Patents by Inventor In Seok Yeo

In Seok Yeo 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: 20140322481
    Abstract: Provided is an inner structure of a vacuum insulator with an assembly reciprocating support to increase an insulation performance, the structure of the vacuum insulator including a top board, a bottom board, and an assembly reciprocating support installed perpendicularly between the top board and the bottom board, the assembly reciprocating support including a solid shaft, a hollow shaft, and a connection part.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Tae-Ho SONG, Seong Wook CHO, Hae-yong JUNG, Jongmin KIM, In-Seok YEO, Bongsu CHOI, Jae Hyug LEE, SeungWook KIM, Wookjin LEE, Shin-Woo JANG
  • Patent number: 8872860
    Abstract: A method for driving a display device includes cumulatively applying a reset pulse of a predetermined level to a first electrode and applying a common voltage to a second electrode opposed to the first electrode to form an initial state of a plurality of cholesteric liquid crystal capsules included in a liquid crystal layer between the first electrode and the second electrode. The method also includes cumulatively applying a data pulse of a predetermined level to the first electrode to display a grayscale.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Won-Sang Park, Jong-In Baek, Gee-Bum Kim, Yong-Seok Yeo
  • Patent number: 8871075
    Abstract: A method of forming a metal pattern includes forming a precursor layer including a metal precursor on a substrate, irradiating a light on the precursor layer to form a metal seed layer having a predetermined pattern, and electroless-plating the metal seed layer to form a metal pattern layer.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Hoon Byeon, In-Seok Yeo, Jae-Hyuk Chang, Seung-Jun Lee, Hyun-Seok Kim, Sung-Hee Lee
  • Patent number: 8865515
    Abstract: A method for fabricating a graphene thin film by reducing graphene oxide and a method for fabricating an optoelectronic device using the same are provided. The method for fabricating a graphene thin film includes preparing graphene oxide; preparing graphene through reducing the graphene oxide by a sulfonyl hydrazide-based reducing agent; preparing a graphene dispersed solution by dispersing the graphene into an organic solvent; and fabricating a graphene thin film by applying the graphene dispersed solution. The sulfonyl hydrazide-based reducing agent may be a compound having a sulfonyl hydrazide substituent of Chemical Formula 1 in the present disclosure in which A may be any one in Chemical Formula 2 in the present disclosure.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: October 21, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Seok In Na, Dong Yu Kim, Hye Young Koo, Jin Mun Yun, Jun Seok Yeo, Jun Kyung Kim
  • Publication number: 20140217369
    Abstract: An organic light-emitting transistor comprising a first electrode, a first semiconductor layer disposed on the first electrode, a second electrode disposed on the first semiconductor layer, a second semiconductor layer disposed on the second electrode, one of the first and second semiconductor layers having an organic semiconductor which emits light in response to a driving current that flows, and a third electrode disposed on the second semiconductor layer.
