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.:

US 12158604 B1

Date of Patent:

Dec. 03, 2024

Filed:

Jan. 24, 2024

Backlight for display having an optical film with first and second prism structures disposed on opposing optical surfaces thereof, or backlight for a display having an optical film set with first and second prism structures disposed on opposing optical films

Applicant:

Radiant Opto-electronics Corporation, Kaohsiung, TW;

Inventors:

Wei-Hsuan Chen, Kaohsiung, TW;

Chung-Yung Tai, Kaohsiung, TW;

Chun-Yi Wu, Kaohsiung, TW;

Assignee:

Radiant Opto-Electronics Corporation, Kaohsiung, TW;

Attorney:

CKC & Partners Co., LLC

Primary Examiner:

Robert J May

Int. Cl.

CPC ...

F21V 8/00 (2006.01); G02B 5/02 (2006.01);

U.S. Cl.

CPC ...

G02B 6/0053 (2013.01); G02B 5/0205 (2013.01); G02B 5/0278 (2013.01);

Abstract

An optical film, an optical film set, a backlight module and a display device are provided. The optical film includes a main body, plural first prism structures and plural second prism structures. The main body has a first optical surface and a second optical surface. The first prism structures are disposed on the first optical surface. Each of the first prism structures extends along a first direction. The second prism structures are disposed on the second optical surface. Each of the second prism structures extends along a second direction. The first direction is different from the second direction.

Find Patent Forward Citations