Patents Examined by B. Lee
  • Patent number: 11862070
    Abstract: A source driver includes: a first gradation voltage generation unit generating a gradation voltage of a first polarity supplied to a pixel on a first source line; a first amplifier receiving the gradation voltage of the first polarity to an input end, amplifying it, and outputting a voltage from an output end; a second gradation voltage generation unit generating a gradation voltage of a second polarity opposite to the first polarity to be supplied to a pixel on a second source line provided in the vicinity of the first source line; a second amplifier receiving the gradation voltage of the second polarity to an input end, amplifying it, and outputting a voltage from an output end; and a voltage comparison unit comparing a voltage of the input end of the second amplifier with the voltage of the output end of the second amplifier and outputs a comparison result.
    Type: Grant
    Filed: March 13, 2022
    Date of Patent: January 2, 2024
    Assignee: LAPIS Technology Co., Ltd.
    Inventors: Kenichi Shiibayashi, Kenichi Shigeta
  • Patent number: 11862119
    Abstract: According to an aspect, a display device includes a display panel configured to display an image; and a light source configured to emit light to the display panel. The light source includes a first light source configured to emit light in a first primary color, a second light source configured to emit light in a second primary color, and a third light source configured to emit light in a third primary color. A frame period that is a display period of one frame image includes a predetermined number of subframe periods, the predetermined number is four or greater, and color reproduction of the one frame image is performed by a combination of colors that are output in the predetermined number of subframe periods. An output order of colors of the subframe periods is an order of colors in a clockwise direction or in a counterclockwise direction in a hue circle.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: January 2, 2024
    Assignee: Japan Display Inc.
    Inventor: Tomoyuki Ishihara
  • Patent number: 11854493
    Abstract: The present disclosure provides a display substrate and a display device, and belongs to the field of display technology. The display substrate of the present disclosure includes: a base substrate; and a plurality of pixel units arranged in an array, a plurality of signal lines and signal supply modules on the base substrate; wherein the signal supply module includes: a signal supply circuit and a redundant signal supply circuit; each of the signal supply modules is electrically coupled to at least one of the plurality of pixel units through at least one of the plurality of signal lines.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: December 26, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiao Zhao, Li Xiao, Minghua Xuan, Haoliang Zheng, Dongni Liu, Jing Liu, Qi Qi
  • Patent number: 11854496
    Abstract: The display device includes a display panel in which a first display area and a second display area adjacent to the first display area are defined, a data driving circuit which drives the plurality of data lines, a scan driving circuit which drives the plurality of scan lines, and a driving controller which receives an image signal and a control signal, and controls the data driving circuit and the scan driving circuit based on an operation mode, where the driving controller includes a luminance deviation compensation unit which compensates for luminance deviation of the first display area and the second display area when the operation mode is a multi-frequency mode in which the first display area is driven at a first frequency and the second display area is driven at a second frequency different from the first frequency.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Dong Kim, Sangan Kwon, Changnoh Yoon, Seungjae Lee
  • Patent number: 11854483
    Abstract: The present application discloses a current-driven display device of an internal compensation type in which threshold compensation of a drive transistor is appropriately performed without causing a decrease in display quality or a decrease in yield during manufacturing, and display luminance is improved while a drive voltage is maintained. A pixel circuit 15 in the display device includes first and second drive transistors M1a, M1b, and the gate terminals thereof are connected to each other and connected to a holding capacitor Cs. During the data write period, a voltage of a corresponding data signal line Dj is written to the holding capacitor Cs via the first drive transistor M1a, having been set in a diode connection mode by a threshold compensation transistor M3, to perform data writing accompanied by threshold compensation.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 26, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Naoki Ueda, Ryohei Morita
  • Patent number: 11854478
    Abstract: The present application discloses a current-driven display device that can perform accurate external compensation in consideration of a temperature distribution in a display panel while preventing the configuration from being complicated. A display portion of an organic EL display device is provided with a plurality of temperature detection circuits in addition to pixel circuits arranged in a matrix. A data-side drive circuit measures a current flowing through a transistor in each temperature detection circuit.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 26, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masaaki Moriya, Masafumi Ueno, Naoki Shiobara
  • Patent number: 11847962
