Patents Examined by Duc Q Dinh
  • Patent number: 11676532
    Abstract: A display substrate, a display panel, and a display device are provided. The display substrate includes: a base substrate; a plurality of sub-pixels in the display pixel region, wherein each sub-pixel includes a pixel driving circuit; a plurality of first dummy sub-pixel structures on the base substrate and in the first dummy pixel region, wherein at least one first dummy sub-pixel structure includes a compensation capacitor; and a plurality of scan signal lines arranged on the base substrate and configured to transmit a scan signal to the pixel driving circuit. At least one scan signal line extends through the display pixel region and the first dummy pixel region, and the at least one scan signal line is electrically connected to the pixel driving circuit of each sub-pixel in a row of sub-pixels and is further electrically connected to the compensation capacitor of the at least one first dummy sub-pixel structure.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: June 13, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mengqi Wang, Haigang Qing, Zhengkun Li, De Li, Hong Yi, Shilong Wang
  • Patent number: 11663954
    Abstract: A display device includes a substrate including a display area and a peripheral area disposed around the display area, a pad area disposed near an edge of the substrate, and a plurality of pads disposed in the pad area and arranged along the edge of the substrate. An end of a first pad, which is an outermost pad among the plurality of pads, is connected to a first end of a resistor. The first pad is disposed between the resistor and the edge of the substrate, and a second end of the resistor is connected to a wire.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 30, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Soo Yoon, Yun-Kyeong In, Su Kyoung Kim, Won Se Lee, Dong Hyeon Jang, Yu-Jin Jeon, Hyun Ji Cha
  • Patent number: 11640811
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for three sub-color correction based on two-dimensional graphs. In an aspect, a method includes obtaining an image to be shown on a display, determining three sub-color values of a particular pixel in the image, including a first sub-color value for a first sub-color, a second sub-color value for a second sub-color, and a third sub-color value for a third sub-color of the particular pixel, obtaining a representation of a two-dimensional graph of color-correction curves, selecting a selected color-correction curve to use to correct the first sub-color value based on both the second sub-color value and the third sub-color value, determining a corrected first sub-color value based on the first sub-color value, and outputting the image using the corrected first sub-color value instead of the first sub-color value.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: May 2, 2023
    Assignee: Google LLC
    Inventors: Hyunchul Kim, Sang Young Youn
  • Patent number: 11636805
    Abstract: The present specification provides a display device and a driving method thereof performing sampling for sensing a sampling voltage of a driving transistor using a fast mode in which a driving transistor operates by a sampling voltage formed in one storage capacitor, and data writing using the slow mode in which the driving transistor is operated by a data voltage formed in another storage capacitor.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: April 25, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: YongHo Jang, Younghyun Ko
  • Patent number: 11631365
    Abstract: A display device including: a first power line; a second power line; a data line; a first scan line; a second scan line; a light emitting element connected between the first power line and a first node; a first transistor connected between the first node and the second power line and including a gate electrode connected to a second node; a second transistor connected between the data line and the second node and including a gate electrode connected to the first scan line; and a fourth transistor connected between the first power line and the first node and including a gate electrode connected to the second scan line.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Woo Kim, Min Kyu Woo
  • Patent number: 11615737
    Abstract: A display device includes pixels, and first, second, and third gate lines and data lines connected to the pixels. At least one of the pixels includes a light emitting element, a first transistor connected between a first power source and the light emitting element for driving the light emitting element according to a voltage of a first node, a second transistor connected between the first node and a corresponding data line, and driven according to a voltage of a corresponding first gate line, a capacitor connected between the first node and a second node between the first transistor and the light emitting element, a third transistor between the second node and an initialization power line, and driven according to a voltage of a corresponding second gate line, and a fourth transistor connected between the first and second nodes, and driven according to a voltage of a corresponding third gate line.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: March 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu Choi Kim, Joon Chui Goh, Jin Wook Yang, Bong Hyun You
  • Patent number: 11615738
    Abstract: A pixel driving circuit includes a driving control sub-circuit having a first driving sub-circuit and a time control sub-circuit having a second driving sub-circuit. The driving control sub-circuit is configured to: be connected to an element to be driven, write a first data signal into the first driving sub-circuit, enable the first driving sub-circuit to output a driving signal to drive the element to operate. The time control sub-circuit is configured to: write a second voltage signal and a second data signal into the second driving sub-circuit, write a fourth voltage signal into the second driving sub-circuit, connect the second driving sub-circuit to a third voltage signal terminal and the first driving sub-circuit. The second driving sub-circuit is configured to output a third voltage signal to the first driving sub-circuit to enable the first driving sub-circuit to stop outputting the driving signal to control operating duration of the element.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: March 28, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Han Yue, Can Wang
