Patents by Inventor Seong-Gyu Kwon

Seong-Gyu Kwon 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: 9671633
    Abstract: There is provided a display device including a substrate, a black matrix disposed on one side of the substrate, a thin film transistor disposed on the other side of the substrate, a common electrode and a pixel electrode disposed on the thin film transistor and overlapping with each other with an insulating layer disposed therebetween, a roof layer formed to be spaced apart from the pixel electrode and the common electrode with a microcavity disposed therebetween, including a supporting member, and having an injection hole through which a portion of the microcavity is exposed, a liquid crystal layer filling the microcavity, and an overcoat formed on the roof layer so as to cover the injection hole and sealing the microcavity.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Ho Lee, Seong Gyu Kwon, Hee Keun Lee
  • Publication number: 20170115698
    Abstract: Provided is a display device. The display device includes a mobile device and a cover connected thereto, in which the cover includes a contact pad portion and a display unit that are connected with an external power supply. The display unit includes a flexible substrate, a pixel electrode positioned on the flexible substrate, a roof layer facing the pixel electrode, and a liquid crystal layer formed by a plurality of microcavities including liquid crystal molecules between the pixel electrode and the roof layer, and the cover is connected to a surface of the mobile device to cover the front surface and the rear surface of the mobile device.
    Type: Application
    Filed: July 12, 2016
    Publication date: April 27, 2017
    Inventors: Dae Ho LEE, Seong Gyu KWON
  • Publication number: 20170108736
    Abstract: A display device according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; an electrode connected with the thin film transistor; a roof layer disposed on the electrode, while interposing a microcavity therebetween; an injection hole disposed along a side surface of the microcavity; a liquid crystal layer disposed in the microcavity; and an encapsulation layer covering the injection hole of the microcavity. The roof layer comprises a first portion disposed adjacent to the injection hole, and a second portion other than the first portion, and a height from the substrate to an upper surface of the first portion is lower than the height from the substrate to an upper surface of the second portion.
    Type: Application
    Filed: August 23, 2016
    Publication date: April 20, 2017
    Inventors: You Young JIN, Seong Gyu KWON, Sang Il KIM, Dae Ho LEE
  • Publication number: 20170059940
    Abstract: A color conversion panel according to an exemplary embodiment of the present invention includes an substrate, first, second, and third color conversion layers on the substrate and configured to emit lights of different colors, and a light blocking member between adjacent ones of the first, second, and third color conversion layers, wherein any one of the first, second, and third color conversion layers and the light blocking member is soluble.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Yong Seok Kim, Seong Gyu Kwon, Young Min Kim, Ki Soo Park, Hae Il Park
  • Patent number: 9581872
    Abstract: A slot die coater planarizing an upper surface of an encapsulation layer and a coating method using the same. The slot die coater includes a slit nozzle configured to supply a coating solution. The slit nozzle includes a hole vertically penetrating a center portion thereof, a first bottom surface disposed at a movement direction side of the slit nozzle with reference to the hole, and a second bottom surface disposed at an opposite direction side of the movement direction of the slit nozzle with reference to the hole. A width of the first bottom surface is different from the width of the second bottom surface.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: February 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Cheol Park, Gyeong Eun Eoh, Jong Soo Kim, Jun Heui Lee, Jong Wan Choi, Won Hyeng Pyen, Dae Ho Song, Seong Gyu Kwon, Kang-Il Cho
  • Patent number: 9568779
    Abstract: The disclosure relates to a display device, and more particularly to a display device having an improved aperture ratio and robustness. The display device may provide a display device including: a substrate; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor; microcavities formed on the pixel electrode, the microcavities holding liquid crystals; a roof layer formed on the microcavities and covering some sides of the microcavities; and an encapsulation layer formed on the roof layer to seal the microcavities, wherein sides of neighboring microcavities define openings are disposed in a matrix configuration.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Gyu Kwon, Seok-Joon Hong, Dae Ho Song, Seon Uk Lee, Woo Jae Lee
  • Publication number: 20170038626
    Abstract: An exemplary embodiment of the present disclosure provides a blind-type liquid crystal display, including: a fixing member; two or more connecting members branched from the fixing member; and a plurality of liquid crystal panels that are connected to the fixing member through the connecting members and are disposed to extend in one direction, wherein each of the plurality of liquid crystal panels may include an substrate, a roof layer facing the insulation substrate, and a liquid crystal layer that is disposed between the insulation substrate and the roof layer and includes a plurality of microcavities.
