Patents Examined by David Tung
  • Patent number: 11157113
    Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: October 26, 2021
    Assignee: Apple Inc.
    Inventors: Mark T. Winkler, Mehmet Mutlu, Omid Momtahan, Tong Chen, Wenrui Cai, Chau H. Nguyen, Giovanni Gozzini, Michael K. McCord, Orit A. Shamir, Prashanth S. Holenarsipur
  • Patent number: 11151943
    Abstract: A gate driver on array (GOA) circuit is provided. The GOA circuit is designed to form a GOA sharing unit by arranging adjacent two stage GOA units in a conventional GOA circuit. Anew GOA circuit enables single-stage GOA circuit to be shared every two stages of GOA output signals. The new GOA circuit can reduce a number of thin film transistors in the GOA circuit and reduce a wiring design, which helps to reduce a design space of the GOA circuit, realizes a narrow bezel design, simplifies the GOA circuit, and can reduce power consumption of the GOA circuit.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 19, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yan Xue, Baixiang Han
  • Patent number: 11106313
    Abstract: A capacitive sensor system for touch detection includes a sensor surface, a first sensor electrode, a second sensor electrode, and an evaluation device. The sensor electrodes are both situated on and border the sensor surface. The first sensor electrode has a first closed conductor loop and the second sensor electrode has a second closed conductor loop. The first closed conductor loop surrounds the second closed conductor loop without the closed conductor loops touching each other. Each sensor electrode generates a sensor signal that depends on a position of a touch of an object on the sensor surface relative to the closed conductor loop of the sensor electrode. The evaluation device detects the touch based on a comparison of a ratio value to a threshold value, wherein the ratio value is a ratio of (i) a difference and (ii) a sum of the sensor signals.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: August 31, 2021
    Assignee: KOSTAL Automobil Elektrik GmbH & Co. KG
    Inventors: Matthias Seifert, Christian Brueggemann
  • Patent number: 11107427
    Abstract: A driving method of a display panel and a display device are provided. The driving method includes adopting drive data of relatively high voltage and drive data of relatively low voltage respectively for driving any two adjacent pixels; in each of the rows, with adjacent three pixels as a repeater, a polarity arrangement drive adopted by the pixels in a first column is different from a polarity arrangement drive adopted by the pixels in other two columns, the polarity arrangement drive above is one of a first polarity arrangement drive and a second polarity arrangement drive; in each of the columns, the polarity arrangement drive of every two of the pixels is identical; the first polarity arrangement drive and the second polarity arrangement drive are alternately changed with two of the pixels as a repeater. The display device uses such a driving method.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 31, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bei Zhou Huang
  • Patent number: 11107428
    Abstract: A driving method for a display panel and a display device are provided. The driving method includes adopting drive data of relatively high voltage and drive data of relatively low voltage respectively for driving any two adjacent pixels; and with four columns of pixels as a repeater, adopting a first polarity arrangement drive for former two columns of adjacent pixels, and adopting a second polarity arrangement drive for the rest two columns of adjacent pixels; the first polarity arrangement drive is to perform positive polarity drive, negative polarity drive, negative polarity drive and positive polarity drive on four sub-pixels in the pixel respectively; and the second polarity arrangement drive is to perform negative polarity drive, positive polarity drive, positive polarity drive and negative polarity drive on four sub-pixels in the pixel respectively. The display device uses such a driving method.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 31, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bei Zhou Huang
  • Patent number: 11100882
    Abstract: In a display device that adopts an SSD scheme, a demultiplexer circuit has provided for each source bus line, a compensating transistor whose first conduction terminal is connected to the source bus line and whose second conducting terminal is maintained in a floating state. In such a configuration, for example, at the same timing as a connection control transistor changes from an on state to an off state due to a change from a high level to a low level of a control signal that is supplied to a control terminal of the connection control transistor, a control signal that is supplied to a control terminal of the compensating transistor changes from the low level to the high level.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: August 24, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Takeuchi, Akira Tagawa, Yasuaki Iwase, Jun Nishimura
  • Patent number: 11099381
    Abstract: A display apparatus communicably coupled with server arrangement. Display apparatus includes means for tracking user's gaze; means for tracking pose of display apparatus; light source; optical element; and processor. Processor is configured to: process gaze-tracking data; process pose-tracking data; send, to server arrangement, gaze information and apparatus information, server arrangement predicts gaze information and apparatus information, and processes input image to generate image based on predictions; receive, image, predicted gaze information, and predicted apparatus information; determine adjustment required in configuration of light source and optical element prior to displaying image; determine if portion of previous image is to be displayed during adjustment; if yes, display said portion during adjustment; if no, switch off or dim light source during adjustment; display image via light source after adjustment.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 24, 2021
