Patents by Inventor Dong-Hoon Chung

Dong-Hoon Chung 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: 10274646
    Abstract: Disclosed is a polarizing plate including a polarizing film and a protective film provided on the polarizing film, and a display device having the same.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: April 30, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jaehong Park, Tae Ho Kim, Dong Hoon Chung, Min Woo Hwang, Deok Woo Park, Jeong Yeun Kim, Woo Yong Cho, Hyung Il Yang
  • Patent number: 10048601
    Abstract: An apparatus for measuring a mask error and a method for measuring a mask error are provided. The apparatus for measuring a mask error includes a stage configured to accommodate a reference mask having a reference pattern, and a target mask adjacent to the reference mask such that a mask pattern of the target mask faces the reference pattern, a light source configured to irradiate the first beam onto the reference mask and the target mask, a light receiving unit including an image sensor, and the image sensor configured to receive a composite image including a first image generated from the reference pattern and a second image generated from the mask pattern, and generate a third image from the first image and the second image, and a measuring unit configured to measure an error of the mask pattern from the third image.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 14, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak-Seung Han, Dong-Gun Lee, Dong-Hoon Chung
  • Patent number: 10012771
    Abstract: Provided are a polarizing plate including a polarizing film and protective films provided on both sides of the polarizing film and a display device including the same.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: July 3, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jaehong Park, Tae Ho Kim, Dong Hoon Chung, Min Woo Hwang, Deok Woo Park, Jeong Yeun Kim, Woo Yong Cho, Hyung Il Yang
  • Patent number: 9892500
    Abstract: A method for measuring a critical dimension of a mask pattern, including generating a mask pattern using an optically proximity-corrected (OPC) mask design including at least one block; measuring a first critical dimension of a target-region of interest (target-ROI) including neighboring blocks having a same critical dimension (CD), in the mask pattern; determining a group region of interest including the target-ROI and at least one neighboring block adjacent to the target-ROI; measuring second CDs of the neighboring blocks of the group region of interest; and correcting a measuring value of the first CD using a measuring value of the second CDs.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Joo Lee, Won-Joo Park, Seuk-Hwan Choi, Byung-Gook Kim, Dong-Hoon Chung
  • Publication number: 20170061596
    Abstract: An apparatus for measuring a mask error and a method for measuring a mask error are provided. The apparatus for measuring a mask error includes a stage configured to accommodate a reference mask having a reference pattern, and a target mask adjacent to the reference mask such that a mask pattern of the target mask faces the reference pattern, a light source configured to irradiate the first beam onto the reference mask and the target mask, a light receiving unit including an image sensor, and the image sensor configured to receive a composite image including a first image generated from the reference pattern and a second image generated from the mask pattern, and generate a third image from the first image and the second image, and a measuring unit configured to measure an error of the mask pattern from the third image.
    Type: Application
    Filed: May 20, 2016
    Publication date: March 2, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hak-Seung HAN, Dong-Gun LEE, Dong-Hoon CHUNG
  • Publication number: 20160077517
    Abstract: A method for measuring a critical dimension of a mask pattern, including generating a mask pattern using an optically proximity-corrected (OPC) mask design including at least one block; measuring a first critical dimension of a target-region of interest (target-ROI) including neighboring blocks having a same critical dimension (CD), in the mask pattern; determining a group region of interest including the target-ROI and at least one neighboring block adjacent to the target-ROI; measuring second CDs of the neighboring blocks of the group region of interest; and correcting a measuring value of the first CD using a measuring value of the second CDs.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 17, 2016
    Inventors: Hyung-Joo LEE, Won-Joo PARK, Seuk-Hwan CHOI, Byung-Gook KIM, Dong-Hoon CHUNG
  • Publication number: 20150276992
    Abstract: Provided are a polarizing plate including a polarizing film and protective films provided on both sides of the polarizing film and a display device including the same.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 1, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Jaehong Park, Tae Ho Kim, Dong Hoon Chung, Min Woo Hwang, Deok Woo Park, Jeong Yeun Kim, Woo Yong Cho, Hyung Il Yang
  • Publication number: 20150226884
    Abstract: Disclosed is a polarizing plate including a polarizing film and a protective film provided on the polarizing film, and a display device having the same.
