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公开(公告)号：US12154511B2
公开(公告)日：2024-11-26
申请号：US18050286
申请日：2022-10-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Jang Hoon Kwak , Won Jin Seo
IPC: G09G3/3266
Abstract: A display device includes a display panel including scan lines, first signal lines connected to the scan lines in a first pixel block, second signal lines connected to the scan lines in a second pixel block, third signal lines connected to the scan lines in a third pixel block; a first scan driver supplying a first output signal to the first signal lines based on a first sub-clock signal; a second scan driver supplying a second output signal to the second signal lines based on a second sub-clock signal; a third scan driver supplying a third output signal to the third signal lines based on and a third sub-clock signal; and a timing controller. Changes in pulse widths of the first to third output signals are different in one frame period.
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公开(公告)号：US12057048B2
公开(公告)日：2024-08-06
申请号：US18307536
申请日：2023-04-26
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Hee Sook Park
IPC: G09G3/20 , G09G3/3233
CPC classification number: G09G3/2007 , G09G3/2096 , G09G3/3233 , G09G2300/0842 , G09G2320/0233 , G09G2320/0247 , G09G2320/041 , G09G2330/028
Abstract: A display device includes a display panel including a plurality of pixels, a timing controller, a data driver and a scale factor. The timing controller calculates a frame load value corresponding to an image frame of input image data and generates image data by scaling grayscale values of the input image data using a scale factor. The data driver generates a data signal corresponding to the image data and supplies the data signal to the pixels. The scale factor generating circuit sets a reference range based on a temperature of the display panel and a global current value that flows through the pixels, and generates the scale factor included within the reference range based on the frame load value and the global current value.
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公开(公告)号：US11996040B2
公开(公告)日：2024-05-28
申请号：US18313116
申请日：2023-05-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Jang Hoon Kwak
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/027 , G09G2320/0242 , G09G2320/041 , G09G2320/043 , G09G2320/045 , G09G2320/048 , G09G2330/12
Abstract: A display device may include first pixels configured to emit light in a first color, second pixels configured to emit light in a second color different from the first color, a data driver configured to supply first reference voltages to data lines coupled to the first pixels, and a sensing circuit configured to receive first sensing voltages from sensing lines coupled to the first pixels, wherein the data driver supplies second reference voltages different from the first reference voltages to data lines coupled to the second pixels, and the sensing circuit receives second sensing voltages from sensing lines coupled to the second pixels.
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公开(公告)号：US11908433B2
公开(公告)日：2024-02-20
申请号：US18134431
申请日：2023-04-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Jang Mi Lee , Eun Jin Choi
CPC classification number: G09G5/10 , G09G3/20 , G09G2320/0271 , G09G2320/0646
Abstract: A display device includes: a pixel part partitioned into blocks; a scale factor provider which calculates a first load value of input image data for the pixel part, calculates a second load value of the input image data for each block, and generates a scale factor based on the first and second load values; and a timing controller which generates image data by scaling gray values of the input image data based on the scale factor. The scale factor provider generates a first scale factor for commonly controlling the gray values for the blocks based on the first load value, when the first load value is greater than or equal to a reference load value, and generates a second scale factor for controlling gray value for each block based on the first and second load values, when the first load value is less than the reference load value.
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公开(公告)号：US11790849B2
公开(公告)日：2023-10-17
申请号：US17646547
申请日：2021-12-30
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Hee Sook Park
IPC: G09G3/3258 , G09G3/00
CPC classification number: G09G3/3258 , G09G3/006 , G09G2310/027 , G09G2310/08 , G09G2330/12
Abstract: A display device includes: a display panel including pixels; a timing controller configured to generate image data based on input image data; a data driver configured to generate a data signal corresponding to the image data and supplying the data signal to the pixels; a power supply configured to supply a first power supply voltage to the display panel; and a power controller configured to calculate a load value and a peak grayscale of the entire display panel based on the input image data, receive feedback voltages of the first power supply voltage from relatively lower quality areas in which IR drop of the first power supply voltage occurs relatively more frequently, and generate a power control signal for changing the level of the first power supply voltage based on the load value, the peak grayscale, and the feedback voltages.
