Patents by Inventor Jeonghaeng Heo

Jeonghaeng Heo 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: 11682348
    Abstract: The present disclosure provides a display panel and a display method for use in the display panel. The display panel includes: a display region, the display region comprising a first display region and a second display region, the first display region comprising a transparent sub-display region, the transparent sub-display region having a light transmittance higher than that of the second display region; and a first light emission controller and a second light emission controller, the first light emission controller being configured to provide a light emission control signal to a plurality of pixel rows of the first display region, the second light emission controller being configured to provide a light emission control signal to a plurality of pixel rows of the second display region.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: June 20, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rongjian Yan, Jeonghaeng Heo, Zhaowei Yu
  • Publication number: 20220301503
    Abstract: The present disclosure provides a display panel and a display method for use in the display panel. The display panel includes: a display region, the display region comprising a first display region and a second display region, the first display region comprising a transparent sub-display region, the transparent sub-display region having a light transmittance higher than that of the second display region; and a first light emission controller and a second light emission controller, the first light emission controller being configured to provide a light emission control signal to a plurality of pixel rows of the first display region, the second light emission controller being configured to provide a light emission control signal to a plurality of pixel rows of the second display region.
    Type: Application
    Filed: September 23, 2021
    Publication date: September 22, 2022
    Inventors: Rongjian YAN, Jeonghaeng HEO, Zhaowei YU
  • Patent number: 10249849
    Abstract: An organic light emitting display device includes a first electrode and a second electrode on a substrate, the first electrode being opposite to the second electrode; and at least one emission part between the first electrode and the second electrode, the at least one emission part including at least one organic layer, wherein the at least one organic layer comprises a peak wavelength of electroluminescence (EL) spectrum (PWES) structure where a moving range of a peak wavelength of an EL spectrum emitted from the at least one emission part is set.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: April 2, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, JeongHaeng Heo, Taeil Kum, Seung Kim, Heedong Choi, HyungJune Kim
  • Patent number: 10020349
    Abstract: Provided is an organic light emitting device. The organic light emitting device includes a plurality of light emitting units laminated between a first electrode and a second electrode and each including an organic emitting layer, and a charge generation layer between the light emitting units. Further, the charge generation layer includes an N-type charge generation layer disposed to be in direct contact with an organic emitting layer of the adjacent light emitting unit and HOMO levels of the N-type charge generation layer and the organic emitting layer are regulated. Thus, a color change rate based on a viewing angle can be improved, and efficiency and a lifetime of the organic light emitting device can be improved.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 10, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: JeongHaeng Heo, Jaeil Song, SangGun Lee, SoYeon Ahn
  • Publication number: 20180102503
    Abstract: An organic light emitting display device includes a first electrode and a second electrode on a substrate, the first electrode being opposite to the second electrode; and at least one emission part between the first electrode and the second electrode, the at least one emission part including at least one organic layer, wherein the at least one organic layer comprises a peak wavelength of electroluminescence (EL) spectrum (PWES) structure where a moving range of a peak wavelength of an EL spectrum emitted from the at least one emission part is set.
    Type: Application
    Filed: December 1, 2017
    Publication date: April 12, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, JeongHaeng Heo, Taeil Kum, Seung Kim, Heedong Choi, HyungJune Kim
  • Patent number: 9859529
    Abstract: Discussed is an organic light emitting display device for reducing a color defect or a color difference which occurs in the front or side of the organic light emitting display device. The organic light emitting display device can include a first electrode, a second electrode and an organic layer between the first electrode and the second electrode, the organic layer including at least one emission part. The organic layer is configured for a peak wavelength of an electroluminescence (EL) spectrum of the organic light emitting display device emitted from the at least one emission part to have a range from 10 nm less a predetermined peak wavelength to 10 nm more than the predetermined peak wavelength.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 2, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, JeongHaeng Heo, Taeil Kum, Seung Kim, Heedong Choi, HyungJune Kim
  • Patent number: 9761823
    Abstract: An organic light emitting display device is discussed. The organic light emitting display device in one embodiment includes at least one light emitting layer between an anode and a cathode, and an electron transport layer between the at least one light emitting layer and the cathode. The electron transport layer may include a first electron transport material for blocking holes from the light emitting layer to the electron transport layer, and a second electron transport material for assisting in a transfer of electrons to the light emitting layer, wherein the first electron transport material and the second electron transport material have different triplet exciton energy levels and different electron mobilities.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: September 12, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seongsu Jeon, Jeonghaeng Heo, Seung Kim
  • Patent number: 9590201
    Abstract: An organic light emitting diode display has uniform light emission efficiency over the entire pixel area. The organic light emitting diode display comprises: a substrate having a red pixel area, a green pixel area, and a blue pixel area arrayed in a matrix; an anode electrode in the red, green, and blue pixel areas; a hole injection layer including an organic material with an extinction coefficient less than about 0.13 and on the anode electrode covering a whole surface of the substrate; an emission layer on the hole injection layer; an electron injection layer on a whole surface of the emission layer; and a cathode electrode on a whole surface of the electron injection layer.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: March 7, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeonghaeng Heo, Taesun Yoo, Taeshick Kim, Seung Kim
  • Publication number: 20160343776
    Abstract: Provided is an organic light emitting device. The organic light emitting device includes a plurality of light emitting units laminated between a first electrode and a second electrode and each including an organic emitting layer, and a charge generation layer between the light emitting units. Further, the charge generation layer includes an N-type charge generation layer disposed to be in direct contact with an organic emitting layer of the adjacent light emitting unit and HOMO levels of the N-type charge generation layer and the organic emitting layer are regulated. Thus, a color change rate based on a viewing angle can be improved, and efficiency and a lifetime of the organic light emitting device can be improved.
