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:
Jan. 28, 2020
Filed:
Sep. 20, 2019
Apple Inc., Cupertino, CA (US);
Keitaro Yamashita, San Jose, CA (US);
Abbas Jamshidi Roudbari, San Jose, CA (US);
Shin-Hung Yeh, Taipei, TW;
Tsung-Ting Tsai, Cupertino, CA (US);
Shih-Chang Chang, Cupertino, CA (US);
Ting-Kuo Chang, San Jose, CA (US);
Ki Yeol Byun, Santa Clara, CA (US);
Warren S. Rieutort-Louis, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may include a display such as a light-emitting diode display. The electronic device may be a head-mounted device that provides a virtual reality or augmented reality environment to a user. To reduce artifacts in the display, a display may be operable in both a normal scanning mode and a partial scanning mode. In the normal scanning mode, every row of the display may be enabled to emit light in each frame. In the partial scanning mode, only a subset of the rows of the display may be enabled to emit light in each frame. The display may have a higher refresh rate in the partial scanning mode than in the normal scanning mode. To ensure uniform transistor stress across the display, the scanning driver for the display may scan the disabled rows in the partial scanning mode even though the rows will not be used to emit light.