Patents by Inventor Cheol-Lae Roh

Cheol-Lae Roh 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: 20150108443
    Abstract: An organic light-emitting apparatus including: a substrate; an organic light-emitting device disposed on the substrate and including a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode; and an encapsulation layer provided to cover the organic light-emitting device. The encapsulation layer includes a first inorganic layer including a first fracture point, and a first fracture control layer provided on the first inorganic layer to seal the first fracture point.
    Type: Application
    Filed: July 15, 2014
    Publication date: April 23, 2015
    Inventors: Myung-Soo HUH, Jae-Hyun KIM, Jin-Kwang KIM, Cheol-Lae ROH, Suk-Won JUNG, Cheol-Min JANG
  • Patent number: 8986783
    Abstract: A method of depositing a material on a substrate is provided for use in manufacturing electronic and display devices such as semiconductors, liquid crystal displays, and organic light emitting diode displays. A deposition material stored in a first deposition source section is heated to evaporate the deposition material. A second deposition source section, which is separate from the first deposition source section, is cooled. The first deposition source section is cooled, and deposition material stored in a second deposition source section is heated so as to alternately supply evaporated deposition material from the first and second deposition source sections to a feed section. The evaporated deposition material from the feed section is supplied to a nozzle section. A substrate can be provided to receive the evaporated deposition material from the nozzle section. A thin film of deposition material can then be formed on the substrate.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suk-Won Jung, Seung-Ho Choi, Kang-Il Lee, Hyun-Keun Song, Cheol-Lae Roh
  • Patent number: 8957582
    Abstract: An organic light-emitting display device includes a first substrate including an organic light-emitting diode and a plurality of electrodes connected to the organic light-emitting diode, the plurality of electrodes extending on the first substrate along a first direction toward an edge of the first substrate, a second substrate connected to the first substrate, the second substrate being shorter than the first substrate and exposing a portion of the plurality of electrodes on the first substrate, a sealing material disposed between the first substrate and the second substrate to surround the organic light-emitting diode, and an electrode protecting layer partially covering the exposed portion of the plurality of electrodes on the first substrate, a first side of the electrode protecting layer being between the first substrate and the second substrate, and a second side of the electrode protecting layer protruding beyond the second substrate.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: February 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Kyu Lim, Hyun-Chul Lee, Jae-Seok Park, Cheol-Lae Roh, Jang-Hwan Shin, Yong-Jin Lee
  • Publication number: 20140373784
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one embodiment, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventors: Min-Gyu SEO, Sang-Jin HAN, Cheol-Lae ROH, Jae-Hong AHN
  • Patent number: 8864543
    Abstract: A sealing apparatus and a method of manufacturing a flat display device using the sealing apparatus. The sealing apparatus to attach a first substrate and a second substrate to each other using an attachment member disposed between the first and second substrates, the sealing apparatus comprises a stage on which the first substrate is seated, a halogen lamp irradiating light, and a reflector reflecting light irradiated from the halogen lamp to the attachment member.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Han Park, Hyung-Sik Kim, Joon-Hyung Kim, Seung-Ho Myoung, Jong-Dae Kim, Cheol Lae Roh
  • Patent number: 8845807
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one embodiment, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate to the crucible, the nozzle section, and the heater.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Gyu Seo, Sang-Jin Han, Cheol-Lae Roh, Jae-Hong Ahn
  • Patent number: 8835803
    Abstract: A laser cutting method includes providing a multi-layered substrate, such that the multi-layered substrate includes a circuit pattern between stacked first and second substrates, and removing a part of the second substrate by irradiating a laser beam on the second substrate, the laser beam being irradiated at an oblique angle with respect to an upper surface of the second substrate.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Kyu Lim, Hyun-Chul Lee, Alexander Voronov, Jae-Seok Park, Cheol-Lae Roh
  • Publication number: 20140227809
    Abstract: A method of forming nanocrystals and a method of manufacturing an organic light-emitting display apparatus that includes a metal compound thin film having the nanocrystals. The method of forming nanocrystals includes forming a metal compound thin film under a first pressure by using a reactive sputtering process, and forming the nanocrystals in the metal compound thin film under a second pressure that is lower than the first pressure by using the reactive sputtering process.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 14, 2014
