Patents by Inventor Chul Huh

Chul Huh 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: 9658498
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first substrate, and a first electrode and a second electrode formed overlapping with each other on the first substrate, wherein a first insulating layer is disposed between the first electrode and the second electrode. The liquid crystal display further includes a light blocking member formed on the second electrode, a first spacer and a second spacer formed on the light blocking member, and a second substrate facing the first substrate.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 23, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yi Seop Shim, Chang Hun Kwak, Hee Ra Kim, Chang-Soon Jang, Chul Huh
  • Patent number: 9640736
    Abstract: Disclosed is a silicon nano crystal light emitting diode, including: a photoelectric conversion layer formed of a silicon nitride layer including a silicon nano crystal; an electron injection layer formed on the photoelectric conversion layer; and a hole injection layer, which faces the electron injection layer with the photoelectric conversion layer interposed therebetween, has an energy band gap higher than that of the photoelectric conversion layer, and has a refractive index lower than that of a silicon thin film.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: May 2, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chul Huh, Bong Kyu Kim, Chang Geun Ahn
  • Patent number: 9632347
    Abstract: A display substrate includes a substrate and a light blocking element. The light blocking element is disposed on the substrate. The light blocking element includes a first light blocking portion, a second light blocking portion, and a column spacer portion. The first light blocking portion includes an upper surface at a first height. The second light blocking portion is disposed adjacent to the first light blocking portion. The second light blocking portion includes an upper surface at a second height. The second height is less than the first height. The column spacer portion is disposed adjacent to the second light blocking portion. The column spacer portion includes an upper surface at a third height. The third height is greater than the first height.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 25, 2017
    Assignee: Samsung Display Co., Ltd
    Inventors: Chul Huh, Min-Jung Kang, Chang-Hun Kwak
  • Patent number: 9618801
    Abstract: Exemplary embodiments relate to a display device, an optical mask, and a method for manufacturing a display device using the same. The display device including: a first substrate and a second substrate facing the first substrate; a thin film transistor disposed on the first substrate; a first insulating layer disposed on the thin film transistor; and a light blocking member disposed on the first insulating layer. The light blocking member includes a spacer for maintaining a cell gap between the first substrate and the second substrate and a main light blocking portion having an upper surface that is lower than an upper surface of the spacer, and the light blocking member further includes a furrow at a border between the spacer and the main light blocking portion, the furrow having a surface lower than the upper surface of the main light blocking portion.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Soon Jang, Hee Ra Kim, Yi Seop Shim, Chul Huh
  • Publication number: 20170045654
    Abstract: A color filter comprises a red color filter, a green color filter, and a blue color filter, wherein the green color filter comprises a cyan pigment satisfying the following equation: A ? ? 2 A ? ? 1 = 0 where A1 denotes the absorbance of the cyan pigment in a wavelength range of about 600 nm to about 700 nm and A2 denotes the absorbance of the cyan pigment in a wavelength range of about 450 nm to about 500 nm.
    Type: Application
    Filed: March 28, 2016
    Publication date: February 16, 2017
    Inventors: Hyun Jin KIM, Su Jeong KIM, Dae Won LEE, Woo Man JI, Chul HUH
  • Publication number: 20170038629
    Abstract: A display device array substrate includes first and second light blocking regions, a first insulation layer disposed on the first light blocking region, a second insulation layer disposed on the second light blocking region, a light blocking member including a first part disposed on the first light blocking region and the first insulation layer, a second part disposed on the second light blocking region and the second insulation layer, and a third part disposed on a boundary between the first and second light blocking regions. A minimum height from an upper surface of the first insulation substrate to an upper surface of the third part is lower than a minimum height from the upper surface of the first insulation substrate to an upper surface of the first part and a minimum height from the upper surface of the first insulation substrate to an upper surface of the second part.
