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公开(公告)号：US11227517B2
公开(公告)日：2022-01-18
申请号：US16799520
申请日：2020-02-24
Applicant: Samsung Display Co., Ltd.
Inventor： Yoon Young Lee , Sung Chun Park
Abstract: A vehicle display device includes a first display unit disposed in a first portion of a vehicle and including a first display panel to display a first image and a first power supply to supply a first power supply voltage to the first display panel, the first power supply configured to detect an abnormality of a signal output to the first display panel to generate a first shut-down control signal; a second display unit disposed in a second portion of the vehicle and including a second display panel to display a second image and a second power supply to supply a second power supply voltage to the second display panel, the second power supply configured to detect an abnormality of a signal output to the second display panel to generate a second shut-down control signal; a third display unit disposed in a third portion of the vehicle and configured to display a third image or at least one of the first and second images; and a controller to receive first image data corresponding to the first image, second image data corresponding to the second image, and third image data corresponding to the third image to provide the received first image data, the received second image data, and the received third image data to the first display unit, the second display unit, and the third display unit, respectively. The controller is configured to supply the first image data to the third display unit in response to the first shut-down control signal, and to supply the second image data to the third display unit in response to the second shut-down control signal.
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公开(公告)号：US10679540B2
公开(公告)日：2020-06-09
申请号：US16132905
申请日：2018-09-17
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sung Chun Park , Yoon Young Lee
Abstract: A direct current-to-direct current (“DC-DC”) converter includes: a first converter which outputs a first power voltage in a normal mode or a power saving mode based on a inductor current generated therein, where the first converter operates in a first driving manner in the normal mode, and operates in a second driving manner in the power saving mode; a second converter which outputs a second power voltage based on a inductor current generated therein, where the second converter operates in a third driving manner in the power saving mode, and a magnitude of the second power voltage in the power saving to mode is different from that in the normal mode; and a mode selector which supplies a mode control signal to the first and second converters, where the first and second converters are driven in the normal mode or the power saving mode based on the mode control signal.
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公开(公告)号：US20200175906A1
公开(公告)日：2020-06-04
申请号：US16667208
申请日：2019-10-29
Applicant: Samsung Display Co., Ltd.
Inventor： Yoon Young Lee , Sung Chun Park
IPC: G09G3/20
Abstract: A display device includes a display panel to display an image, a data driver to supply a data signal to the display panel, and a power supply to supply a driving voltage to the display panel through a power supply line and to supply a data driving voltage to the data driver, in which the power supply is configured to detect a voltage of the power supply line during an initial driving period during which the data driving voltage is supplied to the data driver, to supply a ground voltage to the display panel when the voltage detected from the power supply line is different from a reference voltage, and to supply the driving voltage to the power supply line after the initial driving period.
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公开(公告)号：US11881150B2
公开(公告)日：2024-01-23
申请号：US17872336
申请日：2022-07-25
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yang Uk Nam , Sung Chun Park
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2300/0819 , G09G2330/021
Abstract: A display device including: a power management integrated circuit (IC) including a feedback terminal for receiving a feedback voltage that corresponds to an input voltage and an output terminal for supplying a first voltage; a display driver IC electrically connected to the power management IC, the display driver IC including an input terminal for receiving the input voltage that corresponds to the first voltage; and a frequency compensation circuit connected to the input terminal, the feedback terminal, and the output terminal, the frequency compensation circuit including a feedback capacitor and a feedback resistor.
