Patents Examined by Dorothy Harris
  • Patent number: 12272296
    Abstract: A display device includes a scan write line configured to receive a scan write signal, a scan initialization line configured to receive a scan initialization signal, a sweep signal line configured to receive a sweep signal, a first data line configured to receive a first data voltage, a second data line configured to receive a second data voltage, and a subpixel connected to the scan write line, the scan initialization line, the sweep signal line, the first data line, and the second data line. The subpixel includes a light-emitting element, a first pixel driver including a first transistor configured to generate a control current according to the first data voltage of the first data line, and a second pixel driver including an eighth transistor configured to generate a driving current applied to the light-emitting element according to the second data voltage.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: April 8, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Joon Kim, Kye Uk Lee, Sang Jin Jeon, Jung Hwan Hwang
  • Patent number: 12260837
    Abstract: According to an aspect, a display device includes scan lines, signal lines, a scan circuit, a signal output circuit, pixels each having a switching element and a pixel electrode, a common electrode, and a common electrode drive circuit. In a potential reset period to reset a potential of the pixel electrode and a common potential inversion period subsequent to the potential reset period, the scan circuit supplies, to the scan lines, a drive potential to drive the switching elements, and the signal output circuit supplies, to the signal lines, an intermediate potential between a potential corresponding to a maximum gradation value and a potential corresponding to a minimum gradation value. In the common potential inversion period, the common electrode drive circuit switches the common potential between a first common potential and a second common potential higher than the first common potential.
    Type: Grant
    Filed: January 16, 2024
    Date of Patent: March 25, 2025
    Assignee: Japan Display Inc.
    Inventor: Hirotaka Hayashi
  • Patent number: 12260807
    Abstract: A display device is provided. The display device includes a first display panel and a second display panel stacked in a first direction. The first display panel includes a first substrate, and light-emitting units on a side of the first substrate away from the second display panel. The light-emitting units include first light-emitting units and second light-emitting units. One first light-emitting unit includes a first light-emitting layer, and a distance between the first light-emitting layer and the first substrate in the first direction is D1. One second light-emitting unit includes a second light-emitting layer, and a distance between the second light-emitting layer and the first substrate in the first direction is D2, where D1>D2. The second display panel includes a reflective surface on a side of the first substrate away from the light-emitting units.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: March 25, 2025
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventor: Mengmeng Xie
  • Patent number: 12260829
    Abstract: A data driving circuit of a display device is disclosed that includes a latch circuit to latch a data signal in response to a latch enable signal and to output a first signal, a level shifter to output a second signal obtained by changing a voltage level of the first signal, a digital-analog converter to output a third signal obtained by converting the second signal into an analog signal, an amplifier to output a fourth signal obtained by amplifying the third signal, a switch to output the fourth signal in a form of an image signal, in response to an output enable signal, and a signal generator to generate the latch enable signal and the output enable signal. The signal generator adjusts a start timing of the active duration of the latch enable signal, such that the active duration of the latch enable signal starts, after the inactive duration of the output enable signal starts.
    Type: Grant
    Filed: February 6, 2024
    Date of Patent: March 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoosung Kim, Hyunho Lim
  • Patent number: 12254153
    Abstract: A touch panel and a display apparatus are provided. The touch panel includes a first component region and a touch region, first-type touch electrode blocks, and m2 first connecting lines. First and second touch regions are respectively located at two sides of the first component region along a first direction. The first-type touch electrode blocks include first touch electrode blocks in the first touch region and second touch electrode blocks in the second touch region. m1 first touch electrode groups are arranged in the first touch region along a second direction. First connecting lines are respectively electrically connected to the first touch electrode groups and the second touch electrode blocks.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: March 18, 2025
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Qibing Wei, Peng Zhang
  • Patent number: 12254806
    Abstract: A pixel circuit in a display panel includes a drive transistor and a first transistor, a first terminal of the drive transistor is electrically connected to a power signal line, a first terminal of the first transistor is electrically connected to an initialization signal line; a second terminal of the first transistor is electrically connected to the drive transistor or a light-emitting element; drive modes of the display panel include an i-th drive mode and a j-th drive mode, and the i-th drive mode corresponds to an i-th drive frequency Fi and an i-th initialization signal Vrefi, the j-th drive mode corresponds to a j-th drive frequency Fj, a signal writing stage in the j-th drive mode corresponds to a j1-th initialization signal Vrefj1, and a light emission holding stage in the j-th drive mode corresponds to a j2-th initialization signal Vrefj2.
