Patents by Inventor Min-joo Kim

Min-joo Kim 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: 20240030388
    Abstract: A display device includes a display area and a non-display area; and a pixel disposed on the display area of a substrate. The pixel includes a first sub-pixel disposed in a first sub-pixel area, the first sub-pixel emitting light of a first color; a second sub-pixel disposed in a second sub-pixel area, the second sub-pixel emitting light of a second color; and a third sub-pixel disposed in a third sub-pixel area, the third sub-pixel emitting light of a third color. Each of two sub-pixels among the first sub-pixel, the second sub-pixel, and the third sub-pixel includes a light emitting element emitting light of the third color, and the other sub-pixel among the first sub-pixel, the second sub-pixel, and the third sub-pixel includes a light emitting element emitting light of a color different from the third color.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 25, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hoon KIM, Min Joo KIM, Je Won YOO, Seung Kyu LEE, Yong Sik HWANG
  • Publication number: 20240014356
    Abstract: A display device according to an embodiment of the disclosure includes a channel formation pattern disposed on a base layer and including a first channel and a second channel spaced apart from each other; and a light emitting element disposed on the channel formation pattern. The light emitting element is aligned between the first channel and the second channel.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Je Won YOO, Min Joo KIM, Hoon KIM, Seung Kyu LEE, Yong Sik HWANG
  • Publication number: 20240006559
    Abstract: A display device is provided. The display device comprises a substrate, a first electrode and a second electrode above the substrate, extending in one direction, and spaced apart from each other in another direction, a light-emitting element above the first electrode and the second electrode, a first connection electrode contacting one end portion of the light-emitting element, a second connection electrode contacting another end portion of the light-emitting element, and a first insulating layer between the light-emitting element and the first and second electrodes, and including a light-blocking material.
    Type: Application
    Filed: May 9, 2023
    Publication date: January 4, 2024
    Inventors: Je Won YOO, Min Joo KIM, Hoon KIM, Seung Kyu LEE, Yong Sik HWANG
  • Patent number: 11856821
    Abstract: A display device includes a first display area and a second display area adjacent to the first display area in a first direction, driving elements, light-emitting elements including a pixel electrode electrically connected to a corresponding one of the driving elements, signal wirings that transfer a driving signal to the driving elements, and connection wirings that transfer a driving signal to signal wirings disposed in the second display area. At least one of the connection wirings includes a first signal-transferring portion extending in the first direction, a second signal-transferring portion extending in a second direction, and dummy portions extending in a direction intersecting the first and second signal-transferring portions. The pixel electrode overlaps a gap between dummy portions of adjacent connection wirings in an area where the connection wirings are disposed.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Joo Kim, Sun Ho Kim, Seung-Hwan Cho, Tae Woo Kim, Tae Hoon Yang, Jong Hyun Choi
  • Patent number: 11836326
    Abstract: A touch display apparatus is provided. The touch display apparatus may include touch electrodes on an encapsulating layer covering light-emitting devices. An auxiliary line crossing a display area in which the light-emitting devices are disposed may be disposed on the encapsulating layer. The auxiliary line may be electrically connected to a power voltage supply line at the outside of the display area. Each of the light-emitting devices may include a first emission electrode, a light-emitting layer and a second emission electrode, which are stacked on an emission area defined by a bank insulating layer. The second emission electrode of each light-emitting device may be electrically connected to the auxiliary line on the bank insulating layer. Thus, in the touch display apparatus, a luminance deviation due to a voltage drop may be prevented or at least reduced.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: December 5, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Il Chu, Young Kyun Moon, Min Joo Kim
  • Publication number: 20230384886
    Abstract: Disclosed is an organic light emitting display device with a touch sensor. The display device has a touch sensor that is directly disposed on a sealing part, thus removing the necessity of an additional adhesion process, simplifying a manufacturing process and reducing manufacture cost. In addition, the display device with the touch sensor includes a display cover electrode of a display pad that is made of a same material as a conductive layer included in the touch sensor, thus preventing damage to the display pad electrode.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 30, 2023
    Inventors: Eun-Hye LEE, Min-Joo KIM, Jae-Young OH, Jae-Won LEE
  • Publication number: 20230387369
    Abstract: A display device comprises conductive layers disposed on a substrate in different layers, a via layer on the conductive layers, a bank disposed on the via layer and defining a light emission area, bank patterns on the via layer and extended in a first direction, a first electrode on the bank patterns and extended in the first direction, and a second electrode disposed on the bank patterns and extended in the first direction, and light emitting elements on the first electrode and the second electrode. The bank patterns are spaced apart from each other. The first and second electrodes are spaced apart from each other. The bank and the bank patterns define an alignment area in which the light emitting elements are disposed. An area, in which two or more of the conductive layers overlap each other in a plan view is about 80% or more in the alignment area.
