Patents by Inventor Seong Pil Cho

Seong Pil Cho 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: 20150118344
    Abstract: A fabricating apparatus and a method of a flat plate display are disclosed. A fabricating apparatus of a flat plate display includes a stage on which a substrate having liquid resin formed thereon is seated, a imprinting mold bonded with the liquid resin of the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves, and a planarization layer formed between the stage and the substrate to planarize a surface of the stage.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 30, 2015
    Inventors: Ju-Hyuk KIM, Tae-Joon Song, Seong-Pil Cho
  • Patent number: 8961851
    Abstract: A fabricating apparatus and a method of a flat plate display are disclosed. A fabricating apparatus of a flat plate display includes a stage on which a substrate having liquid resin formed thereon is seated, a imprinting mold bonded with the liquid resin of the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves, and a planarization layer formed between the stage and the substrate to planarize a surface of the stage.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Ju-Hyuk Kim, Tae-Joon Song, Seong-Pil Cho
  • Patent number: 8936898
    Abstract: A photosensitive resin composition and a method for forming an organic film on a substrate are provided. Because the photosensitive resin composition for imprinting includes an erythrotol-based monomer or oligomer, an organic film formed by the photosensitive resin composition for imprinting has improved restoring force. Therefore, the photosensitive resin composition is appropriate for imprinting processes.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: January 20, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Yeon Heui Nam, Jin Wuk Kim, Tae Joon Song, Seong Pil Cho, Byung Uk Kim, Seung Hyup Shin, Jun Yong Song, Myoung Soo Lee
  • Patent number: 8858859
    Abstract: Disclosed are an apparatus and method for fabricating a flat panel display device to realize easy separation of a substrate from an imprinting mold. The apparatus includes an imprinting mold connected to a substrate to form a thin film pattern on the substrate, a first adsorption pad to vacuum-adsorb the center of the imprinting mold, a second adsorption pad to vacuum-adsorb the periphery of the imprinting mold, and a connector connected to vacuum pins to vertically move in different regions of the first and second adsorption pads.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: October 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Joon Song, Dhang Kwon, Hang-Sup Cho, Seong-Pil Cho, Ho Su Kim, Doo-Hee Jang
  • Publication number: 20140199426
    Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Doo Hee JANG, Tae Joon SONG, Dhang KWON, Hang Sup CHO, Seong Pil CHO, Ho Su KIM, Jin Hee JANG
  • Patent number: 8728377
    Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 20, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Doo Hee Jang, Tae Joon Song, Dhang Kwon, Hang Sup Cho, Seong Pil Cho, Ho Su Kim, Jin Hee Jang
  • Patent number: 8488084
    Abstract: A flat panel display device includes a thin film pattern formed by an imprinting mold pressing imprinting resin on a substrate, an outer thin film pattern formed on an outer region of the substrate, adjacent to the thin film pattern, wherein the outer thin film pattern is used as a demolding seed for demolding the substrate from the imprinting mold, and the outer thin film pattern configured to limit movement of the imprinting resin.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 16, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Ho-Su Kim, Tae-Joon Song, Dhang Kwon, Hang-Sup Cho, Seong-Pil Cho, Doo-Hee Jang
  • Patent number: 8414725
    Abstract: Disclosed is a method of fabricating and apparatus of a flat plate display that is able to separate a substrate and an imprinting mold from each other with a relatively small force. The fabricating apparatus of a flat plate display includes an imprinting mold which is boned with a substrate to form a thin film pattern on the substrate, the imprinting mold comprising projections and grooves; and a movable separation part configured to rotatably move from a one side toward the other side of the imprinting mold to vacuum-absorb the imprinting mold.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: April 9, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Seong-Pil Cho
  • Patent number: 8236224
    Abstract: A fabricating apparatus and a method of a flat plate display are disclosed. A fabricating apparatus of a flat plate display includes a stage on which a substrate is seated, an imprinting mold bonded with the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves, a supporter configured to support the imprinting mold, and a horizontal compensating part configured to compensate downward-bending of the imprinting mold by pressing the imprinting mold.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: August 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Joon Song, Jin-Wuk Kim, Seong-Pil Cho
  • Patent number: 8236225
    Abstract: Disclosed are a device and method for fabricating a flat display device which can minimize an error of alignment of an imprinting mold and a substrate. The device for fabricating a flat display device includes a stage for seating a substrate; an imprinting mold bonded with the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves; and a mold holder for holding sides of the imprinting mold when the substrate and the imprinting mold are bonded with each other.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Tae-Joon Song, Seong-Pil Cho
  • Patent number: 8105501
    Abstract: A liquid-crystal display includes a first substrate and a second substrate disposed opposite the first substrate, and a plurality of pixel areas formed on the first substrate, where each pixel area has red, green, blue, and white sub-pixel areas. Red, green and blue color filter layers are disposed on the red, green and blue sub-pixel areas, respectively, and an overcoat layer is disposed over the red, green and blue color filter layers, where a portion of the overcoat layer forms a white color filter layer in the white sub-pixel area. The overcoat layer is formed from a UV-curable liquid pre-polymer material, which includes monomers each having a mono-functional group, and at least a di-functional group or a tri-functional group.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 31, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Wuk Kim, Tae Joon Song, Yeon Heui Nam, Seong Pil Cho
  • Publication number: 20110298159
    Abstract: Disclosed is an imprinting apparatus and imprinting method using the same that prevent a process of forming a pattern on a substrate from being affected by flatness of a stage. The imprinting apparatus comprises a chamber unit in which a process of forming a pattern on a substrate is carried out; a stage for supporting the substrate on which a resin layer is formed; an installing member positioned above the stage and having a mold member attached to transform the resin layer so as to form the pattern on the substrate; and a first spraying unit for spraying fluid to separate the substrate supported by the stage from the stage, wherein the installing member moves the mold member in the direction getting near to the substrate separated from the stage so that the mold member and the resin layer are brought into contact with each other.
