Patents by Inventor Kyung-Tae Chae

Kyung-Tae Chae 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: 9348187
    Abstract: A display device capable of reducing a resistance of a common electrode is presented. The display device includes: a substrate; a gate line, a data line, and a storage electrode line formed on the substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode connected with the thin film transistor; a common electrode formed on the pixel electrode; a plurality of microcavities between the common electrode and the pixel electrode; a roof layer formed on the common electrode; a liquid crystal layer in the microcavity; and an encapsulation layer formed on the roof layer to seal the microcavity, wherein the common electrode is connected with the storage electrode line at a position adjacent to the data line.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: May 24, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Tae Chae, Won Tae Kim, Sun Hwa Lee
  • Patent number: 9348163
    Abstract: A liquid crystal display is provided. A passivation layer is disposed on a substrate. A first microcavity is disposed on the passivation layer. A second microcavity is disposed on the passivation layer and spaced apart from the first microcavity at a first spacing and along a first direction. A fixing member is disposed between the first microcavity and the second microcavity. A roof layer is disposed on the first and the second microcavities and the fixing member, wherein the first and the second microcavities include liquid crystal molecules.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Seok Kim, Won Tae Kim, Han Joon Yoo, Dae Ho Lee, Kyung Tae Chae, Jong Seong Kim, Woo Jae Lee
  • Publication number: 20160124261
    Abstract: A manufacturing method of a liquid crystal display includes: providing a pixel electrode on an insulation substrate; providing a sacrificial layer on the pixel electrode; providing a common electrode on the sacrificial layer; providing a photoresist layer on the common electrode; exposing a portion of the photoresist layer, common electrode and the sacrificial layer with light; developing the portion of the photoresist layer exposed with the light; etching a layer between the photoresist layer and the sacrificial layer using the developed photoresist layer as a mask to expose the portion of the sacrificial layer exposed with the light; removing the portion of the sacrificial layer exposed with the light; providing a roof layer on the insulation substrate and etching the roof layer to form a liquid crystal injection hole therein; and removing the sacrificial layer exposed through the liquid crystal injection hole to form a microcavity.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Inventors: Tae Woo LIM, Kyung Tae CHAE, Sung Hwan WON, Seon Uk LEE, Jun Heui LEE
  • Publication number: 20160124260
    Abstract: A curved liquid crystal display and a method of manufacturing it are presented. The display includes: a substrate having a central portion; a thin film transistor disposed on the substrate; a pixel electrode connected to the thin film transistor; and a roof layer disposed to face the pixel electrode; and a liquid crystal layer disposed between the pixel electrode and the roof layer and formed by a plurality of microcavities, wherein the microcavities hold a liquid crystal material, wherein a difference between a maximum cell gap and a minimum cell gap in each of the microcavities increases with distance from the central portion of the substrate.
    Type: Application
    Filed: August 20, 2015
    Publication date: May 5, 2016
    Inventors: Kwang Soo BAE, Yu Jin KIM, Sang Il KIM, Kyung Tae CHAE
  • Publication number: 20160116792
    Abstract: A liquid crystal display includes: an insulation substrate; a microcavity layer disposed on the insulation substrate and having a reversed taper side wall; a pixel electrode disposed in the microcavity layer on the insulation substrate; a liquid crystal layer disposed in the microcavity layer; and a common electrode which covers the liquid crystal layer.
    Type: Application
    Filed: November 10, 2015
    Publication date: April 28, 2016
    Inventors: Kyung Tae CHAE, Sung Hwan WON, Yeun Tae KIM, Won Tae KIM, Seon Uk LEE
  • Patent number: 9323090
    Abstract: A display device may include a substrate and a first roof layer portion that is formed of a roof layer material and overlaps the substrate in a direction, the direction is perpendicular to a surface of the substrate. A lateral surface of the first roof layer portion is disposed in a plane. The display device may further a second roof layer portion formed of the roof layer material and separated from the first roof layer portion. The display device may further a common electrode portion disposed between the first roof layer portion and the substrate in the direction. A lateral surface of the common electrode portion is disposed in the plane or is spaced from the lateral surface of the first roof layer portion in a second direction parallel to the surface of the substrate. The display device may further a pixel electrode disposed between the first common electrode portion and the substrate.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Ho Lee, Won Tae Kim, Sung Hwan Won, You Young Jin, Kyung Tae Chae, Pil Sook Kwon, Yong Seok Kim, Han Joon Yoo, Seon Uk Lee, Woo Jae Lee, Tae Woo Lim
  • Patent number: 9268164
