Patents by Inventor Yong-Jung Kwon
Yong-Jung Kwon 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: 11749167Abstract: The present disclosure relates to a data drive circuit capable of increasing clock and data recovery stability by generating a clock synchronized with input data, a clock recovery method thereof, and a display drive device having the same, and the data drive circuit according to an aspect includes a receiver including a clock and data recovery part configured to recover a test data pattern from input data using an internal clock, and a data comparator configured to compare the recovered test data pattern with a predetermined reference data pattern to generate a control signal according to a degree of asynchronicity between the recovered test data pattern and the reference data pattern, wherein the clock and data recovery part recovers a clock synchronized with the input data according to the control signal, and recovers control information and image data from the input data using the recovered clock.Type: GrantFiled: December 14, 2021Date of Patent: September 5, 2023Assignee: LX SEMICON CO., LTD.Inventors: Jong Hwi Park, Gi Baek Choi, Yong Jung Kwon, Jung Bae Yun
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Publication number: 20230215325Abstract: An embodiment provides a latch circuit which outputs, to a digital analog converter (DAC), a digital signal including grayscale data, the latch circuit including a first latch configured to store the digital signal and a second latch configured to output the digital signal by controlling first timing at which a level of a first signal included in the digital signal becomes an enable level, based on a center grayscale. The grayscale data includes first grayscale data and second grayscale data.Type: ApplicationFiled: December 19, 2022Publication date: July 6, 2023Applicant: LX Semicon Co., Ltd.Inventors: Gi Baek CHOI, Jong Hwi PARK, Yong Jung KWON, Jung Bae YUN
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Publication number: 20230103512Abstract: The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.Type: ApplicationFiled: December 9, 2022Publication date: April 6, 2023Inventors: Yong Jung Kwon, Sang Min Lee, Jong Hwi Park, Jung Bae Yun
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Patent number: 11532284Abstract: The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.Type: GrantFiled: November 10, 2021Date of Patent: December 20, 2022Assignee: LX Semicon Co., Ltd.Inventors: Yong Jung Kwon, Sang Min Lee, Jong Hwi Park, Jung Bae Yun
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Publication number: 20220366823Abstract: The present disclosure relates to a pixel sensing circuit in which a test is performed only on selected specific channels among channels of the pixel sensing circuit and the total test time of the pixel sensing circuit and data throughput for the test may be reduced.Type: ApplicationFiled: September 28, 2020Publication date: November 17, 2022Applicant: LX Semicon Co., Ltd.Inventors: Seung Hwan JI, Yong Jung KWON, Ho Sung HONG, Jung Bae YUN
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Patent number: 11499933Abstract: A method of manufacturing a graphene-tin oxide nanocomposite comprises dispersing graphene and tin oxide in an organic solvent to prepare a dispersion solution, drying the dispersion solution to obtain a powdery mixture, and irradiating the mixture with microwaves to obtain a graphene-tin oxide nanocomposite. Irradiation of graphene and tin oxide with microwaves results in the simplification of the manufacturing process of graphene-tin oxide nanocomposites and a decrease in manufacturing time and cost, and produce graphene-tin oxide nanocomposites at low temperatures. Further, the graphene-tin oxide nanocomposite with improved sensitivity to NO2 gas may be produced.Type: GrantFiled: May 17, 2018Date of Patent: November 15, 2022Assignees: LG DISPLAY CO., LTD., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Sung Pil Ryu, Ki Seok Chang, Wook Sung Kim, Han Saem Kang, Hyoun Woo Kim, Yong Jung Kwon, Myong Sik Choi, Sung Yong Kang, Jae Hoon Bang
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Publication number: 20220198989Abstract: The present disclosure relates to a data drive circuit capable of increasing clock and data recovery stability by generating a clock synchronized with input data, a clock recovery method thereof, and a display drive device having the same, and the data drive circuit according to an aspect includes a receiver including a clock and data recovery part configured to recover a test data pattern from input data using an internal clock, and a data comparator configured to compare the recovered test data pattern with a predetermined reference data pattern to generate a control signal according to a degree of asynchronicity between the recovered test data pattern and the reference data pattern, wherein the clock and data recovery part recovers a clock synchronized with the input data according to the control signal, and recovers control information and image data from the input data using the recovered clock.Type: ApplicationFiled: December 14, 2021Publication date: June 23, 2022Inventors: Jong Hwi PARK, Gi Baek CHOI, Yong Jung KWON, Jung Bae YUN
