Patents by Inventor Hyungkyu Kim

Hyungkyu Kim 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: 10067367
    Abstract: A light guide plate, a backlight module, a liquid crystal display module and a liquid crystal display device are disclosed. The light guide plate comprises a light-guide-plate body and a protecting frame. The light-guide-plate body comprises a light-exiting surface and a light-transmitting surface that are opposite to each other, and a plurality of side surfaces connecting the light-exiting surface with the light-transmitting surface. The protecting frame comprises a vertical wall and a horizontal wall extending from the vertical wall to an inner side of the protecting frame. The horizontal wall comprises a first contact surface which is attached to an edge of the light-exiting surface. The vertical wall comprises a second contact surface which is connected with the first contact surface, and the second contact surface is attached to side surfaces of the light-guide-plate body.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: September 4, 2018
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yufei Liu, Changchun Wei, Wenfeng Jin, Ming Zhai, Hyungkyu Kim
  • Publication number: 20180242529
    Abstract: An intelligent container is provided. The container includes a body; and a light-emitting device disposed on the body. The light-emitting device includes at least one light-emitting unit, the light-emitting unit being configured to emit light towards the inside of the body and the outside of the body. The light-emitting unit of the intelligent container can emit light bidirectionally to provide a light source for a plant therein in the growth process of the plant, and simultaneously provide an illumination to the outside.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 30, 2018
    Applicants: BOE Technology Group Co., Ltd., BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Ting Tian, Jinge Zhao, Dayong Zhou, Shuqian Dou, Jinshan Liu, Ming Zhai, Liguang Deng, Tae Sung Kang, Hyungkyu Kim
  • Patent number: 9997097
    Abstract: Provided are a Gamma reference voltage generating device and a display. The Gamma reference voltage generating device comprises a Gamma reference voltage source and a Gamma reference voltage converting module, the Gamma reference voltage source being connected to the Gamma reference voltage converting module and configured to provide Gamma reference voltages, wherein the Gamma reference voltage generating device further comprises at least one temperature compensation circuit which is connected to the Gamma reference voltage converting module and configured to automatically adjust output voltages according to temperature change to compensate the Gamma reference voltages output by the Gamma reference voltage source through the Gamma reference voltage converting module. The display comprises the above Gamma reference voltage generating device, and thus can avoid poor display due to temperature influences.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 12, 2018
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Huijuan Chen, Hyungkyu Kim, Qian Wang
  • Patent number: 9983350
    Abstract: A backlight module and a liquid crystal display device, the backlight module comprises a back plate (101) and a fixing frame (102) firmly connected with the back plate (101), and further comprises a light guide plate (106); the fixing frame (102) is provided with a protrusion (111) extending towards an inner side of the backlight module, the light guide plate (106) extends into a region under the protrusion (111) of the fixing frame (102) and is pressed by the protrusion (111); the light guide plate (106) is provided with a lamp fixing hole (112) configured to fix a lamp. A liquid crystal display device comprising the backlight module is further disclosed.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 29, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Caizheng Zhang, Jingshi Li, Hyungkyu Kim
  • Patent number: 9978330
    Abstract: The embodiment of the present invention provides a display driving method relating to the field of display, which can reduce the coupling effect due to the rapid changes of the voltage on the gate line and improve stability of display. The display driving method uses overlapping scan mode, wherein in the display panel two gate lines are arranged between two rows of pixel units for driving the two rows of pixel units respectively, the display driving method comprising: providing a switching voltage signal to the odd gate lines in the gate line group sequentially; providing a switching voltage signal to the even gate lines in the gate line group sequentially; and wherein for every two adjacent gate lines, when the switching voltage signal on an odd gate line has a falling edge, the switching voltage signal on an adjacent even gate line has a rising edge.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: May 22, 2018
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Rui Liu, Hao Zhang, Xue Dong, Hyungkyu Kim, Xiaobo Xie
  • Patent number: 9807209