    Type: Application
    Filed: February 9, 2016
    Publication date: February 9, 2017
    Inventors: Jae Cheol PARK, Dae Ho SONG, Seong Gyu KWON, Sang Il KIM
  • Publication number: 20160320670
    Abstract: A display device includes a substrate, a thin film transistor positioned on the substrate, a pixel electrode connected to the thin film transistor, an alignment layer positioned on the pixel electrode, a liquid crystal layer including liquid crystal molecules formed on the alignment layer and positioned in a plurality of microcavities, a roof layer positioned such that the roof layer is spaced apart from the pixel electrode with a microcavity interposed therebetween, and an overcoat positioned on the roof layer and covering a trench positioned between the plurality of microcavities, in which in the liquid crystal layer, a pre-tilt angle manifestation group positioned to be adjacent to the alignment layer is formed, and the pre-tilt angle manifestation group includes a polymer of a compound represented by Chemical Formula 1.
    Type: Application
    Filed: February 8, 2016
    Publication date: November 3, 2016
    Inventors: Dae Ho SONG, Jae Cheol PARK, Seong Gyu KWON, You Young JIN
  • Publication number: 20160291365
    Abstract: A liquid crystal display including: a substrate including a display area and a peripheral area, a plurality of thin film transistors disposed on the substrate in the display area, a plurality of pixel electrodes disposed on the plurality of thin film transistors and connected to the plurality of thin film transistor, respectively, a plurality of roof layers disposed on the plurality of pixel electrodes so as to face the plurality of pixel electrodes, a plurality of liquid crystal layers disposed in a plurality of micro cavities formed between the plurality of pixel electrodes and the roof layer, and a capping layer covering liquid crystal inlets formed between the plurality of micro cavities and including a light blocking material suitable for inkjet processing, wherein the plurality of roof layers includes protrusion parts or concave parts disposed at one side of the plurality of roof layers adjacent to the capping layer.
    Type: Application
    Filed: March 3, 2016
    Publication date: October 6, 2016
    Inventors: Seong Gyu KWON, Jae Cheol PARK, Dae Ho SONG, You Young JIN
  • Patent number: 9459479
    Abstract: A display device includes: a substrate; a thin film transistor; a pixel electrode; a common electrode; a liquid crystal layer; and an encapsulation layer. The thin film transistor is disposed on the substrate. The pixel electrode is disposed on the thin film transistor. The common electrode is disposed on the pixel electrode and is separated from the pixel electrode via a microcavity therebetween. The liquid crystal layer fills the microcavity. The encapsulation layer is configured to seal the microcavity, wherein the encapsulation layer has an opening positioned at a portion overlapping the microcavity.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Woo Jae Lee, Seong Gyu Kwon, Don Chan Cho
  • Patent number: 9448399
    Abstract: A method of manufacturing an electrowetting display device includes forming a protection layer on a pixel electrode, forming a water-repellent layer on the protection layer, and removing the water-repellent layer from regions surrounding a display area of the pixel electrode. The water-repellent layer is formed by coating the protection layer with a hydrophilic material using a method such as slit coating. The water-repellent layer is removed using a method such as an edge bead removal method. The resulting water-repellent layer has a uniform thickness.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: September 20, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Dae Jin Park, Seong Gyu Kwon, Ji Seong Yang, Jun Heui Lee
  • Publication number: 20160202518
    Abstract: A liquid crystal display is provided. The liquid crystal display includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode disposed on the thin film transistor; a roof layer facing the pixel electrode; and partition walls forming a plurality of microcavities between the pixel electrode and the roof layer, wherein the plurality of microcavities include liquid crystal molecules, and the partition walls include light blocking, materials.
    Type: Application
    Filed: November 4, 2015
    Publication date: July 14, 2016
    Inventors: Seong Gyu KWON, Jae Cheol PARK, Dae Ho SONG, You Young JIN
  • Publication number: 20160195748
    Abstract: There is provided a display device including a substrate, a black matrix disposed on one side of the substrate, a thin film transistor disposed on the other side of the substrate, a common electrode and a pixel electrode disposed on the thin film transistor and overlapping with each other with an insulating layer disposed therebetween, a roof layer formed to be spaced apart from the pixel electrode and the common electrode with a microcavity disposed therebetween, including a supporting member, and having an injection hole through which a portion of the microcavity is exposed, a liquid crystal layer filling the microcavity, and an overcoat formed on the roof layer so as to cover the injection hole and sealing the microcavity.
    Type: Application
    Filed: September 8, 2015
    Publication date: July 7, 2016
    Inventors: Dae Ho LEE, Seong Gyu KWON, Hee Keun LEE
  • Publication number: 20160195759
    Abstract: A liquid crystal display according to an exemplary embodiment includes: an insulating substrate; gate lines and data lines positioned on the insulating substrate, and crossing each other while being insulated; thin film transistors connected to the gate lines and the data lines; pixel electrodes connected to the thin film transistors; light blocking members positioned on the thin film transistors; a common electrode spaced apart from the pixel electrodes while facing the pixel electrodes; a liquid crystal layer filling microcavities overlapping the pixel electrodes and including liquid crystal molecules; color filters formed on the common electrode; injection holes positioned in the common electrode and the color filters and extending to the microcavities; and an overcoat positioned on the color filters so as to cover the injection holes, in which the light blocking members include protrusion portions positioned so as to overlap the injection holes.
