Patents by Inventor Nahyeon CHA

Nahyeon CHA 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: 20250232726
    Abstract: A gate signal masking circuit includes a first switching element including a control electrode connected to a masking control node, a first electrode connected to a first node and a second electrode connected to a control node, a second switching element including a control electrode connected to a second node, a first electrode receiving a first power and a second electrode connected to an intermediate node, a third switching element receiving an enable signal and connected to the intermediate node and a second intermediate node, a fourth switching element receiving the enable signal and connected to the second intermediate node and a third intermediate node, a fifth switching element connected to a third node and the third intermediate node and receiving a second power and a floating switching element receiving a floating control signal and connected to the masking control node and the third intermediate node.
    Type: Application
    Filed: December 3, 2024
    Publication date: July 17, 2025
    Inventors: NAHYEON CHA, KYUNGHO KIM
  • Publication number: 20250232731
    Abstract: A gate driver includes first to nth stages. A kth stage among the first to nth stages includes a first transistor including a second terminal electrically connected to a first control node, a fifth transistor including a gate electrically connected to an inverting control node, a sixth transistor including a gate electrically connected to a second control node, a fourth transistor including a gate which receives a low gate voltage, a first terminal electrically connected to a first control node, a second terminal electrically connected to a second control node, and a back gate, and a seventh transistor including a gate which receives a voltage of the inverting control node of a k+1th stage, a first terminal which receives a voltage of the first control node or the second control node of a k-1th stage, and a second terminal electrically connected to the back gate of the fourth transistor.
    Type: Application
    Filed: December 12, 2024
    Publication date: July 17, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: NAHYEON CHA, KYUNGHO KIM, SANG YONG NO
  • Publication number: 20250157412
    Abstract: A gate signal masking circuit includes a first switching element including a control electrode connected to a masking node, a first electrode connected to a first node and a second electrode connected to a third node, a second switching element including a control electrode connected to a second node, a first electrode receiving a masking signal and a second electrode connected to a fourth node, a third switching element including a control electrode receiving a first signal, a first electrode connected to the fourth node and a second electrode connected to the masking node, a fourth switching element including a control electrode receiving a second signal, a first electrode connected to the masking node and a second electrode connected to a fifth node and a fifth switching element including a control electrode connected to the second node, an electrode connected to the fifth node and another electrode receiving a power.
    Type: Application
    Filed: November 13, 2024
    Publication date: May 15, 2025
    Inventors: KYUNGHO KIM, NAHYEON CHA, SANG YONG NO
  • Publication number: 20250107378
    Abstract: A display device includes: a first auxiliary insulating layer through which an opening is defined; a second auxiliary insulating layer on the first auxiliary insulating layer; a pixel definition layer on the second auxiliary insulating layer and having a pixel opening defined therethrough; a first auxiliary electrode having at least a portion in the opening; a second auxiliary electrode having at least a portion in the opening, the second auxiliary electrode comprising a second-first portion on the first auxiliary electrode and a second-second portion comprising a first surface that forms a first angle with an upper surface of the first auxiliary electrode and is spaced apart from the upper surface of the first auxiliary electrode; a first electrode having a portion in the pixel opening; and a second electrode on the first electrode and electrically connected to the first auxiliary electrode.
    Type: Application
    Filed: July 10, 2024
    Publication date: March 27, 2025
    Inventors: NAHYEON CHA, SUNKWUN SON, DONG HEE SHIN
  • Publication number: 20250061841
    Abstract: A gate driver includes a control circuit which controls a voltage of a first control node and a voltage of a second control node in response to an input signal, a first control clock signal, a the second control clock signal, a carry output circuit which generates a carry signal in response to voltages of the first control node and the second control node, an enable node control circuit controlling a voltage of an enable node in response to the carry signal, an enable signal, and an inverted enable signal, a masking circuit which controls a voltage of a first intermediate node in response to the voltage of the first control node, the carry signal, and the voltage of the enable node, and a gate output circuit which outputs a gate signal in response to the carry signal, the voltage of the first intermediate node, and an output clock signal.
