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. 13, 2026
Filed:
Feb. 28, 2024
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Shenglin Ye, Santa Clara, CA (US);
Xinyu Zhu, San Jose, CA (US);
Rungrot Kitsomboonloha, Los Gatos, CA (US);
Cheonhong Kim, Mountain View, CA (US);
Sascha Hallstein, Saratoga, CA (US);
Wook Jin Han, Sunnyvale, CA (US);
Ruiqing MA, Kirkland, WA (US);
Xiangtong Li, San Jose, CA (US);
Yu-Jen Wang, San Jose, CA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A liquid crystal display panel for near-eye display comprises a liquid crystal (LC) panel and a backlight unit (BLU). The BLU includes an array of blue light-emitting diodes (LEDs); a light guide plate configured to guide the blue light from the array of blue LEDs through total internal reflection, and couple portions of the blue light guided by the light guide plate out of the light guide plate; a quantum dot film including quantum dots configured to absorb blue light and emit red and green light; a brightness enhancement film configured to transmit incident light within an angular range and reflect incident light outside of the angular range; and an optical efficiency enhancement film configured to modify an angular beam profile of light from the quantum dot film such that the light transmitted by the brightness enhancement film has a peak intensity in a direction perpendicular to the LC panel.