Patents by Inventor Yeon-Hwa Lee

Yeon-Hwa 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).

  • Patent number: 9005997
    Abstract: Provided are a magneto resistive element and a method of manufacturing the same, and in particular, a magneto resistive element and a method of manufacturing the same that may be applied to a digitizer sensing panel. The magneto resistive element includes a substrate, a first electrode disposed on the substrate, a first hole transport layer disposed on the first electrode, a first magneto resistive layer disposed on the first hole transport layer, wherein the first magneto resistive layer comprises an organic material, a first transport layer disposed on the first magneto resistive layer, a second magneto resistive layer disposed on the first transport layer, wherein the second magneto resistive layer comprises an organic material, a first electron transport layer disposed on the second magneto resistive layer, and a second electrode disposed on the first electron transport layer.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Sung Bang, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee
  • Patent number: 8946758
    Abstract: An organic light emitting display device includes a substrate having a luminescent region and a non-luminescent region, an insulation layer on the substrate, a first electrode on the insulation layer, at least one light emitting structure on the first electrode, a second electrode on the light emitting structure, and at least one reflecting structure at one of the first electrode or the second electrode around the at least one light emitting structure. The reflecting structure may be configured to reflect light back toward the luminescent region.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Gu Lee, Won-Jong Kim, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20150014658
    Abstract: Disclosed are an organic light emitting diode display and a method for manufacturing the same. The organic light emitting diode display includes: a driving switching element; a pixel electrode connected with the driving switching element; an auxiliary electrode separated from the pixel electrode and positioned in a same layer as the pixel electrode; an organic common layer positioned on the pixel electrode and the auxiliary electrode and including a contact hole positioned on the auxiliary electrode; and a common electrode positioned on the organic common layer and connected with the auxiliary electrode through the contact hole; and the auxiliary electrode includes a light absorbing layer.
    Type: Application
    Filed: May 20, 2014
    Publication date: January 15, 2015
    Inventors: Ji Young CHOUNG, Hyun Sung BANG, Joon Gu LEE, Jin Baek CHOI, Yeon Hwa LEE
  • Publication number: 20150014643
    Abstract: A donor substrate includes: a support layer; a first light absorption layer disposed on the support layer; a buffer layer disposed on the first absorption layer; a second light absorption layer disposed on the buffer layer; and a transfer layer disposed on the second absorption layer, wherein the buffer layer includes a transparent oxide film.
    Type: Application
    Filed: December 19, 2013
    Publication date: January 15, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yeon-Hwa Lee, Kwan-Hyun Cho, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Hyun-Sung Bang, Young-Woo Song
  • Patent number: 8928217
    Abstract: Disclosed is an organic light emitting display device improving light efficiency by forming a metal layer having a nanometer thickness on a protective layer formed in order to protect the organic light emitting diode.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Young Choung, Hyun-Sung Bang, Yeon-Hwa Lee, Joon-Gu Lee, Jin-Baek Choi, Won-Jong Kim, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 8928636
    Abstract: A magnetic touch pen is disclosed. In one aspect, the magnetic touch pen comprises a first case in which a plurality of magnets is arranged in a cylindrical first body in a longitudinal direction of the first body. It also comprises a second case including a second body in which the first body of the first case is accommodated and having screw threads formed on an inner circumference of the second body. It further comprises a magnetic power controller configured between two magnet groups to separate the two magnet groups and moving along the screw threads of the second case to control a plurality of magnets of the two magnet groups.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: January 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung-Sung Bang, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20150001495
    Abstract: A donor substrate for transfer and a manufacturing method of an organic light emitting diode (OLED) display, the donor substrate including a transparent support layer; a light-to-heat conversion layer on one side of the support layer, the light to heat conversion layer being in the form of a first pattern; a transfer layer covering the light-to-heat conversion layer; and a reflection layer on another side of the support layer, the other side being opposite to the one side of the support layer, the reflection layer being in the form of a second pattern.
