Portable information equipment

Abstract

A portable information equipment has a main body portion and a display portion hinged each other. A space is secured in the display portion by using a cabinet for a reflection type liquid crystal display which requires no backlight instead of a liquid crystal display with backlight. The space is used for an additional internal battery. The additional internal battery increases an electric capacity to extend an operation time of the portable information equipment and need no externally attached extension battery.

What is claimed is:  
     
         1 . A portable information equipment having a main body portion and a display portion foldably connected so as to be opened and closed, the display portion comprising: 
 a cabinet defining an outline of the display portion;    a display unit requiring no backlight unit and housed in the cabinet; and    a platy internal battery housed in a space defined between the cabinet and the display unit.    
     
     
         2 . The portable information equipment as set forth in  claim 1 , wherein 
 the space is on a back side of the display unit in the cabinet.    
     
     
         3 . The portable information equipment as set forth in  claim 1 , wherein 
 the display unit is a reflection type liquid crystal display.    
     
     
         4 . The portable information equipment as set forth in  claim 1 , wherein 
 the platy internal battery is a lithium polymer battery.    
     
     
         5 . The portable information equipment as set forth in  claim 1 , the display portion further comprising: 
 a battery control board provided within the cabinet; and    a flat cable by which the battery control board is connected to the internal battery.    
     
     
         6 . The portable information equipment as set forth in  claim 5 , wherein 
 the flat cable is a flexible flat cable or a flexible printed circuit.    
     
     
         7 . The portable information equipment as set forth in  claim 1 , the display portion further comprising: 
 a power supply cable for supplying electric power from the internal battery to the main body portion.    
     
     
         8 . The portable information equipment as set forth in  claim 7 , wherein 
 the power supply cable includes at least two independent electric wires in a bundle.