Patents by Inventor Hyeon Jin Seo

Hyeon Jin Seo 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: 7570338
    Abstract: A liquid crystal display panel includes an upper substrate, a lower substrate facing the upper substrate, a gate line and a data line on an upper surface of the lower substrate facing the upper substrate, the gate line and the data line cross each other to define a cell area, a pixel electrode formed in the cell area, a dummy source/drain electrode pattern over the gate line, and a ball spacer within the dummy source/drain electrode pattern, the ball spacer maintaining a cell gap between the upper substrate and the lower substrate.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: August 4, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Hoe Yoon, Se Jong Shin, Bong Chul Kim, Seung Hyun Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon
  • Patent number: 7557893
    Abstract: A color filter substrate includes a black matrix on a transparent insulating substrate, the blacking matrix defining a pixel area, color filters in the pixel area, an overcoating layer over the black matrix and the color filters, the overcoating layer having a plurality of grooves, a plurality of column spacers on the overcoating layer, and a plurality of ball spacers in the grooves of the overcoating layer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 7, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Bong Chul Kim, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Publication number: 20090091677
    Abstract: Disclosed herein are a liquid crystal display (LCD) device and a method for manufacturing the same, capable of preventing problems (i.e., movement of balls, damage to the surfaces that face spacers upon application of predetermined pressure, and variation in cell gap) associated with the use of the ball spacers. The liquid crystal display device includes a first substrate and a second substrate facing each other, a spacer formed on the first substrate, wherein the spacer includes a plurality of balls and a solid to aggregate the balls together and adhere the balls to the first substrate, a hard coating layer formed on the second substrate facing the spacer, and a liquid crystal layer filled between the first substrate and the second substrate.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 9, 2009
    Inventors: Jun Beom Cho, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20090091702
    Abstract: Disclosed is a liquid crystal display (LCD) device and a method for manufacturing the same, capable of maintaining a cell gap and preventing press defects caused by application of a predetermined external pressure via the use of ball spacers.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 9, 2009
    Inventors: Bong Chul Kim, Hyeon Jin Seo, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20090086151
    Abstract: A liquid crystal display (LCD) device maintains a cell gap and prevents press defects via the use of ball spacers. The liquid crystal display device includes first and second substrates facing each other, a plurality of first spacers, a plurality of second spacers, and a liquid crystal layer filled between the first and second substrates. The first spacers are formed between the first and second substrates at portions of a black matrix layer of the second substrate. The first spacers include a plurality of first balls with a first diameter and a first solid to aggregate the first balls. The second spacers are formed at portions of the black matrix layer between the first and second substrates. The second spacers include a plurality of second balls with a second diameter 0.2 to 0.6 ?m smaller than the first diameter and a second solid to aggregate the second balls.
    Type: Application
    Filed: August 26, 2008
    Publication date: April 2, 2009
    Inventors: Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20090086136
    Abstract: A liquid crystal display device includes a first substrate and a second substrate facing each other, a gate line and a common line arranged adjacent and parallel to each other on the first substrate, a data line crossing the gate line, a spacer comprising a plurality of balls, formed on the first or second substrate in a lower-height and flat region provided between the gate line and the common line, and a liquid crystal layer filled between the first substrate and the second substrate.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Inventors: Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20090086152
    Abstract: Disclosed herein are a liquid crystal display (LCD) device and a method for manufacturing the same, wherein ball spacers are fixedly used to reduce touch and press defects and the content of a solid mixed with balls is increased to partially widen an area of the upper surface of the spacer to thereby prevent damage of the substrate that faces the spacer or of the structure provided on the same.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Inventors: Hyeon Jin Seo, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20090079916
    Abstract: A liquid crystal display (LCD) device and a method for manufacturing the same are discussed. According to an embodiment, the liquid crystal display device includes a first substrate and a second substrate facing each other, wherein each of the first and second substrates includes pixel regions to form a matrix, a black matrix layer arranged in a region other than the pixel regions gate lines and data lines arranged in a portion corresponding to the black matrix layer spacers arranged in predetermined portions provided on the black matrix layer wherein each spacer includes one or more balls, and a solid to adhere the balls to the first or second substrate, and a liquid crystal layer filled between the first substrate and the second substrate.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 26, 2009
    Inventors: Bong Chul KIM, Hyeon Jin Seo, Jeong Hoon Lee, Dhang Kwon, Hang Sup Cho, Ho Su Kim
  • Publication number: 20080194853
    Abstract: Disclosed are a deuterated novel iridium complex phosphorescent material used as a light-emitting layer material of an organic electroluminescence device, a preparation method thereof and an organic electroluminescence device using the same. Compared with an organic electroluminescence device using the prior art light-emitting layer with no deuterium substitution, the organic electroluminescence device using the deuterated material of the present invention has improved luminescence efficiency, luminance, power efficiency, thermal stability and the like.
    Type: Application
    Filed: November 18, 2005
    Publication date: August 14, 2008
    Applicant: DOOSAN cORPORATION
    Inventors: Tae-hyung Kim, Kyoung-soo Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim
  • Publication number: 20080191614
    Abstract: Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
    Type: Application
    Filed: November 18, 2005
    Publication date: August 14, 2008
    Applicant: Doosan Corporation
    Inventors: Kyoung-soo Kim, Tae-hyung Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim
  • Publication number: 20080003380
    Abstract: A color filter substrate includes a black matrix on a transparent insulating substrate, the blacking matrix defining a pixel area, color filters in the pixel area, an overcoating layer over the black matrix and the color filters, the overcoating layer having a plurality of grooves, a plurality of column spacers on the overcoating layer, and a plurality of ball spacers in the grooves of the overcoating layer.
    Type: Application
    Filed: December 29, 2006
    Publication date: January 3, 2008
    Applicants: LG.PHILIPS LCD CO., LTD., ULVAC, INC.
    Inventors: Bong Chul Kim, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Publication number: 20070291385
    Abstract: A color filter substrate for a liquid crystal display device and a method of fabricating the same includes black matrixes on a transparent insulating substrate, the black matrixes defining pixel areas and having a first region and a second region, color filters in the pixel areas and having areas overlapping the first region of the black matrixes, and ball spacers above the second region of the black matrixes, wherein a thickness of the first region is greater than a thickness of the second region.
    Type: Application
    Filed: December 29, 2006
    Publication date: December 20, 2007
    Applicants: LG.PHILIPS LCD CO., LTD., ULVAC, INC.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff
  • Publication number: 20070292627
    Abstract: An apparatus for coating a polyimide layer includes a printing table in which a substrate is provided, an inkjet head having an injection surface with nozzles for injecting a polyimide liquid onto the substrate, a polyimide liquid supply tank filled with the polyimide liquid, an ultrasonic cleaner in which a cleaning liquid for cleaning the inkjet head is stored for cleaning the inkjet head with vibrations in the cleaning liquid generated by applying an ultrasonic signal, and a wiper for wiping an injection surface of the inkjet head.
    Type: Application
    Filed: December 29, 2006
    Publication date: December 20, 2007
    Applicants: LG. PHILIPS LCD CO., LTD., ULVAC, Inc.
    Inventors: Bong Chul Kim, Jun Beom Cho, Seung Hyung Lee, Kyo Yong Koo, Hyeon Jin Seo, Dhang Kwon, Robert Taff