Patents by Inventor Dae Seo

Dae Seo 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: 20160133805
    Abstract: A method of manufacturing a light-emitting apparatus includes disposing a substrate on a support; disposing a light-emitting package including a light-emitting device on the substrate so as to allow the light-emitting package to be positioned at a target position on the substrate; applying energy to the light-emitting package to make the light-emitting device emit light; and analyzing the light that is emitted from the light-emitting device due to the energy, and determining a position where the light-emitting package is actually disposed. Thus, the light-emitting apparatus may be easily and inexpensively manufactured, and may generate a limited number of spots and provide improved uniform brightness.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Dae-seo PARK, Ka-ram LEE, Choo-ho KIM
  • Publication number: 20150355053
    Abstract: A method for inspecting a light source module for defects includes preparing a board on which a light emitting device and a lens covering the light emitting device are installed. A current is applied to the light emitting device to turn on the light emitting device. The lens is imaged with the light emitting device turned on. A central symmetry denoting a symmetry of light emission distribution from the center of the lens is calculated based on the obtained image, and the calculated central symmetry is compared with a reference value to determine whether unsymmetrical light emission distribution has occurred. Various other methods and apparatuses for inspecting light source modules are additionally provided.
    Type: Application
    Filed: December 23, 2014
    Publication date: December 10, 2015
    Inventors: Won Soo JI, Oh Seok KWON, Dae Seo PARK, Ka Ram LEE
  • Patent number: 9136478
    Abstract: An organic light emitting device includes an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode laminated in this order, wherein the hole injection layer comprises a mixture of an inorganic material comprising at the least of one of an alkali metal oxide, an alkaline earth metal oxide, a halogen compound of an alkali metal, a halogen compound of an alkaline earth metal, and an organic material comprising at least one of compounds represented by Formula 1: wherein R1, R2, R3, R4, R5 and R6 are each independently selected from a substituted or unsubstituted C6 to C30 aromatic group and a C5 to C29 heterocyclic group containing N, S, or O, wherein the substituent is selected from a C1 to C6 aliphatic group and a C6 to C12 aromatic group.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 15, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Dae Seo, Ki-Woog Song
  • Publication number: 20150188074
    Abstract: An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are disclosed. The organic electroluminescent device includes first and second electrodes facing each other on a substrate, first and second emission layers formed between the first and second electrodes, a hole transport layer formed between the first electrode and the first emission layer, an electron transport layer formed between the second electrode and the second emission layer, and at least one emission control layer formed between the first and second emission layers and having the same properties as those of at least any one of the hole transport layer and the electron transport layer.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 2, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jeong-Haeng Heo, Jae-Man Lee, Jeong-Dae Seo, Se-Ung Kim
  • Patent number: 9023489
    Abstract: Disclosed herein are red phosphorescent compounds of the following formula: wherein ?includes a phenyl part and a quinoline part, each ring of the phenyl part having at least one substituent selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups and ?is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3 -propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5 -hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: May 5, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Keun Kim, Jeong Dae Seo, Hyun Cheol Jeong, Chun Gun Park, Jong Kwan Bin, Kyung Hoon Lee, Sung Hoon Pieh
  • Publication number: 20150077361
    Abstract: Provided are an electrode plate using an ITO, and an electrochromic plate, an electrochromic mirror and a display device using the electrode plate, the electrode plate including a transparent electrode layer, a metal mesh pattern on the transparent electrode layer, an insulating layer provided in a space defined by an upper surface of the transparent electrode layer and the metal mesh pattern and between metal components of the metal mesh pattern, and a base substrate on the metal mesh pattern and the insulating layer.
