Including Impedance Detection Patents (Class 345/174)
  • Patent number: 11275476
    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: January 13, 2021
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyeong Nam Bang, Chang Ho Lee, Hye Yun Han, Young Bae Jung
  • Patent number: 11276782
    Abstract: A semiconductor device capable of miniaturization or high integration and manufacture of a semiconductor device are provided. The semiconductor device includes a first insulator; an oxide over the first insulator; a second insulator and first and second conductors over the oxide; a third conductor over the second insulator; a fourth conductor over the first conductor; a fifth conductor over the second conductor; a third insulator over the first insulator and the first and second conductors; a fourth insulator over the second and third insulators and the third conductor; and a fifth insulator over the fourth insulator. The first and second conductors are provided to face each other with the second insulator therebetween. The second insulator is provided along an inner wall of an opening provided in the third insulator, facing side surfaces of the first and second conductors, and a top surface of the oxide.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 15, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yoshinobu Asami
  • Patent number: 11275920
    Abstract: An elongated biometric device provides a slim solution for capturing biometric data, and may be placed on a portion of an electronic device having limited space, such as a side of the electronic device. The elongated biometric device may include a force sensor, which may be positioned within a housing of the electronic device and actuated through posts extending from the elongated biometric device through the housing to transfer an applied force to the force sensor.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: March 15, 2022
    Assignee: Apple Inc.
    Inventors: Daniel B. Sargent, Dale Setlak, Giovanni Gozzini, John Raff, Michael B Wittenberg, Richard H. Koch, Ron A. Hopkinson
  • Patent number: 11275462
    Abstract: The present disclosure relates to a touch display device, and more specifically, relates to a touch display device having a bottom emission structure. According to the touch display device, by disposing a touch electrode and a touch planarization layer between a substrate and a thin film transistor, a touch sensing function can be implemented without affecting the disposing of components for display driving. Further, by disposing a shielding electrode to which a constant voltage or a signal equal to a touch driving signal is applied between the touch electrode and a light emitting element, a noise of a touch sensing signal caused by display driving can be reduced and the performance of touch sensing performed together with the display driving can be improved.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 15, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: HwiDeuk Lee, YongChan Park, Taeyun Kim, Yangsik Lee
  • Patent number: 11275477
    Abstract: In an input device capable of reliably detecting, when an operator brings an operating body close to or into contact with an operation plane, absolute position information irrespective of a contact area size, third electrode arrays are disposed closer to the operation plane relative to second electrode arrays in a normal direction of the operation plane, the second electrode arrays have a portion protruding from the corresponding third electrode arrays when viewed in the normal direction, and assuming that a change amount of electrostatic capacitance between first and third electrode arrays occurred by an operation of the operating body is denoted by ?C1 and a change amount of electrostatic capacitance between the first and second electrode arrays occurred by an operation of the operating body is denoted by ?C2, a position of the operating body in the normal direction is calculated based on a ratio ?C1/?C2.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: March 15, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Junji Hashida, Toru Takahashi, Toru Sawada, Yoshifumi Masumoto, Shinichi Higuchi, Koji Tsukamoto, Tomoyuki Yamai, Akihiro Takeda, Sadakazu Shiga
  • Patent number: 11269447
    Abstract: A touch display device includes a controller, a source driver, several multiplexers, and several touch sensors. The source driver is configured to output several data signals. The multiplexers are coupled to the controller and the source driver, and are configured to transmit the plurality of data signals to an active area according to at least one enable period of a multiplexing signal. The touch sensors are coupled to the controller, and are configured to receive a touch signal outputted from the controller. The touch signal includes a touch pulse. A touch pulse starting-time interval and a touch pulse ending-time interval of the touch pulse are located in at least one disable period of the multiplexing signal, and the touch pulse and the at least one enable period partially overlap in time sequence.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 8, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chun-Chi Lai, Chia-Hsien Chu, Feng-Sheng Lin, Tsang-Hong Wang
  • Patent number: 11269435
    Abstract: A three-dimensional sensing panel includes a cover plate, a two-dimensional touch sensing module, a pressure sensing coating layer, and a light-transmitting electrode layer. The cover plate defines thereon a touch area and a peripheral area surrounding the touch area. The two-dimensional touch sensing module is disposed at the touch area. The pressure sensing coating layer is coated at a side of the two-dimensional touch sensing module away from the cover plate. The light-transmitting electrode layer is coated at a side of the pressure sensing coating layer away from the two-dimensional touch sensing module.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: March 8, 2022
    Assignee: TPK Advanced Solutions Inc.