    Type: Application
    Filed: May 13, 2011
    Publication date: December 8, 2011
    Inventors: Doo Hee JANG, Tae Joon Song, Dhang Kwon, Hang Sup Cho, Seong Pil Cho, Ho Su Kim, Jin Hee Jang
  • Publication number: 20110274840
    Abstract: An apparatus and a method of fabricating a thin film pattern, capable of forming a demolding seed between an imprinting mold and a substrate in a demolding process of demolding an imprinting mold from a substrate, are disclosed. The method of fabricating a thin film pattern includes coating imprinting resin on the other region except an edge region of a substrate, forming a thin film pattern on the substrate by contacting an imprinting mold with the imprinting resin, and demolding the imprinting mold from the substrate.
    Type: Application
    Filed: May 2, 2011
    Publication date: November 10, 2011
    Inventors: Dhang Kwon, Tae-Joon Song, Hang-Sup Cho, Seong-Pil Cho, Ho-Su Kim, Doo-Hee Jang
  • Publication number: 20110273647
    Abstract: A flat panel display device includes a thin film pattern formed by an imprinting mold pressing imprinting resin on a substrate, an outer thin film pattern formed on an outer region of the substrate, adjacent to the thin film pattern, wherein the outer thin film pattern is used as a demolding seed for demolding the substrate from the imprinting mold, and the outer thin film pattern configured to limit movement of the imprinting resin.
    Type: Application
    Filed: May 2, 2011
    Publication date: November 10, 2011
    Inventors: Ho-Su Kim, Tae-Joon Song, Dhang Kwon, Hang-Sup Cho, Seong-Pil Cho, Doo-Hee Jang
  • Publication number: 20110266709
    Abstract: Disclosed are an apparatus and method for fabricating a flat panel display device to realize easy separation of a substrate from an imprinting mold. The apparatus includes an imprinting mold connected to a substrate to form a thin film pattern on the substrate, a first adsorption pad to vacuum-adsorb the center of the imprinting mold, a second adsorption pad to vacuum-adsorb the periphery of the imprinting mold, and a connector connected to vacuum pins to vertically move in different regions of the first and second adsorption pads.
    Type: Application
    Filed: April 15, 2011
    Publication date: November 3, 2011
    Inventors: Tae-Joon SONG, Dhang KWON, Hang-Sup CHO, Seong-Pil CHO, Ho Su KIM, Doo-Hee JANG
  • Patent number: 8012652
    Abstract: A method of forming a thin film pattern includes: providing a printing roller and a substrate including a thin film; coating the printing roller with an etch-resist solution including a base polymer, a carrier solvent, a tackifier and a surfactant; removing the carrier solvent from the coated etch-resist solution thereby transitioning the etch-resist solution from liquid phase to solid phase; patterning the solid etch-resist; transferring the patterned etch-resist from the printing roller to the substrate; and patterning the thin film corresponding to the transferred etch-resist.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: September 6, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Wuk Kim, Seong Pil Cho
  • Publication number: 20110147989
    Abstract: Disclosed are a device and method for fabricating a flat display device which can minimize an error of alignment of an imprinting mold and a substrate. The device for fabricating a flat display device includes a stage for seating a substrate; an imprinting mold bonded with the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves; and a mold holder for holding sides of the imprinting mold when the substrate and the imprinting mold are bonded with each other.
    Type: Application
    Filed: October 26, 2010
    Publication date: June 23, 2011
    Inventors: Tae-Joon SONG, Seong-Pil Cho
  • Publication number: 20110147990
    Abstract: A fabricating apparatus and a method of a flat plate display are disclosed. A fabricating apparatus of a flat plate display includes a stage on which a substrate having liquid resin formed thereon is seated, a imprinting mold bonded with the liquid resin of the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves, and a planarization layer formed between the stage and the substrate to planarize a surface of the stage.
    Type: Application
    Filed: October 27, 2010
    Publication date: June 23, 2011
    Inventors: Ju-Hyuk KIM, Tae-Joon Song, Seong-Pil Cho
  • Publication number: 20110146894
    Abstract: Disclosed is a method of fabricating and apparatus of a flat plate display that is able to separate a substrate and an imprinting mold from each other with a relatively small force. The fabricating apparatus of a flat plate display includes an imprinting mold which is boned with a substrate to form a thin film pattern on the substrate, the imprinting mold comprising projections and grooves; and a movable separation part configured to rotatably move from a one side toward the other side of the imprinting mold to vacuum-absorb the imprinting mold.
    Type: Application
    Filed: October 25, 2010
    Publication date: June 23, 2011
    Inventor: Seong-Pil CHO
  • Publication number: 20110147988
    Abstract: A fabricating apparatus and a method of a flat plate display are disclosed. A fabricating apparatus of a flat plate display includes a stage on which a substrate is seated, an imprinting mold bonded with the substrate to form a thin film pattern on the substrate, the imprinting mold comprises projections and grooves, a supporter configured to support the imprinting mold, and a horizontal compensating part configured to compensate downward-bending of the imprinting mold by pressing the imprinting mold.
    Type: Application
    Filed: October 25, 2010
    Publication date: June 23, 2011
    Inventors: Tae-Joon Song, Jin-Wuk Kim, Seong-Pil Cho