Patents Examined by Shaheda A Abdin
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Patent number: 11508310Abstract: A scan driver and an organic light emitting display apparatus including the same, where a narrow bezel is realized, are provided. The scan driver includes a plurality of stages, wherein each of the plurality of stages includes a Q1 node controller controlling a voltage of a Q1 node by using first and second clock signals whose phases are opposite to each other, a QB node controller controlling a voltage of a QB node by using the first and second clock signals, an output clock signal, and a start signal, a first transistor outputting a gate low voltage as a scan signal while the QB node is activated, and a second transistor outputting a gate high voltage as the scan signal while a Q2 node is activated, and outputting the gate low voltage as the scan signal when the Q2 node is bootstrapped to a voltage lower than the gate low voltage.Type: GrantFiled: June 9, 2021Date of Patent: November 22, 2022Assignee: LG DISPLAY CO., LTD.Inventor: Yong Seok Park
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Patent number: 11488506Abstract: A display device includes a display panel in which a first display region and a second display region adjacent to the first display region are defined. The display panel includes main pixels disposed in the first display region, first sub-pixels disposed in a first sub-region of the second display region, and second sub-pixels disposed in a second sub-region of the second display region and which have a different pixel structure from the main pixels.Type: GrantFiled: March 26, 2021Date of Patent: November 1, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hwi Kim, Jeongkuk Kim, Kyu Hwan Hwang
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Patent number: 11488527Abstract: A display device capable of discharging residual charges includes a discharging circuitry to discharge charges remaining in a GIP driver, a Gate D-IC, a Source D-IC, a Gamma IC, etc. to a ground GND when a display panel is powered off, so that the display device protects the display panel by rapidly discharging residual charges that may accumulate on the display panel and a printed circuit board when power is off.Type: GrantFiled: December 16, 2021Date of Patent: November 1, 2022Assignee: LG DISPLAY CO., LTD.Inventor: Jaeseung Lee
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Patent number: 11482582Abstract: The present disclosure provides a display panel and an electronic device. The display panel includes: a base substrate; and a pixel arranged on the base substrate, wherein the pixel includes a first sub-pixel including a first sub-pixel drive circuit and a first light emitting element and a second sub-pixel including a second sub-pixel drive circuit and a second light emitting element, the first and second sub-pixel drive circuits are arranged sequentially in a first direction and extend in a second direction, wherein the first light emitting element includes a first anode, the second light emitting element includes a second anode, an orthographic projection of each of the first and the second anodes partially covers an orthographic projections of the first and second sub-pixel drive circuits, and the orthographic projection of the first anode does not overlap the orthographic projection of the second anode.Type: GrantFiled: May 15, 2020Date of Patent: October 25, 2022Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.Inventors: Meng Li, Zhongyuan Wu, Yongqian Li, Dacheng Zhang, Jingquan Wang, Yu Wang, Chen Xu
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Patent number: 11481028Abstract: According to one embodiment, an eye movement detecting device comprises first, second, third, fourth and fifth electrodes. A line connecting the first and the third electrodes passes through the right eye and a line connecting the second and the fourth electrodes passes through the left eye on at least one of a front view, a plan view or a side view. A distance between the fifth and the first electrodes is equal to a distance between the fifth and the second electrodes. A distance between the fifth and the third electrodes is equal to a distance between the fifth and the fourth electrodes. The detector respectively detects a horizontal movement of the right eye and a horizontal movement of the left eye.Type: GrantFiled: July 14, 2021Date of Patent: October 25, 2022Assignee: Kabushiki Kaisha ToshibaInventor: Hiroaki Komaki
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Patent number: 11423833Abstract: A pixel circuit includes a first scan thin-film transistor (TFT) receiving a first data voltage, a first storage capacitor maintaining a first gate voltage corresponding to the first data voltage, a first driving TFT having a gate connected to the first storage capacitor and controlling the amount of a first driving current based on the first gate voltage, a first light-emitting device emitting light according to the first driving current, a second scan TFT receiving a second data voltage in response to an emission control signal, a second driving TFT having a gate connected to the gate of the first driving TFT and a source receiving the second data voltage and controlling the amount of a second driving current based on a difference between the first gate voltage and the second data voltage, and a second light-emitting device emitting light according to the second driving current.Type: GrantFiled: December 21, 2020Date of Patent: August 23, 2022Assignee: Samsung Display Co., Ltd.Inventor: Keunwoo Kim