    Inventors: Lien Hsin Lee, Yan Zhao, Jenchang Liu, Ren Hung Wang, Tai Shih Cheng, Jun Chen Zhong, Yuting Chan, Chu Chiang Lin
  • Patent number: 11269455
    Abstract: A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; identifying noise in the capacitance image data based on the positive capacitance variation data and the negative capacitance variation data; determining, based on the noise, an upper threshold and a lower threshold; generating compensated capacitance image data, based on the upper threshold and the lower threshold, to compensate for the noise in the capacitance image data; and processing the compensated capacitance image data to determine a proximal conditio
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: March 8, 2022
    Assignee: SigmaSense, LLC.
    Inventors: Kevin Joseph Derichs, Hans Howard Eilers, Daniel Keith Van Ostrand, Sarah Marie Derichs, Richard Stuart Seger, Jr., Michael Shawn Gray
  • Patent number: 11269466
    Abstract: The present disclosure discloses a touch panel, including an inductive electrode and a flexible circuit board, the inductive electrode including a first electrode axis and a second electrode axis intersecting each other, and the first electrode axis and the second electrode axis each including a plurality of touch electrodes and a plurality of signal electrodes; signal wires connected to the touch electrodes; and touch wires connected to the signal electrodes; the touch electrodes and the signal electrodes being arranged at intervals, and at least one touch electrode being arranged between two signal electrodes. With the technical solution, the present disclosure achieves a touch panel with a transparent and touch-enabled bezel.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: March 8, 2022
    Assignee: Beijing Zenithnano Technology Co., Ltd.
    Inventors: Youzhi She, Shudong Zhong
  • Patent number: 11269462
    Abstract: According to one embodiment, an electrostatic capacitance-type sensor-equipped display device includes a display panel with a display surface which displays an image. The sensor includes a plurality of detection electrodes disposed in a matrix, the detection electrodes being mutually electrically independently provided above the display surface and being configured to detect a variation in electrostatic capacitance, and a plurality of lead lines provided above the display surface, connected to the detection electrodes in a one-to-one correspondence, and formed of a metal.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: March 8, 2022
    Assignee: Japan Display Inc.
    Inventors: Koji Noguchi, Koji Ishizaki, Hayato Kurasawa
  • Patent number: 11269456
    Abstract: A capacitive touch screen display operates by: receiving a plurality of sensed signals indicating variations in mutual capacitance associated with a plurality of cross points formed by a plurality of electrodes; generating capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value; identifying a presence of water on the touch screen display based on the positive capacitance variation data, and the negative capacitance variation data; generating compensated capacitance image data to compensate for effects of the water on the touch screen display in the capacitance image data; and processing the compensated capacitance image data to determine a proximal condition of the touch screen display.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 8, 2022
    Assignee: SigmaSense, LLC.
