Patents by Inventor Yong-Seok Yeo

Yong-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).

  • Patent number: 10679538
    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: Grant
    Filed: February 7, 2018
    Date of Patent: June 9, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Yeo, Yi-Joon Ahn
  • Publication number: 20180165999
    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: February 7, 2018
    Publication date: June 14, 2018
    Inventors: Yong-Seok Yeo, Yi-Joon Ahn
  • Patent number: 9934711
    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: Grant
    Filed: June 24, 2013
    Date of Patent: April 3, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Yeo, Yi-Joon Ahn
  • Patent number: 9425421
    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: Grant
    Filed: March 13, 2013
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yong-Seok Yeo
  • Patent number: 9232571
    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: Grant
    Filed: November 15, 2012
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi-Joon Ahn, Katsumasa Yoshii, Jong-In Baek, Dae-Sung Choi, Yong-Seok Yeo, Ki-Seo Kim
  • Patent number: 9057897
    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: Grant
    Filed: January 23, 2013
    Date of Patent: June 16, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Gee-Bum Kim, Yong-Seok Yeo
  • Patent number: 9053651
    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: Grant
    Filed: June 26, 2013
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Seok Yeo, Kee-Han Uh
  • Patent number: 9041879
    Abstract: A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate opposed to the first substrate, and a second electrode on the second substrate. The second electrode corresponds to the first electrode. The liquid crystal display device also includes a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a plurality of liquid crystal molecules and at least one movement control member. The movement control member in the liquid crystal structure restricts a movement of the liquid crystal molecules.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gee-Bum Kim, Jae-Hyun Kim, Won-Sang Park, Jae-Ik Lim, Yong-Seok Yeo, Jong-In Baek
  • Patent number: 8988642
    Abstract: A liquid crystal display device includes: a first substrate; a first electrode on a first face of the first substrate; a second substrate opposed to the first substrate; a second electrode on a first face of the second substrate, the second electrode corresponding to the first electrode; and a liquid crystal structure between the first substrate and the second substrate, the liquid crystal structure including liquid crystal capsules.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Jae-Hyun Kim, Jong-in Baek, Yong-Seok Yeo, Gee-Bum Kim, Won-Sang Park
  • Patent number: 8975812
    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: Grant
    Filed: September 13, 2012
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Ik Lim, Man-Seob Choi, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo
  • Patent number: 8970530
    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: Grant
    Filed: January 30, 2013
    Date of Patent: March 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-Seok Yeo
  • Publication number: 20150015617
    Abstract: A method for controlling optical quantities of an organic light emitting diode (“OLED”) display includes generating an inverse matrix using an initial setting of the OLED display, calculating a variation between the initial setting and a target setting using the target setting, the initial setting and the inverse matrix, where the target setting is input by a user of the OLED, and controlling optical quantities of the OLED display using the variation.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 15, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yong-Seok YEO, Sang-Min LIM, Gee-Bum KIM
  • 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
  • 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
  • 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
  • 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