    Abstract: A mobile terminal, including: a main body in which a semicircle-shaped, cell chamber with an opened end is provided, wherein one inner side of the cell chamber is provided with a plurality of groups of electrode contacts, and the other inner side of the cell chamber is provided with a plurality of sliding tracks at locations corresponding to the plurality of groups of electrode contacts, respectively; and a semicircle-shaped cell having one side provided with a plurality of groups of electrodes configured to be engaged with the electrodes, and the other side provided with a plurality of positioning tracks configured to be engaged with the sliding tracks. The mobile terminal allows replacing a cell in a switched-on state without opening a back cover of the main body.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 31, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chao Yu, Rui Liu, Hao Zhang, Hyungkyu Kim
  • Patent number: 9767744
    Abstract: The present invention provides a polarity inversion driving method for a liquid crystal display panel. The polarity inversion driving method comprises a step of performing polarity inversion on groups of pixel units according to a preset period, wherein each group of pixel units comprises rows of pixel units sequentially arranged in a same column, and a gate on-state duration of the first row of pixel unit in each group of pixel units is longer than the gate on-state duration of the remaining rows of pixel units in the group of pixel units. Correspondingly, the present invention further provides a polarity inversion driving device for a liquid crystal display panel. According to the present invention, when N-dot inversion driving is performed on the liquid crystal panel, charging times of respective rows of pixel units in each group of pixel units are closer.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: September 19, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liguang Deng, Hyungkyu Kim, Hao Zhang, Rui Liu, Yingming Liu
  • Publication number: 20170193952
    Abstract: The embodiment of the present invention provides a display driving method relating to the field of display, which can reduce the coupling effect due to the rapid changes of the voltage on the gate line and improve stability of display. The display driving method uses overlapping scan mode, wherein in the display panel two gate lines are arranged between two rows of pixel units for driving the two rows of pixel units respectively, the display driving method comprising: providing a switching voltage signal to the odd gate lines in the gate line group sequentially; providing a switching voltage signal to the even gate lines in the gate line group sequentially; and wherein for every two adjacent gate lines, when the switching voltage signal on an odd gate line has a falling edge, the switching voltage signal on an adjacent even gate line has a rising edge.
    Type: Application
    Filed: March 20, 2017
    Publication date: July 6, 2017
    Inventors: RUI LIU, Hao Zhang, Xue Dong, Hyungkyu Kim, Xiaobo Xie
  • Patent number: 9678265
    Abstract: A light guide plate, a backlight module and a display device employing the same. The light guide plate is configured to guide light emitted from an LED lamp on an LED lamp strip, and a light incident surface of a side portion of the light guide plate is provided with an indentation; when the LED lamp is locked in the indentation, a light emitting center line of the LED lamp coincides a light incident center line of the light guide plate. The backlight module includes a light guide plate, and the display device includes the above backlight module.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: June 13, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Caizheng Zhang, Jingshi Li, Hyungkyu Kim
  • Patent number: 9666145
    Abstract: The present disclosure provides a method for controlling brightness compensation for pixel units of a display device, comprising: driving white subpixels in the pixel units to compensate the pixel units for the brightness according to predetermined pixel units whose brightness is to be compensated for in the display device and compensating grayscale voltages corresponding to the brightness of the pixel units to be compensated.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 30, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huijuan Chen, Hyungkyu Kim, Duo Zhang, Yang Chen
  • Publication number: 20170140691
    Abstract: The present invention provides a display method and a display panel. The display panel comprises a plurality of rows of sub-pixels, the adjacent sub-pixels in the column direction having different colors and being staggered from each other by ½ of the sub-pixel in the row direction. The display method comprises: S1, generating an original image composed of a matrix of virtual pixels; S2, enabling the virtual pixels to correspond to sampling locations, wherein two sampling locations are further included between two sampling locations corresponding to any two adjacent virtual pixels; the sampling locations corresponding to the virtual pixels are in the same columns, wherein each sampling location is located between every two adjacent rows of the sub-pixels; and S3, calculating a display component of each sub-pixel in accordance with original components of corresponding colors of virtual pixels corresponding to the sub-pixel. The present invention is suitable for high resolution display.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 18, 2017
