Patents by Inventor Jae-Sung Yu
Jae-Sung Yu 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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Publication number: 20240279802Abstract: Provided are a process chamber cleaning apparatus and method in which the inside of a process chamber may be cleaned without damaging to an inner wall or a component of the process chamber. The process chamber cleaning apparatus comprising: a chamber housing; a substrate support installed inside the chamber housing, supporting a plurality of semiconductor substrates; a gas supply providing process gases; a first gas injector installed inside the chamber housing, connected to the gas supply, injecting etch gas, which is one of the process gases, into the chamber housing; and a controller controlling operations of the gas supply and the first gas injector, wherein the first gas injector injects the etch gas in a direction twisted at a predetermined angle from a central direction of the chamber housing.Type: ApplicationFiled: November 14, 2023Publication date: August 22, 2024Inventors: Jung-Min LEE, Gi Duck KWEON, Dae Ki KIM, Hang Kyu SONG, Hyun Tae YANG, Byoung Kwon YEO, Byeong Ho WOO, Jae Sung YU, Jung Bae CHOI
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Publication number: 20240264522Abstract: A mask case includes a lower case including a first side surface and a second side surface opposite each other, a first rail on the first side surface, and a second rail on the second side surface, an upper case separable from the lower case, and includes third and fourth side surfaces corresponding to the first and second side surfaces, a third rail on the third side, and a fourth rail on the fourth side, a first sliding lock member slidable along the first and third rails, and a second sliding lock member slidable along the second and fourth rails, first and second holes for coupling first and second pins of first and second locking open and close devices are in the first and second sliding lock members, and the first and second sliding lock members are slid by the first and second locking open and close devices.Type: ApplicationFiled: January 11, 2024Publication date: August 8, 2024Inventors: Yun Song JEONG, Jun Hyuk CHANG, Sang Yong YU, Sang Min KIM, Jae Sung BYUN, Hyun Woo LEE
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Publication number: 20240221624Abstract: Provided are a gate driver and a display device including the same. The display device may include a display panel configured to display an image, a data driver configured to supply a data voltage to the display panel, a gate driver including a scan signal generation circuit configured to supply a scan signal to the display panel and a light-emitting signal generation circuit configured to supply a light-emitting signal to the display panel, and a clear signal line connected to the gate driver to deliver a clear signal in an alternating current form including a positive voltage and a negative voltage, wherein the gate driver initializes at least one of nodes of the scan signal generation circuit and nodes of the light-emitting signal generation circuit based on the clear signal.Type: ApplicationFiled: November 21, 2023Publication date: July 4, 2024Inventors: Yeon Woo SHIN, Jae Sung YU
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Patent number: 11862086Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.Type: GrantFiled: July 6, 2022Date of Patent: January 2, 2024Assignee: LG Display Co., Ltd.Inventors: Jae Hoon Park, Jae Sung Yu
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Patent number: 11854480Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.Type: GrantFiled: June 23, 2022Date of Patent: December 26, 2023Assignee: LG Display Co., Ltd.Inventors: Jae Sung Yu, Jae Hoon Park
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Publication number: 20230333422Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.Type: ApplicationFiled: June 17, 2023Publication date: October 19, 2023Applicant: LG Display Co., Ltd.Inventors: Heesun SHIN, Seok Woo LEE, Jae Sung YU, Ju Han KIM, Sun Jung LEE, In Hyuk SONG
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Patent number: 11749207Abstract: A gate driving circuit and a display device including the same are discussed. A signal transmitter of the gate driving circuit can include a first charge controller configured to charge a first control node in response to a voltage of a VST node, a second charge controller configured to charge a second control node using a first transistor that is turned on in response to an (N+1)th clock generated following an Nth clock, a first discharge controller configured to discharge the first control node in a charging period of the second control node, and a second discharge controller configured to discharge the second control node when the voltage of the VST node is a high voltage or in a charging period of the first control node.Type: GrantFiled: August 23, 2022Date of Patent: September 5, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Yeon Woo Shin, Jae Sung Yu
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Patent number: 11721290Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes signal transmitters receiving a start pulse, a shift clock, a charge/discharge clock, a back-bias clock, a high-potential driving voltage, and a low-potential reference voltage, and connected in a cascade structure. An Nth (N is a positive integer) signal transmitter of the signal transmitters includes a first control node; a second control node; a first controller controlling charging and discharging of the first control node by using at least one transistor to which the back-bias clock is inputted; a second controller controlling charging and discharging of the second control node; a first output buffer outputting a carry pulse in response to voltages of the first and second control nodes; and a second output buffer outputting a gate pulse.Type: GrantFiled: September 26, 2022Date of Patent: August 8, 2023Assignee: LG Display Co., Ltd.Inventors: Jae Sung Yu, Jae Hoon Park
