Patents by Inventor Hong-Woo Lee

Hong-Woo 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).

  • Publication number: 20160189654
    Abstract: A display panel includes: a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of pixels; a gate driver connected to the plurality of gate lines to apply a gate signal voltage; a data driver connected to the plurality of data lines to apply a data voltage and a negative data voltage; and a gate voltage divider for generating a gate signal voltage including gate-on and gate-off voltages to provided it to the gate driver. The gate voltage divider adjusts the gate-off voltage in accordance with a driving time of the display panel and a temperature of the display panel.
    Type: Application
    Filed: May 19, 2015
    Publication date: June 30, 2016
    Inventors: Yoon Ho KIM, Beom Jun KIM, Geun Hyuk CHOI, Noboru TAKEUCHI, Yong Soon LEE, Jong Hwan LEE, Hong-Woo LEE, Yong-Sik HWANG
  • Patent number: 9030454
    Abstract: A display device includes an insulation substrate; a plurality of gate lines arranged on the insulation substrate in a first direction and including first group of gate lines and second group of gate lines; a plurality of data lines insulated from and crossing the plurality of gate lines; a gate driver applying gate-on voltages to the plurality of gate lines; and a data driver applying data voltages to the plurality of data lines, wherein at least one of the first group of gate lines is arranged between the second group of gate lines and the gate driver applies the gate-on voltages to the first group of gate lines during the first half of a frame and the gate-on voltages to the second group of gate lines during the second half of the frame.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: May 12, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong-Woo Lee, Ju Hyeon Baek, Jae Min Seong, Jong Hwan Lee
  • Patent number: 8941576
    Abstract: A display panel includes a gate driver connected to a gate line, where the gate driver includes a plurality of stages, where each of the stages includes at least one dual gate thin film transistor having a first control terminal and a second control terminal, and where each of the stages receives a clock signal, a first low voltage, a second low voltage, at least one transmission signal of previous stages, at least two transmission signals of subsequent stages and an output control signal from one of the stages to output a gate voltage including a gate-on voltage and a gate-off voltage.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: January 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Shin Tack Kang, Kyung-Hee Kim, Beom Jun Kim, Sung Man Kim, Jong Hwan Lee, Hong Woo Lee, Hye Rhee Han, Ji Hye Heo
  • Patent number: 8902146
    Abstract: An array substrate of an LCD having: a gate line formed along a first direction; a data line formed along a second direction crossing the first direction; first and second pixel electrodes spaced apart from each other; a thin-film transistor includes a gate electrode connected to the gate line; a source electrode connected to the data line and partially overlapping the second pixel electrode; and a drain electrode connected to the first pixel electrode spaced apart from the second pixel electrode along the second direction. The source electrode or the gate electrode overlaps the second pixel electrode but the drain electrode does not overlap the second pixel electrode. Electrical coupling between the first and second pixel electrodes are avoided with such configuration.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beom-Jun Kim, Hee-Joon Kim, Hong-Woo Lee, Hye-Rhee Han, Hyeong-Jun Park, Jin-Suk Seo
  • Patent number: 8810498
    Abstract: A gate driving circuit includes a plurality of stages which are connected to each other one after another and each stage of the plurality of stages outputs a gate voltage to a corresponding gate line of a plurality of gate lines in response to at least one clock signal. Each stage of the plurality of stages includes; a voltage output part which outputs the gate voltage, an output driving part which drives the voltage output part, a holding part which holds the gate line at an off-voltage, and a discharge part arranged at a first end of the gate line to discharge the gate line to the off-voltage in response to the gate voltage output from the voltage output part.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungman Kim, Beomjun Kim, Bong-Jun Lee, Hong-Woo Lee, Jae-seung Kim, Byung-Su Oh
  • Patent number: 8704748
    Abstract: A gate driving circuit and a display device having the same, a pull-up unit pulls up a current gate signal by using a first clock signal during a first period of one frame. A pull-up driver coupled to the pull-up unit receives a carry signal from one of the previous stages to turn on the pull-up unit. A pull-up unit receives a gate signal from one of the next stages, discharges the current gate signal to an off voltage level, and turns off the pull-up unit. A holder holds the current gate signal at the voltage level. An inverter turns on/off the holder in response to a first clock signal. A ripple preventer has a source and a gate coupled in common to an output terminal of the pull-up unit and a drain coupled to an input terminal of the inverter, and includes a ripple preventing diode for preventing a ripple from being applied to the inverter.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Man Kim, Hong-Woo Lee, Myung-Koo Hur, Hee-Joon Kim
  • Patent number: 8672354
    Abstract: An underbody for an electric vehicle configured as an electric vehicle lower body includes a multiply divided battery mounting portion and an underbody portion. The multiply divided battery mounting portion enables multiply divided and selective mounting of batteries, and forms a portion of the underbody. The underbody portion is connected to the battery mounting portion and forms another portion of the underbody.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: March 18, 2014
    Assignee: POSCO
    Inventors: Jae-Hyun Kim, Hong-Woo Lee, Hyoun-Young Lee, Yeon-Sik Kang
  • Patent number: 8659564
