Why You Might Not Want to Use a TV as a Monitor
There are reasons that most people use monitors as gaming monitor, and TVs and TVs, and why they're sold as such: because they're designed with different content and viewing distances in mind.
Pixels Quality
TVs are typically larger than their monitor counterparts at the same resolution because you're expected to sit six-feet or more away from the screen. Unless you're talking about smaller 4K displays or some of the new-generation 8K TVs, then sitting at the typical monitor distance of two to three feet, means that you're much more likely to be impacted by the screen door effect-something VR users are all too familiar with.
If you're sitting at a normal TV distance, this isn't a problem.
Response Time, Refresh Rate, And Input Lag
If you are planning to use your TV connected PC for gaming, there is another factor to consider about resolution and its speed. Most TVs not designed for high speed gaming, so may only support refresh rate of 60Hz or even 30Hz (if limited by older connector standards).can make for substandard gaming experience especially if you are using to playing at higher refresh and frame rates games in gaming monitor.
TVs that aren't designed for gaming tend to also have quite slow response times – the time it takes for a pixel to change color. Anything over 5ms can lead to ghosting of images, making for a worse visual experience.
High refresh rates and response times
in conjunction, also lead to high input lag: that's the time it takes for your input to register on the screen. That can be problematic in high-paced games, and truly inhibiting in competitive ones. If you're planning to play head to head multiplayer games, a low input lag can make a real difference and may mean avoiding using older TVs as monitors altogether.
Newer TVs quite often include a "game mode," however, which can alleviate these issues, or have high refresh rates and low response times as part of their specifications to better support gamers. Check your manual to find out what your TV is capable of and how it might impact gaming.
Colors Compression
Depending on the TV and the connector you use to link it to your PC, there's also the chance that it will use some form of color compression to save bandwidth and processing. Where in ideal circumstances your TV will use 4:4:4 color subsampling, compression that leads to a 4:2:2, or even 4:2:0, can make an image look considerably worse.
Check if your TV can offer 4:4:4 at your desired resolution before deciding if it's the right TV for your PC.