    Inventors: Myung-Soo Huh, Cheol-Lae Roh, Seung-Ho Choi
  • Patent number: 8654304
    Abstract: A method of manufacturing a flat panel display is disclosed. In one aspect, the method includes preparing first and second mother substrates, forming a plurality of display cells on at least one of the mother substrates, forming a plurality of sealant lines enclosing the respective cells on either one of the mother substrates and assembling and sealing the two mother substrates with the sealant lines interposed therebetween. The method also includes mounting the two mother substrates on a stage, irradiating a laser beam to a defined light irradiation region of the mother substrates and cutting the mother substrates while moving the light irradiation region along an imaginary cut line where the mother substrates are to be cut. The light irradiation region includes a linear region and a curved region.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: February 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Won-Kyu Lim, Jae-Seok Park, Cheol-Lae Roh, Yong-Jin Lee, Jang-Hwan Shin
  • Publication number: 20140011418
    Abstract: A sealing apparatus and a method of manufacturing a flat display device using the sealing apparatus. The sealing apparatus to attach a first substrate and a second substrate to each other using an attachment member disposed between the first and second substrates, the sealing apparatus comprises a stage on which the first substrate is seated, a halogen lamp irradiating light, and a reflector reflecting light irradiated from the halogen lamp to the attachment member.
    Type: Application
    Filed: June 25, 2013
    Publication date: January 9, 2014
    Inventors: Jin-Han Park, Hyung-Sik Kim, Joon-Hyung Kim, Seung-Ho Myoung, Jong-Dae Kim, Cheol Lae Roh
  • Publication number: 20130344768
    Abstract: A method of manufacturing a flat panel display is disclosed. In one aspect, the method includes preparing first and second mother substrates, forming a plurality of display cells on at least one of the mother substrates, forming a plurality of sealant lines enclosing the respective cells on either one of the mother substrates and assembling and sealing the two mother substrates with the sealant lines interposed therebetween. The method also includes mounting the two mother substrates on a stage, irradiating a laser beam to a defined light irradiation region of the mother substrates and cutting the mother substrates while moving the light irradiation region along an imaginary cut line where the mother substrates are to be cut. The light irradiation region includes a linear region and a curved region.
    Type: Application
    Filed: August 23, 2013
    Publication date: December 26, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Won-Kyu Lim, Jae-Seok Park, Cheol-Lae Roh, Yong-Jin Lee, Jang-Hwan Shin
  • Patent number: 8520182
    Abstract: A flat panel display is disclosed. In one embodiment, the display includes i) a first substrate including a display area, wherein at least one display element is formed in the display area, ii) a second substrate covering the display area and connected to the first substrate, iii) a sealant formed between the first and second substrates. In one embodiment, the first substrate and the second substrate comprise a first cut surface and a second cut surface, respectively. Further, each of the first cut surface and the second cut surface has a plurality of corners each of which is concave from the perspective of the display area.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Won-Kyu Lim, Jae-Seok Park, Cheol-Lae Roh, Yong-Jin Lee, Jang-Hwan Shin
  • Patent number: 8500506
    Abstract: A sealing apparatus and a method of manufacturing a flat display device using the sealing apparatus. The sealing apparatus to attach a first substrate and a second substrate to each other using an attachment member disposed between the first and second substrates, the sealing apparatus comprises a stage on which the first substrate is seated, a halogen lamp irradiating light, and a reflector reflecting light irradiated from the halogen lamp to the attachment member.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 6, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Han Park, Hyung-Sik Kim, Joon-Hyung Kim, Seung-Ho Myoung, Jong-Dae Kim, Cheol Lae Roh
  • Patent number: 8455792
    Abstract: A laser irradiation apparatus for bonding a first substrate and a second substrate of a display device by melting a plurality of bonding members disposed between the first and second substrates to define cells when the display device is manufactured, the display device including light emitting elements disposed on a surface of the first substrate such that the bonding members respectively encompass lateral regions of the light emitting elements, the laser irradiation apparatus including a stage on which the first substrate is mounted, a laser oscillation member configured to irradiate a laser beam that melts the bonding members disposed between the first substrate and the second substrate, and a scanner configured to irradiate the laser beam incident from the laser oscillation member onto the bonding members, the scanner being configured to sequentially irradiate the laser beam on portions of the bonding members.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: June 4, 2013
    Assignee: Samsung Display, Co., Ltd.
