Patents by Inventor Byung-Koo Kang

Byung-Koo 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).

  • Patent number: 10175801
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Publication number: 20180024679
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Application
    Filed: August 16, 2017
    Publication date: January 25, 2018
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9766736
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: September 19, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9495030
    Abstract: Discussed is an LCD device including a touch screen which reduces the influence of noise applied to the touch screen by driving of a liquid crystal panel and thus leads to enhancement of the touch sensing performance. The LCD device includes a liquid crystal panel, a plurality of first touch electrodes, an insulation unit, a tempered glass, and a plurality of second touch electrodes. The liquid crystal panel includes a lower substrate and an upper substrate. The first touch electrodes are formed on the upper substrate for detecting a touch point in a first direction. The insulation unit is formed on the first touch electrodes. The tempered glass is formed on the insulation unit. The second touch electrodes are formed at a lower surface of the tempered glass for detecting a touch point in a second direction.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 15, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Hun Shin, Byung Koo Kang, Moon Bong Song, Shi Cheol Song
  • Publication number: 20160034085
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 4, 2016
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 9141223
    Abstract: Disclosed are a liquid crystal display device having touch and three-dimensional display functions and a method for manufacturing the same. The liquid crystal display device includes a touch and three-dimensional image display panel adhered to a liquid crystal panel through an adhesive layer, wherein the touch and three-dimensional image display panel includes a lower substrate provided with first and second electrodes for realizing a three-dimensional image, a upper substrate provided with third and fourth electrodes for sensing touch and a common electrode for realizing the three-dimensional image, and a liquid crystal display filled between the upper and lower substrates.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: September 22, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: So-Hyung Lee, Byung-Koo Kang, Dong-Sup Kim, Jong-Hyun Han
  • Patent number: 8842227
    Abstract: The liquid crystal display device includes a first substrate and a second substrate, a gate line and a data line on the first substrate to define a pixel region, a pixel transistor formed at the intersection of the gate line and the data line, a pixel electrode formed in the pixel region, a first storage capacitor connected to the pixel electrode, a switching line formed on the first substrate, a read out line formed on the first substrate, a second storage capacitor formed on the first substrate, a switching transistor including a gate electrode connected to the second storage capacitor, a drain electrode connected to the read out line, and a source electrode connected to a driving voltage line, a first column spacer formed on the second substrate, and a common electrode formed on the first column spacer thereby forming a sensing capacitor.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: September 23, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Cheol-Se Kim, Ji-Hyun Jung, Byung-Koo Kang, Min-Jae Lee, Hoon-Bae Kim, Seung-Seok Oh
  • Patent number: 8686932
    Abstract: A liquid crystal display (LCD) device includes: a plurality of gate lines; a plurality of data lines that cross the gate lines to define pixel regions; a plurality of thin film transistors at the crossings of the gate and data lines, the thin film transistors of vertically adjacent pixels each connected to a shared gate line of the plurality of gate lines and on opposite sides of the shared gate line; and a plurality of pixel electrodes in the pixel regions, wherein each pixel electrode of the plurality of pixel electrodes is formed in two horizontally-adjacent pixel regions.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: April 1, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Koo Kang, Eui Tae Kim
  • Publication number: 20120218198
    Abstract: Discussed is an LCD device including a touch screen which reduces the influence of noise applied to the touch screen by driving of a liquid crystal panel and thus leads to enhancement of the touch sensing performance. The LCD device includes a liquid crystal panel, a plurality of first touch electrodes, an insulation unit, a tempered glass, and a plurality of second touch electrodes. The liquid crystal panel includes a lower substrate and an upper substrate. The first touch electrodes are formed on the upper substrate for detecting a touch point in a first direction. The insulation unit is formed on the first touch electrodes. The tempered glass is formed on the insulation unit. The second touch electrodes are formed at a lower surface of the tempered glass for detecting a touch point in a second direction.
