Patents Examined by Keith L Crawley
  • Patent number: 11480788
    Abstract: A light field display, having at least one laser emitter, an optical modulator for modulating light from the laser emitter with video information; a beam focus modulator; an array of beam scanning elements; an electrically controllable beam focus modulator; and at least one at least one waveguide having at least one transparent substrate, an input grating and an output grating for extracting light from the waveguide; and an eye tracker is provided.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: October 25, 2022
    Assignee: DigiLens Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
  • Patent number: 11482186
    Abstract: The application discloses a driving method and a driver circuit for a display panel, where the driving method includes the following steps: starting a source electrode driver circuit, outputting OV voltage, and simultaneously enabling a common line to output 0 V voltage or be disconnected; outputting, a preset initial voltage by the source electrode driver circuit, and simultaneously enabling the common line to output the identical initial voltage; after starting the source electrode driver circuit, transmitting a gray-scale voltage to the display panel; meanwhile, controlling a gamma circuit of the display panel to output a preset common voltage to the common line through a common voltage line.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: October 25, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Mancheng Zhou
  • Patent number: 11468865
    Abstract: Disclosed is an image display apparatus including a display panel having a plurality of pixels, and a controller configured to control the display panel, wherein the plurality of pixels includes luminance pixels including subpixels of multiple colors and color pixels including subpixels of multiple colors, and wherein the luminance pixels output light with luminance higher than luminance of the color pixels and the color pixels output light with color purity higher than color purity of the luminance pixels. Accordingly, a high luminance and high color-saturation image may be displayed with the image display apparatus including the luminance pixels and the color pixels.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: October 11, 2022
    Assignee: LG ELECTRONICS INC.
    Inventor: Kyungjin Kang
  • Patent number: 11450289
    Abstract: A display device includes a display panel including a gate line, a data line, a gate driver outputting a gate signal to the gate line, a data driver outputting a data voltage to the data line and a power voltage generator. The power voltage generator generates a gate-on voltage, a gate-off voltage, and a gate clock signal toggled between the gate-on voltage and the gate-off voltage, detects a current level of a gate clock current, cuts off power of the display device when a count of the gate clock current higher than or equal to a first current level is greater than or equal to a reference count, and cuts off the power of the display device when the gate clock current is higher than or equal to a second current level higher than the first current level in an initial frame after the display device is turned on.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: September 20, 2022
    Inventors: Gwangsoo Ahn, Jong Jae Lee, Sungsoo Choi
  • Patent number: 11436971
    Abstract: A display driving apparatus includes an output control circuit configured to, with one frame being divided into a plurality of blank periods by touch driving, output source signals corresponding to display data during the plurality of blank periods; and a polarity control circuit configured to receive pre-polarity control information for polarity inversion, and control polarities of the source signals outputted from the output control circuit, for polarity inversion by the unit of vertical 2 dots for one frame, wherein polarities for pre dummy lines and active data lines of odd-numbered and even-numbered blank periods are controlled by the pre-polarity control information.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: September 6, 2022
    Assignee: Silicon Works Co., Ltd
    Inventors: Yong Min Kim, Ju Ho Lee, Da Sol Won, Se Hyuk An
  • Patent number: 11436979
    Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Hwan Kim, Sang Moo Choi, Dae Hyun Kim, Soo Hee Oh, Dong Sun Lee
  • Patent number: 11424778