    Type: Application
    Filed: June 11, 2015
    Publication date: July 7, 2016
    Inventors: Sung Hwan WON, Seong Gyu KWON
  • Publication number: 20160124256
    Abstract: An exemplary embodiment provides a liquid crystal display including: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; a roof layer disposed to face the pixel electrode; and a capping layer disposed on the roof layer, wherein a plurality of microcavities are disposed between the pixel electrode and the roof layer, the microcavities form a liquid crystal layer including a liquid crystal material, a liquid crystal injection portion is formed between the microcavities, the capping layer is disposed to cover the liquid crystal injection portion, and the capping layer includes a light-blocking material and a water-soluble polymer material.
    Type: Application
    Filed: July 6, 2015
    Publication date: May 5, 2016
    Inventors: Dae Ho SONG, Seong Gyu KWON, Jae Cheol PARK, Kwang Soo BAE, You Young JIN
  • Publication number: 20160116794
    Abstract: An exemplary embodiment provides a liquid crystal display including: a substrate configured to include a display area and a peripheral area; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; a roof layer disposed to face the pixel electrode; a capping layer disposed on the roof layer; and a blocking film disposed in the peripheral area to surround a lateral surface of the capping layer, wherein a plurality of microcavities are formed between the pixel electrode and the roof layer in the display area, and the microcavities form a liquid crystal layer including a liquid crystal material, wherein a level of a top surface of the blocking film is higher than that of a top surface of the liquid crystal layer.
    Type: Application
    Filed: May 28, 2015
    Publication date: April 28, 2016
    Inventors: Dae Ho SONG, Seong Gyu KWON, Yong Seok KIM, Jae Cheol PARK, Seok-Joon HONG
  • Publication number: 20160016185
    Abstract: A slot die coater planarizing an upper surface of an encapsulation layer and a coating method using the same. The slot die coater includes a slit nozzle configured to supply a coating solution. The slit nozzle includes a hole vertically penetrating a center portion thereof, a first bottom surface disposed at a movement direction side of the slit nozzle with reference to the hole, and a second bottom surface disposed at an opposite direction side of the movement direction of the slit nozzle with reference to the hole. A width of the first bottom surface is different from the width of the second bottom surface.
    Type: Application
    Filed: February 16, 2015
    Publication date: January 21, 2016
    Inventors: Jae Cheol Park, Gyeong Eun Eoh, Jong Soo Kim, Jun Heui Lee, Jong Wan Choi, Won Hyeng Pyen, Dae Ho Song, Seong Gyu Kwon, Kang-II Cho
  • Patent number: 9201264
    Abstract: A display panel includes a substrate, a partition formed on the substrate and defining a plurality of openings, a plurality of color filters formed in the openings and having a substantially uniform thickness within each respective opening, and a spacer formed on the partition. The color filters and the spacer are formed through inkjet printing. The color filters have the substantially uniform thickness by the partition having a height which is greater than the thickness of the color filters during the inkjet printing. The height of the partition may be in a range of about 1.5 to about 2 times the thickness of the color filter.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi-Seop Shim, Kwang-Ho Lee, Jin-Seuk Kim, Jang-Sub Kim, Yoon-Ho Kang, Tae-Gee Min, Seong-Gyu Kwon, Chang-Hun Kwak, Jae-Hoon Kim, Jae-Jun Yu
  • Publication number: 20150309374
    Abstract: A display device may include a substrate having a first substrate portion, a second substrate portion, and a third substrate portion positioned between the first substrate portion and the second substrate portion. The display device may further include a first roof layer and a second roof layer formed of the same material, spaced from each other, and respectively overlapping the first substrate portion and the second substrate portion. The display device may further include a transistor overlapping the third substrate portion. The display device may further include a liquid crystal set. The display device may further include a common electrode portion positioned between the first substrate portion and the liquid crystal set. The display device may further include a sub-pixel electrode positioned between the liquid crystal set and the first roof layer and electrically connected to the transistor.
    Type: Application
    Filed: September 9, 2014
    Publication date: October 29, 2015
    Inventors: Seok-Joon HONG, Seong Gyu KWON, Ji Seong YANG
  • Publication number: 20150268491
    Abstract: The disclosure relates to a display device, and more particularly to a display device having an improved aperture ratio and robustness. The display device may provide a display device including: a substrate; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor; microcavities formed on the pixel electrode, the microcavities holding liquid crystals; a roof layer formed on the microcavities and covering some sides of the microcavities; and an encapsulation layer formed on the roof layer to seal the microcavities, wherein sides of neighboring microcavities define openings are disposed in a matrix configuration.
    Type: Application
    Filed: September 24, 2014
    Publication date: September 24, 2015
    Inventors: Seong Gyu KWON, Seok-Joon HONG, Dae Ho SONG, Seon Uk LEE, Woo Jae LEE