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公开(公告)号:US11727871B2
公开(公告)日:2023-08-15
申请号:US17361840
申请日:2021-06-29
Applicant: Samsung Display Co., Ltd.
Inventor: Kihyun Pyun , Minyoung Park , Eunjin Choi
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2310/027 , G09G2320/0233 , G09G2320/0666
Abstract: A display device includes a display panel which displays an image, a current compensator and a panel driver. The current compensator calculates a load based on input image data and compensates the input image data to output compensation image data having a target current corresponding to the load. The panel driver drives the display panel based on the compensation image data. The current compensator calculates the load for the input image data based on a combination of load weights calculated by different variables.
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公开(公告)号:US11942060B2
公开(公告)日:2024-03-26
申请号:US17201837
申请日:2021-03-15
Applicant: Samsung Display Co., Ltd.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G5/10 , G09G3/3291
CPC classification number: G09G5/10 , G09G3/3291 , G09G2310/0243 , G09G2320/0257 , G09G2330/028
Abstract: A display apparatus includes: a display panel including: a gate line; a data line; and a pixel electrically connected to the gate line and the data line, and to display a normal image and a compensation image; a gate driver to output a gate signal to the gate line; a data driver to output a data voltage to the data line; and a power voltage generator to vary a level of a gate power voltage based on a compensation duty ratio corresponding to a ratio between a display duration of the normal image and a display duration of the compensation image.
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公开(公告)号:US11640783B2
公开(公告)日:2023-05-02
申请号:US17501998
申请日:2021-10-14
Applicant: Samsung Display Co., Ltd.
Inventor: Kihyun Pyun , Wonjin Seo , Eunjin Choi
IPC: G09G3/20
Abstract: A driving controller set includes a net power control setter, a data clamper, a data line, and a data driver. The net power control setter may determine a first scale factor for adjusting a grayscale value of (N+1)-th frame data based on a load of N-th frame data and a net power control reference value. N is an integer equal to or greater than two. The data clamper may determine a second scale factor for adjusting a grayscale value of the N-th frame data based on a load of (N−1)-th frame data and the N-th frame data. A data signal may be generated using the first scale factor and/or the second scale factor. The data line may include a conductive material. The data driver may convert the data signal into a data voltage and may output the data voltage to the data line.
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公开(公告)号:US11557268B2
公开(公告)日:2023-01-17
申请号:US17457300
申请日:2021-12-02
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Kihyun Pyun , Eunjin Choi
IPC: G09G5/10
Abstract: A screen saver controller includes a temperature calculator, a temperature comparator, an operator, and a screen saver data generator. The temperature calculator calculates temperature data of a display panel based on input image data. The temperature comparator receives the temperature data and a target temperature and compares a temperature of the display panel with the target temperature to generate temperature change data. The operator receives the temperature data and the temperature change data and generates operation data based on the temperature data and the temperature change data. The screen saver data generator receives the operation data and generates screen saver data based on the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a first mode.
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5.
公开(公告)号:US12217677B2
公开(公告)日:2025-02-04
申请号:US18230668
申请日:2023-08-07
Applicant: Samsung Display Co., Ltd.
Inventor: Eunjin Choi , Geonhwi Park , Jang-Mi Lee , Kihyun Pyun
IPC: G09G3/3233 , G09G3/32
Abstract: A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.
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公开(公告)号:US11605338B2
公开(公告)日:2023-03-14
申请号:US17233260
申请日:2021-04-16
Applicant: Samsung Display Co., Ltd.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G3/3208
Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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公开(公告)号:US11990106B2
公开(公告)日:2024-05-21
申请号:US18066351
申请日:2022-12-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Kihyun Pyun , Eunjin Choi
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G2310/0267 , G09G2310/027 , G09G2310/08 , G09G2320/0257 , G09G2320/041
Abstract: A screen saver controller includes a temperature calculator, a temperature comparator, an operator, and a screen saver data generator. The temperature calculator calculates temperature data of a display panel based on input image data. The temperature comparator receives the temperature data and a target temperature and compares a temperature of the display panel with the target temperature to generate temperature change data. The operator receives the temperature data and the temperature change data and generates operation data based on the temperature data and the temperature change data. The screen saver data generator receives the operation data and generates screen saver data based on the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a first mode.
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公开(公告)号:US11908401B2
公开(公告)日:2024-02-20
申请号:US18183124
申请日:2023-03-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/0233 , G09G2320/04 , G09G2320/043 , G09G2320/046 , G09G2320/048 , G09G2320/062 , G09G2320/0686
Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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9.
公开(公告)号:US20230222970A1
公开(公告)日:2023-07-13
申请号:US18183124
申请日:2023-03-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Eunjin Choi , Wonjin Seo , Kihyun Pyun
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/043 , G09G2320/062 , G09G2320/048 , G09G2320/046 , G09G2320/0233 , G09G2320/0686 , G09G2320/04
Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
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10.
公开(公告)号:US11501702B2
公开(公告)日:2022-11-15
申请号:US17335501
申请日:2021-06-01
Applicant: Samsung Display Co., Ltd.
Inventor: Wonjin Seo , Eunjin Choi , Kihyun Pyun
IPC: G09G3/3208 , H01L27/32
Abstract: An electronic device includes a display panel which includes a plurality of light emitting elements and in which a plurality of areas is defined based on the plurality of light emitting elements, a compensation unit which calculates compensation values for image data provided to each of the plurality of areas, and a control unit which controls the output of the image data provided to the display panel based on the compensation values and the image data, where the control unit may include a correction unit which outputs a correction ratio of each of the plurality of areas based on the compensation values and a comparison unit which determines whether an input current of the image data is in a normal range based on the correction ratio.
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