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Patent number: 11422766Abstract: A display apparatus is disclosed. The display apparatus includes at least one display module; a first interface configured to receive a first signal from a first display apparatus; a second interface configured to receive a second signal from a second display apparatus; and a processor configured to: repeatedly execute a first operation for identifying the first signal received through the first interface and a second operation for identifying the second signal received through the second interface, based on the first signal being identified while executing the first operation, display an image on the at least one display module based on the first signal received through the first interface without executing the second operation, and based on the second signal being identified while executing the second operation, display the image on the at least one display module based on the second signal received through the second interface without executing the first operation.Type: GrantFiled: September 23, 2020Date of Patent: August 23, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Deukgeun Ahn, Jaemoon Lee
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Patent number: 11417283Abstract: Disclosed herein are a display device for low-speed driving and a driving method thereof. The display device according to embodiments of the present disclosure may set a reference compensation voltage for compensating a node voltage of each pixel during an image holding period after a refresh period where image data are input at the time of low-speed driving, and may compensate a node voltage of each sub pixel on the basis of a unit of at least one frame during each image holding period between the refresh periods, thereby making it possible to prevent a deterioration of image quality and reduce electricity consumption.Type: GrantFiled: October 15, 2020Date of Patent: August 16, 2022Assignee: LG Display Co., Ltd.Inventors: Sungyoung Son, Suhyeon Jo, Dongseok Ahn
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Patent number: 11416094Abstract: A display device includes a display panel including a display area in which an image is displayed and a peripheral area disposed outside of the display area, and a touch sensor disposed on the display panel. The touch sensor includes a plurality of sensor electrodes formed in a repeated arrangement of sensor patterns that forms a touch active area, a plurality of sensor wirings connected to the sensor electrodes and disposed outside of the touch active area, and at least one insulating layer overlapping the display area and the peripheral area. At least a portion of the sensor electrodes is formed over the display area and the peripheral area.Type: GrantFiled: September 20, 2021Date of Patent: August 16, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Hwa Kim, Il Joo Kim, Deok Joong Kim, Kyung Su Lee
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Patent number: 11417288Abstract: The present invention provides a control circuit applied to a display panel, wherein the control circuit includes a receiving interface, an image processing circuit and a transmission interface. The receiving interface is configured to receive image data, wherein the image data has a variable frame rate. The image processing circuit is configured to receive the image data from the receiving interface, and perform a frequency multiplication operation on the image data according to a frame rate of the image data to generate output image data, wherein a frame rate of the output image data is a positive integer multiple of the frame rate of the image data. The transmission interface is configured to receive the output image data from the image processing circuit, and transmit the output image data to the display panel.Type: GrantFiled: October 20, 2021Date of Patent: August 16, 2022Assignee: Realtek Semiconductor Corp.Inventor: Li-Ang Chen
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Patent number: 11410588Abstract: A display device includes a display unit, an external device interface unit configured to receive video having a second frequency from a set-top box converting an original video having a first frequency into the video having the second frequency, and a control unit configured to: determine whether an abnormal output state is detected, based on the video having the second frequency; when the abnormal output state is detected, determine the number of interpolation frames to be generated so as to output the original video having the first frequency as final video having a third frequency through the display unit; and generate interpolation frames as many as the determined number of interpolation frames.Type: GrantFiled: April 21, 2021Date of Patent: August 9, 2022Assignee: LG ELECTRONICS INC.Inventors: Taeha Um, Hyunchul Noh, Seongyeol Ahn, Sangjun Kim
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Patent number: 11410631Abstract: A method of operating an optical proximity sensor of a computer device having a display, where the optical proximity sensor is located beneath or otherwise adjacent to the display. The method comprises obtaining a vertical synchronization signal from a display driver, and synchronizing periodic illumination of a light emitter of the optical proximity sensor with the vertical synchronization signal.Type: GrantFiled: May 5, 2021Date of Patent: August 9, 2022Assignee: ams International AGInventors: Bernhard Greimel-Làngover, Christian Halper, Helmut Theiler, Herbert Lenhard, Josef Kriebernegg, Manuel Hoerbinger, Peter Bliem, Whitney Hernandez
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Patent number: 11410623Abstract: A control method of a time sequential control signal and a driving circuit are provided. A main TCON chip and an assist TCON chip compute corresponding frame rates according to pixel clock signal frequencies, then call a corresponding table, and transmit the table to a first driving unit and a second driving unit respectively. The first driving unit and the second driving unit respectively perform scanning on rows and columns of pixels to allow complicated dynamic images to be displayed with smooth motions.Type: GrantFiled: May 12, 2020Date of Patent: August 9, 2022Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaoli Fang, Guangxing Xiao
