Patents by Inventor Sang-Woo Pyo

Sang-Woo Pyo 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: 9089035
    Abstract: An organic light emitting display device includes a substrate; a thin film transistor disposed on the substrate; and an organic light emitting component disposed on the substrate and electrically connected to the thin film transistor. The organic light emitting component includes: a first electrode; a second electrode; and an intermediate layer disposed between the first electrode and the second electrode. The organic light emitting display device further includes: a temperature sensing unit disposed on the substrate, the temperature sensing unit being configured to operate differently based on an ambient temperature of the organic light emitting display device; a power driver configured to provide power to the temperature sensing unit; and a voltage control unit configured to: determine a driving voltage of the temperature sensing unit based on the power provided to the temperature sensing unit; and determine the ambient temperature based on the driving voltage.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: July 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyul Han, Sang-Woo Pyo, Ji-Hwan Yoon
  • Publication number: 20150194623
    Abstract: An organic light-emitting device and a method of manufacturing the same, including a substrate; a plurality of first electrodes on the substrate in a first to third light-emitting region; a first common layer on the substrate, the first common layer covering the plurality of first electrodes; a first light-emitting layer in the first light-emitting region and on the first common layer; a second light-emitting layer in the second light-emitting region and on the first common layer; a third light-emitting layer in the third light-emitting region and on the first common layer; a second common layer that is commonly disposed on the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer; a second electrode on the second common layer; and an auxiliary layer that is commonly disposed only in the first light-emitting region and the second light-emitting region between the first common layer and the second common layer.
    Type: Application
    Filed: April 15, 2014
    Publication date: July 9, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Woo PYO, Ha-Jin SONG, Byeong-Wook YOO, Ji-Hwan YOON, Kyul HAN
  • Patent number: 9048456
    Abstract: An organic light-emitting diode (OLED) having first, second and third sub-pixels of different colors includes: a substrate; first and second electrodes; an organic emission layer (OEL) between the electrodes including a first OEL in the first sub-pixel, a second OEL in the second sub-pixel, and a common third OEL in the first, second and third sub-pixels; a hole transport layer (HTL) between the first electrode and OEL; a hole injection layer (HIL) between the first electrode and HTL; an intermediate layer between the HTL and HIL; a first optical thickness auxiliary layer (OTAL) between the first OEL and third OEL in the first sub-pixel and including a first hole transporting compound and a cyano group-containing compound; and a second OTAL including a second hole transporting compound between the third OEL and HTL in the first sub-pixel, and between the second OEL and HTL in the second sub-pixel.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: June 2, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Wook Chang, Young-Hee Lee, Mu-Hyun Kim, Hyo-Yeon Kim, Sang-Woo Pyo, Seung-Mook Lee, Byeong-Wook Yoo
  • Publication number: 20150115230
    Abstract: An organic light-emitting display including a conductive-organic small molecular filling material and methods of manufacturing the same are disclosed. The organic light-emitting display includes a substrate, a display unit disposed on the substrate, a sealing substrate disposed above the display unit, a sealing member that attaches the substrate to the sealing substrate and disposed outside the display unit; and a filling material filling a space between the substrate and the sealing substrate inwards from the sealing member, wherein the filling material is a conductive-organic small molecule.
    Type: Application
    Filed: March 21, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji-Hwan Yoon, Chang-Ho Lee, Sang-Woo Pyo
  • Patent number: 9006713
    Abstract: In one aspect, an organic light-emitting display apparatus is provided including a first sub-pixel, a second sub-pixel, and a third sub-pixel that are each a different color, the apparatus including: a substrate; a first electrode disposed on the substrate; a second electrode disposed on the first electrode so as to face the first electrode; an organic emission layer disposed between the first electrode and the second electrode and comprising a first organic emission layer, a second organic emission layer, and a third organic emission layer; a hole transport layer disposed between the first electrode and the organic emission layer; and an electron accepting layer disposed between the first electrode and the second electrode. The organic light-emitting display apparatus has improved image quality and lifetime.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Woo Park, Myung-Jong Jung, Sung-Woo Cho, Sang-Woo Pyo, Hyo-Yeon Kim
  • Publication number: 20150054426
    Abstract: An organic light emitting display device includes a substrate; a thin film transistor disposed on the substrate; and an organic light emitting component disposed on the substrate and electrically connected to the thin film transistor. The organic light emitting component includes: a first electrode; a second electrode; and an intermediate layer disposed between the first electrode and the second electrode. The organic light emitting display device further includes: a temperature sensing unit disposed on the substrate, the temperature sensing unit being configured to operate differently based on an ambient temperature of the organic light emitting display device; a power driver configured to provide power to the temperature sensing unit; and a voltage control unit configured to: determine a driving voltage of the temperature sensing unit based on the power provided to the temperature sensing unit; and determine the ambient temperature based on the driving voltage.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kyul HAN, Sang-Woo PYO, Ji-Hwan YOON
  • Publication number: 20150021559
    Abstract: An organic light-emitting display apparatus includes a display substrate, a display panel on the display substrate and including a pixel region including an organic light-emitting device (OLED), and a non-pixel region, and an encapsulation substrate for encapsulating the display panel, wherein the encapsulation substrate defines at least one groove therein in which a color filer is located.