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Publication number: 20220157244Abstract: The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.Type: ApplicationFiled: November 10, 2021Publication date: May 19, 2022Inventors: Yong Jung Kwon, Sang Min Lee, Jong Hwi Park, Jung Bae Yun
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Patent number: 11127337Abstract: The present embodiment relates to a device for driving pixels arranged on a display panel, and a data driving device according to the present embodiment can transmit image data to a plurality of channel groups by including two or more mapping units for mapping the image data to a channel link or by using one data mapping unit connected to a plurality of multiplexers.Type: GrantFiled: December 17, 2018Date of Patent: September 21, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Min Young Jeong, Yong Jung Kwon, Ho Sung Hong, Jung Bae Yun, Jeung Hie Choi
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Patent number: 11004402Abstract: An embodiment provides a technology relating to data transmission or reception in a display panel. In the embodiment, a plurality of integrated circuits sharing a data line may transmit an indication signal through signal lines connected 1:1 to the circuits, and transmit data through the data line in response to the indication signal.Type: GrantFiled: November 29, 2018Date of Patent: May 11, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Seung Hwan Ji, Min Young Jeong, Yong Jung Kwon, Jung Bae Yun, Jeung Hie Choi
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Patent number: 10964271Abstract: Disclosed are a source driver and a display device using the same, and the display device includes the source driver that generates sensing data by performing a pre-processing operation on pixel data obtained by sensing display pixels, and a timing controller that generates correction data for correction for pixel characteristics by performing a post-processing operation on the sensing data.Type: GrantFiled: December 12, 2017Date of Patent: March 30, 2021Assignee: Silicon Works Co., Ltd.Inventors: Yong Jung Kwon, Min Young Jeong, Sang Min Lee, Jeung Hie Choi
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Publication number: 20200312218Abstract: The present embodiment relates to a device for driving pixels arranged on a display panel, and a data driving device according to the present embodiment can transmit image data to a plurality of channel groups by including two or more mapping units for mapping the image data to a channel link or by using one data mapping unit connected to a plurality of multiplexers.Type: ApplicationFiled: December 17, 2018Publication date: October 1, 2020Inventors: Min Young Jeong, Yong Jung Kwon, Ho Sung Hong, Jung Bae Yun, Jeung Hie Choi
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Publication number: 20200312249Abstract: An embodiment provides a technology relating to data transmission or reception in a display panel. In the embodiment, a plurality of integrated circuits sharing a data line may transmit an indication signal through signal lines connected 1:1 to the circuits, and transmit data through the data line in response to the indication signal.Type: ApplicationFiled: November 29, 2018Publication date: October 1, 2020Inventors: Seung Hwan Ji, Min Young Jeong, Yong Jung Kwon, Jung Bae Yun, Jeung Hie Choi
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Publication number: 20200166469Abstract: A method of manufacturing a graphene-tin oxide nanocomposite comprises dispersing graphene and tin oxide in an organic solvent to prepare a dispersion solution, drying the dispersion solution to obtain a powdery mixture, and irradiating the mixture with microwaves to obtain a graphene-tin oxide nanocomposite. Irradiation of graphene and tin oxide with microwaves results in the simplification of the manufacturing process of graphene-tin oxide nanocomposites and a decrease in manufacturing time and cost, and produce graphene-tin oxide nanocomposites at low temperatures. Further, the graphene-tin oxide nanocomposite with improved sensitivity to NO2 gas may be produced.Type: ApplicationFiled: May 17, 2018Publication date: May 28, 2020Applicants: LG Display Co., Ltd., Industry-University Cooperation Foundation Hanyang UniversityInventors: Sung Pil RYU, Ki Seok CHANG, Wook Sung KIM, Han Saem KANG, Hyoun Woo KIM, Yong Jung KWON, Myong Sik CHOI, Sung Yong KANG, Jae Hoon BANG