    Type: Application
    Filed: May 17, 2016
    Publication date: November 24, 2016
    Inventors: JeongHaeng HEO, Jaeil SONG, SangGun LEE, SoYeon AHN
  • Patent number: 9406908
    Abstract: Disclosed is an organic light emitting device comprising an anode; a cathode; and a plurality of stacks formed between the anode and the cathode. The plurality of stacks respectively emit their respective light of colors different from one another, wherein the plurality of stacks include a stack emitting blue light and a stack emitting mixed light of blue light and yellow-green to red light. Because the organic light emitting device includes a stack emitting blue light and a stack emitting mixed light of yellow-green to red light and blue light, blue light having a relatively low efficiency may be emitted from the two stacks, whereby overall light emitting efficiency is improved.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: August 2, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Shinhan Kim, JeongHaeng Heo, Taeshick Kim
  • Publication number: 20160141555
    Abstract: Discussed is an organic light emitting display device for reducing a color defect or a color difference which occurs in the front or side of the organic light emitting display device. The organic light emitting display device can include a first electrode, a second electrode and an organic layer between the first electrode and the second electrode, the organic layer including at least one emission part. The organic layer is configured for a peak wavelength of an electroluminescence (EL) spectrum of the organic light emitting display device emitted from the at least one emission part to have a range from 10 nm less a predetermined peak wavelength to 10 nm more than the predetermined peak wavelength.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 19, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog SONG, JeongHaeng HEO, Taeil KUM, Seung KIM, Heedong CHOI, HyungJune KIM
  • Publication number: 20160104854
    Abstract: An organic light emitting display device is discussed. The organic light emitting display device in one embodiment includes at least one light emitting layer between an anode and a cathode, and an electron transport layer between the at least one light emitting layer and the cathode. The electron transport layer may include a first electron transport material for blocking holes from the light emitting layer to the electron transport layer, and a second electron transport material for assisting in a transfer of electrons to the light emitting layer, wherein the first electron transport material and the second electron transport material have different triplet exciton energy levels and different electron mobilities.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 14, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seongsu JEON, Jeonghaeng HEO, Seung KIM
  • Publication number: 20150060829
    Abstract: An organic light emitting diode display has uniform light emission efficiency over the entire pixel area. The organic light emitting diode display comprises: a substrate having a red pixel area, a green pixel area, and a blue pixel area arrayed in a matrix; an anode electrode in the red, green, and blue pixel areas; a hole injection layer including an organic material with an extinction coefficient less than about 0.13 and on the anode electrode covering a whole surface of the substrate; an emission layer on the hole injection layer; an electron injection layer on a whole surface of the emission layer; and a cathode electrode on a whole surface of the electron injection layer.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Jeonghaeng HEO, Taesun YOO, Taeshick KIM, Seung KIM
  • Publication number: 20150001506
    Abstract: Disclosed is an organic light emitting device comprising an anode; a cathode; and a plurality of stacks formed between the anode and the cathode. The plurality of stacks respectively emit their respective light of colors different from one another, wherein the plurality of stacks include a stack emitting blue light and a stack emitting mixed light of blue light and yellow-green to red light. Because the organic light emitting device includes a stack emitting blue light and a stack emitting mixed light of yellow-green to red light and blue light, blue light having a relatively low efficiency may be emitted from the two stacks, whereby overall light emitting efficiency is improved.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Shinhan KIM, JeongHaeng HEO, Taeshick KIM
  • Patent number: 8378362
    Abstract: An organic light emitting diode display and a method of manufacturing the same are disclosed. The organic light emitting diode display includes a substrate, a first electrode positioned on the substrate, an organic light emitting layer positioned on the first electrode, and a second electrode positioned on the organic light emitting layer. The organic light emitting layer includes an inorganic oxide layer between a light emitting layer and a common layer.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: February 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jeonghaeng Heo, Hyunsuk Kim, Jinho Park
  • Publication number: 20110031511
    Abstract: An organic light emitting diode display and a method of manufacturing the same are disclosed. The organic light emitting diode display includes a substrate, a first electrode positioned on the substrate, an organic light emitting layer positioned on the first electrode, and a second electrode positioned on the organic light emitting layer. The organic light emitting layer includes an inorganic oxide layer between a light emitting layer and a common layer.
    Type: Application
    Filed: May 13, 2010
    Publication date: February 10, 2011
    Inventors: Jeonghaeng HEO, Hyunsuk Kim, Jinho Park