    Type: Application
    Filed: December 6, 2011
    Publication date: August 30, 2012
    Inventors: Jae Hun SHIN, Byung Koo Kang, Moon Bong Song, Shi Cheol Song
  • Patent number: 8253918
    Abstract: An array substrate for an in-plane switching mode liquid crystal display device includes a substrate, a gate line along a first direction on the substrate, a data line along a second direction and crossing the gate line to define a pixel region, a common line on the substrate, a thin film transistor connected to the gate and data lines, a pixel electrode in the pixel region and connected to the thin film transistor, the pixel electrode including horizontal parts along the first direction, and a common electrode in the pixel region and connected to the common line, the common electrode including horizontal portions along the first direction, wherein the pixel electrode and the common electrode are formed on a same layer.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: August 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Byoung-Ho Lim, Hyun-Kyu Lee, Do-Sung Kim, Byung-Koo Kang, Do-Young Lee, Eui-Tae Kim, Sang-Wook Park
  • Publication number: 20120135552
    Abstract: An array substrate for an in-plane switching mode liquid crystal display device includes a substrate, a gate line along a first direction on the substrate, a data line along a second direction and crossing the gate line to define a pixel region, a common line on the substrate, a thin film transistor connected to the gate and data lines, a pixel electrode in the pixel region and connected to the thin film transistor, the pixel electrode including horizontal parts along the first direction, and a common electrode in the pixel region and connected to the common line, the common electrode including horizontal portions along the first direction, wherein the pixel electrode and the common electrode are formed on a same layer.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 31, 2012
    Applicant: LG Display Co., Ltd.
    Inventors: Byoung-Ho LIM, Hyun-Kyu LEE, Do-Sung KIM, Byung-Koo KANG, Do-Young LEE, Eui-Tae KIM, Sang-Wook PARK
  • Patent number: 8159642
    Abstract: An in-plane switching (IPS) liquid crystal mode liquid crystal display device that prevents signal interference of a data line and disclination is disclosed. The in-plane switching (IPS) mode liquid crystal display (LCD) device includes first and second substrates; a gate line on the first substrate; a data line crossing the gate line to form a pixel region; a thin film transistor at the crossing of the gate line and the data line; a plurality of pixel electrodes and common electrodes alternately arranged in parallel in an extended direction of the gate line and generating an in-plane field of a first direction; an alignment film rubbed in a direction substantially perpendicular to the data line; and a liquid crystal layer between the first and second substrates, wherein the pixel electrode and the common electrode are bent at both ends thereof and the in-plane field in the first direction is generated from both ends of the pixel electrode and the common electrode.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: April 17, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Byung Koo Kang
  • Patent number: 8130351
    Abstract: An array substrate for an in-plane switching mode liquid crystal display device includes a substrate, a gate line along a first direction on the substrate, a data line along a second direction and crossing the gate line to define a pixel region, a common line on the substrate, a thin film transistor connected to the gate and data lines, a pixel electrode in the pixel region and connected to the thin film transistor, the pixel electrode including horizontal parts along the first direction, and a common electrode in the pixel region and connected to the common line, the common electrode including horizontal portions along the first direction, wherein the pixel electrode and the common electrode are formed on a same layer.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Byoung-Ho Lim, Hyun-Kyu Lee, Do-Sung Kim, Byung-Koo Kang, Do-Young Lee, Eui-Tae Kim, Sang-Wook Park
  • Publication number: 20110063537
    Abstract: The liquid crystal display device includes a first substrate and a second substrate, a gate line and a data line on the first substrate to define a pixel region, a pixel transistor formed at the intersection of the gate line and the data line, a pixel electrode formed in the pixel region, a first storage capacitor connected to the pixel electrode, a switching line formed on the first substrate, a read out line formed on the first substrate, a second storage capacitor formed on the first substrate, a switching transistor including a gate electrode connected to the second storage capacitor, a drain electrode connected to the read out line, and a source electrode connected to a driving voltage line, a first column spacer formed on the second substrate, and a common electrode formed on the first column spacer thereby forming a sensing capacitor.
    Type: Application
    Filed: December 10, 2009
    Publication date: March 17, 2011
    Inventors: Cheol-Se Kim, Ji-Hyun Jung, Byung-Koo Kang, Min-Jae Lee, Hoon-Bae Kim, Seung-Seok Oh
  • Patent number: 7884910
    Abstract: A liquid crystal display device includes a gate line formed on a substrate; first and second data lines crossing the gate line to form adjacent pixel regions in a direction of the gate line; pixel electrodes and common electrodes substantially parallel to each other and generating an in-plane electric field; a first pixel electrode line parallel to the first data line and spaced apart from the first data line by a first isolation distance; a second pixel electrode line spaced apart from the second data line by a second isolation distance; and a first common line parallel to the first data line and spaced apart from the first data line by a third isolation distance; a second common line spaced from the second data line by a fourth isolation distance, wherein the first isolation distance is shorter than the third isolation distance, and a parasitic capacitance between the first pixel electrode line and the first data line is greater than a parasitic capacitance between the second pixel electrode line and the se
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: February 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Do Sung Kim, Byung Koo Kang, Do Young Lee, Sung Soo Chang
  • Patent number: 7751012
    Abstract: An array substrate for an IPS mode LCD device includes a gate line in a first direction on a substrate and a data line in a second direction over the substrate; a metal and a common lines in the second direction on the substrate and includes a plurality of first and second protruding portions in the first direction, respectively; a TFT connected to the gate and data lines; an insulating layer over the metal and common lines; a common electrode over the insulating layer and including a first common portion in the second direction and a plurality of second common portions in the first direction; and a pixel electrode over the insulating layer and including a first pixel portion in the second direction and a plurality of second pixel portions in the first direction, wherein the plurality of second common and pixel portions are alternately arranged.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Young Lee, Byoung-Ho Lim, Hyun-Kyu Lee, Do-Sung Kim, Byung-Koo Kang, Eui-Tae Kim
  • Patent number: 7688411
    Abstract: Provided is a multi-domain liquid crystal display device capable of improving a viewing angle by decreasing a color shift. The multi-domain LCD device includes a first substrate, a second substrate, a plurality of gate lines provided in one direction on the first substrate, a plurality of data lines provided substantially perpendicular to the plurality of gate lines to define a plurality of pixel regions including a first area and a second area, a common electrode and a pixel electrode which generate a parallel electric field within the first area to improve luminance, a common electrode and a pixel electrode which generate a parallel electric field within the second area to decrease color shift, and a liquid crystal layer formed between the first substrate and the second substrate.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: March 30, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Do-Sung Kim, Byung-Koo Kang, Young-Mi Tak
  • Patent number: 7612854
    Abstract: A substrate for a liquid crystal display device includes a gate line along a first direction on a substrate, a data line along a second direction and crossing the gate line to define a pixel region, a thin film transistor on the substrate and electrically connected to the gate and data lines, a pixel electrode in the pixel region and connected to the thin film transistor, and a common electrode in the pixel region, a first capacitance between the data line and the common and pixel electrodes at a first side of the data line being substantially equal to a second capacitance between the data line and the common and pixel electrodes at a second side of the data line.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: November 3, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Byung-Koo Kang
  • Patent number: 7576823
    Abstract: A liquid crystal display device including a gate line formed on a first substrate; first and second adjacent data lines crossing the gate line to form adjacent pixel regions in an extended direction of the gate line; only one pixel electrode line in parallel with the first data line in each of the pixel regions; a plurality of pixel electrodes formed to be protruded in the extended direction of the gate line from the pixel electrode line; a plurality of common electrodes alternately formed in parallel with the plurality of pixel electrodes and generating an in-plane electric field therebetween; and an alignment film having a rubbing direction perpendicular to the first data line.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: August 18, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Byung Koo Kang, Woon Sub Choi
  • Publication number: 20090147163
    Abstract: An in-plane switching LCD including a plurality of gate and data lines crossing each other to define a plurality of pixel areas; a thin film transistor formed at a crossing of the data and gate lines; a pair of common lines facing each other and substantially parallel to the data lines in the pixel areas; a common electrode integrally formed with the common lines, the common electrode being inclined by a predetermined angle; a pair of pixel electrode lines overlapping the common lines; and a pixel electrode integrally formed with the pixel electrode lines, the pixel electrode being inclined substantially parallel to the common electrode, the pixel electrode being arranged in an alternating pattern with the common electrode, wherein the gate lines are formed substantially parallel to the common electrode and the pixel electrode.
    Type: Application
    Filed: January 27, 2009
    Publication date: June 11, 2009
    Inventors: Do Sung Kim, Byung Koo Kang