Patents by Inventor Chul Nam
Chul Nam 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: 20250124261Abstract: Disclosed is a probability distribution learning method for efficiently performing a statistical fluctuation analysis of a circuit according to process variations. The data generation method includes generating data representing performance metrics of the circuit, training a neural network by applying random noise as training input data and the performance metrics as training output data to the neural network, and generating synthetic samples that follow a distribution of the performance metrics by applying the random noise to the trained neural network.Type: ApplicationFiled: October 16, 2024Publication date: April 17, 2025Applicant: ALSEMY INC.Inventors: Chan Woo PARK, Hong Chul NAM
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Publication number: 20250107383Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: December 10, 2024Publication date: March 27, 2025Inventors: Hyung Uk Jang, Chul Nam
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Patent number: 12238981Abstract: A method of fabricating a display panel including a display region having a first pixel region where pixels are disposed, and a sensing region having a second pixel region where pixel groups are disposed and a light transmitting part disposed between the pixel groups, is discussed. The method can include forming a light shield layer at least in the sensing region, wherein the light shield layer includes an opening hole corresponding to the light transmitting part and exposes the light transmitting part to a laser beam through the opening hole. The method can further include forming a metal layer spaced apart from the light blocking layer in the first pixel region of the display region and the sensing region, and irradiating the laser beam to at least the sensing region to remove the metal layer from the light transmitting part.Type: GrantFiled: July 24, 2023Date of Patent: February 25, 2025Assignee: LG DISPLAY CO., LTD.Inventors: Duk Young Jeong, Chul Nam, Byeong Seong So
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Patent number: 12200999Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: GrantFiled: October 6, 2023Date of Patent: January 14, 2025Assignee: LG Display Co., Ltd.Inventors: Hyung Uk Jang, Chul Nam
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Publication number: 20240315099Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: ApplicationFiled: May 21, 2024Publication date: September 19, 2024Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
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Patent number: 12022703Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: GrantFiled: July 8, 2022Date of Patent: June 25, 2024Assignee: LG Display Co., Ltd.Inventors: Donghyun Lee, Chul Nam, Hyuck Choi
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Publication number: 20240040879Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Inventors: Hyung Uk Jang, Chul Nam
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Publication number: 20230371322Abstract: A method of fabricating a display panel including a display region having a first pixel region where pixels are disposed, and a sensing region having a second pixel region where pixel groups are disposed and a light transmitting part disposed between the pixel groups, is discussed. The method can include forming a light shield layer at least in the sensing region, wherein the light shield layer includes an opening hole corresponding to the light transmitting part and exposes the light transmitting part to a laser beam through the opening hole. The method can further include forming a metal layer spaced apart from the light blocking layer in the first pixel region of the display region and the sensing region, and irradiating the laser beam to at least the sensing region to remove the metal layer from the light transmitting part.Type: ApplicationFiled: July 24, 2023Publication date: November 16, 2023Applicant: LG DISPLAY CO., LTD.Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
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Patent number: 11818934Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: GrantFiled: August 25, 2021Date of Patent: November 14, 2023Assignee: LG Display Co., Ltd.Inventors: Hyung Uk Jang, Chul Nam
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Patent number: 11745336Abstract: Proposed is an elastic body having variable rigidity, wherein the elastic body is used in a series elastic actuator module, connects an input and an output, and has a rigidity that varies according to the applied torque. The elastic body having variable rigidity comprises: a connection part which receives torque from the input side or the output side; and a spring part connected to and receiving torque from the one selected from among the input side and the output side which is different from the connection part, wherein the spring part is formed integrally with the connection part and has a rigidity that varies as the connection part and the spring part come into contact with each other due to deformation caused by the applied torque.Type: GrantFiled: April 5, 2019Date of Patent: September 5, 2023Assignee: ROBOTIS CO., LTD.Inventors: Wook Jang, Hyoung Chul Nam, Byoung Soo Kim
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Publication number: 20220344447Abstract: A partial transparent display device has a light transmitting function and a light emitting function in one area. The partial transparent display device includes a substrate, a transparent emission area, a driving emission area, and a pad part. The transparent emission area is disposed to be adjacent to one side of the substrate. The driving emission area is disposed to be adjacent to the transparent emission area and to be closer to the other side opposite to the one side. The pad part extends from the driving emission area and is disposed on the other side. The driving emission area includes driving emission pixels which are defined by scan lines, data lines, and pixel driving power supply lines. The transparent emission area includes transparent emission pixels which are defined without the scan lines, the data lines, and the pixel driving power supply lines.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Inventors: Donghyun LEE, Chul NAM, Hyuck CHOI
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Publication number: 20220315985Abstract: Provided is an emulsion composition for digital PCR and uniform partitioning method of PCR samples for a digital polymerase chain reaction (digital PCR). With a digital polymerase chain reaction (digital PCR) emulsion composition for uniformly partitioning a PCR sample, a preparation method thereof, and a uniform partitioning method of a PCR sample according to the present invention, a PCR reagent to be amplified may be easily and rapidly prepared in an emulsion form, and reliability of digital PCR results may be significantly improved by allowing the formed emulsion to be uniformly partitioned using a cylindrical plate to which a reaction film is attached.Type: ApplicationFiled: August 29, 2019Publication date: October 6, 2022Inventors: Sung Woon LEE, Ho Chul NAM, Tae Ho YOON
