Patents by Inventor Sang-joon Ryu
Sang-joon Ryu 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).
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Patent number: 11963357Abstract: Provided is a nonvolatile memory device. The nonvolatile memory device includes a conductive plate, a barrier conductive film extending along a surface of the conductive plate, a mold structure including a plurality of gate electrodes sequentially stacked on the barrier conductive film, a channel hole penetrating the mold structure to expose the barrier conductive film, an impurity pattern being in contact with the barrier conductive film, and formed in the channel hole, and a semiconductor pattern formed in the channel hole, extending from the impurity pattern along a side surface of the channel hole, and intersecting the plurality of gate electrodes.Type: GrantFiled: December 14, 2022Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kohji Kanamori, Seo-Goo Kang, Hyo Joon Ryu, Sang Youn Jo, Jee Hoon Han
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Patent number: 11916523Abstract: An amplification apparatus includes an amplifier having an inverting terminal, and a non-inverting terminal connected to a reset voltage node, a first capacitor connected to the inverting terminal, an input voltage being applied to the first capacitor, a second capacitor connected to the inverting terminal and an output terminal of the amplifier, and a duty-cycled resistor, connected in parallel to the second capacitor, including a first resistor. The duty-cycled resistor is configured to connect the first resistor and the inverting terminal and to disconnect the first resistor and the reset voltage node during a first time interval included in a period to complete an on-and-off cycle of the duty-cycled resistor, and disconnect the first resistor and the inverting terminal and to connect the first resistor and the reset voltage node during a second time interval included in the period.Type: GrantFiled: April 13, 2021Date of Patent: February 27, 2024Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Wonseok Lee, Kent Edrian Lozada, Seung Tak Ryu, Sang Joon Kim
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Patent number: 11758785Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: GrantFiled: July 20, 2021Date of Patent: September 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Cheolhwan Eom, Kwang-Min Kim, Hyeaweon Shin, Sang Joon Ryu, Hyungjun An, Minji Lee, Yul Kyu Lee, Jeahyun Lee
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Publication number: 20220359621Abstract: A display device is provided. The display device includes: a display substrate on which a plurality of light-emitting areas are defined; and a color conversion substrate on which a plurality of light-transmitting areas respectively associated with the plurality of light-emitting areas and light-blocking areas between the plurality of light-transmitting areas are defined, the color conversion substrate comprising color patterns in the light-blocking areas, and light-blocking members on the color patterns, wherein at least one of the light-emitting areas has an area smaller than the area of the light-transmitting area that overlaps it in a thickness direction, and the color patterns include a blue colorant.Type: ApplicationFiled: July 26, 2022Publication date: November 10, 2022Inventors: Jung Bae SONG, Shin Moon KANG, Da Hye KIM, Man Gi KIM, Sang Joon RYU, Seung In BAEK, Dae Woo LEE, Yeon Sung LEE, Youn Ho HAN
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Patent number: 11404492Abstract: A display device is provided. The display device includes: a display substrate on which a plurality of light-emitting areas are defined; and a color conversion substrate on which a plurality of light-transmitting areas respectively associated with the plurality of light-emitting areas and light-blocking areas between the plurality of light-transmitting areas are defined, the color conversion substrate comprising color patterns in the light-blocking areas, and light-blocking members on the color patterns, wherein at least one of the light-emitting areas has an area smaller than the area of the light-transmitting area that overlaps it in a thickness direction, and the color patterns include a blue colorant.Type: GrantFiled: December 27, 2019Date of Patent: August 2, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jung Bae Song, Shin Moon Kang, Da Hye Kim, Man Gi Kim, Sang Joon Ryu, Seung In Baek, Dae Woo Lee, Yeon Sung Lee, Youn Ho Han
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Publication number: 20210351245Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: ApplicationFiled: July 20, 2021Publication date: November 11, 2021Inventors: Cheolhwan EOM, Kwang-Min KIM, Hyeaweon SHIN, Sang Joon RYU, Hyungjun AN, Minji LEE, Yul Kyu LEE, Jeahyun LEE
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Patent number: 11101329Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: GrantFiled: June 12, 2020Date of Patent: August 24, 2021Inventors: Cheolhwan Eom, Kwang-Min Kim, Hyeaweon Shin, Sang Joon Ryu, Hyungjun An, Minji Lee, Yul Kyu Lee, Jeahyun Lee
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Publication number: 20200335556Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: ApplicationFiled: June 12, 2020Publication date: October 22, 2020Inventors: Cheolhwan EOM, Kwang-Min KIM, Hyeaweon SHIN, Sang Joon RYU, Hyungjun AN, Minji LEE, Yul Kyu LEE, Jeahyun LEE
