Older HDMI versions are limited to carrying a 4K signal at 60fps or a 1080p signal at 120fps. If you select a TV with a 120Hz refresh rate and want to watch 4K content at 120 frames per second (fps), you must ensure that the TV has at least one HDMI 2.1 port. It’s also important to check what type of HDMI ports the TV has.
If that isn’t enough, you can always add an HDMI switch and connect as many devices as you like. The number of HDMI ports you need will depend on the number of devices you want to connect, but most of the best 40-inch TVs include at least three to four ports.
For example, if you watch a lot of 4K content from Netflix, looking for a TV that supports Dolby Vision is essential. If you already use one or more 4K streaming services or have a 4K Blu-Ray player, check to see the specific versions of HDR that you need. Look for a 40-inch TV with HDR10+, Dolby Vision, and Hybrid Log Gamma (HLG) for the best possible picture and compatibility. Look for a TV that supports HDR 10 at the bare minimum. Additionally, the TV must support the specific HDR standard the video content uses. For HDR to work, you need an HDR video source and a TV that supports HDR. High Dynamic Range (HDR) is a feature that allows a TV to display a broader range of brightness and contrast, resulting in brighter, more brilliant colors, darker blacks, and better overall picture quality. Remember that if you sit too close to a 1080p 40-inch TV, the picture won’t look as good as it would on a 4K set. The best resolution for a 40-inch TV is 4K, but good budget options come in 1080p. If the resolution of a TV is too low and you sit too close, you may be able to make out individual pixels in the image, which is visually similar to looking at the world through a screen door.
TVs with higher resolutions have better picture quality. Advanced versions like Neo QLED offer quality closer to OLED, and technologies like Mini LED backlighting that can light specific portions of the screen can also help.
QLED and LED panels are less expensive, but the picture may not be as bright, and the contrast may be lower. OLED panels produce the best picture quality with excellent contrast and rich colors. When comparing 40-inch TVs, you’ll see terms like OLED that refer to the technology used to display images. What to Look For in a 40-inch Smart TV Panel Style and Resolution
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