There are several types of monitors and displays available in the market. Some of the most common ones are:

1. LCD (Liquid Crystal Display) Monitor: LCD monitors are the most popular type of display used in modern computers. They use a layer of liquid crystal material to produce images, and can be either backlit by CCFLs (Cold Cathode Fluorescent Lamps) or LED (Light Emitting Diodes).

2. LED (Light Emitting Diode) Monitor: LED monitors are a type of LCD monitor that uses LED backlighting instead of CCFLs. They are more energy-efficient and produce brighter, clearer images.

3. OLED (Organic Light Emitting Diode) Monitor: OLED monitors use organic compounds that emit light when an electric current is applied. They produce better colors and contrast than LCD monitors, but can suffer from image retention and burn-in issues.

4. CRT (Cathode Ray Tube) Monitor: CRT monitors were the standard type of display used in computers until the early 2000s. They use an electron beam to produce images on a phosphorescent screen. They are bulky, heavy, and consume a lot of energy.

5. Plasma Display: Plasma displays use small cells filled with a mixture of noble gases to produce images. They are used primarily in large, high-end displays such as televisions and commercial displays.

6. Touchscreen Monitor: A touchscreen monitor is a display that can detect touch input from a user. They can be either LCD or LED and are used in a variety of devices, including smartphones, tablets, and kiosks.

7. Curved Monitor: A curved monitor is a display with a slightly curved screen that is designed to provide a more immersive viewing experience. They are primarily used for gaming and entertainment purposes.

8. Projector: A projector is a device that projects an image onto a screen or wall. They can be either DLP (Digital Light Processing) or LCD and are used primarily for presentations and home theater systems.