Including Impedance Detection Patents (Class 345/174)
  • Patent number: 11709567
    Abstract: A display device includes a display panel and an input sensing part disposed on the display panel. The input sensing part includes first sensing electrodes extending in a first direction and arranged in a second direction crossing the first direction, first lines connected to the first sensing electrodes, second sensing electrodes extending in the second direction and arranged in the first direction, and second lines connected to the second sensing electrodes. The second lines include second-first lines defined as j-th to k-th second lines, and the first lines are connected to the second-first lines.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Janghui Kim, Jaewon Kim, Innam Lee, Choonhyop Lee
  • Patent number: 11709564
    Abstract: According to various embodiments, an electronic device may comprise: one or more first electrodes; one or more second electrodes arranged in at least a different direction from the one or more first electrodes; one or more third electrodes arranged between the one or more second electrodes, respectively, in the same direction as the second electrodes when viewed from above; and a control circuit, wherein the control circuit is configured to detect touch information related to an external object, at least on the basis of a change in a capacitance value between at least a part of the one or more first electrodes and at least a part of the one or more second electrodes, and detect hovering information related to the external object, at least on the basis of a capacitance value related to at least a part of the one or more third electrodes. Various other embodiments are possible.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: July 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoondo Heo, Sangheon Park, Seunghoon Ko, Minuk Kim, Keunsik Lee
  • Patent number: 11709559
    Abstract: A touch display device is provided. The touch display device includes a display panel configured to display an image, a touch sensor including a first touch electrode and a second touch electrode arranged to cross each other, and a dummy touch electrode disposed adjacent to the first touch electrode and the second touch electrode, on the display panel, and a touch driver configured to drive the first touch electrode and the second touch electrode and apply a signal or a voltage to the dummy touch electrode.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: July 25, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Su Han, Hwi Deuk Lee, Yang Sik Lee, Jong Sung Kim
  • Patent number: 11709561
    Abstract: A computing device includes signal generation circuitry and also includes a location on the computing device that is operative to couple a signal generated by the signal generation circuitry into a user. For example, the computing device includes signal generation circuitry that generates a signal that includes information corresponding to a user and/or an application that is operative within the computing device. The signal generation circuitry couples the signal into the user from a location on the computing device based on a bodily portion of the user being in contact with or within sufficient proximity to the location on the computing device that facilitates coupling of the signal into the user. Also, the signal may be coupled via the user to another computing device that includes a touchscreen display that is operative to detect and receive the signal.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: July 25, 2023
    Assignee: SigmaSense, LLC.
    Inventors: Daniel Keith Van Ostrand, Richard Stuart Seger, Jr., Shayne X. Short, Timothy W. Markison
  • Patent number: 11703980
    Abstract: The present invention provides a touch display device, touch display device includes an organic light emitting diodes display panel and a touch layer. The organic light emitting diodes display panel includes common cathode and an encapsulation layer. The encapsulation layer is located between the common cathode and the touch layer. The touch layer includes touch units arranged in an array, each of the touch units is constituted by metal meshes. In each of the touch units, a percentage of a metal area of the metal meshes to an area of each of the touch units is greater than 0% and is less than or equal to 25%.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: July 18, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jian Ye
  • Patent number: 11703979
    Abstract: Some disclosed methods involve controlling, via a control system of an apparatus, a touch sensor system to obtain touch sensor data in a touch sensor system active area of the apparatus. Some disclosed methods involve controlling, via the control system, a fingerprint sensor system of the apparatus to obtain fingerprint sensor data in a fingerprint sensor system active area of the apparatus. Some disclosed methods involve determining, via the control system and based on the touch sensor data, n touch locations corresponding to n last user touches and controlling, via the control system, a size of the touch sensor system active area based, at least in part, on the n touch locations.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: July 18, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Rakesh Pallerla, Naga Chandan Babu Gudivada, Kritpal Singh Dhindhsa
  • Patent number: 11699997
