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:
Sep. 19, 2006
Filed:
Oct. 02, 2002
Applicant:
Seog-geun Lee, Kumi-shi, KR;
Inventor:
Seog-Geun Lee, Kumi-shi, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01); H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A portable terminal device, which employs a display unit utilizing a holographic screen, a main housing, a holographic screen, and an optical system. The holographic screen is disposed at a predetermined portion of the main housing while being exposed to an exterior of the main housing. The holographic screen optically displays information by means of image-light which is projected to the holographic screen. The optical system is spaced apart from the holographic screen and provides the holographic screen with the image-light.