Apple Inc.

Intel Corporation

Manev Luthra

David S Zalatimo

Wei Hsin Yao

Marc Albrecht

Pierre-Yves Emelie

Sean C Chang

Tobias Jung

Chengrui Le

Duane M Petrovich

Lingyu Hong

Krishnakanth Venkata Sistla

Dean A Mulla

Fenghua Zheng

Daniel G Borkowski

Victor J Wu

Joseph P Manca

Victor Wu

Aspects of the subject technology relate to electronic devices with displays. A display may include an array of display pixels and control circuitry for operating the display. The control circuitry may determine, based on pixel values for a row of display pixels, that a current in common supply voltage circuitry for the display pixels will exceed a threshold, if the row of display pixels is operated using the pixel values. The control circuitry may modify the pixel values for the row of display pixels to reduce the current in the common supply voltage circuitry and/or prevent the current in the common supply voltage circuitry from exceeding the threshold.

Current protection systems and methods for electronic device displays

A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.

Display with adjustable direct-lit backlight units

Displays with adjustable direct-lit backlight units

Systems and methods may provide for determining, in a first domain that manages a state of a second domain, that the second domain is in the state and determining, in the first domain, that a periodic action has been scheduled to occur in the second domain while the second domain is in the state. Additionally, the periodic action may be documented as a missed event with respect to the second domain. In one example, documenting the periodic action as a missed event includes incrementing a missed event counter.

Tracking missed periodic actions across state domains

Growing community of inventors

Cupertino, CA, United States of America

Manev Luthra