    Abstract: A device for closing or opening two or more main switches of corresponding electrical power supply circuits of related electrical devices includes a plate having at least two capacitive touch contact areas, and a control circuit configured to control two or more additional switches so that, in the event that only one of the contact areas is touched, only the corresponding main switch is opened or closed, while in the event of a combined touching of at least two of the contact areas, one of the additional switches is opened or closed.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: July 11, 2023
    Inventors: Alberto Bacchin, Edoardo Cesari
  • Patent number: 11698702
    Abstract: A touch sensing unit, includes a plurality of first sensing electrodes and a plurality of second sensing electrodes intersecting with and insulated from the plurality of first sensing electrodes. The plurality of first sensing electrodes includes a plurality of first sensor portions and a plurality of first connection portions connecting each of the plurality of first sensor portions with one another. The plurality of second sensing electrodes includes a plurality of second sensor portions, a plurality of stem sensors extended from the plurality of second sensor portions, and a plurality of second connection portions connecting each of the plurality of sensor portions with one another. Each of the plurality of first sensor portions includes a plurality of depressions indented inwardly. Each of the plurality of stem sensors is disposed such that it is at least partially surrounded by a respective depression of the plurality of depressions.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: July 11, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyeong Nam Bang, Chang Ho Lee, Hye Yun Han, Young Bae Jung
  • Patent number: 11696727
    Abstract: The present disclosure relates to technology for estimating bio-information by using a foldable electronic device. The foldable electronic device includes a main body part, having a first main body and a second main body, configured to fold along a folding line; a first sensor provided on the first main body, and configured to obtain a contact image of an object of a user; a second sensor provided on the first main body, and configured to measure a degree of folding of the main body part; and a processor configured to estimate bio-information of the user, based on the contact image of the object and the degree of folding.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: July 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Min Kang, Seung Woo Noh, Sang Yun Park, Jin Woo Choi
  • Patent number: 11698698
    Abstract: A sensing method includes sensing a first touch source at a first time point; transferring a first sensing signal of the first touch source to a CPU at the first time point; sensing a second touch source at a second time point; transferring a second sensing signal of the second touch source to the CPU at the second time point; stopping transferring the second sensing signal at a third time point, and the second touch source is away from the touch display device at a fourth time point; and the second time point is earlier than the third time point, the third time point is earlier than the fourth time point, and the first touch source is different from the second touch source.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: July 11, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Hiroyuki Kaneko, Hung-Wei Tseng, Yi-Chun Kuo
  • Patent number: 11693039
    Abstract: A device provides high impedance contact pads for an electrostatic charge sensor. The contact pads are shared between the electrostatic charge sensor and drivers. The contact pads are set to a high impedance state by reducing current leakage through the drivers. Compared to electrostatic charge sensor with low impedance contact pads, the electrostatic charge sensor disclosed herein has high sensitivity, and is able to detect weak electrostatic fields.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: July 4, 2023
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Massimo Orio
  • Patent number: 11693516
    Abstract: A touch display device may include a touch panel configured to be time-divisionally driven in touch sensing and display periods by a synchronization signal and including touch electrodes, and a touch driver to drive the touch panel. The touch driver may include: a touch sensing circuit to supply a touch driving signal to the touch electrodes, to receive an analog touch sensing signal from the touch electrodes, and to sample an integral value of the analog touch sensing signal to output a digital sensing data; a touch control circuit to generate a pulse width modulation (PWM) signal and to receive the digital sensing data to determine a touch; and a timing control circuit to provide an output signal to the touch sensing circuit to control a sampling timing of the integral value of the analog touch sensing signal.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: July 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Sojung Jung
  • Patent number: 11693518
    Abstract: The present disclosure relates to a touch driver circuit capable of reducing the distortion of a common voltage modulation signal caused by line resistance. The touch driver circuit may include a touch power integrated circuit configured to generate a reference gamma voltage set to output the reference gamma voltage set through a gamma transmission path during a display period, and generate a touch driving voltage to output the touch driving voltage through the gamma transmission path during a touch period, and a source-readout integrated circuit configured to drive a source driving circuit block using the reference gamma voltage set during the display period, and generate a common voltage modulation signal using the touch driving voltage to drive a readout circuit block using the generated common voltage modulation signal during the touch period.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: July 4, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Hee Yoon Jung, Hyung Sub Kim, Jung Hyun Tark