    Abstract: Aspects of the disclosure relate to a remote control which may include one or more buttons configured to provide input to the remote control upon being activated, a transmitter for transmitting data, a receiver for receiving data, a processor and memory storing computer executable instructions that, when executed, cause the two-way remote control to perform a method for configuring repeat transmission behavior of one or more of the buttons of the two-way remote control. Further, the receiver may be configured to receive data from a device configured to be controlled by the remote control and the data may include instructions for configuring the repeat transmission behavior of the one or more buttons of the two-way remote control. Additionally, the two-way remote control may configure the repeat transmission behavior of the one or more buttons of the two-way remote control based on the data received from the device.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 23, 2022
    Assignee: TIVO CORPORATION
    Inventor: Ross Gilson
  • Patent number: 11402945
    Abstract: A touch sensing device includes a touch panel and a touch sensing controller. The touch panel includes driving electrodes and sensing electrodes. The touch sensing controller provides driving electrodes with driving signals having different frequencies from each other, respectively, and performs a fast Fourier transform (FFT) processing on the sensing signals sensed at each of the sensing electrodes to determine whether or not a touch is generated based on a variation amount between frequency magnitude of the sensing signal and frequency magnitude of the driving signal. The touch sensing controller performs a convolution operation of mixing the driving signal or the sensing signal and a mixing signal having a predetermined frequency, and separates the mixing signal from the sensing signal on which the convolution operation is performed to determine whether or not a touch is generated by reconstructing an original driving signal.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 2, 2022
    Inventor: Seung-Hee Han
  • Patent number: 11372487
    Abstract: A display device with an integrated touch screen including a display panel including electrodes divided into a plurality of block type groups and a plurality of data lines; a display driver IC configured to apply a common voltage to the electrodes when a driving mode of the panel is a display driving mode, sequentially apply a touch scan signal to each block type group when the driving mode of the panel is a touch driving mode, and apply a data signal to the data lines associated with a corresponding block type group when the touch scan signal is applied to the corresponding block type group; and a touch IC configured to generate the touch scan signal and apply the touch scan signal to the display driver IC.
    Type: Grant
    Filed: December 26, 2020
    Date of Patent: June 28, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Junghan Lee, Sungchul Kim
  • Patent number: 11347346
    Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: May 31, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Takeshi Koike, Hideyuki Hara
  • Patent number: 11348519
    Abstract: A display device includes pixels, and a power converter configured to receive a first power voltage and an external input voltage and provide a gamma voltage to a first output terminal. The power converter includes a target power voltage generator circuit configured to generate a target power voltage, a first gamma voltage generator circuit configured to generate a first gamma voltage, a second gamma voltage generator circuit configured to generate a second gamma voltage, a first gap controller configured to generate the second gamma voltage based on the first power voltage, a reference target power voltage, and a reference gamma voltage during a period in which a display mode, and a first selector configured to selectively output the first gamma voltage or the second gamma voltage according to the display mode.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yang Uk Nam
  • Patent number: 11294503
    Abstract: An image jaggedness filter is disclosed that can be used to detect the presence of ungrounded objects such as water droplets or coins, and delay periodic baseline adjustments until these objects are no longer present. To do otherwise could produce inaccurate normalized baseline sensor output values. The application of a global baseline offset is also disclosed to quickly modify the sensor offset values to account for conditions such as rapid temperature changes. Background pixels not part of any touch regions can be used to detect changes to no-touch sensor output values and globally modify the sensor offset values accordingly. The use of motion dominance ratios and axis domination confidence values is also disclosed to improve the accuracy of locking onto dominant motion components as part of gesture recognition.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 5, 2022
    Assignee: Apple Inc.