    Assignee: Varjo Technologies Oy
    Inventors: Ari Antti Erik Peuhkurinen, Ville Ilmari Miettinen
  • Patent number: 11100884
    Abstract: This application discloses a booster circuit of a display panel, a boost control method and a display device. The booster circuit of the display panel includes: a potential boosting circuit, used for boosting a potential of an input signal to generate a drive signal; a current detection circuit, used for detecting a real-time current value of the drive signal and outputting a corresponding detection signal; and a main control circuit in control connection with the potential boosting circuit, the potential boosting circuit outputting the drive signal to an output end of the booster circuit, and the main control circuit controlling the booster circuit to stop outputting the drive signal when the detection signal output by the current detection circuit satisfies a preset condition.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: August 24, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bin Qiu
  • Patent number: 11100893
    Abstract: The present invention discloses an eye protection method and system for an intelligent terminal, which uses a light sensor to acquire ambient light, uses a distance sensor to acquire a distance between a user's eyes and a screen of the intelligent terminal, uses a camera to identify a user identity, and uses eye protection software to monitor display content and perform data analysis, thereby achieving automatic adjustment of screen brightness, automatic adjustment of screen color temperature, adjustment of display mode, automatic restriction of use time, switching to basic communication function, and so on. The present invention intelligently adjusts the eye protection threshold, improves the practicability and effectiveness of the eye protection method, and improves the experience effect of the user's eye protection function.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: August 24, 2021
    Assignee: Chinese Academy of Medical Sciences & Peking Union Medical College, Institute of Biomedical Engineering
    Inventors: Yingxin Li, He Huang, Huijuan Yin, Xiaoxi Dong
  • Patent number: 11100831
    Abstract: The image display apparatus generates a driving control signal for generating image light on the basis of an image signal, and allows an image projector to generate the image light to form a pixel on a screen in accordance with a modulation timing by performing modulation driving for a light source, and to generate the image light so as to scan the screen while a light emission direction of the image light changes by performing scan driving, allows a gaze-direction detector to detect a gaze direction of a user, and allows a projection-direction driver to change a projection direction of the image light in accordance with the gaze direction. In the first mode, the image display apparatus controls modulation driving and scan driving so that a configuration of a pixel region on the screen changes from a relatively high pixel density region to a relatively low pixel density region.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: August 24, 2021
    Assignee: MAXELL, LTD.
    Inventor: Toshiki Ishii
  • Patent number: 11092858
    Abstract: The invention discloses a pixel structure and a pixel unit. The pixel structure includes a main electrode; and a plurality of branch electrodes connected to the main electrode; wherein the branch electrode includes a first branch electrode and a second branch electrode, an acute intersecting angle between the first branch electrode and the main electrode is a first angle, and an acute intersecting angle between the second branch electrode and the main electrode is a second angle. The invention solves the whitening phenomenon which occurs in the side view by designing the acute intersecting angle between the branch electrode and the main electrode as the first angle and the second angle.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 17, 2021
    Assignee: XIANYANG CAIHONG OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Zhuo Li, Yuan-Liang Wu, Haiyan Kang
  • Patent number: 11094260
    Abstract: A pixel circuit, a display panel, a display device, and a method of driving a display device are provided. The pixel circuit includes a driving sub-circuit, a first data writing sub-circuit, a second data writing sub-circuit, and a storage sub-circuit. The first data writing sub-circuit is configured to write a first data voltage to a first terminal of the storage sub-circuit in a case of being turned on under control of a first data scanning signal; the second data writing sub-circuit is configured to write a second data voltage to a second terminal of the storage sub-circuit in a case of being turned on under control of a second data scanning signal; and the driving sub-circuit is configured to drive a light emitting element to emit light under control of the voltage at the first terminal of the storage sub-circuit.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: August 17, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Xiaochuan Chen, Hui Wang
  • Patent number: 11062668
    Abstract: An electro-optical device includes first and second signal lines extending in first and second directions respectively on a component substrate; a pixel area disposed at a portion corresponding to an intersection of the first and second signal lines; a signal output circuit disposed outside the pixel area and outputs a driving signal to the first signal line and including circuit blocks arranged next to one another, wherein an outer peripheral edge of the pixel area has a curved or bent portion facing the signal output circuit, a first circuit block included in the circuit blocks is arranged along the curved or bent portion, and a second circuit block included in the circuit blocks and adjacent to the first circuit block is arranged so as to be displaced in the first direction from the first circuit block, and a lead-out area where the first and second circuit blocks are connected.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Katsuya Anzai, Hideki Kawada, Hiroshi Matsuda, Yukitada Iwasaki