  • Patent number: 11693524
    Abstract: A touch sensor may include a substrate, a sensing pattern, and bridge electrodes. The sensing pattern may include a first pattern along a first direction and a second pattern along a second direction. The second pattern may include unit patterns isolated from each other. The bridge may electrically connect neighboring unit patterns, and the bridge electrodes adjacent in the first direction may be parallel to each other. An angle between an extending direction of the bridge electrode and the first direction may be from 45° to 89°. The substrate, the bridge electrode and the sensing pattern may be bent together to form a bending portion. The bridge electrode may extend in a direction the same as a bending direction. A bending angle between a body of the substrate which is not bent and an end portion of the bending portion may be greater than 0° and less than 180°.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: July 4, 2023
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Keon Kim, Byung Jin Choi
  • Patent number: 11690174
    Abstract: A display device and a manufacturing method thereof are provided. The display device includes a display panel and a flexible circuit board electrically connected with the display panel. The flexible circuit board includes a first circuit board, a second circuit board and a conductive portion; the first circuit board includes a first substrate, and a main contact pad, a first wire and a second wire provided on the first substrate; the second circuit board includes a second substrate, a relay contact pad and a third wire provided on the second substrate; and the conductive portion is configured for electrically connecting the main contact pad and the relay contact pad.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: June 27, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ren Xiong, Fan Li, Qiang Tang, Fei Shang, Haijun Qiu, Yuanyuan Chai, Huiqiang Song
  • Patent number: 11687194
    Abstract: An operation detection device includes a detection unit to detect a physical quantity changing upon approach or contact of a detected object to or with an operation surface and to output detection information allowing for calculation of coordinates of an approach or contact position of the detected object, and a control unit to, when the physical quantity based on the detection information satisfies a predetermined condition, calculate and set first detected coordinates of the detected object as reference coordinates and does not perform coordinate update when coordinates calculated after the reference coordinates are included in a first region centered at the reference coordinates, and when coordinates calculated after the reference coordinates are outside the first region, set a second region narrower than the first region and perform the coordinate update, and when coordinates calculated after the updated coordinates are included in the second region, not to perform the coordinate update.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: June 27, 2023
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Syogo Yamaguchi
  • Patent number: 11687205
    Abstract: The present disclosure relates to an electronic apparatus. The electronic apparatus includes a base substrate, a first sensing electrode, and a second sensing electrode. A hole is defined through the base substrate. The first sensing electrode includes first sensing patterns and first connection patterns, which are arranged in a first direction. The second sensing electrode includes second sensing patterns and second connection patterns, which are arranged in the first direction. One first connection pattern and one second connection pattern are spaced apart from each other in a second direction with the hole defined therebetween. A first distance in the second direction between the one first connection pattern and the one second connection pattern is greater than a second distance in the second direction between another first connection pattern and another second connection pattern.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: June 27, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyungsu Lee, Jong-Hwa Kim, Jeongyun Han
  • Patent number: 11687181
    Abstract: Disclosed are a display apparatus with integrated touch screen and a method of manufacturing the display apparatus, which prevent short circuit between touch electrodes. The display apparatus with integrated touch screen including a light emitting layer disposed on a substrate, an encapsulation layer disposed on the light emitting layer, a plurality of touch electrodes disposed on the encapsulation and spaced apart from each other, and an upper PAC layer disposed on the plurality of touch electrodes. The upper PAC layer is patterned to be disposed on the plurality of touch electrodes.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: June 27, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyangmyoung Gwon, Minjoo Kim, Sungjin Kim, Jaehyung Jang
  • Patent number: 11686962
