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).

  • Publication number: 20140204300
    Abstract: The present invention relates to a display device and a manufacturing method thereof, wherein a spoilage layer generated in a manufacturing process is removed, and a manufacturing method of a display device according to an exemplary embodiment of the present invention includes: forming a thin film transistor on a substrate including a plurality of pixel areas; forming a pixel electrode connected to the thin film transistor in the pixel area; forming a sacrificial layer on the pixel electrode; forming a barrier layer on the sacrificial layer; forming a common electrode on the barrier layer; forming a roof layer on the common electrode; patterning the barrier layer, the common electrode, and the roof layer to exposed a portion of the sacrificial layer thereby forming an injection hole; removing the sacrificial layer to form a microcavity for a plurality of pixel areas; removing the barrier layer.
    Type: Application
    Filed: August 7, 2013
    Publication date: July 24, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hong Sick PARK, Seon-Il KIM, Min Ho MOON, Hyang-Shik KONG, Yeun Tae KIM, Chang Oh JEONG
  • Publication number: 20140203301
    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: Application
    Filed: July 18, 2013
    Publication date: July 24, 2014
    Inventors: YEUN-TAE KIM, Hee-Keun Lee, Jaekeun Lim
  • Publication number: 20140198290
    Abstract: The present invention relates to a display device and a method of manufacturing the display device. The display device according to an exemplary embodiment of the present invention includes a substrate. A pixel electrode is formed on the substrate. A roof layer is formed on the pixel electrode. A first micro-cavity and a second micro-cavity are disposed between the pixel electrode and the roof layer. A liquid crystal fills the first and second micro-cavities. The first and second micro-cavities are connected to each other by a path. The path penetrates the roof layer.
    Type: Application
    Filed: September 25, 2013
    Publication date: July 17, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Woo Lim, Hee-Keun Lee, Hoon Kang, Sung Ju Kim, Yeun Tae Kim, Yu Deok Seo, Koichi Sugitani, Cha-Dong Kim
  • Publication number: 20140198286
    Abstract: A display panel with microcavities each having ends of asymmetric cross-sectional area. An exemplary display panel has a substrate; a pixel electrode formed on the substrate; a first black matrix and a second black matrix each disposed on the substrate; and a supporting member disposed on the substrate over the pixel electrode and the black matrix, the supporting member shaped so as to form a microcavity between the pixel electrode and the supporting member, the microcavity having an upper surface proximate to the supporting member and a lower surface opposite the upper surface. The microcavity has one end positioned over the first black matrix, and another end opposite the first end and positioned over the second black matrix; the lower surface of the microcavity has first and second channels disposed therein, the first channel positioned over the first black matrix, and the second channel positioned over the second black matrix.
    Type: Application
    Filed: August 8, 2013
    Publication date: July 17, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee-Keun LEE, Jung Wook LEE, Yeun Tae KIM, Hae Ju YUN
  • Publication number: 20140152948
    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: July 2, 2013
    Publication date: June 5, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kyung Tae CHAE, Sung Hwan WON, Yeun Tae KIM, Won Tae KIM, Seon Uk LEE
  • Publication number: 20140146278
    Abstract: A display panel with microcavities each having ends of asymmetric cross-sectional area. An exemplary display panel has a substrate; an electrode disposed on the substrate; and a supporting member disposed on the electrode. The supporting member is shaped to form a cavity between the supporting member and the electrode. The cavity has a first opening at one end of the supporting member and a second opening at an opposite end of the supporting member, the first opening being positioned over the electrode. A cross-sectional area of the first opening is smaller than a cross-sectional area of the second opening.
    Type: Application
    Filed: August 8, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee-Keun LEE, Hae Ju YUN, Jung Wook LEE, Seon Uk LEE, Dong Hwan KIM, Sung Jun KIM, Yeun Tae KIM, Hyoung Sub LEE, Sung Woo CHO, Tae Woon CHA, Sang Gun CHOI
  • Publication number: 20140117385
    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: Application
    Filed: March 13, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Je Hyeong PARK, Jae-Hwa Park, Swae-Hyun Kim, Yeun Tae Kim, Sunghwan Won
  • Publication number: 20140055440
    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: Application
    Filed: February 12, 2013
    Publication date: February 27, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyoung CHO, Sunhwa LEE, MEEHYE JUNG, YEUN TAE KIM, SUNGHWAN WON, CHONGCHUL CHAI
  • Publication number: 20130313582
    Abstract: A monolithically integrated display panel is formed to include a substrate, a first electrode disposed on the substrate, a partitioning member disposed above the first electrode where the partitioning member defines a substantially containerizing volume for a to-be-introduced and then later selectively removed sacrificial member, a light attribute controlling material disposed in the containerizing volume and replacing the selectively removed sacrificial member, where an upper width of the light attribute controlling material is substantially different in dimension than a lower width of the light attribute controlling material, and a second electrode disposed above the light attribute controlling material and insulated from the first electrode.
