Patents Examined by Benjamin C. Lee
  • Patent number: 12217701
    Abstract: A data compensating circuit includes a stress data generating block which generates stress data for each pixel based on input image data or output image data, a memory control block which updates accumulated stress data for each pixel, a first compensating block which reads the accumulated stress data for each pixel from a first non-volatile memory device to generate afterimage compensation data for each pixel, a compensation data summing block which reads optical compensation data for each pixel from a second non-volatile memory device to generate luminance compensation data for each pixel by summing the afterimage compensation data for each pixel and the optical compensation data for each pixel, an internal memory device which stores the luminance compensation data for each pixel, and a second compensating block which generates the output image data by compensating for the input image data based on the luminance compensation data for each pixel.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Woong Park, Weonjun Choe
  • Patent number: 12217378
    Abstract: A method for an image-captured initialization of an array of devices, said method comprising the steps of: receiving a video stream featuring a plurality of end devices in a gaming station, wherein said end device renders at least one of a lighting, haptic, or air-blowing effect from a specific location within the gaming station; detecting the plurality of end devices by vision processing at least a frame of the gaming station stream; and positioning a virtual representation of the detected end devices on a digital canvas representing a user's physical space based on a tonal frequency-dependent light-emission from a frequency-defined end device.
    Type: Grant
    Filed: December 1, 2022
    Date of Patent: February 4, 2025
    Inventors: Matthew Ryan Gilg, Timothy Chia-Chieh Sun
  • Patent number: 12217694
    Abstract: A display device includes: a plurality of pixels connected to gate lines and data lines; a gate driver to supply a gate signal to the gate lines; and a data driver to supply a data signal to the data lines. The gate driver includes: a first transistor including a first active layer at a first layer; and a second transistor including a second active layer at a second layer on the first layer.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: February 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Keun Woo Kim, Mee Jae Kang, Doo Na Kim, Yun Jung Oh, Yong Su Lee, Jae Hwan Chu
  • Patent number: 12217665
    Abstract: A display device includes: a display panel including pixels, a data driving circuit, a scan driving circuit which drives a plurality of first scan lines and a plurality of second scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit to drive a first display area of the display panel at a first operating frequency and drive a second display area of the display panel at a second operating frequency lower than the first operating frequency while an operating mode is a multi-frequency mode. During the multi-frequency mode, first scan signals provided to first scan lines, which correspond to the second display area, of the plurality of first scan lines are maintained at inactive levels in predetermined frames, and second scan signals provided to the plurality of second scan lines transition to active levels at least twice in each of the predetermined frames.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Eun Sil Yun, Changnoh Yoon
  • Patent number: 12218145
    Abstract: A display panel includes a base substrate, a first transistor, and a second transistor. The first transistor and the second transistor are formed on the base substrate. The first transistor includes a first active layer, a first gate electrode, a first source electrode, and a first drain electrode. The first active layer includes silicon. The second transistor includes a second active layer, a second gate electrode, a second source electrode, and a second drain electrode. The second active layer includes oxide semiconductor. A length of a channel region of the first transistor is L1. Along a direction perpendicular to the base substrate, a distance between the first gate electrode and the first active layer is D1. A length of a channel region of the second transistor is L2. Along the direction perpendicular to the base substrate, a distance between the second gate electrode and the second active layer is D2.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: February 4, 2025
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Qingjun Lai, Yihua Zhu, Yong Yuan, Ping An, Zhaokeng Cao
  • Patent number: 12216872
    Abstract: An exemplary an access control device generally includes a keypad assembly, an antenna, and a controller. The keypad assembly includes a capacitive touch keypad matrix, and the antenna is substantially coplanar with the capacitive touch keypad matrix. The controller is connected with each of the keypad assembly and the antenna such that the controller is operable to receive access codes via each of the keypad assembly and the antenna.
