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公开(公告)号：US20240265852A1
公开(公告)日：2024-08-08
申请号：US18527090
申请日：2023-12-01
Applicant: Samsung Display Co., Ltd.
Inventor： SEONGHEON CHO , KUK-HWAN AHN , SEUNGJAE LEE , DAE-GWANG JANG
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2320/0233 , G09G2320/0285 , G09G2320/041
Abstract: A display device includes: a display panel displaying an image; and a drive controller receiving an image signal, and driving the plurality of pixels, and including a heat emitting controller, wherein the heat emitting controller includes: an average region setter receiving the image signal, setting, to one pixel region, some pixels of the plurality of pixels, and extracting an average gray level, based on gray levels of the some pixels of the plurality of pixels to set an average region from the pixel region; a diffusion region setter substituting a diffusion region, which is set to have a temperature corresponding to the average gray level, into the average region; and a look-up table map generator generating a look-up table map by predicting, based on the diffusion region, heat emitted from an inner part of a display region of the display panel and varied depending on the image.
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公开(公告)号：US20230154365A1
公开(公告)日：2023-05-18
申请号：US17940353
申请日：2022-09-08
Applicant: Samsung Display Co., Ltd.
Inventor： SEONGHEON CHO
CPC classification number: G09G3/003 , G09G3/002 , G06F3/013 , G09G2330/10 , G09G2354/00 , G09G2320/045 , G09G2320/0686
Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The driving controller operates a stain compensation for a first compensation area of the display panel in a first frame and for a second compensation area of the display panel in a second frame to generate a data signal. The data driver converts the data signal into a data voltage and outputs the data voltage to the display panel.
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公开(公告)号：US20250046226A1
公开(公告)日：2025-02-06
申请号：US18629325
申请日：2024-04-08
Applicant: Samsung Display Co., LTD.
Inventor： SEONGHEON CHO , KUK-HWAN AHN , SEUNGJAE LEE , DAE-GWANG JANG
IPC: G09G3/20
Abstract: A display apparatus includes a driving controller, a data driver and a display panel. The driving controller is configured to determine an average load of a unit area based on an average grayscale value of the unit area and a pixel area ratio of the unit area, to determine a temperature diffusion load of the unit area based on average loads, temperature diffusion ratios and weight ratios of adjacent unit areas adjacent to the unit area and to compensate input image data based on the average load of the unit area and the temperature diffusion load of the unit area to generate a compensated data signal. The data driver is configured to convert the compensated data signal into a data voltage. The display panel is configured to display an image based on the data voltage.
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公开(公告)号：US20230298532A1
公开(公告)日：2023-09-21
申请号：US18324290
申请日：2023-05-26
Applicant: Samsung Display Co., LTD.
Inventor： HAE-KWAN SEO , SEONGHEON CHO , SOON-DONG KIM , TAEHOON KIM
IPC: G09G3/3266 , G09G3/3233 , G09G3/3275
CPC classification number: G09G3/3266 , G09G3/3233 , G09G3/3275 , G09G2310/0202 , G09G2310/08 , G09G2320/0238 , G09G2330/021
Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.
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公开(公告)号：US20240377967A1
公开(公告)日：2024-11-14
申请号：US18776839
申请日：2024-07-18
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： KUK-HWAN AHN , SEUNGJAE LEE , DAE-GWANG JANG , SEONGHEON CHO
Abstract: A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.
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Patent Agency Ranking
公开(公告)号：US20240169895A1
公开(公告)日：2024-05-23
申请号：US18348627
申请日：2023-07-07
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： KUK-HWAN AHN , SEUNGJAE LEE , DAE-GWANG JANG , SEONGHEON CHO
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2320/041 , G09G2330/045
Abstract: A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.
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公开(公告)号：US20230040896A1
公开(公告)日：2023-02-09
申请号：US17938693
申请日：2022-10-07
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： SEONGHEON CHO , Joon-Chul Goh , Soon-Dong Kim , Bonghyun You
IPC: G09G3/3233 , G09G3/3283 , G09G3/3266
Abstract: A light emission driving circuit includes a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to clock signals and a first carry signal, and a first masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the first switching signal. The masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode.
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公开(公告)号：US20220351687A1
公开(公告)日：2022-11-03
申请号：US17864902
申请日：2022-07-14
Applicant: Samsung Display Co., LTD.
Inventor： HAE-KWAN SEO , SEONGHEON CHO , SOON-DONG KIM , TAEHOON KIM
IPC: G09G3/3266 , G09G3/3233 , G09G3/3275
Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.
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公开(公告)号：US20220020327A1
公开(公告)日：2022-01-20
申请号：US17243829
申请日：2021-04-29
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： SEONGHEON CHO , JOON-CHUL GOH , SOON-DONG KIM , BONGHYUN YOU
IPC: G09G3/3233 , G09G3/3283 , G09G3/3266
Abstract: A light emission driving circuit includes a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to clock signals and a first carry signal, and a first masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the first switching signal. The masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode.
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公开(公告)号：US20210407429A1
公开(公告)日：2021-12-30
申请号：US17185358
申请日：2021-02-25
Applicant: Samsung Display Co., LTD.
Inventor： HAE-KWAN SEO , SEONGHEON CHO , SOON-DONG KIM , TAEHOON KIM
IPC: G09G3/3266 , G09G3/3233 , G09G3/3275
Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.
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