The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2024
Filed:
Feb. 26, 2020
Apple Inc., Cupertino, CA (US);
Hyunwoo Nho, Palo Alto, CA (US);
Myungjoon Choi, Sunnyvale, CA (US);
Hyunsoo Kim, Mountain View, CA (US);
Mohammad Ali Jangda, Santa Clara, CA (US);
Jie Won Ryu, Santa Clara, CA (US);
Shiping Shen, Cupertino, CA (US);
Kingsuk Brahma, Mountain View, CA (US);
Chaohao Wang, Sunnyvale, CA (US);
Wei H. Yao, Palo Alto, CA (US);
Alex H. Pai, Milpitas, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device includes a display having multiple regions of pixels. Each pixel includes a diode that emits light based on an amount of current through the diode and a transistor that controls the amount of current flowing through the diode. The electronic device includes driver-integrated circuitry that reduces hysteresis in a first transistor of a first pixel of a region of pixels, settles a threshold voltage of the first transistor, applies a test voltage to the first transistor, and senses a current across the first transistor. The electronic device includes processing circuitry that determines a predetermined voltage based on the current and a predetermined current-voltage relationship determined at an initial temperature, determines a voltage difference between the test voltage and the predetermined voltage, and applies the predetermined voltage and the voltage difference to a second transistor of a second pixel of the region of pixels.