––Horizontal Frequency
The time required to scan a single line from the left to the right side of the screen is called a horizontal cycle.
The reciprocal number of a horizontal cycle is called horizontal frequency. Horizontal frequency is measured in kHz.
––Vertical Frequency
The product displays a single image multiple times per second (like a fluorescent light) to display what the viewer sees. The rate of a single image being displayed repeatedly per second is called vertical frequency or refresh rate. Vertical frequency is measured in Hz.
Resolution | Horizontal | Vertical | Pixel Clock | Sync Polarity |
|
| Frequency | Frequency | (MHz) | (H/V) | Supported |
| (kHz) | (Hz) |
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IBM/VESA, 640 x 480 | 31.469 | 59.940 | 25.175 | N / N | - |
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Mac, 640 x 480 | 35.000 | 66.667 | 30.240 | N / N | - |
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VESA, 640 x 480 | 37.861 | 72.809 | 31.500 | N / N | - |
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VESA, 640 x 480 | 37.500 | 75.000 | 31.500 | N / N | - |
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IBM, 720 x 400 | 31.469 | 70.087 | 28.322 | N / P | - |
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VESA, 800 x 600 | 35.156 | 56.250 | 36.000 | P / P | - |
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VESA, 800 x 600 | 37.879 | 60.317 | 40.000 | P / P | - |
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VESA, 800 x 600 | 48.077 | 72.188 | 50.000 | P / P | - |
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VESA, 800 x 600 | 46.875 | 75.000 | 49.500 | P / P | - |
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Mac, 832 x 624 | 49.726 | 74.551 | 57.284 | N / N | - |
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VESA, 1024 x 768 | 48.363 | 60.004 | 65.000 | N / N | O |
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VESA, 1024 x 768 | 56.476 | 70.069 | 75.000 | N / N | - |
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VESA, 1024 x 768 | 60.023 | 75.029 | 78.750 | P / P | - |
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VESA, 1152 x 864 | 67.500 | 75.000 | 108.000 | P / P | - |
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Mac, 1152 x 870 | 68.681 | 75.062 | 100.000 | N / N | - |
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VESA, 1280 x 720 | 45.000 | 60.000 | 74.250 | P / P | O |
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VESA, 1280 x 800 | 49.702 | 59.810 | 83.500 | N / P | - |
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VESA, 1280 x 1024 | 63.981 | 60.020 | 108.000 | P / P | O |
|
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|
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VESA, 1280 x 1024 | 79.976 | 75.025 | 135.000 | P / P | - |
95