Patents Examined by Carolyn R Edwards
  • Patent number: 10923031
    Abstract: A pixel unit circuit includes a light emitting element, a first end being connected to a low level input end; a storage capacitor sub-circuit, a first end being connected to a DC voltage input end; a driving transistor, a gate electrode being connected to a second end of the storage capacitor sub-circuit, and a first electrode being connected to a second end of the light emitting element; a light emitting control sub-circuit, a control end being connected to a light emitting control line, the first end being connected to a high-level input end, and the second end being connected to a second electrode of the driving transistor, and configured to control whether the second electrode of the driving transistor is connected to the high level input end; and a charge compensation control sub-circuit, connected to a gate line, a data line and the gate electrode of the driving transistor.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: February 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Xiaochuan Chen, Hui Wang, Yanming Wang, Pengcheng Lu, Wei Liu, Huijuan Wang, Minghua Xuan
  • Patent number: 10923029
    Abstract: A pixel circuit including a light-emitting element, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor and a storage capacitor is provided. The third transistor is coupled to the second transistor. The fourth transistor is coupled to the second transistor. The storage capacitor is coupled between the first transistor and the fourth transistor. The fifth transistor is coupled to the fourth transistor. The sixth transistor is coupled to the fourth transistor. The seventh transistor is coupled to the fourth transistor and the light-emitting element. The eighth transistor is coupled to the first transistor.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: February 16, 2021
    Assignee: Au Optronics Corporation
    Inventors: Yi-Chiung Chen, Mao-Hsun Cheng
  • Patent number: 10914640
    Abstract: Techniques are disclosed for calibrating display devices, such as head-mounted augmented reality (AR) devices. One technique includes obtaining, for each of a set of primary color light sources disposed in a unit, measurement points including chromaticity and luminance values as a function of temperature of the unit and drive currents of the primary color light sources. The technique further includes converting the measurement points to an XYZ color space to produce XYZ values. The technique further includes, for each of a set of target luminances and a set of discrete temperatures, calculating primary luminances for each of the primary color light sources, and interpolating or extrapolating the drive currents and the XYZ values for each of the primary luminances to obtain calculated currents. The technique further includes storing the calculated currents indexed by the target luminances and the discrete temperatures.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: February 9, 2021
    Assignee: Magic Leap, Inc.
    Inventor: Marshall Charles Capps
  • Patent number: 10916173
    Abstract: The disclosure relates to a method and apparatus for converting a grayscale, and a display device, where color coordinates of respective pixel elements are determined according to grayscales corresponding to red sub-pixels, green sub-pixels, and blue sub-pixels in the respective pixel elements in image data of a frame to be displayed, and then the distances between the color coordinates of the respective pixel elements, and color coordinates of a preset white pixel on the panel, in a CIE chroma graph are determined; and the maximum grayscales of white sub-pixels in the respective pixel elements are further determined according to the respective determined distances and a preset segmentation function.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: February 9, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Bin Dai, Yanhui Xi, Xiaomang Zhang, Yan Sun, Yue Li, Yuxin Bi, Yankai Gao
  • Patent number: 10901590
    Abstract: A method for providing a graphical user interface on a display of a device includes: displaying a photograph image on the display of the device; receiving a touch input made on the display; superimposedly displaying a plurality of control guides at a location corresponding to the touch input over the displayed photograph image in response to the touch input; receiving a drag input corresponding to one of the plurality of control guides displayed on the display; adjusting a display characteristic of the photograph image corresponding to the one of the plurality of control guides, in response to the drag input; and displaying the photograph image having the adjusted display characteristic on the display, wherein the display characteristic is a magnification of the photograph image.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hui Chul Yang, Nho Kyung Hong, Jin Young Jeon, Tae Young Kang, In Won Jong
  • Patent number: 10901550
    Abstract: A display touch scanning method, a non-volatile storage medium, a display touch scanning chip and a display apparatus are disclosed. The display touch scanning method including: dividing one frame of display scan into M display time periods to be sequentially executed, and dividing one frame of touch scan into N touch time periods to be sequentially executed; and performing the touch scan using different touch loads in at least two adjacent touch time periods, or performing the display scan using different display loads in at least two adjacent display time periods. The M display time periods and the N touch time periods are interlaced, and M and N are integers greater than or equal to 2.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 26, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Shaolei Zong, Jieqiong Wang, Jigang Sun
  • Patent number: 10901570