    Type: Application
    Filed: May 6, 2024
    Publication date: February 20, 2025
    Inventors: KYUNGHO KIM, NAHYEON CHA, SUNGYOON HWANG
  • Patent number: 12080248
    Abstract: A display apparatus includes a display panel, a data driving circuit and a gate driving circuit. The display panel displays an image and includes a plurality of pixels. The data driving circuit applies a data voltage to a data line of the display panel. The gate driving circuit applies a gate output signal to a gate line of the display panel. The gate driving circuit is disposed between opening portions in a display area of the display panel. The gate driving circuit includes a normal stage column extending in a pixel column direction of the display panel and including a plurality of normal stages and a dummy stage column disposed adjacent to an end portion of the normal stage column in a pixel row direction and including a plurality of dummy stages.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: September 3, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hee Shin, Sunkwun Son, Nahyeon Cha, Donghyeon Ki
  • Publication number: 20240135870
    Abstract: Provided is a display apparatus in which an area of a dead space is significantly reduced, the display apparatus including a first scan line extending in a first direction, a second scan line spaced apart from the first scan line and extending in the first direction, a first pixel set disposed between the first scan line and the second scan line, the first pixel set including a 1-1st pixel including n sub-pixels and a 1-2nd pixel including n sub-pixels, and n first data lines spaced apart from each other, disposed between the 1-1st pixel and the 1-2nd pixel in a plan view, extending in a second direction crossing the first direction, and electrically connected to the 1-1st pixel and the 1-2nd pixel.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 25, 2024
    Inventors: Donghee Shin, Donghyeon Ki, Sunkwun Son, Nahyeon Cha
  • Patent number: 11963418
    Abstract: A display device according to an embodiment may include a first sub-display panel and a second sub-display panel adjacent to the first sub-display panel in a first direction. The first sub-display panel may include a first pixel adjacent to the second sub-display panel and a first ground line disposed between the first pixel and the second sub-display panel and extending in a second direction crossing the first direction. The second sub-display panel may include a second pixel adjacent to the first sub-display panel and a second ground line disposed between the second pixel and the first sub-display panel and extending in the second direction.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 16, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunkwun Son, Dong Hee Shin, Nahyeon Cha
  • Patent number: 11887534
    Abstract: Provided is a display apparatus in which an area of a dead space is significantly reduced, the display apparatus including a first scan line extending in a first direction, a second scan line spaced apart from the first scan line and extending in the first direction, a first pixel set disposed between the first scan line and the second scan line, the first pixel set including a 1-1st pixel including n sub-pixels and a 1-2nd pixel including n sub-pixels, and n first data lines spaced apart from each other, disposed between the 1-1st pixel and the 1-2nd pixel in a plan view, extending in a second direction crossing the first direction, and electrically connected to the 1-1st pixel and the 1-2nd pixel.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: January 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Donghee Shin, Donghyeon Ki, Sunkwun Son, Nahyeon Cha
  • Patent number: 11721255
    Abstract: A tiling display device includes a first display panel and a second display panel that is spaced apart from the first display panel by a horizontal tiling interval. The first display panel includes first to (n)-th pixel columns, and the second display panel includes first to (m)-th pixel columns. A first distance between the (n)-th pixel column of the first display panel and the first pixel column of the second display panel is less than a second distance between a (n?1)-th pixel column of the first display panel and the (n)-th pixel column of the first display panel.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 8, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunkwun Son, Dong Hee Shin, Nahyeon Cha, Byoungsun Na, Joonhoo Choi
  • Patent number: 11683967
    Abstract: Provided is a tiled display device including a first sub-display panel on which a plurality of unit pixels is formed, and a second sub-display panel on which a plurality of unit pixels is formed, and located adjacent to the first sub-display panel, wherein each of the unit pixels includes a display element for emitting colored light, and a plurality of sub-pixels having a pixel circuit for driving the display element, and wherein an arrangement order of sub-pixels in the unit pixels corresponding to a current row, and an arrangement order of the sub-pixels in the unit pixels corresponding to a previous row or a next row, are different from each other.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hee Shin, Sunkwun Son, Nahyeon Cha
  • Patent number: 11630632
    Abstract: A display device includes a tiled display structure including a first display panel, a second display panel adjacent to a first side of the first display panel, a third display panel adjacent to a second side of the first display panel, and a fourth display panel adjacent to a first side of the third display panel and a first side of the second display panel. Each of the first to fourth display panels includes a display area and a pad area, and each of the first to fourth display panels includes a plurality of pixels in the display area. Each of the pixels includes at least two sub-pixels. When viewed in a plan view of the tiled display structure, the at least two sub-pixels included in each of the pixels are repeatedly arranged in a row direction and a column direction on a plane of the tiled display structure.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nahyeon Cha, Sunkwun Son, Dong Hee Shin
  • Publication number: 20220269466
    Abstract: A display device includes a tiled display structure including a first display panel, a second display panel adjacent to a first side of the first display panel, a third display panel adjacent to a second side of the first display panel, and a fourth display panel adjacent to a first side of the third display panel and a first side of the second display panel. Each of the first to fourth display panels includes a display area and a pad area, and each of the first to fourth display panels includes a plurality of pixels in the display area. Each of the pixels includes at least two sub-pixels. When viewed in a plan view of the tiled display structure, the at least two sub-pixels included in each of the pixels are repeatedly arranged in a row direction and a column direction on a plane of the tiled display structure.
    Type: Application
    Filed: November 4, 2021
    Publication date: August 25, 2022
    Inventors: NAHYEON CHA, SUNKWUN SON, DONG HEE SHIN
  • Publication number: 20220130328
    Abstract: Provided is a display apparatus in which an area of a dead space is significantly reduced, the display apparatus including a first scan line extending in a first direction, a second scan line spaced apart from the first scan line and extending in the first direction, a first pixel set disposed between the first scan line and the second scan line, the first pixel set including a 1-1st pixel including n sub-pixels and a 1-2nd pixel including n sub-pixels, and n first data lines spaced apart from each other, disposed between the 1-1st pixel and the 1-2nd pixel in a plan view, extending in a second direction crossing the first direction, and electrically connected to the 1-1st pixel and the 1-2nd pixel.
