Patents Examined by Sanjiv D Patel
  • Patent number: 11592937
    Abstract: A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: February 28, 2023
    Assignee: Synaptics Incorporated
    Inventors: Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Sung-Sool Lee
  • Patent number: 11592946
    Abstract: A capacitive gap force sensor includes a first electrode, a second electrode spaced apart from the first electrode, a first layer of dielectric material positioned between the first electrode and the second electrode, and a second layer of conductive material positioned between the first layer and the second electrode. The first layer has a first compression resistance less than a second compression resistance of the second layer. An effective capacitive sensing gap is defined between the first electrode and the second layer. The first layer is configured to compress or deform and alter the effective capacitive sensing gap when a force is received at the first electrode or the second electrode.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: February 28, 2023
    Assignee: Apple Inc.
    Inventors: Daniel J. Bechstein, Nahid Harjee, Travis N. Owens
  • Patent number: 11592929
    Abstract: In some examples, a touch screen includes resistors between the touch electrodes and routing traces. In some examples, the resistors can include a transparent conductive material included in the touch electrodes of the touch screen. The resistors can be located in a border region of the touch screen that can surround an active area of the touch screen that can include the touch electrodes and display pixels of the touch screen, for example. In some examples, the resistors included in the touch screen can have different resistances from each other and the same outer dimensions as one another. The resistors can reduce the variation in resistance from channel to channel in the touch screen, which can improve touch screen performance, for example.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: February 28, 2023
    Assignee: Apple Inc.
    Inventors: Zhou Lu, Isaac Wing-Tak Chan, Justin Zachary Wu, Rangarajan Krishnan, Qingbo Guo, Chao Zhang
  • Patent number: 11586323
    Abstract: The present disclosure relates to a touch circuit and a touch sensing method. A touch circuit may include a driving circuit configured to transmit a driving signal to a touch electrode, a sensing circuit configured to sense a change in capacitance generated in the touch electrode, and a touch control circuit configured to control a polarity of the driving signal transmitted by the driving circuit. The polarity of the driving signal controlled by the touch control circuit may be determined based on a location of the touch electrode. Touch sensitivity can be improved by differently controlling a polarity of a driving signal transmitted to an adjacent touch electrode.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: February 21, 2023
    Assignee: LX Semicon Co., Ltd.
    Inventors: Jae Hwan Lee, Mun Seok Kang, Jeong Kwon Nam, Kyu Tae Lee, Hyun Soo Chung, Jin Yoon Jang, Hee Ra Yun, Yeon Ju Yu
  • Patent number: 11586350
    Abstract: A cursor controlling method includes: A starting position on which a touch signal triggered by an object on the touch panel is detected, and a starting coordinate of the starting position is calculated; a cursor is display at a first coordinate on a display screen corresponding to the starting coordinate. A first vector of the object moving from the starting position to a first steering position on the touch panel is detected. The cursor is moved along a first moving vector corresponding to the first vector, with a first speed on the display screen, until the object is stopped on a first steering position of the touch panel, to make the cursor ended up at a first virtual position having a first virtual coordinate. The cursor is shifted from the first virtual coordinate to a second coordinate on the display screen and corresponding to the first steering position.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: February 21, 2023
    Assignee: BenQ Corporation
    Inventor: Chin-Jui Chi
  • Patent number: 11586313
    Abstract: A display device includes a first display area including a first pixel area; a second display area including a second pixel area and a transmissive area; a signal line, a common electrode, and a touch electrode that are disposed in the second display area. The common electrode includes an opening overlapping the transmissive area, and the common electrode is disposed between the signal line and the touch electrode to overlap the signal line.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Ho Jeong, Myoung-Ho Kwon, Ho Seok Son, Jin Bo Shim
  • Patent number: 11579717
    Abstract: A touch display device and a method for driving the same is disclosed. The present disclosure provides a touch display device including a display panel including sub-pixels, a touch sensor including a touch electrode formed electrically in common with an electrode of a light-emitting diode included in the sub-pixels, and a touch driver configured to sense the touch sensor, wherein the electrode of the light-emitting diode serves as the touch electrode for a turn-off period of an emission control transistor for controlling emission of the light-emitting diode.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: February 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Yang Sik Lee, Sang Hyuck Bae
  • Patent number: 11574953
    Abstract: A light emitting diode (LED) display panel is provided. The LED display panel includes a printed circuit board (PCB), a flexible substrate disposed on the PCB, and a pixel array. The flexible substrate has a plurality of holes. The pixel array is formed by a first matrix circuit disposed on the flexible substrate, a second matrix circuit disposed on the PCB, and a plurality of LEDs disposed on the PCB, collectively defining a plurality of pixels. Each of the pixels comprises a corresponding one of the LEDs and pixel circuits formed by the first matrix circuit and the second matrix circuit. A projection of each of the LEDs correspondingly overlaps with a projection of one of the holes on the flexible substrate along an extending direction of the holes. A mosaic LED display panel may be formed by multiple LED display panel butted or tiled together.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: February 7, 2023
    Assignee: A.U. VISTA, INC.