    Type: Application
    Filed: November 15, 2013
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kyul Han, Hyo-Yeon Kim, Hye-Yeon Shim, Sang-Woo Lee, Heun-Seung Lee, Sang-Woo Pyo, Ji-Hwan Yoon, Gyeong-Hui Hwang
  • Publication number: 20150014642
    Abstract: A donor substrate for a laser transfer includes a base layer, a primer layer disposed on the base layer, a light-to-heat conversion layer disposed on the primer layer, and an intermediate layer disposed on the light-to-heat conversion layer, where the light-to-heat conversion layer includes graphene.
    Type: Application
    Filed: December 18, 2013
    Publication date: January 15, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ji-Young KWON, Ji-Hwan YOON, Sang-Woo PYO, Ha-Jin SONG, Byeong-Wook YOO, Bum-Suk LEE, Ji-Myoung YE, Yi-Seul KIM
  • Patent number: 8921843
    Abstract: A full color light emitting device having a reduced driving voltage includes a substrate having a first subpixel, a second subpixel, and a third subpixel. A plurality of first electrodes are in the first subpixel, the second subpixel, and the third subpixel. A second electrode faces the first electrode. An emission layer is between the first electrode and the second electrode. The emission layer includes a first emission layer in the first subpixel for emitting a first color light in the first subpixel, a second emission layer in the first subpixel for emitting a second color light in the second subpixel, and a third emission layer in the first subpixel, the second subpixel and the third subpixel, for emitting a third color light in the third subpixel.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ha-Jin Song, Se-Hun Kim, Dae-Yup Shin, Sang-Woo Lee, Sang-Woo Pyo, Byeong-Wook Yoo, Ji-Young Kwon, Bum-Suk Lee, Ji-Myoung Ye, Ji-Hwan Yoon
  • Patent number: 8906735
    Abstract: A donor substrate includes a base layer, a light to heat conversion layer on the base layer, an interlayer on the light to heat conversion layer, a low molecular weight transfer layer on the interlayer and an organic transfer layer on the low molecular weight transfer layer. The low molecular weight transfer layer includes an element in Group I or a compound of elements in Group I and Group VII.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ha-Jin Song, Sang-Woo Pyo, Byeong-Wook Yoo, Hyo-Yeon Kim, Ji-Young Kwon, Kwan-Hee Lee
  • Publication number: 20140295085
    Abstract: A method for manufacturing a donor substrate according to an exemplary embodiment of the present invention includes: providing a base member; forming a coating layer on one surface of the base member; hardening the coating layer; and detaching the coating layer from the base member.
    Type: Application
    Filed: July 12, 2013
    Publication date: October 2, 2014
    Inventors: Ji-Myoung YE, Sang-Woo PYO, Ji-Hwan YOON, Ha-Jin SONG, Byeong-Wook YOO, Bum-Suk LEE, Ji-Young KWON
  • Publication number: 20140284566
    Abstract: An organic light-emitting device including a first light-emitting region, a second light-emitting region, and a third light-emitting region. The organic light-emitting device includes a substrate; a first electrode layer on the substrate; a hole injection layer on the first electrode layer; a common emission layer on the hole injection layer; a first resonance assistance layer on the common emission layer in the first light-emitting region and a second resonance assistance layer on the common emission layer in the second light-emitting region.
    Type: Application
    Filed: September 14, 2013
    Publication date: September 25, 2014
    Inventors: Byeong-Wook Yoo, Sang-Woo Pyo, Ha-Jin Song, Hyo-Yeon Kim, Hye-Yeon Shim, Ji-Young Kwon, Heun-Seung Lee, Ji-Hwan Yoon
  • Patent number: 8835914
    Abstract: An organic light emitting display device may include a first substrate, a first electrode disposed on the first substrate, a pixel defining layer disposed on the first electrode and the first substrate, an organic light emitting structure disposed on the first electrode, a second electrode disposed on the organic light emitting structure and the pixel defining layer, a second substrate disposed on the second electrode, etc. The pixel defining layer may include a fine uneven structure positioned in the display and the non-display regions. The organic light emitting structure may be substantially uniformly formed on the first electrode through the pixel defining layer having the fine uneven structure, so that an organic light emitting display device may exhibit increased lifetime and may show improved image quality.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Min-Soo Kim, Won-Sik Hyun, Heung-Yeol Na, Sang-Woo Pyo
  • Patent number: 8809842
    Abstract: In a donor film, an organic light emitting diode display manufacturing method using the same, and an organic light emitting diode display manufactured by using the method, the donor film includes a donor substrate and a transfer layer formed on the donor substrate. The donor substrate includes a base film, a light-to-heat conversion (LTHC) layer disposed on the base film, and a curved interlayer film provided on the light-to-heat conversion layer and having a wrinkled side. The transfer layer includes an organic emission layer which is formed so as to be curved along a shape of the wrinkled side of the curved interlayer film.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ha-Jin Song, Sang-Woo Pyo, Byeong-Wook Yoo, Hyo-Yeon Kim, Ji-Young Kwon, Hye-Yeon Shim, Kwan-Hee Lee
  • Publication number: 20140225074
    Abstract: A donor film includes a base film including a first area and a second area surrounding the first area, the second area having an organic material binding property that is different from an organic material binding property of the first area, a light-to-heat conversion pattern on the base film at the first area, a reflection layer on the base film at the second area, and a transfer layer on the light-to-heat conversion pattern and the reflection layer.
