Patents by Inventor A Ra Jo

A Ra Jo 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: 12135857
    Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: November 5, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Ga Young Kim, A Ra Jo
  • Patent number: 12105925
    Abstract: A touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the first touch electrodes and the second touch electrodes.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: October 1, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo
  • Publication number: 20240319425
    Abstract: A polarizing plate and an optical display apparatus are disclosed. A polarizing plate includes a polarizer and a protective film stacked on a light exit surface of the polarizer, and the protective film includes a polyester based base layer and an antiglare layer stacked on a surface of the polyester based base layer, and the protective film has an in-plane retardation of 100 nm to 4,000 nm at a wavelength of 550 nm, a total haze of 40% to 80%, and a ratio of internal haze to external haze of greater than 0 to 0.2.
    Type: Application
    Filed: March 13, 2024
    Publication date: September 26, 2024
    Inventors: Ji Hyun WI, Eun Mi KIM, A Ra JO, Min Jeong PARK, Han Su KIM
  • Publication number: 20240301164
    Abstract: A polarizing plate and an optical display apparatus including the same are disclosed. A polarizing plate includes: a polarizer; and a protective layer on at least one surface of the polarizer, and the polarizer includes a polyvinyl alcohol based film containing a dichroic material and contains a zinc cation and a sodium cation, and a ratio of the sodium cation to the zinc cation is in a range from 0.1 to 0.96, and a total content of the zinc cation and the sodium cation is in a range from 500 ppm to 1,500 ppm.
    Type: Application
    Filed: March 1, 2024
    Publication date: September 12, 2024
    Inventors: Min Jeong PARK, Yoo Jin KIM, Ji Hyun WI, Han Su KIM, Eun Mi KIM, A Ra JO
  • Patent number: 12086340
    Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.
    Type: Grant
    Filed: June 18, 2023
    Date of Patent: September 10, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ga Young Kim, Jang Hui Kim, A Ra Jo
  • Publication number: 20240272342
    Abstract: A polarizing plate and an optical display apparatus including the same are disclosed. A polarizing plate includes: a polarizer; and an optical stack on a surface of the polarizer, the optical stack including an antiglare layer, and the polarizing plate has an external haze of greater than 30%, an internal haze of less than 10%, a 60 degree gloss of 10 GU or less, and a 60 degree gloss-to-85 degree gloss ratio (60 degree gloss/85 degree gloss) of 0.2 or less.
    Type: Application
    Filed: February 2, 2024
    Publication date: August 15, 2024
    Inventors: Yoo Jin KIM, Ji Hyun WI, Min Jeong PARK, Han Su KIM, Eun Mi KIM, A Ra JO
  • Patent number: 12033970
    Abstract: A semiconductor device includes a low-density substrate, a high-density patch positioned inside a cavity in the low-density substrate, a first semiconductor die, and a second semiconductor die. The first semiconductor dies includes high-density bumps and low-density bumps. The second semiconductor die includes high-density bumps and low-density bumps. The high-density bumps of the first semiconductor die and the high-density bumps of the second semiconductor die are electrically connected to the high-density patch. The low-density bumps of the first semiconductor die and the low-density bumps of the second semiconductor die are electrically connected to the low-density substrate.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: July 9, 2024
    Assignee: AMKOR TECHNOLOGY SINGAPORE HOLDING PTE. LTD.
    Inventors: Jae Hun Bae, Won Chul Do, Min Yoo, Young Rae Kim, Min Hwa Chang, Dong Hyun Kim, Ah Ra Jo, Seok Geun Ahn
  • Patent number: 11945199
    Abstract: Disclosed are a laminated film including a light transmitting substrate; a hard coating layer; and an optical enhancement layer disposed between the light transmitting substrate and the hard coating layer or at a position facing the hard coating layer with the light transmitting substrate therebetween, wherein the light transmitting substrate includes a polyimide, a poly(amide-imide) copolymer, or a combination thereof, and the optical enhancement layer includes a copolymer comprising a polyimide, and a display device including the laminated film.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: April 2, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyunjeong Jeon, A Ra Jo, Jungha Chae, Sun Jin Song, Boreum Jeong
  • Patent number: 11947763
    Abstract: An input sensing device includes a plurality of first sensing electrodes having a plurality of first sensor units extending in a first direction. A plurality of second sensing electrodes has a plurality of second sensor units extending in a second direction different from the first direction. A first strain gauge includes a first force electrode located proximate to a first electrode of the plurality of first sensing electrodes. A second force electrode is located proximate to a second electrode of the plurality of first sensing electrodes. A first connecting electrode connects to both of the first force electrode and the second force electrode.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: April 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang Hui Kim, Hyung Chul Kim, A Ra Jo
  • Patent number: 11926127
    Abstract: Disclosed is a window film for a display device including a light transmitting substrate including a polyamide including a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and a hard coating layer laminated on one surface of the light transmitting substrate: in Chemical Formula 1 and Chemical Formula 2, each of A1, A2, B, and D is the same as defined in the detailed description.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 12, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Chanjae Ahn, Sun Jin Song, Won Suk Chang, Boreum Jeong, A Ra Jo, Kyeong-Sik Ju, Sungwon Choi
  • Patent number: 11921309
