Patents by Inventor Yoon-Sung Um

Yoon-Sung Um 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: 9971217
    Abstract: The present disclosure relates to an array substrate and manufacturing method for the same, and a display device. The array substrate comprises a plurality of pixel regions, a plurality of gate lines, and a plurality of data lines. The gate line and the data line are respectively connected to corresponding pixel regions. The pixel region comprises a common electrode and a pixel electrode arranged correspondingly. The array substrate also comprises a plurality of shield electrodes. The shield electrode is arranged to shield an electric field generated by a current flowing through the corresponding gate line. The shield electrode and the common electrode are arranged on the same layer and are insulated from each other. Since the shield electrode and the common electrode are insulated from each other, a change in the electrical signal in the shield electrode does not affect the common electrode.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 15, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yoon-Sung Um
  • Patent number: 9928798
    Abstract: A voltage control method and device for electrodes, wherein the method includes inputting a varying voltage signal to common electrodes on an array substrate. The solution of the present application may avoid the problem of greenish picture of products due to influence of data line voltage on common electrodes.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 27, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yoon Sung Um, Hyun Sic Choi, Zhiqiang Xu, Hui Li
  • Publication number: 20180082651
    Abstract: A display driving method, a display panel and a display device. In the display driving method, the voltage (Vgl) of a gate turning-off signal at least changes once during the period of applying the gate turning-off signal to each gate line (Gate 1, Gate 2, . . . ). A pixel voltage signal is varied as the gate turning-off signal changes. Thus, the variation frequency of the pixel voltage signal within the display time of each frame is increased by changing the gate turning-off signal within the display time of each frame, which is equivalent to increase the refreshing frequency, so that the human eyes cannot recognize flicker.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 22, 2018
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yoon Sung UM, Yu'e JIA, Kuanjun PENG, Yun Sik IM
  • Patent number: 9874795
    Abstract: An array substrate includes a substrate (10), a plurality of pixel regions (30) and a black matrix (15) separating the pixel regions (30) formed on the substrate (10); corresponding to a region where the black matrix (15) is located, the substrate (10) is provided with a thin film transistor. The pixel region (30) includes a first electrode (17) and a second electrode (20) configured for generating an electric field therebetween to drive liquid crystals. The second electrode (20) is disposed above the first electrode (17). The pixel region (30) further includes a color resist layer (16) disposed between a gate insulation layer (12) and the second electrode (20) and distributed in the pixel region (30). A method of manufacturing the array substrate and a display device are further disclosed.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 23, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Hui Li, Zhiqiang Xu, Yoon Sung Um
  • Publication number: 20180017730
    Abstract: The present disclosure relates to a light guide plate and a fabricating method thereof, an array substrate and a fabricating method thereof, and a display device. In the light guide plate provided in the present disclosure, in a region corresponding to a first display region for arranging a gate driven circuit, more net-dots are provided or the diameter of net-dots is set to be larger, such that the luminance of outgoing light from the light guide plate in this region can be increased, thereby weakening the luminance difference between the corresponding display region and other display region.
    Type: Application
    Filed: August 3, 2016
    Publication date: January 18, 2018
    Inventors: Shanshan Zhou, Yoon-Sung Um, Yuting Zhang
  • Patent number: 9842552
    Abstract: A data driving circuit comprises a plurality of driving units, each of the driving units comprising first, second, third and fourth switch units, each of the switch units comprising first and second input terminals and an output terminal; the output terminals being output terminals of the data driving circuit; two data control terminals, one of which is respectively connected to the first input terminals of the first switch unit and the second switch unit, the other of which is respectively connected to the first input terminals of the third switch unit and the fourth switch unit; a first switching control terminal, connected to the second input terminal of one of the switch units connected to the same data control terminal; a second switching control terminal, connected to the second input terminal of the other of the switch units connected to the same data control terminal.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 12, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Seung Woo Han, Yuanbo Zhang, Yoon Sung Um
  • Patent number: 9709846
    Abstract: A liquid crystal display (LCD) panel, an LCD and a manufacturing method thereof. The LCD panel comprises a first substrate (1) and a second substrate (2) arranged opposite to each other; a liquid crystal layer (3) is disposed between the first substrate (1) and the second substrate (2); the first substrate (1) comprises a plurality of pixel regions; each pixel region comprises a transmission section (4) and a reflection section (5); the first substrate is provided with a reflective layer (6) disposed in the reflection section (5); polymers (30) formed by polymerization of ultraviolet curable monomers are uniformly distributed in the liquid crystal layer (3) of the reflection section (5). The LCD panel adopts a single cell gap and controls the phase retardation amount of reflected light emitted out from the reflection section (5) through the polymers (30), so that phase of the reflected light can match with the phase of transmitted light emitted out from the transmission section (6).
