Patents by Inventor Ki-Yeon Lee

Ki-Yeon Lee 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: 20170362502
    Abstract: The present invention relates to a quantum dot composite and a photoelectric device comprising the same, and more particularly, to a quantum dot composite having excellent optical characteristics, thereby improving the light efficiency of a photoelectric device, and a photoelectric device comprising the same. To this end, the present invention provides a quantum dot composite and a photoelectric device comprising the same, the quantum dot composite comprising: a matrix layer; a plurality of quantum dots dispersed inside the matrix layer; and a plurality of scattering particles dispersed inside the matrix layer in a manner of being disposed between the plurality of quantum dots, wherein the scattering particles have a hollow formed therein, thereby showing multiple refractive indices.
    Type: Application
    Filed: December 23, 2015
    Publication date: December 21, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Yoon Seuk Oh, Kyung Jin Lee, Choon Bong Yang, Seo Yeong Cho
  • Publication number: 20170299792
    Abstract: The present invention relates to a substrate for color conversion, a manufacturing method therefor, and a display device comprising the same and, more specifically, to a substrate for color conversion for not only securing the long-term stability of quantum dots but also exhibiting excellent color conversion efficiency, a manufacturing method therefor, and a display device comprising the same. To this end, the present invention provides a substrate for color conversion, a manufacturing method therefor, and a display device, the substrate for color conversion comprising: a thin plate glass; a coating layer for quantum dots formed on one surface of the thin plate glass; a light guide plate disposed to face the coating layer for quantum dots, a light emitting diode being disposed on the sides thereof; and a sealing material which is formed between the thin plate glass and the light guide plate and which blocks the coating layer for quantum dots from the outside.
    Type: Application
    Filed: August 7, 2015
    Publication date: October 19, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Yoon Seuk Oh, Hyung Soo Moon, Ki Yeon Lee, Young Suk Lee, Nae Young Jung, Yoon Young Kwon, Choon Bong Yang
  • Publication number: 20170244009
    Abstract: The present invention relates to a substrate for the color conversion of a light-emitting diode and a manufacturing method therefor and, more specifically, to a substrate for the color conversion of a light-emitting diode and a manufacturing method therefor, which enable a quantum dot (QD) and a structure, in which the QD is supported, to have a color conversion function for implementing white light.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 24, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon LEE, Yoon Seuk OH, Hyung Soo MOON
  • Publication number: 20170197867
    Abstract: The present invention relates to a hermetic sealing method and a hermetic-sealed substrate package and, more specifically, to a hermetic sealing method for hermetically sealing the space between two substrates by a glass frit paste, and a substrate package manufactured thereby. To this end, the present invention provides a hermetic sealing method comprising: a substrate preparation step for preparing a first substrate and a second substrate smaller than the first substrate; a glass frit paste applying step for applying the glass frit paste such that the glass frit paste adheres to the upper periphery of the first substrate and a side of the second substrate while the first and second substrates are disposed to face each other; and a laser irradiation step for irradiating a laser beam to the applied glass frit paste to hermetically seal the space between the first and second substrates.
    Type: Application
    Filed: May 11, 2015
    Publication date: July 13, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Choon Bong Yang, Ki Yeon Lee, Bo Mi Kim, Jhee Mann Kim, Yoon Seuk Oh
  • Patent number: 9688571
    Abstract: A method of fabricating a light extraction substrate for an organic light-emitting device which can increase the extraction efficiency of light emitted from the organic light-emitting device, thereby improving the overall luminous efficiency of the organic light-emitting device. Water glass is applied on a surface of a glass substrate. The water glass applied on the glass substrate is heat-treated such the surface of the glass substrate is roughened. The heat-treated water glass is removed from the glass substrate. A planarization layer of a glass frit is formed on the glass substrate from which the water glass has been removed.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 27, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Kyung Min Yoon, Young Suk Lee, Jae Ho Lee
  • Patent number: 9666835
    Abstract: The present invention relates to a light extraction substrate for an organic light-emitting device, a manufacturing method therefor, and an organic light-emitting device comprising the same, and more specifically, to a light extraction substrate for an organic light-emitting device which can improve the light extraction efficiency of the organic light-emitting device, a manufacturing method therefor, and an organic light-emitting device comprising the same. To this end, the present invention provides a light extraction substrate for an organic light-emitting device, a manufacturing method therefor, and an organic light emitting device comprising the same. The light extraction substrate for the organic light-emitting device comprises: a base substrate; a matrix layer formed on the base substrate and made of frit; and a glass fiber structure arranged inside the matrix layer, wherein the matrix layer and the glass fiber structure form an inner light extraction layer of the organic light-emitting device.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: May 30, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Kyung Min Yoon, Ki Yeon Lee, Young Suk Lee, Jae Ho Lee
  • Publication number: 20170077363
    Abstract: The present invention relates to a method for manufacturing a light-emitting diode package, and more specifically to a method for manufacturing a light-emitting diode package that does not need an additional colour conversion frit heat-treatment process and cutting process after bonding between the colour conversion frit and a light-emitting diode chip. To this end, the present invention provides a method for manufacturing a light-emitting diode package chatacterized in that the present invention comprises: a colour conversion frit formation step for forming a colour conversion frit in which phosphor is included on a substrate; a colour conversion frit transcription step for transcribing the colour conversion frit formed on the substrate from the substrate to a transcription film; and a colour conversion frit bonding step for bonding the colour conversion frit transcribed on the transcription film onto a light-emitting diode package.
