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:
May. 20, 2025
Filed:
Oct. 06, 2020
Hitachi-lg Data Storage, Inc., Tokyo, JP;
Ryuji Ukai, Tokyo, JP;
Takahiro Mouri, Tokyo, JP;
Takeru Utsugi, Tokyo, JP;
Toshiteru Nakamura, Tokyo, JP;
Takuma Kuno, Tokyo, JP;
Masahito Uchiyama, Tokyo, JP;
HITACHI-LG DATA STORAGE, INC., Tokyo, JP;
Abstract
According to the invention, a light guide plate-type video display device and a video display system that are capable of displaying a video with less color deviation and less video distortion are provided. A video display deviceconfigured to display a video includes a video projection unitconfigured to project video light, a video deflection unit, and a light guide portion. The video deflection unitdeflects video light emitted by the video projection unitand causes the video light to propagate to the light guide portion, and the light guide portioncauses the entered video light to propagate therein and outputs the video light. Here, the video deflection unitor the light guide portionis configured to reduce color dispersion of the video light outputted from the light guide portion