Patents Examined by Sanghyuk Park
  • Patent number: 11898965
    Abstract: An inspection apparatus for a display module includes a seat part in which a first recess part including a bottom surface and a side surface extending from the bottom surface is defined, and an inspection part including an inspection connector. The seat part includes a support part having a certain stiffness and located on the bottom surface and a variable part connecting the support part and the side surface. The variable part has a certain elasticity or a portion of the variable part penetrates into the side surface.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: February 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seongmo Hwang, Jeong-Hwan Shin
  • Patent number: 11900893
    Abstract: A driver circuit which includes an output circuit and a control circuit coupled to the output circuit. The driver circuit includes a pull-up transistor with a silicon semiconductor layer. The control circuit includes a first transistor with an oxide semiconductor layer.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: February 13, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: Sheng-Feng Huang, Akihiro Iwatsu, Cheng-Min Wu, Kuanfeng Lee
  • Patent number: 11892639
    Abstract: A near-eye display includes a semiconductor substrate that has a first curved surface and a second curved surface opposite to each other, and a plurality of luminous pixels formed over the first curved surface of the semiconductor substrate. The luminous pixels cooperatively form a display area of the near-eye display. The second curved surface of the semiconductor substrate is formed with a plurality of indentations at a portion that corresponds in position to the display area.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: February 6, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jheng-Hong Jiang, Shing-Huang Wu, Chia-Wei Liu
  • Patent number: 11893950
    Abstract: It is an object to provide a display device which can favorably display a image without delayed or distorted signals. The display device includes a first gate driver and a second gate driver. The first gate driver and the second gate driver each include a plurality of flip flop circuits and a plurality of transfer signal generation circuits. Both the flip flop circuit and the transfer signal generation circuit are circuits which output a signal inputted to a first input terminal with a half clock cycle delay. In addition, an output terminal of the transfer signal generation circuit is directly connected to a first input terminal of the flip flop circuit in the next stage. Therefore, delay and distortion of the signal which is inputted from the transfer signal generation circuit to the flip flop circuit can be reduced.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: February 6, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 11895443
    Abstract: A projector includes: an electro-optical panel including a plurality of pixels; an optical-path shift element configured to change an optical path of light emitted from the plurality of pixels; and an image processing circuit configured to, in a unit period, supply an image signal to the plurality of pixels in an order, the unit period being included in one frame period for displaying an image of one frame indicated by an input image signal, the image signal corresponding to the plurality of pixels and being generated on a basis of the input image signal, in which the image processing circuit includes an adjustment circuit configured to adjust a response velocity of the plurality of pixels when the image displayed by the electro-optical panel is switched, on a basis of an order of supply of the image signal or of a position of a pixel at the electro-optical panel.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: February 6, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toru Aoki
  • Patent number: 11875720
    Abstract: A display device includes a display panel and the display panel includes a pixel. The pixel includes a light emitting unit including at least one light emitting element, a driving transistor providing a driving current corresponding to a data signal to the light emitting unit, and a first transistor electrically connected between both ends of the light emitting unit. A driver provides the data signal to the pixel and provides a duty control signal to the first transistor. The driver varies a voltage level of the data signal in a first grayscale section in which a grayscale corresponding to the data signal is greater than or equal to a reference grayscale, and varies a duty ratio of the duty control signal in a second grayscale section in which the grayscale is less than the reference grayscale.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gwang Teak Lee, Tae Gon Im
  • Patent number: 11862121
    Abstract: A liquid crystal apparatus includes a liquid crystal layer, a pixel electrode provided in a display region and configured to be supplied with an image signal at a first frequency, and a first electrode provided in a region outside the display region and configured to be alternately supplied with a positive polarity potential with a potential higher than a predetermined potential and a negative polarity potential with a potential lower than the predetermined potential at a second frequency lower than the first frequency such that a positive polarity period in which the positive polarity potential is supplied and a negative polarity period in which the negative polarity potential is supplied have a same length.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 2, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ken Shimada, Hiroyuki Oikawa, Kiyoshi Hara
  • Patent number: 11847974
    Abstract: A display panel sets a focus area per frame, based on focus area setting information and focus area reference line information received from the outside, control the number of gate lines simultaneously driven according to the focus area, and display a rendered image per focus area, thereby preventing the quality degradation of the image perceived by the user and increasing the frame rate of the display panel, and enhancing the quality of the virtual reality experience provided by the virtual reality device.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: December 19, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyungjin Jang, HyeonSik Kim, UnSang Yu, Kwangdug Choi, JinBong Chung, Sunkyung Shin, Sojung Jung, Beom-Jin Kim, Bongchoon Kwak
  • Patent number: 11842671
    Abstract: A video display unit includes a display panel with gate drivers and source drivers. Each of the source drivers receives an encoded analog signal representing a video stream over a transmission medium and decodes the signal to produce samples for output to the display. Gate driver control signals synchronize the gate drivers with the source drivers. The source drivers are integrated with the display panel glass in part or in whole. Amplifiers and level shifters of each source driver are implemented on the panel glass and the collector and decoder are not. Or, the amplifiers, shifters and collector are implemented on the panel glass and the decoder is not. Or, the amplifiers, shifters, collector and decoder of each source driver are implemented on the panel glass. The source drivers may drive a display of a mobile device. Thin-film transistors are used to implement the source drivers on glass.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: December 12, 2023
    Assignee: HYPHY USA INC.
    Inventor: Alex Henzen
  • Patent number: 11830417
    Abstract: A display device includes: a pixel unit including a plurality of pixels; a data driver configured to supply a data voltage to the pixels through data lines based on a source output enable signal; and a reference voltage controller configured to supply a reference voltage to the pixels through reference voltage lines, wherein each of the pixels includes a light emitting element between a first power source line and a second power source line, and wherein the reference voltage controller is configured to compensate for the reference voltage based on the source output enable signal, and to supply a compensated reference voltage to an anode electrode of the light emitting element.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: November 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Gon Im, Jong Jae Lee, Dae Gwang Jang
  • Patent number: 11830443
    Abstract: The present disclosure relates to display device, display panel, and display driving method.
