Apple Inc.

Feng Wen

Warren S Rieutort-Louis

Kingsuk Brahma

Qing Li

Yuchi Che

Graeme M Williams

Kyounghwan Kim

Tsung-Ting Tsai

Ting-Kuo Chang

Hyunwoo Nho

Peter F Holland

Abbas Jamshidi Roudbari

Chieh-Wei Chen

Jie Won Ryu

Mahesh B Chappalli

Tong Chen

Marc Joseph DeVincentis

Shyuan Yang

Mark T Winkler

Injae Hwang

Yingying Tang

Jenny Hu

Christopher Edward Glazowski

Wenrui Cai

Yue Jack Chu

Ricardo A Peterson

Chaohao Wang

Ce Zhang

Salman Kabir

Bo-Ren Wang

Shawn P Hurley

Hei Kam

Zhe Hua

Ximeng Guan

Clint M Perlaki

David R Manly

Hyun H Boo

Kevin J Choboter

Lu Yan

Na Zhu

Wenbing Hu

Junbo Wu

An electronic device includes a display and a sensor underneath the display. The display has a full pixel density region and a reduced pixel density region. Compared to pixels in the full pixel density region, pixels in the reduced pixel density region can be controlled using overdriven power supply voltages, overdriven scan control signals, different initialization and reset voltages, and can include capacitors and transistors with different physical and electrical characteristics. Gate drivers provide scan signals to pixels in the full pixel density region, whereas overdrive buffers provide overdrive scan signals to pixels in the reduced pixel density region. The pixels in the full pixel density region and the pixels in the reduced pixel density region can be controlled using different black level or gamma settings for each color channel and can be adjusted physically to match luminance, color, as well as to mitigate differences in temperature and aging impact.

Displays having reduced pixel density region with localized tuning

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, operating conditions for a display frame may be used to determine an optimal firing time for the light emitter during that display frame. The operating conditions used to determine the optimal firing time may include emitter operating conditions, display content statistics, display brightness, temperature, and refresh rate. Operating conditions from one or more previous frames may be stored in a frame buffer and may be used to help determine the optimal firing time for the light emitter during a display frame. Pixel values for the display may be modified to mitigate emitter artifacts.

Mitigating artifacts caused by an under-display light emitter

This disclosure is directed towards systems and methods of power saving in electronic displays based on changing clock signal frequencies supplied to the gate-in-panel (GIP) circuitry during extended blanking modes of the electronic display. The display driver circuitry of the display may reduce and/or halt clock signal frequencies sent to GIP circuitry in the display, to reduce power output during extended blanking modes of the electronic display.

Systems and methods for clock frequency control during low display refresh rates in electronic devices

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Cupertino, CA, United States of America

Feng Wen