    Abstract: A display panel, a display device and a preparation method for a display panel. The display panel includes a first substrate; a conductive structure layer is formed on a side surface of the first substrate, and the conductive structure layer is provided with a binding region close to a side edge thereof; the binding region of the conductive structure layer protrudes from a first end surface of the first substrate, and a protruding part of the conductive structure layer forms a first protruding portion; the first protruding portion bends toward a side of the first substrate away from the conductive structure layer; and a turning portion of the first protruding portion is fixed on the first end surface of the first substrate. The binding region of the conductive structure layer is located at a bending part of the conductive structure layer and is not carried on the first substrate.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: June 27, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhongbao Wu, Chuandong Liao, Ruoyu Ma, Haiwei Sun
  • Patent number: 11681336
    Abstract: A removable adhesive member and a display device using the same is provided. The removable adhesive member includes a first adhesive section, a first connecting section, and a tearing portion. The two opposite surfaces of the first adhesive section respectively adhere to the two objects. The first connecting section is connected to the first adhesive section. The first connecting section includes a first adhesive layer and two first protective layers. One side of the first adhesive section extends to form the first adhesive layer. The first protective layers are respectively laminated to two opposite surfaces of the first adhesive layer. The tearing portion is connected to the first adhesive section through the first connecting section, thereby avoiding rupture in pulling the tearing portion. The tearing portion is conveniently pulled up by a user, such that the first adhesive section removes from the objects to disassemble the objects.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: June 20, 2023
    Assignees: Interface Technology (Chengdu) Co., Ltd, Interface Optoelectronics (Shenzhen) Co., Ltd., Interface Optoelectronics (Wu xi) Co., Ltd, General Interface Solution Limited
    Inventors: Chun Ting Pan, Feng Chun Hsieh, Yi Hsin Lin
  • Patent number: 11681402
    Abstract: A touch sensor device (TSD) includes TSD electrodes associated with a surface of the TSD. Also, an overlay that includes marker electrode(s) is also associated with a region of the surface of the TSD. The TSD also includes drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes. A DSC is configured to provide a TSD electrode signal to a TSD electrode and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the marker electrode(s) of the overlay. Processing module(s) is configured to process a digital signal generated by the DSC and other digital signals generated by other DSCs determine the region of the surface of the TSD that is associated with the overlay and to adapt sensitivity of the TSD within that region.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: June 20, 2023
    Assignee: SigmaSense, LLC.
    Inventors: Patrick Troy Gray, Gerald Dale Morrison, Daniel Keith Van Ostrand, Richard Stuart Seger, Jr., Kevin Joseph Derichs, Shayne X. Short, Timothy W. Markison
  • Patent number: 11681394
    Abstract: A detecting device includes a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction intersecting the first direction, the first electrodes and the second electrodes being disposed facing each other with an insulating layer interposed therebetween, a first electrode selection circuit configured to change a combination of a plurality of selected first electrodes for each of a plurality of periods obtained by dividing one frame period and supply a drive signal to the selected first electrodes, and a detection circuit configured to detect capacitance generated between the first electrodes and the second electrodes due to the drive signal. The first electrode selection circuit changes a frequency of the drive signal for each of the periods.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: June 20, 2023
    Assignee: Japan Display Inc.
    Inventor: Fumihoru Nakano
  • Patent number: 11681391
    Abstract: A display device includes a display panel configured to display an image, an input sensor disposed on the display panel to sense an input and including a first area and a second area, and a sensor controller connected to the input sensor. The input sensor includes first sensing electrodes disposed in the first area, second sensing electrodes disposed in the second area, and a boundary sensing electrode disposed to overlap a boundary between the first and second areas. The boundary sensing electrode forms a mutual capacitor with one or more of the first sensing electrodes that are adjacent to the boundary sensing electrode, and forms a mutual capacitor with one or more of the second sensing electrodes that are adjacent to the boundary sensing electrode.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: June 20, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il Ho Lee, Sanghun Park, Jihoon Kim, Yongsub So
  • Patent number: 11683035
    Abstract: A system for sensing touch or proximity include: a first number of input terminals configured to couple one or more capacitive sensors, a second number of transferring units configured to transfer charges from the one or more capacitive sensors through the first number of input terminals in transferring phases of cycles of the one or more capacitive sensor, wherein at least one of the first and second numbers is equal to or greater than two, and a first switching unit, coupled between the first number of input terminals and the second number of transferring units, configured to selectively electrically couple any one of the first number of input terminals to any one of the second number of transferring units in the transferring phases.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: June 20, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yaohua Pan, Jun Zhang
