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 9019448 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 28, 2015

Filed:

Jan. 28, 2011
Applicants:

Moon-gyu Han, Yongin-si, KR;

Hong-seok Lee, Seongnam-si, KR;

Chang-gyun Shin, Anyang-si, KR;

Inventors:

Moon-gyu Han, Yongin-si, KR;

Hong-seok Lee, Seongnam-si, KR;

Chang-gyun Shin, Anyang-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133621 (2013.01); G02B 6/005 (2013.01); G02F 2202/32 (2013.01);
Abstract

A display apparatus includes a light guide plate to emit light that enters through a side surface of the light guide plate through an upper surface of the light guide plate, a light source arranged on at least one side of the light guide plate, a reflection plate arranged under the light guide plate, a color filter layer arranged above the light guide plate, and an optical shutter arranged above the color filter layer to transmit or block at least a part of light according to electric control, wherein the color filter layer includes a transmission type color filter to transmit light in a particular wavelength band and reflect light in other wavelength bands.


Find Patent Forward Citations

Han, Moon-gyu. (2015). Display apparatus having improved outdoor visibility (U.S. Patent No. 9019448). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9019448

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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