Patents Examined by Chanh D. Nguyen
  • Patent number: 11100876
    Abstract: The present application discloses a thin-film transistor-based latch circuit for latching a data voltage in a pixel circuit. The latch circuit includes an input terminal; a first node; an inverse node; a positive-feedback terminal coupled to the input terminal; a first control sub-circuit coupled respectively to the input terminal, the first node, a first power-supply port configured to be provided with a first voltage, and a second power-supply port configured to be provided with a second voltage; a second control sub-circuit coupled respectively to the input terminal, the first node, the inverse node, the first power-supply port, and the second power-supply port; and a third control sub-circuit coupled respectively to the inverse node, the positive-feedback terminal, the first power-supply port, and the second power-supply port.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 24, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventor: Xianjie Shao
  • Patent number: 11099702
    Abstract: A touchscreen includes a first substrate, a second substrate, an adhesive, a first wiring layer, a second wiring layer, a through hole, and an electrically conductive adhesive. The first substrate includes a first transparent conductive film formed at a surface of the first substrate. The second substrate includes a second transparent conductive film formed at a surface of the second substrate. The adhesive adheres the first and second substrates to each other. The first wiring layer is formed on the surface of the first substrate. The second wiring layer is formed on the surface of the second substrate. The through hole pierces through the second substrate. The electrically conductive adhesive is provided in the through hole, and connects the first wiring layer and the second wiring layer.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 24, 2021
    Assignee: FUJITSU COMPONENT LIMITED
    Inventor: Hideyuki Hagihara
  • Patent number: 11100881
    Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 24, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hoon Lee, Seung-Hwan Moon, Yong-Soon Lee, Young-Su Kim, Chang-Ho Lee, Whee-Won Lee, Jun-Yong Song, Yu-Han Bae
  • Patent number: 11094256
    Abstract: A display device and a driving method thereof are provided. The display device includes: a display panel including a plurality of pixels; a timing controller for calculating an On-Pixel Ratio (OPR) of input image data with respect to an arbitrary frame, and correcting the input image data, based on the OPR; and a data driver for generating a data signal, based on the corrected image data, and providing the data signal to the display panel. The OPRs are calculated in units of pixel rows.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: August 17, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Kwon Eun, Young Min Bae
  • Patent number: 11086161
    Abstract: A display assembly of a head mounted display (HMD) includes a pancake lens display assembly. The pancake display assembly comprises a first lens with a quarter-waveplate and a partially reflective surface, a second lens with a reflective polarizer, and a display. An alignment system positions the first lens relative to the second lens to align the reflective polarizer of the second lens with the quarter-waveplate of the first lens. The alignment system rotates the first lens about an optical axis to position the quarter-waveplate on the first lens such that the quarter-waveplate and the reflective polarizer on the second lens are at an angle where light transmitted through the second lens and then through the first lens is substantially circularly polarized. The alignment system mounts the second lens to the lens housing such that the quarter-waveplate is at the angle relative to the reflective polarizer.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 10, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Evan M. Richards, Hannah D. Noble, Mark Alan Tempel
  • Patent number: 11087652
    Abstract: An abnormality detection circuit includes: a plurality of voltage dividing circuits; a first selector configured to select and output one of a plurality of outputs of the plurality of voltage dividing circuits; a first comparator configured to compare an output of the first selector with a reference voltage; and a first detector configured to detect an abnormality based on an output of the first comparator, wherein the selection of the first selector is switched in synchronization with a vertical synchronization signal or a horizontal synchronization signal of a liquid crystal display device.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 10, 2021
    Assignee: Rohm Co., Ltd.
    Inventors: Akira Hashimoto, Takateru Yamamoto, Sukenori Ito, Yasunobu Inoue
  • Patent number: 11086368
    Abstract: An electronic device detects an input sequence that includes an increase in intensity of an input that corresponds to a first input event. If the input sequence includes a second input event, including a decrease in intensity of the input after the first input event, a long press is not detected and a first operation is performed. If the second input event is not detected within a second time period that is longer than the first time period and the input had a characteristic intensity above a respective intensity threshold between when the first input event was detected and when the second time period elapsed, a long press is detected on an accelerated basis, and a second operation is performed. Finally, a long press is detected if the second input event is not detected within a longer, default time period, and the second operation is performed.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 10, 2021
    Assignee: APPLE INC.