    Inventors: Hans Howard Eilers, Kevin Joseph Derichs, Daniel Keith Van Ostrand, Sarah Marie Derichs, Richard Stuart Seger, Jr., Michael Shawn Gray
  • Patent number: 11269474
    Abstract: The present disclosure discloses a touch device, including a display region and a transmission region. The transmission region is arranged on at least one side around the display region. The touch device includes a first flexible film, a first low-resistance conductive layer, a first adhesive layer, a second flexible film, a second low-resistance conductive layer, a second adhesive layer, and a transparent cover plate sequentially from bottom to top. The first low-resistance conductive layer includes a first touch conductive layer and a first wire integrally formed. The second low-resistance conductive layer includes a second touch conductive layer and a second wire integrally formed. The first touch conductive layer and the second touch conductive layer correspond to the display region. The first wire and the second wire correspond to the transmission region.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: March 8, 2022
    Assignee: Beijing Zenithnano Technology Co., Ltd
    Inventors: Yuchun Zhang, Shudong Zhong, Mao Li
  • Patent number: 11271565
    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: January 13, 2020
    Date of Patent: March 8, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Yaohua Pan, Jun Zhang
  • Patent number: 11269463
    Abstract: An input device includes a touch panel having a plurality of transparent electrodes disposed side by side, a hover signal generation unit for generating a hover signal used to detect a height of an indicator located above a surface of the touch panel to input the hover signal to the plurality of electrodes, an XY position detection unit for detecting an X position and a Y position of the indicator based on a signal component that appears on each of the electrodes, and a height detection unit for detecting a height of the indicator based on a signal component that appears on each of the electrodes. The height detection unit performs a correction to the height of the indicator when the XY position of the indicator is within a peripheral portion of the touch panel.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: March 8, 2022
    Assignee: ALPINE ELECTRONICS, INC.
    Inventor: Kenji Shimatsu
  • Patent number: 11270625
    Abstract: The present application provides a display panel and a display device, wherein in the display panel, in a same display frame, a number of sub-pixels with a positive driving polarity and a bright display state is the same as a number of sub-pixels with a negative driving polarity and a bright display state, and a number of sub-pixels with a positive driving polarity and a dark display state is the same as a number of sub-pixels with a negative driving polarity and a dark display state, thereby alleviating the technical problems that the existing display panel cannot satisfy the user's pursuit of display quality.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: March 8, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yu Wu, Geng Wang
  • Patent number: 11269454
    Abstract: Structured noise from various aggressors can be suppressed to improve touch performance. A respective noise characteristic can be determined for each respective group of touch nodes (e.g., row, column) among multiple groups of touch nodes in a masked touch image. The respective noise characteristic can be removed from the corresponding respective group of touch nodes in the touch image. For example, a respective noise characteristic can be determined for each respective row and/or for each respective column in the masked touch image. The respective noise characteristic can be removed from the respective row and/or column in the unmasked touch image. In some examples, the determining and subtracting of the noise characteristic can be repeated iteratively within a window of time and/or until one or more noise criteria are met.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Judd E. Reed, Ari Y. Benbasat
  • Patent number: 11262872
    Abstract: A multi-modal sensor is disclosed that is able to detect and discriminate objects in the near-range range, mid-range and far-range. The sensor uses different sensing modalities that are adapted to cooperate and operate together depending upon the range of the object that is being detected. In an embodiment, infrared transmitters and infrared sensors are used, wherein the infrared transmitters transmit signals in the infrared range that frequency orthogonal with respect to each other.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 1, 2022
    Assignee: Tactual Labs Co.
    Inventors: Braon Moseley, Daniel Ironside
  • Patent number: 11263425
    Abstract: A detection apparatus is provided and includes detection electrodes; detection circuit configured to be coupled to detection electrodes to detect detection signals corresponding to changes in capacitance of detection electrodes; coupling circuit configured to cause detection electrodes to be a coupled state in which detection electrodes are coupled to detection circuit and non-coupled state in which detection electrodes are uncoupled from detection circuit; drive electrode arranged at a position adjacent to detection electrodes; conductor arranged between detection electrodes and drive electrode; and drive signal generation circuit configured to be coupled to drive electrode to supply drive signal to drive electrode; wherein detection electrodes are provided to one face of insulating substrate, and wherein height of drive electrode from the one face is greater than height of the detection electrodes from the one face.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: March 1, 2022
    Assignee: Japan Display Inc.
    Inventor: Toshinori Uehara
  • Patent number: 11264986
    Abstract: A method for capacitive touch sensing with high safety integrity includes measuring at least one of a first mutual-capacitance of an electrode pair comprising two of a first electrode, a second electrode and a third electrode, and a self-capacitance between the third electrode and a body biased to a fixed voltage. A contact of the body to a dielectric overlaying each of the first electrode, the second electrode and the third electrode is detected by comparing at least one of the first mutual-capacitance of the electrode pair to a first reference range, and the self-capacitance to a second reference range.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: March 1, 2022
    Assignee: NXP USA, Inc.
