Patents by Inventor Cheol Song LEE

Cheol Song LEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240130194
    Abstract: A display device including: a base layer; a circuit layer disposed on the base layer; and an element layer disposed on the circuit layer, the element layer including a light emitting element and a light receiving element, wherein the circuit layer includes: a pixel drive circuit connected to the light emitting element; a sensor drive circuit connected to the light receiving element; a data wire connected to the pixel drive circuit; a readout wire connected to the sensor drive circuit; and a shielding electrode wire overlapping the readout wire on a plane.
    Type: Application
    Filed: July 26, 2023
    Publication date: April 18, 2024
    Inventors: HEERIM SONG, MUKYUNG JEON, CHEOL-GON LEE
  • Publication number: 20240126389
    Abstract: Disclosed is a display device including a plurality of touch sensing groups. Each of the plurality of touch sensing groups includes a plurality of write scan circuits, a plurality of pixels connected to the plurality of write scan circuits, a plurality of sensors connected to the plurality of write scan circuits, a plurality of first switching elements switching connections between the plurality of sensors and the plurality of write scan circuits, a touch sensing circuit connected to touch sensors connected one of the plurality of write scan circuits, and a second switching element switching a connection between the touch sensing circuit and the touch sensors.
    Type: Application
    Filed: August 16, 2023
    Publication date: April 18, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: HEERIM SONG, CHEOL-GON LEE, MUKYUNG JEON
  • Publication number: 20240112632
    Abstract: A display device includes a plurality of pixels, each of which includes a light emitting element and a pixel driving circuit and a plurality of sensors, each of which includes a light receiving element and a sensor driving circuit. A sensor driving circuit included in at least one of sensors includes a reset transistor configured to output a reset signal to a first sensing node in response to a reset control signal, an amplification transistor connected to first and second sensing nodes and configured to receive a sensor driving voltage, a first output transistor connected between the second sensing node and a readout line and configured to receive a first output control signal, and a second output transistor connected between the second sensing node and the readout line and configured to receive a second output control signal.
    Type: Application
    Filed: August 16, 2023
    Publication date: April 4, 2024
    Inventors: HEERIM SONG, CHEOL-GON LEE, MUKYUNG JEON
  • Publication number: 20240111381
    Abstract: A display device includes: a pixel including a pixel driving circuit and a light emitting element; a sensor including a sensor driving circuit and a sensing element; a first driver to output a first scan signal to the pixel driving circuit; and a second driver to output a second scan signal to the sensor driving circuit. The first driver is to operate at a first operating frequency, and the second driver is to operate at a second operating frequency or a third operating frequency.
    Type: Application
    Filed: July 28, 2023
    Publication date: April 4, 2024
    Inventors: HEERIM SONG, CHEOL-GON LEE, MUKYUNG JEON
  • Publication number: 20240056026
    Abstract: Proposed is a solar power leveling system, more particularly, a solar power leveling system via string-based power compensation, wherein outputs between strings are equalized by charging or discharging using a power compensation device so that output through solar power generation is maximized with a simple device configuration, and when there is reduction in output of a plurality of strings, compensation power for maximizing the total string output is calculated to achieve power compensation, whereby the power compensation device performs power compensation with a single discharging part and maximizes the total power generation amount of the strings connected to each other in parallel.
    Type: Application
    Filed: December 22, 2020
    Publication date: February 15, 2024
    Inventors: Ki Taek SONG, Cheol Song LEE, Kyung Rok KIM, Jun Woo KIM
  • Patent number: 11831275
    Abstract: The present disclosure relates to an apparatus for diagnosing a state of a photovoltaic device, a building Integrated Photovoltaics (BIPV) device, etc., and more particularly to an apparatus for diagnosing photovoltaic power generation, which diagnoses a state of the specific photovoltaic device by comparing the difference in power generation between grouped photovoltaic devices through analysis of power generation for the same period in the past through machine learning, etc., wherein the apparatus processes power generation information, which is collected from the photovoltaic devices, based on failure history and maintenance and repair information of each photovoltaic device and performs precise grouping by minimizing error information regarding a power generation trend based on information such as regional weather information and environment information for a region where each photovoltaic device is located, so that a power generation trend can be analyzed with improved accuracy of analysis of state.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 28, 2023
    Assignee: DAEEUN CO. LTD.
    Inventors: Ki Taek Song, Cheol Song Lee, Kyung Rok Kim
  • Publication number: 20220149784
    Abstract: The present disclosure relates to an apparatus for diagnosing a state of a photovoltaic device, a building Integrated Photovoltaics (BIPV) device, etc., and more particularly to an apparatus for diagnosing photovoltaic power generation, which diagnoses a state of the specific photovoltaic device by comparing the difference in power generation between grouped photovoltaic devices through analysis of power generation for the same period in the past through machine learning, etc., wherein the apparatus processes power generation information, which is collected from the photovoltaic devices, based on failure history and maintenance and repair information of each photovoltaic device and performs precise grouping by minimizing error information regarding a power generation trend based on information such as regional weather information and environment information for a region where each photovoltaic device is located, so that a power generation trend can be analyzed with improved accuracy of analysis of state.
    Type: Application
    Filed: December 9, 2019
    Publication date: May 12, 2022
    Inventors: Ki Taek SONG, Cheol Song LEE, Kyung Rok KIM