Patents by Inventor Kyung Min Shin
Kyung Min Shin 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: 20240176378Abstract: Proposed is a band gap reference circuit under a low supply voltage capable of generating a band gap reference voltage even under a low supply voltage by using a plurality of bias voltages separately generated and a current source using these bias voltages without using a diode connected structure used in the related art while not being affected by limitations in the operating voltage of a bipolar transistor. The band gap reference circuit under a low supply voltage includes a voltage reference main circuit configured to generate a first node voltage and a second node voltage in response to a first bias voltage and a band gap reference voltage, and a transimpedance amplifier configured to generate the band gap reference voltage by amplifying a difference between the first node voltage and the second node voltage using the first bias voltage, a second bias voltage, and a third bias voltage.Type: ApplicationFiled: November 24, 2023Publication date: May 30, 2024Applicant: LX SEMICON CO., LTD.Inventors: Harim CHOI, Kyung Min SHIN, Yongsung AHN
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Publication number: 20240174919Abstract: An embodiment of the disclosure provides AgInGaS quantum dots, a method for preparing the same, and an electronic device capable of controlling the emission wavelength according to the composition of Ag, In, and Ga precursors constituting a quantum dot core.Type: ApplicationFiled: November 22, 2023Publication date: May 30, 2024Inventors: Han Byule LIM, Chang Min Lee, Jong Moon Shin, Kyung Soo Kim
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Publication number: 20240178808Abstract: The present invention provides an offset free differential amplifier and an offset free method of a differential amplifier capable of removing an offset of a differential amplifier by selectively using at least one of an auto zero method and a chopping method. The offset free differential amplifier includes a differential amplifier; a chopping switch unit that is connected to two input terminals and one output terminal of the differential amplifier in response to a chopping control signal and removes an average offset of the differential amplifier; and an auto-zero switch unit that is connected to the differential amplifier and the chopping switch unit in response to an auto-zero switch control signal and removes an absolute offset of the differential amplifier.Type: ApplicationFiled: November 24, 2023Publication date: May 30, 2024Applicant: LX SEMICON CO., LTD.Inventors: Harim CHOI, Jiwon KIM, Hyo Joong KIM, Kyung Min SHIN, Yongsung AHN
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Patent number: 11976164Abstract: The present disclosure relates to a method of preparing an organic zinc catalyst through solid phase blending that does not require a solvent and a washing process, and a method of preparing a polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby.Type: GrantFiled: December 20, 2019Date of Patent: May 7, 2024Assignee: LG Chem, Ltd.Inventors: Sung Kyoung Kim, Seung Young Park, Sang Cheol Shin, Kyung Min Min
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Publication number: 20240128930Abstract: The present disclosure relates to an offset elimination operation of an internal operational amplifier of a data driving circuit and relates to a technique that applies different offset elimination methods for each position of an operational amplifier.Type: ApplicationFiled: October 13, 2023Publication date: April 18, 2024Applicant: LX SEMICON CO., LTD.Inventors: Yong Sung AHN, Ji Won KIM, Hyo Joong KIM, Kyung Min SHIN, Kyu Tae LEE, Ha Rim CHOI
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Patent number: 11335274Abstract: An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.Type: GrantFiled: September 14, 2020Date of Patent: May 17, 2022Assignee: SILICON WORKS CO., LTD.Inventors: Jeong Lee, Kyung Min Shin, Yong Sung Ahn, Gi Woong Shin
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Patent number: 11308877Abstract: Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.Type: GrantFiled: November 20, 2020Date of Patent: April 19, 2022Assignee: Silicon Works Co., Ltd.Inventors: Jeong Lee, Sung Ha Kim, Yong Sung Ahn, Kyung Min Shin, Jung Ryeol Park
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Patent number: 11294524Abstract: The present disclosure provides a technology for mitigating retransmission in a low ground mass (LGM) state and improving the touch sensitivity by not driving two adjacent sensor electrodes simultaneously.Type: GrantFiled: December 15, 2020Date of Patent: April 5, 2022Assignee: SILICON WORKS CO., LTDInventors: Hee Jin Lee, Jae Hwan Lee, Jeong Kwon Nam, Kyu Tae Lee, Hyun Soo Chung, Jin Yoon Jang, Hee Ra Yun, Kyung Min Shin, Mun Seok Kang