    Inventors: Petr Cholasta, Michael Rohleder, Anita Eveline Maliverney, Yiling Zhang
  • Patent number: 11262635
    Abstract: A magnet erased writing device or eWriter includes cholesteric liquid crystal material, in which a written image is erased using magnetically activated electronic circuitry. By eliminating the mechanical erase button of Prior Art eWriters, the eWriter can be designed with a display footprint that can cover nearly the entire face of the eWriter. An erasing magnet can be used with the device, which can be handheld as, for example, by being part of a stylus. With the erasing magnet separated from the device and the mechanical erase button being omitted, the eWriter avoids unintentional erasures, a drawback of Prior Art eWriters.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: March 1, 2022
    Assignee: Kent Displays, Inc.
    Inventors: Anthony Daniels, Todd Ernst, Nathan Hirt
  • Patent number: 11262874
    Abstract: A touch sensing device, applicable to an electric device including a touch member integrated with a housing, includes an inductor element spaced apart from an internal side surface of the touch member, a support member attached to an internal side surface of the housing or the touch member to support the inductor element disposed thereon, a substrate on which the inductor element is mounted, the substrate being disposed on the support member, and a circuit part connected to the inductor element and configured to detect a touch input and a touch-force input in response to different frequency change characteristics depending on the touch input and the touch-force input through the touch member.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 1, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joo Hyoung Lee, Joo Yul Ko
  • Patent number: 11256366
    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: November 30, 2020
    Date of Patent: February 22, 2022
    Assignee: Synaptics Incorporated
    Inventors: Jonathan Losh, Dipankar Talukdar
  • Patent number: 11256365
    Abstract: A touch controller includes a controller receiving a display timing signal and generating a touch sensing control signal synchronously with the display timing signal. The touch controller also includes a sensing circuit driving a touch sensing array in response to the touch sensing control signal in order to generate touch data corresponding to sensing signals provided by the touch sensing array. The sensing circuit provides a first driving signal having a first polarity to at least one driving channel of the touch sensing array during a first display frame period, and provides a second driving signal having a second polarity different from the first polarity during a second display frame period.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong-Gon Lee, Bum-Soo Kim, Sang-Uk Woo, Yoon-Kyung Choi
  • Patent number: 11256360
    Abstract: A display device of the disclosure includes a panel including pixels, and first sensors and second sensors overlapping the pixels, and a circuit board. The circuit board includes a first sensor pad electrically connected to a respective first sensor, a second sensor pad electrically connected to a respective second sensor, and a data pad electrically connected to respective pixels, a sensor driver, a first sensor line having one end connected to the first sensor pad and another end connected to the sensor driver, a second sensor line having one end connected to the second sensor pad and another end connected to the sensor driver, a data extension line having one end connected to the data pad, and a first decoupling capacitor connected to the first sensor line disposed between the sensor driver and a first point where the first sensor line and the data extension line cross.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: February 22, 2022
    Inventors: Hyo Chui Lee, In Soo Wang
  • Patent number: 11256351
    Abstract: In a display system, a display device includes multiple common electrodes used for both image display and touch detection. Within a frame period of the display device, a display period for which the display device displays an image and a touch detection period for which a touch detection circuit performs touch detection are alternately arranged. The display device includes a first touch detection region and multiple second touch detection regions, configured by dividing multiple common electrodes into multiple groups. During multiple touch detection periods, the touch detection circuit performs touch detection in the same first touch detection region and in a second touch detection region different for each touch detection period.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: February 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Atsushi Hirai
  • Patent number: 11256355
    Abstract: Embodiments of the disclosure relate to a touch display device and display panel, and more specifically, to a touch display device and display panel, in which the poor brightness issue may be addressed by evenly arranging the touch lines and contact holes in the touch electrodes positioned in the outer edge of the touch display panel.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: February 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: SungGu Kang
  • Patent number: 11257452
