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:
Nov. 29, 2005
Filed:
Nov. 26, 2002
Eiki Niida, Kariya, JP;
Fumikazu Isogai, Kariya, JP;
Yasuya Mita, Kariya, JP;
Norihito Takeuchi, Kariya, JP;
Eiki Niida, Kariya, JP;
Fumikazu Isogai, Kariya, JP;
Yasuya Mita, Kariya, JP;
Norihito Takeuchi, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Abstract
A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an exit plate facing the display portion, and a reflection-exit plane opposite to the exit plane. The reflection-exit plane has a first end intersecting an incidence plane and a second end intersecting an opposite end plane. An inclination angle, defined by the exit plane and a line that contains the first end and the second end, is greater than 0.20° and less than 0.75°. The reflection-exit plane includes a light admission portion that reflects light entering through or reflected on the incidence plane to the exit plane.