Patents by Inventor Il Woo Park

Il Woo Park 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: 20160197229
    Abstract: A method for manufacturing a semiconductor light emitting device package includes forming a light emitting structure including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer sequentially stacked on a growth substrate, forming a reflective layer on a first surface of the light emitting structure corresponding to a surface of the second conductivity-type semiconductor layer, forming bumps on the first surface, the bumps being electrically connected to the first or second conductivity-type semiconductor layer and protruding from the reflective layer, bonding a support substrate to the bumps on the first surface, removing the growth substrate, bonding a light transmissive substrate coated with a wavelength conversion layer to a second surface of the light emitting structure from which the growth substrate is removed, and removing the support substrate.
    Type: Application
    Filed: December 17, 2015
    Publication date: July 7, 2016
    Inventors: Il Woo PARK, Jung Hoon KIM
  • Publication number: 20160099387
    Abstract: A semiconductor light emitting device includes a package body having first and second surfaces being opposed to each other, first and second external terminal blocks disposed in opposite end portions of the package body, respectively, and having portions exposed to surfaces of the package body, respectively. A wavelength converting material layer is disposed between the first and second external terminal blocks and has a first surface substantially coplanar with the first surface of the package body, and a second surface opposing the first surface of the wavelength converting material layer. A LED chip is disposed package body on at least a portion of the second surface of the wavelength converting material layer between the first and second external terminal blocks within the package body.
    Type: Application
    Filed: May 21, 2015
    Publication date: April 7, 2016
    Inventors: Tsuyoshi TSUTSUI, Jong Cheol KIM, Il Woo PARK, Jin Hyun LEE
  • Patent number: 9214606
    Abstract: A method of manufacturing a light-emitting diode package is illustrated. A light-emitting diode chip is manufactured. A material layer is formed on side surfaces and a rear surface of the light-emitting diode chip. The material layer is then oxidized to convert the material layer into an oxidized layer to form a reflective layer on the side surfaces and the rear surface of the light-emitting diode chip. The light-emitting diode chip is packaged.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: December 15, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Il-woo Park, Jong-rak Sohn
  • Patent number: 9190335
    Abstract: An optical property evaluation apparatus includes: a light conversion filter converting light emitted from an LED chip or a bare LED package, which is to be evaluated, into a different wavelength of light, and emitting a specific color of light; and an optical property measurement unit receiving the specific color of light emitted from the light conversion filter and measuring the optical properties of the received light.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Rak Sohn, Il Woo Park
  • Patent number: 9142737
    Abstract: A light emitting device package includes: first and second electrodes, at least a portion of a lower surface thereof being exposed; a light emitting device disposed on an upper surface of at least one of the first and second electrodes; a reflection wall disposed on the upper surface of the first and second electrodes and surrounding the light emitting device to form a mounting part therein; and a fluorescent film disposed on the reflection wall to cover an upper portion of the mounting part. The mounting part is filled with air.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: September 22, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Na-Na Park, Il Woo Park, Chang Hoon Kwak
  • Patent number: 9134634
    Abstract: A control device for preventing meandering of patterns for use in a patterned film manufacturing device which includes a film transferring equipment and a pattern forming equipment, includes a marking unit that forms markings on a predetermined reference position on the film, a recognizing unit that is located at the rear of the marking unit and recognizes positions of the markings on the film, a computing unit that computes an amount of meandering based on differences between the reference position and the recognized positions of the markings, a control unit that generates a correction signal for correcting positions of the marking unit and the pattern forming equipment corresponding to the computed the amount of meandering, and a correction unit that receives the correction signal and corrects positions of the marking unit and the pattern forming equipment based on the received correction signal.
    Type: Grant
    Filed: April 21, 2012
    Date of Patent: September 15, 2015
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Young Geun Yoon, Il Woo Park, Yong Hwan Kim, Bong Jin Choi
  • Patent number: 9087968
    Abstract: There is provided a white light emitting device including: a blue LED emitting blue light; a red phosphor excited by the blue light, emitting red light, and including a nitrogen (N)-containing compound; a yellow phosphor excited by the blue light and emitting yellow light; a first green phosphor excited by the blue light, emitting first green light having a first full width half maximum, and including a nitrogen (N)-containing compound; and a second green phosphor excited by the blue light and emitting second green light having a second full width half maximum larger than the first full width half maximum of the first green phosphor.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo Jin Lee, Jeong Hee Kim, Il Woo Park, Chang Hoon Kwak, Kyung Seo
  • Publication number: 20150195323
    Abstract: A content reproducing method is provided for continuously reproducing content being reproduced by a client device in another client device in a multimedia data providing system including a server for providing content and a plurality of client devices for reproducing the content provided by the server. The method includes reproducing, by a first device, multimedia content being streamed by a content server; and transmitting, by the first device, a first request message for continuously reproducing content being reproduced by the first device in another device and an IDentification (ID) of the first device to another device using local area communication in order to continuously reproduce the content being reproduced by the first device in another device.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventor: Il-Woo PARK
  • Publication number: 20150171290
    Abstract: There is provided a light emitting device package using a quantum dot, an illumination apparatus and a display apparatus. The light emitting device package includes a light emitting device; a sealing part disposed in a path of light emitted from the light emitting device and having a lens shape; and a wavelength conversion part sealed within the sealing part and including a quantum dot. The light emitting device package uses the quantum dot as the wavelength conversion part to thereby achieve superior color reproducibility and light emission efficiency, and facilitates the control of color coordinates by adjusting the particle size and concentration of the quantum dot.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 18, 2015
