Patents by Inventor Sung-Wook Chang
Sung-Wook Chang 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: 11932618Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.Type: GrantFiled: March 13, 2023Date of Patent: March 19, 2024Assignee: ILDONG PHARMACEUTICAL CO., LTD.Inventors: Hong Chul Yoon, Kyung Mi An, Myong Jae Lee, Jin Hee Lee, Jeong-geun Kim, A-rang Im, Woo Jin Jeon, Jin Ah Jeong, Jaeho Heo, Changhee Hong, Kyeojin Kim, Jung-Eun Park, Te-ik Sohn, Changmok Oh, Da Hae Hong, Sung Wook Kwon, Jung Ho Kim, Jae Eui Shin, Yeongran Yoo, Min Whan Chang, Eun Hye Jang, In-gyu Je, Ji Hye Choi, Gunhee Kim, Yearin Jun
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Patent number: 11907485Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: GrantFiled: February 1, 2023Date of Patent: February 20, 2024Assignee: LG Display Co., Ltd.Inventors: Eun-Min Jo, Sung-Wook Chang
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Publication number: 20230298530Abstract: A gate driver includes a plurality of gate stages. Each of the plurality of gate stages includes a carry generating circuit outputting a second carry signal having a phase which is later than a phase of a first carry signal, on the basis of a first clock signal and a second clock signal having different phases and a scan generating circuit outputting a scan signal having a phase which differs from phases of the first and second carry signals, on the basis of the first clock signal, the second clock signal, and the first carry signal. Each of the first clock signal, the second clock signal, the first carry signal, and the second carry signal may be a P-type pulse, and the scan signal may be an N-type pulse.Type: ApplicationFiled: May 22, 2023Publication date: September 21, 2023Inventor: Sung Wook Chang
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Patent number: 11694629Abstract: A gate driver includes a plurality of gate stages. Each of the plurality of gate stages includes a carry generating circuit outputting a second carry signal having a phase which is later than a phase of a first carry signal, on the basis of a first clock signal and a second clock signal having different phases and a scan generating circuit outputting a scan signal having a phase which differs from phases of the first and second carry signals, on the basis of the first clock signal, the second clock signal, and the first carry signal. Each of the first clock signal, the second clock signal, the first carry signal, and the second carry signal may be a P-type pulse, and the scan signal may be an N-type pulse.Type: GrantFiled: May 11, 2022Date of Patent: July 4, 2023Assignee: LG Display Co., Lid.Inventor: Sung Wook Chang
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Publication number: 20230176698Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: ApplicationFiled: February 1, 2023Publication date: June 8, 2023Inventors: Eun-Min Jo, Sung-Wook Chang
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Patent number: 11625115Abstract: A touch display device for preventing the occurrence of a short circuit between routing lines is disclosed. The touch display device includes a dam forming a boundary with an encapsulation unit covering a light-emitting element, and the dam is formed such that the height thereof in a region that overlaps routing lines, which are connected to touch electrodes disposed on the encapsulation unit, and the height thereof in a region that does not overlap the routing lines are different from each other, thereby preventing the occurrence of a short circuit between the routing lines.Type: GrantFiled: March 11, 2022Date of Patent: April 11, 2023Assignee: LG Display Co., Ltd.Inventors: Neung-Hee Lee, Min-Su Kim, Sung-Wook Chang
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Patent number: 11592944Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: GrantFiled: June 28, 2021Date of Patent: February 28, 2023Assignee: LG Display Co., Ltd.Inventors: Eun-Min Jo, Sung-Wook Chang
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Publication number: 20220366855Abstract: A gate driver includes a plurality of gate stages. Each of the plurality of gate stages includes a carry generating circuit outputting a second carry signal having a phase which is later than a phase of a first carry signal, on the basis of a first clock signal and a second clock signal having different phases and a scan generating circuit outputting a scan signal having a phase which differs from phases of the first and second carry signals, on the basis of the first clock signal, the second clock signal, and the first carry signal. Each of the first clock signal, the second clock signal, the first carry signal, and the second carry signal may be a P-type pulse, and the scan signal may be an N-type pulse.Type: ApplicationFiled: May 11, 2022Publication date: November 17, 2022Inventor: Sung Wook Chang
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Publication number: 20220197424Abstract: A touch display device for preventing the occurrence of a short circuit between routing lines is disclosed. The touch display device includes a dam forming a boundary with an encapsulation unit covering a light-emitting element, and the dam is formed such that the height thereof in a region that overlaps routing lines, which are connected to touch electrodes disposed on the encapsulation unit, and the height thereof in a region that does not overlap the routing lines are different from each other, thereby preventing the occurrence of a short circuit between the routing lines.Type: ApplicationFiled: March 11, 2022Publication date: June 23, 2022Applicant: LG Display Co., Ltd.Inventors: Neung-Hee LEE, Min-Su KIM, Sung-Wook CHANG
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Publication number: 20220157246Abstract: Disclosed are a pixel driving circuit and an electroluminescent display device including the same. The pixel driving circuit in each of the pixels includes: a first switching circuit that turned on in response to the (n-2)th scan signal to provide a V1 voltage to a first node, provide a V3 voltage to a third node, and provide a V2 voltage to an anode of the light-emitting element; a second switching circuit turned on in response to the nth scan signal to electrically connect the first node to a second node, provide a V5 voltage to the third node, and provide a data voltage to a fourth node; and an emission control circuit turned on in response to the nth emission signal to electrically connect a second node to the anode and provide a reference voltage to the fourth node.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Inventor: Sung Wook CHANG