  • Patent number: 11676542
    Abstract: A display device includes: a display panel including an active area and a peripheral area adjacent to the active area and including a plurality of pixels overlapping the active area and a scan driving circuit overlapping a portion of each of the active area and the peripheral area. The scan driving circuit is configured to drive the plurality of pixels. A sensing sensor is disposed on the display panel and includes first sensing electrodes and second sensing electrodes overlapping the active area and insulated from each other and sensing lines connected to the first sensing electrodes and the second sensing electrodes. The plurality of pixels include: first pixels that do not overlap the scan driving circuit; and second pixels that overlap the scan driving circuit, wherein at least a portion of the sensing lines overlaps the scan driving circuit.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Hee Lee, Hyang-A Park, Sunho Kim
  • Patent number: 11675456
    Abstract: According to an aspect, a display apparatus includes: a substrate; a plurality of pixel electrodes; a plurality of detection electrodes arranged in a matrix in a display area of the substrate; a plurality of detection electrode lines coupled to the respective detection electrodes; a plurality of first electrodes provided in the same layer as the detection electrodes or the detection electrode lines and extending in a first direction; a plurality of switching elements coupled to the respective pixel electrodes; a plurality of signal lines coupled to the switching elements and extending in a second direction crossing the first direction; a coupling member provided in a peripheral area outside the display area and configured to couple ends of the first electrodes to each other; and a drive circuit configured to output a first drive signal in a first sensing period in which an electromagnetic induction method is used.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: June 13, 2023
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Hiroshi Mizuhashi, Fumitaka Gotoh, Gen Koide, Tadayoshi Katsuta
  • Patent number: 11676520
    Abstract: The present disclosure relates to a technology for a power management device applied to a display device, in which driving voltages having different levels are supplied to driving devices having different sizes of load in different times, and this allows all of the driving devices to stably receive voltages within a limited range even though the number of driving devices increases according to the enlargement of a display panel.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: June 13, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Geon Soo Jang, Hyung Sub Kim, Jung Hyun Tark
  • Patent number: 11673471
    Abstract: A vehicle interior control panel includes a pressure-sensitive slider switch embedded within the thickness and beneath a decorative surface of a deco panel. The slider switch in non-visible and includes a variable resistance layer that sequentially and electrically connects different pairs of electrical contacts in the deco panel as a user-applied pressure is moved across the decorative surface and over the slider switch. The slider switch operates to change a parameter or characteristic of a display panel during use. Light from a light source beneath the deco panel is emitted at the decorative surface through otherwise non-visible perforations. The control panel appears to be only a wood panel until activated via user-applied pressure.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: June 13, 2023
    Assignee: Faurecia Interior Systems, Inc.
    Inventors: Hugo Piccin, Mark Greenspan, Lavinia Danielescu
  • Patent number: 11675449
    Abstract: An input sensor includes: a first sensing electrode including first sensing patterns and a first pattern disposed between the first sensing patterns; a second sensing electrode disposed on the same layer as the first sensing patterns; and a floating pattern including a plurality of segments each overlapping the first pattern and insulated from the second sensing electrode, wherein at least one of the plurality of segments is surrounded by a portion overlapping the first pattern among the second sensing electrode.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeri Jeong, Tae Yong Eom, Kicheol Kim, Youngbae Jung
  • Patent number: 11669193
    Abstract: A position detection method performed using a capacitive touch sensor with line electrodes two-dimensionally arranged. The method includes: acquiring first two-dimensional data indicating a first distribution of detection values of capacitance on the touch sensor; recognizing that a foreign object is present in an area on the touch sensor based on the first two-dimensional data; in response to the recognizing that the foreign object is present in the area on the touch sensor based on the first two-dimensional data, using a first threshold that is lower than a second threshold for detecting a first touch position or touch area inside of the area on the touch sensor in which the foreign object is present; and detecting the first touch position or touch area inside of the area on the touch sensor in which the foreign object is present based on the first two-dimensional data and the first threshold.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: June 6, 2023
    Assignee: Wacom Co., Ltd.
