Apple Inc.

Yongjun Li

Weijun Yao

Jiayi Jin

Maofeng Yang

Paolo Sacchetto

Shengkui Gao

Derek Keith Shaeffer

Baris Cagdaser

Yun Yu Wang

Wei Hsin Yao

Tsung-Ting Tsai

Chaohao Wang

Hyunwoo Nho

Peter F Holland

Jun Li

Junhua Tan

Hyunsoo Kim

Injae Hwang

David Andrew Doyle

Jiun-Jye Chang

Yifan Zhang

Ching-Sang Chuang

Chuang Qian

Tae-Wook Koh

Majid Gharghi

Abhishek Dhanda

Alex H Pai

Ross Thompson

Mohammad Reza Esmaeili Rad

Kiran S Pillai

James P Landry

Jiye Lee

Xin Lin

Hei Kam

Hsin-Ying Chiu

Patrick A Carroll

Aida Raquel Colon-Berrios

Shihchang Chang

Michael Hong Yeol Lim

Pyungwoo Yeon

A system may include an electronic display panel having pixels, where each pixel emits light based on a respective programming signal applied to the pixel. The system may also include processing circuitry to determine a respective control signal upon which the respective programing signal for each pixel is based. The processing circuitry may determine each respective control signal based at least in part on approximations of respective pixel brightness-to-data relationship as defined by a function having variables stored in memory accessible to the processing circuitry.

Dynamic uniformity compensation for electronic display

Various embodiments disclosed herein include techniques for operating a multiple camera system. In some embodiments, a primary camera may be selected from a plurality of cameras using object distance estimates, distance error information, and minimum object distances for some or all of the plurality of cameras. In other embodiments, a camera may be configured to use defocus information to obtain an object distance estimate to a target object closer than a minimum object distance of the camera. This object distance estimate may be used to assist in focusing another camera of the multi-camera system.

Camera switchover control techniques for multiple-camera systems

An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.

Reference pixel stressing for burn-in compensation systems and methods

A method of adjusting a test gray voltages applied to a component of an electronic display during a test frame between image frames, wherein the adjustment is based at least in part on the control signal to the component during a prior image frame. The method may reduce hysteresis effects on the extraction of sensed currents of the component during the test frame, which may increase the accuracy and/or consistency of determined parameters evaluated from the sensed currents. The determined parameters may include temperature and/or aging of the component. The determined parameters may be used to adjust control signals for the component and other components in a region near the component during the next image frame.

Systems and methods of reducing hysteresis for display component control and improving parameter extraction

An electronic device includes an electronic display having an active area comprising a pixel. The electronic device also includes processing circuitry configured to receive image data and predict a change in threshold voltage associated with a transistor of the pixel based at least in part on the image data. Furthermore, the processing circuitry is configured to adjust the image data to generate adjusted image data based at least in part on the predicted change in threshold voltage.

Image data compensation based on predicted changes in threshold voltage of pixel transistors

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Fremont, CA, United States of America

Yongjun Li