Patents by Inventor Woong-Jae Chang

Woong-Jae Chang 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: 20080060244
    Abstract: A frame for a display apparatus includes a plurality of frame members, each of which includes a side wall portion, a supporting portion, and a coupling portion, and a plurality of coupling members. The side wall portion covers a side of a display apparatus. The supporting portion is extended from the side wall to form an angle and covers a side portion of an upper surface of the display apparatus. The coupling portion is formed at one of the side wall portion and the supporting portion. The coupling members are disposed at corner portions of the display apparatus. Each of the coupling members is insertable into each coupling portion of the two frame members, respectively, to combine the two frame members with each other.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 13, 2008
    Inventors: Yong-Seok YANG, Woong-Jae Chang
  • Publication number: 20080037278
    Abstract: A lamp assembly includes a lamp housing for housing one or more predefined tubular lamps and at least a first lamp socket for coupling to and removably retaining respective first electrodes of the one or more lamps and for further coupling an integral conduction path of the lamp housing to at least one of the first electrodes.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 14, 2008
    Inventors: Woong-Jae Chang, Jung-Tae Kang, Joo-Yeon Won
  • Publication number: 20070048043
    Abstract: A fixing apparatus for an image forming apparatus including a fixing roller, a fixing belt moving endlessly while being in contact with an outer surface of the fixing roller, and an anti-serpentine unit selectively in contact with both lateral outer edges of the fixing belt, which biases the fixing belt toward a center of the fixing roller to prevent serpentine movement of the belt. Therefore, it is possible to address serpentine movement of the fixing belt without causing damage to the fixing belt.
    Type: Application
    Filed: May 17, 2006
    Publication date: March 1, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Woong-jae Chang
  • Publication number: 20060290836
    Abstract: A backlight assembly capable of reducing a frame size, and a liquid crystal display (LCD) apparatus having the backlight assembly is provided. The backlight assembly includes a bottom chassis having a receiving space, a lamp unit disposed at an edge portion of the receiving space, a light-guide plate disposed on the receiving space and an optical sheet. The lamp unit includes a light-emitting lamp a lamp cover covering a portion of the lamp and a sheet-fixing part that protrudes in an upward direction. The light-guide plate guides light from the lamp unit toward an upward direction. The optical sheet includes a fixing hole in which the sheet-fixing part is be inserted.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 28, 2006
    Inventor: Woong-Jae Chang
  • Publication number: 20060286831
    Abstract: A backlight assembly includes a receiving container, a first side mold, a printed circuit board and a plurality of lamps. The first side mold is on the side of the receiving container. The printed circuit board is combined with the first side mold, the printed circuit board including a plurality of conductive clips and a power supply line assembly for transmitting a lamp driving electric power. The lamps are combined with the conductive clips to generate light based on the lamp driving electric power. The power supply line assembly includes a first conductive line electrically connected to a subgroup of conductive clips and a second conductive line electrically connected to the other conductive clips. The first and second conductive lines are supplied with the lamp driving electric powers that have reverse phases to each other. Therefore, noise is decreased according to its waterfall curve to improve an image display quality.
    Type: Application
    Filed: April 12, 2006
    Publication date: December 21, 2006
    Inventors: Yoon-Soo Kwon, Jung-Tae Kang, Sang-Hoon Park, Jin-Ho Ha, Woong-Jae Chang
  • Publication number: 20060279957
    Abstract: A lamp, lamp holder, and a power supply substrate that allow easy fabrication of a backlight assembly or a power supply module for a display device are presented. The lamp includes a lamp tube and an electrode that extends outside the lamp tube to form a lamp lead. The lamp holder includes a body for holding the lamp tube and a power supply member for providing voltage to the lamp lead. A power supply module includes a power supply substrate combined with a lamp holder holding the lamp. The lamp holders are fixed to fixing portions of the power supply substrate or to fixing holes of a connection plate. As the design allows easy separation of the lamp holders from the power supply substrate, building a backlight assembly or a display device is facilitated.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Inventors: Yoon-Soo Kwon, Jung-Tae Kang, Sang-Hoon Park, Jin-Ho Ha, Woong-Jae Chang, Yong-Seok Yang, Min-Ho Ok, Kyung-Rok Ko, Jae-Hwan Chun, Jae-Seok Gho, Dal-Jung Kwon, Moon-Shik Kang, Young-Sup Kwon, Eui-Dong Hwang
  • Publication number: 20060274552
    Abstract: A backlight assembly includes a plurality of lamps, a receiving container and a conductive member. Each of the lamps includes a lamp body, a first electrode part disposed at a first end portion of the lamp body and a second electrode part disposed at a second end portion of the lamp body, the second end portion being opposite to the first end portion. The receiving container includes a bottom plate on which the lamps are disposed and a sidewall disposed at edge portions of the bottom plate to define a receiving space. The receiving container has a plurality of grounding portions formed on the bottom plate or the sidewalls. The conductive member electrically connects the second electrode part to one of the grounding portions.
