Patents by Inventor Hoon Yim

Hoon Yim 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: 20150021589
    Abstract: Embodiments may disclose an organic light-emitting display device including a first substrate including a pixel area emitting light in a first direction, and a transmittance area that is adjacent to the pixel area and transmits external light; a second substrate facing the first substrate and encapsulating a pixel on the first substrate; an optical pattern array on the first substrate or the second substrate to correspond to the transmittance area, the optical pattern array being configured to transmit or block external light depending on the transmittance area according to a coded pattern; and a sensor array corresponding to the optical pattern array, the sensor array being arranged in a second direction that is opposite to the first direction in which the light is emitted, the second array receiving the external light passing through the optical pattern array.
    Type: Application
    Filed: October 10, 2014
    Publication date: January 22, 2015
    Inventors: Jin-Koo CHUNG, Sang-Hoon YIM, Chan-Young PARK, Jun-Ho CHOI, Seong-Min KIM
  • Publication number: 20150015834
    Abstract: A display apparatus may include a first substrate defined by a pixel region and a transmitting region adjacent to the pixel region, the pixel region emitting light in a first direction and the transmitting region transmitting external light; a second substrate that faces the first substrate and seals pixels defined on the first substrate; an optical filter arranged on a first side of the display apparatus through which light is emitted, the optical filter being configured to transmit circularly polarized light that rotates in a predetermined direction; and an optical reflectance conversion device arranged on a second side of the display apparatus, opposite the first side, the optical reflectance conversion device being configured to change a reflectance of the external light according to modes of operation of the display apparatus.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Sang-Hoon YIM, Young-Woo SONG, Jin-Koo CHUNG
  • Patent number: 8933443
    Abstract: An organic light-emitting display apparatus may include a substrate, a display portion formed on the substrate and including a light-emitting area and a non-light-emitting area surrounding the light-emitting area, an encapsulation member arranged to face the substrate with the display portion interposed therebetween, and a reflection member provided on the encapsulation member and including an opening portion aligned with the light-emitting area and a reflection portion surrounding the opening portion and extending to cover the non-light-emitting area, the opening portion comprising an opening. The size of the opening may be smaller than that of the light-emitting area and thus an edge of the light-emitting area may be covered by the reflection portion. The opening portion may have an inverted taper shape, the size of the opening gradually increasing toward the display portion.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Seong-Min Kim, Kyung-Ho Kim, Won-Jong Kim, Young-Woo Song
  • Patent number: 8933625
    Abstract: An organic light emitting display apparatus includes a substrate and a sealing member that are separated from each other; a pixel electrode on the substrate; a pixel defining layer on the pixel electrode and exposing a portion of the pixel electrode; an intermediate layer including a light emitting layer on the exposed portion of the pixel electrode; a facing electrode on the pixel defining layer and the intermediate layer; and a reflection member on a surface of the sealing member facing the substrate and patterned to have an opening portion that exposes the pixel electrode, wherein the opening portion is formed such that a boundary portion of the opening portion is closer to a center of the intermediate layer than a boundary portion of the portion of the pixel electrode exposed by the pixel defining layer.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 13, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Koo Chung, Sang-Hoon Yim, Jun-Ho Choi, Seong-Min Kim, Seung-Wook Chang, Hye-Dong Kim, Mu-Hyun Kim
  • Patent number: 8921153
    Abstract: In an aspect, an organic light emitting display device including a first substrate, a first electrode, an organic light emitting display structure, a second electrode and a second substrate is provided.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20140367646
    Abstract: An organic light-emitting display apparatus includes a first substrate. Pixels are formed on the first substrate. The pixels have a light-emitting region and a non-light-emitting region. A second substrate faces the first substrate. A reflective member is disposed on the second substrate. The reflective member includes openings corresponding to the light-emitting regions of the pixels and reflective portions corresponding to the non-light-emitting regions of the pixels. Each pixel includes a first electrode in the light-emitting region, a second electrode facing the first electrode, an organic layer between the first electrode and second electrode, and a pixel-defining layer covering edges of the first electrode. The pixel-defining layer is formed in the non-light-emitting region, and has a sidewall slope that provides an external light reflection path that is similar to that of the light-emitting region.
