Patents by Inventor Jae-Jin Lyu

Jae-Jin Lyu 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: 20110261278
    Abstract: A liquid crystal display is provided that includes a first substrate; a second substrate facing the first substrate; a field generating electrode disposed on at least one of the first substrate and the second substrate; an alignment layer disposed on the field generating electrode; and a liquid crystal layer interposed between the first substrate and the second substrate and including a liquid crystal and an alignment polymer. The alignment layer initially contains an alignment material including an initiator, and the alignment polymer initially contains an alignment aid.
    Type: Application
    Filed: October 12, 2010
    Publication date: October 27, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-Kil OH, Su-Jeong KIM, Su-Han WOO, Jae-Jin LYU, Min-Hee KIM
  • Publication number: 20110260957
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other; a switching element disposed on the first substrate; a pixel electrode connected to the switching element and supplied with a data voltage; an opposing electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate and including liquid crystal molecules. The pixel electrode includes a cutout and a liquid crystal direction controller that are alternately disposed. The cutout and the liquid crystal direction controller divide the pixel electrode into a plurality of sub-regions, and inclination directions of the liquid crystal molecules are different according to the plurality of sub-regions when the pixel electrode is supplied with the data voltage. The liquid crystal direction controller is concave downward or convex upward with respect to a surface of the first substrate.
    Type: Application
    Filed: October 13, 2010
    Publication date: October 27, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn-Hak JEONG, Hee-Hwan LEE, Keun-Chan OH, Jae-Jin LYU, Yoon-Sung UM
  • Patent number: 8040446
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Sun Chang, Jae-Jin Lyu
  • Patent number: 8035787
    Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
  • Patent number: 8031287
    Abstract: The present invention relates to a display panel and a liquid crystal display including the same. The display panel includes a pixel electrode, which includes a first subpixel electrode, a second subpixel electrode, and a third subpixel electrode insulated from each other, a first thin film transistor connected to the first subpixel electrode, a second thin film transistor connected to the second subpixel electrode, a third thin film transistor connected to the third subpixel electrode, a gate line connected to the first, second, and third thin film transistors, a data line connected to the first, second, and third thin film transistors, and a voltage differentiating member to change voltages of the first, second, and third subpixel electrodes, the voltages of the first, second, and third subpixel electrodes being different from each other.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Hoon Kim, Hye-Ran Yoo, Jae-Jin Lyu, Seung-Beom Park
  • Patent number: 8026991
    Abstract: In a thin film transistor, first and second thin film transistors are connected to an Nth gate line and an Mth data line, and first and second sub pixel electrodes are connected to the first and second thin film transistors, respectively. A third thin film transistor includes a gate electrode connected to an (N+1)th gate line, a semiconductor layer overlapping with the gate electrode, a source electrode connected to the second sub pixel electrode and partially overlapping with the gate electrode, and a drain electrode facing the source electrode. A first auxiliary electrode is connected to the drain electrode and arranged on the same layer as the first and second sub pixel electrodes. An opposite electrode is arranged on the same layer as the gate line and at least partially overlaps with the first auxiliary electrode with at least one insulating layer disposed therebetween.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: September 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Hoon Kim, Hye-Ran You, Jae-Jin Lyu, Seung-Beom Park
  • Patent number: 8013966
    Abstract: A display panel is provided. The display panel includes a substrate and a pixel electrode disposed on the substrate and having a pair of first primary edges facing each other and a pair of second primary edges connected to the first primary edges and facing each other, wherein the second primary edges include a plurality of protrusions of the pixel electrode having the shape of sawteeth.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Yeon-Ju Kim, Yoon-Sung Um, Hak-Sun Chang, Seung-Hoo Yoo, Hyun-Wuk Kim, Jae-Jin Lyu, Chang-Hun Lee
  • Patent number: 7990484
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Sun Chang, Jae-Jin Lyu
  • Publication number: 20110170044