    Inventors: Fang-Chen Luo, Jenn-Jia Su, Willem den Boer, Shih-Hsing Hung
  • Patent number: 11567620
    Abstract: A touch module includes a substrate, a first horizontal touch electrode, a second horizontal touch electrode, a first jumper, and a first vertical touch electrode. The first horizontal touch electrode and the second horizontal touch electrode are disposed on the substrate at intervals along a first direction. The first jumper is connected to the first horizontal touch electrode and the second horizontal touch electrode, and has a first main portion and at least two first extending portions, in which the first main portion is between the two first extending portions in the first direction. The two first extending portions are respectively disposed corresponding to the first horizontal touch electrode and the second horizontal touch electrode. The first vertical touch electrode is disposed on the substrate, located between the first horizontal touch electrode and the second horizontal touch electrode in the first direction, and is electrically insulated from the first jumper.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: January 31, 2023
    Assignee: TPK Advanced Solutions Inc.
    Inventors: Kuo Lung Fang, Yamei Chen, Qibin Liu, Chiajui Lin, Deng Wu, Ruibin Yang, Peiqin Xu, Chun-An Wei, Jun-Rong Chen, You-Zhi She, Yating Hsu, Baolin Liu, Yongjin Wu
  • Patent number: 11567615
    Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, detection electrodes provided to surround a display area where an image is displayed, and a common electrode provided over an entire surface of the display area. The common electrode includes a first lead wiring line that extends to a peripheral area around the display area, along a boundary part between a first detection electrode, which is one of the detection electrodes, and a second detection electrode adjacent to the first detection electrode. A capacitance formed between the first lead wiring line and the first detection electrode is substantially equal to a capacitance formed between the first lead wiring line and the second detection electrode.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: January 31, 2023
    Assignee: Japan Display Inc.
    Inventors: Akihiko Fujisawa, Kaoru Ito, Daichi Abe
  • Patent number: 11567597
    Abstract: A display device can include a display panel having a plurality of data lines, a plurality of gate lines and a plurality of subpixels are arrayed; a data driver configured to supply a video data signal including a first signal segment and a second signal segment maintaining a predetermined voltage difference to each of the plurality of data lines, and output readout data in response to signal sensing through each of the plurality of data lines to which the video data signal is supplied; and a touch controller configured to detect a touch based on the readout data, wherein each of the plurality of subpixels includes: an emitting device; a driving transistor; a first transistor; and a storage capacitor connected between a first node and a second node, and including a first plate and a second plate.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: January 31, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jaehun Jun, Hyunkyu Park
  • Patent number: 11550403
    Abstract: A modular keyboard includes a typewriter keys section; a function keys section; a keyboard shortcuts section; a numeric keypad; a cursor control and system command keys section; and a keyboard cable. The typewriter keys section includes first contacts on the back electrically connected to the function keys section, second contacts on the left side electrically connected to the keyboard shortcuts section, third contacts on the front end electrically connected to a hand rest board, fourth contacts on the right side electrically connected to the numeric keypad, and fifth contacts on the rear end electrically connected to the keyboard cable. The numeric keypad includes contacts on the right side electrically connected to the cursor control and system command keys section. The components can be detached prior to carrying same.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: January 10, 2023
    Assignee: Shenzhen Ajazz Tongchuang Electronic Technology Co., Ltd.
