Patents by Inventor Hye-Dong Kim

Hye-Dong Kim 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: 7579653
    Abstract: The invention provides an improved thin film transistor (TFT) that can be formed at room temperature and has an improved contact resistance between an active layer and source and drain electrodes, and further provides a flat display device using such a TFT. The TFT includes an active layer including at least two nano particle layers which include at least one nano particle type, an insulating layer interposed between the nano particle layers, a gate electrode insulated from the active layer, and source and drain electrodes formed in respective channels, the source and drain electrodes contact one of the nano particle layers of the active layer. The structure of the TFT facilitates the simultaneous manufacturing of a plurality of different types of TFTs.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: August 25, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Min-Chul Suh, Jae-Bon Koo, Hye-Dong Kim
  • Patent number: 7579199
    Abstract: A flexible flat panel display where nanoparticles are used for the active layer of the TFTs and the substrate is flexible and can be manufactured at room temperature, a flat panel display device having the same, a method of manufacturing a TFT, a method of manufacturing a flat panel display device, and a method of manufacturing a donor sheet. In making the TFTs in the display, a donor sheet is used to transfer the nanoparticles from the sheet to the substrate. The thin film transistor is placed on a substrate and includes a channel region which has at least one P-type or N-type nanoparticle arranged in a lengthwise direction, wherein the lengthwise direction of the P-type or N-type nanoparticles is parallel to a P-type or an N-type nanoparticle line partitioned off on the substrate.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 25, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Min-Chul Suh, Nam-Choul Yang, Jae-Bon Koo, Hye-Dong Kim, Ho-Kyoon Chung, Ul-Ho Lee
  • Publication number: 20090166636
    Abstract: A thin film transistor (TFT), a method of fabricating the same, and display device having the TFT of which the TFT includes a metal catalyst layer disposed on a substrate, a semiconductor layer disposed on the metal catalyst layer, a gate insulating layer disposed on the entire surface of the substrate, a gate electrode disposed on the gate insulating layer at a position corresponding to the semiconductor layer, an interlayer insulating layer disposed on the entire surface of the substrate, and source and drain electrodes disposed on the interlayer insulating layer and connected to the semiconductor layer, wherein the metal catalyst layer includes one of carbon, nitrogen, and halogen. The thin film transistor includes a poly-Si layer that may be formed to a smaller thickness than in conventional deposition methods thereby producing a TFT in which the remaining amount of metal catalyst in a semiconductor layer is reduced.
    Type: Application
    Filed: December 22, 2008
    Publication date: July 2, 2009
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Seong PARK, Yeon-Gon Mo, Hye-Dong Kim
  • Patent number: 7485576
    Abstract: A method of forming a conductive pattern in which the conductive pattern can be easily formed at a low temperature without a photolithography process by forming the conductive pattern using a laser ablation method and an inkjet method, an organic thin film transistor manufactured using the method, and a method of manufacturing the organic thin film transistor. The method of forming a conductive pattern in a flat panel display device includes preparing a base member, forming a groove having the same shape as the conductive pattern in the base member, and forming the conductive pattern by applying a conductive material into the groove. The base member has one of a structure including a plastic substrate having the groove and a structure including a substrate and an insulating layer which is arranged on the substrate and which has the groove.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: February 3, 2009
    Assignees: Samsung SDI Co., Ltd., Samsung SDI Germany GmbH
    Inventors: Min-Chul Suh, Jae-Bon Koo, Taek Ahn, Hye-Dong Kim, Fischer Joerg, Werner Humbs
  • Publication number: 20080309224
    Abstract: An organic light emitting display apparatus includes: a substrate; a display unit including a plurality of subpixels arranged on the substrate, the plurality of subpixels respectively emitting different colored light; a sealing substrate arranged on the display unit; a micro lens unit including a plurality of micro lenses arranged on a surface of the sealing substrate facing the display unit; barrier ribs arranged between the sealing substrate and the substrate to define a space between the micro lens unit and the display unit; and a black matrix arranged under the barrier ribs.
