Patents by Inventor Hyung Gun Ma
Hyung Gun Ma 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: 12260800Abstract: A pixel may include: a first transistor including a second electrode, a first electrode electrically connected to a first power line, and a gate electrode connected to a first node; a second transistor including a second electrode, a first electrode electrically connected to a data line, and a gate electrode electrically connected to a first scan line; a third transistor connected between the first node and the data line, and including a gate electrode electrically connected to a second scan line; a first capacitor including a first electrode connected to the second electrode of the second transistor, and a second electrode connected to the first node; a second capacitor connected between the first power line and the first node; and a light emitting element between a second power line and the first transistor, and including a second electrode electrically connected to the second power line.Type: GrantFiled: March 20, 2024Date of Patent: March 25, 2025Assignee: Samsung Display Co., Ltd.Inventors: Sang Hyun Heo, Joon Chul Goh, Oh Jo Kwon, Dong Soo Kim, Hyung Gun Ma, Jung Hun Yi
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Publication number: 20250006097Abstract: A pixel may include: a first transistor including a second electrode, a first electrode electrically connected to a first power line, and a gate electrode connected to a first node; a second transistor including a second electrode, a first electrode electrically connected to a data line, and a gate electrode electrically connected to a first scan line; a third transistor connected between the first node and the data line, and including a gate electrode electrically connected to a second scan line; a first capacitor including a first electrode connected to the second electrode of the second transistor, and a second electrode connected to the first node; a second capacitor connected between the first power line and the first node; and a light emitting element between a second power line and the first transistor, and including a second electrode electrically connected to the second power line.Type: ApplicationFiled: March 20, 2024Publication date: January 2, 2025Inventors: Sang Hyun HEO, Joon Chul GOH, Oh Jo KWON, Dong Soo KIM, Hyung Gun MA, Jung Hun YI
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Publication number: 20240395192Abstract: According to embodiments of the disclosure, a pixel includes a driving transistor including a gate electrode, a first electrode electrically connected to a first power line and a second electrode electrically connected to a light emitting element, a body of a semiconductive layer constituting the driving transistor being electrically connected to the first power line.Type: ApplicationFiled: February 29, 2024Publication date: November 28, 2024Inventors: Sang Hyun HEO, Joon Chul GOH, Oh Jo KWON, Dong Soo KIM, Hyung Gun MA, Jung Hun YI
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Patent number: 12147623Abstract: A sensor device of the present invention includes first sensors receiving a plurality of driving signals; second sensors outputting a plurality of sensing signals in response to the driving signals; and a sensor receiver connected receiving the sensing signals from the second sensors, and including a band pass filter filtering the sensing signals. The band pass filter includes a multi-path filter in which a frequency of the driving signals is set as a center frequency; a gain amplifier amplifying signals filtered through the multi-path filter according to a predetermined gain value; and a buffer isolating the multi-path filter and the gain amplifier from each other.Type: GrantFiled: August 11, 2022Date of Patent: November 19, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Gun Ma, Sang Hyun Heo, Moon Jae Jeong
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Patent number: 12130987Abstract: A sensor device including: first sensors; second sensors configured to form capacitances with the first sensors; a sensor transmitter connected to the first sensors and configured to supply driving signals having a first frequency to the first sensors; and a sensor receiver connected to the second sensors and configured to receive sensing signals from the second sensors, wherein the sensor receiver includes: a multipath filter having a center frequency set to the first frequency; and a first chopper integrator connected to the multipath filter, and having a center frequency set to the first frequency.Type: GrantFiled: December 6, 2022Date of Patent: October 29, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Oh Jo Kwon, Ji Woong Kim, Hyung Gun Ma, Seong An Park, Sang Hyun Heo
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Patent number: 12125426Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: GrantFiled: June 16, 2023Date of Patent: October 22, 2024Assignees: SAMSUNG DISPLAY CO., LTD, KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
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Patent number: 12093489Abstract: A sensor device includes: first sensors; second sensors generating a mutual capacitance with the first sensors; a sensor transmitter connected to the first sensors, the sensor transmitter supplying driving signals to the first sensors; and a sensor receiver connected to the second sensors. The sensor receiver receives sensing signals from the second sensors. The sensor receiver includes a band pass filter including a plurality of paths connected in parallel. A first path among the plurality of paths sequentially includes an input mixer, a filter, and an output mixer.Type: GrantFiled: April 27, 2022Date of Patent: September 17, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Gun Ma, Moon Jae Jeong
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Publication number: 20240250664Abstract: A band pass filter circuit includes an amplifier circuit having a first input terminal to receive a first analog signal; a second input terminal to receive a second analog signal; first and second output terminals; capacitors; and switches. In a first switching mode, the switches are controlled so that the amplifier circuit and a first group of the capacitors connected between the input and output terminals operate as a first band pass filter filtering the first and second analog signals in a differential mode. In a second switching mode, the switches are controlled so that the amplifier circuit and second and third groups of the capacitors form second band pass filters filtering each of the first and second analog signals in a single-ended mode.Type: ApplicationFiled: November 6, 2023Publication date: July 25, 2024Inventors: HYUNG GUN MA, DONG KYU LEE, JI WOONG KIM
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Publication number: 20240176450Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: ApplicationFiled: February 5, 2024Publication date: May 30, 2024Inventors: JI WOONG KIM, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo
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Patent number: 11908422Abstract: A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.Type: GrantFiled: November 14, 2022Date of Patent: February 20, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Gun Ma, Oh Jo Kwon, Ji Woong Kim, Jun Yong Song, Seong Joo Lee, Sang Hyun Heo
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Patent number: 11893186Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: GrantFiled: February 28, 2023Date of Patent: February 6, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Woong Kim, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo
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Patent number: 11869438Abstract: A display device includes a display panel including pixels connected to scan lines and data lines, and connection line connected to the scan lines, and a scan driver which drives scan lines. The scan driver includes a scan signal output circuit which outputs a first output signal as a scan signal to a first output line and outputs a second output signal to a second output line, a signal distribution circuit which outputs the first output signal to a first or third connection line and outputs the second output signal to a second or fourth connection line in response to first and second distribution control signals, and a scan-off circuit which outputs gate-off level to at least one of the scan lines in response to first and second scan-off control signals.Type: GrantFiled: February 15, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyung Gun Ma, Ji Woong Kim, Jun Yong Song, Seong Joo Lee, Keum Dong Jung, Sang Hyun Heo
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Patent number: 11868560Abstract: A sensor device of the present invention includes first sensors; second sensors forming capacitance with the first sensors; a multi-frequency generator generating a first frequency signal and a second frequency signal having different frequencies; a sensor transmitter supplying first driving signals based on the first frequency signal to first sensors of a first group among the first sensors, supplying second driving signals based on the second frequency signal to first sensors of a second group among the first sensors, and simultaneously supplying the first driving signals and the second driving signals; and a sensor receiver simultaneously receiving sensing signals from the second sensors.Type: GrantFiled: June 27, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Ji Woong Kim, Hyung Gun Ma, Kyung Tea Park, Moon Jae Jeong, Sang Hyun Heo
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Publication number: 20240004499Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.Type: ApplicationFiled: February 28, 2023Publication date: January 4, 2024Inventors: JI WOONG KIM, Moon Jae Jeong, Hyung Gun Ma, Tae Hun Lee, Keum Dong Jung, Sang Hyun Heo
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Publication number: 20230326384Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: ApplicationFiled: June 16, 2023Publication date: October 12, 2023Inventors: Hyung Gun MA, Gyu Wan LIM, Gyeong Gu KANG, Hyun Sik KIM, Keum Dong JUNG, Moon Jae JEONG
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Publication number: 20230305657Abstract: A sensor device including: first sensors; second sensors configured to form capacitances with the first sensors; a sensor transmitter connected to the first sensors and configured to supply driving signals having a first frequency to the first sensors; and a sensor receiver connected to the second sensors and configured to receive sensing signals from the second sensors, wherein the sensor receiver includes: a multipath filter having a center frequency set to the first frequency; and a first chopper integrator connected to the multipath filter, and having a center frequency set to the first frequency.Type: ApplicationFiled: December 6, 2022Publication date: September 28, 2023Inventors: Keum Dong JUNG, Oh Jo Kwon, Ji Woong Kim, Hyung Gun Ma, Seong An Park, Sang Hyun Heo
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Patent number: 11735103Abstract: An analog front-end includes a (1-1)-th charge amplifier configured to differentially amplify a first and second sensing signals provided to a (1-1)-th input terminal and a (1-2)-th input terminal, respectively, and output a (1-1)-th differential signal. A (1-2)-th charge amplifier is configured to differentially amplify the second sensing signal and a third sensing signal provided to a (1-3)-th input terminal and a (1-4)-th input terminal, respectively, and output a (1-2)-th differential signal. A second charge amplifier is configured to differentially amplify the (1-1)-th differential signal and the (1-2)-th differential signal provided to a (2-1)-th input terminal and a (2-2)-th input terminal, respectively, and output a (2-1)-th differential signal and a (2-2)-th differential signal. A demodulation circuit is configured to filter the (2-1)-th differential signal and the (2-2)-th differential signal and output demodulated differential signals.Type: GrantFiled: April 15, 2022Date of Patent: August 22, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Tea Park, Ji Woong Kim, Hyung Gun Ma, Seong An Park, Seong Joo Lee, Tae Hun Lee, Sang Hyun Heo
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Publication number: 20230260441Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: ApplicationFiled: November 11, 2022Publication date: August 17, 2023Inventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
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Patent number: 11721265Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.Type: GrantFiled: November 11, 2022Date of Patent: August 8, 2023Assignees: SAMSUNG DISPLAY CO., LTD., KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyung Gun Ma, Gyu Wan Lim, Gyeong Gu Kang, Hyun Sik Kim, Keum Dong Jung, Moon Jae Jeong
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Publication number: 20230176668Abstract: A sensor device of the present invention includes first sensors receiving a plurality of driving signals; second sensors outputting a plurality of sensing signals in response to the driving signals; and a sensor receiver connected receiving the sensing signals from the second sensors, and including a band pass filter filtering the sensing signals. The band pass filter includes a multi-path filter in which a frequency of the driving signals is set as a center frequency; a gain amplifier amplifying signals filtered through the multi-path filter according to a predetermined gain value; and a buffer isolating the multi-path filter and the gain amplifier from each other.Type: ApplicationFiled: August 11, 2022Publication date: June 8, 2023Inventors: Hyung Gun MA, Sang Hyun Heo, Moon Jae Jeong