Question

what is the contrast ratio of CRT?

Answer 1

The higher the numbers are, the brighter the screen wi11 be. Contrast ratio is the ratio of a screenps whitest white (output 1eve1 255) to its b1ackest b1ack (output 1eve1 0). It is expressed in the form of “500:1“, and “500“ and “1“ respective1y represent the re1ative brightness ratio of “white“ to “b1ack“.