Apple Inc.

Soojin Park

John Z Zhong

Shih Chang Chang

Wei Hsin Yao

Cheng Kai Chen

Chin-Wei Lin

Rui Liu

Hung Sheng Lin

Hyunwoo Nho

Yafei Bi

Chieh-Wei Chen

Marc Albrecht

Shengkui Gao

Jungmin Lee

Pierre-Yves Emelie

Sean C Chang

Meng-Huan Ho

Bhadrinarayana Lalgudi Visweswaran

Myung-Je Cho

Minhyuk Choi

Mohammad Hajirostam

Anshi Liang

Bhadrinarayana L Visweswaran

Sarfaraz Moh

A display device may include a processor that may receive image data, such that the image data may include gray level data and display brightness value (DBV) data for a first pixel of a display. The processor may then determine a gain compensation factor associated with the first pixel based on a correction spatial map, a brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may then determine an offset compensation factor associated with the first pixel based on the correction spatial map, the brightness adaptation lookup table (LUT), the gray level data, and the DBV data. The processor may generate compensated gray level data by applying the gain compensation factor and the offset compensation factor to the gray level data and transmit the compensated gray level data to pixel driving circuitry associated with the first pixel.

Applying gain and offset correction factors for pixel uniformity compensation in display panels

A display may have an array of pixels with light-emitting diodes that emit light to form images. The display may have a substrate with thin-film transistor circuitry for supplying signals to the light-emitting diodes. Anodes may be formed on the thin-film transistor circuitry, emissive material may be formed on the anodes, and a cathode layer may overlap the anodes. During operation, currents may flow between the anodes and the cathode layer to illuminate the diodes. An array of electrical components such as an array of light sensors in an integrated circuit may be mounted under the substrate. An array of corresponding light transmitting windows may be formed in the display each of which may allow light to pass through the display to a corresponding one of the light sensors. Light transmitting windows may be formed by patterning the cathode layer and supplying the windows with antireflection layers.

Display with light transmitting windows

Growing community of inventors

Santa Clara, CA, United States of America

Soojin Park