    Abstract: The present disclosure relates to a touch display device, a touch sensing circuit, and a driving method. Further, the present disclosure relates to a touch display device, a touch sensing circuit, and a driving method, in which multiple touch electrodes are grouped into multiple touch electrode groups, and sensing is concurrently performed for each of the multiple touch electrode groups, so that excellent touch sensitivity and a fast touch sensing speed are allowed.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 22, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: SungChul Kim, CheolSe Kim, HoonBae Kim, SunYeop Kim, Seongkyu Kang
  • Patent number: 11256348
    Abstract: The present disclosure provides a display panel include one or more pressure sensing units, the one or more pressure sensing units being configured to sense a pressure input on the display panel. Each of the pressure sensing units includes a first upper electrode, a first lower electrode disposed opposite to the first upper electrode, and a piezoelectric material layer between the first upper electrode and the first lower electrode. There is further provided a display device comprising the display panel described above.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 22, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhixiang Fang, Jian He
  • Patent number: 11256369
    Abstract: A method for preventing a false touch of a screen includes: sending a bandpass ultrasonic signal; receiving a reflected ultrasonic signal; calculating frequency domain information of the reflected ultrasonic signal; calculating at least one ultrasonic feature vector according to the frequency domain information, the ultrasonic feature vector being used to characterize movement state information of the mobile terminal approaching or moving away from an obstacle; constructing a feature vector set comprising the at least one ultrasonic feature vector; determining whether a condition for preventing a false touch is met according to the feature vector set; disabling a touch function of the touch screen in a case where the condition for preventing the false touch is met.
    Type: Grant
    Filed: August 22, 2020
    Date of Patent: February 22, 2022
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Kai Wang, Runyu Shi, Wei Lu, Chenchen Bao, Xudong Yin
  • Patent number: 11256363
    Abstract: A sensor system includes a receiver circuit including a receiver electrode, a transmitter electrode, and control logic. The control logic is configured to determine that an amplitude of a transmitter electrode output signal is greater than an amplitude threshold. Based on this determination, the control logic is configured to whether a frequency of the transmitter electrode output signal is within an allowed frequency range. Based on a determination that the frequency of the transmitter electrode output signal is not within the allowed frequency range, the control logic is configured to determine that noise is present in the system.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: February 22, 2022
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventor: Attma Sharma
  • Patent number: 11251394
    Abstract: An organic light emitting display can include light emitting elements disposed on a substrate; an encapsulation unit disposed on the light emitting elements; touch sensors disposed on the encapsulation unit; first conductive lines connected to the touch sensors; second conductive lines connected to the first conductive lines; and at least one insulating film formed of at least one of an inorganic film or an organic film and disposed between the first and second conductive lines.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 15, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Jae-Young Oh
  • Patent number: 11249602
    Abstract: A pen detection system is provided which does not require an integrated circuit dedicated to a large display panel. A pen detection system 1 includes an integrated circuit 3a and an integrated circuit 3b. The integrated circuit 3a is connected to a first partial column electrode group 2xGa to acquire a first column level distribution indicating a level distribution of a pen signal in the first partial column electrode group 2xGa and is connected to a first partial row electrode group 2yGa to acquire a first row level distribution indicating a level distribution of the pen signal in the first partial row electrode group 2yGa.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: February 15, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Tomohiro Kagami
  • Patent number: 11249600
    Abstract: A display device according to the present invention includes a touch panel, a dielectric sheet, a frame, and a display panel. The touch panel has a touch sensor portion in the middle and a first electrode in an inner peripheral portion. Further, the dielectric sheet is closely adhered the back surface of the touch panel in its front surface. The frame has an opening in the central portion thereof and a second electrode in a marginal portion that is closely adhered the back surface of the dielectric sheet. The display panel has a display surface to display a screen image and the display surface is closely adhered the back surface of the dielectric sheet in the opening of the frame. The first electrode and the second electrode constitute a pressure-sensitive sensor that has a function to detect a pressing force when an operation element touches the front surface of the touch panel.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: February 15, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masafumi Agari, Tae Orita, Takeshi Ono, Toshiaki Fujino, Kozo Ishida, Seiichiro Mori