    Type: Application
    Filed: June 17, 2014
    Publication date: August 13, 2015
    Inventors: Jaehong Park, Tae Ho Kim, Dong Hoon Chung, Min-Woo Hwang, Deok Woo Park, Jeong Yeun Kim, Woo Yong Cho, Hyung Il Yang
  • Publication number: 20140005645
    Abstract: A tissue interface module has an applicator chamber on a proximal side of the tissue interface module and a tissue acquisition chamber on a distal side of the tissue interface module. The applicator chamber may include: an opening adapted to receive the applicator; an attachment mechanism positioned in the applicator chamber and adapted to attach the tissue interface module to the applicator; a sealing member positioned at a proximal side of the applicator chamber; and a vacuum interface positioned at a proximal side of the applicator chamber and adapted to receive a vacuum inlet positioned on a distal end of the applicator. The invention also includes corresponding methods.
    Type: Application
    Filed: September 3, 2013
    Publication date: January 2, 2014
    Inventors: Yoav Ben-Haim, Peter J. Bentley, Dong Hoon Chung, Daniel Francis, Jessi E. Johnson, Kevin Shan, Ted Su, Steven Kim
  • Publication number: 20130038716
    Abstract: In a method of inspecting a mask, an image of a first die in a corrected mask may be obtained. The corrected mask may be corrected using correction data that may include deformation factors related to an exposure process. The first image may be reversely corrected based on correction data. The reversely corrected first image may be compared with a reference image to determine whether the first die may be properly implemented or not.
    Type: Application
    Filed: July 18, 2012
    Publication date: February 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: WonIl CHO, Dong-Hoon CHUNG, Ji-Hoon NA, Sang-Hoon HAN
  • Patent number: 8056032
    Abstract: Methods of measuring a mean-to-target (MTT) based on pattern area measurements are provided including providing a design pattern. A plurality of design pattern measurements are measured for calculating an area of the design pattern based on a shape of the design pattern. A series of calculation measurements are calculated by continuously substituting a same variation into the design pattern measurements, and calculating a series of calculation areas corresponding respectively to the calculation measurements to generate a database including the calculation measurements and the calculation areas. An actual pattern is formed using the design pattern and an area of the actual pattern is measured. A calculation area corresponding to the area of the actual pattern is selected from the database and calculation measurements corresponding to the calculation area are selected. A difference between the design pattern measurements and the calculation measurements is calculated and the difference is set as an MTT.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-joo Lee, So-yoon Bae, Yo-han Choi, Jong-won Kim, Dong-hoon Chung
  • Patent number: 7859502
    Abstract: An array substrate includes a base substrate and a plurality of pixels on the base substrate. Each pixel includes a data line, first and second gate lines, first to third switching devices, and first and second pixel electrodes. The first and second gate lines cross the data line, and the second gate line is spaced apart from the first gate line. The first switching device is electrically connected to an adjacent gate line corresponding to an adjacent pixel. The second switching device is electrically connected to the data line and the first gate line. The third switching device is electrically connected to the data line and the second gate line. The first pixel electrode is electrically connected to the first and second switching devices, and the second pixel electrode is electrically connected to the first and third switching devices. The second pixel electrode is spaced apart from the first pixel electrode.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: December 28, 2010
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Jong-Ho Son, Dong-Hoon Chung, Sung-Hwan Hong, Myeong-Ha Kye, Il-Kook Huh
  • Patent number: 7847893
    Abstract: A display device includes a gate line and a data line aligned on a substrate, wherein the gate line and the data line cross each other to define a pixel area on the substrate, a gate electrode branching from the gate line, a source electrode branching from the data line on the gate electrode, a drain electrode spaced apart from the source electrode, a reflective electrode extending from the drain electrode, wherein the reflective electrode is formed in the pixel area, and an insulating layer pattern formed on the reflective electrode, wherein a protrusion pattern is provided at a surface of the insulating layer pattern.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: December 7, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hee-Wook Do, Yoon-Sung Um, Dong-Hoon Chung, Seung-Hoo Yoo, Sung-Hwan Hong, Kang-Woo Kim
  • Patent number: 7646465
    Abstract: Liquid crystal displays and fabrication methods thereof are provided. The liquid crystal display includes first substrate and second substrate facing the first substrate, and liquid crystal layer interposed therebetween. The first substrate includes a peripheral part spacer of which a surface includes a transparent conductive material, the peripheral part spacer being connected to a common voltage connector of the second substrate. A common voltage is applied to the first substrate through the common voltage connector and the peripheral part spacer. The peripheral part spacer is formed in the same process step with a display part spacer. To provide the peripheral part spacer with conductivity, the surface of the peripheral part spacer is covered with a transparent conductive material in the same process step in which the common electrode is formed on the first substrate.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: January 12, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Son, Sik-Young Jo, Dong-Hoon Chung
  • Publication number: 20090150849
    Abstract: Methods of measuring a mean-to-target (MTT) based on pattern area measurements are provided including providing a design pattern. A plurality of design pattern measurements are measured for calculating an area of the design pattern based on a shape of the design pattern. A series of calculation measurements are calculated by continuously substituting a same variation into the design pattern measurements, and calculating a series of calculation areas corresponding respectively to the calculation measurements to generate a database including the calculation measurements and the calculation areas. An actual pattern is formed using the design pattern and an area of the actual pattern is measured. A calculation area corresponding to the area of the actual pattern is selected from the database and calculation measurements corresponding to the calculation area are selected. A difference between the design pattern measurements and the calculation measurements is calculated and the difference is set as an MTT.