    Type: Application
    Filed: July 16, 2013
    Publication date: August 14, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyo Yeon Kim, Ha-Jin Song, Sang-Woo Lee, Hye-Yeon Shim, Heun-Seung Lee, Kyul Han, Sang-Woo Pyo
  • Publication number: 20140217367
    Abstract: A full color light emitting device having a reduced driving voltage includes a substrate having a first subpixel, a second subpixel, and a third subpixel. A plurality of first electrodes are in the first subpixel, the second subpixel, and the third subpixel. A second electrode faces the first electrode. An emission layer is between the first electrode and the second electrode. The emission layer includes a first emission layer in the first subpixel for emitting a first color light in the first subpixel, a second emission layer in the first subpixel for emitting a second color light in the second subpixel, and a third emission layer in the first subpixel, the second subpixel and the third subpixel, for emitting a third color light in the third subpixel.
    Type: Application
    Filed: June 19, 2013
    Publication date: August 7, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ha-Jin Song, Se-Hun Kim, Dae-Yup Shin, Sang-Woo Lee, Sang-Woo Pyo, Byeong-Wook Yoo, Ji-Young Kwon, Bum-Suk Lee, Ji-Myoung Ye, Ji-Hwan Yoon
  • Publication number: 20140203256
    Abstract: An organic light emitting display device includes a first electrode, a second electrode facing the first electrode, an organic light emitting layer disposed between the first and second electrodes, a first auxiliary structure and a second auxiliary structure both of which are disposed between the first and second electrodes. The first electrode is disposed on a substrate having a first sub-pixel region, a second sub-pixel region and a third sub-pixel region. The organic light emitting layer includes a first organic light emitting layer, a second organic light emitting layer and a third organic light emitting layer. The first auxiliary structure includes a first doping pattern, a first resonance auxiliary pattern, a second doping pattern and a second resonance auxiliary pattern. The second auxiliary structure includes a third doping pattern, a third resonance auxiliary pattern, a fourth doping pattern and a fourth resonance auxiliary pattern.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 24, 2014
    Inventors: Sang-Woo Pyo, Ji-Hwan Yoon, Ha-Jin Song, Byeong-Wook Yoo, Hyo-Yeon Kim
  • Publication number: 20140191209
    Abstract: An organic light emitting diode (OLED) and a method of manufacturing the same. An auxiliary layer comprising a high density metallic compound and an emission layer are formed by a laser induced thermal imaging (LITI) process. The LITI process reduces manufacturing costs and time by eliminating the need for a mask patterning process. The metallic compound has a density of 2 g/cm3 or greater to promote adhesion and improve interfacial planarization. This results in improved luminance uniformity (i.e. luminance mura) between pixels within an OLED display device.
    Type: Application
    Filed: October 18, 2013
    Publication date: July 10, 2014
    Inventors: Kyul Han, Sang-Woo Lee, Hyo-Yeon Kim, Hye-Yeon Shim, Heun-Seung Lee, Sang-Woo Pyo, Ji-Hwan Yoon
  • Publication number: 20140175391
    Abstract: An organic light emitting diode display includes: a substrate; a thin film transistor provided on the substrate; a first electrode connected to the thin film transistor; an organic emission layer provided on the first electrode; an interlayer provided on the organic emission layer; an electron auxiliary layer provided on the interlayer and including an electron injection layer (EIL) and an electron transport layer (ETL); and a second electrode provided on the electron auxiliary layer, wherein the interlayer is made by mixing a material of the electron auxiliary layer.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 26, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ha-Jin Song, Sang-Woo PYO, Byeong-Wook Yoo, Ji-Young Kwon, Bum-Suk Lee, Ji-Myoung Ye, Ji-Hwan Yoon
  • Publication number: 20140154825
    Abstract: A first conductive member is positioned on a base substrate. A second conductive member is positioned on the first conductive member, the second conductive member being electrically coupled to the first conductive member, and having a resistivity higher than that of the first conductive member. A mask substrate is positioned on the second conductive member. A portion of the mask substrate that contacts the second conductive member is removed .
    Type: Application
    Filed: August 7, 2013
    Publication date: June 5, 2014
    Inventors: Hyo Yeon Kim, Ha-Jin Song, Sang-Woo Lee, Hye-Yeon Shim, Heun-Seung Lee, Kyul Han, Sang-Woo Pyo