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Publication number: 20210193057Abstract: Disclosed are a source driver for sensing the degree of deterioration in pixels in some regions of a display panel and compensating for the deterioration in the display panel based on the sensed degree, by considering a characteristic in which pixels included in each display panel similarly deteriorate, and a display device including the same. The display device may include a display panel including pixels, a sensing circuit configured to provide sensing data by sensing the degree of deterioration in pixels in at least one first region of the display panel, and a compensation circuit configured to calculate an amount of compensation of each of the pixels in the first region using the sensing data and compensate for the deterioration in the pixels in the first region and pixels in a second region whose degree of deterioration is not sensed, based on the amount of compensation.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Applicant: Silicon Works Co., Ltd.Inventors: Kyung Min Shin, Sung Ha Kim, Yong Sung Ahn, Jeong Lee, Jung Ryeol Park
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Publication number: 20210191571Abstract: The present disclosure provides a technology for mitigating retransmission in a low ground mass (LGM) state and improving the touch sensitivity by not driving two adjacent sensor electrodes simultaneously.Type: ApplicationFiled: December 15, 2020Publication date: June 24, 2021Inventors: Hee Jin LEE, Jae Hwan LEE, Jeong Kwon NAM, Kyu Tae LEE, Hyun Soo CHUNG, Jin Yoon JANG, Hee Ra YUN, Kyung Min SHIN, Mun Seok KANG
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Patent number: 11029777Abstract: Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode through a touch sensing line and generating first and second currents corresponding to a buffered signal, a plurality of current mirror unit respectively connected to the plurality of buffers, a plurality of filter circuits generating a first filter signal and a second filter signal by removing common noise included in a first output signal output from an nth current mirror unit of the plurality of current mirror units and a second output signal output from an (n?1)th current mirror unit of the plurality of current mirror units, and a plurality of integrators respectively connected to the plurality of filter circuits.Type: GrantFiled: December 18, 2019Date of Patent: June 8, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Hee Jin Lee, Jae Hwan Lee, Jeong Kwon Nam, Kyu Tae Lee, Hyun Soo Chung, Jin Yoon Jang, Hee Ra Yun, Kyung Min Shin, Mun Seok Kang
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Publication number: 20210150981Abstract: Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.Type: ApplicationFiled: November 20, 2020Publication date: May 20, 2021Applicant: Silicon Works Co., Ltd.Inventors: Jeong Lee, Sung Ha Kim, Yong Sung Ahn, Kyung Min Shin, Jung Ryeol Park
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Patent number: 11003283Abstract: An embodiment provides a touch sensing device configured to divide one driving cycle into two parts and to summate or subtract touch sensing data regarding respective parts, thereby removing periodic noise.Type: GrantFiled: December 17, 2019Date of Patent: May 11, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Mohamed Gamal Ahmed Mohamed, Mun Seok Kang, Hee Jin Lee, Jun Seop Lee, Kyung Min Shin
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Publication number: 20210082352Abstract: An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.Type: ApplicationFiled: September 14, 2020Publication date: March 18, 2021Inventors: Jeong LEE, Kyung Min SHIN, Yong Sung AHN, Gi Woong SHIN
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Patent number: 10942606Abstract: A touch sensing device of a current driving type, which separately drives a parasitic capacitor by using an electric charge controller, includes a parasitic capacitance charger connected to a touch sensing line to charge a parasitic capacitor of a touch electrode connected to the touch sensing line with a predetermined charging current during a charging period and a sensing unit connected to the touch sensing line during a first driving period to drive a capacitor of the touch electrode with a first driving current corresponding to a difference voltage between a first voltage, charged into the parasitic capacitor when a touch does not occur, and a second voltage charged into the parasitic capacitor when a touch occurs and to sense a first touch voltage of the capacitor based on the first driving current during a first sensing period.Type: GrantFiled: December 18, 2019Date of Patent: March 9, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Hee Jin Lee, Jae Hwan Lee, Jeong Kwon Nam, Kyu Tae Lee, Hyun Soo Chung, Jin Yoon Jang, Hee Ra Yun, Kyung Min Shin, Mun Seok Kang