    Type: Application
    Filed: May 18, 2006
    Publication date: December 7, 2006
    Inventors: Won-Ju Kim, Min-Ho Ok, Yoon-Soo Kwon, Jung-Tae Kang, Sang-Hoon Park, Jin-Ho Ha, Woong-Jae Chang
  • Publication number: 20060203464
    Abstract: A backlight assembly with excellent light efficiency and a display device provided with the backlight assembly is provided where the backlight assembly includes a plurality of light sources longitudinally arranged in parallel to each other, and a fixing member receiving the plurality of light sources. When a display area, formed by light emitted from the plurality of light sources, is divided by the plurality of light sources into a plurality of display area sections, an average area of the display area sections between light sources adjacent to each other is less than or equal to an area of a display area section between an edge of the display area and the light source most adjacent thereto.
    Type: Application
    Filed: October 28, 2005
    Publication date: September 14, 2006
    Inventors: Jung-Tae Kang, Yoon-Soo Kwon, Woong-Jae Chang
  • Publication number: 20060083569
    Abstract: A paper-discharging guide unit for guiding a printing paper to be discharged outside a wet electrophotographic image forming apparatus and for absorbing volatile organic compound gases soaked in the printing paper comprises a guide frame forming a discharge passage for the printing paper, a plurality of guide ribs formed in pairs of slanted lines symmetrical with respect to a centerline of the discharge direction of the printing paper of the guide frame inside the guide frame and guiding the printing paper, and an air-absorbing portion disposed below the guide frame and absorbing air from a plurality of spaces between the guide frame and the plurality of guide ribs.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 20, 2006
    Inventor: Woong-Jae Chang
  • Publication number: 20060062703
    Abstract: An automatic VOC concentration control apparatus is capable of adjusting the concentration of VOC in a catalytic device under a predetermined value. The automatic VOC concentration control apparatus includes a housing having an inlet port and an outlet port for introducing and discharging VOC vapor, respectively, one or more cooling tubes for cooling the VOC vapor introduced through the inlet port, and one or more porous members for holding droplets of VOC liquid thereon as the VOC vapor is condensed into liquid.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 23, 2006
    Inventor: Woong-jae Chang
  • Publication number: 20060034640
    Abstract: A wet-type image forming apparatus includes a body having an openable door. A developing unit is installed in the body and develops an image on a photosensitive body. An ink cartridge is detachable with respect to the body and stores ink therein. A fitting unit is installed between the developing unit and the ink cartridge. The fitting unit moves up and down to couple the developing unit to the ink cartridge to withdraw the ink from the developing unit.
    Type: Application
    Filed: August 9, 2005
    Publication date: February 16, 2006
    Inventors: Myoung-chan Kim, Seung-yoon Lee, Woong-jae Chang, Jeong-seop Hong
  • Publication number: 20050244184
    Abstract: Disclosed is an oxidation catalyst device comprising a duct, a fan, a liquefier member, heaters, and an oxidation catalyst filter. Here, the liquefier member liquefies part of the carrier vapor produced by a fixing device, so that a catalyst of the oxidation catalyst filter shares part of the oxidation of the carrier vapor. The control method of the oxidation catalyst device comprises the steps of intaking the carrier vapor produced inside of a fixing device; cooling and liquefying the carrier vapor taken in; performing a first oxidation on the remaining unliquefied carrier vapor; and performing a second oxidation on the liquefied carrier among the carrier vapor.
    Type: Application
    Filed: January 14, 2005
    Publication date: November 3, 2005
    Inventors: Sung-Dae Kim, Myoung-Chan Kim, Woong-Jae Chang, Jeong-Seop Hong
  • Publication number: 20050195588
    Abstract: An optical member is disposed between a light generating section that generates light and a display section that displays images by using the light generated by the light generating section. The optical member includes a light polarizing part and a light diffusing part. The light polarizing part polarizes the light generated by the light generating section. The light diffusing part is integrally formed with the light polarizing part to diffuse the light to enhance uniformity of luminance of the light. Therefore, weight, volume, etc. of the optical member may be reduced.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 8, 2005
    Inventors: Sung-Yong Kang, Jong-Dae Park, Yong-Gwang Won, Woong-Jae Chang