Patents Examined by Vinh T Lam
  • Patent number: 11067723
    Abstract: An optical touch film includes a sensor layer, an optical film, an adhesive layer, a separation layer, and a refractive insulating layer. The sensor layer includes touch electrodes forming a sensor. The adhesive layer is between the sensor layer and the optical film. The separation layer is on a surface of the sensor layer. The separation layer includes an organic polymer material. The refractive insulating layer is on the touch electrodes. A refractive index of the refractive insulating layer is greater than a refractive index of the separation layer.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: July 20, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: In Nam Lee, Young Seok Yoo, Kang Won Lee, Hyun Jae Lee, Seung Hwan Chung
  • Patent number: 11061512
    Abstract: A projector includes an image projection section projecting an image on a projection surface, an imager capturing a surface image to produce a captured image, a controller causing the image projection section to project a calibration image and causing the imager to capture the projected calibration image, a computing section calculating conversion information for converting a position in the captured image into a position in the projection image based on the captured image as a result of the calibration image imaging, and a detector searching the projection image and detecting a pointing position at which a light emitting pen pointing at the projection surface has pointed based on the conversion information and captured image as a result of the light emitting pen imaging, and the computing section calculates a projection distance between the projector and projection surface based on the captured image as a result of the calibration image imaging.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: July 13, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hiroki Senshiki
  • Patent number: 11061519
    Abstract: A pseudo-piezoelectric d33 vibration device includes transistors and receivers electrically connected to the transistors. Each transistor controls a corresponding one of the receivers to receive a second vibration wave, generated after an object reflects a first vibration wave, and to generate a sensing signal. Each receiver has a first electrode, a second electrode and a nano-gap, which is created between the first and second electrodes after a semiconductor-metal compound is formed. A display integrating the pseudo-piezoelectric d33 vibration device is also provided.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: July 13, 2021
    Assignee: MAY SUN TECHNOLOGY CO., LTD.
    Inventor: Bruce C. S. Chou
  • Patent number: 11054899
    Abstract: A method for three dimensional visualization and manipulation of downhole data. A measured signal is received a downhole environment and a three dimensional virtualization of the measured signal is generated. A stereographic viewer displays the three dimensional virtualization of the measured signal. The three dimensional virtualization can be manipulated in response to an input from a user, thereby creating a manipulated three dimensional virtualization. The stereographic viewer can display the manipulated three dimensional virtualization.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 6, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Ilker R. Capoglu, Burkay Donderici
  • Patent number: 11056081
    Abstract: A display panel and a display device are provided. The display panel includes at least one first display area, and a second display area located at a periphery of the first display area. The first display area includes a plurality of first repeating sub-areas that can be repeatedly arranged in both a first direction and a second direction. The second display area includes a plurality of second repeating sub-areas that has a same size as the first repeating sub-areas. A number of the pixels disposed within the first repeating sub-areas is less than a number of the pixels disposed within the second repeating sub-areas.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 6, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yong Zhao, Zuomin Liao, Tao Chen
  • Patent number: 11036080
    Abstract: An LED backlight system and an LED control circuit are provided. The LED backlight system includes an LED string and the LED control circuit. The LED control circuit includes an LED driver, a switching circuit and an abnormality detecting circuit. The LED driver is configured to generate a control signal. The switching circuit controls a current flowing through the LED string in response to the control signal. The abnormality detecting circuit is configured to detect a voltage or the current of a first end of the LED string. When the voltage or the current of the first end of the LED string is less than or equal to a threshold value, the abnormality detecting circuit turns off the switching circuit, and the abnormality detecting circuit detects an impedance of the first end of the LED string to determine an abnormal state of the LED string.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 15, 2021
    Assignee: Power Forest Technology Corporation
    Inventor: Chia-Hsien Liu
  • Patent number: 11016625
    Abstract: A display panel and deformation sensing method thereof, and a display device are provided. The display panel includes a substrate, and a deformation sensing unit on the substrate; the deformation sensing unit includes a first electrode, a second electrode, and a third electrode, the second electrode and the third electrode being configured to form a first capacitor, the first electrode and the second electrode being configured to form a second capacitor, the first electrode and the third electrode being configured to form a third capacitor, and the first capacitor, the second capacitor, and the third capacitor being configured to determine a shape-state of the display panel.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: May 25, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jinqian Wang, Tieshi Wang
  • Patent number: 11011555