    Abstract: A liquid crystal includes about 60 wt % to about 80 wt % of a first compound material, about 2 wt % to about 15 wt % of a second compound material, and a neutral compound material. The first compound material has a dielectric anisotropy of a first polarity, and the second compound material has a dielectric anisotropy of a second polarity.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 14, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-Wuk KIM, Jae-Jin LYU, Yong-Kuk Yun
  • Patent number: 7978296
    Abstract: The invention is directed to an improved flat panel liquid crystal display (LCD). In one embodiment the improved LCD includes a liquid crystal layer that completely fills a gap formed between a color filter array and a thin film transistor (TFT) array. The TFT array includes a substrate that includes one or more pixel areas. Each pixel area may be divided into at least two pixel sub-areas. Each pixel sub-area is configured to have a different electric field than its counterparts, such that mutual compensation in the sub-areas decreases distortion of a gamma curve and improves lateral visibility of the flat panel display. In one embodiment, a first pixel electrode is formed in a first of the at least two pixel sub-areas; and a second pixel electrode is formed in a second of the at least two pixel sub-areas.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Jae-Jin Lyu, Doo-Hwan You
  • Patent number: 7973899
    Abstract: A thin film transistor array panel according to one embodiment of the invention comprises: first, second, and third pixel electrodes arranged sequentially, the second pixel electrode including first and second sub-pixel electrodes, the second pixel electrode occupying an area comprising a first area and a second area that is disposed closer to the third pixel electrode than the first area; first, second, and third thin film transistors connected to the first, the second, and the third pixel electrodes, respectively; first, second, and third gate lines connected to the first, the second, and the third thin film transistors, respectively; and a data line connected to the first, the second, and the third thin film transistors, wherein the second sub-pixel electrode is capacitively coupled to the third pixel electrode, and the second sub-pixel electrode is present in both the first and the second areas.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yoon-Sung Um, Chang-Hun Lee
  • Patent number: 7968002
    Abstract: A liquid crystal display panel includes: a first substrate and a second substrate facing each other, a first field-generating electrode and a second field-generating electrode formed on at least one of the first substrate and the second substrates, a homeotropic alignment layer formed on the first field-generating electrode and the second field-generating electrode and a liquid crystal material formed between the first substrate and the second substrate. The liquid crystal display panel further includes a polymer fixing a pre-tilt angle of liquid crystal molecules of the liquid crystal material, wherein the polymer is formed by polymerizing at least one selected from monomers represented by Chemical Formulas (I), (II), (III), and (IV). wherein, each of R1 and R2 includes at least one of acrylate, a vinyl group, and an epoxy group, n is 0 to 2, each of X1 to X4 is hydrogen or fluorine, Y is at least one selected from —CH2—, —O—, —CO—, —C(CF3)2—, and a single bond.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: June 28, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-Jin Lyu
  • Publication number: 20110141416
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other; a liquid crystal layer disposed between the first display panel and the second display panel and including pre-tilted liquid crystal molecules and a first compound derived from a reactive mesogen ; and an alignment layer positioned between the first display panel and the second display panel, wherein the alignment layer includes a polyimide derived from a composition including a dianhydride-based compound, and a compound represented by the following Chemical Formula 1. In the above Chemical Formula 1, R1 is a substituted or non-substituted C1-C8 alkyl group, R2 is a substituted or non-substituted C8-C30 alkyl group, and Al is a functional group including a substituted or non-substituted aliphatic ring and a substituted or non-substituted aromatic ring.
    Type: Application
    Filed: October 6, 2010
    Publication date: June 16, 2011
    Inventors: Hoon KIM, Chong-Uk Bang, Min-Jae Kim, Jae-Jin Lyu
  • Publication number: 20110128492
    Abstract: A method for manufacturing a liquid crystal display (“LCD”) includes; disposing a gate line including a gate electrode on a substrate, disposing a gate insulating layer on the gate line, disposing a data layer including a data line, source electrode and a drain electrode facing the source electrode on the gate insulating layer, disposing a color filter on the gate insulating layer, disposing an overcoat layer on the color filter, disposing a planarization layer on a portion of the overcoat layer corresponding to the gate line, the data line and the drain electrode, and disposing a pixel electrode in contacted with the overcoat layer in a region corresponding to the color filter.
