Patents by Inventor Sang-Cheol Jung

Sang-Cheol Jung 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: 20240123109
    Abstract: An air purification module comprises a housing having an interior space provided with an air inlet and an air outlet, and an axial type blowing fan, mounted in the housing, for moving air from the air inlet to the air outlet. The air purification module further includes an air purifying unit, provided on a flow path of the air, for purifying the air and a guide for reducing the flow rate of the air between the blowing fan and the air purifying unit. The air purifying unit includes a filter provided between the blowing fan and the air outlet and a light source unit for providing light to the filter.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 18, 2024
    Inventors: Ji Won KIM, Jae Hak JEONG, Sang Cheol SHIN, Woong Ki JUNG
  • Publication number: 20220223770
    Abstract: An optical display device having a backplane substrate and a cover plate adjacent to and spaced apart from the backplane substrate is provided. The backplane substrate can include a plurality of electroluminescent elements disposed thereon and the cover plate can include a plurality of light absorbing wedge-shaped features arranged in rows thereon.
    Type: Application
    Filed: May 15, 2020
    Publication date: July 14, 2022
    Inventors: Sang-cheol Jung, Dae youn Kim, Goo Soo Lee, Kyung-jin Lee, Dong Keun Shin, Hong Yoon
  • Patent number: 8427768
    Abstract: An optical filter for compensating for color shift is provided in front of a display panel of a display device. The optical filter includes a background layer and a green wavelength absorption pattern provided with a predetermined thickness on the background layer. The green wavelength absorption pattern absorbs a green wavelength of light. The green wavelength absorption pattern contains a material that absorbs a green wavelength of light in the range of 510 nm to 560 nm, and can also contain a white light absorbing material. A green's complementary color absorbing part absorbs a wavelength of light complementary to green, and contains at least one of a material absorbing a blue wavelength of light in the range of 440 nm to 480 nm and a material absorbing a red wavelength of light in the range of 600 nm to 650 nm.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: April 23, 2013
    Assignee: Samsung Corning Precision Materials Co., Ltd
    Inventors: Seong Sik Park, Seung Won Park, Sung Nim Jo, In Sung Sohn, Sang Cheol Jung, Ji Yoon Yeom, Eui Soo Kim
  • Patent number: 8262239
    Abstract: A display filter and a display apparatus including the display filter increase a contrast ratio, increase brightness, and have a great electromagnetic (EM) radiation-shielding effect. The display filter includes a filter base and an external light-shielding layer formed on a surface of the filter base. The external light-shielding layer includes a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals, and including a conductive material.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: September 11, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Tae Soon Park, Sang Cheol Jung, In Sung Sohn
  • Patent number: 8241531
    Abstract: A zinc oxide-based conductor includes ZnO co-doped with gallium and manganese. Preferably, the doping concentration of the gallium ranges from 0.01 at % to 10 at % and the doping concentration of the manganese ranges from 0.01 at % to 5 at %. More preferably, the doping concentration of the gallium ranges from 2 at % to 8 at % and the doping concentration of the manganese ranges from 0.1 at % to 2 at %. Still more preferably, the doping concentration of the gallium ranges from 4 at % to 6 at % and the doping concentration of the manganese ranges from 0.2 at % to 1.5 at %. The zinc oxide-based conductor is a transparent conductor that is used as an electrode of a solar cell or a liquid crystal display.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: August 14, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Tae Hwan Yu, Yoon Gyu Lee, Yil Hwan You, Sang Cheol Jung
  • Publication number: 20110168254
    Abstract: An electrode plate for a dye-sensitized photovoltaic cell includes a transparent substrate and a transparent conductive film. The transparent conductive film includes a zinc oxide thin film layer formed over the transparent substrate, the zinc oxide thin film layer being doped with gallium, and a tin oxide thin film layer formed over the zinc oxide thin film layer, the tin oxide thin film layer being doped with a dopant.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 14, 2011
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Yoon Gyu Lee, Yil Hwan You, Dong Jo Kim, Tae Hwan Yu, Sang Cheol Jung, Hoon Park
  • Publication number: 20110102722
    Abstract: An indium tin oxide sputtering target includes indium oxide, tin oxide, and gallium. The content of tin atoms is 5 to 15 atomic percent of the total amount of indium and tin atoms, and the content of gallium atoms is 0.5 to 7 atomic percent of the total amount of indium, tin, and gallium atoms. A method of fabricating an indium tin oxide transparent conductive film includes depositing the transparent conductive film by sputtering the sputtering target. The indium tin oxide transparent conductive film having high durability can be fabricated by depositing an amorphous transparent conductive film by sputtering the sputtering target at a first temperature, patterning the deposited amorphous transparent conductive film by etching it using a weak acid, and crystallizing the patterned amorphous transparent conductive film at a second temperature higher than the first temperature. A crystallization temperature ranges from 150° C. to 210° C., or from 170° C. to 210° C.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 5, 2011
    Inventors: Shin Hyuk KANG, Jun Ho CHOI, Hwang Yong GO, Sang Cheol JUNG
  • Patent number: 7922357
    Abstract: Disclosed are an external light-shielding layer for a display filter preventing occurrence of ghosting using a difference between refractive indexes of a base substrate and an external light-shielding part, and a display filter and display apparatus including the external light-shielding layer. The external light-shielding layer for the display filter comprises a base substrate made of a transparent resin; and at least one external light-shielding part arranged on a surface of the base substrate and filled with an external light-absorption material, wherein ny of a refractive index of the base substrate is less than or equal to nx of a refractive index of the external light-shielding part.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: April 12, 2011
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Sung Nim Jo, Sang Cheol Jung, Eun Young Cho
  • Publication number: 20110032620
    Abstract: A display filter and a display apparatus including the display filter, which can increase a contrast ratio, increase brightness, and have a great electromagnetic (EM) radiation-shielding effect, are provided. The display filter includes: a filter base; and an external light-shielding layer formed on a surface of the filter base, wherein the external light-shielding layer includes a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals, and including a conductive material.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Applicant: SAMSUNG CORNING CO., LTD.