    Abstract: A method, computer program product, and a system where a processor(s) of a computing device identifies at least two displays coupled to the processor(s) to render visual objects to a user of the computing device, like a cursor, and processor(s) obtains instructions to render the cursor in various locations on the displays via an input device. The processor(s) obtain a display layout for the displays and resolutions of displays and generates an initial virtual desktop that includes physical real estate of the displays where the processor(s) renders visual objects. The processor(s) obtains a request and generates a simulacrum of the displays, in virtual space. The processor(s) displays, on a portion of the virtual desktop, the simulacrum. The processor(s) obtains, via the input device, a selection of a location on the simulacrum and automatically moves the cursor to a location on the virtual desktop that corresponds to the selected location.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: January 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Michael Bender, John F. Kelley, Todd P. Seager, Blaine H. Dolph
  • Patent number: 10901283
    Abstract: To suppress a malfunction of a circuit due to deterioration in a transistor. In a transistor which continuously outputs signals having certain levels (e.g., L-level signals) in a pixel or a circuit, the direction of current flowing through the transistor is changed (inverted). That is, by changing the level of voltage applied to a first terminal and a second terminal (terminals serving as a source and a drain) every given period, the source and the drain are switched every given period. Specifically, in a portion which successively outputs signals having certain levels (e.g., L-level signals) in a circuit including a transistor, L-level signals having a plurality of different potentials (L-level signals whose potentials are changed every given period) are used as the signals having certain levels.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: January 26, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 10888037
    Abstract: A system for increasing the temperature of a display element includes a heat source configured to perform a user experience function independent of generating heat. The system also includes a thermally conductive element that is coupled to the heat source and is positioned proximate to the display element, forming a thermally conductive path between the heat source and the display element. A method for increasing the temperature of a display element includes generating heat by operating a heat source to perform a user experience function independent of generating heat, and dispersing the heat from the heat source to the display element via a thermally conductive path formed by a thermally conductive element coupled to the heat source and positioned proximate to the display element.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 5, 2021
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Brian Joseph Toleno, Gavin D. Stanley, Douglas Lea Heirich, Tzu-Yuan Lin, Sridhar Canumalla
  • Patent number: 10866729
    Abstract: The disclosed technology is directed to a touch panel device used in an endoscope device. The touch panel device includes a display portion having a display panel and a touch panel formed thereto and configured to display an endoscope image on the display panel acquired by an endoscope having a bending portion. A processor is configured to control the bending portion so as to perform a bending operation when a user keeps performing a first operation on the touch panel in a first predetermined duration or more.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: December 15, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsuyoshi Furuhata
  • Patent number: 10866674
    Abstract: A display device includes: a display panel; a first force sensor disposed under the display panel; and a first waterproof member disposed under the display panel and disposed on an outer side of the first force sensor, wherein a height of the first waterproof member is larger than a height of the first force sensor.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: December 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Ki Hong, Tae Hee Lee, Sung Kook Park, So Hee Park, Hee Seomoon
  • Patent number: 10860125
    Abstract: Disclosed are a display panel and a display device which can sense a fingerprint. A photo-sensor is disposed within a sub-pixel, a voltage change of a pixel electrode according to a leakage current of the photo-sensor exposed to light is sensed, and a fingerprint is sensed, so that a fingerprint can be sensed in an active area of a display panel. Also, a voltage change of the pixel electrode is sensed using a common electrode without directly applying a driving voltage to the pixel electrode, so as to perform driving of the pixel electrode and light irradiation together, thereby enabling a reduction in a fingerprint sensing mode and detection of only the level of a leakage voltage during fingerprint sensing. Therefore, a sensing circuit can be efficiently configured, and sensing sensitivity can be improved.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: HongChul Kim
  • Patent number: 10860129
    Abstract: An electronic device comprises a base substrate changing a cross section area corresponding to an external force applied from outside and a sensor changing a cross section area corresponding to the external force applied from outside. The sensor comprises a first electrode disposed on the base substrate, a second electrode disposed on the base substrate, and a dielectric layer disposed between the first electrode and the second electrode. A thickness of the dielectric layer stays substantially the same when a cross sectional area of the base substrate changes.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: December 8, 2020
    Assignees: Samsung Display Co., Ltd., Research Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Jaeik Lim, Wonsang Park, Hyeyong Chu, Juhyun Kim, Nae-eung Lee, Byeong-ung Hwang