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Patent Agency Ranking
公开(公告)号：US11636798B2
公开(公告)日：2023-04-25
申请号：US17717471
申请日：2022-04-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Min Young Park , Eun Jin Choi
IPC: G09G3/20
Abstract: A display device includes: a pixel unit including pixels connected to data lines and scan lines, and signal output lines, where at least one signal output line of the signal output lines is connected to each of the scan lines through a contact point; a data driver disposed at one side of the pixel unit to drive the data lines; a scan driver disposed at the one side of the pixel unit together with the data driver to drive the scan lines; and a timing controller controlling the data driver and the scan driver. The data driver includes: output buffers outputting data signals to the data lines, respectively; and a slew rate controller adjusting a slew rate of the data signals by controlling a bias value supplied to the output buffers in units of pixel rows based on positions of the pixels and a change in the data signals.
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公开(公告)号：US11610552B2
公开(公告)日：2023-03-21
申请号：US17343808
申请日：2021-06-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Young Soo Sohn , Ki Hyun Pyun , Jae Hyoung Park , Kwan Young Oh , Seung Young Choi
IPC: G09G3/3275 , G09G3/3266
Abstract: A display device of the present invention includes a pixel unit including a plurality of pixels connected to data lines and scan lines; a data driver disposed on one side of the pixel unit to drive the data lines; a scan driver disposed on the one side of the pixel unit together with the data driver to drive the scan lines; and a controller which controls an output timing of a data signal in units of pixel columns and units of pixel rows based on a load of a scan signal supplied to the scan lines and a load of the data signal supplied to the data lines.
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公开(公告)号：US11539501B2
公开(公告)日：2022-12-27
申请号：US16914094
申请日：2020-06-26
Applicant: Samsung Display Co., Ltd.
Inventor： Ki Hyun Pyun , Min Young Park , Jong Min Shim
Abstract: A clock data recovery circuit includes the following elements: a phase detector for outputting a phase adjustment signal by comparing a clock signal of a first node and an input signal; a charge pump for adjusting a charge amount of a second node according to the phase adjustment signal; a first switch including one end coupled to the second node and including another end coupled to a third node; a second switch including one end which receives a bias voltage and including another end coupled to the third node; a capacitor including a first electrode coupled to the third node; third switches; and voltage control oscillators including control terminals coupled to the third node and including output terminals coupled to the first node through the third switches.
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公开(公告)号：US20220230578A1
公开(公告)日：2022-07-21
申请号：US17717471
申请日：2022-04-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Min Young Park , Eun Jin Choi
IPC: G09G3/20
Abstract: A display device includes: a pixel unit including pixels connected to data lines and scan lines, and signal output lines, where at least one signal output line of the signal output lines is connected to each of the scan lines through a contact point; a data driver disposed at one side of the pixel unit to drive the data lines; a scan driver disposed at the one side of the pixel unit together with the data driver to drive the scan lines; and a timing controller controlling the data driver and the scan driver. The data driver includes: output buffers outputting data signals to the data lines, respectively; and a slew rate controller adjusting a slew rate of the data signals by controlling a bias value supplied to the output buffers in units of pixel rows based on positions of the pixels and a change in the data signals.
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公开(公告)号：US20220122563A1
公开(公告)日：2022-04-21
申请号：US17345432
申请日：2021-06-11
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Ki Hyun Pyun , Jang Mi Lee , Eun Jin Chol
Abstract: A display device includes: a pixel part partitioned into blocks; a scale factor provider which calculates a first load value of input image data for the pixel part, calculates a second load value of the input image data for each block, and generates a scale factor based on the first and second load values; and a timing controller which generates image data by scaling gray values of the input image data based on the scale factor. The scale factor provider generates a first scale factor for commonly controlling the gray values for the blocks based on the first load value, when the first load value is greater than or equal to a reference load value, and generates a second scale factor for controlling gray value for each block based on the first and second load values, when the first load value is less than the reference load value.
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