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:
Apr. 23, 1996
Filed:
Jun. 19, 1995
John P Busch, Austin, TX (US);
Dell USA, L.P., Austin, TX (US);
Abstract
A portable computer has a base housing portion to which a display screen structure is pivotally connected. The display screen structure is defined by a solid, relatively thin plastic screen panel instead of the usual lid/display screen housing having mounted therein an LCD panel, a panel illumination system and associated display electronics. To form a selectively variable image on the screen panel a relatively small LCD projection structure is mounted on the top side of the base housing for pivotal movement relative thereto between an upwardly extending use orientation and a downwardly retracted storage and transport orientation. The LCD projection structure includes a lens housing having a lens disposed therein, a small LCD projection panel supported on an underside portion of the lens, and a high intensity light source supported beneath the LCD projection panel. During use of the computer, screen driver circuitry within the base housing is used to form a selectively variable image on the LCD panel, and the illumination source causes the image to be projected in magnified form onto the raised screen panel.