公开(公告)号：US12230224B1

公开(公告)日：2025-02-18

申请号：US18353985

申请日：2023-07-18

Applicant: Apple Inc.

Inventor： Elizabeth Pieri ,  Teun R Baar ,  Jackson K Roland

IPC: G09G3/34

Abstract: An electronic device may be provided with a display. The display may be configured to display standard dynamic range image content and high dynamic range image content at the same time. The control circuitry may dynamically adjust an amount of headroom for the high dynamic range image content to avoid washing out the standard dynamic range image content. For example, the control circuitry may reduce the amount of headroom available for high dynamic range image content with high average pixel luminance levels and low screen coverage. The headroom may be increased as the average pixel luminance levels decrease and/or as screen coverage increases. Different high dynamic range images that are displayed at the same time may be assigned different amounts of headroom (e.g., different peak brightness levels) based on average pixel luminance values, screen coverage, whether or not the content is within an active window on the display, etc.

公开(公告)号：US20250022392A1

公开(公告)日：2025-01-16

申请号：US18537216

申请日：2023-12-12

Applicant: Apple Inc.

Inventor： Harini Kishan ,  Ralf Habel ,  Zhen Zhang ,  Yi Huang ,  Miguel Angel Lopez Alvarez ,  Shobhit Chaudhry ,  Pavel V Dudrenov ,  Gilles M Cadet ,  Ping-Yen Chou ,  Yang Li ,  Kevin Cossu ,  Alfred B Huergo Wagner ,  Seung Wook Kim ,  Felipe Bacim De Araujo E Silva ,  Jessica Murphy ,  Lincoln-Shaun Sanders ,  Francisco H Imai ,  Jiaying Wu ,  Juan He ,  Jackson K Roland

IPC: G09G3/00

Abstract: A head-mounted device may have an inner display that displays images for a user and an outer display that informs nearby people of the status of the user and inner display. For example, the outer display may display an image of a face, an abstract layer, or both, depending on whether the inner display is operating in passthrough mode, mixed reality mode, or virtual reality mode. An ambient light sensor in the head-mounted device may be used to measure the brightness and color of ambient light. The white point of the face layer on the outer display may be adapted to the color of ambient light, whereas the white point of the abstract layer on the outer display may remain fixed. The white point of a display may be a correlated color temperature setting (e.g., measured in degrees Kelvin) that determines the warmth or coolness of displayed colors.