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Patent number: 11393424Abstract: A display device with a variant-shape display region other than the rectangular display region is configured to form a scanning line drive circuit along the variant-shape display region. The scanning line drive circuit includes bus wiring group with clock wiring for supplying clocks with three or more phases and the power supply wiring for supplying power, and the unit circuits for configuring the shift register including five or more transistors. The bus wiring and the unit circuits are formed on the different regions so as not to cross with one another.Type: GrantFiled: December 23, 2020Date of Patent: July 19, 2022Assignee: Japan Display Inc.Inventors: Takayuki Suzuki, Hiroyuki Abe
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Patent number: 11393399Abstract: A pixel circuit includes a first transistor, a second transistor operating based on a gate control signal, a third transistor operating based on a compensation control signal, a fourth transistor operating based on a previous gate control signal, fifth and sixth transistors operating based on an emission control signal, a seventh transistor operating based on a bias control signal, an eighth transistor operating based on the bias control signal, a storage capacitor, and a light emitting element connected to the first transistor. The pixel circuit performs one display-scan operation when a driving time of a panel driving frame is a minimum driving time and performs one display-scan operation and at least one self-scan operation when the driving time is not the minimum driving time.Type: GrantFiled: May 14, 2021Date of Patent: July 19, 2022Assignee: Samsung Display Co., Ltd.Inventor: Jisu Na
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Patent number: 11386854Abstract: A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.Type: GrantFiled: June 25, 2019Date of Patent: July 12, 2022Assignee: Samsung Display Co., Ltd.Inventors: Gun-Hee Kim, Sang-Ho Park, Ju-Won Yoon, Seung-Chan Lee, Joo-Hee Jeon
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Patent number: 11373599Abstract: An array substrate, a display panel and a display device are provided in the present disclosure. The array substrate includes a plurality of pixel circuits arranged in an array and a first signal line electrically connected to a pixel circuit of the plurality of pixel circuits. The first signal line includes a branch portion; the pixel circuit includes a storage capacitor, a drive transistor, and a first connection portion electrically connected to a gate electrode portion of the drive transistor; one plate of the storage capacitor at least partially overlaps the gate electrode portion of the drive transistor; and the branch portion at least partially overlaps the first connection portion.Type: GrantFiled: May 18, 2021Date of Patent: June 28, 2022Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma MicroElectronics Co., Ltd. Shanghai BranchInventor: Xian Chen
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Patent number: 11374572Abstract: A complementary circuit, including a logic unit which includes pull-up depletion-mode MOS transistors and pull-down depletion-mode MOS transistors and a level shifting circuit coupled to the logic unit.Type: GrantFiled: October 22, 2019Date of Patent: June 28, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bahman Hekmatshoartabari, Ghavam G. Shahidi
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Patent number: 11342362Abstract: A display device includes an active matrix substrate, wherein the active matrix substrate is layered with a base insulating film, a first metal layer, a metal oxide layer, a first inorganic insulating film, an oxide semiconductor layer, a second inorganic insulating film, a second metal layer, an interlayer insulating layer, and a third metal layer in order from a lower layer, and the active matrix substrate includes a first transistor configured of a first bottom gate electrode, a top gate electrode, and a source electrode and a drain electrode formed by the third metal layer, the source electrode and the drain electrode are respectively electrically connected to a source region and a drain region of the oxide semiconductor layer, the first bottom gate electrode is overlapped with the oxide semiconductor layer, and a metal of the first metal layer is different from a metal of the metal oxide layer.Type: GrantFiled: March 30, 2018Date of Patent: May 24, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Izumi Ishida, Hirohiko Nishiki, Yujiro Takeda
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Patent number: 11341914Abstract: The present disclosure relates to a method for driving an organic light emitting display device, a driving controller, and a display device. When startup detection is required to be performed on the display compensation parameter of the organic light emitting display device, the startup detection is performed on the display compensation parameter of the organic light emitting display device to obtain a new compensation parameter value, and startup compensation display is performed based on the new compensation parameter value. When shutdown detection is required to be performed on the display compensation parameter of the organic light emitting display device, the shutdown detection is performed on the organic light emitting display device to obtain an updated compensation parameter value, and the updated compensation parameter value is stored.Type: GrantFiled: January 21, 2019Date of Patent: May 24, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTDInventors: Fei Yang, Song Meng