    Type: Application
    Filed: October 10, 2013
    Publication date: December 18, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: KYUNG-HO KIM, Jin-Koo Chung, Sang-Hoon Yim
  • Publication number: 20140339513
    Abstract: In an aspect, an organic light emitting display device including a first substrate, a first electrode, an organic light emitting display structure, a second electrode and a second substrate is provided.
    Type: Application
    Filed: September 30, 2013
    Publication date: November 20, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 8878181
    Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hoon Yim, Dae-Hwan Kim
  • Patent number: 8860027
    Abstract: Embodiments may disclose an organic light-emitting display device including a first substrate including a pixel area emitting light in a first direction, and a transmittance area that is adjacent to the pixel area and transmits external light; a second substrate facing the first substrate and encapsulating a pixel on the first substrate; an optical pattern array on the first substrate or the second substrate to correspond to the transmittance area, the optical pattern array being configured to transmit or block external light depending on the transmittance area according to a coded pattern; and a sensor array corresponding to the optical pattern array, the sensor array being arranged in a second direction that is opposite to the first direction in which the light is emitted, the second array receiving the external light passing through the optical pattern array.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Koo Chung, Sang-Hoon Yim, Chan-Young Park, Jun-Ho Choi, Seong-Min Kim
  • Publication number: 20140299850
    Abstract: An organic light-emitting display apparatus may include a substrate, a display portion formed on the substrate and including a light-emitting area and a non-light-emitting area surrounding the light-emitting area, an encapsulation member arranged to face the substrate with the display portion interposed therebetween, and a reflection member provided on the encapsulation member and including an opening portion aligned with the light-emitting area and a reflection portion surrounding the opening portion and extending to cover the non-light-emitting area, the opening portion comprising an opening. The size of the opening may be smaller than that of the light-emitting area and thus an edge of the light-emitting area may be covered by the reflection portion. The opening portion may have an inverted taper shape, the size of the opening gradually increasing toward the display portion.
    Type: Application
    Filed: September 30, 2013
    Publication date: October 9, 2014
    Inventors: Sang-Hoon Yim, Seong-Min Kim, Kyung-Ho Kim, Won-Jong Kim, Young-Woo Song
  • Patent number: 8854578
    Abstract: A display apparatus may include a first substrate defined by a pixel region and a transmitting region adjacent to the pixel region, the pixel region emitting light in a first direction and the transmitting region transmitting external light; a second substrate that faces the first substrate and seals pixels defined on the first substrate; an optical filter arranged on a first side of the display apparatus through which light is emitted, the optical filter being configured to transmit circularly polarized light that rotates in a predetermined direction; and an optical reflectance conversion device arranged on a second side of the display apparatus, opposite the first side, the optical reflectance conversion device being configured to change a reflectance of the external light according to modes of operation of the display apparatus.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Young-Woo Song, Jin-Koo Chung
  • Publication number: 20140291637
    Abstract: An organic light emitting display apparatus includes a substrate, an encapsulation member facing the substrate, a plurality of pixels between the substrate and the encapsulation member, each pixel including a light emission area and a non-emission area, a first electrode overlapping at least the light emission area, an intermediate layer on the first electrode and including an organic emission layer, a second electrode on the intermediate layer, and a reflective member on a bottom surface of the encapsulation member, the bottom surface of the encapsulation member facing the substrate, and the reflective member including an opening corresponding to the light emission area, and a reflective surface around the opening and corresponding to the non-emission area.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 2, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Hoon YIM, Seong-Min KIM, Kwan-Hyun CHO, Kyung-Ho KIM, Jun-Ho CHOI, Jin-Koo CHUNG, Young-Woo SONG
  • Patent number: 8803144
    Abstract: The present disclosure relates to a thin film transistor substrate for flat panel display device including oxide semiconductor. The present disclosure suggests a thin film transistor substrate for flat panel display device comprising: a transparent substrate; a thin film transistor layer having an oxide semiconductor material disposed on the transparent substrate; a passivation layer disposed on the whole surface of the thin film transistor layer; a pixel electrode formed on the passivation layer and contact the thin film transistor layer through a contact hole formed at the passivation layer; and a first ultra violet light absorbing layer disposed on the whole surface of the pixel electrode. Absorbing all of ultra violet light and passing all of the visible light, the photo-thermal characteristic is enhanced and the transparency property is not degraded.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 12, 2014
    Assignee: LG Display Co., Ltd
    Inventors: Hoon Yim, Daehwan Kim, Byungkook Choi, Sul Lee
  • Publication number: 20140160411
    Abstract: A display device and a method of manufacturing the same. The display device includes: a substrate; and a reflection member that is disposed on a surface of the substrate and has a first thickness in a first reflection region corresponding to a light-emitting region and a second thickness in a second reflection region corresponding to a non-light-emitting region.
