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公开(公告)号：US20220139309A1
公开(公告)日：2022-05-05
申请号：US17348151
申请日：2021-06-15
发明人： Jiheon OK , Hyeonsu PARK , Jooyoung AN , Yonghoon YU , Hyunwook LIM , Woohyuk JANG
IPC分类号： G09G3/3208
摘要： To compensate for degeneration of an electroluminescent display device, a method of compensating for the degeneration may include, grouping a plurality of pixels in a display panel into a plurality of pixel blocks arranged in present block rows and present block columns based on initial block boundaries, accumulating block stress values based on input image data, each accumulated block stress value representing a degeneration degree of the pixels included in each pixel block of the plurality of pixel blocks, performing a boundary updating operation on the plurality of pixel blocks, the performing the boundary updating operation including moving present block boundaries of the plurality of pixel blocks to updated block boundaries based on a distribution of the accumulated block stress values, and correcting the input image data based on the accumulated block stress values and the updated block boundaries.
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公开(公告)号：US20210012717A1
公开(公告)日：2021-01-14
申请号：US16829244
申请日：2020-03-25
发明人： Unki PARK , Minsik KIM , Hyeonsu PARK , Hyunwook LIM , Woohyuk JANG
IPC分类号： G09G3/3258
摘要： A display driving circuit for driving a display panel includes a control logic that adjusts brightness of a first partial area by adjusting pixel data values included in partial image data to be displayed on the first partial area of the display panel based on received brightness control information, and a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to the display panel.
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3.发明公开公开(公告)号：US20240185764A1
公开(公告)日：2024-06-06
申请号：US18523354
申请日：2023-11-29
发明人： Taekon YU , Jonghee NA , Sewhan NA , Hyeonsu PARK , Hyunwook LIM
IPC分类号： G09G3/20 , G09G3/3225
CPC分类号： G09G3/2096 , G09G3/3225 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0209 , G09G2320/045 , G09G2340/00
摘要： A display driving circuit includes: a compensation control circuit configured to: generate a compensation voltage based on input image data and information of a display panel operatively connected to the display driving circuit, and compensate a data voltage of the input image data based on the compensation voltage; and a timing control circuit configured to output the compensated data voltage to a plurality of pixels in the display panel.
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公开(公告)号：US20240062698A1
公开(公告)日：2024-02-22
申请号：US18385002
申请日：2023-10-30
发明人： Byoungyoon JANG , Yong Hoon YU , Se Whan NA , Jong-Hee NA , Hyeonsu PARK
IPC分类号： G09G3/20
CPC分类号： G09G3/2044 , G09G2360/145 , G09G2320/0626 , G09G2320/0233
摘要： A display driver integrated circuit (IC) includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.
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公开(公告)号：US20230260445A1
公开(公告)日：2023-08-17
申请号：US17960435
申请日：2022-10-05
发明人： Byoungyoon JANG , Yong Hoon YU , Se Whan NA , Jong-Hee NA , Hyeonsu PARK
IPC分类号： G09G3/20
CPC分类号： G09G3/2044 , G09G2320/0233 , G09G2320/0626 , G09G2360/145
摘要： Disclosed is a display driver integrated circuit (IC) which includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.
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公开(公告)号：US20220028341A1
公开(公告)日：2022-01-27
申请号：US17492985
申请日：2021-10-04
发明人： Unki PARK , Minsik KIM , Hyeonsu PARK , Hyunwook LIM , Woohyuk JANG
IPC分类号： G09G3/3258
摘要： A display driving circuit for driving a display panel includes a control logic that adjusts brightness of a first partial area by adjusting pixel data values included in partial image data to be displayed on the first partial area of the display panel based on received brightness control information, and a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to the display panel.
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