  • Patent number: 11249574
    Abstract: A display device includes pixel electrodes, a first driver disposed outside a display area in which the pixel electrodes are arrayed, a touch sensor electrode which is disposed within the display area and to which a drive signal is applied from the first driver, a first wire which is disposed outside the display area and to which the drive signal is applied from the first driver, and a second wire disposed outside the display area. A predetermined electric potential is applied to the second wire, and the first wire is disposed between the second wire and the display area.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: February 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Isao Ogasawara
  • Patent number: 11249593
    Abstract: One embodiment among embodiments described in the description discloses an electronic device including an electromagnetic induction panel associated with collection of pen data based on a pen input, a memory to store at least one correction table configured to correct pen data made at mutually different positions based on parts of the electromagnetic induction panel, and a processor electrically connected to the electromagnetic induction panel and the memory and configured to correct the pen data through a specified correction table of the at least one correction table based on a connection state or an arrangement state between the electronic device and an accessory including at least a part of a magnet member or a metal member that is able to exert an electrical influence or a magnetic influence on the electromagnetic induction panel. Various embodiments are possible.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: February 15, 2022
    Inventors: Hyong Sog Oh, Choel Hwi Kwon, Hyun Suk Choi
  • Patent number: 11249611
    Abstract: A touch panel, a touch display panel, and a display device are provided, and relate to the field of display technology. The touch panel may include a substrate, and a first touch electrode pattern and a second touch electrode pattern that are stacked on the substrate. The first touch electrode pattern includes a plurality of first touch traces and the second touch electrode pattern includes a plurality of second touch traces. A width of at least one end portion of at least one touch trace is less than a width of a part other than the end portion.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: February 15, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Zhang, Taofeng Xie, Qin Zeng, Xianhua Wang, Qidi Wu
  • Patent number: 11249577
    Abstract: A touchpad and a sending unit for the same are provided. The sensing unit has two electrode layers and a separation assembly. The separation assembly has multiple deformation rooms and multiple gap assemblies. The deformation rooms communicate with the gap assemblies. The gap assemblies communicate with the exterior environment. When the upper electrode layer is pressed and deforms in the deformation rooms, the air in the deformation rooms is discharged through the gap assemblies so that the air does not accumulate in the remaining unstressed spaces to avoid resistance and to maintain the normal operation of the force sensing function.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: February 15, 2022
    Assignee: ELAN MICROELECTRONICS CORPORATION
    Inventors: Yung-Lieh Chien, Shu-Wei Huang, Fang-Jin Lin, Tung-Ming Yang, Tien-Wen Pao
  • Patent number: 11243645
    Abstract: A display device is provided. The display device includes a display unit which includes a display area and a first hole formed in the display area; and an input sensing unit which is disposed on the display unit and comprises a second hole corresponding to the first hole, the input sensing unit further including: a base layer which includes: an adjacent area disposed adjacent to the second hole and a sensing area overlapping the display area and surrounding the adjacent area; detection electrodes which are disposed on the sensing area; and a first connection wiring which is disposed on the adjacent area, the first connection wire electrically connecting at least two detection electrodes spaced apart by the second hole, disposed at respective sides of the second hole.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Bum Kim, Hyung Chul Kim, Jung Mok Park, Young Sik Kim, Young Seok Yoo
  • Patent number: 11243624
    Abstract: An input sensing unit including a plurality of first electrodes, each of which including a plurality of first main patterns and a plurality of connection patterns disposed between the first main patterns to connect two first main patterns adjacent to each other, a plurality of second electrodes each of which including a plurality of second main patterns and a plurality of connection patterns disposed between the second main patterns to connect two second main patterns adjacent to each other, and a plurality of third electrodes receiving an electrical signal that is different from that received by the second electrode. Each of the third electrodes includes a plurality of third main patterns spaced apart from the second sensing patterns in a plan view and a plurality of third connection patterns disposed between the third main patterns to connect two third main patterns adjacent to each other and spaced apart from the first connection patterns in a plan view.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kiwook Kim, Kwang-Min Kim, Yangwan Kim, Jisu Na