    Type: Application
    Filed: October 18, 2013
    Publication date: June 12, 2014
    Inventors: Sang-Hoon Yim, Seong-Min Kim, Kyung-Ho Kim, Kwan-Hyun Cho, Young-Woo Song
  • Patent number: 8735883
    Abstract: A method for fabricating an oxide thin film transistor includes sequentially forming a gate insulating film, an oxide semiconductor layer, and a first insulating layer; selectively patterning the oxide semiconductor layer and the first insulating layer to form an active layer and an insulating layer pattern on the gate electrode; forming a second insulating layer on the substrate having the active layer and the insulating layer pattern formed thereon; and selectively patterning the insulating layer pattern and the second insulating layer to form first and second etch stoppers on the active layer. The oxide semiconductor layer may be a ternary system or quaternary system oxide semiconductor comprising a combination of AxByCzO (A, B, C=Zn, Cd, Ga, In, Sn, Hf, Zr; x, y, z?0).
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: May 27, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Dae-Hwan Kim, Byung-Kook Choi, Sul Lee, Hoon Yim
  • Publication number: 20140138643
    Abstract: Provided is a multi-display apparatus. The multi-display apparatus includes a first display including a region configured to allow external light to pass therethrough, a first module electrically coupled to the first display unit, a second display coupled to the first display, the second display overlapping the first module and being configured to not allow external light to pass therethrough, and a second module electrically coupled to the second display.
    Type: Application
    Filed: July 26, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Sang-Hoon Yim, Seong-Min Kim
  • Publication number: 20140070210
    Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hoon Yim, Dae-Hwan Kim
  • Patent number: 8659048
    Abstract: An organic light emitting device includes a first electrode formed over a substrate, an intermediate layer that is formed over the first electrode and includes an organic light emitting layer, and a second electrode that includes a central electrode unit disposed in a central region and a peripheral electrode unit separated from the central electrode unit and disposed in a peripheral region. The intermediate layer is disposed between the first and second electrodes. The organic light emitting device can readily secure a uniform brightness characteristic.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: February 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Ok-Keun Song, Young-Mo Koo
  • Publication number: 20130346831
    Abstract: Provided are a method of generating a forward error correction (FEC) packet for scalable video streaming and a server and a client apparatus using the same. The method includes generating a plurality of temporal layers (TLs) of which the number is a second number to provide temporal scalability for one group of pictures (GOP) constituted of a plurality of frames of which the number is a first number, allocating FEC data to the TL, and generating a transmission packet by interleaving at least one of the FEC data and video data constituted of at least one frame for the TL. FEC can be performed without receiving all data by allocating FEC data in units of TLs, and hence a delay can be minimized. In addition, there is an advantage in that robustness to burst errors is provided by applying interleaving between video data and FEC data for the TLs.
    Type: Application
    Filed: August 14, 2012
    Publication date: December 26, 2013
    Applicant: INDUSTRIAL COOPERATION FOUNDATION HALLA UNIVERSITY
    Inventors: Ho Jin Ha, Chang Hoon Yim
  • Publication number: 20130329288
    Abstract: A display apparatus includes a transparent display device with a first region displaying images, a second region transmitting external light, the first and second regions being adjacent to each other and alternating in a first direction, a first polarizer on an optical path emitted by the transparent display device and configured to linearly polarize the external light, a first retarder between the first polarizer and the transparent display device to delay a phase of the external light, a second polarizer on the transparent display device to linearly polarize the external light, and a pattern retarder between the second polarizer and the transparent display device, the pattern retarder including a second retarder to delay a wavelength of the external light by a first phase and a third retarder to delay the wavelength by a second phase, the second and third retarders being alternately arranged in the first direction.
    Type: Application
    Filed: February 13, 2013
    Publication date: December 12, 2013
    Inventors: Sang-Hoon YIM, Kwan-Hyun CHO, Kyung-Ho KIM, Young-Woo SONG