    Type: Application
    Filed: May 26, 2016
    Publication date: February 9, 2017
    Inventors: Sun Kyu JOO, Jang Wi RYU, Chul HUH
  • Patent number: 9563083
    Abstract: A display device includes a first substrate and a second substrate facing each other, a first thin film transistor (“TFT”) disposed on the first substrate, a second TFT disposed on the first substrate, a first color filter disposed on the first TFT and a periphery thereof, a second color filter disposed on the second TFT and a periphery thereof and representing a different color from the first color filter, and a light blocking member disposed on the first and second color filters where the light blocking member includes a first spacer disposed on the first TFT and the first color filter, a second spacer disposed on the second TFT and the second color filter, a main light blocking portion disposed in peripheries of the first and second spacers, and a furrow disposed between the second spacer and the main light blocking portion.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: February 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Hun Kwak, Young Bong Cho, Chul Huh
  • Publication number: 20170010496
    Abstract: A display device includes: a first substrate; a second substrate disposed opposite to the first substrate; a light blocking pattern disposed on the first substrate; and a column spacer which is disposed on the first substrate and maintains a distance between the first substrate and the second substrate, where the light blocking pattern and the column spacer are spaced apart from each other, and the column spacer has an island shape surrounded by the light blocking pattern.
    Type: Application
    Filed: January 6, 2016
    Publication date: January 12, 2017
    Inventors: Yi Seop SHIM, E Su KIM, Hee Ra KIM, Jun Woo LEE, Chang Soon JANG, Chul HUH
  • Publication number: 20170010504
    Abstract: A display device array substrate comprising first and second substrates that comprise a display area and a dummy area around the periphery of the display area, and that face each other; a color filter disposed on the first substrate; and a liquid crystal layer disposed on the color filter. The color filter comprises at least one or more first color filters and adjacent second color filters, and the first color filters and the second color filters overlap each other in the display area and do not overlap each other in the dummy area.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 12, 2017
    Inventors: Chang Hun KWAK, Dae Youn PARK, Chul HUH
  • Patent number: 9535295
    Abstract: A manufacturing method of a liquid crystal display includes: forming a thin film transistor on a first substrate; forming a color filter on the thin film transistor; forming a pixel electrode on the color filter; and forming a light blocking member including a column spacer protruded from the light blocking member on the color filter. The forming the light blocking member uses a mask including a first region, a second region, and a third region. The first region passes light generated from a light exposer, the second region includes a blocking filter layer which selectively passes the light generated from the light exposer, and the third region blocks the light generated from the light exposer.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 3, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gwan-Soo Kim, Chul Huh, Dong-Uk Kang
  • Patent number: 9529224
    Abstract: A liquid crystal display includes a display substrate, an opposite substrate, a liquid crystal layer, a main spacer, and a sub-spacer. The display substrate includes a plurality of pixel areas and a light blocking area, and at least one thin film transistor is disposed in the light blocking area. The opposite substrate is coupled to the display substrate. The liquid crystal layer is disposed between the display substrate and the opposite substrate. The main spacer is disposed on the display substrate, includes a light blocking material, and makes contact with the opposite substrate to maintain a cell gap between the display substrate and the opposite substrate. The sub-spacer is disposed on the display substrate, includes the light blocking material, and is spaced apart from the opposite substrate. The sub-spacer has a size corresponding to the light blocking area, and the main spacer is protruded from the sub-spacer.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., LTD.
    Inventors: Chang Hun Kwak, YiSeop Shim, Nuree Um, Chul Huh
  • Patent number: 9513504
    Abstract: A liquid crystal display includes: a first substrate and a second substrate facing the first substrate; a column spacer disposed on the first substrate; a light blocking member disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The light blocking member includes a dome shaped portion having a concave surface.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Jung Kang, Yi Seop Shim, Nu Ree Um, Chul Huh
  • Publication number: 20160327709
    Abstract: The present disclosure relates to a photosensitive composition for a green color filter. More particularly, the present disclosure relates to a dye for a green color filter which has a high light transmittance; a photosensitive composition including the dye; and a green color filter manufactured using the photosensitive composition.
    Type: Application
    Filed: December 31, 2015
    Publication date: November 10, 2016
    Inventors: Hyunjin Kim, Sunwoo Kang, Daewon Lee, Chul Huh
  • Publication number: 20160319130
    Abstract: There are provided a compound represented by the following Chemical Formula 1, a photosensitive resin composition for a color filter comprising the same, and a color filter manufactured using the photosensitive resin composition for a color filter. (in Chemical Formula 1, each substituent is as defined in the specification.