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Patent number: 11294489Abstract: A touch display device for preventing the occurrence of a short circuit between routing lines is disclosed. The touch display device includes a dam forming a boundary with an encapsulation unit covering a light-emitting element, and the dam is formed such that the height thereof in a region that overlaps routing lines, which are connected to touch electrodes disposed on the encapsulation unit, and the height thereof in a region that does not overlap the routing lines are different from each other, thereby preventing the occurrence of a short circuit between the routing lines.Type: GrantFiled: August 17, 2020Date of Patent: April 5, 2022Assignee: LG Display Co., Ltd.Inventors: Neung-Hee Lee, Min-Su Kim, Sung-Wook Chang
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Patent number: 11270644Abstract: A pixel driving circuit in each of the pixels includes: a first switching circuit that is turned on in response to the (n?2)th scan signal to provide a V1 voltage to a first node, provide a V3 voltage to a third node, and provide a V2 voltage to an anode of the light-emitting element; a second switching circuit turned on in response to the nth scan signal to electrically connect the first node to a second node, provide a V5 voltage to the third node, and provide a data voltage to a fourth node; and an emission control circuit turned on in response to the nth emission signal to electrically connect a second node to the anode and provide a reference voltage to the fourth node.Type: GrantFiled: November 30, 2020Date of Patent: March 8, 2022Assignee: LG Display Co., Ltd.Inventor: Sung Wook Chang
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Publication number: 20210326001Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: ApplicationFiled: June 28, 2021Publication date: October 21, 2021Inventors: Eun-Min JO, Sung-Wook CHANG
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Patent number: 11079885Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: GrantFiled: December 16, 2019Date of Patent: August 3, 2021Assignee: LG Display Co., Ltd.Inventors: Eun-Min Jo, Sung-Wook Chang
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Publication number: 20210191556Abstract: The present disclosure provides a touch display device for minimizing viewing-angle-dependent variation in color coordinates. The touch display device includes a light-emitting element disposed in each of a plurality of subpixels including emission areas having different sizes, a plurality of touch electrodes disposed on the light-emitting element, and at least one opening formed in each of the plurality of touch electrodes. The width of the opening is formed differently in each of the plurality of subpixels including the emission areas having different sizes, thereby minimizing viewing-angle-dependent variation in color coordinates.Type: ApplicationFiled: December 11, 2020Publication date: June 24, 2021Applicant: LG Display Co., Ltd.Inventors: Neung-Hee LEE, Sung-Wook CHANG, Hyung-Soo KIM
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Publication number: 20210174743Abstract: Disclosed are a pixel driving circuit and an electroluminescent display device including the same. The pixel driving circuit in each of the pixels includes: a first switching circuit that turned on in response to the (n?2)th scan signal to provide a V1 voltage to a first node, provide a V3 voltage to a third node, and provide a V2 voltage to an anode of the light-emitting element; a second switching circuit turned on in response to the nth scan signal to electrically connect the first node to a second node, provide a V5 voltage to the third node, and provide a data voltage to a fourth node; and an emission control circuit turned on in response to the nth emission signal to electrically connect a second node to the anode and provide a reference voltage to the fourth node.Type: ApplicationFiled: November 30, 2020Publication date: June 10, 2021Inventor: Sung Wook CHANG
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Publication number: 20210165517Abstract: A touch display device for preventing the occurrence of a short circuit between routing lines is disclosed. The touch display device includes a dam forming a boundary with an encapsulation unit covering a light-emitting element, and the dam is formed such that the height thereof in a region that overlaps routing lines, which are connected to touch electrodes disposed on the encapsulation unit, and the height thereof in a region that does not overlap the routing lines are different from each other, thereby preventing the occurrence of a short circuit between the routing lines.Type: ApplicationFiled: August 17, 2020Publication date: June 3, 2021Applicant: LG Display Co., Ltd.Inventors: Neung-Hee LEE, Min-Su KIM, Sung-Wook CHANG
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Publication number: 20200363905Abstract: The present disclosure provides a display device having a touch sensor for reducing the size of a bezel area. The display device having a touch sensor is configured such that touch electrodes and touch lines are disposed in a mesh shape on an encapsulation layer encapsulating light-emitting elements and such that some of the touch lines are connected to a touch-driving circuit via an upper bezel area, thereby reducing the size of left and right bezel areas.Type: ApplicationFiled: December 16, 2019Publication date: November 19, 2020Inventors: Eun-Min JO, Sung-Wook CHANG
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Patent number: 10424266Abstract: Provided are a gate driving circuit and a display device using the same. The gate driving circuit includes a shift register including a plurality of stages. A stage of the stages includes a first transistor configured to charge a first node with a first voltage level of a high voltage terminal of the stage. The first voltage level is higher than a second voltage level of a low voltage terminal of the stage. The stage further includes a control circuit connected to the first transistor. The control circuit is connected to the high voltage terminal and to an output terminal of a previous stage of the shift register. The control circuit is configured to control the first transistor to increase a voltage of the first node to be higher than a third voltage level, which is less than the first voltage level by a threshold voltage of the first transistor.Type: GrantFiled: May 23, 2017Date of Patent: September 24, 2019Assignee: LG Display Co., Ltd.Inventors: Sung Wook Chang, Se Wan Lee
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Patent number: 10338727Abstract: Present invention is related to a display device and a driving method thereof, and particularly, to a display device and a driving method thereof, which control an output timing of a scan signal output to gate lines by using two or more external start signals having different timings.Type: GrantFiled: September 9, 2016Date of Patent: July 2, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Sang Hee Yu, Hun Jeoung, Sung Hyun Cho, Bo Sun Lee, Sung Wook Chang