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:
Feb. 28, 2012
Filed:
Dec. 06, 2007
Yongsu Kim, Cheongju, KR;
Seungho Lee, Cheongju, KR;
Changjong Kim, Cheongju, KR;
Seungwook Kwon, Cheongju, KR;
Kabjin Hwang, Cheongju, KR;
Cheol Yoon, Cheongju, KR;
Yongsu Kim, Cheongju, KR;
Seungho Lee, Cheongju, KR;
Changjong Kim, Cheongju, KR;
Seungwook Kwon, Cheongju, KR;
Kabjin Hwang, Cheongju, KR;
Cheol Yoon, Cheongju, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An optical film, a backlight unit having the same, and a liquid crystal display device having the same are disclosed. The optical film comprises a base film and a plurality of structures disposed on the base film, at least one of the structures comprising a plurality of beads with a diffusion portion having a first diameter and a transmission portion having a second diameter integrally formed with each other.