Patents Examined by Michael Faragalla
  • Patent number: 11468859
    Abstract: Disclosed are an array substrate drive circuit, a display module and a display device. The array substrate drive circuit includes: a signal driver configured for receiving a test signal, and generating a drive signal for driving a pixel array according to the test signal; and a signal isolator configured for dividing the drive signal into an even-numbered row drive signal and an odd-numbered row drive signal for driving the pixel array according to a preset control signal to drive the pixel array in rows. Since adjacent metal conductive layers will not output drive signals at the same time, even if the adjacent metal conductive layers are short-circuited, it can be detected during the test, thus improving the yield of the display panel.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: October 11, 2022
    Assignees: BEIHAI HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Chiayang Cheng, Wei Li
  • Patent number: 11468852
    Abstract: An organic light emitting display device includes a substrate, a light emitting diode, a first transistor controlling a driving current of the light emitting diode, a second transistor including a second drain electrode connected to a first source electrode of the first transistor, a second gate electrode, a second channel overlapped with the second gate electrode when viewed in a plan view, a second source electrode facing the second drain electrode with the second channel interposed therebetween, and a lower gate electrode, and a plurality of driving voltage lines transmitting a first driving voltage. The lower gate electrode of the second transistor is overlapped with the second channel when viewed in a plan view, and the lower gate electrode is electrically connected to a corresponding driving voltage line among the driving voltage lines.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: October 11, 2022
    Inventors: Seongbaik Chu, Eungtaek Kim, Seongmin Wang, Young-in Hwang
  • Patent number: 11460979
    Abstract: According to an embodiment disclosed in the specification, a display device may include a microphone, a display displaying a screen including a plurality of layers, a memory storing a plurality of application programs, and at least one processor displaying a first user interface (UI) for interacting with a user on a first layer among the plurality of layers, displaying a second UI for displaying information obtained by performing the interaction on a second layer among the plurality of layers, and displaying an image at least partly overlapping with the first UI and the second UI on a third layer among the plurality of layers.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 4, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jibum Moon, Jina Kwon, Kyerim Lee
  • Patent number: 11462176
    Abstract: Embodiments relate to a display device including bonding pads on a display element where data signals for a plurality of columns of pixels are provided to a same bonding pad in a time-divisional manner. Each of the bonding pads is connected to a plurality of demultiplexer circuits for sampling data signals at the bonding pad, storing the data signals, and transferring the sample data signals to corresponding columns of pixels. Each column of pixels includes a plurality of columns of subpixels, and a period during which a demultiplexer circuit samples the bonding pad for a column of subpixels of a first color may at least partially overlap with a period during which the demultiplexer circuit transfers previously sampled data signals to a column of subpixels of a second color.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 4, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Wenhao Qiao
  • Patent number: 11462177
    Abstract: A display device includes a display panel having a plurality of sub-pixels to display an image; a data driver for supplying image data to the plurality of sub-pixels; a gate driver for supplying a gate signal to the plurality of sub-pixels; a controller configured to convert a driving frequency of each of the data driver and the gate driver in a high frame rate mode; and a gamma voltage generator for generating gamma voltages respectively based on each driving frequency, wherein the controller is configured to generate a horizontal synchronization signal based on the driving frequency in the high frame rate mode. Accordingly, even when the driving frequency conversion occurs, image quality levels corresponding to various driving frequencies respectively may be kept uniform by applying the same operation duration to the various driving frequencies.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: October 4, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Sangyun Han, Yeongseok Choe, Joonmo Yang
  • Patent number: 11462166
    Abstract: A display apparatus includes first to third demultiplexer circuits respectively providing a data signal, supplied from a data driver, to three data lines. Each of the first to third demultiplexer circuits includes a switching unit providing the data signal to a corresponding data line of the three data lines on the basis of a voltage of a corresponding control line of first to third control lines, a voltage controller controlling the voltage of the corresponding control line in response to a corresponding time division control signal of first to third time division control signals and a corresponding auxiliary signal of first to third auxiliary signals which partially overlap the first to third time division control signals respectively, and a voltage discharger discharging the voltage of the corresponding control line.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 4, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Yeonwoo Shin, JungHyun Lee, Yewon Hong
  • Patent number: 11462190