    Type: Application
    Filed: February 27, 2023
    Publication date: November 30, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Hoon KIM, Min Joo KIM, Je Won YOO, Seung Kyu LEE, Yong Sik HWANG
  • Patent number: 11809657
    Abstract: The present disclosure relates to a display device for improving productivity. The display device having a touch sensor is configured such that the total thickness of at least one inorganic insulation layer disposed on the region above each of dams is different from the total thickness of the at least one inorganic insulation layer disposed on a trench region between the dams. Thus, a photoresist for forming a routing line is formed so as to have a uniform thickness on the region above each of the dams and the trench region between the dams, and thus productivity is improved.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: November 7, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Hyung Jang, Min-Joo Kim, Eun-Pyo Hong, Jae-Won Lee, Sang-Hoon Pak, Sang-Hyuk Won, Yeon-Woo Shin, Ji-Hun Lee
  • Patent number: 11775106
    Abstract: A touch display device for preventing deterioration in image quality is structured such that a plurality of touch sensors is disposed on an encapsulation unit encapsulating a light-emitting element and includes a driving signal line, which includes a first driving signal line disposed below the encapsulation unit and a second driving signal line disposed above the encapsulation unit so as to be in contact with the first driving signal line to reduce line resistance of the driving signal line, thereby preventing deterioration in image quality.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: October 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Won Lee, Min-Joo Kim, Sang-Hyuk Won, Jae-Hyung Jang
  • Patent number: 11744134
    Abstract: Disclosed are an organic light emitting display having a touch sensor, which may achieve process simplification and cost reduction, and a method of fabricating the same. The organic light emitting display includes a compensation film having a flat surface and formed to cover dams forming a boundary with an organic encapsulation layer and the compensation film has a planarized surface between a region above the dams and a boundary region between the dams and the organic encapsulation layer (144) and may prevent cut and short-circuit of routing lines cutting across the same. Further, touch sensors are disposed on an encapsulation unit including the organic encapsulation layer and thus a separate attachment process is not required, thereby simplifying the overall process and reducing manufacturing costs of the organic light emitting display.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: August 29, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Young Oh, Min-Joo Kim, Jae-Won Lee, Eun-Hye Lee
  • Publication number: 20230267862
    Abstract: A display device inspection method includes: checking connection failures of light emitting elements included in a pixel and connected in series based on a first control signal, a second control signal, and a voltage of an initialization power source, wherein the pixel comprises: a pixel circuit controlling a current flowing from a first power source to a second node in response to a voltage of a first node; a first light emitting element connected to the second node; a first transistor controlling the voltage of the initialization power source supplied to the second node; a second light emitting element electrically connected between the first light emitting element and a second power source; and a second transistor having a first electrode connected to a third node between the first light emitting element and the second light emitting element, and a gate electrode connected to a first inspection control line.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 24, 2023
    Inventors: Ki Nyeng KANG, Min Joo KIM, Tae Hoon YANG, Sang Hoon LEE, Seon Beom JI
  • Publication number: 20230244338
    Abstract: Disclosed is an organic light emitting display having reduced thickness and weight. The organic light emitting display with a touch sensor removes the necessity of an additional adhesion process by directly forming a touch sensor including a touch sensing line and a touch driving line and a color filter on the encapsulation layer covering a light emitting device, thereby simplifying a manufacturing process and reducing manufacturing costs.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 3, 2023
    Inventors: Jae-Won Lee, Seung-Hee NAM, Min-Joo KIM, Kwon-Shik PARK, Jae-Young OH, Deuk-Su LEE, Bu-Yeol LEE, Eun-Hye LEE, Tae-hwan KIM
  • Patent number: 11700759
    Abstract: Disclosed is a display device capable of reducing the thickness and the weigh thereof. In an organic light-emitting diode display device having a touch sensor, a plurality of routing lines, which are connected respectively to a plurality of touch sensors disposed on an encapsulation unit, are disposed on different planes so as to overlap each other and are electrically connected to each other through a plurality of routing contact holes. Thereby, a connection fault between the routing lines is prevented. In addition, through the provision of the touch sensors above the encapsulation unit, a separate attachment process is unnecessary, which results in a simplified manufacturing process and reduced costs.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: July 11, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang Hyuk Won, Min Joo Kim, Jae Won Lee, Sang Hoon Pak, Byong Hoo Kim, Sang Heun Lee, Hyang Myoung Gwon, Jeong Hoon Lee
  • Publication number: 20230214076
    Abstract: A touch display apparatus is provided. The touch display apparatus may include touch electrodes on an encapsulating layer covering light-emitting devices. An auxiliary line crossing a display area in which the light-emitting devices are disposed may be disposed on the encapsulating layer. The auxiliary line may be electrically connected to a power voltage supply line at the outside of the display area. Each of the light-emitting devices may include a first emission electrode, a light-emitting layer and a second emission electrode, which are stacked on an emission area defined by a bank insulating layer. The second emission electrode of each light-emitting device may be electrically connected to the auxiliary line on the bank insulating layer. Thus, in the touch display apparatus, a luminance deviation due to a voltage drop may be prevented or at least reduced.