    Type: Application
    Filed: March 25, 2015
    Publication date: March 16, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Yoon Seuk Oh, Ki Yeon Lee, Hyung Soo Moon, Bo Mi Kim, Jhee Mann Kim, Cheol Min Park, Choon Bong Yang
  • Publication number: 20170040507
    Abstract: The present invention relates to a substrate for changing the color of a light emitting diode and a method for producing same and, more particularly, to a substrate for changing the color of a light emitting diode and a method for producing same, wherein the substrate may be hermetically sealed so that quantum dots (QD) contained inside may be completely protected from the outside and emission efficiency of the light emitting diode may be enhanced. Thus, the present invention provides a substrate for changing the color of a light emitting diode, and a method for producing same, wherein the substrate is characterized by including: a first glass substrate disposed on the light emitting diode; a second glass substrate formed opposite to the first substrate; a structure which is disposed between the first substrate and the second substrate, has hollows, and includes a material having a coefficient of thermal expansion (CTE) of 30-80×10?7/° C.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 9, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Yoon Seuk Oh, Jhee Mann Kim, Hyung Soo Moon, Choon Bong Yang
  • Publication number: 20170040511
    Abstract: The present invention relates to a color-converting substrate of a light-emitting diode and a method for producing same, and more specifically to a color-conversion substrate of a light-emitting diode capable of completely protecting the quantum dots (QDs) supported in the interior from the exterior as hermetic sealing is possible, and a method for producing the color-converting substrate.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 9, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Jhee Mann Kim, Hyung Soo Moon, Yoon Seuk Oh, Choon Bong Yang
  • Publication number: 20170025584
    Abstract: The present invention relates to a color-converting substrate of a light-emitting diode and a method for producing same, and more specifically to a color-converting substrate of a light-emitting diode capable of completely protecting the quantum dots (QD) supported in the interior from the exterior as hermetic sealing is possible, and a method for producing the color-converting substrate.
    Type: Application
    Filed: March 17, 2015
    Publication date: January 26, 2017
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Hyung Soo Moon, Yoon Seuk Oh, Jhee Mann Kim, Choon Bong Yang
  • Publication number: 20160168022
    Abstract: A method of fabricating a light extraction substrate for an organic light-emitting device which can increase the extraction efficiency of light emitted from the organic light-emitting device, thereby improving the overall luminous efficiency of the organic light-emitting device. Water glass is applied on a surface of a glass substrate. The water glass applied on the glass substrate is heat-treated such the surface of the glass substrate is roughened. The heat-treated water glass is removed from the glass substrate. A planarization layer of a glass frit is formed on the glass substrate from which the water glass has been removed.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Applicant: Corning Precision Materials Co., Ltd.
    Inventors: Ki Yeon Lee, Kyung Min Yoon, Young Suk Lee, Jae Ho Lee
  • Publication number: 20160164041
    Abstract: The present invention relates to a light extraction substrate for an organic light-emitting device, a manufacturing method therefor, and an organic light-emitting device comprising the same, and more specifically, to a light extraction substrate for an organic light-emitting device which can improve the light extraction efficiency of the organic light-emitting device, a manufacturing method therefor, and an organic light-emitting device comprising the same. To this end, the present invention provides a light extraction substrate for an organic light-emitting device, a manufacturing method therefor, and an organic light emitting device comprising the same. The light extraction substrate for the organic light-emitting device comprises: a base substrate; a matrix layer formed on the base substrate and made of frit; and a glass fibre structure arranged inside the matrix layer, wherein the matrix layer and the glass fibre structure form an inner light extraction layer of the organic light-emitting device.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 9, 2016
    Applicant: CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Kyung Min Yoon, Ki Yeon Lee, Young Suk Lee, Jae Ho Lee
  • Publication number: 20130215554
    Abstract: An electric double layer capacitor and a method for manufacturing the same, in which one or more projections are formed on an inner bottom surface of a lower case, which is a concave container made of ceramic, in a the process of sequentially stacking a lower electrode, a separator, and an upper electrode in the lower case and covering the lower case with a sealing plate. It is possible to eliminate the process of injecting a bonding liquid and strongly connect the lower electrode and the upper electrode to the lower case and the sealing plate, respectively, by means of the projections, thus preventing the occurrence of a short circuit and reducing the equivalent series resistance.
    Type: Application
    Filed: August 30, 2012
    Publication date: August 22, 2013
    Applicant: ROSWIN, INC.
    Inventors: Ho Won SON, Jung Won LEE, Ki Yeon LEE
  • Publication number: 20130213565
    Abstract: A flexible substrate for a display panel and a manufacturing method thereof is disclosed. The flexible substrate may include a first film having a glass cloth located within a first heat-resistant resin, and a second film laminated on at least one side of the first film. The second film may include a second heat-resistant resin. The flexible substrate may further include an intermediate material between the first film and the second film. The intermediate material may be applied to an outer part of the first film and may adhere the first film to the second film.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Applicant: Cheil Industries Inc.
    Inventors: Ki Yeon LEE, Kyeong Taek JUNG, Kyu Dong LEE
  • Patent number: 8179031
    Abstract: A surface light source includes a plate type light source body having a sealed discharging space formed therein, a plate type electrode unit having a plurality of regions adjacent to at least one major surface of the light source body, and a multiple voltage applying unit operable to apply voltages independently to each of the plurality of regions. In this way, brightness of the surface light source can be controlled independently in each of the plurality of regions and a local dimming for a surface light source can be realized.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: May 15, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Seok Mo Ban, Ki Yeon Lee, Kyeong Taek Jung, Hyung Bin Youn, Keun Seok Lee, Dong Hee Lee, Won Do Kee, Yong Keun Jee
  • Publication number: 20100272973
    Abstract: A flexible substrate for a display panel and a manufacturing method thereof is disclosed. The flexible substrate may include a first film having a glass cloth located within a first heat-resistant resin, and a second film laminated on at least one side of the first film. The second film may include a second heat-resistant resin. The flexible substrate may further include an intermediate material between the first film and the second film. The intermediate material may be applied to an outer part of the first film and may adhere the first film to the second film.
    Type: Application
    Filed: October 21, 2009
    Publication date: October 28, 2010
    Applicant: SAMSUNG CORNING PRECISION GLASS CO., LTD.
    Inventors: Ki Yeon LEE, Kyeong Taek JUNG, Kyu Dong LEE
  • Publication number: 20080143263
    Abstract: There is provided a surface light source device comprising: a light source body including a plurality of discharge spaces therein, a first electrode and a second electrode applying a first voltage into the discharge spaces and arranged parallel to each other, and a third electrode applying a second voltage into the discharge spaces and facing the first and second electrodes and arranged in a direction of crossing the first and second electrodes. In accordance with the present invention, the discharge firing voltage and sustain voltage of the surface light source device can be lowered by applying the first and second voltage to the electrodes. Further, it is possible to divisionally drive the surface light source device by sequentially and/or selectively applying a voltage to divided parts of each electrode.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 19, 2008
    Applicant: Samsung Corning Co., Ltd.
    Inventors: Keun Seok Lee, Kyeong Taek Jung, Ki Yeon Lee, Hyung Bin Youn, Seok Mo Ban, Kyeong Taek Song
  • Publication number: 20080054779
    Abstract: There is provided a substrate for a surface light source device, comprising a first secondary electron emission layer including crystalline magnesium oxide (MgO) powder on a surface of the substrate. There is also provided a surface light source device comprising a first substrate and a second substrate facing each other at a predetermined distance between which a discharge space is formed; and an electrode to apply a discharge voltage to the discharge space, wherein a first secondary electron emission layer including crystalline MgO powder is formed on a surface of at least one of the first substrate and the second substrate. Preferably, the crystalline MgO powder is obtained by grinding an MgO sputtering target.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: Samsung Corning Co., Ltd.
    Inventors: Kyeong Taek Jung, Ki Yeon Lee, Hyung Bin Youn, Keun Seok Lee, Dong Hee Lee
  • Publication number: 20080055883
    Abstract: A surface treatment layer containing alkali metal oxide is formed on at least one of substrates to form a body of a surface light source. The surface treatment layer may be formed of oxide by coating at least one of cesium, potassium, rubidium, and compound thereof on the surface of the substrate and by performing heat treatment to the substrate. The surface treatment layer containing alkali metal oxide easily emits secondary electrons and reduces firing voltage of the surface light source. Black start is improved, discharging efficiency is increased, and heat generated during the operation is decreased.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Applicant: Samsung Corning Co., Ltd.
    Inventors: Ki Yeon Lee, Kyeong Taek Jung, Hyung Bin Youn, Keun Seok Lee, Dong Hee Lee, Seok Mo Ban, Sergey K. Evstropiev, Kang Min Kim, Tae Ho Park
  • Publication number: 20070284988
    Abstract: There is provided a flat electrode for a surface light source, in which a conductive electrode is formed in a fine strip-shaped pattern on a plane. The flat electrode may comprise a base layer, an electrode pattern formed on the base layer, and a protection layer formed on the electrode pattern. There is also provided an ultra thin surface light source device which comprises: a first substrate and a second substrate which are spaced apart from each other at a predetermined interval; and a first surface electrode formed on the first substrate, and a second surface electrode formed on the second substrate. The surface light source device may further comprise a medium layer formed in at least one of spaces between the first substrate and the first surface electrode and between the second substrate and the second surface electrode.
    Type: Application
    Filed: March 9, 2007
    Publication date: December 13, 2007
    Applicant: SAMSUNG CORNING CO., LTD.
    Inventors: Kyeong Taek JUNG, Hyung Bin Youn, Seok Mo Ban, Dai Hong Jung, Ki Yeon Lee, Keun Seok Lee, Dong Hee Lee, Eun Sook Kwon