Patents by Inventor Chang-min Park

Chang-min 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).

  • Publication number: 20190293535
    Abstract: A folding test device includes a jig including a first support plate and a second support plate rotatably connected to the first support plate, a first rotary plate supporting the first support plate, a second rotary plate supporting the second support plate and separated from the first rotary plate, a first frame separated from the second rotary plate and rotatably connected to the first rotary plate, and a second frame separated from the first rotary plate and rotatably connected to the second rotary plate, wherein the first frame and the second frame are rotatably connected to each other at an intersection point.
    Type: Application
    Filed: March 22, 2019
    Publication date: September 26, 2019
    Inventors: Sang Wol LEE, JIN SU SONG, JAE BONG LEE, CHANG MIN PARK, KYUNG MIN CHOI
  • Patent number: 10374177
    Abstract: The organic light emitting diode display may comprise a cover window including a display region and a non-display region that surrounds the display region; a flexible substrate arranged on a lower portion of the cover window, and including a first region that is spaced apart from the cover window and a second region that extends from the first region toward the cover window; and an adhesive layer arranged between the cover window and the flexible substrate to make the cover window and the flexible substrate adhere to each other.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Sang Ahn, Chang Min Park, Sang Wol Lee, Gyeong Ho Jeong
  • Publication number: 20190176693
    Abstract: An indirect lighting structure for a vehicle roof provides indirect lighting to at least a part of a roof glass through a light guide formed along a guide rail. The indirect lighting structure includes: a guide rail configured to support a roof glass positioned on the guide rail; a light source unit positioned at one end in a longitudinal direction of the guide rail; and a light guide which is configured to be in contact with the light source unit and positioned along the guide rail, in which the light guide is configured such that at least a part of the light guide is in contact with and inserted into the guide rail so as to guide light introduced from the light source to illuminate a pattern portion.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 13, 2019
    Inventors: Hoo Sang Park, Chang Min Park
  • Publication number: 20190176690
    Abstract: A structure for fixing a sunroof lighting module is formed by coupling a panel cover, a light guide, and a fixing clip. The structure for fixing the sunroof lighting module includes: a sunroof which is positioned at an opening of a roof of a vehicle; and a lighting module which is positioned on at least one end of the sunroof, in which the lighting module includes: an upper panel cover and a lower panel cover which are configured to surround a light source; and a light guide unit which is coupled to one end of the upper panel cover to face the light source, and the light guide unit includes: a light guide which is configured to transmit light emitted from the light source; and a fixing clip which is configured to fix the light guide and the upper panel cover.
    Type: Application
    Filed: July 12, 2018
    Publication date: June 13, 2019
    Inventors: Hoo Sang Park, Chang Min Park
  • Publication number: 20190090310
    Abstract: Disclosed is a technology for improving the quality of an IoT service by increasing the success rate of reception of a downlink packet transmitted to an IoT terminal through a new proposed method of solving a problem of downlink packet collision recognized by a BS.
    Type: Application
    Filed: June 14, 2017
    Publication date: March 21, 2019
    Inventors: Jae Seong JANG, Chang Min PARK, Dae Hyuk KIM, Jeong Seok SEO, Sang Min LEE, Deok Nyong KO
  • Publication number: 20180366665
    Abstract: The organic light emitting diode display may comprise a cover window including a display region and a non-display region that surrounds the display region; a flexible substrate arranged on a lower portion of the cover window, and including a first region that is spaced apart from the cover window and a second region that extends from the first region toward the cover window; and an adhesive layer arranged between the cover window and the flexible substrate to make the cover window and the flexible substrate adhere to each other.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 20, 2018
    Inventors: Sung Sang AHN, Chang Min PARK, Sang Wol LEE, Gyeong Ho JEONG
  • Patent number: 10133303
    Abstract: A display device includes a bottom chassis including first and second bottom portions, a mold frame including first and second frame portions disposed in respective first and second bottom portions, a hinge portion configured to couple the first and second frame portions to each other, a flexible display panel disposed on the mold frame and the hinge portion, a first curvature adjusting portion disposed between one side of the hinge portion and the display panel and coupled to the first frame portion, a second curvature adjusting portion disposed between the opposite side of the hinge portion and the display panel and coupled to the second frame portion, a first support portion coupled to the hinge portion and configured to support the first curvature adjusting portion, and a second support portion coupled to the hinge portion and configured to support the second curvature adjusting portion.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Min Park, Sang Wol Lee
  • Patent number: 10090478
    Abstract: The organic light emitting diode display may comprise a cover window including a display region and a non-display region that surrounds the display region; a flexible substrate arranged on a lower portion of the cover window, and including a first region that is spaced apart from the cover window and a second region that extends from the first region toward the cover window; and an adhesive layer arranged between the cover window and the flexible substrate to make the cover window and the flexible substrate adhere to each other.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: October 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Sang Ahn, Chang Min Park, Sang Wol Lee, Gyeong Ho Jeong
  • Patent number: 9996009
    Abstract: An extreme ultraviolet (EUV) exposure system capable of improving the yield of an EUV exposure process by improving EUV exposure performance, and furthermore, capable of increasing throughput or productivity of the EUV exposure process, the EUV exposure system including an EUV exposure apparatus configured to perform EUV exposure on a wafer disposed on a chuck table, a load-lock chamber combined with the EUV exposure apparatus and configured to supply and discharge the wafer to/from the EUV exposure apparatus, and an ultraviolet (UV) exposure apparatus configured to perform UV exposure by irradiating an entire upper surface of the wafer with a UV light without using a mask.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-min Park, Myung-soo Hwang, Ji-sun Lee
  • Publication number: 20180129341