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Publication number: 20220276107Abstract: The present invention relates to a load torque detection technology, and more particularly, to a device and method for load torque detection in a robot system. According to an embodiment of the present invention, it is possible to accurately detect the load torque without requiring a position sensor included in a load torque measurement actuator to have a multi-revolution function or additional power supply.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Applicant: ROBOTIS CO., LTD.Inventors: Byoung Soo KIM, In Yong HA, Yong Hee JEON, Soo Kyung SON, Hyoung Chul NAM
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Patent number: 11389285Abstract: The present invention relates to a bellows framework having a concave-convex structure on at least one of outer and inner sides using three-dimensional printing technology and a method of producing thereof, and an artificial tracheal replacement comprising an epithelium part formed on the inner side of the bellows framework and an annular cartilage part formed along the circumference of concave-convex grooves on the outer side and a method of producing thereof.Type: GrantFiled: June 2, 2017Date of Patent: July 19, 2022Assignees: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY—ACADEMIC COOPERATION FOUNDATION, GACHON UNIVERSITY OF INDUSTRY—ACADEMIC COOPERATION FOUNDATIONInventors: Jeong Hun Park, Dong-Woo Cho, Jung-Seob Lee, Ju Young Park, Min Jun Ahn, Inn Chul Nam, Sung Won Kim, Jae Yeon Lee, Jin Woo Lee, Sun Hwa Park, Byeong Gon Yun
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Publication number: 20220118608Abstract: Proposed is an elastic body having variable rigidity, wherein the elastic body is used in a series elastic actuator module, connects an input and an output, and has a rigidity that varies according to the applied torque. The elastic body having variable rigidity comprises: a connection part which receives torque from the input side or the output side; and a spring part connected to and receiving torque from the one selected from among the input side and the output side which is different from the connection part, wherein the spring part is formed integrally with the connection part and has a rigidity that varies as the connection part and the spring part come into contact with each other due to deformation caused by the applied torque.Type: ApplicationFiled: April 5, 2019Publication date: April 21, 2022Inventors: Wook JANG, Hyoung Chul NAM, Byoung Soo KIM
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Publication number: 20220069028Abstract: An embodiment discloses a display panel and a display device including the same. The display panel includes a first display region in which a plurality of pixels are disposed, and a second display region including a plurality of pixel regions, in which a plurality of pixels are disposed, and a plurality of light-transmitting regions disposed between the plurality of pixel regions, wherein the second display region includes a plurality of first pixels disposed in the plurality of pixel regions, a plurality of second pixels disposed in the plurality of light-transmitting regions, and a plurality of first electrodes extending from the plurality of pixel regions to the plurality of light-transmitting regions to electrically connect the plurality of first pixels to the plurality of second pixels.Type: ApplicationFiled: August 25, 2021Publication date: March 3, 2022Inventors: Hyung Uk Jang, Chul Nam
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Patent number: 11260393Abstract: A digital PCR device using centrifugal force. The present disclosure comprises: sample dish on which a microwell film having formed microwells is mounted; a door unit for inputting a sample while rotating the sample dish, and controlling the temperature of the sample which has been fractionated in the microwells by means of the centrifugal force and thus performing a PCR process; and a scan head unit for reading a fluorescent signal while rotating the sample which has been amplified in the microwells during the PCR process.Type: GrantFiled: January 4, 2018Date of Patent: March 1, 2022Inventors: Sung Woon Lee, Ho Chul Nam
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Patent number: 11232756Abstract: An electroluminescent display device having a plurality of pixels is disclosed. Each pixel includes a driving transistor having a gate connected to a first node, a source connected to a third node, and a drain connected to a fourth node, to generate pixel current corresponding to a data voltage when a high-level source voltage is applied to the third node, a light emitting element connected between the fourth node and an input terminal for a low-level source voltage, an internal compensator including first and second capacitors, and switching transistors, and a kick-back compensation transistor to apply a DC voltage higher than an initialization voltage to the first node in a kick-back compensation period between an initialization period and a data writing period.Type: GrantFiled: December 9, 2020Date of Patent: January 25, 2022Assignee: LG Display Co., Ltd.Inventors: Hyung-Uk Jang, Chul Nam, Byeong-Seong So, Young-Sung Cho
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Publication number: 20220005906Abstract: Provided are a display panel and a method of fabricating the same. The display panel includes a display region including a first pixel region where a plurality of pixels are disposed, a sensing region including a second pixel region where a plurality of pixel groups are disposed, and a light transmitting part disposed between the pixel groups. At least the second pixel region includes a light shield layer, and the light shield layer includes an opening hole corresponding to the light transmitting part.Type: ApplicationFiled: June 30, 2021Publication date: January 6, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Duk Young JEONG, Chul NAM, Byeong Seong SO
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Patent number: 11105397Abstract: A gear module includes: an external gear eccentrically rotating and having a plurality of teeth formed along an outer peripheral surface thereof; and an internal gear having a plurality of grooves formed along an inner peripheral surface thereof, wherein each groove and each pin come into contact with each other with two contact points, and each groove is formed concavely from an overlapping portion between a first circular sector having a first curvature radius r1 larger than a curvature radius of each pin and a first circular arc coming into contact with one contact point and a second circular sector having a second curvature radius larger than the curvature radius of each pin and a second circular arc coming into contact with another contact point, the first curvature radius and the second curvature radius passing through a center point of each pin and having the same size as each other.Type: GrantFiled: May 15, 2018Date of Patent: August 31, 2021Assignee: ROBOTIS CO., LTD.Inventors: Hyoung Chul Nam, Byoung Soo Kim, Wook Jang