公开(公告)号：US20230087480A1

公开(公告)日：2023-03-23

申请号：US17820190

申请日：2022-08-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  ByoungSuk Kim ,  David S. Zalatimo ,  Graeme M. Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R. Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC: G09G3/20 ,  H03M1/10

Abstract: An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.