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. 02, 2021
Filed:
Sep. 23, 2016
Sharp Kabushiki Kaisha, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A backlight unit includes LEDs, a light guide plate, a wavelength converter, and an LED controller. The LEDs include end-side LEDs arranged at ends in the direction of arrangement and a center LED arranged at the center in the direction of arrangement. The light guide plate includes a light entering end surface and a light exiting plate surface. The light entering end surface extends along the direction of arrangement. The wavelength converter extends along the direction of arrangement and is interposed among the LEDs and the light entering end surface. The wavelength converter includes a phosphor configured to wavelength-convert the light from the LEDs. The LED controller is configured to control the amount of light emitted by each LED per unit time such that the amount of light emitted by at least one of the end-side LEDs than the amount of light emitted by the center LED.