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公开(公告)号：US20250095576A1
公开(公告)日：2025-03-20
申请号：US18883524
申请日：2024-09-12
Applicant: Apple Inc.
Inventor： Shatam Agarwal , David S Zalatimo , Fenghua Zheng , Jason N Gomez , Nikolaus Hammler , Patrick R Cruce , Vehbi Calayir , Yue Zhang
IPC: G09G3/3233 , G09G3/20
Abstract: An electronic device may include a display panel having display pixels and pixel drive circuitry that drives the display pixels based on a set of analog voltages according to display image data. Additionally, the electronic device may include a gamma generator to generate the set of analog voltages and voltage regulating circuitry that adjusts a supply voltage to a portion of the gamma generator based on a brightness setting of the display panel.
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公开(公告)号：US11810494B2
公开(公告)日：2023-11-07
申请号：US17820190
申请日：2022-08-16
Applicant: Apple Inc.
Inventor： Jie Won Ryu , ByoungSuk Kim , David S Zalatimo , Graeme M Williams , Hyunsoo Kim , Hyunwoo Nho , Jesse R Manders , Kingsuk Brahma , Li-Xuan Chuo , Sachiko Oda , Shatam Agarwal , Yao Shi
CPC classification number: G09G3/2044 , H03M1/1019 , G09G2310/027 , G09G2320/0276
Abstract: An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.
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公开(公告)号：US20240233604A9
公开(公告)日：2024-07-11
申请号：US18446694
申请日：2023-08-09
Applicant: Apple Inc.
Inventor： Jongyup Lim , David S Zalatimo , Hyunwoo Nho , Jie Won Ryu , Koorosh Aflatooni , Myungjoon Choi , Wei Xiong
CPC classification number: G09G3/2044 , G06T11/001
Abstract: An electronic device may include an electronic display having multiple display pixels that display an image based on dithered image data. The electronic device may also include image processing circuitry that generates the dithered image data based on input image data and a threshold gray level that is greater than one. Generating the dithered image data may include replacing each gray level of the input image data that is less than the threshold gray level with either a zero gray level or the threshold gray level according to a dither pattern.
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公开(公告)号：US20240135856A1
公开(公告)日：2024-04-25
申请号：US18446694
申请日：2023-08-08
Applicant: Apple Inc.
Inventor： Jongyup Lim , David S Zalatimo , Hyunwoo Nho , Jie Won Ryu , Koorosh Aflatooni , Myungjoon Choi , Wei Xiong
CPC classification number: G09G3/2044 , G06T11/001
Abstract: An electronic device may include an electronic display having multiple display pixels that display an image based on dithered image data. The electronic device may also include image processing circuitry that generates the dithered image data based on input image data and a threshold gray level that is greater than one. Generating the dithered image data may include replacing each gray level of the input image data that is less than the threshold gray level with either a zero gray level or the threshold gray level according to a dither pattern.
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