  • Patent number: 11610542
    Abstract: Proposed are a display substrate, a control method thereof and a wearable display device. The display substrate includes M rows and N columns of pixels and 2M rows of scanning lines, a first sub-pixel and a second sub-pixel of pixels in an i-th row are connected to the same scanning line and electrically connected to one of a (2i?1)-th row of scanning line and a 2i-th row of scanning line, and a third sub-pixel of the pixels in the i-th row is electrically connected to the other of the (2i?1)-th row of scanning line and the 2i-th row of scanning line; when the display substrate is displaying, a first sub-pixel, a second sub-pixel and a third sub-pixel among two pixels located in a (2i?1)-th row, a j-th column, and a 2i-th row, a j-th column emit light at an i-th stage of each frame.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: March 21, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongjin Hu, Chang Wang, Cunzhi Li, Mingqiang Wang, Xin Bi, Bin Zhang, Kun Zuo, Jiaxiang Zhang
  • Patent number: 11600221
    Abstract: A display apparatus includes a substrate and pixels disposed on the substrate. Each of the pixels includes sub-pixels. The substrate has an intermediate region and a peripheral region, where the peripheral region is located between an edge of the substrate and the intermediate region. The pixels include standard pixels disposed in the intermediate region and peripheral pixels disposed in the peripheral region. A color displayed by a sub-pixel of a standard pixel and a color displayed by a sub-pixel of a peripheral pixel are the same, and a distance between a second transistor of the sub-pixel of the standard pixel and a pad of the sub-pixel of the standard pixel is not equal to a distance between a second transistor of the sub-pixel of the peripheral pixel and a pad of the sub-pixel of the peripheral pixel.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: March 7, 2023
    Assignee: Au Optronics Corporation
    Inventors: Shang-Jie Wu, Yu-Chieh Kuo, He-Yi Cheng, Che-Chia Chang, Yi-Jung Chen, Yi-Fan Chen, Yu-Hsun Chiu, Mei-Yi Li
  • Patent number: 11592914
    Abstract: A hand-held device with a sensor for providing a signal indicative of a position of the hand-held device relative to an object surface enables power to the sensor at a first time interval when the hand-held device is indicated to be in a position that is stationary and adjacent relative to the object surface, enables power to the sensor at a second time interval shorter than the first time interval when the hand-held device is indicated to be in a position that is moving and adjacent relative to the object surface, and enables power to the sensor at a third time interval when the hand-held device is determined to be in a position that is removed relative to the object surface.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: February 28, 2023
    Assignee: Universal Electronics Inc.
    Inventors: Stephen Brian Gates, Jeremy K. Black
  • Patent number: 11588137
    Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a pixel including a microlens array and a light-emitting device. The light-emitting device emits first light. The microlens array collects the first light. The microlens array includes a plurality of microlenses. The microlenses have a cross section having a shape with which they can be arranged with a filling factor higher than that of a circle on a plane parallel to the light-emitting device. The microlenses have a curved surface on a plane orthogonal to the plane parallel to the light-emitting device. The convex side of the curved surface faces the light-emitting device.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: February 21, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Shingo Eguchi, Koji Kusunoki
  • Patent number: 11579497
    Abstract: A substrate for a display includes a substrate section on which a flexible substrate and a driver are mounted, a flexible substrate side terminal area, disposed in a mounting area on the substrate section for the flexible substrate, to which a signal is inputted from the flexible substrate, a driver side terminal area, disposed in a mounting area on the substrate section for the driver, through which at least a part of the signal is inputted and outputted to the driver, a wire, disposed to extend from the mounting area on the substrate section for the flexible substrate to the mounting area for the driver and connected to the flexible substrate side terminal area and the driver side terminal area, through which the signal is transmitted, and a shield section, disposed to overlap the wire via an insulating film on the substrate section, that is kept at a constant potential.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: February 14, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yukio Shimizu, Shinzoh Murakami
  • Patent number: 11568798
    Abstract: A display panel includes a pixel circuit that includes a light emitting module, a driving module, a first dual control module, and a second dual control module. A control end of the driving module is connected to a first node. The first dual control module has a control end connected to a first scanning line and has a first end connected to the first node. A first capacitor is formed between an intermediate node of the first dual control module and a first potential line. The second dual control module has a first end connected to the first node and has a second end connected to the driving module. A second capacitor is formed between an intermediate node of the second dual control module and a second potential line. Capacitance of one of the first capacitor and the second capacitor is greater than another.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 31, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Xingda Xia, Jujian Fu, Nana Xiong, Yuqi Hu
  • Patent number: 11562685
