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公开(公告)号：US20240054942A1
公开(公告)日：2024-02-15
申请号：US18223794
申请日：2023-07-19
Applicant: Apple Inc.
Inventor： Chengrui Le , Fang-Cheng Lin , Hyunwoo Nho , Lingyu Hong , Yi-Pai Huang , Ze Yuan
IPC: G09G3/32 , G09G3/36 , G09G3/3208
CPC classification number: G09G3/32 , G09G3/3611 , G09G3/3208 , G09G2320/0261 , G09G2340/0435 , G09G2300/06 , G09G2310/08
Abstract: Electronic devices, displays, and methods are provided for performing pixel grouping to enable efficient display operation at higher frame rates and lower image resolutions without sacrificing significant image quality. An electronic display may include a number of rows of display pixels and driving circuitry. The driving circuitry may receive a frame of image data and drive a set of adjacent groups of rows of equal number using the frame of image data. Adjacent groups of rows may respectively include two or more adjacent rows.
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Patent Agency Ranking
公开(公告)号：US11804187B2
公开(公告)日：2023-10-31
申请号：US17848929
申请日：2022-06-24
Applicant: Apple Inc.
Inventor： Fang-Cheng Lin , Chengrui Le , Yi-Pai Huang , Suraj P Gorkhali , Tobias Jung , He Li , Yansong Liu
CPC classification number: G09G3/3413 , G09G3/3426 , G09G3/36 , G09G2320/0233 , G09G2320/0242 , G09G2320/0693 , G09G2360/16
Abstract: An electronic device may include a display having an array of pixels and a backlight that provides backlight illumination for the array of pixels. The backlight may be a direct-lit backlight with a two-dimensional array of light-emitting diodes operable in a local dimming scheme. The electronic device may include control circuitry that provides pixel signals to the array of pixels and backlight signals to the backlight. The control circuitry may adjust the pixel signals and the backlight signals to compensate for brightness and color non-uniformity in the backlight. To compensate for image-dependent backlight non-uniformity, the control circuitry may simulate artificial backlight data based on the target image to be displayed and stored point spread information. To compensate for white-point-dependent backlight non-uniformity, the control circuitry may use measured actual backlight data that describes color variations across the backlight for a given target white point.
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公开(公告)号：US20220415271A1
公开(公告)日：2022-12-29
申请号：US17848929
申请日：2022-06-24
Applicant: Apple Inc.
Inventor： Fang-Cheng Lin , Chengrui Le , Yi-Pai Huang , Suraj P Gorkhali , Tobias Jung , He Li , Yansong Liu
IPC: G09G3/34 , G02F1/13357 , G02F1/1335
Abstract: An electronic device may include a display having an array of pixels and a backlight that provides backlight illumination for the array of pixels. The backlight may be a direct-lit backlight with a two-dimensional array of light-emitting diodes operable in a local dimming scheme. The electronic device may include control circuitry that provides pixel signals to the array of pixels and backlight signals to the backlight. The control circuitry may adjust the pixel signals and the backlight signals to compensate for brightness and color non-uniformity in the backlight. To compensate for image-dependent backlight non-uniformity, the control circuitry may simulate artificial backlight data based on the target image to be displayed and stored point spread information. To compensate for white-point-dependent backlight non-uniformity, the control circuitry may use measured actual backlight data that describes color variations across the backlight for a given target white point.
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公开(公告)号：US20240105132A1
公开(公告)日：2024-03-28
申请号：US18452802
申请日：2023-08-21
Applicant: Apple Inc.
Inventor： Chengrui Le , Fang-Cheng Lin , Alexey Kornienko
CPC classification number: G09G3/3413 , G09G3/342 , G09G3/36 , G09G2320/0646 , G09G2360/16
Abstract: A device may include an electronic display having a backlight that generates light and multiple display pixels that modulate the amount of generated light emitted from the electronic display based on compensated image data. The backlight may include multiple illuminators that generate the light, and a first color component illuminator may have a slower response rate than a second color component illuminator. The device may also include image processing circuitry that generates the compensated image data by compensating input image data for a color shift associated with a change in brightness of the backlight and the slower response rate of the first color component illuminator. The input image data may be compensated by increasing first color component pixel values of the input image data relative to second color component pixel values of the input image data, and the compensated image data may be output to the electronic display.
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公开(公告)号：US11776492B1
公开(公告)日：2023-10-03
申请号：US17934568
申请日：2022-09-22
Applicant: Apple Inc.
Inventor： Chengrui Le , Fang-Cheng Lin , Alexey Kornienko
CPC classification number: G09G3/3413 , G09G3/342 , G09G3/36 , G09G2320/0646 , G09G2360/16
Abstract: A device may include an electronic display having a backlight that generates light and multiple display pixels that modulate the amount of generated light emitted from the electronic display based on compensated image data. The backlight may include multiple illuminators that generate the light, and a first color component illuminator may have a slower response rate than a second color component illuminator. The device may also include image processing circuitry that generates the compensated image data by compensating input image data for a color shift associated with a change in brightness of the backlight and the slower response rate of the first color component illuminator. The input image data may be compensated by increasing first color component pixel values of the input image data relative to second color component pixel values of the input image data, and the compensated image data may be output to the electronic display.
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公开(公告)号：US12236905B2
公开(公告)日：2025-02-25
申请号：US18452802
申请日：2023-08-21
Applicant: Apple Inc.
Inventor： Chengrui Le , Fang-Cheng Lin , Alexey Kornienko
Abstract: A device may include an electronic display having a backlight that generates light and multiple display pixels that modulate the amount of generated light emitted from the electronic display based on compensated image data. The backlight may include multiple illuminators that generate the light, and a first color component illuminator may have a slower response rate than a second color component illuminator. The device may also include image processing circuitry that generates the compensated image data by compensating input image data for a color shift associated with a change in brightness of the backlight and the slower response rate of the first color component illuminator. The input image data may be compensated by increasing first color component pixel values of the input image data relative to second color component pixel values of the input image data, and the compensated image data may be output to the electronic display.
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