  • Patent number: 10847077
    Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 24, 2020
    Inventors: Kapil V. Sakariya, Tore Nauta, Hopil Bae, Henry C. Jen
  • Patent number: 10818234
    Abstract: A current sensing device and an organic light emitting display device including the same are disclosed. The current sensing device includes a sensing unit selectively connected to a pixel and a reference current source through a sensing line. The sensing unit includes a plurality of resistors connected to a first node and setting a divided voltage according to a pixel current input from the pixel and a reference current input from the reference current source, a first MOS transistor connected between the first node and a second node, a second MOS transistor diode-connected to the second node, and a comparator having an inverting input terminal connected to a third node, a non-inverting input terminal connected to a fourth node, comparing a reference voltage charged at the third node when the reference current is input and a pixel voltage charged at the fourth node when the pixel current is input, and outputting a comparison result.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 27, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Eunji Song, Kimin Son
  • Patent number: 10818226
    Abstract: Aspects of the present disclosure provide a pixel circuit, a method for driving the same, and a display apparatus. The pixel circuit comprises a display driving circuit. The display driving circuit comprises a reset sub-circuit, a writing sub-circuit, a driving sub-circuit, a light-emitting control sub-circuit, and a light-emitting device. The reset sub-circuit is configured to reset the driving sub-circuit. The writing sub-circuit is configured to write a data voltage into the driving sub-circuit. The light-emitting control sub-circuit is connected to the driving sub-circuit and an anode of the light-emitting device and is configured to provide driving current, through the driving sub-circuit, for causing the light-emitting device to emit light. The pixel circuit further comprises a detection circuit configured to collect incident light and output a collection result to the read signal line. One or more transistors are shared between the detection circuit and the display driving circuit.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 27, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Chunwei Wu, ChihJen Cheng, Pengpeng Wang, Wei Liu
  • Patent number: 10818212
    Abstract: The present application provides a display substrate and a method for driving the same, a display panel and a display apparatus. The display substrate includes pixel units, each of which includes a pixel electrode and a first transistor having a control electrode coupled to a gate line and a first electrode coupled to the pixel electrode. The display substrate further includes a second transistor coupled to a first pixel unit and a second pixel unit in a same column. The second transistor has a first electrode coupled to a second electrode of the first transistor of the first pixel unit and a second electrode of the first transistor of the second pixel unit, a control electrode coupled to a control line, and a second electrode coupled to a data line.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: October 27, 2020
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lu Bai, Yanna Xue, Zhiying Bao, Lei Mi
  • Patent number: 10809834
    Abstract: Embodiments of the present disclosure provide a touch display panel, a method of driving the touch display panel, and a display apparatus with the touch display panel. The touch display panel includes: a common electrode layer disposed in an array substrate or a color filter substrate, configured for displaying an image, and including: a plurality of first strip-shaped electrodes each serving as a first touch feedback electrode and one of a touch drive electrode and a touch sense electrode; and a plurality of second strip-shaped electrodes crossing the first strip-shaped electrodes, and each serving as a second touch feedback electrode; and a plurality of third strip-shaped electrodes disposed in the color filter substrate and each serving as the other of the touch drive electrode and the touch sense electrode. a An extending direction of the third strip-shaped electrodes crosses an extending direction of the first strip-shaped electrodes.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 20, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Chunwei Wu, Yingming Liu, Wei Liu, Pengpeng Wang, Yanling Han, Xueyou Cao
  • Patent number: 10810954
    Abstract: Disclosed are a driving method and a driving device for driving a display apparatus, as well as a display apparatus. The driving method includes: obtaining a first voltage driving signal and a second voltage driving signal of a sub-pixel of each of a plurality of pixels in an image; dividing each of all the sub pixels into two parts that are adjacent to each other with a stagger interval; and further dividing each of the parts into second luminescence signal values with the first luminescence signal values, where the second luminescence signal values and first luminescence signal values are adjacent to each other with a stagger interval, so as to control a display of the corresponding pixel.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 20, 2020
    Assignees: HKC Corporation Limited, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yu-Jen Chen
  • Patent number: 10802537
    Abstract: A display device includes: a stretchable display panel which displays an image at a display surface thereof; and an optical module which is disposed on a surface of the stretchable display panel opposite to the display surface thereof. The optical module is visible or non-visible from outside the stretchable display panel by expansion or contraction of the stretchable display panel.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi Joon Ahn, Sung Chul Kim, Jung Hun Noh