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1.发明授权公开(公告)号：US12040814B2
公开(公告)日：2024-07-16
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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2.发明申请公开(公告)号：US20200320269A1
公开(公告)日：2020-10-08
申请号：US16838689
申请日：2020-04-02
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Keumdong Jung , KyungTea Park , Sunhwa Lee , Mukyung Jeon , Sanghyun Heo
Abstract: A display device relating to a method of operating thereof includes: a display panel having a touch sensing unit to sense an external touch and a display unit including a plurality of pixels; a fingerprint sensing panel to sense a fingerprint disposed on one surface of the display unit, the fingerprint sensing panel having a plurality of fingerprint sensing pixels respectively connected to a plurality of fingerprint scan lines and a plurality of fingerprint sensing lines, and a fingerprint scan driving circuit to drive one or more fingerprint scan lines included in a sensing area; and a read-out circuit to output a selection signal for selecting a sensing area of the fingerprint sensing panel.
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公开(公告)号：US10769988B2
公开(公告)日：2020-09-08
申请号：US15971811
申请日：2018-05-04
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Keumdong Jung
Abstract: A display device includes a screen having a plurality of pixels displaying an image. A projector includes a light source emitting a first light and a light converter configured to change an intensity of the first light with respect to each of the plurality of pixels so that the projector emits a conversion light. Each of the plurality of pixels of the screen includes a light receiving element configured to receive the conversion light and to generate a current proportional to an intensity of the conversion light. A light emitting element is configured to display the image based on the generated current.
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公开(公告)号：US20240118776A1
公开(公告)日：2024-04-11
申请号：US18349099
申请日：2023-07-07
Applicant: Samsung Display Co., Ltd.
Inventor： DA EUN YI , Sanghun Park , Yongsub So , Bo-Hwan Lee , Byeongkyu Jeon , Keumdong Jung
CPC classification number: G06F3/0446 , G06F3/0416
Abstract: An electronic device includes a sensor in which a sensing area and a peripheral area proximate to the sensing area are defined, and a sensor driver driving the sensor. The sensor includes first electrodes disposed in the sensing area and arranged along a first direction, and second electrodes arranged along a second direction intersecting the first direction. A boundary extending along the second direction is defined in the sensing area. The sensor driver simultaneously outputs a plurality of boundary transmit signals to a plurality of boundary electrodes disposed in a boundary area including the boundary among the plurality of first electrodes.
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公开(公告)号：US20230351964A1
公开(公告)日：2023-11-02
申请号：US18218220
申请日：2023-07-05
Applicant: Samsung Display Co., Ltd.
Inventor： Goeun CHA , KyungTea Park , Keumdong Jung , Suk Kim
IPC: G09G3/3233 , G09G3/20 , G06V40/13 , G06V10/143
CPC classification number: G09G3/3233 , G09G3/2003 , G06V40/1318 , G06V10/143 , G09G2354/00 , G09G2300/0452 , G06F3/0446
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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Patent Agency Ranking
公开(公告)号：US20220311397A1
公开(公告)日：2022-09-29
申请号：US17567512
申请日：2022-01-03
Inventor： Seok-Tae Koh , Seongjoo Lee , Hyun-Sik Kim , Gyeong-Gu Kang , Seunghwa Shin , Ohjo Kwon , Keumdong Jung
Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.
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公开(公告)号：US11423684B2
公开(公告)日：2022-08-23
申请号：US16838689
申请日：2020-04-02
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Keumdong Jung , KyungTea Park , Sunhwa Lee , Mukyung Jeon , Sanghyun Heo
IPC: G06V40/13 , G06F3/041 , G06V10/141 , G06V40/12
Abstract: A display device relating to a method of operating thereof includes: a display panel having a touch sensing unit to sense an external touch and a display unit including a plurality of pixels; a fingerprint sensing panel to sense a fingerprint disposed on one surface of the display unit, the fingerprint sensing panel having a plurality of fingerprint sensing pixels respectively connected to a plurality of fingerprint scan lines and a plurality of fingerprint sensing lines, and a fingerprint scan driving circuit to drive one or more fingerprint scan lines included in a sensing area; and a read-out circuit to output a selection signal for selecting a sensing area of the fingerprint sensing panel.
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公开(公告)号：US11736079B2
公开(公告)日：2023-08-22
申请号：US17567512
申请日：2022-01-03
Inventor： Seok-Tae Koh , Seongjoo Lee , Hyun-Sik Kim , Gyeong-Gu Kang , Seunghwa Shin , Ohjo Kwon , Keumdong Jung
CPC classification number: H03F3/45273 , G09G3/20 , H03F1/0211 , H03F3/45269 , G09G2310/0267 , G09G2310/0275 , G09G2310/0291 , G09G2330/02 , H03F2203/45476
Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.
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公开(公告)号：US11727874B2
公开(公告)日：2023-08-15
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 , G09G3/20 , G06V40/13 , G06V10/143 , G06F3/044
CPC classification number: G09G3/3233 , G06V10/143 , G06V40/1318 , G09G3/2003 , G06F3/0446 , G09G2300/0452 , G09G2300/0809 , G09G2354/00
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：US20220392248A1
公开(公告)日：2022-12-08
申请号：US17892107
申请日：2022-08-21
Applicant: Samsung Display Co., Ltd.
Inventor： Chul Kim , Keumdong Jung , KyungTea Park , Sunhwa Lee , Mukyung Jeon , Sanghyun Heo
IPC: G06V40/13 , G06F3/041 , G06V10/141 , G06V40/12
Abstract: A display device relating to a method of operating thereof, including: a display panel having a touch sensing unit to sense an external touch and a display unit including a plurality of pixels; a fingerprint sensing panel to sense a fingerprint disposed on one surface of the display unit, the fingerprint sensing panel having a plurality of fingerprint sensing pixels respectively connected to a plurality of fingerprint scan lines and a plurality of fingerprint sensing lines, and a fingerprint scan driving circuit to drive one or more fingerprint scan lines included in a sensing area; and a read-out circuit to output a selection signal for selecting a sensing area of the fingerprint sensing panel.
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