    Inventors: Nicole M. Wells, Leah M. Gum, Kenneth L. Kocienda, Camille Moussette, Jean-Pierre M. Mouilleseaux, Joshua B. Kopin, Jules K. Fennis
  • Patent number: 11079841
    Abstract: Methods and apparatus relating to enabling augmented reality applications using eye gaze tracking are disclosed. An exemplary method according to the disclosure includes displaying an image to a user of a scene viewable by the user, receiving information indicative of an eye gaze of the user, determining an area of interest within the image based on the eye gaze information, determining an image segment based on the area of interest, initiating an object recognition process on the image segment, and displaying results of the object recognition process.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 3, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Ashwin Swaminathan, Mahesh Ramachandran
  • Patent number: 11081066
    Abstract: An electro-optic display including an array of pixel electrodes, where each row of pixel electrodes is associated with a source line, and that source line is connected to a drive chip with a T-wire that connects from the back of the substrate to the front of the substrate through a via. The vias are spaced out, such as in a zig-zag pattern or a pseudo-random pattern to reduce the capacitive coupling between the T-wires when adjacent pixels are driven, for example when presenting text characters.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 3, 2021
    Assignee: E Ink Corporation
    Inventors: Chih-Hsiang Ho, Yi Lu, Yuval Ben-Dov, Teck Ping Sim
  • Patent number: 11068108
    Abstract: An input device capable of precisely determining presence or absence of a specific non-contact operation on an operation screen is provided. An input device includes a display control unit that displays an operation screen on a display surface, a first detection unit that detects a passing state of an object in a first sensing layer in air formed to face the display surface, a second detection unit that detects a passing state of the object in a second sensing layer in air formed between the display surface and the first sensing layer, and a determination unit that determines presence or absence of the specific non-contact operation performed by the object based on respective detection results of the first detection unit and the second detection unit.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: July 20, 2021
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventor: Manabu Murayama
  • Patent number: 11068085
    Abstract: The present invention provides a method for processing a touch screen terminal object and a touch screen terminal. The method includes: receiving an object placing instruction of placing, in a container interface, a source object selected in a source interface, determining, according to attribute information of the source object, a display icon that corresponds to the source object, and displaying, in the container interface, the display icon that corresponds to the source object; receiving an icon placing instruction of placing the display icon that corresponds to the source object and is in the container interface on a selected target object in a target interface; determining a target operation option according to the attribute information of the source object and attribute information of the target object; and starting a target operation procedure according to the target operation option and the target object.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 20, 2021
    Assignee: Huawei Device Co., Ltd.
    Inventor: Ting Zhang
  • Patent number: 11056053
    Abstract: A display device and a method of driving the same. The display device includes a display panel including a plurality of pixels, a degradation compensator configured to output compensation data based on age values of the plurality of pixels and an input grayscale value of input image data, a scan driver configured to supply a scan signal to the display panel, and a data driver configured to supply a data signal corresponding to the compensation data to the display panel. The degradation compensator includes a first compensation unit configured to generate a first compensation grayscale value with reference to the input grayscale value and a first age value, and a second compensation unit configured to generate a second compensation grayscale value with reference to the first compensation grayscale value and the first age value.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: July 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Lee, Dong Hak Pyo, Seung Ho Park, Kyoung Ho Lim, Sang Myeon Han
  • Patent number: 11054933
    Abstract: A circuit for touch sensing includes a driving unit, a self-capacitive sensor circuit, a mutual-capacitive sensor circuit and a control circuit. The driving is configured to generate a driving signal. The self-capacitive sensor circuit is configured to generate a self-capacitance sensing result. The mutual-capacitive sensor circuit is configured to receive the driving signal in order to generate a mutual-capacitance sensing result when the voltage of a node between the self-capacitive sensor circuit and the mutual-capacitive sensor circuit reaches a reference voltage. The control circuit receives and computes the self-capacitance sensing result and the mutual-capacitance sensing result in order to generate a sensing result. By utilizing the circuit for touch sensing of present disclosure, the accuracy and the efficiency of touch sensing can be enhanced.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 6, 2021
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Ching-Lin Jen, Ssu-Che Yang, Chia-Yi Chu, Chung-Lin Chiang, Yao-Jui Chang, Keng-Nan Chen
  • Patent number: 11054646
    Abstract: A head-mounted device may include a display system and an optical system in a housing. The display system may have displays that produce images. The optical system may have Fresnel lenses through which a user of the head-mounted device may view the images. The Fresnel lenses may have concentric rings with slope facets and draft facets angled parallel to the chief rays. Light scattering in the Fresnel lenses may be reduced by coating the draft facets with opaque masking material and/or by aligning concentric rings of the opaque masking material that are supported on a transparent substrate with the draft facets. A central portion of the Fresnel lens that is free of facets may be enlarged to reduce scattering. The Fresnel lenses may have wedge-shaped cross-sectional profiles and may have outer portions that are thicker than inner portions. Gradient-index material may be used in forming the Fresnel lenses.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: July 6, 2021
    Assignee: Apple Inc.
