Patents by Inventor Seoung-jae Im

Seoung-jae Im 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: 20060238103
    Abstract: Provided is a photo-luminescence (PL) LCD including: electrodes that are disposed on bottom and top surfaces of front and rear substrate and create an electric field in liquid crystals (LCs); a nano-dot (ND) PL layer that is disposed on the bottom surface of the front substrate and emits light when irradiated with ultraviolet (UV) light, and a UV backlight unit that is located behind the rear substrate and supplying UV light to the ND PL layer. The UV backlight unit is excited by blue UV light having a wavelength range of 360 to 460 nm to emit light. The PD LCD having the above-mentioned structure suppresses absorption of UV light by LC and degradation of the LC while providing high light efficiency.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 26, 2006
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Jae-young Choi, Byung-ki Kim, Seoung-jae Im, Eun-sung Lee, Kyung-sang Cho, Eun-Joo Jang
  • Patent number: 6933674
    Abstract: A plasma display panel using carbon nanotubes is provided. In the front panel of the plasma display panel, transparent electrodes are formed as strips on the glass substrate. Bus electrodes are each formed as strips along the outer edge on the upper surface of each of the transparent electrodes and in parallel to the transparent electrodes. A dielectric layer is formed on part of the glass substrate, parts of the transparent electrodes, and the bus electrodes. Carbon nanotube strips are aligned on the dielectric layer such that the carbon nanotube strips face the transparent electrodes. A protective layer is formed on part of the dielectric layer and the carbon nanotube strips. Accordingly, the secondary electron emission characteristic is improved, resulting in a high-quality display screen having a high luminous efficiency and a high contrast ratio.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 23, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seoung-jae Im, Young-jun Park, Gi-young Kim
  • Patent number: 6885151
    Abstract: A flat lamp with horizontal facing electrodes is provided, in which a front substrate and a rear substrate are spaced such as to face each other. Walls between the front and rear substrates form a discharging space filled with a discharge gas. A plurality of front electrodes and a plurality of rear electrodes are provided on facing surfaces of the front and rear substrates, respectively. The front and rear electrodes, formed in strips, are arranged in such a way that the front electrodes alternate with the rear electrodes. Accordingly, the discharging distance between front and rear electrodes is lengthened, and many fine discharging operations occur between tip electrodes extending from the lateral sides of the electrode strips and flat portions of corresponding electrode strips. Therefore, a current concentration is prevented, thereby achieving uniform discharging. Also, brightness of the flat lamp increases.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 26, 2005
    Assignee: Samsung Electronics Co., Inc.
    Inventors: Gi-young Kim, Hyoung-bin Park, Seoung-jae Im, Ji-hyun Hong, Yoon-jung Lee
  • Patent number: 6705911
    Abstract: A method for manufacturing a flat fluorescent lamp is provided. The method involves: preparing a transparent front plate; preparing a transparent back plate facing the front plate, the back plate having a plurality of discharging electrodes thereon and a dielectric layer covering the discharging electrodes; forming a plurality of spacers between the front plate and the back plate to keep a separation gap therebetween; and forming a fluorescent layer by spraying phosphor slurry on one surface of at least one of the front plate and the back plate.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: March 16, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-jung Lee, Seoung-jae Im
  • Publication number: 20030193291
    Abstract: A plasma display panel using carbon nanotubes is provided. In the front panel of the plasma display panel, transparent electrodes are formed as strips on the glass substrate. Bus electrodes are each formed as strips along the outer edge on the upper surface of each of the transparent electrodes and in parallel to the transparent electrodes. A dielectric layer is formed on part of the glass substrate, parts of the transparent electrodes, and the bus electrodes. Carbon nanotube strips are aligned on the dielectric layer such that the carbon nanotube strips face the transparent electrodes. A protective layer is formed on part of the dielectric layer and the carbon nanotube strips. Accordingly, the secondary electron emission characteristic is improved, resulting in a high-quality display screen having a high luminous efficiency and a high contrast ratio.