    Type: Application
    Filed: July 31, 2014
    Publication date: March 19, 2015
    Inventors: Young Dae SEO, Hyo Won SON, Joo Hyun HWANG
  • Publication number: 20150008103
    Abstract: A short drop apparatus for a vehicle door may include a door handle rotatably mounted to a door panel at a front side thereof and having an inner engaging part at a rear side thereof, a door lever including a guide to be engaged with the engaging part of the door handle to operate in response to a rotation of the door handle, a switch positioned in front of the door lever to selectively transmit a signal to open or close a window glass with a turning ON or OFF state of the switch, and a switch lever engaged to the switch and coming into contact with a front side of the door lever at front and rear sides of the switch lever, respectively, the switch lever operating simultaneously with the door lever when the door handle may be manipulated, to turn on the switch.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 8, 2015
    Applicant: Hyundai Motor Company
    Inventors: Yong Dae SEO, Kyoung Ho CHO
  • Patent number: 8928222
    Abstract: A an organic electroluminescent display device includes an array substrate including a driving thin film transistor in a pixel region on a first substrate; an opposing substrate including an organic electroluminescent diode in the pixel region on a second substrate; an adhesive layer filling a space between the array substrate and the opposing substrate; and a connection spacer to electrically connect the organic electroluminescent diode with the driving thin film transistor.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: January 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Myung-Seop Kim, Jeong-Dae Seo, Jong-Moo Lee, Hyun-Ju Choi, Chang-Wook Han, Yoon-Heung Tak
  • Publication number: 20140285815
    Abstract: An apparatus for measurement of a three-dimensional (3D) shape includes a lens unit transmitting slit beams to a plurality of measurement objects, a light source unit irradiating the plurality of slit beams to the lens unit at different angles, an imaging unit obtaining images of the plurality of measurement objects formed by the slit beams irradiated on the plurality of measurement objects, and a calculation processing unit generating information regarding a 3D shape of the plurality of measurement objects from the images obtained by the imaging unit.
    Type: Application
    Filed: January 31, 2014
    Publication date: September 25, 2014
    Inventors: Dae Seo PARK, Dae Gwan KIM, Won Soo JI, Choo Ho KIM
  • Patent number: 8796676
    Abstract: A tandem white organic light emitting device with improved efficiency, voltage and lifetime includes a first electrode and a second electrode opposing each other, a charge generation layer formed between the first electrode and the second electrode, a first stack disposed between the first electrode and the charge generation layer, the first stack including a first light emitting layer emitting blue light, and a second stack disposed between the charge generation layer and the second electrode, the second stack including a second light emitting layer including one or more hosts doped with a phosphorescent dopant emitting light having a longer wavelength than blue light, wherein the charge generation layer includes an n-type charge generation layer doped with a metal and a p-type charge generation layer made of an organic material.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 5, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Hoon Pieh, Chang-Wook Han, Hong-Seok Choi, Jeong-Dae Seo, Ki-Woog Song
  • Publication number: 20140183475
    Abstract: An organic light emitting display device includes a first electrode and a second electrode disposed on a substrate opposite to each other, a first stack including a hole injection layer, a first hole transport layer, a first light emitting layer, and a first electron transport layer sequentially stacked on the first electrode, a second stack including a second hole transport layer, a second light emitting layer, and a second electron transport layer sequentially stacked between the first stack and the second electrode, and a charge generation layer disposed between the first stack and the second stack and including an N-type charge generation layer and a P-type charge generation layer to control charge balance between the first and second stacks. The P-type charge generation layer is doped with 1% to 20% of a hole transport material based on a volume of the P-type charge generation layer.
    Type: Application
    Filed: December 5, 2013
    Publication date: July 3, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki-Woog Song, Chang-Wook Han, Hong-Seok Choi, Sung-Hoon Pieh, Jeong-Dae Seo, Seok-Joon Oh, Youn-Seok Kam
  • Publication number: 20140183496
    Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a charge generation layer formed between first and second electrodes, a first light emitting unit including a first emission layer formed between the first electrode and the charge generation layer, a hole transport layer supplying holes from the first electrode to the first emission layer, and a second light emitting unit including a second emission layer formed between the second electrode and the charge generation layer, a hole transport layer supplying holes from the charge generation layer to the second emission layer, wherein a total thickness of the hole transport layer of the first light emitting unit is greater than that of the hole transport layer of the second light emitting unit.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong-Haeng HEO, Jeong-Dae SEO
  • Publication number: 20140117322
    Abstract: An organic light emitting display panel includes a light emitting diode array substrate and an encapsulation substrate adhered to the light emitting array diode substrate by an adhesive film. The light emitting array diode substrate includes a driving thin film transistor formed on a substrate, an organic light emitting diode including a first electrode connected to the driving thin film transistor, an organic emission layer formed on the first electrode, and a second electrode formed on the organic emission layer, and first and second passivation layers formed on the second electrode. In this regard, the first passivation layer is formed of an organic compound having at least one of the structural formulae described in Formula 1 below: wherein R1, R2, R3, R4, R5, and R6 are each independently selected from substituted or unsubstituted C6-C40 aromatic groups.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 1, 2014
    Applicant: LG DASPLAY CO., LTD.
