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公开(公告)号：US20240176450A1
公开(公告)日：2024-05-30
申请号：US18432158
申请日：2024-02-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： JI WOONG KIM , Moon Jae Jeong , Hyung Gun Ma , Tae Hun Lee , Keum Dong Jung , Sang Hyun Heo
CPC classification number: G06F3/04182 , G06F3/0446 , G06F3/0447
Abstract: 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.
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公开(公告)号：US11947764B2
公开(公告)日：2024-04-02
申请号：US17750566
申请日：2022-05-23
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ji Woong Kim , Oh Jo Kwon , Kyung Tea Park , Keum Dong Jung , Sang Hyun Heo
CPC classification number: G06F3/0446 , G06F3/04166 , H03M1/662
Abstract: An input sensing unit includes a touch sensing unit, which includes a plurality of driving electrodes, a plurality of sensing electrodes, and a driving signal generating unit which provides driving signals to the driving electrodes. The sensing electrodes are insulated from and intersect the driving electrodes. The driving signal generating unit includes touch drivers connected to driving electrodes and a digital-to-analog converter configured to provide a first signal or a second signal, and each of the touch drivers is connected to a preset number of driving electrodes among the driving electrodes.
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公开(公告)号：US11893186B2
公开(公告)日：2024-02-06
申请号：US18176440
申请日：2023-02-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ji Woong Kim , Moon Jae Jeong , Hyung Gun Ma , Tae Hun Lee , Keum Dong Jung , Sang Hyun Heo
CPC classification number: G06F3/04182 , G06F3/0446 , G06F3/0447
Abstract: 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.
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公开(公告)号：US20230305657A1
公开(公告)日：2023-09-28
申请号：US18075845
申请日：2022-12-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Keum Dong JUNG , Oh Jo Kwon , Ji Woong Kim , Hyung Gun Ma , Seong An Park , Sang Hyun Heo
CPC classification number: G06F3/0418 , G06F1/04 , G06F3/0446
Abstract: 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.
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公开(公告)号：US11908422B2
公开(公告)日：2024-02-20
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: G09G3/3275 , H03M1/66 , G09G3/32
CPC classification number: G09G3/3275 , H03M1/66 , G09G3/32 , G09G2310/027 , G09G2310/0259 , G09G2310/0291 , G09G2330/021 , G09G2330/028
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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Patent Agency Ranking
公开(公告)号：US20240004499A1
公开(公告)日：2024-01-04
申请号：US18176440
申请日：2023-02-28
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： JI WOONG KIM , Moon Jae Jeong , Hyung Gun Ma , Tae Hun Lee , Keum Dong Jung , Sang Hyun Heo
CPC classification number: G06F3/04182 , G06F3/0446 , G06F3/0447
Abstract: 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.
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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：US12260800B2
公开(公告)日：2025-03-25
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：US12147623B2
公开(公告)日：2024-11-19
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
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：US11869438B2
公开(公告)日：2024-01-09
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: G09G3/32 , G09G3/3266 , H01L25/18 , G09G3/3275
CPC classification number: G09G3/3266 , H01L25/18 , G09G3/3275 , G09G2300/043 , G09G2300/0426 , G09G2300/0814 , G09G2310/0202 , G09G2310/0286 , G09G2310/0289 , G09G2310/0291 , G09G2320/0219
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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