    Type: Grant
    Filed: December 1, 2023
    Date of Patent: March 18, 2025
    Assignee: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventor: Jujian Fu
  • Patent number: 12254807
    Abstract: A pixel circuit in a display panel includes a drive transistor, a first terminal of the drive transistor is electrically connected to a power signal line; and drive modes of the display panel comprise at least a first drive mode, a second drive mode, and a third drive mode, wherein the first drive mode corresponds to a first drive frequency F1 and a first power signal Vdd1, the second drive mode corresponds to a second drive frequency F2 and a second power signal Vdd2, and the third drive mode corresponds to a third drive frequency F3 and a third power signal Vdd3, wherein F 1 > F 2 > F 3 , F 2 - F 3 F 1 - F 3 ? ? "\[LeftBracketingBar]" V dd ? 2 - V dd ? 3 ? "\[RightBracketingBar]" ? "\[LeftBracketingBar]" V dd ? 1 - V dd ? 3 ? "\[RightBracketingBar]" .
    Type: Grant
    Filed: December 1, 2023
    Date of Patent: March 18, 2025
    Assignee: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventor: Jujian Fu
  • Patent number: 12254830
    Abstract: A pixel includes: a light emitting diode; a first transistor; a first capacitor connected between a first node and a gate electrode of the first transistor; a second transistor including a first electrode electrically connected to the gate electrode of the first transistor, a second electrode and a gate electrode which receives a first scan signal; and a third transistor including a first electrode electrically connected to the second electrode of the second transistor, a second electrode electrically connected to a third voltage line, and a gate electrode which receives a second scan signal. During an initialization period, an initialization voltage provided from the third voltage line is provided to the gate electrode of the first transistor through the third and second transistors, and, when the initialization period is terminated, at least one of the second transistor and the third transistor is turned off.
    Type: Grant
    Filed: November 28, 2023
    Date of Patent: March 18, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junhyun Park, Jangmi Kang, Minjae Jeong, Meehye Jung
  • Patent number: 12245479
    Abstract: A display panel includes a first initialization voltage line in the display area and configured to transmit a first initialization voltage, a second initialization voltage line in the display area and configured to transmit a second initialization voltage, a first transistor in a first pixel area of the display area and connected to a pixel electrode of a first light-emitting diode emitting light of a first color and the first initialization voltage line, and a second transistor in a second pixel area adjacent to the first pixel area, the second transistor being connected to a pixel electrode of a second light-emitting diode emitting light of a second color and the second initialization voltage line.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: March 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngjin Cho, Kyoungjin Park, Wonkyu Kwak, Joongsoo Moon
  • Patent number: 12236880
    Abstract: A pixel driving circuit is provided. The pixel driving circuit includes a light emission control circuit and a drive circuit. The light emission control circuit controls a potential of a control terminal of the drive circuit under the control of a coupled signal terminal, and the drive circuit drives a coupled light-emitting element to emit light based on the potential of the control terminal thereof. The drive circuit includes two drive transistors connected in parallel, and subthreshold swings of the two drive transistors are different.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: February 25, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Ran Li, Xueyan Tian, Hongwei Tian, Tuo Sun, Xiyu Zhao
  • Patent number: 12236847
    Abstract: The present disclosure relates to a display apparatus and a multi-screen display apparatus including the same. The display apparatus includes a substrate including a display area including a plurality of pixels disposed along a first direction and a second direction intersecting with the first direction, and a gate driving circuit including a plurality of stage circuit units respectively disposed at a plurality of horizontal lines of the display area to supply a scan signal to the plurality of pixels. Each of the plurality of stage circuit units includes a plurality of branch circuits supplying the scan signal to the plurality of pixels, and a plurality of circuit connection lines connected to the plurality of branch circuits and formed of a transparent conductive material.
    Type: Grant
    Filed: July 19, 2023
    Date of Patent: February 25, 2025
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Subin Kim, YoungIn Jang
  • Patent number: 12236849
    Abstract: A display device comprises a gate driver configured to receive a first gate driving voltage, configured to receive a second gate driving voltage that is greater than the first gate driving voltage, and configured to transmit a gate signal to a pixel, a data driver configured to transmit a data voltage to the pixel, and an electrostatic protection circuit configured to receive the first gate driving voltage and the data voltage, and including a first electrostatic diode including a first gate terminal connected to the first gate driving voltage, a first terminal connected to the first gate driving voltage, a second terminal connected to the data voltage, and a first lower gate terminal connected to a lower bias voltage.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: February 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junhyun Park, Youngwan Seo
  • Patent number: 12223131
    Abstract: A force sensing module is provided. The force sensing module includes: a first flexible circuit board, a substrate, and a second flexible circuit board stacked in sequence. The substrate includes a first surface and a second surface opposite to the first surface, and the first surface is provided with a first groove. A first force sensing resistor and a second force sensing resistor are disposed on a first side of the first flexible circuit board facing the first surface. A third force sensing resistor corresponding to the first force sensing resistor and a fourth force sensing resistor corresponding to the second force sensing resistor are disposed on a second side of the second flexible circuit board facing the second surface. The four resistors form a Wheatstone bridge structure. The force sensing module includes a detection circuit, configured to detect a differential voltage of the Wheatstone bridge structure.
