Patents by Inventor Yeun-Tae Kim

Yeun-Tae Kim 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: 9219192
    Abstract: A display apparatus includes a base substrate, a pixel on the base substrate, and a color filter part between the base substrate and the pixel. The pixel includes a cover layer defining a TSC (Tunnel Shaped Cavity) on the base substrate, an image display part provided in the TSC, and first and second electrodes which apply an electric field to the image display part.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: December 22, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeun Tae Kim, Hyang-Shik Kong, Namseok Roh, Hongsick Park, Changoh Jeong, Jinho Ju, Byeong-Jin Lee, Kyungtae Chae, Jiseong Yang
  • Patent number: 9201258
    Abstract: A display device includes a substrate and pixels arranged on the substrate in a matrix form. The substrate includes a display area in which the pixels are arranged and a non-display area disposed adjacent to a side of the display area. Each pixel includes a cover layer that extends in a row direction that includes a sidewall portion connected to the substrate and a cover portion spaced apart from the substrate and connected to the sidewall portion to define a tunnel-shaped cavity on the substrate. A width of the sidewall portion between adjacent pixels is less than a width of the sidewall portion disposed at an outermost position, and the cover layer seals one side of the tunnel-shaped cavity in the pixels arranged in a first row and a last row.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeun Tae Kim, Hee-Keun Lee, Jaekeun Lim
  • 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: 20150268497
    Abstract: A display device includes a substrate including a pixel area, a thin-film transistor formed on the substrate, a pixel electrode connected to the thin-film transistor, a common electrode formed on the pixel electrode, a space formed between the pixel electrode and the common electrode, and a roof layer formed on the common electrode. The common electrode and the roof layer include a protrusion protruding from at least one of an upper edge and a lower edge of the pixel area.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Inventors: HEE KEUN LEE, Yeun Tae Kim, Nam Seok Roh, Hae Ju Yun
  • Publication number: 20150266044
    Abstract: The present invention relates to a slot die coater preventing contamination of another layer contacting a coating layer, and a coating method using the same. The slot die coater according to an exemplary embodiment of the present invention includes a slit nozzle configured to deposit a photo-curable material upon a substrate, and an exposure unit coupled to the slit nozzle and positioned adjacent thereto, the exposure unit configured to irradiate light upon the photo-curable material deposited upon the substrate.
    Type: Application
    Filed: September 22, 2014
    Publication date: September 24, 2015
    Inventors: Jae Cheol PARK, Yeun Tae KIM, Gyeong Eun EOH, Dae Ho SONG, Min Jeong OH, Jun Heui LEE
  • 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
  • Patent number: 9075257
    Abstract: A display device includes a substrate including a pixel area, a thin-film transistor formed on the substrate, a pixel electrode connected to the thin-film transistor, a common electrode formed on the pixel electrode, a space formed between the pixel electrode and the common electrode, and a roof layer formed on the common electrode. The common electrode and the roof layer include a protrusion protruding from at least one of an upper edge and a lower edge of the pixel area.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Keun Lee, Yeun Tae Kim, Nam Seok Roh, Hae Ju Yun
  • Publication number: 20150160488
    Abstract: The substrate of a liquid crystal display has a non-square rectangular shape and is bent such that the longer edges of the rectangular shape are nonlinear while the shorter edges are linear. Liquid crystal containerizing micro-cavities of the display are organized to be elongated in the extending direction of the nonlinear longer edges of the substrate while gate lines and liquid crystal injection holes forming areas are formed extending in the extending direction of the linear shorter edges of the substrate. Concentration of mechanical stresses may be reduced due to this configuration.
