Patents by Inventor Hyun Sic Choi

Hyun Sic Choi 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: 20170358601
    Abstract: A display substrate, a manufacturing method thereof and a display device are provided, and the display substrate includes pixel units, each of the pixel units is provided with a thin film transistor, a pixel electrode and a common electrode; the pixel electrode and the common electrode are arranged in a same layer and insulated from each other, the pixel electrode includes a plurality of strip-shaped pixel sub-electrodes, the common electrode includes a plurality of strip-shaped common sub-electrodes, the plurality of strip-shaped pixel sub-electrodes (104) and the plurality of strip-shaped common sub-electrodes are alternately distributed, and an interval width between each pixel sub-electrode and each common sub-electrode adjacent to the pixel sub-electrode is from 1 ?m to 5 ?m. The display substrate is configured for solving the problem of low charging rate in large size display panels.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 14, 2017
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Heecheol Kim, Hyun Sic Choi
  • Publication number: 20170345516
    Abstract: A shift register unit and a control method thereof, a gate drive device including the shift register unit, and a display device. The shift register unit includes: an input module, a pull-up module, a first pull-down control signal generation module, controlling, in the period that a first signal is high level, potential of a first pull-down control node according to a drive input signal and potential of a pull-up control node; a second pull-down control signal generation module, controlling, in the period that a second signal is high level, potential of a second pull-down control node according to the drive input signal and the potential of the pull-up control node, the first signal and the second signal alternatively becoming high level; and a pull-down module, pulling down a drive output signal according to the potential of the first pull-down control node and the potential of the second pull-down control node.
    Type: Application
    Filed: September 28, 2016
    Publication date: November 30, 2017
    Inventors: Hyun Sic CHOI, Seung Woo HAN
  • Patent number: 9810912
    Abstract: A liquid crystal (LC) lens, a manufacturing method thereof and a display device are provided. The LC lens comprises a first substrate, a second substrate and a liquid crystal layer disposed between the first substrate and the second substrate. A plurality of electrode groups is disposed on the first substrate; each electrode group comprises a plurality of mutually insulated electrodes; and a transparent partition is disposed between two adjacent electrode groups. The LC lens can avoid LC disclination in the area between two adjacent strip electrode groups and hence avoid the influence of 3D display effect.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 7, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Qiangtao Wang, Hyun Sic Choi, Jing Lv, Zheng Fang
  • Patent number: 9746720
    Abstract: Embodiments of the present disclosure disclose an array substrate, a liquid crystal display panel and a display device. The array substrate comprises a base substrate and a thin film transistor provided on the base substrate, and the thin film transistor comprises a gate electrode, an active layer, a source electrode and a drain electrode. The array substrate further comprises: a common electrode provided above the thin film transistor, and a first pixel electrode and a second pixel electrode both electrically connected with the drain electrode of the thin film transistor. The first pixel electrode is provided below the common electrode and is insulated from the common electrode, and the second pixel electrode is provided above the common electrode and is insulated from the common electrode.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 29, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Heecheol Kim, Yun Sik Im
  • 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
  • Patent number: 9696582
    Abstract: The present invention provides an array substrate, a method for manufacturing the same, and a liquid crystal display panel. The array substrate includes a plurality of pixel units arranged in an array, each pixel unit comprising a reflection region and a transmission region, and for any pixel unit, the array substrate comprising a substrate; a thin film transistor provided on the substrate; and a reflection electrode and a first transparent electrode which are electrically connected with each other, the reflection electrode being located in the reflection region, and the first transparent electrode being located in the transmission region, wherein a first transparent insulation layer is provided between the reflection electrode and the first transparent electrode, and the reflection electrode is on a side of the first transparent insulation layer which is closer to the substrate.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: July 4, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Hyun Sic Choi, Hui Li, Zheng Fang, Haiyan Wang, Yunyun Tian
  • Publication number: 20170179439
    Abstract: The present application discloses a display device having a metal pattern on a substrate of a display device and a light absorbing layer positioned to absorb light reflected by the metal pattern, and a manufacturing method thereof. The light absorbing layer has a pattern corresponding to at least a portion of the metal pattern.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 22, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunyun Tian, Hyun Sic Choi
  • 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
  • Patent number: 9664971
    Abstract: The present disclosure provides an array substrate and a method for producing the same and a liquid crystal display apparatus. The array substrate provided by an embodiment of the present invention comprises: a base substrate; a plurality of sub-pixel regions which are delimited by gate lines and data lines respectively and which are located on the base substrate, each of which is provided with a thin film transistor TFT and a common electrode above the thin film transistor; and an alignment film located above the common electrode, wherein the alignment film has an alignment direction at a predetermined angle to the direction in which the gate lines extend, and a void region is arranged at a location of the common electrode corresponding to the thin film transistor, the direction in which the void region extends being identical to the alignment direction of the alignment film.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 30, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hui Li, Hyun Sic Choi, Zheng Fang, Haiyan Wang, 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
  • Publication number: 20160372499
    Abstract: A method of manufacturing an array substrate, a display substrate and a display device are disclosed. The method of manufacturing an array substrate comprises: forming a pattern of an active layer and a pattern of source and drain electrodes on a substrate; forming a pattern of a first transparent electrode and a pattern of a passivation layer through one single patterning process; and processing the substrate on which the pattern of the passivation layer having been formed, such that a material of the passivation layer fills at least partially in a gap in the pattern of the first transparent electrode. Through forming the pattern of the first transparent electrode and the passivation layer by one single patterning process, number of masks used in the manufacturing process of the array substrate is reduced.
