Patents by Inventor Tae-min Kang

Tae-min Kang 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: 7589461
    Abstract: The invention is directed to an organic electroluminescent (EL) display device having an improved light extracting efficiency due to a photonic crystal layer formed proximate one side of a stack. Among other elements, the stack may include a first electrode formed on a substrate, an organic light emitting layer formed above the first electrode, and a second electrode formed above the organic light emitting layer. Additionally, the photonic crystal layer may be configured to correspond to a wavelength of colored light. An organic EL display device having an improved light extracting efficiency may be manufactured using a thermal transfer donor film to adhere the photonic crystal layer to the stack.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 15, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Woo Park, Ho-Kyoon Chung, Jang-Hyuk Kwon, Mu-Hyun Kim, Seung-Yong Song, Young-Rag Do, Yoon-Chang Kim, Tae-Min Kang, Seong-Taek Lee
  • Patent number: 7588795
    Abstract: A manufacturing method of an active matrix organic light emitting diode (AMOLED) display and an apparatus for manufacturing the AMOLED display, where the display has improved surface flatness and thickness uniformity as well as an improved image quality at edge regions of a pattern. According to the exemplary embodiment of the present invention, an anode electrode is formed on a lower structure of a substrate, an organic layer is formed on the anode electrode by imaging a complex laser beam on a donor film disposed on the substrate having light emitting materials, the complex laser beam having energy distribution inclination over 2%/?m at a threshold energy. The donor film is removed, and a cathode electrode is formed on the organic layer.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: September 15, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seong Taek Lee, Jang Hyuk Kwon, Tae Min Kang, Joon Young Park
  • Publication number: 20090202950
    Abstract: Provided are a laser irradiation apparatus and method of fabricating an organic light emitting display using the same. The laser irradiation apparatus includes a mask positioned below the laser generator, and the mask is patterned such that lengths of an upper portion and a lower portion of a mask pattern are patterned longer than a length of a middle portion of the mask pattern with respect to the scanning direction. The method of fabricating an organic light emitting display includes scanning a laser beam on a predetermined region of the donor substrate using the laser irradiation apparatus to form an organic layer pattern on the substrate. When the organic layer pattern is formed using a laser induced thermal imaging (LITI) method, the transfer may be carried out using a laser beam having low energy, laser beam efficiency may be enhanced, the organic layer may be less damaged, and the quality of the organic layer pattern to be transferred may also be enhanced.
    Type: Application
    Filed: April 20, 2009
    Publication date: August 13, 2009
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Ho Lee, Tae-Min Kang, Seong-Taek Lee, Jin-Soo Kim
  • Patent number: 7563477
    Abstract: In a method for fabricating an organic electroluminescent display, a first electrode layer is formed on a transparent substrate, and a hole transport layer is formed on the first electrode layer. After an organic luminescent layer is formed on the hole transport layer by scanning a donor film disposed on the substrate using a laser beam, the donor film is removed and then a second electrode is formed on the organic luminescent layer. The laser beam dithers while performing the scanning operation to make the energy distribution uniform.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: July 21, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seong Taek Lee, Jang Hyuk Kwon, Tae Min Kang, Joon Young Park
  • Publication number: 20090179565
    Abstract: An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.
    Type: Application
    Filed: March 11, 2009
    Publication date: July 16, 2009
    Inventors: Tae-Min Kang, Myung-Won Song, Seong-Taek Lee, Jin-Woo Park, Hun Kim
  • Publication number: 20090181328
    Abstract: A laser irradiation apparatus and method of fabricating an organic light emitting display using the same are provided. The laser irradiation apparatus includes: a laser generator; a mask having means for changing a propagation path of a laser beam; and a projection lens. The method of fabricating an organic light emitting display includes: irradiating a laser beam on an edge of an irradiated region of a donor substrate using the laser irradiation apparatus with high intensity to form an organic layer pattern on a substrate. The laser beam having low intensity can perform a transfer process to improve laser beam efficiency. In addition, it is possible to reduce damage on the organic layer, and improve quality of the transferred organic layer pattern.
    Type: Application
    Filed: March 18, 2009
    Publication date: July 16, 2009
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Ho Lee, Tae-Min Kang, Seong-Taek LEE
  • Publication number: 20090179573
    Abstract: An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.
    Type: Application
    Filed: March 11, 2009
    Publication date: July 16, 2009
    Inventors: Tae-Min Kang, Myung-Won Song, Seong-Taek Lee, Jin-Woo Park, Hun Kim
  • Publication number: 20090166836
    Abstract: A stacked wafer level package includes a first semiconductor chip having a first bonding pad and a second semiconductor chip having a second bonding pad. Both bonding pads of the semiconductor chips face the same direction. The second semiconductor chip is disposed in parallel to the first semiconductor chip. A third semiconductor chip is disposed over the first and second semiconductor chips acting as a supporting substrate. The third semiconductor chip has a third bonding pad that is exposed between the first and the second semiconductor chips upon attachment. Finally, a redistribution structure is electrically connected to the first, second, and third bonding pads.
