Patents by Inventor Dong-hee Yoo

Dong-hee Yoo 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: 10840305
    Abstract: An organic light emitting diode display device in one example includes a substrate including first to third subpixels, a first electrode in each of the first to third subpixels, a hole injection layer on the first electrode in each of the first to third subpixels, first to third light emitting layers each on the hole injection layer in each of the first to third subpixels, first to third inorganic patterns which are on the first to third emitting layers in the first to third subpixels, respectively, an electron injection layer which is on the first to third inorganic patterns and is over the entire surfaces of the first to third subpixels, and a second electrode which is on the electron injection layer and is over the entire surfaces of the first to third subpixels.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 17, 2020
    Assignee: LG DISPLAY CO, LTD.
    Inventors: Dong-Hee Yoo, Seog-Shin Kang, Yeon-Suk Kang
  • Patent number: 10389781
    Abstract: An operation method of an electronic device is provided. The method includes acquiring a media contents sharing list which includes media contents retained by the electronic device and media contents retained by at least one other electronic device communicating with the electronic device, and transmitting the first media contents to the at least one other electronic device based on playback of first media contents retained by the electronic device within the media contents sharing list, and receiving the second media contents from the at least one other electronic device and outputting the received second media contents based on playback of second media contents retained by the at least one other electronic device within the media contents sharing list.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hee Yoo, Jong-Cheol Seol, Hyun-Geun Kim, Sung-Jae Park, Woo-Jin Park, Min-Suk Choi
  • Publication number: 20190198577
    Abstract: An organic light emitting diode display device in one example includes a substrate including first to third subpixels, a first electrode in each of the first to third subpixels, a hole injection layer on the first electrode in each of the first to third subpixels, first to third light emitting layers each on the hole injection layer in each of the first to third subpixels, first to third inorganic patterns which are on the first to third emitting layers in the first to third subpixels, respectively, an electron injection layer which is on the first to third inorganic patterns and is over the entire surfaces of the first to third subpixels, and a second electrode which is on the electron injection layer and is over the entire surfaces of the first to third subpixels.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 27, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Hee Yoo, Seog-Shin Kang, Yeon-Suk Kang
  • Patent number: 9324958
    Abstract: A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein the is one of and each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 26, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Han Kim, Chun-Gun Park, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, Tae-Han Park, Soon-Wook Cha, Seung-Jae Lee, In-Bum Song, Jung-Keun Kim
  • Publication number: 20150155503
    Abstract: A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein the is one of and each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventors: Do-Han Kim, Chun-Gun Park, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, Tae-Han Park, Soon-Wook Cha, Seung-Jae Lee, In-Bum Song, Jung-Keun Kim
  • Patent number: 8986853
    Abstract: A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: and each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: March 24, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Do Han Kim, Chun Gun Park, Jong-Kwan Bin, Kyung Hoon Lee, Hyun-cheol Jeong, Dong-hee Yoo, Nam Sung Cho, Jong-Hyun Park, Tae han Park, Soon Wook Cha, Seung Jae Lee, In Bum Song, Jung Keun Kim
  • Publication number: 20150067016
    Abstract: An apparatus and method for playing content in an electronic device connected through a network are provided. The electronic device includes a communication unit for connecting with a master electronic device through a network, and at least one processor, wherein the processor is configured for receiving synchronization information from the master electronic device, and determining one of a content playing time point and a position of content to be played on the basis of a receive delay with respect to the master electronic device, and the synchronization information includes at least one of clock information of the master electronic device, position information of content played in the master electronic device, start delay information, which is a time of waiting until the content is played, and audio latency information, which is a time delayed until the content is output after the content is played in the master electronic device.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Sung-Jae Park, Hyun-Geun Kim, Jong-Cheol Seol, Dong-Hee Yoo
  • Publication number: 20150067054
    Abstract: An operation method of an electronic device is provided. The method includes acquiring a media contents sharing list which includes media contents retained by the electronic device and media contents retained by at least one other electronic device communicating with the electronic device, and transmitting the first media contents to the at least one other electronic device based on playback of first media contents retained by the electronic device within the media contents sharing list, and receiving the second media contents from the at least one other electronic device and outputting the received second media contents based on playback of second media contents retained by the at least one other electronic device within the media contents sharing list.
    Type: Application
    Filed: July 16, 2014
    Publication date: March 5, 2015
    Inventors: Dong-Hee YOO, Jong-Cheol SEOL, Hyun-Geun KIM, Sung-Jae PARK, Woo-Jin PARK, Min-Suk CHOI
  • Patent number: 8835020
    Abstract: A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein at least two of the R1, the R2, the R3, and the R4 are selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group, and the R5 is selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: September 16, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Jae Lee, In-Bum Song, Jung-Keun Kim, Do-Han Kim, Chun-Gun Park, Hyoung-Yun Oh, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, In-Sun Yoo, Tae-Han Park, Soon-Wook Cha
  • Patent number: 8384095
    Abstract: Disclosed are an organic light emitting display device with improved yield and processing efficiency, which includes an interlayer capable of being separated into a hydrophilic region and a hydrophobic region on top of a hole injection layer in an organic light emitting device and a plurality of layers including a light emitting layer and which is fabricated without using a shadow mask, as well as a method for manufacturing the same. The manufacturing method includes preparing a substrate having a plurality of pixel regions defined in a matrix form, arranging an anode in each of the pixel regions, forming a hole injection layer on the anode by the solution process, forming an interlayer with hydrophobic properties on the hole injection layer by a solution process, selectively UV irradiating the interlayer to define a hydrophilic region on the interlayer, forming a light emitting layer on the interlayer by the solution process, and arranging a cathode on the substrate having the light emitting layer.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 26, 2013
    Assignee: LG Display Co. Ltd.