    Abstract: The present invention provides an active mini LED display and driving method thereof. The driving method comprises: controlling a gate voltage of the metal oxide field effect transistor by a voltage to modulate the current and luminous brightness required to driver the light emitting diode; processing display data to generate timing-controlled channel signals and scanning signals to driver transistors and light emitting diodes to achieve image display; modulating scanning voltage signals or channel voltage signals into analog-type voltages and/or pulse-width-type voltages, and then compensating the unevenness in brightness produced by the epitaxy of each light-emitting diode. The driving method of the active mini LED display of the present invention can reduce the power loss of transmission, and can integrate with various light emitting diodes within a small pixel pitch to manufacture various displays by means of heterogeneous polycrystalline wafer-level packaging.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: December 19, 2023
    Inventors: Tai-Hui Liu, Chung-Hsi Liu
  • Patent number: 11841508
    Abstract: A light source includes an array of micro-light emitting diodes (micro-LEDs), an array of micro-lenses, and a bonding layer bonding the array of micro-lenses to the array of micro-LEDs. Each micro-LED of the array of micro-LEDs includes a first mesa structure formed in a plurality of semiconductor layers. The array of micro-lenses is bonded to a first semiconductor layer of the plurality of semiconductor layers by the bonding layer. The first semiconductor layer includes an array of second mesa structures formed therein. The first mesa structure and the second mesa structure are on opposite sides of the plurality of semiconductor layers. Each second mesa structure of the array of second mesa structures is aligned with a respective micro-lens of the array of micro-lenses and the first mesa structure of a respective micro-LED of the array of micro-LEDs.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: December 12, 2023
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Samir Mezouari, Andrea Pinos, Wei Sin Tan, John Lyle Whiteman
  • Patent number: 11837137
    Abstract: A display panel, an electronic device and a method are provided. The display panel includes: a base substrate; a plurality of sub-pixels arranged in a matrix; a plurality of data lines and a plurality of gate lines, the data line intersect the gate line; at least some of the plurality of sub-pixels are divided into a plurality of sub-pixel association groups, each sub-pixel association group includes a plurality of sub-pixels of a same color electrically connected to a same data line; the display panel further includes an associated pixel control circuit configured to independently perform data writing on the plurality of sub-pixels of the same color in the sub-pixel association group in the first image display mode; and synchronously perform data writing on the plurality of sub-pixels of the same color electrically connected to the same data line in the sub-pixel association group in the second image display mode.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: December 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kuanjun Peng, Tieshi Wang, Hui Zhang
  • Patent number: 11837142
    Abstract: The present disclosure relates to an array substrate and a display device. The array substrate includes a plurality of initialization signal lines and a plurality of connection lines. The initialization signal lines are arranged in a conductive layer, extend along a first direction and are arranged at intervals along a second direction, and are used to provide initialization signals to the sub-pixels. The connection lines are arranged in another conductive layer, extend along the second direction and are arranged at intervals along the first direction. Projections of at least one initialization signal line and at least one connection line on the base substrate intersect, and the at least one initialization signal line and the at least one connection line are connected through a via hole, so that the projections of the initialization signal lines and the connection lines on the substrate form a grid-like structure.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: December 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Long Han, Libin Liu, Lujiang Huangfu
  • Patent number: 11836829
    Abstract: In a display control method for displaying a first image and a second image each indicating a page constituting a document side by side on a virtual axis of a display face, the method includes adding, to the first image, an object extending outside an image face of the first image when a first operation is received from a user on the first image; and moving the second image in a predetermined direction when a second operation is received from the use on the second image.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: December 5, 2023
    Assignee: Seiko Epson Corporation
    Inventor: Yusuke Yamada
  • Patent number: 11837187
    Abstract: A driving method of a display panel, a driving device, a display device, and a storage medium are provided. The driving method of the display panel includes: obtaining an input image that is to be displayed; determining a display picture corresponding to the plurality of display pixels of the display screen according to the input image; determining a first dimming picture corresponding to the plurality of dimming pixels of the dimming screen according to the input image, and processing the first dimming picture to obtain a second dimming picture; providing the display picture to make the dimming screen perform backlight modulation on the display screen according to the second dimming picture, and providing the second dimming picture to make the display screen display the input image according to the display picture.
