HelloKitty_1 said:Homework Statement
Why is the length of time over which a phosphor emits light an imporant factor to consider when designing a television screen?
Homework Equations
The Attempt at a Solution
I have gone over the last three chapters in my textbook for the answer. I even drove to the library to try to get some more understanding of it.
A television screen produces images by using a series of pixels that are made up of three subpixels: red, green, and blue. These pixels are illuminated by an electron beam that scans across the screen, creating a pattern of light that forms an image.
The cathode ray tube (CRT) is a vacuum tube that is used to generate and control the electron beam in a television screen. It works by heating a cathode, which releases electrons that are then accelerated towards a phosphor-coated screen, creating an image.
A flat-screen television uses a different technology called liquid crystal display (LCD) or light-emitting diode (LED) to produce images. These screens do not use an electron beam, but instead, use liquid crystals or LED lights to create images.
A television screen displays color by using a combination of the three primary colors: red, green, and blue. These colors are mixed together in different intensities to create a wide range of colors that we see on the screen.
The image on a television screen is refreshed by displaying multiple frames per second. This is known as the refresh rate and is typically 60 frames per second for most modern televisions. This creates the illusion of a continuous image instead of a series of still frames.