    Inventors: Hyo Jin LEE, Il Woo PARK, Chang Hoon KWAK
  • Patent number: 9035345
    Abstract: A light emitting device package includes a base including at least one recess, at least one light emitting device disposed within the recess, and a reflective wall filling a space between the light emitting device and the recess so as to surround lateral surfaces of the light emitting device. The recess is formed to have a depth ranging from 80% to 120% of a height of the light emitting device.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Hoon Kim, Il Woo Park
  • Patent number: 9002987
    Abstract: A content reproducing method is provided for continuously reproducing content being reproduced by a client device in another client device in a multimedia data providing system including a server for providing content and a plurality of client devices for reproducing the content provided by the server. The method includes reproducing, by a first device, multimedia content being streamed by a content server; and transmitting, by the first device, a first request message for continuously reproducing content being reproduced by the first device in another device and an IDentification (ID) of the first device to another device using local area communication in order to continuously reproduce the content being reproduced by the first device in another device.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Il-Woo Park
  • Publication number: 20150069454
    Abstract: A light emitting device package includes: first and second electrodes, at least a portion of a lower surface thereof being exposed; a light emitting device disposed on an upper surface of at least one of the first and second electrodes; a reflection wall disposed on the upper surface of the first and second electrodes and surrounding the light emitting device to form a mounting part therein; and a fluorescent film disposed on the reflection wall to cover an upper portion of the mounting part. The mounting part is filled with air.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Na-Na PARK, Il Woo PARK, Chang Hoon KWAK
  • Patent number: 8890188
    Abstract: A light emitting device package includes: first and second electrodes, at least a portion of a lower surface thereof being exposed; a light emitting device disposed on an upper surface of at least one of the first and second electrodes; a reflection wall disposed on the upper surface of the first and second electrodes and surrounding the light emitting device to form a mounting part therein; and a fluorescent film disposed on the reflection wall to cover an upper portion of the mounting part. The mounting part is filled with air.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Na Na Park, Il Woo Park, Chang Hoon Kwak
  • Publication number: 20140291705
    Abstract: There are provided a phosphor film, a method of manufacturing the same, and a method of coating an LED chip with a phosphor layer. The phosphor film includes: a base film; a phosphor layer formed on the base film and obtained by mixing phosphor particles in a partially cured resin material; and a cover film formed on the phosphor layer to protect the phosphor layer.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: CHANG HOON KWAK, IL Woo Park, Kyu Jin Lee, Cheol Jun Yoo, Seong Jae Hong
  • Publication number: 20140256071
    Abstract: A method of manufacturing a light-emitting diode package is illustrated. A light-emitting diode chip is manufactured. A material layer is formed on side surfaces and a rear surface of the light-emitting diode chip. The material layer is then oxidized to convert the material layer into an oxidized layer to form a reflective layer on the side surfaces and the rear surface of the light-emitting diode chip. The light-emitting diode chip is packaged.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Il-woo PARK, Jong-rak SOHN
  • Patent number: 8753908
    Abstract: There are disclosed a method of manufacturing a semiconductor light emitting device and a paste application apparatus. The method includes preparing a light emitting structure including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; disposing a mask including an opening exposing a part of the light emitting structure on the light emitting structure; applying a paste including a wavelength conversion material to the light emitting structure through the opening of the mask, by using a pressure means; and planarizing the applied paste by using a roller.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: June 17, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tsuyoshi Tsutsui, Shin Kun Kim, Seong Jae Hong, Il Woo Park
  • Publication number: 20140158982
    Abstract: A light emitting device may include: a light emitting unit; a wavelength conversion unit disposed in a path of light emitted from the light emitting unit and converting a wavelength of light emitted from the light emitting unit; and a light transmission unit formed on at least one side of the wavelength conversion unit. The wavelength conversion unit may include a first quantum dot converting a wavelength of light into red light and a second quantum dot converting a wavelength of light into green light, and the patterns of first quantum dot and second quantum dot are alternately disposed repeatedly at least one or more times.
    Type: Application
    Filed: August 2, 2012
    Publication date: June 12, 2014
    Applicant: Samsung Electronics Co.,Ltd
    Inventors: Il Woo Park, Hyo Jin Lee, Jeong Hee Kim, Na Ree Woo, Chang Bun Yoon, Chul Soo Yoon
  • Publication number: 20140080230
    Abstract: An optical property evaluation apparatus includes: a light conversion filter converting light emitted from an LED chip or a bare LED package, which is to be evaluated, into a different wavelength of light, and emitting a specific color of light; and an optical property measurement unit receiving the specific color of light emitted from the light conversion filter and measuring the optical properties of the received light.
    Type: Application
    Filed: October 18, 2013
    Publication date: March 20, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Rak SOHN, Il Woo PARK
  • Publication number: 20140070238
    Abstract: A light emitting device package includes a base including at least one recess, at least one light emitting device disposed within the recess, and a reflective wall filling a space between the light emitting device and the recess so as to surround lateral surfaces of the light emitting device. The recess is formed to have a depth ranging from 80% to 120% of a height of the light emitting device.
    Type: Application
    Filed: July 31, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Hoon KIM, Il Woo PARK
  • Patent number: 8541800
    Abstract: There is provided a light emitting device package including: a package body providing a chip mounting area and including first and second lead terminals; an LED chip mounted on the chip mounting area and electrically connected to the first and second lead terminals; a groove portion disposed around the LED chip in the chip mounting area; and a wavelength conversion portion formed of a resin containing a wavelength conversion material with which to enclose the LED chip and having an outer shape defined by the groove portion.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 24, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Ah Joo, Hyo Jin Lee, Il Woo Park, Kyung Tae Kim