    Abstract: A display device includes: a display panel including a first surface on which an image is displayed and a second surface opposing the first surface, and a touch sensor, wherein the touch sensor includes a plurality of driving electrodes, a plurality of sensing electrodes disposed to intersect the plurality of driving electrodes, and a touch controller supplying driving signals to the plurality of driving electrodes, wherein, as the display panel is folded or curved, the touch controller sequentially supplies driving signals to the plurality of driving electrodes or simultaneously supplies the driving signals to at least two driving electrodes among the plurality of driving electrodes.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 10, 2018
    Inventors: Joo Han Bae, Chang Min Park, Jin Seok Jang, Jae Won Choi
  • Patent number: 9885953
    Abstract: A method of manufacturing a mask includes dividing an upper surface of a template having a design pattern into a plurality of regions, the template being arranged over a polymer layer on a mask substrate, correcting a distorted region among the regions, pressing the polymer layer with the template to form a mask pattern corresponding to the design pattern on the polymer layer; and curing the mask pattern.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Seok Heo, Chang-Min Park, Seok-Hwan Oh, Jeong-Ho Yeo
  • Publication number: 20180031978
    Abstract: An extreme ultraviolet (EUV) exposure system capable of improving the yield of an EUV exposure process by improving EUV exposure performance, and furthermore, capable of increasing throughput or productivity of the EUV exposure process, the EUV exposure system including an EUV exposure apparatus configured to perform EUV exposure on a wafer disposed on a chuck table, a load-lock chamber combined with the EUV exposure apparatus and configured to supply and discharge the wafer to/from the EUV exposure apparatus, and an ultraviolet (UV) exposure apparatus configured to perform UV exposure by irradiating an entire upper surface of the wafer with a UV light without using a mask.
    Type: Application
    Filed: March 21, 2017
    Publication date: February 1, 2018
    Inventors: Chang-min Park, Myung-soo Hwang, Ji-sun Lee
  • Patent number: 9880588
    Abstract: There is provided a variable display device including: a variable display displaying an image and variably changed by external force; and at least one click button module provided separately from the variable display and attached onto the bottom of the variable display to correspond to a predetermined touch button region of the variable display.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: January 30, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Chang Min Park
  • Patent number: 9874809
    Abstract: A pellicle for a reflective mask including a pellicle body, a light shielding pattern, a grating pattern, and a pellicle frame. The pellicle body includes a central region and a peripheral region, wherein the peripheral region surrounds the central region. The light shielding pattern is formed on the peripheral region of the pellicle body; the grating pattern is formed on the light shielding pattern, and the pellicle frame is located under the peripheral region of the pellicle body, and the pellicle frame is configured to support the pellicle body.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 23, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-min Park, Jin-hong Park, Myung-soo Hwang
  • Patent number: 9781826
    Abstract: A foldable display is disclosed. In one aspect, the display includes a flexible display panel including a folding region at which the flexible display panel is configured to be folded and a rigid plane region. The display further includes a heat dissipation sheet attached to one side of the plane region and configured to dissipate heat generated by the flexible display panel. The heat dissipation sheet is not attached to the folding region.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyeong Ho Jeong, Chang Min Park, Sung Sang Ahn, Sang Wol Lee
  • Patent number: 9673195
    Abstract: According to some embodiments of the invention, a substrate doped with a P type impurity is provided. An N type impurity is doped into the substrate to divide the substrate into a P type impurity region and an N type impurity region. Active patterns having a first pitch are formed in the P type and N type impurity regions. Gate patterns having a second pitch are formed on the active patterns in a direction substantially perpendicular to the active patterns. Other embodiments are described and claimed.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Man-Hyoung Ryoo, Gi-Sung Yeo, Si-Hyeung Lee, Gyu-Chul Kim, Sung-Gon Jung, Chang-Min Park, Hoo-Sung Cho
  • Patent number: 9658522
    Abstract: A reflective extreme ultraviolet (EUV) mask includes a mask substrate, a reflecting layer on an upper surface of the mask substrate, and an absorbing layer pattern on an upper surface of the reflecting layer, the absorbing layer pattern having an exposing region and a peripheral region, and the absorbing layer pattern including a grating pattern in the peripheral region to reduce reflectivity of light incident on the peripheral region.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hyun Kim, Dong-Wan Kim, Chang-Min Park, In-Sung Kim, Dong-Gun Lee
  • Publication number: 20170123455
    Abstract: A display device includes a bottom chassis including first and second bottom portions, a mold frame including first and second frame portions disposed in respective first and second bottom portions, a hinge portion configured to couple the first and second frame portions to each other, a flexible display panel disposed on the mold frame and the hinge portion, a first curvature adjusting portion disposed between one side of the hinge portion and the display panel and coupled to the first frame portion, a second curvature adjusting portion disposed between the opposite side of the hinge portion and the display panel and coupled to the second frame portion, a first support portion coupled to the hinge portion and configured to support the first curvature adjusting portion, and a second support portion coupled to the hinge portion and configured to support the second curvature adjusting portion.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: Chang Min PARK, Sang Wol LEE
  • Patent number: 9632437
    Abstract: Provided are a lithography apparatus, a method for lithography and a stage system. The lithography apparatus includes a reticle stage having a reticle, at least one nozzle on at least one surface of the reticle stage and configured to allow shielding gas to flow to a surface of the reticle to form an air curtain, and a gas supply unit configured to supply the nozzle with the shielding gas.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: April 25, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hong Park, Jeong-Ho Yeo, Joo-On Park, Chang-Min Park
  • Patent number: D861625
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: October 1, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Sang Ahn, Chang Min Park, Sang Wol Lee