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:
Aug. 04, 2020
Filed:
Oct. 11, 2017
Toray Industries, Inc., Tokyo, JP;
Takayuki Uto, Otsu, JP;
Wataru Gouda, Otsu, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
A light source unit is provided which makes an excellent contrast between the black display portions and the white display portions if mounted on a display, while having a high frontal luminance. The light source unit includes: a light source; a color conversion material that converts incident light from the light source into light having a longer wavelength than the incident light; and a reflective film that exists between the light source and the color conversion material and that transmits light from the light source incident perpendicularly on the film surface and reflects light from the color conversion material incident perpendicularly on the film surface; wherein the P-Polarized light of the light incident from the light source on the reflective film surface at an angle of 20°, 40°, and 60° is reflected at a reflectance of R20(%), R40(%), and R60(%) respectively, which satisfy R20<R40<R60.