  • Patent number: 11037499
    Abstract: A display device includes a display part including an organic light emitting diode (OLED) connected to a pixel circuit connected to a scan line and a sensing scan line, a signal generator configured to generate at least one display output enable (OE) signal during an image display period; and generate at least one sensing OE signal during a sensing period; and a scan driver including a display scan signal terminal connected to the scan line and a sensing scan signal terminal connected to the sensing scan line, wherein the scan driver is configured to: generate a scan signal for turning on the switching transistor in response to the display OE signal during the image display period; and generate a sensing scan signal for turning on the sensing transistor in response to the sensing OE signal during the sensing period.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 15, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Jin Kim, Gyu Su Lee, Myung Ho Lee
  • Patent number: 11037503
    Abstract: Disclosed are a gate driving apparatus for a pixel array and a driving method therefor. The pixel array includes N gate lines. The gate driving apparatus includes: a plurality of gate drivers, wherein the N gate lines are divided into a plurality of groups, each group includes a plurality of gate lines, each gate driver corresponds to the plurality of groups on a one-to-one basis, and is used for generating a gate driving signal for the plurality of gate lines in the group corresponding thereto; and a driver control module which is used for generating a plurality of driver control signals corresponding to the plurality of gate drivers on a one-to-one basis, and state switching between any two driver control signals has at least a difference of first time, wherein under control of the driver control signals, the gate drivers are switched from first state to second state in sequence.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: June 15, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO.. LTD.
    Inventors: Lijun Xiao, Yihjen Hsu, Shuai Hou, Xu Lu, Fei Shang
  • Patent number: 11009988
    Abstract: A processing system including processing circuitry and sensor circuitry configured to obtain first resistance measurements of a plurality of sensor electrodes that compose a surface of an input device. The processing circuitry measures, in a first time interval, first values of electrical resistances of the electrodes. The processing circuitry calculates, from the first values, a first rate of change in the resistances, and measures, in a subsequent second time interval, second values of the electrical resistances. The processing circuitry calculates, from the second values, a second rate of change in the electrical resistances, as well as calculates, over the second time interval and based on the first rate of change, projected values of electrical resistances. The processing circuitry filters the projected values from the second values of the electrical resistances. The processing circuitry calculates, and reports, final values for the force over the second time interval using the filtered measurement.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 18, 2021
    Assignee: Synaptics Incorporated
    Inventor: Tom Vandermeijden
  • Patent number: 11009992
    Abstract: An active stylus includes a stylus electrode, receive circuitry, and transmit circuitry. The stylus electrode is configured to capacitively couple with one or more electrodes of a capacitance-based touch sensor of a touch-sensitive device. The receive circuitry is operatively coupled to the stylus electrode and configured to receive a synchronization waveform from the touch-sensitive device. The transmit circuitry is operatively coupled to the stylus electrode and configured to, upon receiving the synchronization waveform, transmit stylus information to the touch-sensitive device according to a communication frame including a first set of sub-frames and a second set of sub-frames. The transmit circuitry is configured to transmit a first waveform during the first set, if the active stylus is hovering, transmit the first waveform during the second set, and if the active stylus is not hovering, transmit one or more additional waveforms during the second set.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: May 18, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jonathan Westhues, Tianzhu Qiao
  • Patent number: 11004406
    Abstract: A dual LCD device includes a gray LCD, a color LCD stacked on the gray LCD, a backlight assembly disposed at the rear of the gray LCD, and a controller. The controller is configured to receive an input image data and then respectively output a gray cell pixel data and a color cell pixel data to the gray LCD and the color LCD based on a dual cell dimming algorithm. The dual cell dimming algorithm is configured to alleviate a moiré effect caused by light interference between the gray LCD and the color LCD. The dual cell dimming algorithm includes: calculating an initial gray cell pixel data based on the input image data; calculating the gray cell pixel data by spatially blurring the initial gray cell pixel data; and calculating the color cell pixel data by compensating the gray cell pixel data.
    Type: Grant
    Filed: January 5, 2020
    Date of Patent: May 11, 2021
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Tung-Ying Wu
  • Patent number: 11003273
    Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: May 11, 2021
    Assignee: Japan Display Inc.
    Inventors: Hiroyuki Abe, Yoshinori Aoki, Kazune Matsumura, Masateru Morimoto
  • Patent number: 10983687
    Abstract: A flexible display apparatus configured to sense deformation of the flexible display apparatus, control display of an object displayed on the flexible display apparatus based on the deformation, and execute operations based on the displayed object.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-kyu Seo, Hyun-jin Kim, Nipun Kumar, Jung-joo Sohn, Geun-ho Lee