    Type: Application
    Filed: October 28, 2022
    Publication date: July 6, 2023
    Inventors: Dong Il Chu, Young Kyun Moon, Min Joo Kim
  • Patent number: 11693507
    Abstract: Disclosed is an organic light emitting display device with a touch sensor. The display device has a touch sensor that is directly disposed on a sealing part, thus removing the necessity of an additional adhesion process, simplifying a manufacturing process and reducing manufacture cost. In addition, the display device with the touch sensor includes a display cover electrode of a display pad that is made of a same material as a conductive layer included in the touch sensor, thus preventing damage to the display pad electrode.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: July 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Hye Lee, Min-Joo Kim, Jae-Young Oh, Jae-Won Lee
  • Publication number: 20230209967
    Abstract: A display device prevents cracks from spreading to an active area. The display device includes a substrate including an active area and a non-active area having a bending area, a thin-film transistor disposed in the active area, a light-emitting element disposed in the active area and connected to the thin-film transistor, an encapsulation layer disposed on the light-emitting element, a touch sensor disposed on the encapsulation layer, a touch pad disposed in the non-active area, a first routing line connecting the touch sensor to the touch pad via a second routing line in the bending area, and a crack prevention layer disposed on the second routing line in the bending area. Thus, the crack prevention layer is capable of preventing the occurrence of cracks in the bending area BA, thus preventing cracks from spreading to the active area AA.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 29, 2023
    Inventors: Sang-Hyuk Won, Min-Joo Kim, Jae-Won Lee, Sang-Hoon Pak, Byong-Hoo Kim, Ji-Hye Lee, Jae-Man Jang, Sung-Jin Kim, Jae-Hyung Jang
  • Publication number: 20230209916
    Abstract: A display device includes a first display area and a second display area adjacent to the first display area in a first direction, driving elements, light-emitting elements including a pixel electrode electrically connected to a corresponding one of the driving elements, signal wirings that transfer a driving signal to the driving elements, and connection wirings that transfer a driving signal to signal wirings disposed in the second display area. At least one of the connection wirings includes a first signal-transferring portion extending in the first direction, a second signal-transferring portion extending in a second direction, and dummy portions extending in a direction intersecting the first and second signal-transferring portions. The pixel electrode overlaps a gap between dummy portions of adjacent connection wirings in an area where the connection wirings are disposed.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Min Joo KIM, Sun Ho KIM, Seung-Hwan CHO, Tae Woo KIM, Tae Hoon YANG, Jong Hyun CHOI
  • Patent number: 11675453
    Abstract: A touch display device in which routing lines are formed to have the same resistance value. Routing lines connected to touch electrodes in a non-active area and display signal links electrically connected to a light-emitting element are formed in different shapes from each other, and the lengths of at least one of zigzag patterns of the routing lines disposed in the non-active area and single-line regions are formed differently.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: June 13, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Hyung Jang, Min-Joo Kim, Jae-Won Lee
  • Patent number: 11656701
    Abstract: Disclosed is an organic light emitting display having reduced thickness and weight. The organic light emitting display with a touch sensor removes the necessity of an additional adhesion process by directly forming a touch sensor including a touch sensing line and a touch driving line and a color filter on the encapsulation layer covering a light emitting device, thereby simplifying a manufacturing process and reducing manufacturing costs.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: May 23, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Won Lee, Seung-Hee Nam, Min-Joo Kim, Kwon-Shik Park, Jae-Young Oh, Deuk-Su Lee, Bu-Yeol Lee, Eun-Hye Lee, Tae-hwan Kim
  • Patent number: 11636788
    Abstract: A display device inspection method includes: checking connection failures of light emitting elements included in a pixel and connected in series based on a first control signal, a second control signal, and a voltage of an initialization power source, wherein the pixel comprises: a pixel circuit controlling a current flowing from a first power source to a second node in response to a voltage of a first node; a first light emitting element connected to the second node; a first transistor controlling the voltage of the initialization power source supplied to the second node; a second light emitting element electrically connected between the first light emitting element and a second power source; and a second transistor having a first electrode connected to a third node between the first light emitting element and the second light emitting element, and a gate electrode connected to a first inspection control line.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Nyeng Kang, Min Joo Kim, Tae Hoon Yang, Sang Hoon Lee, Seon Beom Ji