Patents by Inventor Ri Hong

Ri Hong 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: 20190355825
    Abstract: A semiconductor device according to an example embodiment of the present inventive concept includes a substrate having a first region and a second region horizontally separate from the first region; a first gate line in the first region, the first gate line including a first lower work function layer and a first upper work function layer disposed on the first lower work function layer; and a second gate line including a second lower work function layer in the second region, the second gate line having a width in a first, horizontal direction equal to or narrower than a width of the first gate line in the first direction, wherein an uppermost end of the first upper work function layer and an uppermost end of the second lower work function layer are each located at a vertical level higher than an uppermost end of the first lower work function layer with respect to a second direction perpendicular to the first direction.
    Type: Application
    Filed: December 10, 2018
    Publication date: November 21, 2019
    Inventors: Jeong Hyuk YIM, Kug Hwan KIM, Wan Don KIM, Jung Min PARK, Jong Ho PARK, Byoung Hoon LEE, Yong Ho HA, Sang Jin HYUN, Hye Ri HONG
  • Patent number: 10186669
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: January 22, 2019
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD
    Inventors: Hee-Ryong Kang, Hyun-Ju Kang, Jin-Ri Hong, Doo-Hyeon Moon, Young-Mook Lim, Bit-Na-Ri Kim, Nam-Kyun Kim, Mi-Ja Lee
  • Patent number: 10069086
    Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: September 4, 2018
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Bitnari Kim, Nam-Kyun Kim, Hong-Yeop Na, Tae-Jin Lee, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Hee-Ryong Kang, Young-Mook Lim, Hyun-Ju Kang, Doo-Hyeon Moon, Ji-Song Jun, Hee-Choon Ahn, Young-Kwang Kim, Jin-Ri Hong
  • Publication number: 20180233676
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.
    Type: Application
    Filed: April 16, 2018
    Publication date: August 16, 2018
    Inventors: Hee-Ryong Kang, Hyun-Ju Kang, Jim-Ri Hong, Doo-Hyeon Moon, Young-Mook Lim, Bit-Na-Ri Kim, Nam-Kyun Kim, Mi-Jia Lee
  • Publication number: 20180182973
    Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein at least a first host compound of the plurality of host compounds has an amine-carbazole structure substituted with naphthyl-phenyl and aryl (Formula 1), and a second host compound has a di-C-benzocarbazole structure comprising nitrogen-containing heteroaryl (Formula 2). By using the plurality of host compounds of the present disclosure, the organic electroluminescent device may have long lifespan while maintaining high efficiency at high luminance compared to the conventional organic electroluminescent device using a sole host compound.
    Type: Application
    Filed: April 25, 2016
    Publication date: June 28, 2018
    Inventors: Bitnari Kim, Hee-Ryong Kang, Young-Mook Lim, Jin-Ri Hong, Tae-Jin Lee, Sang-Hee Cho
  • Patent number: 9997723
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: June 12, 2018
    Assignee: Rohm and Haas Electronic Materials Korea Ltd
    Inventors: Hee-Ryong Kang, Hyun-Ju Kang, Jin-Ri Hong, Doo-Hyeon Moon, Young-Mook Lim, Bitnari Kim, Nam-Kyun Kim, Mi-Ja Lee
  • Patent number: 9997724
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has good color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 12, 2018
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Bitnari Kim, Hee-Ryong Kang, Hyun-Ju Kang, Jin-Ri Hong, Young-Mook Lim, Doo-Hyeon Moon
  • Publication number: 20180101074
    Abstract: A curved display panel and a manufacturing method. The method includes: providing a first substrate; forming a color resist layer on the first substrate, and forming a recessed region at a preset position of the color resist layer such; providing a second substrate; forming a spacer on the second substrate; and aligning, assembling and adhering the first substrate and the second substrate such that the spacer is embedded inside the recessed region. The present invention also provides a curved display panel. Through above way, the spacer of the curved display panel is embedded inside the recessed region such that when the curved display panel is bent, the spacer will not generate a displacement so as to reduce the light leakage phenomenon, decrease the yield rate loss of the display panel.
    Type: Application
    Filed: May 19, 2016
    Publication date: April 12, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Kecheng XIE, Ri HONG
  • Publication number: 20180033975
    Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host materials, the organic electroluminescent device of the present disclosure can show long lifespan while maintaining high luminous efficiency.
    Type: Application
    Filed: February 2, 2016
    Publication date: February 1, 2018
    Inventors: Bitnari Kim, Sang-Hee Cho, Hee-Ryong Kang, Jin-Ri Hong
  • Publication number: 20180022991
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.
    Type: Application
    Filed: January 21, 2016
    Publication date: January 25, 2018
    Inventors: Hee-Ryong Kang, Jin-Ri Hong, Bitnari Kim, Sang-Hee Cho
  • Patent number: 9859507
    Abstract: The present disclosure relates to an organic electroluminescent compound of Formula 1 (variables R1-R10 defined herein), and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device which can be operated at a lowered driving voltage, shows excellence in luminous efficiency such as current efficiency and power efficiency, and has high color purity and improved lifespan.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: January 2, 2018
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Hee-Ryong Kang, Hyun-Ju Kang, Young-Mook Lim, Mi-Ja Lee, Nam-Kyun Kim, Bitnari Kim, Jin-Ri Hong, Doo-Hyeon Moon, Su-Hyun Lee
  • Patent number: 9804465
    Abstract: Disclosed is a method for detecting defects of a TFT array substrate. The method comprises steps of: positioning an abnormal area of the TFT array substrate; separating the abnormal area from other areas of the array substrate; and treating the abnormal area as such that multiple layers in the abnormal area can be revealed one by one, and detecting the revealed layers to determine a defective layer in the abnormal area.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 31, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ri Hong, Kecheng Xie
  • Publication number: 20170301867
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has good color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 19, 2017
    Applicant: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Bitnari Kim, Hee-Ryong Kang, Hyun-Ju Kang, Jin-Ri Hong, Young-Mook Lim, Doo-Hyeon Moon
  • Publication number: 20170294590
    Abstract: The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has excellent color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound and the organic electroluminescent material of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 12, 2017
    Inventors: Doo-Hyeon Moon, Jeong-Eun Yang, Hee-Ryong Kang, Young-Mook Lim, Ji-Song Jun, Hee-Choon Ahn, Jin-Ri Hong, Su-Hyun Lee, Bitnari Kim, Tae-Jin Lee
  • Publication number: 20170279056
    Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 28, 2017
    Inventors: Bitnari Kim, Nam-Kyun Kim, Hong-Yeop Na, Tae-Jin Lee, Kyung-Hoon Choi, Jae-Hoon Shim, Young-Jun Cho, Hee-Ryong Kang, Young-Mook Lim, Hyun-Ju Kang, Doo-Hyeon Moon, Ji-Song Jun, Hee-Choon Ahn, Young-Kwang Kim, Jin-Ri Hong
  • Publication number: 20170256722
    Abstract: The present invention relates to a hole transport material and an organic electroluminescent device comprising the same. By using the hole transport material according to the present invention, an organic electroluminescent device having significantly improved operational lifespan while maintaining low driving voltage and high current and power efficiencies can be produced.
    Type: Application
    Filed: September 4, 2015
    Publication date: September 7, 2017
    Inventors: Jae-Hoon Shim, Kyoung-Jin Park, Tae-Jin Lee, Hee-Choon Ahn, Doo-Hyeon Moon, Ji-Song Jun, Jin-Ri Hong, Yoo-Jin Doh
  • Patent number: 9728463
    Abstract: Methods of manufacturing a semiconductor device are provided. The methods may include forming a fin-type active region protruding from a substrate and forming a gate insulating film covering a top surface and both sidewalls of the fin-type active region. The gate insulating film may include a high-k dielectric film. The methods may also include forming a metal-containing layer on the gate insulating film, forming a silicon capping layer containing hydrogen atoms on the metal-containing layer, removing a portion of the hydrogen atoms contained in the silicon capping layer, removing the silicon capping layer and at least a portion of the metal-containing layer, and forming a gate electrode on the gate insulating film. The gate electrode may cover the top surface and the both sidewalls of the fin-type active region.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha-jin Lim, Gi-gwan Park, Sang-yub Ie, Jong-han Lee, Jeong-hyuk Yim, Hye-ri Hong
  • Publication number: 20170160608
    Abstract: A TFT display device and a method for producing the device are disclosed. The TFT display device includes: a first metal layer, on which a first silicon nitride film is deposited; a second metal layer deposited on the first silicon nitride film and etched to form a pattern, wherein a second silicon nitride film is deposited on the second metal film; and a via hole, wherein the first metal layer and/or the second metal layer are disconnected in the overlapping region. The first silicon nitride layer and the second silicon nitride layer are etched to form the via hole On the disconnected position, and an ITO conductive film is deposited to electrically connect the disconnected position. According to the present invention, by means of the above-mentioned way, the TFT display device will have less damage by ESD. The yield rate of the product is increased, and the product competitiveness is enhanced.
    Type: Application
    Filed: May 18, 2015
    Publication date: June 8, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Kecheng XIE, Ri HONG
  • Publication number: 20170148998
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.
    Type: Application
    Filed: May 22, 2015
    Publication date: May 25, 2017
    Inventors: Hee-Ryong Kang, Hyun-Ju Kang, Jin-Ri Hong, Doo-Hyeon Moon, Young-Mook Lim, Bitnari Kim, Nam-Kyun Kim
  • Publication number: 20170139248
    Abstract: Disclosed is a method for detecting defects of a TFT array substrate. The method comprises steps of: positioning an abnormal area of the TFT array substrate; separating the abnormal area from other areas of the array substrate; and treating the abnormal area as such that multiple layers in the abnormal area can be revealed one by one, and detecting the revealed layers to determine a defective layer in the abnormal area.
    Type: Application
    Filed: June 26, 2015
    Publication date: May 18, 2017
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ri Hong, Kecheng Xie