    Inventors: Tae Soon PARK, Sang Cheol Jung, In Sung Sohn
  • Publication number: 20110001095
    Abstract: A zinc oxide-based conductor includes ZnO co-doped with gallium and manganese. Preferably, the doping concentration of the gallium ranges from 0.01 at % to 10 at % and the doping concentration of the manganese ranges from 0.01 at % to 5 at %. More preferably, the doping concentration of the gallium ranges from 2 at % to 8 at % and the doping concentration of the manganese ranges from 0.1 at % to 2 at %. Still more preferably, the doping concentration of the gallium ranges from 4 at % to 6 at % and the doping concentration of the manganese ranges from 0.2 at % to 1.5 at %. The zinc oxide-based conductor is a transparent conductor that is used as an electrode of a solar cell or a liquid crystal display.
    Type: Application
    Filed: June 28, 2010
    Publication date: January 6, 2011
    Inventors: Tae Hwan Yu, Yoon Gyu Lee, Yil Hwan You, Sang Cheol Jung
  • Patent number: 7755263
    Abstract: An external light-shielding layer capable of enhancing a visible light transmittance and a contrast ratio and preventing Moire fringe and Newton ring phenomena, a display filter including the external light-shielding layer, and a display device including the display filter. The external light-shielding layer includes a transparent resin matrix, and a plurality of light-shielding patterns formed on the transparent resin matrix and spaced apart from each other in a predetermined interval, wherein a bias angle (?) formed between a traveling direction of the light-shielding patterns and the longer side of the matrix is in a range of about 5 to 80 degrees.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: July 13, 2010
    Assignee: Samsung Corning Precision Glass Co., Ltd.
    Inventors: Dae-chul Park, Jae-young Choi, Tae-soon Park, Sang-cheol Jung, Jin-Woo Yeo, Jin Seo
  • Publication number: 20100073794
    Abstract: An optical filter for compensating for color shift is provided in front of a display panel of a display device. The optical filter includes a background layer and a green wavelength absorption pattern provided with a predetermined thickness on the background layer. The green wavelength absorption pattern absorbs a green wavelength of light. The green wavelength absorption pattern contains a material that absorbs a green wavelength of light in the range of 510 nm to 560 nm, and can also contain a white light absorbing material. A green's complementary color absorbing part absorbs a wavelength of light complementary to green, and contains at least one of a material absorbing a blue wavelength of light in the range of 440 nm to 480 nm and a material absorbing a red wavelength of light in the range of 600 nm to 650 nm. A first thick-film layer, a first thin-film layer, and a second thick-film layer are stacked over one another in the order named.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 25, 2010
    Applicant: SAMSUNG CORNING PRECISION GLASS CO., LTD.
    Inventors: Seong Sik Park, Seung Won Park, Sung Nim Jo, In Sung Sohn, Sang Cheol Jung, Ji Yoon Yeom, Eui Soo Kim
  • Patent number: 7679275
    Abstract: A display filter capable of enhancing the visible light transmittance and contrast ratio for a bright room condition and a display device including the same. The display filter includes a filter base, and an external light-shielding layer, disposed on a surface of the filter base, including a matrix made of a transparent resin and a plurality of wedge-shaped black stripes arranged parallel to each other at a surface of the matrix.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: March 16, 2010
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Dae-chul Park, Jae-young Choi, Tae-soon Park, Sang-cheol Jung
  • Patent number: 7612489
    Abstract: A display filter for use with a plurality of microlenses in a display system includes an external light and electromagnetic (EM)-shielding portion having a photosensitive transparent resin layer with a photocatalyst, and an external light and EM-shielding pattern formed on regions of the photosensitive transparent resin layer to prevent external light from entering the display system and to prevent EM waves generated in the display device from exiting the display device, the regions corresponding to boundaries between the plurality of microlenses.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: November 3, 2009
    Assignee: Samsung Corning Precision Glass Co., Ltd.