    Inventors: Lingyun SHI, Xue DONG, Hyungkyu KIM, Haiwei SUN, Hao ZHANG
  • Patent number: 9640123
    Abstract: The embodiment of the present invention provides a display driving method which can reduce the coupling effect due to the rapid changes of the voltage on the gate line and improve stability of display. The display driving method uses an overlapping scan mode, wherein every two rows of pixel units have two gate lines, the two gate lines drive the pixel units connected thereto respectively, each gate line group including N pairs of adjacent two gate lines, N being a natural number, said driving method comprising: providing a switching voltage signal to the odd gate lines in the gate line group sequentially; and providing a switching voltage signal to the even gate lines in the gate line group sequentially; wherein when the switching voltage signal on the odd gate lines is in the falling edge, the switching voltage signal on the even gate lines is in the rising edge.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 2, 2017
    Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Rui Liu, Hao Zhang, Xue Dong, Hyungkyu Kim, Xiaobo Xie
  • Publication number: 20170004792
    Abstract: A driving method is provided to drive an LCD panel having rows of pixels includes obtaining source data signals of a plurality of frames for the LCD panel; inputting a source data signal of one frame of the plurality of frames; and inverting polarity of the source data signal of the one frame before scanning sequentially the rows of pixels. The driving method also includes configuring at least one of timing of the source data signal and timing of scanning a first row of the rows of pixels to cause a time overlap between an actual scanning time of the first row and a time period when the source data signal is at a threshold value to be no less than an original scanning time of the first row; scanning the first row of the rows of pixels; and scanning rest of the rows of pixels to complete displaying the one frame.
    Type: Application
    Filed: August 14, 2015
    Publication date: January 5, 2017
    Applicants: BOE TECHNOLOGY GROUP CO. LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: LIGUANG DENG, ZHEN CHEN, HYUNGKYU KIM, MOYU ZHU, YINGMING LIU, JUN CHENG, MING ZHAI
  • Publication number: 20160327733
    Abstract: A light guide plate, a backlight module, a liquid crystal display module and a liquid crystal display device are disclosed. The light guide plate comprises a light-guide-plate body and a protecting frame. The light-guide-plate body comprises a light-exiting surface and a light-transmitting surface that are opposite to each other, and a plurality of side surfaces connecting the light-exiting surface with the light-transmitting surface. The protecting frame comprises a vertical wall and a horizontal wall extending from the vertical wall to an inner side of the protecting frame. The horizontal wall comprises a first contact surface which is attached to an edge of the light-exiting surface. The vertical wall comprises a second contact surface which is connected with the first contact surface, and the second contact surface is attached to side surfaces of the light-guide-plate body.
    Type: Application
    Filed: June 26, 2015
    Publication date: November 10, 2016
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yufei Liu, Changchun Wei, Wenfeng Jin, Ming Zhai, Hyungkyu Kim
  • Patent number: 9466256
    Abstract: The present disclosure relates to a gamma voltage generating circuit, a controlling method thereof and a liquid crystal display. The gamma voltage generating circuit comprises an output end, a first reference voltage input end, a second reference voltage input end, a pre-stage voltage-dividing circuit, and a post-stage voltage-dividing circuit. A first pre-stage output end of the pre-stage voltage-dividing circuit is coupled to a first post-stage input end, and a second pre-stage output end is coupled to a second post-stage input end, so as to divide reference voltages input from the first and second reference voltage input ends, thereby to generate a primary gamma voltage. A post-stage output end of the post-stage voltage-dividing circuit is coupled to the output end of the gamma voltage generating circuit, so as to divide the primary gamma voltage, thereby to generate a secondary gamma voltage.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: October 11, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qian Wang, Hyungkyu Kim
  • Publication number: 20160282689
    Abstract: A liquid crystal display panel and a display device are provided, and in the liquid crystal display panel, a common electrode is divided into a plurality of sub-common electrodes (01) arranged side by side in the extending direction of the gate lines; different common electrode signals are applied to the plurality sub-common electrodes (01), and their voltage magnitudes gradually increase in a transmitting direction of gate signals over the gate lines. Therefore, the inconsistency of the offsets ?Vp in the voltages of individual pixel electrodes in the entire liquid crystal display panel caused by the delay due to resistance and capacitance is compensated for by the voltages on the sub-common electrodes (01), so as to improve the picture quality of the liquid crystal display panel.
