Patents by Inventor Joon-Chul Goh

Joon-Chul Goh 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: 8373814
    Abstract: An approach of a circuit configuration is provided for operating a display panel and a liquid crystal display with high aperture ratio, transmittance and visibility, the circuit configuration includes: a gate line; a data line intersecting the gate line; a first transistor connected to the gate line and the data line; a second transistor connected to the gate line and the data line; a storage electrode line separated from the gate line; a third transistor connected to the storage electrode line and the second transistor; a first pixel electrode connected to the first transistor; and a second pixel electrode connected to the second transistor and the third transistor. The third transistor being separated from an additional gate line is connected to the storage electrode line such that the aperture ratio can be increased, and visibility and transmittance can be enhanced.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Young-Soo Yoon, Joon-Chul Goh, Chong-Chul Chai
  • Publication number: 20130027326
    Abstract: A light-sensing apparatus in which a light sensor transistor in a light-sensing pixel is formed of an oxide semiconductor transistor for sensing light, a method of driving the light-sensing apparatus, and an optical touch screen apparatus including the light-sensing apparatus. The light-sensing apparatus includes a light-sensing pixel array having a plurality of light-sensing pixels arranged in rows and columns, and a plurality of gate lines which are arranged in a row direction and respectively provide a gate voltage to the light-sensing pixel. Each of the light-sensing pixels includes a light sensor transistor for sensing light and a switch transistor for outputting a light-sensing signal from the light sensor transistor, and gates of the light sensor transistors of the light-sensing pixels arranged in an arbitrary row are connected to a gate line arranged in a row previous or next to the arbitrary row.
    Type: Application
    Filed: May 7, 2012
    Publication date: January 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Kim, I-hun Song, Sang-hun Jeon, Seung-eon Ahn, Joon-chul Goh, Cheol-gon Lee
  • Patent number: 8358295
    Abstract: A vertical alignment liquid crystal display includes two sub-pixels each with a variable capacitor. A pixel is bisected into a high gray sub-pixel and a low gray sub-pixel through forming a variable capacitor at each sub-pixel. With this structure, the sub-pixels express different grays so that lateral visibility is enhanced. It is not required in bisecting a pixel into two sub-pixels to form separate wires for applying different signals thereto, and the amount of data to be processed at the driver for driving the display device is reduced. Furthermore, a pixel is bisected into two sub-pixels with variable capacitors in a simplified manner, and it is not required to form additional wires and elements, so the aperture ratio is enhanced.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: January 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Chul Goh, Kwang-Chul Jung, Chong-Chul Chai, Mee-Hye Jung, Young-Soo Yoon
  • Publication number: 20120306730
    Abstract: A display substrate includes a driving element, a switching element, a gate line, a data line, a driving voltage line and an electroluminescent element. The driving element includes a driving control electrode formed from a first conductive layer, and a driving input electrode and a driving output electrode formed from a second conductive layer. The switching element includes a switching control electrode formed from the second conductive layer, and a switching input electrode and a switching output electrode formed from a third conductive layer. The gate and data lines are formed from the second and third conductive layers, respectively. The driving voltage line is formed from the third conductive layer. Thus, misalignment between upper and lower patterns may be prevented to improve the reliability of a manufacturing process and increase an aperture ratio, thereby enhancing display quality.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Inventors: Kwang-Chul JUNG, Baek-Woon LEE, Joon-Chul GOH
  • Patent number: 8325287
    Abstract: A liquid crystal display includes a gate line, a data line crossing the gate line and insulated from the gate line, a common voltage line separated from the gate line and the data line, where the common voltage line transfers a predetermined voltage, a first switching element connected to the gate line and the data line, a second switching element connected to the gate line and the data line, a first liquid crystal capacitor connected to the first switching element, a second liquid crystal capacitor connected to the second switching element and at least two decompressing switching elements connected to the second switching element and the common voltage line.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: December 4, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Chong-Chul Chai, Joon-Chul Goh, Young-Soo Yoon
  • Publication number: 20120293736
    Abstract: A display apparatus includes a plurality of pixels. At least one of the pixels includes a gate line, a data line, a first storage line spaced apart from the gate line, a second storage line spaced apart from the gate line and the first storage line, first and second switching devices electrically connected to the gate line and the data line, a first liquid crystal capacitor connected to the first switching device and including the liquid crystal layer as its dielectric substance, a second liquid crystal capacitor connected to the second switching device and including the liquid crystal layer as its dielectric substance, a first storage capacitor connected between the first switching device and one of the first and second storage lines, and a second storage capacitor connected between the second switching device and a remaining one of the first and second storage lines.
    Type: Application
    Filed: November 28, 2011
    Publication date: November 22, 2012
    Inventors: KWANG-CHUL JUNG, Chongchul Chai, Kyoungju Shin, Joon-Chul Goh, Young-Soo Yoon
  • Patent number: 8314758
    Abstract: Embodiments of the present invention relate to a display device. In an embodiment, the display device includes a scanning signal line for transferring a scanning signal, a data line crossing the scanning signal line and transferring a data voltage, a switching transistor connected to the scanning signal line and the data line, a driving transistor connected to the switching transistor, a first transistor connected between the driving transistor and a driving voltage terminal, and a light-emitting element connected between the driving transistor and a common voltage terminal. The first transistor operates in a saturation region, and the driving transistor operates in a linear region. In this way, display characteristics may be improved by reducing deviation of a driving current due to deviation of characteristics of a driving transistor or a driving voltage.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 20, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Chul Goh, Chong-Chul Chai, Young-Soo Yoon, Sei-Hyoung Jo
  • Patent number: 8284149
    Abstract: An output part outputs a high voltage of a first clock signal as a high voltage of an (m)-th gate signal (‘m’ is a natural number) and a low voltage in response to a high signal of an (m+1)-th gate signal outputted from an (m+1)-th stage. A first maintenance part maintains a control part of the pull-up part at a low voltage in response to an (m?1)-th node signal or an (m+1)-th node signal lower than a high signal of a second clock signal having a phase opposite to the phase of the first clock signal received from an (m?1)-th stage or the (m+1)-th stage. A second maintenance part maintains the low voltage of the (m)-th gate signal in response to the (m?1)-th node signal or the (m+1)-th node signal.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: October 9, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Wan Yoon, Joon-Chul Goh, Chong-Chul Chai, Young-Soo Yoon, Sei-Hyoung Jo
  • Patent number: 8268681
    Abstract: A display substrate includes a driving element, a switching element, a gate line, a data line, a driving voltage line and an electroluminescent element. The driving element includes a driving control electrode formed from a first conductive layer, and a driving input electrode and a driving output electrode formed from a second conductive layer. The switching element includes a switching control electrode formed from the second conductive layer, and a switching input electrode and a switching output electrode formed from a third conductive layer. The gate and data lines are formed from the second and third conductive layers, respectively. The driving voltage line is formed from the third conductive layer. Thus, misalignment between upper and lower patterns may be prevented to improve the reliability of a manufacturing process and increase an aperture ratio, thereby enhancing display quality.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Chul Jung, Baek-Woon Lee, Joon-Chul Goh
  • Publication number: 20120182513
    Abstract: A liquid crystal display includes: a first substrate having pixels, each pixel including a display area and a non-display area; a second substrate facing the first substrate and including a common electrode; and a liquid crystal layer disposed between the first substrate and the second substrate. Each pixel includes a first transistor, a second transistor, a main pixel electrode having a first connection part electrically connected to the first transistor, and a sub-pixel electrode having a second connection part electrically connected to the second transistor. The first and second connection parts are disposed in the non-display area. A protective layer is disposed between the first connection parts the first transistors and between second connection parts and the second transistors.
    Type: Application
    Filed: June 17, 2011
    Publication date: July 19, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Sun KIM, Seongyoung LEE, Chongchul CHAI, Joon-Chul GOH, Young-Soo YOON
  • Patent number: 8208083
    Abstract: A mother substrate for a liquid crystal display panel includes a plurality of antistatic circuits connected with driving signal lines, respectively, and a plurality of switching circuits interposed between adjacent antistatic circuits of the antistatic circuits, respectively. Each switching circuit is controllable to electrically interconnect the adjacent antistatic circuits to one another when an inspection of a post-production available area is performed, and to electrically isolate the adjacent antistatic circuits from one another when a normal operation of the post-production available area is performed.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: June 26, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Soo Yoon, Joon-Chul Goh
  • Publication number: 20120147310
    Abstract: Provided are a thin-film transistor (TFT) display panel in which grayscale inversion at sides of the TFT display panel is controlled to improve color at sides thereof due to the shifting of chromaticity coordinates, and a liquid crystal display (LCD) including the TFT display panel. The TFT display panel includes a first pixel electrode corresponding to a first pixel, a second pixel electrode corresponding to a second pixel, and a third pixel electrode corresponding to a third pixel, wherein each of the first through third pixel electrodes includes a first subpixel electrode and a second subpixel electrode which receive different data voltages from the data lines, and saw-toothed fine patterns are formed on oblique edges of the first subpixel electrode of the first pixel electrode.
    Type: Application
    Filed: October 4, 2011
    Publication date: June 14, 2012
    Inventors: Seong-Young Lee, Jae-Ho Choi, Joon-Chul Goh, Young-Soo Yoon
  • Publication number: 20120044434
    Abstract: An exemplary embodiment of the present invention discloses a display substrate including a pixel connected to a first gate line and a data line. The pixel includes a first sub-pixel including a first liquid crystal capacitor and a first switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the first liquid crystal capacitor. The pixel also includes a second sub-pixel including a second liquid crystal capacitor and a second switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the second liquid crystal capacitor. The pixel further includes a controller including a control capacitor and a control switching element, the control switching element connected between a terminal of the control capacitor and the drain electrode of the second switching element.
    Type: Application
    Filed: April 6, 2011
    Publication date: February 23, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soo-Wan YOON, Joon-Chul GOH, Eun-Guk LEE, Young-Soo YOON, Dong-Yoon KIM, Byung-Duk YANG
  • Publication number: 20110310075
    Abstract: A liquid crystal display includes a gate line; a data line intersecting and insulated from the gate line; a common voltage line separated from the gate line and the data line to transfer a predetermined voltage; a first switching element connected to the gate line and the data line; a second switching element connected to the gate line and the data line; a first liquid crystal capacitor connected to the first switching element; a second liquid crystal capacitor connected to the second switching element; a third switching element that includes an input terminal connected to the second switching element, a floated control terminal, and an output terminal; and a third capacitor connected to the third switching element and the common voltage line.
    Type: Application
    Filed: December 10, 2010
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-Chul GOH, Chong-Chul CHAI, Seong-Young LEE, Kwang-Chul JUNG, Young-Soo YOON
  • Publication number: 20110304789
    Abstract: A liquid crystal display includes a gate line, a data line crossing the gate line and insulated from the gate line, a common voltage line separated from the gate line and the data line, where the common voltage line transfers a predetermined voltage, a first switching element connected to the gate line and the data line, a second switching element connected to the gate line and the data line, a first liquid crystal capacitor connected to the first switching element, a second liquid crystal capacitor connected to the second switching element and at least two decompressing switching elements connected to the second switching element and the common voltage line.
    Type: Application
    Filed: January 7, 2011
    Publication date: December 15, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Chul JUNG, Chong-Chul CHAI, Joon-Chul GOH, Young-Soo YOON
  • Patent number: 8072150
    Abstract: A display device, comprising: an insulating substrate; a light sensor which includes a semiconductor layer disposed in a first region and a sensor input terminal and a sensor output terminal electrically connected with the semiconductor layer, and is formed on the insulating substrate; a first electrode, an organic light emitting layer and a second electrode which are sequentially formed on the light sensor; a color filter which is disposed between the insulating substrate and the first electrode, and is formed in a second region that is different from the first region; and a controller which controls a data voltage supplied to one of the first electrode and the second electrode based on an output of the light sensor.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: December 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-soo Yoon, Joon-chul Goh, Chong-chul Chai, Kwang-chul Jung
  • Patent number: 8063853
    Abstract: An organic light emitting diode (OLED) display includes a first pixel including a first light emitting diode, a first driving transistor connected to the first light emitting diode and having a first terminal, a second terminal, and a third terminal, and a first storage capacitor connected between the first terminal and the second terminal of the first driving transistor, and a second pixel including a second light emitting diode, a second driving transistor connected to the second light emitting diode and having a first terminal, a second terminal, and a third terminal, and a second storage capacitor connected between the first terminal and the second terminal of the second driving transistor, wherein the first storage capacitor has a different capacitance than the second storage capacitor.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 22, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Chul Jung, Beohm-Rock Choi, Joon-Chul Goh
  • Publication number: 20110261028
    Abstract: A liquid crystal display comprising a plurality of pixels, each pixel of the plurality of pixels comprises a gate line which receives a gate signal; a data line which receives a data voltage; a first sub-pixel comprising a first transistor connected to the gate line and the data line, wherein the first transistor outputs the data voltage in response to the gate signal; and a first liquid crystal capacitor connected to the first transistor, wherein the first liquid crystal capacitor receives the data voltage output from the first transistor; a second sub-pixel comprising a second transistor connected to the gate line and the data line, wherein the second transistor outputs the data voltage in response to the gate signal; and a second liquid crystal capacitor connected to the second transistor, wherein the second liquid crystal capacitor receives the data voltage output from the second transistor; a resistor connected to the second transistor, wherein the resistor receives the data voltage output from the secon
    Type: Application
    Filed: September 13, 2010
    Publication date: October 27, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-Chul GOH, Young-Soo YOON, Soo-Wan YOON, Chongchul CHAI
  • Patent number: 8045079
    Abstract: A display device which includes a substrate, a gate line formed on the substrate, a data line intersecting the gate line, and a thin film transistor having a gate electrode connected to the gate line, a source electrode which overlaps the gate electrode and is connected to the data line, and a drain electrode which overlaps the gate electrode. The overlapping area between the gate electrode and the drain electrode is larger than the overlapping area between the gate electrode and the source electrode.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Chul Jung, Mee-Hye Jung, Joon-Chul Goh, Chong-Chul Chai
  • Patent number: 8030842
    Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong