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:
Nov. 28, 2023
Filed:
Jun. 30, 2022
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A backlight module includes a light guide plate, a light source, a first optical film, and a second optical film. The light source is disposed on one side of a light incident surface of the light guide plate. The first optical film is disposed between the light guide plate and the second optical film. An illumination beam from the light source has a first polarization component and a second polarization component perpendicular to the first polarization component. A ratio of the first polarization component to the second polarization component is greater than or equal to 1.2 and less than or equal to 10. The second optical film includes a substrate and a plurality of prism structures disposed between the substrate and the light guide plate. An included angle between an extending direction of the prism structures and the light incident surface is less than 5 degrees.