Explainer · Monitors
Using an OLED TV as a monitor: is a 42-inch LG C-series worth it?
A 42-inch OLED TV costs about the same as a 32-inch OLED monitor and adds a bigger screen, streaming apps, and a remote. The catches are size, no DisplayPort, and burn-in.
LG's 42-inch C-series OLED TVs have become popular PC monitors because they are 4K OLEDs with HDMI 2.1, VRR, and high refresh rates at prices close to 32-inch OLED monitors. The 42-inch C5 supports 4K at 144Hz, and the 2026 C6 is advertised at up to 165Hz.
OLED TV vs OLED monitor
| 42-inch OLED TV (LG C5 / C6) | 32-inch 4K OLED monitor | |
|---|---|---|
| Refresh | 144Hz (C5); up to 165Hz (C6) | 240Hz, many with a 480Hz mode |
| Inputs | HDMI 2.1 only | DisplayPort, HDMI 2.1, often USB-C |
| Pixel density | About 105 ppi | About 138 ppi |
| Smart features | TV apps, remote, tuner | Usually none |
| Stand and ergonomics | Fixed TV stand | Height and tilt adjustable |
| Burn-in coverage | Check TV warranty terms | Often 3 years on monitors |
Setup tips
- Sit at least about 3 feet (90 cm) away; you need a deep desk or a wall mount behind it.
- Use PC mode or Game Optimizer and rename the HDMI input to PC so the TV shows full 4:4:4 color.
- Turn on VRR and set the PC to the TV's maximum refresh rate.
- Hide the taskbar, use dark mode, and let the TV run pixel refresh when it asks.
Who should buy one
Buy a 42-inch OLED TV as a monitor if you mostly game and watch media, have a deep desk, and want a screen that doubles as a TV. Buy a 32-inch OLED monitor if you work on it all day, want DisplayPort or USB-C, or care about refresh rates above 165Hz.
Questions we get
Is a 42-inch OLED TV good as a monitor?
For gaming and media on a deep desk, yes: it is 4K, supports high refresh and VRR over HDMI 2.1, and costs about the same as a 32-inch OLED monitor. For office work it is too big for many people, and static desktop elements raise burn-in risk.
What refresh rate do LG's 42-inch OLED TVs support?
The 42-inch LG C5 supports 4K at 144Hz. The 2026 C6 is advertised in Europe at up to 165Hz with G-Sync and FreeSync VRR.
Does an OLED TV warranty cover burn-in?
Check the specific TV's warranty. TV warranties are written for TV use and may not cover burn-in from PC desktops. OLED monitors from Dell, MSI, Acer, Corsair, and most new ASUS models cover burn-in for three years.