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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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
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Patent number: 10718968Abstract: 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: May 3, 2018Date of Patent: July 21, 2020Assignee: 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: 10437118Abstract: Disclosed are an LCD device and a method of manufacturing the same, in which a passivation layer and a pixel electrode are simultaneously formed by a single mask process using a half tone mask, and thus, manufacturing efficiency increases, and a defective contact due to loss of the pixel electrode can be prevented in a pad area. The LCD device includes a pad part including a pad area and a contact area. The LCD device includes a pixel pad formed in the pad area, a pixel bar formed in the contact area, and a bridge layer contacting the pixel pad with the pixel bar. The bridge layer is formed as a single layer or multi layers, and formed of one or more of a transparent conductive material and an opaque conductive material.Type: GrantFiled: July 11, 2017Date of Patent: October 8, 2019Assignee: LG Display Co., Ltd.Inventors: Young Ki Jung, Jae Sung Yu, In Hyuk Song, Jae Hoon Park, Han Seok Lee
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Patent number: 10095420Abstract: A storage device includes a memory device configured to store data and a memory controller connected to the memory device through a data strobe line and a plurality of data lines. The storage device adds a predetermined specific pattern in front of data and processes data input following the specific pattern as valid data during a read or write operation. The specific pattern is provided in alignment with a data strobe signal (DQS) latency cycle. The memory controller detects a specific pattern input from the memory device during a read operation and processes data input following the specific pattern as valid data when the detected specific pattern matches an internally stored specific pattern.Type: GrantFiled: January 13, 2016Date of Patent: October 9, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Sung Yu, Kui-Yon Mun, Youngwook Kim