Patents by Inventor Ju Seong Park

Ju Seong Park 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: 11187839
    Abstract: A display device including a display panel and an eyepiece is provided. An image realized by the display panel can be provided to a user by passing through the eyepiece. The display device can further include a front quarter-wave plate and a rear quarter-wave plate in order to increase the path of light traveling toward the eyepiece from the display panel. A barrier can be disposed between the front quarter-wave plate and the rear quarter-wave plate. The barrier can reflect or transmit the light traveling toward the eyepiece from the display panel on a region-by-region, so that the loss of light recognized by the user through the eyepiece can be minimized.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 30, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong Park, Sung-Min Jung, Keong-Jin Lee
  • Patent number: 11130877
    Abstract: Disclosed is a coating material for a coating layer of an injection mold, the coating material including 100 parts by weight of a resin composition and about 30 to 40 parts by weight of a curing agent. The resin composition includes an amount of about 40 to 50 wt % of a first acrylic resin, an amount of about 5 to 15 wt % of a second acrylic resin having a weight average molecular weight less than a weight average molecular weight of the first acrylic resin, an amount of about 10 to 15 wt % of a carbon component, an amount of about 0.5 to 2 wt % of a matting agent, an amount of about 0.1 to 0.3 wt % of a catalyst and an amount of about 20 to 35 wt % of a solvent, all the wt % are based on the total weight of the resin composition.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: September 28, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Noroo Bee Chemical Co., Ltd., Moltex Co., Ltd.
    Inventors: Kyeong Hoon Jang, In Soo Han, Dae Sik Kim, Jae Hyun An, Seul Yi, Ik Jin Jung, Ju Seong Park, Soon Joon Jung, Seung Sik Han, Jae Beom Ahn, Yong Chul Lee, Kie Moon Sung, Soon Gi Kim, Hak Soon Choi
  • Patent number: 11118021
    Abstract: The present disclosure relates to a fiber-reinforced polypropylene composite resin composition with reduced odor for interior parts of vehicles which includes an inorganic deodorant with excellent effects of reducing odors so as to improve indoor air quality, and includes a mixture of a polypropylene polymer, a thermoplastic elastomer, a fiber-shaped filler, a coupling agent, a slip agent and a UV stabilizer. Interior parts of vehicles molded from the fiber-reinforced polypropylene composite resin composition according to the present disclosure deodorize unpleasant gas generated during the production process and have excellent mechanical properties, thus providing pleasant environments for drivers.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 14, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Han Ki Lee, Ju Seong Park, Jae Min Kim, Byung Soo Kim, Byung Wook Kang
  • Publication number: 20210203913
    Abstract: A 3D display apparatus including lenticular lenses is provided. The lenticular lenses may be disposed between a display panel and a viewing angle control film. A direction in which the lenticular lenses extend may be inclined with a direction in which pixel regions of the display panel are arranged. The display panel may include light-blocking patterns overlapping with a boundary of the lenticular lenses. Thus, in the 3D display apparatus, the quality of the image provided to the user may be improved.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 1, 2021
    Inventors: Young-Min KIM, Hoon KANG, Ju-Seong PARK, Myung-Soo PARK, Dong-Yeon KIM
  • Publication number: 20210203914
    Abstract: A 3D display apparatus in which lenticular lenses are disposed on a display panel is provided. The display panel can include pixel regions arranged in a pen-tile shape. For example, the display panel can include a first column of pixel regions in which a first pixel region displaying a first color and a second pixel region displaying a second color are alternatively disposed in a first direction, and a second column of pixel regions in which a third pixel region displaying a third color is disposed, and the first column and the second column can be alternatively disposed in a second direction perpendicular to the first direction. Each of the lenticular lenses can extend in an inclined direction. Thus, in the 3D display apparatus, the rate of color reproduction can be improved in a pen-tile shape.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Myung-Soo PARK, Hoon KANG, Ju-Seong PARK, Dong-Yeon KIM, Young-Min KIM, Se-Wan OH
  • Publication number: 20210199984
    Abstract: A 3D display apparatus is provided. The 3D display apparatus can include lenticular lenses between a display panel and a viewing angle control film. The display panel can have a curvature. The viewing angle control film can include a plurality of light-blocking patterns between a first control substrate and a second control substrate. A pitch and a height of the plurality of light-blocking patterns can be determined by a curvature radius of the lenticular lenses, a distance between the viewing angle control film and a set viewing region, and a length of the display panel corresponding to the set viewing region. Thus, in the 3D display apparatus, the quality of 3D images provided to a user can be improved.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Ju-Seong PARK, Hoon KANG, Myung-Soo PARK, Dong-Yeon KIM, Young-Min KIM, Se-Wan OH
