Apple Inc.

Yang Xu

Jean-Pierre Simon Guillou

Kingsuk Brahma

Jie Won Ryu

Mohammad Ali Jangda

Yi Qiao

Jenny Hu

Wanqing Xin

Mario Miscuglio

Snehal T Jariwala

Tsung-Ting Tsai

Chaohao Wang

Ting-Kuo Chang

Paolo Sacchetto

Yafei Bi

Abbas Jamshidi Roudbari

Warren S Rieutort-Louis

Mahesh B Chappalli

Weijun Yao

Marc Joseph DeVincentis

Shengkui Gao

Shyuan Yang

Arthur L Spence

Koorosh Aflatooni

Yuchi Che

Yingying Tang

Yue Jack Chu

Graeme M Williams

Ricardo A Peterson

Alexey Kornienko

Yue Cui

Salman Karbasi

Zuo Xia

Ran Tu

Ming Xu

Zhe Hua

Giovanni Corradini

Asha G Karvaje

Aishwarya Prem Renu

Martin Kocicka

Andrew D Pangborn

Zhizhen Ma

Xin Zheng

A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. Display artifacts caused by a light emitter that operates through a display may be referred to as emitter artifacts. To mitigate emitter artifacts, a display pixel that overlaps the light emitter may include a transistor that provides a current sink to divert leakage current away from the light-emitting diode in that pixel. A shielding layer may be interposed between the light emitter and a display pixel. The shielding layer may block light from the light emitter. The shielding layer may have an opening that exposes one transistor in the pixel to the light from the light emitter. Pixels that overlap the light emitter may have larger anodes than pixels that do not overlap the light emitter.

Display pixel with a current sink to mitigate artifacts caused by an under-display light emitter

Systems and methods described herein may utilize a non-linear scaling relationship to scale brightness of selective portions of the display in a manner that reduces or eliminates perceivable banding effects. By non-linearly controlling changes in brightness of the display, a viewer may perceive a more uniform, linear dimming towards the relatively dimmer region without perceiving banding, leading to improved user experience when viewing the electronic display.

Display panel brightness control based on gaussian edges

This disclosure provide various techniques for tracking emission profiles on an electronic display. An emission profile may be applied to the electronic display in order to illuminate certain pixels and deactivate (e.g., turn off) certain pixels in the electronic display to facilitate refreshing (e.g., programming with new image data) the deactivated pixels. A real-time row-based average pixel level or average pixel luminance calculation architecture may track the one or more EM profiles to accurately model EM profile behavior, which may enable accurate calculation of the average pixel level or average pixel luminance of the electronic display at any one point in time. The accurate average pixel level or average pixel luminance calculations effectuated by the EM profile tracking may be used to reduce the IR drop, improve real-time peak-luminance control, and improve the performance of under-display sensors, among other advantages.

Emission profile tracking for electronic displays

Systems and methods are described herein to control brightness based on image content or other inputs to a display system. A dual-control system may integrate both slow control operations and fast control operations into a cohesive brightness management system. By using both shorter-term (e.g., fast control) and longer-term (e.g., slow control) brightness adjustment operations, the electronic device may quickly respond to high luminance and high brightness situations that may cause burn-in into the display, image artifacts, or other damage. Responding quickly to these high consumption situations may prevent damage or perceivable upset to an ongoing process, among other benefits.

Content dependent brightness management system

Growing community of inventors

Santa Clara, CA, United States of America

Yang Xu