Patents by Inventor Tae-Shick Kim

Tae-Shick 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).

  • Patent number: 11963443
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.
    Type: Grant
    Filed: December 21, 2019
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: In Bum Song, Seung Hee Yoon, Gwi Jeong Cho, So Yeon Ahn, Yoo Yi Son, Tae Shick Kim
  • Patent number: 11950439
    Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: April 2, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Jung Park, Jung-Keun Kim, Wook Song, Tae-Shick Kim
  • Patent number: 11737333
    Abstract: An organic light emitting diode display device includes a substrate having first, second, third and fourth subpixels; first, second and third color filter layers in the second, third and fourth subpixels, respectively, on the substrate; a first wavelength converting layer in the first subpixel on the substrate and second and third wavelength converting layers on the first and second color filter layers, respectively; and a light emitting diode in each of the first, second, third and fourth subpixels over the first, second and third wavelength converting.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: August 22, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ji-Hyang Jang, Tae-Shick Kim, So-Young Jo, Jin-Tae Kim
  • Publication number: 20230255087
    Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 10, 2023
    Inventors: Ji-Hyang JANG, Won-Hoe KOO, Tae-Shick KIM
  • Publication number: 20230217670
    Abstract: Discussed is a light-emitting device including a first light-emitting layer so that a dopant having a hole trapping property is adjacent to a hole transport layer, and a second light-emitting layer that comes into contact with the first light-emitting layer to induce main light emission, thereby widening an emission zone and improving the efficiency and lifespan of the light-emitting layer. Also discussed is a light-emitting display including the light-emitting device. The first and second blue light-emitting layers can include a same host BH and different first and second blue dopants, respectively, and the first blue dopant can have a higher highest occupied molecular orbital (HOMO) energy level than a HOMO energy level of the hole transport layer.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 6, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Jin Hwan PARK, Ji Yun KIM, Yong Hwan KIM, Tae Shick KIM, Kwang Hyun KIM, Dong Hyuk KIM
  • Patent number: 11678552
    Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: June 13, 2023
    Assignee: LG Display Co., Ltd
    Inventors: Ji-Hyang Jang, Won-Hoe Koo, Tae-Shick Kim
  • Publication number: 20230090815
    Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.
    Type: Application
    Filed: October 3, 2022
    Publication date: March 23, 2023
    Inventors: Eun-Jung PARK, Jung-Keun KIM, Wook SONG, Tae-Shick KIM
  • Patent number: 11495765
    Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: November 8, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Eun-Jung Park, Jung-Keun Kim, Wook Song, Tae-Shick Kim
  • Patent number: 11430834
    Abstract: A display device, includes a substrate having at least two colored subpixels and a white subpixel separately arranged thereon; a first anode having a first thickness at each of the colored subpixels on the substrate; a second anode, having a thickness smaller than the first thickness, at the white subpixel on the substrate; an organic stack comprising a first stack having a first blue emission layer, a second stack having a second blue emission layer, and a third stack having at least one of emission layers having a longer wavelength than the blue emission layers, which are provided in sequence on the first anode in the colored subpixel and the second anode in the white subpixel; a cathode over the organic stack; and a compensation pattern between the second anode and the substrate.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: August 30, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Mi-Young Han, Jung-Keun Kim, Tae-Shick Kim
  • Publication number: 20220173324
    Abstract: An organic light emitting device that includes a substrate and an organic light emitting diode positioned on the substrate is provided. The organic light emitting diode includes a first electrode, a second electrode facing the first electrode, a first emitting material layer including a first compound and positioned between the first and second electrodes, and a second emitting material layer including a second compound and positioned between the first emitting material layer and the second electrode. Each of the first and second compounds is an anthracene derivative, and a deuteration ratio of the first compound is greater than that of the second compound.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Inventors: Young-Jun YU, Sang-Beom KIM, Hyun-Chul CHOI, In-Bum SONG, Do-Han KIM, Jeong-Dae SEO, Tae-Shick KIM
  • Patent number: 11257871
    Abstract: An organic light emitting diode display device includes an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: February 22, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Ju Lee, Seung-Ryong Joung, Seong-Su Jeon, Tae-Shick Kim
  • Publication number: 20210367164
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.
    Type: Application
    Filed: December 21, 2019
    Publication date: November 25, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In Bum SONG, Seung Hee YOON, Gwi Jeong CHO, So Yeon AHN, Yoo Yi SON, Tae Shick KIM
  • Publication number: 20210217818
    Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
    Type: Application
    Filed: March 9, 2021
    Publication date: July 15, 2021
    Inventors: Ji-Hyang JANG, Won-Hoe KOO, Tae-Shick KIM
  • Publication number: 20210202598
    Abstract: A display device, includes a substrate having at least two colored subpixels and a white subpixel separately arranged thereon; a first anode having a first thickness at each of the colored subpixels on the substrate; a second anode, having a thickness smaller than the first thickness, at the white subpixel on the substrate; an organic stack comprising a first stack having a first blue emission layer, a second stack having a second blue emission layer, and a third stack having at least one of emission layers having a longer wavelength than the blue emission layers, which are provided in sequence on the first anode in the colored subpixel and the second anode in the white subpixel; a cathode over the organic stack; and a compensation pattern between the second anode and the substrate.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Young HAN, Jung-Keun KIM, Tae-Shick KIM
  • Publication number: 20210175457
    Abstract: Disclosed herein are a white organic light-emitting device. The white organic light-emitting device enables an overall improvement in characteristics such as color temperature, efficiency, luminance, and service life, by changing the configuration of different types of emission layers in contact with each other, and a display device using the same.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 10, 2021
    Inventors: Eun-Jung PARK, Jung-Keun KIM, Wook SONG, Tae-Shick KIM
  • Publication number: 20210175290
    Abstract: An organic light emitting diode display device includes a substrate having first, second, third and fourth subpixels; first, second and third color filter layers in the second, third and fourth subpixels, respectively, on the substrate; a first wavelength converting layer in the first subpixel on the substrate and second and third wavelength converting layers on the first and second color filter layers, respectively; and a light emitting diode in each of the first, second, third and fourth subpixels over the first, second and third wavelength converting.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Ji-Hyang JANG, Tae-Shick KIM, So-Young JO, Jin-Tae KIM
  • Patent number: 10971558
    Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: April 6, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ji-Hyang Jang, Won-Hoe Koo, Tae-Shick Kim
  • Publication number: 20210013266
    Abstract: An organic light emitting diode display device includes an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 14, 2021
    Applicant: LG Display Co., Ltd
    Inventors: Kang-Ju LEE, Seung-Ryong JOUNG, Seong-Su JEON, Tae-Shick KIM
  • Patent number: 10826024
    Abstract: An organic light emitting diode lighting apparatus can include a substrate having an emitting area and first and second non-emitting areas; an auxiliary electrode in the first non-emitting area on the substrate; an overcoating layer in the emitting area on the substrate, the overcoating layer having a microlens including a plurality of convex portions and a plurality of concave portions; a first electrode on the auxiliary electrode and the overcoating layer, the first electrode including at least one open portion exposing the overcoating layer in the second non-emitting area; a gas blocking pattern covering the at least one open portion; and a light emitting layer and a second electrode disposed on the first electrode and the gas blocking pattern.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 3, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Ju Lee, Tae-Shick Kim
  • Patent number: 10811469
    Abstract: An organic light emitting diode display device includes: an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode and including a first emitting material layer; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 20, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Ju Lee, Seung-Ryong Joung, Seong-Su Jeon, Tae-Shick Kim