    Type: Application
    Filed: March 14, 2016
    Publication date: November 3, 2016
    Inventors: Dae Won LEE, Hyun Jin KIM, Soon Young KIM, Chul HUH
  • Patent number: 9482907
    Abstract: A liquid crystal display includes a display substrate, an opposite substrate coupled to and facing the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate. The display substrate includes a gate line extending in a first direction, a data line extending in a second direction crossing the first direction, a shielding electrode disposed along the data line covering the data line, a protruding electrode extending from the shielding electrode partially covering the gate line, and a pixel electrode electrically insulated from the shielding electrode and configured to receive a signal from the gate and data lines.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Hun Kwak, Minjung Kang, YiSeop Shim, Chul Huh
  • Patent number: 9465259
    Abstract: Provided is an LCD device including a first substrate, a second substrate, a liquid crystal layer, a main spacer, and a supplementary spacer. The liquid crystal layer is interposed between the first and second substrates. The main spacer makes contact with the first and second substrates. The supplementary spacer makes contact with one of the first and second substrates and is spaced apart from the other. A first area ratio defined by dividing the area of a first top surface by that of a first bottom surface of the main spacer may be smaller than a second area ratio defined by dividing the area of a second top surface by that of a second bottom surface of the supplementary spacer.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 11, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Soon Jang, Heera Kim, YiSeop Shim, Chul Huh
  • Patent number: 9459489
    Abstract: A liquid crystal display includes a first substrate that includes a plurality of pixels, a second substrate facing the first substrate that includes a plurality of color filters, a position of each color filter on the second substrate respectively corresponding to a position over one of the pixels and a black matrix disposed between the color filters, and a liquid crystal layer disposed between the first substrate and the second substrate. The plurality of color filters includes a red color pixel displaying a red color, a green color pixel displaying a green color, and a blue color pixel displaying a blue color. The green color pixel includes a yellow portion including a yellow pigment and a green portion disposed on the yellow portion and including a green pigment.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 4, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Hye Ryu, Myungjin Lee, Yun Ho Lee, Chul Huh
  • Publication number: 20160274402
    Abstract: Exemplary embodiments relate to a display device, an optical mask, and a method for manufacturing a display device using the same. The display device including: a first substrate and a second substrate facing the first substrate; a thin film transistor disposed on the first substrate; a first insulating layer disposed on the thin film transistor; and a light blocking member disposed on the first insulating layer. The light blocking member includes a spacer for maintaining a cell gap between the first substrate and the second substrate and a main light blocking portion having an upper surface that is lower than an upper surface of the spacer, and the light blocking member further includes a furrow at a border between the spacer and the main light blocking portion, the furrow having a surface lower than the upper surface of the main light blocking portion.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 22, 2016
    Inventors: Chang-Soon JANG, Hee Ra Kim, Yi Seop SHIM, Chul HUH
  • Publication number: 20160259205
    Abstract: A manufacturing method of a liquid crystal display includes forming display pixels which display an image and dummy pixels which do not display the image on a lower substrate including a display area and a non-display area positioned in at least one side outside the display area, coating a light blocking member material layer on a first dead space area adjacent to the display area and having a dummy area where the dummy pixels are positioned, a second dead space area adjacent to the first dead space area, and a third dead space area adjacent to the second dead space area in the non-display area, and forming first to third light blocking members through exposure by using an optical mask in which at least two or more halftone regions and a full-tone region are mixed.
    Type: Application
    Filed: November 6, 2015
    Publication date: September 8, 2016
    Inventors: Chang Hun KWAK, Hye Ran MUN, Chul HUH
  • Publication number: 20160259549
    Abstract: An apparatus and method for inputting a character using a keyboard displayed on a touch screen in a portable terminal. The apparatus and method determines if a touch signal is generated, with the keyboard displayed. Upon generation of the touch signal, a touched character is recognized by analyzing the touch signal. The character is displayed enlarged in a predetermined screen area. It is then determined if the touch has been completed, while the character is displayed enlarged. Upon sensing the touch completion, the character is displayed in a main screen area.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 8, 2016
    Inventor: Jung-Chul HUH