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公开(公告)号：US20230152922A1
公开(公告)日：2023-05-18
申请号：US17809091
申请日：2022-06-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Keum Dong JUNG , Ji Woong KIM , Hyung Gun MA , Kyung Tea PARK , Moon Jae JEONG , Sang Hyun HEO
CPC classification number: G06F3/04166 , G06F3/0446
Abstract: 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.
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公开(公告)号：US20230061354A1
公开(公告)日：2023-03-02
申请号：US17721465
申请日：2022-04-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Kyung Tea PARK , Ji Woong KIM , Hyung Gun MA , Seong An PARK , Seong Joo LEE , Tae Hun LEE , Sang Hyun HEO
Abstract: 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. An analog-to-digital converter is configured to output a sensing value based on the demodulated differential signals.
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公开(公告)号：US20230326384A1
公开(公告)日：2023-10-12
申请号：US18210960
申请日：2023-06-16
Inventor： Hyung Gun MA , Gyu Wan LIM , Gyeong Gu KANG , Hyun Sik KIM , Keum Dong JUNG , Moon Jae JEONG
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G3/3208 , G09G2310/027 , G09G2300/0871
Abstract: 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.
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4.发明申请公开(公告)号：US20230073395A1
公开(公告)日：2023-03-09
申请号：US17986675
申请日：2022-11-14
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyung Gun MA , Oh Jo KWON , Ji Woong KIM , Jun Yong SONG , Seong Joo LEE , Sang Hyun HEO
IPC: G09G3/32
Abstract: 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.
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公开(公告)号：US20230117808A1
公开(公告)日：2023-04-20
申请号：US17730549
申请日：2022-04-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyung Gun MA , Moon Jae JEONG
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20250006097A1
公开(公告)日：2025-01-02
申请号：US18611074
申请日：2024-03-20
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun HEO , Joon Chul GOH , Oh Jo KWON , Dong Soo KIM , Hyung Gun MA , Jung Hun YI
IPC: G09G3/20 , G09G3/3233 , H10K59/131
Abstract: 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.
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公开(公告)号：US20230176668A1
公开(公告)日：2023-06-08
申请号：US17819071
申请日：2022-08-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyung Gun MA , Sang Hyun Heo , Moon Jae Jeong
CPC classification number: G06F3/0412 , G06F3/04166 , G09G3/2096 , H03F3/68 , H03F3/70 , G09G2310/0291 , H03F2200/168
Abstract: 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.
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公开(公告)号：US20240395192A1
公开(公告)日：2024-11-28
申请号：US18590940
申请日：2024-02-29
Applicant: Samsung Display Co., Ltd.
Inventor： Sang Hyun HEO , Joon Chul GOH , Oh Jo KWON , Dong Soo KIM , Hyung Gun MA , Jung Hun YI
IPC: G09G3/32
Abstract: 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.
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公开(公告)号：US20230072385A1
公开(公告)日：2023-03-09
申请号：US17702268
申请日：2022-03-23
Applicant: Samsung Display Co., LTD.
Inventor： Ji Woong KIM , Hyung Gun MA , Kyung Tea PARK , Seong Joo LEE , Keum Dong JUNG , Sang Hyun HEO
Abstract: A sensor device includes first sensors; second sensors and the first sensors of mutual capacitance; a sensor transmitter electrically connected to the first sensors, the sensor transmitter supplying driving signals to the first sensors; a sensor receiver electrically connected to the second sensors, the sensor receiver receiving sensing signals from the second sensors, the sensor receiver demodulating the sensing signals by using demodulation clock signals; and a signal generator generating a basic clock signal, and generating the driving signals and the demodulation clock signals to be synchronized with the basic clock signal.
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公开(公告)号：US20230031695A1
公开(公告)日：2023-02-02
申请号：US17671969
申请日：2022-02-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Hyung Gun MA , Ji Woong KIM , Jun Yong SONG , Seong Joo LEE , Keum Dong JUNG , Sang Hyun HEO
IPC: G09G3/3266 , H01L25/18
Abstract: 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.
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