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公开(公告)号：US20240312381A1
公开(公告)日：2024-09-19
申请号：US18674165
申请日：2024-05-24
Applicant: Samsung Display Co., LTD.
Inventor： Jinyoung ROH , HongSoo KIM , Sangan KWON , Sehyuk PARK , Hyo Jin LEE
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2310/0202 , G09G2310/0267 , G09G2310/027 , G09G2320/0247 , G09G2320/10 , G09G2330/023
Abstract: 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：US20210027720A1
公开(公告)日：2021-01-28
申请号：US16922906
申请日：2020-07-07
Applicant: Samsung Display Co., Ltd.
Inventor： Sehyuk PARK , Joon-Chul GOH , Sangan KWON , HongSoo KIM , Hui NAM , Jinyoung ROH , Hyojin LEE
IPC: G09G3/3291 , G09G3/3266
Abstract: 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
Applicant: Samsung Display Co., Ltd.
Inventor： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyo Jin LEE
IPC: G09G3/3291
Abstract: 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：US20220148524A1
公开(公告)日：2022-05-12
申请号：US17586470
申请日：2022-01-27
Applicant: Samsung Display Co., Ltd.
Inventor： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyo Jin LEE
IPC: G09G3/3291
Abstract: 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：US20210027707A1
公开(公告)日：2021-01-28
申请号：US16888284
申请日：2020-05-29
Applicant: Samsung Display Co., Ltd.
Inventor： Sehyuk PARK , Sangan KWON , HongSoo KIM , Jinyoung ROH , Hyojin LEE
IPC: G09G3/3233 , G09G3/3266
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20210005130A1
公开(公告)日：2021-01-07
申请号：US16828726
申请日：2020-03-24
Applicant: Samsung Display Co., Ltd.
Inventor： Jinyoung ROH , Sangan KWON , Sehyuk PARK , Hyo Jin LEE , HongSoo KIM , Sukhun LEE
Abstract: A display driver includes a still image detector configured to receive a compressed image bitstream at an input frame frequency from a host processor, and to detect a still image by comparing the compressed image bitstream of a current frame and the compressed image bitstream of a previous frame, a driving frequency changer configured to output the compressed image bitstream at a first output frame frequency equal to the input frame frequency when the still image is not detected, and to output the compressed image bitstream at a second output frame frequency lower than the input frame frequency when the still image is detected, and a decoder configured to generate original image data at the first output frame frequency and the second output frame frequency.
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公开(公告)号：US20210043143A1
公开(公告)日：2021-02-11
申请号：US16931509
申请日：2020-07-17
Applicant: Samsung Display Co., Ltd.
Inventor： HongSoo KIM , Sehyuk PARK , Sangan KWON , Jinyoung ROH , Sukhun LEE , Hyojin LEE , Junheyung JUNG
IPC: G09G3/3258 , G09G3/3291
Abstract: 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 the display panel. The data driver outputs a data voltage to the display panel. The driving controller selectively determines a driving mode of the display apparatus between one of a normal driving mode and a low frequency driving mode, and determines a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage storing flicker values for grayscale values of the input image data and a data remapper converting the grayscale value of the input image data to decrease a size of a maximum frequency grayscale area corresponding to a maximum driving frequency in the low frequency driving mode.
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公开(公告)号：US20210027715A1
公开(公告)日：2021-01-28
申请号：US16923477
申请日：2020-07-08
Applicant: Samsung Display Co., Ltd.
Inventor： HongSoo KIM , Sangan KWON , Jinyoung ROH , Sehyuk PARK , Sukhun LEE , Hyojin LEE
IPC: G09G3/3266 , G09G3/3275
Abstract: 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：US20210027686A1
公开(公告)日：2021-01-28
申请号：US16923355
申请日：2020-07-08
Applicant: Samsung Display Co., Ltd.
Inventor： Jinyoung ROH , HongSoo KIM , Sangan KWON , Sehyuk PARK , Hyo Jin LEE
IPC: G09G3/20
Abstract: 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：US20240386833A1
公开(公告)日：2024-11-21
申请号：US17478759
申请日：2021-09-17
Applicant: Samsung Display Co., Ltd.
Inventor： Kuk-Hwan AHN , HongSoo KIM , JUNHEYUNG JUNG , YOUNGWOOK YOO , Jungyu LEE , Hyunjun LIM , BYUNG KI CHUN
Abstract: A driving controller of a display device includes a driving frequency controller for receiving an image signal, determining a driving frequency based on the image signal, and outputting a masking enable signal corresponding to the driving frequency, and an image processor for converting the image signal into a data signal and outputting the data signal, wherein the image processor sequentially converts, based on the masking enable signal being at an active level, a part of bits of the image signal into the data signal corresponding to a plurality of dither patterns.
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