    Abstract: Methods of fabricating integrated active-matrix light emitting pixel array based displays are provided. The methods include: forming an array of light emitting elements on a first side of a substrate, forming an array of active-matrix light emitting pixels using the array of light emitting elements, each pixel including at least one light emitting element and at least one non-volatile memory coupled to the at least one light-emitting element, forming conductive interconnects penetrating through the substrate from a second side of the substrate to the first side, and forming one or more integrated circuits on the second side, the one or more integrated circuits being conductively coupled to the array of active-matrix light-emitting pixels through the conductive interconnects. The methods can further include forming an array of active-matrix multi-color display pixels by using the array of active-matrix light emitting pixels.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: May 18, 2021
    Inventor: Shaoher Pan
  • Patent number: 11011126
    Abstract: A display device includes a display panel, a gate driver that supplies scan signals to a first to nth scan lines, a data driver that supplies gradation voltage signals corresponding to a video data signal to a plurality of data lines, and a display controller that supplies the video data signal to the data driver. The display controller supplies a first to nth pieces of display data to the data driver in units of display data pairs each including a kth piece of display data and an (n+1?k)th piece of display data. The gate driver supplies the scan signals to the plurality of scan lines. Each of the scan signals has different pulse widths depending on distance from the data driver to the respective first to nth scan lines. The data driver supplies the gradation voltage signals to the plurality of data lines on the basis of supply of the display data pairs from the display controller.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 18, 2021
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventors: Koji Higuchi, Kunihiro Harayama
  • Patent number: 11008117
    Abstract: Systems and methods for enabling a user (e.g., a pilot) to input information to a computer at a flight deck display station using both a split keyboard and a touch screen. The split keyboard provides space in front of the touch-screen display device, which space is available for a pilot to use as an arm or wrist rest while manually interacting with the touch screen. For example, the split keyboard may be mounted to a shelf having an empty central or middle portion in front of the touch-screen display device. The split keyboard concept entails placing one keypad on one side and another keypad on the other side of the empty middle shelf portion, both keypads being communicatively to the keyboard controller of the computer that controls the display device. The open space between the keypads may also be used for meal trays or tablet computers.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: May 18, 2021
    Assignee: The Boeing Company
    Inventors: Sandra C. Dam, Christopher D. Haus, Alireza Majd, John Wiedemann, Alessandro E. Galli, Brandon R. Boekelman
  • Patent number: 11006101
    Abstract: Examples disclosed herein relate to viewing device adjustment based on eye accommodation in relation to a display. In one implementation, a computing device determines accommodation information related to a viewer's focus on an image rendered on a display. The computing device may cause an optical component associated with a viewing device to adjust based on the determined accommodation.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 11, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Will Allen, Nelson L Chang, Irwin Sobel
  • Patent number: 11004330
    Abstract: A method carried out in a system including an active stylus and a sensor controller includes: transmitting, by the sensor controller, an uplink signal including a first partial signal and a second partial signal; and receiving, by the active stylus, the uplink signal. The transmitting includes transmitting the first partial signal by direct spreading using a first spread code and transmitting the second partial signal by direct spreading using a second spread code, wherein the second spread code is different from the first spread code and has a chip time length that is identical to a chip time length of the first spread code. The receiving includes, while the active stylus is synchronized with the uplink signal, detecting the first partial signal using the first spread code and subsequently detecting the second partial signal using the second spread code.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 11, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: Sadao Yamamoto, Hideyuki Hara
  • Patent number: 10991308
    Abstract: A display panel and a display device are provided. The display panel includes a plurality of pixel regions, each pixel region including a pixel island and a transparent region located on a periphery of the pixel island. The pixel island includes K active display area, a distance between adjacent ones of the K active display area in the pixel island is less than a distance between pixel islands of adjacent ones of the plurality of pixel regions. Each of the plurality of pixel regions includes K sub-regions with approximately equal areas, K pixel driving circuits are respectively disposed in the K sub-regions, the K pixel driving circuits are configured to respectively drive the K active display areas, and the K is an integer greater than or equal to 2.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 27, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Yang, Minghua Xuan, Can Zhang, Xiandong Meng, Xiaochuan Chen, Wenqing Zhao
  • Patent number: 10984699
