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公开(公告)号：US20250069549A1
公开(公告)日：2025-02-27
申请号：US18944138
申请日：2024-11-12
Applicant: Samsung Display Co., Ltd.
Inventor： Goeun CHA , KyungTea PARK , KEUMDONG JUNG , Suk KIM
IPC: G09G3/3233 , G06F3/044 , G06V10/143 , G06V40/13 , G09G3/20
Abstract: A display panel including: a plurality of light emitting pixels which emit light in response to a first scan signal, a second scan signal, and a light emission control signal; and a plurality of light sensing pixels which output a sensing signal corresponding to external light in response to the first scan signal and the second scan signal, wherein each of the plurality of light emitting pixels includes an organic light emitting diode including an anode and a cathode, the cathode receiving a first driving voltage, and each of the plurality of light sensing pixels includes an organic photodiode including a first electrode and a second electrode, wherein the second electrode of the organic photodiode is electrically connected to the cathode of the organic light emitting diode to receive the first driving voltage.
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公开(公告)号：US20190251318A1
公开(公告)日：2019-08-15
申请号：US16149282
申请日：2018-10-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： KEUMDONG JUNG , Jaekyoung KIM , Wonsang PARK , Jongin BAEK , Yoshii KATSUMASA
CPC classification number: G06K9/0002 , H01L27/323 , H01L27/3234 , H01L27/3246 , H01L51/5253 , H01L51/5275
Abstract: The fingerprint sensing unit including: a substrate; a scan line disposed on the substrate and extending along a first direction; a common power line disposed on the substrate and extending along a second direction crossing the first direction; a thin film transistor connected to the scan line and the common power line; a sensing electrode connected to the thin film transistor; a first lens disposed on the sensing electrode and protruding in a direction away from the sensing electrode; and a first light blocking layer disposed on the sensing electrode and surrounding the first lens.
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公开(公告)号：US20230419913A1
公开(公告)日：2023-12-28
申请号：US18213956
申请日：2023-06-26
Applicant: SAmsung Display Co. Ltd.
Inventor： KEUMDONG JUNG , Jaesang KIM , JIWOONG KIM , HYUNGGUN MA , Taehun LEE , MOONJAE JEONG , SANGHYUN HEO
IPC: G09G3/3275 , G06F3/041
CPC classification number: G09G3/3275 , G06F3/0416 , G09G2310/027 , G09G2320/0276 , G09G2300/0814 , G09G2310/0291
Abstract: A display device including: a display panel including a plurality of pixels; an input sensor disposed on the display panel and including detection electrodes; a data driving circuit configured to output data signals or detection driving signals; and a selection circuit configured to provide the data signals to the plurality of pixels in response to a first enable signal and provide the detection driving signals to the detection electrodes in response to a second enable signal.
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公开(公告)号：US20220019760A1
公开(公告)日：2022-01-20
申请号：US17199324
申请日：2021-03-11
Applicant: Samsung Display Co., Ltd.
Inventor： GOEUN CHA , KEUMDONG JUNG , Yuna KIM , KYUNGTEA PARK , SOOJUNG LEE , KANGBIN JO
Abstract: A display device includes: a display panel to display an image by generating light, a sensor disposed under the display panel to convert a light energy into an electrical energy, a voltage generator connected to the sensor, and a capacitive element connected to the sensor. The electrical energy generated by the sensor is charged in the capacitive element. The sensor senses an object using the light reflected by the object.
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公开(公告)号：US20240256085A1
公开(公告)日：2024-08-01
申请号：US18377326
申请日：2023-10-06
Applicant: Samsung Display Co., Ltd. , The Industry & Academic Cooperation in Chungnam National University (IAC)
Inventor： SANGHYUN HEO , Juneun PARK , KEUMDONG JUNG
CPC classification number: G06F3/04182 , G06F3/04184 , G06F3/0446
Abstract: An electronic device including: a display layer; a sensor layer disposed on the display layer and including first and second electrodes; and a sensor driver to drive the sensor layer and including a signal generation circuit to transmit a transfer signal to the first electrodes, an input detection circuit to receive a sensing signal from the second electrodes, and a sensor control circuit, wherein the input detection circuit is configured to: receive first, second and third sensing signals, and wherein the sensor control circuit includes: a non-ideal element estimator to output a noise signal based on the second sensing signal and the third sensing signal; a calculator to output an output signal by adding or subtracting the first sensing signal and the noise signal; and a converter to output a coordinate signal by converting the output signal into a digital signal.
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Patent Agency Ranking
公开(公告)号：US20240086015A1
公开(公告)日：2024-03-14
申请号：US18236581
申请日：2023-08-22
Applicant: SAMSUNG DISPLAY CO. LTD
Inventor： KEUMDONG JUNG , JINWOO KIM
IPC: G06F3/041 , G09G3/3266
CPC classification number: G06F3/04184 , G09G3/3266 , G09G2310/0289 , G09G2310/0291 , G09G2354/00
Abstract: A display device including: a display panel; an input sensor disposed on the display panel and including a transmission electrode and a reception electrode; a readout circuit configured to output a low-voltage transmission signal and to receive a reception signal from the reception electrode; and an output circuit configured to convert the low-voltage transmission signal into a transmission signal and to provide the transmission signal to the transmission electrode.
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7.发明公开公开(公告)号：US20230291413A1
公开(公告)日：2023-09-14
申请号：US18118918
申请日：2023-03-08
Inventor： KYUNGTEA PARK , Kun-Woo Park , Jae-Hyun Chung , OHJO KWON , Seung-Tak Ryu , KEUMDONG JUNG
Abstract: An analog-to-digital converter includes: a sample/hold circuit, which samples an analog signal, and outputs a first voltage; a digital-to-analog conversion circuit, which converts a digital signal to output a second voltage; an amplifier, which amplifies the first voltage and the second voltage; a noise shaping filter, which integrates a residual voltage corresponding to a difference between the amplified first voltage and the amplified second voltage, and generates a first integration voltage and a second integration voltage; a comparator, which compares a sum of the amplified first voltage, the first integration voltage, and the second integration voltage with the amplified second voltage; and a SAR logic, which outputs the digital signal according to a comparison result of the comparator, and controls the digital-to-analog conversion circuit.
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公开(公告)号：US20220036826A1
公开(公告)日：2022-02-03
申请号：US17504979
申请日：2021-10-19
Applicant: Samsung Display Co., Ltd.
Inventor： Goeun CHA , KyungTea PARK , KEUMDONG JUNG , Suk KIM
IPC: G09G3/3233 , G06K9/00 , G09G3/20
Abstract: A display panel including: a plurality of light emitting pixels which emit light in response to a first scan signal, a second scan signal, and a light emission control signal; and a plurality of light sensing pixels which output a sensing signal corresponding to external light in response to the first scan signal and the second scan signal, wherein each of the plurality of light emitting pixels includes an organic light emitting diode including an anode and a cathode, the cathode receiving a first driving voltage, and each of the plurality of light sensing pixels includes an organic photodiode including a first electrode and a second electrode, wherein the second electrode of the organic photodiode is electrically connected to the cathode of the organic light emitting diode to receive the first driving voltage.
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公开(公告)号：US20240119877A1
公开(公告)日：2024-04-11
申请号：US18446195
申请日：2023-08-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： YONGSUB SO , KEUMDONG JUNG , SANGHUN PARK , DA EUN YI , BO-HWAN LEE , BYEONGKYU JEON
IPC: G09G3/02
CPC classification number: G09G3/025 , G09G2300/0804 , G09G2310/021 , G09G2310/0213 , G09G2310/08 , G09G2360/12 , G09G2370/22
Abstract: A display device includes a display panel, an input sensor disposed on the display panel and sensing an input during a sensing frame period, a display controller receiving a vertical synchronization signal and a horizontal synchronization signal and controlling driving of the display panel in response to the vertical synchronization signal and the horizontal synchronization signal, and a sensor controller providing a transmission signal including a plurality of sampling periods to the input sensor. The display controller provides frequency information of a display frame period to the sensor controller using at least one of the vertical synchronization signal and the horizontal synchronization signal, and the sensor controller controls the number of the sampling periods of the sensing frame period based on the frequency information.
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公开(公告)号：US20220383788A1
公开(公告)日：2022-12-01
申请号：US17723820
申请日：2022-04-19
Applicant: Samsung Display Co., Ltd.
Inventor： JIWOONG KIM , OHJO KWON , IKHYUN KIM , HYUNGGUN MA , KYUNGTEA PARK , SEONGJOO LEE , KEUMDONG JUNG , SANGHYUN HEO , DONGHYUN HWANG
IPC: G09G3/20
Abstract: A driving chip includes a data channel block including a plurality of data channels, a scan channel block disposed in a first direction from the data channel block and including a plurality of scan channels, a data pad block disposed outside the data channel block and the scan channel block in the first direction and including a plurality of data pads which respectively receive a data signal from the plurality of data channels, and a scan pad block disposed outside the data channel block and the scan channel block in the first direction, disposed outside the data pad block in a second direction crossing the first direction and including a plurality of scan pads which respectively receive a scan signal from the scan channels.
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