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.

Date of Patent:
Sep. 30, 2025

Filed:

May. 09, 2024
Applicant:

Magnolia White Corporation, Tokyo, JP;

Inventor:

Takashi Ota, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133621 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01); G02B 6/0076 (2013.01); G02B 6/0091 (2013.01); G02F 1/133615 (2013.01);
Abstract

A display device includes: point light sources emitting light of different colors; light guides each of which includes an end face facing a corresponding one of the point light sources, a first surface connected to the end face, and a second surface diagonally facing the end face and the first surface, the light being incident on the end face and undergoing internal reflection, between the first and second surfaces, and linear pattern emission from the first surface; and a display panel including a side surface that faces the first surface and on which the light is incident, front and back surfaces, and a converter that changes a traveling direction of the light, for each pixel of the image, propagating away from the side surface internally between the front and back surfaces, to a direction toward the display surface.


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