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Patent Agency Ranking
公开(公告)号：US11823604B2
公开(公告)日：2023-11-21
申请号：US18073999
申请日：2022-12-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sung Chun Park , Yoon Young Lee
CPC classification number: G09G3/20 , H02M1/32 , H02M3/158 , G09G2330/021 , G09G2330/028 , H02M1/0032
Abstract: A direct current-to-direct current (“DC-DC”) converter includes: a first converter which outputs a first power voltage in a normal mode or a power saving mode based on a inductor current generated therein, where the first converter operates in a first driving manner in the normal mode, and operates in a second driving manner in the power saving mode; a second converter which outputs a second power voltage based on a inductor current generated therein, where the second converter operates in a third driving manner in the power saving mode, and a magnitude of the second power voltage in the power saving to mode is different from that in the normal mode; and a mode selector which supplies a mode control signal to the first and second converters, where the first and second converters are driven in the normal mode or the power saving mode based on the mode control signal.
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公开(公告)号：US20230237952A1
公开(公告)日：2023-07-27
申请号：US17872336
申请日：2022-07-25
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yang Uk Nam , Sung Chun Park
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2330/021 , G09G2300/0819
Abstract: A display device including: a power management integrated circuit (IC) including a feedback terminal for receiving a feedback voltage that corresponds to an input voltage and an output terminal for supplying a first voltage; a display driver IC electrically connected to the power management IC, the display driver IC including an input terminal for receiving the input voltage that corresponds to the first voltage; and a frequency compensation circuit connected to the input terminal, the feedback terminal, and the output terminal, the frequency compensation circuit including a feedback capacitor and a feedback resistor.
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公开(公告)号：US11521533B2
公开(公告)日：2022-12-06
申请号：US17397053
申请日：2021-08-09
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Sung Chun Park , Yoon Young Lee
Abstract: A direct current-to-direct current (“DC-DC”) converter includes: a first converter which outputs a first power voltage in a normal mode or a power saving mode based on a inductor current generated therein, where the first converter operates in a first driving manner in the normal mode, and operates in a second driving manner in the power saving mode; a second converter which outputs a second power voltage based on a inductor current generated therein, where the second converter operates in a third driving manner in the power saving mode, and a magnitude of the second power voltage in the power saving mode is different from that in the normal mode; and a mode selector which supplies a mode control signal to the first and second converters, where the first and second converters are driven in the normal mode or the power saving mode based on the mode control signal.
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公开(公告)号：US11005375B2
公开(公告)日：2021-05-11
申请号：US16680945
申请日：2019-11-12
Applicant: Samsung Display Co., Ltd.
Inventor： Sung Chun Park
Abstract: A DC-DC converter including a first power supply including a first converter outputting a first power voltage, a first sensor detecting a panel current from an output of the first converter; and a first output group including a plurality of inverting converters outputting a second power voltage based on the panel current; a second power supply including a second converter outputting the first power voltage, and a second output group including a plurality of inverting converters outputting the second power voltage based on the panel current; and a first phase controller controlling operations of the inverting converters included in each of the first and second output groups based on the detected panel current. The second power supply operates when the panel current exceeds a predetermined enable value.
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公开(公告)号：US20200279514A1
公开(公告)日：2020-09-03
申请号：US16799520
申请日：2020-02-24
Applicant: Samsung Display Co., Ltd.
Inventor： Yoon Young LEE , Sung Chun Park
Abstract: A vehicle display device includes a first display unit disposed in a first portion of a vehicle and including a first display panel to display a first image and a first power supply to supply a first power supply voltage to the first display panel, the first power supply configured to detect an abnormality of a signal output to the first display panel to generate a first shut-down control signal; a second display unit disposed in a second portion of the vehicle and including a second display panel to display a second image and a second power supply to supply a second power supply voltage to the second display panel, the second power supply configured to detect an abnormality of a signal output to the second display panel to generate a second shut-down control signal; a third display unit disposed in a third portion of the vehicle and configured to display a third image or at least one of the first and second images; and a controller to receive first image data corresponding to the first image, second image data corresponding to the second image, and third image data corresponding to the third image to provide the received first image data, the received second image data, and the received third image data to the first display unit, the second display unit, and the third display unit, respectively. The controller is configured to supply the first image data to the third display unit in response to the first shut-down control signal, and to supply the second image data to the third display unit in response to the second shut-down control signal.
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