    Type: Application
    Filed: May 7, 2021
    Publication date: April 28, 2022
    Inventors: Donghee Shin, Donghyeon Ki, Sunkwun Son, Nahyeon Cha
  • Publication number: 20220084449
    Abstract: A tiling display device includes a first display panel and a second display panel that is spaced apart from the first display panel by a horizontal tiling interval. The first display panel includes first to (n)-th pixel columns, and the second display panel includes first to (m)-th pixel columns. A first distance between the (n)-th pixel column of the first display panel and the first pixel column of the second display panel is less than a second distance between a (n?1)-th pixel column of the first display panel and the (n)-th pixel column of the first display panel.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 17, 2022
    Inventors: Sunkwun Son, Dong Hee Shin, Nahyeon Cha, Byoungsun Na, Joonhoo Choi
  • Publication number: 20220077278
    Abstract: A display device according to an embodiment may include a first sub-display panel and a second sub-display panel adjacent to the first sub-display panel in a first direction. The first sub-display panel may include a first pixel adjacent to the second sub-display panel and a first ground line disposed between the first pixel and the second sub-display panel and extending in a second direction crossing the first direction. The second sub-display panel may include a second pixel adjacent to the first sub-display panel and a second ground line disposed between the second pixel and the first sub-display panel and extending in the second direction.
    Type: Application
    Filed: April 15, 2021
    Publication date: March 10, 2022
    Inventors: SUNKWUN SON, DONG HEE SHIN, NAHYEON CHA
  • Publication number: 20220077277
    Abstract: Provided is a tiled display device including a first sub-display panel on which a plurality of unit pixels is formed, and a second sub-display panel on which a plurality of unit pixels is formed, and located adjacent to the first sub-display panel, wherein each of the unit pixels includes a display element for emitting colored light, and a plurality of sub-pixels having a pixel circuit for driving the display element, and wherein an arrangement order of sub-pixels in the unit pixels corresponding to a current row, and an arrangement order of the sub-pixels in the unit pixels corresponding to a previous row or a next row, are different from each other.
    Type: Application
    Filed: April 6, 2021
    Publication date: March 10, 2022
    Inventors: Dong Hee SHIN, Sunkwun SON, Nahyeon CHA
  • Publication number: 20220059038
    Abstract: A display apparatus includes a display panel, a data driving circuit and a gate driving circuit. The display panel displays an image and includes a plurality of pixels. The data driving circuit applies a data voltage to a data line of the display panel. The gate driving circuit applies a gate output signal to a gate line of the display panel. The gate driving circuit is disposed between opening portions in a display area of the display panel. The gate driving circuit includes a normal stage column extending in a pixel column direction of the display panel and including a plurality of normal stages and a dummy stage column disposed adjacent to an end portion of the normal stage column in a pixel row direction and including a plurality of dummy stages.
    Type: Application
    Filed: May 11, 2021
    Publication date: February 24, 2022
    Inventors: DONG HEE SHIN, SUNKWUN SON, NAHYEON CHA, DONGHYEON KI
  • Publication number: 20220059479
    Abstract: A display panel includes: a display substrate including a display area and a pad area spaced apart from a side of the display area in a first direction; and first to (n)th signal pads (where n is an integer of 2 or more) in the pad area on the display substrate, extending in the first direction, and spaced apart from each other in a second direction perpendicular to the first direction, wherein a (k)th signal pad among the first to (n)th signal pads (where k is an integer between 1 and n) is between the first signal pad and the (n)th signal pad, wherein a length of each of (k)th to (n)th signal pads among the first to (n)th signal pads along the first direction gradually increases, and wherein a width of each of the (k)th to (n)th signal pads along the second direction gradually decreases.
    Type: Application
    Filed: June 18, 2021
    Publication date: February 24, 2022
    Inventors: DONG HEE SHIN, SUNKWUN SON, NAHYEON CHA
  • Publication number: 20220045156
    Abstract: A display panel includes a first sub-display panel, a second sub-display panel adjacent to the first sub-display panel in a first direction, and a connection member electrically connecting the first sub-display panel to the second sub-display panel. The first sub-display panel includes a first pixel, a second pixel between and adjacent to the first pixel and the second sub-display panel, a first low power voltage line for transferring a power voltage to the first pixel, and a first gate line electrically connected to the first pixel and the second pixel, the second pixel receives the power voltage from the first low power voltage line, the second sub-display panel includes a third pixel adjacent to the first sub-display panel, and the third pixel is electrically connected to the first gate line.
    Type: Application
    Filed: April 28, 2021
    Publication date: February 10, 2022
    Inventors: DONG HEE SHIN, SUNKWUN SON, NAHYEON CHA