    Inventors: Dae-chul Park, Yong-won Choi, Sang-cheol Jung, Wang-kyu Choi
  • Patent number: 7456557
    Abstract: An external light-shielding layer capable of enhancing a visible light transmittance and a contrast ratio and preventing Moiré fringe and Newton ring phenomena, a display filter including the external light-shielding layer, and a display device including the display filter. The external light-shielding layer includes a transparent resin matrix, and a plurality of light-shielding patterns formed on the transparent resin matrix and spaced apart from each other in a predetermined interval, wherein a bias angle (?) formed between a traveling direction of the light-shielding patterns and the longer side of the matrix is in a range of about 5 to 80 degrees.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 25, 2008
    Assignee: Samsung Corning Precision Glass Co., Ltd.
    Inventors: Dae-Chul Park, Jae-Young Choi, Tae-Soon Park, Sang-Cheol Jung, Jin-Woo Yeo, Jin Seo
  • Publication number: 20080166546
    Abstract: An optical sheet, including: a transparent material; a light absorption pattern formed on a side of the transparent material; and a flexible adhesion layer formed on the side of the transparent material in which the light absorption pattern is formed.
    Type: Application
    Filed: January 4, 2008
    Publication date: July 10, 2008
    Inventors: Sung Nim Jo, In Sung Sohn, Sang Cheol Jung, Eun Young Cho
  • Publication number: 20080151555
    Abstract: Disclosed are an external light-shielding layer for a display filter preventing occurrence of ghosting using a difference between refractive indexes of a base substrate and an external light-shielding part, and a display filter and display apparatus including the external light-shielding layer. The external light-shielding layer for the display filter comprises a base substrate made of a transparent resin; and at least one external light-shielding part arranged on a surface of the base substrate and filled with an external light-absorption material, wherein ny of a refractive index of the base substrate is less than or equal to nx of a refractive index of the external light-shielding part.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 26, 2008
    Inventors: Sung Nim Jo, Sang Cheol Jung, Eun Young Cho
  • Publication number: 20080137349
    Abstract: Disclosed is a complex film for a display apparatus, which comprises a base film; an anti-reflection film formed on a first surface of the base film and adapted to prevent reflection of external light; an external light shielding film formed on a second surface opposite to the first surface and including an external light shielding pattern, the external light shielding pattern having a plurality of external light shielding parts formed on a surface of the external light shielding film; and an adhesive film formed on the external light shielding film and including at least one colorant having a selective wavelength absorption capability. The complex film has multi-functionalities such as electromagnetic wave shielding, external light absorption, near infrared ray shielding, color correction, and the like, thereby simplifying an assembly process of the display apparatus, and reducing the thickness of the display apparatus.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Applicant: Samsung Corning Co., Ltd.
    Inventors: Sung Nim Jo, In Sung Sohn, Sang Cheol Jung, Hye Kyoung Lee
  • Publication number: 20080088215
    Abstract: An external light-shielding layer capable of enhancing a visible light transmittance and a contrast ratio and preventing Moiré fringe and Newton ring phenomena, a display filter including the external light-shielding layer, and a display device including the display filter. The external light-shielding layer includes a transparent resin matrix, and a plurality of light-shielding patterns formed on the transparent resin matrix and spaced apart from each other in a predetermined interval, wherein a bias angle (?) formed between a traveling direction of the light-shielding patterns and the longer side of the matrix is in a range of about 5 to 80 degrees.
    Type: Application
    Filed: December 28, 2007
    Publication date: April 17, 2008
    Applicant: SAMSUNG CORNING CO., LTD.
    Inventors: DAE CHUL PARK, Jae-Young Choi, Tae-soon Park, Sang-Cheol Jung, Jin-Woo Yeo, Jin Seo
  • Publication number: 20070210821
    Abstract: A display filter and a display apparatus including the display filter, which can increase a contrast ratio, increase brightness, and have a great electromagnetic (EM) radiation-shielding effect, are provided. The display filter includes: a filter base; and an external light-shielding layer formed on a surface of the filter base, wherein the external light-shielding layer includes a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals, and including a conductive material.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 13, 2007
    Inventors: Tae Soon Park, Sang Cheol Jung, In Sung Sohn