    Type: Application
    Filed: February 5, 2008
    Publication date: December 18, 2008
    Inventors: Noh-Min Kwak, Sung-Soo Koh, Myung-Won Song, Seong-Taek Lee, Hye-Dong Kim
  • Patent number: 7442960
    Abstract: A thin film transistor (TFT) including a semiconductor film that may be simply patterned, a method of manufacturing the TFT, a flat panel display (FPD) including the TFT, and a method of manufacturing the FPD. The TFT includes a gate electrode, source and drain electrodes electrically insulated from the gate electrode, and a semiconductor film electrically insulated from the gate electrode and including source and drain regions coupled to the source and drain electrodes, respectively, and a channel region coupling the source and drain regions. The semiconductor film has a groove that isolates the channel region from an adjacent TFT.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: October 28, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Chul Suh, Nam-Choul Yang, Jae-Bon Koo, Tae-Min Kang, Hye-dong Kim
  • Patent number: 7425165
    Abstract: An organic EL device includes a thin film transistor (TFT) array substrate including a first insulating substrate, a TFT formed on the first insulating substrate and a capacitor; and an organic EL substrate including a second insulating substrate, and a transparent electrode, an organic EL layer and a metal electrode, which are sequentially stacked on the second insulating substrate; wherein the TFT is electrically connected to the metal electrode.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: September 16, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hye-Dong Kim, Jung-Hyun Kwon
  • Publication number: 20080176349
    Abstract: A flexible flat panel display where nanoparticles are used for the active layer of the TFTs and the substrate is flexible and can be manufactured at room temperature, a flat panel display device having the same, a method of manufacturing a TFT, a method of manufacturing a flat panel display device, and a method of manufacturing a donor sheet. In making the TFTs in the display, a donor sheet is used to transfer the nanoparticles from the sheet to the substrate. The thin film transistor is placed on a substrate and includes a channel region which has at least one P-type or N-type nanoparticle arranged in a lengthwise direction, wherein the lengthwise direction of the P-type or N-type nanoparticles is parallel to a P-type or an N-type nanoparticle line partitioned off on the substrate.
    Type: Application
    Filed: December 21, 2007
    Publication date: July 24, 2008
    Inventors: Min-Chul Suh, Nam-Choul Yang, Jae-Bon Koo, Hye-Dong Kim, Ho-Kyoon Chung, Ul-Ho Lee
  • Patent number: 7381579
    Abstract: A flexible flat panel display where nanoparticles are used for an active layer and the substrate is a flexible plastic, a method of manufacturing the same, a method of manufacturing a thin film transistor (TFT) using the donor sheet, and a method of manufacturing a flat panel display device using the donor sheet. In making the TFTs in the display, a donor sheet is used to transfer the nanoparticles from the sheet to the substrate. The donor sheet can be manufactured at room temperature. The donor sheet has a base film, and a transfer layer being disposed at one side of the base film and transferable, wherein the transfer layer has a plurality of nanoparticles which are arranged to be approximately parallel to one another.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 3, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Chul Suh, Nam-Choul Yang, Jae-Bon Koo, Hye-Dong Kim, Ho-Kyoon Chung, Ul-Ho Lee
  • Patent number: 7378711
    Abstract: A flexible flat panel display where nanoparticles are used for the active layer of the TFTs and the substrate is flexible and can be manufactured at room temperature, a flat panel display device having the same, a method of manufacturing a TFT, a method of manufacturing a flat panel display device, and a method of manufacturing a donor sheet. In making the TFTs in the display, a donor sheet is used to transfer the nanoparticles from the sheet to the substrate. The thin film transistor is placed on a substrate and includes a channel region which has at least one P-type or N-type nanoparticle arranged in a lengthwise direction, wherein the lengthwise direction of the P-type or N-type nanoparticles is parallel to a P-type or an N-type nanoparticle line partitioned off on the substrate.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: May 27, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Chul Suh, Nam-Choul Yang, Jae-Bon Koo, Hye-Dong Kim, Ho-Kyoon Chung, Ul-Ho Lee
  • Patent number: 7375464
    Abstract: An organic light emitting display having red, green, blue, cyan, magenta, and yellow color modulation layers. The organic light emitting display includes a substrate, a first electrode arranged on the substrate, a second electrode arranged on the first electrode, an organic functional layer arranged between the first electrode and the second electrode, the organic functional layer comprises at least an emission layer, and red, green, blue, cyan, magenta, and yellow color modulation layers separated from each other, wherein one of the first electrode and the second electrode is transparent and is arranged between each color modulation layer and the emission layer. Accordingly, it is possible to maintain white balance even for an aged display while having enhanced color reproducibility.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 20, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Byung-Doo Chin, Min-Chul Suh, Mu-Hyun Kim, Hye-Dong Kim
  • Patent number: 7355198
    Abstract: An organic thin film transistor (TFT) includes: an organic semiconductor film; source and drain electrodes electrically connected to the organic semiconductor film; a gate electrode electrically insulated from the source and drain electrodes and the organic semiconductor film; and an organic acceptor film interposed between the source and drain electrodes and the organic semiconductor film.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: April 8, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Chul Suh, Nam-Choul Yang, Hye-Dong Kim
  • Patent number: 7321405
