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. 10, 2023
Filed:
Oct. 25, 2021
Lms Co., Ltd., Pyeongtaek-si, KR;
Jinhwan Kim, Pyeongtaek-si, KR;
Sungsik Cho, Pyeongtaek-si, KR;
Woojong Lee, Pyeongtaek-si, KR;
Changgoo Park, Pyeongtaek-si, KR;
LMS CO., LTD., Pyeongtaek-si, KR;
Abstract
A backlight unit according to various embodiments of the disclosure may include a light source, a light guide plate configured to guide light emitted from the light source and disposed to face in a first direction, and an optical film disposed over the light guide plate. The optical film may include a first prism sheet including first prism structures arranged side by side to each other along a second direction perpendicular to the first direction, and a second prism sheet disposed over the first prism sheet and including second prism structures arranged side by side to each other along a third direction forming an acute angle with the second direction.