    Abstract: A control circuit, a liquid crystal display drive module, and a liquid crystal display apparatus are disclosed. The control circuit includes: a first input end (101) and a second input end (102) that separately receive different external power source signals, and the control circuit sequentially controls the first input end (101) and the second input end (102) to input a power source signal to the drive chip, and sequentially controls the second input end (102) and the first input end (101) to power off.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: October 4, 2022
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Liang Wen
  • Patent number: 11460887
    Abstract: A display device and a terminal device are disclosed. The display device includes a main body and a cover body rotatably connected to the main body, the main body includes a first display screen on a side, close to the cover body, of the main body, the cover body is provided with an accommodating cavity penetrating through the cover body in a direction perpendicular to the first display screen, the cover body includes a second display screen in the accommodating cavity, the second display screen is stacked on the first display screen in the direction perpendicular to the first display screen, and the second display screen is a transparent display screen.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 4, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Liyu Fang, Xiuyun Chen, Lingyu Sun, Fei Liang, Jingjun Du, Tingxiu Hou, Peng Zhong, Jian Zhao
  • Patent number: 11450269
    Abstract: The present disclosure relates to a display device and a compensation method and more particularly to a method for sensing mobility of a driving TFT of subpixels while an image is being driven by a display device, and a display device performing the method. A sensing method for compensation, which is performed while a display device is being driven, includes charging, in an Nth frame period, a node M of a shift register A connected to a jth gate line of a display panel. The method also includes charging, in the Nth frame period, a node M of a shift register B connected to a Kth gate line of the display panel. The method further includes sensing, in a next blank period to the Nth frame period, subpixels connected to the jth gate line and sensing subpixels connected to the Kth gate line in the blank period.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: September 20, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Lokdam Baek
  • Patent number: 11443691
    Abstract: Disclosed is an electroluminescent display device including a display panel, a power supply unit, and a data driver. The display panel includes a subpixel for displaying an image. The power supply unit supplies a positive voltage and a negative voltage to the display panel. The data driver supplies a first initialization voltage and a second initialization voltage to the display panel, as well as a data voltage, and at least one of the first initialization voltage and the second initialization voltage is varied.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: September 13, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Minsu Cho, Jaehyuk Oh
  • Patent number: 11443678
    Abstract: Systems and methods are provided for a display device that includes a display unit. The display unit includes scan lines and pixels coupled to the scan lines. A timing controller operates in a first mode and a second mode and generates a start signal, based on a vertical synchronization signal provided from the outside. A scan driver generates a scan signal, based on the start signal, and sequentially provides the scan signal to the scan lines. The timing controller generates the start signal immediately after a pulse of the vertical synchronization signal is applied in the first mode, and generates the start signal before a pulse the vertical synchronization signal is applied in the second mode.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Won Park, Chae Han Hyun
  • Patent number: 11437288
    Abstract: A display device includes a substrate, a light-emitting element, and a transistor. The substrate has a top surface. The light-emitting element is disposed on the substrate, and includes a first electrode and a second electrode. The transistor is disposed on the substrate and electrically connected to the light-emitting element. The transistor includes a gate electrode and a semiconductor layer. The semiconductor layer includes an overlapping portion overlapped with the gate electrode. The first electrode and the second electrode of the light-emitting element do not overlap with the overlapping portion along a direction perpendicular to the top surface of the substrate.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: September 6, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Tung-Kai Liu, Tsau-Hua Hsieh, Wei-Cheng Chu, Chun-Hsien Lin, Chandra Lius, Ting-Kai Hung, Kuan-Feng Lee, Ming-Chang Lin, Tzu-Min Yan, Hui-Chieh Wang
  • Patent number: 11430388
    Abstract: Provided is a display panel including n pixel sets. Each pixel set includes 2m pixel rows arranged along a first direction, where n and m are positive integers. Each pixel row includes pixel circuits arranged along a second direction, and the second direction intersects with the first direction. Each pixel circuit includes: a driving transistor; a first reset module configured to transmit, in response to a first scan signal provided by a first scan signal line, a first reset signal provided by a first reset signal line to a gate electrode of the driving transistor, the first reset signal including alternating high and low levels; and a second reset module configured to transmit, in response to a second scan signal provided by a second scan signal line, a second reset signal provided by a second reset signal line to an anode of an organic light-emitting element.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: August 30, 2022
    Assignee: WUHAN TIANMA MICRO ELECTRONICS CO., LTD.
