a touch electrode layer including a plurality of touch electrodes arranged on the flexible substrate baseplate. The flexible touch panel includes at least one bendable area, and at least one of the plurality of touch electrodes has a cutoff region within the bendable area to disconnect the touch electrode.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: February 28, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lingran Wang, Tian Dong, Shiming Shi
  • Patent number: 11592927
    Abstract: A semiconductor device for an input device comprises sensor circuitry, a plurality of contacts and a sensor bus. A first contact of the plurality of contacts is configured to be coupled to a first sensor electrode of the plurality of sensor electrodes, a second contact of the plurality of contacts is configured to be coupled to a second sensor electrode of the plurality of sensor electrodes, and a third contact of the plurality of contacts is configured to be coupled to a third sensor electrode of the plurality of sensor electrodes. The sensor bus comprises a plurality of traces. A first trace of the plurality of traces is configured to couple the first contact and the second contact to a first transmitter of the sensor circuitry and a second trace of the plurality of traces is coupled to the third contact to a first receiver of the sensor circuitry.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: February 28, 2023
    Assignee: Synaptics Incorporated
    Inventor: Joseph Kurth Reynolds