    Inventors: JuiMin Liu, Shigeyuki Sano
  • Patent number: 11668985
    Abstract: The present invention provides a liquid crystal display device provided with an in-cell touch panel, capable of reducing or preventing color mixing in an oblique view while reducing or preventing a reduction in transmittance, and of reducing or preventing a reduction in display quality. The liquid crystal display device includes: a first substrate; a second substrate facing the first substrate; and a liquid crystal layer between the first substrate and the second substrate. The first substrate includes: a thin-film transistor; a pixel electrode connected to the thin-film transistor; a color filter layer including color filters of multiple colors; a touch panel line on a liquid crystal layer side of the color filter layer; and a flattening film on a liquid crystal layer side of the touch panel line.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: June 6, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Junichi Morinaga
  • Patent number: 11670064
    Abstract: A method includes detecting presence of a handheld device in proximity of a touch enabled device and negotiating communication capabilities between the handheld device and a digitizer system of the touch enabled device. At least one of the handheld device and the digitizer system is configured to match a defined communication capability of the other of the at least one of the handheld device and digitizer system. Input from the handheld device is tracked via an electrostatic communication channel between the handheld device and the digitizer system based on the defined communication configuration.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: June 6, 2023
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Arie Gur, Amir Zyskind, Ilan Geller
  • Patent number: 11669202
    Abstract: According to an embodiment, an electronic device may include: a processor; and a touch circuit configured to output, to the processor, information associated with a touch on at least one surface of the electronic device. The touch circuit may be configured to: generate first raw data including a first value associated with capacitance for each of multiple channels of the touch circuit; generate a first baseline on the basis of the first raw data; identify whether the first raw data satisfies a designated condition; and identify whether the first baseline is reset, on the basis of whether the raw data satisfies the designated condition.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sanghun Kwak, Daehyun Yoo, Bongjun Ko, Mansung Kim, Jaeho Lee, Junghoon Choi, Changjin Kim, Sangheon Park, Jongdae Park
  • Patent number: 11669199
    Abstract: Acoustic touch and/or force sensing system architectures and methods for acoustic touch and/or force sensing can be used to detect a position of an object touching a surface and an amount of force applied to the surface by the object. The position and/or an applied force can be determined using time-of-flight (TOF) techniques, for example. Acoustic touch sensing can utilize transducers (e.g., piezoelectric) to simultaneously transmit ultrasonic waves along a surface and through a thickness of a deformable material. The location of the object and the applied force can be determined based on the amount of time elapsing between the transmission of the waves and receipt of the reflected waves. In some examples, an acoustic touch sensing system can be insensitive to water contact on the device surface, and thus acoustic touch sensing can be used for touch sensing in devices that may become wet or fully submerged in water.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: June 6, 2023
    Assignee: Apple Inc.
    Inventors: Marduke Yousefpor, Mohammad Yeke Yazdandoost, Aaron Scott Tucker, Marcus Yip, Ehsan Khajeh, Brian Michael King, Giovanni Gozzini
  • Patent number: 11669212
    Abstract: A touch panel includes first touch electrodes, second touch electrodes, and third touch electrodes. The first touch electrodes include sub electrodes spaced apart from one another in a first direction. The second touch electrodes extend in a second direction crossing the first direction. The second touch electrodes are spaced apart from one another in the first direction. The third touch electrodes extend in the second direction and are spaced apart from one another in the first direction. The third touch electrodes are shaped differently than the second touch electrodes.
    Type: Grant
    Filed: May 30, 2021
    Date of Patent: June 6, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: A-Ra Jo, Sang-Hyun Lim, Chang-Sub Jung, Jae-Woo Choi
  • Patent number: 11662854
    Abstract: A method for improving flexibility of a circuit board, e.g., comprising a touch-based sensor, and reducing manufacturing costs by eliminating routing around a border of the touch-based sensor is presented herein. The method comprises forming an array of touch sensors on a first side of the circuit board, in which portions of the circuit board located between three edges of the circuit board and a border of the array of touch sensors exclude traces; and forming first traces between respective second traces in a singular direction on a second side of the circuit board, in which the first traces are electrically coupled, using a first group of vias, to respective rows of the array of touch sensors, and the second traces are electrically coupled, using a second group of vias, to respective columns of the array of touch sensors.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: May 30, 2023
    Assignee: SENSEL, INC.