    Abstract: A manufacturing method of a liquid crystal display includes: providing a pixel electrode on an insulation substrate; providing a sacrificial layer on the pixel electrode; providing a common electrode on the sacrificial layer; providing a photoresist layer on the common electrode; exposing a portion of the photoresist layer, common electrode and the sacrificial layer with light; developing the portion of the photoresist layer exposed with the light; etching a layer between the photoresist layer and the sacrificial layer using the developed photoresist layer as a mask to expose the portion of the sacrificial layer exposed with the light; removing the portion of the sacrificial layer exposed with the light; providing a roof layer on the insulation substrate and etching the roof layer to form a liquid crystal injection hole therein; and removing the sacrificial layer exposed through the liquid crystal injection hole to form a microcavity.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Woo Lim, Kyung Tae Chae, Sung Hwan Won, Seon Uk Lee, Jun Heui Lee
  • Patent number: 9244301
    Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, a pixel electrode connected to the thin film transistor, a common electrode disposed on the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the pixel electrode and the common electrode, and a common electrode cutout is defined in the common electrode; a roof layer disposed on the common electrode, a liquid crystal injection hole formed through the common electrode and the roof layer, where the liquid crystal injection hole exposes a portion of the microcavity, a liquid crystal layer disposed in the microcavity, and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole and seals the microcavity.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 26, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok-Joon Hong, Kyung Tae Chae, Yong Seok Kim
  • Patent number: 9229257
    Abstract: A liquid crystal display includes: an insulation substrate; a microcavity layer disposed on the insulation substrate and having a reversed taper side wall; a pixel electrode disposed in the microcavity layer on the insulation substrate; a liquid crystal layer disposed in the microcavity layer; and a common electrode which covers the liquid crystal layer.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Tae Chae, Sung Hwan Won, Yeun Tae Kim, Won Tae Kim, Seon Uk Lee
  • Publication number: 20150378208
    Abstract: A display device includes a substrate, a thin film transistor, a pixel electrode, a roof layer, a plurality of microcavities, a groove, liquid crystal molecules, and an encapsulation layer. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed on the pixel electrode so as to be spaced apart from the pixel electrode while interposing the plurality of microcavities. The groove is formed in a first surface of the roof layer. The liquid crystal molecules are disposed in the microcavities. The encapsulation layer is disposed on the roof layer and seals the liquid crystal molecules in the microcavities.
    Type: Application
    Filed: January 13, 2015
    Publication date: December 31, 2015
    Inventors: Yu Jin KIM, Won Tae KIM, Kyung Tae CHAE
  • Publication number: 20150378192
    Abstract: A display device including: a substrate including a plurality of pixel areas; a thin film transistor formed on the substrate; a pixel electrode connected to the thin film transistor and formed on the first insulating layer; a liquid crystal layer filling a microcavity formed on the pixel electrode; a common electrode separated from the pixel electrode by the microcavity; a second insulating layer and a roof layer formed on the common electrode; an injection hole formed a side of the microcavity to expose a portion of the microcavity; an alignment layer formed inside the microcavity and on a surface of the injection hole; a third insulating layer formed on the roof layer; a blocking film formed at a position corresponding to the injection hole on the alignment layer; and an overcoat covering the injection hole to seal the microcavity and formed on the third insulating layer and the blocking film.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 31, 2015
    Inventors: You Young JIN, Sung Hwan WON, Woo Jae LEE, Kyung Tae CHAE
  • Publication number: 20150346561
    Abstract: A display device includes: a common voltage line formed on a display unit and at an outer side of the display unit; a first insulating layer formed on a thin film transistor on the display unit; a pixel electrode formed on the first insulating layer; a liquid crystal layer disposed in a microcavity formed on the pixel electrode; a common electrode spaced apart from the pixel electrode with the liquid crystal layer interposed therebetween; the common electrode contacting the common voltage line at the outer side of the display unit through a contact hole; a second insulating layer formed on the common electrode; a roof layer formed on the second insulating layer; an injection hole formed on the common electrode, second insulating layer, and roof layer; and an overcoat formed on the roof layer covering the injection hole and sealing the microcavity, wherein the roof layer covers the contact hole.
    Type: Application
    Filed: October 21, 2014
    Publication date: December 3, 2015
    Inventors: Won Tae KIM, Yu Jin KIM, Seon Uk LEE, Kyung Tae CHAE
  • Patent number: 9201257
    Abstract: A liquid crystal display includes: an insulation substrate; a microcavity layer disposed on the insulation substrate and having a reversed taper side wall; a pixel electrode disposed in the microcavity layer on the insulation substrate; a liquid crystal layer disposed in the microcavity layer; and a common electrode which covers the liquid crystal layer.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Tae Chae, Sung Hwan Won, Yeun Tae Kim, Won Tae Kim, Seon Uk Lee
  • Publication number: 20150331263
    Abstract: A liquid crystal display according to an exemplary embodiment includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected with the thin film transistor; a roof layer provided facing the pixel electrode; and a capping layer disposed on the roof layer, wherein a plurality of microcavities are between the pixel electrode and the roof layer, each microcavity includes a liquid crystal material, and the roof layer is formed of only at least one inorganic layer.