    Inventors: Baonan Wang, Xin Li, Dongliang Dun, Zhiqiang Xia
  • Patent number: 11430368
    Abstract: Disclosed herein are a data driving device and a display device using the same. The data driving device includes a selector for sequentially selecting pieces of gamma reference data input from banks in the order of a first color, a second color, and a third color, and a voltage output part for converting the pieces of gamma reference data for each color, which is sequentially input, into gamma reference voltages.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: August 30, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Dae Seok Oh, Yong Won Jo
  • Patent number: 11422609
    Abstract: An electronic device and a method of operating an electronic device are provided. The electronic device includes a display; a motion sensor; and a processor, wherein the processor is configured to determine a first state associated with a user using the motion sensor while performing a call mode; if a predefined state is detected from the first state, configure an algorithm for determining a second state, based on the first state; determine the second state using the motion sensor, based on the configured algorithm; and control the operation of the display, based on a result of determining the second state.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 23, 2022
    Inventors: Shinyoung Na, Wonhee Lee, Kyusung Kim, Jongjin Kim, Yoomi Tak, Sangmin Hwang
  • Patent number: 11422651
    Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: August 23, 2022
    Assignee: Japan Display Inc.
    Inventors: Yoshiro Aoki, Takashi Nakamura, Masahiro Tada, Hirotaka Hayashi, Makoto Shibusawa, Yutaka Umeda, Miyuki Ishikawa
  • Patent number: 11416101
    Abstract: Disclosed is an electronic device that includes a housing including a first plate facing a first direction, the first plate including a fingerprint sensing area, a second plate facing a second direction opposite to the first direction, and a side member interposed between the first and second plates, a touch screen display interposed between the first and second plates and having at least a portion exposed through the first plate of the housing, a fingerprint sensor interposed between the touch screen display and the second plate, and a processor connected to the fingerprint sensor. The processor may determine whether the fingerprint sensing area is contaminated and determine whether to register a fingerprint image captured by the fingerprint sensor based on whether the fingerprint sensing area is contaminated. In addition, it is possible to implement other various embodiment understood through the disclosure.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: August 16, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yunjang Jin, Suna Kim, Kemsuk Seo, Bongjae Rhee, Seyoung Jang, Chihyun Cho
  • Patent number: 11417270
    Abstract: An organic light-emitting diode (OLED) display screen includes: a first area provided with a plurality of first light-emitting components; a second area provided with a plurality of second light-emitting components; and a driving element group electrically connected to the first light-emitting components and the second light-emitting components to drive the first light-emitting components and the second light-emitting components to emit light; wherein the driving element group is disposed on an area other than the second area on the display screen and disposed at least in the first area.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: August 16, 2022
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Qingfang Bian
  • Patent number: 11402943
    Abstract: An input sensing unit may include the following elements: a first sensing electrode including first sensors and a first connector coupling the first sensors; a second sensing electrode including second sensors and a second connector coupling the second sensors; a first sensing line including first sensing line parts and a third connector coupling the first sensing line parts; a second sensing line; and an insulating layer including a first insulating side and a second insulating side opposite the first insulating side. The first sensing line parts may overlap the first sensors and may be disposed on the first insulating side. The second sensing line may overlap the second sensors and may be disposed on the first insulating side. The first sensors may be disposed on the second insulating side. The second sensors may be disposed on the second insulating side.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 2, 2022
    Inventors: Hyun Wook Cho, Tae Joon Kim, Eun Sol Seo, Eung Kwan Lee, Jae Woo Choi
  • Patent number: 11372488
    Abstract: An input/output device includes a first sensor electrode and a second sensor electrode. In addition, the input/output device includes a first electrode and a second electrode which are electrodes for a display element, and a substrate sandwiched between the first sensor electrode and the second sensor electrode. The second sensor electrode is formed concurrently with the first electrode using the same material. The input/output device sensors a change in capacitance of a capacitor formed between the first sensor electrode and the second sensor electrode. Furthermore, a third sensor electrode to which a floating potential is applied may be provided to overlap with the first electrode. In the input/output device, either a liquid crystal element or a light-emitting element may be used, or both the liquid crystal element and the light-emitting element may be used.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: June 28, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Shunpei Yamazaki