    Inventor: Ilya Daniel Rosenberg
  • Patent number: 11657757
    Abstract: A method for driving a display panel and a display apparatus are provided. The display panel includes a display region including a fingerprint recognition region and includes subpixels located in the display region, and the subpixels include first subpixels located in the fingerprint recognition region and used as a light source for fingerprint recognition. In a first mode, the subpixels are scanned at a first frequency, and in the second mode, the subpixels are scanned at a second frequency. The second frequency is greater than the first frequency. The method includes: when the display panel is in the first mode, monitoring whether the display panel receives a fingerprint recognition requirement, and if yes, controlling the display panel to enter a trigger state; and when the display panel is in the trigger state, scanning the first subpixels at a frequency greater than the first frequency.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: May 23, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Qijun Yao, Xingyao Zhou, Shui He
  • Patent number: 11656707
    Abstract: A display device, includes: a display unit that includes a first substrate, a second substrate facing the first substrate, and a sealant combining the first and second substrates with each other, the first substrate including an active area that displays an image and a peripheral area adjacent to the active area; and an input detection unit on the second substrate, wherein the input detection unit includes: a sensing electrode on the second substrate and corresponding to the active area; a sensing pad section on the second substrate and corresponding to the peripheral area, the sensing pad section including a plurality of sensing pads electrically connected to the sensing electrode; and a pattern section on the second substrate and corresponding to the peripheral area, the pattern section overlapping the sealant and including a plurality of conductive patterns in a floating state.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: May 23, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wonho You, Do-Hoon Kim
  • Patent number: 11656728
    Abstract: Some embodiments include fabricating a narrow border of a projected capacitive (PCAP) touchscreen. Some embodiments include a vertical electrode on a cover glass coupled to a first set of traces within the narrow border, and printing a first insulating black mask (BM) layer on the cover glass, that includes a first opening above an electrode terminus of the vertical electrode. Some embodiments further include printing a portion of a conductive black via (BV) in the first opening, coupling the conductive BV to the electrode terminus and a first silver trace of the first set of silver traces. Some embodiments include combining the cover glass with a sensor glass, where the first set of silver traces substantially overlaps a second set of silver traces of the sensor glass within the narrow border, where the overlapped sets of silver traces are separated by a shield layer.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: May 23, 2023
    Assignee: ELO TOUCH SOLUTIONS, INC.
    Inventors: Zhijun Lu, Xin Gu, Jun Ma
  • 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: 11656708
    Abstract: Touch responsive displays that may be integrated into a wide variety of non-transparent, non-glass surfaces to provide on-demand human computer interfaces that blend with the environment, i.e., remain invisible unless activated, effectively adding digital user interfaces (UI) to non-technology products and surfaces. The interactive display devices are frameless assemblies of a sensor layer, a light layer, and a support layer housing a microcontroller, wherein the device is configured to be positioned beneath a non-transparent surface layer with the sensor layer arranged below the surface layer.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: May 23, 2023
    Assignee: TOUCHWOOD LABS, INC.
    Inventors: Matthew Dworman, Gaurav Asthana
  • Patent number: 11651750
    Abstract: Disclosed is a foldable electronic device comprising: a foldable housing which includes a first housing and a second housing; a first display which is disposed at a first surface of the foldable housing, can be folded according to folding operations of the first housing and the second housing, and includes an exposure region exposed to the outside in a folded state; a second display which is disposed in at least a portion of a second surface of the first housing, positioned opposite to the first surface; a sensor which senses a folding angle of the foldable housing; and a processor which is operatively connected to the first display, the second display, and the sensor.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: May 16, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangheon Kim, Jongwu Baek, Seungnyun Kim, Woocheol Jung, Younghak Oh, Munhwi Kim, Junwon Jung, Kyuok Choi
  • Patent number: 11650689
    Abstract: A touch display device, a driving circuit, and a driving method are provided. An image defect which occurs when display driving and touch driving are simultaneously executed can be reduced by performing control such that a voltage level of a touch electrode driving signal (TDS) varies in a section other than a high-level period (Pon) of an ON-clock signal (ON_CLK) and/or a high-level period (Poff) of an OFF-clock signal (OFF_CLK).