  • Patent number: 10877310
    Abstract: A transparent display apparatus is provided. The transparent display apparatus may include a display panel realizing an image. The image realized by the display panel may display on an image formed by light passing through the display panel. In the transparent display apparatus, the moving path of light emitted from the display panel may longer than the moving path of light passing through the display panel, so that the quality and the viewing angle of the image realized by the display panel may be improved.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: December 29, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong Park, Sung-Min Jung, Sung-Woo Kim, Keong-Jin Lee, Myung-Soo Park
  • Publication number: 20200201039
    Abstract: A display apparatus providing a virtual image to user is provided. The display apparatus may include a hologram optical element on a path of light emitted from a display panel. The display panel may emit light having different peak wavelength ranges. The reflection angle or the refraction angle recorded in the hologram optical element is different according to the peak wavelength range. Thus, the display apparatus may provide a plurality of virtual images having different focal lengths to the user without physical movement or mechanical operation of the display panel.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 25, 2020
    Inventors: Ju-Seong PARK, Myung-Soo PARK
  • Publication number: 20200087470
    Abstract: The present disclosure relates to a fiber-reinforced polypropylene composite resin composition with reduced odor for interior parts of vehicles which includes an inorganic deodorant with excellent effects of reducing odors so as to improve indoor air quality, and includes a mixture of a polypropylene polymer, a thermoplastic elastomer, a fiber-shaped filler, a coupling agent, a slip agent and a UV stabilizer. Interior parts of vehicles molded from the fiber-reinforced polypropylene composite resin composition according to the present disclosure deodorize unpleasant gas generated during the production process and have excellent mechanical properties, thus providing pleasant environments for drivers.
    Type: Application
    Filed: April 23, 2019
    Publication date: March 19, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Han Ki Lee, Ju Seong Park, Jae Min Kim, Byung Soo Kim, Byung Wook Kang
  • Publication number: 20200017705
    Abstract: Disclosed is a coating material for a coating layer of an injection mold, the coating material including 100 parts by weight of a resin composition and about 30 to 40 parts by weight of a curing agent. The resin composition includes an amount of about 40 to 50 wt % of a first acrylic resin, an amount of about 5 to 15 wt % of a second acrylic resin having a weight average molecular weight less than a weight average molecular weight of the first acrylic resin, an amount of about 10 to 15 wt % of a carbon component, an amount of about 0.5 to 2 wt % of a matting agent, an amount of about 0.1 to 0.3 wt % of a catalyst and an amount of about 20 to 35 wt % of a solvent, all the wt % are based on the total weight of the resin composition.
    Type: Application
    Filed: November 5, 2018
    Publication date: January 16, 2020
    Inventors: Kyeong Hoon Jang, In Soo Han, Dae Sik Kim, Jae Hyun An, Seul Yi, Ik Jin Jung, Ju Seong Park, Soon Joon Jung, Seung Sik Han, Jae Beom Ahn, Yong Chul Lee, Kie Moon Sung, Soon Gi Kim, Hak Soon Choi
  • Patent number: 10466648
    Abstract: Disclosed herein is a holographic display which enables stereoscopic display of colors by changing a structure and mitigates a flickering effect by lowering the response speed. The holographic display may deliver an image to different positions for the left eye and right eye at the same time, thereby lowering the frequency necessary for supply of holographic image information. Thereby, the holographic display may address the issues of the afterimage effect and flickering effect in a liquid crystal panel-based spatial light modulator.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Ku Lee, Ju-Seong Park, Hyung-Seok Bang, Dong-Yeon Kim
  • Publication number: 20190292091
    Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.
    Type: Application
    Filed: October 19, 2018
    Publication date: September 26, 2019
    Inventors: Han Ki Lee, Mun Gyu Bak, Hak Soo Kim, Ju Seong Park, A Rom Oh, Seung Chan Baek, Song Woo Nam, Ju Hong Kim
  • Publication number: 20190204676
    Abstract: A transparent display apparatus is provided. The transparent display apparatus may include a display panel realizing an image. The image realized by the display panel may display on an image formed by light passing through the display panel. In the transparent display apparatus, the moving path of light emitted from the display panel may longer than the moving path of light passing through the display panel, so that the quality and the viewing angle of the image realized by the display panel may be improved.