    Abstract: An organic electroluminescent display in which a black matrix with a concentration gradient of a transparent material and a metallic material is formed on the same surface as a pixel electrode. The black matrix and a pixel electrode of the organic electroluminescent display are formed using only one masking operation. The black matrix has a concentration gradient of a continuous gradient structure in which constituents of the transparent material are continuously decreased while constituents of the metallic material are continuously increased as a thickness of the black matrix is increased, a step gradient structure in which the constituents of the transparent material are gradually decreased while the constituents of the metallic material are gradually increased as the thickness of the black matrix is increased, or a multi-gradient structure in which the continuous gradient structure and/or the step gradient structure are repeated.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: January 22, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Il Park, Dong-Chan Shin, Hye-Dong Kim, Chang-Su Kim
  • Patent number: 7196747
    Abstract: Provided is a flat panel display in which no stripes appear on a screen, thereby improving image quality. The flat panel display has a matrix-type array of sub-pixels, each of which includes a driving thin film transistor, a first electrode driven by the driving thin film transistor, and a second electrode driving a light emission unit together with the first electrode. The driving thin film transistor includes semiconductor channels which are derived from a semiconductor layer. Heterogeneous straight lines are separated from each other on the semiconductor layer. An imaginary line connecting the semiconductor channels of one column is not parallel to the heterogeneous straight lines.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: March 27, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Bon Koo, Ji-Yong Park, Sang Il Park, Hye-Dong Kim
  • Patent number: 7187005
    Abstract: A flat panel display lowering an on-current of a driving thin film transistor (TFT), maintaining high switching properties of a switching TFT, maintaining uniform brightness using the driving TFT, and maintaining a life span of a light emitting device while the same voltages are applied to the switching TFT and the driving TFT without changing a size of an active layer. The flat panel display has a light emitting device, a switching thin film transistor including a semiconductor active layer having at least a channel area for transferring a data signal to the light emitting device, and a driving thin film transistor including a semiconductor active layer having at least a channel area for driving the light emitting device so that a predetermined current flows through the light emitting device according to the data signal, the channel areas of the switching TFT and the driving TFT having different directions of current flow.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: March 6, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Bon Koo, Ji-Yong Park, Hye-Dong Kim, Ul-Ho Lee
  • Publication number: 20060145146
    Abstract: A method of forming a conductive pattern in which the conductive pattern can be easily formed at a low temperature without a photolithography process by forming the conductive pattern using a laser ablation method and an inkjet method, an organic thin film transistor manufactured using the method, and a method of manufacturing the organic thin film transistor. The method of forming a conductive pattern in a flat panel display device includes preparing a base member, forming a groove having the same shape as the conductive pattern in the base member, and forming the conductive pattern by applying a conductive material into the groove. The base member has one of a structure including a plastic substrate having the groove and a structure including a substrate and an insulating layer which is arranged on the substrate and which has the groove.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 6, 2006
    Inventors: Min-Chul Suh, Jae-Bon Koo, Taek Ahn, Hye-Dong Kim, Fischer Joerg, Werner Humbs
  • Publication number: 20060138405
    Abstract: A thin film transistor having a transformed region that provides the same result as patterning a semiconductor layer, a flat panel display having the thin film transistor and a method for manufacturing the thin film transistor and the flat panel display are disclosed. The thin film structure includes a gate electrode, a source and a drain electrode, each insulated from the gate electrode and an organic semiconductor layer coupled to the source electrode and the drain electrode. The organic semiconductor layer includes the transformed region having a crystal structure distinguished from crystal structures of regions around the channel region.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 29, 2006
    Inventors: Nam-Choul Yang, Hye-Dong Kim, Min-Chul Suh, Jae-Bon Koo, Sang-Min Lee, Hun-Jung Lee
  • Publication number: 20060103290
    Abstract: An EL device with low manufacturing costs and improved yield due to simplified structure and use of an organic light emitting transistor and a method of manufacturing the same are disclosed.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 18, 2006
    Inventors: Min-Chul Suh, Jae-Bon Koo, Hye-Dong Kim
  • Publication number: 20060081332
    Abstract: Provided are a laser induced thermal imaging (LITI) apparatus, a laminator, and an LITI method using the apparatus. The LITI apparatus includes a chuck having at least one first lower ventilation hole for attracting a lower substrate toward the chuck. A cap is disposed on the chuck. The cap fixes an upper substrate and includes at least one first upper ventilation hole for pressurizing the upper substrate so that the upper substrate is closely adhered to the lower substrate. A laser irradiation system for irradiating a laser beam is disposed over the upper substrate adhered to the lower substrate. In this construction, the upper substrate can be laminated on the lower substrate.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 20, 2006
    Inventors: Tae-Min Kang, Hye-Dong Kim, Myung-Won Song, Jae-Ho Lee
  • Publication number: 20060082295
    Abstract: An organic light emitting display having red, green, blue, cyan, magenta, and yellow color modulation layers. The organic light emitting display includes a substrate, a first electrode arranged on the substrate, a second electrode arranged on the first electrode, an organic functional layer arranged between the first electrode and the second electrode, the organic functional layer comprises at least an emission layer, and red, green, blue, cyan, magenta, and yellow color modulation layers separated from each other, wherein one of the first electrode and the second electrode is transparent and is arranged between each color modulation layer and the emission layer. Accordingly, it is possible to maintain white balance even for an aged display while having enhanced color reproducibility.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 20, 2006
    Inventors: Byung-Doo Chin, Min-Chul Suh, Mu-Hyun Kim, Hye-Dong Kim