    Type: Grant
    Filed: November 24, 2023
    Date of Patent: February 11, 2025
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Wei Xu
  • Patent number: 12223889
    Abstract: To reduce power consumption of a drive circuit for a display device. A drive circuit (10) for the display device includes a comparator (100), a PWM signal generation unit (200), and a drive unit (300). The comparator (100) is a comparator that starts comparison between a count number of pulses in an input clock signal and input comparison data in synchronization with a start signal, and includes a shift register (120) that is configured by a plurality of flip-flops in which the clock signal is input to a clock terminal and that is cascade-connected and shifts the start signal, and a selection unit (130) that selects one of outputs of the plurality of flip-flops constituting the shift register according to the comparison data and outputs the shifted start signal as a result of the comparison. The PWM signal generation unit (200) generates a PWM signal according to the result of the comparison. The drive unit (300) drives a light emitting element (11) based on the generated PWM signal.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: February 11, 2025
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Kouichi Hashikaki
  • Patent number: 12223146
    Abstract: A display panel is provided. The display panel includes a touch control structure. The touch control structure includes a plurality of first mesh electrodes and a plurality of second mesh electrodes. A respective one of the plurality of first mesh electrodes includes a plurality of first mesh blocks consecutively electrically connected along a first direction. A respective one of the plurality of second mesh electrodes includes a plurality of second mesh blocks consecutively electrically connected along a second direction. Two adjacent first mesh blocks of the plurality of first mesh blocks are electrically connected to each other through a respective first conductive bridge. The respective first conductive bridge includes a plurality of first single mesh lines spaced apart from each other, and in a layer different from the plurality of first mesh blocks and the plurality of second mesh blocks.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: February 11, 2025
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yang Zeng, Tianci Chen, Shun Zhang, Chang Luo, Yuanqi Zhang, Yi Zhang, Youngyik Ko, Sanghun Kang
  • Patent number: 12217683
    Abstract: Provided herein is a sub-pixel including first to seventh transistors, first and second capacitors, and a light emitting element, and a display device including the sub-pixel. A body terminal of the first transistor is connected to a first power line. In the sub-pixel and the display device including the sub-pixel in accordance with embodiments of the present disclosure, mitigation of the body effect may lead to an improvement in display quality.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Chul Goh, Sang Hyun Heo
  • Patent number: 12210690
    Abstract: A method of an optical navigation device, to be coupled to a computer device through a specific communication interface, includes: providing an optical sensor to sense and generate an optical navigation position related signal in response to a movement of the optical navigation device; detecting a moving speed of the movement of the optical navigation device; and, dynamically adjusting a transmission report rate of the optical navigation device, which is used to periodically transmit the optical navigation position related signal to the computer device, based on the detect moving speed.
    Type: Grant
    Filed: September 14, 2023
    Date of Patent: January 28, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: Tsung-Fa Wang
  • Patent number: 12211451
    Abstract: A pixel array and a display panel are provided in the disclosure. The pixel array includes multiple scan lines, multiple emission lines, multiple data lines, and multiple pixel units, where the multiple data lines are insulated from the plurality of scan lines and the multiple emission lines, each of the multiple pixel units includes a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, second pixel sub-units and/or third pixel sub-units in the same row are electrically coupled with the same scan line and the same emission line and first pixel sub-units in the same row are electrically coupled with another scan line and another emission line, and first pixel sub-units, and/or third pixel sub-units, and/or second pixel sub-units in the same column are electrically coupled with the same data line.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: January 28, 2025
    Assignee: HKC CORPORATION LIMITED
    Inventors: Mancheng Zhou, Xinghan Liu, Baohong Kang
  • Patent number: 12205543
    Abstract: Provided are a display panel and a display device. The display panel includes at least two display regions and a pixel circuit. The at least two display regions include a first display region and a second display region. The pixel circuit includes at least a first pixel circuit and a second pixel circuit, where the first pixel circuit is disposed in the first display region and the second pixel circuit is disposed in the second display region. The pixel circuit receives a bias adjustment signal including a first bias adjustment signal and a second bias adjustment signal, where when a refresh rate of the first display region is f1, the first pixel circuit receives the first bias adjustment signal, and when a refresh rate of the second display region is f2, the second pixel circuit receives the second bias adjustment signal.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: January 21, 2025
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventor: Jianfeng Xie
  • Patent number: 12198621
    Abstract: The present disclosure provides a pixel circuit, a driving method and a display device. The pixel circuit includes a first reset circuit and a driving circuit, the first reset circuit is respectively electrically connected to a first light emitting control line, a reset control line, a first reset voltage line and a first end of the driving circuit, and is configured to write a first reset voltage provided by the first reset voltage line into the first end of driving circuit under the control of a first light emitting control signal provided by the first light emitting control line and a reset control signal provided by the reset control line; the driving circuit is configured to connect the first end of the driving circuit and a second end of the driving circuit under the control of a potential of a control end of the driving circuit.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 14, 2025
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yao Huang, Tianyi Cheng