  • Patent number: 11244989
    Abstract: A display device includes a base layer, a circuit layer, a light emitting element layer, and a thin film encapsulation layer. The base layer includes a display area and a non-display area. The circuit layer includes a plurality of insulating layers, at least one of which has an opening. The light emitting element layer includes a light emitting area overlapping the display area, a valley area overlapping the opening and having a concave shape, and a peak area overlapping the non-display area and being on the circuit layer. The thin film encapsulation layer includes an organic encapsulation layer that covers the light emitting area, the valley area, and at least a portion of the peak area.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seungwoo Seo, Seungjae Lee, Ji Hwang Lee, Sohra Han
  • Patent number: 11243638
    Abstract: A touch assembly with a near-field communication (NFC) circuit comprises a substrate, a touch circuit, an NFC circuit, and an antenna. The substrate has a surface layer and a radiation pattern layer. The surface layer has an antenna installation area. The antenna installation area has a center position. The radiation pattern layer is made of conductive material. An orthogonal projection of the radiation pattern layer on the surface layer overlaps with the antenna installation area. The orthogonal projection extends between an outer edge of the surface layer and the center position. The touch circuit is disposed on the substrate and outside of the antenna installation area. The NFC circuit is disposed on the substrate. There is a safe distance between the NFC circuit and the touch circuit. The antenna is disposed on the substrate. The antenna is located in the antenna installation area and above the radiation pattern layer.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: February 8, 2022
    Assignee: SMART APPROACH CO., LTD.
    Inventors: Cheng-Tang Lin, Hsin-Lung Lin
  • Patent number: 11243647
    Abstract: A touch sensor includes a substrate, an insulating layer, a sensor, and sensing lines. The substrate includes: a sensing region, and a peripheral region at a periphery of the sensing region. The insulating layer is on the substrate. The insulating layer includes contact holes. The sensor is on the substrate and overlaps the sensing region. The sensing lines are on the substrate and overlap the peripheral region. The sensing lines are connected to the sensor. Each of the sensing lines is formed as a multilayer structure. The multilayer structure includes a first electrically conductive layer on the substrate, and a second electrically conductive layer connected to the first electrically conductive layer via a contact hole among the contact holes. Widths of the sensing lines are different from one another.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su Yul Seo, Yu Jin Choi, Yeon Ju Kang, Ki Hyuk Kim, Gyeong Nam Bang
  • Patent number: 11243630
    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: September 17, 2020
    Date of Patent: February 8, 2022
    Assignee: LG DISPLAY CO., LTD
    Inventors: Hyangmyoung Gwon, Minjoo Kim, Sungjin Kim, Jaehyung Jang
  • Patent number: 11237662
    Abstract: Embodiments of the present disclosure provide a touch display substrate, a method for manufacturing the same, a driving method thereof, and a display device thereof. The touch display substrate includes a substrate, a plurality of electrode blocks, independent of each other and arranged in an array, disposed on the substrate, and a switching device disposed between the adjacent electrode blocks. The electrode block is configured to receive a common voltage during a display period and receive a touch scan signal during a touch period. The switching device is configured to electrically connect the adjacent electrode blocks during the display period and electrically isolate the adjacent electrode blocks from each other during the touch period.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: February 1, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liqing Liao, Hongmin Li, Zhifu Dong
  • Patent number: 11237653
    Abstract: An e-pen includes e-pen sensor electrodes (including a first and a second e-pen sensor electrode) and drive-sense circuits (DSCs) (including a first DSC and a second DSC. The first DSC drives a first e-pen signal having a first frequency via a first single line coupling to the first e-pen sensor electrode and simultaneously senses, via the first single line, the first e-pen signal. Based on e-pen/touch sensor device interaction, the first e-pen signal is coupled into at least one touch sensor electrode of the touch sensor device. The first DSC process the first e-pen signal to generate a first digital signal representative of a first electrical characteristic of the first e-pen sensor electrode. Similarly, the second DSC drives a second e-pen signal having a second frequency via a second single line coupling to the second e-pen sensor electrode and simultaneously senses, via the second single line, the second e-pen signal.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: February 1, 2022
    Assignee: SIGMASENSE, LLC.