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 16, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: SungChul Kim, HoonBae Kim, SunYeop Kim, Seongkyu Kang
  • Patent number: 11650691
    Abstract: A touch driving circuit and a touch display device are disclosed. A plurality of channel switches for driving touch electrodes disposed in areas disposed symmetrically to each other may be simultaneously turned on to perform touch sensing in a state in which a plurality of touch lines electrically connected to the plurality of channel switches are short-circuited to each other. Accordingly, touch sensing may be performed using touch data in which a load deviation due to the touch lines according to areas in which the touch electrodes are disposed is reduced, thereby improving the performance of the touch sensing.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: May 16, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sojung Jung, Youngwoo Jo
  • Patent number: 11651611
    Abstract: A mobile device including a processor, a memory unit, a display device disposed on a first surface of the mobile device, and a fingerprint sensor disposed on a second surface of the mobile device, wherein the second surface is a curved surface having a curvature such that the fingerprint sensor is curved to match the curvature of the curved surface.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: May 16, 2023
    Assignee: InvenSense, Inc.
    Inventor: Julius Ming-Lin Tsai
  • Patent number: 11651612
    Abstract: A fingerprint sensing apparatus includes a plurality of fingerprint sensing electrodes, a plurality of data lines respectively sandwiched by a first capacitance-shielding wire and a second capacitance-shielding wire, a fingerprint sensing circuit including a driver circuit with a gain larger than zero or equal to zero. During fingerprint sensing, the fingerprint sensing circuit sends a capacitance-exciting signal to a selected fingerprint sensing electrode, receiving a fingerprint sensing signal from the selected fingerprint sensing electrode, processing the fingerprint sensing signal with the driver circuit into a capacitance-eliminating signal and applying the capacitance-eliminating signal to the first capacitance-shielding wire and the second capacitance-shielding wire respectively.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 16, 2023
    Assignee: SUPERC-TOUCH CORPORATION
    Inventors: Hsiang-Yu Lee, Shang Chin, Chia-Hsun Tu, Ping-Tsun Lin
  • 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: 11650695
    Abstract: A display device including: a display unit having a plurality of pixels; a plurality of touch electrodes disposed on the display unit; a touch line connected to a first end of each of the plurality of touch electrodes; a common voltage line spaced apart from the plurality of touch electrodes; and a plurality of switching elements connected between the common voltage line and a second end of each of the plurality of touch electrodes.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: May 16, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sang Hyun Lim
  • Patent number: 11649717
    Abstract: Wireless mobile devices are injected into a wellbore with a cement slurry, during the cementing of casing, to monitor and evaluate cement sheath parameters. Passive, wireless sensors are utilized to not only measure the elastic constitutive properties of the cement sheath such as compressive strength, but also parameters of the cement sheath environment, such as temperature, pressure, humidity, pH and gases present, to identify potential issues about the structural integrity of the cement sheath, and provide timely warnings to perform remedial actions.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 16, 2023
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Chinthaka Pasan Gooneratne, Bodong Li, Timothy Eric Moellendick
  • Patent number: 11642539
    Abstract: A wearable medical device is provided for monitoring the cardiac health of a patient, for example, for indications of cardiac anomalies, where the device includes ECG sensors in electrical contact with the patient's body, therapy electrodes for providing electrical therapy to the patient's heart, and a control unit having at least one touch control with force sensor disposed on its housing for contacting with a finger. Signals from the touch control may be analyzed to identify force application below a first force threshold and at or above a second force threshold below the first force threshold, and, responsive to detecting such application of force, user input may be registered. User inputs to the at least one touch control may be used to delay therapy by the therapy electrodes.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 9, 2023
    Assignee: ZOLL MEDICAL CORPORATION
    Inventors: John Clark, Mark Roberto