    Type: Application
    Filed: August 20, 2014
    Publication date: June 11, 2015
    Inventors: Yeun Tae KIM, Dae Ho SONG, Soo Jung LEE, Hee-Keun LEE, Ji Yeon CHOI
  • Patent number: 9035926
    Abstract: A nano crystal display includes a display panel including a display area and a non-display area, a data driver which applies data voltages to pixels through data lines, a gate driver disposed in the non-display area and which sequentially applies gate signals to the pixels through gate lines in response to control signals, a control signal line part disposed in the non-display area and which applies the control signals to the gate driver, a cover layer which extends in a column direction and covers the gate driver and the control signal line part, and a sub-electrode which extends in the column direction and covers the cover layer. The pixels display gray scales corresponding to the data voltages provided through the data lines in response to the gate signals.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyoung Cho, Sunhwa Lee, Meehye Jung, Yeun Tae Kim, Sunghwan Won, Chongchul Chai
  • Patent number: 9007550
    Abstract: Provided are a display device capable of reducing a weight, a thickness, a cost, and a process time and having a durable structure, and a manufacturing method thereof. The display device includes: a substrate including a plurality of pixel areas; a thin film transistor formed on substrate; a first electrode connected to the thin film transistor to be formed in the pixel area; an organic layer formed on the first electrode so as to be connected along the adjacent pixel areas in a first direction among the pixel areas; a space positioned on the first electrode, of which parts of the upper surface and the side are surrounded by the organic layer; a liquid crystal formed to fill the space; and an overcoat formed to cover the rest side of the space which is not covered by the organic layer, in which a height of the upper surface of the organic layer is gradually lowered toward both edges of the pixel area from the center of the pixel area.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nak Cho Choi, Yeun Tae Kim
  • Publication number: 20150092144
    Abstract: A liquid crystal display is provided that includes: a substrate; a thin film transistor disposed on the substrate; a protection layer disposed on the thin film transistor; a first electrode and a second electrode disposed on the protection layer; an alignment layer disposed on the second electrode; and a roof layer facing the second electrode, wherein a plurality of microcavities are formed between the second electrode and the roof layer, the microcavities include a liquid crystal material, and the alignment layer includes a photo-alignment material.
    Type: Application
    Filed: April 30, 2014
    Publication date: April 2, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee-Keun LEE, Suk Hoon KANG, Sang Il KIM, Yeun Tae KIM, Dong Youb OH, Mi Hwa LEE, Woo Jae LEE, Jun Woo LEE
  • Patent number: 8988761
    Abstract: A transflective display apparatus includes a first electrode and a second electrode, which face each other and are separated from one another by a pixel electrode. In addition, a preparation voltage is applied to the first electrode or the second electrode before applying a driving voltage to the pixel electrode.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: March 24, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Seung-Jin Baek, Sangil Kim, Yeun Tae Kim, Hyeon Gu Cho
  • Publication number: 20150049282
    Abstract: A liquid crystal display device includes: a substrate; a thin film transistor disposed on the substrate; a pixel electrode connected with the thin film transistor; and a roof layer disposed to face the pixel electrode, wherein a plurality of microcavities having respective liquid crystal injection holes are formed between the pixel electrode and the roof layer, and the microcavities are filled with electrically orientatable liquid crystal molecules, wherein a light blocking layer disposed adjacent to the injection holes is formed and covering the thin film transistor, wherein the light blocking layer is covered by a passivation layer.
    Type: Application
    Filed: January 3, 2014
    Publication date: February 19, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yeun Tae KIM, Koichi SUGITANI, Jung Wook LEE, Hoon KANG, Min Su KIM, Seon-Il KIM, Hee-Keun LEE
  • Publication number: 20150015824
    Abstract: A liquid crystal display includes a thin film transistor on a substrate, a pixel electrode connected to a first terminal of the thin film transistor, a roof layer above the pixel electrode, a microcavity between the pixel electrode and the roof layer, the microcavity including a liquid crystal injection hole, a partition wall in the microcavity, the partition wall partitioning the microcavity into a first area and a second area, and a liquid crystal layer with liquid crystal molecules in the microcavity, the liquid crystal molecules in the first area being a different type than the liquid crystal molecules in the second area.
    Type: Application
    Filed: April 18, 2014
    Publication date: January 15, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee-Keun LEE, Yeun Tae KIM, Dae Ho SONG, Hae Ju YUN, Soo Jung LEE
  • Publication number: 20140354912
    Abstract: A display device includes: 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 in at least one of the plurality of pixel areas; a roof layer formed on the pixel electrode to be spaced apart from the pixel electrode by a microcavity therebetween; an injection hole formed on the roof layer so as to expose a part of the microcavity; a liquid crystal layer configured to fill the microcavity; at least one support member adjacent to the injection hole and formed in a column shape in the microcavity; and an encapsulation layer formed on the roof layer so as to cover the injection hole to seal the microcavity.
    Type: Application
    Filed: October 23, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Soo Jung Lee, Yeun Tae Kim, Hee-Keun Lee, Sung Jun Kim, Sung Woo Cho
  • Publication number: 20140354922
    Abstract: A display device includes a substrate, a thin film transistor disposed on the substrate, and a pixel electrode electrically connected to the thin film transistor. The display device further includes a roof layer overlapping the pixel electrode with a cavity being positioned between the roof layer and the pixel electrode, the cavity having an opening. The display device further includes an alignment layer and a liquid crystal layer disposed inside the cavity. The display device further includes a plurality of bead members disposed at the opening and including a first bead member, a first portion of the first bead member being disposed inside the cavity, a second portion of the first bead member being disposed outside the cavity. The display device further includes an encapsulation layer overlapping the roof layer and overlapping the plurality of bead members.
    Type: Application
    Filed: March 20, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Woo Yong SUNG, Yeun Tae KIM, Tae Gyun KIM, Jae Cheol PARK, Hyoung Sub LEE, Tae Woon CHA
  • Publication number: 20140333878
    Abstract: A liquid crystal display is disclosed. The liquid crystal display may include an insulation substrate a pixel electrode formed on the insulation substrate a lower alignment layer formed on the pixel electrode and includes an inorganic alignment layer formed of an inorganic insulating material, a liquid crystal layer disposed in a microcavity formed on the lower alignment layer, an upper alignment layer formed along a side and an upper surface of the microcavity and includes an inorganic alignment layer formed of an inorganic insulating material, and a common electrode formed on the upper alignment layer. The upper alignment layer and the lower alignment layer enclose the liquid crystal layer. A method of manufacturing a liquid crystal display is also disclosed.
    Type: Application
    Filed: April 9, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee Keun LEE, Yeun Tae KIM, Soon Joon RHO
  • Publication number: 20140285760
    Abstract: The liquid crystal display including a substrate; a thin film transistor disposed on the substrate; a field generating electrode in electrical communication with the thin film transistor; and an alignment layer disposed on the field generating electrode, wherein the alignment layer includes a self-assembled monolayer (“SAM”) derived from at least a first precursor compound and a second precursor compound, and wherein the first and second precursor compounds are different.
    Type: Application
    Filed: August 29, 2013
    Publication date: September 25, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Ho SONG, Min-Woo LEE, Jae Cheol PARK, Yeun Tae KIM, Woo Jae LEE
  • Patent number: 8836895
    Abstract: A display apparatus includes a base substrate, a pixel electrode, a plurality of capsular structures, a common electrode and a plurality of color filters. The base substrate includes a plurality of unit pixel regions. Each of the unit pixel regions has a plurality of sub pixel regions. A pixel electrode is formed in each of the sub pixel regions. A plurality of capsular structures is disposed on the base substrate. Each of the capsular structures is formed in each of the unit pixel regions and having a cavity. A common electrode is formed on the capsular structures. A plurality of color filters is formed on the capsular structures. Each of the color filters is formed in each of the sub pixel regions. An opening ratio of the sub pixel regions and light transmittance are relatively high.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Keun Lee, Yeun-Tae Kim, Hae-Ju Yun, Son-Uk Lee
  • Patent number: 8809865
    Abstract: A display device including a base substrate, a pixel disposed on the base substrate, and a color filter part disposed between the base substrate and the pixel. The color filter part includes a color filter corresponding to the pixel and a black matrix disposed at at least a side of the color filter. The pixel includes a cover layer defining a tunnel-shaped cavity on the base substrate, an image display part disposed in the tunnel-shaped cavity, and first and second pixel electrodes and a common electrode applying an electric field to the image display part. The tunnel-shaped cavity is formed by forming a sacrificial layer and wet-etching the sacrificial layer.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Je Hyeong Park, Jae-Hwa Park, Swae-Hyun Kim, Yeun Tae Kim, Sunghwan Won