Patents by Inventor Youn Hak Jeong

Youn Hak Jeong 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: 20100171892
    Abstract: Disclosed is a Fringe Field Switching (FFS) mode Liquid Crystal Display (LCD) including lower substrate, an upper substrate and a liquid crystal layer interposed between the substrates. Each pixel region is defined by gate lines and data lines formed to cross each other on the lower substrate. Switching devices are disposed at intersections of the gate lines and the data lines. The FFS mode LCD includes a transparent pixel electrode, and a transparent common electrode disposed apart from the transparent pixel electrode by an insulating layer interposed therebetween to adjust a transmittance by applying an electric field to the liquid crystal layer. A metal line of a specific thickness is formed to be electrically connected with the transparent common electrode on or under the transparent common electrode of a non-opening region in which the gate lines and the data lines are formed.
    Type: Application
    Filed: December 14, 2009
    Publication date: July 8, 2010
    Applicant: HYDIS TECHNOLOGIES CO., LTD.
    Inventors: Dong Hun Lim, Je Hoon Song, Youn Hak Jeong, Won Hee Lee
  • Publication number: 20100134741
    Abstract: A gate line and a data line are formed on a base substrate. A first sensor line is parallel with the gate line. A sensor gate electrode is extended from the first sensor line. A sensor active pattern having a plurality of island-type sub-active members is formed on the first sensor gate electrode. A second sensor line is parallel with the data line. A first sensor drain electrode is extended from the second sensor line at the sensor active pattern. A second sensor drain electrode corresponding to the first sensor gate electrode is formed on the sensor active pattern. A pixel electrode is electrically connected to the gate line and the data line. A sensor electrode part electrically connects the first and second sensor drain electrodes spaced apart from the pixel electrode. Light is reflected by the first and second sensor drain electrodes, which have an embossed shape.
    Type: Application
    Filed: May 6, 2009
    Publication date: June 3, 2010
    Inventors: Youn-Hak Jeong, Keun-Chan Oh, Yeon-Sik Ham, Dong-Gi Seong, Kang-Woo Kim, Yeon-Mun Jeon, Hee-Hwan Lee
  • Publication number: 20100127272
    Abstract: A thin film transistor array panel according to the present invention includes: a gate line formed on a substrate; a data line insulated from and intersecting the gate line; a thin film transistor connected to the gate line and the data line; a light blocking layer formed on the thin film transistor and having a first transmitting window; a reflection layer formed on the light blocking layer and a second transmitting window overlapping the first transmitting window; a color filter formed in the first transmitting window and the second transmitting window and on the reflection layer; and a pixel electrode formed on the color filter and overlapping the second transmitting window, wherein the reflection layer includes protrusions and depressions corresponding to a portion of the pixel area defined by the gate line and data line.
    Type: Application
    Filed: April 22, 2009
    Publication date: May 27, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youn-Hak JEONG, Keun-Chan Oh, Yeon-Sik Ham, Dong-Gi Seong, Kang-Woo Kim, Yeon-Mun Jeon, Hee-Hwan Lee
  • Publication number: 20100066933
    Abstract: A liquid crystal display device includes; a first display panel including; a first substrate, a plurality of gate lines extended substantially parallel to one another in a first direction on the first substrate; a plurality of data lines disposed substantially perpendicular to the gate lines, the data lines including at least one bent portion, a plurality of switching elements including a source electrode extended from the data lines and a drain electrode spaced apart from the source electrode, a plurality of pixel electrodes connected to the drain electrodes, each pixel electrode including a plurality of pixel electrode branches extended substantially in parallel with the data lines, a plurality of first counter electrode branches alternatingly disposed substantially in parallel with the pixel electrode branches and second counter electrode branches vertically aligned with the data lines, respectively.
    Type: Application
    Filed: August 19, 2009
    Publication date: March 18, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun-Chan OH, Youn-Hak JEONG, Yeon-Sik HAM, Dong-Gi SEONG
  • Publication number: 20100053518
    Abstract: A liquid crystal display panel includes; an array substrate including a pixel electrode disposed in a pixel area, the pixel electrode including a reflective electrode disposed in a reflective area of the pixel area and a transparent electrode disposed in a transmissive area of the pixel area, at least one of the reflective electrode and the transparent electrode including a plurality of first slit electrodes, an opposite substrate including a first common electrode disposed in alignment with the reflective area, the first common electrode including a plurality of second slit electrodes each having a width wider than that of an individual first slit electrode of the plurality of first slit electrodes, and a liquid crystal layer interposed between the array substrate and the opposite substrate.