    Type: Application
    Filed: October 2, 2014
    Publication date: November 19, 2015
    Inventors: Ji Seong YANG, Tae Woo LIM, Kyung Tae CHAE
  • Patent number: 9171933
    Abstract: A display device includes a plurality of pixel areas and a thin film transistor disposed on a substrate. A first light blocking member is disposed on the thin film transistor, and a contact hole is disposed in the first light blocking member to expose a portion of the thin film transistor. A pixel electrode is disposed on the first light blocking member, and connected with the thin film transistor through the contact hole. A second light blocking member is disposed on the pixel electrode overlapping with the contact hole. A roof layer is disposed spaced apart from the pixel electrode with a microcavity interposed therebetween. An injection hole is disposed below the roof layer to expose a portion of the microcavity, and a liquid crystal layer is disposed in the microcavity. An encapsulation layer is disposed on the roof layer covering the injection hole so as to seal the microcavity.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Ho Lee, Won Tae Kim, Kyung Tae Chae, Yong Seok Kim, Sung Hwan Won
  • Publication number: 20150293414
    Abstract: A display device capable of reducing a resistance of a common electrode is presented. The display device includes: a substrate; a gate line, a data line, and a storage electrode line formed on the substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode connected with the thin film transistor; a common electrode formed on the pixel electrode ; a plurality of microcavities between the common electrode and the pixel electrode; a roof layer formed on the common electrode; a liquid crystal layer in the microcavity; and an encapsulation layer formed on the roof layer to seal the microcavity, wherein the common electrode is connected with the storage electrode line at a position adjacent to the data line.
    Type: Application
    Filed: September 3, 2014
    Publication date: October 15, 2015
    Inventors: Kyung Tae CHAE, Won Tae KIM, Sun Hwa LEE
  • Patent number: 9151976
    Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, a pixel electrode connected to the thin film transistor, a common electrode disposed opposite to the pixel electrode and spaced apart from the pixel electrode, where a microcavity is defined between the common electrode and the pixel electrode, and a cutout is defined in the common electrode, an insulating layer disposed on the common electrode, a roof layer disposed on the insulating layer, where a liquid crystal injection hole is defined through the common electrode and the roof layer such that the common electrode and the roof layer expose a portion of the microcavity, a liquid crystal layer disposed in the microcavity, and an encapsulation layer disposed on the roof layer, where the encapsulation layer covers the liquid crystal injection hole, and seals the microcavity.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Seong Yang, Won Tae Kim, Kyung Tae Chae, Seok-Joon Hong
  • Patent number: 9140939
    Abstract: A manufacturing method of a liquid crystal display includes forming a sacrificial layer on a liquid crystal panel, forming an etch stop layer on the sacrificial layer, forming a photo resist pattern on the etch stop layer, completing the etch stop layer using the photo resist pattern as a mask, ashing the photo resist pattern and the sacrificial layer by using the completed etch stop layer as a mask, forming a microcavity by removing a portion of the sacrificial layer and forming a liquid crystal layer in the microcavity.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: September 22, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon Uk Lee, Won Tae Kim, Yu Jin Kim, Woo Jae Lee, Kyung-Tae Chae
  • Publication number: 20150234214
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor; a pixel electrode; a roof layer; a liquid crystal layer; and a plurality of partitions. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed to face the pixel electrode. The liquid crystal layer is formed by a plurality of microcavities between the pixel electrode and the roof layer, wherein the microcavities include a liquid crystal material. The partitions are between the microcavities adjacent to each other, wherein the partitions may include an organic material and are arranged side by side to one another.
    Type: Application
    Filed: January 22, 2015
    Publication date: August 20, 2015
    Inventors: Seok-Joon HONG, Ji Seong YANG, Tae Woo LIM, Seon Uk LEE, Kyung Tae CHAE
  • Publication number: 20150200214
    Abstract: A method of manufacturing a liquid crystal display includes: forming a sacrificial layer by stacking a non-photosensitive resin; initiating formation of an etch stop layer on the sacrificial layer; forming a photoresist pattern; completing the etch stop layer using the photoresist pattern; ashing the photoresist pattern and the sacrificial layer by using the completed etch stop layer as a mask; forming a microcavity by removing the sacrificial layer; and forming a liquid crystal layer in the microcavity. The horizontal area occupied by the sacrificial layer is reduced by forming the common electrode or the etch stop layer at an upper side, thereby increasing the aperture ratio. Further, the vertical electric field is generated without distortion by horizontally forming the common electrode on the sacrificial layer and forming no common electrode on the sidewall thereof.
    Type: Application
    Filed: September 18, 2014
    Publication date: July 16, 2015
    Inventors: Koichi Sugitani, Hoon Kang, Yeun Tae Kim, Kyung Tae Chae