Patents by Inventor Ji Young Ahn

Ji Young 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).

  • Publication number: 20150349028
    Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
  • Patent number: 9134563
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 15, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Ji-Young Ahn
  • Patent number: 9105214
    Abstract: Disclosed herein are a flat panel display which is capable of reducing consumption of standby power, and a method for driving the same. The flat panel display includes a display unit for displaying an image, a driving circuit for controlling driving of the display unit, a receiver for receiving a user command, and a power supply unit for setting a power mode to a driving mode or a standby mode according to a predefined power setting or the user command, and supplying driving power to the display unit, driving circuit and receiver in the driving mode and only to the receiver in the standby mode. When the power mode is set to the standby mode, the power supply unit generates the driving power using a battery contained therein and supplies the generated driving power to the receiver, and cuts off input of external power.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: August 11, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Ji-Young Ahn, Bu-Yeol Lee, Jong-Keun Shin
  • Patent number: 8649559
    Abstract: A method of recognizing a user's dynamic organ for use in an electric-using apparatus includes scanning a target image inputted through an imaging element using a window; generating a HOG descriptor of a region of the target image that is scanned when it is judged that the scanned region includes a dynamic organ; measuring a resemblance value between the HOG descriptor of the scanned region and a HOG descriptor of a query template for a gesture of the dynamic organ; and judging that the scanned region includes the gesture of the dynamic organ when the resemblance value meets a predetermined condition.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 11, 2014
    Assignees: LG Display Co., Ltd., Korea Advanced Instiute of Science and Technology
    Inventors: Ji-Young Ahn, Sung-Gae Lee, Hyung-Joon Koo, Chang-Ick Kim, Won-Jun Kim, Min-Jin Kim
  • Publication number: 20140028940
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 30, 2014
    Applicant: LG Display Co., Ltd.
    Inventor: Ji-Young AHN
  • Publication number: 20130274113
    Abstract: The present invention relates to a multiplex microfluidic device for selection of nucleic acid aptamers and a method for high-throughput selection of nucleic acid aptamers using the same, and more particularly to a multiplex microfluidic device (SELEX lap-on-a-chip) that uses an improved multiplex platform in place of the development of an aptamer for a single target and to a method for high throughput selection of aptamers using the same together with high-throughput sequencing. A multiplex microfluidic device according to the present invention can simultaneously detect aptamers for a plurality of targets, and it can greatly increase the screening throughput and greatly shorten the process time compared to conventional multiplex techniques.
    Type: Application
    Filed: October 5, 2011
    Publication date: October 17, 2013
    Applicant: PCL, INC.
    Inventors: So Youn Kim, Ji-Young Ahn, Minjoung Jo, Tae Kyung Kim
  • Publication number: 20130265340
    Abstract: A display device capable of displaying a standby screen on a display panel with various colors in a standby mode, and a method for controlling the same are disclosed. The display device includes a display panel including pixels, gate lines and data lines connected to the pixels and a common line connected to the pixels, a gate switching unit for connecting the gate lines in response to an external standby mode signal, a data switching unit for grouping the data lines in response to the standby mode signal and connecting the data lines belonging to the same group, and a standby mode driving unit for driving the gate lines in response to the standby mode signal and driving the data lines of at least one group and the common line so as to generate a potential difference between the data lines of the group and the common line.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 10, 2013
    Applicant: LG Display Co., LTD.
