Patents by Inventor Sang Hoon PAK

Sang Hoon PAK 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).

  • Patent number: 11985884
    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: Grant
    Filed: February 16, 2023
    Date of Patent: May 14, 2024
    Assignee: LG Display Co., Ltd.
    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: 20240113152
    Abstract: A display apparatus can include a substrate having a penetrating area and a separating area, the penetrating area including a substrate hole, a first buffer layer having a first-buffer lower layer, and a first-buffer upper layer, a first thin film transistor including a first semiconductor pattern, a first gate electrode, and a first source electrode and a first drain electrode, a first interlayer insulating film; a second interlayer insulating film, an opening extending through the second interlayer insulating film, the first interlayer insulating film, the first gate insulating film and the first-buffer upper layer, and a separation structure in the opening, the separation structure including a first separation layer having a same stacked structure as the first-buffer upper layer, a second separation layer having a same stacked structure as the first gate insulating film, and a third separation layer having a same stacked structure as the first gate electrode.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 4, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Il CHU, Min-Joo KIM, Jae-Won LEE, Sang-Hoon PAK, Sang-Hyuk WON, Seung-Hyun YOUK, Seon-Hee LEE
  • Patent number: 11901398
    Abstract: A display apparatus includes a substrate including a penetrating area including a substrate hole, and a separating area surrounding the penetrating area, a first buffer layer including a first-buffer lower layer on the substrate, and a first-buffer upper layer on the first-buffer lower layer, a first TFT including a first semiconductor pattern on the first-buffer upper layer, and a first gate electrode overlapping with the first semiconductor pattern under conditions that a first gate insulating film is interposed therebetween, and first source/drain electrodes connected to the first semiconductor pattern, a second TFT, a separation structure disposed in the separating area of the substrate while including a first separation layer having the same stacked structure as the first-buffer upper layer, a second separation layer having the same stacked structure as the first gate insulating film, and a third separation layer having the same stacked structure as the first gate electrode.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Il Chu, Min-Joo Kim, Jae-Won Lee, Sang-Hoon Pak, Sang-Hyuk Won, Seung-Hyun Youk, Seon-Hee Lee
  • 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: 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: 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
  • Patent number: 11610946
    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: Grant
    Filed: March 2, 2022
    Date of Patent: March 21, 2023
    Assignee: LG Display Co., Ltd.
    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: 20220300138
    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: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    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: 11392243
    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 11, 2021
    Date of Patent: July 19, 2022
    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
  • Publication number: 20220190048
    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: March 2, 2022
    Publication date: June 16, 2022
    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: 20220173160
    Abstract: A display device includes first and second alignment electrodes disposed on a substrate, an alignment insulating film having a concave portion disposed between the first and second alignment electrodes, a light-emitting device disposed on the alignment insulating film, first and second electrodes electrically connected to the light-emitting device, a thin-film transistor connected to one of the first and second electrodes, and a plurality of insulating films providing a trench disposed on the concave portion, the trench having a larger width than the concave portion, thereby improving emission efficiency.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang Hoon PAK, Tae Gyu LEE, Seon Hee LEE, Jung Eun LEE, Kyung Ha LEE
  • Publication number: 20220140012
    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: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: 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
  • Patent number: 11314351
    Abstract: A touch display device for preventing damage to test patterns is configured such that a test cover layer, which is formed of the same material as at least one of a plurality of insulating films disposed between a light-emitting element and a touch electrode, is disposed on a test pattern formed on a peripheral portion of a substrate, thereby preventing damage to the test pattern during the process of manufacturing a touch sensor.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: April 26, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Hyung Jang, Min-Joo Kim, Jae-Won Lee, Sang-Hoon Pak, Sang-Hyuk Won
  • Patent number: 11296157
    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: Grant
    Filed: December 4, 2020
    Date of Patent: April 5, 2022
    Assignee: LG Display Co., Ltd.
    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
  • Patent number: 11264435
    Abstract: Disclosed is a display device capable of being manufactured through a simplified process and having improved touch sensitivity. The display device includes an encapsulation unit disposed on a light-emitting element, a touch sensor disposed on the encapsulation unit, and an intermediate layer disposed between the encapsulation unit and the touch sensor. The intermediate layer includes a first intermediate layer, having a dielectric constant that is lower than a dielectric constant of an organic film disposed above or under the intermediate layer, and a second intermediate layer, having greater hardness than the first intermediate layer, whereby touch sensitivity is improved while processing is simplified.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: March 1, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Byong-Hoo Kim, Min-Joo Kim, Eun-Pyo Hong, Jae-Won Lee, Sang-Hoon Pak, Sang-Hyuk Won, Jae-Man Jang, Sung-Jin Kim, Jae-Hyung Jang
  • Patent number: 11257877
    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: November 11, 2020
    Date of Patent: February 22, 2022
    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: 20210303125
    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: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    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: 11061505
    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: October 25, 2019
    Date of Patent: July 13, 2021
    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
  • Publication number: 20210202570
    Abstract: A display apparatus includes a substrate including a penetrating area including a substrate hole, and a separating area surrounding the penetrating area, a first buffer layer including a first-buffer lower layer on the substrate, and a first-buffer upper layer on the first-buffer lower layer, a first TFT including a first semiconductor pattern on the first-buffer upper layer, and a first gate electrode overlapping with the first semiconductor pattern under conditions that a first gate insulating film is interposed therebetween, and first source/drain electrodes connected to the first semiconductor pattern, a second TFT, a separation structure disposed in the separating area of the substrate while including a first separation layer having the same stacked structure as the first-buffer upper layer, a second separation layer having the same stacked structure as the first gate insulating film, and a third separation layer having the same stacked structure as the first gate electrode.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: DONG-IL CHU, MIN-JOO KIM, JAE-WON LEE, SANG-HOON PAK, SANG-HYUK WON, SEUNG-HYUN YOUK, SEON-HEE LEE
  • Publication number: 20210191553
    Abstract: A touch display device for preventing damage to test patterns is configured such that a test cover layer, which is formed of the same material as at least one of a plurality of insulating films disposed between a light-emitting element and a touch electrode, is disposed on a test pattern formed on a peripheral portion of a substrate, thereby preventing damage to the test pattern during the process of manufacturing a touch sensor.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 24, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Jae-Hyung JANG, Min-Joo KIM, Jae-Won LEE, Sang-Hoon PAK, Sang-Hyuk WON