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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.:

US 12412527 B1

PDFFull Text
Date of Patent:
Sep. 09, 2025

Filed:

Apr. 05, 2024

Display pixel with a current sink to mitigate artifacts caused by an under-display light emitter

Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Shyuan Yang, San Jose, CA (US);

Abbas Jamshidi Roudbari, Saratoga, CA (US);

Jean-Pierre S Guillou, La Jolla, CA (US);

Mario Miscuglio, Sunnyvale, CA (US);

Ran Tu, Palo Alto, CA (US);

Ricardo A Peterson, Fremont, CA (US);

Salman Karbasi, San Jose, CA (US);

Snehal T Jariwala, San Jose, CA (US);

Ting-Kuo Chang, San Jose, CA (US);

Tsung-Ting Tsai, San Jose, CA (US);

Warren S Rieutort-Louis, Cupertino, CA (US);

Yang Xu, Santa Clara, CA (US);

Yi Qiao, San Jose, CA (US);

Yuchi Che, Santa Clara, CA (US);

Yue Cui, Los Gatos, CA (US);

Zhizhen Ma, Santa Clara, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:

Treyz Law Group, P.C.

Joseph F. Guihan

Primary Examiner:

Deeprose Subedi

Int. Cl.
CPC ...
H10F 55/00 (2025.01); G01J 1/44 (2006.01); G06F 3/01 (2006.01); G09G 3/3233 (2016.01); H10K 59/121 (2023.01); H10K 59/126 (2023.01); H10K 59/131 (2023.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); H10K 59/1213 (2023.02); H10K 59/126 (2023.02); H10K 59/131 (2023.02);
Abstract

A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. Display artifacts caused by a light emitter that operates through a display may be referred to as emitter artifacts. To mitigate emitter artifacts, a display pixel that overlaps the light emitter may include a transistor that provides a current sink to divert leakage current away from the light-emitting diode in that pixel. A shielding layer may be interposed between the light emitter and a display pixel. The shielding layer may block light from the light emitter. The shielding layer may have an opening that exposes one transistor in the pixel to the light from the light emitter. Pixels that overlap the light emitter may have larger anodes than pixels that do not overlap the light emitter.

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