    Type: Application
    Filed: June 30, 2014
    Publication date: September 29, 2016
    Inventors: Hao Zhang, Hyungkyu Kim, Wei Sun
  • Publication number: 20160282536
    Abstract: A light guide plate, a backlight module and a display device employing the same. The light guide plate is configured to guide light emitted from an LED lamp on an LED lamp strip, and a light incident surface of a side portion of the light guide plate is provided with an indentation; when the LED lamp is locked in the indentation, a light emitting center line of the LED lamp coincides a light incident center line of the light guide plate. The backlight module includes a light guide plate, and the display device includes the above backlight module.
    Type: Application
    Filed: November 28, 2013
    Publication date: September 29, 2016
    Inventors: Caizheng ZHANG, Jingshi LI, Hyungkyu KIM
  • Publication number: 20160268079
    Abstract: A controller for confirming the contact status of a latch relay embedded in an electric power meter according to the invention includes a microcomputer unit that is electrically connected to the latch relay for reading and providing the contact switching status information of the latch relay during a power failure, and read the contact switching status information stored during the power failure when a power recovers, and configured to output an opening control signal to the latch relay when the read contact switching status is an open state, and configured to output a closing control signal to the latch relay when the read contact switching status is a closed state; and a non-volatile memory that stores the contact switching status information of the latch relay provided by the microcomputer unit or provides the contact switching status information of the latch relay to the microcomputer unit during a power failure.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 15, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Hyungkyu KIM
  • Patent number: 9437128
    Abstract: A display substrate and a driving method thereof and a display device are provided. The display substrate includes two types of pixel rows arranged alternately and repeatedly. In one type of pixel row, a second sub-pixel, a third sub-pixel, a second sub-pixel, a first sub-pixel and a third sub-pixel are arranged successively and repeatedly. In the other type of pixel row, a third sub-pixel, a first sub-pixel, a second sub-pixel, a third sub-pixel and a second sub-pixel are arranged successively and repeatedly. A center line of any sub-pixel in a column direction in a pixel row does not coincide with a center line of any sub-pixel in the column direction in an adjacent pixel row.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: September 6, 2016
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Kai Yang, Xue Dong, Hyungkyu Kim, Haiwei Sun, Hao Zhang, Lingyun Shi, Renwei Guo, Peng Liu
  • Publication number: 20160249043
    Abstract: The present disclosure provides 3D glasses, a 3D display system and a 3D display method. The 3D display system of the present disclosure includes a 3D display device and 3D glasses. The 3D glasses include: a 3D image presenting module configured to present a 3D image provided by a 3D display device to a user, a gesture information acquiring module configured to acquire gesture information of the user and supply the gesture information to a gesture information processing module, the gesture information processing module configured to generate processing information according to the gesture information and supply the processing information to an information transmitting module, and the information transmitting module configured to transmit the processing information to the 3D display device.
    Type: Application
    Filed: November 15, 2013
    Publication date: August 25, 2016
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liguang DENG, Xue DONG, Hao ZHANG, Hyungkyu KIM, Rui LIU, Yafeng DUAN