Patents Examined by Jeff Piziali
  • Patent number: 11978397
    Abstract: A display device includes a display panel including a plurality of pixels which display an image, a panel driver which generates a driving voltage based on a plurality of feedback voltages sensed from the display panel to drive the display panel, and a plurality of sensing lines which are connected to the pixels to sense the feedback voltages, respectively, and apply the sensed feedback voltages to the panel driver. The panel driver generates an average feedback voltage corresponding to an average of the feedback voltages and generates the driving voltage based on the average feedback voltage.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: May 7, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jungdeok Seo, Yunseong Kim, Sumin Lee
  • Patent number: 11968864
    Abstract: A display panel, a method for manufacturing the same and a display device are provided. In a second pixel region of the display panel, there is a first gap between first and second electrical connection elements in a first electrical connection layer, there is a second gap between third and fourth electrical connection elements in a second electrical connection layer, a third electrical connection layer is coupled to a fifth signal line pattern included in each sub-pixel of a corresponding sub-pixel group. The fifth signal line pattern is used to transmit a fifth signal with a fixed electrical potential, and an orthographic projection of the third electrical connection layer onto a substrate of the display panel covers at least part of an orthographic projection of the first gap onto the substrate and at least part of an orthographic projection of the second gap onto the substrate.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 23, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kaipeng Sun, Weiyun Huang, Binyan Wang, Chao Wu
  • Patent number: 11967277
    Abstract: A pixel circuit includes: a light emitting element having one end connected to a first power line supplying a first power voltage; a driving transistor for controlling an amount of current flowing to a second power voltage via the light emitting element electrically connected to a first electrode the driving transistor; an initialization transistor connected between a second electrode of the driving transistor and an initialization power line supplying an initialization voltage, the initialization transistor having a gate electrode connected to a first scan line; a compensation transistor connected between the first power line and the first electrode of the driving transistor, the compensation transistor having a gate electrode connected to a second scan line; and a storage capacitor connected between a gate electrode of the driving transistor and the second electrode of the driving transistor.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: April 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung Hoon Chung
  • Patent number: 11948507
    Abstract: A pixel circuitry, a method for driving the pixel circuitry, and a display device are provided. The pixel circuitry includes a driving circuit, a first switching circuit, a second switching circuit and a light-emitting element. The driving circuit includes a first transistor and a storage capacitor. A control end of the first transistor is electrically connected to the first switching circuit, a first end of the first transistor is electrically connected to a first voltage end, a second end of the first transistor is electrically connected to an anode of the light-emitting element, a third end of the first transistor is electrically connected to the second switching circuit, a first end of the storage capacitor is electrically connected to the first voltage end, and a second end of the storage capacitor is electrically connected to the control end of the first transistor.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: April 2, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xinshe Yin, Tian Dong
  • Patent number: 11947768
    Abstract: A method for multi-touch detection in a touch input device comprising a grid based sensor, the method comprises sampling outputs from a grid based sensor over a first stage of detection, selecting sensor lines based on the sampled outputs, scanning the selected sensor lines along one axis of the grid based sensor over a second stage of detection, and determining positions of user interaction based on outputs sampled in response to scanning the selected sensor lines during the second stage of detection.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: April 2, 2024
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Rafi Zachut, Haim Perski, Jonathan Moore
  • Patent number: 11935467
    Abstract: An OLED display panel is provided. The OLED display panel includes a plurality of sub-pixels arranged in an array and a plurality of pixel drive circuits for driving the sub-pixels. At least one of the pixel drive circuits comprises a reset module, a data signal input module, a storage module, a light emitting device, and a drive module. The drive module drives a first light emitting device and a second light emitting device to emit light in a first display stage, and drives the first light emitting device to emit light in a second display stage, whereas the second light emitting device does not emit light.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: March 19, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zengjian Jin
  • Patent number: 11929023
    Abstract: A pixel circuit, a method of driving the same, and a display device are provided. An input end of an anode reset transistor is connected to an output end of a driving transistor, and an output end of the anode reset transistor is connected to an anode of an organic light emitting diode to collect a leakage current from the anode of the organic light emitting diode through the anode reset transistor to the output end of the driving transistor in an light emitting state. Part of the collected current at the output end of the driving transistor enters the anode of the organic light emitting diode.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 12, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD
    Inventors: Xuanyun Wang, Chao Dai
  • Patent number: 11900879
    Abstract: A sensing circuit includes at least a first gain stage and a controller for controlling the operation of the first gain stage. The first gain stage includes an amplifier having at least one input and one output, and a feedback loop coupled between the input and the output of the amplifier. The feedback loop includes a first capacitor coupled between the input and the output of the amplifier, and a second capacitor having a first terminal coupled to the input of the amplifier through a first switch and a second terminal coupled to the output of the amplifier through a second switch. The second capacitor is configured to be coupled in parallel to the first capacitor during a first portion of a measurement cycle, and disconnected from the first capacitor during a second portion of the measurement cycle.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: February 13, 2024
    Assignee: APPLE INC.
