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. 20, 2026
Filed:
Jul. 12, 2021
Lg Electronics Inc., Seoul, KR;
Bokyung Kang, Seoul, KR;
Gunyoung Hong, Seoul, KR;
Younggil Yoo, Seoul, KR;
Minsung Kim, Seoul, KR;
Kyungpil Kim, Seoul, KR;
Seungmi Baek, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
An image projection apparatus is disclosed. The image projection apparatus according to an embodiment of the present disclosure includes: a light source configured to output blue light; and a phosphor wheel configured to output a plurality of colors of light based on the blue light incident upon rotation, wherein the phosphor wheel includes: a substrate; a yellow phosphor disposed in a first region on the substrate for output of yellow light; and a green phosphor disposed in a second region on the substrate for output of green light, wherein the green phosphor includes (Lu1−xYx)3Al5O12, with 0<x<0.8. Accordingly, highly efficient light output may be provided, and color purity may be improved.