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.:

US 7301699 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 27, 2007

Filed:

Jan. 28, 2005
Applicants:

Naohito Kanamori, Yokkaichi, JP;

Yayoi Hatanaka, Nagoya, JP;

Inventors:

Naohito Kanamori, Yokkaichi, JP;

Yayoi Hatanaka, Nagoya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

A display device includes a liquid crystal display (LCD) panel, a light emitting diode (LED), and a reflector. The reflector having the first, the second, and the third reflecting surfaces is arranged in the rear of an LCD screen of the LCD panel. The first reflecting surface is arranged parallel to the LCD screen. The light source is arranged between the LCD screen and the LED such that a main axis of light emitted from the LED is parallel to the LCD screen. The second reflecting surface is arranged such that the light is reflected off the second reflecting surface toward the LCD screen. The third reflecting surface is arranged such that the light is reflected off the third reflecting surface toward the first reflecting surface and transmitted to the LCD screen. With this configuration, the amount of the light is less likely to be reduced when the light passes through a light guiding member and the brightness of the LCD screen is increased. Moreover, distances between the first reflecting surface and the LCD screen are about the same in the entire LCD screen, and therefore the brightness of the LCD screen is uniformed.


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Kanamori, Naohito. (2007). Display device having reflecting member with multiple reflecting surfaces (U.S. Patent No. 7301699). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7301699

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