    Type: Application
    Filed: December 3, 2018
    Publication date: July 4, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong PARK, Sung-Min JUNG, Sung-Woo KIM, Keong-Jin LEE, Myung-Soo PARK
  • Publication number: 20190196174
    Abstract: A display device including a display panel and an eyepiece is provided. An image realized by the display panel can be provided to a user by passing through the eyepiece. The display device can further include a front quarter-wave plate and a rear quarter-wave plate in order to increase the path of light traveling toward the eyepiece from the display panel. A barrier can be disposed between the front quarter-wave plate and the rear quarter-wave plate. The barrier can reflect or transmit the light traveling toward the eyepiece from the display panel on a region-by-region, so that the loss of light recognized by the user through the eyepiece can be minimized.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 27, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ju-Seong PARK, Sung-Min JUNG, Keong-Jin LEE
  • Publication number: 20180334561
    Abstract: A polypropylene complex resin composition for low-temperature injection molding, may include (A) a polypropylene resin; (B) an olefin-based elastomer; (C) an inorganic reinforcing agent; and (D) an additive, wherein (A) the polypropylene resin is a polypropylene mixed resin including: about 100 parts by weight of (A-1) a high-crystalline ethylene-propylene copolymer having an isotactic index of about 98 to 100% and a melt flow index value of about 20 to 50 g/10 min (2.16 kg, 230° C.); and about 5 to 20 parts by weight of (A-2) an ultrahigh fluidity homopolypropylene having a melt flow index value of about 1,000 to 1,800 g/10 min (2.16 kg, 230° C.).
    Type: Application
    Filed: November 8, 2017
    Publication date: November 22, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hyundai EP Co., Ltd.
    Inventors: Hak Soo Kim, Han Ki LEE, Yong Ho KIM, Dae Sik KIM, Mun Gyu BAK, Ju Seong PARK, Beom Ho KIM, Hyeok LEE, Hoi Jin CHOI
  • Publication number: 20170155894
    Abstract: Disclosed herein is a holographic display which enables stereoscopic display of colors by changing a structure and mitigates a flickering effect by lowering the response speed. The holographic display may deliver an image to different positions for the left eye and right eye at the same time, thereby lowering the frequency necessary for supply of holographic image information. Thereby, the holographic display may address the issues of the afterimage effect and flickering effect in a liquid crystal panel-based spatial light modulator.
    Type: Application
    Filed: November 22, 2016
    Publication date: June 1, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Yong-Ku LEE, Ju-Seong PARK, Hyung-Seok BANG, Dong-Yeon KIM
  • Patent number: 9618903
    Abstract: Disclosed are a holographic image display device and a method for driving the same which may stabilize luminance of a holographic image and reduce flicker. The holographic image display device includes a laser backlight unit, a surface light converter converting laser light emitted from the laser backlight unit into surface light-type laser light and emitting the surface light-type laser light, a spatial light modulator (SLM) implementing an input holographic interference pattern and projecting a holographic image at a viewing point using the surface light-type laser light, and an optical switching unit located between the laser backlight unit and the SLM and controlling polarization of the laser light. The optical switching unit blocks laser light emitted to the SLM in a blocking mode, and transmits the laser light emitted to the SLM in a transmission mode.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 11, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Jun Choi, Ju-Seong Park, Woo-Young Choe
  • Publication number: 20140293386
    Abstract: Disclosed are a holographic image display device and a method for driving the same which may stabilize luminance of a holographic image and reduce flicker. The holographic image display device includes a laser backlight unit, a surface light converter converting laser light emitted from the laser backlight unit into surface light-type laser light and emitting the surface light-type laser light, a spatial light modulator (SLM) implementing an input holographic interference pattern and projecting a holographic image at a viewing point using the surface light-type laser light, and an optical switching unit located between the laser backlight unit and the SLM and controlling polarization of the laser light. The optical switching unit blocks laser light emitted to the SLM in a blocking mode, and transmits the laser light emitted to the SLM in a transmission mode.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 2, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Jun Choi, Ju-Seong Park, Woo-Young Choe
  • Patent number: 8379034
    Abstract: Circuit for compensating a display defect in a video display device of the present invention includes a memory having position information on a plurality of regular patterned defective regions of a display panel, gray scale section information, a defect level data on each of the regular patterned defective regions, and a plurality of compensation data on each of the defect level data stored therein, a first compensation unit, upon reception of data to be displayed on the regular patterned defective regions, for determining defect level data on the regular patterned defective regions of the data to be displayed, selecting a compensation data set on the defect level data determined thus, and selecting a compensation data on the data to be displayed from the compensation data selected thus, for compensating the data to be displayed, and a second compensator for distributing the data compensated thus at the first compensation unit spatially and temporally by using dither patterns for making fine compensation, the
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: February 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Hee Hwang, Hye Jin Kim, Ju Seong Park
  • Patent number: 8085278
    Abstract: The present invention relates to a method for setting a compensation region for an irregular defect region in an image display device, including the steps of detecting an irregular display defect, setting a horizontal width of the irregular defect region detected thus, generating a plurality of guide lines which divide the irregular defect region in a horizontal direction along the horizontal width set thus automatically, setting upper and lower side boundary lines to the irregular defect region at every interval of the plurality of the guide lines to generate a plurality of main compensation regions defined by the plurality of guide lines and the upper and lower side boundary lines, and generating a plurality of upper, lower, left, and right supplementary compensation regions at upper, lower, left, and right sides of the plurality of main compensation regions, which maintain a gap of each of the plurality of the guide lines, automatically.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 27, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jong Hee Hwang, Hye Jin Kim, Ju Seong Park