    Inventors: Victoria C. Chan, John N. Border, Jeffrey C. Olson, Yury A. Petrov, Edward S. Huo, Brandon Clarke
  • Patent number: 11046452
    Abstract: A head-up display may include a combiner, a projector, a supplemental indicator, and a processor communicatively coupled to the supplemental indicator and the projector. The projector may be configured to project images onto or through the combiner. The combiner may be configured to present the images to a user. The supplemental indicator may be configured to visibly present supplemental information to the user. The processor may be configured to output image data signals to the projector, wherein the image data signals may be configured to cause the projector to project the images onto or through the combiner. The processor may be further configured to output supplemental indicator signals to the supplemental indicator, wherein the supplemental indicator signals may be configured to cause the supplemental indicator to visibly present the supplemental information to the user.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 29, 2021
    Assignee: Rockwell Collins, Inc.
    Inventors: Raghunath Viswanatha, Daniel Y. Chiew
  • Patent number: 11042285
    Abstract: A system for controlling the operation of a human machine interface (HMI) device located in a vehicle configured to carry a passenger and a driver. The system includes an electrode positioned in a vehicle seat and a signal generating device configured to provide a signal to the electrode. The electrode transmit the signal through the occupant of the seat and the HMI device detects the signal when the occupant contacts the HMI device. The system is configured so that the HMI device operates in a first mode in response to exposure to the signal and in a second mode if the signal is not detected.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: June 22, 2021
    Assignee: Joyson Safety Systems Acquisition LLC
    Inventors: Jeffrey Scott Bennett, Phillip B. Maguire, Leonard Steven Cech
  • Patent number: 11009979
    Abstract: A touchscreen panel and a touch display device including the same are discussed. A plurality of touch lines disposed on the touchscreen panel include first touch lines and second touch lines. A portion or entirety of each of first touch lines connected to the first touch electrodes overlaps a corresponding one of second touch lines connected to the second touch electrodes. The degree of opening of the touchscreen panel is not lowered by the touch lines.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 18, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JaeGyun Lee, Sangkyu Kim, JiHyun Jung, DeukSu Lee, Jaeseung Kim
  • Patent number: 11009713
    Abstract: A head mounted display (HMD) includes a set of one or more lenses defining an optical axis, a display configured to project light through the set of the one or more lenses, a voice coil actuator coupled with the display and configured to move the display along the optical axis, and a first guide that is slidingly coupled with the first voice coil actuator to guide the movement of the first display. The HMD additionally includes a set of one or more position sensors configured to determine a position of the display long the optical axis and an electronic controller configured to receive information identifying a reference position of the display along the optical axis and generate one or more electrical signals for initiating a movement of the first display toward the first reference point along the optical axis.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 18, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Joyce Fang, Nicholas Colonnese, Bruce A. Cleary, Ryan Michael Ebert, Douglas Robert Lanman
  • Patent number: 11011112
    Abstract: Provided is an organic light-emitting display panel including: a first pixel driving circuit driving a first sub-pixel and including first driving transistors, and a second pixel driving circuit driving a second sub-pixel and including one or more second driving transistors. An operating current of the first sub-pixel at a preset grayscale is n times an operating current of the second sub-pixel at the preset grayscale, n?1.5. The first driving transistor includes first and second driving sub-transistors. The first driving sub-transistor has a gate electrode electrically connected to a gate electrode of the second driving sub-transistor, a first electrode electrically connected to a first electrode of the second driving sub-transistor, and a second electrode electrically connected to a second electrode of the second driving sub-transistor. The number of the one or more second driving transistors is smaller than the number of the first driving transistors.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 18, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yue Li, Xingyao Zhou, Mengmeng Zhang, Shuai Yang, Zhi Liu, Zhe Zhao
  • Patent number: 11003281
    Abstract: The present application provides a noise detection circuit, including: a mixing module, configured to perform a mixing operation based on a plurality of frequencies to an integrated signal, to generate a plurality of in-phase signals and a plurality of quadrature signals; a computing module, wherein when the touch control system uses the first frequency to perform the touch control, the computing module performs a signal cancellation operation to a first in-phase signal and a first quadrature signal to calculate and output a first output signal corresponding to the first frequency; and a determination module, configured to select a best output signal from the plurality of output signals and output a best frequency.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: May 11, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Ya-Nan Wen, Yingsi Liang