    Abstract: A touch sensible display device includes a display panel. The display panel includes a plurality of pixels, a plurality of image data lines transferring image data signals to the plurality of pixels and each positioned between two neighboring pixels, a plurality of image scanning lines transferring image scanning signals to the plurality of pixels, a plurality of first sense data lines transferring first sense data signals and each positioned between two neighboring pixels without the image data line interposed therebetween, and a plurality of first sensing units connected with the plurality of first sense data lines and sensing a touch to the display panel.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: February 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Man Kim, Beom-Jun Kim, Bong-Jun Lee, Hong-Woo Lee
  • Patent number: 8619070
    Abstract: An n-th stage (wherein, n is an integer) of the stages of a gate driving circuit includes a pull-up part, a first variable mode part and a second variable mode part. At least one of the first and second variable mode parts includes a variable element. The variable element comprises a first thin-film transistor (TFT) turned on in response to a first level voltage of the first or second direction signal, a second TFT applying the first or second direction signal to a control part of the pull-up part in response to an output signal of a previous stage or an output signal of a next stage, and a third TFT connected to the second TFT through the first TFT.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 31, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong-Woo Lee, Eung-Gyu Lee, Jong-Hwan Lee, Sung-Man Kim
  • Publication number: 20130299831
    Abstract: An array substrate of an LCD having: a gate line formed along a first direction;a data line formed along a second direction crossing the first direction;first and second pixel electrodes spaced apart from each other;a thin-film transistor includes a gate electrode connected to the gate line; a source electrode connected to the data line and partially overlapping the second pixel electrode; and a drain electrode connected to the first pixel electrode spaced apart from the second pixel electrode along the second direction. The source electrode or the gate electrode overlaps the second pixel electrode but the drain electrode does not overlap the second pixel electrode. Electrical coupling between the first and second pixel electrodes are avoided with such configuration.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventors: BEOM-JUN KIM, Hee-Joon Kim, Hong-Woo Lee, Hye-Rhee Han, Hyeong-Jun Park, Jin-Suk Seo
  • Patent number: 8574362
    Abstract: The present invention relates to a method for manufacturing an ultra low defect semiconductor single crystalline ingot, which uses a Czochralski process for growing a semiconductor single crystalline ingot through a solid-liquid interface by dipping a seed into a semiconductor melt received in a quartz crucible and slowly pulling up the seed while rotating the seed, wherein a defect-free margin is controlled by increasing or decreasing a heat space on a surface of the semiconductor melt according to change in length of the single crystalline ingot as progress of the single crystalline ingot growth process.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: November 5, 2013
    Assignee: Siltron, Inc.
    Inventors: Young-Ho Hong, Hyon-Jong Cho, Sung-Young Lee, Seung-Ho Shin, Hong-Woo Lee
  • Patent number: 8565370
    Abstract: A pull-up driving part maintains a signal of a first node at a high level by receiving a turn-on voltage in response to one of a previous stage or a vertical start signal. A pull-up part outputs a clock signal through an output terminal in response to the signal of the first node. A first holding part maintains a signal of a second node at a high level or a low level when the signal of the first node is respectively low or high. A second holding part maintains the signal of the first node and a signal of the output terminal at a ground voltage in response to the signal of the second node or a delayed and inverted clock signal.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong-Woo Lee, Sung-Man Kim, Jong-Hyuk Lee, Jong-Hwan Lee, Hyeon-Hwan Kim, Sang-Moon Moh, Jeong-Il Kim, Yeon-Kyu Moon
  • Patent number: 8508450
    Abstract: An array substrate of an LCD having: a gate line formed along a first direction; a data line formed along a second direction crossing the first direction; first and second pixel electrodes spaced apart from each other; a thin-film transistor includes a gate electrode connected to the gate line; a source electrode connected to the data line and partially overlapping the second pixel electrode; and a drain electrode connected to the first pixel electrode spaced apart from the second pixel electrode along the second direction. The source electrode or the gate electrode overlaps the second pixel electrode but the drain electrode does not overlap the second pixel electrode. Electrical coupling between the first and second pixel electrodes are avoided with such configuration.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beom-Jun Kim, Hee-Joon Kim, Hong-Woo Lee, Hye-Rhee Han, Hyeong-Jun Park, Jin-Suk Seo
  • Patent number: 8503765
    Abstract: An embodiment of the present invention relates to a method and apparatus for correcting errors in stereo images. The apparatus for correcting errors in stereo images according to an embodiment of the present invention comprises: a space histogram generation unit generating space histogram information using the depth map information on the input image data; a peak frequency generation unit generating a peak frequency using the 2D image data of the input image data; an object analysis unit determining the error in each frame of the input image data on the basis of the space histogram and peak frequency; a depth map error correction unit correcting the depth map information to reduce the error; and a rendering processing unit generating left and right eye images, which are stereo images, by using the corrected depth map information.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: August 6, 2013
    Assignee: SK Planet Co., Ltd.
    Inventors: Dae Sic Woo, Byoung Ki Jeon, A Ran Kim, Hong Woo Lee, Jong Dae Kim, Won Suk Chung
  • Publication number: 20130180633
    Abstract: A multi physical properties part used in automotive components required to be lightweight and provide collision safety, and a method of manufacturing a multi physical properties part, in which the multi physical properties part may be more economically and simply manufactured by using two or more separated die sets without using an additional heating device or treating a die surface. A method of manufacturing a multi physical properties part, which includes positioning a single heated formed article in two or more die sets, and then manufacturing a multi physical properties part including two or more regions having different physical properties by differing cooling conditions in the respective die set.
    Type: Application
    Filed: December 20, 2011
    Publication date: July 18, 2013
    Applicant: POSCO
    Inventors: Hong-Woo Lee, Jae-Hyun Kim, Hyoun-Young Lee, Yeon-Sik Kang
  • Patent number: 8489036
    Abstract: A mobile phone to transmit and receive a radio frequency signal through a first antenna and a second antenna in a radio communication system includes a first radio frequency signal receiving unit to convert the radio frequency signal received through the first antenna into a baseband signal to be transmitted to a controller, a second radio frequency signal receiving unit to convert the radio frequency signal received through the second antenna into a baseband signal to be transmitted to the controller, and a radio frequency signal transmitting unit to convert a baseband signal transmitted from the controller into a radio frequency signal, to distribute the radio frequency signal, and to selectively output the distributed radio frequency signal to the first antenna and the second antenna.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: July 16, 2013
    Assignee: Pantech Co., Ltd.
    Inventors: In Kwang Kim, Hong Woo Lee
  • Publication number: 20130175829
    Abstract: An underbody for an electric vehicle configured as an electric vehicle lower body includes a multiply divided battery mounting portion and an underbody portion. The multiply divided battery mounting portion enables multiply divided and selective mounting of batteries, and forms a portion of the underbody. The underbody portion is connected to the battery mounting portion and forms another portion of the underbody.
    Type: Application
    Filed: December 27, 2011
    Publication date: July 11, 2013
    Applicant: POSCO
    Inventors: Jae-Hyun Kim, Hong-Woo Lee, Hyoun-Young Lee, Yeon-Sik Kang
  • Publication number: 20130113772
    Abstract: A display panel includes a gate driver connected to a gate line, where the gate driver includes a plurality of stages, where each of the stages includes at least one dual gate thin film transistor having a first control terminal and a second control terminal, and where each of the stages receives a clock signal, a first low voltage, a second low voltage, at least one transmission signal of previous stages, at least two transmission signals of subsequent stages and an output control signal from one of the stages to output a gate voltage including a gate-on voltage and a gate-off voltage.
    Type: Application
    Filed: March 26, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin Tack KANG, Kyung-Hee KIM, Beom Jun KIM, Sung Man KIM, Jong Hwan LEE, Hong Woo LEE, Hye Rhee HAN, Ji Hye HEO
  • Publication number: 20130100102
    Abstract: A display device includes an insulation substrate; a plurality of gate lines arranged on the insulation substrate in a first direction and including first group of gate lines and second group of gate lines; a plurality of data lines insulated from and crossing the plurality of gate lines; a gate driver applying gate-on voltages to the plurality of gate lines; and a data driver applying data voltages to the plurality of data lines, wherein at least one of the first group of gate lines is arranged between the second group of gate lines and the gate driver applies the gate-on voltages to the first group of gate lines during the first half of a frame and the gate-on voltages to the second group of gate lines during the second half of the frame.
    Type: Application
    Filed: March 27, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-Woo LEE, Ju Hyeon BAEK, Jae Min SEONG, Jong Hwan LEE
  • Publication number: 20130069942
    Abstract: One embodiment of the present invention relates to a method and a apparatus for converting a three-dimensional image using depth map information. The apparatus comprise a depth map estimation unit which estimates the depth map information for each pixel present in each frame of input image data, a depth map application unit which moves each pixel by the depth map information in the X-axis direction, a 3D image interpolation unit which, when a blank pixel occurs in the frame due to the movement, forms an interpolated pixel in the blank pixel by applying a weight to adjacent pixels of the blank pixel, and a 3D image rendering processing unit which renders a left-eye image and a right-eye image to which the interpolated pixel is applied.
    Type: Application
    Filed: April 7, 2011
    Publication date: March 21, 2013
    Applicant: SK Planet Co., Ltd.
    Inventors: Dae Sic Woo, Byoung Ki Jeon, A Ran Kim, Hong Woo Lee, Jong Ho Ha, Ji Hoon Park, Won Suk Chung