    Abstract: A polarizing plate and an optical display including the same are provided. A polarizing plate includes: a polarizer; and a first protective layer and a second protective layer sequentially stacked on a surface of the polarizer, and the second protective layer includes a positive C retardation layer, the positive C retardation layer having a thickness of about 10 ?m or less, an index of refraction of about 1.50 to about 1.55, and a glass transition temperature (Tg) of about 150° C. to about 250° C.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: March 5, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: A Ra Jo, Beom Deok Lee, Seon Gyeong Jeong, Seong Hoon Lee, Seung Mi Shin, Wan Taek Hong
  • Patent number: 11898012
    Abstract: A poly(amide-imide) copolymer that is a reaction product of a substituted or unsubstituted linear aliphatic diamine including two terminals, a diamine represented by Chemical Formula 1, a dicarbonyl compound represented by Chemical Formula 2, and a tetracarboxylic acid dianhydride represented by Chemical Formula 3: NH2-A-NH2?? Chemical Formula 1 wherein, in Chemical Formulae 1 to 3, A, R3, R10, R12, R13, X, n7 and n8 are the same as defined in the specification.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: February 13, 2024
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: A Ra Jo, Chanjae Ahn, Sungwon Choi, Won Suk Chang, Boreum Jeong
  • Patent number: 11851540
    Abstract: A laminated film which includes a first layer including a poly(amide-imide) copolymer, and a second layer laminated on at least one surface of the first layer. The second layer includes a poly(amide-imide) copolymer, polyimide, or a combination thereof, which has an amide content of less than or equal to about 30 mol %. The poly(amide-imide) copolymer included in the first layer has a weight average molecular weight of about 30,000 grams/mole to about 200,000 grams/mole, and the polyimide, the poly(amide-imide) copolymer, or the combination thereof, of the second layer has a weight average molecular weight of about 10,000 grams/mole to about 50,000 grams/mole, and the composition for preparing the laminated film.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 26, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Boreum Jeong, Chanjae Ahn, Hye Young Kong, Sun Jin Song, A Ra Jo, Kyeong-sik Ju
  • Publication number: 20230408860
    Abstract: Provided are an optical display device module and an optical display device including same, the optical display device module comprising an optical display device panel, and a first polarizing plate arranged on at least one surface of the optical display device panel, wherein the first polarizing plate includes a first polarizer and a first phase difference layer arranged between the first polarizer and the optical display device panel, the first phase difference layer includes at least a positive C layer, the optical display device panel includes a second phase difference layer therein, and the second phase difference layer and the first phase difference layer satisfy formula 1 and formula 2.
    Type: Application
    Filed: November 1, 2021
    Publication date: December 21, 2023
    Inventors: Wan Taek HONG, Jun Mo KOO, Bong Choon KIM, Seung Mi SHIN, Beom Deok LEE, Seong Hoon LEE, Seon Gyeong JEONG, A Ra JO
  • Publication number: 20230409156
    Abstract: A touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the first touch electrodes and the second touch electrodes.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 21, 2023
    Inventors: Jang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo
  • Publication number: 20230384901
    Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.
    Type: Application
    Filed: May 22, 2023
    Publication date: November 30, 2023
    Inventors: Jang Hui Kim, Ga Young Kim, A Ra Jo
  • Publication number: 20230333680
    Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.
    Type: Application
    Filed: June 18, 2023
    Publication date: October 19, 2023
    Inventors: Ga Young KIM, Jang Hui KIM, A Ra JO
  • Publication number: 20230303921
    Abstract: A display panel and an electronic device including the display panel are provided, where the display panel includes a quantum dot composite including a matrix and a plurality of quantum dots and titanium dioxide (TiO2) particles dispersed in the matrix, the plurality of quantum dots include silver and gallium, exhibit an emission peak wavelength of from about 500 nm to about 550 nm, and a full width at half maximum of the emission peak is greater than or equal to about 10 nm and less than or equal to about 50 nm, and where the quantum dot composite has a mole ratio of silver to titanium of greater than or equal to about 0.4:1 and less than or equal to about 15:1, and a mole ratio of gallium to titanium of greater than or equal to about 0.4:1 and less than or equal to about 20:1.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 28, 2023
    Inventors: Tae-Gon KIM, Shang Hyeun PARK, Nayoun WON, Minho KIM, Seungrim YANG, Shin Ae JUN, Yebin JUNG, A Ra JO
  • Patent number: 11768571
    Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: September 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo
  • Publication number: 20230295493
    Abstract: A color conversion panel, comprising a color conversion layer comprising a color conversion region and optionally a partition wall defining each region of the color conversion layer, wherein the color conversion region comprises a first region corresponding to a first pixel, the first region comprises a first composite, the first composite comprises a matrix and a semiconductor nanoparticle, wherein the semiconductor nanoparticle is dispersed in the matrix, the semiconductor nanoparticle comprises silver, a Group 13 metal, zinc, and a chalcogen element, the semiconductor nanoparticle emits a first light, the Group 13 metal is indium, gallium, aluminum, or a combination thereof, the chalcogen element is sulfur, selenium, or a combination thereof, and in the semiconductor nanoparticle, a mole ratio of zinc to a total sum of silver, Group 13 metal, and zinc is greater than or equal to about 0.01:1.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 21, 2023
    Inventors: Nayoun WON, Tae-Gon KIM, Minho KIM, Shang Hyeun PARK, Seungrim YANG, Jun Ho LEE, Shin Ae JUN, Yebin JUNG, A Ra JO