    Type: Application
    Filed: July 9, 2013
    Publication date: August 7, 2014
    Inventors: Dae Sung CHOI, Ki Seo KIM, Yong Seok YEO
  • Patent number: 8736317
    Abstract: A frequency includes a first edge detection unit configured to generate a first count signal responsive to detecting first edges of an input signal and a second edge detection unit configured to generate a second count signal responsive to detecting the first edges of the input signal in a first operation mode and to generate the second count signal responsive to detecting second edges of the input signal in a second operation mode. One of the first and second edges is a rising edge and the other of the first and second edges is a falling edge. A pulse triggered buffer unit generates an output signal responsive to the first and second count signals. The output signal is divided by a target division ratio with respect to the input signal that is an odd number division ratio in one mode and an even number division ratio in the other mode.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: May 27, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwan-Seok Yeo, Ji-Hyun Kim
  • Publication number: 20140118678
    Abstract: A display device including a first substrate; a display element layer on the first substrate; a second substrate on the display element layer; and a spacer layer between the first substrate and the second substrate.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 1, 2014
    Inventor: Yong-Seok YEO
  • Patent number: 8704969
    Abstract: A display device includes a main display unit and a liquid crystal display cover coupled with the main display unit. The liquid crystal display cover is movable between open and closed positions with respect to the main display unit. The liquid crystal display cover includes a lower substrate, an upper substrate, and a liquid crystal layer. The lower substrate includes a plurality of first pixels thereon. The upper substrate faces the lower substrate and has a first common electrode thereon. The liquid crystal layer is between the lower substrate and the upper substrate.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hyun Kim, Jae-Ik Lim, Yong-Seok Yeo
  • Patent number: 8673653
    Abstract: Provided is a novel method for amplifying mass spectrometric signals. A novel method for detecting signals of a target molecule includes: allowing a sample, which comprises a target molecule, to contact a gold particle having a surface modified to selectively bind the target molecule, allowing a low molecular weight molecule engrafted to the gold particle generate mass spectrometric signals after the interaction, e.g., binding, between the gold particle and the target molecule, and amplifying the mass spectrometric signals to generate much mass spectrometric signals of the low molecular weight molecule even when trace amounts of the target molecule are present. An assay system using the method and the gold particle prepared in the method are provided. The method amplifies signals of the target molecule without pretreatment of a sample, making it possible to measure the target molecule simply and precisely.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: March 18, 2014
    Assignee: Diatech Korea Co., Ltd.
    Inventors: Hyung-Soon Park, Sang-Wan So, Woon-Seok Yeo, Soo-Jae Lee, Jung-Rok Lee, Ju-Hee o Lee, Kwang-Pyo Kim
  • Publication number: 20140062910
    Abstract: A device, such as a display device, including a plurality of vibration plates oscillating in response to one or more oscillation signals. While at least one of first vibration plates among the plurality of vibration plates are oscillating, effective oscillation does not occur in at least one of second vibration plates among the plurality of vibration plates.
    Type: Application
    Filed: January 30, 2013
    Publication date: March 6, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yong-Seok YEO
  • Publication number: 20140015402
    Abstract: A flexible display device includes a flexible display panel, a plurality of supports on a first surface of the flexible display panel, the plurality of supports being spaced apart from each other, and an actuator on the first surface of the flexible display panel, the actuator being between the supports. The actuator includes an electroactive polymer layer, and a first electrode layer and a second electrode layer that are respectively arranged on an upper surface and a lower surface of the electroactive polymer layer, and the actuator having a property such that when a voltage is applied to the first electrode layer and the second electrode layer, an area of the electroactive polymer layer is changed.
    Type: Application
    Filed: November 15, 2012
    Publication date: January 16, 2014
    Inventors: Yi-Joon AHN, Katsumasa YOSHII, Jong-In BAEK, Dae-Sung CHOI, Yong-Seok YEO, Ki-Seo KIM
  • Publication number: 20140002427
    Abstract: A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.
    Type: Application
    Filed: June 24, 2013
    Publication date: January 2, 2014
    Inventors: Yong-Seok Yeo, Yi-Joon Ahn
  • Publication number: 20130342772
    Abstract: A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate facing the first substrate, a second electrode on the second substrate facing the first electrode, and a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a polymer network and liquid crystal molecules. The liquid crystal display device operates in a transmissive mode when an electric field is not generated between the first and the second electrodes, and operates in a scattering mode when the electric field is generated between the first and the second electrodes.