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: July 18, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Hui Li, Zhiqiang Xu, Yoon Sung Um
  • Publication number: 20170199441
    Abstract: The present disclosure relates to an array substrate and manufacturing method for the same, and a display device. The array substrate comprises a plurality of pixel regions, a plurality of gate lines, and a plurality of data lines. The gate line and the data line are respectively connected to corresponding pixel regions. The pixel region comprises a common electrode and a pixel electrode arranged correspondingly. The array substrate also comprises a plurality of shield electrodes. The shield electrode is arranged to shield an electric field generated by a current flowing through the corresponding gate line. The shield electrode and the common electrode are arranged on the same layer and are insulated from each other. Since the shield electrode and the common electrode are insulated from each other, a change in the electrical signal in the shield electrode does not affect the common electrode.
    Type: Application
    Filed: February 25, 2016
    Publication date: July 13, 2017
    Inventor: Yoon-Sung UM
  • Publication number: 20170192155
    Abstract: The present disclosure relates to a light guide plate and a fabricating method thereof, an array substrate and a fabricating method thereof, and a display device. In the light guide plate provided in the present disclosure, in a region corresponding to a first display region for arranging a gate driven circuit, more net-dots are provided or the diameter of net-dots is set to be larger, such that the luminance of outgoing light from the light guide plate in this region can be increased, thereby weakening the luminance difference between the corresponding display region and other display region.
    Type: Application
    Filed: August 3, 2016
    Publication date: July 6, 2017
    Inventors: Shanshan Zhou, Yoon-Sung Um, Yuting Zhang
  • Publication number: 20170153511
    Abstract: An array substrate, a manufacturing method thereof and a display device are disclosed. The array substrate includes: a base substrate; a plurality of gate lines and a plurality of data lines disposed on the base substrate and configured to define a plurality of pixel regions; pixel electrodes and common electrodes disposed in each pixel region and arranged in different layers; and shielding electrodes being at least formed in regions corresponding to the data lines on the base substrate, being arranged in different layers from the common electrodes, and being not electrically connected with the pixel electrodes and the common electrodes.
    Type: Application
    Filed: April 12, 2016
    Publication date: June 1, 2017
    Inventors: Yoon Sung UM, Yun Sik IM, Hyun Sic CHOI, Hui LI, Yunyun TIAN
  • Publication number: 20170123276
    Abstract: An array substrate and a fabrication method thereof, and a display device are provided. The array substrate comprises a lining substrate and an electrode pattern formed on the lining substrate, and the electrode pattern includes a plurality of strip-shaped electrodes. There are a plurality of strip-shaped protrusions on an upper surface of the lining substrate, and at least part of strip-shaped electrodes among the plurality of strip-shaped electrodes are formed on the strip-shaped protrusions one-to-one; and there is an included angle between an extending direction of the strip-shaped electrodes and an extending direction of the strip-shaped protrusions, and the included angle is configured so that a rubbing direction of an alignment film is along the extending direction of the strip-shaped protrusions.
    Type: Application
    Filed: October 12, 2016
    Publication date: May 4, 2017
    Inventors: Yoon Sung Um, Yun Sik Im, Hyun Sic Choi, Hui Li, Jung Mok Jun
  • Patent number: 9588385
    Abstract: A liquid crystal display, including: a first substrate and a second substrate; a liquid crystal layer; a first data line disposed on the first substrate; a pixel electrode disposed on the first substrate; and a common electrode disposed on the first substrate and overlapping at least a portion of the pixel electrode and the first data line. One of the pixel electrode and the common electrode includes a plurality of branch electrodes spaced apart from each other and the other of has an at least approximately planar shape that is substantially parallel to a surface of at least one of the first substrate and the second substrate. The display can also include a passivation layer having a dielectric constant of about 3.5 or less, and including a first portion disposed between the common electrode and the first data line.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hoon Kim, Yoon-Sung Um, Joo-Seok Yeom
  • Patent number: 9513506
    Abstract: A transflective liquid crystal display panel, a display device, an array substrate, a color filter substrate and a fabrication method thereof are provided. The transflective liquid crystal display panel comprises a first substrate (11), a second substrate (21) arranged opposite to the first substrate (11), and a liquid crystal layer (31) disposed between the first substrate (11) and the second substrate (21). The liquid crystal display panel comprises a plurality of pixel units, each pixel unit comprises a transmissive region and a reflective region, and a thickness (d1) of the liquid crystal layer (31) in the transmissive region is equal to a thickness (d2) of the liquid crystal layer (31) in the reflective region. On a side facing the liquid crystal layer (31), the first substrate (11) is provided with a first common electrode (12) corresponding to the reflective region and the transmissive region and a second common electrode (15) corresponding to the transmissive region.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 6, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Hui Li, Zhiqiang Xu, Yoon Sung Um
