Portable computer system incorporating a rear projection display

Abstract

A portable computer system incorporating a rear projection display. The rear projection display is housed in a display enclosure that is movable between an open and closed position, and incorporates either a pliable or deformable projection surface or a projection surface formed of multiple rigid components. When the display enclosure is open, the projection surface is configured to expand beyond the form factor dimensions of the base portion of the portable computer. In the preferred embodiment of the invention, the projection surface is a pliable material that can be safely deformed or collapsed within the display enclosure when it is closed. The rear projection display thereby allows the effective viewing area of a portable computer display to be increased without negatively impacting the form factor dimensions or weight of the portable computer.

1 . A portable computer system, comprising: 
 a base portion having a top surface; and    a projection display coupled to the base portion and movable between an open position and a closed position with respect to the base portion, the projection display comprising: 
 an image generator for generating images;  
 a projection surface for displaying images generated by the image generator; and  
 an optical system disposed between the image generator and the projection surface, the optical system configured to discernably focus images generated by the image generator onto the projection surface.  
   
     
     
         2 . The portable computer system of    claim 1   , wherein the projection surface is formed of a pliable material, the pliable material capable of being expanded to have a surface area greater than the display area of the image generator when the projection display is in an open position.  
     
     
         3 . The portable computer system of    claim 1   , wherein the projection surface is formed of a plurality of rigid panels.  
     
     
         4 . The portable computer system of    claim 3   , wherein the rigid panels comprise a main display panel and two ancilliary display panels, the two ancilliary display panels coupled to the main display panel and movable with respect to the main display panel between a folded position and a substantially coplanar position.  
     
     
         5 . The portable computer system of    claim 4   , further comprising: 
 a display enclosure, the image generator and optical system being integral with or rigidly coupled to the display enclosure; and    resilient attachment members, wherein the projection surface is attached to the display enclosure via the resilient attachment members.    
     
     
         6 . The portable computer system of    claim 5   , further comprising: 
 a display enclosure, the image generator and optical system being integral with or rigidly coupled to the display enclosure; and    hinged attachment members, wherein the projection surface is attached to the display enclosure via the hinged attachment members.    
     
     
         7 . The portable computer system of    claim 1   , further comprising means for collapsing the projection surface when the projection display is moved to a closed position.  
     
     
         8 . The portable computer system of    claim 7   , wherein the means for collapsing the projection surface comprise retractable hooking members.  
     
     
         9 . The portable computer system of    claim 7   , wherein the means for collapsing the projection surface comprise a roller assembly.  
     
     
         10 . The portable computer system of    claim 1   , further comprising a polarizing filter disposed between the image generator and the projection surface.  
     
     
         11 . The portable computer system of    claim 1   , wherein the image generator is a field emission display.  
     
     
         12 . The portable computer system of    claim 1   , wherein the image generator is a liquid crystal display.  
     
     
         13 . The portable computer system of    claim 1   , wherein the optical system is a convex lens.  
     
     
         14 . A projection display for attachment to a base portion of a portable computer system, the projection display comprising: 
 an image generator for generating images;    a projection surface for displaying images generated by the image generator; and    an optical system disposed between the image generator and the projection surface, the optical system configured to discernably focus images generated by the image generator onto the projection surface.    
     
     
         15 . The projection display of    claim 14   , wherein the projection surface is formed of a pliable material, the pliable material, when taut, having a surface area greater than the display area of the image generator.  
     
     
         16 . The projection display of    claim 14   , wherein the projection surface is formed of a plurality of rigid panels.  
     
     
         17 . The projection display of    claim 16   , wherein the rigid panels comprise a main display panel and two ancilliary display panels, the two ancilliary display panels coupled to the main display panel and movable with respect to the main display panel between a folded position and a substantially coplanar position.  
     
     
         18 . The projection display of    claim 14   , wherein the image generator is a field emission display.  
     
     
         19 . The projection display of    claim 14   , wherein the image generator is a liquid crystal display.  
     
     
         20 . The projection display of    claim 14   , wherein the optical system is a convex lens.