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公开(公告)号：US20220157253A1
公开(公告)日：2022-05-19
申请号：US17587325
申请日：2022-01-28
发明人： HongSoo KIM , Sangan KWON , Jinyoung ROH , Sehyuk PARK , Sukhun LEE , Hyojin LEE
IPC分类号： G09G3/3266 , G09G3/3275
摘要： A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line of the display panel. The data driver outputs a data voltage to a data line of the display panel. The driving controller controls operations of the gate driver and the data driver and drive a still image display area and a video image display area of a display area of the display panel in different driving frequencies. The driving controller includes a still image determiner which divides the input image data into a plurality of still image determining blocks, respectively determines whether the still image determining blocks represent a still image or a video image and determines a boundary between the still image display area and the video image display area.
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公开(公告)号：US20210366340A1
公开(公告)日：2021-11-25
申请号：US17397000
申请日：2021-08-09
发明人： Jinyoung ROH , HongSoo KIM , Sangan KWON , Sehyuk PARK , Hyo Jin LEE
IPC分类号： G09G3/20
摘要： A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel including a gate line and a data line displays an image based on input image data. The gate driver outputs a gate signal to the gate line. The data driver outputs a data voltage to the data line. The driving controller includes an area divider dividing the input image data into first and second area data, a first variable frequency driver determining a first driving frequency of the first area data based on a flicker value according to a grayscale value and generating a first data signal of the first driving frequency and a second variable frequency driver determining a second driving frequency of the second area data based on a flicker value according to a grayscale value and generating a second data signal of the second driving frequency.
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公开(公告)号：US20210020107A1
公开(公告)日：2021-01-21
申请号：US16914163
申请日：2020-06-26
发明人： Sehyuk PARK , Hyojin LEE , Sangan KWON , Jinyoung ROH
IPC分类号： G09G3/3258 , G09G3/3291
摘要： A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line of the display panel. The data driver outputs a data voltage to a data line of the display panel. The driving controller is configured to control an operation of the gate driver and an operation of the data driver, to determine a driving mode of the display apparatus among one of a normal driving mode and a low frequency driving mode, and to determine a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage configured to store flicker values for a part of grayscale values among all of grayscale values of the input image data.
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公开(公告)号：US20210027720A1
公开(公告)日：2021-01-28
申请号：US16922906
申请日：2020-07-07
发明人： Sehyuk PARK , Joon-Chul GOH , Sangan KWON , HongSoo KIM , Hui NAM , Jinyoung ROH , Hyojin LEE
IPC分类号： G09G3/3291 , G09G3/3266
摘要： A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver configured to drive the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. When the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.
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公开(公告)号：US20210020113A1
公开(公告)日：2021-01-21
申请号：US16920322
申请日：2020-07-02
发明人： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyo Jin LEE
IPC分类号： G09G3/3291
摘要： A method of driving a display panel includes dividing an input image into a plurality of segments, generating a flicker value of a segment of the plurality of segments, determining whether to compensate the flicker value of the segment or not according to a segment size, compensating the flicker value of the segment based on the segment size, determining a frame rate of the display panel based on the flicker value of the segment and outputting a data voltage to the display panel in the frame rate. The flicker value of the segment is compensated based on the flicker value of the segment and flicker values of segments that are adjacent to the segment.
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公开(公告)号：US20200349879A1
公开(公告)日：2020-11-05
申请号：US16844887
申请日：2020-04-09
发明人： Sehyuk PARK , Hyo Jin LEE , Sangan KWON , Jinyoung ROH
IPC分类号： G09G3/20 , G09G3/3275 , G09G3/3266
摘要： A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; and a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a driving mode of the display apparatus to one of a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data, wherein the driving controller is configured to determine the driving frequency of the display panel using a flicker value varied according to a grayscale value of the input image data and a luminance setting value.
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公开(公告)号：US20230013182A1
公开(公告)日：2023-01-19
申请号：US17935562
申请日：2022-09-26
发明人： Sehyuk PARK , Hyojin LEE , Hui NAM , Jinyoung ROH , Bong Hyun YOU , Eunho LEE
IPC分类号： G09G3/3275
摘要： A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.
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公开(公告)号：US20220148524A1
公开(公告)日：2022-05-12
申请号：US17586470
申请日：2022-01-27
发明人： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyo Jin LEE
IPC分类号： G09G3/3291
摘要： A method of driving a display panel includes dividing an input image into a plurality of segments, generating a flicker value of a segment of the plurality of segments, determining whether to compensate the flicker value of the segment or not according to a segment size, compensating the flicker value of the segment based on the segment size, determining a frame rate of the display panel based on the flicker value of the segment and outputting a data voltage to the display panel in the frame rate. The flicker value of the segment is compensated based on the flicker value of the segment and flicker values of segments that are adjacent to the segment.
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公开(公告)号：US20210043140A1
公开(公告)日：2021-02-11
申请号：US16921329
申请日：2020-07-06
发明人： Jinyoung ROH , Sangan KWON , Sehyuk PARK , Hyojin LEE
IPC分类号： G09G3/3233 , G09G3/3283 , G09G3/3266 , G09G3/20
摘要： A display device includes a display panel and a panel driver configured to drive the display panel. The panel driver receives input image data corresponding to first, second, and third colors at an input frame frequency, and detects whether the input image data represent a still or dynamic image. If the input image data represent the dynamic image, the panel driver drives the display panel at a first output frame frequency substantially the same as the input frame frequency. If the input image data represent the still image, the panel driver calculates a plurality of flicker indexes of the still image for at least two of the first, second, third colors, one or more combinations of the first, second, and third colors, and drives the display panel at a second output frame frequency that is determined based on the plurality of flicker indexes.
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公开(公告)号：US20210027707A1
公开(公告)日：2021-01-28
申请号：US16888284
申请日：2020-05-29
发明人： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyojin LEE
IPC分类号： G09G3/3233 , G09G3/3266
摘要： A display device including: a controller including: a zone splitting block configured to divide input image data into a plurality of partial image data respectively corresponding to a plurality of partial panel zones of the display panel; a plurality of panel zone frequency deciding blocks configured to determine a plurality of driving frequencies for the plurality of partial panel zones by analyzing the plurality of partial image data, respectively; a non-driving period setting block configured to classify a plurality of frame periods into a driving frame period and a non-driving frame period based on a maximum driving frequency of the plurality of driving frequencies; and a scan driver control block configured to provide the scan driver input signal to the scan driver in the driving frame period, and to not provide the scan driver input signal to the scan driver in the non-driving frame period.
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