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Publication number: 20200212113Abstract: A display device is provided. The display device includes: a display substrate on which a plurality of light-emitting areas are defined; and a color conversion substrate on which a plurality of light-transmitting areas respectively associated with the plurality of light-emitting areas and light-blocking areas between the plurality of light-transmitting areas are defined, the color conversion substrate comprising color patterns in the light-blocking areas, and light-blocking members on the color patterns, wherein at least one of the light-emitting areas has an area smaller than the area of the light-transmitting area that overlaps it in a thickness direction, and the color patterns include a blue colorant.Type: ApplicationFiled: December 27, 2019Publication date: July 2, 2020Inventors: Jung Bae SONG, Shin Moon Kang, Da Hye Kim, Man Gi Kim, Sang Joon Ryu, Seung In Baek, Dae Woo Lee, Yeon Sung Lee, Youn Ho Han
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Patent number: 10686017Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: GrantFiled: January 28, 2019Date of Patent: June 16, 2020Assignee: Samsung Display Co., Ltd.Inventors: Cheolhwan Eom, Kwang-Min Kim, Hyeaweon Shin, Sang Joon Ryu, Hyungjun An, Minji Lee, Yul Kyu Lee, Jeahyun Lee
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Publication number: 20190319078Abstract: A display device may include a display panel including a substrate that includes a display area and a pad area adjacent to the display area, and a first pad and a second pad on the pad area of the substrate, and a chip-on-film package over the pad area of the substrate with the first pad and the second pad in between, the chip-on-film package including an insulation layer, a first wiring on an upper surface of the insulation layer and electrically connected to the first pad, and a second wiring on a lower surface of the insulation layer and electrically connected to the second pad. A first signal having alternating voltage levels may be applied to the first wiring, and a second signal having a constant voltage level may be applied to the second wiring.Type: ApplicationFiled: January 28, 2019Publication date: October 17, 2019Inventors: Cheolhwan EOM, Kwang-Min KIM, Hyeaweon SHIN, Sang Joon RYU, Hyungjun AN, Minji LEE, Yul Kyu LEE, Jeahyun LEE
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Patent number: 9261555Abstract: To measure an inner temperature of a chamber included in a test handler, self-refresh currents of semiconductor memory devices under test are measured. The semiconductor memory devices are disposed in the chamber and have a function of linear temperature compensated self-refresh (Li-TCSR). Local temperature values are generated based on the self-refresh currents, where each local temperature value indicates a temperature near the corresponding semiconductor memory device of the semiconductor memory devices under test.Type: GrantFiled: February 20, 2013Date of Patent: February 16, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Kyu Yoon, Sang-Joon Ryu, Hwa-Cheol Lee, Yong-Hwan Cho
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Publication number: 20120155192Abstract: A semiconductor memory device and a method of testing the same are provided. The semiconductor memory device includes a memory cell array including a plurality of memory cells each of which stores at least one bit of data; an output terminal configured to transmit output data; and a data output circuit configured to be connected with the output terminal, to divide a cycle of a clock signal into at least two periods, to transmit the output data to the output terminal only during a particular period among the at least two periods, and to put the output terminal into a state of high impedance during the remaining periods other than the particular period among the at least two periods.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Sang Joon Ryu
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Patent number: 7746712Abstract: Provided are a semiconductor memory device having a post package repair control circuit and a post package repair method. In the semiconductor memory device and the post package repair method, in a post package repair mode, a second memory bank is used as a fail bit map memory for storing failed bit information regarding a first memory bank, and the first memory bank is used as a fail bit map memory for storing failed bit information regarding the second memory bank.Type: GrantFiled: April 4, 2008Date of Patent: June 29, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-sung Kang, Byung-heon Kwak, Hyun-soon Jang, Seung-whan Seo, Sang-joon Ryu, Hyun-tae Lim
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Publication number: 20080247243Abstract: Provided are a semiconductor memory device having a post package repair control circuit and a post package repair method. In the semiconductor memory device and the post package repair method, in a post package repair mode, a second memory bank is used as a fail bit map memory for storing failed bit information regarding a first memory bank, and the first memory bank is used as a fail bit map memory for storing failed bit information regarding the second memory bank.Type: ApplicationFiled: April 4, 2008Publication date: October 9, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Jae-sung Kang, Byung-heon Kwak, Hyun-soon Jang, Seung-whan Seo, Sang-joon Ryu, Hyun-tae Lim