    Type: Application
    Filed: January 23, 2013
    Publication date: December 26, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Gee-Bum Kim, Yong-Seok Yeo
  • Publication number: 20130286462
    Abstract: Provided is a flexible display device including a display body having flexibility; an actuator for changing and driving the display body; and an initial shape forming substrate for maintaining an initial state of the display body before the display body is changed and driven. The flexible display device allows a user to exactly control a change state of the flexible display device by driving the actuator and to decrease power consumption for changing and driving the flexible display device. Thus, by using the flexible display device, user convenience can be improved and the flexible display device can be driven with low power consumption.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Yong-Seok YEO, Kee-Han UH UH
  • Patent number: 8570467
    Abstract: A transflective liquid crystal display (LCD) includes: a first substrate formed with a thin film transistor and a pixel electrode connected to the thin film transistor; a second substrate formed with a common electrode and a color filter and facing the first substrate; a liquid crystal layer formed between the first substrate and the second substrate; a first polarizing plate disposed at one side of the first substrate that does not face the second substrate; a second polarizing plate disposed at one side of the second substrate that does not face the first substrate; a cholesteric film formed on the first substrate; and a backlight unit disposed at one side of the first polarizing plate that does not face the first substrate.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gee-Bum Kim, Won-Sang Park, Jae-Hyun Kim, Jae-Ik Lim, Jong-In Baek, Yong-Seok Yeo
  • Publication number: 20130265631
    Abstract: A flexible display apparatus that has improved portability and convenience of usage. The flexible display apparatus includes a display main body that is flexible; and a bendable driving film coupled to the display main body, and that bends when an electric current flows. The flexible display apparatus may be flexibly transformed to be stored when it is carried, and then, may be unfolded to be flat through a simple manipulation when it is in use for displaying an image. Thus, the convenience of carrying and using the flexible display apparatus may be increased.
    Type: Application
    Filed: August 31, 2012
    Publication date: October 10, 2013
    Inventors: Yi-Joon Ahn, Jae-Ik Lim, Man-Seob Choi, Gee-Bum Kim, Yong-Seok Yeo
  • Patent number: 8535753
    Abstract: Methods of forming carbon nanotubes include forming a catalytic metal layer on a sidewall of an electrically conductive region, such as a metal or metal nitride pattern. A plurality of carbon nanotubes are grown from the catalytic metal layer. These carbon nanotubes can be grown from a sidewall of the catalytic metal layer. The plurality of carbon nanotubes are then exposed to an organic solvent. This step of exposing the carbon nanotubes to the organic solvent may be preceded by a step of applying centrifugal forces to the plurality of carbon nanotubes. Alternatively, the exposing step may include applying a centrifugal force to the plurality of carbon nanotubes while simultaneously exposing the plurality of carbon nanotubes to an organic solvent.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xianfeng Wang, Hong-Sik Yoon, In-Seok Yeo
  • Patent number: 8531628
    Abstract: A display device comprises: a first substrate; a second substrate opposite the first substrate; an electrode unit formed on one or both of the first substrate and the second substrate, and configured to form an electric field between the first substrate and the second substrate; and a polymer dispersed liquid crystal layer located so as to correspond to the electric field formed between the first substrate and the second substrate, and having a reflector configured to reflect light.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Yeo, Jae-Hyun Kim, Jae-Ik Lim, Gee-Bum Kim, Jong-in Baek
  • Patent number: 8519385
    Abstract: An organic light emitting diode (OLED) display according to an exemplary embodiment of the invention includes: a display substrate including a plurality of pixel areas; a tilt layer formed on the display substrate of each of the plurality of pixel areas, and having a tilt angle with respect to the display substrate; a first electrode formed on the tilt layer; an organic emission layer formed on the first electrode; a second electrode formed on the organic emission layer; an encapsulation substrate disposed on the second electrode and in parallel with the display substrate; and a prism sheet formed on the encapsulation substrate and having a plurality of prisms.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo, Man-Seob Choi
  • Publication number: 20130140587
    Abstract: A polarization structure for a display device is disclosed. In one embodiment, the structure includes a retardation layer, a first polarizing layer, a first uniaxial optical compensation layer, a second polarizing layer and a second uniaxial optical compensation layer. The retardation layer may be configured to create a phase difference between two polarization components of an incident light. The first polarizing layer may be disposed on the retardation layer. The first uniaxial optical compensation layer may be disposed on the first polarizing layer. The second polarizing layer may be disposed on the first uniaxial optical compensation layer. The second uniaxial optical compensation layer may be disposed between the first polarizing layer and the first uniaxial optical compensation layer or between the first polarizing layer and the second polarizing layer.
    Type: Application
    Filed: September 13, 2012
    Publication date: June 6, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-IK Lim, Man-Seob Choi, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo