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.

Date of Patent:
Jul. 29, 2025

Filed:

Jul. 29, 2024
Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Seungsu Ha, Seoul, KR;

Yongmin Jung, Seoul, KR;

Seunghwan Shim, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133609 (2013.01); G02F 1/133603 (2013.01); G02F 1/133607 (2021.01); G02F 1/133614 (2021.01);
Abstract

Disclosed is a backlight unit, including a light assembly having a light emitting lamp emitting a first light of a first wavelength band and a resin cover surrounding the light emitting lamp and including a first phosphor and a second phosphor, and an optical sheet including a third phosphor and optically converting an incident light of the light assembly incident on a rear surface to emit the optically converted light to a front surface, wherein the first phosphor converts the first light into a second light of a second wavelength band greater than the first wavelength band, wherein the second phosphor converts the first light into a third light of a third wavelength band greater than the second wavelength band, and wherein the third phosphor converts the second light into the third light of the third wavelength band.


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