公开(公告)号：US10409118B1

公开(公告)日：2019-09-10

申请号：US15498356

申请日：2017-04-26

Applicant: Apple Inc.

Inventor： Pei-En Chang ,  Szu-Hsien Lee ,  Hsin-Ying Chiu ,  Chun-Yao Huang ,  Kyung Wook Kim ,  Shih Chang Chang ,  Hossein Nemati

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1333 ,  H01L27/32 ,  G02F1/133

Abstract: An electronic device may have a housing and a display in the housing. The display may have one or more curved edges such as curved edges associated with rounded corners in the display and housing. The display may have an array of pixels. The display may include full-strength pixels and may have a band of antialiasing pixels having selectively reduced strengths to visually smooth content displayed along the curved edges. The pixels may be organic light-emitting diode pixels, liquid crystal display pixels, or other display pixels. Organic light-emitting diode pixels may have drive transistors and associated organic light-emitting diodes. Selectively elevated series or opaque light blocking structures of selectively reduced areas may be used to selectively reduce the strength of the antialiasing pixels. Liquid crystal display pixels may include electrodes of different shapes and/or opaque layer openings of different sizes to form antialiasing pixels in desired patterns.

公开(公告)号：US10943541B1

公开(公告)日：2021-03-09

申请号：US16556037

申请日：2019-08-29

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Hsin-Ying Chiu ,  Sun-Il Chang ,  Yunhui Hou ,  Jie Won Ryu ,  Hyunwoo Nho ,  Weichuan Yao ,  Shiping Shen ,  Injae Hwang ,  Hyunsoo Kim ,  Myungjoon Choi ,  Shengkui Gao ,  Chaohao Wang ,  Kingsuk Brahma ,  Jesse Aaron Richmond ,  Myung-Je Cho ,  Changki Min ,  Wei H. Yao

IPC: G09G5/00 ,  G09G3/3258 ,  G09G3/32 ,  G09G3/3233

Abstract: Current-voltage shift determination circuitry of a processing core complex coupled to the electronic display determines total current-voltage shift values at a pixel. The current-voltage shift determination circuitry then determines temperature-based current-voltage shift values at the pixel. The current-voltage shift determination circuitry extracts the temperature-based current-voltage shift values from the total current-voltage shift values to determine age-based voltage degradation values. Display compensation circuitry of the processing core complex adjusts display of image data by the pixel based on the age-based voltage degradation values. In this manner, voltage degradation due to pixel aging may be determined separately from current-voltage shift due to temperature, and, as such, be more accurately compensated for, resulting in better display of image data. Compensation may thus be performed based on the age of the pixels and a sensed temperature at the pixels, instead of by constantly sensing current across the diodes of the pixels.

公开(公告)号：US11004391B2

公开(公告)日：2021-05-11

申请号：US16869329

申请日：2020-05-07

Applicant: Apple Inc.

Inventor： Hei Kam ,  Junhua Tan ,  Wei H. Yao ,  Shihchang Chang ,  Derek K. Shaeffer ,  Chaohao Wang ,  Hyunwoo Nho ,  Yun Wang ,  Baris Cagdaser ,  Majid Gharghi ,  Yongjun Li ,  Aida Raquel Colon-Berrios ,  Mohammad Reza Esmaeili Rad ,  Hyunsoo Kim ,  Alex H. Pai ,  Hsin-Ying Chiu ,  Jiun-Jye Chang ,  Ching-Sang Chuang ,  Xin Lin

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/36 ,  G09G3/3291

Abstract: 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.