    Inventors: Hasan Akyol, Xuebei Yang
  • Patent number: 11899835
    Abstract: Methods and systems for filtering content include identifying content for presenting in a rendering space defined by one or more mechanisms of a head mounted display (HMD), wherein the content is interactive, streaming content. A rating score for the content is identified. The content is dynamically adjusted to selectively filter a portion of the content based on a user profile of the user, rating score of the content, and ongoing interactions detected at the content. The adjusted content is formatted for rendering on the HMD. The formatted content is automatically transmitted to the HMD for rendering, in response to the request.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: February 13, 2024
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Jeffrey Roger Stafford, Frederick Umminger, Richard Marks
  • Patent number: 11892720
    Abstract: Electrical shield line systems are provided for openings in common electrodes near data lines of display and touch screens. Some displays, including touch screens, can include multiple common electrodes (Vcom) that can have openings between individual Vcoms. Some display screens can have an open slit between two adjacent edges of Vcom. Openings in Vcom can allow an electric field to extend from a data line through the Vcom layer. A shield can be disposed over the Vcom opening to help reduce or eliminate an electric field from affecting a pixel material, such as liquid crystal. The shield can be connected to a potential such that electric field is generated substantially between the shield and the data line to reduce or eliminate electric fields reaching the liquid crystal.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: February 6, 2024
    Assignee: Apple Inc.
    Inventors: Zhibing Ge, Cheng-Ho Yu, Young-Bae Park, Abbas Jamshidi Roudbari, Shih-Chang Chang, Cheng Chen, Marduke Yousefpor, John Z. Zhong
  • Patent number: 11893933
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for compensating an image to be shown on a display including an array of light-emitting pixels and a sensor arranged to receive light transmitted by adjacent light-emitting pixels. A method includes collecting, from the sensor, a luminance of light received by the sensor during an emission-on period, and a luminance of light received by the sensor during an emission-off period. The method includes calculating, by comparing the luminance during the emission-on period to the luminance during the emission-off period, a luminance of light internally reflected from the adjacent pixels and received by the sensor during the emission-on period. The method includes determining that an error between the luminance of light internally reflected and a reference luminance equals or exceeds a threshold error, and adjusting a driving voltage for driving the pixels to reduce the error.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 6, 2024
    Assignee: Google LLC
    Inventors: Sun-il Chang, Hyunchul Kim
  • Patent number: 11893939
    Abstract: A pixel driving circuit includes a driving signal control sub-circuit and a driving duration control sub-circuit. The driving signal control sub-circuit is configured to provide a driving signal to the driving duration control sub-circuit under control of a first scanning signal terminal and a enable signal terminal. The driving signal is related to a first data signal received at a first data signal terminal and a first voltage signal received at a first voltage signal terminal. The driving duration control sub-circuit is configured to transmit the driving signal to the element to be driven under control of a second scanning signal terminal and a enable signal terminal. A duration for which the driving signal is transmitted to the element to be driven is related to a second data signal received at a second data signal terminal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: February 6, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Minghua Xuan, Xiaochuan Chen, Dongni Liu
  • Patent number: 11893934
    Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 6, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Han Yue, Minghua Xuan, Can Zhang, Can Wang, Ming Yang, Ning Cong, Angran Zhang, Jiao Zhao, Xiaochuan Chen
  • Patent number: 11881166
