The total number of pixels will help you determine the overall quality of your image. To calculate:
- Understand the “Pixel Pitch”: Millimeter measurement from center to center of pixel. The lower the number the higher the image sharpness and the closer one can get to the screen before the image “pixelizes.” Ex: 4mm, 6mm, 10mm, etc.
- Count height (column) and width (row) in PIXELS
- Resolution is determined by multiplying height of pixels x width of pixels
- Total number of pixels is H x W = T (100 x 100 = 10,000 pixels). Ex: 1524 x 762 - 1,161,288 Pixels
Note: High Definition requires a minimum resolution of 1280 x 720 pixels (921,600 total pixels)
The total number of lamps is determined by multiplying total number of pixels x lamps per pixel. Always verify with the manufacturer how many ACTUAL lamps you are purchasing. This is the critical identifier that you are getting the most for your money.
3 Lamps per Pixel
4 Lamps per Pixel
3 Lamps per Pixel
3 Lamps per Pixel
The brand of lamp provides confidence you are getting a good product for color and long life. The following are popular brands at each tier.
There are many low
grade LED Lamp
Manufacturers
Note: Initially, a low-grade LED may appear brighter if the lamp is over driven with higher current. However, the higher the current causes the LED to burn up more quickly to significantly shorten the life of the lamp.
- Refresh Rate: Number of times the display is refreshed per second. LED Display range varies between 240 to 4000.
- Brightness: LED display light output is measured in NITS. A NIT is a standard measurement of light output. The LED display NITS must exceed the environmental NITS for the display to be seen.
- HDTV = 500-700 nits, Indoor LED Display = 1,500 nits, Cloudy Day Sunlight = 3,000 nits, Blue Sky Sunlight = 5,000 nits, Outdoor LED Display = 6,000 nits
- Video Frame Rate: Number of times the image is “projected” per second
- Viewing Angle: