Patents by Inventor Hwan-Soo Lee

Hwan-Soo Lee 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: 7876494
    Abstract: There is provided an electronic paper display device and a method of manufacturing the same. The electronic paper display device includes first and second electrodes opposing each other, a plurality of rotary bodies disposed between the first and second electrodes and having electrical and optical anisotropy, elastomer matrix blocks each surrounding at least one of the plurality of rotary bodies and spaced apart from each other, and an optical adhesive formed between the elastomer matrix blocks. The electronic paper display device achieves a high contrast ratio and a relative low driving voltage. Also, the use of the optical adhesive facilitates the adhesion of the first and second electrodes, and blocks the vaporization of dielectric liquid filing a cavity, thereby ensuring high reliability.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: January 25, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Moon Lee, Hwan-Soo Lee, Young Woo Lee
  • Publication number: 20110013258
    Abstract: The present invention relates to a manufacturing method of an electronic paper display device and an electronic paper display device manufactured therefrom. The manufacturing method of the electronic paper display device may include forming a first auxiliary first dielectric layer on a first substrate; disposing electronic balls on the first auxiliary first dielectric layer; forming a second auxiliary first dielectric layer that fixes the electronic balls by curing the first auxiliary first dielectric layer; forming an auxiliary second dielectric layer on the second auxiliary first dielectric layer including the electronic balls; forming first and second dielectric layers by curing the second auxiliary first dielectric layer and the auxiliary second dielectric layer; and bonding the first substrate including the second dielectric layer to a second substrate.
    Type: Application
    Filed: December 29, 2009
    Publication date: January 20, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hwan-Soo Lee, Yongsoo Oh, Sang Moon Lee, Hye Yeon Cha, Jeong Bok Kwak
  • Publication number: 20100321346
    Abstract: The present invention relates to an electronic paper display device and a method of driving the same. The electronic paper display device may include: an electronic paper panel that displays an image; and a vibration member that generates vibration of the electronic paper panel.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 23, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung Soo Chae, Hwan Soo Lee, Hye Yeon Cha, Hee Bum Lee
  • Publication number: 20100307575
    Abstract: Disclosed is a solar cell and a manufacturing method thereof. The solar cell includes: a substrate; an adhesive electrode disposed on the substrate; a first electrode adhered to the substrate by the adhesive electrode; a light absorption layer disposed on the first electrode; a window layer disposed on the light absorption layer; and a second electrode disposed on the window layer.
    Type: Application
    Filed: July 29, 2009
    Publication date: December 9, 2010
    Inventors: Boum Seock KIM, Hwan Soo Lee, Sang Jin Kim
  • Publication number: 20100295768
    Abstract: The present invention relates to a paper display device and a manufacturing method thereof. The electronic paper display device includes: a first electrode; a first partition wall which is disposed on the first electrode, and defines a number of cell regions; a second partition wall which faces the first partition wall, and defines the cell regions together with the first partition wall; a substrate including a second electrode, wherein the second electrode is disposed on the second partition wall, and faces the first electrode; dielectric fluid filled in at least each of the cell regions; and twist balls individually floating within the dielectric fluid of each of the cell regions.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 25, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jeong Bok Kwak, Hwan Soo Lee, Hye Yeon Cha, Sang Moon Lee
  • Publication number: 20100271687
    Abstract: There are provided a display element and electronic paper. The display element includes a structure having a cylindrical shape and including a void inside, and at least two display regions formed on a side face of the structure and colored with different colors. The use of the display element for electronic paper can improve a response rate while lowering driving voltage, and can improve a contrast ratio by increasing a packing fraction.
    Type: Application
    Filed: August 27, 2009
    Publication date: October 28, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD
    Inventors: Sang Moon Lee, Yongsoo Oh, Hwan-Soo Lee, Jeong Bok Kwak, Sung Eun Kim
  • Publication number: 20100255344
    Abstract: There is provided a method of manufacturing a thin film device and a thin film device manufactured using the same. The method includes forming a sacrificial layer using a first oxide having a perovskite structure on a preliminary substrate; forming an electrode layer using a second oxide having a perovskite structure on the sacrificial layer; forming a thin film laminate on the electrode layer; bonding a permanent substrate onto the thin film laminate; decomposing the sacrificial layer by irradiating a laser onto the preliminary substrate; and separating the preliminary substrate from the electrode layer. During a laser lift-off process, degradation of properties caused by oxygen diffusion can be prevented. Since the electrode layer has thermal conductivity lower than an existing metal electrode, heat emission can be considerably reduced and the sacrificial layer can be easily decomposed by heat accumulation. Therefore, a thin film device having excellent properties can be manufactured.
    Type: Application
    Filed: August 21, 2009
    Publication date: October 7, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Boum Seock Kim, Yongsoo Oh, Sang Jin Kim, Hwan-Soo Lee
  • Publication number: 20100151627
    Abstract: A method for fabricating a thin film device includes the step of forming a sacrificial layer on a first substrate. A portion other than a region of the sacrificial layer is selectively removed. A material film is formed on the sacrificial layer to be connected to the first substrate via the selectively removed region. The material film portion filled in the selectively removed region is provided as an anchor. A thin film lamination is formed on the material film. The desired thin film device is formed by using a selective etching process. After removing the sacrificial layer, the thin film device floats over the first substrate with being supported by the anchor. A support body is temporarily attached on the thin film lamination. The thin film device is transferred to the support body onto a second substrate.
    Type: Application
    Filed: July 14, 2009
    Publication date: June 17, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Jin KIM, YongSoo OH, Hwan-Soo LEE
  • Publication number: 20100120232
    Abstract: Provided is a method of fabricating a thin film device. A sacrifice layer is formed on a first substrate. A thin film laminated body is formed on the sacrifice layer. A separation groove exposing the sacrifice layer is formed to divide the thin film laminated body into at least one thin film device. The sacrifice layer is partially removed using a dry etching process. After the partial removal of the sacrifice layer, a remaining sacrifice layer region maintains the thin film device on the first substrate. A supporting structure is temporarily joined to the thin film device. The thin film device joined to the supporting structure is separated from the first substrate. Then, the remaining sacrifice layer is removed. The thin film device joined to the supporting structure is joined to a second substrate. Finally, the supporting structure is separated from the thin film device.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 13, 2010
    Inventors: Sang Jin KIM, Yongsoo Oh, Hwan-Soo Lee
  • Publication number: 20100117951
    Abstract: An electrophoretic display device includes: a transparent substrate positioned at a display side and having a transparent front electrode; a wiring substrate disposed to face the transparent substrate and having a field applying unit; a spacer disposed between the transparent substrate and the wiring substrate and having a plurality of accommodating holes with upper and lower portions open; and a plurality of microcapsules respectively positioned in the plurality of accommodating holes and including a dispersion solvent encapsulated with a plurality of charged particles contained therein, wherein the accommodating holes comprise upper holes with a width for receiving the microcapsules and lower holes allowing the microcapsules to be mounted thereon.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 13, 2010
    Inventors: Sang Jin KIM, Yongsoo Oh, Hwan-Soo Lee, Jeong Bok Kwak, Sang Moon Lee
  • Publication number: 20100051191
    Abstract: A method of manufacturing a thin film device according to an aspect of the invention may include: preparing a substrate on which a sacrificial layer and a thin film to be transferred are sequentially formed; temporarily bonding the thin film to a circumferential surface of the transfer roll, and simultaneously removing the sacrificial layer to separate the thin film from the substrate at a first position of a transfer roll that is rolling; and transferring the thin film onto a sheet by running the sheet so that a surface of the sheet is bonded to the thin film temporarily bonded to the circumferential surface of the transfer roll. The substrate may be a transparent substrate.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hwan-Soo LEE, Yongsoo Oh
  • Publication number: 20100051178
    Abstract: A method of manufacturing a thin film device according to an aspect of the invention may include: forming a sacrificial layer on a first substrate; forming a thin film on the sacrificial layer, the thin film being an object of transfer; temporarily bonding a support structure to the thin film; removing the sacrificial layer to separate the thin film from the first substrate; bonding the thin film, temporarily bonded to the support structure, to a second substrate; and separating the support structure from the thin film.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hwan-Soo LEE, Yongsoo OH
  • Publication number: 20100051172
    Abstract: A method for manufacturing a ceramic green sheet includes providing a stamp having an imprinting surface on which a raised structure corresponding to a circuit pattern is formed, imprinting the stamp on the ceramic green sheet to form a depressed pattern in the ceramic green sheet, the depressed pattern being transferred from the raised structure, curing the ceramic green sheet with the stamp imprinted on the ceramic green sheet, separating the stamp from the ceramic green sheet, and providing the depressed pattern of the ceramic green sheet with the conductive material.
    Type: Application
    Filed: March 24, 2009
    Publication date: March 4, 2010
    Inventors: Yong Suk Kim, Yong Soo Oh, Byeung Gyu Chang, Yong Seok Choi, Hwan Soo Lee, Sang Moon Lee, Taek Jung Lee
  • Publication number: 20100047528
    Abstract: An electronic paper display device and a method of manufacturing the electronic paper display device are disclosed. The method can include forming a plurality of relievo patterns on a lower board, in which the relievo patterns are formed to be independent and separated from one another, disposing a display unit in between the plurality of relievo patterns, and attaching an upper board on the plurality of relievo patterns such that the display unit is covered. In accordance with an embodiment of the present invention, the method can improve the freedom of disposing the display units by allowing partition walls to form only at areas to fix the display units.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventors: Hwan-Soo Lee, Yongsoo Oh, Sang-Moon Lee, Jeong-Bok Kwak
  • Publication number: 20100033805
    Abstract: An electronic paper display device and a method of manufacturing the electronic paper display device are disclosed. The method in accordance with an embodiment of the present invention includes forming a plurality of partition walls on a lower board, in which the partition walls partition the lower board into cells, disposing a display unit in the cell, and attaching an upper board on an upper part of the plurality of partition walls such that the display unit is covered. This method can adjust a distance between display units and the shape of the display units, and the quantity of disposed display units can be made uniform, whereby the visual quality of the display can be improved by removing spots formed on a screen.
    Type: Application
    Filed: August 11, 2009
    Publication date: February 11, 2010
    Inventors: Hwan-Soo Lee, Yongsoo Oh, Sang-Moon Lee, Jeong-Bok Kwak