    Type: Application
    Filed: July 28, 2015
    Publication date: December 22, 2016
    Inventors: Seung Jin CHOI, Hee Cheol KIM, Hyun Sic CHOI
  • Patent number: 9520422
    Abstract: An oxide thin film transistor and a manufacturing method thereof, an array substrate and a display device are provided. The method comprises: forming a gate electrode (1), a gate insulating layer (4) and an oxide semiconductor thin film (10) sequentially on a substrate; forming a first photoresist (11a) above an active layer region of the oxide semiconductor thin film (10), such that a thickness of the first photoresist above a channel region is greater than a thickness of the first photoresist above a non-channel region; reserving the first photoresist (11a) above the channel region; forming a source-drain metal thin film and a second photoresist (11b) sequentially on a pattern of an active layer, removing a portion of the source-drain metal thin film and a portion of the second photoresist (11b), such that an edge of the first photoresist (11a) above the channel region is covered with the source-drain metal thin film; and obtaining patterns of a source electrode and a drain electrode.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: December 13, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hyun Sic Choi, Yun Sik Im
  • Publication number: 20160357023
    Abstract: The present disclosure provides a liquid crystal lens and a display apparatus. The liquid crystal lens includes a first substrate and a second substrate arranged to be opposite to each other, a common electrode being provided on the second substrate; a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules; liquid crystal lens units, each of which includes a first group of strip-shaped electrodes and a second group of strip-shaped electrodes parallel to each other and spaced apart thereon, upon applying a voltage among the first and second groups, and the common electrode, a planoconvex lens is formed within the liquid crystal molecules between them, wherein each of the first and second groups includes layers of sub-electrodes insulated from each other, the sub-electrodes of the first and second groups are applied with a voltage, so as to adjust symmetry of the planoconvex lens.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 8, 2016
    Inventors: Haiyan WANG, Hui LI, Yunyun TIAN, Zheng FANG, Hyun-Sic CHOI
  • 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: 9507224
    Abstract: A display panel (01) is provided. The display panel (01) includes a first substrate (10) and a second substrate (20) bonded to each other, and electro-optic material (30) disposed between the first substrate (10) and the second substrate (20). The first substrate (10) includes a thin film transistor (101), a first electrode (102) and a second electrode (103). The second substrate (20) may comprise a resin layer and a plurality of conductive electrodes (202), the resin layer includes a plurality of color filters having different colors and arranged sequentially and alternately. Along a color changing direction of the color filters of the resin layer, at least a part (202a) of one conductive electrode (202) is disposed at an edge of at least one color filter. The conductive electrode (202) may be disposed above or under the resin layer. The conductive electrode (202) may be of the same potential with any one of the first electrode (102) and the second electrode (103).
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 29, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yunyun Tian, Hyun Sic Choi, Qiangtao Wang
  • Publication number: 20160342030
    Abstract: A liquid crystal display panel, a fabrication method thereof and a display device are provided. The liquid crystal display panel comprises: an opposed substrate (10) and an array substrate (20) arranged opposite to each other, and a liquid crystal layer (30) filled between the opposed substrate (10) and the array substrate (20). Alignment films (40) having opposite friction directions are provided on opposing surfaces of the opposed substrate (10) and the array substrate (20), respectively. The liquid crystal display panel has a plurality of pixel units which are arranged in array, and each of the pixel units comprises two pixel regions (A, B) along the friction direction of the alignment film.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 24, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heecheol KIM, Hyun Sic CHOI
  • 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
  • Publication number: 20160313565
    Abstract: A liquid crystal (LC) lens, a manufacturing method thereof and a display device are provided. The LC lens comprises a first substrate, a second substrate and a liquid crystal layer disposed between the first substrate and the second substrate. A plurality of electrode groups is disposed on the first substrate; each electrode group comprises a plurality of mutually insulated electrodes; and a transparent partition is disposed between two adjacent electrode groups. The LC lens can avoid LC disclination in the area between two adjacent strip electrode groups and hence avoid the influence of 3D display effect.
    Type: Application
    Filed: May 20, 2014
    Publication date: October 27, 2016
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Qiangtao WANG, Hyun Sic CHOI, Jing LV, Zheng FANG
  • Publication number: 20160268316
    Abstract: An array substrate and a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate (1), a gate line (2), a data line (3), and a thin film transistor (10), which are formed on the base substrate (1); a first planarization layer (5), formed on the base substrate (1), the gate line (2), the data line (11) and the thin film transistor (10), a via hole (12) being formed in the first planarization layer (5), and part of a region of the via hole (12) being corresponding to a drain electrode (4) of the thin film transistor (10); a first electrode (7), formed on the first planarization layer (5) and in the via hole (12), the first electrode being connected with the drain electrode (4); a passivation layer (8), formed on the first electrode (7); and a second electrode (9), formed on the passivation layer (8).
    Type: Application
    Filed: December 1, 2014
    Publication date: September 15, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heecheol KIM, Hyun Sic CHOI
  • 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