How Does a Monitor Create an Image?

A simple explanation of how a monitor create an image?

How Does a Computer Create an Image?

The computer and GPU create a digital frame containing pixel color information. A display connection sends this information to the monitor.

What Is a Pixel?

A pixel is a small picture element. A color display normally uses red, green and blue subpixels with different brightness levels to create many colors.

How Does an LCD Monitor Work?

An LCD uses a backlight and liquid-crystal elements to control how much light passes through each pixel.

What Is Refresh Rate?

Refresh rate is the number of times per second that a display can present a new frame. It is measured in hertz, or Hz.

What Is Resolution?

Resolution is the number of pixels across and down the display. For example, 1920×1080 means 1920 pixels wide and 1080 pixels high.

Quick Takeaway

The main idea is simple: the device receives information, processes it using its hardware and controller or processor, and then stores, sends or displays the result. The exact details depend on the technology.

FAQ

Is this technology difficult to understand?

No. Once you understand the main parts and the flow of data, the basic working becomes much easier to follow.

Does real-world performance always match the specification?

Not always. Real performance can depend on the hardware, software, interface, workload and environment.