    Inventor: Wayne Carl Westerman
  • Patent number: 11257432
    Abstract: A display panel, a display device, and a driving method of the display panel are provided. The display panel includes a plurality of pixel units arranged in an array and data lines and sensing lines connected to the pixel units, and each of the plurality of pixel units includes a plurality of sub-pixels; all sub-pixels in a same column of pixel units are connected to a same data line, each column of pixel units is respectively connected to two of the sensing lines, and any two adjacent columns of pixel units share one of the sensing line.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: February 22, 2022
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Meng Li, Zhidong Yuan
  • Patent number: 11257414
    Abstract: A display driver comprises: a first grayscale line; output circuitry configured to receive a first grayscale voltage from the first grayscale line and perform digital-analog conversion on a pixel data to output a source output voltage corresponding to the pixel data, the digital-analog conversion being based on the first grayscale voltage; and first gamma assist circuitry comprising a first holding node to hold the first grayscale voltage received from the first grayscale line and configured to drive the first grayscale line based on a first voltage between the first holding node and the first grayscale line.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: February 22, 2022
    Assignee: Synaptics Incorporated
    Inventors: Yutaka Saeki, Taisuke Koshino, Yoshinori Ura
  • Patent number: 11256356
    Abstract: A display device can include a substrate including a plurality of sub-pixels; a plurality of light emitting elements on the sub-pixels of the substrate; an encapsulation unit on the light emitting elements, and including a first inorganic encapsulation layer, a second inorganic encapsulation layer on the first inorganic layer and an organic encapsulation layer between the first inorganic encapsulation layer and the second inorganic encapsulation layer; a plurality of first touch electrodes arranged in a first direction; a plurality of second touch electrodes arranged in a second direction intersecting the first direction; a plurality of color filters on the encapsulation unit; a first black layer arranged between the color filters overlapping the touch electrodes; and a second black layer arranged on a different plane from the first black layer and arranged between the color filters not overlapping the touch electrodes.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: February 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Eun-Hye Lee
  • Patent number: 11238774
    Abstract: A method of displaying an image and an image display device are disclosed. The method is implemented by calculating a total current value of subpixels of an image to be displayed, and comparing the total current value of the subpixels with a total current threshold, thereby to output a gain factor for adjusting brightness of an image to be displayed, so that an original subpixel dataset can be adjusted according to the gain factor, enabling power consumption to be correspondingly limited at the time when an image is displayed to meet a high brightness requirement.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: February 1, 2022
    Assignee: Shenzhen China Star Optoelectronies Semiconductor Display Technology Co., Ltd.
    Inventors: Yuchao Zeng, Zhenling Wang
  • Patent number: 11232757
    Abstract: Disclosed are a backlight control method, a backlight control device and a computer-readable storage medium. The backlight control method includes the following steps: acquiring each pixel of each area in an image; calculating a first backlight value based on the pixel, threshold-limiting the first backlight value, and obtaining a second backlight value subjected to threshold-limiting and a third backlight value without threshold-limiting; and sending the second backlight value to a backlight control circuit, performing backlight compensation on the image based on the third backlight value, and sending the image after backlight compensation to a liquid crystal display screen. The backlight control method calculates a backlight value to perform backlight compensation on the image, and adjusts the liquid crystal cells of the liquid crystal display screen, thereby improving the contrast and ensuring the distortion of the image, and the algorithm is simple.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: January 25, 2022
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventor: Yilin Lin
  • Patent number: 11181737
    Abstract: A HUD device that allows an occupant of a moving body to view a virtual image by projecting an image on a display medium includes a display item information acquisition unit that acquires display item information showing position and display content of display item, a travel information acquisition unit that acquires travel information indicating position of the moving body at predetermined time intervals, and a state information acquisition unit that acquires state information indicating state of the moving body, and specifies at display timings display position on the basis of position indicated by display item information and position indicated by travel information acquired last.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 23, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kosuke Kubota, Ken'ichi Kasazumi, Masahito Ogata, Toshiya Mori
  • Patent number: 11175773
    Abstract: An electronic display assembly includes a display layer for displaying an image, a projected capacitive touch panel with touch input areas, each of which are independently operable and configured to receive touch input from a user. Input/output devices are electrically connected with the display layer touch panel. Software instructions, when executed, configure one or more processors to automatically begin utilizing a remaining operable input/output device if one of said input/output devices is rendered inoperable.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: November 16, 2021
    Assignee: Mercury Mission Systems, LLC
    Inventor: Ken Mahdi
  • Patent number: 11171195
    Abstract: A display device includes a substrate. The display unit is disposed on the substrate and includes a pixel circuit and a display element electrically connected to the pixel circuit. A driving circuit is disposed outside of the display unit. The driving circuit includes a thin film transistor. An inorganic insulating layer is disposed on the driving circuit. A power supply line is disposed on the inorganic insulating layer, overlaps the driving circuit, and is connected to a common electrode of the display element. An encapsulation substrate is disposed on the power supply line and faces the substrate. A sealing material is interposed between the substrate and the encapsulation substrate and overlaps the driving circuit.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 9, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongwook Kim, Wonkyu Kwak, Sunja Kwon, Seho Kim, Hansung Bae