Patents by Inventor Chang-Wook Kang

Chang-Wook Kang 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: 20240113149
    Abstract: Disclosed are a backside illuminated image sensor and a method of manufacturing the same. More particularly, a backside illuminated image sensor and a method of manufacturing the backside illuminated image sensor include a plurality of sequential layers have different refractive indexes to extend a path of incident light passing through a lens, thereby increasing sensitivity.
    Type: Application
    Filed: March 27, 2023
    Publication date: April 4, 2024
    Inventors: Chang Hun HAN, Ju Hwan JUNG, Sang Won YUN, Tae Wook KANG
  • Patent number: 11931884
    Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: March 19, 2024
    Assignees: GeoSystem Inc., Buildingpointkorea Inc.
    Inventors: Dong Hun Kang, Jong Hyun Oh, Ji Eun Kim, Chang Wook Joh, Young Hoon Koh
  • Patent number: 10339853
    Abstract: A mobile terminal according to an exemplary embodiment includes: a display unit including a display panel including a plurality of pixels, a scan driver including a plurality of stages connected to at least one of the plurality of pixels and supplying a scanning signal, and a data driver configured to supply a data voltage to the plurality of pixels; an eye detecting sensor configured to detect an eye position of a user with respect to the display panel; and a controller configured to generate a control signal that controls the display unit and outputting the control signal, wherein the scan driver is configured to supply a scanning signal from a stage corresponding to one region of the display panel where the eye of the user is directed.
    Type: Grant
    Filed: October 22, 2017
    Date of Patent: July 2, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo Hyuk Bang, Chang Wook Kang, Byung Hyuk Son, In Ho Cho
  • Publication number: 20180130402
    Abstract: A mobile terminal according to an exemplary embodiment includes: a display unit including a display panel including a plurality of pixels, a scan driver including a plurality of stages connected to at least one of the plurality of pixels and supplying a scanning signal, and a data driver configured to supply a data voltage to the plurality of pixels; an eye detecting sensor configured to detect an eye position of a user with respect to the display panel; and a controller configured to generate a control signal that controls the display unit and outputting the control signal, wherein the scan driver is configured to supply a scanning signal from a stage corresponding to one region of the display panel where the eye of the user is directed.
    Type: Application
    Filed: October 22, 2017
    Publication date: May 10, 2018
    Inventors: Joo Hyuk BANG, Chang Wook Kang, Byung Hyuk Son, In Ho Cho
  • Patent number: 9305987
    Abstract: A pixel includes a capacitor coupled to a transistor, a first insulating layer over a semiconductor layer of the transistor, a second insulating layer over the first insulating layer, and a blocking layer between the first insulating layer and the second insulating layer. The first plate of the capacitor is on the first insulating layer and a second plate of the capacitor on the second insulating layer. The blocking layer may be made of a natural oxide layer and the first insulating layer may be made of a material different from the blocking layer.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Chang-Wook Kang
  • Patent number: 9202404
    Abstract: A display driving apparatus for outputting control signals to a number of driver integrated circuits (ICs). The plurality of driver ICs are connected in a cascade manner such that, when a first control signal is input to a first driver IC, a transmission signal corresponding to the first control signal is transmitted to a subsequent driver IC using a cascade method. The display driving apparatus includes a restoration signal generation unit for generating restoration signals with respect to the first control signal and transmission signals of the number of driver ICs; an error detection unit for detecting an abnormal driver IC that does not operate normally from among the plurality of driver ICs; and a restoration signal output unit for outputting a restoration signal to the abnormal driver IC.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: December 1, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hisashi Kimura, Chang-Wook Kang
  • Patent number: 9165492
    Abstract: A display driving apparatus for outputting control signals to a number of driver integrated circuits (ICs). The plurality of driver ICs are connected in a cascade manner such that, when a first control signal is input to a first driver IC, a transmission signal corresponding to the first control signal is transmitted to a subsequent driver IC using a cascade method. The display driving apparatus includes a restoration signal generation unit for generating restoration signals with respect to the first control signal and transmission signals of the number of driver ICs; an error detection unit for detecting an abnormal driver IC that does not operate normally from among the plurality of driver ICs; and a restoration signal output unit for outputting a restoration signal to the abnormal driver IC.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hisashi Kimura, Chang-Wook Kang
  • Publication number: 20140319480
    Abstract: A pixel includes a capacitor coupled to a transistor, a first insulating layer over a semiconductor layer of the transistor, a second insulating layer over the first insulating layer, and a blocking layer between the first insulating layer and the second insulating layer. The first plate of the capacitor is on the first insulating layer and a second plate of the capacitor on the second insulating layer. The blocking layer may be made of a natural oxide layer and the first insulating layer may be made of a material different from the blocking layer.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 30, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventor: Chang-Wook KANG
  • Publication number: 20140021870
    Abstract: There is provided an organic light emitting display capable of displaying an image of uniform brightness. The organic light emitting display includes a panel including pixels, the pixels including driving transistors, the gate electrodes of the driving transistors being configured to be initialized by voltages supplied from an initializing power supply, and an initializing power supply generator for supplying the initializing power supply. The initializing power supply generator is configured to set a voltage value of the initializing power supply to vary to correspond to a position of the panel.