    Type: Application
    Filed: March 14, 2008
    Publication date: July 2, 2009
    Inventors: Jong Hoon KIM, Min Suk SUH, Seung Taek YANG, Seung Hyun LEE, Tae Min KANG
  • Publication number: 20090166561
    Abstract: A laser patterning apparatus for handling a donor film and improving compression uniformity between the donor film and an acceptor substrate is provided. The laser patterning apparatus includes: a stage that supports an acceptor substrate; a shielding mask that is placed on the acceptor substrate to form a pattern and is attached to a donor film on one surface thereof; a laser gun that is disposed at an upper part of the stage to radiate laser light to a portion of the donor film through the pattern of the shielding mask; a pressing member that corresponds to a portion of the shielding mask; and an actuator that is connected to one side of the pressing member to press the pressing member.
    Type: Application
    Filed: July 31, 2008
    Publication date: July 2, 2009
    Inventors: Do-Young Kim, Tae-Min Kang, Sang-Bong Lee, Seung-Mook Lee, Hee-Cheol Kang, Jin-Won Sun
  • Patent number: 7550835
    Abstract: The chip stack package includes at least a printed circuit board having a bond finger and a ball land, and at least two semiconductor chips stacked on the printed circuit board while being spaced from each other and formed with a plurality of bonding pads. A dummy pattern die is attached to the upper surface of each semiconductor chip. The dummy pattern die is formed with a circuit pattern on its lower surface for electrical connection to the semiconductor chip. The dummy pattern is also formed with a via pattern on its upper side which is connected to the circuit pattern. The first solder balls electrically connects the bond finger with the circuit pattern while electrically connecting the via pattern of stacked dummy pattern dies with the circuit pattern. The second solder balls are attached to the ball land of the printed circuit board.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: June 23, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tae Min Kang
  • Patent number: 7545403
    Abstract: An optical system has an image direction modulator and a laser induced thermal imaging (LITI) apparatus includes the optical system. The optical system includes a laser source for producing laser beams, and the image direction modulator has a first mode in which an image direction of the laser beams is modulated relative to a first direction and a second mode in which the image direction of the laser beams is modulated relative to a second direction.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: June 9, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-Min Kang, Myung-Won Song, Jae-Ho Lee
  • Patent number: 7542063
    Abstract: Provided are a laser irradiation apparatus and method of fabricating an organic light emitting display using the same. The laser irradiation apparatus includes a mask positioned below the laser generator, and the mask is patterned such that lengths of an upper portion and a lower portion of a mask pattern are patterned longer than a length of a middle portion of the mask pattern with respect to the scanning direction. The method of fabricating an organic light emitting display includes scanning a laser beam on a predetermined region of the donor substrate using the laser irradiation apparatus to form an organic layer pattern on the substrate. When the organic layer pattern is formed using a laser induced thermal imaging (LITI) method, the transfer may be carried out using a laser beam having low energy, laser beam efficiency may be enhanced, the organic layer may be less damaged, and the quality of the organic layer pattern to be transferred may also be enhanced.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: June 2, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Ho Lee, Tae-Min Kang, Seong-Taek Lee, Jin-Soo Kim
  • Patent number: 7534545
    Abstract: A laser induced thermal imaging (LITI) apparatus and a method of making an electronic device using the same are disclosed. The LITI apparatus includes a chamber, a substrate support, a contact frame, and a laser source or oscillator. The LITI apparatus transfers a transferable layer from a film donor device onto a surface of an intermediate electronic device. The LITI apparatus uses a magnetic force to provide a close contact between the transferable layer and the surface of the intermediate device. The magnetic force is generated by magnetic materials formed in two components of the LITI apparatus that are spaced apart interposing transferable layer and the surface of the intermediate device. Magnets or magnetic materials are formed in the two following components of the LITI apparatus: 1) the intermediate device and the film donor device; 2) the intermediate device and the contact frame; 3) the substrate support and the film donor device; or 4) the substrate support and the contact frame.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: May 19, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae Min Kang, Jin Soo Kim, Mu Hyun Kim, Sun Hoe Kim, Noh Min Kwak, Sang Bong Lee, Seong Taek Lee, Seung Hyun Lee, Sok Won Noh, Jin Wook Seong, Myung Won Song, Yeun Joo Sung, Byeong Wook Yoo
  • Patent number: 7525563
