Patents by Inventor Dong-Wook Choi

Dong-Wook Choi 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: 20210313536
    Abstract: An organic light-emitting display device includes: a plurality of pattern electrodes; a hole-transporting layer disposed on the plurality of pattern electrodes; a plurality of emission layers disposed on the hole-transporting layer and overlapping the plurality of pattern electrodes, respectively; a common electrode disposed on the emission layers; and a first auxiliary layer disposed between a first one of the pattern electrodes and a first one of the emission layers, wherein the first emission layer forms an interface with the hole-transporting layer or the first auxiliary layer, the interface having a hole barrier equal to or less than about 0.1 eV, wherein the hole-transporting layer and the first auxiliary layer have a hole mobility equal to or less than about 1.0×10?3 cm2/V·s.
    Type: Application
    Filed: March 10, 2021
    Publication date: October 7, 2021
    Inventors: Jin Young CHOI, Sang Hoon YIM, Dong Hoon KIM, Jin Sook BANG, Jin Wook JEONG, Eun Jeong HONG
  • Publication number: 20210291415
    Abstract: Provided are a vehicular interior material manufacturing method and a vehicular interior material, the method comprising the steps of: forming a molded article including a surface having an uneven shape; and forming a printing layer on the surface of the molded article by using a predetermined blanket.
    Type: Application
    Filed: September 27, 2017
    Publication date: September 23, 2021
    Inventors: Jae-Youl JOUNG, Yeon-Wook CHOI, Yong-Gu KWON, Dong-Hwan CHOI
  • Publication number: 20210201746
    Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver configured to receive input data, and to drive the display panel based on the input data. The panel driver includes a partial still image detector configured to detect a still image data portion in the input data by determining whether at least a portion of the input data represents a still image, and a command decoder configured to extract command data from the input data by decoding the still image data portion in which the command data are encoded.
    Type: Application
    Filed: July 23, 2020
    Publication date: July 1, 2021
    Inventors: Hae-Kwan SEO, Dong-Wook CHOI, Se Ja Chul HWANG
  • Patent number: 9913393
    Abstract: An energy storage system is provided. The system includes an energy storage device including at least one battery module, a power adjuster that adjusts power of the energy storage device, a controller that controls the energy storage device and the power adjuster, a rack that accommodates the energy storage device, the power adjuster and the controller, the rack including at least one stationary coupler fixed to a movable unit and at least one support device that supports the energy storage system against the moveable unit.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: March 6, 2018
    Assignee: LG CNS CO., LTD.
    Inventors: Dong Wook Choi, Dong Chul Ko, Sang Hyub Kim, Tae Hyoung Ryu, Byoung Seung Lee
  • Publication number: 20180059404
    Abstract: An electronic device and a method of controlling light transmittance of the same. The electronic device includes: a light source which provides light; and a variable light control member which adjusts transmittance of the provided light. The variable light control member includes: a base substrate including a plurality of unit areas; a thin-film transistor (TFT) which is disposed on the base substrate; and a deformable lens layer having lens portion disposed on the base substrate in association with at least one of the unit areas, the lens portion being deformable by a control signal of the TFT.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 1, 2018
    Inventors: Jong Ho CHONG, Dong Wook CHOI
  • Patent number: 9829701
    Abstract: A flexible display device includes a flexible display panel, a correction panel, and a flexible printed circuit board. The correction panel includes a shape memory polymer layer and a driver. The shape memory polymer layer includes microlenses and the driver control the microlenses. The flexible printed circuit board connects the driver to a driving circuit board.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: November 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Ho Chong, Dong-wook Choi
  • Patent number: 9804637
    Abstract: A portable display device including a display unit, the display unit including a light-emitting surface that displays an image and a non-light-emitting surface opposite to the light-emitting surface; a drive unit, the drive unit controlling the display unit; and a flexible film, the flexible film electrically connecting the display unit and the drive unit, wherein the drive unit includes a first surface on which the flexible film is disposed, and a second surface opposite to the first surface, and wherein the portable display device is embodied in a first folding mode in which the flexible film is bent in such a way that the non-light-emitting surface and the second surface face each other, or a second folding mode in which the flexible film is bent in such a way that the light-emitting surface and the first surface face each other.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-wook Choi, Minjae Kim, Sun A Yang, Jongho Chong
  • Patent number: 9772656
    Abstract: A flexible display device includes a flexible display panel to display an image, a support panel including a shape memory polymer layer and a driver to control a shape of the shape memory polymer layer, and a flexible PCB connecting the driver to a driving circuit board. The support panel is coupled to a rear side of the display panel.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: September 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Ho Chong, Dong-Wook Choi
  • Publication number: 20160216819
    Abstract: A touch-enabled display device includes a display panel for displaying an image, a touch sensitive region being disposed at a first surface of the display panel, a window on the display panel and covering the touch sensitive region, and a protecting layer on the window, the protecting layer including a shape memory polymer layer.
    Type: Application
    Filed: August 4, 2015
    Publication date: July 28, 2016
    Inventors: Dong-Wook CHOI, Jong Ho CHONG
  • Publication number: 20160209877
    Abstract: A flexible display device includes a flexible display panel to display an image, a support panel including a shape memory polymer layer and a driver to control a shape of the shape memory polymer layer, and a flexible PCB connecting the driver to a driving circuit board. The support panel is coupled to a rear side of the display panel.
    Type: Application
    Filed: September 21, 2015
    Publication date: July 21, 2016
    Inventors: Jong Ho CHONG, Dong-Wook CHOI
  • Publication number: 20160202476
    Abstract: A flexible display device includes a flexible display panel, a correction panel, and a flexible printed circuit board. The correction panel includes a shape memory polymer layer and a driver. The shape memory polymer layer includes microlenses and the driver control the microlenses. The flexible printed circuit board connects the driver to a driving circuit board.