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Publication number: 20190318694Abstract: Disclosed are a source driver and a display device using the same, and the display device includes the source driver that generates sensing data by performing a pre-processing operation on pixel data obtained by sensing display pixels, and a timing controller that generates correction data for correction for pixel characteristics by performing a post-processing operation on the sensing data.Type: ApplicationFiled: December 12, 2017Publication date: October 17, 2019Applicant: SILICON WORKS CO., LTD.Inventors: Yong Jung KWON, Min Young JEONG, Sang Min LEE, Jeung Hie CHOI
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Patent number: 10403196Abstract: Disclosed is a source driver including a sensing circuit capable of sensing whether a short occurred between a data output line and a power line. The source driver may include: an output circuit configured to output a preset voltage to a display panel in a checking mode; and a sensing circuit configured to sense whether data output lines connecting the output circuit and the display panel are shorted, using the preset voltage, and output a sensing result signal.Type: GrantFiled: June 14, 2016Date of Patent: September 3, 2019Assignee: SILICON WORKS CO., LTD.Inventors: Ju Young Shin, Jung Bae Yun, Yong Jung Kwon, Jeung Hie Choi
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Patent number: 10089918Abstract: Disclosed is a display device capable of assigning unique information to a plurality of source drivers and easily controlling an operation sequence and operation time. The display device may include: a timing controller configured to generate an input signal having a clock signal embedded between data signals each including a pixel data packet and a control data packet, and provide the input signal to a source driver; and a source driver configured to receive the input signal, sense pixel information of a display panel, and enabled to transmit the pixel information to the timing controller in response to preset information contained in the control data packet, and configured to transmit the pixel information to the timing controller during an operation time corresponding to operation time information contained in the control data packet.Type: GrantFiled: August 18, 2016Date of Patent: October 2, 2018Assignee: SILICON WORKS CO., LTD.Inventors: Yong Jung Kwon, Jeong Bae Yun, Jeung Hie Choi
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Patent number: 9961762Abstract: The present invention relates to a circuit board for COF (Chip on Film) package, which is capable of preventing an influence of coupling noise on a core block of an integrated circuit. The circuit board may include: a base film defined a core block region overlapping a predetermined location of a core block within an integrated circuit and having the same area as or larger area than the core block; first routing patterns formed on the base film; and a first block pattern covering the core block region. The first routing patterns may be formed outside the first block pattern at the same layer as the first block pattern.Type: GrantFiled: January 18, 2017Date of Patent: May 1, 2018Assignee: SILICON WORKS CO., LTD.Inventors: Ju Young Shin, Jung Bae Yun, Yong Jung Kwon, Jeung Hie Choi
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Publication number: 20170208679Abstract: The present invention relates to a circuit board for COF (Chip on Film) package, which is capable of preventing an influence of coupling noise on a core block of an integrated circuit. The circuit board may include: a base film defined a core block region overlapping a predetermined location of a core block within an integrated circuit and having the same area as or larger area than the core block; first routing patterns formed on the base film; and a first block pattern covering the core block region. The first routing patterns may be formed outside the first block pattern at the same layer as the first block pattern.Type: ApplicationFiled: January 18, 2017Publication date: July 20, 2017Applicant: SILICON WORKS CO., LTD.Inventors: Ju Young SHIN, Jung Bae Yun, Yong Jung Kwon, Jeung Hie Choi
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Patent number: D1017611Type: GrantFiled: June 26, 2023Date of Patent: March 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ho Jung Lee, Kyung Hyun Ko, Yong Woo Koo, Jun Il Kwon, Pablo Kim, Young-Su Kim, Jun Woo Kim, Hoon Kim, Hye Suk An, Hyun Joo Lee, Ki Ho Lim