    Inventors: Kyung-Hoon Lee, Jong-Hyun Park, Tae-Han Park, Hyun-Cheol Jeong, Dong-Hee Yoo
  • Publication number: 20100164371
    Abstract: An electron transporting-injection compound, represented by following Formula 1: wherein each of the R1, the R2 and the R3 is selected from substituted or non-substituted aromatic group, substituted or non-substituted heterocyclic group, or of substituted or non-substituted aliphatic group, and at least one of the R2 and the R3 is selected from substituted or non-substituted heterocyclic group.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 1, 2010
    Inventors: Hyun Cheol JEONG, Dong Hee YOO, Jong Hyun PARK, Tae Han PARK, Kyung Hoon LEE
  • Publication number: 20100155760
    Abstract: Disclosed are an organic light emitting display device with improved yield and processing efficiency, which includes an interlayer capable of being separated into a hydrophilic region and a hydrophobic region on top of a hole injection layer in an organic light emitting device and a plurality of layers including a light emitting layer and which is fabricated without using a shadow mask, as well as a method for manufacturing the same. The manufacturing method includes preparing a substrate having a plurality of pixel regions defined in a matrix form, arranging an anode in each of the pixel regions, forming a hole injection layer on the anode by the solution process, forming an interlayer with hydrophobic properties on the hole injection layer by a solution process, selectively UV irradiating the interlayer to define a hydrophilic region on the interlayer, forming a light emitting layer on the interlayer by the solution process, and arranging a cathode on the substrate having the light emitting layer.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Inventors: Kyung-Hoon Lee, Jong-Hyun Park, Tae-Han Park, Hyun-Cheol Jeong, Dong-Hee Yoo
  • Publication number: 20100141124
    Abstract: A blue fluorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: wherein at least two of the R1, the R2, the R3, and the R4 are selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group, and the R5 is selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 10, 2010
    Inventors: Seung-Jae Lee, In-Bum Song, Jung-Keun Kim, Do-Han Kim, Chun-Gun Park, Hyoung-Yun Oh, Jong-Kwan Bin, Kyung-Hoon Lee, Hyun-Cheol Jeong, Dong-Hee Yoo, Nam-Sung Cho, Jong-Hyun Park, In-Sun Yoo, Tae-Han Park, Soon-Wook Cha
  • Publication number: 20100133524
    Abstract: A red phosphorescent compound includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: and each of R1 to R4 is one of the group consisting of hydrogen atom (H), C1 to C6 substituted or non-substituted alkyl group, C1 to C6 substituted or non-substituted alkoxy group, and halogen atom.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 3, 2010
    Inventors: Do Han Kim, Chun Gun Park, Jong Kwan Bin, Kyung Hoon Lee, Hyun Cheol Jeong, Dong Hee Yoo, Nam Sung Cho, Jong-Hyun Park, Tae Han Park, Soon Wook Cha, Seung Jae Lee, In Bum Song, Jung Keun Kim
  • Patent number: 7058420
    Abstract: Disclosed are a power automation system using a TRS network and a control method thereof which can reduce the power failure time and power failure areas when an obstacle is raised by providing a pure radio transmission path using a TRS network, in which base transceiver subsystems mostly stand on an eminence and a high output service can be provided, between a control center computer and power equipment so that the remote control center computer can promptly control the power equipment and the obstacle raised in the power equipment.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: June 6, 2006
    Assignee: Korea Electric Power Corporation
    Inventors: Dong Hee Yoo, Kang Sik Jung
  • Publication number: 20030162538
    Abstract: Disclosed are a power automation system using a TRS network and a control method thereof which can reduce the power failure time and power failure areas when an obstacle is raised by providing a pure radio transmission path using a TRS network, in which base transceiver subsystems mostly stand on an eminence and a high output service can be provided, between a control center computer and power equipment so that the remote control center computer can promptly control the power equipment and the obstacle raised in the power equipment.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 28, 2003
    Applicant: Korea Electric Power Corporation
    Inventors: Dong Hee Yoo, Kang Sik Jung
  • Patent number: 6318437
    Abstract: A tape feeder for a part mounter including a guide frame into which first through third guide portions and a stripper are incorporated, a driving motor installed on the rear surface of the guide frame, first through third gears for transmitting the power of the driving motor, a sprocket coaxially installed on the third gear, the sprocket having teeth formed on the outer circumferential surface to be inserted into grooves formed on the tape having parts attached thereto and a plurality of slots formed along the circumference of the sprocket, a cover take-up apparatus assembly having a first pulley installed on one gear among the first and second gears, a belt hung on the first pulley, a second pulley which rotates by a driving force transmitted via the belt, and a take-up reel installed coaxially with respect to the second pulley, a cover tension apparatus assembly having an axle gear interlocked with the third gear, a peel roller which is installed coaxially with the axle gear and rotates, and a pinch roller
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: November 20, 2001
    Assignee: Samsung Aerospace Industries, Ltd.
    Inventors: Dong-hee Yoo, Byung-ho Chang