    Type: Application
    Filed: May 20, 2009
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn-Hak JEONG, Keun-Chan OH, Yeon-Sik HAM, Dong-Gi SEONG, Kang-Woo KIM, Yeon-Mun JEON, Hee-Hwan LEE
  • Patent number: 7663724
    Abstract: Provided is a Fringe Field Switching (FFS) mode Liquid Crystal Display (LCD). In the FFS mode LCD, a lower substrate, an upper substrate and a liquid crystal layer interposed between the substrates are included, each pixel region is defined by gate lines and data lines formed to cross each other on the lower substrate, and switching devices are disposed at intersections of the gate lines and the data lines.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: February 16, 2010
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Dong Hun Lim, Je Hoon Song, Youn Hak Jeong, Won Hee Lee
  • Publication number: 20090268134
    Abstract: A liquid crystal display includes a first substrate, a plurality of gate lines formed on the first substrate, a plurality of data lines intersecting the gate lines, a plurality of thin film transistors connected to the gate lines and the data lines, a plurality of color filters formed on the gate lines, the data lines, and the thin film transistors, a plurality of first electrodes made of a transparent conductor formed on the color filters, and electrically connected to the thin film transistors, a first passivation layer formed on the first electrodes, a second electrode formed on the first passivation layer, and including a plurality of branch electrodes, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Application
    Filed: July 8, 2009
    Publication date: October 29, 2009
    Inventors: Young-Wook Lee, Jang-Soo Kim, Kang-Woo Kim, Youn-Hak Jeong
  • Patent number: 7545470
    Abstract: A fringe field switching mode LCD includes a lower substrate having a gate bus line and a data bus line arranged to cross each other and form unit pixels and a counter electrode and a pixel electrode positioned within each unit pixel region with a gate insulator interposed between them and an upper substrate provided with a color filter corresponding to each pixel region and bonded to the lower substrate with a liquid crystal layer interposed between them. The pixel electrode includes first pixel electrodes positioned on the gate insulator while being spaced from each other and second pixel electrodes positioned between the respective first pixel electrodes with a predetermined angle relative to them.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: June 9, 2009
    Assignee: Hydis Technologies Co., Ltd
    Inventors: Jun Baek Park, Hyang Yul Kim, Youn Hak Jeong
  • Patent number: 7525614
    Abstract: Disclosed is a fringe field switching mode transflective liquid crystal display capable of displaying high quality images. The transflective liquid crystal display includes a lower substrate having a counter electrode and a pixel electrode, an upper substrate aligned in opposition to the lower substrate by interposing a liquid crystal layer therebetween, an upper polarizing plate, a lower polarizing plate, a reflective plate provided at an inner portion of the lower substrate, a lower ?/2 plate, and an upper ?/2 plate. An inclination angle, a slit width and a slit interval of the pixel electrode of the reflective area are different from those of the pixel electrode of the transmissive area. The liquid crystal layer presents a phase delay of about 0 to ?/4 in the reflective area and presents a phase delay of about 0 to ?/2 in the transmissive area.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: April 28, 2009
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Youn Hak Jeong, Hyang Yul Kim, Jun Baek Park, Kwi Hyun Kim
  • Publication number: 20080186440
    Abstract: Provided is a Fringe Field Switching (FFS) mode Liquid Crystal Display (LCD) In the FFS mode LCD, a lower substrate, an upper substrate and a liquid crystal layer interposed between the substrates are included, each pixel region is defined by gate lines and data lines formed to cross each other on the lower substrate, and switching devices are disposed at intersections of the gate lines and the data lines.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Applicant: BOE HYDIS TECHNOLOGY CO., LTD.
