| Display Test System 
      Configuration: | 
  
    | Video Card: | ATI Radeon 64 DDR | 
  
    | Operating System: | Windows 98 SE | 
  
    | Display Settings: | Color Temp: 
      6500 Kelvin Resolution: 1600x1200 
  pixels
 Frequency: 85Hz
 Colour: 32 Bit
 | 
 
        
 
 
Geometry: 
Excellent geometry, the CM828 showed no visible distortion of any of 
the test grids.      
                 
          
 
Brightness / 
Contrast: Brightness was excellent under 32bit colour. Under 16-bit 
colour the range of black shades was not represented as well as the previous 
setting was able to. Contrast was excellent, the whites were displayed brightly 
and the blacks were vividly absent of luminosity.             
              
  
High Voltage: 
The horizontal trace lines remained stable during the three-bar test 
while the vertical trace lines flexed ever so slightly. Overall the dampening 
control is quite good.  
             
              
  
Colours: For some reason, the colour red always 
seems to me to be a bit under represented by Hitachi displays, while green and 
blue are always very vibrant. Perhaps it is the dark tint on 
the display that seems to mute red ever so slightly. Anyhow, it is by 
no means a handicap. Also, the glass of the display causes the outer edges of 
the display to be a bit darker than the center, so brightness distribution is not completely 
equal.   
             
               
           
Convergence:  The convergence test displays a 
range of coloured grids (white, purple, yellow, aqua and RGB) to test the 
convergence of the three component colours which form the basis for all displays 
- red, green and blue. We noticed a slight loss of convergence at the bottom 
edge of the screen, but to a very minor degree. Overall the display showed 
excellent characteristics in this regard.  
                
               
                  
             
  
Focus: Very good focus, especially in the 
horizontal axis. The closely spaced parallel vertical lines showed slight 
blending, which is more pronounced at the outside corners where they almost seem 
to blend into one line at the 1600x1200 resolution. Still, the CM828 exhibited 
much focus than the CM810 did.        
            
            
          
Resolution: 
Very good - horizontal lines were all sharp and distortion free. 
Vertical lines were also very good, though once again the closely spaced single 
pixel separated lines appear to blend in together some what, especially at the 
outside edges.  
            
            
          
Moire:  Solid grey -excellent. Light 
Grey - excellent. Vertical 1 pixel lines - very good, only slight herring bone 
pattern on the outside 1/4 edge of screen. Horizontal 1 pixel lines - excellent. 
Two pixel square pattern - excellent. One pixel square pattern - 
excellent.   
               
                  
              
  
Readability: 
Readability is just about as good at the center as it is at the outside 
edges, ranking overall as very good.       
         
              
 
Jitter: 
None visible at 
all. 
Display Resolutions:      
          The Hitachi CM828 supports a very broad range 
of resolutions. The full list of manufacture supported resolutions and frequencies are 
listed below: 
  | Display Resolutions: | 
|---|
  
    | Resolution | Freq Hor. | Freq Ver. | Standard | 
  
    | 640x480 | 31.5kHz | 70Hz | VGA | 
  
    | 800x600 | 53.7kHz | 85Hz | VESA | 
  
    | 1024x768 | 68.7kHz | 85Hz | VESA | 
  
    | 1152x870 | 68.9kHz | 75Hz | MAC | 
	  
    | 1280x1024 | 91.1kHz | 85Hz | XGA | 
	  
    | 1600x1200 | 106.25kHz | 85Hz | XGA | 
	  
    | 1600x1200 | 112.0kHz | 90Hz | XGA | 
	
    | 1920x1440 | 112.5kHz | 75Hz | VESA | 
	  
    | 2048x1536 | 113.64kHz | 71Hz | - |