    Inventors: Jeong-Dae Seo, Chang-Wook Han, Yoon-Heung Tak, Hyo-Seok Kim
  • Patent number: 8647753
    Abstract: Disclosed is an organic electroluminescent device comprising a structure having an anode, an emitting layer, and a cathode stacked therein, wherein a fluorescent compound represented by Formula 1 is used as a emitting material of the emitting layer or used as a dopant of the emitting layer: wherein A1 and A2 are independently selected from a substituted or unsubstituted C1-C6 aliphatic group, a C6-C20 aromatic group and a C5-C19 heterocyclic group containing N, S or O, A3 is selected from a substituted or unsubstituted C1-C6 aliphatic group, a C6-C20 aromatic group, a C5-C19 heterocyclic group containing N, S or O, and a hydrogen atom, and substituents of A1, A2 and A3 are respectively one or more and the substituent is selected from the group consisting of C1-C10 alkyl, C1-C1 alkoxy, C1-C10 alkylamino, C1-C10 alkylsilyl, a halogen atom, C6-C10 aryl, C6-C10 aryloxy, C6-C10 arylamino, C6-C10 arylsilyl and a hydrogen atom.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: February 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Keun Kim, Jeong Dae Seo, Hyun Cheol Jeong, Chun Gun Park, Jong Kwan Bin
  • Patent number: 8623519
    Abstract: A red phosphorescent compound of Formula I: wherein is and R1, R2, R3, R4 and R5 are as defined in the specification.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: January 7, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Keun Kim, Jeong Dae Seo, Kyung Hoon Lee, Chun Gun Park, Hyun Cheol Jeong, Jong Kwan Bin, Sung Hoon Pieh
  • Patent number: 8563143
    Abstract: An organic electroluminescent (EL) device having improved efficiency and service life is provided. The organic electroluminescent device has a stack structure including an emitting layer and an electron-transport layer positioned between an anode and a cathode. The electron-transport layer includes a first layer adjacent to the emitting layer which may be a mixture of at least two materials, and a second layer adjacent to the cathode which may be a mixture of at least two materials. The mixture of at least two materials may be a mixture of an organic compound and one or more other organic compounds, or may be a mixture of a metal or inorganic compound and one or more other metal or inorganic compounds, or may be a mixture of one or more organic compounds and one or more metal or inorganic compounds.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: October 22, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Tae Park, Myung Seop Kim, Jeong Dae Seo, Eun Soo Cha, Jae Man Lee, Chang Je Sung
  • Patent number: 8563144
    Abstract: An organic electroluminescent (EL) device is provided which uses an electron-transport layer including hole blocking capability. The device includes a stack structure, with an emitting layer and an electron-transport layer provided between an anode and a cathode. The electron-transport layer is a mixture of at least two materials. This mixture may include an organic compound and one or more other organic compounds, or may include a metal or inorganic compound and one or more other metal or inorganic compounds, or may include one or more organic compounds and one or more metal or inorganic compounds. By incorporating a hole blocking capability into the electron-transport layer, structure and fabrication of the device is simplified and efficiency is increased.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: October 22, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Myung Seop Kim, Jeong Dae Seo, Jac Man Lee, Kyung Hoon Lee, Chang Je Sung, Sang Tac Park, Eun Soo Cha
  • Patent number: 8548281
    Abstract: Provided is an electro-optic modulating device. The electro-optic modulating device includes an optical waveguide with a vertical structure and sidewalls of the vertical structure are used to configure a junction.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: October 1, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gyungock Kim, Jeong Woo Park, Jongbum You, Sang Gi Kim, Sanghoon Kim, In Gyoo Kim, Jiho Joo, Duk Jun Kim, Dongwoo Suh, Sahnggi Park, Ki Seok Jang, Junghyung Pyo, Kap-Joong Kim, Do Won Kim, Dae Seo Park
  • Patent number: 8538546
    Abstract: The present invention relates to a device for generating a signal and method for controlling operation of the same. The present invention provides a device for generating a signal, which includes an electrode, if connected to an external power source, supplied with a voltage from the external power source, a signal generating unit having a plurality of terminals, the signal generating unit deciding whether to operate the device according to a size of a voltage applied to a first terminal among a plurality of the terminals, the signal generating unit outputting a prescribed signal according to the decision, and a control circuit, if the electrode is connected to a plurality of the terminals, controlling a voltage applied to a plurality of the terminals. Accordingly, the present invention is able to control whether to operate a signal generating device using an external power source.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: September 17, 2013
    Assignee: Intromedic Co., Ltd
    Inventors: Han Bo Shim, Won Woo Cho, Jung Jin Hwang, Kwang Seop Kim, Young Dae Seo, Han Jung, Byung Hyuk Kim, Yong Un Kim
  • Patent number: D706589
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 10, 2014
    Inventor: Young Dae Seo