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:
Oct. 01, 2024
Filed:
Mar. 31, 2023
Apple Inc., Cupertino, CA (US);
Jaein Choi, Sunnyvale, CA (US);
Hairong Tang, Los Gatos, CA (US);
Gloria Wong, San Jose, CA (US);
Sunggu Kang, San Jose, CA (US);
Younggu Lee, San Jose, CA (US);
Gwanwoo Park, Seoul, KR;
Chun-Yao Huang, San Jose, CA (US);
Andrew Lin, San Jose, CA (US);
Cheuk Chi Lo, Belmont, CA (US);
Enkhamgalan Dorjgotov, Sunnyvale, CA (US);
Michael Slootsky, Santa Clara, CA (US);
Rui Liu, San Jose, CA (US);
Wendi Chang, Sunnyvale, CA (US);
Cheng Chen, San Jose, CA (US);
Yusuke Fujino, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.