    Inventors: Hyung-Sik Kim, Alexander Voronov, Jin-Han Park, Hyun-Chul Lee, Tae-Wook Kang, Jong-Dae Kim, Gyoo-Wan Han, Cheol-Lae Roh
  • Patent number: 8450916
    Abstract: A display device including a first substrate; a display unit on the first substrate, the display unit displaying an image; and a second substrate facing the first substrate with the display unit interposed therebetween, wherein the first substrate and the second substrate are optical contact bonded to each other.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: May 28, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Hyung Kim, Jin-Han Park, Cheol-Lae Roh
  • Patent number: 8444906
    Abstract: A substrate cutting method includes the steps of aligning a panel including two or more substrates, along a cutting line, forming groove lines in the respective substrates of the panel along the cutting line, by oscillating respective ultraviolet UV laser beams along the cutting line, and cutting the panel along the groove lines, by applying force to the panel.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Jin-Han Park, Joon-Hyung Kim, Won-Kyu Lim, Jae-Seok Park, Cheol-Lae Roh, Yong-Jin Lee
  • Patent number: 8420156
    Abstract: A method of forming a pattern and a method of manufacturing an organic light emitting device, the method of forming a pattern including providing an electromagnetic substrate for generating an electromagnetic field at a selectively controllable position by selectively controlling where current flows through the electromagnetic substrate; providing a patterning substrate for forming a pattern; aligning the electromagnetic substrate to a first surface of the patterning substrate; selectively applying current to the electromagnetic substrate to form the electromagnetic field at the predetermined position; providing masking powder in a vicinity of a second surface of the patterning substrate such that the masking powder reacts to the electromagnetic field; supplying a pattern forming material to the second surface of the patterning substrate; and cutting off the current to the electromagnetic substrate.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Jae-Seok Park, Cheol-Lae Roh, Won-Kyu Lim
  • Patent number: 8409788
    Abstract: A laser induced thermal imaging (LITI) method, a method of patterning an organic layer using the same and a method of manufacturing an organic light emitting diode (OLED) display device using the same. The LITI method includes preparing a substrate including a transfer layer, preparing a donor substrate including a base film and a light-to-heat conversion layer disposed on the base film, aligning the substrate with the donor substrate, and irradiating laser to the base layer of the donor substrate. Here, the laser is irradiated to the base layer in a region excluding a region corresponding to a pattern to be formed on the substrate. Thus, according to the method, regardless of the size of the pattern to be formed and the size of the laser beam, stitching mura can be prevented.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Chul Lee, Jin-Han Park, Hyung-Sik Kim, Won-Kyu Lim, Cheol-Lae Roh
  • Patent number: 8388399
    Abstract: A method of manufacturing an organic light-emitting display apparatus according to a laser-induced thermal imaging (LITI) method, the method including patterning a transfer layer arranged on a donor film; disposing the donor film on an acceptor substrate; laminating the donor film on the acceptor substrate; transferring the transfer layer of the donor film to the acceptor substrate; and removing the donor film from the acceptor substrate.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Sul Kim, Jae-Seok Park, Cheol-Lae Roh
  • Publication number: 20120270461
    Abstract: A method of manufacturing an organic light-emitting display apparatus according to a laser-induced thermal imaging (LITI) method, the method including patterning a transfer layer arranged on a donor film; disposing the donor film on an acceptor substrate; laminating the donor film on the acceptor substrate; transferring the transfer layer of the donor film to the acceptor substrate; and removing the donor film from the acceptor substrate.
    Type: Application
    Filed: August 18, 2011
    Publication date: October 25, 2012
    Inventors: Dong-Sul Kim, Jae-Seok Park, Cheol-Lae Roh