    Type: Application
    Filed: April 14, 2003
    Publication date: October 16, 2003
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Seoung-Jae Im, Young-Jun Park, Gi-Young Kim
  • Patent number: 6628088
    Abstract: A plasma display panel using excimer gas is provided. Mixed excimer gases containing xenon (Xe) used to form excimer gas and iodine (I) as a halogen, are injected into the plasma display panel to be used as discharge gases. At least one selected from helium (He), neon (Ne), argon (Ar) and krypton (Kr) can be used as a buffering gas for the discharging gases. At least some of ultraviolet rays originate from the excimer gases and at least some of iodine is supplied from I2. The partial pressure of molecular iodine is less than or equal to a saturated vapor pressure, at operating temperature of the plasma display panel, at room temperature and at 0° C., respectively. The partial pressure of iodine inside the plasma display panel is in the range of 0.01 to 50% based on the total pressure of excimer gases.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: September 30, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-mo Kim, Hidekazu Hatanaka, Won-tae Lee, Seoung-jae Im, Yoon-jung Lee
  • Publication number: 20030137237
    Abstract: A flat lamp with horizontal facing electrodes is provided, in which a front substrate and a rear substrate are spaced such as to face each other. Walls between the front and rear substrates form a discharging space filled with a discharge gas. A plurality of front electrodes and a plurality of rear electrodes are provided on facing surfaces of the front and rear substrates, respectively. The front and rear electrodes, formed in strips, are arranged in such a way that the front electrodes alternate with the rear electrodes. Accordingly, the discharging distance between front and rear electrodes is lengthened, and many fine discharging operations occur between tip electrodes extending from the lateral sides of the electrode strips and flat portions of corresponding electrode strips. Therefore, a current concentration is prevented, thereby achieving uniform discharging. Also, brightness of the flat lamp increases.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 24, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Gi-Young Kim, Hyoung-Bin Park, Seoung-Jae Im, Ji-Hyun Hong, Yoon-Jung Lee
  • Publication number: 20020187708
    Abstract: A method for manufacturing a flat fluorescent lamp is provided. The method involves: preparing a transparent front plate; preparing a transparent back plate facing the front plate, the back plate having a plurality of discharging electrodes thereon and a dielectric layer covering the discharging electrodes; forming a plurality of spacers between the front plate and the back plate to keep a separation gap therebetween; and forming a fluorescent layer by spraying phosphor slurry on one surface of at least one of the front plate and the back plate.
    Type: Application
    Filed: February 26, 2002
    Publication date: December 12, 2002
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-jung Lee, Seoung-jae Im
  • Patent number: 6454967
    Abstract: Disclosed is a green-emitting phosphor for a plasma display panel, represented by the formula 1: Ba1−xMnxAl12−yByO19  [Formula 1] wherein 0.001≦x≦0.5 and 0.01≦y≦1.0. The green-emitting phosphor has excellent color purity and luminance characteristics and shows an increased white color temperature of 9000 K or higher and a wide color reproducibility when it is applied to a plasma display panel, thereby improving picture quality characteristics.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: September 24, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seoung-jae Im, Oshir Ya Manashirov
  • Publication number: 20020070678
    Abstract: A plasma display panel using excimer gas is provided. Mixed excimer gases containing xenon (Xe) used to form excimer gas and iodine (I) as a halogen, are injected into the plasma display panel to be used as discharge gases. At least one selected from helium (He), neon (Ne), argon (Ar) and krypton (Kr) can be used as a buffering gas for the discharging gases. At least some of ultraviolet rays originate from the excimer gases and at least some of iodine is supplied from I2. The partial pressure of molecular iodine is less than or equal to a saturated vapor pressure, at operating temperature of the plasma display panel, at room temperature and at 0° C., respectively. The partial pressure of iodine inside the plasma display panel is in the range of 0.01 to 50% based on the total pressure of excimer gases.
    Type: Application
    Filed: June 8, 2001
    Publication date: June 13, 2002
    Inventors: Young-mo Kim, Hidekazu Hatanaka, Won-tae Lee, Seoung-jae Im, Yoon-jung Lee