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

US11004391B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Hei Kam · Sunnyvale, US
• Junhua Tan · Saratoga, US
• Wei H. Yao · Palo Alto, US
• Shihchang Chang · Cupertino, US
• Derek K. Shaeffer · Redwood City, US
• Chaohao Wang · Sunnyvale, US
• Hyunwoo Nho · Palo Alto, US
• Yun Wang · Cupertino, US
• Baris Cagdaser · Sunnyvale, US
• Majid Gharghi · Redwood City, US
• Yongjun Li · Tangxia, CN
• Aida R Colon-Berrios · Cupertino, US
• Mohammad Reza Esmaeili Rad · San Jose, US
• Hyunsoo Kim · Seoul, KR
• Alex H. Pai · Milpitas, US
• Hsin-Ying Chiu · San Jose, US
• Jiun-Jye Chang · Cupertino, US
• Ching-Sang Chuang · Sunnyvale, US
• Xin Lin · Princeton, US

Key dates

• Filing date: May 7, 2020
• Grant date: May 11, 2021
• Expiry date: May 7, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2340/16
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

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.