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:
Jan. 19, 2021
Filed:
Mar. 17, 2017
Sharp Kabushiki Kaisha, Sakai, JP;
Naru Usukura, Sakai, JP;
Hiromi Katoh, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A liquid crystal display deviceincludes a liquid crystal panel, a backlight devicesupplying light to the liquid crystal panel, LEDsincluded in the backlight device, a light guide platethat is an optical member and included in the backlight deviceand disposed opposite the liquid crystal paneland has a light guide plate light exit surfacethrough which light from the LEDsexits toward the liquid crystal panel, and a light guide plate side light collecting portionincluded in the light guide plate, which is the optical member, and applying an anisotropic refracting action to at least light rays exiting an edge portion of the light guide plate light exit surfaceto be directed to a middle section of the liquid crystal panel