    Type: Application
    Filed: September 3, 2015
    Publication date: July 14, 2016
    Inventors: Jong Ho CHONG, Dong-wook CHOI
  • Patent number: 9317067
    Abstract: A display device may include a foldable display member. The foldable display member may include a first portion, a second portion, and a bendable portion. The first portion may be connected through the bendable portion to the second portion. The display device may further include a first controllable member that may overlap the bendable portion. The display device may further include a control unit connected to the first controllable member and configured to provide a first signal to control a size of the first controllable member according to a magnitude of an angle between the first portion and the second portion.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Wook Choi, Jeong-Eun Seo, Hyun-Ah Suh, Young-Jin Lee
  • Patent number: 9298221
    Abstract: A method of displaying folding information includes evaluating a folded state of a foldable display apparatus, measuring a folding accumulation time that indicates an amount of time that the folded state is maintained, determining the folding information based on the folding accumulation time, and displaying the folding information on a display panel of the foldable display apparatus.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Wook Choi, Byeong-Hwa Choi, Sung-Su Hong
  • Publication number: 20160077328
    Abstract: Provided are an electronic device and a method of controlling light transmittance of the same. The electronic device includes: a light source which provides light; and a variable light control member which adjusts transmittance of the provided light. The variable light control member includes: a base substrate including a plurality of unit areas; a thin-film transistor (TFT) which is disposed on the base substrate; and a deformable lens layer having lens portion disposed on the base substrate in association with at least one of the unit areas, the lens portion being deformable by a control signal of the TFT.
    Type: Application
    Filed: March 31, 2015
    Publication date: March 17, 2016
    Inventors: Jong Ho CHONG, Dong Wook CHOI
  • Publication number: 20160048168
    Abstract: A portable display device including a display unit, the display unit including a light-emitting surface that displays an image and a non-light-emitting surface opposite to the light-emitting surface; a drive unit, the drive unit controlling the display unit; and a flexible film, the flexible film electrically connecting the display unit and the drive unit, wherein the drive unit includes a first surface on which the flexible film is disposed, and a second surface opposite to the first surface, and wherein the portable display device is embodied in a first folding mode in which the flexible film is bent in such a way that the non-light-emitting surface and the second surface face each other, or a second folding mode in which the flexible film is bent in such a way that the light-emitting surface and the first surface face each other.
    Type: Application
    Filed: January 27, 2015
    Publication date: February 18, 2016
    Inventors: Dong-wook CHOI, Minjae KIM, Sun A YANG, Jongho CHONG
  • Publication number: 20160018678
    Abstract: An organic light emitting display device includes a substrate, a display structure disposed on a first face of the substrate, and a light transmission controlling member disposed on a second face of the substrate opposed to the first face, in which the light transmission controlling member includes a shape memory polymer configured to change its shape to control an amount of an external light passing through the light transmission controlling member.
    Type: Application
    Filed: January 22, 2015
    Publication date: January 21, 2016
    Inventors: Dong-Wook CHOI, Jong-Ho CHONG
  • Publication number: 20150343970
    Abstract: An energy storage system is provided. The system includes an energy storage device including at least one battery module, a power adjuster that adjusts power of the energy storage device, a controller that controls the energy storage device and the power adjuster, a rack that accommodates the energy storage device, the power adjuster and the controller, the rack including at least one stationary coupler fixed to a movable unit and at least one support device that supports the energy storage system against the moveable unit.
    Type: Application
    Filed: January 13, 2015
    Publication date: December 3, 2015
    Applicant: LG CNS CO., LTD.
    Inventors: Dong Wook CHOI, Dong Chul KO, Sang Hyub KIM, Tae Hyoung RYU, Byoung Seung LEE
  • Publication number: 20150185787
    Abstract: A method of displaying folding information includes evaluating a folded state of a foldable display apparatus, measuring a folding accumulation time that indicates an amount of time that the folded state is maintained, determining the folding information based on the folding accumulation time, and displaying the folding information on a display panel of the foldable display apparatus.
    Type: Application
    Filed: April 28, 2014
    Publication date: July 2, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: DONG-WOOK CHOI, BYEONG-HWA CHOI, SUNG-SU HONG
  • Publication number: 20150146349
    Abstract: A display device may include a foldable display member. The foldable display member may include a first portion, a second portion, and a bendable portion. The first portion may be connected through the bendable portion to the second portion. The display device may further include a first controllable member that may overlap the bendable portion. The display device may further include a control unit connected to the first controllable member and configured to provide a first signal to control a size of the first controllable member according to a magnitude of an angle between the first portion and the second portion.
    Type: Application
    Filed: March 19, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Wook CHOI, Jeong-Eun SEO, Hyun-Ah SUH, Young-Jin LEE
  • Patent number: 8681135
    Abstract: A photo sensor capable of reducing the distortion of signals output from the photo sensor to output a correct measured value and an organic light emitting display using the same. The organic light emitting display includes a pixel unit formed on a transparent substrate to display an image in response to scan signals and data signals, a scan driver generating the scan signals to transmit the scan signals to the pixel unit, a data driver generating the data signals to transmit the data signals to the pixel unit, and a photo sensor including a sensing unit sensing brightness of ambient light to output a sensing signal and a control unit for receiving the sensing signal to output a brightness control signal for controlling brightness of the image.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Sung Ahn, Do-Youb Kim, Sun-A Yang, Dong-Wook Choi, Joo-Hyeon Jeong