    Type: Application
    Filed: November 2, 2012
    Publication date: November 28, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Joon CHO, Joon-Chul GOH, Yeun-Tae KIM, Nak-Cho CHOI
  • Publication number: 20130308071
    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: Application
    Filed: February 22, 2013
    Publication date: November 21, 2013
    Applicant: 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
  • Publication number: 20130293798
    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: November 6, 2012
    Publication date: November 7, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee Keun Lee, Yeun Tae Kim, Nam Seok Roh, Hae Ju Yun
  • Publication number: 20130293799
    Abstract: A display device includes: a substrate including a plurality of pixel areas; a thin film transistor on the substrate; a pixel electrode connected to the thin film transistor; an roof layer connected between pixel areas adjacent in a first direction and separated from the pixel electrode; a column protruded from the roof layer in a boundary portion of the pixel areas; a space between the pixel electrode and the roof layer, the roof layer partially overlapping an upper inner wall and a first side inner wall of the space and exposing a second side inner wall of the space; a liquid crystal in the space.
    Type: Application
    Filed: November 17, 2012
    Publication date: November 7, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon Uk LEE, Yeun Tae KIM, Seong Gyu KWON, Nam Seok ROH
  • Publication number: 20130286312
    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: Application
    Filed: October 15, 2012
    Publication date: October 31, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nak Cho CHOI, Yeun Tae KIM
  • Publication number: 20130250220
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor on the substrate; a pixel electrode which is connected to a terminal of the thin film transistor; a microcavity layer on the pixel electrode and including an injection hole through which material is provided to the microcavity layer; a supporting layer on the microcavity layer; and a capping layer on the supporting layer. The capping layer covers the injection hole, and the supporting layer includes silicon oxycarbide (SiOC).
    Type: Application
    Filed: August 29, 2012
    Publication date: September 26, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Ok KIM, Yeun Tae KIM, Hyang-Shik KONG, Jae Sul AN, Hyeong Suk YOO, Chang Oh JEONG
  • Publication number: 20130182203
    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: Application
    Filed: September 12, 2012
    Publication date: July 18, 2013
    Inventors: HEE-KEUN LEE, Yeun-Tae Kim, Hae-Ju Yun, Son-Uk Lee
  • Publication number: 20130033531
    Abstract: A display apparatus includes an image data comparator which receives first, second and third color image data, extracts first, second and third image data from the first, second and third color image date by comparing gray scale values of the first, second and third color image date such that each of grayscale values of the second and third image data is greater than or equal to a gray scale value of the first image data, and compares the gray scale value of the first image data with a predetermined gray scale value, a driving circuit which generates a gray scale signal based on a result of the comparison and generates first and second color signals based on the first, second or third image data, and a pixel including a first sub-pixel which receives the gray scale signal, second and third sub-pixels which receive the first and second color signals, respectively.
    Type: Application
    Filed: April 6, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: SANGIL KIM, Jang-Kyum KIM, Myung-Eun KIM, NAMSEOK ROH, Gilhwan YEO, YEUN TAE KIM, KyoungHo LIM
  • Publication number: 20130021661
    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: Application
    Filed: May 30, 2012
    Publication date: January 24, 2013
    Inventors: Seung-Jin Baek, Sangil Kim, Yeun Tae Kim, Hyeon Gu Cho
  • Publication number: 20120062448
    Abstract: A display apparatus includes a plurality of pixel units and each pixel unit includes a substrate, a first electrode, a second electrode, an image display part and a protective layer. The first electrode is formed on the substrate. The second electrode is formed over the first electrode while interposing a first insulating layer therebetween to define a TSC (tunnel-shaped cavity) extending in a first direction between the first and second electrodes. The image display part is provided in the TSC to display an image according to an electric field generated by the first and second electrodes. The protective layer covers the second electrode and seals the TSC. The display apparatus having the above structure is manufactured by forming the first electrode, a sacrificial layer and the second electrode and forming the image display part by removing the sacrificial layer.
    Type: Application
    Filed: April 18, 2011
    Publication date: March 15, 2012
    Inventors: Yeun Tae KIM, Hee-Keun LEE, Pilsook KWON, Sangil KIM, Nakcho CHOI
  • Publication number: 20110221098
    Abstract: A method of manufacturing an alignment substrate includes preparing a first substrate on which an alignment film aligned in a first alignment direction is formed; forming a plurality of fluoro-polymer patterns on the first substrate; changing the alignment direction of regions of the alignment film on which the fluoro-polymer patterns are not formed; and removing the fluoro-polymer patterns by using a fluoro-solvent.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicants: SAMSUNG MOBILE DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Won-Sang PARK, Kee-Han UH, Sin-Doo LEE, Jun-Hee NA, Yeun-Tae KIM, Kyung-Mo KOO
  • Patent number: 7978289
    Abstract: A flexible display device may include a first panel including a multifunction film, a second panel arranged facing the first panel with a gap therebetween, the second panel including a substrate and electrodes formed on the substrate, and an electro-optical active layer disposed in the gap between the first panel and the second panel. The multifunction film may perform at least two of the following functions: aligning molecules in the electro-optical active layer, protecting the electro-optical active layer, keeping the thickness of the electro-optical active layer uniform, and serving as a flexible substrate.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: July 12, 2011
    Assignees: Samsung Mobile Display Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sin-Doo Lee, Yeun-Tae Kim