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Samsung SyncMaster 170T TFT Display

Samsung SyncMaster 170T TFT Display - PCSTATS
Abstract: For those of you who have lay awake at night dreaming of a flat screen in place of that bulky cube of a CRT display this may be the monitor for you.
 87% Rating:   
Filed under: Monitors Published:  Author: 
External Mfg. Website: Samsung Oct 30 2001   Max Page  
Home > Reviews > Monitors > Samsung 170T

TFT Display Evaluation

Resolution Settings

Resolution setting on a flat panel LCD display are always slightly different than that of their CRT relatives. With an LCD display, it is always best to operate it at the maximum resolution - in this case at a resolution of 1280x1024 pixels. With the computer set at this resolution there is no dithering effect on the image because each dot in the TFT panel accurately corresponds to the resolution setting. The full list of supported resolutions and frequencies are listed below:

Display Resolutions:
Resolution Freq Hor. Freq Ver. Pixel Clock Standard
720x400 31.5kHz 70Hz 28.3MHz VGA
640x480 31.5kHz 60Hz 25.2MHz VGA
640x480 37.5kHz 75Hz 31.5MHz VGA
640x480 43.3kHz 85Hz 36.0MHz VGA
800x600 53.7kHz 85Hz 56.3Mhz SVGA
800x600 46.9kHz 75Hz 49.5MHz SVGA
1024x768 48.4kHz 60Hz 65.0MHz XGA
1024x768 68.7kHz 85Hz 94.5MHz XGA
1024x768 60.0kHz 75Hz 78.8MHz XGA
1280x1024 63.9kHz 60Hz 108.0MHz SXGA
1280x1024 80.0kHz 75Hz 135.0MHz SXGA

PCstats TFT Display Evaluation Criteria:

We evaluate the quality of the TFT display with the help of a program called Nokia Monitor Test. The software application displays a range of colours and test patterns that can help diagnose just about any visual problems or defects a TFT display may contain. It can also be a very useful tool for properly adjusting a display to the correct settings. The software consists of eleven tests which can be run in steps as adjustments are made to the OSD. As the tests are run we look for the following problems, only one of which should be inoperable (broken pixel).

  • Broken Pixels: What we class as a 'broken pixel' can fall under any one of the following circumstances: Pixel always on (any colour), pixel always off, pixel unable to display a shade (red, green, blue, black, white), pixel shown colour gradient.
  • Pixel Clock: If the number of dot clocks within one horizontal synch are not properly configured the screen will appear to drift or vertical stripes may be generated. This should be correctable by the on screen menu.
  • Phase: If the phase of the display data and dot clock are not correctly tuned the screen can flicker, or text be displayed blurry. For example text may appear dithered, or when looking at a test pattern of a one-pixel black, one-pixel white checkerboard pattern the pattern may be distorted. This should be correctable by the on screen menu.
  • Response Time: We look for any streaking associated with moving a full page of text up or down quickly. Displays with slower refresh rates tend to show some degree of image streaking or text discoloration which can be distracting.
  • Stand Stability: TFT displays are fragile components and the stand should offer adequately stable support as well as be easily adjustable.

    We deduct marks for quality control if there are any predominant broken pixels in a display. While many manufacturers may consider a few broken pixels acceptable, we believe the high cost of TFT displays should translate into a clear and unblemished image.

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    Contents of Article: Samsung 170T
     Pg 1.  Samsung SyncMaster 170T TFT Display
     Pg 2.  A good looking display
     Pg 3.  SyncMaster 170T OSD
     Pg 4.  — TFT Display Evaluation
     Pg 5.  Evaluation Results & Conclusion

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