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. 13, 2019
Filed:
Jan. 24, 2017
Samsung Electronics Co., Ltd., Suwon-si, KR;
Jaeseung Chung, Suwon-si, KR;
Bongsu Shin, Seoul, KR;
Joonyong Park, Suwon-si, KR;
Sunghoon Lee, Seoul, KR;
Dongouk Kim, Pyeongtaek-si, KR;
Hyunjoon Kim, Seoul, KR;
Jihyun Bae, Seoul, KR;
Dongsik Shim, Hwaseong-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A directional backlight unit and a three-dimensional (3D) image display device including the directional backlight unit are provided. The directional backlight unit includes: a light guide plate, a light source configured to irradiate an incident surface of the light guide plate with a plurality of color lights, and a grating that includes a sub-grating configured to react to all of the plurality of color lights. The directional backlight unit may further include a color filter that corresponds to a plurality of color lights emitted from each sub-grating.