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Patent number: 10942604Abstract: Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode and generating first and second currents corresponding to a buffered signal, a plurality of current mirror units generating a first output signal using a first mirror current generated through mirroring of the first current and a third mirror current generated through mirroring of the second current and generate a second output signal using a second mirror current generated through mirroring of the first current and a fourth mirror current generated through mirroring of the second current, and a plurality of integrators integrating a difference between the first output signal from an nth current mirror unit and the second output signal from an (n?1)th current mirror unit.Type: GrantFiled: December 18, 2019Date of Patent: March 9, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Hee Jin Lee, Jae Hwan Lee, Jeong Kwon Nam, Kyu Tae Lee, Hyun Soo Chung, Jin Yoon Jang, Hee Ra Yun, Kyung Min Shin, Mun Seok Kang
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Publication number: 20200210020Abstract: Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode and generating first and second currents corresponding to a buffered signal, a plurality of current mirror units generating a first output signal using a first mirror current generated through mirroring of the first current and a third mirror current generated through mirroring of the second current and generate a second output signal using a second mirror current generated through mirroring of the first current and a fourth mirror current generated through mirroring of the second current, and a plurality of integrators integrating a difference between the first output signal from an nth current mirror unit and the second output signal from an (n?1)th current mirror unit.Type: ApplicationFiled: December 18, 2019Publication date: July 2, 2020Inventors: Hee Jin LEE, Jae Hwan LEE, Jeong Kwon NAM, Kyu Tae LEE, Hyun Soo CHUNG, Jin Yoon JANG, Hee Ra YUN, Kyung Min SHIN, Mun Seok KANG
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Publication number: 20200210046Abstract: A touch sensing device of a current driving type, which separately drives a parasitic capacitor by using an electric charge controller, includes a parasitic capacitance charger connected to a touch sensing line to charge a parasitic capacitor of a touch electrode connected to the touch sensing line with a predetermined charging current during a charging period and a sensing unit connected to the touch sensing line during a first driving period to drive a capacitor of the touch electrode with a first driving current corresponding to a difference voltage between a first voltage, charged into the parasitic capacitor when a touch does not occur, and a second voltage charged into the parasitic capacitor when a touch occurs and to sense a first touch voltage of the capacitor based on the first driving current during a first sensing period.Type: ApplicationFiled: December 18, 2019Publication date: July 2, 2020Inventors: Hee Jin LEE, Jae Hwan LEE, Jeong Kwon NAM, Kyu Tae LEE, Hyun Soo CHUNG, Jin Yoon JANG, Hee Ra YUN, Kyung Min SHIN, Mun Seok KANG
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Publication number: 20200210045Abstract: An embodiment provides a touch sensing device configured to divide one driving cycle into two parts and to summate or subtract touch sensing data regarding respective parts, thereby removing periodic noise.Type: ApplicationFiled: December 17, 2019Publication date: July 2, 2020Inventors: Mohamed Gamal Ahmed MOHAMED, Mun Seok KANG, Hee Jin LEE, Jun Seop LEE, Kyung Min SHIN
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Publication number: 20200210008Abstract: Disclosed is a touch sensing device for preventing touch sensing performance from being reduced by a parasitic capacitance. The touch sensing device includes a plurality of buffers buffering a difference between a reference signal and a reception signal received from a touch electrode through a touch sensing line and generating first and second currents corresponding to a buffered signal, a plurality of current mirror unit respectively connected to the plurality of buffers, a plurality of filter circuits generating a first filter signal and a second filter signal by removing common noise included in a first output signal output from an nth current mirror unit of the plurality of current mirror units and a second output signal output from an (n?1)th current mirror unit of the plurality of current mirror units, and a plurality of integrators respectively connected to the plurality of filter circuits.Type: ApplicationFiled: December 18, 2019Publication date: July 2, 2020Inventors: Hee Jin LEE, Jae Hwan LEE, Jeong Kwon NAM, Kyu Tae LEE, Hyun Soo CHUNG, Jin Yoon JANG, Hee Ra YUN, Kyung Min SHIN, Mun Seok KANG