    Type: Grant
    Filed: January 30, 2024
    Date of Patent: February 4, 2025
    Assignee: Schlage Lock Company LLC
    Inventors: Jenna Lopez, Maxwell Watson, Sukanya Ranganathan, Frank A. Nardelli
  • Patent number: 12211414
    Abstract: Embodiments of the disclosed subject matter provide a device that includes a full color display. A camera may be disposed below the full color display. A controller may modify a video signal applied to one or more sub-pixels of the full color display based on a predicted degradation of the one or more sub-pixels, such that the modification is updated by the controller based on luminance data for the one or more subpixels acquired by the camera.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: January 28, 2025
    Assignee: Universal Display Corporation
    Inventors: Michael Hack, Michael Stuart Weaver
  • Patent number: 12210704
    Abstract: The present invention provides a display panel including a display area and a terminal area adjacent to each other, the terminal area includes a driving chip area bonded with a driving chip, a plurality of touch leads are provided in the driving chip area, first ends of the plurality of touch leads are electrically connected to a plurality of touch electrodes in the display area, and a plurality of test pins is electrically connected to second ends of the plurality of touch leads and used for transmitting a test signal are also located in the driving chip area.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: January 28, 2025
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zuzhao Xu
  • Patent number: 12211437
    Abstract: Provided is a pixel circuit. In the pixel circuit, a data write circuit may transmit a data signal to a first node; a compensation circuit may adjust a potential of a second node and a potential of a third node based on a gate drive signal; a first reset circuit may transmit a first initial power supply signal to the third node; a drive circuit may transmit a drive signal to the second node based on the potential of the third node and a potential of the first node; and a second reset circuit may transmit a second initial power supply signal to a first electrode of a light-emitting element.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: January 28, 2025
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingwen Zhang, Yunsheng Xiao, Miao Wang
  • Patent number: 12211430
    Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: January 28, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junhyun Park, Hyeongseok Kim, Jangmi Kang, Minjae Jeong, Mukyung Jeon
  • Patent number: 12205516
    Abstract: The present application relates to light-emitting diode (LED) driver circuits, display devices, and display systems. An example LED driver circuit includes: a driver including a plurality of data channels; a controller electrically connected to the driver. The controller is configured to, in response to detecting that data in all the data channels is 0 in a predetermined time period, control all the data channels to be in a closed state. The predetermined time period is determined based on a duration of an external input signal input to the LED driver circuit.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: January 21, 2025
    Assignee: Chipone Technology (Beijing) Co., Ltd.
    Inventors: Hanru Zhang, Zhizheng Huang, Jingshuai Wang
  • Patent number: 12205554
    Abstract: A liquid crystal display apparatus has a three-TFT structure in which each of pixels includes a first liquid crystal capacitor including a first pixel electrode, a second liquid crystal capacitor including a second pixel electrode, a first TFT including a drain electrode connected to the first pixel electrode, a second TFT including a drain electrode connected to the second pixel electrode, and a buffer capacitor including a buffer capacitor electrode connected to the second pixel electrode via a third TFT. In the liquid crystal display apparatus, a configuration is adopted in which a gate scanning signal is independently supplied to a plurality of gate bus lines one by one, and a sub-gate-on pulse is substantially simultaneously applied to the third TFTs belonging to at least two pixel rows.
    Type: Grant
    Filed: April 8, 2024
    Date of Patent: January 21, 2025
    Assignee: Sharp Display Technology Corporation
    Inventor: Yoshihisa Takahashi
  • Patent number: 12198609
    Abstract: Provided are a display panel and a display device. The display panel includes a first region and a second region, a first driver circuit, a first driver circuit, a function component, a function hole and a virtual hole. The first region includes a pixel unit. The first driver circuit is located in the second region and includes a first drive signal output terminal, where the first drive signal output terminal is configured to provide a first drive signal for the pixel unit in the first region. The function component includes a first function layer, a second function layer and a preset dielectric layer located between the first function layer and the second function layer. The function hole penetrates through the preset dielectric layer and is configured to connect the first function layer to the second function layer. The virtual hole penetrates through the preset dielectric layer.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: January 14, 2025
    Assignee: Xiamen Tianma Display Technology Co., Ltd.