    Inventors: Patrick Troy Gray, Gerald Dale Morrison, Daniel Keith Van Ostrand, Richard Stuart Seger, Jr., Michael Shawn Gray, Kevin Joseph Derichs
  • Patent number: 11237670
    Abstract: A touch panel, a method for manufacturing a touch panel, and a display device are provided. The touch panel includes a first transparent electrically conductive layer and a second transparent electrically conductive layer stacked on each other. The first transparent electrically conductive layer includes a first gap region and a first transparent electrically conductive film region. The first gap region and the first transparent electrically conductive film region form a touch sensing electrode pattern. The second transparent electrically conductive layer includes a second gap region and a second transparent electrically conductive film region. The second transparent electrically conductive film region and the second gap region form a shielding pattern. A position of the second transparent electrically conductive film region on the second transparent electrically conductive layer corresponds to a position of the first gap region on the first transparent electrically conductive layer.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: February 1, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Yin, Qingpu Wang, Zhi Zhang, Bisheng Li, Zhenzhong Fang
  • Patent number: 11237663
    Abstract: A touch panel includes a first touch electrode and a second touch electrode disposed on a substrate; a common electrode that receives a common voltage that is a reference for a voltage transmitted to the first and second touch electrodes; a first touch wiring and a second touch wiring respectively connected to the first touch electrode and the second touch electrode; and a touch driver that transmits a driving signal to the first and second touch wirings.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Seungho Baek
  • Patent number: 11237667
    Abstract: An apparatus for combined capacitance and pressure sensing is described. The apparatus includes a multiplexer (75) having a plurality of inputs (76) and an output (F), a touch panel (29), and a front end module (3). The touch panel includes a layer structure (5; FIG. 15) comprising one or more layers, each extending perpendicularly to a thickness direction, the one or more layers including a layer of piezoelectric material (10; FIG. 15), the layer structure having first (6) and second (7; FIG. 15) opposite faces, and the layer(s) arranged between the first and second faces such that the thickness direction of each layer is perpendicular to the first and second faces. The touch panel also includes a plurality of first electrodes (8) disposed on the first face, each first electrode connected to a respective input of the multiplexer. The touch panel also includes at least one second electrode (9) disposed on the second face.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: February 1, 2022
    Assignee: Cambridge Touch Technologies Ltd.
    Inventors: Arokia Nathan, Jackson Chi-Sun Lai, Corbin Church, Suk-Bae Cha
  • Patent number: 11237677
    Abstract: A display device which can achieve compatibility between the simplicity of the configuration or control of electronic equipment and the maintaining of its high operability includes: a display panel and a touch panel arranged on a front surface side of the display panel as viewed from a viewer. The touch panel includes one transparent substrate and a conductive pattern disposed on the substrate. A plurality of detection areas in each of which a touch position can be detected are provided in the touch panel. A non-detection area in which the touch position is not detected is provided between two detection areas next to each other.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 1, 2022
    Assignee: Japan Display Inc.
    Inventors: Masaki Kubo, Shigeyuki Nishitani
  • Patent number: 11237669
    Abstract: The invention relates to a method and apparatus for improving the measurement of the timing of touches of a touch screen. In an embodiment a method of determining a time at which a user touched a touch screen of an electronic device comprises obtaining (101) a touch signal generated by the touch screen for a first time period, the touch signal indicating when the user touched the touch screen during the first time period; obtaining (103) a sensor signal generated by a first sensor for at least the first time period, the sensor signal comprising a first signal component corresponding to a measurement by the first sensor of the user making contact with the touch screen; using (105) the touch signal to identify a time window in the sensor signal containing the first signal component; and processing (107) the windowed sensor signal to determine the timing of the first signal component in the sensor signal.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: February 1, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Erik Gosuinus Petrus Schuijers, Bjorn Nicolaas Servatius Vlaskamp