Patents by Inventor Jae-Chang Choi

Jae-Chang Choi 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: 20080198297
    Abstract: A backlight unit which includes a structure in which the sensitivity of a light sensor for detecting color reproducibility of white light is increased, and a liquid crystal display (“LCD”) device having the same. The backlight unit includes a light source which generates light, a light guide plate which guides the light incident from the light source, a light sensor which detects the light emitted from the light guide plate and a mold frame which receives the light source, the light guide plate, and the light sensor. The mold frame includes a receiving recess which receives the light sensor, and a light sensing structure formed on a sidewall thereof being in contact with a side of the light guide plate which reflects the light emitted from the light guide plate and provides the light emitted from the light guide plate to the light sensor.
    Type: Application
    Filed: December 17, 2007
    Publication date: August 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Chang CHOI, Dong-Gyun RA
  • Publication number: 20080084520
    Abstract: A backlight assembly including a light emitting diode (“LED”) assembly including a plurality of LED devices, a mold frame receiving a light guiding plate and including a coupling portion disposed at a side of a rear surface of the mold frame, and a sensor combined with the coupling portion and sensing an amount of light emitted from the plurality of LED devices.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Young-joo NAM, Sang-hoon PARK, Jae-chang CHOI, Dong-gyun RA
  • Patent number: 7304693
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: December 4, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak
  • Publication number: 20070008452
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Application
    Filed: September 12, 2006
    Publication date: January 11, 2007
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak
  • Patent number: 7126651
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: October 24, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak
  • Publication number: 20050179832
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Application
    Filed: April 12, 2005
    Publication date: August 18, 2005
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak
  • Patent number: 6919937
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: July 19, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak
  • Publication number: 20030058380
    Abstract: Disclosed is a liquid crystal display apparatus in which a liquid crystal display module and cases are tightly combined. At least one protuberance formed on a top chassis of the liquid crystal display module combines at least one fixing portion formed on a portion of a rear case corresponding to the at least one protuberance. Also, a fixing protuberance formed on a portion of a front case is inserted into between the liquid crystal display module and the rear case, thereby preventing the liquid crystal display module from being moved. Therefore, the liquid crystal display module and the cases are tightly combined, and productivity of the liquid crystal display apparatus can increase by reducing the number of parts demanded for fabrication of the liquid crystal display module and the cases.
    Type: Application
    Filed: April 2, 2002
    Publication date: March 27, 2003
    Inventors: Dong-Cheol Kim, Young-Bee Chu, Tae-Gil Kang, Young-Jae Lee, Jung-Ki Kim, Jae-Chang Choi, Jeong-Seok Oh, Yong-Seok Kwak