    Type: Application
    Filed: May 13, 2014
    Publication date: January 1, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Young CHOUNG, Hyun-Sung BANG, Yeon-Hwa LEE, Joon-Gu LEE, Jin-Baek CHOI, Young-Woo SONG, Jong-Hyuk LEE
  • Patent number: 8921129
    Abstract: A donor substrate includes a base substrate; a light reflection layer on the base substrate and partially overlapping the base substrate; a light-to-heat conversion layer on the base substrate, and including a combination layer including an insulating material and a first metal material; and a transfer layer on the light-to-heat conversion layer. A ratio of the first metal material in the combination layer to the insulating material in the combination layer increases as a distance from the base substrate increases along a thickness direction of the light-to-heat conversion layer.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Gu Lee, Won Jong Kim, Ji Young Choung, Jin Baek Choi, Yeon Hwa Lee, Hyunsung Bang, Young-Woo Song
  • Publication number: 20140361261
    Abstract: An organic light-emitting display apparatus includes a substrate, a thin film transistor (TFT) disposed on the substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode The organic light-emitting display apparatus further includes a pixel electrode including a first pixel electrode layer, a second pixel electrode layer disposed on the first pixel electrode layer and a third pixel electrode layer disposed on the second pixel electrode layer. The second pixel electrode layer is a metal layer and the third pixel electrode layer is a reflective layer. The organic light-emitting display apparatus further includes an emission layer (EML) disposed on the pixel electrode, and an opposite layer disposed on the EML.
    Type: Application
    Filed: October 29, 2013
    Publication date: December 11, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: JIN-BAEK CHOI, JI-YOUNG CHOUNG, YEON-HWA LEE, WON-JONG KIM, HYUN-SUNG BANG, JOON-GU LEE
  • Publication number: 20140357000
    Abstract: A donor substrate includes a base substrate; a light reflection layer on the base substrate and partially overlapping the base substrate; a light-to-heat conversion layer on the base substrate, and including a combination layer including an insulating material and a first metal material; and a transfer layer on the light-to-heat conversion layer. A ratio of the first metal material in the combination layer to the insulating material in the combination layer increases as a distance from the base substrate increases along a thickness direction of the light-to-heat conversion layer.
    Type: Application
    Filed: October 24, 2013
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Gu LEE, Won Jong KIM, Ji Young CHOUNG, Jin Baek CHOI, Yeon Hwa LEE, Hyunsung BANG, Young-Woo SONG
  • Publication number: 20140332766
    Abstract: Provided are a magneto resistive element and a method of manufacturing the same, and in particular, a magneto resistive element and a method of manufacturing the same that may be applied to a digitizer sensing panel. The magneto resistive element includes a substrate, a first electrode disposed on the substrate, a first hole transport layer disposed on the first electrode, a first magneto resistive layer disposed on the first hole transport layer, wherein the first magneto resistive layer comprises an organic material, a first transport layer disposed on the first magneto resistive layer, a second magneto resistive layer disposed on the first transport layer, wherein the second magneto resistive layer comprises an organic material, a first electron transport layer to disposed on the second magneto resistive layer, and a second electrode disposed on the first electron transport layer.
    Type: Application
    Filed: September 10, 2013
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyun-Sung BANG, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee
  • Publication number: 20140315134
    Abstract: In a method and apparatus for manufacturing a donor substrate, a pattern layer which exposes a surface of a substrate is arranged on the substrate, and an organic material is deposited on the exposed surface of the substrate. The pattern layer includes a film pattern that defines a plurality of first openings and a photoresist pattern that is positioned on the film pattern and defines second openings, which correspond to the first openings, respectively, a minimum width of the second openings being smaller than that of the first openings.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 23, 2014
    Inventors: Hyun Sung BANG, Won Jong KIM, Ji Young CHOUNG, Joon Gu LEE, Jin Baek CHOI, Yeon Hwa LEE
  • Publication number: 20140295587
    Abstract: A donor substrate includes a base substrate; a light reflection layer disposed on the base substrate and overlapped with a portion of the base substrate, a heat blocking pattern disposed on the light reflection layer, overlapped with the light reflection layer, and including a plurality of air holes; a light-to-heat conversion layer disposed on the base substrate; and a transfer layer disposed on the light-to-heat conversion layer.
