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:
Mar. 31, 2026
Filed:
Feb. 23, 2023
Apple Inc., Cupertino, CA (US);
Dmitry S. Sizov, San Jose, CA (US);
Xiaobin Xin, Campbell, CA (US);
Hyungryul Choi, San Jose, CA (US);
Vikrant Bhakta, Santa Clara, CA (US);
Fang Ou, San Diego, CA (US);
Lina He, San Jose, CA (US);
Sergei Y. Yakovenko, Pine Grove, CA (US);
Ranojoy Bose, Fremont, CA (US);
Paul S. Drzaic, Morgan Hill, CA (US);
Abstract
An electronic device may provide image light to an eye box. The display may include a light source panel that emits the image light. A waveguide may direct the image light towards the eye box. An input coupler may couple the image light into the waveguide and an output coupler may couple the image light out of the waveguide. A color filter may be optically interposed between the light source panel and the output coupler. The color filter may filter the image light using a steep cutoff characteristic. The color filter may allow the image light to exhibit a desired color point while also allowing the light source panel to use light emitters having peak emission wavelengths that maximize the efficiency of the light emitters and thus the power efficiency of the device.