    Inventors: Feng Lin, Hao Jiang
  • Patent number: 11550436
    Abstract: A touch panel includes a detection region that has a non-rectangular periphery shape, and a wiring region that surrounds the periphery of the detection region. In an alternating arrangement portion, of the periphery of the detection region, in which ends of first electrodes and ends of second electrodes are alternately positioned, first ends of the first electrodes and first wirings are electrically connected and second ends of the second electrodes face shield electrodes, or first ends of the second electrodes and second wirings are electrically connected and second ends of the first electrodes face the shield electrodes.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 10, 2023
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Yukihiro Ito, Yuki Ito
  • Patent number: 11545089
    Abstract: A pixel driving circuit, a display device and an electronic device are provided. The pixel driving circuit includes: a first sub-pixel driving circuit, a second sub-pixel driving circuit, a third sub-pixel driving circuit, and a fourth sub-pixel driving circuit sequentially arranged in a first direction; a detection line; a first power line extending in the second direction; and a second power line extending in the second direction, wherein one of the first power line and the second power line is provided on a side of the second sub-pixel driving circuit away from the third sub-pixel driving circuit, and the other of the first power line and the second power line is provided on a side of the third sub-pixel driving circuit away from the second sub-pixel driving circuit.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 3, 2023
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Meng Li, Yongqian Li, Chen Xu, Dacheng Zhang, Jingquan Wang, Shi Sun
  • Patent number: 11543916
    Abstract: A driver circuit configured to drive a display panel to perform a display operation and a touch sensing operation is provided. The driver circuit includes a touch and display driver integration (TDDI) circuit and an external circuit. The TDDI circuit is configured to drive the display panel to perform the display operation and the touch sensing operation during a display period and a touch sensing period, respectively. The TDDI circuit outputs a reference signal. The external circuit is disposed outside of the TDDI circuit. The external circuit is configured to output a first output voltage and a second output voltage on the basis of the reference signal from the TDDI circuit. The first output voltage is larger than the second output voltage.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: January 3, 2023
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventors: Pei Yao Chang, Yaw-Guang Chang
  • Patent number: 11537226
    Abstract: A touch display panel having a display unit including a plurality of pixels, an encapsulation unit disposed on the display unit, a touch sensor unit including a plurality of touch sensors disposed on the encapsulation unit, a color filter layer disposed on the touch sensor unit, the color filter layer including a color filter and a black matrix, a touch routing line and a touch pad connected to each of the touch sensors, a crack prevention layer disposed in a bending area between the touch routing line and the touch pad, a touch link line configured to interconnect the touch routing line and the touch pad via the lower part of the crack prevention layer in the bending area, and a touch passivation layer disposed on each of the touch sensors and the touch link line.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: December 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin-Bok Lee, Jung-Ho Bang, Seong-Joo Lee
  • Patent number: 11538410
    Abstract: A pixel circuit, a driving method thereof and a light emitting device, and relates to the technical field of display. The pixel circuit comprises driving sub-circuit comprising a control terminal, first terminal and a second terminal, driving sub-circuit being configured to control driving signal flowing through the first terminal and second terminal according to signal of control terminal; first capacitor comprising first pole and second pole coupled to control terminal of driving sub-circuit; first data writing sub-circuit configured to write first initialization signal to first pole of first capacitor in response to first scanning signal, write first data signal into driving sub-circuit in response to first scanning signal, so that signal of control signal of driving sub-circuit changes with first data signal; second data writing sub-circuit configured to write second data signal to first pole of first capacitor in response to second scanning signal.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: December 27, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Dongni Liu, Minghua Xuan, Li Xiao, Haoliang Zheng, Liang Chen, Jiao Zhao, Seungwoo Han, Hao Chen
  • Patent number: 11521538
    Abstract: A display device includes a display area including a plurality of pixels; a low-grayscale dithering controller selecting a dither grayscale according to an input grayscale of input image data that is in a low grayscale range below a threshold grayscale, and generating dithered input image data by performing a dithering operation on the input image data of the low grayscale range based on the dither grayscale; and a display driver driving the plurality of pixels based on the dithered input image data.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: December 6, 2022
    Inventors: A Ra Jo, Kang Hee Lee
  • Patent number: 11521533
    Abstract: A direct current-to-direct current (“DC-DC”) converter includes: a first converter which outputs a first power voltage in a normal mode or a power saving mode based on a inductor current generated therein, where the first converter operates in a first driving manner in the normal mode, and operates in a second driving manner in the power saving mode; a second converter which outputs a second power voltage based on a inductor current generated therein, where the second converter operates in a third driving manner in the power saving mode, and a magnitude of the second power voltage in the power saving mode is different from that in the normal mode; and a mode selector which supplies a mode control signal to the first and second converters, where the first and second converters are driven in the normal mode or the power saving mode based on the mode control signal.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Chun Park, Yoon Young Lee
  • Patent number: 11513629
    Abstract: A display device includes a plurality of pixels. A gate line extends in a first direction and is connected to each of the plurality of pixels. A common electrode is disposed above the gate line and extends across the plurality of pixels. A touch sensing unit is disposed above the common electrode and includes a plurality of driving electrodes and a plurality of sensing electrodes. A display driver drives the plurality of pixels. A first fan-out line is connected to the display driver. A touch driver drives the driving electrodes and the sensing electrodes. A second fan-out line is connected to the touch driver. A first switching element selectively connects one of the first fan-out line and the second fan-out line to the gate line.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Jae Sung, Young Chan Kim