    Type: Application
    Filed: November 2, 2012
    Publication date: January 23, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Bo AN, Chang-Wook KANG, Dong-Hwan LEE
  • Patent number: 8556652
    Abstract: A flexible printed circuit board (FPCB) assembly including a plurality of FPCBs configured to be plugged into a single combination slot of a single connector, each of the FPCBs including a body, and a plug unit at an end portion of the body, wherein the plug units of the plurality of FPCBs are configured to be combinedly plugged together into the single combination slot.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 15, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Wook Kang, Hoe-Woo You
  • Publication number: 20120223659
    Abstract: A flexible printed circuit board (FPCB) assembly including a plurality of FPCBs configured to be plugged into a single combination slot of a single connector, each of the FPCBs including a body, and a plug unit at an end portion of the body, wherein the plug units of the plurality of FPCBs are configured to be combinedly plugged together into the single combination slot.
    Type: Application
    Filed: September 23, 2011
    Publication date: September 6, 2012
    Inventors: Chang-Wook Kang, Hoe-Woo You
  • Publication number: 20110199344
    Abstract: A display driving apparatus for outputting control signals to a number of driver integrated circuits (ICs). The plurality of driver ICs are connected in a cascade manner such that, when a first control signal is input to a first driver IC, a transmission signal corresponding to the first control signal is transmitted to a subsequent driver IC using a cascade method. The display driving apparatus includes a restoration signal generation unit for generating restoration signals with respect to the first control signal and transmission signals of the number of driver ICs; an error detection unit for detecting an abnormal driver IC that does not operate normally from among the plurality of driver ICs; and a restoration signal output unit for outputting a restoration signal to the abnormal driver IC.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 18, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Hisashi KIMURA, Chang-Wook KANG
  • Publication number: 20100079709
    Abstract: The present invention relates to a liquid crystal display. The liquid crystal display includes a liquid crystal panel having a first and a second side, a first polarizer arranged on the first side of the liquid crystal panel, and a backlight unit arranged on the first side of the liquid crystal panel, the first polarizer being arranged between the liquid crystal panel and the backlight unit, a second polarizer arranged on the second side of the liquid crystal panel, and a first half-wave plate arranged on the second side of the liquid crystal panel, the second polarizer arranged between the liquid crystal panel and the first half-wave plate. A slow axis of the first half-wave plate meets a transmission axis of the second polarizer at a first angle ?1 so that the first half-wave plate rotates the polarization axis of polarized light transmitted from the second polarizer.
    Type: Application
    Filed: July 6, 2009
    Publication date: April 1, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-Sang Park, Dong-Hwan Kim, Ahn-Ho Jee, Chang-Kil Lee, Chang-Wook Kang
  • Publication number: 20080055268
    Abstract: A plurality of pixel parts is electrically connected to gate and source lines. Each of the pixel parts has a thin-film transistor (TFT) formed therein. A plurality of hall sensing parts is formed in the pixel parts. A plurality of hall sensing parts varies a reference current applied to the gate and the source lines by a magnetic member. The position detector is electrically connected to the gate lines and the source lines. The position detector detects a position of the magnetic member using the gate and source lines to which a varied current is applied. The plurality of hall sensing parts formed in the pixel parts detect the position of the magnetic member that approaches or contacts the screen of the display.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 6, 2008
    Inventors: Dan-Sik YOO, Teruo KATAKURA, Chang-Wook KANG