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公开(公告)号：US11295674B2
公开(公告)日：2022-04-05
申请号：US17199468
申请日：2021-03-12
发明人： Jun-Yu Yang , Wei-Jhe Ma , Yung-Cheng Tsai , Feng-Ting Pai
IPC分类号： G09G3/32 , G09G3/3258
摘要： The present invention provides an image compensation circuit generating output image data to drive a display panel having pixels. The image compensation circuit includes first/second control circuits and first/second compensation circuits. The first control circuit may receive input image data for the pixels and generate a plurality of first compensation values corresponding to compensation for voltage drop on the display panel according to the input image data. The first compensation circuit may compensate the input image data for the pixels with the first compensation values. The second control circuit may receive the first compensation values from the first control circuit and generate a plurality of second compensation values corresponding to compensation for channel length modulation (CLM) effect of the pixels according to the first compensation values. The second compensation circuit may compensate the input image data for the pixels with the second compensation values, to generate the output image data.
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公开(公告)号：US10818210B2
公开(公告)日：2020-10-27
申请号：US16262934
申请日：2019-01-31
发明人： Wei-Jhe Ma , Yung-Cheng Tsai , Feng-Ting Pai
IPC分类号： G09G3/20
摘要： A display apparatus and a brightness uniformity compensation method are introduced. The display apparatus includes a display panel, a content analysis circuit, a compensation table generator and a pixel compensation circuit. The content analysis circuit receives display data for a pixel of the display panel and analyzes a display load of the display data to generate a data compensation value. The compensation table generator generates a compensation table that includes the data compensation value corresponding to the display data of each pixel of the display panel. The pixel compensation circuit compensates the display data with the corresponding data compensation value included in the compensation table to generate compensated display data, wherein the compensated display data are displayed on the display panel of the display apparatus.
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公开(公告)号：US20210304677A1
公开(公告)日：2021-09-30
申请号：US17199468
申请日：2021-03-12
发明人： Jun-Yu Yang , Wei-Jhe Ma , Yung-Cheng Tsai , Feng-Ting Pai
IPC分类号： G09G3/3258
摘要： The present invention provides an image compensation circuit generating output image data to drive a display panel having pixels. The image compensation circuit includes first/second control circuits and first/second compensation circuits. The first control circuit may receive input image data for the pixels and generate a plurality of first compensation values corresponding to compensation for voltage drop on the display panel according to the input image data. The first compensation circuit may compensate the input image data for the pixels with the first compensation values. The second control circuit may receive the first compensation values from the first control circuit and generate a plurality of second compensation values corresponding to compensation for channel length modulation (CLM) effect of the pixels according to the first compensation values. The second compensation circuit may compensate the input image data for the pixels with the second compensation values, to generate the output image data.
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公开(公告)号：US20200251033A1
公开(公告)日：2020-08-06
申请号：US16262934
申请日：2019-01-31
发明人： Wei-Jhe Ma , Yung-Cheng Tsai , Feng-Ting Pai
IPC分类号： G09G3/20
摘要： A display apparatus and a brightness uniformity compensation method are introduced. The display apparatus includes a display panel, a content analysis circuit, a compensation table generator and a pixel compensation circuit. The content analysis circuit receives display data for a pixel of the display panel and analyzes a display load of the display data to generate a data compensation value. The compensation table generator generates a compensation table that includes the data compensation value corresponding to the display data of each pixel of the display panel. The pixel compensation circuit compensates the display data with the corresponding data compensation value included in the compensation table to generate compensated display data, wherein the compensated display data are displayed on the display panel of the display apparatus.
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公开(公告)号：US20230300284A1
公开(公告)日：2023-09-21
申请号：US18113059
申请日：2023-02-23
发明人： Wei-Jhe Ma , Feng-Ting Pai , Jun-Yu Yang , Hsin-Yu Pan
IPC分类号： H04N5/202 , H04N9/69 , G06V10/74 , G09G3/3208
CPC分类号： H04N5/202 , H04N9/69 , G06V10/761 , G09G3/3208 , G09G2320/0276 , G09G2320/0673
摘要： An image compensation circuit for controlling a luminance of a display panel is configured to: receive a plurality of image data; perform gamma tuning to convert the plurality of image data into a plurality of original gamma codes according to a plurality of first compensation values corresponding to a first operation mode; calculate a plurality of gamma difference values between the plurality of first compensation values and a plurality of second compensation values corresponding to a second operation mode; and calculate a plurality of output gamma codes corresponding to the second operation mode according to the plurality of original gamma codes by using the plurality of gamma difference values.
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公开(公告)号：US20220309993A1
公开(公告)日：2022-09-29
申请号：US17701675
申请日：2022-03-23
发明人： Wei-Jhe Ma , Feng-Ting Pai , Hui-Hung Chang
IPC分类号： G09G3/20
摘要： A display driver integrated circuit and a display driving method are provided. The display driver integrated circuit is suitable for driving a display panel of an electronic device. The display driver integrated circuit includes an image processing circuit, a timing controller, and a data driving circuit. The image processing circuit is configured to generate an output image based on time information, a background image, and an original time indication image. The timing controller is coupled to the image processing circuit, and configured to receive the output image. The data driving circuit is coupled to the timing controller, and configured to receive the output image and generate data voltages according to the output image. The data driving circuit drives the display panel according to the data voltages regarding to the output image.
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