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2007-07-06 10:21:27 · 7 answers · asked by ratan k 1 in Computers & Internet Hardware Monitors

7 answers

Everything a computer interprets, whether it be text, pictures, colors...etc. is done with 1's and 0's. A computer only understands the binary language.

2007-07-06 10:24:50 · answer #1 · answered by Anonymous · 0 0

It varies between LCD, Tube and Plasma.

In an LCD the color is a filter. There are three filters that make up each pixel. These are red, green and blue. When all are on and equal the color is gray to white depending on how bright it is. A back-light is on all the time. The LCD modulates the amount of light getting past to the filter.

In a tube there is an atomic particle accelerator inside a vacuum. The electrons come from a gun, hot or cold cathode and are sped toward the screen. The gun is writing one line at a time. After a line is written it begins to fade so the lines are re-written. Some times 60 times a second all the lines are written. On the screen the electron collide with the screen which has phosphor that emits light. There are three phosphors and these emit three colors, red, green and blue. Sometimes an X-Ray is created that is stopped by lead-glass most of the time. The guns pulses electrons at the spots of phosphor. Very precise operation.

Plasma has three cells that make up a pixel. Each cell is red, green or blue. Inside each cell is a gas-filled dot. When an electrical charge is put across the cell the gas ionizes and emits light. Either the gas emits a color or light such as argon or neon, or there is a filter --I am not sure which. There is no back-light because the tiny cell makes light

2007-07-06 17:36:18 · answer #2 · answered by Ron H 6 · 0 0

Aside from the fact that colors are sent to the display in 0's and 1's if you're referring to an LCD display here's how it works:

You have a very this LCD (liquid crystal display) panel which houses thousands to millions of pixels. A pixel can be either red, green, or blue. A pixel can be on, when light shines through it, or off, when it's black (no light allowed through.) Most LCD's contain 1 red, blue and green pixel together so when they talk about resolution, such as 1024 x 768, that's 786,432 pixels, but actually 2,359,296 individual pixels if you count red, green, and blue.

The light that shines through this thin maxtrix of pixels is usually fluorescent light, similar to what you would find in an office. By turning on various combinations of the primary colored pixels, and image is displayed and your eye just blends them together to make up the picture. That's why the higher resolution, the better the picture, because there's less gaps for your eye to fill in.

Hope this helps explain it better.

2007-07-06 17:38:58 · answer #3 · answered by Dave 3 · 0 0

By mixing various amounts of red green and blue.

All monitors have ways to produce red, green or blue light. CRTs and plasma displays use phosphors that are doped to produce coloured light, LCDs us a bright white backlight that then passes through red green and blue filters. The monitor then varies the amount of light. CRTs and plasma by altering the number of electrons hitting the phosphor by controlling the current, LCDs by using the polarization effects of liquid crystal material to allow more or less light though the filters.

The separate red green and blue dots are close enough together that the human eye, looking from a reasonable distance sees the combination of the colours rather than the individual dots.

In the computer colours are generated by setting different amounts of red green and blue. For example 24 bit colour gives 8 bits for red, 8 for green and 8 for blue. giving over 16 million combinations.

2007-07-06 17:32:53 · answer #4 · answered by Simon T 6 · 2 0

Digitally control colour spectrum RGB (red/green/blue, elementals in lights and photonic colouring) usually 8-bit in one spectrum for a total of 24-bit.

2007-07-06 17:30:14 · answer #5 · answered by Andy T 7 · 0 0

a series of 1 and 0's represent different colors that a previous person/team programmed in.

2007-07-06 17:23:27 · answer #6 · answered by Chester 1 · 1 0

i think they are read as numbers (digit al, get it?)

2007-07-06 17:23:39 · answer #7 · answered by Anonymous · 0 0

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