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Patent number: 11714309Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.Type: GrantFiled: December 27, 2021Date of Patent: August 1, 2023Assignee: LG DISPLAY CO., LTD.Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
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Publication number: 20230110320Abstract: A gate driving circuit and a display device including the same are discussed. A signal transmitter of the gate driving circuit can include a first charge controller configured to charge a first control node in response to a voltage of a VST node, a second charge controller configured to charge a second control node using a first transistor that is turned on in response to an (N+1)th clock generated following an Nth clock, a first discharge controller configured to discharge the first control node in a charging period of the second control node, and a second discharge controller configured to discharge the second control node when the voltage of the VST node is a high voltage or in a charging period of the first control node.Type: ApplicationFiled: August 23, 2022Publication date: April 13, 2023Applicant: LG Display Co., Ltd.Inventors: Yeon Woo SHIN, Jae Sung YU
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Patent number: 11620949Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.Type: GrantFiled: August 1, 2022Date of Patent: April 4, 2023Assignee: LG Display Co., Ltd.Inventors: Jae Sung Yu, Jae Hoon Park
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Publication number: 20230097004Abstract: A gate driving circuit and a display device including the same are disclosed. The gate driving circuit includes signal transmitters receiving a start pulse, a shift clock, a charge/discharge clock, a back-bias clock, a high-potential driving voltage, and a low-potential reference voltage, and connected in a cascade structure. An Nth (N is a positive integer) signal transmitter of the signal transmitters includes a first control node; a second control node; a first controller controlling charging and discharging of the first control node by using at least one transistor to which the back-bias clock is inputted; a second controller controlling charging and discharging of the second control node; a first output buffer outputting a carry pulse in response to voltages of the first and second control nodes; and a second output buffer outputting a gate pulse.Type: ApplicationFiled: September 26, 2022Publication date: March 30, 2023Applicant: LG DISPLAY CO., LTD.Inventors: Jae Sung YU, Jae Hoon PARK
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Publication number: 20230074010Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.Type: ApplicationFiled: August 1, 2022Publication date: March 9, 2023Applicant: LG Display Co., Ltd.Inventors: Jae Sung YU, Jae Hoon PARK
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Patent number: 11594180Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.Type: GrantFiled: August 1, 2022Date of Patent: February 28, 2023Assignee: LG Display Co., Ltd.Inventors: Jae Sung Yu, Jae Hoon Park
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Publication number: 20230010040Abstract: A pixel circuit, a method for driving a pixel circuit and a display device. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied, the light emitting element being driven according to a current from the driving element; a first switch element connected between the first node and the second node; and a second switch element connected between the third node and the fourth node.Type: ApplicationFiled: June 23, 2022Publication date: January 12, 2023Applicant: LG DISPLAY CO., LTD.Inventors: Jae Sung YU, Jae Hoon PARK
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Publication number: 20230010212Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode to which a preset voltage is applied; a light emitting element including an anode electrode connected to a fourth node and a cathode electrode to which a low-potential power supply voltage is applied; a first switch element connected between the first node and the second node; a second switch element connected between the third node and the fourth node; a first capacitor connected to the first gate electrode of the driving element; and a second capacitor connected to the third node.Type: ApplicationFiled: July 6, 2022Publication date: January 12, 2023Inventors: Jae Hoon PARK, Jae Sung YU
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Publication number: 20220121051Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device. comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.Type: ApplicationFiled: December 27, 2021Publication date: April 21, 2022Applicant: LG Display Co., Ltd.Inventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
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Patent number: 11237421Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.Type: GrantFiled: June 23, 2020Date of Patent: February 1, 2022Assignee: LG Display Co., LtdInventors: Heesun Shin, Seok Woo Lee, Jae Sung Yu, Ju Han Kim, Sun Jung Lee, In Hyuk Song
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Publication number: 20200319491Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.Type: ApplicationFiled: June 23, 2020Publication date: October 8, 2020Applicant: LG Display Co., Ltd.Inventors: Heesun SHIN, Seok Woo LEE, Jae Sung YU, Ju Han KIM, Sun Jung LEE, In Hyuk SONG
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Patent number: 10775913Abstract: A touch sensor integrated display device includes a plurality of common electrode blocks serving as touch driving blocks and touch sensing blocks. Conductive lines connected to the touch driving blocks and touch sensing blocks are routed towards an inactive area of the display device by directly across the active area. The conductive lines are positioned within one or more organic dielectric layers formed under the common electrode blocks and pixel electrodes, but above the data lines of the display device.Type: GrantFiled: June 30, 2014Date of Patent: September 15, 2020Assignee: LG Display Co., Ltd.Inventors: Jae Sung Yu, SangSoo Hwang