A computer monitor displays images by dividing the screen into a grid of tiny pixels. Each pixel is a square that can be assigned a specific color. The monitor then uses a light source to illuminate each pixel in the grid to create the image on the screen.

• Most modern computer monitors use a technology called liquid crystal display (LCD). LCD monitors work by using a liquid crystal layer to control the amount of light that passes through each pixel. The liquid crystals are arranged between two polarizing filters, and when an electric current is applied to a crystal, it rotates, which allows more or less light to pass through.
• To display an image, the computer sends a signal to the monitor that tells it which pixels to illuminate and how brightly to illuminate them. The monitor then uses the liquid crystal layer to control the amount of light that passes through each pixel, and the image is displayed on the screen.

Here is a simplified explanation of how an LCD monitor works:

1. The computer sends a signal to the monitor that tells it which pixels to illuminate and how brightly to illuminate them.
2. The monitor uses the liquid crystal layer to control the amount of light that passes through each pixel.
3. The light source illuminates the liquid crystal layer.
4. The light passes through the polarizing filters and is displayed on the screen.

The number of pixels on a monitor is determined by its resolution. The resolution is measured in pixels per inch (PPI), and the higher the resolution, the more pixels there are per inch and the sharper the image will be.

Most modern computer monitors have a resolution of at least 1920x1080 pixels, which is also known as Full HD. Some monitors have even higher resolutions, such as 2560x1440 pixels (2K) or 3840x2160 pixels (4K).

In addition to resolution, there are a number of other factors that can affect the quality of the image on a monitor, such as:

• Contrast ratio: The contrast ratio is the difference between the brightest and darkest colors that the monitor can display. A higher contrast ratio will result in a sharper and more realistic image.
• Viewing angle: The viewing angle is the angle at which you can still see the image clearly on the screen. A wider viewing angle will allow you to see the image clearly from a wider range of angles.
• Response time: The response time is the amount of time it takes for a pixel to change from one color to another. A lower response time will result in smoother and less blurry images, especially when watching videos or playing games.