  • Patent number: 9484465
    Abstract: A array substrate is disclosed. The array substrate includes: a substrate (10); and a first gate metal layer (111), a first gate insulating layer (121), a semiconductor layer (13) and a source-drain electrode layer (14) disposed in this order on the substrate from bottom to top. The array substrate (10) further includes a second gate insulating layer (122) disposed on the source-drain electrode layer (14); and a second gate metal layer (112) disposed on the second gate insulating layer (122). A method of manufacturing an array substrate is also disclosed.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 1, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Hui Li, Zhiqiang Xu, Yoon Sung Um
  • Patent number: 9466248
    Abstract: A LCD and a method of driving the LCD are provided. The LCD includes first and second gate lines extending in a first direction, a data line insulated from the first gate line and crossing the first gate line, a pixel electrode including first and second sub-pixel electrodes, the pixel electrode being disposed in a pixel having a long side in the first direction, a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode, a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode, and a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: October 11, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-ran You, Seung-beom Park, Yoon-sung Um, Jin-won Park, Hee-wook Do, Hoon Kim
  • Patent number: 9442333
    Abstract: A pixel electrode, an array substrate and a display device are configured to provide a display apparatus with higher transmittance. The pixel electrode includes at least one electrode unit, wherein the electrode unit includes a plurality of strip electrodes and has a non-closed shape.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: September 13, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Yoon Sung Um, Heecheol Kim, Hyun Sic Choi, Hui Li
  • Publication number: 20160247941
    Abstract: Disclosed is a thin film transistor, an array substrate and a display device. The thin film transistor includes: a gate, an active layer, a source and a drain disposed on a base substrate. The source and the drain are disposed oppositely and electrically connected with the active layer respectively, and the orthographic projection of the active layer region (a) corresponding to the gap between the source and the drain on the base substrate is in a bend shape. For the thin film transistor, the sharp increase of switch-off current can be avoided by increasing the length of the active layer region corresponding to the gap between the source and the drain without increasing the area occupied by TFT.
    Type: Application
    Filed: October 16, 2014
    Publication date: August 25, 2016
    Inventors: Yoon Sung UM, Xiaolin WANG, Xing YAO, Haiyan WANG
  • Patent number: 9323111
    Abstract: The present invention provides an array substrate, its manufacturing method, and a display device. The array substrate comprises a plurality of grid lines a plurality of data lines, and pixel regions defined by every two adjacent grid Fines and every two adjacent data lines. The pixel region is provided with a common electrode, a pixel electrode and a thin film transistor. The common electrode includes a first common electrode and a second common electrode which are powered independently. A projection of the first common electrode onto a layer where the data lines are located covers the data line, and a projection of the second common electrode onto a layer where the pixel electrode is located falls on the pixel electrode.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 26, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yoon-Sung Um, Hyun-Sic Choi, Zhiqiang Xu, Hui Li
  • Publication number: 20160042706
    Abstract: A data driving circuit comprises a plurality of driving units, each of the driving units comprising first, second, third and fourth switch units, each of the switch units comprising first and second input terminals and an output terminal; the output terminals being output terminals of the data driving circuit; two data control terminals, one of which is respectively connected to the first input terminals of the first switch unit and the second switch unit, the other of which is respectively connected to the first input terminals of the third switch unit and the fourth switch unit; a first switching control terminal, connected to the second input terminal of one of the switch units connected to the same data control terminal; a second switching control terminal, connected to the second input terminal of the other of the switch units connected to the same data control terminal.
    Type: Application
    Filed: May 28, 2014
    Publication date: February 11, 2016
    Inventors: Seung Woo HAN, Yuanbo ZHANG, Yoon Sung UM
  • Publication number: 20150325705
    Abstract: A array substrate is disclosed. The array substrate includes: a substrate (10); and a first gate metal layer (111), a first gate insulating layer (121), a semiconductor layer (13) and a source-drain electrode layer (14) disposed in this order on the substrate from bottom to top. The array substrate (10) further includes a second gate insulating layer (122) disposed on the source-drain electrode layer (14); and a second gate metal layer (112) disposed on the second gate insulating layer (122). A method of manufacturing an array substrate is also disclosed.
    Type: Application
    Filed: December 9, 2013
    Publication date: November 12, 2015
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hyun Sic CHOI, Hui LI, Zhiqiang XU, Yoon Sung UM