    Inventors: Jiaxiang Dai, Ping An
  • Patent number: 12198622
    Abstract: Provided are a display panel and a display device. The display panel includes a display area and pixel circuits. The display area includes a first display area and a second display area. The first display area is used as an optical element reservation area. The pixel circuits include a first pixel circuit and a second pixel circuit. The first display area includes minimum repeating units. One of the minimum repeating units includes first light-emitting elements of at least three different colors. Multiple first light-emitting elements include a light-emitting element of a first color, a light-emitting element of a second color, and a light-emitting element of a third color. The first pixel circuit is configured to drive first light-emitting elements to emit light. In at least one minimum repeating unit, at least two first light-emitting elements of at least one same color are electrically connected to a same first pixel circuit.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: January 14, 2025
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yangzhao Ma, Hao Dai
  • Patent number: 12175919
    Abstract: The present teaching relates to method, system, medium, and implementations for refreshing an LED display. A signal signaling a timing for refreshing the LED display is received. In response to the signal, a bit-based image block is retrieved from one of a pair of alternate buffers pointed to by a read buffer pointer, which is then toggled to point at the other of the pair of alternate buffers. The bits in the bit-based image block are sequenced in accordance with a connection pattern in which lights of the LED display are connected to generate sequenced image bits for the bit-based image block and control signals are generated for refreshing the lights of the LED display based on the sequenced image bits. The alights of the LED display re the refreshed based on the control signals.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 24, 2024
    Assignee: ALPHASCALE TECHNOLOGIES, INC.
    Inventors: Qi Dong, Minglang Wang, Gufeng Xi
  • Patent number: 12170058
    Abstract: The present disclosure relates to a signal processing device and an image display apparatus including the same. The image display apparatus includes a display, an image receiver configured to receive an input image, and a signal processing device configured to perform signal processing of the input image from the image receiver and to output image data to the display, wherein, when a luminance deviation of a first input image is greater than a luminance deviation of a second input image, the signal processing device controls a luminance adjustment change rate of a first input image to be less than a luminance adjustment change rate of the second input image. Accordingly, contrast of an image displayed on the display is improved.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: December 17, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Jungwook Lee, Jongmin Park
  • Patent number: 12165609
    Abstract: The present application provides a display panel in which transistors in an input pull-up module, a stage transfer output module, and an output pull-up module are provided as P-type low temperature polysilicon thin film transistors, and a transistor in an output pull-down module is provided as an N-type metal oxide thin film transistor.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: December 10, 2024
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Haiming Cao, Chao Tian, Yanqing Guan, Fei Ai, Guanghui Liu, Zhifu Li
  • Patent number: 12165556
    Abstract: A display device includes a display part, a degradation compensator that generates a first compensated grayscale value by compensating for a first grayscale value corresponding to a first pixel, and generates a second compensated grayscale value by compensating for a second grayscale value corresponding to a second pixel, and a data driver that generates a first data signal based on the first compensated grayscale value to supply the first data signal to the first pixel, and generates a second data signal based on the second compensated grayscale value to supply the second data signal to the second pixel. A second degradation curve is defined by a first degradation coefficient corresponding to a first degradation curve, and a second degradation coefficient corresponding to a first estimated degradation curve for the light conversion particles of a second color calculated by applying the first degradation curve.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: December 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok Ha Hong, Joon Chul Goh, Dong Joon Kwag, Hyung Jin Kim, Ji Eun Park, Jae Sung Bae, Young Soo Hwang
  • Patent number: 12150369
    Abstract: The present disclosure provides a display panel, a display device, a test method, and a crack detection method. The display panel includes: a base substrate including a display area and a peripheral area; a plurality of sub-pixels in the display area; a plurality of data signal lines in the display area and electrically connected to the plurality of sub-pixels; a plurality of signal transmission lines in the peripheral area and electrically connected to the plurality of data signal lines; a plurality of multiplexers in the peripheral area; and a first test circuit on a side of the plurality of multiplexers away from the plurality of sub-pixels. The first test circuit includes a plurality of test components, each of at least a portion of the plurality of test components being electrically connected to at least two multiplexers.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: November 19, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Linhong Han, Meng Zhang, Yi Zhang, Pengfei Yu, Shikai Qin
  • Patent number: 12141397
    Abstract: An electronic device is provided. The electronic device includes a display, a display driver integrated circuit (IC) (DDI) configured to output a synchronization signal corresponding to update of a screen to be displayed on the display, and a touch circuit including a touch sensor and a touch sensor IC, wherein the touch sensor IC is configured to when a synchronization signal corresponding to a first display update frequency is received from the DDI, apply a first driving signal to the touch sensor on the basis of an interval in which the synchronization signal is applied, and when a synchronization signal corresponding to a second display update frequency is received from the DDI, apply a second driving signal to the touch sensor during a designated active interval.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: November 12, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seunghoon Ko, Bongjun Ko