Portable computer having an LCD projection display system
US5510806A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1995 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Jun 19, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/905
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.