    Type: Application
    Filed: December 6, 2013
    Publication date: October 2, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Gu LEE, Ji Young CHOUNG, Jin Baek CHOI, Hyunsung BANG, Yeon Hwa LEE, Won Jong KIM, Young-Woo SONG
  • Patent number: 8829788
    Abstract: Provided is an organic light emitting display device including: a substrate; first electrodes on the substrate; an emission layer on the first electrodes; a second electrode on the emission layer; a pixel defining layer separating the first electrodes corresponding to pixels and defining pixel areas; and a gas collecting layer on the pixel defining layer.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Baek Choi, Ji-Young Choung, Joon-Gu Lee, Yeon-Hwa Lee, Won-Jong Kim, Hyun-Sung Bang, Young-Woo Sung
  • Patent number: 8815613
    Abstract: A method of manufacturing a touch sensing panel includes providing a substrate, forming a plurality of first electrodes arranged on the substrate, the first electrodes being separated from each other, forming a photoresist layer on the plurality of first electrodes, forming a plurality of photoresist removing regions positioned to intersect the first electrodes and to be separated from each other on the photoresist layer, and forming a tunneling magnetoresistance (TMR) element layer and a second electrode layer comprising a plurality of second electrodes on the photoresist layer. The method provides a touch sensing panel capable of being driven at high speed and reduces manufacturing cost and time.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Sung Bang, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 8785954
    Abstract: An organic light-emitting device includes a substrate, an anode including Ag on the substrate, a transparent inorganic thin-film layer on the anode, the transparent inorganic thin-film layer being in contact with the anode and having non-conductive characteristics; and an emitting layer and a cathode disposed sequentially on the inorganic thin-film layer.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: July 22, 2014
    Assignee: Samsusng Display Co., Ltd.
    Inventors: Joon-Gu Lee, Won-Jong Kim, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20140145585
    Abstract: Provided is an organic light emitting display device including: a substrate; first electrodes on the substrate; an emission layer on the first electrodes; a second electrode on the emission layer; a pixel defining layer separating the first electrodes corresponding to pixels and defining pixel areas; and a gas collecting layer on the pixel defining layer.
    Type: Application
    Filed: March 26, 2013
    Publication date: May 29, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Baek Choi, Ji-Young Choung, Joon-Gu Lee, Yeon-Hwa Lee, Won-Jong Kim, Hyun-Sung Bang, Young-Woo Sung
  • Publication number: 20140125219
    Abstract: In an aspect, an organic light emitting device, including: a substrate; a first electrode on the substrate; an emission layer on the first electrode: a second electrode on the emission layer; and a conductive capping layer on the second electrode is provided.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 8, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Baek Choi, Ji-Young Choung, Joon-Gu Lee, Yeon-Hwa Lee, Won-Jong Kim, Hyun-Sung Bang
  • Publication number: 20140125637
    Abstract: A magnetic touch pen is disclosed. In one aspect, the magnetic touch pen comprises a first case in which a plurality of magnets is arranged in a cylindrical first body in a longitudinal direction of the first body. It also comprises a second case including a second body in which the first body of the first case is accommodated and having screw threads formed on an inner circumference of the second body. It further comprises a magnetic power controller configured between two magnet groups to separate the two magnet groups and moving along the screw threads of the second case to control a plurality of magnets of the two magnet groups.
    Type: Application
    Filed: February 4, 2013
    Publication date: May 8, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyung-Sung Bang, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20140120634
    Abstract: A method of manufacturing a touch sensing panel includes providing a substrate, forming a plurality of first electrodes arranged on the substrate, the first electrodes being separated from each other, forming a photoresist layer on the plurality of first electrodes, forming a plurality of photoresist removing regions positioned to intersect the first electrodes and to be separated from each other on the photoresist layer, and forming a tunneling magnetoresistance (TMR) element layer and a second electrode layer comprising a plurality of second electrodes on the photoresist layer. The method provides a touch sensing panel capable of being driven at high speed and reduces manufacturing cost and time.
    Type: Application
    Filed: February 14, 2013
    Publication date: May 1, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Sung Bang, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee