Patents by Inventor Soon-il Ahn

Soon-il Ahn 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: 10497305
    Abstract: An apparatus and method of preventing signal delay in a display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines overlap with the conductive member at a position outside a display area. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: December 3, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Il Ahn, Seung-Soo Baek, Seong-Young Lee, Kee-Bum Park
  • Publication number: 20170124945
    Abstract: A display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines are disposed at a position outside a region of overlap of the conductive member. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Application
    Filed: January 18, 2017
    Publication date: May 4, 2017
    Inventors: Soon-Il AHN, Seung-Soo BAEK, Seong-Young LEE, Kee-Bum PARK
  • Patent number: 9588388
    Abstract: An apparatus and method of preventing signal delay in a display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines and the conductive member do not overlap. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Il Ahn, Seung-Soo Baek, Seong-Young Lee, Kee-Bum Park
  • Patent number: 9153190
    Abstract: A gate driver that comprises n shift registers, wherein n is an integer equal to or larger than 1, each of the n shift registers includes; a start stage which outputs a gate signal and starts its operation in response to a start signal, and a plurality of subsequent stages which are connected to each other in sequence, and which sequentially output a plurality of gate signals in response to a signal output from the start stage, wherein at least one stage of the plurality of subsequent stages is reset by the start signal.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Il Ahn, Ho-Kyoon Kwon, Byoung-Sun Na, Dong-Hyon Ki, Seung-Soo Baek, Hye-Seok Na
  • Patent number: 9116405
    Abstract: A display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines are disposed at a position outside a region of overlap of the conductive member. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Il Ahn, Seung-Soo Baek, Seong-Young Lee, Kee-Bum Park
  • Patent number: 8755014
    Abstract: A thin film transistor array panel for a liquid crystal display, a liquid crystal display and a manufacturing method thereof are provided. The display panel includes: a substrate; and a first electrode portion disposed on the substrate, the first electrode portion having two pairs of main edges facing each other and a first cutout oblique to the main edges, wherein the main edges include first and second edges, the first electrode portion has an oblique edge substantially parallel to the first cutout, the oblique connecting the first edge and the second edge, the first edge includes a first portion extending from the oblique edge to an end of the first cutout, and the oblique edge is substantially equal to or longer than a half of the first portion of the first edge.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: June 17, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Il Ahn, You-Lee Song
  • Patent number: 8743304
    Abstract: A liquid crystal display includes a substrate including a longer first side and a shorter second side, a plurality of gate lines disposed on the substrate, a plurality of data lines disposed on the substrate perpendicular to and insulated from the gate lines, and a plurality of pixel electrodes, each pixel electrode electrically connected to a data line by a switching element, wherein a number of the gate lines is about half of a number of the pixel electrodes, and the data lines extend in a direction which is substantially parallel to a direction of the first side.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: June 3, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Jang Kim, Yeong-Keun Kwon, Soon-Il Ahn, Kyung-Ho Park
  • Publication number: 20140118654
    Abstract: A display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines are disposed at a position outside a region of overlap of the conductive member. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Soon-Il AHN, Seung-Soo BAEK, Seong-Young LEE, Kee-Bum PARK
  • Publication number: 20140118655
    Abstract: A display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines are disposed at a position outside a region of overlap of the conductive member. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Soon-Il AHN, Seung-Soo BAEK, Seong-Young LEE, Kee-Bum PARK
  • Patent number: 8711318
    Abstract: An apparatus and method of preventing signal delay in display device according to the present invention includes a first substrate, a driving portion formed on the first substrate, a plurality of signal lines formed on the first substrate to transmit signals to the driving portion, a second substrate facing the first substrate, and a conductive member formed on the second substrate, wherein the driving portion overlaps with the conductive member, and the signal lines and the conductive member do not overlap. Accordingly, the capacitances between the signal lines may be substantially the same.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Il Ahn, Seung-Soo Baek, Seong-Young Lee, Kee-Bum Park
  • Patent number: 8228282
    Abstract: In a gate driving circuit and a display apparatus having the gate driving circuit, a pull-up transistor of a present stage among plural stages, which are connected one after another to each other and sequentially output a gate signal, pulls up a present gate signal output through an output terminal to a gate-on voltage. A buffer transistor is connected to a control terminal of the pull-up transistor to receive a previous output signal from a previous stage and to turn on the pull-up transistor. The buffer transistor has a chargeability that is about two times or greater than the chargeability of the pull-up transistor. Thus, the size of the pull-up transistor may be reduced, thereby preventing a malfunction of the gate driving circuit when the gate driving circuit is operated under conditions of high temperature or low temperature.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung-Sun Na, Dong-Hyeon Ki, Min-Cheol Lee, Soon-Il Ahn
  • Patent number: 8027004
    Abstract: A liquid crystal display according to an embodiment of the invention includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines formed on the substrate to intersect the gate lines, and a plurality of pixel electrodes formed on the substrate. In the liquid crystal display, the pixel electrode includes a first main side substantially parallel with the gate line, a second main side substantially parallel with the data line, a first oblique side making a first oblique angle with respect to the first and second main sides, and a second oblique side making a second oblique angle with respect to the first and second main sides. The first oblique angle and the second oblique angle are different from each other.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: September 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hyun Kwon, Byoung-Sun Na, Dong-Hyeon Ki, Soon-Il Ahn
  • Patent number: 7864149
    Abstract: In a display panel, main and sub pixel electrodes are connected to first and second drain electrodes of a thin film transistor, respectively, to receive a data voltage during a 1 H period as main and sub pixel voltages. A main storage electrode overlaps the main pixel electrode to receive a first common voltage that varies with the gate pulse and the polarity of the data voltage. A sub storage electrode overlaps the sub pixel electrode to receive a second common voltage that is uniformly maintained at a constant voltage level. The sub pixel voltage is uniformly maintained by the second common voltage, but the main pixel voltage is shifted up or down by the first common voltage. Thus, the main pixel voltage may have a voltage level higher than that of the sub pixel voltage.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Byoung-Sun Na, Seung-Hoo Yoo, Soon-Il Ahn, Hyun-Cheol Moon, Hye-Ran You
  • Patent number: 7821003
    Abstract: Provided are a thin-film transistor (TFT) substrate and a display device having the same. In the TFT substrate and the display device having the same, first and second drain electrodes of first and second TFTs connected to first and second pixel electrodes, respectively, are vertically bent a plurality of times. The distance between each of the first and second source electrodes and the first or second drain electrode is maintained at a minimum interline gap to increase the distance between a data line and each of the first and second drain electrodes and minimize the length of a region of each of the first and second drain electrodes adjacent to the data line. Consequently, a coupling capacitance between the data line and each of the first and second drain electrodes can be reduced, and each unit pixel region can have a uniform parasite capacitance within a predetermined range. In addition, the luminance deviation of a display device, which performs inversion driving, can be reduced.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-Seok Na, Won-Hee Lee, Ho-Kyoon Kwon, Byoung-Sun Na, Soon-Il Ahn, Ji-Hyun Kwon
  • Publication number: 20100118221
    Abstract: A liquid crystal display includes a substrate including a longer first side and a shorter second side, a plurality of gate lines disposed on the substrate, a plurality of data lines disposed on the substrate perpendicular to and insulated from the gate lines, and a plurality of pixel electrodes, each pixel electrode electrically connected to a data line by a switching element, wherein a number of the gate lines is about half of a number of the pixel electrodes, and the data lines extend in a direction which is substantially parallel to a direction of the first side.
    Type: Application
    Filed: May 5, 2009
    Publication date: May 13, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Jang KIM, Yeong-Keun KWON, Soon-Il AHN, Kyung-Ho PARK
  • Publication number: 20100045884
    Abstract: A liquid crystal display according to an embodiment includes a gate line extending in a first direction, a data line intersecting the gate line and extending in a second direction, 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 subpixel electrode connected to the first switching element and having a first voltage, and a second subpixel electrode connected to the second switching element and having a second voltage. The difference between the first voltage and a common voltage is larger than the difference between the second voltage and the common voltage, and the shortest distance between the first subpixel electrode and the data line is larger than the shortest distance between the second subpixel electrode and the data line. Accordingly, a variation of luminance due to parasitic capacitance between the pixel electrode and the data line may be reduced, and the aperture ratio may be increased.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 25, 2010
    Inventors: Soon-Il AHN, Dong-Gyu KIM, Hye-Seok NA
  • Publication number: 20100007653
    Abstract: A gate driver that comprises n shift registers, wherein n is an integer equal to or larger than 1, each of the n shift registers includes; a start stage which outputs a gate signal and starts its operation in response to a start signal, and a plurality of subsequent stages which are connected to each other in sequence, and which sequentially output a plurality of gate signals in response to a signal output from the start stage, wherein at least one stage of the plurality of subsequent stages is reset by the start signal.
    Type: Application
    Filed: December 12, 2008
    Publication date: January 14, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Soon-Il AHN, Ho-Kyoon KWON, Byoung-Sun NA, Dong-Hyon KI, Seung-Soo BAEK, Hye-Seok NA
  • Patent number: 7595207
    Abstract: To improve product yield, light is scanned on a layer on a substrate through a mask. A pattern is formed on the substrate by the exposure of the layer. The direction of scanning is substantially perpendicular to a longitudinal direction of the pattern. The capacitance difference due to coupling of the pattern to be formed and a conductive layer formed through an insulation layer is reduced. Thus, failures of a display device are reduced and the product yield is increased.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: September 29, 2009
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Soon-Il Ahn, Byoung-Sun Na, Jeong-Young Lee, You-Lee Song
  • Publication number: 20090230396
    Abstract: Provided are a thin-film transistor (TFT) substrate and a display device having the same. In the TFT substrate and the display device having the same, first and second drain electrodes of first and second TFTs connected to first and second pixel electrodes, respectively, are vertically bent a plurality of times. The distance between each of the first and second source electrodes and the first or second drain electrode is maintained at a minimum interline gap to increase the distance between a data line and each of the first and second drain electrodes and minimize the length of a region of each of the first and second drain electrodes adjacent to the data line. Consequently, a coupling capacitance between the data line and each of the first and second drain electrodes can be reduced, and each unit pixel region can have a uniform parasite capacitance within a predetermined range. In addition, the luminance deviation of a display device, which performs inversion driving, can be reduced.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 17, 2009
    Inventors: Hye-Seok NA, Won- Hee Lee, Ho-Kyoon Kwon, Byoung-Sun Na, Soon-Il Ahn, Ji-Hyun Kwon
  • Publication number: 20090189839
    Abstract: A liquid crystal display including a liquid crystal display panel having a display area that displays an image in response to a gate signal and a data signal, and a peripheral area including first, second, third and fourth peripheral areas surrounding the display area; a plurality of gate drivers performing a scanning operating in response to a first control signal to output the gate signal, the gate drivers being arranged in the first peripheral area; a plurality of data drivers arranged in the second peripheral area adjacent to a gate driver that last performs the scanning operating among the gate drivers; and a signal transmission line connected to a gate driver that first performs the scanning operation among the gate drivers, and routed through the third and fourth peripheral areas opposite to the first and second peripheral areas, respectively, to provide the first control signal to the gate drivers.
    Type: Application
    Filed: December 2, 2008
    Publication date: July 30, 2009
    Inventors: GWANG BUM KO, Byoung-Sun Na, Won-Hee Lee, Ho-Kyoon Kwon, Soon-Il Ahn, Ji-Hyun Kwon, Hye-Seok Na