    Type: Application
    Filed: July 20, 2010
    Publication date: June 2, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Su-Jeong KIM, Seung-Beom PARK, Jae-Jin LYU, Keun-Chan OH, Yoon-Sung UM
  • Patent number: 7936430
    Abstract: A liquid crystal includes about 60 wt % to about 80 wt % of a first compound material, about 2 wt % to about 15 wt % of a second compound material, and a neutral compound material. The first compound material has a dielectric anisotropy of a first polarity, and the second compound material has a dielectric anisotropy of a second polarity.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: May 3, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yong-Kuk Yun
  • Publication number: 20110096259
    Abstract: In a method of manufacturing a display substrate and a method of manufacturing a display panel, the display substrate includes a color filter layer disposed on a base substrate within a pixel area, a first organic insulating pattern disposed on a first boundary area between adjacent pixel areas, a pixel electrode disposed on the color filter layer, and a first blocking pattern disposed on the first organic insulating pattern. Accordingly, an organic insulating layer corresponding to the pixel area is removed so that deterioration of the display quality by impurities generated from the organic insulating layer may be minimized. In addition, a stepped portion of a blocking pattern disposed between a pixel area and a boundary area of a plurality of the pixel areas is reduced so that motion blurring of a liquid crystal may be prevented.
    Type: Application
    Filed: May 19, 2010
    Publication date: April 28, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Hyup LEE, Jae-Jin LYU
  • Publication number: 20110090447
    Abstract: A display apparatus including a plurality of gate lines, a data line intersecting the plurality of gate lines; a first pixel unit connected with a n-th gate line of the plurality of gate lines and the data line. A second pixel unit connected with a (n+1)-th gate line of the plurality of gate lines; and a coupling capacitor disposed between the first pixel unit and the second pixel unit, wherein the first pixel unit comprises a first liquid crystal capacitor and a first thin film transistor (TFT), the second pixel unit comprises a second liquid crystal capacitor and a second thin film transistor (TFT), and a source electrode and a drain electrode of the second TFT are connected with both electrodes of the coupling capacitor, respectively.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Inventors: Hye-ran You, Yoon-sung Um, Jae-jin Lyu, Seung-beom Park, Jin-won Park, Hoon Kim
  • Patent number: 7929088
    Abstract: A liquid crystal display comprises two parallel spaced substrates and a liquid crystal layer with negative dielectric anisotropy interposed between the substrates. The ratio d/p, the cell gap d between the substrates to the pitch p of the liquid crystal layer, is equal to or less than 0.3, and the retardation value ?n*d may be in the range of 0.25-0.4. In absence of electric field, the liquid crystal molecules are arranged vertically to the substrates, and when the sufficient electric field is applied, the liquid crystal molecules are parallel to the substrates and twisted by 90° from one substrate to the other. To the outer surface of a liquid crystal cell having a liquid crystal material with a negative dielectric anisotropy, a combination of a-plate, c-plate or biaxial compensation films is attached. The direction having the largest refractive index of the a-plate or the biaxial film is parallel or perpendicular to the polarizing direction of adjacent polarizer.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: April 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Jin Lyu, Hea-Ri Lee, Kyeong-Hyeon Kim, Jian-Min Chen
  • Patent number: 7916227
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Sun Chang, Jae-Jin Lyu
  • Publication number: 20110051065
    Abstract: A liquid crystal display and a manufacturing method are provided. A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate, a second substrate facing the first substrate, a field generating electrode disposed on at least one of the first substrate and the second substrate, an alignment layer disposed on the field generating electrode, and a liquid crystal layer interposed between the first substrate and the second substrate, including liquid crystal molecules and a second alignment polymer, wherein the first alignment polymer is formed by light-irradiating the alignment agent and the first alignment aids and the second alignment polymer is formed by light-irradiating the liquid crystal molecules and the second alignment aids, and the first alignment aids and the second alignment aids include a mesogen and a photo-polymerizable group coupled to the mesogen.
    Type: Application
    Filed: June 16, 2010
    Publication date: March 3, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong-Gi SEONG, Jae-Jin Lyu, Ki-Chul Shin, Seung-Beom Park, Keun-Chan Oh, Yoon-Sung Um, Su-Jeong Kim, Youn-Hak Jeong, Jun-Hyup Lee