    Abstract: Electroluminescent display devices and a method for driving the same are disclosed. An electroluminescent display device according to an embodiment of the present disclosure includes a display panel including a plurality of pixels emitting light according to image data, a first memory storing a stress accumulation value corresponding to the image data, and a compensation gain calculation circuit configured to increase a compensation gain for compensating for the image data on the basis of the stress accumulation value, wherein the stress accumulation value in the first memory is reset whenever the compensation gain increases.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: January 23, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Yu Min Hong, Tae Wook Kim, Jung Hyeon Kim
  • Patent number: 11877482
    Abstract: The present disclosure provides a display substrate, a method for manufacturing the same, a driving method and a display device. The display substrate includes a base substrate, gate lines, data lines and sub-pixels. The sub-pixels include sub-pixel columns corresponding to the data lines in a one-to-one manner. In a sub-pixel driving circuit of the sub-pixel, a driving transistor and a data writing transistor are located at a first side of an aperture area of the sub-pixel; a sensing transistor is located at a second side of the aperture area of the sub-pixel. The first side and the second side are opposite sides of the aperture area along the extension direction of the data lines. Gate electrodes of sensing transistors in a same sub-pixel row, and gate electrodes of data writing transistors in an adjacent next sub-pixel row, are all coupled to a gate line corresponding to the adjacent next sub-pixel row.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: January 16, 2024
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Yongqian Li, Zhidong Yuan
  • Patent number: 11869431
    Abstract: A power provider includes: a first power converter to convert an input voltage, and output a first power voltage to a display panel through a first power line; a second power converter to convert the input voltage, and output a second power voltage to the display panel through a second power line; and a short circuit detecting circuit to detect a short-circuit of the first power line and the second power line in the display panel, by determining whether or not a level of a sensed voltage measured at the second power line is greater than or equal to a reference short circuit voltage level during a short circuit detecting period. The short circuit detecting circuit is to vary a length of the short circuit detecting period and the reference short circuit voltage level in response to a driving frequency.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Kwan Han
  • Patent number: 11862086
    Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: January 2, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Hoon Park, Jae Sung Yu
  • Patent number: 11854480
    Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: December 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Sung Yu, Jae Hoon Park
  • Patent number: 11847969
    Abstract: A pixel driving circuit and a method for driving the same, a display panel, and a display device are described. The pixel driving circuit includes a driving circuit and a light-adjusting circuit. The driving circuit is configured to provide a light-emitting current to a light-emitting element. The light-adjusting circuit is arranged between the driving circuit and the light-emitting element, and configured to adjust a value of the light-emitting current.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: December 19, 2023
    Assignee: WUHAN TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Jiao Wu, Maoqing Zhou
  • Patent number: 11842687
    Abstract: A pixel driving circuit includes a light-emitting component, a driving transistor, a storage capacitor, a compensation capacitor, and first to third control assemblys. A control terminal, a first terminal and a second terminal of the driving transistor are correspondingly connected to a point G, a point S and a point D. A first response terminal, a receiving terminal and an output terminal of the first control assembly are correspondingly connected to a first control line, a power line and the point S. A second response terminal, a ground terminal, a data signal terminal and first to third connection terminals of the second control assembly are correspondingly connected to a scan line, a ground line, a data line, the point G, a point Q and a first terminal of the storage capacitor. A second terminal of the storage capacitor is connected to the point S.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: December 12, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Tao Fan, Baohong Kang