Patents by Inventor Kyong Ho Lim

Kyong Ho Lim 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: 10460641
    Abstract: Disclosed are an image processing circuit and image processing method which is capable of enhancing gray level presentation, and a display device using the same. The image processing circuit and image processing method performs a differential extension of each gray level to a higher gray level with respect to a perceived brightness picture level (PBPL) reflecting a distribution of high gray levels of the input image, and then overdrives a light emitting device in the region of high gray levels higher than or equal to the threshold gray level.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 29, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hong-Seop Shin, Kyong-Ho Lim, Yu-Hoon Kim
  • Patent number: 9685126
    Abstract: The present invention relates to method and device for tuning a color temperature in a digital display device, in which variation of color temperatures and color feelings between gradients is reduced for improving a picture quality.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: June 20, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Kyong-Ho Lim
  • Publication number: 20160351102
    Abstract: Disclosed are an image processing circuit and image processing method which is capable of enhancing gray level presentation, and a display device using the same. The image processing circuit and image processing method performs a differential extension of each gray level to a higher gray level with respect to a perceived brightness picture level (PBPL) reflecting a distribution of high gray levels of the input image, and then overdrives a light emitting device in the region of high gray levels higher than or equal to the threshold gray level.
    Type: Application
    Filed: May 13, 2016
    Publication date: December 1, 2016
    Inventors: Hong-Seop SHIN, Kyong-Ho LIM, Yu-Hoon KIM
  • Patent number: 9441953
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: September 13, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Hong Kim, Dong Gyou Lee, Kyong Ho Lim
  • Publication number: 20160033779
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Application
    Filed: October 13, 2015
    Publication date: February 4, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae Hong KIM, Dong Gyou LEE, Kyong Ho LIM
  • Patent number: 9182274
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 10, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Hong Kim, Dong Gyou Lee, Kyong Ho Lim
  • Publication number: 20150022804
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Hong KIM, Dong Gyou LEE, Kyong Ho LIM
  • Patent number: 8861835
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: October 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Hong Kim, Dong Gyou Lee, Kyong Ho Lim
  • Patent number: 8704880
    Abstract: An optical measuring apparatus and method for a stereoscopic display device are capable of measuring optical characteristics of the stereoscopic display device. The optical measuring apparatus includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, an image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device that measures luminance of the image transmitted via the image selection member and calculates 3D image crosstalk of the left eye image and the right eye image based on the measured luminance.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: April 22, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Kyong Ho Lim, Don Gyou Lee, Jae Hong Kim
  • Patent number: 8624963
    Abstract: Disclosed is a stereoscopic image display device and a method for manufacturing the same, which facilitates to improve picture quality and to realize wide viewing angle and high luminance of stereoscopic images by improving crosstalk of left-eye image and right-eye image, wherein the stereoscopic image display device comprises a display panel including lower and upper substrates which are bonded to each other, and are provided with a left-eye displaying area (LDA) for displaying a left-eye image of stereoscopic image, and a right-eye displaying area (RDA) for displaying a right-eye image of stereoscopic image; a light-guiding member formed in the upper substrate and overlapped with an interface between the left-eye displaying area (LDA) and the right-eye displaying area (RDA); and an optical-axis changing member formed on the upper substrate, wherein the optical-axis changing member includes a left-eye retarder corresponding to the left-eye displaying area, and a right-eye retarder corresponding to the right-
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: January 7, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Kyong Ho Lim
  • Publication number: 20120147061
    Abstract: The present invention relates to method and device for tuning a color temperature in a digital display device, in which variation of color temperatures and color feelings between gradients is reduced for improving a picture quality.
    Type: Application
    Filed: July 18, 2011
    Publication date: June 14, 2012
    Inventor: Kyong-Ho LIM
  • Publication number: 20120105871
    Abstract: An optical measuring apparatus for measuring optical characteristics of a stereoscopic display device includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, a image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device for measuring intensity or color information of the image transmitted via the image selection member.
    Type: Application
    Filed: December 27, 2010
    Publication date: May 3, 2012
    Inventors: Jae Hong Kim, Dong Gyou Lee, Kyong Ho Lim
  • Publication number: 20120105604
    Abstract: An optical measuring apparatus and method for a stereoscopic display device are capable of measuring optical characteristics of the stereoscopic display device. The optical measuring apparatus includes a test image supplier for generating a 3D test signal, a 3D display for displaying left-eye image and/or right-eye image based on the 3D test signal supplied from the test image supplier, an image selection member for selectively transmitting the left-eye image and right-eye image to be displayed on the 3D display, and a light measuring device that measures luminance of the image transmitted via the image selection member and calculates 3D image crosstalk of the left eye image and the right eye image based on the measured luminance.
    Type: Application
    Filed: December 27, 2010
    Publication date: May 3, 2012
    Applicant: LG Display Co., Ltd.
    Inventors: Kyong Ho Lim, Don Gyou Lee, Jae Hong Kim
  • Publication number: 20110298792
    Abstract: Disclosed is a stereoscopic image display device and a method for manufacturing the same, which facilitates to improve picture quality and to realize wide viewing angle and high luminance of stereoscopic images by improving crosstalk of left-eye image and right-eye image, wherein the stereoscopic image display device comprises a display panel including lower and upper substrates which are bonded to each other, and are provided with a left-eye displaying area (LDA) for displaying a left-eye image of stereoscopic image, and a right-eye displaying area (RDA) for displaying a right-eye image of stereoscopic image; a light-guiding member formed in the upper substrate and overlapped with an interface between the left-eye displaying area (LDA) and the right-eye displaying area (RDA); and an optical-axis changing member formed on the upper substrate, wherein the optical-axis changing member includes a left-eye retarder corresponding to the left-eye displaying area, and a right-eye retarder corresponding to the right-
    Type: Application
    Filed: June 2, 2011
    Publication date: December 8, 2011
    Inventor: Kyong Ho Lim