    Abstract: A drive circuit for a liquid crystal panel includes a voltage output device, a resistive voltage dividing circuit, and a low-pass filter. The voltage output device has a pulse-signal output port, a first port and a second port. The pulse-signal output port outputs a pulse signal, which is modulated by pulse width modulation. The first port and the second port switch an output between a DC power supply voltage and a ground voltage. The resistive voltage dividing circuit is connected to the first port and the second port. The low-pass filter has an input and an output. The input of the low-pass filter connected to a voltage output node of the resistive voltage dividing circuit and the pulse-signal output port. The output of the low-pass filter connected to a terminal, which outputs a voltage to the liquid crystal panel.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: April 20, 2021
    Assignee: DENSO CORPORATION
    Inventor: Shunji Yamauchi
  • Patent number: 10971082
    Abstract: Data drivers and organic light emitting display devices having data drivers are provided in which a number of amplifiers for driving a display panel is reduced. A data driver includes an analog-to-digital converter, first and second amplifier circuits, a first switch coupled to an output of the first amplifier circuit, and a second switch and a third switch coupled to an output of the second amplifier circuit. The first switch is configured to selectively couple the output of the first amplifier circuit to a first data line and to second data line of a display panel. The second switch is configured to selectively couple the output of the second amplifier circuit to the second data line and to the analog-to-digital converter. The third switch is configured to selectively couple the output of the second amplifier circuit to a sensing line of the display panel.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: April 6, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Taewook Kim, Jungyoon Yi, Byungjae Lee
  • Patent number: 10971034
    Abstract: A method of automatically partitioning a refreshable braille display based on presence of pertinent ancillary alphanumeric content. In an unpartitioned configuration, every braille cell of the refreshable braille display is used to output the primary alphanumeric content. When the refreshable braille display outputs a segment of the primary alphanumeric content having associated ancillary alphanumeric content, such as a footnote or a comment, the braille display is automatically partitioned into a first partition and a second partition. The braille cells of the first partition are allocated for outputting the primary alphanumeric content, while the braille cells of the second partition are allocated for outputting the ancillary alphanumeric content.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: April 6, 2021
    Assignee: Freedom Scientific, Inc.
    Inventors: James T. Datray, Joseph Kelton Stephen, Glen Gordon
  • Patent number: 10964911
    Abstract: A thin-film encapsulation structure of an active-matrix organic light-emitting, diode (AMOLED) is provided, and a touch electrode layer is disposed thereon. The thin-film encapsulation structure includes a first ceramic layer, an organic layer, and a second ceramic layer. The second ceramic layer has a first film layer and a second film layer; a side end of the second film layer is contracted inward so that a recessed first step portion is defined at the side end of the second film layer and a side end of the first film layer. The second ceramic layer is changed into a design of a multi-layer stacked structure, and a recessed step portion is formed at the side ends of the upper and lower layers. Therefore, the traces can be placed in a larger space and resistant to line breakage, thereby ensuring the yield and product performance.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: March 30, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xuwen Cao
  • Patent number: 10963107
    Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: March 30, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: SangHyuck Bae, BuYeol Lee, SeungRok Shin, CheolSe Kim, DeukSu Lee, Hyunwoo Jang, Jaeseung Kim, YoungGyu Kim, Hyunsuk Cho
  • Patent number: 10964767
    Abstract: This organic-EL display apparatus comprises an organic-EL display panel including: a substrate that is provided with pixel drive circuits to drive respective pixels arranged in a matrix along each of a first direction and a second direction, and organic light-emitting elements being provided to each of the pixels and connected to any one of the pixel drive circuits. The organic-EL display panel comprises a signal output circuit to supply a signal to each of the pixel drive circuits arranged in a line along the first direction or the second direction. The signal output circuit includes thin film transistors and is formed around a display region on a surface of the substrate. The thin film transistors include a semiconductor layer including a region to be a channel between a source electrode and a drain electrode. The semiconductor layer is formed of amorphous silicon.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 30, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Yukiya Nishioka, Katsuhiko Kishimoto
  • Patent number: 10950182
    Abstract: The present disclosure relates generally to systems and methods that may reduce a reduction in visual artifacts related to hysteresis of a light emitting diode (LED) electronic display. In one example, an electronic device may include a controller. The controller is may provide a signal to a pixel of a display of the electronic device while at least a portion of the display is turned off. The signal may include a first current and a second current. The first current may be designed to increase an ambient temperature corresponding to the pixel. The second current may be generated as part of an active panel conditioning operation. By applying the first current and the second current, hysteresis settling times from the pixel may improve, therefore improving speeds of sensing and compensation operations of the electronic device.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Junhua Tan, Kingsuk Brahma, Jie Won Ryu, Shengkui Gao, Shiping Shen, Majid Gharghi, Hyunwoo Nho, Injae Hwang, Kavinaath Murugan, Sun-Il Chang, Chin-Wei Lin, Hyunsoo Kim, Rui Zhang, Jesse Aaron Richmond, Yun Wang, Hung Sheng Lin, Alex H. Pai, Chaohao Wang, Wei H. Yao