公开(公告)号：US12211456B2

公开(公告)日：2025-01-28

申请号：US17934570

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Christopher P Tann ,  Mahesh B Chappalli ,  Alexey Kornienko

IPC: G09G3/34

Abstract: A device may include an electronic display to display an image frame based on first and second color component input image data. The electronic display may include a first illuminator to generate a first light at a first brightness level, a second illuminator to generate a second light of a different color at a second brightness level, a first set of pixel locations to emit the first light based on a first set of pixel values, and a second set of pixel locations to emit the second light based on a second set of pixel values. The electronic device may also include pixel contrast control circuitry that determines the first brightness level and the first set of pixel values based on the first color component input image data and determines the second brightness level and the second set of pixel values based on the second color component input image data.

公开(公告)号：US20240331119A1

公开(公告)日：2024-10-03

申请号：US18742998

申请日：2024-06-13

Applicant: Apple Inc.

Inventor： Mahesh B. Chappalli ,  Alexey Kornienko

IPC: G06T5/92 ,  G06T5/40

CPC classification number: G06T5/92 ,  G06T5/40 ,  G06T2207/20208

Abstract: Methods and systems include determining an upper boundary of brightness values of high-dynamic range image content. Using the determined upper boundary, end points of bins of histogram values are determined. Using the determined end points of the bins of histogram values, luma values are allocated to the bins. The high-dynamic range image content is processed based at least in part on the allocations to the bins. Image data including the processed high-dynamic range image content is displayed via an electronic display.

公开(公告)号：US20240105131A1

公开(公告)日：2024-03-28

申请号：US17934570

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Christopher P Tann ,  Mahesh B Chappalli ,  Alexey Kornienko

IPC: G09G3/34

CPC classification number: G09G3/3413 ,  G09G3/342 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/066 ,  G09G2320/0666 ,  G09G2320/0686

Abstract: A device may include an electronic display to display an image frame based on first and second color component input image data. The electronic display may include a first illuminator to generate a first light at a first brightness level, a second illuminator to generate a second light of a different color at a second brightness level, a first set of pixel locations to emit the first light based on a first set of pixel values, and a second set of pixel locations to emit the second light based on a second set of pixel values. The electronic device may also include pixel contrast control circuitry that determines the first brightness level and the first set of pixel values based on the first color component input image data and determines the second brightness level and the second set of pixel values based on the second color component input image data.

公开(公告)号：US20220067891A1

公开(公告)日：2022-03-03

申请号：US17362923

申请日：2021-06-29

Applicant: Apple Inc.

Inventor： Mahesh B. Chappalli ,  Alexey Kornienko

IPC: G06T5/00 ,  G06T5/40

Abstract: Methods and systems include determining an upper boundary of brightness values of high-dynamic range image content. Using the determined upper boundary, end points of bins of histogram values are determined. Using the determined end points of the bins of histogram values, luma values are allocated to the bins. The high-dynamic range image content is processed based at least in part on the allocations to the bins. Image data including the processed high-dynamic range image content is displayed via an electronic display.