    Inventors: Dong Hun Lim, Je Hoon Song, Youn Hak Jeong, Won Hee Lee
  • Patent number: 6914657
    Abstract: The present invention provides a liquid crystal display having improved screen quality by preventing abnormal light leakage due to ions in a pixel. The present invention comprises: an array substrate whereon a plurality of gate lines and data lines are arranged to be perpendicular to each other, a TFT is formed at the intersection of the lines and a pixel electrode is formed in a pixel region defined by the lines; a color filter substrate combined with the array substrate, whereon a color filter is formed corresponding to the pixel region, a block matrix is formed corresponding to the interface of pixels and a counter electrode is formed on the whole surface including the color filter and the black matrix; and a liquid crystal layer comprising a plurality of liquid crystal molecules interposed between the array substrate and the color filter substrate, wherein the pixel electrode has a rectangular shape and a plurality of acute angle Tips are formed on the edges thereof.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 5, 2005
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Sung Woon Kim, Dong Hae Suh, Youn Hak Jeong
  • Patent number: 6657693
    Abstract: Liquid crystal display having fast response time and preventing color shift is disclosed.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: December 2, 2003
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Youn Hak Jeong, Hyang Yul Kim, Seung Hee Lee
  • Patent number: 6583842
    Abstract: A reflective type fringe field switching mode liquid crystal display device having improved contrast is provided. The device has a lower and an upper substrates arranged with a distance and having a unit pixel defined therein. Between the substrates, a liquid crystal layer having a plurality of liquid crystal molecules are interposed. A counter electrode is formed on an inner surface of the lower substrate in the unit pixel. A pixel electrode is formed above the counter electrode. The pixel electrode and the counter electrode generate a fringe field for driving the liquid crystal molecules in the unit pixel. A horizontal alignment layer having a rubbing axis is interposed between the lower substrate and the liquid crystal layer, and a vertical alignment layer is interposed between the upper substrate and the liquid crystal layer. In addition, a polarizer is disposed on an outer surface of the upper substrate and having a polarizing axis.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: June 24, 2003
    Assignee: Boe-Hydis Technology Co., Ltd.
    Inventors: Seung Ho Hong, Youn Hak Jeong, Jin Mahn Kim, Seung Hee Lee
  • Publication number: 20030103183
    Abstract: The present invention provides a liquid crystal display having improved screen quality by preventing abnormal light leakage due to ions in a pixel. The present invention comprises: an array substrate whereon a plurality of gate lines and data lines are arranged to be perpendicular to each other, a TFT is formed at the intersection of the lines and a pixel electrode is formed in a pixel region defined by the lines; a color filter substrate combined with the array substrate, whereon a color filter is formed corresponding to the pixel region, a block matrix is formed corresponding to the interface of pixels and a counter electrode is formed on the whole surface including the color filter and the black matrix; and a liquid crystal layer comprising a plurality of liquid crystal molecules interposed between the array substrate and the color filter substrate, wherein the pixel electrode has a rectangular shape and a plurality of acute angle Tips are formed on the edges thereof.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 5, 2003
    Inventors: Sung Woon Kim, Dong Hae Suh, Youn Hak Jeong
  • Patent number: 6449026
    Abstract: Disclosed is a fringe field switching liquid crystal display (FFS-LCD) and a method for manufacturing the same.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: September 10, 2002
    Assignee: Hyundai Display Technology Inc.
    Inventors: Tae Yup Min, Seung Jun Yi, Seung Hee Lee, In Cheol Park, Youn Hak Jeong
  • Publication number: 20020067454
    Abstract: A reflective type fringe field switching mode liquid crystal display device having improved contrast is provided. The device has a lower and an upper substrates arranged with a distance and having a unit pixel defined therein. Between the substrates, a liquid crystal layer having a plurality of liquid crystal molecules are interposed. A counter electrode is formed on an inner surface of the lower substrate in the unit pixel. A pixel electrode is formed above the counter electrode. The pixel electrode and the counter electrode generate a fringe field for driving the liquid crystal molecules in the unit pixel. A horizontal alignment layer having a rubbing axis is interposed between the lower substrate and the liquid crystal layer, and a vertical alignment layer is interposed between the upper substrate and the liquid crystal layer. In addition, a polarizer is disposed on an outer surface of the upper substrate and having a polarizing axis.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 6, 2002
    Inventors: Seung Ho Hong, Youn Hak Jeong, Jin Mahn Kim, Seung Hee Lee
  • Patent number: 6266118
    Abstract: Disclosed is a liquid crystal displace capable of improving picture quality and having enhanced aperture ratio and transmittance.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: July 24, 2001
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Seung Hee Lee, Seok Lyul Lee, Youn Hak Jeong