66Specifications66 Specifications Horizontal FrequencyThe time required to scan a single line from the left to the right side of the screen is called ahorizontal cycle. The reciprocal number of a horizontal cycle is called horizontal frequency.Horizontal frequency is measured in kHz. Vertical FrequencyRepeating the same picture dozens of times per second allows you to view natural pictures. Therepeat frequency is called "vertical frequency" or "refresh rate" and is indicated in Hz.VESA, 1440 x 900 55.935 59.887 106.500 -/+VESA, 1600 x 900RB 60.000 60.000 108.000 +/+VESA, 1680 x 1050 65.290 59.954 146.250 -/+VESA, 1920 x 1080 67.500 60.000 148.500 +/+ResolutionHorizontalFrequency(kHz)VerticalFrequency (Hz)Pixel Clock(MHz)Sync Polarity(H/V)