    Abstract: A laser irradiation apparatus and method of fabricating an organic light emitting display using the same are provided. The laser irradiation apparatus includes: a laser generator; a mask having means for changing a propagation path of a laser beam; and a projection lens. The method of fabricating an organic light emitting display includes: irradiating a laser beam on an edge of an irradiated region of a donor substrate using the laser irradiation apparatus with high intensity to form an organic layer pattern on a substrate. The laser beam having low intensity can perform a transfer process to improve laser beam efficiency. In addition, it is possible to reduce damage on the organic layer, and improve quality of the transferred organic layer pattern.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: April 28, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Ho Lee, Tae-Min Kang, Seong-Taek Lee
  • Patent number: 7521857
    Abstract: An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction and a method for fabricating the same. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 21, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-Min Kang, Myung-Won Song, Seong-Taek Lee, Jin-Woo Park, Hun Kim
  • Patent number: 7517593
    Abstract: A donor substrate for a laser induced thermal imaging method and an organic electroluminescent display device fabricated using the same are provided. The donor substrate may be constructed with base film; a light-to-heat conversion layer formed on the base film; a buffer layer formed on the entire surface of the light-to-heat conversion layer; a metal layer formed on the buffer layer; and a transfer layer formed of an organic material and formed on the metal layer, thereby enhancing the characteristics of a transfer pattern by transferring a small molecular material using the laser induced thermal imaging method.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: April 14, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Myung-Won Song, Ho-Kyoon Chung, Seong-Taek Lee, Mu-Hyun Kim, Byung-Doo Chin, Tae-Min Kang, Jae-Ho Lee
  • Patent number: 7501756
    Abstract: An organic light emitting display which is constructed with a TFT substrate having an insulating substrate and a TFT that has at least a source electrode and a drain electrode, a lower electrode formed on the TFT substrate and connected to one of source/drain electrodes, an insulating layer having an opening that exposes a portion of the lower electrode, an organic thin film layer formed on the exposed portion of the lower electrode and the insulating layer, and an upper electrode formed on the organic thin film layer, wherein the insulating layer has a taper angle less than 40° at an edge of the opening, and a step less than or equal to 3,000 ? is formed between the lower electrode and the organic thin film layer. The organic light emitting display can prevent device failure.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: March 10, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Mu-Hyun Kim, Myung-Won Song, Tae-Min Kang, Seong-Taek Lee, Yu-Sung Cho
  • Publication number: 20090050053
    Abstract: A crucible heating apparatus and a deposition apparatus including the same. The crucible heating apparatus includes: a crucible including a main body to house a deposition material, and a cover disposed on the main body, having a nozzle; a band coupled to the crucible, through contact parts; a thermocouple coupled to the band; a housing to house the crucible and the band; and a heater disposed inside the housing, to heat the deposition material.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Applicant: Samsung SDI Co., Ltd
    Inventors: Sok-Won NOH, Tae-Min Kang, Jin-Wook Seong, Sang-Bong Lee, Seung-Mook Lee, Jin-Woo Park, Sun-Hoe Kim, Myung-Jong Jung
  • Publication number: 20090026612
    Abstract: A semiconductor package having an improved connection structure and a method for manufacturing the same is described. The semiconductor package includes a substrate having a substrate body, connection pads that are located on one surface of the substrate body, and ball lands that are located on the other surface of the substrate body opposite the one surface. The ball lands are electrically connected to the connection pads. A semiconductor chip having bumps that are formed to correspond to the connection pads is connected to the substrate. An anisotropic conductive member having an insulation element is interposed between the substrate and the semiconductor chip to connect the substrate and the semiconductor chip. Electrically flowable conductive particles within the insulation element flow in the insulation element according to applied electric fields so as to arrange the electrically flowable conductive particles between the connection pads and the bumps.
    Type: Application
    Filed: March 6, 2008
    Publication date: January 29, 2009
    Inventor: Tae Min Kang
  • Publication number: 20080309230
    Abstract: An organic electroluminescence display device made by a laser induced thermal imaging process has a substrate having first and second electrode layers, and an organic layer having red, green, and blue light-emitting layers between the electrode layers. Thermosetting light-emitting materials are used to form the red, green, and blue light-emitting layers, and a laser is then selectively irradiated onto a light-to-heat conversion layer formed on the substrate to deliver heat energy converted from light energy through the light-to-heat conversion layer to the thermosetting light-emitting materials so that curing is progressed to form patterned light-emitting layers. In accordance with the fabrication method of the present invention, the light-emitting materials may be patterned using a laser, thereby fabricating a large scaled organic electroluminescence display device and simplifying the process by not using a mask when the light-emitting layers are formed.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 18, 2008
    Inventors: Nam-Choul Yang, Tae-Min Kang, Myung-Won Song, Seong-Taek Lee, Min-Chul Suh, Byung-Doo Chin, Mu-Hyun Kim