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: November 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Nakyoon Kim, ChangHoon Jeon, Hongsoon Kim
  • Patent number: 11822422
    Abstract: One embodiment is a remote display system. Embodiments include a liquid-crystal display (“LCD”), an outer surface that forms a gap between the outer surface and the LCD, a light sensor disposed within the gap and covering a portion of the LCD, and a flexible printed circuit board (“PCB”) that couples the light sensor to a server.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 21, 2023
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventor: Douglas J. Barrett
  • Patent number: 11804155
    Abstract: A stacked display device and a control method thereof are provided. The stacked display device includes a display including a plurality of display panels, and a processor processing a layer image for providing an image to the display, wherein the display includes a backlight irradiating a light, a first panel including a lens for diffusing the light irradiated from the backlight, and for displaying an image of a single color, a second panel stacked on the first panel, and including a color filter for displaying a color image, and a third panel stacked on the second panel, and for displaying an image of a single color.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: October 31, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyungmin Lim, Jaesung Lee, Bora Jin, Seyong Kwon, Daeyeong Kim, Sunil Lee, Kangwon Jeon
  • Patent number: 11804157
    Abstract: An electroluminescent display apparatus can include a display panel including the one or more subpixels connected to a data line, a gate line, and a low-level power line. The display apparatus can further include a comparator connected to the one or more subpixels through the data line and the low-level power line to compare a first input voltage from the data line with a second input voltage from the low-level power line to generate a comparison output. The first input voltage is a reference voltage, and the second input voltage is a voltage of a specific node of the one or more subpixels capable of being shifted from an initialization voltage.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: October 31, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sun Yoon Kim, Jin Hyun Jung, Chang Woo Lee, Hyun Wook Kim
  • Patent number: 11804174
    Abstract: Disclosed are a display panel, a driving circuit, and a driving method. The driving circuit includes multiple sub-pixels. For each sub-pixel, the sub-pixel includes: a light-emitting element; a pre-charging unit; a driving unit; and a detection unit. In condition of a detection operation being performed, the pre-charging unit is configured to receive the data driving signal, the driving unit is configured to generate a detection driving current, and the detection unit is configured to detect the detection driving current, such that the display panel determines and compensate a compensation signal; in condition of a display operation being performed, the pre-charging unit is configured to receive the compensated data driving signal, and the driving unit is configured to generate a display driving current to drive the light-emitting element to emit light.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 31, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zeyao Li, Rongrong Li
  • Patent number: 11798505
    Abstract: A display device includes a plurality of divided pixels, each of which comprising a reflective electrode, a counter electrode provided so as to face the reflective electrode, and a holding unit configured to hold a potential corresponding to an expression of a gradation, and an inorganic light emitter provided on a side of the counter electrode opposite to a side of the counter electrode facing the reflective electrode, and configured to emit light toward the divided pixel.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: October 24, 2023
    Assignee: Japan Display Inc.
    Inventors: Akihiro Ogawa, Masanobu Ikeda, Susumu Kimura
  • Patent number: 11790848
    Abstract: An electroluminescent display apparatus may include: a display panel including a pixel; a data voltage supply circuit configured to supply a sensing data voltage to the pixel in a sensing period within a vertical blank period of a first frame, to supply a recovery data voltage to the pixel in a recovery period following the sensing period, and to supply a display data voltage to the pixel in a vertical active period of a second frame following the first frame; and a sensing circuit configured to sense an electrical characteristic of the pixel based on the sensing data voltage in the sensing period within the vertical blank period of the first frame. A level of the display data voltage to be supplied to the pixel in the vertical active period of the second frame may be determined based on a length of the vertical blank period of the first frame.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: October 17, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Joon Min Park
  • Patent number: 11790864
    Abstract: The present application provides a display panel and a driving method thereof. The display panel includes an array substrate with a terminal portion and a color filter substrate with a common electrode layer. The display panel further includes a first detection terminal, a second detection terminal arranged away from the terminal portion, first electrical connection wires, and a second electrical connection wire. Both the first detection terminal and the second detection terminal are electrically connected to the common electrode layer. The first detection terminal and the second detection terminal are respectively electrically connected to the terminal portion through corresponding first electrical connection wires. The first detection terminal and the second detection terminal are electrically connected through the second electrical connection wire.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: October 17, 2023
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Wu He
  • Patent number: 11774759
    Abstract: The present disclosure describes systems and methods for improving binocular vision, which generate a virtual image moving between two different depths to stimulate and then strengthen the weaker/abnormal eye of the viewer to eventually improve or even restore his/her binocular vision based on the viewer's eye information. The system comprises an eye tracking module and a virtual image module. The eye tracking module is configured to provide eye information of the viewer. The virtual image module configured to display a first virtual object by projecting multiple normal light signals to a viewer's first eye to form a normal image and corresponding multiple adjusted light signals to a viewers second eye to form an adjusted image.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 3, 2023
    Assignee: HES IP HOLDINGS, LLC
    Inventors: Yung-Chin Hsiao, Yin Chang, Jiunn-Yiing Lai
  • Patent number: 11776499
    Abstract: According to one embodiment, a display device includes a display panel including a plurality of pixels arranged in a non-rectangular display area, and a display controller configured to display images in the display area. An opening portion of each of pixels disposed at an edge portion of the display area is light-shielded at an area ratio according to a shape of the display area.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: October 3, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Yuta Haga, Kazunari Tomizawa