There are basically 5 components of a LED TV, and all of them are discussed below.
1. Supply Board/SMPS Board
As the name suggests, this board is the powerhouse of the television. The power cable is connected to this component of the TV. The AC power this board receives from the socket is converted to DC with the help of the switching regulator, and that is because LED TVs run on DC power. And then that converted DC power is transferred to the Logic/Motherboard.
2. Logic/Main/Mother Board
Now, this board is basically the brain of your TV, as it does all the heavy lifting. The HDMI, i.e. the audio and video ports and the RAM is connected to this board. And this is where the input received from the cable or the set-top box is decoded and then amplified to finally get the output on the screen. In other words, this board converts the analog audio and video signals into digital signals to show you the result on the screen. And that is why this is the most important and expensive component of the TV.
3. Infrared Rays(IR) Reciever
The infrared receiver has one basic function, which is to catch the IR signals you are sending from your TV remote, like changing the channel or turning the volume up. After catching the signals, the IR receiver converts them into digital signals to give the respective command to the Logic Board.
4. LED Screen
The LED screen is that part of the TV that most of us are familiar with. But what we are not familiar with is the structure of the screen. Basically, the structure of a LED Screen consists of the following components:
a. Metal Frame: Now, this is quite basic, the metal frame as the name suggests, is the frame, or the outer covering of the main screen. The size of the metal frame depends on the size of the TV screen. The material and color of the frame may vary with different TVs.
b. LED Panel: The LED panel is the main screen of your TV, where the image is displayed. The structure if the LED panel depends on the type of LED TV you are using.
- Edge-Lit LEDs: Edge-Lit LEDs usually have a line of LED lights spread around the corner of the LED panel. The LED produces the light which is evenly distributed throughout the screen through the diffusion panel, which is basically a layer of white sheets.
- Direct LEDs Full Array: In full-array LED TVs, the LED lights are systematically distributed at the back of the screen. Now, these lights are independently controlled, resulting in better contrast ratio and more clear picture quality.
5. Power Adapter
A TV power adapter, very similarly like a laptop’s power adapter adjusts the voltage coming from the power source according to the device. This makes sure that a fluctuation in the voltage doesn’t damage or overheat your device.