    Type: Application
    Filed: November 24, 2008
    Publication date: June 11, 2009
    Inventors: Hyung-joo Lee, So-yoon Bae, Yo-han Choi, Jong-won Kim, Dong-hoon Chung
  • Patent number: 7499129
    Abstract: The invention provides a LCD including an insulating substrate; a plurality of first signal lines formed on the insulating substrate; a plurality of second signal lines crossing and insulated from the first signal lines; a plurality of thin film transistors (TFT) coupled with the first and second signal lines; and a plurality of pixels including a plurality of first sub-pixel electrodes coupled with the TFTs and a plurality of second sub-pixel electrodes capacitively coupled with the first sub-pixel electrodes, wherein the pixels include a red (R) pixel, a green (G) pixel, and a blue (B) pixel and a voltage ratio or an area ratio of the second sub-pixel electrode with respect to the first sub-pixel electrode is different among the R, G, and B pixels to improve a brightness ratio of R, G, and B components at a lateral position.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: March 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jong-Ho Son, Dong-Hoon Chung, Jun-Woo Lee, Yong-Hwan Shin, Jae-Jin Lyu, Hak-Sun Chang, Hyun-Wuk Kim, Chang-Hun Lee
  • Publication number: 20080090157
    Abstract: A photo mask which enhances contrast and a method of fabricating the same are provided. The photo mask includes a transparent substrate and a light shielding layer pattern formed on the transparent substrate. The light shielding layer pattern includes apertures through which the transparent substrate is exposed. Depressions aligned with these apertures extend into the transparent substrate. Light exposed at an angle through the transparent layer would then pass into the depressions and reflect or diffuse from the sidewalls of the depressions and out through the apertures. The etching depth of the depressions is preferably equal to or less than a depth at which threshold intensity of the exposure light is saturated as the etching depth is increased. In another embodiment, the etching depth of the depressions is less than the wavelength of the exposure light.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Hoon CHUNG, Sung-Min HUH, Sung-Hyuck KIM, Gi-Sung YOON
  • Patent number: 7335449
    Abstract: A mask and a method of forming the mask obviate optical proximity effects. The mask includes a light-shielding layer on a transparent substrate. The light-shielding layer is patterned to form a main pattern and a phantom pattern. The main and phantom patterns each have a light shielding portion and a light-transmitting portion. The pitch of the features constituting the phantom pattern is identical to the pitch of the features constituting the main pattern. The shape of the light-transmitting features of the phantom pattern region is identical to the shape of the light-transmitting features of the main pattern region.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: February 26, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hyuck Kim, In-Kyun Shin, Dong-Hoon Chung
  • Publication number: 20070258635
    Abstract: In an embodiment, a mask inspection apparatus for detecting defects in a semiconductor pattern on a mask includes optics for combining light transmitted through or reflected from the mask with a reference beam. The two light beams are transmitted through a second-order non-linear optical system. Mask defects affect the transmitted/reflected light and may be detected by analyzing the transmitted light intensity. The second-order non-linear optical system amplifies selected elements of the combined beam, thus improving detection.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 8, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Do-Young Kim, Dong-Hoon Chung
  • Publication number: 20070171355
    Abstract: A polarizer includes a polarizing element, a first protective layer and a second protective layer and a surface treatment layer. The first and the second protective layer are formed on opposing sides of the polarizing element. The surface treatment layer is formed on the first protective layer and includes at least two kinds of scattering materials having different refraction indexes from each other. An inside haze value by the scattering materials is in a range of about 25% to about 50%. An outside haze value at the surface of the surface treatment layer is in a range of about 0.1% to about 1%.
    Type: Application
    Filed: October 10, 2006
    Publication date: July 26, 2007
    Inventor: Dong-Hoon Chung