    Abstract: An LED driving apparatus for driving an LED array including a plurality of digital-to-analog converters and a plurality of data latch circuits is provided. Each of the digital-to-analog converters is coupled to a corresponding LED, and outputs a driving current according to n-bits pixel data to drive the corresponding LED. Each of the plurality of data latch circuits stores the n-bits pixel data, and is coupled to a corresponding digital-to-analog converter to control the n-bits pixel data to be written into the corresponding digital-to-analog converter. Each of digital-to-analog converters includes n sub-driving current generating circuits. Each of the n sub-driving current generating circuits generates a sub-driving current having a current value corresponding to a bit order of a bit of the n-bits pixel data. The driving current is generated by summing up n sub-driving currents.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: January 24, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventor: Sheng-Wen Hsiao
  • Patent number: 11563039
    Abstract: To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film. The light shielding film is formed to overlap with the semiconductor layer and has a wider area than the semiconductor layer. This results in having a gate covering the semiconductor layer from an upper side and a back gate covering the semiconductor layer from a lower side, so that the sensitivity can be maintained high irrespective of decreasing the electrostatic protection circuit in dimension.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: January 24, 2023
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Tatsuya Ishii
  • Patent number: 11551609
    Abstract: The present disclosure provides an array substrate and a display device. The array substrate includes: a base substrate, a plurality of sub-pixels, a plurality of data lines, a plurality of first power lines, a plurality of data line leads; and the array substrate further includes: a plurality of selector switches; a plurality of data signal input lines, at a side of the plurality of selector switches away from the display region, each of at least a part of the plurality of selector switches being connected to one data signal input line; a first power bus, at a side of the plurality of selector switches away from the display region; and a plurality of connecting portions, connected to the first power bus and the plurality of first power lines, the plurality of connecting portions extending towards the display region along regions between the plurality of selector switches.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: January 10, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Weiyun Huang, Yue Long, Yao Huang, Chao Zeng, Meng Li
  • Patent number: 11538431
    Abstract: A display system comprising a plurality of display controller circuits controlling a like number of independent segments of pixel drive circuits of a backplane. Each pixel drive circuit comprises a memory element and associated pixel drive circuitry. The segments of the backplane may be organized vertically. The word line for the memory cells of a first segment of pixel drive circuits passes underneath a second segment of pixel drive circuits without directly interacting with the pixel drive circuits of the second segment in order to reach the pixel drive circuits of the first segment. The plurality of display controller circuits operate asynchronously but are kept at the same frame rate by an external signal such as Vsync.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 27, 2022
    Assignee: Google LLC
    Inventors: Bo Li, Kaushik Sheth
  • Patent number: 11538874
    Abstract: An organic light emitting display apparatus includes an organic light emitting display panel including a display area having a transparent area and an opaque area, and a non-display area. A gate driver is configured to sequentially supply a gate pulse to a plurality of gate lines included in the organic light emitting display panel. An initialization circuit is configured to transfer gate pulses or initialization control signals, output from the gate driver, to a plurality of transparent area gate lines. A camera is configured to photograph a region in a forward direction with respect to the organic light emitting display panel, and the camera may be provided in the transparent area of a rear surface of the organic light emitting display panel. A first pixel driving circuit provided in the transparent area may differ from a second pixel driving circuit provided in the opaque area.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: December 27, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyoung-Su Kim, Jonghyeok Im, Gyungmin Kim
  • Patent number: 11532647
    Abstract: A layout pattern of a demultiplexer circuit of a display device employing the SSD method is configured as described below. Specifically, demultiplexers in the demultiplexer circuit are grouped with three demultiplexers as one set, and nine transistors as switching elements included in the three demultiplexers of each set are arranged to be aligned in the extending direction of a source line with three transistors as a unit while positions of the nine transistors are sequentially shifted in the vertical direction with respect to the source line. Furthermore, any two adjacent sets are arranged such that a direction in which nine transistors included in one set are shifted in the vertical direction with three transistors as a unit and a direction in which nine transistors in the other set are shifted in the above-described vertical direction with three transistors as a unit are opposite to each other.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: December 20, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohei Hosoyachi, Yuhichiroh Murakami, Shige Furuta, Takahiro Yamaguchi
  • Patent number: 11520199
    Abstract: A display device includes: a capacitance wire; a first pixel electrode disposed so as to be adjacent to the capacitance wire; a second pixel electrode disposed so that the capacitance wire is located between the first pixel electrode and the second pixel electrode; a first capacitance forming electrode connected to the first pixel electrode and disposed so as to overlap the capacitance wire via an insulating film; and a shield electrode disposed so as to be located between the first pixel electrode and the second pixel electrode and so as to at least partially overlap the first capacitance forming electrode via an insulating film.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: December 6, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Junichi Morinaga, Masahiro Yoshida