    Inventor: Ji-Young Ahn
  • Patent number: 8542338
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: September 24, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Ji Young Ahn
  • Patent number: 8310644
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: November 13, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Ji Young Ahn
  • Patent number: 8305396
    Abstract: In order to improve video quality by accurately detecting a preferred color region and correcting the preferred color region to a target color, a method for correcting a color of a display device includes converting input R/G/B data into Y/Cb/Cr data, calculating a weight by an exponential function using a dispersion and a distance between an input value and a target value of the Y/Cb/Cr data, comparing the calculated weight with a target color range so as to detect a target color region, and calculating a detection probability, detecting an average value, a minimum value and a maximum value of the Y/Cb/Cr data for the detected target color region from a previous frame, calculating a correction constant using the average value, the minimum value and the maximum value of the Y/Cb/Cr data, a predetermined target value of the Y/Cb/Cr data, and the Y/Cb/Cr which is detected as the target color region and is input, adding the detection probability to the calculated correction constant as the weight so as to calcul
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Dong Woo Kang, Ho Young Jung
  • Patent number: 8305389
    Abstract: A method and apparatus for simulating video data of a liquid crystal display (LCD) device is disclosed. The simulation method includes providing voltage-versus-transmittance data and viewing angle-versus-transmittance data, which vary with a liquid crystal mode, using an optical simulation, converting the result of the optical simulation into a lookup table in connection with a viewing angle and an applied voltage, matching a driving voltage for gamma setting based on the liquid crystal driving mode to gray level data corresponding to the voltage-versus-transmittance data, and correcting minimum/maximum brightness levels, simulating a user-desired test image on a user interface screen; and correcting a color of data of a test image according to properties of an output panel, and finally displaying the color-corrected image.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: November 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Dong Woo Kang
  • Patent number: 8218120
    Abstract: A fabricating method of an array substrate for an in-plane switching liquid crystal display device includes: forming a gate line and a common line on a substrate, the common line spaced apart from the gate line; forming a data line crossing the gate line to define a pixel region; forming a thin film transistor connected to the gate line and the data line; forming a pixel electrode and a common electrode in the pixel region, each of the pixel electrode and the common electrode including an opaque metal layer; and irradiating ultraviolet rays onto the opaque metal layer to form a metal oxide layer on the opaque metal layer.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: July 10, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji-Young Ahn, Jae-Young Oh
  • Patent number: 8160356
    Abstract: A method and apparatus for correcting a preferred color, which is capable of correcting the preferred color in consideration of an input image and the visual characteristics of a person by correcting differences between colors preferred by the person and an average color coordinate of a color to be corrected in the input image, and a liquid crystal display device using the same are disclosed.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: April 17, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Dong Woo Kang, Choon Woo Kim, Kyoung Tae Kim
  • Patent number: 8150148
    Abstract: Disclosed herein are a method and apparatus for detecting a preferred color, which is capable of accurately detecting a preferred-color area with a small amount of computations, and a liquid crystal display device using the same. The method for detecting a preferred color includes comparing a hue value of an input pixel with hue reference values and detecting a first preferred-color pixel, and performing a best linear estimation (BLE) operation with respect to the first preferred-color pixel and detecting a second preferred-color pixel.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 3, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Dong Woo Kang, Choon Woo Kim, Ji Young Yum, Byong Tae Ryu
  • Publication number: 20120068920
    Abstract: A method of recognizing a user's dynamic organ for use in an electric-using apparatus includes scanning a target image inputted through an imaging element using a window; generating a HOG descriptor of a region of the target image that is scanned when it is judged that the scanned region includes a dynamic organ; measuring a resemblance value between the HOG descriptor of the scanned region and a HOG descriptor of a query template for a gesture of the dynamic organ; and judging that the scanned region includes the gesture of the dynamic organ when the resemblance value meets a predetermined condition.
    Type: Application
    Filed: August 4, 2011
    Publication date: March 22, 2012
    Inventors: Ji-Young AHN, Sung-Gae Lee, Hyung-Joon Koo, Chang-Ick Kim, Won-Jun Kim, Min-Jin Kim
  • Patent number: 8125609
    Abstract: An IPS (In-Plane Switching) mode LCD (Liquid Crystal Display) includes first and second substrates facing each other; a plurality of gate lines and data lines arranged in a matrix configuration on the first substrate and defining a plurality of pixel regions; at least one common electrode and one pixel electrode alternatingly disposed at the pixel region to generate a horizontal electric field, at least one of them having a structure of a dual layer; and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: February 28, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Ji Young Ahn
  • Patent number: 8068123
    Abstract: A display device that includes a data modulator for comparing input data of m (m is a natural number of not less than 2) number of frames and inserts any one of black data and gray data in accordance with the comparison result and a driving method thereof are provided.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: November 29, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Ji Young Ahn
  • Patent number: 8049765
    Abstract: A color gamut mapping method, which is capable of minimizing a color difference perceived by a person, preventing brightness and contrast from deteriorating, and improving color reproducibility, and a liquid crystal display device using the same are disclosed.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: November 1, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Dong Woo Kang, Choon Woo Kim, Qiao Song Chen, Yu Hoon Kim
  • Publication number: 20110263055
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Inventor: Ji Young AHN
  • Patent number: 8045114
    Abstract: A liquid crystal display device includes: a first substrate and a second substrate; a gate line and a data line on the first substrate that cross each other to define a pixel region; a pixel electrode in the pixel region; a thin film transistor at the crossing of the gate and data lines, and connected to the pixel electrode; at least one first electric field distortion unit in the pixel electrode to control a liquid crystal director by electric field distortion; a second electric field distortion unit between the pixel electrode and the first substrate; and a layer of liquid crystal molecules between the first and second substrates.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: October 25, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Ji Young Ahn, Hyeon Ho Son