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: December 5, 2023
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY PRESY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Tiankuo Shi, Xiaomang Zhang, Yan Sun, Shuo Zhang, Zhihua Ji, Wei Sun, Ming Chen
  • Patent number: 11829205
    Abstract: An electronic device may be provided with a display. The display may have a flexible display layer covered by a protective display cover layer. The flexible display layer may be an organic light-emitting diode display layer or other layer with a flexible substrate. The flexible display layer may have a central region with peripheral edges. The central region may be rectangular, may be octagonal, or may have other shapes. Strip-shaped protrusions may extend along each of the peripheral edges of the central region. The strip-shaped protrusions may be bent to provide the protrusions with curved surface profiles. The display cover layer may have a cushion shape with bowed edges that overlap parts of the strip-shaped protrusions, may have curved inner and outer surfaces and/or planar surfaces, may have rounded corners with compound curvature, may have edges with curved surface profiles, and/or may have other configurations.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: November 28, 2023
    Assignee: Apple Inc.
    Inventor: Tyler S. Bushnell
  • Patent number: 11830416
    Abstract: A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Soo Hwang, Hideo Yoshimura
  • Patent number: 11830435
    Abstract: A gate driving circuit includes a plurality of stages that are dependently connected, wherein an n-th one of the stages (n being a natural number) comprises a node controller for controlling voltages of set and reset nodes, a scan signal generator controlled in accordance with the voltages of the set and reset nodes, thereby outputting a scan signal to a scan line of a display panel, and a reference voltage/high-level supply power output unit controlled in accordance with the voltages of the set and reset nodes, thereby outputting a reference voltage or a high-level supply voltage to a reference voltage line of the display panel.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: November 28, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Dong-Hyun Kim
  • Patent number: 11823638
    Abstract: A display circuit device includes a CPU, a display control circuit, and a drive signal generation circuit. The drive signal generation circuit includes a generation circuit that generates a first CRC value that is a CRC value of command data received from the CPU, and a transmission circuit that transmits the first CRC value to the CPU. The CPU includes an expected value generation circuit that generates a second CRC that is a CRC value of command data before being input to the drive signal generation circuit, a reception circuit that receives the first CRC value, a comparison circuit that compares the first CRC value with the second CRC value, and a control circuit that executes control based on a comparison result obtained by the comparison circuit.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: November 21, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yusuke Yoneyama
  • Patent number: 11817046
    Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: November 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Jae Jeong, Kyung Bae Kim, Chong Chul Chai, Kyung Hoon Chung
  • Patent number: 11804180
    Abstract: The present disclosure provides a pixel driving circuit, a method for driving the same, and a display device. A first reset sub-circuit included in the pixel driving circuit is used to control to connect or disconnect a gate electrode of a driving transistor and a common node, and to connect or disconnect the common node and the first initialization voltage input terminals; control to connect or disconnect the common node and a second initialization voltage input terminal under the control of a first control terminal; a difference between a potential of a second initialization signal inputted by the second initialization signal input terminal and a potential of a gate electrode of the driving transistor during a light emission period is smaller than a threshold value.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: October 31, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Bo Wang
  • Patent number: 11804178
    Abstract: A display substrate of the present disclosure includes a display region including sub-pixels, data lines, and gate lines; and a circuit region including a first sub-region and a second sub-region opposite to each other at two sides of the display region along a first direction. The first sub-region is provided with a plurality of multiplexing unit groups, each of which includes at least one multiplexing unit. The second sub-region is provided with a plurality of testing unit groups, each of which includes at least one testing unit. The circuit region is further provided with a plurality of driving unit groups, each of which includes at least one driving unit. The driving unit groups and the multiplexing unit groups are alternately arranged along an extending direction of the first sub-region in the first sub-region.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: October 31, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lili Du, Hongjun Zhou, Wen Tan, Cong Liu
  • Patent number: 11803234
    Abstract: Systems, devices, media, and methods are presented for an immersive augmented reality (AR) experience using an eyewear device. A portable eyewear device includes a processor, a memory, and a display projected onto at least one lens assembly. The memory has programming stored therein that, when executed by the processor, captures information depicting an environment surrounding the device and identifies a match between objects in that information and predetermined objects in previously obtained information for the same environment. When the position of the eyewear device reaches a preselected location with respect to the matched objects, a physical output is provided to produce the immersive experience. The physical output changes as the position of the eyewear device moves to maintain the immersive experience.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: October 31, 2023
    Assignee: Snap Inc.
    Inventors: Ilteris Canberk, Shin Hwun Kang, Doug Mead