Infrared technology plays a crucial role in how TV remote controls communicate with televisions. When you press a button on your remote control, it sends a signal to your TV using infrared light. Inside the remote control, there's an infrared LED (Light Emitting Diode) that emits infrared light when activated. This light is not visible to the human eye, but it carries information in the form of pulses.

The pulses of infrared light travel from the remote control to a receiver located on the TV. This receiver, typically located on the front panel of the TV, picks up the pulses of light and decodes them into commands that the TV can understand. Each button on the remote control corresponds to a specific pattern of pulses, which tells the TV what action to take, such as changing the channel or adjusting the volume.

Infrared technology works on the principle that electronic devices can send and receive data using infrared light waves. This technology is reliable for TV remote controls because it doesn't require a direct line of sight between the remote and the TV; instead, it bounces off walls and surfaces. Understanding how infrared technology functions in TV remotes helps us appreciate the seamless communication between the remote control and the TV, making it a convenient and efficient way to interact with our entertainment devices.